Cam follower through hole drilling positioning tool

Abstract

The utility model relates to the technical field of cam driven piece production and processing, and discloses a cam driven piece through hole drilling positioning tool which comprises a tool body, two column bodies used for penetrating through the two ends of a driven piece are arranged on the tool body, locking pieces are arranged at the ends of the two column bodies, and the locking pieces are arranged on the tool body. A positioning block is detachably installed at the upper end of the tool body, the column body comprises a fixing sleeve, a threaded rod, a threaded sleeve, a push rod, an arc-shaped plate and an adjusting piece for controlling the threaded rod to rotate, the fixing sleeve is fixedly installed on the tool body, the threaded rod is rotatably arranged in the fixing sleeve, and the threaded sleeve is in threaded fit with the threaded rod. The utility model has the following advantages and effects: the fixing is more stable, and the punching precision is higher.

Description

Technical Field

[0001] This utility model relates to the field of cam follower manufacturing technology, and in particular to a cam follower through-hole drilling and positioning fixture. Background Technology

[0002] A cam follower is a component in a cam mechanism that obtains motion directly from the cam; during its machining process, a through hole is drilled on the side of the follower.

[0003] In existing technologies, cam followers are typically fixed using positioning fixtures. These fixtures are secured at both ends by fastening screws on both sides. However, the diameter of the fastening screws is a fixed size. When the diameter of the through hole drilled on the cam follower is different, stable positioning is not possible, and there is a certain amount of play. This results in poor drilling accuracy, which cannot meet the production and processing requirements. Therefore, it is necessary to propose a cam follower through hole drilling positioning fixture to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a cam follower through-hole drilling positioning fixture, which has the effect of more stable fixation and higher drilling accuracy.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a cam follower through-hole drilling and positioning fixture, comprising a fixture body, wherein two columns for penetrating both ends of the follower are provided on the fixture body, and locking components are provided at the ends of the two columns. A positioning block is detachably installed on the upper end of the fixture body. Each column includes a fixed sleeve, a threaded rod, a threaded sleeve, a push rod, an arc plate, and an adjusting component for controlling the rotation of the threaded rod. The fixed sleeve is fixedly installed on the fixture body, and the threaded rod is rotatably disposed within the fixed sleeve. The threaded sleeve and the threaded rod are threadedly matched. The push rod is disposed between the threaded sleeve and the arc plate. An opening for the movement of the arc plate is provided on the outer wall of the fixed sleeve.

[0006] By adopting the above technical solution, after the two ends of the cam follower are placed on the fixed sleeve, the threaded rod is controlled to rotate by the adjusting component, which pushes the two threaded sleeves forward and pushes the arc plate to move outward by the push rod. This allows the arc plate to fit tightly against the inner wall of the through hole of the cam follower, which can better fix it, make the positioning more stable, and make its processing accuracy higher.

[0007] A further feature of this invention is that the number of the arc-shaped plates is three and they are circumferentially distributed around the outer end of the threaded sleeve, and the outer wall of the arc-shaped plates is also provided with an anti-slip pad.

[0008] By adopting the above technical solution, the anti-slip pad can further enhance the stability of the cam follower and improve the drilling accuracy.

[0009] A further feature of this invention is that the tooling body is provided with three limiting rods at the outer periphery of the fixed sleeve, and the end of the arc-shaped plate is equipped with a sliding plate that is adapted to slide with the limiting rods.

[0010] By adopting the above technical solution, the slide plate always slides on the limit rod, so that when the threaded sleeve is pushed by the threaded rod, it can stably push the outer push rod to rotate and control the arc plate to slide outward.

[0011] A further feature of this invention is that the locking component includes a threaded post installed at the end of the fixed sleeve, and a washer and a locking nut are provided on the threaded post.

[0012] By adopting the above technical solution, after the end of the cam follower is placed on the threaded post, the locking nut is tightened so that the washer presses against the cam follower, thereby fixing it.

[0013] A further feature of this invention is that the end of the threaded rod is rotatably connected to the threaded post, and the washer is pressed against the end of the driven member by a locking nut.

[0014] By adopting the above technical solution, the threaded rod can rotate stably, thus better fixing the cam follower.

[0015] A further feature of this invention is that the adjusting component includes a fixed frame installed on the rear wall of the tooling body, a rotating rod rotatably mounted on the fixed frame, two main bevel teeth being provided on the outer side of the rotating rod, and two threaded rods having secondary bevel teeth that mesh with the main bevel teeth at the end near the fixed frame.

[0016] By adopting the above technical solution, the rotating rod is rotated, causing the two main bevel teeth to rotate synchronously. Through meshing, the two driven bevel teeth are driven to rotate, thereby causing the two threaded rods to rotate and better fixing the two ends of the cam follower.

[0017] A further feature of this invention is that a rotating handle is provided at the upper end of the rotating rod, and the ends of both threaded rods are rotatably connected to the fixing frame.

[0018] By adopting the above technical solution, holding the rotating handle makes it easier to rotate the rod and the rotation of the threaded rod more stable.

[0019] A further feature of this invention is that the positioning block is provided with a positioning hole, and the upper end of the tooling body is provided with a clamping member for fixing the positioning block.

[0020] By adopting the above technical solution, the drilling position of the cam follower is guided by the positioning hole, making drilling safer and more accurate.

[0021] A further feature of this invention is that the clamping component includes a limiting frame installed on the upper end of the tooling body, a lead screw is threaded onto the limiting frame, a pressure block is provided at the lower end of the lead screw, and two insertion rods penetrating the positioning block are provided at the bottom of the pressure block.

[0022] By adopting the above technical solution, rotating the lead screw causes the pressure block to push the two insertion rods up and down, thereby realizing the disassembly and assembly of the positioning block, and facilitating replacement when the positioning block is damaged.

[0023] A further feature of this invention is that both ends of the pressure block are equipped with limiting strips that penetrate the upper end of the limiting frame and are slidably connected thereto.

[0024] By adopting the above technical solution, the movement of the pressure block is made more stable, the positioning block is fixed more securely, and the drilling accuracy is improved.

[0025] The beneficial effects of this utility model are:

[0026] 1. In this utility model, after the two ends of the cam follower are placed on the fixed sleeve, the threaded rod is controlled to rotate by the adjusting component, which pushes the two threaded sleeves forward and pushes the arc plate to move outward by the push rod, so that the arc plate can fit tightly against the inner wall of the through hole of the cam follower, which can better fix it, make the positioning more stable, make its drilling accuracy higher, and better meet the needs of production and processing.

[0027] 2. This utility model allows for the assembly and disassembly of the positioning block by rotating the lead screw, which in turn drives the two insertion rods to rise and fall. This facilitates the replacement of the positioning block when it is damaged during long-term use, making the device more convenient to use. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is an overall structural diagram of a cam follower through-hole drilling and positioning fixture according to the present invention.

[0030] Figure 2 This is a utility model Figure 1 Rear view.

[0031] Figure 3 This is a utility model Figure 1 Internal structure diagram of the central column.

[0032] Figure 4 This is a utility model Figure 2Overall structural diagram of the intermediate clamping component.

[0033] In the diagram, 1. Tooling body; 2. Column; 21. Fixing sleeve; 22. Threaded rod; 23. Threaded sleeve; 24. Push rod; 25. Arc plate; 26. Rotating handle; 27. Anti-slip pad; 28. Limiting rod; 29. ​​Slide plate; 210. Threaded column; 211. Washer; 212. Locking nut; 213. Fixing bracket; 214. Rotating rod; 215. Main bevel gear; 216. Driven bevel gear; 3. Positioning block; 31. Positioning hole; 4. Clamping component; 41. Limiting bracket; 42. Lead screw; 43. Pressure block; 44. Limiting strip. Detailed Implementation

[0034] The technical solution of this utility model will now be clearly and completely described with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0035] like Figures 1-4 As shown, a cam follower through-hole drilling and positioning fixture includes a fixture body 1. The fixture body 1 is characterized by having two columns 2 for penetrating both ends of the follower. Each column 2 has a locking element at its end. A positioning block 3 is detachably installed on the upper end of the fixture body 1. Each column 2 includes a fixed sleeve 21, a threaded rod 22, a threaded sleeve 23, a push rod 24, an arc-shaped plate 25, and an adjusting element for controlling the rotation of the threaded rod 22. The fixed sleeve 21 is fixedly installed on the fixture body 1. The threaded rod 22 is rotatably disposed within the fixed sleeve 21. The threaded sleeve 23 is threadedly fitted to the threaded rod 22. The push rod 24 is disposed between the threaded sleeve 23 and the arc-shaped plate 25. An opening for the movement of the arc-shaped plate 25 is provided on the outer wall of the fixed sleeve 21.

[0036] Furthermore, the number of the arc-shaped plates 25 is three and they are circumferentially distributed on the outer end of the threaded sleeve 23, and the outer wall of the arc-shaped plates 25 is also provided with anti-slip pads 27.

[0037] Furthermore, the tooling body 1 is provided with three limiting rods 28 on the outer periphery of the fixed sleeve 21, and the end of the arc plate 25 is equipped with a sliding plate 29 that is adapted to slide with the limiting rods 28.

[0038] Furthermore, the locking component includes a threaded post 210 installed at the end of the fixed sleeve 21, and a washer 211 and a locking nut 212 are provided on the threaded post 210.

[0039] Furthermore, the end of the threaded rod 22 is rotatably connected to the threaded post 210, and the washer 211 is pressed against the end of the driven member by the locking nut 212.

[0040] Furthermore, the adjusting component includes a fixed frame 213 mounted on the rear wall of the tooling body 1. A rotating rod 214 is rotatably mounted on the fixed frame 213. Two main bevel teeth 215 are provided on the outer side of the rotating rod 214. Both threaded rods 22 are provided with secondary bevel teeth 216 that mesh with the main bevel teeth 215 at one end near the fixed frame 213.

[0041] Furthermore, a rotating handle 26 is provided at the upper end of the rotating rod 214, and the ends of the two threaded rods 22 are rotatably connected to the fixed frame 213.

[0042] Furthermore, the positioning block 3 is provided with a positioning hole 31, and the upper end of the tooling body 1 is provided with a clamping member 4 for fixing the positioning block 3.

[0043] Furthermore, the clamping component 4 includes a limiting frame 41 installed on the upper end of the tooling body 1. A lead screw 42 is threaded on the limiting frame 41. A pressure block 43 is provided at the lower end of the lead screw 42. Two insertion rods 44 penetrating the positioning block 3 are provided at the bottom of the pressure block 43.

[0044] Furthermore, both ends of the pressure block 43 are equipped with limiting strips 45 that penetrate the upper end of the limiting frame 41 and are slidably connected thereto.

[0045] The working principle of this utility model is as follows: After placing both ends of the cam follower on the fixed sleeve 21, the two threaded rods 22 are rotated by rotating the rotating rod 214, and the meshing of the main bevel tooth 215 and the driven bevel tooth 216 controls the rotation of the two threaded rods 22, pushing the two threaded sleeves 23 forward, and pushing the arc plate 25 outward by the push rod 24, so that the arc plate 25 can fit tightly against the inner wall of the through hole of the cam follower, and fix the cam follower firmly.

Claims

1. A cam follower through hole drilling positioning tool comprising a tool body (1) characterised in that: Two columns (2) are arranged on the tool body (1) for penetrating both ends of the driven member, the ends of the two columns (2) are provided with locking members, the upper end of the tool body (1) is detachably provided with a positioning block (3), the column (2) comprises a fixed sleeve (21), a threaded rod (22), a threaded sleeve (23), a push rod (24), an arc plate (25) and an adjusting member for controlling the rotation of the threaded rod (22), the fixed sleeve (21) is fixedly installed on the tool body (1), the threaded rod (22) is rotatably arranged in the fixed sleeve (21), the threaded sleeve (23) is threadedly matched with the threaded rod (22), the push rod (24) is arranged between the threaded sleeve (23) and the arc plate (25), and an opening for the movement of the arc plate (25) is formed in the outer wall of the fixed sleeve (21).

2. The cam follower through hole drilling and positioning fixture of claim 1 wherein: The number of the arc plates (25) is three and they are circumferentially distributed at the outer end of the threaded sleeve (23), and the outer wall of the arc plate (25) is further provided with a non-slip pad (27).

3. The cam follower bore positioning fixture of claim 2 wherein: The tool body (1) is further provided with three limiting rods (28) at the outer periphery of the fixed sleeve (21), and the end of the arc plate (25) is provided with a sliding plate (29) which is slidably matched with the limiting rod (28).

4. The cam follower bore positioning fixture of claim 3 wherein: The locking member comprises a threaded column (210) installed at the end of the fixed sleeve (21), and the threaded column (210) is provided with a gasket (211) and a locking nut (212).

5. The cam follower bore positioning fixture of claim 4 wherein: The end of the threaded rod (22) is rotatably connected with the threaded column (210), and the gasket (211) is pressed against the end of the driven member by the locking nut (212).

6. The cam follower bore positioning fixture of claim 5 wherein: The adjusting member comprises a fixed frame (213) installed on the rear wall of the tool body (1), a rotating rod (214) is rotatably arranged on the fixed frame (213), two main bevel gears (215) are arranged on the outer side of the rotating rod (214), and each of the two threaded rods (22) is provided with a slave bevel gear (216) which is meshed with the main bevel gear (215) at one end close to the fixed frame (213).

7. The cam follower bore positioning fixture of claim 6 wherein: The upper end of the rotating rod (214) is provided with a rotating handle (26), and the end of each of the two threaded rods (22) is rotatably connected with the fixed frame (213).

8. The cam follower bore positioning fixture of claim 1 wherein: The positioning block (3) is provided with a positioning hole (31), and the upper end of the tool body (1) is provided with a pressing member (4) for fixing the positioning block (3).

9. The cam follower bore positioning fixture of claim 8 wherein: The pressing member (4) comprises a limiting frame (41) installed on the upper end of the tool body (1), a lead screw (42) is threadedly arranged on the limiting frame (41), a pressing block (43) is arranged at the lower end of the lead screw (42), and the bottom of the pressing block (43) is provided with two insertion rods (44) penetrating the positioning block (3).

10. The cam follower bore positioning fixture of claim 9, wherein: The ends of the pressing block (43) are each provided with a limiting strip (45) penetrating the upper end of the limiting frame (41) and being slidably connected therewith.

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