CN216178729U

CN216178729U - Adjustable machining clamp

Info

Publication number: CN216178729U
Application number: CN202122771063.5U
Authority: CN
Inventors: 何健; 杨洪涛; 徐记顺
Original assignee: Anhui University of Science and Technology
Current assignee: Anhui University of Science and Technology
Priority date: 2021-11-12
Filing date: 2021-11-12
Publication date: 2022-04-05
Anticipated expiration: 2031-11-12

Abstract

The utility model relates to the technical field of machining, and discloses an adjustable machining clamp which comprises a base plate and a workbench, wherein the workbench is fixed on the outer wall of the top of the base plate through a support frame, the outer wall of the middle of the top of the workbench is provided with a placing groove in a rectangular structure, the inner wall of one side of the placing groove is fixedly connected with a first positioning plate, one side of the placing groove, which is far away from the first positioning plate, is provided with a second positioning plate, and the inner wall of one side of the placing groove is provided with a mounting groove. The clamping fixture disclosed by the utility model can be used for clamping and positioning workpieces with rectangular structures in the placing groove, and adjusting the distance between the first clamping plate and the second clamping plate and the distance between the first positioning plate and the second positioning plate according to the volume of the workpieces, so that an adjustable effect is achieved, and the positioning and clamping effect on the round workpieces can be realized by matching the action of the round placing table, so that the machining fixture can be used for clamping workpieces with different shapes, is relatively practical and is suitable for wide popularization and use.

Description

Adjustable machining clamp

Technical Field

The utility model relates to the technical field of machining, in particular to an adjustable machining clamp.

Background

Machining refers to a process of changing the outer dimensions or properties of a workpiece by a mechanical device, and is classified into cutting and pressing according to differences in machining modes. A jig used in a machining process refers to a device for fixing a machining object to a correct position in the process to receive a construction or inspection, and in a broad sense, a device for quickly, conveniently and safely mounting a workpiece in any process in the process may be referred to as a jig.

The retrieval publication number CN214024639U discloses a machining clamp, including pressing from both sides tight positioner one, press from both sides tight positioner two, the drive worm, driven worm wheel, the worm backup pad, worm driving motor, the worm wheel pivot, press from both sides tight drive gear, press from both sides tight drive shell, non-skid protrusions and anchor clamps work riser, the work efficiency of machining clamp has been improved, press from both sides tight drive shell through setting up, non-skid protrusions has promoted the portability of machining clamp, through setting up only one worm driving motor alright drive press from both sides tight positioner one and press from both sides tight positioner two, the cost of manufacture and the energy consumption of machining clamp have been reduced, the degree of automation of machining clamp has been promoted, the use experience of machining clamp has been improved, the cost of maintaining of machining clamp has been reduced, the life of machining clamp has been prolonged.

However, the inventor finds that the technical scheme still has at least the following defects: when clamping workpieces, the adjustable function is lacked, when the sizes of the workpieces are different, a better clamping effect cannot be achieved, the function of clamping workpieces in different shapes is not achieved, and the applicability is not wide enough.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an adjustable machining clamp, which solves the problem that the prior art lacks of adjustable functions.

In order to achieve the purpose, the utility model provides the following technical scheme: an adjustable machining clamp comprises a base plate and a workbench, wherein the workbench is fixed on the outer wall of the top of the base plate through a support frame, a placing groove with a rectangular structure is formed in the outer wall of the middle of the top of the workbench, a first positioning plate is fixedly connected to the inner wall of one side of the placing groove, a second positioning plate is arranged on one side, away from the first positioning plate, of the placing groove, a mounting groove is formed in the inner wall of one side of the placing groove, a second lead screw is rotatably connected to the inner wall of one side of the mounting groove, a connecting rod is screwed on the outer wall of the second lead screw, one end of the connecting rod is slidably connected to the inner wall of the mounting groove, and one end of the connecting rod is fixedly connected to the outer wall of one side of the second positioning plate;

the one end fixedly connected with carousel that the second lead screw is located the workstation outside, standing groove one side inner wall fixedly connected with fixing base, the opening has been seted up to fixing base one side outer wall, and opening inner wall sliding connection has the connecting block, connecting block one end is fixed on second locating plate one side outer wall.

As a preferred embodiment of the present invention, the outer wall of one side of the workbench is fixedly connected with symmetrically arranged slide rails, the inner walls of the two slide rails are slidably connected with support rods having an L-shaped structure, the top ends of the two support rods are fixedly connected with the same guide plate, the outer wall of one side of the guide plate is fixedly connected with a circular placing table, and the circular placing table is located above the placing groove.

As a preferred embodiment of the present invention, the outer wall of one side of each of the two slide rails is fixedly connected to a same side plate, the outer wall of one side of each of the side plates is fixedly connected to an air cylinder, and a piston rod of the air cylinder is connected to the outer wall of one side of the guide plate.

As a preferred embodiment of the present invention, a first clamping plate is slidably connected to an outer wall of one side of the top of the workbench, the first clamping plate is located on one side of the placement groove, a second clamping plate is arranged on one side of the top of the workbench, which is away from the first clamping plate, the second clamping plate and the first clamping plate are symmetrical to each other, and two rubber pads are fixedly connected to outer walls of opposite sides of the first clamping plate and the second clamping plate.

As a preferred embodiment of the utility model, the outer wall of the top of the workbench is provided with a movable hole, the inner wall of the movable hole is connected with a guide rod in a sliding manner, and the top end of the guide rod is fixed on the outer wall of the bottom of the second clamping plate.

As a preferred embodiment of the present invention, two fixing plates are fixedly connected to an outer wall of the top of the substrate, and a first lead screw is rotatably connected to an outer wall of one side of one of the fixing plates, wherein a driving motor is fixedly connected to an outer wall of one side of one of the fixing plates, and an output shaft of the driving motor is connected to one end of the first lead screw.

In a preferred embodiment of the present invention, the driving motor and the cylinder are connected to a switch through a wire, and the switch is connected to a controller through a wire.

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

1. according to the adjustable machining clamp, the two sides of the bottom end of the rectangular structure workpiece in the placing groove can be clamped and positioned by the aid of the arranged first positioning plate, the second positioning plate, the fixing seat and the connecting block and under the action of the rotary table, the second screw rod and the connecting rod, the two sides of the top end of the bottom end of the rectangular structure workpiece in the placing groove can be clamped and positioned by the aid of the arranged first clamping plate, the second clamping plate, the rubber pad, the fixing plate, the guide rod, the first screw rod and the driving motor, so that a good fixing clamping effect is achieved, the distance between the first clamping plate and the second clamping plate and the distance between the first positioning plate and the second positioning plate can be adjusted according to the size of the workpiece, an adjustable effect is achieved, and the applicability is high.

2. According to the adjustable machining clamp, the sliding rail, the supporting rod, the guide plate, the side plate, the air cylinder and the circular placing table are arranged, and the positioning clamping effect on the circular workpiece can be realized under the action of the first clamping plate, the second clamping plate, the rubber pad, the fixing plate, the guide rod, the first screw rod and the driving motor, so that the machining clamp can clamp workpieces in different shapes.

Drawings

Other features, objects and advantages of the utility model will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

FIG. 1 is a schematic perspective view of an adjustable machining fixture according to the present invention;

FIG. 2 is a schematic top view of a circular placement table of an adjustable machining fixture according to the present invention;

FIG. 3 is a schematic top view of a portion of a cross-sectional structure of a table of an adjustable machining fixture of the present invention.

In the figure: 1. a substrate; 2. a work table; 3. a placement groove; 4. a first splint; 5. a fixing plate; 6. a first lead screw; 7. a guide bar; 8. a second splint; 9. a drive motor; 10. a rubber pad; 11. a slide rail; 12. a support bar; 13. a side plate; 14. a circular placing table; 15. a guide plate; 16. a cylinder; 17. a turntable; 18. a first positioning plate; 19. mounting grooves; 20. a second lead screw; 21. a second positioning plate; 22. a connecting rod; 23. a fixed seat; 24. and (4) connecting the blocks.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the utility model easy to understand, the utility model is further described with the specific embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being 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.

Referring to fig. 1 and 3, the present invention provides a technical solution: an adjustable machining clamp comprises a base plate 1 and a workbench 2, the workbench 2 is fixed on the outer wall of the top of the base plate 1 through a support frame, a placing groove 3 with a rectangular structure is formed in the outer wall of the middle of the top of the workbench 2, a first positioning plate 18 is fixedly connected to the inner wall of one side of the placing groove 3, a workpiece with a rectangular structure to be machined is placed on the inner side of the placing groove 3, one end of the workpiece is in contact with the outer wall of one side of the first positioning plate 18, a second positioning plate 21 is arranged on one side, away from the first positioning plate 18, of the placing groove 3, a mounting groove 19 is formed in the inner wall of one side of the placing groove 3, a second lead screw 20 is rotatably connected to the inner wall of one side of the mounting groove 19, a connecting rod 22 is connected to the outer wall of the second lead screw 20 in a threaded mode, one end of the connecting rod 22 is slidably connected to the inner wall of the mounting groove 19, and one end of the connecting rod 22 is fixedly connected to the outer wall of one side of the second positioning plate 21;

one end of the second screw rod 20, which is positioned at the outer side of the workbench 2, is fixedly connected with a turntable 17, the turntable 17 is rotated, the turntable 17 drives the second screw rod 20 to rotate, the second screw rod 20 drives a connecting rod 22 to move transversely, the connecting rod 22 drives the second positioning plate 21 to move towards the rectangular workpiece until the second positioning plate 21 contacts with the outer wall of one side of the rectangular workpiece, which is far away from the first positioning plate 18, and the fixed clamping effect on the bottom of the rectangular workpiece can be realized by matching the action of the first positioning plate 18, and the distance between the first positioning plate 18 and the second positioning plate 21 can be adjusted according to the volume of the rectangular workpiece, thereby achieving the effect of adjustment and having stronger applicability, the inner wall of one side of the placing groove 3 is fixedly connected with a fixed seat 23, the outer wall of one side of the fixed seat 23 is provided with an opening, and the inner wall of the opening is connected with a connecting block 24 in a sliding way, and one end of the connecting block 24 is fixed on the outer wall of one side of the second positioning plate 21.

Referring to fig. 1-2, in a specific embodiment, the outer wall of one side of the worktable 2 is fixedly connected with symmetrically arranged slide rails 11, the inner walls of the two slide rails 11 are both slidably connected with support rods 12 of L-shaped structure, the top ends of the two support rods 12 are fixedly connected with a same guide plate 15, the outer wall of one side of the guide plate 15 is fixedly connected with a circular placing table 14, a circular workpiece is placed on the circular placing table 14, the circular workpiece is positioned and clamped by the first clamping plate 4, the second clamping plate 8 and the rubber pad 10, so that the machining fixture can clamp workpieces of different shapes, the circular placing table 14 is positioned above the placing groove 3, the outer wall of one side of the two slide rails 11 is fixedly connected with a same side plate 13, the outer wall of one side of the side plate 13 is fixedly connected with a cylinder 16, and the piston rod of the cylinder 16 is connected to the outer wall of one side of the guide plate 15, when a workpiece with a circular structure needs to be machined, the starting cylinder 16 pushes the circular placing table 14 to move above the placing groove 3 under the action of the slide rail 11, the support rod 12 and the guide plate 15 until the circular placing table 14 is positioned right above the placing groove 3.

Referring to fig. 1-3, further, a first clamping plate 4 is slidably connected to an outer wall of one side of the top of the worktable 2, the first clamping plate 4 is located on one side of the placing groove 3, the first clamping plate 4 is pushed to move towards one side of the workpiece until a rubber pad 10 on the first clamping plate 4 contacts with an outer wall of one side of the workpiece, a second clamping plate 8 is arranged on one side of the top of the worktable 2 away from the first clamping plate 4, the second clamping plate 8 and the first clamping plate 4 are symmetrical to each other, two rubber pads 10 are fixedly connected to outer walls of opposite sides of the first clamping plate 4 and the second clamping plate 8, a movable hole is formed in the outer wall of the top of the worktable 2, a guide rod 7 is slidably connected to an inner wall of the movable hole, the top end of the guide rod 7 is fixed to an outer wall of the bottom of the second clamping plate 8, two fixing plates 5 are fixedly connected to the outer wall of the top of the base plate 1, a first screw 6 is rotatably connected to an outer wall of one of the fixing plates 5, a driving motor 9 is fixedly connected to an outer wall of one fixing plate 5, and the output shaft of the driving motor 9 is connected to one end of the first screw rod 6, the driving motor 9 is started to drive the first screw rod 6 to rotate, the first screw rod 6 drives the guide rod 7 to transversely move, the guide rod 7 drives the second clamping plate 8 to move towards the workpiece until the rubber pad 10 on the second clamping plate 8 is contacted with the outer wall of one side of the workpiece far away from the first clamping plate 4, so that the fixed clamping effect on the top of the rectangular workpiece can be realized by matching with the action of the first clamping plate 4, and the distance between the first clamping plate 4 and the second clamping plate 8 can be adjusted according to the volume of the rectangular workpiece, so that the adjustable effect is achieved, the applicability is stronger, the driving motor 9 and the cylinder 16 are both connected with a switch through wires, the switch is connected with a controller through wires, and the controller is ABB-1769-L35 CR.

It should be noted that the present invention is an adjustable machining fixture, each of which is a universal standard component or a component known to those skilled in the art, and the structure and principle of which are known to those skilled in the art through technical manuals or through routine experiments.

The working principle is as follows: when the device is used, firstly, a workpiece with a rectangular structure to be processed is placed on the inner side of the placing groove 3, one end of the workpiece is contacted with the outer wall of one side of the first positioning plate 18, at the moment, the rotating disc 17 is rotated, the rotating disc 17 drives the second screw rod 20 to rotate, the second screw rod 20 drives the connecting rod 22 to move transversely, the connecting rod 22 drives the second positioning plate 21 to move towards the rectangular workpiece under the action of the fixed seat 23 and the connecting block 24 until the second positioning plate 21 is contacted with the outer wall of one side of the rectangular workpiece, which is far away from the first positioning plate 18, so that the fixed clamping effect on the bottom of the rectangular workpiece can be realized under the action of the first positioning plate 18, then the first clamping plate 4 is pushed to move towards one side of the workpiece until the rubber pad 10 on the first clamping plate 4 is contacted with the outer wall of one side of the workpiece, meanwhile, the driving motor 9 is started to drive the first screw rod 6 to drive the guide rod 7 to move transversely, the guide rod 7 drives the second clamping plate 8 to move towards the workpiece, until the rubber pad 10 on the second clamping plate 8 and the outer wall of one side of the workpiece far away from the first clamping plate 4 contact, the effect of the first clamping plate 4 is matched, the fixed clamping effect on the top of the rectangular workpiece can be realized, the distance between the first clamping plate 4 and the second clamping plate 8 and the distance between the first positioning plate 18 and the second positioning plate 21 can be adjusted according to the volume of the rectangular workpiece, the adjustable effect is achieved, the applicability is stronger, when the workpiece with a circular structure needs to be machined, the starting cylinder 16 acts through the sliding rail 11, the supporting rod 12 and the guide plate 15 to push the circular placing table 14 to move towards the upper part of the placing groove 3 until the circular placing table 14 is positioned right above the placing groove 3, then the circular workpiece is placed on the circular placing table 14 and passes through the first clamping plate 4, The effect of second splint 8 and rubber pad 10 realizes the location centre gripping effect to circular work piece to make this machining anchor clamps can carry out the centre gripping to the work piece of different shapes.

Claims

1. The utility model provides an adjustable machining anchor clamps which characterized in that: the positioning device comprises a base plate (1) and a workbench (2), wherein the workbench (2) is fixed on the outer wall of the top of the base plate (1) through a support frame, a placing groove (3) with a rectangular structure is formed in the outer wall of the middle of the top of the workbench (2), a first positioning plate (18) is fixedly connected to the inner wall of one side of the placing groove (3), a second positioning plate (21) is arranged on one side, away from the first positioning plate (18), of the placing groove (3), a mounting groove (19) is formed in the inner wall of one side of the placing groove (3), a second lead screw (20) is rotatably connected to the inner wall of one side of the mounting groove (19), a connecting rod (22) is screwed to the outer wall of the second lead screw (20), one end of the connecting rod (22) is slidably connected to the inner wall of the mounting groove (19), and one end of the connecting rod (22) is fixedly connected to the outer wall of one side of the second positioning plate (21);

one end fixedly connected with carousel (17) that second lead screw (20) are located workstation (2) outside, inner wall fixedly connected with fixing base (23) in standing groove (3) one side, the opening has been seted up to fixing base (23) one side outer wall, and opening inner wall sliding connection has connecting block (24), connecting block (24) one end is fixed on second locating plate (21) one side outer wall.

2. An adjustable machining fixture according to claim 1, wherein: slide rail (11), two that workstation (2) one side outer wall fixedly connected with symmetry set up slide rail (11) inner wall equal sliding connection has bracing piece (12) of L type structure, and the same deflector (15) of two bracing pieces (12) top fixedly connected with, the circular platform (14) of placing of deflector (15) one side outer wall fixedly connected with, circular platform (14) of placing is located standing groove (3) top.

3. An adjustable machining fixture according to claim 2, wherein: two slide rail (11) one side outer wall fixedly connected with is same curb plate (13), curb plate (13) one side outer wall fixedly connected with cylinder (16), and the piston rod of cylinder (16) is connected on deflector (15) one side outer wall.

4. An adjustable machining fixture according to claim 3, wherein: workstation (2) top one side outer wall sliding connection has first splint (4), and first splint (4) are located standing groove (3) one side, one side that first splint (4) were kept away from at workstation (2) top is equipped with second splint (8), second splint (8) and first splint (4) mutual symmetry, and two rubber pads (10) of the equal fixedly connected with of the relative one side outer wall of first splint (4) and second splint (8).

5. An adjustable machining fixture according to claim 4, wherein: the movable hole has been seted up to workstation (2) top outer wall, and movable hole inner wall sliding connection has guide bar (7), guide bar (7) top is fixed on second splint (8) bottom outer wall.

6. An adjustable machining fixture according to claim 5, wherein: the outer wall of the top of the base plate (1) is fixedly connected with two fixing plates (5), the outer wall of one side of one fixing plate (5) is rotatably connected with a first screw rod (6), the outer wall of one side of one fixing plate (5) is fixedly connected with a driving motor (9), and an output shaft of the driving motor (9) is connected to one end of the first screw rod (6).

7. An adjustable machining fixture according to claim 6, wherein: the driving motor (9) and the air cylinder (16) are both connected with a switch through wires, and the switch is connected with a controller through wires.