Universal rear chuck

Abstract

The utility model discloses a universal type rear chuck, which relates to the field of rear chucks and comprises a chuck seat, a large shaft sleeve is rotatably mounted in the chuck seat, a steering motor is arranged on one side of the chuck seat, a transmission gear component is connected between the steering motor and the large shaft sleeve, a clamp mechanism is arranged at one end of the large shaft sleeve, and the clamp mechanism is connected with the large shaft sleeve. A stop plate is fixedly installed on the chuck seat, and a rotary valve is arranged on the stop plate. The fixture mechanism can be controlled to realize free clamping and rotation through the steering motor and the pushing mechanism, the fixture mechanism can be assembled and used at will, a motor gear realizes the rotation function of the chuck, the pneumatic pushing mechanism realizes the clamping work of the clamping jaw, and the chuck is mounted on the sliding guide rail after being integrated, so that the axial feeding function is realized; the motor installation support is matched with the steering motor to adjust the installation position on the chuck base by 360 degrees, the multi-occasion and multi-position installation requirement is met, the production and machining requirements of most workpieces can be met, meanwhile, the structure is simple and stable, and daily use and maintenance are convenient.

Description

Technical Field

[0001] This utility model relates to the field of rear chuck technology, and in particular to a universal rear chuck. Background Technology

[0002] A chuck is a mechanical device used on machine tools to clamp workpieces. It is a machine tool accessory that uses the radial movement of movable jaws evenly arranged on the chuck body to clamp and position the workpiece. A chuck generally consists of three parts: the chuck body, the movable jaws, and the jaw drive mechanism. It has a through hole in the center to allow the workpiece or bar stock to pass through, and a cylindrical or short conical structure on the back. It is directly or through a flange connected to the end of the machine tool spindle. Chucks are usually used on lathes, external cylindrical grinding machines, and internal cylindrical grinding machines. They can also be used with various indexing devices on milling machines and drilling machines.

[0003] In the existing technology, some rear chucks can meet the processing needs of a single type, but cannot meet the needs of generalized production. Therefore, a general-purpose rear chuck is needed to meet people's needs. Utility Model Content

[0004] The purpose of this utility model is to provide a universal rear chuck to solve the problem mentioned in the background art that some rear chucks can meet the processing needs of a single type but cannot meet the needs of universal production.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a universal rear chuck, including a chuck seat, a large bushing rotatably mounted inside the chuck seat, a motor mounting bracket fixedly mounted on the chuck seat, a steering motor fixedly mounted on the motor mounting bracket, a clamping mechanism and a pushing mechanism arranged at one end of the large bushing, a stop plate fixedly mounted on the chuck seat, a rotary valve arranged on the stop plate, the rotary valve being adapted to the large bushing, the clamping mechanism including a chuck, the chuck fixedly mounted on the large bushing, a sliding groove slidably mounted on the chuck, and a chuck claw fixedly mounted on the sliding groove.

[0006] Preferably, the pushing mechanism includes a sliding plate, which is slidably mounted on the inner wall of the large bushing. A movable rod is fixedly mounted on the sliding plate, and a rotating rod is rotatably mounted on the top of the movable rod. A rotating lever is rotatably mounted on the rotating rod, and the rotating lever is rotatably mounted on the large bushing. One end of the rotating lever is rotatably mounted on a slide groove.

[0007] Preferably, a fixing plate is fixedly installed on the inner wall of the large bushing, and a fixing slide rod is fixedly installed on the fixing plate, with the sliding plate slidably installed on the fixing slide rod.

[0008] Preferably, a cylinder is fixedly installed on the inner wall of the large bushing, and the output end of the cylinder is fixedly installed on the slide plate.

[0009] Preferably, the rotary valve includes a bearing housing, which is fixedly mounted on a stop plate. A rotary valve body is rotatably mounted on the bearing housing, and a rotary valve core is rotatably mounted inside the rotary valve body. A rotary valve bearing is arranged between the rotary valve body and the rotary valve core.

[0010] Preferably, the rotary valve core has three air passages: air passage 1, air passage 2, and air passage 3. An internal air passage is formed on the inner wall of air passage 2. An internal air passage 1, an internal air passage 2, and an internal air passage 3 are arranged on the inner wall of the rotary valve body. A double sealing ring is arranged between the rotary valve body and the rotary valve core.

[0011] Preferably, a rotating bearing is arranged between the steering motor and the large bushing, and a drive gear and a driven gear are rotatably installed in the motor mounting bracket. The output end of the steering motor is connected to the drive gear, and the driven gear is fixedly sleeved on the large bushing.

[0012] The beneficial effects of this utility model are:

[0013] This invention utilizes a steering motor and a pushing mechanism to control the clamping mechanism, enabling free clamping and rotation. The chuck seat can be freely assembled and used within a 360-degree range. The motor and gear mechanism enables the chuck's rotation, while the pneumatic pushing mechanism clamps the jaws. The assembled chuck is mounted on a sliding guide rail for axial feeding. The motor mounting bracket drives the steering motor, allowing for 360-degree adjustment of the chuck seat's installation position, accommodating various installation requirements in multiple situations. This allows the device to meet the production and processing needs of most workpieces, while also offering a simple and stable structure for convenient daily use and maintenance. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of a universal rear chuck according to the present invention;

[0015] Figure 2 This is a cross-sectional view of a general-purpose rear chuck according to the present invention.

[0016] Figure 3 This is a schematic diagram of the rotary valve core structure of a universal rear chuck according to the present invention;

[0017] Figure 4 This is a schematic diagram of the rotary valve part of a universal rear chuck according to the present invention;

[0018] Figure 5 This is a schematic diagram of the motor mounting bracket portion of a universal rear chuck according to the present invention.

[0019] In the diagram: 100, chuck seat; 101, steering motor; 102, large bushing; 103, clamping mechanism; 104, stop plate; 105, chuck; 106, slide rail; 107, chuck jaw; 108, rotating bearing; 200, pushing mechanism; 201, sliding plate; 202, moving rod; 203, rotating rod; 204, rotating lever; 205, fixed plate; 206, fixed slide bar; 207, cylinder; 300, rotating... Rotary valve; 301, bearing housing; 302, rotary valve body; 303, rotary valve core; 304, air port one; 305, air port two; 306, air port three; 307, internal air port one; 308, internal air port two; 309, internal air port three; 310, rotary valve bearing; 311, double sealing ring; 312, internal air passage; 400, motor mounting bracket; 401, drive gear; 402, driven gear. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Reference Figure 1-5 A universal rear chuck includes a chuck seat 100, within which a large bushing 102 is rotatably mounted. A motor mounting bracket 400 is fixedly mounted on the chuck seat 100, and a steering motor 101 is fixedly mounted on the motor mounting bracket 400. A clamping mechanism 103 and a pushing mechanism 200 are arranged at one end of the large bushing 102. A stop plate 104 is fixedly mounted on the chuck seat 100, and a rotary valve 300 is arranged on the stop plate 104, the rotary valve 300 being adapted to the large bushing 102. The clamping mechanism 103 includes a chuck 105, which is fixedly mounted on the large bushing 102. A sliding groove 106 is slidably mounted on the bushing 102 and the chuck 105, and a jaw 107 is fixedly mounted on the sliding groove 106. The clamping mechanism can be controlled by the steering motor and the pushing mechanism to achieve free clamping and rotation, so that the chuck seat can be arbitrarily assembled and used in all 360-degree directions. The motor gear mechanism realizes the rotation function of the chuck, and the pneumatic pushing mechanism realizes the clamping work of the jaw. After assembly, the chuck is mounted on the sliding guide rail to realize the axial feeding function. This device can meet the production and processing needs of most workpieces. At the same time, the structure is simple and stable, and convenient for daily use and maintenance.

[0022] The pushing mechanism 200 includes a slide plate 201, which is slidably mounted on the inner wall of the large bushing 102. A movable rod 202 is fixedly mounted on the upper part of the slide plate 201. A rotating rod 203 is rotatably mounted on the top end of the movable rod 202. A rotating lever 204 is rotatably mounted on the rotating rod 203. The rotating lever 204 is rotatably mounted on the large bushing 102, and one end of the rotating lever 204 is rotatably mounted on the slide groove 106. The movable slide plate 201 drives the rotating rod 203 to rotate via the movable rod 202. The rotating rod 203 drives the rotating lever 204 to rotate on the large bushing 102, and drives the slide groove 106 to slide on the chuck 105, thereby realizing the clamping of the driving claw 107.

[0023] A fixing plate 205 is fixedly installed on the inner wall of the large bushing 102, and a fixing slide rod 206 is fixedly installed on the fixing plate 205. The slide plate 201 is slidably installed on the fixing slide rod 206. The slide plate 201 is constrained by the fixing plate 205 and the fixing slide rod 206 to ensure stability.

[0024] A cylinder 207 is fixedly installed on the inner wall of the large bushing 102, and the output end of the cylinder 207 is fixedly installed on the slide plate 201. The cylinder 207 is driven by air pressure provided by the rotary valve 300.

[0025] The rotary valve 300 includes a bearing housing 301, which is fixedly mounted on a stop plate 104. A rotary valve body 302 is rotatably mounted on the bearing housing 301, and a rotary valve core 303 is rotatably mounted inside the rotary valve body 302. A rotary valve bearing 310 is arranged between the rotary valve body 302 and the rotary valve core 303. The rotary valve body 302 and the rotary valve core 303 rotate on the bearing housing 301 via the rotary valve bearing 310, thereby adapting to the rotation of the large bushing 102.

[0026] The rotary valve core 303 has three air ports: 304, 305, and 306. An internal air passage 312 is formed on the inner wall of air port 305. Internal air ports 307, 308, and 309 are arranged on the inner wall of the rotary valve body 302. A double sealing ring 311 is arranged between the rotary valve body 302 and the rotary valve core 303. Compressed gas is input into the rotary valve 300 through air ports 304, 305, and 306, with the internal air ports 307, 308, and 309 controlling the gas flow. The double sealing ring 311 ensures the internal sealing.

[0027] A rotating bearing 108 is arranged between the steering motor 101 and the large bushing 102. A drive gear 401 and a driven gear 402 are rotatably installed in the motor mounting bracket 400. The output end of the steering motor 101 is connected to the drive gear 401, and the driven gear 402 is fixedly sleeved on the large bushing 102.

[0028] Working principle:

[0029] When using this device, the steering motor 101 drives the drive gear 401 to rotate. The rotating drive gear 401 drives the large bushing 102 to rotate within the chuck seat 100 via 402. The rotating large bushing 102 can adjust the direction of the clamping mechanism 103, thereby enabling arbitrary assembly and use within the 360-degree range of the chuck seat, improving the versatility of the device. The motor mounting bracket 400 drives the steering motor 101 to adjust the installation position 360 degrees on the chuck seat 100, meeting the requirements for installation in multiple occasions and positions. The clamping of some of the jaws 107 of the clamping mechanism 103 is controlled by the pushing mechanism 200. The output end of the cylinder 207 pushes the slide plate 201 to slide on the inner wall of the large bushing 102. The movable slide plate 201 is controlled by the movable rod 2. 02 drives the rotating rod 203 to rotate, and the rotating rod 203 drives the rotating lever 204 to rotate on the large bushing 102, and drives the slide groove 106 to slide on the chuck 105, thereby realizing the clamping of the driving claw 107. The cylinder 207 is driven by the rotary valve 300 to provide air pressure. The rotary valve body 302 and the rotary valve core 303 rotate on the bearing seat 301 through the rotary valve bearing 310, thereby adapting to the rotation of the large bushing 102. The compressed gas is input into the rotary valve 300 through the air port 1 304, air port 2 305, and air port 3 306. The gas flow is controlled by the internal air port 1 307, internal air port 2 308, and internal air port 3 309, and the double sealing ring 311 is used to ensure the internal sealing.

[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A universal rear chuck, comprising a chuck base (100), characterized in that: A large bushing (102) is rotatably mounted inside the chuck seat (100). A motor mounting bracket (400) is fixedly mounted on the chuck seat (100). A steering motor (101) is fixedly mounted on the motor mounting bracket (400). A clamping mechanism (103) and a pushing mechanism (200) are arranged at one end of the large bushing (102). A stop plate (104) is fixedly mounted on the chuck seat (100). A rotary valve (300) is arranged on the stop plate (104). The rotary valve (300) is adapted to the large bushing (102). The clamping mechanism (103) includes a chuck (105). The chuck (105) is fixedly mounted on the large bushing (102). A slide groove (106) is slidably mounted on the chuck (105). A chuck claw (107) is fixedly mounted on the slide groove (106).

2. A universal rear chuck according to claim 1, characterized in that: The pushing mechanism (200) includes a slide plate (201), which is slidably mounted on the inner wall of the large bushing (102). A movable rod (202) is fixedly mounted on the slide plate (201). A rotating rod (203) is rotatably mounted on the top of the movable rod (202). A rotating lever (204) is rotatably mounted on the rotating rod (203). The rotating lever (204) is rotatably mounted on the large bushing (102), and one end of the rotating lever (204) is rotatably mounted on the slide groove (106).

3. A universal rear chuck according to claim 1, characterized in that: A fixing plate (205) is fixedly installed on the inner wall of the large bushing (102), and a fixing slide rod (206) is fixedly installed on the fixing plate (205). The sliding plate (201) is slidably installed on the fixing slide rod (206).

4. A universal rear chuck according to claim 1, characterized in that: A cylinder (207) is fixedly installed on the inner wall of the large bushing (102), and the output end of the cylinder (207) is fixedly installed on the slide plate (201).

5. A universal rear chuck according to claim 1, characterized in that: The rotary valve (300) includes a bearing housing (301), which is fixedly mounted on a stop plate (104). A rotary valve body (302) is rotatably mounted on the bearing housing (301), and a rotary valve core (303) is rotatably mounted inside the rotary valve body (302). A rotary valve bearing (310) is arranged between the rotary valve body (302) and the rotary valve core (303).

6. A universal rear chuck according to claim 5, characterized in that: The rotary valve core (303) is provided with air passage one (304), air passage two (305), and air passage three (306). An internal air passage (312) is provided on the inner wall of air passage two (305). An internal air passage one (307), an internal air passage two (308), and an internal air passage three (309) are arranged on the inner wall of the rotary valve body (302). A double sealing ring (311) is arranged between the rotary valve body (302) and the rotary valve core (303).

7. A universal rear chuck according to claim 1, characterized in that: A rotating bearing (108) is arranged between the steering motor (101) and the large bushing (102). A drive gear (401) and a driven gear (402) are rotatably installed in the motor mounting bracket (400). The output end of the steering motor (101) is connected to the drive gear (401), and the driven gear (402) is fixedly sleeved on the large bushing (102).

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