Multi-angle clamping device for nut shaft driving lead screw machining

Abstract

The utility model relates to a multi-angle clamping device for nut shaft drive lead screw machining, and relates to the technical field of clamping devices.The multi-angle clamping device comprises a workbench, a motor and a three-jaw chuck, a mounting block is arranged on the workbench in a sliding mode, the motor is fixedly arranged on the mounting block, and a drive shaft of the motor penetrates through the mounting block to be connected with the three-jaw chuck; a sliding assembly for driving the mounting block to slide is arranged on the workbench; a supporting block is further arranged on the working table, a positioning groove allowing the ball screw to be inserted is formed in the supporting block, a limiting plate is rotationally arranged on the supporting block, and an arc-shaped plate capable of abutting against the ball screw is arranged on the limiting plate; a connecting assembly is arranged between the limiting plate and the supporting block and used for fixing the limiting plate to the supporting block. The device has the effects that the ball screw can be conveniently and rapidly positioned and fixed, the operation difficulty is reduced, and potential safety hazards are reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of clamping devices, and in particular to a multi-angle clamping device for machining a nut shaft drive screw. Background Technology

[0002] Currently, ball screws are the most commonly used transmission components in machine tools and precision machinery. Their main function is to convert rotary motion into linear motion or torque into axial repetitive force. They also feature high precision, reversibility, and high efficiency. During the production and processing of ball screws, the workpiece needs to be clamped and fixed.

[0003] A multi-angle clamping device is designed in the related technology, which includes a motor and a gripper. The gripper is connected to the drive shaft of the motor. Before machining the ball screw, the ball screw is connected to the gripper. The motor drives the gripper to rotate, so that the mechanical energy of the ball screw can be machined from different angles.

[0004] In the process of developing this application, it was found that the technology has at least the following problems: when installing the ball screw, one hand needs to hold the ball screw and the other hand needs to operate the gripper. Since the ball screw is heavy, the operation is difficult and it is not convenient to quickly position and fix the ball screw. Therefore, it needs to be improved. Utility Model Content

[0005] To facilitate quick positioning and fixing of ball screws, reduce operational difficulty, and lower safety hazards, this application provides a multi-angle clamping device for machining nut shaft drive screws.

[0006] The multi-angle clamping device for machining a nut shaft drive screw provided in this application adopts the following technical solution:

[0007] A multi-angle clamping device for machining a ball screw driven by a nut shaft includes a worktable, a motor, and a three-jaw chuck. A mounting block is slidably mounted on the worktable, and the motor is fixedly mounted on the mounting block. The drive shaft of the motor passes through the mounting block and is connected to the three-jaw chuck. A sliding assembly for driving the mounting block to slide is provided on the worktable. A support block is also provided on the worktable, and a positioning groove for inserting the ball screw is formed on the support block. A limit plate is rotatably mounted on the support block, and an arc-shaped plate that abuts against the ball screw is provided on the limit plate. A connecting assembly is provided between the limit plate and the support block, and the connecting assembly is used to fix the limit plate to the support block.

[0008] Preferably, the connecting assembly includes a mounting plate, a guide rod, an abutment spring, a limiting block, and an abutment block. The limiting block is integrally disposed at the end of the limiting plate away from its rotatable connection with the support block. The support block has a limiting groove for the limiting block to be inserted into, and the limiting groove and the limiting block are mutually compatible. The mounting plate is fixedly disposed on the end wall of the support block, the guide rod is fixedly disposed on the mounting plate, the abutment block is slidably disposed on the guide rod, and the abutment spring is sleeved on the guide rod. One end of the abutment spring abuts against the surface of the mounting plate, and the other end of the abutment spring abuts against the abutment block. The abutment spring drives the abutment block to abut against the end wall of the limiting block.

[0009] Preferably, the end of the abutment block away from the abutment spring is provided with a guide surface at an angle.

[0010] Preferably, the sliding assembly includes a drive rod and a connecting block. The end wall of the worktable has a drive groove along its length. The drive rod is slidably disposed in the drive groove. The surface of the worktable has a connecting groove that communicates with the drive groove. The connecting block is slidably disposed in the connecting groove and is fixed to the drive rod. The top end of the connecting block is fixed to the mounting block.

[0011] Preferably, the sliding assembly further includes a grip sleeve, which is sleeved on the end of the drive rod located outside the drive groove. The grip sleeve is threadedly connected to the drive rod, and the grip sleeve can abut against the end wall of the worktable.

[0012] Preferably, a number of guide rollers are symmetrically rotated on the opposite surfaces of the arc-shaped plate and the arc-shaped groove.

[0013] In summary, this application includes at least one of the following beneficial technical effects:

[0014] 1. By setting up a worktable, motor, three-jaw chuck, mounting block, sliding assembly, support block, positioning groove, limit plate, arc plate, and connecting assembly, when positioning the ball screw during machining, one end of the ball screw is placed into the positioning groove, and then the limit plate is rotated so that the arc plate abuts against the ball screw. The connecting assembly is used to fix the limit plate on the support block. At this time, the limit plate and the support block perform preliminary positioning and fixation of the ball screw. Then, the mounting block is slid through the sliding assembly, and the three-jaw chuck is operated to connect with the other end of the ball screw, quickly positioning and fixing the ball screw, reducing the difficulty of operation and reducing safety hazards.

[0015] 2. By setting up a drive rod, connecting block and grip, the grip drives the drive rod to slide. After adjusting the position of the mounting block, rotate the grip so that the grip can slide on the surface of the drive rod and abut against the end wall of the worktable. The friction force is used to quickly fix the position of the drive rod, which helps to improve the stability of the ball screw during the machining process.

[0016] 3. By setting guide rollers, after the ball screw is clamped and pressed between the arc plate and the arc groove, the guide rollers will abut against the surface of the ball screw. When the motor drives the three-jaw chuck to rotate to facilitate the processing of different positions on the surface of the ball screw, the guide rollers can reduce the friction between the surface of the ball screw and the arc and the inner wall of the arc groove, making it easier for the motor to drive the ball screw to rotate for multi-angle processing. Attached Figure Description

[0017] Figure 1 This is a front view of a multi-angle clamping device for machining a nut shaft drive screw, provided in an embodiment of this application.

[0018] Figure 2 This is a cross-sectional view of a multi-angle clamping device for machining a nut shaft drive screw, provided in an embodiment of this application.

[0019] Figure 3 This is a cross-sectional view used to illustrate the support block in the embodiments of this application.

[0020] Figure 4 This is a cross-sectional view used to illustrate the connection relationship between the grip and the drive rod in the embodiments of this application.

[0021] Explanation of reference numerals in the attached drawings: 1. Worktable; 2. Motor; 21. Three-jaw chuck; 3. Mounting block; 4. Support block; 41. Positioning groove; 42. Limiting plate; 421. Arc plate; 51. Mounting plate; 52. Guide rod; 53. Abutment spring; 54. Limiting block; 541. Limiting groove; 55. Abutment block; 551. Guide surface; 61. Drive rod; 611. Drive groove; 62. Connecting block; 621. Connecting groove; 63. Grip cylinder; 7. Guide roller; 10. Ball screw. Detailed Implementation

[0022] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0023] This application discloses a multi-angle clamping device for machining a nut shaft drive screw. (Refer to...) Figures 1 to 3The system includes a worktable 1, a motor 2, and a three-jaw chuck 21. A mounting block 3 is slidably mounted on the worktable 1, and the mounting block 3 can slide along the length of the worktable 1. The motor 2 is bolted to the side wall of the mounting block 3, and the drive shaft of the motor 2 passes through the mounting block 3 and connects to the three-jaw chuck 21. A sliding assembly for driving the mounting block 3 to slide is provided on the worktable 1. A support block 4 is also bolted to the worktable 1. The support block 4 has a positioning groove 41 for inserting a ball screw 10. The positioning groove 41 is designed with an arc shape to limit the movement of the ball screw 10. A limit plate 42 is rotatably mounted on the support block 4 via a rotating shaft. An arc-shaped plate 421 is provided on the side of the limit plate 42 facing the support block 4, which can abut against the ball screw 10. A connecting component is provided between the limiting plate 42 and the support block 4. When machining and positioning the ball screw 10, one end of the ball screw 10 is placed into the positioning groove 41, and then the limiting plate 42 is rotated so that the arc plate 421 abuts against the ball screw 10. The connecting component is used to fix the limiting plate 42 on the support block 4. At this time, the limiting plate 42 and the support block 4 perform preliminary positioning and fixing of the ball screw 10. Then, the mounting block 3 is slid through the sliding component, and the three-jaw chuck 21 is operated to connect with the other end of the ball screw 10, which reduces the difficulty of operation.

[0024] Reference Figure 2 and Figure 3The connecting assembly includes a mounting plate 51, a guide rod 52, an abutment spring 53, a limiting block 54, and an abutment block 55. The limiting block 54 is integrally mounted on the end of the limiting plate 42 away from its rotatable connection with the support block 4. The top of the support block 4, located on its end wall, has a limiting groove 541 for the limiting block 54 to be inserted into, and the limiting groove 541 and the limiting block 54 are mutually compatible. The mounting plate 51 is fixedly mounted on the end wall of the support block 4, away from the rotatable connection between the support block 4 and the limiting plate 42. The guide rod 52 is fixedly mounted on the mounting plate 51 in a vertical direction. The abutment block 55 is slidably mounted on the guide rod 52. The abutment spring 53 is sleeved on the guide rod 52. One end of the abutment spring 53 abuts against the surface of the mounting plate 51, and the other end of the abutment spring 53 abuts against the abutment block 55. The end of the abutment block 55 away from the direction of the abutment spring 53 has an inclined guide surface 551. Before positioning the ball screw 10, rotate the limiting plate 42 away from the support block 4. After placing the ball screw 10 into the positioning groove 41, rotate the limiting plate 42 so that the arc plate 421 abuts against the ball screw 10. When rotating the limiting plate 42, the limiting block 54 will first abut against the guide surface 551. The end wall of the limiting block 54 slides on the guide surface 551, and the abutment block 55 will be compressed by the force of the abutment spring 53. After the limiting block 54 is fully inserted into the positioning groove 41, the limiting block 54 will be positioned. After the ball screw 10 is inserted into the groove 541, the abutment spring 53 drives the abutment block 55 to abut against the end wall of the limiting block 54. The abutment block 55 restricts the limiting block 54 within the limiting groove 541. At this time, the limiting plate 42 and the support block 4 cannot rotate, thus quickly positioning the ball screw 10 and abutting it within the positioning groove 41. When the ball screw 10 needs to be removed, the sliding abutment block 55 can disengage the abutment block 55 from the limiting block 54. The operation is convenient and quick.

[0025] Reference Figure 1 and Figure 2 The sliding assembly includes a drive rod 61 and a connecting block 62. A drive groove 611 is formed on the end wall of the worktable 1 along its length. The drive rod 61 is slidably disposed within the drive groove 611, with its length direction aligned with the width direction of the drive groove 611. The drive rod 61 and the drive groove 611 are mutually adapted. A connecting groove 621 communicating with the drive groove 611 is formed on the surface of the worktable 1, with its length direction aligned with the length direction of the drive groove 611. The connecting block 62 is slidably disposed within the connecting groove 621 and fixed to the drive rod 61. The top end of the connecting block 62 is fixed to the mounting block 3. After the ball screw 10 is positioned and fixed within the positioning groove 41, the support block 4 supports the ball screw 10. Then, the drive rod 61 drives the connecting block 62 to slide within the connecting groove 621, thereby causing the mounting block 3 to slide along the length direction of the worktable 1, allowing the ball screw 10 to extend into the three-jaw chuck 21.

[0026] Reference Figure 1 and Figure 4The sliding assembly also includes a gripper 63. The part of the drive rod 61 located inside the drive groove 611 is rectangular, and the other part of the drive rod 61 located outside the drive groove 611 is circular. The gripper 63 is sleeved on the end of the drive rod 61 located outside the drive groove 611. The length direction of the gripper 63 is set along the length direction of the drive rod 61. The gripper 63 and the drive rod 61 are threaded together. Holding the gripper 63 drives the drive rod 61 to slide. After adjusting the position of the mounting block 3, the gripper 63 is rotated. The gripper 63 can slide on the surface of the drive rod 61 and abut against the end wall of the worktable 1. The position of the drive rod 61 is quickly fixed by friction, which helps to improve the stability of the ball screw 10 during the machining process.

[0027] Reference Figure 2 and Figure 3 Several guide rollers 7 are symmetrically rotated on the opposite surfaces of the arc plate 421 and the arc groove. The length direction of the guide rollers 7 is set along the length direction of the worktable 1. The ball screw 10 is clamped and pressed between the arc plate 421 and the arc groove. The guide rollers 7 will abut against the surface of the ball screw 10. When the motor 2 drives the three-jaw chuck 21 to rotate to facilitate the processing of different positions on the surface of the ball screw 10, the guide rollers 7 rotate. The guide rollers 7 can reduce the friction between the surface of the ball screw 10 and the arc and the inner wall of the arc groove, making it convenient for the motor 2 to drive the ball screw 10 to rotate for multi-angle processing.

[0028] The implementation principle of the multi-angle clamping device for machining a nut shaft drive screw according to an embodiment of this application is as follows: Before positioning the ball screw 10, the limiting plate 42 is rotated away from the support block 4. When machining the ball screw 10, one end of the ball screw 10 is placed into the positioning groove 41. Then, the limiting plate 42 is rotated so that the arc plate 421 abuts against the ball screw 10. The limiting plate 42 drives the limiting block 54 to be inserted into the limiting groove 541. The abutment spring 53 drives the abutment block 55 to abut against the end wall of the limiting block 54, thereby quickly fixing the limiting plate 42 on the support block 4. At this time, the limiting plate 42 and the support block 4 perform preliminary positioning and fixing of the ball screw 10, and the operator does not need to support the ball screw 10. Then, by holding the handle with one hand, the drive rod 61 slides within the drive groove 611, thereby controlling the sliding of the mounting block 3. The other end of the ball screw 10 is then inserted into the three-jaw chuck 21. Finally, the three-jaw chuck 21 is used to clamp the ball screw 10. The entire operation is convenient and quick, eliminating the need to constantly support the ball screw 10. This allows for rapid positioning and fixation of the ball screw 10, reducing operational difficulty and safety hazards.

[0029] 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 multi-angle clamping device for machining a nut shaft drive screw, comprising a worktable (1), a motor (2), and a three-jaw chuck (21), characterized in that: A mounting block (3) is slidably mounted on the worktable (1). The motor (2) is fixedly mounted on the mounting block (3). The drive shaft of the motor (2) passes through the mounting block (3) and is connected to the three-jaw chuck (21). A sliding assembly for driving the mounting block (3) to slide is provided on the worktable (1). A support block (4) is also provided on the worktable (1). A positioning groove (41) for inserting a ball screw is provided on the support block (4). A limit plate (42) is rotatably mounted on the support block (4). An arc plate (421) that can abut against the ball screw is provided on the limit plate (42). A connecting assembly is provided between the limit plate (42) and the support block (4). The connecting assembly is used to fix the limit plate (42) on the support block (4).

2. The multi-angle clamping device for machining a nut shaft drive screw according to claim 1, characterized in that: The connecting assembly includes a mounting plate (51), a guide rod (52), an abutment spring (53), a limiting block (54), and an abutment block (55). The limiting block (54) is integrally disposed at the end of the limiting plate (42) away from its rotatable connection with the support block (4). The support block (4) has a limiting groove (541) for the limiting block (54) to be inserted into, and the limiting groove (541) and the limiting block (54) are mutually adapted to each other. The mounting plate (51) is fixedly disposed on the support block (4). On the end wall of the support block (4), the guide rod (52) is fixedly mounted on the mounting plate (51), the abutment block (55) is slidably mounted on the guide rod (52), the abutment spring (53) is sleeved on the guide rod (52), one end of the abutment spring (53) abuts against the surface of the mounting plate (51), and the other end of the abutment spring (53) abuts against the abutment block (55). The abutment spring (53) drives the abutment block (55) to abut against the end wall of the limiting block (54).

3. The multi-angle clamping device for machining a nut shaft drive screw according to claim 2, characterized in that: The end of the abutment block (55) away from the abutment spring (53) is provided with a guide surface (551) at an angle.

4. The multi-angle clamping device for machining a nut shaft drive screw according to claim 1, characterized in that: The sliding assembly includes a drive rod (61) and a connecting block (62). The end wall of the worktable (1) is provided with a drive groove (611) along its length. The drive rod (61) is slidably disposed in the drive groove (611). The surface of the worktable (1) is provided with a connecting groove (621) that communicates with the drive groove (611). The connecting block (62) is slidably disposed in the connecting groove (621) and fixed to the drive rod (61). The top end of the connecting block (62) is fixed to the mounting block (3).

5. The multi-angle clamping device for machining a nut shaft drive screw according to claim 4, characterized in that: The sliding assembly also includes a grip (63), which is sleeved on one end of the drive rod (61) located outside the drive groove (611). The grip (63) is threadedly connected to the drive rod (61), and the grip (63) can abut against the end wall of the worktable (1).

6. The multi-angle clamping device for machining a nut shaft drive screw according to claim 1, characterized in that: Several guide rollers (7) are symmetrically rotated on the opposite surfaces of the arc plate (421) and the arc groove.

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