Running-in device suitable for precision ball screw

Abstract

The utility model discloses a running-in device suitable for a precision ball screw, and relates to the technical field of ball screw testing. Comprising a bottom plate, the upper end of the bottom plate is fixedly connected with a fixing plate, the side wall of the fixing plate is provided with a rotating mechanism, the upper end of the bottom plate is fixedly connected with a sliding rail, the sliding rail is slidably sleeved with a sliding sleeve, the upper end of the sliding sleeve is provided with a clamping mechanism, and the upper end of the bottom plate is fixedly connected with a linear guide rail; a guide rail seat is arranged on the linear guide rail, and a positioning mechanism is arranged at the upper end of the guide rail seat. The position of the positioning mechanism can be flexibly adjusted, so that positioning of ball screws with different lengths can be met, and the adaptability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of ball screw testing, in particular to a running-in device suitable for a precision ball screw. Background Art

[0002] If the ball screw is used directly after being produced, it may not fit other parts better, resulting in an unsmooth connection. Therefore, a running-in device is required for a certain amount of running-in. The existing running-in device has a complex structure and high cost when in use, and is not convenient to use. At the same time, the existing running-in device has a fixed structure when in use, and the ball screw cannot be reasonably adjusted, which is not convenient for better running-in.

[0003] The patent with publication number CN204612926U and titled "A Ball Screw Pair Running Machine" discloses a ball screw pair running machine, including a machine base head, a machine base tail, a machine body bracket, a transmission device and a control device for controlling the transmission device, the transmission device is fixed to one side of the machine body bracket and connected to the control device, the machine body bracket is provided with a sliding platform; the sliding platform is provided with a nut seat for fixing the nut of the ball screw. In this patent, the positions of the machine head seat and the machine seat are fixed, which makes it difficult to adjust and is not suitable for positioning ball screws of different lengths. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a running-in device suitable for a precision ball screw.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A running-in device suitable for a precision ball screw comprises a base plate, the upper end of the base plate is fixedly connected to a fixed plate, the side wall of the fixed plate is provided with a rotating mechanism, the upper end of the base plate is fixedly connected to a slide rail, a slide sleeve is slidably sleeved on the slide rail, a clamping mechanism is provided at the upper end of the slide sleeve, the upper end of the base plate is fixedly connected to a linear guide rail, the linear guide rail is provided with a guide rail seat, and the upper end of the guide rail seat is provided with a positioning mechanism.

[0007] As a further improvement of the present invention, the rotating mechanism includes a stepper motor fixedly mounted on the side wall of the fixed plate, the output shaft of the stepper motor is fixedly connected to a rotating shaft, the rotating shaft passes through the fixed plate and is rotatably connected to the fixed plate, and the end of the rotating shaft away from the stepper motor is fixedly connected to a chuck.

[0008] As a further improvement of the utility model, the clamping mechanism includes a first electric telescopic rod fixedly mounted on the upper end of the sliding sleeve, the telescopic end of the first electric telescopic rod faces upward and is fixedly connected to a fixed block, a second electric telescopic rod is fixedly connected to the side wall of the fixed block, and the telescopic end of the second electric telescopic rod passes through the fixed block and is fixedly connected to a clamping plate.

[0009] As a further improvement of the present invention, the positioning mechanism includes a mounting plate fixedly connected to the upper end of the guide rail seat, and a third electric telescopic rod is fixedly installed on the side wall of the mounting plate away from the fixed plate. The telescopic end of the third electric telescopic rod passes through the mounting plate and is fixedly connected to a ejector pin.

[0010] As a further improvement of the present invention, the fixing block is a U-shaped structure.

[0011] As a further improvement of the present invention, the vertical cross-section of the slide rail is a T-shaped structure.

[0012] Beneficial effects of the utility model:

[0013] By setting up a linear guide rail, a guide rail seat, and a positioning mechanism, the end of the ball screw can be positioned and supported by the positioning mechanism, thereby ensuring the stability of the rotation of the ball screw, the linear guide rail can drive the guide rail seat to move, and the guide rail seat can drive the positioning mechanism to move, thereby satisfying the positioning needs of ball screws of different lengths and improving the adaptability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a structural schematic diagram of a running-in device suitable for a precision ball screw proposed by the utility model;

[0015] Figure 2 This is a schematic diagram of the structure of a rotating shaft and a chuck of a running-in device suitable for a precision ball screw proposed by the utility model;

[0016] Figure 3 The utility model provides a schematic structural diagram of an ejector pin and a third electric telescopic rod of a running-in device suitable for a precision ball screw.

[0017] In the figure: 1 base plate, 2 fixed plate, 3 stepper motor, 4 chuck, 5 slide rail, 6 sleeve, 7 first electric telescopic rod, 8 fixed block, 9 clamp, 10 second electric telescopic rod, 11 linear guide, 12 guide seat, 13 mounting plate, 14 ejector pin, 15 third electric telescopic rod, 16 rotating shaft. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0019] Figure 1-Figure 3 A running-in device suitable for a precision ball screw comprises a base plate 1, a fixed plate 2 is fixedly connected to the upper end of the base plate 1, a rotating mechanism is provided on the side wall of the fixed plate 2, a slide rail 5 is fixedly connected to the upper end of the base plate 1, the vertical section of the slide rail 5 is a T-shaped structure, a slide sleeve 6 is slidably sleeved on the slide rail 5, a clamping mechanism is provided on the upper end of the slide sleeve 6, a linear guide rail 11 is fixedly connected to the upper end of the base plate 1, a guide rail seat 12 is provided on the linear guide rail 11, and a positioning mechanism is provided on the upper end of the guide rail seat 12.

[0020] In the utility model, the rotating mechanism includes a stepper motor 3 fixedly mounted on the side wall of the fixed plate 2, the output shaft of the stepper motor 3 is fixedly connected to a rotating shaft 16, the rotating shaft 16 passes through the fixed plate 2 and is rotatably connected to the fixed plate 2, and the end of the rotating shaft 16 away from the stepper motor 3 is fixedly connected to a chuck 4.

[0021] The clamping mechanism includes a first electric telescopic rod 7 fixedly installed on the upper end of the sliding sleeve 6, the telescopic end of the first electric telescopic rod 7 faces upward and is fixedly connected to a fixed block 8, the fixed block 8 is a U-shaped structure, and a second electric telescopic rod 10 is fixedly connected to the side wall of the fixed block 8, and the telescopic end of the second electric telescopic rod 10 passes through the fixed block 8 and is fixedly connected to a clamping plate 9.

[0022] The positioning mechanism includes a mounting plate 13 fixedly connected to the upper end of the guide rail seat 12. A third electric telescopic rod 15 is fixedly installed on the side wall of the mounting plate 13 away from the fixed plate 2. The telescopic end of the third electric telescopic rod 15 passes through the mounting plate 13 and is fixedly connected to a ejector pin 14.

[0023] When the utility model is used, one end of the ball screw is clamped on the chuck 4, the third electric telescopic rod 15 is started to extend, and the ejector pin 14 is driven to support and position the other end of the ball screw, and the first electric telescopic rod 7 is started to extend, so that the screw sleeve on the ball screw is located on the inner side of the fixed block 8, and then the second electric telescopic rod 10 is started to extend, and the clamping plate 9 is driven to clamp and fix the screw sleeve, and then the stepping motor 3 is started to drive the rotating shaft 16 to rotate, and the chuck 4 is driven to rotate through the rotating shaft 16, and the ball screw is driven to rotate through the chuck 4, so that the screw sleeve can be driven to move along the slide rail 5, and the ball screw can be run-in test.

[0024] The above are only preferred specific implementation methods of the utility model, but the protection scope of the utility model is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the utility model, who makes equivalent replacements or changes based on the technical scheme and utility model concept of the utility model, should be covered by the protection scope of the utility model.

Claims

1. A running-in device suitable for a precision ball screw, comprising a base plate (1), characterized in that: The upper end of the base plate (1) is fixedly connected to a fixed plate (2), a rotating mechanism is provided on the side wall of the fixed plate (2), the upper end of the base plate (1) is fixedly connected to a slide rail (5), a slide sleeve (6) is slidably sleeved on the slide rail (5), a clamping mechanism is provided on the upper end of the slide sleeve (6), the upper end of the base plate (1) is fixedly connected to a linear guide rail (11), a guide rail seat (12) is provided on the linear guide rail (11), and a positioning mechanism is provided on the upper end of the guide rail seat (12).

2. A running-in device suitable for a precision ball screw according to claim 1, characterized in that: The rotating mechanism comprises a stepper motor (3) fixedly mounted on a side wall of a fixed plate (2); an output shaft of the stepper motor (3) is fixedly connected to a rotating shaft (16); the rotating shaft (16) passes through the fixed plate (2) and is rotatably connected to the fixed plate (2); and one end of the rotating shaft (16) away from the stepper motor (3) is fixedly connected to a chuck (4).

3. A running-in device suitable for a precision ball screw according to claim 1, characterized in that: The clamping mechanism comprises a first electric telescopic rod (7) fixedly mounted on the upper end of the sliding sleeve (6); the telescopic end of the first electric telescopic rod (7) faces upward and is fixedly connected to a fixing block (8); a second electric telescopic rod (10) is fixedly connected to a side wall of the fixing block (8); the telescopic end of the second electric telescopic rod (10) passes through the fixing block (8) and is fixedly connected to a clamping plate (9).

4. A running-in device suitable for a precision ball screw according to claim 1, characterized in that: The positioning mechanism comprises a mounting plate (13) fixedly connected to the upper end of the guide rail seat (12); a third electric telescopic rod (15) is fixedly mounted on a side wall of the mounting plate (13) away from the fixed plate (2); the telescopic end of the third electric telescopic rod (15) passes through the mounting plate (13) and is fixedly connected to a ejector pin (14).

5. The running-in device for a precision ball screw according to claim 3, characterized in that: The fixing block (8) is a U-shaped structure.

6. A running-in device suitable for a precision ball screw according to claim 1, characterized in that: The vertical cross section of the slide rail (5) is a T-shaped structure.

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