Nut chamfering device

Abstract

The utility model relates to a kind of clamping devices for nut chamfer, it includes workbench, workbench is provided with bottom plate, bottom plate is rotationally arranged on workbench by rotating motor, the position of bottom plate top surface close to circumferential side is equidistantly set several pedestals along the circumference of bottom plate, pedestal is fixedly connected with bottom plate, the center of pedestal is rotationally arranged with rotary seat by rotating component, pedestal is provided with fixed frame, fixed frame is provided with inner clamping component, lifting linear module that drives inner clamping component lifting;Inner clamping component includes mounting plate, two-way cylinder, abutting roller, the slide of lifting linear module is fixedly connected with mounting block, mounting plate is fixedly connected with mounting block by connecting rod, two-way cylinder is installed on mounting plate, abutting roller is rotationally connected with the two output ends of two-way cylinder, the outer peripheral wall of abutting roller and the inner peripheral wall of nut abut.This application can improve the automation of clamping process, easy to operate, improve the efficiency of nut overall chamfer process.

Description

Technical Field

[0001] The utility model relates to the field of nut processing, in particular to a clamping device for nut chamfering. Background Art

[0002] A nut is a part that is screwed together with a bolt or a screw rod to perform a fastening function.

[0003] When a nut is processed, it is necessary to chamfer the outer wall of the nut. In the prior art, a chamfering device is used in cooperation with a clamping seat to clamp the outer wall of the nut. The clamping seat is located on one side of the chamfering device. The chamfering device drives a turning tool to move through a power mechanism so as to complete chamfering of the outer wall opening of the nut. After chamfering of one edge is completed, the clamping is released first, the nut is manually assisted to rotate by 60° and then clamped again. After all six edges on one surface are chamfered, the nut is turned over to make the unprocessed surface face upward, and then the above operations are repeated again to chamfer both surfaces of the nut.

[0004] Traditionally, the clamping seat includes a base, a fixing plate and a tightening bolt. The fixing plate is arranged vertically, the tightening bolt is arranged horizontally, the tightening bolt penetrates through the fixing plate and is in threaded connection with the fixing plate, and the tightening bolt abuts against the outer wall of the nut to fix the nut. The cooperation of the existing clamping device for nut chamfering not only has cumbersome operations, but also has low efficiency, so improvement is needed. Contents of the Utility Model

[0005] In order to solve the above technical problems, the present application provides a clamping device for nut chamfering.

[0006] The clamping device for nut chamfering provided by the present application adopts the following technical solutions: A clamping device for nut chamfering comprises a workbench, the workbench is located beside a chamfering device, a bottom plate is arranged on the workbench, the bottom plate is a circular plate, the bottom plate is rotatably arranged on the workbench through a rotating motor, a plurality of bases are arranged at equal intervals along the circumferential direction of the bottom plate at positions close to the circumferential side edge on the top surface of the bottom plate, the bases are fixedly connected with the bottom plate, the bases are in a circular ring shape, a rotating seat is rotatably arranged at the center of each base, the rotating seat is rotatably connected with the bottom plate through a rotating assembly, a fixing frame is arranged on each base, the fixing frame is in a "∩" shape, and an inner clamping assembly and a lifting linear module for driving the whole inner clamping assembly to lift are arranged on the fixing frame; The inner clamping assembly comprises a mounting plate, a bidirectional cylinder and a tightening roller, a slide table of the lifting linear module is fixedly connected with a mounting block, the mounting plate is fixedly connected with the mounting block through a connecting rod, the bidirectional cylinder is mounted on the mounting plate, two output ends of the bidirectional cylinder are located on the bottom surface of the bidirectional cylinder, the tightening roller is arranged vertically, the tightening rollers are respectively and rotatably connected with the two output ends of the bidirectional cylinder, and the outer peripheral wall of each tightening roller abuts against the inner peripheral wall of the nut.

[0007] Preferably, the bottom surface of the mounting plate is provided with an upper surface clamping assembly, which includes a clamping spring, a guide rod, and a clamping hemisphere. The clamping spring is sleeved on the guide rod, and the top end of the clamping spring abuts against the bottom surface of the mounting plate. The top surface of the clamping hemisphere is flat, and the bottom surface of the clamping hemisphere is spherical. The bottom end of the clamping spring abuts against the top surface of the clamping hemisphere, and the bottom surface of the clamping hemisphere abuts against the top surface of the nut. The bottom end of the guide rod is fixedly connected to the top surface of the hemisphere, and the top end of the guide rod protrudes from the mounting plate. The guide rod is slidably connected to the mounting plate.

[0008] Preferably, a limiting plate is fixedly connected to the top surface of the guide rod, and the diameter of the limiting plate is larger than the diameter of the guide rod.

[0009] Preferably, the fixing frame is located on the side of the rotating seat near the center of the base plate.

[0010] Preferably, the rotating assembly includes a servo motor, a first rotating shaft, a second rotating shaft, a first bevel gear, and a second bevel gear. The side wall of the base plate has a receiving space for accommodating the rotating assembly. The servo motor is mounted on the side wall of the base plate. The first rotating shaft is coaxially connected to the output shaft of the servo motor. The second rotating shaft is coaxially connected to the bottom surface of the rotating seat. Both the first and second rotating shafts are rotatably connected to the base plate. The first bevel gear is coaxially connected to the first rotating shaft, and the second bevel gear is coaxially connected to the second rotating shaft. The first bevel gear and the second bevel gear mesh.

[0011] Preferably, the rotary motor is mounted on the bottom surface of the workbench, the output shaft of the rotary motor extends upward through the workbench and is rotatably connected to the workbench, and the output shaft of the rotary motor is coaxially and fixedly connected to the bottom surface of the base plate.

[0012] Preferably, a pressure sensor is provided on the side wall of the clamping roller, and the pressure sensor is electrically connected to the bidirectional cylinder. When the pressure sensor detects that the clamping roller is in contact with the inner circumferential wall of the nut, the bidirectional cylinder stops operating.

[0013] Preferably, a distance sensor is provided on the bottom surface of the pressing roller. The distance sensor is electrically connected to the drive motor of the lifting linear module. When the distance sensor detects that the pressing roller and the top surface of the rotating seat reach a set value, the lifting linear module stops operating.

[0014] In summary, this application includes at least one of the following beneficial technical effects: 1. Improve the automation of nut clamping, enhance ease of operation, and increase the efficiency of the overall chamfering process for nuts; 2. It can adapt to nuts with different inner diameters and thicknesses, and the clamping device has strong adaptability; 3. The clamping roller and clamping hemisphere cooperate to position the nut in both radial and axial directions, improving the stability of the nut. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a nut chamfering clamping device according to an embodiment of this application, wherein the position of the chamfering device is indicated by a bracket next to the workbench.

[0016] Figure 2 This is a schematic diagram illustrating the position of the rotating motor in an embodiment of this application.

[0017] Figure 3 This is a cross-sectional structural diagram of the rotating assembly, the inner clamping assembly, and the upper surface abutting assembly in the embodiments of this application.

[0018] Explanation of reference numerals in the attached drawings: 1. Workbench; 2. Base plate; 21. Rotary motor; 22. Accommodation space; 3. Base; 4. Rotary seat; 5. Rotating assembly; 51. Servo motor; 52. First rotating shaft; 53. Second rotating shaft; 54. First bevel gear; 55. Second bevel gear; 6. Fixing frame; 61. Lifting linear module; 7. Inner clamping assembly; 71. Mounting plate; 72. Two-way cylinder; 73. Pressing roller; 731. Pressure sensor; 732. Distance sensor; 74. Connecting rod; 75. Mounting block; 8. Upper surface pressing assembly; 81. Pressing spring; 82. Guide rod; 83. Pressing hemisphere; 84. Limiting plate; 9. Nut; 10. Chamfering device. Detailed Implementation

[0019] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0020] This application discloses a clamping device for chamfering nuts.

[0021] Reference Figure 1-3 The nut chamfering clamping device includes a worktable 1, which is located next to the chamfering device 10. A base plate 2 is provided on the worktable 1. The base plate 2 is a circular plate and is rotatably mounted on the worktable 1 by a rotating motor 21. The rotating motor 21 is mounted on the bottom surface of the worktable 1, and its output shaft extends upward through the worktable 1 and is rotatably connected to it. The output shaft of the rotating motor 21 is coaxially and fixedly connected to the bottom surface of the base plate 2.

[0022] Several bases 3 are equidistantly arranged along the circumference of the base plate 2 near the periphery of the top surface of the base plate 2. In this embodiment, six bases 3 are equidistantly arranged along the circumference of the base plate 2. The bases 3 are fixedly connected to the base plate 2. The bases 3 are in the shape of a ring. A rotating seat 4 is rotatably arranged at the center of the base 3. The rotating seat 4 is rotatably connected to the base plate 2 through a rotating component 5.

[0023] The rotating assembly 5 includes a servo motor 51, a first rotating shaft 52, a second rotating shaft 53, a first bevel gear 54, and a second bevel gear 55. A side wall of the base plate 2 is provided with an accommodating space 22 for accommodating the rotating assembly 5. The servo motor 51 is mounted on the side wall of the base plate 2. The first rotating shaft 52 is coaxially connected to the output shaft of the servo motor 51. The second rotating shaft 53 is coaxially connected to the bottom surface of the rotating base 4. Both the first rotating shaft 52 and the second rotating shaft 53 are rotatably connected to the base plate 2. The first bevel gear 54 is coaxially connected to the first rotating shaft 52. The second bevel gear 55 is coaxially connected to the second rotating shaft 53. The first bevel gear 54 is meshed with the second bevel gear 55.

[0024] The interval time for starting the rotating motor 21 is set according to the chamfering time of each side edge of the nut 9, and the rotating base 4 is rotated clockwise by 60° each time, The base 3 is provided with a fixing frame 6, which is in the shape of a "∩". The fixing frame 6 is provided with an inner clamping assembly 7 and a lifting linear module 61 for driving the inner clamping assembly 7 to integrally lift. The fixing frame 6 is located on the side of the rotating base 4 close to the center of the base plate 2, so as to avoid affecting the chamfering operation.

[0025] The inner clamping assembly 7 includes a mounting plate 71, a bidirectional cylinder 72, and a pressing roller 73. A sliding table of the lifting linear module 61 is fixedly connected with a mounting block 75. The mounting plate 71 is fixedly connected to the mounting block 75 through a connecting rod 74. The bidirectional cylinder 72 is mounted on the mounting plate 71. Two output ends of the bidirectional cylinder 72 are located on the bottom surface of the bidirectional cylinder 72. The pressing rollers 73 are arranged vertically, and the pressing rollers 73 are respectively rotatably connected with the two output ends of the bidirectional cylinder 72. The outer peripheral wall of the pressing roller 73 abuts against the inner peripheral wall of the nut 9.

[0026] A side wall of the pressing roller 73 is provided with a pressure sensor 731, which is electrically connected to the bidirectional cylinder 72. When the pressure sensor 731 detects that the pressing roller 73 abuts against the inner peripheral wall of the nut 9, the bidirectional cylinder 72 stops operating, so that the inner clamping assembly 7 can adapt to nuts 9 with different inner diameters.

[0027] A bottom surface of the pressing roller 73 is provided with a distance measuring sensor 732, which is electrically connected to the driving motor of the lifting linear module 61. When the distance measuring sensor 732 detects that the distance between the pressing roller 73 and the top surface of the rotating base 4 reaches a set value (the set value is set according to the actual situation), the lifting linear module 61 stops operating, so that the inner clamping assembly 7 can adapt to nuts 9 with different thicknesses.

[0028] The bottom surface of the mounting plate 71 is provided with an upper surface clamping assembly 8, which includes a clamping spring 81, a guide rod 82, and a clamping hemisphere 83. The clamping spring 81 is sleeved on the guide rod 82, and the top end of the clamping spring 81 abuts against the bottom surface of the mounting plate 71. The top surface of the clamping hemisphere 83 is flat, and the bottom surface of the clamping hemisphere 83 is spherical. The bottom end of the clamping spring 81 abuts against the top surface of the clamping hemisphere 83, and the bottom surface of the clamping hemisphere 83 abuts against the top surface of the nut 9. The bottom end of the guide rod 82 is fixedly connected to the top surface of the hemisphere, and the top end of the guide rod 82 protrudes from the mounting plate 71, and the guide rod 82 is slidably connected to the mounting plate 71. A limiting plate 84 is fixedly connected to the top surface of the guide rod 82. The diameter of the limiting plate 84 is larger than the diameter of the guide rod 82 to prevent the guide rod 82 from detaching from the mounting plate 71.

[0029] The clamping roller 73 and the clamping hemisphere 83 work together to position the nut 9 in both radial and axial directions, thereby improving the stability of the nut 9.

[0030] When clamping nuts 9, place six nuts 9 on six rotating seats 4, first start all lifting linear modules 61 to drive the inner clamping assembly 7 to descend to the designated position, then start all bidirectional cylinders 72 to make the clamping rollers 73 press against the inner circumferential wall of the corresponding nut 9, thereby improving the automation of nut 9 clamping; During the chamfering process of nut 9, the rotating motor 21 drives the rotating seat 4 to automatically rotate 60° clockwise at regular intervals, automatically aligning one of the unprocessed sides of nut 9 with the chamfering device 10, thereby improving the ease of operation and increasing the efficiency of the overall chamfering process of nut 9.

[0031] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A clamping device for chamfering nuts, characterized in that: comprising a workbench, the workbench is located beside the chamfering device, a bottom plate is arranged on the workbench, the bottom plate is a circular plate, the bottom plate is rotatably arranged on the workbench by a rotating motor, several bases are arranged at equal intervals along the circumferential direction of the bottom plate at positions close to the peripheral side on the top surface of the bottom plate, the bases are fixedly connected with the bottom plate, the bases are in a circular ring shape, a rotating seat is rotatably arranged at the center of each base, the rotating seat is rotatably connected with the bottom plate through a rotating assembly, a fixing frame is arranged on the base, the fixing frame is in a "冂" shape, and an inner clamping assembly and a lifting linear module for driving the inner clamping assembly to lift as a whole are arranged on the fixing frame; the inner clamping assembly comprises a mounting plate, a bidirectional cylinder and a pressing roller, a sliding table of the lifting linear module is fixedly connected with a mounting block, the mounting plate is fixedly connected with the mounting block through a connecting rod, the bidirectional cylinder is mounted on the mounting plate, two output ends of the bidirectional cylinder are located on the bottom surface of the bidirectional cylinder, the pressing rollers are arranged vertically, the pressing rollers are respectively and rotatably connected with the two output ends of the bidirectional cylinder, and the outer peripheral wall of each pressing roller abuts against the inner peripheral wall of a nut.

2. The clamping device for chamfering nuts according to claim 1, characterized in that: the bottom surface of the mounting plate is provided with an upper surface pressing assembly, the upper surface pressing assembly comprises a pressing spring, a guide rod and a pressing hemisphere, the pressing spring is sleeved outside the guide rod, the top end of the pressing spring abuts against the bottom surface of the mounting plate, the top surface of the pressing hemisphere is a plane, the bottom surface of the pressing hemisphere is a spherical surface, the bottom end of the pressing spring abuts against the top surface of the pressing hemisphere, the bottom surface of the pressing hemisphere abuts against the top surface of the nut, the bottom end of the guide rod is fixedly connected with the top surface of the hemisphere, the top end of the guide rod penetrates out of the mounting plate, and the guide rod is slidably connected with the mounting plate.

3. The clamping device for chamfering nuts according to claim 2, characterized in that: the top surface of the guide rod is fixedly connected with a limiting plate, and the diameter of the limiting plate is larger than the diameter of the guide rod.

4. The clamping device for chamfering nuts according to claim 1, characterized in that: the fixing frame is located on the side of the rotating seat close to the center of the bottom plate.

5. The clamping device for chamfering nuts according to claim 1, characterized in that: the rotating assembly comprises a servo motor, a first rotating shaft, a second rotating shaft, a first bevel gear and a second bevel gear, an accommodating space for accommodating the rotating assembly is formed on the side wall of the bottom plate, the servo motor is mounted on the side wall of the bottom plate, the first rotating shaft is coaxially connected to the output shaft of the servo motor, the second rotating shaft is coaxially connected to the bottom surface of the rotating seat, the first rotating shaft and the second rotating shaft are both rotatably connected with the bottom plate, the first bevel gear is coaxially connected to the first rotating shaft, the second bevel gear is coaxially connected to the second rotating shaft, and the first bevel gear is meshed with the second bevel gear.

6. The clamping device for chamfering nuts according to claim 1, characterized in that: the rotating motor is mounted on the bottom surface of the workbench, the output shaft of the rotating motor penetrates upwards out of the workbench and is rotatably connected with the workbench, and the output shaft of the rotating motor is coaxially and fixedly connected with the bottom surface of the bottom plate.

7. The clamping device for chamfering nuts according to claim 1, characterized in that: a pressure sensor is arranged on the side wall of the pressing roller, the pressure sensor is electrically connected with the bidirectional cylinder, and when the pressure sensor detects that the pressing roller abuts against the inner peripheral wall of the nut, the bidirectional cylinder stops operating.

8. The clamping device for chamfering nuts according to claim 1, characterized in that: A distance sensor is installed on the bottom surface of the pressing roller. The distance sensor is electrically connected to the drive motor of the lifting linear module. When the distance sensor detects that the top surface of the pressing roller and the rotating seat reaches a set value, the lifting linear module stops operating.

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