A mechanical parts surface roughness measuring device and its use method

Abstract

The present invention relates to a mechanical part surface roughness measuring device and a method for using the same, and belongs to the technical field of mechanical part measurement, including a mechanical part measuring stand: the mechanical part measuring stand is equipped with a height adjustment component and a mechanical part positioning component; the height adjustment component is also equipped with a surface roughness measuring device body. The mechanical part surface roughness measuring device and the method for using the same can flexibly adapt to mechanical parts of various sizes and shapes by adjusting the height of the surface roughness measuring device body, and can measure mechanical parts without replacing the detection platform, greatly improving the versatility of the measuring device of the present application. Compared with the traditional direct placement measurement, the mechanical parts of the present application can maintain a stable state on the mechanical part positioning component, reducing the influence of the part position offset on the measurement result, and the mechanical part positioning component can also be changed in size and adjust the clamping range, and has a wide range of applications.

Description

Technical Field

[0001] The present invention relates to the technical field of mechanical parts measurement, in particular to a mechanical parts surface roughness measurement device and a use method thereof. Background Art

[0002] Mechanical parts surface roughness measurement equipment is mainly used to evaluate the microscopic geometric characteristics of the part surface to determine whether its processing quality meets the design requirements

[0003] The surface roughness measurement of existing mechanical parts is mostly completed by using visual measuring equipment, and most of the visual measuring equipment is fixedly installed on the support mechanism. In the actual surface roughness measurement, the measurement height is limited by the installation height of the support mechanism. Due to the different sizes and surface shapes of mechanical parts (such as concave, convex, curved, etc.), the distance between the visual camera and the measured mechanical parts is fixed, which is easy to cause uneven light reflection, resulting in deviations in the surface roughness data collection results, which will have a negative impact on the measurement quality; at the same time, when measuring the surface roughness of existing mechanical parts, it is difficult to fix the mechanical parts well, and most of them are directly placed horizontally on the measuring table, which is easy to cause the mechanical parts to move during measurement, resulting in inaccurate measurement;

[0004] Therefore, considering the measurement stability and measurement accuracy of mechanical parts, a mechanical parts surface roughness measuring device and a method for using the same are proposed to solve the problem. Summary of the invention

[0005] In view of the shortcomings of the prior art, the present invention provides a surface roughness measuring device for mechanical parts and a method of using the same, which has the advantages of being highly adaptable to measurement of mechanical parts of different sizes, having higher measurement accuracy, and being able to stably limit the mechanical parts. It solves the problem that the distance between the existing visual camera and the mechanical parts to be measured is fixed, the positioning of the mechanical parts is not stable, and the measurement is not accurate enough.

[0006] To achieve the above object, the present invention provides the following technical solution: a mechanical parts surface roughness measuring device and a method of using the same, comprising a mechanical parts measuring stand:

[0007] The upper end surface of the mechanical parts measuring stand is formed with a measuring platform; the measuring platform of the mechanical parts measuring stand is equipped with a height adjustment component and a mechanical parts positioning component;

[0008] The height adjustment assembly is also equipped with a surface roughness measuring device body;

[0009] Wherein, the height adjustment assembly comprises two polished rods arranged on the upper end surface of the mechanical parts measuring platform, the two polished rods are arranged vertically and are slidably mounted with linear bearings, and the two linear bearings are externally sleeved with a mounting plate;

[0010] Two connecting plates are installed at the bottom of the mounting plate, a platform plate is installed at the bottom of the two connecting plates, and the two polished rods both penetrate the platform plate and are slidably connected thereto;

[0011] The mechanical parts positioning assembly includes a horizontally arranged bearing plate, a support plate is vertically installed on the upper end surface of the bearing plate, two slide rails are slidably arranged on the upper end of the support plate, and clamping heads are installed on the sides of the two slide rails. The two clamping heads are both U-shaped and their openings are arranged opposite to each other.

[0012] Furthermore, the height adjustment assembly also includes two vertical plates arranged on the upper end surface of the mechanical parts measuring platform, the upper end surfaces of the two vertical plates jointly support a top plate, and the top ends of the two light rods extend to connect with the bottom of the top plate.

[0013] Furthermore, the height adjustment assembly also includes a reciprocating motor arranged on the upper end surface of the mechanical parts measuring platform, and the output end of the reciprocating motor is connected to a threaded screw.

[0014] Furthermore, a screw nut is meshedly provided on the outside of the threaded screw, and the screw nut is embedded and installed with the platform plate.

[0015] Furthermore, the mechanical part positioning assembly also includes a base plate arranged on the upper end surface of the mechanical part measuring platform, a linear guide rail is installed on the base plate, two guide rail sliders are slidably arranged on the linear guide rail, and the bearing plate is arranged on the upper end surface of the guide rail slider and connected thereto.

[0016] Furthermore, two second guide rod cylinders are installed on the side of the support plate, and the output ends of the two second guide rod cylinders are arranged opposite to each other and are respectively connected to one of the slide rails.

[0017] Furthermore, a fixed plate is vertically arranged on the side of the bottom plate, a third guide rod cylinder is installed on the fixed plate, an output end of the third guide rod cylinder is connected to a cylinder push rod, and the other end of the cylinder push rod extends to be connected to the bearing plate.

[0018] On this basis, the present invention also provides a method of use, which comprises the following steps:

[0019] S1. Clamp the mechanical part to be measured on the mechanical part positioning assembly, and use two clamping heads arranged opposite to each other to complete the clamping and positioning of the mechanical part;

[0020] S2. When the mechanical parts are clamped, the height adjustment component is driven to adjust the height of the surface roughness measuring device body, and then the surface roughness measuring device body is adjusted and moved above the mechanical parts positioning component. At this time, the surface roughness measuring device body can perform surface roughness visual measurement on the mechanical parts clamped on the mechanical parts positioning component, thereby obtaining the surface roughness data of the mechanical parts;

[0021] S3. After the surface roughness measuring device body is measured, the surface roughness measuring device body is driven to rise, and then the mechanical part positioning assembly is adjusted to release the mechanical part. After the current mechanical part is measured, the next mechanical part can be measured repeatedly.

[0022] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0023] The surface roughness measuring device for mechanical parts and the use method thereof, in actual use, by means of the motion coordination between a plurality of components arranged in the height adjustment component and the surface roughness measuring device body, the arranged height adjustment component can drive the surface roughness measuring device body to measure the surface roughness of mechanical parts at different heights; by means of adjusting the height of the surface roughness measuring device body, the device can flexibly adapt to mechanical parts of various sizes and shapes, and can measure mechanical parts without replacing the detection platform, thus greatly improving the versatility of the measuring device of the present application; at the same time, by adjusting the measurement height of the surface roughness measuring device body, the device can detect the surface roughness of parts ranging from micro parts to large parts, and is suitable for different scenarios and various process requirements; the arranged height adjustment component is easy to operate, and can quickly adjust the measuring height of the device, thereby saving adjustment time, and is particularly suitable for scenarios where detection parts need to be frequently replaced.

[0024] The mechanical part surface roughness measuring device and the use method thereof can provide a constant and uniform clamping force by means of the mutual movement and coordination of a plurality of components arranged in a mechanical part positioning assembly, thereby avoiding the problem of part displacement or unstable clamping due to uneven manual clamping force. Meanwhile, compared with the traditional direct placement measurement, the mechanical part of the present application can maintain a stable state on the mechanical part positioning assembly, thereby reducing the influence of the part position offset on the measurement result. The mechanical part positioning assembly can also adapt to parts of various specifications and shapes by changing the size and adjusting the clamping range, and has a wide range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the overall installation structure of the present invention;

[0026] Figure 2 This is a schematic diagram of the installation structure of the height adjustment component and the surface roughness measurement component of the present invention;

[0027] Figure 3 This is a schematic diagram of the overall installation structure of the height adjustment assembly of the present invention;

[0028] Figure 4 It is a schematic diagram of the overall installation structure of the mechanical parts positioning assembly of the present invention.

[0029] In the figure: 1. Mechanical parts measuring stand; 2. Height adjustment assembly; 21. Vertical plate; 22. Top plate; 23. Polish rod; 24. Linear bearing; 25. Mounting plate; 26. Connecting plate; 27. Platform plate; 28. Reciprocating motor; 29. ​​Threaded screw; 210. Screw nut; 3. Surface roughness measuring equipment body; 4. Mechanical parts positioning assembly; 41. Bottom plate; 42. Linear guide rail; 43. Guide rail slider; 44. Loading plate; 45. Support plate; 46. Second guide rod cylinder; 47. Slide rail; 48. Clamping head; 49. Fixed plate; 410. Third guide rod cylinder; 411. Cylinder push rod. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] See also Figure 1-4 In this embodiment, a mechanical part surface roughness measuring device and a method of using the same include a mechanical part measuring stand 1:

[0032] A measuring platform is formed on the upper end surface of the mechanical part measuring stand 1; a height adjustment component 2 and a mechanical part positioning component 4 are assembled on the measuring platform of the mechanical part measuring stand 1;

[0033] The height adjustment assembly 2 is also equipped with a surface roughness measuring device body 3 .

[0034] In this embodiment, the height adjustment component 2 can drive the surface roughness measuring device body 3 to measure the surface roughness of mechanical parts at different heights; by adjusting the height of the surface roughness measuring device body 3, it can flexibly adapt to mechanical parts of various sizes and shapes, and the mechanical parts can be measured without changing the detection platform, which greatly improves the versatility of the measuring equipment of this application.

[0035] Furthermore, the set mechanical part positioning assembly 4 can provide a constant and uniform clamping force, avoiding the problem of part displacement or unstable clamping due to uneven manual clamping force. At the same time, compared with the traditional direct placement measurement, the mechanical parts of the present application can maintain a stable state on the mechanical part positioning assembly 4, reducing the impact of part position offset on the measurement results, and the set mechanical part positioning assembly 4 can also adapt to parts of various specifications and shapes by changing the size and adjusting the clamping range, and has a wide range of applications.

[0036] See also Figure 1-3 In order to adjust the height of the surface roughness measuring device body 3 so as to adapt it to different mechanical parts and measure the surface roughness thereof, the height adjustment assembly 2 in this embodiment includes two polished rods 23 arranged on the upper end surface of the mechanical part measuring stand 1, the two polished rods 23 are arranged vertically and are slidably mounted with linear bearings 24, and the two linear bearings 24 are externally sleeved with a mounting plate 25; two connecting plates 26 are installed at the bottom of the mounting plate 25, and a platform plate 27 is installed at the bottom of the two connecting plates 26, and the two polished rods 23 are penetrated The platform plate 27 is slidably connected to it; the height adjustment component 2 also includes two vertical plates 21 arranged on the upper end surface of the mechanical part measuring platform 1, and the upper end surfaces of the two vertical plates 21 jointly support the top plate 22, and the top ends of the two light rods 23 are extended to be connected to the bottom of the top plate 22; the height adjustment component 2 also includes a reciprocating motor 28 arranged on the upper end surface of the mechanical part measuring platform 1, and the output end of the reciprocating motor 28 is connected to a threaded screw 29; the threaded screw 29 is externally meshed with a screw nut 210, and the screw nut 210 is embedded and installed with the platform plate 27.

[0037] In this embodiment, when the user needs to adjust the height of the surface roughness measuring device body 3, the user first connects the reciprocating motor 28 in the height adjustment component 2 to an external power supply. At this time, the reciprocating motor 28 drives the threaded screw 29 so that the threaded screw 29 can rotate back and forth. When the threaded screw 29 rotates, it is limited by the penetration of the light rod 23 on the platform plate 27, so that the screw nut 210 engaged on the outside of the threaded screw 29 can drive the platform plate 27 to move up and down along the stroke range of the threaded screw 29. At the same time, due to the connection limit between the light rod 23 and the linear bearing 24, and the installation between the two linear bearings 24 and the mounting plate 25, the mounting plate 25 can move synchronously with the platform plate 27.

[0038] Furthermore, when the platform plate 27 is in a lifting motion, the surface roughness measuring device body 3 installed on the upper end surface of the platform plate 27 can maintain synchronous lifting motion; by adjusting the height of the surface roughness measuring device body 3, the surface roughness of parts ranging from micro parts to large parts can be measured, which is suitable for different scenarios and various process requirements. At the same time, the height-adjustable surface roughness measuring device body 3 can flexibly adapt to mechanical parts of various sizes and shapes without replacing the measuring platform, greatly improving the versatility of the equipment.

[0039] It should be noted that the reciprocating motor 28 is a prior art, its power supply connection method is a prior art, and the forward and reverse control circuit can be realized through simple programming by technicians in this field. It belongs to the common knowledge in this field. It is only used without modification, so the control method and circuit connection will not be described in detail.

[0040] See also Figure 1 and Figure 4 In order to stably clamp the mechanical parts so that they are in a stable measurement during the measurement process, the mechanical part positioning assembly 4 in this embodiment includes a horizontally arranged bearing plate 44, a support plate 45 is vertically installed on the upper end surface of the bearing plate 44, two slide rails 47 are slidably arranged on the upper end of the support plate 45, and clamping heads 48 are installed on the sides of the two slide rails 47. The two clamping heads 48 are both U-shaped and their openings are arranged opposite to each other; the mechanical part positioning assembly 4 also includes a bottom plate 41 arranged on the upper end surface of the mechanical part measuring stand 1, and a linear guide is installed on the bottom plate 41 Rail 42, two guide rail sliders 43 are slidably arranged on the linear guide rail 42, and a bearing plate 44 is arranged on the upper end surface of the guide rail slider 43 and connected with it; two second guide rod cylinders 46 are installed on the side of the support plate 45, and the output ends of the two second guide rod cylinders 46 are arranged opposite to each other and are respectively connected to one of the slide rails 47; a fixed plate 49 is vertically arranged on the side of the bottom plate 41, and a third guide rod cylinder 410 is installed on the fixed plate 49, and the output end of the third guide rod cylinder 410 is connected to a cylinder push rod 411, and the other end of the cylinder push rod 411 extends and is connected to the bearing plate 44.

[0041] In this embodiment, when the user uses the mechanical parts positioning assembly 4 to clamp the mechanical parts, the mechanical parts to be measured are placed between the two clamping heads 48, and then the two groups of second guide rod cylinders 46 are connected to the external air source, and an output air pressure value is given to the second guide rod cylinders 46. When the second guide rod cylinders 46 are driven, their output ends can drive the slide rails 47 and the clamping heads 48 to move, and by driving the two clamping heads 48 to clamp oppositely, the two clamping heads 48 set at this time can clamp and limit the mechanical parts, thereby completing the clamping and limiting of the mechanical parts.

[0042] It should be noted that after the mechanical parts are clamped, the user can also drive the support plate 45 to move, thereby further adjusting the lateral position of the mechanical parts so that they can better cooperate with the surface roughness measuring device body 3 to complete the surface roughness measurement.

[0043] On this basis, the present invention also provides a method of use, which comprises the following steps:

[0044] S1. Clamp the mechanical part to be measured on the mechanical part positioning assembly 4, and use two clamping heads 48 arranged opposite to each other to complete the clamping and positioning of the mechanical part. During this period, the user connects the two sets of second guide rod cylinders 46 to an external air source. When the second guide rod cylinders 46 are in driving, their output ends can drive the slide rails 47 and the clamping heads 48 to move, and drive the two clamping heads 48 to clamp in opposite directions.

[0045] S2. When the mechanical parts are clamped, the height adjustment component 2 is driven to adjust the height of the surface roughness measuring device body 3. Then, the surface roughness measuring device body 3 is adjusted and moved to the top of the mechanical parts positioning component 4. At this time, the surface roughness measuring device body 3 can perform a visual measurement of the surface roughness of the mechanical parts clamped on the mechanical parts positioning component 4, thereby obtaining the surface roughness data of the mechanical parts.

[0046] S3. After the surface roughness measuring device body 3 has completed the measurement, the surface roughness measuring device body 3 can be driven to rise, so that the mechanical parts are in a safe state, and then the mechanical part positioning component 4 is adjusted to release the mechanical parts. After the measurement of the current mechanical part is completed, the next mechanical part can be repeatedly measured.

[0047] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A mechanical parts surface roughness measuring device, comprising a mechanical parts measuring stand (1), characterized in that: The upper end surface of the mechanical part measuring stand (1) is formed with a measuring platform; the measuring platform of the mechanical part measuring stand (1) is equipped with a height adjustment component (2) and a mechanical part positioning component (4); The height adjustment component (2) is also equipped with a surface roughness measuring device body (3); The height adjustment assembly (2) comprises two polished rods (23) arranged on the upper end surface of the mechanical parts measuring platform (1), the two polished rods (23) are arranged vertically and are both slidably mounted with linear bearings (24), and the two linear bearings (24) are externally sleeved with a mounting plate (25); Two connecting plates (26) are installed at the bottom of the installation plate (25), a platform plate (27) is installed at the bottom of the two connecting plates (26), and the two polished rods (23) both penetrate the platform plate (27) and are slidably connected thereto; The mechanical part positioning assembly (4) comprises a horizontally arranged bearing plate (44), the upper end surface of which is vertically mounted a support plate (45), the upper end of which is slidably mounted two slide rails (47), the sides of the two slide rails (47) are both mounted with clamping heads (48), and the two clamping heads (48) are both U-shaped and their openings are arranged opposite to each other.

2. The surface roughness measuring device for mechanical parts according to claim 1, characterized in that: The height adjustment assembly (2) further comprises two vertical plates (21) arranged on the upper end surface of the mechanical parts measuring platform (1), the upper end surfaces of the two vertical plates (21) jointly support a top plate (22), and the top ends of the two light rods (23) both extend to be connected to the bottom of the top plate (22).

3. The surface roughness measuring device for mechanical parts according to claim 1, characterized in that: The height adjustment assembly (2) also includes a reciprocating motor (28) arranged on the upper end surface of the mechanical parts measuring stand (1), and the output end of the reciprocating motor (28) is connected to a threaded screw (29).

4. The surface roughness measuring device for mechanical parts according to claim 3, characterized in that: The threaded screw (29) is externally meshed with a screw nut (210), and the screw nut (210) is mounted in an embedded manner with the platform plate (27).

5. The surface roughness measuring device for mechanical parts according to claim 1, characterized in that: The mechanical part positioning assembly (4) also includes a base plate (41) arranged on the upper end surface of the mechanical part measuring platform (1), a linear guide rail (42) is installed on the base plate (41), two guide rail sliders (43) are slidably arranged on the linear guide rail (42), and the bearing plate (44) is arranged on the upper end surface of the guide rail slider (43) and is connected thereto.

6. The surface roughness measuring device for mechanical parts according to claim 1, characterized in that: Two second guide rod cylinders (46) are installed on the side of the support plate (45), and the output ends of the two second guide rod cylinders (46) are arranged opposite to each other and are respectively connected to one of the slide rails (47).

7. The surface roughness measuring device for mechanical parts according to claim 5, characterized in that: A fixed plate (49) is vertically arranged on the side of the bottom plate (41), and a third guide rod cylinder (410) is installed on the fixed plate (49). The output end of the third guide rod cylinder (410) is connected to a cylinder push rod (411), and the other end of the cylinder push rod (411) extends to be connected to the bearing plate (44).

8. A method for using a measuring device, which is implemented by using the surface roughness measuring device for mechanical parts described in any one of 1 to 9 above, characterized in that: It contains the following steps: S1, clamping the mechanical part to be measured on the mechanical part positioning assembly (4), and simultaneously using two clamping heads (48) arranged opposite to each other to complete the clamping and positioning of the mechanical part; S2. When the mechanical part is clamped, the height adjustment component (2) is driven to adjust the height of the surface roughness measuring device body (3), and then the surface roughness measuring device body (3) is adjusted and moved to the top of the mechanical part positioning component (4). At this time, the surface roughness measuring device body (3) can perform visual surface roughness measurement on the mechanical part clamped on the mechanical part positioning component (4), thereby obtaining surface roughness data of the mechanical part; S3. When the surface roughness measuring device body (3) has completed the measurement, the surface roughness measuring device body (3) is driven to rise, and then the mechanical part positioning assembly (4) is adjusted to release the mechanical part. After the measurement of the current mechanical part is completed, the next mechanical part can be repeatedly measured.

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