Shaft body end face processing tooling
By using a gear and rack meshing structure and a hydraulically driven connecting rod, stable clamping of the shaft end face machining fixture is achieved, solving the problem of shaft center position change in the existing technology and improving operational flexibility and clamping stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG HONGXU INTELLIGENT TECH CO LTD
- Filing Date
- 2025-06-05
- Publication Date
- 2026-08-04
AI Technical Summary
Existing end-face machining fixtures for shaft parts require height adjustment when clamping shafts of different sizes, as the position of the shaft center relative to the machine tool changes. This results in poor operational flexibility.
It adopts a gear and rack meshing structure, and uses a hydraulic cylinder to drive the connecting rod to move the side plate and mounting rail, so as to achieve stable clamping of the shaft by the clamping plate, keep the axis height constant, and adapt to shafts of different diameters.
It improves the operational flexibility of the tooling for machining the end face of the shaft, enabling it to clamp shafts of different diameters without adjusting the overall height, thus enhancing clamping stability and flexibility.
Smart Images
Figure CN224587543U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a shaft machining fixture, specifically a shaft end face machining fixture, and belongs to the technical field of shaft machining fixtures. Background Technology
[0002] Shafts are components mainly used to support transmission, transmit torque and bear loads. According to the different structural forms of shafts, they can generally be divided into three categories: plain shafts, stepped shafts and irregular shafts; or into solid shafts and hollow shafts. When machining shafts, the end faces of shafts need to be processed by different machining techniques.
[0003] In existing technologies, two clamping blocks are often driven to move horizontally by a drive mechanism to clamp the shaft horizontally. Some designs use a top-mounted hydraulic drive to move the upper clamping block in conjunction with the lower clamping block to clamp the shaft. When clamping shafts of different sizes, the position of the shaft's axis relative to the machine tool will change, requiring a height adjustment component or adjustment of the tool height on the machine tool, resulting in poor operational flexibility. Therefore, there is an urgent need for a shaft end face machining fixture to solve the above problems. Summary of the Invention
[0004] The purpose of this utility model is to provide a shaft end face machining fixture to solve the above problems. Since the two racks mesh on both sides of the gear, the two racks drive the guard plate to slide relative to or away from each other. The guard plate drives the mounting rail through the side plate, and the mounting rail drives the clamping plate to hold the shaft, so that the height of the shaft axis remains unchanged. This makes it easy to clamp shafts of different diameters without adjusting the overall height of the fixture, thus improving the flexibility of operation.
[0005] This utility model achieves the above-mentioned objectives through the following technical solution: a shaft end face machining fixture includes two supports, each support having a transmission component, the transmission component including a gear, the gear being rotatably mounted on the support, racks meshing on both sides of the gear, the racks being slidably connected to the support, a guard plate being mounted on the side of the rack away from the gear, a side plate being fixed on the guard plate, the same mounting rail being mounted on the two side plates with the same sliding direction, and a clamping plate being mounted on the mounting rail; connecting rods are mounted on the two side plates at the top, and a hydraulic cylinder is mounted on the bottom end of the connecting rod.
[0006] Preferably, the bottom ends of the two brackets are fixed with mounting seats, and the bottom end of the hydraulic cylinder is mounted on the mounting seats.
[0007] Preferably, in order to facilitate the protection of gears and racks, the guard plate is slidably connected to the side wall of the bracket, and the length of the guard plate is less than the length of the bracket.
[0008] Preferably, in order to make the rack slide more stably, the rack is slidably connected to the guide rod, and the two ends of the guide rod are fixed with fixing seats, which are fixed to the bracket.
[0009] Preferably, to facilitate the installation and disassembly of the clamping plate, the mounting rail is the same length as the clamping plate, the mounting rail is slidably connected to the clamping plate, the cross-section of the part of the mounting rail embedded inside the clamping plate is trapezoidal, and the mounting rail is fixed to the clamping plate by bolts.
[0010] Preferably, in order to facilitate clamping shafts of different sizes, the clamping plate is provided with a slot, and the slot is a triangular prism structure.
[0011] Preferably, in order to facilitate the inspection and maintenance of the transmission components, a maintenance plate is installed on the back of the bracket, and the maintenance plate is installed on the bracket by bolts.
[0012] The beneficial effects of this utility model are as follows: A gear is rotatably mounted on the bracket, and racks mesh on both sides of the gear. The racks are slidably connected to the bracket. A guard plate is installed on the side of the rack away from the gear, and a side plate is fixed on the guard plate. The same mounting rail is installed on the two side plates with the same sliding direction, and a clamping plate is installed on the mounting rail. A connecting rod is installed on the two side plates at the top, and a hydraulic cylinder is installed at the bottom of the connecting rod. When the hydraulic cylinder drives the connecting rod to move, the connecting rod drives the side plate connected to it to move. Since the two racks mesh on both sides of the gear, the two racks drive the guard plate to slide relative to or away from each other. The guard plate drives the mounting rail through the side plate, and the mounting rail drives the clamping plate to clamp the shaft, so that the height of the shaft axis remains unchanged. This makes it easy to clamp shafts with different diameters without adjusting the overall height of the tooling, thus improving operational flexibility. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is an overall cross-sectional view of the present invention; Figure 3 This is a schematic diagram of the transmission component of this utility model; Figure 4 This is a diagram showing the disassembled state of the inspection plate of this utility model; Figure 5 for Figure 4 The diagram shows an enlarged view of part A.
[0014] In the diagram: 1. Mounting base; 2. Bracket; 3. Hydraulic cylinder; 4. Transmission component; 401. Side plate; 402. Guard plate; 403. Rack; 404. Gear; 405. Guide rod; 406. Fixed base; 5. Mounting rail; 6. Clamping plate; 7. Groove; 8. Connecting rod; 9. Inspection plate. Detailed Implementation
[0015] 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.
[0016] Please see Figures 1-5 As shown, the machining fixture for the shaft end face includes two supports 2. Each support 2 has a transmission component 4, which includes a gear 404. The gear 404 is rotatably mounted on the support 2. A rack 403 meshes with both sides of the gear 404. The rack 403 is slidably connected to the support 2. A guard plate 402 is mounted on the side of the rack 403 opposite to the gear 404. A side plate 401 is fixed to the guard plate 402. The same mounting rail 5 is mounted on the two side plates 401 with the same sliding direction. A clamping plate 6 is mounted on the mounting rail 5. Connecting rods 8 are mounted on the two top side plates 401. A hydraulic cylinder 3 is mounted at the bottom end of the connecting rod 8. A mounting base 1 is fixed at the bottom end of the two supports 2. The bottom end of the pressure cylinder 3 is mounted on the mounting base 1; the clamping plate 6 is provided with a groove 7, which is a triangular prism structure; when clamping the shaft, the shaft is placed in the groove 7 in the clamping plate 6 at the bottom end, and then the hydraulic cylinder 3 is started. When the hydraulic cylinder 3 drives the connecting rod 8 to move downward, the connecting rod 8 drives the side plate 401 connected to it to move downward. Since the two racks 403 are meshed on both sides of the gear 404, the two racks 403 drive the guard plate 402 to slide relative to or away from each other. The guard plate 402 drives the mounting rail 5 through the side plate 401. The mounting rail 5 drives the clamping plate 6 to clamp the shaft, so that the height of the shaft axis remains unchanged, which is convenient for clamping shafts of different diameters. There is no need to adjust the overall height of the tooling, which improves the flexibility of operation.
[0017] As a technical optimization of this utility model, the guard plate 402 is slidably connected to the side wall of the bracket 2, and the length of the guard plate 402 is less than the length of the bracket 2; so that the rack 403 and the gear 404 are in a sealed space to prevent waste from affecting the transmission of the gear 404 and the rack 403; the rack 403 is slidably connected to the guide rod 405, and the two ends of the guide rod 405 are fixed with fixing seats 406, and the fixing seats 406 are fixed to the bracket 2; so that the movement of the rack 403 is more stable.
[0018] As a technical optimization of this utility model, the mounting rail 5 and the clamping plate 6 have the same length and are slidably connected; the cross-section of the part of the mounting rail 5 embedded in the clamping plate 6 is trapezoidal, and the mounting rail 5 and the clamping plate 6 are fixed by bolts; the contact area between the clamping plate 6 and the mounting rail 5 is increased, making the connection more secure.
[0019] As a technical optimization of this utility model, a maintenance plate 9 is installed on the back of the bracket 2, and the maintenance plate 9 is installed on the bracket 2 by bolts; when it is necessary to inspect and maintain the rack 403 and gear 404 on the bracket 2, the maintenance plate 9 on the back of the bracket 2 can be removed.
[0020] In use, the mounting base 1 is installed on the machine tool with bolts, so that the axis of the shaft held by the two clamping plates 6 is on the axis of the cutting tool. When it is necessary to install or remove the clamping plates 6, the bolts on the mounting rail 5 are removed, the bolts are separated from the clamping plates 6, and then the clamping plates 6 are pulled to the side to separate them from the mounting rail 5. The cross-section of the part of the mounting rail 5 that is embedded in the clamping plate 6 is trapezoidal, which increases the contact area between the clamping plates 6 and the mounting rail 5, making the connection more secure. When clamping the shaft, the shaft is placed in the slot 7 in the bottom clamping plate 6, and then the hydraulic cylinder 3 is activated. When the hydraulic cylinder 3 drives the connecting rod 8 to move downward, the connecting rod 8 drives the side plate 401 connected to it to move downward. Since the two racks 403 mesh with the gear 404, On both sides, the two racks 403 drive the guard plate 402 to slide relative to or away from each other. The racks 403 are slidably connected to the guide rod 405, making the movement of the racks 403 more stable. The guard plate 402 drives the mounting rail 5 through the side plate 401. The mounting rail 5 drives the clamping plate 6 to clamp the shaft, keeping the height of the shaft axis unchanged. This makes it easy to clamp shafts of different diameters without adjusting the overall height of the tooling, improving operational flexibility. The guard plate 402 is fixed on the rack 403. The guard plate 402 is slidably connected to the bracket 2, so that the rack 403 and the gear 404 are in a sealed space, preventing waste from affecting the transmission of the gear 404 and the rack 403. When it is necessary to inspect and maintain the rack 403 and the gear 404 on the bracket 2, the inspection plate 9 on the back of the bracket 2 can be removed.
[0021] 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.
[0022] 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 shaft body end face processing tooling, comprising two supports (2), characterized in that: The bracket (2) is provided with a transmission component (4), the transmission component (4) includes a gear (404), the bracket (2) is rotatably provided with the gear (404), the gear (404) is meshed with racks (403) on both sides, the racks (403) are slidably connected to the bracket (2), a guard plate (402) is installed on the side of the rack (403) away from the gear (404), a side plate (401) is fixed on the guard plate (402), the same mounting rail (5) is installed on the two side plates (401) with the same sliding direction, and a clamping plate (6) is installed on the mounting rail (5); top Connecting rods (8) are installed on the two side plates (401) at the end, and hydraulic cylinders (3) are installed at the bottom of the connecting rods (8); mounting seats (1) are fixed at the bottom of the two brackets (2), and the bottom of the hydraulic cylinders (3) is installed on the mounting seats (1); the guard plate (402) is slidably connected to the side wall of the bracket (2), and the length of the guard plate (402) is less than the length of the bracket (2); the rack (403) is slidably connected to the guide rod (405), and the two ends of the guide rod (405) are fixed with fixing seats (406), and the fixing seats (406) are fixed to the bracket (2).
2. The shaft end face processing tooling apparatus of claim 1, wherein: The mounting rail (5) and the clamping plate (6) are of the same length, and the mounting rail (5) and the clamping plate (6) are slidably connected.
3. The shaft end face processing tooling apparatus of claim 1, wherein: The cross-section of the part of the mounting rail (5) embedded inside the clamping plate (6) is trapezoidal, and the mounting rail (5) and the clamping plate (6) are fixed by bolts.
4. The shaft end face processing tooling apparatus of claim 1, wherein: The clamping plate (6) is provided with a groove (7), which is a triangular prism structure.
5. The shaft end face processing tooling apparatus of claim 1, wherein: A maintenance plate (9) is installed on the back of the bracket (2), and the maintenance plate (9) is installed on the bracket (2) by bolts.