CN115971906A

CN115971906A - Workpiece positioning and clamping equipment

Info

Publication number: CN115971906A
Application number: CN202310164402.4A
Authority: CN
Inventors: 冯相麟
Original assignee: Shanghai Yuchuangda Automation Equipment Co ltd
Current assignee: Shanghai Yuchuangda Automation Equipment Co ltd
Priority date: 2023-02-25
Filing date: 2023-02-25
Publication date: 2023-04-18

Abstract

The invention relates to the technical field of workpiece processing equipment, in particular to workpiece positioning and clamping equipment which comprises a workbench, wherein positioning plates are arranged on the workbench in a relatively slidable manner, a first clamping plate is arranged on one side, close to the positioning plates on the two sides, of the workbench in a relatively slidable manner along the vertical direction, a second clamping plate is arranged in a relatively slidable manner along the horizontal direction, and the first clamping plate and the second clamping plate are respectively connected with a first adjusting mechanism for driving the first clamping plate and the second clamping plate to move; still include second adjustment mechanism, second adjustment mechanism is connected with the locating plate, second adjustment mechanism is used for driving both sides locating plate and slides on the workstation, when round pin axle is transferred towards the nearly heart end of carousel in the arc wall, fly leaf compression telescopic sleeve shrink, and is synchronous, reset spring shrink produces elasticity, when round pin axle is transferred towards the far heart end of carousel in the arc wall, reset spring drives the fly leaf and resets under the elastic force effect, make first grip block and second grip block can carry out the adaptability based on the cross-sectional dimension of work piece and adjust.

Description

Workpiece positioning and clamping equipment

Technical Field

The invention relates to the technical field of workpiece processing equipment, in particular to workpiece positioning and clamping equipment.

Background

The clamp types can be divided into: the universal fixture, the special fixture, the adjustable fixture and the combined fixture belong to the special fixtures, such as lathe fixtures, milling machine fixtures, drill jigs, follow-up fixtures and the like which are commonly used. In the process of machining parts, operations such as cutting, drilling, milling and the like are often performed on some shaft parts, and in the first step, the shaft parts need to be clamped and positioned by using a clamp.

In the prior art, for example, a patent document with the publication number CN212043637U discloses a workpiece clamping device, and discloses that a workpiece with a gear is clamped between a chuck and a positioning piece, one side of a claw soft grab of each chuck, which is far away from a fixed seat, is provided with a lengthened claw, the lengthened claw is L-shaped, the longer end of the lengthened claw, which is far away from a connecting part of the lengthened claw soft grab, is provided with a first mounting screw hole, the claw soft grab is provided with a second screw hole corresponding to the first mounting screw hole, the lengthened claw and the claw soft grab are fixed through screws, the end part of the short side of the lengthened claw is provided with a fixing plate in parallel protrusion with the long side of the lengthened claw, and the fixing plate is provided with a locking assembly towards the claw soft grab direction; however, in the practical application process, the clamping and fixing device only clamps and fixes the cylindrical workpiece, and for the rectangular or square workpiece with a square partial cross section, a plurality of positioning bolts still need to be screwed manually for fixing, so that the operation process is complicated.

Disclosure of Invention

In order to solve the technical problem, the invention provides a workpiece positioning and clamping device.

The invention provides a workpiece positioning and clamping device which comprises a workbench, wherein positioning plates are arranged on the workbench in a relatively slidable manner, a first clamping plate is arranged on one side, close to the positioning plates on the two sides, of the workbench in a relatively slidable manner along the vertical direction, and a second clamping plate is arranged in a relatively slidable manner along the horizontal direction, wherein the first clamping plate and the second clamping plate are respectively connected with a first adjusting mechanism for driving the first clamping plate and the second clamping plate to move;

the positioning device further comprises a second adjusting mechanism, the second adjusting mechanism is connected with the positioning plates, and the second adjusting mechanism is used for driving the positioning plates on the two sides to slide on the workbench.

Preferably, the positioning plate is provided with a plurality of groups of vertical sliding grooves, wherein the first clamping plate is in sliding connection with the sliding grooves arranged along the horizontal direction, and the second clamping plate is in sliding connection with the sliding grooves arranged along the vertical direction.

Preferably, the first adjusting mechanism comprises a plurality of sets of movable plates slidably arranged on one side of the positioning plate, and the movable plates are respectively and fixedly connected with the first clamping plate and the second clamping plate through connecting rods penetrating through the sliding grooves.

Preferably, the first adjusting mechanism further comprises a rotating disc which is rotatably arranged on one side of the positioning plate, a plurality of groups of arc-shaped grooves are circumferentially arranged on the rotating disc in an array manner, the arc-shaped grooves extend from the end close to the center of a circle to the direction far away from the center of a circle on the rotating disc, pin shafts fixedly connected with the movable plate are movably embedded in the arc-shaped grooves, and the rotating discs on the two sides are respectively connected with a rotating mechanism which drives the rotating discs to rotate.

Preferably, an L-shaped support plate is arranged on the workbench in a relatively sliding mode, one end of the rotary table is rotatably connected with the positioning plate, and the other end of the rotary table is rotatably connected with the L-shaped support plate.

Preferably, the rotating mechanism comprises a first motor arranged outside the L-shaped support plate on one side, the output end of the first motor is fixedly connected with the turntable, a barrel is arranged on the side end of the L-shaped support plate on one side in a rotating mode, a limiting rod is arranged in the barrel in an inserting mode, the tail end of the limiting rod is connected with the L-shaped support plate on the other side in a rotating mode, the barrel and the limiting rod are connected with the turntable in a transmission mode through a belt and a belt pulley, a plurality of groups of limiting clamping grooves are formed in the inner end face of the barrel, and limiting clamping seats in one-to-one correspondence with the limiting clamping grooves are correspondingly arranged on the limiting rod.

Preferably, the turntable is provided with a plurality of groups of telescopic sleeves in a circumferential array manner in the direction towards the positioning plate, the tail ends of the telescopic sleeves are fixedly connected with the movable plate, and the telescopic sleeves are provided with return springs.

Preferably, the second adjusting mechanism comprises a driving box body arranged on the workbench, a screw rod is arranged in the driving box body in a rotating mode, the screw rod is fixedly connected with the output end of a second motor arranged on the outer side of the driving box body, the thread directions of two sides of the screw rod are opposite, and a nut fixedly connected with the L-shaped support plate is arranged on the screw rod relative to the screw sleeve.

Preferably, the workbench is provided with a guide groove, and a guide seat fixedly connected with the L-shaped support plate is arranged in the guide groove in a sliding manner.

Compared with the related art, the workpiece positioning and clamping equipment provided by the invention has the following beneficial effects:

when the workpiece is positioned and clamped, two ends of the workpiece are placed between the first clamping plate and the second clamping plate, the first adjusting mechanism drives the first clamping plate and the second clamping plate to approach each other, so that the first clamping plate and the second clamping plate are respectively contacted with each side face of the workpiece, and clamping and fixing of the workpiece are realized through the first clamping plate and the second clamping plate.

Drawings

FIG. 1 is a schematic structural view of a preferred embodiment of a workpiece positioning and clamping apparatus according to the present invention;

FIG. 2 is a first schematic structural view of a workpiece positioning and clamping apparatus shown in FIG. 1;

FIG. 3 is a second schematic structural view of the workpiece positioning and clamping apparatus shown in FIG. 1;

FIG. 4 is a schematic structural view of a positioning plate of the workpiece positioning and clamping apparatus shown in FIG. 1;

fig. 5 is a schematic structural diagram of a screw in the workpiece positioning and clamping apparatus shown in fig. 1.

Reference numbers in the figures: 1. a work table; 2. a driving box body; 3. an L-shaped support plate; 4. a turntable; 5. positioning a plate; 6. a cylinder body; 101. a guide groove; 201. a screw; 202. a second motor; 203. a nut; 301. a guide seat; 401. an arc-shaped slot; 402. a pin shaft; 403. a movable plate; 404. a first motor; 405. a telescopic sleeve; 406. a return spring; 501. a first clamping plate; 502. a second clamping plate; 503. a chute; 601. a limiting rod; 602. a limiting clamping seat; 603. a belt.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Specific implementations of the present invention are described in detail below with reference to specific embodiments.

Example 1

Referring to fig. 1 to 2, a workpiece positioning and clamping apparatus provided in an embodiment of the present invention includes a workbench 1, a positioning plate 5 is disposed on the workbench 1 in a relatively slidable manner, a first clamping plate 501 is disposed on one side of the positioning plate 5 at two sides in a vertical direction in a relatively slidable manner, and a second clamping plate 502 is disposed in a horizontal direction in a relatively slidable manner, wherein the first clamping plate 501 and the second clamping plate 502 are respectively connected to a first adjusting mechanism for driving the first clamping plate to move; in an implementation manner of the embodiment of the present invention, when positioning and clamping a workpiece, first, two ends of the workpiece are placed between a first clamping plate 501 and a second clamping plate 502, and then the first clamping plate 501 and the second clamping plate 502 are driven to approach each other by a first adjusting mechanism, so that the first clamping plate 501 and the second clamping plate 502 are respectively contacted with each side of the workpiece, and further, the workpiece is clamped and fixed by the first clamping plate 501 and the second clamping plate 502;

the positioning device further comprises a second adjusting mechanism, the second adjusting mechanism is connected with the positioning plates 5, and the second adjusting mechanism is used for driving the positioning plates 5 on the two sides to slide on the workbench 1, so that the position of the positioning plates 5 on the workbench 1 is adjusted, and the two ends of a workpiece are just positioned between the first clamping plate 501 and the second clamping plate 502, so that the two ends of the workpiece are positioned and fixed by the first clamping plate 501 and the second clamping plate 502;

as a further solution of the embodiment of the present invention, the positioning plate 5 is provided with a plurality of sets of vertical sliding grooves 503, wherein the first clamping plate 501 is slidably connected to the sliding groove 503 provided along the horizontal direction, and the second clamping plate 502 is slidably connected to the sliding groove 503 provided along the vertical direction; it should be noted that in the process of driving the first clamping plate 501 and the second clamping plate 502 to move toward the workpiece to be processed, the first clamping plate 501 is transferred along the sliding groove 503 formed in the vertical direction, and the second clamping plate 502 is transferred along the sliding groove 503 formed in the horizontal direction, so as to clamp and fix the workpiece;

in addition, referring to fig. 3, the first adjusting mechanism includes a plurality of sets of movable plates 403 slidably disposed on one side of the positioning plate 5, and the movable plates 403 are respectively and fixedly connected to the first clamping plate 501 and the second clamping plate 502 through connecting rods passing through the sliding slots 503; in practical application, during the process of driving the movable plate 403 to move, the first clamping plate 501 and the second clamping plate 502 can be synchronously driven to move through the connecting rod;

the first adjusting mechanism further comprises a rotating disc 4 rotatably arranged on one side of the positioning plate 5, a plurality of groups of arc-shaped grooves 401 are circumferentially arranged on the rotating disc 4 in an array manner, the arc-shaped grooves 401 extend from the end close to the center of a circle to the direction far from the center of a circle on the rotating disc 4, pin shafts 402 fixedly connected with the movable plate 403 are movably embedded in the arc-shaped grooves 401, and the rotating discs 4 on the two sides are respectively connected with a rotating mechanism for driving the rotating discs to rotate; it can be described that the rotating mechanism drives the rotating disc 4 to rotate, the rotating disc 4 enables the pin 402 to slide in the arc-shaped groove 401 in the rotating process, and the pin 402 synchronously drives the movable plate 403 to move in the sliding process, so as to realize the position adjustment of the movable plate 403;

referring to fig. 4, an L-shaped support plate 3 is arranged on the workbench 1 in a relatively sliding manner, one end of the turntable 4 is rotatably connected with the positioning plate 5, and the other end of the turntable is rotatably connected with the L-shaped support plate 3;

it should be noted that the rotating mechanism comprises a first motor 404 arranged outside the L-shaped support plate 3 on one side, an output end of the first motor 404 is fixedly connected with the turntable 4, wherein a cylinder 6 is arranged at the side end of the L-shaped support plate 3 on one side in a rotating manner, a limiting rod 601 is arranged in the cylinder 6 in an inserting manner, the tail end of the limiting rod 601 is connected with the L-shaped support plate 3 on the other side in a rotating manner, the cylinder 6 and the limiting rod 601 are both connected with the turntable 4 through a belt 603 and a belt pulley in a transmission manner, a plurality of groups of limiting clamping grooves are arranged on the inner end surface of the cylinder 6, and limiting clamping seats 602 corresponding to the limiting clamping grooves one to one are correspondingly arranged on the limiting rod 601;

it should be noted that, when the driving turntable 4 rotates, the first motor 404 drives the turntable 4 on one side to rotate, the turntable 4 on one side drives the drum 6 to rotate through the belt 603 and the belt pulley in the rotating process, and the drum 6 drives the belt 603 on the other side and the belt pulley to transmit through the cooperation of the limiting clamping groove on the drum 6 and the limiting clamping seat 602 on the limiting rod 601 in the rotating process, so as to realize the synchronous angle adjustment of the turntable 4 on the other side;

referring to fig. 5, a plurality of sets of telescopic sleeves 405 are circumferentially arranged in an array on the turntable 4 in a direction toward the positioning plate 5, the ends of the telescopic sleeves 405 are fixedly connected with the movable plate 403, and the telescopic sleeves 405 are provided with return springs 406; it can be stated that, in the process of driving the turntable 4 to rotate, when the pin 402 is transferred towards the near-center end of the turntable 4 in the arc-shaped groove 401, the movable plate 403 compresses the telescopic sleeve 405 to contract, and synchronously, the return spring 406 contracts to generate elastic force, and when the pin 402 is transferred towards the far-center end of the turntable 4 in the arc-shaped groove 401, the return spring 406 drives the movable plate 403 to reset under the action of the elastic force.

Example 2

On the basis of the embodiment 1, the second adjusting mechanism comprises a driving box body 2 arranged on the workbench 1, a screw 201 is arranged in the driving box body 2 in a rotating manner, the screw 201 is fixedly connected with an output end of a second motor 202 arranged on the outer side of the driving box body 2, the thread directions of two sides of the screw 201 are opposite, and a nut 203 fixedly connected with the L-shaped support plate 3 is sleeved on the screw 201 in a relative spiral manner; when the position of the positioning plate 5 is adjusted, the second motor 202 is started to drive the screw 201 to rotate, and the L-shaped support plate 3 is synchronously driven to move in the process that the nut 203 moves on the screw 201, so that the position adjustment is realized;

in addition, a guide groove 101 is formed in the workbench 1, and a guide seat 301 fixedly connected with the L-shaped support plate 3 is arranged in the guide groove 101 in a sliding manner; specifically, in the present embodiment, during the process of driving the L-shaped support plate 3 to transfer, the L-shaped support plate 3 synchronously drives the guide seat 301 to slide in the guide groove 101, so as to improve the stability of the L-shaped support plate 3 during the transfer process.

The working principle of the workpiece positioning and clamping equipment provided by the invention is as follows: firstly, two ends of a workpiece are placed between a first clamping plate 501 and a second clamping plate 502, a first motor 404 drives a first side rotary table 4 to rotate, the first side rotary table 4 drives a barrel 6 to rotate through a belt 603 and a belt pulley in the rotating process, the barrel 6 drives a second side belt 603 and a belt pulley to drive through a limiting clamping groove in the barrel 6 and a limiting clamping seat 602 on a limiting rod 601 in a matching manner in the rotating process, further synchronous angle adjustment of the other side rotary table 4 is achieved, a pin shaft 402 slides in an arc-shaped groove 401 in the rotating process of the rotary table 4, the pin shaft 402 synchronously drives a movable plate 403 to move in the sliding process, position adjustment of the movable plate 403 is achieved, in the moving process of the movable plate 403, the first clamping plate 501 and the second clamping plate 502 can be synchronously driven to move through a connecting rod, the first clamping plate 501 and the second clamping plate 502 are driven to approach each other, the first clamping plate 501 and the second clamping plate 502 are respectively contacted with each side surface of the workpiece, and further clamping and fixing of the workpiece is achieved through the first clamping plate 501 and the second clamping plate 502.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation and a specific orientation configuration and operation, and thus, should not be construed as limiting the present invention. Furthermore, "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.

Although one embodiment of the present invention has been described in detail, the description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the scope of the invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.

Claims

1. A workpiece positioning and clamping device comprises a workbench (1), and is characterized in that positioning plates (5) are arranged on the workbench (1) in a relatively slidable manner, a first clamping plate (501) is arranged on one side, close to the positioning plates (5) on two sides, of the workbench in a relatively slidable manner along the vertical direction, and a second clamping plate (502) is arranged in a relatively slidable manner along the horizontal direction, wherein the first clamping plate (501) and the second clamping plate (502) are respectively connected with a first adjusting mechanism for driving the workbench to move;

the automatic positioning device is characterized by further comprising a second adjusting mechanism, the second adjusting mechanism is connected with the positioning plates (5), and the second adjusting mechanism is used for driving the positioning plates (5) on the two sides to slide on the workbench (1).

2. The workpiece positioning and clamping device as recited in claim 1, characterized in that the positioning plate (5) is provided with a plurality of sets of vertical sliding grooves (503), wherein the first clamping plate (501) is slidably connected with the sliding grooves (503) arranged along the horizontal direction, and the second clamping plate (502) is slidably connected with the sliding grooves (503) arranged along the vertical direction.

3. The workpiece positioning and clamping device as recited in claim 2, characterized in that the first adjusting mechanism comprises a plurality of sets of movable plates (403) slidably disposed on one side of the positioning plate (5), the movable plates (403) are respectively fixedly connected with the first clamping plate (501) and the second clamping plate (502) through connecting rods passing through the sliding slots (503).

4. The workpiece positioning and clamping device as claimed in claim 3, wherein the first adjusting mechanism further comprises a rotary table (4) rotatably arranged on one side of the positioning plate (5), a plurality of groups of arc-shaped grooves (401) are circumferentially arranged on the rotary table (4) in an array manner, the arc-shaped grooves (401) extend from the end close to the center of a circle to the end far from the center of a circle on the rotary table (4), pin shafts (402) fixedly connected with the movable plate (403) are movably embedded in the arc-shaped grooves (401), and the rotary tables (4) on the two sides are respectively connected with a rotating mechanism for driving the rotary tables to rotate.

5. A workpiece positioning and clamping device as claimed in claim 4, characterized in that the workbench (1) is provided with an L-shaped support plate (3) in a relatively sliding manner, one end of the rotary table (4) is rotatably connected with the positioning plate (5), and the other end of the rotary table is rotatably connected with the L-shaped support plate (3).

6. The workpiece positioning and clamping device as claimed in claim 5, wherein the rotating mechanism comprises a first motor (404) arranged outside the L-shaped support plate (3) on one side, the output end of the first motor (404) is fixedly connected with the turntable (4), a barrel (6) is arranged at the side end of the L-shaped support plate (3) on one side in a rotating manner, a limiting rod (601) is arranged in the barrel (6) in an inserting manner, the tail end of the limiting rod (601) is rotatably connected with the L-shaped support plate (3) on the other side, the barrel (6) and the limiting rod (601) are both in transmission connection with the turntable (4) through a belt (603) and a belt pulley, a plurality of groups of limiting clamping grooves are formed in the inner end surface of the barrel (6), and limiting clamping seats (602) corresponding to the limiting clamping grooves are correspondingly arranged on the limiting rod (601).

7. A workpiece positioning and clamping device as in claim 5, characterized in that the turntable (4) is provided with a plurality of sets of telescopic sleeves (405) in a circumferential array in the direction of the positioning plate (5), the tail ends of the telescopic sleeves (405) are fixedly connected with the movable plate (403), and the telescopic sleeves (405) are provided with return springs (406).

8. The workpiece positioning and clamping device as claimed in claim 6, wherein the second adjusting mechanism comprises a driving box body (2) arranged on the workbench (1), a screw (201) is arranged in the driving box body (2) in a rotating manner, the screw (201) is fixedly connected with an output end of a second motor (202) arranged on the outer side of the driving box body (2), the screw thread directions of two sides of the screw (201) are opposite, and a nut (203) fixedly connected with the L-shaped support plate (3) is sleeved on the screw (201) opposite to the screw.

9. The workpiece positioning and clamping device as recited in claim 8, characterized in that the worktable (1) is provided with a guide groove (101), and a guide seat (301) fixedly connected with the L-shaped support plate (3) is slidably arranged in the guide groove (101).