CN212779020U

CN212779020U - Special measuring tool for non-uniformity of wall thickness of workpiece

Info

Publication number: CN212779020U
Application number: CN202021640349.9U
Authority: CN
Inventors: 陈文光
Original assignee: Tianjin Hbs Electromechanical Equipment Co ltd
Current assignee: Tianjin Hbs Electromechanical Equipment Co ltd
Priority date: 2020-08-07
Filing date: 2020-08-07
Publication date: 2021-03-23
Anticipated expiration: 2030-08-07

Abstract

The special measuring tool for the unevenness of the wall thickness of the workpiece comprises a supporting component and a measuring component, wherein the supporting component is rotationally connected with the measuring component, the supporting component comprises a supporting rod, a threaded rod, a positioning nut and a supporting clamping plate, the measuring component comprises a rotating bracket, a rotating rod and a first clamping ring, the rotating bracket is hinged on the supporting rod and is fixedly connected with the rotating rod, cup joint first snap ring on the dwang, first snap ring fixedly connected with vernier scale is provided with the yardstick sign on the vernier scale, the utility model discloses a supporting component and measuring subassembly provide one kind and make the measuring tool with the special measuring of the rotatory sampling point's of same centre of a circle measurement tubulose work piece wall thickness unevenness, optimize operation process and reduce because of many times fix a position the visual observation reading error that the measuring tool arouses, improved efficiency and the precision of measuring tubulose work piece wall thickness unevenness effectively.

Description

Special measuring tool for non-uniformity of wall thickness of workpiece

Technical Field

The utility model belongs to the technical field of special measuring tool technique and specifically relates to a special measuring tool of work piece wall thickness unevenness.

Background

With the development of society and the progress of science and technology, the production of a large number of pipe parts is increased sharply, a large number of measurement works are required when checking whether the pipe parts meet the production standard, because the production and processing technology of the PVC pipe is generally to extrude compression molding raw materials outside a mold with a fixed inner diameter to form, the inner diameter of a PVC tubular workpiece is smooth and has a fixed radius, when a certain type of PVC tubular workpiece is to be checked, the wall thickness unevenness of the PVC tubular workpiece is measured, and the wall thickness unevenness is (maximum wall thickness value-minimum wall thickness value)/maximum wall thickness value 100%, so that the accurate wall thickness unevenness can be calculated by collecting a plurality of wall thickness data. The existing measuring tool usually needs a worker to change the contact position of the measuring tool and a workpiece for many times, and a point reading is adopted, so that the operation is complex, the point collecting process is low in measuring efficiency, and the accuracy of obtained data is low.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art's not enough, provide a guarantee measuring component with the special measuring tool of the measuring work piece wall thickness unevenness of the rotatory sampling point in same centre of a circle.

The utility model provides a its technical problem take following technical scheme to realize:

a special measuring tool for the unevenness of the wall thickness of a workpiece comprises a supporting component and a measuring component, wherein the supporting component is rotatably connected with the measuring component and comprises a supporting rod, a threaded rod, a positioning nut and a supporting clamping plate, one end of the supporting rod is fixedly connected with the threaded rod, the other end of the supporting rod is fixedly connected with the supporting clamping plate, the threaded rod is in threaded connection with the positioning nut, and a clamping gap for clamping a tubular workpiece to be measured is formed between the supporting clamping plate and the positioning nut; the measuring component comprises a rotating support, a rotating rod and a first clamping ring, the rotating support is hinged to the supporting rod, the rotating support is fixedly connected with the rotating rod, the bottom surface of the rotating rod is located on the same plane, the rotating rod is sleeved with the first clamping ring, a vernier fixedly connected with the first clamping ring is arranged on the vernier, the vernier comprises a second clamping ring, a scale mark is arranged on the vernier, the second clamping ring is connected with the vernier in a sliding mode, a first bulge is arranged below the first clamping ring, a second convex plate is arranged below the second clamping ring, and a clamping gap used for clamping the pipe wall of the tubular workpiece to be measured is formed between the first bulge and the second convex plate.

Preferably, the first protrusion is a cylinder, and the cross section of the contact surface of the first protrusion connected with the first snap ring is tangent to the edge of the bottom surface of the first snap ring, which is close to the vernier.

Preferably, the second convex plate is a cuboid, and the top surface of the second convex plate coincides with the bottom surface of the second clamping ring.

Preferably, the end surface of the positioning nut close to the supporting rod is fixedly connected with a first anti-skid pad.

Preferably, the positioning nut is fixedly provided with an assistance bulge.

Preferably, the oil scale keep away from the one end fixed mounting who rotates the support block the arch, block the arch and hinder the second snap ring to leave the vernier.

Preferably, one side of the supporting clamping plate facing the threaded rod is fixedly provided with a second anti-skid pad.

Preferably, the supporting rod on seted up first centering hole, first centering hole makes measuring component with the supporting rod articulates in first centering hole department, rotate support bottom fixedly connected with centering pivot, centering pivot wears to establish first centering hole, centering pivot bottom fixedly connected with centering screw, centering screw threaded connection centering nut, the cross-sectional area of centering nut outer wall is greater than the cross-sectional area of first centering hole, centering screw's cross-sectional area is less than the cross-sectional area of centering pivot.

Preferably, the surface of the centering nut, which is close to the centering rotating shaft, is fixedly connected with a third anti-skidding pad.

Preferably, the support rod is provided with a plurality of first centering holes, and the first centering holes are distributed at equal intervals.

The utility model has the advantages that:

the utility model discloses a supporting component and measuring component, the tubular work piece that awaits measuring of centre gripping on the terminal surface of the tubular work piece that awaits measuring of supporting component, it is rotatory as the centre of a circle to make measuring component can use the fixed center of rotation on the supporting component, the staff grips the pipe wall of tubular work piece with first arch and second flange, the wall thickness reading on the vernier scale is read to the back, it obtains a plurality of wall thickness uneven values to rotate measuring component above-mentioned operations repeatedly again, to the rotatory sampling point of same centre of a circle can optimize the sampling point operation and reduce because fix a position repeatedly and survey the vision observation reading error that the measuring tool caused.

Drawings

FIG. 1 is a side view of the integral shaft of the present invention;

FIG. 2 is a front view of the measurement assembly;

fig. 3 is an overall plan view of the present invention;

in the figure: 1. a support assembly; 2. a measurement assembly; 3. a vernier scale; 4. a first snap ring; 5. a support bar; 6. positioning a nut; 7. a power-assisted bulge; 8. a threaded rod; 9. rotating the bracket; 10. a first protrusion; 11. a second snap ring; 13. a blocking projection; 14. a supporting clamping plate; 15. a second convex plate; 16. rotating the rod; 17. a third anti-skid pad; 18. a second non-slip mat; 19. a first non-slip mat; 20. a centering screw; 21. a centering nut; 22. a first centering hole; 23. the rotating shaft is centered.

Detailed Description

The embodiments of the present invention will be described in detail with reference to the accompanying drawings:

as shown in figure 1, the utility model comprises a supporting component 1 and a measuring component 2, the supporting component 1 is used for fixing the whole device on the end surface of a tubular workpiece to be measured, the supporting component 1 is rotationally connected with the measuring component 2, the supporting component 1 comprises a supporting rod, a threaded rod 8, a positioning nut 6 and a supporting clamping plate 14, one end of the supporting rod 5 is fixedly connected with the threaded rod 8, the other end of the supporting rod 5 is fixedly connected with the supporting clamping plate 14, the threaded rod 8 is in threaded connection with the positioning nut 6, a clamping gap for clamping the tubular workpiece to be measured is formed between the supporting clamping plate 14 and the positioning nut 6, when the supporting component 1 clamps the tubular workpiece to be measured, the positioning nut 6 is attached to the side surface of the outer wall of the tubular workpiece to be measured, and the supporting clamping plate 14 is attached to the other side surface of the outer wall of the tubular workpiece to be measured, so that the function of fixing the supporting component on the end surface of the tubular workpiece to be measured is realized.

As shown in fig. 1, when the measuring assembly 2 is used for measuring the wall thickness of a tubular workpiece, the measuring assembly 2 includes a rotating bracket 9, a rotating rod 16, and a first snap ring 4, the rotating bracket 9 is hinged on a supporting rod 5, the rotating bracket 9 is fixedly connected with the rotating rod 16, the bottom surface of the rotating rod 16 and the bottom surface of the supporting rod 5 are in the same plane, so that the contact points of the rotating rod 16 and the supporting rod 5 with the tubular workpiece to be measured are in the same plane, the state of the measuring tool is kept stable and horizontal, the rotating rod 16 is sleeved with the first snap ring 4, the first snap ring 4 is fixedly connected with a vernier 3, the vernier 3 is provided with a second snap ring 11, the second snap ring 11 is sleeved outside the vernier and the rotating rod 16, the second snap ring 11 is slidably connected with the vernier 3, the vernier 3 is provided with a scale mark, the scale mark is a scale for reading,

second snap ring

11 and 3 sliding connection of vernier scale, first snap ring 4 below is provided with first arch 10, second snap ring 11 below is provided with second flange 15, first arch 10 with form between the second flange 15 and be used for the centre gripping clearance of the pipe wall of the tubulose work piece that awaits measuring, when measuring subassembly 2 is when measuring the state, the laminating of second flange 15 the outer wall of tubulose work piece, the inner wall of the tubulose work piece of first protruding 10 laminating, the distance between first snap ring 4 and the second snap ring 11 is exactly the wall thickness of the tubulose work piece that awaits measuring, and vernier scale 3 keeps away from the one end of rotating support 9, and vernier scale 3 reading maximum value department fixed mounting promptly has and blocks arch 13, and its effect is that to block 3 scopes of roll-off vernier scale in the 11 sliding process of second snap ring, prevents to measure the utensil part disappearance.

As shown in fig. 1 and 2, the first protrusion 10 is a cylinder, the cross section of the contact surface of the first protrusion 10 connected with the first snap ring 4 is tangent to the edge of the bottom surface of the first snap ring 4 near the vernier 3, when the measuring assembly 2 measures the data of the inner wall, the first protrusion 10 is attached to the inner wall of the tubular workpiece, the first protrusion 10 is a cylinder, the inner wall of the tubular workpiece to be measured is regular circular due to the fixed inner diameter of the PVC tubular workpiece, and the side surface of the cylinder can be tangent to the inner wall of the tubular workpiece to be measured, so that the zero point of the vernier 3 determined by the first snap ring 4 is more accurate, the bottom of the second snap ring 11 is fixedly connected with the second convex plate 15, the second convex plate 15 is cuboid, the top surface of the second convex plate 15 is overlapped with the bottom surface of the second snap ring 4, the second convex plate 15 is provided with a contact point with the outer wall of the tubular workpiece to be measured, so that when a worker, the state of the second snap ring 11 is more stable, and the reading of workers is more accurate.

As shown in fig. 1, the first anti-slip pad 19 is disposed on the end surface of the positioning nut 6 close to the support rod, so that the friction force between the outer wall of the tubular workpiece to be measured and the contact surface of the positioning nut 6 is greater and more stable. The positioning nut 6 is fixedly provided with the power assisting bulge 7, so that the positioning nut 6 can be rotated more conveniently by workers. One side fixed mounting that supports cardboard 14 towards threaded rod 8 has second slipmat 18, makes the outer wall of the tubulose work piece that awaits measuring and the frictional force of supporting cardboard 14 contact surface bigger, makes the tubulose work piece that awaits measuring be difficult to take place to slide the skew, realizes that supporting component 1 stabilizes the function at tubulose work piece terminal surface.

As shown in fig. 2, a first centering hole 22 is formed in the support rod 5, as shown in fig. 1, a dotted line is drawn at a hinged position of the rotating bracket 9 and the support rod 5, a space indicated by the dotted line is a space where the first centering hole 22 is located inside the support rod 5, as shown in fig. 2, the rotating bracket 9 is fixedly connected with a centering rotating shaft 23, the centering rotating shaft 23 penetrates through the first centering hole 22, a centering screw 20 is fixedly connected to the bottom of the centering rotating shaft 23, the centering screw 20 is in threaded connection with a centering nut 21, the centering rotating shaft 23 enables the measuring component 2 and the support component 1 to rotate, the cross-sectional area of the centering screw 20 is smaller than that of the centering rotating shaft 23, so that when the measuring component 2 leaves the first centering hole 22, the thread of the centering screw 20 does not generate an obstruction effect, the cross-sectional area of the centering nut 21 is larger than that of the, make measuring component 2 can not break away from first centering hole 22 from the top, make measuring component 2 and supporting component 1's rotation more stable, realize measuring component 2 and supporting component 1 at the articulated function of first centering hole 22 position, centering nut 21 is close to fixedly connected with third proof sliding pad 17 on the face of centering pivot 23 makes centering nut 21 and measuring component 2's contact surface friction increase, connects more stably. The staff takes off centering nut 21, passes first centering hole 22 with centering screw 20 behind the rotatory measuring unit 2, installs centering nut 21 again, can realize transferring measuring unit 2 to the opposite side of supporting component 1 and carry out the wall thickness measurement, has reached the effect that increases tubulose work piece wall thickness sampling point angle range.

As shown in fig. 3, a plurality of first centering holes 22 are formed in the support rod 5, the first centering holes 22 are arranged at equal intervals, the worker takes off the centering nut 21, lifts the measuring component 2 and selects the first centering holes 22 at other positions to install the centering nut 21, the rotation of the plurality of first centering holes 22 serving as the circle center is used for sampling points, and the effects of conveniently increasing the sampling points and enabling measured data to be more accurate are achieved.

In the specific implementation, the utility model adopts the supporting component 1 and the measuring component 2, the supporting component 1 puts the supporting rod 5 on the end surface of the tubular workpiece to be measured, and the outer wall of the tubular workpiece is clamped by the supporting clamping plate 14 and the positioning nut 6, before the worker fixes the supporting component 1, the first clamping ring 4 is slid to the position close to the rotating bracket 9, the second clamping ring 11 is slid to the position close to the blocking bulge 13, thus, the first bulge 10 on the first snap ring 4 is ensured to be arranged in the pipe wall of the tubular workpiece to be measured, the second convex plate 15 on the second snap ring 11 is arranged outside the pipe wall of the tubular workpiece, after the support component 1 stably fixes the position of the support rod, a worker slides the first clamping ring 4 to drive the first protrusion 10 to be tightly attached to the inner wall of the tubular workpiece, then slides the second clamping ring 11 to drive the second convex plate 15 to be tightly attached to the outer wall of the tubular workpiece, and reads the reading on the vernier scale 3 aligned with the second clamping ring 11, namely the wall thickness of the tubular workpiece to be measured. After the first wall thickness data is measured, a worker slides the first clamping ring 4 and the second clamping ring 11, stirs the rotating rod 16 to rotate, adjusts the positions of the first clamping ring 4 and the second clamping ring 11 again to clamp the pipe wall of the tubular workpiece to be measured, performs reading for the second time, repeatedly operates, and rotates for multiple times to collect points by taking the first centering hole 22 as the circle center; the center of the rotary sampling point of the measuring assembly 2 can be changed by installing and removing the centering nut 21 and selecting the position of the first centering hole 22, more wall thickness data can be obtained, and finally, the measured wall thickness data is substituted into a formula by a worker to calculate the wall thickness unevenness of the workpiece. The process optimizes the operation process of controlling the measuring tool to collect the wall thickness data by the working personnel, reduces the error caused by changing the position of the measuring tool, and improves the accuracy of the measured data.

It should be emphasized that the embodiments described herein are illustrative and not restrictive, and thus the present invention is not limited to the embodiments described in the detailed description, but also falls within the scope of the present invention, in any other embodiments derived by those skilled in the art according to the technical solutions of the present invention.

Claims

1. The utility model provides a special measuring tool of work piece wall thickness unevenness which characterized in that: the device comprises a supporting component (1) and a measuring component (2), wherein the supporting component (1) is rotatably connected with the measuring component (2), the supporting component (1) comprises a supporting rod (5), a threaded rod (8), a positioning nut (6) and a supporting clamping plate (14), one end of the supporting rod (5) is fixedly connected with the threaded rod (8), the other end of the supporting rod (5) is fixedly connected with the supporting clamping plate (14), the threaded rod (8) is in threaded connection with the positioning nut (6), and a clamping gap for clamping a tubular workpiece to be measured is formed between the supporting clamping plate (14) and the positioning nut (6); measuring subassembly (2) is including rotating support (9), dwang (16), first snap ring (4), rotate support (9) and articulate on bracing piece (5), rotate support (9) fixed connection dwang (16), the bottom surface of dwang (16) with the bottom surface of bracing piece (5) is in the coplanar, cup joint on dwang (16) first snap ring (4), first snap ring (4) fixedly connected with vernier scale (3), vernier scale (3) are including second snap ring (11), be provided with the yardstick sign on vernier scale (3), second snap ring (11) with vernier scale (3) sliding connection, the below of first snap ring (4) is provided with first arch (10), the below of second snap ring (11) is provided with second flange (15), first arch (10) with form between the second flange (15) and be used for the centre gripping the tubulose work piece that awaits measuring The clamping gap of the tube wall.

2. The special measuring tool for the unevenness of the wall thickness of the workpiece according to claim 1, wherein: the vernier scale is characterized in that the first protrusion (10) is a cylinder, and the cross section of the contact surface of the first protrusion (10) and the first clamping ring (4) is tangent to the edge of the bottom surface of the first clamping ring (4) close to the vernier scale (3).

3. The special measuring tool for the unevenness of the wall thickness of the workpiece according to claim 1, wherein: the second convex plate (15) is a cuboid, and the top surface of the second convex plate (15) is coincided with the bottom surface of the second clamping ring (11).

4. The special measuring tool for the unevenness of the wall thickness of the workpiece according to claim 1, wherein: the end face, close to the supporting rod (5), of the positioning nut (6) is fixedly connected with a first anti-skid pad (19).

5. The special measuring tool for the unevenness of the wall thickness of the workpiece according to claim 4, wherein: and an assistance bulge (7) is fixedly arranged on the positioning nut (6).

6. The special measuring tool for the unevenness of the wall thickness of the workpiece according to claim 1, wherein: vernier scale (3) keep away from the one end fixed mounting who rotates support (9) has and blocks arch (13), block arch (13) and hinder second snap ring (11) and leave vernier scale (3).

7. The special measuring tool for the unevenness of the wall thickness of the workpiece according to claim 1, wherein: and a second anti-skid pad (18) is fixedly arranged on one side of the supporting clamping plate (14) facing the threaded rod (8).

8. The special measuring tool for the unevenness of the wall thickness of the workpiece according to claim 1, wherein: first centering hole (22) have been seted up on bracing piece (5), first centering hole (22) make measuring subassembly (2) with bracing piece (5) articulate in first centering hole (22) department, rotate support (9) bottom fixedly connected with centering pivot (23), centering pivot (23) are worn to establish first centering hole (22), centering pivot (23) bottom fixedly connected with centering screw (20), centering screw (20) threaded connection centering nut (21), the cross-sectional area of the outer wall of centering nut (21) is greater than the cross-sectional area of first centering hole (22), the cross-sectional area of centering screw (20) is less than the cross-sectional area of centering pivot (23).

9. The special measuring tool for the unevenness of the wall thickness of the workpiece according to claim 8, wherein: and a third anti-skidding pad (17) is fixedly connected to the surface, close to the centering rotating shaft (23), of the centering nut (21).

10. The special measuring tool for the unevenness of the wall thickness of the workpiece according to claim 9, wherein: the supporting rod (5) is provided with a plurality of first centering holes (22), and the first centering holes (22) are distributed at equal intervals.