A machining tool for a shaft assembly

Abstract

This utility model provides a machining fixture for shaft assemblies, belonging to the field of clamping fixtures. It includes a base, with a clamping assembly for clamping the shaft assembly mounted on the top of the base. A fixing assembly is mounted on the clamping assembly. In use, the shaft assembly to be reinforced is inserted between three rotating rings. Then, a hydraulic rod is activated, pushing a connecting rod, which in turn moves a power rod, causing the rotating rings to rotate inside the fixing rings. Through a connecting column connected to the rotating rings, the clamping jaws tighten, while a sliding column slides within a sliding groove. The tightened clamping jaws clamp and position the shaft assembly, facilitating subsequent machining operations.

Description

Technical Field

[0001] This utility model relates to the field of clamping fixtures, and more specifically, to a machining fixture for shaft assemblies. Background Technology

[0002] As a core transmission component in a mechanical system, the shaft assembly plays a crucial role in power transmission, motion conversion, and load support, and its machining accuracy directly affects the performance of the equipment.

[0003] A search revealed that Chinese Patent Publication No. CN214351710U discloses "a processing device for mandrels, comprising a base, a grinding device, and a fixing column. The grinding device and the fixing column are disposed facing each other on the top surface of the base. Two sets of clamping mechanisms are provided on the side of the fixing column near the grinding device. A mandrel body is fixed between the two sets of clamping mechanisms. An adjustment mechanism connected to the two sets of clamping mechanisms is provided on the fixing column. The adjustment mechanism includes a fixing groove, a rotating motor, a bidirectional lead screw, a fixing seat, and a slide. The fixing groove is opened inside the fixing column. The rotating motor is installed at the end of the fixing column, and the output end of the rotating motor passes through the fixing column and enters the interior of the fixing groove. One end of the bidirectional lead screw is connected to the output end of the rotating motor, and the other end is rotatably connected to the inner wall of the fixing groove through a rotating joint. The processing device for mandrels provided by this utility model facilitates the clamping and fixing of mandrel bodies of different sizes and is very convenient for adjustment." However, it still has the following drawbacks:

[0004] While it can clamp and fix shaft assemblies of different sizes in practical use, it is inconvenient to clamp and fix longer shaft assemblies, and it cannot allow for rotatable adjustment of the clamped shaft assemblies. To address this, a machining fixture for shaft assemblies is proposed. Utility Model Content

[0005] The purpose of this utility model is to address the problem that while it can clamp and fix shaft assemblies of different sizes, it is inconvenient to clamp and fix longer shaft assemblies and cannot allow for rotatable adjustment of the clamped shaft assemblies.

[0006] To achieve the above-mentioned objectives, this utility model provides the following technical solution:

[0007] The present invention is as follows: a machining fixture for a shaft assembly, including a base, a clamping component for clamping the shaft assembly is provided on the top of the base, and a fixing component is provided on the clamping component;

[0008] The clamping assembly includes three brackets fixedly mounted on the top of the base. A fixed ring is fixedly mounted on each bracket. A rotating ring is rotatably mounted on the inner side of each fixed ring. Three sliding grooves are evenly distributed around the periphery of each fixed ring. A sliding column is slidably mounted inside each sliding groove. A clamping claw is rotatably mounted at the end of each sliding column away from the sliding groove. A connecting column is provided on one side of each clamping claw and is rotatably mounted on the rotating ring. A mounting column is mounted at one end of each clamping claw, and a clamping wheel is rotatably mounted on the mounting column. A power groove is formed around the periphery of each fixed ring. A power rod is fixedly mounted around the periphery of each rotating ring and slidably connected inside the power groove. A connecting rod is fixedly connected to the bottom of each of the three power rods. A hydraulic rod is hinged between the connecting rod and the base.

[0009] As a preferred technical solution of this utility model, the fixing component includes a fixing groove formed on the clamping wheel, a fixing block slidably installed on the mounting post, and a fixing bolt threadedly connected to the mounting post.

[0010] As a preferred technical solution of this utility model, a buffer groove is provided on the periphery of the fixed ring, and two buffer plates are fixedly installed on the periphery of the rotating ring located in the buffer groove. A buffer spring is provided between the buffer plate and the buffer groove.

[0011] As a preferred technical solution of this utility model, the clamping wheel is made of EPDM rubber.

[0012] As a preferred technical solution of this utility model, the periphery of the clamping wheel is equipped with an anti-slip washer for improving the clamping ability of the clamping wheel.

[0013] As a preferred technical solution of this utility model, one side of the clamping claw is provided with an arc-shaped surface for increasing the clamping circumference.

[0014] As a preferred technical solution of this utility model, the clamping claw is made of high-strength aluminum alloy.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] 1. By setting up a clamping assembly, the shaft assembly that needs to be reinforced is inserted between the three rotating rings during use. Then, the hydraulic rod is activated, which pushes the connecting rod, causing the power rod to move and the rotating ring to rotate inside the fixed ring. Through the connecting column connected to the rotating ring, the clamping claw is tightened, and at the same time, the sliding column slides inside the sliding groove. The tightened clamping claw will clamp and position the shaft assembly, which is convenient for subsequent processing operations.

[0017] 2. By setting a fixing component, the fixing block is slidably installed on the mounting column during use so that the pins of the fixing block are inserted into the inside of the fixing groove. Then, the fixing block is fixed by tightening the fixing bolts. This prevents the clamping wheel from rotating and allows the clamped shaft assembly to be completely locked and positioned. By whether or not the clamping wheel is fixed, different processing environment requirements can be met. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the machining fixture for the shaft assembly provided by this utility model;

[0019] Figure 2 Right view of the machining fixture for the shaft assembly provided by this utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the machining fixture clamping assembly for the shaft assembly provided by this utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the machining fixture fixing assembly for the shaft assembly provided by this utility model;

[0022] Figure 5 A schematic diagram of the structure of the buffer spring for the machining fixture of the shaft assembly provided by this utility model.

[0023] The diagram shows: 1. Base; 2. Clamping assembly; 3. Fixing assembly; 201. Bracket; 202. Fixing ring; 203. Rotating ring; 204. Sliding groove; 205. Sliding column; 206. Clamping claw; 207. Connecting column; 208. Mounting column; 209. Clamping wheel; 210. Power groove; 211. Power rod; 212. Connecting rod; 213. Hydraulic rod; 301. Fixing groove; 302. Fixing insert; 303. Fixing bolt; 4. Buffer groove; 5. Buffer plate; 6. Buffer spring; 7. Anti-slip washer; 8. Curved surface. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model.

[0025] Therefore, the following detailed description of the embodiments of this utility model is not intended to limit the scope of the claimed utility model, but merely to illustrate some embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0026] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0027] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0028] like Figure 1 As shown, this embodiment proposes a machining fixture for a shaft assembly, including a base 1, a clamping component 2 for clamping the shaft assembly is provided on the top of the base 1, and a fixing component 3 is provided on the clamping component 2.

[0029] like Figure 3 As shown, the clamping assembly 2 includes three brackets 201 fixedly mounted on the top of the base 1. A fixing ring 202 is fixedly mounted on each bracket 201. A rotating ring 203 is rotatably mounted on the inner side of the fixing ring 202. Three sliding grooves 204 are evenly distributed around the periphery of the fixing ring 202. A sliding post 205 is slidably mounted inside each sliding groove 204. A clamping claw 206 is rotatably mounted at the end of the sliding post 205 away from the sliding groove 204. A connecting post 207 is provided on one side of the clamping claw 206 and is rotatably mounted on the rotating ring 203. A mounting post 208 is mounted at one end of the clamping claw 206. A clamping wheel 209 is rotatably mounted on the mounting post 208 for clamping the shaft assembly. A power groove 210 is provided around the periphery of the fixing ring 202. A power rod 211 is fixedly installed on the periphery of the 203, and the power rod 211 is slidably connected to the inside of the power groove 210. The bottom of the three power rods 211 is fixedly connected to a connecting rod 212. A hydraulic rod 213 is hinged between the connecting rod 212 and the base 1. The shaft assembly that needs to be reinforced is inserted between the three rotating rings 203. Then, the hydraulic rod 213 is activated. The hydraulic rod 213 pushes the connecting rod 212, which drives the power rods 211 to move. This causes the rotating ring 203 to rotate inside the fixed ring 202. Through the connecting column 207 connected to the rotating ring 203, the clamping claw 206 is tightened. At the same time, the sliding column 205 slides inside the sliding groove 204. The tightened clamping claw 206 clamps and positions the shaft assembly, which facilitates subsequent processing operations.

[0030] like Figure 4As shown, the fixing component 3 includes a fixing groove 301 formed on the clamping wheel 209, a fixing block 302 slidably mounted on the mounting post 208, and a fixing bolt 303 threadedly connected to the mounting post 208. The fixing block 302 is slidably mounted on the mounting post 208 so that the pin of the fixing block 302 is inserted into the inside of the fixing groove 301. Then, the fixing bolt 303 is tightened to hold the fixing block 302 in place, thereby fixing the fixing wheel 209 so that it no longer rotates, and the clamped shaft assembly can be completely locked and positioned. By whether or not the clamping wheel 209 is fixed, different processing environment requirements can be met.

[0031] like Figure 5 As shown, a buffer groove 4 is provided on the periphery of the fixed ring 202. Two buffer plates 5 are fixedly installed on the periphery of the rotating ring 203 located in the buffer groove 4. A buffer spring 6 is provided between the buffer plate 5 and the buffer groove 4. When the rotating ring 203 rotates and releases the positioning of the shaft assembly, the buffer spring 6 will generate a certain tension to buffer and improve the stability of the positioning of the shaft assembly.

[0032] like Figure 3 As shown, the clamping wheel 209 is made of EPDM rubber. EPDM rubber has excellent elasticity and can closely fit the surface of the shaft assembly, providing a stable clamping force.

[0033] like Figure 4 As shown, anti-slip washers 7 are installed on the periphery of the clamping wheel 209 to enhance its clamping capacity. The anti-slip washers 7 can enhance the clamping capacity of the clamping wheel 209, while reducing the wear of the clamping wheel 209 and facilitating maintenance.

[0034] like Figure 2 As shown, one side of the clamping claw 206 is provided with an arc-shaped surface 8 for increasing the clamping circumference. The arc-shaped surface 8 can increase the circumference of the shaft assembly clamping, and can be used for thicker shaft assemblies.

[0035] like Figure 3 As shown, the gripper 206 is made of high-strength aluminum alloy. The density of aluminum alloy is only 1 / 3 that of steel, which greatly reduces the load on the equipment while maintaining sufficient strength.

[0036] Specifically, when using this machining fixture, the shaft assembly to be reinforced is inserted between the three rotating rings 203. Then, the hydraulic rod 213 is activated. The hydraulic rod 213 pushes the connecting rod 212, which in turn moves the power rod 211, causing the rotating ring 203 to rotate inside the fixed ring 202. Through the connecting column 207 connected to the rotating ring 203, the clamping jaws 206 are tightened, and the sliding column 205 slides inside the sliding groove 204. The tightened clamping jaws 206 clamp and position the shaft assembly, facilitating subsequent machining operations. Figure 3The fixing block 302 is slidably mounted on the mounting post 208 so that the pins of the fixing block 302 are inserted into the inside of the fixing groove 301. Then, the fixing bolt 303 is tightened to hold the fixing block 302 in place, thus preventing the clamping wheel 209 from rotating and enabling complete locking and positioning of the clamped shaft assembly. By adjusting whether or not the clamping wheel 209 is fixed, different processing environment requirements can be met. Figure 4 ).

[0037] All technical features in this embodiment can be freely combined according to actual needs.

[0038] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. A machining fixture for a shaft assembly, comprising a base (1), characterized in that, The base (1) is provided with a clamping component (2) for clamping the shaft assembly at its top, and a fixing component (3) is provided on the clamping component (2). The clamping assembly (2) includes three brackets (201) fixedly installed on the top of the base (1). A fixing ring (202) is fixedly installed on the bracket (201). A rotating ring (203) is rotatably installed on the inner side of the fixing ring (202). Three sliding grooves (204) are evenly opened on the periphery of the fixing ring (202). A sliding column (205) is slidably installed inside the sliding groove (204). A clamping claw (206) is rotatably installed at the end of the sliding column (205) away from the sliding groove (204). A connecting column (207) is provided on one side of the clamping claw (206). (207) Rotatably mounted on the rotating ring (203), one end of the clamping claw (206) is mounted with a mounting post (208), a clamping wheel (209) is rotatably mounted on the mounting post (208), a power groove (210) is opened on the periphery of the fixed ring (202), a power rod (211) is fixedly mounted on the periphery of the rotating ring (203), and the power rod (211) is slidably connected to the inside of the power groove (210). The bottom of the three power rods (211) is fixedly connected to a connecting rod (212), and a hydraulic rod (213) is hinged between the connecting rod (212) and the base (1).

2. The machining fixture for a shaft assembly according to claim 1, characterized in that, The fixing component (3) includes a fixing groove (301) opened on the clamping wheel (209), a fixing block (302) is slidably installed on the mounting post (208), and a fixing bolt (303) is threadedly connected to the mounting post (208).

3. The machining fixture for a shaft assembly according to claim 1, characterized in that, The fixed ring (202) has a buffer groove (4) on its periphery. The rotating ring (203) is located on the periphery of the buffer groove (4) and two buffer plates (5) are fixedly installed. A buffer spring (6) is provided between the buffer plate (5) and the buffer groove (4).

4. The machining fixture for a shaft assembly according to claim 1, characterized in that, The clamping wheel (209) is made of EPDM rubber.

5. The machining fixture for a shaft assembly according to claim 1, characterized in that, The gripping wheel (209) is equipped with anti-slip washers (7) on its periphery to enhance the gripping ability of the gripping wheel (209).

6. The machining fixture for a shaft assembly according to claim 1, characterized in that, The clamping claw (206) has an arc-shaped surface (8) on one side to increase the clamping circumference.

7. The machining fixture for a shaft assembly according to claim 1, characterized in that, The gripper (206) is made of high-strength aluminum alloy.

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