High-precision ball screw for numerical control machine tool

Abstract

The utility model relates to the technical field of ball screws, in particular to a high-precision ball screw for a numerical control machine tool, which comprises a sleeve, a telescopic rod is inserted into one side of the sleeve and is in sliding connection with the sleeve, two groups of first ball grooves are formed in the inner wall of the joint of the sleeve and the telescopic rod, and the first ball grooves are arranged in the sleeve. Two sets of second ball grooves are formed in the side, away from the first ball grooves, of the inner wall of the joint of the sleeve and the telescopic rod, switching grooves are formed in one ends of the two sets of first ball grooves and one ends of the two sets of second ball grooves, and the first ball grooves communicate with the second ball grooves through the switching grooves; a rotating motor is arranged on one side of the telescopic rod, a transmission gear is fixedly connected to the output end of one side of the rotating motor, an electric wire is fixedly connected to one side of the rotating motor, and the high-precision ball screw for the numerical control machine tool has the advantage that the transmission distance of the ball screw can be adjusted through the arranged switching groove.

Description

TECHNICAL FIELD

[0001] The utility model relates to ball screw technical field especially relates to a high accuracy ball screw for numerical control machine tool. BACKGROUND

[0002] With the rapid development of manufacturing industry, the market's quality and production efficiency requirement of product is increasing. As the core equipment of modern manufacturing industry, the performance of numerical control machine tool directly influences the machining precision and production efficiency of product. In order to realize high speed and high precision machining, numerical control machine tool needs to be equipped with high precision, high rigidity and high transmission efficiency transmission device. Ball screw technology becomes the ideal choice of numerical control machine tool transmission device by its unique advantage, and ball screw effectively reduces friction loss through the unique ball and thread cooperation design, significantly improves the accuracy of transmission. This high precision characteristic makes numerical control machine tool keep stable operation in the machining process, improves the quality and consistency of product, and the transmission distance of the existing ball screw is usually fixed length, when it is needed to replace shorter transmission distance according to different use conditions, the overall ball screw needs to be disassembled and replaced, which is more complex and consumes manpower.

[0003] Therefore, it is necessary to provide a new high accuracy ball screw for numerical control machine tool to solve the above technical problems. CONTENT OF UTILITY MODEL

[0004] To solve the above technical problems, the utility model provides a high accuracy ball screw for numerical control machine tool.

[0005] The high accuracy ball screw for numerical control machine tool provided by the utility model comprises:

[0006] The sleeve is slidably connected with the telescopic rod on one side,

[0007] The first ball groove is provided with two groups, and the second ball groove is provided with two groups on the inner wall of the connecting portion of the sleeve and the telescopic rod, away from the first ball groove; one end of the two groups of first ball grooves and the two groups of second ball grooves is provided with a switching groove, and the first ball groove and the second ball groove are communicated through the switching groove;

[0008] The transmission gear is provided on one side of the telescopic rod, and the transmission gear is fixedly connected with the output end of the rotary motor on one side; the rotary motor is fixedly connected with the electric wire on one side.

[0009] Preferably, the sleeve is fixedly connected with a fixed shaft at one end, and the fixed shaft can fix the position of the sleeve.

[0010] Preferably, the telescopic rod is rotatably connected with a rotating shaft at one end, and the rotating shaft can rotate the telescopic rod.

[0011] Preferably, the fixed shaft and the rotating shaft are fixedly connected with mounting buckles on both sides, and the ball screw can be installed through the mounting buckles.

[0012] Preferably, the other end of the sleeve is sleeved with a limiting sleeve on the telescopic rod, and the transmission distance of the ball screw can be limited through the limiting sleeve.

[0013] Preferably, the telescopic rod is sleeved with a sleeve gear on one side, and the telescopic rod can be conveniently driven to rotate through the sleeve gear.

[0014] Preferably, the transmission gear is in meshing connection with the sleeve gear, and the telescopic rod can be driven to rotate through the transmission gear.

[0015] Preferably, the mounting buckles are fixedly connected in parallel on both sides of the fixed shaft and the rotating shaft, and the platforms can be conveniently connected through the parallel mounting buckles.

[0016] Compared with the related art, the high-precision ball screw for numerical control machine tools has the following beneficial effects:

[0017] The utility model provides a kind of high-precision ball screw for numerical control machine tools;

[0018] 1, the utility model can be adjusted the transmission distance of ball screw through the setting switching groove, when the transmission distance needs to be shortened according to use condition, telescopic rod and the connection of sleeve can be driven close by transmission structure, drive ball to roll to the end of one side of ball groove, after rotating motor drives telescopic rod to rotate, ball in the end of ball groove can be rolled to shorter rolling groove by telescopic rod rotation, so that the transmission distance of ball screw is adjusted;

[0019] 2, the utility model can drive telescopic rod to rotate by setting transmission gear, when transmission distance needs to be adjusted, the output end of rotating motor can be rotated by the controller of outside control, drive transmission gear to rotate, drive sleeve gear of meshing and movable connection to rotate, drive telescopic rod to rotate, so that telescopic rod is driven to rotate. DETAILED DESCRIPTION

[0020] Figure 1 It is the overall structure schematic diagram of high-precision ball screw for numerical control machine tools provided by the utility model;

[0021] Figure 2 It is Figure 1 It is the overhead sectional structure schematic diagram of high-precision ball screw for numerical control machine tools shown in the figure;

[0022] Figure 3 It is Figure 1The side sectional view structure diagram of the high-precision ball screw for numerical control machine tool is shown.

[0023] The figure label: 1, sleeve; 2, telescopic rod; 3, fixed shaft; 4, rotating shaft; 5, mounting buckle; 6, limiting sleeve; 7, sleeve gear; 8, transmission gear; 9, rotary motor; 10, wire; 11, first ball groove; 12, ball; 13, switching groove; 14, second ball groove. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and advantages of the utility model more clearly, the following will be further described in detail in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model, and are not used to limit the utility model.

[0025] The specific implementation of the utility model will be described in detail in combination with specific examples.

[0026] Please refer to Figures 1 to 3 The utility model embodiment provides a high-precision ball screw for numerical control machine tool, the high-precision ball screw for numerical control machine tool includes:

[0027] Sleeve 1, one side of sleeve 1 is inserted and slidingly connected with telescopic rod 2;

[0028] Switching groove 13, the inner wall of the connecting place of sleeve 1 and telescopic rod 2 is provided with first ball groove 11, and the first ball groove 11 is provided with two groups, the inner wall of the connecting place of sleeve 1 and telescopic rod 2 is provided with second ball groove 14 on the side away from the first ball groove 11, and the second ball groove 14 is provided with two groups, one end of the two groups first ball groove 11 and the two groups second ball groove 14 are all provided with switching groove 13, and the first ball groove 11 and the second ball groove 14 are communicated through switching groove 13;

[0029] Transmission gear 8, one side of telescopic rod 2 is provided with rotary motor 9, one side output end of rotary motor 9 is fixedly connected with transmission gear 8, and one side of rotary motor 9 is fixedly connected with wire 10.

[0030] Need to explain: in need of short transmission distance according to the use case, the connection of the telescopic rod 2 and the sleeve 1 can be driven to be close, the ball 12 is rolled to the end of the ball groove 11 on one side, the telescopic rod 2 is driven to rotate by the rotating motor 9, and the ball 12 at the end of the ball groove 11 is driven to roll to the shorter rolling groove 11 through the switching groove 13, so that the transmission distance of the ball screw is adjusted, when the transmission distance needs to be adjusted, the output end of the rotating motor 9 can be rotated by the controller on the outside, the transmission gear 8 is driven to rotate, the sleeve gear 7 engaged and movably connected is driven to rotate, and the telescopic rod 2 is driven to rotate, so that the telescopic rod 2 is driven to rotate.

[0031] In the embodiment of the utility model, please refer to Figure 1 And Figure 3 One end of sleeve 1 is fixedly connected with fixed shaft 3, and the position of sleeve 1 can be fixed through the fixed shaft 3.

[0032] In the embodiment of the utility model, please refer to Figure 1 And Figure 3 One end of telescopic rod 2 is rotatably connected with rotating shaft 4, and the telescopic rod 2 can rotate through the rotating shaft 4.

[0033] In the embodiment of the utility model, please refer to Figure 1 And Figure 3 The two sides of fixed shaft 3 and rotating shaft 4 are fixedly connected with mounting buckle 5, and the ball screw can be installed through the mounting buckle 5.

[0034] In the embodiment of the utility model, please refer to Figure 1 And Figure 3 The other end of sleeve 1 is sleeved with limiting sleeve 6 on telescopic rod 2, and the transmission distance of the ball screw can be limited through the limiting sleeve 6.

[0035] In the embodiment of the utility model, please refer to Figure 1 And Figure 3 One side of telescopic rod 2 is sleeved with sleeve gear 7, and the telescopic rod 2 can be conveniently rotated through the sleeve gear 7.

[0036] In the embodiment of the utility model, please refer to Figure 1 And Figure 3 The transmission gear 8 is engaged with the sleeve gear 7, and the telescopic rod 2 can be driven to rotate through the transmission gear 8.

[0037] In the embodiment of the utility model, please refer to Figure 1 And Figure 3 Figure 1 Figure 3The mounting buckles 5 are fixedly connected to the fixing shaft 3 and the rotating shaft 4 in parallel from top to bottom, and the platforms can be conveniently connected through the parallel mounting buckles 5.

[0038] The working principle of the high-precision ball screw for the numerical control machine tool is as follows:

[0039] In use, first, the ball screw is installed and fixed through the mounting buckles 5, and the wire 10 is connected to the controller outside, when the transmission distance needs to be adjusted, the output end of the rotating motor 9 is controlled to rotate through the controller outside, the transmission gear 8 is driven to rotate, the sleeve gear 7 in meshing and movable connection is driven to rotate, and the telescopic rod 2 is driven to rotate, so that the telescopic rod 2 is driven to rotate, when the transmission distance needs to be shortened according to the use condition, the telescopic rod 2 and the sleeve 1 are connected to be close through the transmission structure, the ball 12 is driven to roll to one end of the ball groove 11, and after the telescopic rod 2 is driven to rotate through the rotating motor 9, the ball 12 at the end of the ball groove 11 is driven to roll to the shorter rolling groove 11 through the switching groove 13, so that the transmission distance of the ball screw is adjusted.

[0040] The above is only an embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structure or equivalent process conversion using the utility model specification and drawing contents, or direct or indirect application in other related technical fields, is also included in the patent protection range of the utility model.

Claims

1. A high-precision ball screw for a numerical control machine tool, characterized by, Include: The sleeve (1), one side of the sleeve (1) is inserted and slidingly connected with telescopic rod (2); Switching groove (13), the first ball groove (11) is set up on the inner wall of the connecting part of the sleeve (1) and telescopic rod (2), and the first ball groove (11) is set up with two groups, the second ball groove (14) is set up on the side of the inner wall of the connecting part of the sleeve (1) and telescopic rod (2) away from the first ball groove (11), and the second ball groove (14) is set up with two groups, one end of the two groups of first ball groove (11) and the two groups of second ball groove (14) are set up with switching groove (13), and the first ball groove (11) and the second ball groove (14) are communicated through the switching groove (13); Transmission gear (8), one side of the telescopic rod (2) is provided with a rotary motor (9), one side of the rotary motor (9) is fixedly connected with the output end of the transmission gear (8), and one side of the rotary motor (9) is fixedly connected with the electric wire (10).

2. The high precision ball screw for CNC machine tools according to claim 1, characterized in that, One end of the sleeve (1) is fixedly connected with the fixed shaft (3).

3. The high-precision ball screw for a numerical control machine tool according to claim 2, characterized by, One end of the telescopic rod (2) is rotatably connected with the rotating shaft (4).

4. The high-precision ball screw for a numerical control machine tool according to claim 3, characterized by The two sides of the fixed shaft (3) and the rotating shaft (4) are fixedly connected with the mounting buckle (5).

5. The high precision ball screw for CNC machine tools as claimed in claim 1, wherein, The other side of the sleeve (1) is sleeved with a limiting sleeve (6) on the telescopic rod (2).

6. The high precision ball screw for CNC machine tools according to claim 1, characterized in that, One side of the telescopic rod (2) is sleeved with a sleeve gear (7).

7. The high-precision ball screw for CNC machine tools according to claim 6, characterized by The transmission gear (8) is meshed with the sleeve gear (7).

8. The high precision ball screw for CNC machine tools as claimed in claim 4, wherein The mounting buckle (5) is fixedly connected on the two sides of the fixed shaft (3) and the rotating shaft (4) in parallel.

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