A clamping assembly for a brake valve spindle wire-cut lathe
By designing a clamping assembly that includes components such as a processing tube, a cutting frame, and an electric push rod, the problem of rapid and continuous stretching, feeding, and clamping during the cutting of brake valve stems on a lathe was solved, achieving efficient cutting and loading/unloading operations and improving the equipment's performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG SHENGXUAN IND &TRADE CO LTD
- Filing Date
- 2025-06-24
- Publication Date
- 2026-06-23
AI Technical Summary
The existing brake valve stem line lathe cutting clamping assembly cannot achieve rapid and continuous stretching, feeding, and clamping operations during the cutting process, and it cannot be adapted to loading and unloading, resulting in low cutting efficiency.
A clamping assembly was designed, comprising a processing tube, a cutting frame, an electric push rod, a material pulling gripper, a material sleeve, a diversion valve seat, a controlled air pump, a cutting head, and an annular airbag. The electric push rod drives the material pulling gripper to clamp the valve stem wire, and the annular airbag and diversion valve seat work in conjunction with the cutting head to achieve continuous cutting. At the same time, components such as a feed tube, a loading frame, a winding shaft seat, a sealing ring, a pull frame, and a discharge groove are set up to achieve efficient loading and unloading.
It enables stable, continuous, and tight cutting of the brake valve stem line and efficient loading and unloading operations, improving the efficiency of the cutting lathe and the practicality of the equipment.
Smart Images

Figure CN224389990U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of valve stem wire cutting technology, specifically a clamping assembly for a brake valve stem wire cutting lathe. Background Technology
[0002] The valve stem is a crucial component of a valve, used for transmission. It connects to the actuator or handle at the top and directly drives the valve core to move or rotate, thus achieving the valve's opening, closing, or regulating function. During valve opening and closing, the valve stem is not only a moving and force-bearing component but also a sealing component. Furthermore, it is subjected to the impact and corrosion of the medium and friction with the packing. Therefore, when selecting valve stem materials, it is essential to ensure that they possess sufficient strength, good impact toughness, scratch resistance, and corrosion resistance at the specified temperature. As a vulnerable component, the valve stem's machinability and heat treatment properties should also be considered when selecting materials. The valve stem line is a vital component for controlling the valve stem.
[0003] For example, patent document CN 219359081 U discloses a cutting device for producing truck brake valve stems. The top of the worktable is slidably connected to a clamping seat, and the top of the clamping seat is slidably connected to a clamping block. A pre-reserved groove is provided in the middle of the top of the clamping seat, and a threaded rod is rotatably connected inside the pre-reserved groove. One end of the threaded rod is fixedly connected to a throttle handle, and a reference ruler is fixedly connected to one side of the clamping seat. An opening groove is provided on the outer wall of the protective cover. In this invention, the brake valve stem is placed in the groove between the clamping seat and the clamping block. The desired size of the brake valve stem to be cut is marked, and then the throttle handle is rotated to rotate the threaded rod, allowing the clamping block to move along the sliding groove. When the clamping block approaches the clamping seat, it clamps the brake valve stem, effectively preventing the brake valve stem from falling off or being damaged during cutting.
[0004] However, when using this structure for actual brake valve stem wire cutting on a lathe, due to its structural limitations, it often requires only simple manual adjustment of the cutting operation. During the cutting process, it is impossible to quickly and continuously stretch and load the brake valve stem wire and clamp it securely. At the same time, the equipment cannot adapt to the loading and unloading operations of the brake valve stem wire, making it unsuitable for daily use. Therefore, there is an urgent need to design a clamping component for brake valve stem wire cutting lathes to solve the above problems. Utility Model Content
[0005] The purpose of this utility model is to provide a clamping component for a brake valve stem wire cutting lathe, in order to solve the problems mentioned in the background art. When clamping the existing structure for actual brake valve stem wire cutting on a lathe, due to its own structural limitations, it can often only use simple manual adjustment cutting operations. During the cutting process, it is impossible to quickly and continuously stretch and load the brake valve stem wire and clamp it tightly. At the same time, the equipment cannot adapt to the loading and unloading operations of the brake valve stem wire, and cannot meet the needs of daily use.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a clamping assembly for a brake valve stem wire cutting lathe, comprising a processing tube, a cutting frame fixedly connected to one end of the processing tube, an electric push rod provided at the other end of the processing tube, a collecting assembly provided at the bottom end of the processing tube, and a feeding assembly provided at one end of the cutting frame;
[0007] The collection component includes a storage rack, and the bottom end of the processing tube is fixedly connected to the storage rack;
[0008] The feeding assembly includes a feed pipe, one end of which is fixedly connected to a feeding rack.
[0009] Preferably, a take-up shaft seat is movably connected inside the feeding rack, a sealing ring is provided between the feeding rack and the take-up shaft seat, and the feeding rack is connected to the inside of the processing tube of the processing tube through the feed pipe.
[0010] Preferably, the storage rack is internally connected to a pull-out frame, the inner wall of the pull-out frame is provided with a protective inner pad, the bottom side of the pull-out frame is provided with a feeding groove, and the two ends of the feeding groove are provided with limit blocks.
[0011] Preferably, one end of the electric push rod is provided with a material pulling claw, and one end of the material pulling claw is fixedly connected to a material sleeve cover. The material pulling claw is adapted to the inner wall of the cutting frame through the material sleeve cover.
[0012] Preferably, a diversion valve seat is fixedly connected to the top of the cutting frame, and a control air pump is provided at the top of the diversion valve seat.
[0013] Preferably, a cutting head is provided at one end of the inner wall of the electric push rod, and the cutting head is connected to the diversion valve seat.
[0014] Preferably, an annular air bladder is provided at the other end of the inner wall of the electric push rod, and the annular air bladder is connected to the diversion valve seat.
[0015] Compared with the prior art, the beneficial effects of this utility model are:
[0016] The clamping assembly for this brake valve stem wire EDM lathe, through its machining tube, cutting frame, electric push rod, material pull gripper, sleeve cover, flow divider valve seat, air pump, cutting head, and annular airbag, enables the equipment to perform a more stable and continuous clamping and cutting operation on the brake valve stem wire. In actual use, the operator first activates the electric push rod at the other end of the machining tube, causing it to drive the material pull gripper and sleeve cover at one end to extend into the cutting frame along the machining tube. Then, the valve stem wire extending from the feed tube passes through the sleeve cover and enters the material pull gripper. When the material clamping jaws are activated, they clamp the valve stem wire. Then, the electric push rod retracts, allowing the valve stem wire to be quickly fed into the processing tube. Simultaneously, the air pump is activated, working with the diversion valve seat to inflate the annular air bladder. This causes the annular air bladder to clamp the valve stem wire in the center. Once both ends of the valve stem wire are secured, the air pump, in conjunction with the diversion valve seat, controls the cutting head to press down, cutting the valve stem wire inside the cutting frame. Continuous operation can efficiently cut the valve stem wire, demonstrating the practicality of the equipment design.
[0017] The clamping assembly for this brake valve stem wire cutting lathe, through its feed pipe, loading rack, take-up shaft seat, sealing ring, pull-out frame, protective inner pad, unloading groove, and limit blocks, further improves the overall efficiency of the equipment. In daily use, operators can wind the valve stem wire onto the take-up shaft seat and then attach it to the inside of the loading rack via the matching sealing ring, achieving efficient feeding of the valve stem wire. The valve stem wire cut inside the processing pipe can fall directly into the storage rack, where it is stacked and stored using the protective inner pad of the pull-out frame. Subsequently, it can be unloaded one by one from the unloading groove via the limit blocks at both ends, demonstrating the comprehensive design of the equipment. Attached Figure Description
[0018] Figure 1 This is a three-dimensional schematic diagram of the structure of this utility model;
[0019] Figure 2 This is a schematic diagram of the overall structure of the electric push rod of this utility model;
[0020] Figure 3 This is a schematic diagram of the overall structure of the cutting frame of this utility model;
[0021] Figure 4 This is a schematic diagram of the overall structure of the pull-out frame of this utility model;
[0022] Figure 5 This utility model Figure 1 An enlarged schematic diagram of the structure at point A in the middle.
[0023] In the diagram: 1. Processing tube; 2. Cutting frame; 3. Electric push rod; 4. Storage rack; 5. Feeding tube; 6. Loading rack; 7. Rewinding shaft seat; 8. Sealing ring; 9. Pulling frame; 10. Protective inner pad; 11. Discharge chute; 12. Limiting block; 13. Pulling claw; 14. Material sleeve cover; 15. Diverter valve seat; 16. Air pump; 17. Cutting head; 18. Annular airbag. 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 One embodiment provided by this utility model:
[0026] A clamping assembly for a brake valve stem wire EDM lathe includes a machining tube 1, a cutting frame 2 fixedly connected to one end of the machining tube 1, an electric push rod 3 at the other end of the machining tube 1, a collecting assembly at the bottom end of the machining tube 1, a feeding assembly at one end of the cutting frame 2, a pulling jaw 13 at one end of the electric push rod 3, a sleeve cover 14 fixedly connected to one end of the pulling jaw 13, the pulling jaw 13 fitting into the inner wall of the cutting frame 2 via the sleeve cover 14, and a diversion valve seat 15 fixedly connected to the top end of the cutting frame 2, the top end of the diversion valve seat 15 being equipped with... The controlled air pump 16 has a cutting head 17 installed at one end of the inner wall of the electric push rod 3. The cutting head 17 is connected to the diversion valve seat 15. The other end of the inner wall of the electric push rod 3 has an annular airbag 18 installed. The annular airbag 18 is connected to the diversion valve seat 15. When the controlled air pump 16 is started, it works with the diversion valve seat 15 to inflate the annular airbag 18. This causes the annular airbag 18 to clamp the valve stem line in the center. After both ends of the valve stem line are tightened, the controlled air pump 16 can work with the diversion valve seat 15 to control the cutting head 17 to press down.
[0027] The collection component includes a storage rack 4, and the feeding component includes a feed pipe 5. The bottom of the storage rack 4 is fixedly connected to the storage rack 4, and one end of the feed pipe 5 is fixedly connected to a loading rack 6. The inside of the loading rack 6 is movably connected to a take-up shaft seat 7. A sealing ring 8 is provided between the loading rack 6 and the take-up shaft seat 7. The loading rack 6 is connected to the inside of the processing pipe 1 through the feed pipe 5. The inside of the storage rack 4 is movably connected to a pull-out rack 9. The inner wall of the pull-out rack 9 is provided with a protective inner pad 10. The bottom side of the pull-out rack 9 is provided with a discharge trough 11. The two ends of the discharge trough 11 are provided with limit blocks 12. Stacked storage operation is performed through the protective inner pad 10 of the pull-out rack 9 inside the storage rack 4. At the same time, subsequent feeding operations can be performed one by one from the discharge trough 11 through the limit blocks 12 at both ends.
[0028] Working principle: During use, the operator first activates the electric push rod 3 at the other end of the processing tube 1, causing it to drive the material-pulling jaw 13 and the sleeve cover 14 to extend into the cutting frame 2 along the processing tube 1. Then, the valve stem wire extending from the feed tube 5 passes through the sleeve cover 14 and enters the material-pulling jaw 13. At this time, the material-pulling jaw 13 activates, clamping the valve stem wire. Afterwards, the electric push rod 3 retracts, quickly feeding the valve stem wire inside the processing tube 1. Simultaneously, the air pump 16 is activated, working with the diverter valve seat 15 to inflate the annular airbag 18. This causes the annular airbag 18 to perform annular clamping of the central valve stem wire. Once both ends of the valve stem wire are secured, the air pump 16, in conjunction with the diverter valve seat 15, can then be used to inflate the annular airbag 18. The flow valve seat 15 controls the cutting head 17 to press down, cutting the valve stem wire inside the cutting frame 2. Continuous operation can complete the efficient cutting of the valve stem wire. In daily use, the operator can wind the valve stem wire onto the take-up shaft seat 7, and then use the sealing ring 8 to fit and snap it into the inside of the feeding rack 6 to achieve efficient feeding of the valve stem wire. The valve stem wire cut inside the processing tube 1 can fall directly into the storage rack 4, and then be stacked and stored through the protective inner pad 10 of the pull-out rack 9 inside the storage rack 4. At the same time, it can be fed out one by one from the feeding groove 11 through the limiting blocks 12 at both ends. The above is the complete working principle of this utility model.
[0029] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A clamping assembly for a brake valve stem wire cutting lathe, comprising a machining tube (1), characterized in that: One end of the processing tube (1) is fixedly connected to a cutting frame (2), the other end of the processing tube (1) is provided with an electric push rod (3), the bottom end of the processing tube (1) is provided with a collecting component, and one end of the cutting frame (2) is provided with a feeding component. The collection component includes a storage rack (4), and the bottom end of the processing tube (1) is fixedly connected to the storage rack (4). The feeding assembly includes a feed pipe (5), one end of which is fixedly connected to a feeding rack (6).
2. The clamping assembly for a brake valve stem wire cutting lathe according to claim 1, characterized in that: The feeding rack (6) is internally connected to a take-up shaft seat (7), and a sealing ring (8) is provided between the feeding rack (6) and the take-up shaft seat (7). The feeding rack (6) is connected to the inside of the processing tube (1) of the processing tube (1) through the feed pipe (5).
3. The clamping assembly for a brake valve stem wire cutting lathe according to claim 1, characterized in that: The storage rack (4) is internally connected to a pull-out rack (9), the inner wall of the pull-out rack (9) is provided with a protective inner pad (10), and a feeding groove (11) is opened at the bottom side of the pull-out rack (9), and limit blocks (12) are provided at both ends of the feeding groove (11).
4. The clamping assembly for a brake valve stem wire cutting lathe according to claim 1, characterized in that: One end of the electric push rod (3) is provided with a material pulling claw (13), and one end of the material pulling claw (13) is fixedly connected to a material sleeve (14). The material pulling claw (13) is adapted to the inner wall of the cutting frame (2) through the material sleeve (14).
5. A clamping assembly for a brake valve stem wire cutting lathe according to claim 1, characterized in that: The top of the cutting frame (2) is fixedly connected to a diversion valve seat (15), and the top of the diversion valve seat (15) is provided with a control air pump (16).
6. A clamping assembly for a brake valve stem wire cutting lathe according to claim 5, characterized in that: The electric push rod (3) has a cutting head (17) on one end of its inner wall, and the cutting head (17) is connected to the diversion valve seat (15).
7. A clamping assembly for a brake valve stem wire cutting lathe according to claim 5, characterized in that: The other end of the inner wall of the electric push rod (3) is provided with an annular airbag (18), which is connected to the diversion valve seat (15).