Hydraulic chuck with cleaning structure

Abstract

The utility model relates to the technical field of hydraulic chucks, and discloses a hydraulic chuck with a cleaning structure, which comprises a hydraulic chuck body, and claws are arranged on the surface of the hydraulic chuck body. When the telescopic column moves downwards and the inclined push rod rotates, the telescopic column is gradually extended, when the telescopic column is extended along the supporting rod, the connecting block is pushed, the connecting block drives the scraping plate to gradually move to the inner side of the clamping jaw, the reset spring is stretched, and the air cylinder is started again to lift the sliding block; the stretched reset spring retracts the extending telescopic column, when the telescopic column retracts, the scraper blade is driven by the connecting block to scrape the inner side of the clamping jaw, and then sweeps on the inner side of the clamping jaw are cleaned through the brush on the inner side of the scraper blade, so that the clamping jaw and a workpiece are prevented from being abraded by the fine sweeps; the service life of the clamping jaw is prolonged; and the accuracy of workpieces is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic chucks, in particular to a hydraulic chuck with a cleaning structure. Background Art

[0002] A hydraulic chuck is a device that uses hydraulic pressure to transmit power to achieve chuck clamping or release. A hydraulic chuck is usually composed of a hydraulic cylinder, a pressure control valve, an oil pipe, etc. Hydraulic chucks are often used in machine tools, fixtures and other fields to clamp workpieces or fixtures. Through the control of hydraulic pressure, the clamping force can be accurately controlled to improve the stability and accuracy of clamping. The clamping force of the hydraulic chuck can be adjusted according to the needs of the workpiece to meet different process requirements. The hydraulic chuck has the characteristics of large clamping force, stable clamping, and fast clamping speed. At the same time, the hydraulic chuck can also achieve automatic clamping and automatic release to improve production efficiency. In short, a hydraulic chuck is a device that uses hydraulic pressure to transmit power to achieve clamping or release, and is widely used in machine tools, fixtures and other fields.

[0003] Most of the existing hydraulic chucks clamp the workpiece for milling, turning, grinding and other processing operations, so a lot of small waste chips will be generated and splashed everywhere. It is inevitable that after the processed workpiece is removed, smaller waste chips will remain or adhere to the inner side of the jaws of the hydraulic chuck. When used again, these waste chips will increase the wear of the jaws and reduce the service life of the jaws. At the same time, the accuracy of the workpiece during processing cannot be guaranteed. Utility Model Content

[0004] The utility model aims to provide a hydraulic chuck with a cleaning structure to solve the problems raised in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical solution: a hydraulic chuck with a cleaning structure, comprising a hydraulic chuck body, a surface of the hydraulic chuck body is provided with claws, a surface of the hydraulic chuck body is provided with a cleaning part, and the cleaning part comprises:

[0006] A guide rail, the bottom surface of which is fixedly connected to the top surface of the hydraulic chuck body, a slide groove is provided on the surface of the guide rail, the slide groove is penetrated by a slider and is slidably connected, a cylinder is fixedly connected to the top surface of the guide rail, the output shaft of the cylinder penetrates the guide rail, and the bottom surface of the cylinder is fixedly connected to the top surface of the slider;

[0007] A support rod, one end of the support rod close to the slider is fixedly connected to the surface of the slider, and one end of the support rod away from the slider is penetrated by a telescopic column, and the cylinder is started, so that the support rod drives the telescopic column to move together, but the length of the inclined push rod remains unchanged, a circular groove is opened on the inner side of the telescopic column, and a return spring is fixedly connected to the inner side of the circular groove, and the end of the return spring away from the circular groove is fixedly connected to the surface of the support rod;

[0008] The connecting block is started again to raise the slide block, and the stretched return spring will retract the extended telescopic column. The surface of one side of the connecting block close to the telescopic column is penetrated and fixedly connected by the telescopic column, and the surface of one side of the connecting block away from the telescopic column is fixedly connected with a scraper.

[0009] Preferably, a hinge block 1 is fixedly connected to the bottom surface of the telescopic column, a cross bar 1 penetrates through the hinge block 1 and is fixedly connected, and an oblique push rod is penetrated and rotatably connected to the cross bar 1.

[0010] Preferably, a second hinge block is fixedly connected to the surface of the bottom end of the guide rail close to one side of the inclined push rod, and the second hinge block is penetrated by and fixedly connected to the second cross bar. When the telescopic column moves downward, the inclined push rod will gradually rotate with the center line of the second cross bar as the axis. According to the Pythagorean theorem, the telescopic column will gradually extend. The second cross bar penetrates the inclined push rod and is rotatably connected.

[0011] Preferably, a brush is provided on the bottom surface of the scraper close to the connecting block. When the telescopic column is retracted, the scraper is driven by the connecting block to scrape the inner side of the claw.

[0012] Preferably, the number of the connecting blocks is three groups, and the three groups of connecting blocks are respectively arranged in a circular array with the center line of the hydraulic chuck body as the axis, and an arc rod passes through each two groups of connecting blocks. The three groups of connecting blocks are connected by the arc rod, thereby ensuring the stability of the cleaning part when the connecting blocks clean the inside of the clamping claws.

[0013] Preferably, the scraper has an arc-shaped cross section, and the shape of the scraper is the same as the shape of the claw close to one end of the hydraulic chuck body.

[0014] Compared with the prior art, the utility model provides a hydraulic chuck with a cleaning structure, which has the following beneficial effects:

[0015] 1. The hydraulic chuck with a cleaning structure has a longer inclined push rod than the telescopic column according to the Pythagorean theorem. Therefore, when the telescopic column moves downward and the inclined push rod rotates, the telescopic column will gradually extend. When the telescopic column extends along the support rod, it will push the connecting block, and the connecting block will drive the scraper to gradually move to the inside of the claw, and the reset spring will be stretched. The cylinder is started again to raise the slider, and the stretched reset spring will retract the extended telescopic column. When the telescopic column is retracted, the scraper will be driven by the connecting block to scrape the inside of the claw, and then the waste chips inside the claw will be cleaned by the brush on the inside of the scraper to prevent small waste chips from wearing the claw and the workpiece, thereby increasing the service life of the claw and ensuring the accuracy of the workpiece.

[0016] 2. The hydraulic chuck with a cleaning structure connects three sets of connecting blocks through an arc rod, which ensures the stability of the cleaning part when the connecting block cleans the inner side of the claw, prevents the scraper from shaking too much and causing insufficient cleaning, and the scraper is larger than the clamping diameter of the claw when it is raised, preventing the scraper from affecting the clamping of the claw on the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the front view structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the cleaning part of the utility model;

[0019] Figure 3 This is a schematic diagram of the partial structure of the cleaning part of the utility model;

[0020] Figure 4 This is a partial enlarged structural diagram of the cleaning part of the utility model;

[0021] Figure 5 For this utility model Figure 4 A is a schematic diagram of the enlarged structure;

[0022] Figure 6 For this utility model Figure 4 Middle B is a schematic diagram of the enlarged structure;

[0023] Figure 7 It is a schematic diagram of the cross-sectional structure of the telescopic column of the utility model.

[0024] In the figure: 1. hydraulic chuck body; 2. cleaning part; 21. guide rail; 22. slide groove; 23. slider; 24. cylinder; 25. support rod; 26. telescopic column; 27. circular groove; 28. return spring; 29. ​​hinge block 1; 210. cross bar 1; 211. oblique push rod; 212. hinge block 2; 213. cross bar 2; 214. connecting block; 215. scraper; 216. arc rod; 3. claw. DETAILED DESCRIPTION

[0025] like Figure 1-Figure 7 As shown, the utility model provides a technical solution: a hydraulic chuck with a cleaning structure, including a hydraulic chuck body 1, a surface of the hydraulic chuck body 1 is provided with a claw 3, the surface of the hydraulic chuck body 1 is provided with a cleaning part 2, and the cleaning part 2 includes: a guide rail 21, a slide groove 22, a slider 23, a cylinder 24, a support rod 25, a telescopic column 26, a circular groove 27, a return spring 28, an articulated block 29, a cross bar 1 210, an inclined push rod 211, an articulated block 212, a cross bar 213, a connecting block 214, a scraper 215, and an arc rod 216.

[0026] The bottom surface of the guide rail 21 is fixedly connected to the top surface of the hydraulic chuck body 1, and a slide groove 22 is provided on the surface of the guide rail 21. The slide groove 22 is penetrated by the slider 23 and slidably connected. The top surface of the guide rail 21 is fixedly connected to the cylinder 24, and the output shaft of the cylinder 24 penetrates the guide rail 21, and the bottom surface of the cylinder 24 is fixedly connected to the top surface of the slider 23. The end of the support rod 25 close to the slider 23 is fixedly connected to the surface of the slider 23, and the end of the support rod 25 away from the slider 23 is penetrated by the telescopic column 26. Start the cylinder 24. Since the slider 23 penetrates the slide groove 22, the cylinder 24 pushes the slider 23 along the slide groove 22 and drives the support rod 25 to move downward, thereby causing the support rod 25 to drive the telescopic column 26 to move together, but the oblique push The length of the rod 211 remains unchanged. A circular groove 27 is provided on the inner side of the telescopic column 26. A return spring 28 is fixedly connected to the inner side of the circular groove 27. The end of the return spring 28 away from the circular groove 27 is fixedly connected to the surface of the support rod 25. When the telescopic column 26 extends along the support rod 25, it will push the connecting block 214, and the connecting block 214 will drive the scraper 215 to gradually move to the inner side of the claw 3, and the return spring 28 will be stretched. The cylinder 24 is started again to raise the slider 23. The stretched return spring 28 will retract the extended telescopic column 26. The surface of the connecting block 214 on one side close to the telescopic column 26 is penetrated and fixedly connected by the telescopic column 26, and the surface of the connecting block 214 on one side away from the telescopic column 26 is fixedly connected to the scraper 215. The bottom surface of the telescopic column 26 is fixedly connected to a hinge block 29, and the cross bar 210 penetrates and is fixedly connected to the hinge block 29. The cross bar 210 penetrates and is rotatably connected to the oblique push rod 211. The bottom end of the guide rail 21 is fixedly connected to the surface near the side of the inclined push rod 211 with a hinge block 212, and the hinge block 212 is penetrated and fixedly connected by the cross bar 213. When the telescopic column 26 moves downward, the inclined push rod 211 gradually rotates with the center line of the cross bar 213 as the axis. According to the Pythagorean theorem, the inclined push rod 211 is longer than the telescopic column 26, and then when the telescopic column 26 moves downward and the inclined push rod 211 rotates, the telescopic column 26 gradually extends, and the cross bar 213 penetrates the inclined push rod 211 and is rotatably connected. The bottom end surface of the scraper 215 near the connecting block 214 is provided with a brush. When the telescopic column 26 is retracted, the scraper 215 is driven by the connecting block 214 to scrape the inner side of the claw 3, and then the waste inside the claw 3 is cleaned by the brush inside the scraper 215. There are three groups of connecting blocks 214, and the three groups of connecting blocks 214 are respectively arranged in a circular array with the center line of the hydraulic chuck body 1 as the axis, and an arc rod 216 runs through every two groups of connecting blocks 214, and the three groups of connecting blocks 214 are connected by the arc rod 216. When the connecting blocks 214 clean the inner side of the clamping claw 3, the stability of the cleaning part 2 is guaranteed, and the scraper 215 is prevented from shaking too much and causing insufficient cleaning. In addition, the scraper 215 is larger than the clamping diameter of the clamping claw 3 when it is raised, so as to prevent the scraper 215 from affecting the clamping of the clamping claw 3 on the workpiece.The scraper 215 has an arc-shaped cross section, and the shape of the scraper 215 is the same as the shape of the end of the clamping claw 3 close to the hydraulic chuck body 1 .

[0027] Based on the above embodiment, after the hydraulic chuck body 1 clamps the workpiece and processes it through the equipment, small waste chips will be generated during the workpiece processing, and these waste chips will more or less adhere to the inner side of the clamping claw 3. At this time, the cylinder 24 is started. Since the slider 23 passes through the slide groove 22, the cylinder 24 pushes the slider 23 along the slide groove 22 and drives the support rod 25 to move downward together, thereby causing the support rod 25 to drive the telescopic column 26 to move together, but the length of the inclined push rod 211 remains unchanged. Therefore, when the telescopic column 26 moves downward, the inclined push rod 211 will gradually rotate with the center line of the cross bar 213 as the axis. According to the Pythagorean theorem, the inclined push rod 211 is longer than the telescopic column 26, and thus when the telescopic column 26 moves downward, the inclined push rod 211 will gradually rotate with the center line of the cross bar 213 as the axis. According to the Pythagorean theorem, the inclined push rod 211 is longer than the telescopic column 26, and When the telescopic column 26 moves downward and the oblique push rod 211 rotates, the telescopic column 26 will gradually extend. When the telescopic column 26 extends along the support rod 25, it will push the connecting block 214, and the connecting block 214 will drive the scraper 215 to gradually move to the inner side of the claw 3, and the return spring 28 will be stretched. The cylinder 24 is started again to lift the slider 23, and the stretched return spring 28 will retract the extended telescopic column 26. When the telescopic column 26 is retracted, it will drive the scraper 215 to scrape the inner side of the claw 3 through the connecting block 214, and then the waste chips inside the claw 3 are cleaned by the brush inside the scraper 215, so as to prevent the small waste chips from wearing the claw 3 and the workpiece, thereby increasing the service life of the claw 3 and ensuring the accuracy of the workpiece.

[0028] The three groups of connecting blocks 214 are connected by an arc rod 216, which ensures the stability of the cleaning part 2 when the connecting block 214 cleans the inner side of the claw 3, prevents the scraper 215 from shaking too much and causing insufficient cleaning, and the scraper 215 is larger than the clamping diameter of the claw 3 when raised, preventing the scraper 215 from affecting the clamping of the claw 3 on the workpiece.

[0029] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A hydraulic chuck with a cleaning structure, comprising a hydraulic chuck body (1), wherein a clamping claw (3) is arranged on the surface of the hydraulic chuck body (1), characterized in that: The surface of the hydraulic chuck body (1) is provided with a cleaning portion (2), and the cleaning portion (2) comprises: A guide rail (21), the bottom surface of the guide rail (21) is fixedly connected to the top surface of the hydraulic chuck body (1), a slide groove (22) is provided on the surface of the guide rail (21), the slide groove (22) is penetrated by a slider (23) and is slidably connected, the top surface of the guide rail (21) is fixedly connected to a cylinder (24), the output shaft of the cylinder (24) penetrates the guide rail (21), and the bottom surface of the cylinder (24) is fixedly connected to the top surface of the slider (23); A support rod (25), one end of the support rod (25) close to the slider (23) is fixedly connected to the surface of the slider (23), one end of the support rod (25) away from the slider (23) is penetrated by a telescopic column (26), a circular groove (27) is provided on the inner side of the telescopic column (26), a return spring (28) is fixedly connected to the inner side of the circular groove (27), and one end of the return spring (28) away from the circular groove (27) is fixedly connected to the surface of the support rod (25); A connecting block (214), wherein a side surface of the connecting block (214) close to the telescopic column (26) is penetrated by the telescopic column (26) and is fixedly connected thereto, and a side surface of the connecting block (214) away from the telescopic column (26) is fixedly connected to a scraper (215).

2. A hydraulic chuck with a cleaning structure according to claim 1, characterized in that: The bottom surface of the telescopic column (26) is fixedly connected to a hinge block 1 (29), a cross bar 1 (210) passes through and is fixedly connected to the hinge block 1 (29), and an oblique push rod (211) passes through and is rotatably connected to the cross bar 1 (210).

3. The hydraulic chuck with a cleaning structure according to claim 1, characterized in that: A second hinge block (212) is fixedly connected to the surface of the bottom end of the guide rail (21) close to the oblique push rod (211); the second hinge block (212) is penetrated by and fixedly connected to the second cross bar (213); the second cross bar (213) penetrates the oblique push rod (211) and is rotatably connected thereto.

4. The hydraulic chuck with a cleaning structure according to claim 1, characterized in that: A brush is provided on the bottom surface of the scraper (215) on the side close to the connection block (214).

5. The hydraulic chuck with a cleaning structure according to claim 1, characterized in that: The number of the connection blocks (214) is three groups, and the three groups of connection blocks (214) are arranged in a circular array with the center line of the hydraulic chuck body (1) as the axis, and an arc rod (216) passes through between every two groups of connection blocks (214).

6. The hydraulic chuck with a cleaning structure according to claim 1, characterized in that: The scraper (215) has an arc-shaped cross section, and the shape of the scraper (215) is the same as the shape of the end of the clamping claw (3) close to the hydraulic chuck body (1).

Images