CN215918990U - Cold heading machine anchor clamps with safeguard function - Google Patents

Abstract

The utility model discloses a cold header clamp with a protection function, which comprises a workbench, a base and a threaded sleeve, wherein buffer grooves are formed in two ends of the top of the base, and connecting rods are arranged in the buffer grooves. According to the die holder, the positioning mechanism, the positioning pin, the positioning spring, the positioning rod, the guide rod, the positioning plate and the positioning groove are arranged, so that the positioning rod is pulled to drive the positioning pin to move, the positioning pin drives the positioning spring to stretch and retract, the positioning pin is pushed to be connected with the positioning groove under the action of the positioning spring, the positioning pins on the two sides are used for simultaneously pressing and fixing the die holder to achieve the pre-positioning effect on the die holder, the die holder is ensured to be located at the central position of the workbench, the die holder cannot deviate in the front and back direction through the clamping of the positioning pin and the positioning groove, the guide rods on the two sides are used for achieving the guiding and limiting effects in the moving process of the positioning rod, and the stability of the positioning rod in moving is improved.

Description

Cold heading machine anchor clamps with safeguard function

Technical Field

The utility model relates to the technical field of cold headers, in particular to a cold header clamp with a protection function.

Background

In the present society, with the continuous progress of production technology, cold heading technology is developed vigorously, cold headers are widely applied in more and more industries, and the cold headers are special equipment which takes piers as main parts and is specially used for producing fasteners such as nuts and bolts in batches, and the cold headers are products for upsetting steel billets into a certain shape at normal temperature;

the traditional mould that is used for cold heading machine forging and pressing is mostly with the welding setting of lathe as an organic whole, and inconvenient according to the work piece model of waiting to forge and press adjusting the die holder, improved manufacturing cost.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a cold header clamp with a protection function, and aims to solve the problems that a lower die holder is inconvenient to adjust according to the type of a workpiece to be forged and the production cost is high in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: a cold header clamp with a protection function comprises a workbench, a base and a thread bushing, wherein buffer grooves are formed in two ends of the top of the base, connecting rods are arranged in the buffer grooves, movable blocks are uniformly sleeved on the outer sides of the connecting rods, adjusting rods are hinged to the top ends of the movable blocks, and the workbench is arranged between the top ends of the adjusting rods;

the top end of the workbench is provided with a lower die base, positioning grooves are formed in two sides of the lower die base, an accommodating groove is formed in the workbench, a positive and negative threaded screw rod is arranged in the accommodating groove, and a threaded sleeve is uniformly sleeved on the outer side of the positive and negative threaded screw rod;

splint are all installed on the top of thread bush, the handle is installed to the one end of workstation.

Preferably, the top of workstation evenly is provided with prepressing mechanism, prepressing mechanism includes the bottom plate, and the bottom plate all installs four corners on the workstation top, the telescopic link is all installed on the top of bottom plate, and the top of telescopic link all installs the roof, the outside of telescopic link all is equipped with prepressing spring, and prepressing spring's top all with roof fixed connection, prepressing spring's bottom all with bottom plate fixed connection.

Preferably, the both sides on workstation top all are provided with positioning mechanism, positioning mechanism includes the locating plate, and the locating plate all installs the both sides on workstation top, the equal movable mounting in the inside intermediate position department of locating plate has the locating lever, and the locating lever is close to one side of die holder and all installs the locating pin, the locating pin all with constant head tank swing joint, the outside of locating lever all overlaps and is equipped with positioning spring, and positioning spring's one end all with locating pin fixed connection, positioning spring's the other end all with locating plate fixed connection, the guide bar is all installed at the both ends that die holder one side was kept away from to the locating pin.

Preferably, four corners on the top of the base are all provided with buffer mechanisms, each buffer mechanism comprises a movable groove, the movable grooves are all arranged at the top end inside the base, buffer rods are movably arranged inside the movable grooves, first buffer springs are arranged inside the movable grooves at the bottoms of the buffer rods, the bottoms of the first buffer springs are fixedly connected with the inner walls of the movable grooves, the tops of the buffer rods are fixedly connected with the bottom of the workbench, and second buffer springs are sleeved on the outer sides of the buffer rods.

Preferably, the diameter of buffer lever bottom all equals with first buffer spring's external diameter size, and buffer lever and first buffer spring all constitute extending structure.

Preferably, the section of guide bar all is "T" type design, and the guide bar all sets up about the axis symmetry of locating lever.

Preferably, both sides of the connecting rod are sleeved with second return springs, and the middle position of the connecting rod is sleeved with a first return spring.

Compared with the prior art, the utility model has the beneficial effects that: the cold header clamp with the protection function not only realizes the function of convenient adjustment and positioning, but also realizes the function of buffer protection and the function of prepressing;

(1) by installing the positioning mechanism, the positioning pin, the positioning spring, the positioning rod, the guide rod, the positioning plate and the positioning groove, the positioning rod drives the positioning pin to move by pulling the positioning rod, the positioning pin drives the positioning spring to stretch so as to push the positioning pin to be connected with the positioning groove by the action of the positioning spring, thereby simultaneously pressing and fixing the lower die base by the positioning pins at two sides to play a role in pre-positioning the lower die base, ensuring that the lower die base is positioned at the central position of the workbench, and ensuring that the lower die base cannot deviate in the front and back direction by the clamping of the positioning pin and the positioning groove, in the moving process of the positioning rod, the guide rod at two sides plays a role in guiding and limiting, the stability of the positioning rod in moving is improved, and simultaneously, after the primary positioning is finished, the handle is rotated to drive the positive and negative screw rods to rotate, the positive and negative screw rods drive the clamping plates at the two ends to move in the same direction or in the opposite direction under the action of the threaded sleeves, so that the lower die holder is further clamped and limited, the stability of the lower die holder in use is improved, and the lower die holder is suitable for the lower die holders of different sizes and models, and is convenient and fast to assemble and disassemble;

(2) by installing the buffer mechanism, the buffer rod, the first buffer spring, the second buffer spring, the movable groove, the movable block, the first reset spring, the connecting rod, the second reset spring and the adjusting rod, in the processing process, the workbench is stressed to press down and drive the adjusting rod and the movable block to extend outwards, the movable block keeps the stability of the movable block through the opposite supporting action between the first reset spring and the second reset spring, the damage to the workbench is reduced, and meanwhile, the impact force on the workbench is further relieved through the movement of the buffer rod in the movable groove and the elastic action between the first buffer spring and the second buffer spring, the protection effect on the workbench and working elements of the workbench is improved, and the service life of the workbench is prolonged;

(3) through installing prepressing mechanism, the pre-compaction spring, the telescopic link, bottom plate and roof, make before cold heading machine carries out forging and pressing operation, the roof at first with the last pre-compaction groove contact of matching of cold heading machine, and drive the roof when roof and the mutual block in pre-compaction groove and push down, the roof drives telescopic link and pre-compaction spring and stretches out and draws back, so that the pre-compaction matching through workstation top four places is successful to ensure the precision of adding man-hour, improve machining efficiency and product quality.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic front sectional view of the present invention;

FIG. 2 is a side view of a cross-sectional structure of the worktable of the present invention;

FIG. 3 is a schematic front sectional view of a buffering mechanism according to the present invention;

FIG. 4 is a schematic front sectional view of the positioning mechanism of the present invention;

FIG. 5 is a schematic view of a cross-sectional front view of the base of the present invention;

FIG. 6 is a side view of the base of the present invention;

fig. 7 is a schematic front view of the present invention.

The reference numerals in the figures illustrate: 1. a work table; 2. a buffer mechanism; 201. a buffer rod; 202. a movable groove; 203. a first buffer spring; 204. a second buffer spring; 3. a base; 4. a pre-pressing mechanism; 401. pre-pressing a spring; 402. a telescopic rod; 403. a base plate; 404. a top plate; 5. a positioning mechanism; 501. positioning pins; 502. a positioning spring; 503. positioning a rod; 504. a guide bar; 505. positioning a plate; 6. a lower die holder; 7. a handle; 8. accommodating grooves; 9. a threaded sleeve; 10. a positive and negative thread screw; 11. a splint; 12. positioning a groove; 13. a buffer tank; 14. a movable block; 15. a first return spring; 16. a connecting rod; 17. a second return spring; 18. and adjusting the rod.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without any inventive step, are within the scope of the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-7, an embodiment of the present invention is shown: a cold header clamp with a protection function comprises a workbench 1, a base 3 and a thread bush 9;

four corners of the top end of the base 3 are respectively provided with a buffer mechanism 2, each buffer mechanism 2 comprises a movable groove 202, the movable grooves 202 are respectively arranged at the top end inside the base 3, buffer rods 201 are movably arranged inside the movable grooves 202, first buffer springs 203 are respectively arranged inside the movable grooves 202 at the bottom ends of the buffer rods 201, the bottom ends of the first buffer springs 203 are respectively and fixedly connected with the inner wall of each movable groove 202, the top ends of the buffer rods 201 are respectively and fixedly connected with the bottom end of the workbench 1, and second buffer springs 204 are respectively sleeved outside the buffer rods 201;

specifically, as shown in fig. 1 and 3, when in use, the buffer rod 201 moves in the movable groove 202 and the elastic action between the first buffer spring 203 and the second buffer spring 204 is used to further reduce the impact force applied to the workbench 1, improve the protection effect on the workbench 1 and the working elements thereof, and prolong the service life thereof;

the diameter of the bottom end of the buffer rod 201 is equal to the outer diameter of the first buffer spring 203, and the buffer rod 201 and the first buffer spring 203 form a telescopic structure;

specifically, as shown in fig. 1 and 3, when in use, the diameter of the bottom end of the buffer rod 201 is equal to the outer diameter of the first buffer spring 203, so as to further improve the stability of the buffer rod 201 during movement;

buffer grooves 13 are formed in two ends of the top of the base 3, and connecting rods 16 are mounted inside the buffer grooves 13;

a second return spring 17 is sleeved on each of two sides of the connecting rod 16, and a first return spring 15 is sleeved in the middle of the connecting rod 16;

specifically, as shown in fig. 1 and 5, when in use, the movable block 14 maintains its stability by the opposite supporting action between the first return spring 15 and the second return spring 17, so as to reduce the damage to the workbench 1;

the movable blocks 14 are uniformly sleeved on the outer sides of the connecting rods 16, adjusting rods 18 are hinged to the top ends of the movable blocks 14, and the workbench 1 is installed between the top ends of the adjusting rods 18;

the top end of the workbench 1 is uniformly provided with prepressing mechanisms 4, each prepressing mechanism 4 comprises a bottom plate 403, the bottom plates 403 are all arranged at four corners of the top end of the workbench 1, telescopic rods 402 are all arranged at the top ends of the bottom plates 403, top plates 404 are all arranged at the top ends of the telescopic rods 402, prepressing springs 401 are all sleeved on the outer sides of the telescopic rods 402, the top ends of the prepressing springs 401 are all fixedly connected with the top plates 404, and the bottom ends of the prepressing springs 401 are all fixedly connected with the bottom plates 403;

specifically, as shown in fig. 1 and 2, when the cold header is used, before the cold header performs forging operation, the top plate 404 is firstly contacted with the matched pre-pressing groove on the cold header, and the top plate 404 is driven to press down while the top plate 404 and the pre-pressing groove are mutually clamped, and the top plate 404 drives the telescopic rod 402 and the pre-pressing spring 401 to stretch, so that the accuracy during processing is ensured through successful pre-pressing matching at four positions of the top end of the workbench 1, and the processing efficiency and the product quality are improved;

the two sides of the top end of the workbench 1 are respectively provided with a positioning mechanism 5, each positioning mechanism 5 comprises a positioning plate 505, the positioning plates 505 are respectively arranged at the two sides of the top end of the workbench 1, a positioning rod 503 is movably arranged at the middle position inside the positioning plate 505, positioning pins 501 are respectively arranged at one side of each positioning rod 503 close to the lower die holder 6, the positioning pins 501 are respectively movably connected with positioning grooves 12, positioning springs 502 are respectively sleeved at the outer sides of the positioning rods 503, one ends of the positioning springs 502 are respectively fixedly connected with the positioning pins 501, the other ends of the positioning springs 502 are respectively fixedly connected with the positioning plates 505, and guide rods 504 are respectively arranged at the two ends of each positioning pin 501 far away from one side of the lower die holder 6;

specifically, as shown in fig. 1 and 4, when the positioning device is used, the positioning rod 503 is pulled, the positioning rod 503 drives the positioning pin 501 to move, the positioning pin 501 drives the positioning spring 502 to stretch, so that the positioning pin 501 is pushed to be connected with the positioning groove 12 through the action of the positioning spring 502, the positioning pins 501 on the two sides simultaneously press and fix the lower die holder 6 to play a role in pre-positioning the lower die holder 6, and the lower die holder 6 is ensured to be located at the central position of the workbench 1;

the cross sections of the guide rods 504 are all designed in a T shape, and the guide rods 504 are all symmetrically arranged around the central axis of the positioning rod 503;

specifically, as shown in fig. 1 and 4, when in use, the cross section of each guide rod 504 is designed in a "T" shape, and the guide rods 504 are symmetrically arranged about the central axis of the positioning rod 503, so that the guide rods 504 are prevented from falling off, and the guiding and positioning effects on the positioning rod 503 are improved;

the top end of the workbench 1 is provided with a lower die holder 6, positioning grooves 12 are formed in two sides of the lower die holder 6, an accommodating groove 8 is formed in the workbench 1, a positive and negative threaded screw rod 10 is arranged in the accommodating groove 8, and threaded sleeves 9 are uniformly sleeved on the outer sides of the positive and negative threaded screw rod 10;

the top end of the threaded sleeve 9 is provided with a clamping plate 11, and one end of the workbench 1 is provided with a handle 7.

The working principle is as follows: when the double-thread clamping device is used, firstly, the corresponding lower die holder 6 is selected according to the product style to be processed, the positioning rod 503 is pulled to place the lower die holder 6 on the workbench 1, the positioning rod 503 pushes the positioning pin 501 to be connected with the positioning groove 12 under the action of the positioning spring 502, so that the positioning pins 501 on two sides can simultaneously press the lower die holder 6 to play a role of pre-positioning, the lower die holder 6 is ensured to be positioned at the central position of the workbench 1, after the positioning is completed, the handle 7 is rotated to drive the positive and negative thread screw rod 10 to rotate, and the positive and negative thread screw rod 10 drives the clamping plates 11 at two ends to synchronously move under the action of the thread sleeve 9 to clamp the lower die holder 6;

secondly, before the cold header is forged and pressed, the top plate 404 is firstly contacted with a matched pre-pressing groove on the cold header, the top plate 404 is driven to press downwards while the top plate 404 and the pre-pressing groove are clamped with each other, the top plate 404 drives the telescopic rod 402 and the pre-pressing spring 401 to stretch and retract, so that the accuracy in processing is ensured through successful pre-pressing matching at four positions of the top end of the workbench 1, and the processing efficiency and the product quality are improved;

finally, in the course of working, workstation 1 atress pushes down and drives adjusting lever 18 and movable block 14 and outwards extend, movable block 14 keeps its stability through the supporting role in opposite directions between first reset spring 15 and the second reset spring 17, reduces the damage that workstation 1 received, simultaneously through the removal of buffer beam 201 in activity groove 202 and the elastic action between first buffer spring 203 and the second buffer spring 204, further slows down the impact force that workstation 1 received, prolongs its life.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims (7)

1. The utility model provides a cold heading machine anchor clamps with safeguard function, includes workstation (1), base (3) and thread bush (9), its characterized in that: buffer grooves (13) are formed in two ends of the top of the base (3), connecting rods (16) are arranged in the buffer grooves (13), movable blocks (14) are uniformly sleeved on the outer sides of the connecting rods (16), adjusting rods (18) are hinged to the top ends of the movable blocks (14), and a workbench (1) is arranged between the top ends of the adjusting rods (18);

the top end of the workbench (1) is provided with a die holder (6), positioning grooves (12) are formed in two sides of the die holder (6), an accommodating groove (8) is formed in the workbench (1), a positive and negative threaded rod (10) is arranged in the accommodating groove (8), and threaded sleeves (9) are uniformly sleeved on the outer sides of the positive and negative threaded rod (10);

splint (11) are all installed on the top of thread bush (9), handle (7) are installed to the one end of workstation (1).

2. The cold heading machine clamp with the protection function according to claim 1, wherein: the top of workstation (1) evenly is provided with prepressing mechanism (4), prepressing mechanism (4) includes bottom plate (403), and bottom plate (403) all install four corners on workstation (1) top, telescopic link (402) are all installed on the top of bottom plate (403), and the top of telescopic link (402) all installs roof (404), the outside of telescopic link (402) all overlaps and is equipped with pre-compaction spring (401), and the top of pre-compaction spring (401) all with roof (404) fixed connection, the bottom of pre-compaction spring (401) all with bottom plate (403) fixed connection.

3. The cold heading machine clamp with the protection function according to claim 1, wherein: the both sides on workstation (1) top all are provided with positioning mechanism (5), positioning mechanism (5) include locating plate (505), and locating plate (505) all installs the both sides on workstation (1) top, the equal movable mounting in intermediate position department of locating plate (505) inside has locating lever (503), and locating lever (503) are close to one side of die holder (6) and all install locating pin (501), locating pin (501) all with locating groove (12) swing joint, the outside of locating lever (503) all overlaps and is equipped with positioning spring (502), and the one end of positioning spring (502) all with locating pin (501) fixed connection, the other end of positioning spring (502) all with locating plate (505) fixed connection, guide bar (504) are all installed at the both ends that die holder (6) one side was kept away from in locating pin (501).

4. The cold heading machine clamp with the protection function according to claim 1, wherein: four corners on base (3) top all are provided with buffer gear (2), buffer gear (2) are including activity groove (202), and activity groove (202) all set up on the inside top of base (3), the equal movable mounting in inside of activity groove (202) has buffer beam (201), and the inside of the activity groove (202) of buffer beam (201) bottom all installs first buffer spring (203), the bottom of first buffer spring (203) all with the inner wall fixed connection of activity groove (202), the top of buffer beam (201) all with the bottom fixed connection of workstation (1), the outside of buffer beam (201) all overlaps and is equipped with second buffer spring (204).

5. The header clamp with protection function of claim 4, wherein: the diameter of buffer lever (201) bottom all equals with the external diameter size of first buffer spring (203), and buffer lever (201) and first buffer spring (203) all constitute extending structure.

6. The header clamp with protection function of claim 3, wherein: the section of each guide rod (504) is in a T-shaped design, and the guide rods (504) are symmetrically arranged relative to the central axis of the positioning rod (503).

7. The cold heading machine clamp with the protection function according to claim 1, wherein: the two sides of the connecting rod (16) are both sleeved with second return springs (17), and the middle position of the connecting rod (16) is sleeved with a first return spring (15).

Images