Clamp for mechanical engineering

Abstract

The utility model discloses a mechanical engineering clamp which comprises a first box body, a first rectangular through hole is formed in the upper wall face of the first box body, a second box body is installed on the side wall face of the first box body, a driving clamping mechanism is installed in the first box body, a first rod body moves in a first barrel through a spring, and a second rod body moves in a second barrel through a spring. At the moment, the first rod bodies move in the first barrel in a limited mode in the sliding grooves through the sliding blocks, so that the multiple first rod bodies move according to the shapes and specifications of the workpieces and complete clamping, then clamping and fixing of the workpieces of different specifications and shapes and fragile materials are completed, and when the situation that springs are attenuated or the first rod bodies are damaged occurs, the clamping and fixing of the workpieces are completed. The first barrel can be rotated through the handle and the circular plate by opening the sliding door on the side wall face of the first groove body, at the moment, the first barrel is taken out to be replaced through threaded linkage of the threaded hole of the second plate body and the outer wall face of the first barrel, and then convenient maintenance of the clamp is completed.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical engineering technical field, concretely is a clamp for mechanical engineering. BACKGROUND

[0002] Mechanical engineering major belongs to mechanical major, when carrying out mechanical manufacturing processing workpiece on machine tool, in order to make the surface of workpiece reach the size specified in drawing, including geometry and the mutual position precision with other surfaces and other technical requirements, must be well equipped with workpiece before processing.

[0003] There are various clamps in prior art, such as the mechanical engineering clamp disclosed in the Chinese new practical new type with patent number CN202321158695.7, which includes main body mechanism, adjusting mechanism and limiting mechanism, the adjusting mechanism is located at the upper end of the main body mechanism, and the limiting mechanism is located at the right end of the adjusting mechanism, but when clamping different specifications of parts or fragile material parts, the clamp will not be able to completely clamp and damage the fragile material parts, which is inconvenient to use, therefore, a clamping tool for workpieces of different specifications and shapes and fragile material parts is designed, so that the use of the mechanical engineering clamp is needed. SUMMARY

[0004] In view of the deficiencies of the prior art, the utility model provides a clamp for mechanical engineering, which solves the technical problems raised in the background art.

[0005] To achieve the above purpose, the utility model realizes the following technical scheme: a clamp for mechanical engineering, comprising a first box body, a first rectangular through hole is formed in the upper wall of the first box body, a second box body is installed on the side wall of the first box body, a driving clamping mechanism is installed inside the first box body, a pair of clamping mechanisms are installed at the upper end of the driving clamping mechanism, and the clamping mechanism comprises a clamping box body assembly and a clamping assembly.

[0006] Preferably, the driving clamping mechanism comprises a motor, the motor is installed inside the second box body, a bidirectional threaded rod is installed on the driving end of the motor, and the other end of the bidirectional threaded rod is screwed to the inner side wall of the first box body, a slide rail is installed on the lower wall inside the first box body, a pair of bidirectional threaded rods are installed on the slide rail and located inside the first rectangular through hole, first threaded holes are formed in the side walls of the pair of bidirectional threaded rods, and the first threaded holes of the pair of bidirectional threaded rods are sleeved on the bidirectional threaded rod, and a pair of clamping box body assemblies are installed on the upper walls of the pair of bidirectional threaded rods.

[0007] Preferably, the clamp box body assembly comprises a first plate body, a pair of the first plate bodies are respectively installed on the upper wall surfaces of a pair of fixed blocks, a pair of first slot bodies are respectively inserted on the side wall surfaces of the pair of first plate bodies, a pair of second rectangular through holes are formed on the inner side wall surfaces of the pair of first slot bodies, and a pair of pull doors are respectively installed in the pair of second rectangular through holes.

[0008] Preferably, the clamp assembly comprises a second plate body, the second plate body is installed in the first slot body, a plurality of second threaded holes are formed on the side wall surface of the second plate body, a plurality of first cylinder bodies are respectively inserted in the plurality of second threaded holes, a circular plate body is installed on one end of the side wall surface of the first cylinder body, a handle is installed on one end of the side wall surface of the circular plate body, a pair of sliding grooves are formed on the inner side wall surface of the first cylinder body, a pair of sliding blocks are respectively installed in the pair of sliding grooves, a first rod body is installed on the pair of sliding blocks, and a spring is installed between the first rod body and one end of the side wall surface of the circular plate body.

[0009] Preferably, a threaded groove is formed on the outer wall surface of each of the plurality of first cylinder bodies, and the threaded groove on the outer wall surface of each of the plurality of first cylinder bodies is engaged with the threaded hole in the side wall surface of the second plate body.

[0010] Preferably, the clamp fixing assembly comprises a third box body, the third box body is installed on the upper wall surface of the first plate body, a pneumatic cylinder is installed in the third box body, a connecting plate is installed on the extension end of the pneumatic cylinder and located in the first plate body, a second sliding groove is formed on the lower wall surface of the first plate body, a pair of second sliding blocks are installed in the second sliding groove, a pair of third plate bodies are respectively installed on the upper wall surfaces of the pair of second sliding blocks, a pair of connecting rods are respectively hinged to the upper wall surfaces of the pair of third plate bodies, the upper wall surfaces of the pair of connecting rods are hinged to the lower wall surface of the connecting plate, and a plurality of arc-shaped grooves are formed on the side wall surfaces of the pair of third plate bodies.

[0011] Advantages

[0012] The utility model provides a kind of clamp for mechanical engineering, the utility model is placed between a plurality of first rod body when carrying out mechanical workpiece clamping, motor inside second box is started to move by slide rail limit a pair of fixed block at this time, to complete the relative or opposite movement of a pair of fixed block by the positive and negative rotation of motor, so that a plurality of first rod body is close to workpiece, first rod body moves inside first cylinder by spring at this time, first rod body moves inside first cylinder by slide block in the limit movement in sliding slot at this time, to complete a plurality of first rod body according to the movement of workpiece shape specification and complete clamping, to complete clamping fixation of different specification shape and fragile material workpiece in turn, in the case of spring attenuation or first rod body damage, can be opened by first slot body side wall face door, by handle and circular plate body rotation first cylinder, at this time, by the screw hole of second plate body and the screw thread linkage of first cylinder outer wall surface, to remove first cylinder and complete replacement, to complete the convenient maintenance of clamp. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is the schematic diagram of shaft measurement for the clamp for mechanical engineering.

[0014] Figure 2 It is the spring structure schematic diagram for the clamp for mechanical engineering.

[0015] Figure 3 It is the motor structure schematic diagram for the clamp for mechanical engineering.

[0016] Figure 4 It is the connecting plate structure schematic diagram for the clamp for mechanical engineering.

[0017] In the drawing: 1, first box body;2, second box body;3, first plate body;4, first slot body;5, first rod body;6, fixed block;7, door;8, second plate body;9, spring;10, first slide block;11, first cylinder;12, circular plate body;13, handle;14, motor;15, slide rail;16, two-way threaded rod;17, third box body;18, air cylinder;19, connecting plate;20, second slide block;21, third plate body;22, connecting rod. DETAILED DESCRIPTION

[0018] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings of the embodiments of the utility model, and obviously, the described embodiments are only a part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0019] Please refer toFigures 1-4 The utility model provides a technical scheme: a clamp for mechanical engineering, including first box body 1, first box body 1 upper wall surface is equipped with first rectangle through -hole, second box body 2 is installed on first box body 1 lateral surface, drive clamping mechanism is installed in first box body 1, a pair of clamp mechanism is installed on the drive clamping mechanism upper end, the clamp mechanism includes clamp box body subassembly and clamp subassembly.

[0020] When clamping the mechanical workpiece, the workpiece is placed between the first rod bodies 5, the motor 14 in the second box body 2 is started at this time, the bidirectional threaded rod 16 is rotated by the driving end of the motor 14, the screw holes in the pair of fixed blocks 6 are linked with the threads on the outer wall surface of the bidirectional threaded rod 16 at this time, and the pair of fixed blocks 6 are limited to move through the slide rail 15, so that the relative or opposite movement of the pair of fixed blocks 6 is completed by the forward and reverse rotation of the motor 14, so that the first rod bodies 5 are moved to the workpiece at this time, the first rod bodies 5 are moved in the first cylinder 11 by the spring 9 at this time, the first rod bodies 5 are limited to move in the slide groove in the first cylinder 11 at this time, so that the first rod bodies 5 are moved according to the shape and specifications of the workpiece and clamping is completed, and then clamping and fixing of workpieces of different specifications, shapes and fragile materials are completed, in the case that the spring 9 is attenuated or the first rod body 5 is damaged, the door 7 on the side wall surface of the first groove body 4 is opened, the first cylinder 11 is rotated by the handle 13 and the circular plate body 12 at this time, the screw holes of the second plate body 8 are linked with the threads on the outer wall surface of the first cylinder 11 at this time, so that the first cylinder 11 is taken out for replacement, and convenient maintenance of the clamp is completed.

[0021] The utility model further provides that the drive clamping mechanism includes the motor 14, the motor 14 is installed in the second box body 2, the bidirectional threaded rod 16 is installed to the motor 14 driving end and the other end of bidirectional threaded rod 16 is rotated and is connected on the inside lateral surface of first box body 1, the slide rail 15 is installed on the inside lower wall surface of first box body 1, a pair of bidirectional threaded rods 16 are installed on the slide rail 15 and a pair of bidirectional threaded rods 16 are located in the first rectangle through -hole, the first screw hole of a pair of bidirectional threaded rods 16 is all fitted on bidirectional threaded rod 16, and a pair of clamp box body subassembly are installed on the upper wall surface of a pair of bidirectional threaded rods 16.

[0022] The motor 14 in the second box body 2 is started, the bidirectional threaded rod 16 is rotated by the driving end of the motor 14 at this time, the screw holes in the pair of fixed blocks 6 are linked with the threads on the outer wall surface of the bidirectional threaded rod 16 at this time, and the pair of fixed blocks 6 are limited to move through the slide rail 15, so that the relative or opposite movement of the pair of fixed blocks 6 is completed by the forward and reverse rotation of the motor 14, so that the first rod bodies 5 are moved to the workpiece.

[0023] The embodiment is further provided with the clamp box body assembly, which comprises a first plate body 3, a pair of the first plate bodies 3 are respectively installed on the upper wall surface of a pair of fixed blocks 6, a pair of first groove bodies 4 are inserted on the side wall surface of the pair of first plate bodies 3, a pair of second rectangular through holes are formed on the inner side wall surface of the pair of first groove bodies 4, and a pair of pull doors 7 are installed in the pair of second rectangular through holes.

[0024] The embodiment is further provided with the clamp assembly, which comprises a second plate body 8, the second plate body 8 is installed in the first groove body 4, a plurality of second threaded holes are formed on the side wall surface of the second plate body 8, a plurality of first cylinder bodies 11 are inserted in the plurality of second threaded holes, a circular plate body 12 is installed on one end of the side wall surface of the first cylinder body 11, a handle 13 is installed on one end of the side wall surface of the circular plate body 12, a pair of sliding grooves are formed on the inner side wall surface of the first cylinder body 11, a pair of sliding blocks 10 are installed in the pair of sliding grooves, a first rod body 5 is installed on the pair of sliding blocks 10, and a spring 9 is installed between the first rod body 5 and one end of the side wall surface of the circular plate body 12.

[0025] The first rod body 5 moves in the first cylinder body 11 through the spring 9, at this time, the first rod body 5 moves in the first cylinder body 11 through the sliding block 10 in the sliding groove, so as to complete the movement of a plurality of first rod bodies 5 according to the shape specifications of the workpieces and complete clamping, thereby completing the clamping and fixing of workpieces of different specifications, shapes and fragile materials, in the case of spring 9 attenuation or first rod body 5 damage, the first cylinder body 11 can be taken out for replacement by opening the pull door 7 on the side wall surface of the first groove body 4, rotating the first cylinder body 11 through the handle 13 and the circular plate body 12, and the threaded hole of the second plate body 8 and the threads on the outer wall surface of the first cylinder body 11 are linked at this time.

[0026] The embodiment is further provided with that a plurality of threaded grooves are formed on the outer wall surface of the plurality of first cylinder bodies 11, and the plurality of threaded grooves on the outer wall surface of the plurality of first cylinder bodies 11 are engaged with the threaded holes on the side wall surface of the second plate body 8.

[0027] The embodiment is further provided with the clamp fixing assembly, which comprises a third box body 17, the third box body 17 is installed on the upper wall surface of the first plate body 3, a gas cylinder 18 is installed in the third box body 17, a connecting plate 19 is installed on the telescopic end of the gas cylinder 18 and located in the first plate body 3, a second sliding groove is formed on the lower wall surface in the first plate body 3, a pair of second sliding blocks 20 are installed in the second sliding groove, a third plate body 21 is installed on the upper wall surface of the pair of second sliding blocks 20, a connecting rod 22 is hingedly connected to the upper wall surface of the pair of third plate bodies 21, the lower wall surface of the connecting plate 19, and a plurality of arc-shaped grooves are formed on the side wall surface of the pair of third plate bodies 21.

[0028] At this time, the cylinder 18 is started, the connecting plate 19 is driven to move up and down through the telescopic end of the cylinder 18, thereby driving the connecting rod 22 hinged at the lower end of the connecting plate 19 and the third plate body 21 hinged at the lower end of the connecting rod 22 to move, at this time, the pair of third plate bodies 21 can move inside the sliding groove through the pair of second sliding blocks 20, thereby fixing the first rod bodies 5 through the arc-shaped grooves between the pair of third plate bodies 21.

[0029] The detailed connection means is a technology known in the art, and the working principle and process are mainly introduced below. The specific work is as follows.

[0030] Embodiment: when clamping a mechanical workpiece, the workpiece is placed between the first rod bodies 5, at this time, the motor 14 in the second box body 2 is started, the bidirectional threaded rod 16 is driven to rotate through the driving end of the motor 14, at this time, the pair of fixed blocks 6 are limited to move through the threaded holes in the pair of fixed blocks 6 and the threads on the outer wall surface of the bidirectional threaded rod 16, thereby completing the relative or opposite movement of the pair of fixed blocks 6 through the forward and reverse rotation of the motor 14, thereby moving the first rod bodies 5 to the workpiece, at this time, the first rod bodies 5 move in the first cylinder body 11 through the spring 9, at this time, the first rod bodies 5 are limited to move in the sliding groove in the first cylinder body 11 through the sliding block 10, thereby completing the movement and clamping of the first rod bodies 5 according to the shape and specifications of the workpiece, at this time, the cylinder 18 is started, the connecting plate 19 is driven to move up and down through the telescopic end of the cylinder 18, thereby driving the connecting rod 22 hinged at the lower end of the connecting plate 19 and the third plate body 21 hinged at the lower end of the connecting rod 22 to move, at this time, the pair of third plate bodies 21 can move inside the sliding groove through the pair of second sliding blocks 20, thereby fixing the first rod bodies 5 through the arc-shaped grooves between the pair of third plate bodies 21, thereby completing the clamping and fixing of workpieces of different specifications, shapes and fragile materials, in the case of spring 9 attenuation or first rod body 5 damage, the door 7 on the side wall of the first groove body 4 can be opened, the first cylinder body 11 is rotated through the handle 13 and the circular plate body 12, at this time, the first cylinder body 11 is removed through the threaded holes in the second plate body 8 and the threads on the outer wall surface of the first cylinder body 11, thereby completing the replacement and convenient maintenance of the clamp.

[0031] It should be noted that, in this text, relational terms such as first and second are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

Claims

1. A mechanical engineering jig comprising a first box (1), characterized in that, The first box (1) upper wall surface is provided with a first rectangular through hole, the first box (1) side wall surface is provided with a second box (2), the first box (1) is internally provided with a driving clamping mechanism, the driving clamping mechanism upper end is provided with a pair of clamp mechanisms, the clamp mechanism includes a clamp box assembly, a clamp assembly and three pairs of clamp fixing assemblies, and the three pairs of clamp fixing assemblies correspond to the clamp assembly.

2. A fixture for mechanical engineering according to claim 1, characterized in that The driving clamping mechanism includes a motor (14), the motor (14) is installed in the second box (2), the motor (14) driving end is provided with a bidirectional threaded rod (16), and the other end of the bidirectional threaded rod (16) is screwed to the inner side wall surface of the first box (1), the slide rail (15) is installed on the lower wall surface of the first box (1), a pair of bidirectional threaded rods (16) are installed on the slide rail (15), and the pair of bidirectional threaded rods (16) are located in the first rectangular through hole, the side wall surface of the pair of bidirectional threaded rods (16) is provided with a first threaded hole, and the first threaded hole of the pair of bidirectional threaded rods (16) is sleeved on the bidirectional threaded rod (16), and the pair of clamp box assemblies are installed on the upper wall surface of the pair of bidirectional threaded rods (16).

3. A fixture for mechanical engineering according to claim 2, characterized in that The clamp box assembly includes a first plate body (3), a pair of first plate bodies (3) are respectively installed on the upper wall surface of a pair of fixed blocks (6), a pair of first slot bodies (4) are inserted on the side wall surface of the pair of first plate bodies (3), a second rectangular through hole is formed in the inner side wall surface of the pair of first slot bodies (4), and a sliding door (7) is installed in the second rectangular through hole.

4. The mechanical engineering fixture according to claim 1, wherein The clamp assembly includes a second plate body (8), the second plate body (8) is installed in the first slot body (4), a plurality of second threaded holes are formed in the side wall surface of the second plate body (8), a first cylinder body (11) is inserted in the second threaded hole, a circular plate body (12) is installed on one end of the side wall surface of the first cylinder body (11), a handle (13) is installed on one end of the side wall surface of the circular plate body (12), a pair of sliding grooves are formed in the inner side wall surface of the first cylinder body (11), a sliding block (10) is installed in the sliding groove, a first rod body (5) is installed on the sliding block (10), and a spring (9) is installed between the first rod body (5) and one end of the side wall surface of the circular plate body (12).

5. A mechanical engineering jig according to claim 4, wherein A plurality of threaded grooves are formed in the outer wall surface of the first cylinder body (11), and the threaded grooves of the plurality of first cylinder bodies (11) are engaged with the threaded holes in the side wall surface of the second plate body (8).

6. The mechanical engineering fixture according to claim 1, wherein The clamp fixing assembly comprises a third box body (17) mounted on the upper wall of the first plate body (3), a gas cylinder (18) mounted in the third box body (17), a connecting plate (19) mounted on the telescopic end of the gas cylinder (18) and located in the first plate body (3), a second sliding groove formed in the lower wall of the first plate body (3), a pair of second sliding blocks (20) mounted in the second sliding groove, a third plate body (21) mounted on the upper wall of each of the second sliding blocks (20), a connecting rod (22) hingedly connected to the upper wall of each of the third plate bodies (21), the upper walls of the connecting rods (22) being hingedly connected to the lower wall of the connecting plate (19), and a plurality of arc-shaped grooves formed in the side walls of the third plate bodies (21).

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