A jig for machining mechanical parts

Abstract

This invention discloses a jig for machining mechanical parts, comprising a base, a first connecting plate rotatably connected to the upper end of the base, a connecting rod fixedly connected to the first connecting plate, a second connecting plate fixedly connected to the end of the connecting rod away from the first connecting plate, a third connecting plate rotatably connected to one end of the second connecting plate, a gap between the second and third connecting plates, an arc-shaped rod rotatably connected to the other end of the third connecting plate, a locking mechanism matching the arc-shaped rod fixedly connected to the second connecting plate, and multiple evenly distributed mounting holes on the third connecting plate, with several fixing structures matching the mounting holes mounted on the third connecting plate. Compared with the prior art, the jig for machining mechanical parts of this invention can adapt to different working conditions and workpiece sizes, increasing the application range of the jig, and can rotate and adjust the parts located on the jig, positioning them at an angle convenient for the operator to process.

Description

Technical Field

[0001] This invention belongs to the field of fixture technology, specifically relating to a fixture for machining mechanical parts. Background Technology

[0002] In the machining industry, fixtures are an important auxiliary tool, mainly used to fix workpieces to ensure high precision during the machining process.

[0003] While existing fixtures can meet certain machining needs, some problems have also been exposed in practical applications. First, many fixtures are relatively fixed in design and lack flexibility, making it impossible to quickly adapt to different working conditions and changes in workpiece size. This limits their application range. These fixed-design fixtures are inadequate when faced with diverse machining requirements, reducing the efficiency of operators in machining parts.

[0004] The information disclosed in this background section is intended only to enhance the understanding of the overall background of the invention and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Summary of the Invention

[0005] The purpose of this invention is to provide a fixture for machining mechanical parts, which can solve the technical problems mentioned in the background art.

[0006] To achieve the above objectives, a specific embodiment of the present invention provides the following technical solution:

[0007] A jig for machining mechanical parts includes a base, a first connecting plate rotatably connected to the upper end of the base, a connecting rod fixedly connected to the first connecting plate, a second connecting plate fixedly connected to the end of the connecting rod away from the first connecting plate, a third connecting plate rotatably connected to one end of the second connecting plate, a gap between the second and third connecting plates, an arc-shaped rod rotatably connected to the other end of the third connecting plate, a locking mechanism matching the arc-shaped rod fixedly connected to the second connecting plate, a plurality of evenly distributed mounting holes on the third connecting plate, and a plurality of fixing structures matching the mounting holes mounted on the third connecting plate.

[0008] In one or more embodiments of the present invention, the arc-shaped rod is provided with a waist hole, and the locking mechanism includes a second connecting post that matches the waist hole. The second connecting post and the second connecting plate are integrally formed. The second connecting post is provided with a second through hole, and the inner wall of the second through hole is provided with a positioning groove.

[0009] In one or more embodiments of the present invention, a connecting piece matching the second through hole is inserted into the second connecting post, and a plug matching the second through hole and the positioning groove is fixedly connected to the connecting piece. A second threaded hole is provided on the connecting piece, and a second bolt matching the second threaded hole is threadedly connected to the end of the second through hole away from the connecting piece.

[0010] In one or more embodiments of the present invention, a T-shaped groove is provided on the base, and a T-shaped connector matching the T-shaped groove is fixedly connected to the first connecting plate.

[0011] In one or more embodiments of the present invention, a plurality of evenly distributed first limiting grooves are provided on the bottom wall of the T-shaped groove, and a ball bearing that matches the first limiting groove is rotatably connected to the base.

[0012] In one or more embodiments of the present invention, a first threaded hole is provided on the bottom wall of the base, a first blind hole matching the first threaded hole is provided on the base, a first bolt matching the first threaded hole is threadedly connected to the base, and one end of the first bolt is housed in the first blind hole.

[0013] In one or more embodiments of the present invention, a pair of connecting ears are fixedly connected to one end of the second connecting plate, the pair of connecting ears are respectively located on both sides of the second connecting plate, a first through hole is provided on the connecting ear, and a first connecting post matching the first through hole is fixedly connected to the third connecting plate.

[0014] In one or more embodiments of the present invention, the arc-shaped rod is rotatably connected to the end of the third connecting plate away from the first connecting post.

[0015] In one or more embodiments of the present invention, the fixing structure includes a third connecting post, the third connecting post being threadedly connected to the mounting hole, a fourth connecting plate being fixedly connected to the upper end of the third connecting post, a third threaded hole being provided on the fourth connecting plate, and a threaded rod matching the third threaded hole being threadedly connected to the fourth connecting plate.

[0016] In one or more embodiments of the present invention, a handle is fixedly connected to the upper end of the threaded rod, a rubber block is fixedly connected to the end of the threaded rod away from the handle, and a spring is sleeved on the threaded rod, the spring being located between the fourth connecting plate and the rubber block.

[0017] Compared with the prior art, the mechanical parts processing fixture of the present invention can adapt to different working conditions and workpiece sizes, thereby increasing the application range of the mechanical parts processing fixture. It can also rotate and adjust the parts located on the fixture so that the parts are at an angle that is convenient for the operator to process, which helps to improve the efficiency of the operator in processing parts. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of a fixture for machining mechanical parts according to one embodiment of the present invention;

[0020] Figure 2 This is a partial sectional view of a fixture for machining mechanical parts according to an embodiment of the present invention;

[0021] Figure 3 for Figure 2 Schematic diagram of the structure at point A in the middle;

[0022] Figure 4 A localized explosion of a jig for machining mechanical parts in one embodiment of the present invention. Figure 1 ;

[0023] Figure 5 for Figure 4 Schematic diagram of the structure at point B;

[0024] Figure 6 A localized explosion of a jig for machining mechanical parts in one embodiment of the present invention. Figure 2 ;

[0025] Figure 7 This is an exploded view of the fixed structure in one embodiment of the present invention.

[0026] Explanation of key figure labels:

[0027] 1. Base; 101. T-shaped groove; 102. First limiting groove; 103. First threaded hole; 104. First blind hole; 2. First connecting plate; 201. Recessed groove; 3. Ball bearing; 4. First bolt; 5. T-shaped connector; 6. Connecting rod; 7. Second connecting plate; 8. Connecting ear; 801. First through hole; 9. Third connecting plate; 901. First connecting post; 902. Mounting hole; 10. Arc rod; 1001. Waist hole; 11. Second connecting post; 1101. Second through hole; 1102. Positioning groove; 12. Connecting piece; 1201. Insert connector; 1202. Second threaded hole; 13. Second bolt; 14. Fixing structure; 15. Third connecting post; 16. Fourth connecting plate; 1601. Third threaded hole; 17. Threaded rod; 1701. Handle; 18. Spring; 19. Rubber block; 20. Storage box. Detailed Implementation

[0028] To enable those skilled in the art to better understand the technical solutions of this invention, the technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this invention.

[0029] like Figures 1-2 As shown, a jig for machining mechanical parts according to one embodiment of the present invention includes a base 1, a first connecting plate 2 rotatably connected to the upper end of the base 1, a second connecting plate 7 mounted on the upper end of the first connecting plate 2, and a third connecting plate 9 rotatably connected to the upper end of the second connecting plate 7. The third connecting plate 9 has a plurality of evenly distributed mounting holes 902, and a fixing structure 14 matching the mounting holes 902 is mounted on the third connecting plate 9. By mounting a plurality of fixing structures 14 on the third connecting plate 9, the mechanical parts are clamped and fixed using the fixing structures 14, and the mechanical parts can be rotated and their tilt angle adjusted according to usage needs, so as to machine different mechanical parts.

[0030] like Figures 1-3 As shown, a T-shaped groove 101 is formed on the base 1, and a T-shaped connector 5 matching the T-shaped groove 101 is fixedly connected to the first connecting plate 2. The first connecting plate 2 is rotatably connected to the base 1 through the cooperation of the T-shaped groove 101 and the T-shaped connector 5. Multiple evenly distributed first limiting grooves 102 are formed on the bottom wall of the T-shaped groove 101, and ball bearings 3 matching the first limiting grooves 102 are rotatably connected to the base 1. By setting multiple ball bearings 3, the friction between the T-shaped connector 5 and the bottom wall of the T-shaped groove 101 is reduced, making the first connecting plate 2 rotate more smoothly and improving the user experience.

[0031] like Figures 1-2As shown, a first threaded hole 103 is provided on the bottom wall of the base 1, and a first blind hole 104 matching the first threaded hole 103 is provided on the base 1. A first bolt 4 matching the first threaded hole 103 is threadedly connected to the base 1, and one end of the first bolt 4 is housed in the first blind hole 104. When the first bolt 4 is tightened, one end face of the first bolt 4 contacts the first connecting plate 2, and is used to increase the friction between the base 1 and the first connecting plate 2, providing resistance to the rotation of the base 1 and the first connecting plate 2, so as to lock the rotational position of the base 1 and the first connecting plate 2. The locked state of the base 1 and the first connecting plate 2 can switch the state of the fixture. For example, during the grinding process, if the outer edge of the workpiece needs to be ground, the fixture needs to be rotated to achieve grinding and rotation at the same time. When it is necessary to grind the fixed part of the workpiece, the base 1 and the first connecting plate 2 can be locked so that the fixture can adapt to different working conditions.

[0032] In addition, the first bolt 4 is located at the lower end of the base 1. When the clamp is in normal use, the first bolt 4 is in a retracted state, which makes it less likely to be accidentally triggered.

[0033] like Figures 1-2 As shown, a connecting rod 6 is fixedly connected between the first connecting plate 2 and the second connecting plate 7. A recessed groove 201 is formed on the upper surface of the first connecting plate 2, and a storage box 20 is placed in the recessed groove 201. The storage box 20 can store tools used for machining mechanical parts. At the same time, it can also increase the weight of the fixture base, making the fixture more stable.

[0034] like Figures 1-2 As shown, there is a gap between the second connecting plate 7 and the third connecting plate 9. A pair of connecting ears 8 are fixedly connected to one end of the second connecting plate 7. The pair of connecting ears 8 are located on both sides of the second connecting plate 7, and a first through hole 801 is provided on the connecting ears 8. A first connecting post 901 that matches the first through hole 801 is fixedly connected to the third connecting plate 9. The third connecting plate 9 completes the rotational connection through the cooperation of the first through hole 801 and the first connecting post 901.

[0035] like Figures 4-6 As shown, an arc-shaped rod 10 is rotatably connected to the end of the third connecting plate 9 away from the first connecting post 901. A waist hole 1001 is provided on the arc-shaped rod 10. A locking mechanism matching the waist hole 1001 is fixedly connected to the second connecting plate 7. During normal use, the arc-shaped rod 10 allows the third connecting plate 9 to rotate around the first through hole 801. After being locked by the locking mechanism, the third connecting plate 9 can be tilted to a certain angle to allow the operator to process the mechanical parts.

[0036] like Figures 4-6As shown, the locking mechanism includes a second connecting post 11 that matches the waist hole 1001. The second connecting post 11 and the second connecting plate 7 are integrally formed. The second connecting post 11 has a second through hole 1101 that penetrates the second connecting plate 7. A positioning groove 1102 is formed on the inner wall of the second through hole 1101. A connecting piece 12 that matches the second through hole 1101 is inserted into the second connecting post 11. A connector 1201 that matches the second through hole 1101 and the positioning groove 1102 is fixedly connected to the connecting piece 12. A second threaded hole 1202 is formed on the connecting piece 12. A second bolt 13 that matches the second threaded hole 1202 is threadedly connected to the end of the second through hole 1101 away from the connecting piece 12.

[0037] Specifically, such as Figures 4-6 As shown, the outer diameter of the connecting piece 12 is larger than that of the waist hole 1001. Since the plug-in piece 1201 matches the positioning groove 1102 and the second through hole 1101, the plug-in piece 1201 can only move back and forth in the second through hole 1101 without rotating. This ensures that the second bolt 13 can be smoothly threadedly connected to the second threaded hole 1202, and that the connecting piece 12 and the second bolt 13 can be tightened.

[0038] Normally, the arc-shaped rods 10 are symmetrically arranged on both sides of the second connecting plate 7. When the second bolt 13 is tightened, one end of the second bolt 13 is threadedly connected to the connecting piece 12. The connecting piece 12 is in close contact with one of the arc-shaped rods 10, and the other arc-shaped rod 10 is in close contact with the second bolt 13. The connecting piece 12 and the second bolt 13 apply friction force to the arc-shaped rods 10 respectively to achieve locking after the third connecting plate 9 is tilted and rotated.

[0039] like Figure 1 , Figure 7 As shown, the fixing structure 14 includes a third connecting post 15, which is threadedly connected to the mounting hole 902. Alternatively, two nuts can be threaded onto the third connecting post 15, located at the upper and lower ends of the third connecting plate 9 respectively. The third connecting post 15 is then installed in the mounting hole 902 via these nuts. A fourth connecting plate 16 is fixedly connected to the upper end of the third connecting post 15. The fourth connecting plate 16 has a third threaded hole 1601, and a threaded rod 17 matching the third threaded hole 1601 is threaded onto the fourth connecting plate 16. By rotating the threaded rod 17, one end face of the threaded rod 17 can be moved closer to or further away from the mechanical part, thereby achieving clamping and loosening of the mechanical part.

[0040] like Figure 7As shown, a handle 1701 is fixedly connected to the upper end of the threaded rod 17, and a rubber block 19 is fixedly connected to the end of the threaded rod 17 away from the handle 1701. The rubber block 19 increases the friction between the threaded rod 17 and the mechanical parts to improve the fixing effect of the threaded rod 17. A spring 18 is sleeved on the threaded rod 17, and the spring 18 is located between the fourth connecting plate 16 and the rubber block 19. The spring 18 can increase the friction between the third threaded hole 1601 and the threaded rod 17 to reduce the possibility of the threaded rod 17 becoming loose.

[0041] Of course, the fixed structure 14 can also clamp mechanical parts in other ways.

[0042] When using the machine, the operating conditions must first be determined. If machining is required on all four sides or multiple sides of the mechanical part, the first bolt 4 should be loosened to allow rotation between the first connecting plate 2 and the base 1. Then, the mechanical part can be fixed to the third connecting plate 9 using the fixing structure 14. After machining one side, rotate the first connecting plate 2 to adjust the mechanical part to the other side and machine it. If machining multiple sides of the mechanical part is not required, the first bolt 4 can be tightened directly.

[0043] When clamping mechanical parts using the fixing structure 14, the mechanical parts are first placed at the lower end of the rubber block 19, and then the threaded rod 17 is tightened so that the rubber block 19 is in full contact with the mechanical parts, thereby achieving the purpose of fixing the mechanical parts.

[0044] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0045] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A fixture for machining mechanical parts, characterized in that, The device includes a base, a first connecting plate rotatably connected to the upper end of the base, a connecting rod fixedly connected to the first connecting plate, a second connecting plate fixedly connected to the end of the connecting rod away from the first connecting plate, a third connecting plate rotatably connected to one end of the second connecting plate, a gap between the second and third connecting plates, an arc-shaped rod rotatably connected to the other end of the third connecting plate, a locking mechanism matching the arc-shaped rod fixedly connected to the second connecting plate, and multiple evenly distributed mounting holes on the third connecting plate, along with several fixing structures matching the mounting holes. The arc-shaped rod has a waist hole, and the locking mechanism includes a second connecting post that matches the waist hole. The second connecting post and the second connecting plate are integrally formed. The second connecting post has a second through hole, and the inner wall of the second through hole has a positioning groove. A connecting piece matching the second through hole is inserted into the second connecting post. A plug matching the second through hole and the positioning groove is fixedly connected to the connecting piece. A second threaded hole is opened on the connecting piece. A second bolt matching the second threaded hole is threadedly connected to the end of the second through hole away from the connecting piece.

2. The jig for machining a mechanical part according to claim 1, wherein The base has a T-shaped groove, and a T-shaped connector that matches the T-shaped groove is fixedly connected to the first connecting plate.

3. The jig for machining a mechanical part according to claim 2, wherein The bottom wall of the T-shaped groove is provided with a plurality of evenly distributed first limiting grooves, and the base is rotatably connected with ball bearings that match the first limiting grooves.

4. The jig for machining a mechanical part according to claim 2 or 3, wherein The base has a first threaded hole on its bottom wall and a first blind hole that matches the first threaded hole. A first bolt that matches the first threaded hole is threaded onto the base, and one end of the first bolt is housed in the first blind hole.

5. The jig for machining a mechanical part according to claim 1, wherein A pair of connecting ears are fixedly connected to one end of the second connecting plate. The pair of connecting ears are located on both sides of the second connecting plate. A first through hole is opened on the connecting ear. A first connecting post that matches the first through hole is fixedly connected to the third connecting plate.

6. The jig for machining a mechanical part according to claim 5, wherein The arc-shaped rod is rotatably connected to the end of the third connecting plate away from the first connecting post.

7. The jig for machining a mechanical part according to claim 1, wherein The fixing structure includes a third connecting column, which is threadedly connected to the mounting hole. A fourth connecting plate is fixedly connected to the upper end of the third connecting column. A third threaded hole is provided on the fourth connecting plate, and a threaded rod matching the third threaded hole is threadedly connected to the fourth connecting plate.

8. The jig for machining a mechanical part according to claim 7, wherein A handle is fixedly connected to the upper end of the threaded rod, and a rubber block is fixedly connected to the end of the threaded rod away from the handle. A spring is sleeved on the threaded rod, and the spring is located between the fourth connecting plate and the rubber block.

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