Coaxiality detection device

Abstract

The utility model discloses a coaxiality detection device, and relates to the technical field of coaxiality detection. The coaxiality detection device comprises a base, a plurality of abutting piece lifting assemblies, a plurality of abutting pieces, a detector supporting piece and a detector. The base is provided with a placing position, and the placing position is used for placing a cylindrical part; the abutting piece lifting assemblies and the detector supporting pieces are arranged on the base and located on the periphery of the containing position. The multiple abutting piece lifting assemblies are distributed around the placement position at intervals and connected with the multiple abutting pieces so as to be used for adjusting the heights of the multiple abutting pieces; the multiple abutting pieces are used for abutting against the first annular side face of the cylindrical piece; the detector supporting piece is connected with the detector, the detector comprises a probe, and the detector abuts against the second annular side face of the cylindrical piece through the probe. According to the invention, the coaxiality of cylindrical parts of various different models can be detected.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of coaxiality detection, in particular to a coaxiality detection device. BACKGROUND

[0002] In the process of production assembly or processing, cylindrical parts are often used as parts or workpieces. For example, cylindrical parts are used as transmission shafts or fixed shafts. The cylindrical part generally includes a connecting column and a plurality of annular sides arranged on the connecting column, and the plurality of annular sides are staggered along the axial direction of the connecting column. The coaxiality of different annular sides of the cylindrical part is an important indicator of the performance of the cylindrical part, so the coaxiality of different annular sides needs to be detected.

[0003] The existing coaxiality detection device can generally only detect the coaxiality of a plurality of annular sides with fixed positions, so the existing coaxiality detection device can only detect the coaxiality of cylindrical parts of the same model and cannot be used to detect the coaxiality of cylindrical parts of other models.

[0004] Obviously, how to provide a coaxiality detection device capable of detecting the coaxiality of cylindrical parts of multiple different models is still a technical problem that needs to be solved by those skilled in the art. Content of the utility model

[0005] Therefore, in order to solve the above technical problems, the present application provides a coaxiality detection device, which comprises a base, a plurality of abutting piece lifting assemblies, a plurality of abutting pieces, a detector support and a detector.

[0006] The base is provided with a placing position for placing a cylindrical part; the plurality of abutting piece lifting assemblies and the detector support are arranged on the base and located at the outer periphery of the placing position; the plurality of abutting piece lifting assemblies are distributed at intervals around the placing position and connected with the plurality of abutting pieces, so as to adjust the height of the plurality of abutting pieces; the plurality of abutting pieces are used for abutting with the first annular side of the cylindrical part; the detector support is connected with the detector, and the detector comprises a probe, and the detector abuts with the second annular side of the cylindrical part through the probe.

[0007] Beneficial effects: Different from the prior art, in the present application, the plurality of abutting pieces are used for abutting with the first annular side of the cylindrical part, so that the cylindrical part rotates around the axis of the first annular side when rotating. The detector abuts with the second annular side through the probe, so that when the cylindrical part rotates around the axis of the first annular side, the value related to the displacement of the probe can be obtained through the detector to indicate the coaxiality of the first annular side and the second annular side. And because the abutting piece lifting assembly can adjust the height of the abutting piece, the abutting piece can adapt to abut the first annular side of different heights, so that the coaxiality detection device can detect the coaxiality of cylindrical parts of multiple different models. BRIEF DESCRIPTION OF DRAWINGS

[0008] Figure 1 is a schematic diagram of the application scene of the coaxiality detection device of the present application, wherein the placement position is placed with a cylindrical part;

[0009] Figure 2 is a structural schematic diagram of the first example of the cylindrical part of the present application;

[0010] Figure 3 is a structural schematic diagram of the second example of the cylindrical part of the present application;

[0011] Figure 4 is an assembly structural schematic diagram of the base, the threaded column of the first abutting piece lifting assembly, the threaded column of the second abutting piece lifting assembly and the detector support of the present application; Figure 4 is a top view from the side of the base provided with the placement position.

[0012] Legend:

[0013] coaxiality detection device 10; base 100; first center point 101; second center point 102; third center point 103; first circle 104; center 1041 of the first circle 104; first triangle 105; boss 110; placement position 111; abutting piece lifting assembly 200; first abutting piece lifting assembly 200a; second abutting piece lifting assembly 200b; abutting piece 300; detector support 400; support rod 410; detector 500; probe 510; shell 520 of the detector 500; connecting part 311; abutting head 312; threaded column avoiding hole 313; threaded column 210; first adjusting nut 221; second adjusting nut 222; cylindrical part 600; first annular side surface 601; second annular side surface 602; connecting column 610; first convex ring part 620; axis 621 of the first annular side surface 601; second convex ring part 630; axis 631 of the second annular side surface 602. DETAILED DESCRIPTION

[0014] In order for those skilled in the art to better understand the technical solutions of the present application, the present application will be further described in detail below in combination with the drawings and specific embodiments. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor shall fall within the scope of protection of the present application.

[0015] Please refer to Figures 1-2The coaxiality detection device 10 of the present application is used to detect the coaxiality of the cylindrical member 600. The cylindrical member 600 can include a connecting column 610, a first protruding ring portion 620 and a second protruding ring portion 630. The first protruding ring portion 620 and the second protruding ring portion 630 are protrudingly arranged on the sidewall of the connecting column 610 and are staggered along the axial direction of the connecting column 610. The first protruding ring portion 620 has a first annular side surface 601, and the second protruding ring portion 630 has a second annular side surface 602. The coaxiality detection device 10 can be used to detect the coaxiality of the second annular side surface 602 and the first annular side surface 601.

[0016] The coaxiality detection device can include a base 100, a plurality of abutting member lifting assemblies 200, a plurality of abutting members 300, a detector support 400 and a detector 500.

[0017] The base 100 is provided with a placement site 111 for placing the cylindrical member 600. The placement site 111 can support the cylindrical member 600 so that the cylindrical member 600 is placed on the placement site 111 in a manner that the connecting column 610 is vertically arranged on the base 100. The plurality of abutting member lifting assemblies 200 and the detector support 400 are arranged on the base 100 and located outside the periphery of the placement site 111. The plurality of abutting member lifting assemblies 200 are distributed at intervals around the placement site 111 and are connected with the plurality of abutting members 300, so as to adjust the height of the plurality of abutting members 300. The plurality of abutting members 300 are used to abut against the first annular side surface 601 of the cylindrical member 600, so that the cylindrical member 600 rotates around the axis 621 of the first annular side surface 601 when rotating. The detector support 400 is connected with the detector 500, and the detector 500 includes a probe 510. The detector 500 abuts against the second annular side surface 602 of the cylindrical member 600 through the probe 510.

[0018] It should be noted that if the first annular side surface 601 extends into a ring shape around an axis, the axis is referred to as the axis 621 of the first annular side surface 601. Similarly, if the second annular side surface 602 extends into a ring shape around an axis, the axis is referred to as the axis 631 of the second annular side surface 602.

[0019] By the above manner, since the plurality of abutting members 300 are used to abut against the first annular side surface 601 of the cylindrical member 600, the cylindrical member 600 rotates around the axis 621 of the first annular side surface 601 when rotating. The detector 500 abuts against the second annular side surface 602 through the probe 510, so that when the cylindrical member 600 rotates around the axis 621 of the first annular side surface 601, the displacement of the probe 510 can be obtained through the detector 500 to indicate the coaxiality of the first annular side surface 601 and the second annular side surface 602. And since the abutting member lifting assembly 200 can adjust the height of the abutting member 300, so that the abutting member 300 can be adapted to abut against the first annular side surface 601 of different heights, thereby enabling the coaxiality detection device 10 to detect the coaxiality of cylindrical members 600 of various models.

[0020] It should be noted that the detector 500 can be a dial gauge or a micrometer gauge, but is not limited thereto.

[0021] In combination Figure 1 Referring to Figure 2 In the first example, the axis 621 of the first annular side surface 601 and the axis 631 of the second annular side surface 602 are approximately co-linearly distributed, at which time the first annular side surface 601 and the second annular side surface 602 are approximately coaxial. If the contact point of the probe 510 of the detector 500 and the second annular side surface 602 is defined as a first contact point, and the distance from the first contact point to the axis 631 of the second annular side surface 602 is defined as a first distance. Then, as the cylindrical member 600 rotates around the axis 621 of the first annular side surface 601, the first distance changes little, so that the displacement of the probe 510 is small.

[0022] In combination Figure 1 By comparison Figure 2 Referring to Figure 3 In the second example, the axis 621 of the first annular side surface 601 and the axis 631 of the second annular side surface 602 are spaced apart by a predetermined distance, at which time the first annular side surface 601 and the second annular side surface 602 are differentially coaxial. If the contact point of the probe 510 of the detector 500 and the second annular side surface 602 is defined as a first contact point, and the distance from the first contact point to the axis 631 of the second annular side surface 602 is defined as a first distance. Then, as the cylindrical member 600 rotates around the axis 621 of the first annular side surface 601, the first distance changes greatly, so that the displacement of the probe 510 is large.

[0023] By the above manner, by comparing and analyzing the first example and the second example, it can be known that the detector 500 can detect the displacement of the probe 510 to obtain a value related to the displacement of the probe 510, which is used to indicate the coaxiality of the second annular side surface 602 and the first annular side surface 601.

[0024] Optionally, asFigures 1-2 As shown, the detector support 400 comprises a support rod 410 which is vertically arranged on the base 100 and located at the outer periphery of the placement position 111. The shell 520 of the detector 500 is connected with the support rod 410, and the shell 520 of the detector 500 is vertically movable relative to the support rod 410, so that the height of the detector 500 is adjustable. In this way, the probe 510 of the detector 500 can be adapted to abut against the second annular side surface 602 of different heights, so that the coaxiality detection device 10 can detect the coaxiality of the cylindrical article 600 of various models.

[0025] For example, but not limited to, in an example, the shell of the detector 500 is provided with a damping block (not shown in the figure), which is clamped on the support rod 410 to provide damping so that the detector 500 is parked on the support rod 410. The detector 500 can overcome the damping to move vertically along the support rod 410 under vertical pulling to adjust the height of the detector 500. The shell of the detector 500 can be provided with a support rod perforation (not shown in the figure), which is sleeved on the support rod 410, and the damping block can be arranged in the support rod perforation and abut against the support rod 410.

[0026] For example, but not limited to, in another example, the shell of the detector 500 is provided with a support rod perforation (not shown in the figure), a connecting arm (not shown in the figure) and a positioning clamping block (not shown in the figure), the connecting arm is connected with the outer periphery of the support rod perforation and extends vertically to protrude from the shell 520 of the detector 500, and the positioning clamping block is arranged on the side of the connecting arm facing the support rod 410. The support rod perforation is sleeved on the support rod 410, and the support rod 410 is provided with a plurality of limiting grooves (not shown in the figure) arranged vertically along the support rod 410, and the positioning clamping block is clamped in one of the limiting grooves to provide damping so that the detector 500 is parked on the support rod 410. The detector 500 can overcome the damping to move vertically along the support rod 410 under pulling to switch to another limiting groove, but is not limited to this.

[0027] For example, but not limited to, in still another example, the coaxiality detection device 10 further comprises a sliding block and a tightening bolt, the sliding block is slidingly arranged on the support rod 410 to be vertically slidable along the support rod 410. The detector 500 is arranged on the sliding block. The sliding block is provided with a bolt perforation, the support rod 410 is provided with a threaded hole, one end of the tightening bolt is threadedly connected with the bolt perforation and the threaded hole, and the other end of the tightening bolt abuts against the sliding block to the side of the support rod 410, so that the sliding block is pressed on the support rod 410. Rotating the tightening bolt releases the other end of the tightening bolt from the sliding block, so that the height of the detector 500 can be adjusted by driving the sliding block to vertically slide relative to the support rod 410.

[0028] In other examples, the housing 520 of the detector 500 can be connected to the support rod 410 in a direction that cannot move vertically relative to the support rod 410, for example, the housing 520 of the detector 500 is welded on the support rod 410.

[0029] Optionally, as shown in Figures 1-2 The abutting piece lifting assembly 200 includes a threaded column 210, a first adjusting nut 221 and a second adjusting nut 222. The threaded column 210 is vertically arranged on the base 100, and the first adjusting nut 221 and the second adjusting nut 222 are both threadedly connected with the threaded column 210.

[0030] The abutting piece 300 includes a connecting part 311 and an abutting head 312. The connecting part 311 is provided with a threaded column avoiding hole 313, and the threaded column 210 is arranged in the threaded column avoiding hole 313. The connecting part 311 is clamped between the first adjusting nut 221 and the second adjusting nut 222. The abutting head 312 gradually reduces in the direction away from the connecting part 311, so as to abut against the first annular side surface 601.

[0031] Wherein, rotating the first adjusting nut 221 and the second adjusting nut 222 to move the first adjusting nut 221 and the second adjusting nut 222 upward in the vertical direction can drive the abutting piece 300 to move upward along the threaded column 210, so as to adjust the height of the abutting piece 300. Rotating the first adjusting nut 221 and the second adjusting nut 222 to move the first adjusting nut 221 and the second adjusting nut 222 downward in the vertical direction can drive the abutting piece 300 to move downward along the threaded column 210, so as to adjust the height of the abutting piece 300.

[0032] In the above manner, the present application has at least the following two aspects of beneficial effects. First, by manually rotating the first adjusting nut 221 and the second adjusting nut 222, the height of the abutting piece 300 can be adjusted, so as to facilitate manual adjustment of the height of the abutting piece 300. Second, compared with using an electric adjusting device to adjust the height of the abutting piece 300, the first adjusting nut 221 and the second adjusting nut 222 have a small size, which is more conducive to miniaturization and portability of the coaxiality detection device 10.

[0033] Optionally, as shown in Figures 1-2 The threaded column avoiding hole 313 extends into an elongated shape in the direction towards the abutting head 312. The threaded column avoiding hole 313 can avoid the threaded column 210 in the length direction of the threaded column avoiding hole 313, so that when the first adjusting nut 221 and the second adjusting nut 222 move away from the abutting piece 300 along the threaded column 210, the abutting head 312 can approach or move away from the placement position 111 along the length direction of the threaded column avoiding hole 313.

[0034] By the above manner, the abutting head 312 is close to or away from the placement position 111 along the length direction of the threaded column avoiding hole 313, so as to adjust the cross-sectional area of the columnar piece 600 that can be accommodated on the placement position 111. When the abutting head 312 is close to the placement position 111 along the length direction of the threaded column avoiding hole 313, the area enclosed between the abutting head 312 of the plurality of abutting pieces 300 and the probe 510 of the detector 500 is reduced, so that the cross-sectional area of the columnar piece 600 that can be accommodated on the placement position 111 is reduced. When the abutting head 312 is away from the placement position 111 along the length direction of the threaded column avoiding hole 313, the area enclosed between the abutting head 312 of the plurality of abutting pieces 300 and the probe 510 of the detector 500 is increased, so that the cross-sectional area of the columnar piece 600 that can be accommodated on the placement position 111 is increased.

[0035] Optionally, as shown in Figures 1-2 , the threaded column avoiding hole 313 can avoid the threaded column 210 in the circumferential direction of the threaded column, so that when the first adjusting nut 221 and the second adjusting nut 222 are moved away from the threaded column 210 to loosen the abutting piece 300, the connecting part 311 can rotate around the threaded column to make the abutting head 312 close to or away from the placement position 111. In this way, the angle between the extension line of the length direction of the threaded column avoiding hole 313 and the second annular side surface 602 can be adjusted, so that the length direction of the threaded column avoiding hole 313 extends along the radial direction of the second annular side surface 602, thereby making the abutting head 312 more stably abut against the second annular side surface 602.

[0036] Optionally, as shown in Figures 1-2 , the base 100 is provided with a boss 110, the placement position 111 is located on the boss 110 and is formed as a plane, and the plurality of abutting piece lifting assemblies 200 and the detector support 400 are arranged around the boss 110 at the outer periphery of the boss 110. In this way, the abutting head 312 of the plurality of abutting pieces 300 and the probe 510 of the detector 500 cooperate with each other to limit the axis 631 of the second annular side surface 602. Optionally, the placement position 111 is formed as a plane, and the flatness of the placement position 111 is not greater than 0.01 mm.

[0037] Optionally, in combination with Figures 1-2 , referring to Figure 4 , the number of abutting piece lifting assemblies 200 can be two, which are a first abutting piece lifting assembly 200a and a second abutting piece lifting assembly 200b. The center point of the connection of the first abutting piece lifting assembly 200a on the base 100 is defined as a first center point 101, the center point of the connection of the second abutting piece lifting assembly 200b on the base 100 is defined as a second center point 102, and the center point of the connection of the detector support 400 on the base 100 is defined as a third center point 103.

[0038] The circle defined by the first center point 101, the second center point 102 and the third center point 103 is a first circle 104; the triangle with the first center point 101, the second center point 102 and the third center point 103 as vertices is a first triangle 105. The first triangle 105 is an acute triangle. The center 1041 of the first circle 104 is located inside the first triangle 105 or on the side line of the first triangle 105. In this way, when the abutting heads 312 of the plurality of abutting members 300 abut the second annular side surface 602 in cooperation with the probes 510 of the detector 500, the position of the axis 631 of the second annular side surface 602 is more stable and less likely to change.

[0039] The above is only an embodiment of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation using the content of the specification and drawings, or direct or indirect application in other related technical fields, is also included in the patent protection scope of the present application.

Claims

1. A coaxiality detection device, characterized by, The coaxiality detection device comprises a base, a plurality of abutting piece lifting assemblies, a plurality of abutting pieces, a detector support and a detector; The base is provided with a placement site for placing a columnar piece; the plurality of abutting piece lifting assemblies and the detector support are arranged on the base and located at the outer periphery of the placement site; the plurality of abutting piece lifting assemblies are distributed at intervals around the placement site and connected with the plurality of abutting pieces for adjusting the height of the plurality of abutting pieces; The plurality of abutting pieces are used for abutting with the first annular side surface of the columnar piece; The detector support is connected with the detector, and the detector comprises a probe, and the detector abuts with the second annular side surface of the columnar piece through the probe.

2. The coaxiality detection device according to claim 1, characterized in that The detector support comprises a support rod which is vertically arranged on the base and located at the outer periphery of the placement site; the shell of the detector is connected with the support rod, and the shell of the detector can vertically move relative to the support rod, so that the height of the detector can be adjusted.

3. The coaxiality detection device according to claim 2, characterized in that The detector shell is provided with a damping block which abuts with the support rod to provide damping so that the detector is placed on the support rod; the detector can vertically move along the support rod by overcoming the damping under vertical pulling.

4. The coaxiality detection device of claim 1, wherein The abutting piece lifting assembly comprises a threaded column, a first adjusting nut and a second adjusting nut; the threaded column is vertically arranged on the base, and the first adjusting nut and the second adjusting nut are both threadedly connected with the threaded column; The abutting piece comprises a connecting part and an abutting head; the connecting part is provided with a threaded column avoiding hole, and the threaded column is arranged in the threaded column avoiding hole; the connecting part is clamped between the first adjusting nut and the second adjusting nut; the abutting head gradually decreases in size in the direction away from the connecting part for abutting with the first annular side surface.

5. The coaxiality detection device of claim 4, wherein The threaded column avoiding hole extends into an elongated strip in the direction towards the abutting head; the threaded column avoiding hole can avoid the threaded column in the length direction of the threaded column avoiding hole, so that when the first adjusting nut and the second adjusting nut are moved away from the threaded column to loosen the abutting piece, the abutting head can approach or move away from the placement site in the length direction of the threaded column avoiding hole.

6. The coaxiality detection device of claim 5, wherein The threaded column avoiding hole can avoid the threaded column in the circumferential direction of the threaded column, so that when the first adjusting nut and the second adjusting nut are moved away from the threaded column to loosen the abutting piece, the connecting part can rotate around the threaded column to make the abutting head approach or move away from the placement site.

7. The coaxiality detection device of claim 1, wherein The base is protrudingly provided with a boss, and the placement site is located on the boss and formed into a plane; the plurality of abutting piece lifting assemblies and the detector support are arranged around the boss and located at the outer periphery of the boss.

8. The coaxiality detection apparatus according to claim 1, characterized in that, The number of the abutting piece lifting assemblies is two, which are a first abutting piece lifting assembly and a second abutting piece lifting assembly; a center point of a connection of the first abutting piece lifting assembly on the base is a first center point, a center point of a connection of the second abutting piece lifting assembly on the base is a second center point, and a center point of a connection of the detector support on the base is a third center point; A circle passing through the first center point, the second center point and the third center point is a first circle; a triangle with the first center point, the second center point and the third center point as vertices is a first triangle; the first triangle is an acute triangle; and a center of the first circle is located inside the first triangle or on a side line of the first triangle.

9. The coaxiality detection device according to any one of claims 1 to 8, characterized in that The placement position is formed as a plane, and a flatness of the placement position is not greater than 0.01 mm.

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