CN218170316U

CN218170316U - Automatic change mechanical fixture

Info

Publication number: CN218170316U
Application number: CN202221764868.5U
Authority: CN
Inventors: 李丽琼
Original assignee: Yunnan Vocational College Of Economics Trade And Foreign Affairs
Current assignee: Yunnan Vocational College Of Economics Trade And Foreign Affairs
Priority date: 2022-07-09
Filing date: 2022-07-09
Publication date: 2022-12-30
Anticipated expiration: 2032-07-09

Abstract

The utility model discloses an automatic change mechanical fixture relates to anchor clamps technical field, comprises a workbench, the equal fixedly connected with supporting leg in bottom four corners department of workstation, the top both sides department of workstation all is provided with the installation casing, the both sides inner wall of installation casing rotates and is connected with driving gear, first gear, second gear and third gear, driving gear, first gear and second gear mesh mutually, the second gear meshes with the third gear mutually, one side fixedly connected with positive reverse motor of installation casing, fixed connection between the output shaft of positive reverse motor and the driving gear, open at the top of installation casing has the spout, and the inner wall both ends department of spout all slides and set up the rack, two the rack meshes with first gear and third gear respectively, the tooth count of first gear and third gear is the same. The utility model discloses its advantage lies in being convenient for carry out the centre gripping to the work piece.

Description

Automatic change mechanical fixture

Technical Field

The utility model relates to an anchor clamps technical field especially relates to an automatic change mechanical fixture.

Background

The jig is a device for fixing a processing object to occupy a correct position for receiving construction or inspection in a machine manufacturing process, and is also called a jig. In a broad sense, any device used to quickly, conveniently and safely mount a workpiece at any stage in a process may be referred to as a jig.

At present, an existing automatic mechanical clamp generally comprises a telescopic mechanism and a clamping plate, and the telescopic mechanism drives the clamping plate to move so as to clamp a workpiece.

However, similar to the above automatic mechanical clamp, the telescopic mechanism is usually a threaded rod and a threaded hole, and when the automatic mechanical clamp is used, a worker is required to rotate the threaded rod, and the clamping plate is driven to move to clamp a workpiece in cooperation with the threaded hole, so that the automatic mechanical clamp is inconvenient to operate.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing an automatic mechanical clamp. Its advantage lies in being convenient for carry out the centre gripping to the work piece.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides an automatic change mechanical fixture, includes the workstation, the equal fixedly connected with supporting leg in bottom four corners department of workstation, the top both sides department of workstation all is provided with the installation casing, the both sides inner wall of installation casing rotates and is connected with driving gear, first gear, second gear and third gear, driving gear, first gear and second gear mesh mutually, the second gear meshes with the third gear mutually, one side fixedly connected with of installation casing is just reversing motor, fixed connection between the output shaft of just reversing motor and the driving gear, open at the top of installation casing has the spout, and the inner wall both ends department of spout all slides and sets up the rack, two the rack meshes with first gear and third gear respectively mutually, first gear is the same with the tooth number of third gear, the top fixedly connected with grip block of rack.

Through the technical scheme: when the workpiece is clamped, the two ends of the workpiece are placed between the clamping blocks respectively, then the forward and reverse rotating motor is started, the forward and reverse rotating motor drives the driving gear to rotate, so that the first gear is driven to rotate, meanwhile, the third gear and the first gear are driven to rotate in the same speed and reverse direction through the second gear, under the action of the rack, the two clamping blocks are driven to move in the opposite directions, and the two groups of clamping blocks respectively clamp the two ends of the workpiece, so that the purpose of clamping the workpiece conveniently is achieved.

The utility model discloses further set up to, the number of teeth of driving gear is less than the number of teeth of first gear.

Through the technical scheme: the number of teeth of the driving gear is smaller than that of the first gear, so that the first gear and the third gear rotate in a speed reduction mode, and damage to a workpiece due to the fact that the clamping speed of the clamping block is high is prevented.

The utility model discloses further set up to, lie in two with one side the equal fixedly connected with rubber pad of relative one side of grip block.

Through the technical scheme: the rubber pad is utilized to prevent the clamping block from clamping and damaging the workpiece.

The utility model discloses further set up to, open one side of rubber pad has a plurality of antiskid grooves.

Through the technical scheme: utilize anti-skidding groove, increase the frictional force between rubber pad and the work piece, increase the stability of work piece centre gripping.

The utility model discloses further set up to, the shifting chute has all been opened to the both sides both ends department of spout, and the inner wall of shifting chute slides and is provided with the movable block, movable block and rack fixed connection.

Through the technical scheme: the rack is prevented from being separated from the sliding groove by utilizing the movable groove and the movable block.

The utility model discloses further set up to, the equal fixedly connected with mounting panel in bottom both sides of workstation, the relative one side of two mounting panels is rotated and is connected with same two-way threaded rod, the outer wall both sides department of two-way threaded rod all is provided with the slider through thread slipping.

Through the technical scheme: the bidirectional threaded rod is utilized to rotate, and the sliding block is driven to move.

The utility model discloses further set up to, the top fixedly connected with stopper of slider, open at the top of workstation has spacing mouthful, the stopper slides and sets up in spacing mouthful, stopper and installation casing fixed connection.

Through the technical scheme: the slide block is prevented from rotating by the limiting action of the limiting block and the limiting port.

The utility model discloses further set up to, one of them one side of mounting panel is rotated and is connected with a roll over type crank, roll over type crank and two-way threaded rod fixed connection.

Through the technical scheme: the folding crank is used, so that the bidirectional threaded rod can be conveniently rotated.

The utility model has the advantages that:

1. this automatic change mechanical fixture, through being provided with the motor that just reverses, first gear, the second gear, third gear and driving gear, when carrying out the centre gripping to the work piece, place the both ends of work piece between the grip block respectively earlier, start the motor that just reverses afterwards, it is rotatory that just reverses the motor and drive the driving gear, and then it is rotatory to drive first gear, it is rotatory with first gear with fast antiport to drive the third gear through the second gear simultaneously, under the effect of rack, drive two grip block phase motion, two sets of grip blocks carry out the centre gripping to the both ends of work piece respectively, thereby reach and be convenient for carry out the purpose of centre gripping to the work piece.

2. This automatic change mechanical fixture through being provided with rubber pad and antiskid groove, through the rubber pad, prevents that the grip block from causing the centre gripping damage to the work piece, through antiskid groove, increases the frictional force between rubber pad and the work piece, increases the stability of work piece centre gripping.

3. This automatic change mechanical fixture through being provided with two-way threaded rod, slider and stopper, when carrying out the centre gripping to the work piece of different length, rotatable book type crank drives two-way threaded rod through a type crank and rotates, and then under the limiting displacement of stopper, drives two sliders and removes to reach the purpose of adjusting two sets of grip block positions, be convenient for carry out the centre gripping to the work piece of different length.

Drawings

Fig. 1 is a schematic diagram of an overall three-dimensional structure of an automated mechanical fixture according to the present invention;

fig. 2 is a schematic view of a three-dimensional structure of a bidirectional threaded rod and a slider of an automatic mechanical clamp according to the present invention;

fig. 3 is a schematic view of a partial side cross-sectional structure of an automated mechanical fixture rack and a clamping block according to the present invention;

fig. 4 is a schematic view of a partial top cross-sectional structure of the moving groove and the moving block of the automatic mechanical fixture according to the present invention.

In the figure: 1. a work table; 2. supporting legs; 3. installing a shell; 4. a limiting port; 5. a forward and reverse rotation motor; 6. a folding type crank; 7. a slider; 8. a bidirectional threaded rod; 9. a limiting block; 10. a driving gear; 11. a first gear; 12. a second gear; 13. a third gear; 14. a rack; 15. a clamping block; 16. a rubber pad; 17. an anti-slip groove; 18. a moving groove; 19. a moving block; 20. a chute; 21. and (7) mounting the plate.

Detailed Description

The technical solution of the present patent will be further described in detail with reference to the following embodiments.

Reference will now be made in detail to embodiments of the present patent, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present patent and are not to be construed as limiting the present patent.

In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of describing the patent and for the simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.

In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by one of ordinary skill in the art as appropriate.

Referring to fig. 1-4, an automatic mechanical fixture, including a workbench 1, the bottom four corners of the workbench 1 are all connected with support legs 2 through bolts, both sides of the top of the workbench 1 are provided with an installation housing 3, inner walls of both sides of the installation housing 3 are rotatably connected with a driving gear 10, a first gear 11, a second gear 12 and a third gear 13, the driving gear 10, the first gear 11 is engaged with the second gear 12, the second gear 12 is engaged with the third gear 13, one side of the installation housing 3 is connected with a forward and reverse motor 5 through bolts, an output shaft of the forward and reverse motor 5 is connected with the driving gear 10 through bolts, the top of the installation housing 3 is provided with a chute 20, both ends of the inner wall of the chute 20 are provided with racks 14 in a sliding manner, the two racks 14 are respectively engaged with the first gear 11 and the third gear 13, the number of teeth of the first gear 11 is the same as that of the third gear 13, and the top of the racks 14 is fixedly connected with a clamping block 15.

Specifically, the number of teeth of driving gear 10 is less than the number of teeth of first gear 11, and the number of teeth of driving gear 10 is less than the number of teeth of first gear 11 to make first gear 11 and third gear 13 rotation at a reduced speed, prevent that 15 clamping speed of grip block is very fast and cause the damage to the work piece.

Specifically, the opposite surfaces of the two clamping blocks 15 on the same side are connected with rubber pads 16 through bolts, and the rubber pads 16 are used for preventing the clamping blocks 15 from clamping and damaging the workpiece.

Specifically, one side of rubber pad 16 is opened has a plurality of antiskid grooves 17, utilizes antiskid groove 17, increases the frictional force between rubber pad 16 and the work piece, increases the stability of work piece centre gripping.

Specifically, moving grooves 18 are formed in two ends of each of two sides of the sliding groove 20, a moving block 19 is arranged on the inner wall of each moving groove 18 in a sliding mode, the moving blocks 19 are connected with the rack 14 through bolts, and the rack 14 is prevented from being separated from the sliding groove 20 through the moving grooves 18 and the moving blocks 19.

Specifically, the bottom both sides of workstation 1 all have mounting panel 21 through bolted connection, and the relative one side of two mounting panels 21 is rotated and is connected with same two-way threaded rod 8, and the outer wall both sides department of two-way threaded rod 8 all is provided with slider 7 through the screw thread slip, utilizes two-way threaded rod 8 to rotate, drives slider 7 and removes.

Specifically, there is stopper 9 at the top of slider 7 through bolted connection, and open at the top of workstation 1 has spacing mouthful 4, and stopper 9 slides and sets up in spacing mouthful 4, and stopper 9 passes through bolted connection with installation casing 3, utilizes stopper 9 and spacing mouthful 4 limiting displacement, prevents that slider 7 from rotating.

Specifically, one side of one of the mounting plates 21 is rotatably connected with a folding type crank 6, the folding type crank 6 is connected with the bidirectional threaded rod 8 through a bolt, and the folding type crank 6 is used for facilitating rotation of the bidirectional threaded rod 8.

The working principle is as follows: when clamping the workpiece, firstly, two ends of the workpiece are respectively placed between the clamping blocks 15, then the forward and reverse rotating motor 5 is started, the forward and reverse rotating motor 5 drives the driving gear 10 to rotate, so that the first gear 11 is driven to rotate, meanwhile, the third gear 13 and the first gear 11 are driven to rotate in the same speed and reverse direction through the second gear 12, under the action of the rack 14, the two clamping blocks 15 are driven to move in opposite directions, and the two groups of clamping blocks 15 respectively clamp two ends of the workpiece, so that the purpose of conveniently clamping the workpiece is achieved.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides an automatic change mechanical fixture, includes workstation (1), the equal fixedly connected with supporting leg (2) of bottom four corners department of workstation (1), its characterized in that, the top both sides department of workstation (1) all is provided with installation casing (3), the both sides inner wall of installation casing (3) rotates and is connected with driving gear (10), first gear (11), second gear (12) and third gear (13), driving gear (10), first gear (11) and second gear (12) mesh mutually, second gear (12) mesh with third gear (13) mutually, one side fixedly connected with of installation casing (3) is motor (5) just reversing, fixed connection between the output shaft of motor (5) just reversing and driving gear (10), open at the top of installation casing (3) has spout (20), and the inner wall both ends department of spout (20) all slides and sets up rack (14), two rack (14) mesh with first gear (11) and third gear (13) respectively, first gear (11) and third gear (13) are the same number of teeth (15) are connected with the centre gripping piece (15).

2. An automated mechanical gripper according to claim 1, characterized in that the number of teeth of the driving gear (10) is smaller than the number of teeth of the first gear (11).

3. An automated mechanical gripper according to claim 1, characterized in that two of said gripping blocks (15) located on the same side have rubber pads (16) fixedly attached to their opposite faces.

4. Automated mechanical gripper according to claim 3, characterized in that said rubber mat (16) is provided with a plurality of anti-slip grooves (17) on one side.

5. The automated mechanical clamp according to claim 4, wherein the sliding groove (18) is formed at two ends of the sliding groove (20), the inner wall of the sliding groove (18) is slidably provided with a moving block (19), and the moving block (19) is fixedly connected with the rack (14).

6. The automated mechanical clamp according to claim 1, wherein the bottom of the workbench (1) is fixedly connected with mounting plates (21) on both sides, the two mounting plates (21) are rotatably connected with the same two-way threaded rod (8) on opposite surfaces, and the sliding blocks (7) are slidably arranged on both sides of the outer wall of the two-way threaded rod (8) through threads.

7. The automatic mechanical clamp is characterized in that a limiting block (9) is fixedly connected to the top of the sliding block (7), a limiting opening (4) is formed in the top of the workbench (1), the limiting block (9) is arranged in the limiting opening (4) in a sliding mode, and the limiting block (9) is fixedly connected with the mounting shell (3).

8. An automated mechanical gripper according to claim 7, characterized in that one side of one of said mounting plates (21) is rotatably connected with a folding crank (6), said folding crank (6) being fixedly connected with a bidirectional threaded rod (8).