Pneumatic clamping tool for inserted hob drill bit drilling
By designing a hydraulic and pneumatic telescopic rod system for a pneumatic clamping fixture, the problem of lifting toothed hobbing drill bits during drilling was solved, reducing manual labor and the risk of drill bits falling, and improving operational safety and efficiency.
Patent Information
- Application Number
- CN202520339295.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-28
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2035-02-28
AI Technical Summary
Existing pneumatic clamping fixtures for drilling with toothed hobs require workers to hold the drill bit for extended periods, resulting in arm pain and the drill bit being prone to falling and breaking.
A pneumatic clamping fixture was designed, comprising a base plate, a support assembly, a motor, a clamping plate, a pneumatic telescopic rod, and a hydraulic telescopic rod. The drill bit is lifted by the hydraulic telescopic rod and clamped by the pneumatic telescopic rod, reducing the time required for manual lifting.
This eliminates the need to hold the drill bit for extended periods, reducing the workload for workers, preventing the drill bit from falling, and improving operational safety and efficiency.
Smart Images

Figure CN223819694U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a pneumatic clamping fixture, and in particular to a pneumatic clamping fixture for drilling with toothed hobbing cutters, belonging to the field of drilling technology for toothed hobbing cutters. Background Technology
[0002] Miniature tunnel hobbing cutters, also known as ground hobbing cutters, TCI hobbing cutters, insert hobbing cutters, or ball-tooth hobbing cutters, require drilling holes during machining. Clamping fixtures are used to hold the cutters in place during drilling.
[0003] Existing pneumatic clamping fixtures for drilling with toothed hobbing cutters generally require workers to hold the drill bit for a long time until the clamping block successfully clamps the drill bit. Holding the drill bit for a long time can easily cause arm pain for workers and make the drill bit easy to fall and break. Utility Model Content
[0004] The main purpose of this utility model is to solve the problem of not being able to easily lift the drill bit, and to provide a pneumatic clamping fixture for drilling with toothed hobbing drill bits.
[0005] The objective of this utility model can be achieved by adopting the following technical solution:
[0006] A pneumatic clamping fixture for drilling with a toothed hob includes a base plate and a support assembly mounted on the base plate. A motor is mounted on the support assembly, and a clamping plate is mounted on the output end of the motor. Multiple pneumatic telescopic rods are mounted on the clamping plate, and clamping blocks are mounted on the output ends of the pneumatic telescopic rods. A movable plate is slidably mounted on the base plate, and multiple hydraulic telescopic rods are mounted on the movable plate. Lifting frames are mounted on the output ends of the hydraulic telescopic rods.
[0007] Preferably, the support assembly includes a support rod, a connecting block, and a connecting plate. The support rod is mounted on the base plate, a connecting block is mounted on one end of the support rod, and a connecting plate is mounted on the connecting block.
[0008] Preferably, a side rod is installed on the connecting plate, a support frame is installed at one end of the side rod, and the motor is installed on the support frame.
[0009] Preferably, a guide rod is installed on the base plate, and a first connecting post is installed on both sides of the movable plate. A guide ring is installed at one end of the first connecting post, and a sliding hole is opened on the guide ring to cooperate with the guide rod.
[0010] Preferably, a moving rod is installed on the top of the moving plate, a moving ring is slidably installed on the moving rod, a connecting rod is installed on the moving ring, and one end of the connecting rod is connected to the lifting frame.
[0011] Preferably, a support ring is installed on the support rod, a second connecting post is installed on the support ring, and a connecting plate is installed at one end of the second connecting post.
[0012] Preferably, a threaded rod is threadedly connected to the connecting plate, one end of which is rotatably connected to the movable plate, and the threaded rod is rotatably connected to the movable plate through a bearing.
[0013] Preferably, a throttle is installed at the other end of the threaded rod, and an anti-slip pad is installed on the throttle.
[0014] The beneficial technical effects of this utility model are as follows:
[0015] 1. The pneumatic clamping fixture for drilling with toothed hobbing cutter according to this utility model is equipped with a hydraulic telescopic rod. The hydraulic telescopic rod is activated to drive the lifting frame to move, which can facilitate the lifting of the drill bit. By setting a moving plate and sliding the moving plate, the clamping end of the drill bit can be moved into the clamping plate for clamping. This eliminates the need for workers to lift the drill bit for a long time, thus reducing the workload of workers.
[0016] 2. By setting up a pneumatic telescopic rod, the activation of the pneumatic telescopic rod can drive the clamping block to move, thereby facilitating the clamping of the drill bit. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the support frame structure of this utility model;
[0019] Figure 3 This is a schematic diagram of the motor structure of this utility model;
[0020] Figure 4 This is a schematic diagram of the movable ring structure of this utility model;
[0021] Figure 5 This is a schematic diagram of the hydraulic telescopic rod structure of this utility model;
[0022] Figure 6 This is a schematic diagram of the threaded rod structure of this utility model.
[0023] In the diagram: 1. Base plate; 2. Guide rod; 3. Guide ring; 4. First connecting column; 5. Moving plate; 6. Hydraulic telescopic rod; 7. Lifting frame; 8. Moving rod; 9. Connecting rod; 10. Moving ring; 11. Support rod; 12. Connecting block; 13. Connecting disc; 14. Support ring; 15. Second connecting column; 16. Connecting plate; 17. Threaded rod; 18. Motor; 19. Pneumatic telescopic rod; 20. Clamping block; 21. Clamping plate; 22. Throttle; 23. Support frame; 24. Side rod; 25. Bearing. Detailed Implementation
[0024] To enable those skilled in the art to understand the technical solution of this utility model more clearly, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings, but the implementation of this utility model is not limited thereto.
[0025] like Figures 1-6 As shown, the pneumatic clamping fixture for drilling with toothed hobbing cutters provided in this embodiment includes a base plate 1 and a support assembly mounted on the base plate 1. A motor 18 is mounted on the support assembly, and a clamping plate 21 is mounted on the output end of the motor 18. Multiple pneumatic telescopic rods 19 are mounted on the clamping plate 21, and clamping blocks 20 are mounted on the output ends of the pneumatic telescopic rods 19. A movable plate 5 is slidably mounted on the base plate 1, and multiple hydraulic telescopic rods 6 are mounted on the movable plate 5. A lifting frame 7 is mounted on the output end of the hydraulic telescopic rods 6. By setting up the hydraulic telescopic rods 6, the hydraulic telescopic rods 6 can drive the lifting frame 7 to move, which can facilitate the lifting of the drill bit. By setting up the movable plate 5, the sliding movable plate 5 can move the clamping end of the drill bit into the clamping plate 21 for clamping, eliminating the need for workers to lift the drill bit for a long time and reducing the workload of workers. By setting up the pneumatic telescopic rods 19, the pneumatic telescopic rods 19 can drive the clamping blocks 20 to move, which can facilitate the clamping of the drill bit.
[0026] In this embodiment, as Figure 1 and Figure 3 As shown, the support assembly includes a support rod 11, a connecting block 12, and a connecting plate 13. The support rod 11 is mounted on the base plate 1, and the connecting block 12 is mounted on one end of the support rod 11. The connecting plate 13 is mounted on the connecting block 12. By setting the support rod 11, the connecting block 12, and the connecting plate 13 to cooperate with each other, the clamping plate 21 can be easily supported. A side rod 24 is mounted on the connecting plate 13, and a support frame 23 is mounted on one end of the side rod 24. A motor 18 is mounted on the support frame 23. By setting the side rod 24 and the support frame 23 to cooperate with each other, the motor 18 can be easily supported.
[0027] In this embodiment, as Figure 1 , Figure 2 , Figure 4 , Figure 5 and Figure 6As shown, a guide rod 2 is installed on the base plate 1, and first connecting posts 4 are installed on both sides of the movable plate 5. A guide ring 3 is installed at one end of the first connecting post 4. The guide ring 3 has a sliding hole that cooperates with the guide rod 2. By setting the guide ring 3 to slide with the guide rod 2, the movable plate 5 can be easily guided and limited. A support ring 14 is installed on the support rod 11, and a second connecting post 15 is installed on the support ring 14. A connecting plate 16 is installed at one end of the second connecting post 15. By setting the support ring 14, the second connecting post 15 and the connecting plate 16 to cooperate with each other, the screw can be easily adjusted. The threaded rod 17 provides support, and the connecting plate 16 is threaded with the threaded rod 17. One end of the threaded rod 17 is rotatably connected to the moving plate 5. The threaded rod 17 is rotatably connected to the moving plate 5 through the bearing 25. By setting the threaded rod 17, rotating the threaded rod 17 can drive the moving plate 5 to move, thereby facilitating the movement of the clamping end of the drill bit into the clamping plate 21. The other end of the threaded rod 17 is equipped with a throttle 22, and an anti-slip pad is installed on the throttle 22. By setting the throttle 22, it is easy to rotate the threaded rod 17, and by setting the anti-slip pad, it is easy to increase the friction of the throttle 22.
[0028] In this embodiment, as Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, a moving rod 8 is installed on the top of the moving plate 5, a moving ring 10 is slidably installed on the moving rod 8, and a connecting rod 9 is installed on the moving ring 10. One end of the connecting rod 9 is connected to the lifting frame 7. By setting the moving ring 10 and the connecting rod 9 to cooperate with each other, the lifting frame 7 can be easily guided and limited.
[0029] In this embodiment, as Figures 1-6 As shown in the figure, the working process of the pneumatic clamping fixture for drilling with a toothed hob provided in this embodiment is as follows:
[0030] Step 1: Using the external adjustment switch, operate the two hydraulic telescopic rods 6 respectively to move the two lifting frames 7 to the working height;
[0031] Step 2: Place the drill bit on the support frame 7. The worker holds the drill bit with one hand and turns the handle 22 with the other hand to rotate the threaded rod 17, moving the clamping end of the drill bit into the clamping plate 21. The pneumatic telescopic rod 19 is activated to move the clamping block 20 to clamp the drill bit. The hydraulic telescopic rod 6 is activated to reset the support frame 7.
[0032] Step 3: Motor 18 starts and drives the drill bit to rotate, drilling holes at different positions of the drill bit through the drilling device.
[0033] In summary, in this embodiment, the pneumatic clamping fixture for drilling with a toothed hob drill bit, by setting a hydraulic telescopic rod 6, can move the lifting frame 7 when the hydraulic telescopic rod 6 is activated, which facilitates the lifting of the drill bit. By setting a moving plate 5, the clamping end of the drill bit can be moved into the clamping plate 21 for clamping by sliding the moving plate 5, eliminating the need for workers to lift the drill bit for a long time and reducing the workload of workers. By setting a pneumatic telescopic rod 19, the activation of the pneumatic telescopic rod 19 can move the clamping block 20, which facilitates the clamping of the drill bit. By setting a support rod 11, a connecting block 12 and a connecting plate 13 to cooperate with each other, the clamping plate 21 can be easily supported. By setting a side rod The 24 and the support frame 23 cooperate to facilitate the support of the motor 18. The guide ring 3 is slidably connected to the guide rod 2 to facilitate the guidance and limiting of the moving plate 5. The support ring 14, the second connecting column 15 and the connecting plate 16 cooperate to facilitate the support of the threaded rod 17. The threaded rod 17 can be rotated to move the moving plate 5, thereby facilitating the movement of the clamping end of the drill bit into the clamping plate 21. The throttle 22 facilitates the rotation of the threaded rod 17. The anti-slip pad increases the friction of the throttle 22. The moving ring 10 cooperates with the connecting rod 9 to facilitate the guidance and limiting of the lifting frame 7.
[0034] If certain terms are used in the specification and claims to refer to specific components, those skilled in the art will understand that hardware manufacturers may use different names to refer to the same component. This specification and claims do not distinguish components based on differences in name, but rather on differences in function. The term "comprising" as used throughout the specification and claims is an open-ended term and should be interpreted as "comprising but not limited to." "Approximately" means that within an acceptable margin of error, those skilled in the art can solve the technical problem and substantially achieve the technical effect within a certain margin of error.
[0035] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a product or system comprising a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a product or system. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the product or system that includes that element.
[0036] The foregoing description illustrates and describes several preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.
Claims
1. A pneumatic clamping fixture for drilling with a toothed hob, characterized in that, The system includes a base plate (1) and a support assembly mounted on the base plate (1). A motor (18) is mounted on the support assembly. A clamping plate (21) is mounted on the output end of the motor (18). A plurality of pneumatic telescopic rods (19) are mounted on the clamping plate (21). A clamping block (20) is mounted on the output end of the pneumatic telescopic rods (19). A movable plate (5) is slidably mounted on the base plate (1). A plurality of hydraulic telescopic rods (6) are mounted on the movable plate (5). A lifting frame (7) is mounted on the output end of the hydraulic telescopic rods (6).
2. The pneumatic clamping fixture for drilling with a toothed hob according to claim 1, characterized in that, The support assembly includes a support rod (11), a connecting block (12), and a connecting plate (13). The support rod (11) is installed on the base plate (1). The connecting block (12) is installed at one end of the support rod (11), and the connecting plate (13) is installed on the connecting block (12).
3. The pneumatic clamping fixture for drilling with a toothed hob according to claim 2, characterized in that, A side rod (24) is installed on the connecting plate (13), and a support frame (23) is installed at one end of the side rod (24). The motor (18) is installed on the support frame (23).
4. The pneumatic clamping fixture for drilling with a toothed hob according to claim 1, characterized in that, A guide rod (2) is installed on the base plate (1), and a first connecting post (4) is installed on both sides of the movable plate (5). A guide ring (3) is installed at one end of the first connecting post (4), and a sliding hole that cooperates with the guide rod (2) is opened on the guide ring (3).
5. The pneumatic clamping fixture for drilling with a toothed hob according to claim 1, characterized in that, A moving rod (8) is installed on the top of the moving plate (5), a moving ring (10) is slidably installed on the moving rod (8), a connecting rod (9) is installed on the moving ring (10), and one end of the connecting rod (9) is connected to the lifting frame (7).
6. The pneumatic clamping fixture for drilling with a toothed hob according to claim 3, characterized in that, A support ring (14) is installed on the support rod (11), and a second connecting post (15) is installed on the support ring (14). A connecting plate (16) is installed at one end of the second connecting post (15).
7. The pneumatic clamping fixture for drilling with a toothed hob according to claim 6, characterized in that, A threaded rod (17) is threadedly connected to the connecting plate (16). One end of the threaded rod (17) is rotatably connected to the moving plate (5). The threaded rod (17) is rotatably connected to the moving plate (5) through a bearing (25).
8. The pneumatic clamping fixture for drilling with a toothed hob according to claim 7, characterized in that, The other end of the threaded rod (17) is equipped with a throttle (22), and the throttle (22) is equipped with an anti-slip pad.