Nut raceway starting point digital display measuring tool

Abstract

The utility model discloses a nut raceway starting point digital display measuring tool, and relates to the technical field of nut detection. The device comprises a fixing base, a fixing groove, a horizontal sliding block and a supporting frame, the fixing groove is fixed to one short edge of the top of the fixing base, a nut to be detected is movably arranged in the fixing groove, the supporting frame is fixed to the top of the fixing base on the outer side of the fixing groove, and a threaded rod is connected to the center of the straight portion of the top of the supporting frame in a penetrating and threaded mode. A horizontal sliding block is arranged at the top of the fixed base on one side of the fixed groove, and horizontal sliding rails are symmetrically and movably connected to the bottom of the horizontal sliding block. By arranging the fixed base, the fixed groove, the horizontal sliding block and the supporting frame, the problems that the nut clamping position of a nut raceway starting point measuring tool is prone to deviation, the measurement accuracy is affected, and the probe is not prone to making contact with the actual rolling ball position, and the measurement accuracy of a raceway is prone to being affected are solved.

Description

Technical Field

[0001] This utility model belongs to the field of nut testing technology, and in particular relates to a digital display measuring tool for the starting point of the raceway of a nut. Background Technology

[0002] The nut raceway refers to the helical channel inside the nut that mates with the screw. It is commonly used in ball screw assemblies. The nut raceway is typically a helical groove, and its cross-sectional shape can be circular, elliptical, or other special shapes, depending on the design requirements of the ball screw assembly. The ball screw assembly achieves efficient force transmission and high-precision motion control through the rolling of balls between the nut raceway and the screw raceway. The circulating rolling of the balls within the raceway reduces friction and wear, improving transmission efficiency and accuracy. Therefore, in the use of nuts, a measuring tool is needed to measure the raceway position. However, this method still has the following drawbacks in practical use:

[0003] When the nut raceway starting point measuring tool is in operation, the nut needs to be installed on the measuring equipment. When installing the nut to be measured, it is directly clamped by a common clamp. However, the clamping structure does not have a positioning component. After the nut to be measured is clamped, errors are easily generated when measuring the starting position of the raceway, which affects the accuracy of the measurement.

[0004] Secondly, in the measurement of the nut raceway starting point measuring tool, the measuring structure needs to be placed inside the raceway for measurement and reading to determine the position of the nut raceway starting point. The measured raceway position is completed by a probe, but the probe is not easy to contact the actual rolling ball position, which can easily affect the measurement accuracy of the raceway. Utility Model Content

[0005] The purpose of this utility model is to provide a digital display measuring tool for the starting point of a nut raceway. By setting a fixed base, a fixed groove, a horizontal slider and a support frame, it solves the problems that the nut raceway starting point measuring tool is prone to deviation in the clamping position, which affects the measurement accuracy, and that the probe is not easy to contact the actual rolling ball position, which easily affects the measurement accuracy of the raceway.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model is a digital display measuring tool for the starting point of a nut raceway, including a fixed base, a fixed groove, a horizontal slider, and a support frame. The fixed groove is fixed to one short side of the top of the fixed base, and the nut to be measured is movably disposed within the fixed groove. The support frame is fixed to the top of the fixed base outside the fixed groove. A threaded rod is threaded through the center of the flat top portion of the support frame. A horizontal slider is disposed on the top of the fixed base on one side of the fixed groove. A horizontal slide rail is symmetrically and movably connected to the bottom of the horizontal slider. During operation, the fixed groove is fixedly supported by the fixed base, and the nut to be measured is supported and disposed on the fixed groove. The structure within the support frame further positions the nut to be measured within the fixed groove. The starting point of the raceway of the nut to be measured is set by the sliding of the horizontal slider.

[0008] Furthermore, a protective shell is fixed to one long side of the top of the fixed base outside the fixed groove. The protective shell is open on the side near the center of the top of the fixed base, and a grating ruler is fixed inside the protective shell. When the fixed groove is working, the grating ruler is protected by the protective shell, and the grating ruler provides feedback on the starting position through the displacement of the horizontal slider.

[0009] Furthermore, a mounting block is fixed at the bottom of the fixed groove, and the mounting block is positioned close to the horizontal slider. A positioning groove is provided on the top of the mounting block. The lower part of the nut to be tested, near the horizontal slider, is movably connected in the positioning groove, so that the position of the nut to be tested in the fixed groove is restricted during operation.

[0010] Furthermore, the horizontal slide rail is fixed to the top of the fixed base, and one end of the horizontal slider is fixed to the reading head of the grating ruler, so that the horizontal slider can only slide on the top of the fixed base.

[0011] Furthermore, a vertical slide rail is fixed to the top of the horizontal slider, and a vertical slider is movably connected to the outside of the vertical slide rail. A cantilever is fixed to the side of the vertical slider away from the vertical slide rail, and a ball is movably connected to the bottom of the cantilever at the edge away from the vertical slider. The ball is movably connected inside the nut being tested. The horizontal slider is connected to the vertical slide rail, and the cantilever on the vertical slide rail is connected to the ball. When the ball enters the starting point of the raceway of the nut being tested, the position of the raceway is determined.

[0012] Furthermore, a handle is symmetrically fixed to the upper part of the threaded rod, and a clamping seat is rotatably connected to the bottom end of the threaded rod. The clamping seat is movably connected to the support frame, and the bottom of the clamping seat abuts against the top of the nut being tested. Rotating the handle on the threaded rod causes the threaded rod and the clamping seat to rise and fall.

[0013] This utility model has the following beneficial effects:

[0014] This invention solves the problem of deviation in the clamping position of the nut raceway starting point measuring tool, which affects the measurement accuracy, by setting a fixed base, a fixed groove, and a support frame. When the nut to be measured needs to be installed on the fixed base, the nut to be measured is placed in the fixed groove and supported on the mounting block. The lower part of the end near the horizontal slider is supported in the positioning groove at the top of the mounting block. At the same time, rotating the handle drives the threaded rod to rotate, causing the clamping seat to be lowered until it contacts and presses the nut to be measured. The nut to be measured is then installed in the fixed groove at the predetermined position, making it less prone to deviation in the clamping position of the nut raceway starting point measuring tool and ensuring measurement accuracy.

[0015] This invention solves the problem of the probe of the nut raceway starting point measuring tool not easily contacting the actual rolling ball position, which easily affects the measurement accuracy of the raceway, by setting a fixed base, a fixed groove, and a horizontal slider. After the nut to be measured is installed in the fixed groove, the vertical slider is first slid on the vertical slide rail until the straight line of the cantilever center axis passes through the nut to be measured. The horizontal slider is then slid on the horizontal slide rail, causing the horizontal slider to move and drive the vertical slide rail to move, and at the same time, drive the cantilever to move into the nut to be measured. At this time, the vertical slider is then slid down until the rolling ball on the cantilever enters the starting point of the raceway of the nut to be measured. The position of the starting point of the raceway of the nut to be measured is determined by reading the digital display device connected to the grating ruler reading head. This allows the probe of the nut raceway starting point measuring tool to directly use the rolling ball to determine the actual rolling ball position, ensuring the accuracy of the raceway measurement. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 A three-dimensional view of the assembly structure of a digital display measuring tool for the starting point of a nut raceway;

[0018] Figure 2 A three-dimensional structural diagram of the fixed base;

[0019] Figure 3 This is a three-dimensional structural view of the fixing groove;

[0020] Figure 4 This is a three-dimensional diagram of the horizontal slider structure;

[0021] Figure 5 This is a three-dimensional structural diagram of the supporting frame;

[0022] Figure 6This is a three-dimensional view of the nut being tested.

[0023] Figure label:

[0024] 1. Fixed base; 101. Protective shell; 102. Grating ruler; 2. Fixed groove; 201. Mounting block; 202. Positioning groove; 3. Horizontal slider; 301. Horizontal slide rail; 302. Vertical slide rail; 303. Vertical slider; 304. Cantilever; 305. Ball bearing; 4. Support frame; 401. Threaded rod; 402. Handle; 403. Clamping seat; 5. Nut to be measured. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model. Specific Implementation Example 1

[0026] Please see Figure 1-6 This utility model is a digital display measuring tool for the starting point of a nut raceway, including a fixed base 1, a fixed groove 2, a horizontal slider 3, and a support frame 4. The fixed groove 2 is fixed at one short side of the top of the fixed base 1. The fixed base 1 is supported on the worktable and is used to fix the fixed groove 2, the horizontal slider 3, and the support frame 4. The nut to be measured 5 is movably arranged in the fixed groove 2. The nut to be measured 5 is movably connected in the fixed groove 2. The support frame 4 is fixed at the top of the fixed base 1 outside the fixed groove 2. When the support frame 4 is working, a threaded rod 401 is threadedly connected in it. The threaded rod 401 is threaded through the center of the flat part at the top of the support frame 4. When the threaded rod 401 rotates, it drives the clamping seat 403 to rise and fall. The horizontal slider 3 is arranged at the top of the fixed base 1 on one side of the fixed groove 2. The bottom of the horizontal slider 3 is symmetrically and movably connected to a horizontal slide rail 301. The horizontal slider 3 is supported on the fixed base 1 and moves on the horizontal slide rail 301, which drives the ball 305 to change position in the nut to be measured 5.

[0027] Specifically, a protective shell 101 is fixed to one long side of the top of the fixed base 1 outside the fixed groove 2. The protective shell 101 is open on one side near the center of the top of the fixed base 1, and a grating ruler 102 is fixed inside the protective shell 101. The protective shell 101 on the fixed base 1 protects the grating ruler 102. The position of the starting point of the raceway of the nut 5 being measured is measured by the grating ruler 102. The data end of the reading head of the grating ruler 102 is connected to the digital display device.

[0028] Furthermore, a mounting block 201 is fixed at the bottom of the fixed groove 2, and the mounting block 201 is positioned close to the horizontal slider 3. A positioning groove 202 is provided on the top of the mounting block 201. The lower part of the nut to be tested 5 near the horizontal slider 3 is movably connected in the positioning groove 202. When the fixed groove 2 is working, the nut to be tested 5 is movably connected through the positioning groove 202 on the mounting block 201, so that the position of the nut to be tested 5 in the fixed groove 2 is fixed.

[0029] Furthermore, a handle 402 is symmetrically fixed to the upper part of the threaded rod 401, and a clamping seat 403 is rotatably connected to the bottom end of the threaded rod 401. The clamping seat 403 is movably connected inside the support frame 4, and the bottom of the clamping seat 403 abuts against the top of the nut 5 being tested. Rotating the handle 402 causes the threaded rod 401 to rotate, causing the clamping seat 403 to rise or fall.

[0030] The operation process of this embodiment is as follows: During operation, when it is necessary to install the nut to be tested 5 on the fixed base 1, the nut to be tested 5 is placed in the fixed groove 2 and supported on the mounting block 201. The lower part of the end near the horizontal slider 3 is supported in the positioning groove 202 at the top of the mounting block 201. At the same time, the handle 402 is rotated, which drives the threaded rod 401 to rotate, so that the clamping seat 403 is driven to descend until the clamping seat 403 descends to contact the nut to be tested 5 and presses it, and then the nut to be tested 5 is installed in the fixed groove 2 at the determined position. Specific Implementation Example 2

[0031] Please see Figure 1 , 2 4, 5, 6. Based on the first specific embodiment, the horizontal slide rail 301 is fixed to the top of the fixed base 1, and one end of the horizontal slider 3 is fixed to the reading head of the grating ruler 102. When the horizontal slide rail 301 is working, by connecting to the top of the fixed base 1, the horizontal slider 3 can only slide on the top of the fixed base 1.

[0032] Specifically, a vertical slide rail 302 is fixed to the top of the horizontal slider 3. A vertical slider 303 is movably connected to the outside of the vertical slide rail 302. A cantilever 304 is fixed to the side of the vertical slider 303 away from the vertical slide rail 302. A ball bearing 305 is movably connected to the bottom edge of the cantilever 304 away from the vertical slider 303. The ball bearing 305 is movably connected inside the nut 5 being measured. When the horizontal slider 3 is working, the vertical slide rail 302 at its top is movably connected to the vertical slider 303. The vertical slider 303 changes the height of the cantilever 304 by sliding on the vertical slide rail 302.

[0033] The operation process of this embodiment is as follows: During operation, after the nut to be tested 5 is installed in the fixed groove 2, the vertical slider 303 is first slid on the vertical slide rail 302 until the straight line where the central axis of the cantilever 304 is located passes through the nut to be tested 5. The horizontal slider 3 is slid on the horizontal slide rail 301, so that the movement of the horizontal slider 3 drives the vertical slide rail 302 to move, and at the same time drives the cantilever 304 to move into the nut to be tested 5. At this time, the vertical slider 303 is slid down until the ball 305 on the cantilever 304 enters the starting point of the raceway of the nut to be tested 5. The digital display device connected to the reading head of the grating ruler 102 is used to read the value and determine the position of the starting point of the raceway of the nut to be tested 5.

[0034] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0035] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A nut race starting point digital display measuring tool, comprising a fixed base (1), a fixed groove (2), a horizontal sliding block (3) and a support frame (4), characterized in that: One short side of the top of the fixed base (1) is fixed with a fixed slot (2), and the measured nut (5) is movably arranged in the fixed slot (2), the top of the fixed base (1) outside the fixed slot (2) is fixed with a support frame (4), the top of the support frame (4) is centrally penetrated by a threaded rod (401) through screw connection, the top of the fixed base (1) on one side of the fixed slot (2) is provided with a horizontal sliding block (3), and the bottom of the horizontal sliding block (3) is symmetrically movably connected with a horizontal sliding rail (301).

2. A nut channel starting point digital display gauge according to claim 1, characterized in that: One long side of the top of the fixed base (1) outside the fixed slot (2) is fixed with a protective shell (101), the side close to the center of the top of the fixed base (1) of the protective shell (101) is provided with an opening, and the protective shell (101) is fixed with a grating ruler (102) inside.

3. A nut channel starting point digital display gauge according to claim 1, characterized in that: The bottom of the fixed slot (2) is fixed with a mounting block (201), and the mounting block (201) is arranged close to the horizontal sliding block (3), the top of the mounting block (201) is provided with a positioning groove (202), and the lower part of the measured nut (5) close to one end of the horizontal sliding block (3) is movably connected in the positioning groove (202).

4. A nut channel starting point digital display gauge according to claim 1, characterized in that: The horizontal sliding rail (301) is fixed on the top of the fixed base (1), and one end of the horizontal sliding block (3) is fixed with a reading head of the grating ruler (102).

5. A nut channel starting point digital readout gauge as claimed in claim 1 wherein: The top of the horizontal sliding block (3) is fixed with a vertical sliding rail (302), the outer side of the vertical sliding rail (302) is movably connected with a vertical sliding block (303), the side away from the vertical sliding rail (302) of the vertical sliding block (303) is fixed with a cantilever (304), the bottom of the cantilever (304) is movably connected with a rolling ball (305) away from the edge of the vertical sliding block (303), and the rolling ball (305) is movably connected in the measured nut (5).

6. A nut channel starting point digital readout gauge as claimed in claim 1 wherein: The upper part of the threaded rod (401) is symmetrically fixed with a handle (402), the bottom end of the threaded rod (401) is rotatably connected with a clamping seat (403), the clamping seat (403) is movably connected in the support frame (4), and the bottom of the clamping seat (403) abuts against the top of the measured nut (5).

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