Ball screw machining center

Abstract

The utility model discloses a ball screw machining center which comprises a workbench and a clamping mechanism. The rear end of the upper surface of the workbench is fixedly connected with a vertical mounting frame, a transverse mounting frame capable of moving vertically is arranged in the vertical mounting frame, and a cutting knife capable of moving transversely is arranged in the transverse mounting frame; the clamping mechanism comprises I-shaped sliding grooves and clamping blocks, the I-shaped sliding grooves are formed in the left end and the right end of the upper surface of the workbench correspondingly, the clamping blocks are slidably connected to the front ends and the rear ends of the inner walls of the I-shaped sliding grooves correspondingly, and rubber pads are arranged on the sides, close to the centers of the I-shaped sliding grooves, of the clamping blocks correspondingly. The most appropriate clamping mode can be selected according to the length and the shape of the ball screw, the flexibility and the efficiency of the ball screw machining center during ball screw machining are remarkably improved, and it can be guaranteed that the stability and the precision of the machining process are kept under different machining requirements.

Description

Technical Field

[0001] The utility model relates to the technical field of ball screw processing, in particular to a ball screw processing center. Background Art

[0002] A ball screw is a mechanical transmission element, commonly used to convert rotary motion into linear motion or linear motion into rotary motion. It consists of a threaded shaft and a nut, with balls in the middle to transmit power. It has the characteristics of high efficiency, high precision and high load capacity. However, when the ball screw is processed in a machining center, it is very important to fix the ball screw to ensure stability and precision during the processing.

[0003] Traditional ball screws are usually placed on the workbench of the machining center before processing, and the position of the claws of the three-jaw chuck is adjusted so that it can tightly fix the outer diameter of the ball screw;

[0004] The traditional ball screw clamped by a three-jaw chuck has the following problems: Since the clamping point of the three-jaw chuck is mainly determined by the position of the chuck claws, it cannot be flexibly adjusted according to the specific size and shape of the ball screw, which may lead to an unsatisfactory or unstable clamping position, affecting the accuracy and safety of the processing. For this reason, we propose a ball screw machining center. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the existing defects and provide a ball screw processing center, which can select the most suitable clamping method according to the length and shape of the ball screw, significantly improve the flexibility and efficiency of the ball screw processing center when processing the ball screw, and can effectively solve the problems in the background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a ball screw machining center, including a workbench and a clamping mechanism;

[0007] Workbench: A vertical mounting frame is fixedly connected to the rear end of the upper surface thereof, a vertically movable horizontal mounting frame is arranged inside the vertical mounting frame, and a horizontally movable cutting knife is arranged inside the horizontal mounting frame;

[0008] Clamping mechanism: It includes an I-shaped slide and a clamping block. The I-shaped slide is respectively opened at the left and right ends of the upper surface of the workbench. The front and rear ends of the inner wall of the I-shaped slide are slidably connected with clamping blocks. The clamping block is provided with a rubber pad on the side close to the center of the I-shaped slide. The most suitable clamping method can be selected according to the length and shape of the ball screw, which significantly improves the flexibility and efficiency of the ball screw machining center in machining the ball screw, and can ensure the stability and accuracy of the machining process under different machining requirements.

[0009] Furthermore, it also includes a single-chip microcomputer, which is arranged at the right end of the front side of the workbench, and the input end of the single-chip microcomputer is electrically connected to an external power supply to facilitate the regulation of the operation of various electrical appliances.

[0010] Furthermore, it also includes a vertical slide groove, which is opened inside the vertical mounting frame, a screw rod is rotatably connected between the upper and lower inner walls of the vertical slide groove, the middle part of the screw rod is threadedly connected to the vertical slider, the front end of the vertical slider is fixedly connected to the rear side of the horizontal mounting frame, a horizontal slide groove is opened inside the horizontal mounting frame, a screw rod is rotatably connected between the left and right inner walls of the horizontal slide groove, the middle part of the screw rod is threadedly connected to the horizontal slider, a motor is provided on the rear side of the horizontal slider, the front end of the output shaft of the motor is fixedly connected to the rear end of the cutting tool, the input end of the motor is electrically connected to the output end of the single-chip microcomputer, so as to realize the processing of various parts of the ball screw.

[0011] Furthermore, it also includes a stepper motor 1 and a stepper motor 2, wherein the stepper motor 1 is installed on the top of the vertical mounting frame by bolts, and the bottom end of the output shaft of the stepper motor 1 is fixedly connected to the top of the screw rod, and the stepper motor 2 is installed on the right end of the horizontal mounting frame by bolts, and the left end of the output shaft of the stepper motor 2 is fixedly connected to the right end of the screw rod, and the input ends of the stepper motor 2 and the stepper motor 1 are electrically connected to the output end of the single-chip microcomputer to drive the cutting tool to move.

[0012] Furthermore, it also includes a mounting groove, which is opened inside the workbench to facilitate the installation of internal components.

[0013] Furthermore, the clamping mechanism also includes a rotating shaft, a mounting plate, an internal thread block, a slide groove and a guide slide groove, the slide groove is opened on the bottom wall of the mounting groove, the left and right ends of the inner wall of the slide groove are respectively slidably connected with the internal thread blocks, the top of the internal thread blocks are fixedly connected with the mounting plate, the front and rear ends of the upper surface of the mounting plate are respectively provided with guide slide grooves, the two laterally adjacent guide slide grooves are mirror-imaged, the rotating shafts are rotatably connected to the bottom end of the clamping block, the lower ends of the rotating shafts are located inside the vertically adjacent guide slide grooves, which can realize the clamping of ball screws of different lengths and shapes.

[0014] Furthermore, the clamping mechanism also includes a motor and a bidirectional screw rod, the bidirectional screw rod is rotatably connected between the left and right inner walls of the mounting groove, the left and right ends of the bidirectional screw rod are respectively threadedly connected to the middle parts of the vertically adjacent internal thread blocks, the motor is installed on the right side of the workbench by bolts, the left end of the output shaft of the motor is fixedly connected to the right end of the bidirectional screw rod, the input end of the motor is electrically connected to the output end of the single-chip microcomputer, and drives the clamping mechanism to operate.

[0015] Compared with the prior art, the beneficial effects of the utility model are: the ball screw machining center has the following advantages:

[0016] When the motor is running, the rotation of the bidirectional lead screw will cause the internal thread block to move in the slide groove. This movement will drive the mounting plate to move horizontally in the I-shaped slide groove. The movement of the mounting plate allows the ball screw placed between the two clamping blocks to remain stable during processing, thereby clamping both ends of the ball screw. When the ball screw is shorter, it is impossible to install clamping blocks on both ends to fix it. At this time, the ball screw is placed between the two clamping blocks on one side, and then the position of the internal thread block on the bidirectional lead screw is adjusted again so that the mounting plate can be moved to a suitable position, and the clamping block on that side is adjusted into place, thereby fixing the outer diameter of the ball screw. Therefore, the two ends or the outer diameter can be clamped according to the length and characteristics of the ball screw, thereby improving the flexibility and adaptability of the ball screw machining center when processing ball screws. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the structure of the utility model in a front side section;

[0019] Figure 3 It is a schematic diagram of the structure of the utility model enlarged at A;

[0020] Figure 4 It is a schematic diagram of the structure enlarged at B of the utility model;

[0021] Figure 5 It is a partial structural schematic diagram of the clamping mechanism of the utility model.

[0022] In the figure: 1 single chip microcomputer, 2 workbench, 3 clamping mechanism, 31 I-shaped slide, 32 clamping block, 33 motor, 34 rotating shaft, 35 mounting plate, 36 internal thread block, 37 slide, 38 bidirectional screw rod, 39 guide slide, 4 cutting tool, 5 vertical mounting frame, 6 stepper motor 1, 7 horizontal mounting frame, 8 vertical slide, 9 vertical slider, 10 stepper motor 2, 11 horizontal slide, 12 screw rod, 13 horizontal slider, 14 motor, 15 screw rod, 16 mounting groove. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-5,This embodiment provides a technical solution: a ball screw machining center, including a workbench 2 and a clamping mechanism 3;

[0025] The workbench 2: The rear end of the upper surface thereof is fixedly connected with a vertical mounting frame 5, the interior of the vertical mounting frame 5 is provided with a vertically movable horizontal mounting frame 7, the interior of the horizontal mounting frame 7 is provided with a horizontally movable cutting knife 4, and also includes a single chip microcomputer 1, the single chip microcomputer 1 is arranged at the right end of the front side of the workbench 2, the input end of the single chip microcomputer 1 is electrically connected to an external power supply, and also includes a vertical slide 8, the vertical slide 8 is opened inside the vertical mounting frame 5, the upper and lower inner walls of the vertical slide 8 are rotatably connected with a screw rod 15, the middle part of the screw rod 15 is threadedly connected with a vertical slider 9, the front end of the vertical slider 9 is connected to the horizontal mounting frame 7 The rear side of the horizontal mounting frame 7 is fixedly connected, a horizontal slide groove 11 is opened inside the horizontal mounting frame 7, a screw rod 12 is rotatably connected between the left and right inner walls of the horizontal slide groove 11, a horizontal slider 13 is threadedly connected to the middle part of the screw rod 12, a motor 14 is provided on the rear side of the horizontal slider 13, the front end of the output shaft of the motor 14 is fixedly connected to the rear end of the cutting blade 4, the input end of the motor 14 is electrically connected to the output end of the single-chip computer 1, and also includes a stepper motor 16 and a stepper motor 2 10, the stepper motor 16 is installed on the top of the vertical mounting frame 5 by bolts, and the bottom end of the output shaft of the stepper motor 16 is fixed to the top of the screw rod 15 In the connection, the stepper motor 10 is installed on the right end of the horizontal mounting frame 7 by bolts, the left end of the output shaft of the stepper motor 10 is fixedly connected to the right end of the screw rod 12, and the input ends of the stepper motor 10 and the stepper motor 16 are electrically connected to the output end of the single-chip computer 1, and also include a mounting groove 16, the mounting groove 16 is opened inside the workbench 2, after the clamping is completed, the single-chip computer 1 is used to control the operation of the stepper motor 16, so that the output shaft of the stepper motor 16 rotates, driving the screw rod 15 to rotate, and the screw rod 15 is threadedly connected to the vertical slider 9, so that the vertical slider 9 moves downward along the inner wall of the vertical slide groove 8, and the adjustment Adjust to a suitable distance between the vertical slider 9 and the ball screw. At this time, one end of the vertical slider 9 will also drive the horizontal mounting frame 7 to move. After the vertical adjustment is completed, the single chip microcomputer 1 controls the operation of the motor 14, and the output shaft of the motor 14 rotates to drive the cutting tool 4 to process. When this part of the processing task is completed, the single chip microcomputer 1 controls the operation of the stepper motor 10, and the output shaft of the stepper motor 10 rotates to drive the screw rod 12 to rotate. The screw rod 12 is threadedly connected with the horizontal slider 13, so that the horizontal slider 13 moves along the inner wall of the horizontal groove 11, so as to realize the processing of other parts of the ball screw.

[0026] Clamping mechanism 3: It includes an I-shaped slide 31 and a clamping block 32. The I-shaped slide 31 is respectively provided at the left and right ends of the upper surface of the workbench 2. The front and rear ends of the inner wall of the I-shaped slide 31 are slidably connected with the clamping block 32. The clamping block 32 is provided with a rubber pad on one side close to the center of the I-shaped slide 31. The clamping mechanism 3 also includes a rotating shaft 34, a mounting plate 35, an internal thread block 36, a slide 37 and a guide slide 39. The slide 37 is provided on the bottom wall of the mounting groove 16. The left and right ends of the inner wall of the slide 37 are respectively slidably connected with the internal thread block 36. The top of the internal thread block 36 is fixedly connected with the mounting The plate 35 has guide slots 39 at the front and rear ends of the upper surface of the mounting plate 35, and the two guide slots 39 adjacent to each other in the horizontal direction are mirror images of each other. The rotating shafts 34 are rotatably connected to the bottom ends of the clamping blocks 32, and the lower ends of the rotating shafts 34 are located inside the vertically adjacent guide slots 39. The clamping mechanism 3 also includes a motor 33 and a bidirectional screw rod 38, which is rotatably connected between the left and right inner walls of the mounting groove 16, and the left and right ends of the bidirectional screw rod 38 are respectively threadedly connected to the middle part of the vertically adjacent internal thread block 36. The motor 33 is installed on the right side of the workbench 2 by bolts, and the motor 3 The left end of the output shaft of the motor 33 is fixedly connected to the right end of the bidirectional screw rod 38, the input end of the motor 33 is electrically connected to the output end of the single chip computer 1, the ball screw is placed between two adjacent clamping blocks 32, and then the operation of the motor 33 is regulated by the single chip computer 1, the output shaft of the motor 33 rotates to drive the bidirectional screw rod 38 to rotate, the bidirectional screw rod 38 is threadedly connected with the internal thread blocks 36 at the left and right ends, so that the internal thread blocks 36 move along the inner wall of the slide groove 37 toward the center of the bidirectional screw rod, the movement of the internal thread block 36 drives the mounting plate 35 to move synchronously, and the movement of the mounting plate 35 causes the rotation of the bottom end of the clamping block 32 The rotating shaft 34 rotates and slides in the guide groove 39, thereby driving the clamping block 32 to slide horizontally in the I-shaped groove 31 to avoid, so that the rubber pad on it gradually approaches one end of the ball screw. As the motor 33 continues to run, the clamping block 32 finally contacts and clamps one end of the ball screw, thereby clamping both ends of the ball screw and improving the stability and accuracy of the processing process. For a shorter ball screw that cannot be clamped at both ends, it can be placed between the two clamping blocks 32 on one side, so that the outer diameter of the ball screw can be clamped.

[0027] The working principle of the ball screw machining center provided by the utility model is as follows: first, the ball screw is placed between two adjacent clamping blocks 32, and then the operation of the motor 33 is regulated by the single chip microcomputer 1. The output shaft of the motor 33 rotates to drive the bidirectional screw rod 38 to rotate. The bidirectional screw rod 38 is threadedly connected with the internal thread blocks 36 at the left and right ends, so that the internal thread block 36 moves along the inner wall of the slide groove 37 toward the center of the bidirectional screw rod. The movement of the internal thread block 36 drives the mounting plate 35 to move synchronously. The movement of the mounting plate 35 makes the rotating shaft 34 at the bottom end of the clamping block 32 both rotate and slide in the guide slide groove 39, thereby driving the clamping block 32 to slide horizontally in the I-shaped slide groove 31 to avoid, so that the rubber pad on it gradually approaches one end of the ball screw. As the motor 33 continues to operate, the clamping block 32 finally completes contact and clamping with one end of the ball screw, thereby realizing the clamping of both ends of the ball screw, improving the stability and accuracy during the machining process, and for a ball screw with a shorter length, it is impossible to clamp at both ends. When clamping, it can be placed between the two clamping blocks 32 on one side, so that the outer diameter of the ball screw can be clamped. After clamping is completed, the single-chip microcomputer 1 is used to control the operation of the stepper motor 6 to rotate the output shaft of the stepper motor 6, driving the screw 15 to rotate. The screw 15 is threadedly connected to the vertical slider 9, so that the vertical slider 9 moves downward along the inner wall of the vertical slide groove 8 and is adjusted to a suitable distance from the ball screw. At this time, one end of the vertical slider 9 will also drive the horizontal mounting frame 7 to move. After the vertical adjustment is completed, the single-chip microcomputer 1 is used to control the operation of the motor 14, and the output shaft of the motor 14 rotates to drive the cutting tool 4 to perform processing. When this part of the processing task is completed, the single-chip microcomputer 1 is used to control the operation of the stepper motor 2 10, and the output shaft of the stepper motor 2 10 rotates to drive the screw 12 to rotate. The screw 12 is threadedly connected to the horizontal slider 13, so that the horizontal slider 13 moves along the inner wall of the horizontal slide groove 11, thereby realizing the processing of other parts of the ball screw.

[0028] It is worth noting that the specific model of the single chip microcomputer 1 disclosed in the above embodiment is S7-200, the motor 33 can be selected as D180M-0160030B-E, the stepper motor 1 6 and the stepper motor 2 10 can be selected as NEMA 23, the motor 14 is preferably BMR-50, and the single chip microcomputer 1 controls the motor 33, the stepper motor 1 6, the stepper motor 2 10 and the motor 14 to work using methods commonly used in the prior art.

[0029] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. Ball screw machining center, characterized by: It comprises a workbench (2) and a clamping mechanism (3); The workbench (2) has a vertical mounting frame (5) fixedly connected to the rear end of its upper surface, a vertically movable horizontal mounting frame (7) is arranged inside the vertical mounting frame (5), and a horizontally movable cutting knife (4) is arranged inside the horizontal mounting frame (7); The clamping mechanism (3) comprises an I-shaped slide groove (31) and a clamping block (32), wherein the I-shaped slide groove (31) is respectively provided at the left and right ends of the upper surface of the workbench (2), the front and rear ends of the inner wall of the I-shaped slide groove (31) are slidably connected with the clamping blocks (32), and a rubber pad is provided on one side of the clamping block (32) close to the center of the I-shaped slide groove (31).

2. The ball screw machining center according to claim 1, characterized in that: It also comprises a single chip computer (1), which is arranged at the right end of the front side of the workbench (2), and the input end of the single chip computer (1) is electrically connected to an external power supply.

3. The ball screw machining center according to claim 2, characterized in that: The invention also comprises a vertical slide groove (8), wherein the vertical slide groove (8) is provided inside the vertical mounting frame (5), a screw rod (15) is rotatably connected between the upper and lower inner walls of the vertical slide groove (8), a vertical slider (9) is threadedly connected to the middle part of the screw rod (15), a front end of the vertical slider (9) is fixedly connected to the rear side of the horizontal mounting frame (7), a horizontal slide groove (11) is provided inside the horizontal mounting frame (7), a screw rod (12) is rotatably connected between the left and right inner walls of the horizontal slide groove (11), a horizontal slider (13) is threadedly connected to the middle part of the screw rod (12), a motor (14) is provided on the rear side of the horizontal slider (13), a front end of the output shaft of the motor (14) is fixedly connected to the rear end of the cutting blade (4), and an input end of the motor (14) is electrically connected to an output end of the single chip computer (1).

4. The ball screw machining center according to claim 3, characterized in that: It also includes a stepper motor 1 (6) and a stepper motor 2 (10), wherein the stepper motor 1 (6) is mounted on the top of the vertical mounting frame (5) by bolts, the bottom end of the output shaft of the stepper motor 1 (6) is fixedly connected to the top of the screw rod (15), the stepper motor 2 (10) is mounted on the right end of the horizontal mounting frame (7) by bolts, the left end of the output shaft of the stepper motor 2 (10) is fixedly connected to the right end of the screw rod (12), and the input ends of the stepper motor 2 (10) and the stepper motor 1 (6) are both electrically connected to the output end of the single chip computer (1).

5. The ball screw machining center according to claim 2, characterized in that: It also includes a mounting groove (16), wherein the mounting groove (16) is opened inside the workbench (2).

6. The ball screw machining center according to claim 5, characterized in that: The clamping mechanism (3) further comprises a rotating shaft (34), a mounting plate (35), an internal thread block (36), a slide groove (37) and a guide slide groove (39), wherein the slide groove (37) is provided on the bottom wall of the mounting groove (16), the left and right ends of the inner wall of the slide groove (37) are respectively slidably connected with the internal thread block (36), the top end of the internal thread block (36) is fixedly connected with the mounting plate (35), the front and rear ends of the upper surface of the mounting plate (35) are respectively provided with guide slide grooves (39), and two laterally adjacent guide slide grooves (39) are mirror-imaged, the rotating shaft (34) is rotatably connected to the bottom end of the clamping block (32), and the lower end of the rotating shaft (34) is located inside the vertically adjacent guide slide groove (39).

7. The ball screw machining center according to claim 6, characterized in that: The clamping mechanism (3) also includes a motor (33) and a bidirectional screw (38), wherein the bidirectional screw (38) is rotatably connected between the left and right inner walls of the mounting groove (16), and the left and right ends of the bidirectional screw (38) are respectively threadedly connected to the middle of the vertically adjacent internal thread blocks (36), and the motor (33) is installed on the right side of the workbench (2) by bolts, and the left end of the output shaft of the motor (33) is fixedly connected to the right end of the bidirectional screw (38), and the input end of the motor (33) is electrically connected to the output end of the single-chip computer (1).

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