CN118635333B - Ear winding device for automobile leaf spring - Google Patents

Abstract

The invention discloses an automobile leaf spring ear winding device, and relates to the technical field of leaf spring processing equipment. The steel plate coiling machine comprises a base, a supporting table and a coiling lug die, wherein the supporting table is fixedly arranged on the upper surface of the base, the coiling lug die is arranged on one side of a bending head far away from the supporting table, the coiling lug die consists of a coiling lug part and a head cutting part, the head cutting part is used for cutting a steel plate, and the coiling lug part is used for coiling a steel plate; the inner support is arranged at one side of the ear rolling die, which is far away from the supporting block; and the sliding support is arranged on one side of the supporting block away from the supporting table. Support the tip of steel sheet through setting up the supporting shoe to use the bending head to bend the tip of steel sheet earlier and handle, the rethread is controlled to roll up the ear mould and is moved with the supporting shoe, carries out crop and rolls up the ear to the tip of steel sheet in proper order and handles, thereby realizes accomplishing the processing of bending, crop and the ear of steel sheet through a station.

Description

Ear winding device for automobile leaf spring

Technical Field

The invention relates to the technical field of leaf spring processing equipment, in particular to an automobile leaf spring ear winding device.

Background

The leaf spring mainly serves as an elastic suspension device in an automobile and has buffering and vibration damping effects, the two ends of the leaf spring need to be cut and coiled, and in the production process of the existing double-coiled leaf spring, the process end cutting and the coiled treatment are mutually separated, and a large amount of manual participation is needed in the middle.

In the patent of publication number CN104923657A, a synchronous ear production line of rolling up of leaf spring double-end is proposed, the processing of leaf spring has carried out the streamlined design, through set gradually crop and book earphone on the production line to carry through setting up multiunit manipulator, carry out both ends synchronous crop and book ear automatically, degree of automation is high, has promoted leaf spring machining efficiency by a wide margin.

However, when the device is used, two stations are needed for cutting the head and winding the ears, the device cannot be completed on one station, additional manipulators are needed for carrying and repeatedly aligning, and the arrangement of a plurality of stations increases the occupied area of the device and influences the installation and use of the device.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides an automobile leaf spring ear winding device, which solves the problem that a plurality of stations are required to be arranged to finish head cutting and ear winding treatment.

In order to achieve the above purpose, the invention is realized by the following technical scheme: the automobile leaf spring ear winding device comprises a base and a supporting table, wherein the supporting table is fixedly arranged on the upper surface of the base, two supporting blocks are arranged, the two supporting blocks are respectively and slidably arranged at two ends of the supporting table, the upper surface of the supporting block is level with the upper surface of the supporting table, and one end, far away from the supporting table, of the supporting block is a semicircular cambered surface; the bending head is arranged above the supporting block and far away from one side of the supporting table, the bending head moves in the vertical direction, and the bending head is matched with the supporting block to bend one end of the steel plate downwards along the semicircular cambered surface of the supporting block; the ear rolling die is arranged on one side of the bending head, far away from the supporting table, and consists of an ear rolling part, far away from one end of the supporting block, and a head cutting part, close to one end of the supporting block, and used for cutting the steel plate, and the ear rolling part is used for rolling the steel plate; the inner support is arranged on one side of the ear-rolling die far away from the supporting block, and the ear-rolling die is in sliding connection with the inner support, and slides on the inner support along the length direction of the supporting table so as to adjust the position of the ear-rolling die in the horizontal direction; the sliding support is arranged on one side, far away from the supporting table, of the supporting block, the inner support is in sliding connection with the sliding support, and the inner support slides along the vertical direction of the sliding support so as to adjust the position of the ear rolling die in the vertical direction, the bottom end of the sliding support is in sliding connection with the base, and the sliding support slides along the length direction of the supporting table so as to adjust the position of the ear rolling die and the inner support in the horizontal direction.

Further, when the ear rolling die is in an initial state, the upper surface of the cutting part is flush with the lower surface of the supporting block.

Further, a turning pushing mechanism is arranged between the ear mold and the inner support, the turning pushing mechanism comprises a pushing block, a third sliding block is fixedly arranged on one side, close to the inner support, of the pushing block, a first guide groove matched with the third sliding block is formed in the inner support, the third sliding block slides up and down in the first guide groove in the vertical direction, a pushing rod is rotatably arranged at the lower end of the pushing block, the lower end of the pushing rod is used for pushing the ear mold to horizontally move, a constraint rod is rotatably arranged at the middle point of the pushing rod, one end, far away from the pushing rod, of the constraint rod is rotatably connected to the bottom end of the inner support, and the turning pushing mechanism is used for transferring movement of the pushing block in the vertical direction to movement of the ear mold in the horizontal direction; the bottom end of the ear winding die is fixedly provided with a first sliding block, the inner support is provided with a second guide groove matched with the first sliding block, and the first sliding block slides left and right in the second guide groove along the length direction of the supporting table; the top of sliding support has set firmly the second cylinder, and the top of pushing block has set firmly the second connecting block, and the piston rod and the second connecting block rigid coupling of second cylinder, and the second cylinder is used for driving pushing block and inner support to reciprocate.

Further, a travel amplifying mechanism is rotationally arranged between the direction-changing pushing mechanism and the ear mold, one end of the travel amplifying mechanism is fixedly connected with the internal support, the other end of the travel amplifying mechanism is fixedly connected with the ear mold, and the travel amplifying mechanism is used for increasing the moving distance of the ear mold under the condition that the moving distance of the pushing block is unchanged; the stroke amplifying mechanism comprises two distance changing mechanisms which are arranged in an X shape, and the two distance changing mechanisms are distributed up and down; the distance-changing mechanism comprises a first fixed block fixedly connected with the internal support, a second fixed block is arranged on one side, close to the ear winding die, of the first fixed block, the second fixed block is fixedly connected with the ear winding die, vertical restraint grooves are formed in the opposite sides of the first fixed block and the second fixed block, horizontal restraint grooves are formed in the upper surface and the lower surface of the first fixed block and the second fixed block, and the horizontal restraint grooves penetrate through the vertical restraint grooves; the pitch-changing mechanism further comprises a shearing fork rod, sliding columns are fixedly arranged at two ends of the shearing fork rod, the two ends of the shearing fork rod slide in the vertical constraint groove, the sliding columns slide in the horizontal constraint groove, the shearing fork rod is arranged diagonally between the first fixing block and the second fixing block, a rotating shaft is arranged between the first fixing block and the second fixing block, the rotating shaft is rotationally connected with the overlapped part of the two shearing fork rods, a third connecting block is fixedly arranged at the top end of the rotating shaft, and the third connecting block is rotationally connected with one end of the pushing rod, which is far away from the pushing block.

Further, a second mounting cavity is formed in the bottom end of the sliding support, limit grooves are formed in two opposite side walls of the second mounting cavity, supporting portions are fixedly arranged on two sides of the bottom end of the inner support, the height of each supporting portion is lower than that of the lower surface of the ear rolling die, the supporting portions slide in the vertical direction in the limit grooves, springs are fixedly arranged between the lower surface of the inner support and the bottom end of the second mounting cavity, and the pressure required by downward movement of the inner support is greater than the thrust required by downward movement of the pushing block; a second sliding block is fixedly arranged on one side, close to the sliding support, of the inner support, a vertical sliding groove matched with the second sliding block is formed in the sliding support, and the second sliding block slides in the vertical direction in the vertical sliding groove; the upper end of one side of the sliding support, which is close to the supporting block, is provided with an avoidance groove which is used for avoiding the ear rolling die.

Further, accommodating grooves are formed in the two ends of the supporting table, the supporting blocks slide in the accommodating grooves, anti-falling grooves are formed in the two sides of the accommodating grooves along the width direction of the supporting table, anti-falling blocks matched with the anti-falling grooves are fixedly arranged on the two sides of the supporting blocks, and the anti-falling blocks slide in the anti-falling grooves; the support table is internally provided with a first mounting cavity, the bottom of the accommodating groove is provided with a through groove, the through groove penetrates through the first mounting cavity, the bottom of the support block is fixedly provided with a first connecting block, and the first connecting block slides in the through groove; a first bevel gear is rotationally arranged in the first installation cavity in the vertical direction, second bevel gears are symmetrically meshed with the first bevel gear on two sides of the length direction of the supporting table, a threaded rod is arranged between the second bevel gear and the supporting block, one end of the threaded rod is fixedly connected with the second bevel gear, the other end of the threaded rod is rotationally connected with the supporting table, and the threaded rod is in threaded connection with the first connecting block; the bottom of the supporting table is fixedly provided with a motor for driving the first bevel gear, and the output end of the motor is fixedly connected with the axis of the first bevel gear.

Further, the top at supporting bench both ends is equipped with the clamp head, and the clamp head is used for fixing the upper surface at the supporting bench with the steel sheet, and the upper end of clamp head has set firmly the fourth cylinder that drives the vertical removal of clamp head.

Further, a pressing part is fixedly arranged on one side, close to the supporting block, of the bending head, the width of the pressing part is larger than the radius of the semicircular cambered surface of the supporting block, and a third cylinder for driving the bending head to vertically move is arranged at the upper end of the bending head.

Further, the base is located the both ends of supporting bench and has set firmly the fixed bolster, and the fixed bolster is "C" shape.

Further, the upper surface of the base is fixedly provided with a sliding rail, the bottom end of the sliding support is provided with a support sliding groove matched with the sliding rail, and the sliding rail slides in the support sliding groove relatively; one side of the sliding support, which is far away from the supporting table, is provided with a first air cylinder for driving the sliding support to horizontally move, the first air cylinder is fixedly arranged on the upper surface of the base, and a piston rod of the first air cylinder is fixedly connected with the sliding support.

The invention has the following beneficial effects:

(1) The end of the steel plate is supported by the supporting block, the end of the steel plate is bent by the bending head, the end of the steel plate is sequentially subjected to head cutting and ear winding by controlling the ear winding die and the supporting block to move, bending, head cutting and ear winding of the steel plate are achieved through one station, the number of times that the steel plate needs to move in the machining process is reduced, repeated alignment is not needed, the number of mechanical arms is reduced, and meanwhile the occupied area of equipment is reduced.

(2) Through set up diversion pushing mechanism and stroke amplification mechanism between pushing block and ear mould to accomplish the removal to ear mould's horizontal direction and vertical direction through an cylinder, reduced the quantity of actuating device, and reduced the travel distance of pushing block, thereby reduced the size of device, the installation and the use of device of being convenient for.

Drawings

FIG. 1 is a diagram of the overall structure of the present invention;

FIG. 2 is a front view of the overall structure of the present invention;

FIG. 3 is a schematic illustration of a single-sided structure of the present invention;

FIG. 4 is a diagram showing the combination of the direction changing pushing mechanism and the travel amplifying mechanism according to the present invention;

FIG. 5 is a schematic view of the ear mold according to the present invention;

FIG. 6 is a block diagram of an internal stent of the present invention;

FIG. 7 is a block diagram of the pushing mechanism and the stroke amplifying mechanism of the present invention;

FIG. 8 is a front view of the pusher mechanism and the travel amplifying mechanism of the present invention;

FIG. 9 is an exploded view of the pitch mechanism of the present invention;

FIG. 10 is a block diagram of a sliding support of the present invention;

FIG. 11 is a right side cross-sectional view of a sliding bracket of the present invention;

FIG. 12 is a front cross-sectional view of a sliding bracket of the present invention;

FIG. 13 is a mating view of a support table and support blocks of the present invention;

FIG. 14 is a view showing the internal structure of the support stand of the present invention;

fig. 15 is a structural view of a bending head according to the present invention.

In the figure, 1, a steel plate; 2. a base; 3. a support table; 301. a receiving groove; 302. an anti-drop groove; 303. a through groove; 304. a first mounting cavity; 305. a fixing plate; 4. a fixed bracket; 5. a sliding support; 501. a second mounting cavity; 502. an avoidance groove; 503. a limit groove; 504. a bracket chute; 505. a vertical chute; 6. a first cylinder; 7. a second cylinder; 8. a third cylinder; 9. a fourth cylinder; 10. a compacting head; 11. positioning columns; 12. a support block; 1201. an anti-falling block; 1202. a first connection block; 13. a motor; 14. a slide rail; 15. bending the elbow; 1501. a pressing part; 16. ear rolling mould; 1601. winding the lug part; 1602. cutting the head; 1603. a first slider; 17. an internal support; 1701. a first guide groove; 1702. a support part; 1703. a second guide groove; 1704. a second slider; 18. a pushing block; 1801. a second connection block; 1802. a third slider; 19. a pushing rod; 20. a first fixed block; 2001. a vertical restraint slot; 2002. a horizontal restraint slot; 21. a restraining bar; 22. a third connecting block; 23. a second fixed block; 24. a scissors fork rod; 25. a support cylinder; 26. a rotating shaft; 27. a sliding column; 28. a spring; 29. a first bevel gear; 30. a second bevel gear; 31. a threaded rod.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

In the description of the present invention, it should be understood that the terms "open," "upper," "lower," "thickness," "top," "middle," "length," "inner," "peripheral," and the like indicate orientation or positional relationships, merely for convenience in describing the present invention and to simplify the description, and do not indicate or imply that the components or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.

An automobile leaf spring ear device according to an embodiment of the present invention is described below with reference to fig. 1 to 15.

Referring to fig. 1 to 6, the embodiment of the present invention provides a technical solution: the utility model provides an automobile leaf spring ear winding device, includes base 2 and brace table 3, and brace table 3 sets firmly in the upper surface of base 2, when carrying out crop and ear winding processing to steel sheet 1 generally, needs to remove steel sheet 1 to place on brace table 3 to in passing the locating hole at steel sheet 1 middle part with reference column 11 on the brace table 3, thereby play the positioning effect.

The steel plate bending machine further comprises supporting blocks 12, wherein the two supporting blocks 12 are arranged, the two supporting blocks 12 are respectively arranged at two ends of the supporting table 3 in a sliding mode, meanwhile, the upper surface of the supporting block 12 is flush with the upper surface of the supporting table 3, so that the steel plate 1 can be horizontally placed on the supporting table 3, one end, far away from the supporting table 3, of the supporting block 12 is arranged to be a semicircular cambered surface, and the end portion of the steel plate 1 can be conveniently shaped into a circular arc shape during bending treatment; the supporting blocks 12 are in an extending state during bending and end cutting processing so as to play a supporting role for the end parts of the steel plates 1, and the supporting blocks 12 are in a retracting state during ear rolling processing so as to provide enough processing space for ear rolling processing.

And, still be provided with the bending head 15 in the top of supporting shoe 12 and keep away from the one side of supporting bench 3, the bending head 15 moves in vertical direction, the horizontal distance of the semicircular cambered surface of one side that the bending head 15 is close to supporting shoe 12 and supporting shoe 12 remains the distance of a steel sheet 1 thickness at least, so that steel sheet 1 can not block between supporting shoe 12 and bending head 15 in the bending process, when bending head 15 vertically moves down, can cooperate with supporting shoe 12 to bend down the one end of steel sheet 1 along the semicircular cambered surface of supporting shoe 12, thereby bend the tip of steel sheet 1 into convex in order to follow-up the processing of cutting head and ear.

In addition, a lug rolling die 16 is further disposed on one side of the bending head 15 far away from the supporting table 3, the lug rolling die 16 is used for cutting and rolling the end of the steel plate 1, in order to simultaneously perform the functions of cutting and rolling the lug through the lug rolling die 16, the lug rolling die 16 is composed of a lug rolling portion 1601 far away from one end of the supporting block 12 and a head cutting portion 1602 close to one end of the supporting block 12, the head cutting portion 1602 is used for cutting the steel plate 1, the head cutting portion 1602 is in a flat plate shape, the lug rolling portion 1601 is used for rolling the steel plate 1, the lug rolling portion 1601 is in a semicircular arc shape, and the arc radius of the lug rolling portion 1601 is at least the sum of the radius of the arc surface of the end of the supporting block 12 and the thickness of the steel plate 1, so that the end of the steel plate 1 can be accommodated in the lug rolling portion 1601.

In addition, an inner bracket 17 is provided on a side of the ear mold 16 away from the support block 12, and the ear mold 16 is slidably connected to the inner bracket 17, and the ear mold 16 slides on the inner bracket 17 along the length direction of the support table3 to adjust the position of the ear mold 16 in the horizontal direction, and when the ear mold 16 moves toward the end of the steel plate 1, the head 1602 performs the head cutting process on the steel plate 1.

Furthermore, a sliding support 5 is arranged on one side of the supporting block 12 far away from the supporting table 3, an inner support 17 is in sliding connection with the sliding support 5, the inner support 17 slides along the vertical direction of the sliding support 5 so as to adjust the position of the ear rolling die 16 in the vertical direction, when the ear rolling die 16 finishes the head cutting treatment, the inner support 17 drives the ear rolling die 16 to move downwards by a distance equal to the thickness of the steel plate 1, and at the moment, the supporting block 12 slides into the supporting table 3 to reserve a processing space for the subsequent ear rolling treatment; the bottom end of the sliding support 5 is in sliding connection with the base 2, the sliding support 5 slides along the length direction of the supporting table 3 to adjust the positions of the ear rolling die 16 and the internal support 17 in the horizontal direction, the internal support 17 after the downward movement drives the ear rolling die 16 to move towards the end part of the steel plate 1 under the support of the sliding support 5, and therefore the ear rolling part 1601 pushes the end part of the steel plate 1 to form an ear rolling, and ear rolling processing is completed.

In this embodiment, support the tip of steel sheet 1 through supporting shoe 12 to use bending head 15 to carry out bending treatment to the tip of steel sheet 1 earlier, rethread control ear mould 16 and supporting shoe 12 remove, carry out crop and ear to the tip of steel sheet 1 in proper order and handle, thereby realize accomplishing the processing of bending, crop and ear of steel sheet 1 through a station, reduce the number of times that steel sheet 1 need remove in the course of working, do not need repeatedly counterpoint, then reduced the setting of manipulator quantity, still reduced the area of equipment simultaneously.

In order that the ear mold 16 does not collide with the support block 12 at the time of the head cutting process, the upper surface of the head cutting portion 1602 is made flush with the lower surface of the support block 12 when the ear mold 16 is in the initial state.

In order to reduce the number of driving devices and reduce the cost of the devices, a direction-changing pushing mechanism is arranged between the ear-rolling die 16 and the inner support 17, the direction-changing pushing mechanism is used for driving the ear-rolling die 16 to horizontally move or driving the inner support 17 to vertically move, the direction-changing pushing mechanism comprises a pushing block 18, a third sliding block 1802 is fixedly arranged on one side, close to the inner support 17, of the pushing block 18, a first guide groove 1701 which is matched with the third sliding block 1802 is formed in the inner support 17, the third sliding block 1802 slides vertically in the first guide groove 1701, the third sliding block 1802 and the first guide groove 1701 are preferably of trapezoid structures, so that the pushing block 18 cannot fall from the first guide groove 1701 during sliding, a pushing rod 19 is rotatably arranged at the lower end of the pushing block 18, the lower end of the pushing rod 19 is used for pushing the ear-rolling die 16 to horizontally move, a restraint rod 21 is rotatably arranged at the middle point of the pushing rod 19, one end, far away from the rod 19, of the restraint rod 21 is rotatably connected to the bottom end of the inner support 17, a rotational connection point on the inner support 17 is located at the position of the restraint rod 21, and is located at the upper end of the vertical rod 19 of the rotating connection point of the pushing rod 19 in the inner support 17, and can smoothly move in the horizontal direction of the horizontal direction through the pushing rod 19, and the pushing mechanism can move horizontally in the horizontal direction through the pushing rod 19, and the pushing mechanism is capable of moving smoothly in the horizontal direction when moving direction of the pushing rod 19.

The first slider 1603 is fixed to the bottom end of the ear mold 16, the second guide groove 1703 engaging with the first slider 1603 is provided on the inner holder 17, the first slider 1603 slides laterally in the longitudinal direction of the support table 3 in the second guide groove 1703, and the first slider 1603 engages with the second guide groove 1703 to restrain the horizontal movement of the ear mold 16, thereby improving the stability of the ear mold 16 during movement.

In addition, a second cylinder 7 is fixedly arranged at the top end of the sliding support 5, a second connecting block 1801 is fixedly arranged at the upper end of the pushing block 18, a piston rod of the second cylinder 7 is fixedly connected with the second connecting block 1801, and the second cylinder 7 is used for driving the pushing block 18 and the internal support 17 to move up and down.

In this embodiment, the second cylinder 7 drives the pushing block 18 to move downward, and the ear-rolling die 16 is moved toward the end of the steel plate 1 in the horizontal direction by the direction-changing pushing mechanism, when the pushing block 18 moves downward to the maximum distance, the ear-rolling die 16 completes the end-cutting process of the steel plate 1, and continues to move the second cylinder 7 to drive the pushing block 18 downward, so that the inner bracket 17 moves downward, and then the ear-rolling die 16 moves downward, thereby facilitating the subsequent ear-rolling process.

In order to reduce the moving distance of the pushing block 18 and thus reduce the overall size of the device, a travel amplifying mechanism is rotatably provided between the direction-changing pushing mechanism and the ear mold 16, one end of the travel amplifying mechanism is fixedly connected with the inner bracket 17 as a support, the other end of the travel amplifying mechanism is fixedly connected with the ear mold 16 for driving, and the travel amplifying mechanism is used for increasing the moving distance of the ear mold 16 under the condition that the moving distance of the pushing block 18 is unchanged.

In addition, the stroke amplifying mechanism comprises two distance changing mechanisms which are arranged in an X shape, the two distance changing mechanisms are distributed up and down, and the two distance changing mechanisms are matched together to form a scissor-shaped structure.

The pitch-changing mechanism includes a first fixing block 20 fixedly connected to the inner bracket 17, a second fixing block 23 is provided on a side of the first fixing block 20 close to the ear mold 16, the second fixing block 23 is fixedly connected to the ear mold 16, vertical restraint grooves 2001 are provided on sides of the first fixing block 20 opposite to the second fixing block 23, horizontal restraint grooves 2002 are provided on upper and lower surfaces of the first fixing block 20 and the second fixing block 23, the horizontal restraint grooves 2002 penetrate through the vertical restraint grooves 2001, and in reality, the first fixing block 20 and the second fixing block 23 have the same structure and are arranged opposite to each other on the same horizontal plane.

And, the pitch mechanism still includes the scissors fork 24, the both ends of scissors fork 24 have all set firmly slip post 27, the both ends of scissors fork 24 slide in perpendicular restriction groove 2001, and slip post 27 slides in horizontal restriction groove 2002, thereby make scissors fork 24 still receive the spacing of horizontal restriction groove 2002 when receiving perpendicular restriction groove 2001 to scissors fork 24 is in the diagonal setting between first fixed block 20 and second fixed block 23, in addition, be equipped with pivot 26 between first fixed block 20 and second fixed block 23, pivot 26 and the overlapping department rotation connection of two scissors fork 24, can set up support cylinder 25 in order to support two scissors fork 24 on the outer peripheral face that pivot 26 is located between two scissors fork 24, thereby improve the stability when the motion of stroke amplification mechanism, third connecting block 22 has been set firmly at the top of pivot 26, third connecting block 22 and the one end that push rod 19 kept away from push block 18 rotate and be connected.

In this embodiment, the pushing rod 19 pushes the third connecting block 22, so as to push the stroke amplifying mechanism to move, and then the second fixed block 23 pushes the ear mold 16 to move, the amplification factor of the stroke amplifying mechanism is determined by the position of the rotating shaft 26 on the scissor rod 24, when the position of the rotating shaft 26 on the scissor rod 24 is close to the first fixed block 20, the amplification factor of the stroke amplifying mechanism is increased, and when the position of the rotating shaft 26 on the scissor rod 24 is close to the second fixed block 23, the amplification factor of the stroke amplifying mechanism is decreased.

Referring to fig. 10 to 12, in order to improve the stability and reliability of the movement of the inner bracket 17 in the vertical direction, a second installation cavity 501 is provided at the bottom end of the sliding bracket 5, two opposite side walls of the second installation cavity 501 are provided with limiting grooves 503, two sides of the bottom end of the inner bracket 17 are fixedly provided with supporting portions 1702, the height of each supporting portion 1702 is lower than the lower surface of the ear rolling die 16, each supporting portion 1702 slides in the vertical direction in the corresponding limiting groove 503, preferably, the distance between each supporting portion 1702 and the lower surface of the corresponding limiting groove 503 is a distance of one thickness of the steel plate 1, so that the movement distance of the inner bracket 17 in the vertical direction is limited, a spring 28 is fixedly provided between the lower surface of the inner bracket 17 and the bottom end of the second installation cavity 501, and the pressure required for downward movement of the inner bracket 17 is greater than the thrust required for downward movement of the pushing block 18, so that the inner bracket 17 is in a static state when the pushing block 18 moves downward.

The second slider 1704 is fixed on the side of the inner bracket 17 near the sliding bracket 5, and the sliding bracket 5 is provided with the vertical sliding groove 505 engaged with the second slider 1704, so that the second slider 1704 slides in the vertical direction in the vertical sliding groove 505, preferably the second slider 1704 and the vertical sliding groove 505 have a trapezoid structure, so that the vertical sliding groove 505 has a constraint function on the inner bracket 17 in the horizontal direction.

In addition, an avoidance groove 502 is formed in the upper end of the sliding support 5, which is close to one side of the supporting block 12, and when the inside of the sliding support moves downwards, the ear rolling die 16 moves together with the sliding support, at the moment, the ear rolling die 16 is in an extending state, and the avoidance groove 502 can prevent the ear rolling die 16 from colliding with the sliding support 5.

Referring to fig. 13 and 14, in order to allow the support block 12 to be received in the support stand 3 after the end cutting operation is completed, so as to provide a space for the ear winding operation, receiving grooves 301 are formed at both ends of the support stand 3, the support block 12 slides in the receiving grooves 301 and is received in the receiving grooves 301, anti-falling grooves 302 are formed at both sides of the receiving grooves 301 in the width direction of the support stand 3, anti-falling blocks 1201 engaging with the anti-falling grooves 302 are fixedly formed at both sides of the support block 12, and the anti-falling blocks 1201 slide in the anti-falling grooves 302 to prevent the support block 12 from falling out of the receiving grooves 301.

Moreover, a first installation cavity 304 is formed in the support table 3, a through groove 303 is formed in the bottom of the accommodating groove 301, the through groove 303 penetrates through the first installation cavity 304, a first connection block 1202 is fixedly arranged at the bottom of the support block 12, the first connection block 1202 is located in the first installation cavity 304, and the first connection block 1202 slides in the through groove 303.

In addition, in order to drive the support block 12 to move, a first bevel gear 29 is rotationally arranged in the first installation cavity 304 in the vertical direction, a second bevel gear 30 is symmetrically meshed with the first bevel gear 29 on two sides of the length direction of the support table 3, the first bevel gear 29 is vertically arranged with the second bevel gear 30, a threaded rod 31 is arranged between the second bevel gear 30 and the support block 12, one end of the threaded rod 31 is fixedly connected with the second bevel gear 30, the other end of the threaded rod 31 is rotationally connected with the support table 3, a fixing plate 305 can be further arranged on one side of the threaded rod 31 close to the second bevel gear 30, the threaded rod 31 is rotationally connected with the fixing plate 305, so that the fixing stability of the threaded rod 31 is improved, the threaded rod 31 is in threaded connection with the first connection block 1202, a motor 13 for driving the first bevel gear 29 is fixedly arranged at the bottom of the support table 3, and the output end of the motor 13 is fixedly connected with the axis of the first bevel gear 29, so that the support block 12 is driven to move by the motor 13.

Referring to fig. 2 and 3, in order to fix the steel plate 1, a pressing head 10 is disposed above two ends of the supporting table 3, the pressing head 10 is used for fixing the steel plate 1 on the upper surface of the supporting table 3, and a fourth cylinder 9 for driving the pressing head 10 to move vertically is fixed at the upper end of the pressing head 10.

In order to avoid the steel plate 1 at the bending position from rising when the steel plate 1 is bent, combining with fig. 2 and 15, a pressing part 1501 is fixedly arranged at one side of the bending head 15, which is close to the supporting block 12, and the width of the pressing part 1501 is larger than the radius of the semicircular cambered surface of the supporting block 12, so that the pressing part 1501 is used for limiting the deformation of the steel plate 1 at the bending position, and a third cylinder 8 for driving the bending head 15 to vertically move is arranged at the upper end of the bending head 15.

Referring to fig. 2 and 3, in order to fix the third cylinder 8 and the fourth cylinder 9, fixing brackets 4 are fixedly arranged at two ends of the base 2, which are positioned on the supporting table 3, and the fixing brackets 4 are in a 'C' shape, so that the steel plate 1 is conveniently placed on the supporting table 3 from the notch of the fixing bracket 4, and the third cylinder 8 and the fourth cylinder 9 are fixed at the upper ends of the fixing brackets 4.

Referring to fig. 2 and 3, in order to drive the sliding support 5 to move in the horizontal direction, a sliding rail 14 is fixedly arranged on the upper surface of the base 2, a support sliding groove 504 engaged with the sliding rail 14 is formed at the bottom end of the sliding support 5, the sliding rail 14 slides relatively in the support sliding groove 504, a first air cylinder 6 for driving the sliding support 5 to move horizontally is arranged on one side of the sliding support 5 far away from the supporting table 3, the first air cylinder 6 is fixedly arranged on the upper surface of the base 2, and a piston rod of the first air cylinder 6 is fixedly connected with the sliding support 5, so that the first air cylinder 6 can drive the sliding support 5 to move.

During operation, the steel plate 1 is placed on the supporting table 3, then the fourth air cylinder 9 is started to drive the pressing head 10 to move downwards to press and fix the steel plate 1, the third air cylinder 8 is started to drive the bending head 15 to move downwards, and the bending head 15 is matched with the supporting block 12 to bend one end of the steel plate 1 downwards along the semicircular cambered surface of the supporting block 12, so that the end of the steel plate 1 is bent into a circular arc shape.

After bending, the bending head 15 is reset, the second air cylinder 7 is started to drive the pushing block 18 to vertically move downwards, the ear rolling die 16 is pushed to horizontally move through the turning pushing mechanism and the travel amplifying mechanism, and in the process that the ear rolling die 16 moves towards the supporting block 12, the head cutting part 1602 and the supporting block 12 are matched to cut the head of the steel plate 1.

When the pushing block 18 moves downwards to the maximum position, the second cylinder 7 stops when the end of the steel plate 1 is cut by the ear winding die 16, then the driving motor 13 drives the first bevel gear 29 to rotate, and the supporting block 12 is driven to move by driving the threaded rod 31 to rotate, so that the supporting block 12 moves into the accommodating groove 301 to leave a space for the subsequent ear winding action.

The second cylinder 7 is then driven continuously, the inner bracket 17 is moved downwards on the sliding bracket 5 against the force of the spring 28 by a distance equal to the thickness of the steel plate 1, the second cylinder 7 is stopped after the position is reached, the first cylinder 6 is started to push the sliding bracket 5 to move towards the supporting table 3 in the horizontal direction so as to push the end part of the steel plate 1, the ear rolling action is completed, and after the ear rolling action is completed, the sliding bracket 5, the ear rolling die 16, the pressing head 10 and the supporting block 12 are reset by starting the first cylinder 6, the second cylinder 7, the fourth cylinder 9 and the motor 13.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

The preferred embodiments of the invention disclosed above are intended only to assist in the explanation of the invention. The preferred embodiments are not exhaustive or to limit the invention to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best understand and utilize the invention.

Claims (8)

1. The utility model provides an automobile leaf spring ear winding device, includes base (2) and brace table (3), brace table (3) set firmly in the upper surface of base (2), its characterized in that still includes:

The support blocks (12) are arranged, the two support blocks (12) are respectively arranged at two ends of the support table (3) in a sliding mode, the upper surface of the support block (12) is flush with the upper surface of the support table (3), and one end, far away from the support table (3), of the support block (12) is a semicircular cambered surface;

The bending head (15) is arranged above the supporting block (12) and far away from one side of the supporting table (3), the bending head (15) moves in the vertical direction, and one end of the steel plate (1) is bent downwards along the semicircular cambered surface of the supporting block (12) by matching the bending head (15) with the supporting block (12);

The ear rolling die (16), the ear rolling die (16) is arranged on one side of the bending head (15) far away from the supporting table (3), the ear rolling die (16) is composed of an ear rolling part (1601) far away from one end of the supporting block (12) and a head cutting part (1602) close to one end of the supporting block (12), the head cutting part (1602) is used for cutting the head of the steel plate (1), and the ear rolling part (1601) is used for rolling the ear of the steel plate (1);

The inner support (17), the said inner support (17) locates one side far away from supporting block (12) of the ear mold (16), and the said ear mold (16) is connected with inner support (17) slidably, the said ear mold (16) slides along the length direction of the supporting bench (3) on the inner support (17) in order to adjust the position of the ear mold (16) in the horizontal direction;

the sliding support (5), one side of supporting block (12) far away from supporting bench (3) is located to sliding support (5), inside support (17) and sliding support (5) sliding connection, just inside support (17) are along the vertical direction of sliding support (5) to adjust the position of ear mold (16) in the vertical direction, the bottom of sliding support (5) and base (2) sliding connection, just sliding support (5) are along the length direction of supporting bench (3) sliding, in order to adjust the position of ear mold (16) and inside support (17) in the horizontal direction;

A direction-changing pushing mechanism is arranged between the ear winding die (16) and the inner support (17), the direction-changing pushing mechanism comprises a pushing block (18), a third sliding block (1802) is fixedly arranged on one side, close to the inner support (17), of the pushing block (18), a first guide groove (1701) which is matched with the third sliding block (1802) is formed in the inner support (17), the third sliding block (1802) slides up and down in the first guide groove (1701), a pushing rod (19) is rotationally arranged at the lower end of the pushing block (18), the lower end of the pushing rod (19) is used for pushing the ear winding die (16) to horizontally move, a constraint rod (21) is rotationally arranged at the middle point of the pushing rod (19), one end, far away from the pushing rod (19), of the constraint rod (21) is rotationally connected to the bottom end of the inner support (17), and the pushing mechanism is used for moving the pushing block (18) in the vertical direction to move the ear winding die (16) in the horizontal direction;

A first sliding block (1603) is fixedly arranged at the bottom end of the ear rolling die (16), a second guide groove (1703) which is matched with the first sliding block (1603) is formed in the inner support (17), and the first sliding block (1603) slides leftwards and rightwards in the second guide groove (1703) along the length direction of the supporting table (3);

The top end of the sliding support (5) is fixedly provided with a second air cylinder (7), the top end of the pushing block (18) is fixedly provided with a second connecting block (1801), a piston rod of the second air cylinder (7) is fixedly connected with the second connecting block (1801), and the second air cylinder (7) is used for driving the pushing block (18) and the internal support (17) to move up and down;

a travel amplifying mechanism is rotationally arranged between the direction-changing pushing mechanism and the ear-rolling die (16), one end of the travel amplifying mechanism is fixedly connected with the internal support (17), the other end of the travel amplifying mechanism is fixedly connected with the ear-rolling die (16), and the travel amplifying mechanism is used for increasing the moving distance of the ear-rolling die (16) under the condition that the moving distance of the pushing block (18) is unchanged;

the stroke amplifying mechanism comprises two distance changing mechanisms which are arranged in an X shape, and the two distance changing mechanisms are distributed up and down;

The variable-pitch mechanism comprises a first fixed block (20) fixedly connected with an internal support (17), a second fixed block (23) is arranged on one side, close to the ear rolling die (16), of the first fixed block (20), the second fixed block (23) is fixedly connected with the ear rolling die (16), vertical restraint grooves (2001) are formed in one side, opposite to the first fixed block (20) and the second fixed block (23), of the first fixed block (20), horizontal restraint grooves (2002) are formed in the upper surface and the lower surface of the second fixed block (23), and the horizontal restraint grooves (2002) are communicated to the vertical restraint grooves (2001);

The pitch mechanism further comprises a shearing fork rod (24), sliding columns (27) are fixedly arranged at two ends of the shearing fork rod (24), two ends of the shearing fork rod (24) slide in vertical constraint grooves (2001), the sliding columns (27) slide in horizontal constraint grooves (2002), the shearing fork rod (24) is diagonally arranged between a first fixing block (20) and a second fixing block (23), a rotating shaft (26) is arranged between the first fixing block (20) and the second fixing block (23), the overlapped parts of the rotating shaft (26) and the two shearing fork rods (24) are rotationally connected, a third connecting block (22) is fixedly arranged at the top end of the rotating shaft (26), and one end, far away from the pushing block (18), of the third connecting block (22) is rotationally connected with one end, far away from the pushing rod (19).

2. An automobile leaf spring eye device as claimed in claim 1, wherein:

when the ear rolling die (16) is in an initial state, the upper surface of the head cutting part (1602) is flush with the lower surface of the supporting block (12).

3. An automobile leaf spring eye device as claimed in claim 1, wherein:

the bottom end of the sliding support (5) is provided with a second installation cavity (501), two opposite side walls of the second installation cavity (501) are provided with limit grooves (503), two sides of the bottom end of the inner support (17) are fixedly provided with supporting parts (1702), the height of each supporting part (1702) is lower than that of the lower surface of the corresponding ear rolling die (16), the supporting parts (1702) slide in the limit grooves (503) in the vertical direction, and springs (28) are fixedly arranged between the lower surface of the inner support (17) and the bottom end of the second installation cavity (501);

a second sliding block (1704) is fixedly arranged on one side, close to the sliding support (5), of the inner support (17), a vertical sliding groove (505) matched with the second sliding block (1704) is formed in the sliding support (5), and the second sliding block (1704) slides in the vertical direction in the vertical sliding groove (505).

4. A leaf spring eye arrangement for a motor vehicle according to claim 3, wherein:

The two ends of the supporting table (3) are provided with accommodating grooves (301), and the supporting blocks (12) slide in the accommodating grooves (301);

A first mounting cavity (304) is formed in the supporting table (3), a through groove (303) is formed in the bottom of the accommodating groove (301), the through groove (303) penetrates through the first mounting cavity (304), a first connecting block (1202) is fixedly arranged at the bottom of the supporting block (12), and the first connecting block (1202) slides in the through groove (303);

The first bevel gear (29) is rotationally arranged in the first mounting cavity (304) in the vertical direction, the first bevel gear (29) is symmetrically meshed with the second bevel gear (30) on two sides of the length direction of the supporting table (3), a threaded rod (31) is arranged between the second bevel gear (30) and the supporting block (12), one end of the threaded rod (31) is fixedly connected with the second bevel gear (30), the other end of the threaded rod (31) is rotationally connected with the supporting table (3), and the threaded rod (31) is in threaded connection with the first connecting block (1202);

The bottom of the supporting table (3) is fixedly provided with a motor (13) for driving the first bevel gear (29).

5. An automobile leaf spring eye device as claimed in claim 1, wherein:

the upper portion at supporting bench (3) both ends is equipped with and compresses tightly head (10), compress tightly head (10) are used for fixing steel sheet (1) at the upper surface of supporting bench (3), compress tightly the upper end of head (10) and have set firmly fourth cylinder (9) that drive compresses tightly head (10) vertical movement.

6. An automobile leaf spring eye device as claimed in claim 1, wherein:

One side of the bending head (15) close to the supporting block (12) is fixedly provided with a pressing part (1501), the width of the pressing part (1501) is larger than the radius of a semicircular cambered surface of the supporting block (12), and the upper end of the bending head (15) is provided with a third cylinder (8) for driving the bending head (15) to vertically move.

7. An automobile leaf spring eye device as claimed in claim 5 or 6, wherein:

The base (2) is located at two ends of the supporting table (3) and is fixedly provided with fixing brackets (4), and the fixing brackets (4) are C-shaped.

8. An automobile leaf spring eye device as claimed in claim 1, wherein:

A sliding rail (14) is fixedly arranged on the upper surface of the base (2), a bracket sliding groove (504) which is matched with the sliding rail (14) is formed in the bottom end of the sliding bracket (5), and the sliding rail (14) relatively slides in the bracket sliding groove (504);

One side of the sliding support (5) far away from the supporting table (3) is provided with a first air cylinder (6) for driving the sliding support (5) to horizontally move, the first air cylinder (6) is fixedly arranged on the upper surface of the base (2), and a piston rod of the first air cylinder (6) is fixedly connected with the sliding support (5).