CN209485249U - A kind of surface roughometer bracket and measuring device for surface roughness - Google Patents

Abstract

The utility model discloses a support for a surface roughness meter and a surface roughness measuring device. The support includes: an adjustment plate, an angle plate and positioning pins; the angle plate is provided with: a first connecting portion, a shaft rod and a pin hole array, The shaft is connected to the angle plate in the normal direction; the adjustment plate is provided with: a second connecting portion, a connecting hole and at least one positioning hole; there is an intersection between the central axis of the shaft and the angle plate; the pin hole The array has at least one row of pin-hole rows, and the row of pin-holes is arc-shaped, wherein the center of each pin-hole in the row of pin-holes falls on the same circular arc with the intersection as the center, and the adjacent pin-holes The center of the hole is spaced at the same angle; the shaft passes through the connection hole and is connected with the adjustment disc, the adjustment disc can rotate along the shaft, and the positioning pin is used to pass through the positioning holes and pinholes. The device includes the support, a height gauge and a surface roughness measuring instrument. The utility model is mainly used in the measurement of the surface roughness of parts.

Description

Surface roughness meter bracket and surface roughness measuring device

technical field

The utility model relates to the field of measuring tools, in particular to a support for a surface roughness meter and a surface roughness measuring device.

Background technique

The existing roughness inspection is equipped with the required surface roughness meter according to the parts to be inspected. Wherein, the surface roughness meter includes a main machine and a measuring head. When the surface roughness of a part needs to be measured, the measuring head needs to be held to contact the surface of the part at a certain angle, and the part’s surface roughness can be obtained from the main machine. Surface roughness.

However, the existing measurement method is to measure the surface roughness of the part by holding the measuring head by hand. When measuring, it will be found that it is very inconvenient to adjust the angle between the measuring head and the side surface by hand, which is inconvenient. Measure surface roughness.

Utility model content

In the first aspect, the purpose of the utility model is to provide a support for conveniently adjusting the angle between the measuring head and the side surface to be tested.

In the second aspect, the purpose of the utility model is to provide a surface roughness measuring device which is convenient for measurement.

The solution of the utility model to solve its technical problems is: first, a surface roughness meter bracket, including: an adjustment plate, an angle plate and a positioning pin; the angle plate is provided with: a first connecting part, a shaft rod and A pin hole array, the shaft is connected to the angle plate in the normal direction; the adjustment plate is provided with: a second connecting portion, a connecting hole and at least one positioning hole; there is a gap between the central axis of the shaft and the angle plate intersection point; the pin-hole array has at least one pin-hole row, and the pin-hole row is arc-shaped, wherein the center of each pin-hole in the pin-hole row falls into the same circular arc centered on the intersection point Above, the center of adjacent pin holes are spaced at the same angle; the shaft passes through the connection hole and is connected to the adjustment disc, the adjustment disc can rotate along the shaft, and the shaft The end is provided with a card part, and the size of the card part is larger than the aperture of the connecting hole; the aperture of the positioning hole is the same as that of the pin hole, and the central axis of the positioning hole is the same as the center axis of the pin hole. The axes are coincident; the positioning pin is used to pass through the positioning hole and the pin hole.

Further, the pin-hole array includes two pin-hole rows, and the adjustment disc is provided with two positioning holes, the central axis of the first positioning hole coincides with the central axis of the pin holes in the first pin-hole row, and the second positioning hole The central axis of the pin hole coincides with the central axis of the pin hole in the second pin hole row, and the distance between the hole center of any one pin hole in the first pin hole row and the intersection point is set as R, and the The distance between the hole center of any pin hole and the intersection point is set as r, the interval angle between the adjacent pin holes of the first pin hole row is set as α, and the adjacent pin holes of the second pin hole row The interval angle between them is set as β, and the stagger angle between the first pin hole row and the second pin hole row is set as γ, wherein, R>r, α=β, γ=0.5α. The arrangement of the first pin hole row and the second pin hole row is staggered, which reduces the movable unit angle of the adjustment disc and enriches the adjustable angle range of the adjustment disc.

Further, said α=10°.

Further, the number of pin holes in the first pin hole row is 11, and the number of pin holes in the second pin hole row is 11.

Further, the number of the positioning holes is the same as the number of pin holes in the pin hole array.

Further, the shaft rod is screwed to the angle plate. Easy shaft replacement.

Further, the clamping portion is screwed to the end of the shaft. When it is necessary to replace the adjustment disc, it is very convenient to directly unscrew the nut.

Further, there are multiple positioning pins. Multiple positioning pins can lock the adjustment disc and the angle disc more firmly.

Further, the angle plate is provided with a scale indicating the angle of the pin hole. User-friendly.

In the second aspect, a surface roughness measurement device includes the surface roughness meter bracket described in any one of the above technical solutions, and also includes an altimeter and a surface roughness meter, the mobile end of the altimeter is connected to the first The connecting part is connected, and the measuring head of the surface roughness measuring instrument is connected with the second connecting part.

The beneficial effect of the utility model is that, in the first aspect, the bracket is provided with a pin hole array on the angle plate, and a positioning hole is set on the adjustment plate, the adjustment plate and the angle plate are connected through a shaft, and the positioning hole of the adjustment plate The relative movement with the pin hole array, and then the positioning pin is used to fix the rotation angle of the adjustment disc. It is convenient to adjust the angle of the adjusting disc, and then to facilitate the angle adjustment of the measuring head.

In the second aspect, the surface roughness measuring device utilizes the surface roughness meter bracket, which facilitates the angle adjustment of the measuring head. It is convenient to measure the roughness of the surface of the part.

Description of drawings

In order to illustrate the technical solutions in the embodiments of the present invention more clearly, the following will briefly describe the accompanying drawings that are used in the description of the embodiments. Apparently, the drawings described are only some embodiments of the utility model, not all embodiments, and those skilled in the art can also obtain other designs and drawings according to these drawings without creative work.

Fig. 1 is the schematic diagram of the three-dimensional structure of the surface roughness meter support;

Fig. 2 is a three-dimensional structural schematic diagram of an angle plate;

Fig. 3 is the structural representation of the pin hole array in the angle plate;

Fig. 4 is a schematic diagram of the three-dimensional structure of the adjustment disc;

Fig. 5 is a state diagram of the support when it is working and a schematic structural diagram of the surface roughness measuring device.

Detailed ways

The idea, specific structure and technical effects of the present utility model will be clearly and completely described below in conjunction with the embodiments and accompanying drawings, so as to fully understand the purpose, characteristics and effects of the present utility model. Apparently, the described embodiments are only some of the embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, other embodiments obtained by those skilled in the art without paying creative efforts, All belong to the protection scope of the utility model. In addition, all the connection/connection relationships mentioned in this article do not refer to the direct connection of components, but mean that a better connection structure can be formed by adding or reducing connection accessories according to specific implementation conditions. The various technical features in the invention can be combined interactively on the premise of not conflicting with each other.

With reference to Fig. 1, Fig. 2, Fig. 3 and Fig. 4, a surface roughness meter bracket includes: an adjustment plate 100, an angle plate 200 and a positioning pin 300; the angle plate 200 is provided with: a first connecting portion 210, a shaft A rod 220 and a pin hole array, the shaft 220 is connected to the angle plate 200 in a normal direction; the normal connection means that the shaft 220 is vertically connected to the angle plate 200 . The adjusting plate 100 is provided with: a second connecting portion 110, a connecting hole 130 and at least one positioning hole 120; there is an intersection between the central axis of the shaft 220 and the angle plate 200; the pin hole array has at least one row of pins The hole row, the pin hole row is arc-shaped, wherein the center of each pin hole of the pin hole row falls on the same circular arc with the intersection point as the center, and the center of the adjacent pin holes The same angle at intervals; the shaft 220 is connected to the adjustment disc 100 through the connection hole 130, the adjustment disc 100 can rotate along the shaft 220, and the end of the shaft 220 is provided with a clamp part (not shown), the size of the clamping part is greater than the aperture of the connecting hole 130; the aperture of the positioning hole 120 is the same as the aperture of the pin hole, and the central axis of the positioning hole 120 is the same as that of the pin The central axes of the holes are coincident, wherein the central axis of the positioning hole 120 refers to a line passing through the center of the positioning hole 120 and perpendicular to the opening of the positioning hole 120, the center of the pin hole The axis refers to a line passing through the center of the pin hole and perpendicular to the opening of the pin hole; the positioning pin 300 is used to pass through the positioning hole 120 and the pin hole.

Referring to Fig. 5, this bracket is used as an accessory tool for measuring the surface roughness of parts. When the surface roughness of parts needs to be measured, the mobile end 910 of the altimeter 900 can be connected with the first connecting part 210, and the surface roughness The measuring head 800 of the measuring instrument is connected with the second connecting part 110. When measuring a part, the moving end 910 of the altimeter 900 moves up and down, driving the bracket to move up and down, thereby approaching the measuring part.

The pin hole array on the angle plate 200 provides an adjustment angle range, and each pin hole corresponds to an angle value. When the adjustment plate 100 is rotated, the positioning holes 120 on the adjustment plate 100 move relative to the pin hole array, and the measuring head is driven by the adjustment plate 100. Next, rotate at a unit angle in turn, and the unit angle refers to the interval angle between two adjacent pin holes in the pin hole row. When the measuring head rotates to a required certain angle, the positioning hole 120 is communicated with the pin hole of the corresponding angle at this time, and the positioning pin 300 is inserted from the communicating positioning hole 120 and the pin hole (the positioning pin is shown in the form of an arrow in Fig. 1 300 into the positioning hole 120 and the pin hole), lock the angle plate 200 and the adjustment plate 100, fix the rotation angle of the measuring head 800, and facilitate the measurement of the surface roughness of the part.

In the embodiment of the present disclosure, the shaft 220 is connected to the angle plate 200 in the normal direction. That is, the shaft 220 is perpendicular to the body of the angle plate 200 . In order to replace and install the shaft rod 220 , as a preferred embodiment, the shaft rod 220 is screwed to the angle plate 200 .

The pinhole row includes several pinholes, and the several pinholes are arranged in an arc shape, and the arrangement and distribution of the several pinholes follow the following method: the central axis of the shaft 220 and the angle plate 200 The intersection point between them is used as the center of the circle, and the center of each pin hole in the pin hole row all falls on the same circular arc where the intersection point is the center of the circle, and the center of the adjacent pin holes are spaced at the same angle. Each pin hole in the pin hole row represents an angle value, and the entire pin hole row represents the rotatable angle range of the adjustment disc 100 . Wherein, the central axis of the shaft 220 refers to the geometric center line passing through the two end surfaces of the shaft 220 . As a preferred embodiment, the pin hole array includes two pin hole rows, which are respectively the first pin hole row 240 and the second pin hole row 250, and the adjustment plate 100 is provided with two positioning holes 120, which are respectively the first pin hole row 240 and the second pin hole row 250. A positioning hole and a second positioning hole, the central axis of the first positioning hole coincides with the central axis of the pin hole of the first pin hole row 240, the central axis of the second positioning hole coincides with the central axis of the second pin hole row 250, Set the distance between the hole center of any one pin hole of the first pin hole row 240 and the intersection point as R, and set the distance between the hole center of any one pin hole of the second pin hole row 250 and the intersection point As r, the first pin hole row 240 and the second pin hole row 250 are staggered, the interval angle between adjacent pin holes of the first pin hole row 240 is set to α, and the second pin hole row The interval angle between the adjacent pin holes of 250 is set as β, and the stagger angle between the first pin hole row 240 and the second pin hole row 250 is set as γ, wherein, R>r, α=β, γ= 0.5α, α is 10°, γ=5°. It can be seen that the intersection point between the first pin hole row 240 and the central axis of the shaft 220 and the angle plate 200 is relatively far away, and the center axis and angle between the second pin hole row 250 and the shaft 220 The intersection points between the discs 200 are relatively close. By setting the first pin hole row 240 and the second pin hole row 250 staggered in this way, the movable unit angle of the adjusting disc 100 is reduced, and the adjustable angle range of the adjusting disc 100 is enriched.

As a preferred embodiment, the number of pin holes in the first pin hole row 240 is eleven, and the number of pin holes in the second pin hole row 250 is eleven. In this way, the adjustment angles of the first pin hole row 240 then have: 0°, 10°, 20°, 30°, 40°, 50°, 60°, 70°, 80°, 90°, 100°, because the first The second pin hole row 250 is staggered with the first pin hole row 240, so the adjustment angles of the second pin hole row 250 are: 5°, 15°, 25°, 35°, 45°, 55°, 65°, 75° , 85°, 95°, 105°. For easier positioning, the number of positioning holes 120 is the same as the number of pin holes in the pin hole array. Of course, the number of positioning holes 120 has increased, and the number of positioning pins 300 can also be one. A plurality of positioning pins 300 can lock the angle plate 200 and the adjustment plate 100 more stably, and avoid locking between the angle plate 200 and the adjustment plate 100. shake between.

For the preference of any one of the above-mentioned embodiments, the clamping part is located at the end of the shaft 220, and the clamping part can block the adjustment disc 100, so that the adjustment disc 100 and the angle disc 200 form a combination, and the adjustment disc is placed 100 loose. Wherein, the clamping portion may be a nut, and the outer diameter of the nut is larger than the diameter of the connection hole 130 of the adjustment disc 100 . The nut is threadedly connected to the end of the shaft rod 220 , and through the threaded connection, when the adjusting disc 100 needs to be replaced, the nut can be unscrewed directly, which is very convenient.

As for the preference of any one of the above embodiments, the angle plate 200 is provided with a scale 211 for marking the angle of the pin hole. The scale 211 is arranged on the side wall of the angle plate 200,

With reference to Fig. 5, a kind of surface roughness measuring device comprises the surface roughness meter support described in any one embodiment, also comprises altimeter 900 and surface roughness measuring instrument, the mobile end 910 of described altimeter is connected with the first The part 210 is connected by threads, and the measuring head 800 of the surface roughness measuring instrument is connected with the second connecting part 110 .

Since the surface roughness measuring device has the surface roughness meter support, it also has the beneficial effects of the surface roughness meter support, which will be described in detail here.

The preferred embodiments of the present utility model have been specifically described above, but the present invention is not limited to the described embodiments, and those skilled in the art can also make various equivalent modifications without violating the spirit of the present utility model Or replacement, these equivalent modifications or replacements are all included in the scope defined by the claims of the present application.

Claims (10)

1. a kind of surface roughometer bracket characterized by comprising adjustment plate, angle scale and positioning pin；

The angle scale is equipped with: first connecting portion, shaft and pin hole array, and the shaft is connect with the angle scale normal direction；

The adjustment plate is equipped with: second connecting portion, connecting hole and at least one location hole；

There is intersection point between the central axes and angle scale of the shaft；

The pin hole array is arranged with an at least charge off hole, and the pin hole column are in arcuation, wherein each pin of the pin hole column The hole heart in hole is each fallen within using the intersection point to be spaced identical angle between the hole heart of adjacent pin hole on the same circular arc in the center of circle Degree；

The shaft passes through the connecting hole and connect with the adjustment plate, and the adjustment plate can be rotated along the shaft, the axis The end of bar is equipped with card division, and the size of the card division is greater than the aperture of the connecting hole；

The aperture of the location hole is identical as the aperture of the pin hole, the central axes of the central axes of the location hole and the pin hole It is overlapped；

The positioning pin is used for across the dowel hole and pin hole.

2. surface roughometer bracket according to claim 1, which is characterized in that the pin hole array includes two charge off holes Column, the adjustment plate are set there are two location hole, and the central axes of first positioning hole are overlapped with the central axes of pin hole in the first pin hole column, The central axes of second location hole are overlapped with the central axes of pin hole in the second pin hole column, by any one pin hole of the first pin hole column The distance between intersection point described in Kong Xinyu is set as R, will be between intersection point described in the Kong Xinyu of any one pin hole of the second pin hole column Distance be set as r, by the first pin hole column adjacent pin hole between interval angles be set as α, by the second pin hole arrange adjacent pin hole Between interval angles be set as β, by the first pin hole column the second pin hole column between offset angular be set as γ, wherein R > r, α =beta, gamma=0.5 α.

3. surface roughometer bracket according to claim 2, which is characterized in that α=10 °.

4. surface roughometer bracket according to claim 3, which is characterized in that the pin hole quantity of the first pin hole column It is 11, the pin hole quantity of the second pin hole column is 11.

5. surface roughometer bracket according to claim 4, which is characterized in that the quantity of the location hole and the pin The quantity of pin hole is identical in hole array.

6. surface roughometer bracket according to claim 1-5, which is characterized in that the shaft and the angle Scale is threadedly coupled.

7. surface roughometer bracket according to claim 1-5, which is characterized in that the card division and the axis The end thread of bar connects.

8. surface roughometer bracket according to claim 5, which is characterized in that the positioning pin is multiple.

9. surface roughometer bracket according to claim 1-5, which is characterized in that the angle scale is equipped with Identify the graduated scale of pin hole angle.

10. a kind of measuring device for surface roughness, which is characterized in that including surface roughometer bracket described in claim 1, It further include altimeter and surfagauge, the mobile terminal of the altimeter is connect with first connecting portion, and the surface is thick The measuring head of rugosity measuring instrument is connect with second connecting portion.