Coaxiality detection device

Abstract

The utility model discloses a coaxiality detection device, which comprises a first connecting seat and a second connecting seat which are oppositely distributed at two ends, at least one group of first through holes penetrating through two sides and at least one group of second through holes penetrating through two sides are oppositely arranged on the first connecting seat and the second connecting seat, and the second through holes are arranged above the first through holes; the rolling shaft is arranged in the first through hole and the second through hole of the first connecting seat and the second connecting seat and used for being connected with a product to be detected, the product to be detected is arranged above the rolling shaft in parallel, a tiny gap is formed between the product to be detected and the rolling shaft, and the end edge of one end of the rolling shaft is provided with an anti-dazzling screen. A groove-shaped switch is arranged on the first connecting seat or the second connecting seat corresponding to the rolling shaft end, and the groove-shaped switch induces an output signal through the anti-dazzling screen; and the driving motor is arranged on the outer side of the first connecting seat or the second connecting seat and is used for driving the to-be-detected product to rotate. When the device is used for detecting the coaxiality of the product, the operation is simple, the detection speed is high, the efficiency is high, and the detection precision is high.

Description

Technical Field

[0001] The utility model relates to the technical field of detection tooling, in particular to a coaxiality detection device. Background Art

[0002] Coaxiality refers to the condition in which the measured axis on the part remains in the same straight line relative to the reference axis, which is usually referred to as the degree of coaxiality. In the field of mechanics, it is usually necessary to perform coaxiality detection on shaft parts, especially the coaxiality detection of holes on parts, to ensure the accuracy of assembly and normal use. For example, in the case of sweeping robot products, the bottom of the sweeping robot is equipped with a roller brush for cleaning the bottom surface. As a shaft-type product component, the roller brush needs to be tested for coaxiality. If the coaxiality test result is unqualified, it may cause one end of the roller brush component to have too small a contact gap with the ground, causing the roller brush to be worn, and the other end to have too large a contact gap with the ground, causing the scraper brush and bristles to not be in contact with the ground, thus causing quality problems with the sweeping robot.

[0003] The prior art uses a micrometer to detect coaxiality. The micrometer is fixed at one end, the other end is aligned with the axis to be tested, and the reading is recorded. Then the micrometer is rotated 180 degrees and aligned with the same position to repeat the new reading. If the two readings are equal, it means that the two axes are in the same straight line and the coaxiality is 0. If the readings are not equal, the two axes are not in the same straight line, and the coaxiality can be calculated by the reading difference. In addition, a concentricity meter is used for detection. The two side heads of the concentricity meter are stacked at the two ends of the axis to be tested, and then the side heads are rotated to record the concentricity indication value. If the concentricity of the two axes is high, the position of the axis needs to be adjusted to minimize the indication of the probe. The prior art has problems with low detection efficiency, cumbersome operation and large detection numerical errors in the detection of coaxiality. Utility Model Content

[0004] In order to overcome the deficiencies of the prior art, the present invention proposes a coaxiality detection device, which solves the problems of low efficiency, complicated operation and low precision in coaxiality detection of the prior art detection devices.

[0005] The technical solution adopted by the utility model is: a coaxiality detection device, comprising:

[0006] A first connecting seat and a second connecting seat are relatively distributed at two ends, wherein the first connecting seat and the second connecting seat are relatively provided with at least one group of first through holes penetrating the two sides and at least one group of second through holes penetrating the two sides, and the second through holes are above the first through holes;

[0007] A roller, wherein the roller is arranged at the first through hole of the first connecting seat and the second connecting seat, the second through hole is used to connect the product to be detected, the product to be detected is parallel and above the roller, a small gap is arranged between the product to be detected and the roller, a light shielding sheet is arranged at the end edge of one end of the roller, and a slot switch is arranged at the first connecting seat or the second connecting seat corresponding to the roller end, and the slot switch senses an output signal through the light shielding sheet;

[0008] A driving motor is arranged outside the first connecting seat or the second connecting seat, and is used to drive the product to be detected to rotate.

[0009] Optionally, a position adjustment mechanism is provided at the bottom of the first connecting seat and the second connecting seat, and the position adjustment mechanism is a slider and a slide rail provided at the bottom of the first connecting seat and the second connecting seat, and a first pushing mechanism and a second pushing mechanism are respectively provided on the outer sides of the first connecting seat and the second connecting seat.

[0010] Furthermore, the first pushing mechanism is a first bracket and a first pushing cylinder arranged on the first bracket, and the first pushing cylinder pushes the first connecting seat to move on the slide rail; the second pushing mechanism is a second bracket and a second pushing cylinder arranged on the second bracket, and the second pushing cylinder pushes the second connecting seat to move on the slide rail, and the driving motor is arranged on the first bracket or the second bracket.

[0011] Furthermore, the roller includes an optical axis, a hollow cylindrical shaft tube sleeved on the optical axis and opened at both ends, a first ball bearing is sleeved between the cylindrical shaft tube and the optical axis, and both ends of the optical axis pass through the first through hole.

[0012] Optionally, a driving shaft is provided in the second through hole on the first connecting seat or the second connecting seat, a nozzle retracting connection portion for inserting the product to be inspected is provided at the front end of the driving shaft, a second synchronous wheel is provided at the rear end of the driving shaft, and a first synchronous wheel is provided on the output shaft of the driving motor, and a synchronous belt is provided on the first synchronous wheel and the second synchronous wheel.

[0013] Furthermore, a second ball bearing is sleeved between the driving shaft and the second through hole.

[0014] Optionally, a third connecting seat is arranged on the rear side of the first connecting seat or the second connecting seat where the driving shaft is arranged, a sliding block is arranged at the bottom of the third connecting seat and connected to the sliding rail, a third through hole is arranged on the third connecting seat which passes through the rear end of the driving shaft, a third ball bearing is arranged between the driving shaft and the third through hole, a pushing bracket is arranged on the front side of the third connecting seat, a fixed bracket is arranged on the rear side, a third pushing cylinder is arranged on the fixed bracket, and the pushing bracket is driven by the third pushing cylinder to drive the driving shaft to realize the nozzle retracting connection part to clamp the product to be inspected.

[0015] Furthermore, a third ball bearing is sleeved between the driving shaft and the third through hole.

[0016] Furthermore, a fisheye joint is provided on the side of the third connecting seat, and the rear end of the fisheye joint is connected to the first pushing cylinder or the second pushing cylinder.

[0017] The detection principle of the coaxiality detection of the present technical solution is to fix the shaft-shaped product to be detected on the second through hole on the first connecting seat and the second connecting seat, and drive the rotation of the product to be detected by a driving motor. Since the outer wall of the product to be detected and the outer wall of the roller are preset with a tiny gap that meets the detection requirements, when the coaxiality of the detected product is abnormal, the detected product will touch and drive the roller to rotate. The rotation of the roller will drive the shading sheet on the roller to rotate. The rotation of the shading sheet will trigger the slot switch to output a signal, thereby detecting whether the coaxiality of the detected product is qualified.

[0018] The beneficial effects of the utility model are as follows: the coaxiality detection device designed by the technical solution has fewer vulnerable parts in the structural components, and the daily maintenance of the device is simple. Compared with the existing coaxiality detection equipment and methods, the coaxiality detection of the product by the device is simple to operate, does not require special operation training, and has fast detection speed, high efficiency and high detection accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the utility model.

[0020] Figure 2 for Figure 1 An enlarged schematic diagram of the shading sheet and slot switch structure at A in FIG.

[0021] Figure 3 for Figure 1 An enlarged schematic diagram of the structure of the nozzle-shrinking joint at location B in FIG.

[0022] Figure 4 It is a schematic structural diagram of a driving shaft rod embodiment of the utility model.

[0023] Figure 5 It is a schematic diagram of the cross-sectional structure of the driving shaft rod of the utility model.

[0024] Figure 6 It is a schematic diagram of the structure of the first synchronous wheel, the second synchronous wheel and the synchronous belt of the utility model. DETAILED DESCRIPTION

[0025] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0026] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0027] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features.

[0028] It should also be noted that the directional terms such as left, right, up and down in the embodiments of the present application are merely relative concepts or are based on the normal use status of the product, and should not be considered as restrictive.

[0029] Please see attached Figures 1 to 6 , is a preferred embodiment of a coaxiality detection device, in which the device comprises:

[0030] A first connecting seat 1 and a second connecting seat 2 are disposed at opposite ends, wherein the first connecting seat 1 and the second connecting seat 2 are provided with two groups of first through holes penetrating the two sides and two groups of second through holes penetrating the two sides, and the second through holes are above the first through holes;

[0031] Two groups of rollers 3, the rollers 3 are arranged in the first through holes of the first connecting seat 1 and the second connecting seat 2, the second through holes are used to connect two groups of products to be detected 4, the two groups of products to be detected 4 are respectively arranged above the two groups of rollers 3 in parallel, and a small gap is arranged between the products to be detected 4 and the rollers 3 which are parallel and opposite to each other, and the small gap is the tolerance range value allowed by the parameters to be detected. A light shielding sheet 6 is arranged at the end edge of the left end of the roller 3, and a slot switch 7 is arranged on the first connecting seat 1 on the left side of the roller 3, and the slot switch 7 senses the output signal through the light shielding sheet 6;

[0032] The driving motor 5 is arranged outside the second connecting seat 2 and is used to drive the product to be detected 4 to rotate.

[0033] The detection principle of the coaxiality detection of the present technical solution is to fix the axial product 4 to be detected on the second through hole on the first connecting seat 1 and the second connecting seat 2, and drive the rotation of the product 4 to be detected by the driving motor 5. Since the outer wall of the product 4 to be detected and the outer wall of the roller 3 are preset with a tiny gap that meets the detection requirements, when the coaxiality of the detected product is abnormal, the detected product 4 will touch and drive the roller 3 to rotate. The rotation of the roller 3 will drive the shading sheet 6 on the roller 3 to rotate. The rotation of the shading sheet 6 will trigger the slot switch 7 to output a signal, thereby realizing the detection of whether the coaxiality of the detected product is qualified.

[0034] The device is easy to operate, does not require special training, and has fast detection speed, high efficiency and high detection accuracy. It uses the signal output of the shading sheet 6 and the slot switch 7 to achieve less interference and stable detection effect.

[0035] As a preference, refer to Figure 1 A position adjustment mechanism is provided at the bottom of the first connecting seat 1 and the second connecting seat 2. The position adjustment mechanism is a slider 9 and a slide rail 10 provided at the bottom of the first connecting seat 1 and the second connecting seat 2, and a first pushing mechanism and a second pushing mechanism are respectively provided on the outer sides of the first connecting seat 1 and the second connecting seat 2.

[0036] Preferably, the first pushing mechanism is a first bracket 11 and a first pushing cylinder 12 arranged on the first bracket 11, and the first pushing cylinder 12 pushes the first connecting seat 1 to move on the slide rail 10; the second pushing mechanism is a second bracket 13 and a second pushing cylinder 14 arranged on the second bracket 13, and the second pushing cylinder 14 pushes the second connecting seat 2 to move on the slide rail 10, and the driving motor 5 is arranged on the first bracket 11 or the second bracket 13.

[0037] Reference Figure 6 The roller 3 includes an optical axis, a hollow cylindrical shaft tube sleeved on the optical axis and opened at both ends, a first ball bearing is sleeved between the cylindrical shaft tube and the optical axis, and both ends of the optical axis pass through the first through hole.

[0038] Preferably, refer to Figures 3 to 6 A driving shaft 18 is provided in the second through hole on the second connecting seat 2, a nozzle-shrinking plug-in portion 181 for plugging into the front-end inspection product 4 is provided at the front end of the driving shaft 18, a second synchronous wheel 21 is provided at the rear end of the driving shaft 18, and a first synchronous wheel 20 is provided on the output shaft of the driving motor 5, and a synchronous belt 22 is provided on the first synchronous wheel 20 and the second synchronous wheel 21.

[0039] Preferably, a second ball bearing is sleeved between the driving shaft 18 and the second through hole.

[0040] As a method of realizing the quick clamping of the right end portion of the product 4 to be inspected by the retracted nozzle connection part 181 on the driving shaft 18, preferably, a third connecting seat 15 is arranged on the rear side of the second connecting seat 2, and a sliding block 9 is arranged at the bottom of the third connecting seat 15 to be connected with the sliding rail 10, and a third through hole is arranged on the third connecting seat 15 to pass through the rear end of the driving shaft 18, and a third ball bearing is arranged between the driving shaft 18 and the third through hole, and a pushing bracket 16 is arranged on the front side of the third connecting seat 15 and a fixed bracket 17 is arranged on the rear side, and a third pushing cylinder 19 is arranged on the fixed bracket 17, and the pushing bracket 16 is driven by the third pushing cylinder 19 to drive the driving shaft 18 to realize the retracted nozzle connection part 181 to clamp the product 4 to be inspected.

[0041] Preferably, a third ball bearing is sleeved between the driving shaft 18 and the third through hole.

[0042] Preferably, a fisheye joint 23 is provided on the side of the third connecting seat 15 , and the rear end of the fisheye joint 23 is connected to the second pushing cylinder 14 .

[0043] It should be noted that the drawings in the specification show the coaxiality detection of the roller brush product of the sweeping robot, which includes but is not limited to the coaxiality detection of the roller brush product. The position adjustment mechanism designed by this technical solution can realize the coaxiality detection of shaft products of different lengths within a certain range, which is more practical.

[0044] It should be noted that the drawings in the specification show that the coaxiality detection of two products can be realized at the same time, and it can be designed to realize the simultaneous detection of more groups of products, but it is necessary to adjust the first connecting seat 1 and the second connecting seat 2 for installing the roller 3 and the product to be detected 4, and to set more groups of sliders 9 and slide rails 10 at the bottom, etc. Figure 6 The multiple parallel synchronous wheels at one end are connected to the synchronous wheel of the driving motor 5 through a synchronous belt to achieve synchronous driving, thereby realizing synchronous detection of more groups of products.

[0045] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A coaxiality detection device, characterized in that: include: A first connecting seat (1) and a second connecting seat (2) are arranged at opposite ends, wherein the first connecting seat (1) and the second connecting seat (2) are provided with at least one group of first through holes penetrating both sides and at least one group of second through holes penetrating both sides, and the second through holes are located above the first through holes; A roller (3), wherein the roller (3) is arranged at the first through hole of the first connecting seat (1) and the second connecting seat (2), the second through hole is used to connect the product to be detected (4), the product to be detected (4) is parallel to and above the roller (3), a small gap is arranged between the product to be detected (4) and the roller (3), a light shielding sheet (6) is arranged at the end edge of one end of the roller (3), and a slot switch (7) is arranged at the first connecting seat (1) or the second connecting seat (2) corresponding to the roller end, and the slot switch (7) senses an output signal through the light shielding sheet (6); A driving motor (5), wherein the driving motor (5) is arranged outside the first connecting seat (1) or the second connecting seat (2) and is used to drive the product to be detected (4) to rotate.

2. The coaxiality detection device according to claim 1, characterized in that: A position adjustment mechanism is provided at the bottom of the first connecting seat (1) and the second connecting seat (2), wherein the position adjustment mechanism comprises a slider (9) and a slide rail (10) provided at the bottom of the first connecting seat (1) and the second connecting seat (2), and a first pushing mechanism and a second pushing mechanism are provided on the outer sides of the first connecting seat (1) and the second connecting seat (2), respectively.

3. The coaxiality detection device according to claim 2, characterized in that: The first pushing mechanism is a first bracket (11) and a first pushing cylinder (12) arranged on the first bracket (11), and the first pushing cylinder (12) pushes the first connecting seat (1) to move on the slide rail (10); the second pushing mechanism is a second bracket (13) and a second pushing cylinder (14) arranged on the second bracket (13), and the second pushing cylinder (14) pushes the second connecting seat (2) to move on the slide rail (10), and the driving motor (5) is arranged on the first bracket (11) or the second bracket (13).

4. The coaxiality detection device according to claim 3, characterized in that: The roller (3) comprises an optical axis, a hollow cylindrical shaft tube sleeved on the optical axis and open at both ends, a first ball bearing sleeved between the cylindrical shaft tube and the optical axis, and both ends of the optical axis pass through the first through hole.

5. The coaxiality detection device according to claim 4, characterized in that: The second through hole on the first connecting seat (1) or the second connecting seat (2) is provided with a driving shaft (18), the front end of the driving shaft (18) is provided with a nozzle plug-in portion (181) for plugging the product (4) to be inspected, the rear end of the driving shaft (18) is provided with a second synchronous wheel (21), the output shaft of the driving motor (5) is provided with a first synchronous wheel (20), and the first synchronous wheel (20) and the second synchronous wheel (21) are provided with a synchronous belt (22).

6. The coaxiality detection device according to claim 5, characterized in that: A second ball bearing is sleeved between the driving shaft (18) and the second through hole.

7. The coaxiality detection device according to claim 5, characterized in that: The driving shaft (18) is arranged on the first connecting seat (1) or the second connecting seat (2), and a third connecting seat (15) is arranged on the rear side of the first connecting seat (1) or the second connecting seat (2). A slider (9) is arranged at the bottom of the third connecting seat (15) and is connected to the slide rail (10). The third connecting seat (15) is provided with a third through hole passing through the rear end of the driving shaft (18), and a third ball bearing is arranged between the driving shaft (18) and the third through hole. The third connecting seat (15) is provided with a pushing bracket (16) on the front side and a fixing bracket (17) on the rear side, and a third pushing cylinder (19) is arranged on the fixing bracket (17). The third pushing cylinder (19) drives the pushing bracket (16) to drive the driving shaft (18) to realize that the nozzle plug-in part (181) clamps the product (4) to be detected.

8. The coaxiality detection device according to claim 7, characterized in that: A third ball bearing is sleeved between the driving shaft (18) and the third through hole.

9. The coaxiality detection device according to claim 7, characterized in that: A fisheye joint (23) is provided on the side of the third connecting seat (15), and the rear end of the fisheye joint (23) is connected to the first pushing cylinder (12) or the second pushing cylinder (14).

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