Workpiece clamp and workpiece machining equipment

Abstract

The utility model belongs to the technical field of machining, and particularly relates to a workpiece clamp and workpiece machining device.The workpiece clamp comprises a base, two oppositely-arranged clamping assemblies and a spiral transmission assembly, and the two clamping assemblies are arranged on the base in a sliding mode in the first direction; a clamping groove used for clamping a workpiece is formed between the two clamping assemblies. The spiral transmission assembly is used for enabling the clamping assembly to move on the base so as to adjust the width of the clamping groove. According to the workpiece clamp, the position of the clamping assembly can be fixed synchronously after the position of the clamping assembly is adjusted, the steps of disassembling and fixing the clamp are omitted, and the workpiece can be clamped and taken down more conveniently.

Description

Technical Field

[0001] This application belongs to the technical field of machining, and more specifically, relates to a workpiece fixture and a workpiece processing device. Background Art

[0002] During the process of machining robot parts using a processing device, it is usually necessary to use a fixture to fix the parts.

[0003] When using a traditional fixture to fix parts, it is usually necessary to use the cooperation of parts such as nuts and screws to fix the parts. When the parts need to be replaced, it is necessary to disassemble the fixture through a series of cumbersome and laborious operations, which brings inconvenience to the operator when replacing the parts. Summary of the Utility Model

[0004] The purpose of the embodiments of this application is to provide a workpiece fixture to solve the technical problem of insufficient convenience in the clamping operation of the workpiece fixture for the workpiece in the existing technology.

[0005] To achieve the above purpose, the technical solution adopted in this application is:

[0006] In a first aspect, a workpiece fixture is provided, including:

[0007] A base;

[0008] Two sets of oppositely arranged clamping components, the two sets of clamping components can be slidably arranged on the base along a first direction, and a clamping groove for clamping a workpiece is formed between the two sets of clamping components;

[0009] A screw drive assembly, the screw drive assembly is used to move the clamping components on the base to adjust the width of the clamping groove.

[0010] In one of the embodiments of the first aspect, the screw drive assembly is used to move the two sets of clamping components away from or close to each other on the base.

[0011] In one of the embodiments of the first aspect, both sets of clamping components are formed with threaded grooves, and the screw drive assembly includes:

[0012] A screw rod, the screw rod is rotatably arranged on the base, two threaded sections are provided on the screw rod, the thread directions of the two threaded sections are opposite, and the two sets of clamping components are sleeved on the screw rod through the threaded grooves, and the threaded grooves of the two sets of clamping components are respectively threadedly connected to the two threaded sections;

[0013] A guiding structure, the guiding structure is used to limit the movement of the clamping components along the first direction;

[0014] A limiting structure, which is used to limit the movement of the screw rod in the first direction.

[0015] In one embodiment of the first aspect, a slider is provided on the clamping assembly, and a sliding groove is provided on the base. The slider and the sliding groove are slidably matched to form the guiding structure; or,

[0016] A slider is provided on the base, and a sliding groove is provided on the clamping assembly. The slider and the sliding groove are slidably matched to form the guiding structure.

[0017] In one embodiment of the first aspect, two limiting flanges are provided on the circumferential side of the screw rod, and a limiting block is provided on the base. Both sides of the limiting block are respectively abutted against the two limiting flanges to form the limiting structure.

[0018] In one embodiment of the first aspect, a positioning groove is provided on the base, and the limiting block has a positioning protrusion, and the positioning protrusion can be placed into the positioning groove.

[0019] In one embodiment of the first aspect, a hexagonal structure is provided at the end of the screw rod.

[0020] In one embodiment of the first aspect, an anti-slip structure for abutting against the circumferential side of the workpiece is provided at the notch of the clamping groove.

[0021] In one embodiment of the first aspect, concave and convex teeth are provided at the notch of the clamping groove to form the anti-slip structure.

[0022] The second aspect provides a workpiece processing device, including the workpiece fixture as described above.

[0023] Compared with the prior art, the beneficial effects of the workpiece fixture and the workpiece processing device provided by the present application are as follows:

[0024] For the workpiece fixture of the present application, while realizing the movement of the clamping assembly by using the screw drive assembly, it can also realize the self-locking function, that is, locking the position of the clamping assembly synchronously after adjusting the position of the clamping assembly, saving the steps of disassembling and fixing the fixture, and improving the use convenience of the workpiece fixture.

[0025] For the workpiece processing device of the present application, by using the workpiece fixture provided by the embodiments of the present application, the convenience of clamping the workpiece is improved, and thus the processing efficiency is improved. Description of the Drawings

[0026] To more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the accompanying drawings required in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can be obtained based on these drawings.

[0027] Figure 1 Schematic diagram of the three-dimensional structure of the workpiece fixture provided by the embodiment of the present application;

[0028] Figure 2 Exploded structure diagram of the clamping component and the base provided by the embodiment of the present application;

[0029] Figure 3 Exploded structure diagram of the limiting block and the base provided by the embodiment of the present application.

[0030] Among them, the reference numerals in the figure are as follows:

[0031] 100 - workpiece;

[0032] 1 - base; 2 - clamping component; 3 - screw drive component; 4 - clamping groove;

[0033] 10 - sliding groove; 11 - installation groove; 12 - limiting block; 120 - sleeve groove; 121 - positioning protrusion; 13 - positioning groove;

[0034] 20 - clamping member; 200 - concave-convex teeth; 21 - drive fitting; 210 - thread groove; 211 - slider;

[0035] 30 - screw; 300 - threaded section; 301 - limiting flange. Detailed implementation manners

[0036] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application clearer, the following further details the present application in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0037] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0038] It should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0039] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, "a plurality of" means two or more unless otherwise specifically defined.

[0040] Please refer to Figure 1 and Figure 2 to describe the workpiece fixture provided by the embodiment of the present application.

[0041] The workpiece fixture includes a base 1, two sets of oppositely arranged clamping components 2, and a screw drive assembly 3. The two sets of clamping components 2 are slidably arranged on the base 1 along a first direction, and a clamping groove 4 for clamping the workpiece 100 is formed between the two sets of clamping components 2. The screw drive assembly 3 is used to move the clamping components 2 on the base 1 to adjust the width of the clamping groove 4.

[0042] During use, by driving the screw drive assembly 3, the clamping components 2 are moved on the base 1, so that the relative positions of the two sets of clamping components 2 can be adjusted, thereby adjusting the width of the clamping groove 4, and further clamping or loosening the workpiece 100.

[0043] Compared with the prior art, the workpiece fixture provided by the present application can realize the self-locking function while using the screw drive assembly 3 to move the clamping components 2, that is, the position of the clamping components 2 is synchronously locked after adjusting the position of the clamping components 2, eliminating the steps of disassembling and fixing the workpiece fixture, and improving the convenience of using the workpiece fixture.

[0044] Furthermore, the driving mode of the screw drive assembly 3 can be manual driving, electric driving or pneumatic driving.

[0045] Furthermore, the screw drive assembly 3 can be set to only adjust the position of one of the clamping components 2, or the screw drive assembly 3 can be set to adjust the positions of the two sets of clamping components 2. The latter setting method can make the adjustment of the fixture more flexible.

[0046] In another embodiment of the present application, please continue to refer to Figure 1 andFigure 2 The screw drive assembly 3 is used to move two sets of clamping assemblies 2 away from or towards each other on the base 1.

[0047] The screw drive assembly 3 can simultaneously move two sets of clamping assemblies 2 away from or towards each other on the base 1. On the one hand, it is convenient for the workpiece fixture to clamp or release the workpiece 100. On the other hand, it can control the clamping position of the workpiece 100 to be centered, thus facilitating the accurate positioning of the machining position of the workpiece 100.

[0048] In another embodiment of the present application, the structures of the two sets of clamping assemblies 2 are the same or similar. Specifically, please refer to Figure 2 In some embodiments, the clamping assembly 2 includes a clamping member 20 and a transmission mating member 21. The clamping members 20 of the two sets of clamping assemblies 2 cooperate to clamp the workpiece 100. The transmission mating member 21 is used to cooperate with the screw drive assembly 3 to achieve movement. The clamping member 20 is fixedly connected to the transmission mating member 21.

[0049] Among them, the fixing method of the clamping member 20 and the transmission mating member 21 includes but is not limited to bolt fixing, welding fixing, integral molding fixing, etc.

[0050] The aforementioned clamping groove 4 is formed by the cooperation of two clamping members 20 in the two sets of clamping assemblies 2.

[0051] In another embodiment of the present application, please refer to Figure 1 and Figure 2 Both sets of clamping assemblies 2 are formed with threaded grooves 210. Specifically, the threaded grooves 210 are formed on the transmission mating members 21 in the clamping assemblies 2. The screw drive assembly 3 includes a screw 30, a guiding structure and a limiting structure. The screw 30 is rotatably arranged on the base 1. There are two threaded sections 300 on the screw 30, and the thread directions of the two threaded sections 300 are opposite. Both sets of clamping assemblies 2 are sleeved on the screw 30 through the threaded grooves 210, and the threaded grooves 210 of the two sets of clamping assemblies 2 are respectively threadedly connected to the two threaded sections 300. The guiding structure is used to limit the movement of the clamping assembly 2 in the first direction. The limiting structure is used to restrict the movement of the screw 30 in the first direction.

[0052] When the screw 30 is rotated, the limiting structure causes the screw 30 to only rotate and not move linearly in the first direction, and the guiding structure causes the clamping assembly 2 not to rotate with the screw 30 but to move in the first direction, thereby realizing the conversion of the rotary motion of the screw 30 into the linear motion of the clamping assembly 2.

[0053] When clamping the workpiece 100, place the workpiece 100 in the clamping groove 4, rotate the screw 30, and the two sets of clamping assemblies 2 move closer to each other until the clamping members 20 of the two sets of clamping assemblies 2 tightly press the workpiece 100.

[0054] When removing the workpiece 100, reverse the screw 30, the two clamping assemblies 2 move away from each other, and the workpiece 100 is removed from the clamping groove 4.

[0055] In another embodiment of the present application, the clamping member 20 is provided with scales on the side perpendicular to the first direction. In the direction perpendicular to the first direction, the scales can facilitate the accurate positioning of the workpiece 100 in the clamping groove 4. At the same time, since the moving distances of the two clamping members 20 are always the same during the process of adjusting the movement of the clamping member 20 by rotating the screw 30, the workpiece 100 can be clamped in the center. Therefore, the workpiece fixture provided by the embodiment of the present application can achieve repeated and accurate positioning of the workpiece 100.

[0056] In another embodiment of the present application, please refer to Figure 2 , the clamping assembly 2 is provided with a slider 211, and the base 1 is provided with a chute 10. The slider 211 and the chute 10 are slidably matched to form a guiding structure.

[0057] Alternatively, in some other embodiments, the base 1 is provided with a slider 211, and the clamping assembly 2 is provided with a chute 10. The slider 211 and the chute 10 are slidably matched to form a guiding structure.

[0058] Exemplarily, when the clamping assembly 2 is provided with a slider 211 and the base 1 is provided with a chute 10. Specifically, both sides of the surface of the base 1 close to the clamping assembly 2 are provided with bumps, the two bumps are oppositely arranged, each bump is fixedly connected with a mating seat, and an installation groove 11 is formed between the two bumps and the two mating seats. The installation groove 11 can accommodate the transmission fitting 21 of the clamping assembly 2. The mating seat is provided with a notch on the side close to the corresponding bump, so that the mating seat and the corresponding bump cooperate to form the chute 10. The length direction of the chute 10 is the first direction. The two sides of the transmission fitting 21 are provided with the protruding sliders 211. The two sliders 211 are respectively placed in the two chutes 10, and the slider 211 can slide in the chute 10 along the first direction, so as to provide a guiding function.

[0059] When installing the structure, first put the transmission fitting 21 on the screw 30, and align the slider 211 on the transmission fitting 21 with the chute 10 of the base 1 and place it into the installation groove 11 of the base 1.

[0060] In another embodiment of the present application, please refer to Figure 3 , two limiting flanges 301 are provided on the circumference of the screw 30, and a limiting block 12 is provided on the base 1. The two sides of the limiting block 12 are respectively abutted against the two limiting flanges 301 to form a limiting structure.

[0061] Specifically, the two limiting flanges 301 are arranged around the circumference of the screw rod 30, and the two limiting flanges 301 are spaced apart and arranged side by side along the first direction. The width of the limiting block 12 in the first direction is equal to the width of the interval between the two limiting flanges 301. A sleeve groove 120 is provided at one end of the limiting block 12, so that the limiting block 12 can be sleeved on the screw rod 30, and at the same time, the limiting block 12 is abutted and limited by the two limiting flanges 301.

[0062] It should be supplemented that the two limiting flanges 301 are arranged at the middle position of the screw rod 30 , and the two threaded sections 300 mentioned above are respectively located on the outer sides of the two limiting flanges 301 .

[0063] In another embodiment of the present application, please continue to refer to Figure 3 The base 1 is provided with a positioning groove 13 , and the limiting block 12 has a positioning protrusion 121 , which can be placed in the positioning groove 13 .

[0064] The position of the limiting block 12 in the first direction can be limited by the cooperation between the positioning protrusion 121 and the positioning groove 13 .

[0065] Specifically, positioning grooves 13 are provided on the groove walls on both sides of the installation groove 11, and positioning protrusions 121 are provided on both sides of the limit block 12. When the limit block 12 is placed in the installation groove 11, the positioning protrusions 121 are placed in the positioning grooves 13. This arrangement can not only limit the movement of the limit block 12, but also position the installation position of the limit block 12, thereby ensuring the installation position of the limit block 12 and even the screw rod 30.

[0066] Furthermore, in the first direction, the positioning groove 13 is located at the middle position of the base 1 , so as to facilitate controlling the workpiece clamp to clamp the workpiece 100 at the middle position.

[0067] In addition, the limiting block 12 is fixedly connected to the base 1. By fixing the limiting block 12 to the base 1, it is possible to prevent the movement of the limiting block 12 from causing the limiting effect on the screw rod 30 to be lost.

[0068] The fixing methods of the limit block 12 and the base 1 include but are not limited to bolt fixing, adhesive fixing, clamping fixing, etc.

[0069] When installing the limit block 12, place the limit block 12 into the installation groove 11 of the base 1 along the slide groove 10 until the positioning protrusion 121 of the limit block 12 is aligned with the positioning groove 13 and placed in the positioning groove 13. At the same time, the limit block 12 is located between the two limit flanges 301 of the screw rod 30, and the limit block 12 is sleeved on the screw rod 30 through the sleeve groove 120, and then the limit block 12 is fixed to the base 1 with bolts.

[0070] In another embodiment of the present application, the end of the screw rod 30 is provided with a hexagonal structure.

[0071] The end of the screw 30 is for the operator to hold. By setting the end of the screw 30 as a hexagonal structure, the anti-slip effect can be improved, facilitating the operator to rotate the screw 30.

[0072] Hexagonal structures are provided on both ends of the screw 30, facilitating the operator to operate from any side.

[0073] In another embodiment of the present application, please refer back to Figure 1 and Figure 2 , an anti-slip structure for abutting against the side circumference of the workpiece 100 is provided at the notch of the clamping groove 4 (i.e., the clamping member 20).

[0074] By adding an anti-slip structure at the notch of the clamping groove 4, the reliability of the workpiece fixture for clamping the workpiece 100 can be improved.

[0075] In another embodiment of the present application, please continue to refer to Figure 1 and Figure 2 , concavo-convex teeth 200 are provided at the notch of the clamping groove 4 to form an anti-slip structure.

[0076] Generally, the workpiece 100 to be processed has a blank structure with a relatively high surface roughness. By providing concavo-convex teeth 200 at the notch of the clamping groove 4, the clamping friction of the clamping member 20 on the workpiece 100 can be effectively increased, and the situation of slipping and displacement is not likely to occur.

[0077] Specifically, clamping strips are provided on the surfaces of both clamping members 20, and the clamping groove 4 is formed between the two clamping strips. The concavo-convex teeth 200 are provided on the opposite side edges of the two clamping strips. When clamping the workpiece 100, the workpiece 100 is placed on the surfaces of the two clamping members 20 and between the two clamping strips, and the position of the clamping member 20 is adjusted until the two clamping strips clamp the workpiece 100. This clamping method can improve the reliability of clamping the workpiece 100.

[0078] Furthermore, the concavo-convex teeth 200 are provided on both the opposite side edges and the opposite side edges of the two clamping strips. When the bottom of the workpiece 100 has a groove structure, the workpiece 100 can be sleeved outside the two clamping strips, that is, the two clamping strips are placed in the groove structure of the workpiece 100, and by adjusting the clamping members 20 to move away from each other, the two clamping strips are tightened against the inner wall of the groove of the workpiece 100 to clamp the workpiece 100. When the bottom of the workpiece 100 has a convex structure, the workpiece 100 is placed on the surfaces of the two clamping members 20, and the convex structure is located between the two clamping strips, and the clamping members 20 are adjusted to move closer to each other until the two clamping strips clamp the convex structure of the workpiece 100. When the bottom of the workpiece 100 has neither a convex structure nor a groove structure, the workpiece 100 can be directly placed on the surfaces of the two clamping members 20 and between the two clamping strips, and the clamping members 20 are adjusted to move closer to each other until the two clamping strips clamp the workpiece 100. This structural setting can more flexibly perform clamping operations for different workpieces 100.

[0079] The present application also provides a workpiece processing device, and the workpiece processing device includes the workpiece fixture provided by the embodiments of the present application.

[0080] The workpiece processing device provided by the present application adopts the workpiece fixture provided by the embodiments of the present application, improves the convenience of clamping the workpiece 100, and further improves the processing efficiency.

[0081] The above are only the preferred embodiments of the present application, and are not intended to limit the present application. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A workpiece fixture, characterized in that: include: Pedestal; Two groups of clamping assemblies are arranged opposite to each other, and the two groups of clamping assemblies can be slidably arranged on the base along a first direction, and a clamping groove for clamping a workpiece is formed between the two groups of clamping assemblies; A screw transmission assembly is used to move the clamping assembly on the base to adjust the width of the clamping groove.

2. The workpiece fixture according to claim 1, characterized in that: The spiral transmission assembly is used to make the two groups of clamping assemblies move away from or approach each other on the base.

3. The workpiece clamp according to claim 2, characterized in that: The two groups of clamping assemblies are both formed with thread grooves, and the spiral transmission assembly includes: A screw rod, the screw rod is rotatably arranged on the base, the screw rod is provided with two threaded sections, the thread directions of the two threaded sections are opposite, the two groups of the clamping assemblies are sleeved on the screw rod through the thread grooves, and the thread grooves of the two groups of the clamping assemblies are respectively threadedly connected with the two threaded sections; A guide structure, wherein the guide structure is used to limit the movement of the clamping assembly along the first direction; A limiting structure, wherein the limiting structure is used to limit the movement of the screw in the first direction.

4. The workpiece clamp according to claim 3, characterized in that: The clamping assembly is provided with a slider, the base is provided with a slide groove, and the slider and the slide groove slide and cooperate to form the guide structure; or, The base is provided with a slider, the clamping assembly is provided with a slide groove, and the slider and the slide groove are slidably matched to form the guide structure.

5. The workpiece clamp according to claim 3, characterized in that: Two limiting flanges are arranged on the circumferential side of the screw rod, and a limiting block is arranged on the base. Two sides of the limiting block are respectively abutted against the two limiting flanges to form the limiting structure.

6. The workpiece clamp according to claim 5, characterized in that: The base is provided with a positioning groove, and the limit block has a positioning protrusion, and the positioning protrusion can be placed in the positioning groove.

7. The workpiece clamp according to claim 3, characterized in that: The end of the screw rod is provided with a hexagonal structure.

8. The workpiece clamp according to any one of claims 1 to 7, characterized in that: The notch of the clamping groove is provided with an anti-slip structure for abutting against the side periphery of the workpiece.

9. The workpiece clamp according to claim 8, characterized in that: The notch of the clamping groove is provided with concave and convex teeth to form the anti-slip structure.

10. A workpiece processing device, characterized in that: Comprising a workpiece clamp as described in any one of claims 1-9.

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