Movable positioning clamp for machining door handle

Abstract

The movable positioning clamp for machining the door handle comprises a bottom plate and the door handle to be machined, a fixed die is arranged at the top of the bottom plate, a plurality of sets of first connecting holes are formed in the bottom of the bottom plate, the first connecting holes are fixedly connected with the fixed die through screws, and the door handle is arranged at the top of the fixed die. A positioning assembly is arranged at the top of the bottom plate and comprises a movable positioning block and a fixed block, the fixed block is arranged above the bottom plate, and the movable positioning block is arranged on the fixed block; through the arrangement of the fixed block and the movable positioning block, the door handle is placed on the fixed die, one end of the door handle is in contact with the movable positioning block, then the door handle is fixed through the positioning assembly, at the moment, the movable positioning block is pulled backwards, but the surface of the door handle is still positioned with the original contact surface of the movable positioning block; in this way, the door handle positioning base face can be machined, the problem that a traditional clamp needs line drawing or measurement on a workpiece is solved, and the clamping efficiency and accuracy are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of door handle processing, and more specifically, particularly relates to a movable positioning fixture for processing door handles. Background Art

[0002] Door handles are important operating parts of doors. Their quality and processing accuracy directly affect the user experience and appearance of the door. In the processing of door handles, positioning fixtures play a very important role.

[0003] For example, the Chinese utility model patent with patent number 202021486776.6 provides a fixing fixture for producing door handles, which is provided with a base, a fixing plate, a supporting plate, a clamp and a clamp mechanism. When in use, the fixing plate and the support plate on the top of the base are used as supporting parts, and then the clamp is driven by the clamp mechanism on the support plate to fix the door handle to be processed; however, when clamping, the traditional door handle clamp has a total of four surfaces in contact with the workpiece surface and the clamp. It can only be clamped, and the front and rear directions are fixedly clamped. In the left and right directions, there is no limit on the amount of extension of the workpiece. Therefore, it is impossible to accurately locate the left or right side of the workpiece as a reference for positioning during processing; if the two end faces on the left and right of the workpiece need to be accurately processed, it is necessary to rely on drawing lines or measurements on the workpiece to locate the amount of the workpiece extending left and right on the clamp, which is inefficient and prone to errors. Utility Model Content

[0004] In order to solve the above-mentioned technical problems, the utility model provides a movable positioning fixture for processing door handles, so as to solve the technical problems in the prior art that the traditional door handle fixture has no restriction on the amount of extension of the workpiece, and cannot accurately locate the left or right side of the workpiece as a reference for positioning during processing, and needs to draw lines or measure on the workpiece, resulting in low efficiency and prone to errors.

[0005] The purpose and effect of the movable positioning fixture for processing door handles of the utility model are achieved by the following specific technical means:

[0006] A movable positioning fixture for processing a door handle comprises a base plate and a door handle to be processed, a fixed die is arranged on the top of the base plate, a plurality of groups of first connecting holes are provided at the bottom of the base plate, the plurality of groups of first connecting holes are fixedly connected to the fixed die by screws, the door handle is arranged on the top of the fixed die, a positioning assembly is provided on the top of the base plate, the positioning assembly comprises a movable positioning block and a fixed block, the fixed block is arranged above the base plate, and the movable positioning block is arranged on the fixed block.

[0007] In a preferred embodiment, two groups of second connection holes are further provided on the top of the base plate, and the two groups of second connection holes are fixedly connected to the cylinder plate by screws.

[0008] In a preferred embodiment, the positioning assembly further includes a positioning cylinder, a mounting hole is formed on the cylinder plate, and the positioning cylinder is disposed on one side of the mounting hole.

[0009] In a preferred embodiment, the positioning cylinder push rod passes through the mounting hole and is connected to a movable mold, one side of the movable mold is in contact with the fixed mold, and the door handle is located between the fixed mold and the movable mold.

[0010] In a preferred embodiment, two groups of positioning holes are correspondingly opened on the fixed mold and the movable mold, and two groups of guide rods are respectively passed through the two groups of positioning holes.

[0011] In a preferred embodiment, one side of the movable mold is fixedly connected to the fixed block by screws, a sliding groove is provided on the fixed block, one end of the movable positioning block can be slidably inserted into the sliding groove, and a limiting block is provided at the other end of the movable positioning block.

[0012] In a preferred embodiment, a clamping and fixing groove is provided on the top of the fixed mold, and the door handle is placed in the clamping and fixing groove.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. Through the setting of the fixed block and the movable positioning block, when using the positioning fixture, the door handle can be positioned and clamped by reference. Before use, push the movable positioning block forward, put the door handle into the fixed groove on the fixed mold, and make one end of the door handle contact with the movable positioning block, and then start the cylinder to clamp the door handle. At this time, the movable positioning block is pulled backward, but the surface of the door handle still maintains the positioning with the original contact surface of the movable positioning block. In this way, the equipment can be directly started to process the positioning base surface of the door handle, which solves the problem that traditional fixtures need to draw lines or measure on the workpiece, realizes fast and efficient clamping and positioning, and improves clamping accuracy.

[0015] 2. Through the setting of the positioning cylinder and the movable mold, when using the positioning fixture, the door handle can be fixed between the fixed mold and the movable mold by starting the positioning cylinder and the pushing rod of the positioning cylinder to push the movable mold, thereby improving the clamping efficiency; and by opening the fixing groove on the fixed mold, door handles of different sizes can be placed, thereby improving the applicability of the fixture. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural schematic diagram of a movable positioning fixture for processing a door handle according to the utility model;

[0017] Figure 2 This is an exploded view of a movable positioning fixture for processing a door handle according to the utility model;

[0018] Figure 3 This is a schematic structural diagram of a positioning component in a movable positioning fixture for processing a door handle according to the utility model after being assembled;

[0019] Figure 4 for Figure 3 Schematic diagram of the structure after decomposition.

[0020] In the figure, the corresponding relationship between the component names and the figure numbers is as follows:

[0021] 11. Bottom plate; 12. Door handle; 13. Fixed mold; 14. First connecting hole; 15. Second connecting hole; 16. Fixed groove; 21. Movable positioning block; 22. Fixed block; 23. Cylinder plate; 24. Positioning cylinder; 25. Mounting hole; 26. Moving mold; 27. Positioning hole; 28. Guide rod; 29. ​​Sliding groove; 30. Limit block. DETAILED DESCRIPTION

[0022] The following is a further detailed description of the implementation of the present utility model in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present utility model, but cannot be used to limit the scope of the present utility model.

[0023] Example:

[0024] As attached Figure 1 To Attachment Figure 4 As shown:

[0025] The utility model provides a movable positioning fixture for processing a door handle, comprising a base plate 11 and a door handle 12 to be processed, a fixed die 13 is arranged on the top of the base plate 11, a plurality of first connection holes 14 are opened at the bottom of the base plate 11, these first connection holes 14 are fixedly connected to the fixed die 13 by screws, so that the fixed die 13 is firmly installed on the top of the base plate 11, and the door handle 12 to be processed is arranged above the fixed die 13; in addition, a positioning component is also arranged on the top of the base plate 11, the positioning component comprises a movable positioning block 21 and a fixed block 22, the fixed block 22 is arranged above the base plate 11, and the movable positioning block 21 is arranged on the fixed block 22.

[0026] Through the setting of the fixed block 22 and the movable positioning block 21, the movable positioning block 21 is first pushed forward to allow the door handle 12 to be processed to be placed in the fixed groove 16 provided on the fixed mold 13. At this time, one end of the door handle 12 is kept in contact with the movable positioning block 21 to achieve preliminary positioning and limiting; then, the movable positioning block 21 is pulled out backward. Since the surface of the door handle 12 has maintained a certain relationship with the contact surface of the movable positioning block 21 before, the surface of the door handle 12 still maintains the original positioning relationship after the movable positioning block 21 is pulled out; this creates conditions for the subsequent direct processing of the positioning base surface of the door handle 12. Compared with the traditional fixture that needs to mark lines or measure on the workpiece, this movable positioning fixture achieves faster and more efficient clamping and positioning; at the same time, due to the auxiliary positioning of the movable positioning block 21 before processing, the positioning accuracy during processing is also improved; in short, through the forward and backward moving structure design of the movable positioning block 21, this fixture realizes fast and efficient reference positioning of the door handle 12, solves some inconveniences of the traditional method, and also improves the processing quality.

[0027] Please refer to Figure 2 , Figure 3 and Figure 4 As shown, in addition to the movable positioning block 21 and the fixed block 22, the positioning assembly also includes a cylinder plate 23 and a positioning cylinder 24. Specifically, two groups of second connecting holes 15 are opened on the top of the base plate 11. The two groups of second connecting holes 15 are fixed to the cylinder plate 23 on the base plate 11 by screws, and a mounting hole 25 is opened on the cylinder plate 23; on one side of the mounting hole 25, a positioning cylinder 24 is installed, and the thrust generated by the positioning cylinder 24 can realize the forward and backward movement of the movable positioning block 21 relative to the fixed block 22; in the positioning process, the movement of the movable positioning block 21 is driven by controlling the action of the positioning cylinder 24, thereby realizing the positioning and limiting of the door handle 12; compared with the traditional positioning method relying on manual operation, this positioning assembly driven by the positioning cylinder 24 is more automated, and can realize the standardization and repeatability of the positioning process, thereby improving the use efficiency and positioning accuracy of the entire positioning fixture.

[0028] Please refer to Figure 3 and Figure 4 As shown, the positioning cylinder 24 pushes the rod through the mounting hole 25 to be connected and fixed with the movable mold 26, and the mounting hole 25 not only ensures that the push rod can reliably transmit the thrust, but also plays a positioning role; the other side of the movable mold 26 is in relative contact with the fixed mold 13, and the door handle 12 is placed in the gap between the fixed mold 13 and the movable mold 26; the positioning cylinder 24 can be started, and the push rod of the positioning cylinder 24 pushes the movable mold 26 to fix the door handle 12 between the fixed mold 13 and the movable mold 26, thereby improving the clamping efficiency; at the same time, the fixing groove 16 on the top of the fixed mold 13 can accommodate door handles 12 of different sizes and specifications, thereby improving the application range of the positioning fixture.

[0029] Please refer to Figure 4 As shown, in addition to the above-mentioned automatic positioning mechanism, the positioning fixture is also provided with a fixed mold 13 and a movable mold 26 for auxiliary positioning; two groups of positioning holes 27 are opened at corresponding positions on the inner surfaces of the fixed mold 13 and the movable mold 26, and two groups of guide rods 28 are respectively penetrated in the two groups of positioning holes 27; one side of the movable mold 26 is fixedly connected to a fixed block 22 by screws, and a rectangular sliding groove 29 is opened on the fixed block 22, and one end of the movable positioning block 21 can be slidably penetrated in the sliding groove 29. In addition, a limit block 30 is also set at the other end of the movable positioning block 21. The function of the limit block 30 is to limit the moving range of the movable positioning block 21 to prevent it from shifting beyond the preset size during the positioning process.

[0030] Please refer to Figure 4 As shown, in order to achieve stable fixation of the door handle 12, a U-shaped clamping and fixing groove 16 is opened on the top of the fixed mold 13. The shape of the groove matches the appearance of the door handle 12, which can well fix the door handle 12 inside and is not easy to fall off.

[0031] The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A movable positioning fixture for processing a door handle, comprising a base plate (11) and a door handle to be processed (12), characterized in that: A fixed mold (13) is arranged on the top of the bottom plate (11), a plurality of groups of first connection holes (14) are provided on the bottom of the bottom plate (11), the plurality of groups of first connection holes (14) are fixedly connected to the fixed mold (13) by screws, the door handle (12) is arranged on the top of the fixed mold (13), a positioning assembly is arranged on the top of the bottom plate (11), the positioning assembly comprises a movable positioning block (21) and a fixed block (22), the fixed block (22) is arranged above the bottom plate (11), and the movable positioning block (21) is arranged on the fixed block (22).

2. The movable positioning fixture for processing a door handle according to claim 1, characterized in that: Two groups of second connection holes (15) are also provided on the top of the bottom plate (11), and the two groups of second connection holes (15) are fixedly connected to the cylinder plate (23) by means of screws.

3. The movable positioning fixture for processing a door handle according to claim 2, characterized in that: The positioning assembly also includes a positioning oil cylinder (24). A mounting hole (25) is provided on the oil cylinder plate (23), and the positioning oil cylinder (24) is arranged on one side of the mounting hole (25).

4. The movable positioning fixture for processing a door handle according to claim 3, characterized in that: The positioning oil cylinder (24) pushes the rod through the mounting hole (25) to be connected to a movable mold (26), one side of the movable mold (26) is in contact with the fixed mold (13), and the door handle (12) is located between the fixed mold (13) and the movable mold (26).

5. The movable positioning fixture for processing a door handle according to claim 4, characterized in that: Two groups of positioning holes (27) are correspondingly provided on the fixed mold (13) and the movable mold (26), and two groups of guide rods (28) are respectively passed through the two groups of positioning holes (27).

6. The movable positioning fixture for processing a door handle according to claim 5, characterized in that: One side of the movable mold (26) is fixedly connected to the fixed block (22) by means of screws, the fixed block (22) is provided with a sliding groove (29), one end of the movable positioning block (21) is slidably inserted into the sliding groove (29), and the other end of the movable positioning block (21) is provided with a limiting block (30).

7. The movable positioning fixture for processing a door handle according to claim 1, characterized in that: A clamping and fixing groove (16) is provided on the top of the fixed mold (13), and the door handle (12) is placed in the clamping and fixing groove (16).

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