CN219703548U - Mechanical part clamping tool - Google Patents

Abstract

The utility model provides a mechanical part clamping tool which comprises a three-jaw chuck, wherein three movable grooves are uniformly formed in the top of the three-jaw chuck, movable blocks are arranged in the three movable grooves, mounting seats are connected to the tops of the movable blocks, sliding grooves are formed in the surfaces of one sides of the mounting seats, which are close to the centers of the three-jaw chuck, sliding blocks are arranged in the sliding grooves, one ends of the sliding blocks penetrate out of the surfaces of one sides of the mounting seats, which are close to the centers of the three-jaw chuck, first clamping jaws are connected to one ends of the penetrating ends of the sliding blocks, penetrating limiting grooves are formed in the tops of the sliding blocks, racks are arranged on the inner walls of one sides of the limiting grooves, moving grooves are formed in one sides of the tops of the mounting seats, lifting rods are arranged in the moving grooves and penetrate through the inner sides of the limiting grooves, and gears are arranged on the surfaces of the lifting rods; the utility model can accelerate the replacement of parts and improve the processing efficiency.

Description

Mechanical part clamping tool

Technical Field

The utility model belongs to the technical field of machining, and particularly relates to a mechanical part clamping tool.

Background

When the mechanical parts are processed such as milling and drilling, the parts are required to be clamped and fixed, so that the shaking or jumping of the parts during the processing process is avoided.

The three-jaw chuck is a common clamping tool, have disclosed a machining clamping tool in patent CN202121213143.2, including the three-jaw chuck, the outer end of every jack catch of three-jaw chuck all is provided with the stand, the stand is close to offer the spout on the side of jack catch inner, sliding joint has the lifter in the spout, the slip direction of lifter with the axis of three-jaw chuck is parallel, the spout internal rotation is connected with the threaded rod, the axis of threaded rod with the axis of three-jaw chuck is parallel, the threaded rod with lifter threaded connection, this clamping tool is in the location some thinner frock makes there be good fixed effect, but this frock is when using, because each dismouting once part all need rotate each threaded rod and makes the lifter, and three-jaw chuck needs to make each jack catch remove simultaneously and just can take out the part until the lifter removes from the part top completely, leads to the time of changing the part at every time longer, influences the change efficiency of part.

In summary, the present utility model provides a machine part clamping tool to solve the above-mentioned problems.

Disclosure of Invention

In order to solve the technical problems, the utility model provides a mechanical part clamping tool which aims to solve the problems that in the prior art, the moving stroke of a clamping jaw is long and the part replacement efficiency is affected.

The utility model provides a mechanical part centre gripping frock, includes the three-jaw chuck, three movable groove has evenly been seted up at the top of three-jaw chuck, and is three the movable block is all installed to the inside in movable groove, the top of movable block all is connected with the mount pad, the spout has all been seted up to the mount pad one side surface that is close to three-jaw chuck center, the slider is all installed to the inside of spout, one end of slider wears out from the mount pad one side surface that is close to three-jaw chuck center, and wears out the one end and be connected with first clamping jaw, the spacing groove that runs through has been seted up at the top of slider, be provided with the rack on one side inner wall of spacing groove, the movable groove has been seted up to one side that the mount pad top is close to first clamping jaw, the internally mounted in movable groove has the lifter, just the lifter passes from the inboard in spacing groove, the surface of lifter is provided with the gear, just the meshing links to each other between gear and the rack, the top of lifter wears out from the top side of mount pad, and the one end that wears out is connected with the second clamping jaw.

Further, two guide grooves are symmetrically formed in the inner wall of the movable groove, two guide posts are symmetrically arranged on the surface of the lifting rod, the guide posts are matched with the guide grooves in size, and the two guide posts penetrate into the two guide grooves respectively.

Further, the height of one end of the guide groove is larger than that of the other end of the guide groove, and the included angle between the two ends of the guide groove and the axis of the lifting rod is 90 degrees.

Further, a spring mounting groove is formed in the inner wall of one side, far away from the first clamping jaw, of the inner portion of the sliding groove, a spring is mounted in the spring mounting groove, one end of the spring penetrates into the sliding groove, and two ends of the spring respectively abut against the inner wall, far away from the sliding block, of the spring mounting groove and one side, far away from the first clamping jaw, of the sliding block.

Further, four corners of one side of the first clamping jaw, which is close to the mounting seat, are respectively provided with a guide rod, and four guide rods are respectively connected with the mounting seat in a sliding manner.

The second clamping jaw is connected with the lifting rod through a bolt.

Compared with the prior art, the utility model has the following beneficial effects:

according to the utility model, the guide post and the guide groove are arranged, when the part is disassembled, the rack on the inner side of the limit groove on the sliding block is extruded by the spring to drive the lifting rod to rotate, when the lifting rod rotates, the second clamping jaw is lifted upwards by the guide groove and the guide post, and meanwhile, when the lifting rod rotates, the second clamping jaw can rotate, so that the second clamping jaw is separated from the top of the part, the travel required by the installation seat to move is greatly reduced, and the efficiency of replacing the part is improved.

Drawings

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a schematic perspective view of the mounting base of the present utility model;

FIG. 3 is a schematic plan cross-sectional view of a mount of the present utility model;

fig. 4 is an exploded view of the mount of the present utility model.

In the figure:

1. a three-jaw chuck; 2. a movable groove; 3. a movable block; 4. a mounting base; 5. a chute; 6. a slide block; 7. a first jaw; 8. a limit groove; 9. a rack; 10. a moving groove; 11. a lifting rod; 12. a gear; 13. a second jaw; 14. a guide groove; 15. a guide post; 16. a spring mounting groove; 17. a spring; 18. a guide rod.

Detailed Description

Embodiments of the present utility model are described in further detail below with reference to the accompanying drawings and examples. The following examples are illustrative of the utility model but are not intended to limit the scope of the utility model.

As shown in fig. 1-4, the utility model provides a mechanical part clamping tool, which comprises a three-jaw chuck 1, three movable grooves 2 are uniformly formed in the top of the three-jaw chuck 1, movable blocks 3 are respectively installed in the three movable grooves 2, mounting seats 4 are respectively connected to the tops of the movable blocks 3, sliding grooves 5 are respectively formed in the surfaces of one sides of the mounting seats 4, which are close to the centers of the three-jaw chuck 1, sliding blocks 6 are respectively installed in the sliding grooves 5, one ends of the sliding blocks 6 penetrate out of the surfaces of one sides of the mounting seats 4, which are close to the centers of the three-jaw chuck 1, and one ends of the penetrating out of the sliding blocks are connected with first clamping jaws 7, penetrating limiting grooves 8 are formed in the tops of the sliding blocks 6, racks 9 are arranged on the inner walls of one sides of the limiting grooves 8, moving grooves 10 are respectively formed in one sides of the tops of the mounting seats 4, lifting rods 11 penetrate through the inner sides of the limiting grooves 8, gears 12 are respectively arranged on the surfaces of the lifting rods 11, and the gears 12 are connected with the gears 9, and the penetrating out of the lifting rods 11 are meshed with one ends of the first clamping jaws 4.

Wherein, two guide slots 14 are symmetrically arranged on the inner wall of the moving slot 10, two guide posts 15 are symmetrically arranged on the surface of the lifting rod 11, the size of each guide post 15 is matched with that of each guide slot 14, and the two guide posts 15 respectively penetrate into the two guide slots 14 to move in the guide slots 14 when the lifting rod 11 rotates.

Wherein, the one end height of guide way 14 is greater than the height of its other end, just the horizontal angle between guide way 14 both ends and lifter 11 axis is 90, makes when carrying out the centre gripping to the part, through guide post 15 removal in guide way 14, make the second clamp when carrying out the centre gripping to the part downwards, by rotating to parallel with mount pad 4 perpendicularly with second mount pad 4, make the other end of second clamping jaw 13 rotate to the top of part, simultaneously when taking off the part, second clamping jaw 13 upwards moves and loosens the centre gripping to the part, simultaneously by rotating to perpendicular with second mount pad 4 parallel with mount pad 4 to make its other end leave from the part top.

The inner wall of one side of the sliding groove 5 far away from the first clamping jaw 7 is provided with a spring mounting groove 16, a spring 17 is mounted in the spring mounting groove 16, one end of the spring 17 penetrates into the sliding groove 5, two ends of the spring 17 respectively abut against the inner wall of one side of the spring mounting groove 16 far away from the sliding block 6 and one side of the sliding block 6 far away from the first clamping jaw 7, and the sliding block 6 is pushed by the spring 17 to move outwards of the sliding groove 5.

Wherein, the four corners that first clamping jaw 7 is close to mount pad 4 one side all is equipped with guide bar 18, and four guide bar 18 all links to each other with the slide between the mount pad 4, is convenient for improve the stability when slider 6 removes.

The specific working principle is as follows:

when the three-jaw chuck is used, firstly, a mechanical part to be clamped is placed at the center of the three-jaw chuck 1, then the movable block 3 drives the three mounting seats 4 to approach the center of the three-jaw chuck 1 through the three-jaw chuck 1, in the approaching process, firstly, the first clamping jaw 7 contacts with the mechanical part to clamp the mechanical part in a lateral direction, meanwhile, the first clamping drives the sliding block 6 to move towards the inside of the sliding groove 5 when the first clamping jaw 7 contacts with the part, the lifting rod 11 is rotated through the rack 9 in the limiting groove 8 on the sliding groove 5, one end of the second clamping jaw 13 is rotated to the top of the part, meanwhile, the lifting rod 11 is moved downwards under the action of the guide post 15 and the guide groove 14, so that the part is clamped from the top, after the part is machined, the mounting seats 4 are far away from the part through the three-jaw chuck 1, in the process that the first clamping jaw 7 is far away from the part, the sliding block 6 moves outwards of the sliding groove 5 when the spring 17 is pressed, meanwhile, the lifting rod 11 rotates in the opposite direction to the clamping direction when the sliding block is pressed under the action of the rack 9, so that the lifting rod 11 rotates to rotate to the clamping part, and the clamping jaw 13 is further required to be clamped from the top by the part through the clamping jaw 13 when the clamping jaw 13 is further, and the part is moved upwards under the action of the guide post, and the clamping jaw 13 is further, and the part is moved upwards when the part is required to be clamped.

The embodiments of the present utility model have been shown and described for the purpose of illustration and description, it being understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made therein by one of ordinary skill in the art without departing from the scope of the utility model.

Claims (6)

1. The utility model provides a mechanical part centre gripping frock, includes three jaw chuck (1), three movable groove (2) have evenly been seted up at the top of three jaw chuck (1), and is three movable block (3) are all installed in the inside in movable groove (2), its characterized in that: the top of movable block (3) all is connected with mount pad (4), mount pad (4) are close to one side surface at three-jaw chuck (1) center and all have seted up spout (5), slider (6) are all installed to the inside of spout (5), one end of slider (6) is worn out from one side surface that mount pad (4) are close to three-jaw chuck (1) center, and wears out one end and be connected with first clamping jaw (7), spacing groove (8) that run through have been seted up at the top of slider (6), be provided with rack (9) on one side inner wall of spacing groove (8), remove groove (10) have been seted up to one side that is close to first clamping jaw (7) at mount pad (4) top, the internally mounted of removal groove (10) has lifter (11), just lifter (11) pass from the inboard of spacing groove (8), the surface of lifter (11) is provided with gear (12), just mesh between gear (12) and rack (9), the top of lifter (11) is worn out from the side of the top of mount pad (4) and is worn out by the second clamping jaw (13).

2. The machine part clamping fixture according to claim 1, wherein: two guide grooves (14) are symmetrically formed in the inner wall of the movable groove (10), two guide posts (15) are symmetrically arranged on the surface of the lifting rod (11), the guide posts (15) are matched with the guide grooves (14) in size, and the two guide posts (15) penetrate into the two guide grooves (14) respectively.

3. The machine part clamping fixture according to claim 2, wherein: the height of one end of the guide groove (14) is larger than that of the other end of the guide groove, and the included angle between the two ends of the guide groove (14) and the axis of the lifting rod (11) is 90 degrees.

4. The machine part clamping fixture according to claim 1, wherein: the spring mounting groove (16) has been seted up on the inside one side inner wall that first clamping jaw (7) was kept away from to spout (5), the internally mounted of spring mounting groove (16) has spring (17), in one end of spring (17) penetrated spout (5), just the both ends of spring (17) offset with the inner wall that slider (6) one side was kept away from to spring mounting groove (16) and one side that first clamping jaw (7) was kept away from to slider (6) respectively.

5. The machine part clamping fixture according to claim 1, wherein: four corners of one side of the first clamping jaw (7) close to the mounting seat (4) are respectively provided with a guide rod (18), and four guide rods (18) are respectively connected with the mounting seat (4) in a sliding manner.

6. The machine part clamping fixture according to claim 1, wherein: the second clamping jaw (13) is connected with the lifting rod (11) through bolts.