Turning ball screw clearance detection device

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By designing a ball screw clearance detection device including a base, support base, lead screw and force sensor, the problems of complex structure and poor convenience of the existing device are solved, and high-precision and convenient clearance detection are achieved, simplifying the Maintenance and material handling.

CN119268632AInactive Publication Date: 2025-01-07WUXI NO 2 BEARING

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Patent Information

Application Number: CN202411397681.X
Authority / Receiving Office: CN · China
Patent Type: Applications(China)
Current Assignee / Owner
Filing Date: 2024-10-09
Publication Date: 2025-01-07
Estimated Expiration: Not applicable · inactive patent

AI Technical Summary

Technical Problem

The existing ball screw clearance detection device has a complex structure, which leads to inconvenience in maintenance and maintenance, and is inconvenient when loading and unloading the lead screw, affecting the speed and accuracy of the detection.

Method used

A steering ball screw clearance detection device is designed, using base, support seat, lead screw, wire seat, draw rope, force sensor, slide cylinder and nut fixing seat, etc., and the slide table is positioned by supporting seat, and the slide table is The cylinder has power sensors and drawstrings to achieve axial and radial clearance detection, and quickly obtain and store materials through sliders and sliders.

Benefits of technology

It improves the accuracy and convenience of detection, can detect play at multiple nodes, simplifies the subsequent maintenance and maintenance process, facilitates and quickly retrieves materials, and enhances the stability and parameter adequacy of detection.

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Abstract

The invention relates to the technical field of ball screw clearance detection, in particular to a steering ball screw clearance detection device which comprises a base, a supporting seat is installed on the left side of the top end of the base, a lead screw is installed at the top end of the supporting seat, and screw seats are arranged at the front end and the rear end of the lead screw. A pull rope is installed on the end side of the screw seat, a roller rotationally connected with the base is installed on the end side of the pull rope, and a force sensor is arranged at the side end, away from the screw seat, of the pull rope. The sliding seat is placed and stored at the cavity opening, the sliding seat and the sliding strip move to be used for sliding and displacing the sliding seat and changing the position of the sliding seat, after the sliding seat laterally moves, a ball screw part to be detected is inserted into the penetrating opening of the sliding seat, and materials can be conveniently and rapidly taken and stored.

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Description

Technical Field

[0001] The invention relates to the technical field of ball screw clearance detection, and in particular to a steering ball screw clearance detection device. Background Art

[0002] The ball screw is an ideal product for converting rotary motion into linear motion, or converting linear motion into rotary motion. When the ball screw is tested, the clearance of the ball screw will be tested. This detection device is used to detect the clearance of the ball screw.

[0003] During the ball screw clearance detection, the axial and radial clearances of the ball screw need to be detected. However, due to the complex structure of ordinary clearance detection devices, the device body is bloated, and the convenience during subsequent inspection and maintenance is poor. At the same time, when the screw is loaded and unloaded to the device body, the convenience is also poor, which is not conducive to the rapid removal of the screw from the device body. Summary of the invention

[0004] The purpose of the present invention is to provide a steering ball screw clearance detection device.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] The cam is provided with a toothed plate at the top end thereof, and a toothed plate is provided at the bottom end thereof, and a toothed plate is provided at the bottom end thereof, and a toothed plate is provided at the bottom end thereof, and a toothed plate is provided at the bottom end thereof, and a toothed plate is provided at the bottom end thereof, and a toothed plate is provided at the bottom end thereof,

[0007] Preferably, the base and the support base are fixedly connected, and three support bases are provided, and the support bases are distributed at equal distances with respect to the end wall of the base.

[0008] Preferably, the lead screw and the lead screw seat are fixedly connected.

[0009] Preferably, the wire seat and the pull rope are fixedly connected, and the pull rope and the force sensor are fixedly connected.

[0010] Preferably, the slide cylinder and the force sensor are transmitted to each other, and the slide cylinder and the base are fixedly connected to each other.

[0011] Preferably, the base is fixedly connected to the nut fixing seat and the displacement sensor.

[0012] Preferably, the base and the slide bar are fixedly connected, and the slide bar and the slide seat are movably connected.

[0013] Preferably, the mesh holes and storage grooves are connected, and the through openings are distributed at equal distances with respect to the end wall of the slide seat.

[0014] Preferably, the slide seat is snap-connected with the sealing plate via a slot, and the storage cavity and the slot are communicated with each other.

[0015] The present invention has at least the following beneficial effects:

[0016] 1. The nut is positioned by the support seat and the screw, which is convenient for subsequent detection of stable clearance. The three support seats are used to detect the axial clearance at the three nodes of one quarter, one half and three quarters of the screw respectively, so that the clearance at the three positions of the screw can be detected, and the parameters during the detection are more sufficient. Similarly, the three nut fixing seats are also used to support the radial clearance at the three nodes of one quarter, one half and three quarters of the screw, with higher measurement accuracy;

[0017] 2. The two slide cylinders located at the front and rear ends of the left side of the base are operated separately to drive the force sensor to move, and the pull rope is driven to move through the force sensor. The pull rope pulls the wire seat, and an axial force is applied to the screw through the wire seat to detect the clearance between the screw and the nut. Similarly, the slide cylinders located at the front and rear ends of the right end of the base are operated to detect the clearance between the nut and the screw placed at the nut fixing seat. The three nut fixing seats and three support seats place the nuts at three different positions respectively, which makes it convenient to detect multiple clearances of the screw parts and improves the accuracy of detection.

[0018] 3. The slide is placed and stored through the cavity. The slide and the slide bar are movable and used to slide the slide to change the position of the slide. After the slide moves sideways, the through-mouth of the slide is used to insert the ball screw part to be inspected, which is convenient for quick access to materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying any creative work.

[0020] Figure 1 It is a schematic diagram of the present invention;

[0021] Figure 2 for Figure 1 A schematic front view of the cavity and the slide seat;

[0022] Figure 3 for Figure 1 A three-dimensional schematic diagram of a slide;

[0023] Figure 4 for Figure 1 A three-dimensional schematic diagram of a slide and a sealing plate;

[0024] Figure 5 for Figure 2 An enlarged schematic diagram of point A.

[0025] In the figure: 1. base; 2. support seat; 3. lead screw; 4. thread seat; 5. pull rope; 6. roller; 7. slide cylinder; 8. force sensor; 9. nut fixing seat; 10. displacement sensor; 11. cavity opening; 12. slide bar; 13. slide seat; 14. mesh; 15. storage groove; 16. through-opening; 17. slot; 18. storage cavity; 19. sealing plate; 20. nut. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0027] See also Figure 1-5 The present invention provides a technical solution for a steering ball screw clearance detection device:

[0028] Embodiment 1:

[0029] like Figure 1-5 As shown, a steering ball screw clearance detection device includes a base 1, a support base 2 is installed on the left side of the top of the base 1, a screw 3 is installed on the top of the support base 2, a wire seat 4 is arranged at both the front and rear ends of the screw 3, a pull rope 5 is installed on the end side of the wire seat 4, a roller 6 rotatably connected to the base 1 is installed on the end side of the pull rope 5, a force sensor 8 is installed on the side end of the pull rope 5 away from the wire seat 4, a slide cylinder 7 is installed on the bottom end of the force sensor 8, and a nut fixing seat is installed on the top right end of the base 1 9 and a displacement sensor 10, a cavity 11 is provided on the lower left end wall of the base 1, a slide bar 12 is installed on the end wall of the base 1 close to the cavity 11, a slide seat 13 is installed on the end side of the base 1, a mesh 14 is provided on the side end wall of the slide seat 13, a storage groove 15 is provided on the bottom end wall of the slide seat 13, a through hole 16 is penetrated through the top end wall of the slide seat 13, a slot 17 and a storage cavity 18 are provided on the left side of the top of the slide seat 13, a sealing plate 19 is installed on the inner side of the slot 17, and a nut 20 is installed on the end side of the lead screw 3.

[0030] Embodiment 2:

[0031] Based on the first embodiment, Figure 1 and Figure 2 As shown, the base 1 and the support seat 2 are fixedly connected, and three support seats 2 are provided, and the support seats 2 are equidistantly distributed with respect to the end wall of the base 1, the lead screw 3 and the wire seat 4 are fixedly connected, the wire seat 4 and the pull rope 5 are fixedly connected, and the pull rope 5 is fixedly connected to the force sensor 8, and the nut 20 is positioned by the support seat 2 and the screw member, which is convenient for subsequent detection of stable detection clearance, and the three support seats 2 are used to respectively detect the axial clearance at three nodes of one quarter, one half, and three quarters of the lead screw 3, so that the clearances at three positions of the lead screw 3 are all detected, and the parameters during detection are more sufficient. Similarly, the three nut fixing seats 9 are also used to support the radial clearance at three nodes of one quarter, one half, and three quarters of the lead screw 3, and the measurement accuracy is higher;

[0032] Based on the first embodiment, Figure 1 and Figure 4 As shown, the slide cylinder 7 and the force sensor 8 are driven by each other, and the slide cylinder 7 and the base 1 are fixedly connected, and the base 1 is fixedly connected to the nut fixing seat 9 and the displacement sensor 10. The two slide cylinders 7 located at the front and rear ends of the left side of the base 1 are respectively operated to drive the force sensor 8 to move, and the pull rope 5 is driven to move through the force sensor 8. The pull rope 5 pulls the wire seat 4, and an axial force is applied to the screw 3 through the wire seat 4 to detect the clearance between the screw 3 and the nut 20. Similarly, the slide cylinder 7 located at the front and rear sides of the right end of the base 1 is operated to detect the clearance between the nut 20 and the screw 3 placed at the nut fixing seat 9. The three nut fixing seats 9 and the three support seats 2 place the nut 20 at three different positions respectively, so as to facilitate the detection of multiple clearances of the screw 3 and improve the accuracy of the detection. Among them, the force sensor 8 and the displacement sensor 10 are used to detect the displacement parameters of the screw 3.

[0033] Based on the first embodiment, Figure 3 As shown, the base 1 and the slide bar 12 are fixedly connected, and the slide bar 12 and the slide seat 13 are movably connected, the mesh 14 and the storage slot 15 are connected, and the through openings 16 are equidistantly distributed with respect to the end wall of the slide seat 13. The slide seat 13 is placed and stored through the cavity 11. The slide seat 13 and the slide bar 12 are movable to slide and displace the slide seat 13 to change the position of the slide seat 13. After the slide seat 13 moves sideways, the through opening 16 of the slide seat 13 is used to insert the ball screw component to be inspected, so as to facilitate and quickly retrieve materials, and the storage slot 15 is used to support the inserted ball screw component;

[0034] Based on the first embodiment, Figure 5As shown, the slide 13 is connected with the sealing plate 19 through the slot 17, and the storage chamber 18 and the slot 17 are connected. The sealing plate 19 is connected with the slot 17 and disassembled to open and close the storage chamber 1. After the dry powder is added to the storage chamber 1, it is ventilated through the mesh 14, which is used to dry and protect the end wall of the ball screw to prevent the material from getting damp.

[0035] Working principle: The nut 20 is positioned by the support seat 2 and the screw part to facilitate the subsequent detection of stable detection clearance, and the three support seats 2 are used to respectively detect the axial clearance at the three nodes of one quarter, one half and three quarters of the screw 3, so that the clearances at the three positions of the screw 3 can be detected, and the parameters during detection are more sufficient. Similarly, the three nut fixing seats 9 are also used to support the radial clearances at the three nodes of one quarter, one half and three quarters of the screw 3, and the measurement accuracy is higher. The two slide cylinders 7 located at the front and rear ends of the left side of the base 1 are respectively operated to drive the force sensor 8 to move, and the pull rope 5 is driven to move through the force sensor 8. The pull rope 5 pulls the wire seat 4, and an axial force is applied to the screw 3 through the wire seat 4 to detect the clearance between the screw 3 and the nut 20. Similarly, the slide cylinders 7 located at the front and rear sides of the right end of the base 1 are operated to detect the clearance placed on the nut fixing seat. The clearance between the nut 20 and the screw 3 at the fixed seat 9, and the three nut fixing seats 9 and the three supporting seats 2, make the nut 20 be placed at three different positions respectively, so as to facilitate the detection of multiple clearances of the screw 3 and improve the accuracy of the detection. Among them, the force sensor 8 and the displacement sensor 10 are used to detect the displacement parameters of the screw 3. The slide 13 is placed and stored through the cavity opening 11. The slide 13 and the slide bar 12 are movable and used to slide the displacement slide 13 to change the position of the slide 13. After the slide 13 moves sideways, the through-mouth 16 of the slide 13 is used to insert the ball screw component to be inspected, so as to facilitate the quick retrieval of materials. The storage groove 15 is used to support the inserted ball screw component, which is disassembled and connected with the slot 17 through the sealing plate 19, and is used to open and close the storage chamber 1. After the dry powder is added to the storage chamber 1, it is ventilated through the mesh 14, which is used to dry and protect the end wall of the ball screw component to prevent the material from getting damp.

[0036] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A steering ball screw clearance detection device, comprising a base (1), characterized in that: A support seat (2) is installed on the left side of the top of the base (1), a lead screw (3) is installed on the top of the support seat (2), a wire seat (4) is installed at both the front and rear ends of the lead screw (3), a pull rope (5) is installed on the end side of the wire seat (4), a roller (6) rotatably connected to the base (1) is installed on the end side of the pull rope (5), a force sensor (8) is installed on the side of the pull rope (5) away from the wire seat (4), a slide cylinder (7) is installed on the bottom end of the force sensor (8), a nut fixing seat (9) and a displacement sensor (10) are installed on the right end of the top of the base (1), The lower left end wall of the base (1) is provided with a cavity opening (11), the end wall of the base (1) close to the cavity opening (11) is installed with a slide bar (12), the end side of the base (1) is installed with a slide seat (13), the side end wall of the slide seat (13) is provided with a mesh hole (14), the bottom end wall of the slide seat (13) is provided with a storage groove (15), the top end wall of the slide seat (13) is penetrated with a through opening (16), the top left side of the slide seat (13) is provided with a slot (17) and a storage cavity (18), the inner side of the slot (17) is installed with a sealing plate (19), and the end side of the lead screw (3) is installed with a nut (20).

2. A steering ball screw clearance detection device according to claim 1, characterized in that: The base (1) and the support base (2) are fixedly connected, three support bases (2) are provided, and the support bases (2) are distributed at equal distances with respect to the end wall of the base (1).

3. A steering ball screw clearance detection device according to claim 1, characterized in that: The lead screw (3) and the lead screw seat (4) are fixedly connected.

4. A steering ball screw clearance detection device according to claim 1, characterized in that: The wire seat (4) and the pull rope (5) are fixedly connected, and the pull rope (5) and the force sensor (8) are fixedly connected.

5. A steering ball screw clearance detection device according to claim 1, characterized in that: The slide cylinder (7) and the force sensor (8) are in transmission with each other, and the slide cylinder (7) and the base (1) are fixedly connected with each other.

6. A steering ball screw clearance detection device according to claim 1, characterized in that: The base (1) is fixedly connected to the nut fixing seat (9) and the displacement sensor (10).

7. A steering ball screw clearance detection device according to claim 1, characterized in that: The base (1) and the slide bar (12) are fixedly connected, and the slide bar (12) and the slide seat (13) are movably connected.

8. A steering ball screw clearance detection device according to claim 1, characterized in that: The mesh holes (14) and the storage grooves (15) are connected to each other, and the through openings (16) are distributed at equal distances with respect to the end wall of the sliding seat (13).

9. A steering ball screw clearance detection device according to claim 1, characterized in that: The sliding seat (13) is clamped with the sealing plate (19) via the slot (17), and the storage cavity (18) and the slot (17) are communicated with each other.