Auxiliary device of handheld roughness measuring instrument

Abstract

The invention provides a handheld roughness measuring instrument auxiliary device. The handheld roughness measuring instrument auxiliary device comprises a base, a lifting platform and a clamp platform. A threaded hole A is formed in one end of the base, and a sliding rail groove A is formed in the other end; the lifting platform comprises a lifting rod, a platform A and a roughness measuring instrument; the bottom of the lifting rod is connected with the threaded hole A, the lifting rod is connected with the platform A, the platform A is provided with a groove B, and the roughness measuring instrument is fixed in the groove B through a threaded rod B and a pressing plate; the clamp platform comprises a sliding rail and a platform B; the sliding rail is mounted in the sliding rail groove A and is connected with the platform B; the platform B is provided with a sliding rail groove B. Two clamping blocks are embedded in the sliding rail groove B. The threaded rod A is screwed into the threaded hole B in the platform B to push the clamping blocks to clamp the target part. The method is not only suitable for measuring small parts and large parts, but also suitable for measuring curved surfaces, grooves and irregular surfaces, accurate data can be obtained, and meanwhile the measuring efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of roughness detection, and in particular relates to an auxiliary device of a handheld roughness measuring instrument. Background Art

[0002] In the process of mechanical manufacturing, it is often necessary to measure the roughness of the surface of parts. Sometimes large parts are encountered, sometimes small parts are encountered, and there are curved surfaces, grooves and irregular test surfaces. At present, the most widely used instrument is the handheld roughness meter, but its use also has certain limitations. For example, it is impossible to obtain relatively flat surfaces when measuring curved surfaces, grooves and small and medium-sized parts. Therefore, it is impossible to obtain accurate data or even impossible to measure. Summary of the invention

[0003] The purpose of the present invention is to provide a handheld roughness measuring instrument auxiliary device which solves the limitations of the existing handheld roughness measuring instruments and the problem that accurate data cannot be obtained or even measurement cannot be performed on special surfaces.

[0004] A handheld roughness meter auxiliary device comprises a base, a lifting platform and a fixture platform; a threaded hole A is provided at one end of the base, and a slide rail groove A is provided at the other end; the lifting platform comprises a lifting rod, platform A and a roughness meter; the bottom of the lifting rod is connected to the threaded hole A, the lifting rod is connected to platform A, platform A is provided with a groove B, and the roughness meter is fixed in the groove B through the threaded rod B and a pressure plate; the fixture platform comprises a slide rail and platform B; the slide rail is installed in the slide rail groove A, and the slide rail is connected to platform B; platform B is provided with a slide rail groove B, and two clamping blocks are nested in the slide rail groove B, and the target part is clamped by pushing the clamping block through the threaded rod A screwed into the threaded hole B on the platform B.

[0005] Furthermore, the lifting rod is sleeved with a sleeve and fixed by a tightening knob, the sleeve is connected to the platform A through an axial steering shaft, the axial steering shaft is provided with a damping ball joint, and the up and down tilt angle of the platform A is adjusted through the damping ball joint.

[0006] Furthermore, a universal ball joint is provided above the slide rail, and the angle of platform B is adjusted by the universal ball joint.

[0007] Furthermore, an anti-collision rubber pad is adhered to the surface of the clamping block to prevent the parts from being damaged when the clamping platform clamps the parts.

[0008] Furthermore, the top end of the threaded rod A is a hemispherical surface to prevent the clamping block from being damaged during the tightening of the threaded rod.

[0009] Furthermore, the slide rail groove A is a trapezoidal groove.

[0010] Furthermore, the pressing plate is provided with an anti-collision rubber pad.

[0011] The beneficial effects of the present invention are:

[0012] The present invention can measure the surface roughness of small parts with irregular shapes, curved surfaces, and grooves through the horizontal adjustment of the fixture platform on the base slide rail groove A and the universal adjustment of the fixture platform itself, in conjunction with the height adjustment of the lifting platform; the present invention is not only suitable for small parts and large parts, but also for the measurement of curved surfaces, grooves and irregular surfaces, and can obtain accurate data while improving measurement efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the base of the present invention;

[0014] Figure 2 It is a schematic diagram of the fixture platform of the present invention;

[0015] Figure 3 It is a schematic diagram of the lifting platform of the present invention.

[0016] In the figure: 1. base plate, 2. slide rail groove A, 3. threaded hole A, 4. slide rail, 5. slide rail groove B, 6. clamping block, 7. platform B, 8. universal ball joint, 9. threaded hole B, 10. threaded rod A, 11 groove A, 12. plug, 13 lifting rod, 14. tightening knob, 15. axial steering shaft, 16. platform A, 17. roughness measuring instrument, 18. pressure plate, 19. threaded rod B, 20. nut, 21. damping ball joint, 22. sleeve, 23. groove B. DETAILED DESCRIPTION

[0017] The present invention is further described below in conjunction with the accompanying drawings.

[0018] A handheld roughness measuring instrument auxiliary device comprises a base, a lifting platform and a fixture platform; a threaded hole A3 is provided at one end of the base, and a slide rail groove A2 is provided at the other end; the lifting platform comprises a lifting rod 13, a platform A16 and a roughness measuring instrument 17; the bottom of the lifting rod 13 is connected to the threaded hole A3, the lifting rod 13 is connected to the platform A16, the platform A16 is provided with a groove B23, and the roughness measuring instrument 17 is fixed in the groove B23 through a threaded rod B19 and a pressure plate 18; the fixture platform comprises a slide rail 4 and a platform B7; the slide rail 4 is installed in the slide rail groove A2 to realize the horizontal sliding of the fixture platform and can be quickly disassembled, and the slide rail 4 is connected to the platform B7; the platform B7 is provided with a slide rail groove B5 and a groove A11 for placing a roughness standard block so as to calibrate the roughness measuring instrument; plugs 12 are fixed at both ends of the slide rail groove B5, and threaded holes B9 are processed on the plug 12, which are screwed into the threaded holes B9 through the threaded rod A10 to gradually reduce the distance between the two clamping blocks 6 to clamp the parts.

[0019] Among them, the lifting rod 13 is sleeved with a sleeve 22 and fixed by a tightening button 14. The sleeve 22 is connected to the platform A16 through an axial steering shaft 15. The axial steering shaft 15 is provided with a damping ball joint 21, and the up and down tilt angle of the platform A16 is adjusted by the damping ball joint 21.

[0020] Through the above technical solution, the platform A16 in the lifting platform can adjust the axial angle of the platform A16 through the axial steering shaft 15, and at the same time adjust the up and down tilt angle of the platform A16 through the damping ball joint 21, and the platform A16 nested in the lifting rod 13 can adjust the height of the platform A16 by tightening the knob 14;

[0021] In the lifting platform, the platform A16 can rotate 360° horizontally with the lifting rod 13 as the center. The platform itself can also rotate and tilt through the axial steering axis. At the same time, the inclination angle of ±30° can be adjusted through the damping ball joint 21. The resistance of the damping ball joint 21 can bear the weight of the entire platform so as not to cause the platform to sag in the natural state.

[0022] Among them, a universal ball joint 8 is provided above the slide rail 4, and the universal ball joint 8 is fixed above the slide rail 4 through a support rod, and the angle of the platform B7 is adjusted through the universal ball joint 8.

[0023] Through the above technical solution, the angle of platform B7 can be adjusted in any direction, so that a target plane of the part clamped by the fixture platform is in a horizontal state, which is convenient for accurate measurement of roughness.

[0024] Among them, an anti-collision rubber pad is adhered to the surface of the clamping block 6 to prevent the parts from being damaged when the clamping platform clamps the parts.

[0025] The top end of the threaded rod A10 is a hemispherical surface to prevent the clamping block 6 from being damaged during the tightening of the threaded rod.

[0026] Among them, the slide rail groove A2 is a trapezoidal groove.

[0027] The above technical solution can prevent the fixture platform from falling off the base.

[0028] The pressing plate 18 is provided with a rubber pad to prevent collision.

[0029] The above technical solution is used to fix various types of handheld roughness measuring instruments to prevent the metal clamping block from damaging the instrument.

[0030] The working principle of the present invention is described in detail below:

[0031] When measuring the roughness of small parts with grooves or curved surfaces, the specific process is as follows:

[0032] Place the small irregular parts on the platform B7 in the fixture platform, and reduce the distance between the two clamping blocks 6 by the threaded rod A10 to clamp the small parts, and then use the slide rail 4 to translate the fixture platform to the bottom of the lifting platform; prevent the roughness meter 17 from being placed on the groove of the platform A16 in the lifting platform, fix the roughness meter 17 by the pressure plate 18, adjust the height of the platform A16 by tightening the knob 14, ensure that the probe of the roughness meter 17 is located near the target plane, and then adjust the angle of the platform B7 in the fixture platform to make the target surface parallel to the probe of the roughness meter 17, and finally measure accurate roughness data;

[0033] When measuring the roughness of large parts with grooves or curved surfaces, the specific process is as follows:

[0034] Remove the fixture platform from the slide groove A2 in the base, adjust the height of the platform A16 in the lifting platform so that the probe of the roughness meter 17 is near the surface to be measured of the part, and then adjust the inclination angle of the platform A16 through the damping ball joint 21 and the axial rotation axis 15 to ensure that the surface to be measured is parallel to the probe of the roughness meter 17, and finally measure accurate roughness data.

[0035] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A handheld roughness measuring instrument auxiliary device, characterized in that: The invention comprises a base, a lifting platform and a fixture platform; one end of the base is provided with a threaded hole A (3), and the other end is provided with a slide rail groove A (2); the lifting platform comprises a lifting rod (13), a platform A (16) and a roughness measuring instrument (17); the bottom of the lifting rod (13) is connected to the threaded hole A (3), the lifting rod (13) is connected to the platform A (16), the platform A (16) is provided with a groove B (23), and the roughness measuring instrument (17) is connected to the platform A (16) through the threaded rod B ( 19) and the pressure plate (18) are fixed in the groove B (23); the fixture platform includes a slide rail (4) and a platform B (7); the slide rail (4) is installed in the slide rail groove A (2), and the slide rail (4) is connected to the platform B (7); the platform B (7) is provided with a slide rail groove B (5), and two clamping blocks (6) are nested in the slide rail groove B (5), and the clamping blocks (6) are pushed to clamp the target part by screwing the threaded rod A (10) into the threaded hole B (9) on the platform B.

2. A handheld roughness measuring instrument auxiliary device according to claim 1, characterized in that: The lifting rod (13) is sleeved with a sleeve (22) and fixed by a tightening knob (14); the sleeve (22) is connected to the platform A (16) through an axial steering shaft (15); the axial steering shaft (15) is provided with a damping ball joint (21); and the up and down tilt angle of the platform A (16) is adjusted through the damping ball joint (21).

3. A handheld roughness measuring instrument auxiliary device according to claim 1, characterized in that: A universal ball joint (8) is provided above the slide rail (4), and the angle of the platform B (7) is adjusted by the universal ball joint (8).

4. A handheld roughness measuring instrument auxiliary device according to claim 1, characterized in that: An anti-collision rubber pad is adhered to the surface of the clamping block (6) to prevent damage to the parts when the clamping platform clamps the parts.

5. The handheld roughness measuring instrument auxiliary device according to claim 1, characterized in that: The top end of the threaded rod A (10) is a hemispherical surface, so as to prevent the clamping block (6) from being damaged during the tightening of the threaded rod.

6. The handheld roughness measuring instrument auxiliary device according to claim 1, characterized in that: The slide rail groove A (2) is a trapezoidal groove.

7. The handheld roughness measuring instrument auxiliary device according to claim 1, characterized in that: The pressing plate (18) is provided with an anti-collision rubber pad.

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