Clamp for machining

Abstract

The clamp for machining comprises a workbench, a fixed clamping plate, a clamping lead screw, a motor and a movable clamping plate, the fixed clamping plate is fixedly installed on the left side of the top of the workbench, the clamping lead screw is movably connected into the workbench, and the motor is fixedly installed on the right side of the workbench. Through the arrangement of the moving plate, the moving lead screw, the workpiece lifting plate and the limiting assembly, after a workpiece is clamped, an operator moves the moving plate to drive the workpiece lifting plate to move to the middle of the bottom of the workpiece, then the operator rotates the moving lead screw, and the workpiece is lifted by the limiting assembly; the movable screw rod drives the workpiece lifting plate to move towards the clamped workpiece and to be attached to the surface of the workpiece, so that the workpiece lifting plate supports the clamped workpiece, the stability of the workpiece during machining is guaranteed, and the problem that the clamp is not provided with a supporting structure in the middle of the bottom of the workpiece, and the machining precision is poor is solved. And the workpiece may deform or shift due to the action of gravity in the machining process.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical processing, in particular to a clamp for mechanical processing. Background Art

[0002] Machining refers to the process of changing the external dimensions or performance of a workpiece through a mechanical device. It can be divided into cutting and pressure processing according to the difference in processing methods. A fixture is required during processing.

[0003] For example, the authorization announcement number: CN221583303U provides a clamp for machining, which relates to the field of machining technology, including: a base, a fixed plate is provided on one side of the top of the base, a groove is provided on the top of the base, a threaded rod is rotatably connected inside the groove, a movable plate is threadedly connected to the outside of the threaded rod, the fixed plate and the movable plate are both rotatably connected at the top position inside the fixed plate and the movable plate, a clamp is provided at one end of the two rotating rods facing the center, a rotating assembly is provided, the rotating assembly is provided inside the fixed plate and the movable plate, and is used to rotate and adjust the clamp, and a disassembly assembly is provided at one end of the rotating rod to facilitate the replacement of the clamp. This type of clamp can rotate and flip the workpiece through the rotating assembly, without the need for manual picking and flipping, reducing the process of repeated clamping, saving time and effort, and improving processing efficiency. Secondly, the clamp can be replaced by disassembling the assembly, and the corresponding clamp can be selected according to different workpieces to improve the practicality of the device.

[0004] Based on the search of the above patents and in combination with the equipment in the prior art, it is found that when the above equipment is used, it can solve the problem that the existing clamps need to be manually picked up and turned over when turning over.

[0005] However, in actual use, it was found that the above-mentioned fixture did not have a support structure in the middle of the bottom of the workpiece. First, due to the lack of middle support, the workpiece may be deformed or shifted due to gravity during processing. Second, the lack of middle support may also cause the workpiece to vibrate during processing. This vibration will not only reduce the processing quality, but may also damage the fixture itself, and even cause the workpiece to fall off, thereby causing a safety accident. In addition, for some workpieces that need to withstand large cutting forces, the lack of middle support may cause the fixture to be unable to provide sufficient clamping force, thereby affecting the stability and safety of the processing. Utility Model Content

[0006] In order to solve the problems raised in the above-mentioned background technology, the purpose of the present invention is to provide a fixture for mechanical processing, which has the advantage of auxiliary support and solves the problem that the above-mentioned fixture does not have a support structure in the middle of the bottom of the workpiece, and the workpiece may be deformed or shifted due to gravity during the processing.

[0007] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: a mechanical processing fixture, comprising a workbench, a fixed splint, a clamping screw, a motor and a movable splint, the fixed splint being fixedly mounted on the left side of the top of the workbench, the clamping screw being movably connected to the inside of the workbench, the motor being fixedly mounted on the right side of the workbench, the output end of the motor being fixedly connected to the right end of the clamping screw, the movable splint being threadedly connected to the top of the clamping screw, the top of the workbench being slidably connected to a movable plate, the front side of the top of the movable plate being movably connected to the movable screw, the surface of the movable screw being threadedly connected to a workpiece lifting plate, a limiting assembly being provided on the rear side of the top of the workpiece lifting plate, the bottom of the surface of the movable screw being movably connected to a supporting assembly, and the front and rear sides of the bottom of the movable plate being fixedly connected to a movable support assembly.

[0008] As a preferred embodiment of the present invention, the limiting assembly includes a limiting hole, which is opened on the rear side of the top of the workpiece lifting plate. The inner sliding connection of the limiting hole is connected to the limiting rod, and the bottom of the limiting rod is fixedly connected to the top of the movable plate.

[0009] As a preferred embodiment of the present invention, the support assembly includes a bearing, which is movably connected to the bottom of the surface of the movable screw rod, and a mounting hole is provided on the top of the movable plate, and the bearing is clamped and fixed inside the mounting hole.

[0010] As a preferred embodiment of the present invention, the movable support component includes a sliding block, which is fixedly connected to the front and rear sides of the bottom of the movable plate, and the front and rear sides of the top of the workbench are provided with sliding grooves, the sliding block is located inside the sliding groove, and the movable plate is slidably connected to the workbench through the sliding block and the sliding groove.

[0011] As a preferred embodiment of the present invention, the right side of the top of the sliding block is threadedly connected to a fixing screw.

[0012] As a preferred embodiment of the present invention, a workpiece protection pad is pasted on the top of the workpiece lifting plate, and the material of the workpiece protection pad is natural rubber.

[0013] As a preferred embodiment of the present invention, a rotary rocker is fixedly mounted on the top of the movable screw rod, and the rotary rocker is used to use the movable screw rod.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] 1. The utility model is provided with a movable plate, a movable screw, a workpiece lifting plate and a limit assembly. After the workpiece is clamped, the operator moves the movable plate to drive the workpiece lifting plate to move to the middle part of the bottom of the workpiece, and then the operator rotates the movable screw to drive the workpiece lifting plate to move toward the clamped workpiece and fit the workpiece surface, so that the workpiece lifting plate supports the clamped workpiece, ensuring the stability of the workpiece during processing, solving the problem that the above-mentioned fixture does not have a support structure in the middle of the bottom of the workpiece, and the workpiece may be deformed or shifted due to gravity during processing, thereby achieving the effect of auxiliary support.

[0016] 2. The utility model sets a limit assembly. When the movable screw rotates to drive the workpiece lifting plate to move, the workpiece lifting plate will move on the surface of the limit rod through the limit hole, so that the limit hole and the limit rod can limit the movement of the workpiece lifting plate, avoiding the workpiece lifting plate from rotating when the movable screw rotates, thereby ensuring the necessary conditions for the movement of the workpiece lifting plate.

[0017] 3. The utility model provides a support assembly so that the movable wire and the bearing can be movably installed, and then the bearing is clamped and installed inside the mounting hole, so that the movable screw can rotate stably through the bearing and the mounting hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the explosion structure of the utility model;

[0020] Figure 3 For this utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0021] In the figure: 1. Workbench; 2. Fixed splint; 3. Clamping screw; 4. Motor; 5. Movable splint; 6. Moving plate; 7. Moving screw; 8. Workpiece lifting plate; 9. Limiting assembly; 91. Limiting hole; 92. Limiting rod; 10. Support assembly; 101. Bearing; 102. Mounting hole; 11. Moving support assembly; 111. Sliding block; 112. Sliding groove; 12. Fixed screw; 13. Workpiece protection pad; 14. Rotary rocker. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] like Figures 1 to 3 As shown, the utility model provides a mechanical processing fixture, including a workbench 1, a fixed splint 2, a clamping screw 3, a motor 4 and a movable splint 5. The fixed splint 2 is fixedly installed on the left side of the top of the workbench 1, the clamping screw 3 is movably connected to the inside of the workbench 1, the motor 4 is fixedly installed on the right side of the workbench 1, the output end of the motor 4 is fixedly connected to the right end of the clamping screw 3, the movable splint 5 is threadedly connected to the top of the clamping screw 3, the top of the workbench 1 is slidably connected to the movable plate 6, the front side of the top of the movable plate 6 is movably connected to the movable screw 7, the surface of the movable screw 7 is threadedly connected to the workpiece lifting plate 8, the rear side of the top of the workpiece lifting plate 8 is provided with a limiting component 9, the bottom surface of the movable screw 7 is movably connected to the support component 10, and the front and rear sides of the bottom of the movable plate 6 are fixedly connected to the movable support component 11.

[0024] refer to Figure 2 The limiting assembly 9 includes a limiting hole 91, which is opened on the rear side of the top of the workpiece lifting plate 8. The internal sliding connection of the limiting hole 91 is a limiting rod 92, and the bottom of the limiting rod 92 is fixedly connected to the top of the movable plate 6.

[0025] As a technical optimization solution of the present invention, by setting a limit component 9, when the movable screw 7 rotates to drive the workpiece lifting plate 8 to move, the workpiece lifting plate 8 will move on the surface of the limit rod 92 through the limit hole 91, so that the limit hole 91 and the limit rod 92 can limit the movement of the workpiece lifting plate 8, avoiding the situation where the workpiece lifting plate 8 rotates when the movable screw 7 rotates, thereby ensuring the necessary conditions for the movement of the workpiece lifting plate 8.

[0026] refer to Figure 2 The support assembly 10 includes a bearing 101, which is movably connected to the bottom of the surface of the moving screw 7. A mounting hole 102 is opened on the top of the moving plate 6, and the bearing 101 is clamped and fixed inside the mounting hole 102.

[0027] As a technical optimization solution of the present invention, by setting a support assembly 10, the screw rod and the bearing 101 are movably installed, and the bearing 101 is snap-fitted and installed inside the mounting hole 102, so that the movable screw rod 7 can rotate stably through the bearing 101 and the mounting hole 102.

[0028] refer to Figure 2 The movable support assembly 11 includes a sliding block 111, which is fixedly connected to the front and rear sides of the bottom of the movable plate 6. The front and rear sides of the top of the workbench 1 are both provided with sliding grooves 112. The sliding block 111 is located inside the sliding groove 112. The movable plate 6 is slidably connected to the workbench 1 through the sliding block 111 and the sliding groove 112.

[0029] As a technical optimization solution of the present invention, by setting a movable support component 11, the movable plate 6 is slidably installed with the workbench 1 through the sliding block 111 and the sliding groove 112, so that the movable plate 6 can drive the workpiece lifting plate 8 to move through the sliding block 111 and the sliding groove 112, so that the workpiece lifting plate 8 can always support the middle part of the workpiece.

[0030] refer to Figure 3 The right side of the top of the sliding block 111 is threadedly connected with a fixing screw 12.

[0031] As a technical optimization solution of the present invention, by setting a fixed screw 12, when the movable plate 6 is adjusted to a suitable position through the sliding block 111, it is tightened by rotating the fixed screw 12, thereby preventing displacement caused by vibration or other external forces during the processing, thereby ensuring the processing accuracy.

[0032] refer to Figure 1 A workpiece protection pad 13 is pasted on the top of the workpiece lifting plate 8, and the material of the workpiece protection pad 13 is natural rubber.

[0033] As a technical optimization solution of the present invention, by setting a workpiece protection pad 13, the workpiece surface can be effectively protected from scratches, wear and other damages, thereby improving product quality. The natural rubber material has good elasticity and wear resistance, and can provide good cushioning and protection for the workpiece. At the same time, the pasting method is simple and convenient, and easy to replace and maintain.

[0034] refer to Figure 1 A rotary rocker 14 is fixedly mounted on the top of the movable screw rod 7 , and the rotary rocker 14 is used to move the movable screw rod 7 .

[0035] As a technical optimization solution of the present invention, by setting the rotary rocker 14, the operator can easily use the movable screw 7. The design of the rotary rocker 14 makes the operation more labor-saving and convenient. At the same time, the method of fixedly installing it on the top of the movable screw 7 also ensures its stability and reliability.

[0036] The working principle and use process of the present invention are as follows: when in use, the operator places the workpiece between the fixed clamping plate 2 and the movable clamping plate 5, and then starts the motor 4, which drives the clamping screw 3 to rotate. The rotation of the clamping screw 3 drives the movable clamping plate 5 to move along the screw direction, thereby gradually approaching or moving away from the fixed clamping plate 2. When the distance between the movable clamping plate 5 and the fixed clamping plate 2 is appropriate, the motor 4 is stopped. At this time, the workpiece is firmly clamped between the fixed clamping plate 2 and the movable clamping plate 5. When the clamping is completed, the operator pulls the movable plate 6. The movable plate 6 drives the workpiece lifting plate 8 to move toward the middle part of the workpiece through the sliding block 111 and the sliding groove 112. When the movement is completed, the fixed screw 12 on the sliding block 111 is rotated to tighten it, so that the fixed screw 12 prevents the movable plate 6 from moving. Then the operator rotates the movable screw 7, so that the movable screw 7 drives the workpiece lifting plate 8 to move upward through the limit rod 92, so that the workpiece lifting plate 8 moves to fit with the workpiece, so that the workpiece lifting plate 8 completes the lifting and support of the workpiece, thereby ensuring the stability of the workpiece during the processing.

[0037] To sum up: this kind of mechanical processing fixture is equipped with a movable plate 6, a movable screw 7, a workpiece lifting plate 8 and a limit assembly 9. After the workpiece is clamped, the operator moves the movable plate 6 to drive the workpiece lifting plate 8 to move to the middle part of the bottom of the workpiece, and then the operator rotates the movable screw 7 to drive the workpiece lifting plate 8 to move toward the clamped workpiece and fit the surface of the workpiece, so that the workpiece lifting plate 8 supports the clamped workpiece, ensuring the stability of the workpiece during processing, and solving the problem that the above-mentioned fixture does not have a support structure in the middle of the bottom of the workpiece, and the workpiece may be deformed or shifted due to gravity during processing.

[0038] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0039] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fixture for machining, comprising a workbench (1), a fixed clamping plate (2), a clamping screw (3), a motor (4) and a movable clamping plate (5), characterized in that: The fixed splint (2) is fixedly mounted on the left side of the top of the workbench (1), the clamping screw (3) is movably connected to the inside of the workbench (1), the motor (4) is fixedly mounted on the right side of the workbench (1), the output end of the motor (4) is fixedly connected to the right end of the clamping screw (3), the movable splint (5) is threadedly connected to the top of the clamping screw (3), the top of the workbench (1) is slidably connected to a movable plate (6), the front side of the top of the movable plate (6) is movably connected to a movable screw (7), the surface of the movable screw (7) is threadedly connected to a workpiece lifting plate (8), the rear side of the top of the workpiece lifting plate (8) is provided with a limiting component (9), the bottom of the surface of the movable screw (7) is movably connected to a support component (10), and the front and rear sides of the bottom of the movable plate (6) are fixedly connected to a movable support component (11).

2. A machining fixture according to claim 1, characterized in that: The limiting assembly (9) includes a limiting hole (91), the limiting hole (91) is opened on the rear side of the top of the workpiece lifting plate (8), the limiting hole (91) is internally slidably connected to a limiting rod (92), and the bottom of the limiting rod (92) is fixedly connected to the top of the movable plate (6).

3. The machining fixture according to claim 1, characterized in that: The support assembly (10) includes a bearing (101), the bearing (101) is movably connected to the bottom of the surface of the movable screw rod (7), the top of the movable plate (6) is provided with a mounting hole (102), and the bearing (101) is clamped and fixed inside the mounting hole (102).

4. The machining fixture according to claim 1, characterized in that: The movable support assembly (11) includes a sliding block (111), the sliding block (111) is fixedly connected to the front and rear sides of the bottom of the movable plate (6), the front and rear sides of the top of the workbench (1) are both provided with a sliding groove (112), the sliding block (111) is located inside the sliding groove (112), and the movable plate (6) is slidably connected to the workbench (1) through the sliding block (111) and the sliding groove (112).

5. The machining fixture according to claim 4, characterized in that: The right side of the top of the sliding block (111) is threadedly connected to a fixing screw (12).

6. The machining fixture according to claim 1, characterized in that: A workpiece protection pad (13) is attached to the top of the workpiece lifting plate (8), and the material of the workpiece protection pad (13) is natural rubber.

7. The machining fixture according to claim 1, characterized in that: A rotary rocker (14) is fixedly mounted on the top of the movable screw rod (7), and the rotary rocker (14) is used to use the movable screw rod (7).

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