Clamp for machining mechanical parts

Abstract

The clamp for machining the mechanical parts comprises a bottom plate, the upper side of the bottom plate is fixedly connected with a first supporting plate and a second supporting plate, the first supporting plate is fixedly connected with an electric telescopic cylinder, the output end of the electric telescopic cylinder is fixedly connected with an empty groove block, and one side of the inner wall of the empty groove block is fixedly connected with a pressure measuring spring. And one end of the pressure measuring spring is fixedly connected with a pressed block which is in sliding fit with the empty groove block. By arranging the pressure measuring spring, the clamping ring and the observation mechanism, when the clamping ring makes contact with a part and applies pressure, if the part is made of a brittle material and is subjected to clamping force, the pressure measuring spring can correspondingly contract, the contraction degree of the pressure measuring spring reflects the clamping force, and the change of the clamping force can be visually observed through the observation mechanism; and therefore, an operator is helped to accurately regulate and control the clamping force, the fragile part is prevented from being damaged due to too large clamping force, and part displacement caused by insufficient clamping force is also avoided.

Description

Technical Field

[0001] This utility model relates to the field of parts processing fixtures, specifically a fixture for processing mechanical parts. Background Technology

[0002] Fixtures for machining mechanical parts are devices used in the mechanical manufacturing process to fix the workpiece in the correct position so that it can be smoothly processed or inspected. They are also called clamps. In a broad sense, any device that can quickly, conveniently and safely install workpieces in any step of the process falls into the category of fixtures. For example, in the daily assembly of parts, fixtures are usually used to fix the main part so that the small parts can be installed on the main part.

[0003] A search revealed Chinese patent application CN202323299516.4, which discloses a jig for machining mechanical parts. The jig includes a base plate, a support base, a vertical block, a clamping mechanism, and a connecting mechanism. The support base is located at the bottom of the base plate, and several support bases are provided. The bottom of the vertical block is fixedly connected to the top of the base plate. The clamping mechanism is connected to the clamping mechanism via the connecting mechanism. The clamping mechanism includes a hydraulic component and a clamping plate, with the clamping plate mounted on the hydraulic component. The connecting mechanism includes a slot, a clamping block, a hinge assembly, a movable block, a groove, a long plate, a bearing, a rotating plate, and a through groove. The slot is formed on the vertical block, and the clamping block is located in the slot. The hydraulic component is located at one end of the clamping block, and the hinge assembly is located at the other end of the clamping block. This utility model, a jig for machining mechanical parts, solves the problem of inconvenient disassembly of current equipment.

[0004] Regarding the aforementioned technologies, the inventors have discovered the following drawbacks: While the existing technologies enable disassembly and maintenance of the clamping mechanism, in actual use, the clamping force is often uncontrollable. When clamping fragile parts, such as ceramics or plastics, or parts with coatings or platings, excessive force can damage the surface or the entire part. Furthermore, during workpiece cutting, insufficient clamping can lead to displacement of some parts. Consequently, the inability to precisely control the clamping force necessitates constant adjustments by the operator, increasing operating time and labor intensity. Therefore, designing a highly practical and adjustable clamping force fixture for machining mechanical parts is essential. Utility Model Content

[0005] The purpose of this utility model is to provide a fixture for machining mechanical parts to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a jig for machining mechanical parts, including a base plate, a first support plate and a second support plate fixedly connected to the upper side of the base plate, an electric telescopic cylinder fixedly connected to the first support plate, a slotted block fixedly connected to the output end of the electric telescopic cylinder, a pressure-measuring spring fixedly connected to one side of the inner wall of the slotted block, a pressure-receiving block that slides with the slotted block fixedly connected to one end of the pressure-measuring spring, a clamping ring rotatably fitted to one side of the pressure-receiving block, an observation mechanism provided on the upper side of the slotted block, and a force-bearing component provided on one side of the inner wall of the slotted block;

[0007] The inner wall of the second support plate is provided with a driving cavity, and a rotating opening is provided on one side of the inner wall of the driving cavity. A force-receiving ring is rotatably fitted on the inner wall of the rotating opening, and an adjustment component that cooperates with the force-receiving ring is provided on the inner wall of the driving cavity.

[0008] According to the above technical solution, the observation mechanism includes a guide opening on the upper side of the inner wall of the empty slot block, an indicator block that slides on the inner wall of the guide opening and is fixedly connected to the pressure block, and a pressure line that is disposed on the upper side of the empty slot block and cooperates with the indicator block.

[0009] According to the above technical solution, the force-bearing component includes a bearing ring fixedly connected to one side of the inner wall of the hollow groove block and a rubber pad fixedly connected to one side of the bearing ring, wherein the rubber pad and the pressure block cooperate with each other.

[0010] According to the above technical solution, the adjustment component includes a worm gear fixedly connected to the force ring and a worm rotatably engaged with one side of the inner wall of the drive cavity, wherein the worm and the worm gear mesh with each other.

[0011] According to the above technical solution, an inspection port is provided on one side of the empty slot block, and a sealing block that cooperates with the inspection port is provided on one side of the empty slot block.

[0012] According to the above technical solution, a U-shaped block is fixedly connected to the lower side of the base plate, a cylinder is fixedly connected to the lower side of the inner wall of the U-shaped block, a top pressure groove is opened on the upper side of the base plate, and a top pressure block that is fixedly connected to the output end of the cylinder is slidably fitted to the inner wall of the top pressure groove.

[0013] According to the above technical solution, one end of the worm extends to one side of the second support plate and is rotatably engaged, and one end of the worm is fixedly connected to a rotating disk.

[0014] According to the above technical solution, a guide rod that slides with the first support plate is fixedly connected to one side of the hollow slot block.

[0015] 1. This utility model, by setting up a pressure-measuring spring, a clamping ring, and an observation mechanism, enables the pressure-measuring spring to contract accordingly when the clamping ring contacts the part and applies pressure. If the part is a brittle material, the pressure-measuring spring will contract accordingly after being subjected to clamping force. The degree of contraction of the pressure-measuring spring reflects the magnitude of the clamping force. The observation mechanism allows for a direct view of the change in clamping force, thereby helping operators to accurately control the clamping force, preventing damage to brittle parts due to excessive clamping force, and also avoiding displacement of parts due to insufficient clamping force.

[0016] 2. This utility model, by setting an adjustment component, allows the worm gear to rotate and drive the worm wheel to rotate when installing the corresponding workpiece. The worm wheel then drives the force ring to flip, thereby achieving rapid flipping of the clamped parts. When assembling multiple sides of a mechanical part, the assembly surface is rotated to face the personnel, avoiding the process and time of disassembly and re-clamping, thus improving efficiency. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the overall three-dimensional cross-sectional structure of this utility model;

[0020] Figure 3 This is a utility model Figure 2 A schematic diagram of the enlarged structure at point A in the middle;

[0021] Figure 4 This is a schematic diagram of the three-dimensional cross-section of the second support plate of this utility model;

[0022] Figure 5 This is a schematic diagram of the first support plate connection structure of this utility model;

[0023] In the diagram: 1. Base plate; 2. First support plate; 3. Second support plate; 4. Electric telescopic cylinder; 5. Empty slot block; 6. Pressure measuring spring; 8. Pressure block; 9. Clamping ring; 10. Observation mechanism; 101. Guide port; 102. Indicator block; 103. Pressure line; 11. Force-bearing component; 111. Bearing ring; 112. Rubber pad; 12. Drive cavity; 13. Rotation port; 14. Force-bearing ring; 15. Adjustment component; 151. Worm gear; 152. Worm; 16. Inspection port; 17. Sealing block; 18. U-shaped block; 19. Cylinder; 20. Top pressure groove; 21. Top pressure block; 22. Rotating disk; 23. Guide rod. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-5 The present invention provides a technical solution: a jig for machining mechanical parts, including a base plate 1, a first support plate 2 and a second support plate 3 fixedly connected to the upper side of the base plate 1, an electric telescopic cylinder 4 fixedly connected to the first support plate 2, a slotted block 5 fixedly connected to the output end of the electric telescopic cylinder 4, a pressure measuring spring 6 fixedly connected to one side of the inner wall of the slotted block 5, a pressure receiving block 8 that slides with the slotted block 5 fixedly connected to one end of the pressure measuring spring 6, a clamping ring 9 rotatably connected to one side of the pressure receiving block 8, an observation mechanism 10 provided on the upper side of the slotted block 5, and a force receiving component 11 provided on one side of the inner wall of the slotted block 5;

[0026] The inner wall of the second support plate 3 is provided with a driving cavity 12, and a rotating port 13 is provided on one side of the inner wall of the driving cavity 12. A force-receiving ring 14 is rotatably fitted on the inner wall of the rotating port 13, and an adjustment component 15 that cooperates with the force-receiving ring 14 is provided on the inner wall of the driving cavity 12.

[0027] Please see Figure 3 The observation mechanism 10 includes a guide port 101 opened on the upper side of the inner wall of the empty slot block 5, an indicator block 102 that is slidably fitted on the inner wall of the guide port 101 and fixedly connected to the pressure block 8, and a pressure line 103 set on the upper side of the empty slot block 5 and cooperating with the indicator block 102. When the pressure block 8 is squeezed against the pressure measuring spring 6, the indicator block 102 will limit the pressure block 8 and move synchronously. The corresponding position between the indicator block 102 and the pressure line 103 can be calculated so that personnel can know the pressure generated after squeezing, which is convenient for personnel to judge.

[0028] Please see Figure 2 and Figure 5 The force-bearing component 11 includes a bearing ring 111 fixedly connected to one side of the inner wall of the slot block 5 and a rubber pad 112 fixedly connected to one side of the bearing ring 111. The rubber pad 112 and the pressure block 8 cooperate with each other. When clamping a workpiece with relatively high strength, the pressure block 8 can be continuously squeezed to make the pressure block 8 abut against the bearing ring 111 and the rubber pad 112, so that the pressure spring 6 is no longer under force, thereby improving the stability of clamping high-strength materials.

[0029] Please see Figure 2 and Figure 4The adjustment component 15 includes a worm gear 151 fixedly connected to the force ring 14 and a worm 152 rotatably engaged with one side of the inner wall of the drive cavity 12. The worm 152 and the worm gear 151 mesh with each other. By rotating the worm gear 152, the worm gear 151 can be driven to rotate. The worm gear 151 can drive the force ring 14 to rotate. The force ring 14 drives the clamped workpiece to flip, thereby changing the angle of the clamped part. For example, the original position facing downwards can be moved to face the assembly personnel, improving the convenience of assembling the workpiece from multiple angles.

[0030] Please see Figure 5 An inspection port 16 is provided on one side of the empty slot block 5, and a sealing block 17 that cooperates with the inspection port 16 is provided on one side of the empty slot block 5. The pressure spring 6 can be easily replaced through the inspection port 16, and the sealing block 17 can protect the inspection port 16 under normal circumstances.

[0031] Please see Figure 2 A U-shaped block 18 is fixedly connected to the lower side of the base plate 1, and a cylinder 19 is fixedly connected to the lower side of the inner wall of the U-shaped block 18. A top pressure groove 20 is opened on the upper side of the base plate 1. A top pressure block 21, which is fixedly connected to the output end of the cylinder 19, slides on the inner wall of the top pressure groove 20. When processing some materials that do not need to be flipped, the cylinder 19 can press the top pressure block 21 to support the bottom of the material. The height of the workpiece can be adjusted by pressing the cylinder 19 at different lengths. When the workpiece is assembled and clamped, the top pressure block 21 is stored in the top pressure groove 20 and will not affect it.

[0032] Please see Figure 1 One end of the worm gear 152 extends to one side of the second support plate 3 and is rotatably engaged. One end of the worm gear 152 is fixedly connected to a rotating disk 22, which allows personnel to easily operate the worm gear 152.

[0033] Please see Figure 1 and Figure 2 A guide rod 23 that slides with the first support plate 2 is fixedly connected to one side of the empty slot block 5. When the empty slot block 5 moves, the guide rod 23 will slide inside the first support plate 2, thereby guiding the empty slot block 5 and improving the stability when the electric telescopic cylinder 4 pushes the empty slot block 5 to move.

[0034] The implementation principle of this application is as follows: When using this device, if material clamping is required, the corresponding components can be placed between the clamping ring 9 and the force-bearing ring 14. By activating the electric telescopic cylinder 4 to squeeze the empty slot block 5, the clamping ring 9 squeezes the material, thus achieving clamping. When clamping some brittle materials, after the clamping ring 9 is subjected to the resisting force, its pressure-sensing spring 6 will retract accordingly. At the same time, it will drive the indicator block 102 to slide inside the pressure line 103 and contact the pressure line 103, thus realizing the degree of pressure exerted by the personnel on the pressure-sensing spring 6 and the resulting pressure. By judging the pressure, the clamping force can be precisely controlled, which can prevent the clamping force from being too large, such as thin-walled parts and precision instrument parts from being pressed out, deformed or damaged. It can also avoid the parts from shifting or shaking during processing due to insufficient clamping force, thus improving the part qualification rate. When clamping high-strength parts for cutting processing, the pressure block 8 can be continuously squeezed, so that the pressure block 8 is squeezed to abut against the rubber pad 112 on one side of the bearing ring 111. When passing through, the rubber pad 112 directly abuts against the pressure block 8, thereby increasing the stability of clamping high-hardness workpieces.

[0035] When installing the corresponding workpiece, the worm gear 152 can be rotated to drive the worm wheel 151 to rotate, and then the worm wheel 151 drives the force ring 14 to flip, thereby realizing the quick flipping of the clamped parts. When assembling multiple sides of mechanical parts, the assembly surface can be rotated to face the personnel, avoiding the process and time of disassembly and re-clamping, thus improving efficiency.

[0036] It should be noted that, in this document, 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. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0037] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A jig for machining a mechanical component, comprising a base plate (1), characterized in that: The upper side of the bottom plate (1) is fixedly connected with a first support plate (2) and a second support plate (3), the first support plate (2) is fixedly connected with an electric telescopic cylinder (4), the output end of the electric telescopic cylinder (4) is fixedly connected with a hollow groove block (5), one side of the inner wall of the hollow groove block (5) is fixedly connected with a pressure measuring spring (6), one end of the pressure measuring spring (6) is fixedly connected with a pressure receiving block (8) in sliding fit with the hollow groove block (5), one side of the pressure receiving block (8) is rotatably connected with a clamping ring (9), the upper side of the hollow groove block (5) is provided with an observation mechanism (10), and one side of the inner wall of the hollow groove block (5) is provided with a stress receiving assembly (11). The inner wall of the second support plate (3) is provided with a driving cavity (12), one side of the inner wall of the driving cavity (12) is provided with a rotating opening (13), the inner wall of the rotating opening (13) is rotatably connected with a stress receiving ring (14), and the inner wall of the driving cavity (12) is provided with an adjusting assembly (15) matched with the stress receiving ring (14).

2. The fixture of claim 1, wherein: The observation mechanism (10) comprises a guide opening (101) formed in the upper side of the inner wall of the hollow groove block (5), an indicating block (102) in sliding fit with the inner wall of the guide opening (101) and fixedly connected with the pressure receiving block (8), and a pressure line (103) arranged on the upper side of the hollow groove block (5) and matched with the indicating block (102).

3. The fixture of claim 1, wherein: The stress receiving assembly (11) comprises a bearing ring (111) fixedly connected to one side of the inner wall of the hollow groove block (5), and a rubber pad (112) fixedly connected to one side of the bearing ring (111), which is matched between the rubber pad (112) and the pressure receiving block (8).

4. The fixture of claim 1, wherein: The adjusting assembly (15) comprises a worm wheel (151) fixedly connected to the stress receiving ring (14), and a worm (152) rotatably connected to one side of the inner wall of the driving cavity (12), which is engaged between the worm (152) and the worm wheel (151).

5. The fixture of claim 1 wherein: One side of the hollow groove block (5) is provided with an inspection opening (16), and one side of the hollow groove block (5) is provided with a sealing block (17) matched with the inspection opening (16).

6. The fixture of claim 1 wherein: The lower side of the bottom plate (1) is fixedly connected with a U-shaped block (18), the lower side of the inner wall of the U-shaped block (18) is fixedly connected with an air cylinder (19), the upper side of the bottom plate (1) is provided with a pressing groove (20), and the inner wall of the pressing groove (20) is in sliding fit with a pressing block (21) fixedly connected with the output end of the air cylinder (19).

7. The fixture of claim 4 wherein: One end of the worm (152) extends to one side of the second support plate (3) and is rotatably connected, and one end of the worm (152) is fixedly connected with a rotating disc (22).

8. The fixture of claim 1, wherein: One side of the hollow groove block (5) is fixedly connected with a guide rod (23) in sliding fit with the first support plate (2). One side of the hollow groove block (5) is fixedly connected with a guide rod (23) in sliding fit with the first support plate (2).

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