CN219224115U

CN219224115U - Detection device

Info

Publication number: CN219224115U
Application number: CN202223056746.3U
Authority: CN
Inventors: 卫文杰; 程伦; 秦擎; 王强; 李云洁; 周瑜
Original assignee: Fulian Technology Jincheng Co ltd
Current assignee: Fulian Technology Jincheng Co ltd
Priority date: 2022-11-17
Filing date: 2022-11-17
Publication date: 2023-06-20
Anticipated expiration: 2032-11-17

Abstract

The utility model provides a detection device which is used for testing the connection strength of a part to be tested in a workpiece. The bearing assembly comprises a base and a bearing bracket connected with the base, the base is used for bearing a workpiece, the supporting assembly comprises a supporting piece and a supporting piece, the supporting piece is arranged on the base, the supporting piece is arranged on the supporting piece in a sliding mode and comprises a pressing piece and a driving piece, the pressing piece penetrates through the bearing bracket and is supported on the driving piece, the supporting piece is supported in the first direction, the supporting piece supports against the portion to be detected to detect, and the driving piece is connected with the bearing bracket and is used for driving the pressing piece to move at a uniform speed in the first direction. Among the above-mentioned detection device, the piece that applies pressure moves at uniform velocity downwards in order to contact with supporting the piece, avoids the effort that gravity acceleration produced to supporting the piece to improved the degree of accuracy of installation department and work piece joint strength test, and above-mentioned detection device's simple structure, low in production cost.

Description

Detection device

Technical Field

The utility model relates to the technical field of detection, in particular to a detection device.

Background

When the connection strength between the part to be tested on the workpiece and the workpiece is tested, two modes are generally adopted. One is to manually place the gravity piece directly on the part to be detected and observe whether the part to be detected is separated from the workpiece, but the mode has high labor intensity and low detection accuracy; in addition, the gravity piece is driven by the driving piece to prop against the part to be detected, and the pressure sensor is matched to observe whether the installation part can reach the required connection strength, so that the mode reduces the labor intensity, but the instantaneous pressure generated when the gravity piece is driven by the driving piece to contact the installation part requires high precision and high detection cost.

Disclosure of Invention

In view of the foregoing, it is necessary to provide a detection device that meets the detection requirements of low cost and high accuracy.

An embodiment of the present utility model provides a detection apparatus for testing connection strength of a portion to be tested in a workpiece, including:

the bearing assembly comprises a base and a bearing bracket connected with the base, and the base is used for bearing the workpiece;

the supporting component comprises a supporting piece and a supporting piece, the supporting piece is arranged on the base, and the supporting piece is arranged on the supporting piece in a sliding manner;

the pressing component comprises a pressing piece and a driving piece, wherein the pressing piece penetrates through the bearing support and is propped against the driving piece, and is used for moving along a first direction and propping against the propping piece so that the propping piece is propped against the portion to be detected to detect, and the driving piece is connected with the bearing support and is used for driving the pressing piece to move at a uniform speed along the first direction.

When the detection device works, a workpiece is placed on the base, the to-be-detected part of the workpiece corresponds to the abutting piece in the first direction, then the abutting piece is driven to abut against the to-be-detected part of the workpiece to form pre-pressing of the to-be-detected part, then the driving piece drives the pressing piece to move downwards at a uniform speed until the applying piece contacts with the abutting piece, finally the driving piece continues to move downwards and separate from the pressing piece, so that the gravity of the pressing piece completely falls on the abutting piece to form secondary pressing on the to-be-detected part, and whether the connection strength of the to-be-detected part and the workpiece is qualified is judged by observing whether the to-be-detected part is separated from the workpiece. Therefore, the detection device completes the test of the connection strength of the part to be detected and the workpiece in a mode of prepressing the part to be detected and secondarily pressing, and when the part to be detected is secondarily pressed, the pressing piece moves downwards at a uniform speed to be in contact with the supporting piece, so that acting force of gravity acceleration to the supporting piece is avoided, the accuracy of the test of the connection strength of the part to be detected and the workpiece is improved, and the detection device is simple in structure and low in production cost.

In some embodiments, the support member is provided with a sliding hole, the sliding hole penetrates through the support member along the first direction, the supporting member comprises a supporting body and a stopping body, the supporting body movably penetrates through the sliding hole, two ends of the supporting body protrude out of the sliding hole and are respectively used for supporting the portion to be tested and the pressing member, and the stopping body is connected with the supporting body and penetrates out of the sliding hole to limit the supporting body to the sliding hole.

In some embodiments, a stop groove is formed on a side wall of the sliding hole, and the stop groove is used for clamping the stop body to stop the supporting body.

In some embodiments, the pressing member includes:

the guide body is penetrated through the bearing bracket and propped against the driving piece and used for moving along the first direction and enabling one end of the guide body to prop against the propping piece;

the pressing body is detachably arranged at the other end of the guide body; wherein,,

the driving piece is used for driving the guide body to move at a uniform speed along the first direction.

In some embodiments, the driver comprises:

the driving body is connected with the bearing bracket;

the bearing body is connected with the driving body and is propped against the guide body; wherein,,

the driving body is used for driving the supporting body to drive the guiding body to move at a uniform speed along the first direction.

In some embodiments, the guiding body includes a guiding portion and a movable pin, the guiding portion is penetrating through the bearing support, one end of the guiding portion is used for supporting the supporting piece, the other end of the guiding portion is detachably connected with the pressing body, the movable pin is penetrating through the guiding portion, and two ends of the movable pin protrude out of the guiding portion respectively; the bearing body comprises a main body part and a pair of bearing parts, wherein the main body part is connected with the driving body, and the pair of bearing parts are connected with the main body part and are arranged at intervals along a second direction perpendicular to the first direction and are used for respectively bearing two ends of the movable pin.

In some embodiments, the guide portion has a polygonal cross section along the second direction, and the detection device further includes:

the shaft sleeve is sleeved on the guide part and embedded in the bearing bracket.

In some embodiments, the base is provided with a plurality of limiting bodies, the plurality of limiting bodies are arranged along the periphery of the base, the detection device further comprises a fixing piece and a clamping piece, the fixing piece is connected with the base, and the clamping piece is connected with the fixing piece and is used for propping against the workpiece to the limiting bodies.

In some embodiments, the fixing piece comprises a fixing body and a convex body, the fixing body is connected with the base, the convex body is arranged on one side, away from the base, of the fixing body, the clamping piece comprises a movable body, a linkage rod, an elastic body and a handle, the movable body is movably arranged on one side, away from the base, of the fixing body, two ends of the elastic body are respectively propped against the movable body and the convex body, one end of the linkage rod penetrates through the convex body and is connected with the movable body, the other end of the linkage rod is connected with the handle, and the handle is rotatably propped against one side, away from the movable body, of the convex body.

In some embodiments, the base comprises:

the bottom plate is connected with the bearing bracket;

the movable plate is connected with the fixing piece and the supporting piece and is used for bearing the workpiece, and the movable plate is movably arranged on the bottom plate and provided with a plurality of limiting bodies and used for driving the workpiece to move on the bottom plate so that the to-be-detected part corresponds to the supporting piece in the first direction.

Drawings

Fig. 1 is a schematic structural diagram of a detection device according to an embodiment of the present utility model.

Fig. 2 is a schematic structural view of the holding assembly in fig. 1.

Fig. 3 is an exploded view of the pressure member of fig. 1.

Fig. 4 is an exploded view of the fastener and clamp of fig. 1.

Description of the main reference signs

Detection device 10

Bearing assembly 11

Base 111

Spacing body 111a

Bottom plate 1111

Movable plate 1112

Anti-slip member 1113

Load support 112

Holding assembly 12

Support member 121

Sliding hole 121a

Stop groove 121b

Holding piece 122

Holding body 1221

Stopper 1222

Pressing assembly 13

Pressure member 131

Guide 1311

Guide 1311a

Movable pin 1311b

Pressure applying body 1312

Drive member 132

Drive body 1321

Carrier 1322

Body 1322a

Bearing part 1322b

Shaft sleeve 14

Fixing member 15

Fixing body 151

Convex body 152

Clamping member 16

Movable body 161

Linkage rod 162

Elastomer 163

Handle 164

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present utility model and are not to be construed as limiting the present utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically connected, electrically connected or can be communicated with each other; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

The embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.

Referring to fig. 1, an embodiment of the present utility model provides a testing device 10, which includes a carrying assembly 11, a supporting assembly 12 and a pressing assembly 13, and is used for testing the connection strength of a portion to be tested in a workpiece. The part to be tested can be ornaments, inserts, positioning frames and the like, the workpiece can be a mobile phone middle frame, and the part to be tested can be mounted on the workpiece in a welding, bonding and other modes.

For convenience of illustration, a three-dimensional coordinate system is added in fig. 1, specifically, the direction in which the X axis is located is the second direction, that is, the setting direction of the pair of bearing portions 1322b, the direction in which the Y axis is located is the third direction, that is, the moving direction of the movable plate 1112, and the direction in which the Z axis is located is the first direction (vertical direction), that is, the moving direction of the pressing member 131. The first direction, the second direction and the third direction are perpendicular to each other.

Referring to fig. 1, in some embodiments, the carrying assembly 11 includes a base 111 and a carrying bracket 112, the base 111 is used for carrying a workpiece, the carrying bracket 112 is connected to the base 111, the supporting assembly 12 includes a supporting member 121 and a supporting member 122, the supporting member 121 is disposed on the base 111, the supporting member 122 is slidably disposed on the supporting member 121, the pressing assembly 13 includes a pressing member 131 and a driving member 132, the pressing member 131 is disposed through the carrying bracket 112 and abuts against the driving member 132, and is used for 1 moving along a first direction and abutting against the supporting member 122, so that the supporting member 122 abuts against the portion to be detected, and the driving member 132 is connected to the carrying bracket 112 and is used for driving the pressing member 131 to move along the first direction at a uniform speed.

When the above detection device 10 works, firstly, a workpiece is placed on the base 111, and the portion to be detected of the workpiece corresponds to the supporting member 122 in the first direction, then, the supporting member 122 is driven to support the portion to be detected of the workpiece to form pre-pressing of the portion to be detected, then, the driving member 132 drives the pressing member 131 to move downwards at a uniform speed until the pressing member 131 contacts with the supporting member 122, finally, the driving member 132 continues to move downwards and separate from the pressing member 131, so that the gravity of the pressing member 131 completely falls on the supporting member 122 to form secondary pressing of the portion to be detected, and whether the connection strength between the portion to be detected and the workpiece is qualified is judged by observing whether the portion to be detected breaks away from the workpiece. Specifically, if the to-be-measured portion is separated from the workpiece, the connection strength between the surface to-be-measured portion and the workpiece is not qualified, and if the to-be-measured portion is not separated from the workpiece, the connection strength between the to-be-measured portion and the workpiece is qualified.

Therefore, the detection device 10 performs the test of the connection strength between the portion to be detected and the workpiece by pre-pressing the portion to be detected and secondarily pressing, and the pressing member 131 moves downward at a uniform speed to contact the supporting member 122 during the secondary pressing, so as to avoid the acting force of the gravity acceleration on the supporting member 122, thereby improving the accuracy of the test of the connection strength between the portion to be detected and the workpiece, and the detection device 10 has a simple structure and low production cost.

Referring to fig. 2, in some embodiments, the support 121 is provided with a sliding hole 121a, the sliding hole 121a penetrates the support 121 along a first direction, the supporting member 122 includes a supporting body 1221 and a stopping body 1222, the supporting body 1221 movably penetrates the sliding hole 121a, two ends of the supporting body 1221 protrude from the sliding hole 121a and are respectively used for supporting the portion to be tested and the pressing member 131, and the stopping body 1222 is connected to the supporting body 1221 and penetrates the sliding hole 121a to limit the supporting body 1221 in the sliding hole 121a.

In operation, the supporting body 1221 is driven to move upwards by the stop body 1222, so that a space for placing a workpiece is formed between the supporting body 1221 and the base 111, then the workpiece is placed on the base 111, the portion to be tested of the workpiece corresponds to the supporting body 1221 in the first direction, and finally the supporting body 1221 is driven to move downwards by the stop body 1222 to support the portion to be tested.

Therefore, the sliding hole 121a can guide the abutting piece 122, so that the abutting body 1221 moves along the fixed path in the first direction, thereby improving the accuracy of the abutting body 1221 abutting the portion to be tested, and further improving the detection efficiency.

Referring to fig. 2, in some embodiments, a side wall of the sliding hole 121a is provided with a stop groove 121b, and the stop groove 121b is used for clamping the stop body 1222 to stop the abutting body 1221. Illustratively, the stop groove 121b may be an arcuate groove or a linear groove.

Therefore, when not in operation, the stopper 1222 can be clamped in the stopper groove 121b, and at this time, a space for placing the workpiece is formed between the supporting body 1221 and the base 111, so as to improve the supporting efficiency of the supporting assembly 12.

Referring to fig. 1 and 3, in some embodiments, the pressing member 131 includes a guide body 1311 and a pressing body 1312. The guide body 1311 is disposed through the carrier bracket 112 and abuts against the driving member 132, so as to move along the first direction and make one end of the guide body 1311 abut against the abutting member 122, the pressing body 1312 is detachably mounted on the other end of the guide body 1311, the driving member 132 is used for driving the guide body 1311 to move at a uniform speed along the first direction, so that the guide body 1311 abuts against the abutting member 122, and after the guide body 1311 abuts against the abutting member 122, the driving member 132 continues to move downward to separate from the guide body 1311.

Illustratively, the pressing body 1312 may be a weight sleeved on the guide body 1311, and the pressing body 1312 is detachably connected with the guide body 1311, so as to facilitate replacement of pressing bodies with different weights, and meet requirements of different test strengths in the test.

Referring to fig. 1, in some embodiments, the driving member 132 includes a driving body 1321 and a carrier 1322. The driving body 1321 is connected to the bearing bracket 112 and abuts against the guiding body 1311, the bearing body 1322 is connected to the driving body 1321, and the driving body 1321 is used for driving the bearing body 1322 to drive the guiding body 1311 to move at a uniform speed along the first direction, and is also used for driving the bearing body 1322 to move downward continuously after the guiding body 1311 abuts against the abutting piece 122 so as to separate from the guiding body 1311. Illustratively, the driving body 1321 may be a linear cylinder.

Specifically, after the abutting piece 122 abuts against the portion to be tested, the driving body 1321 drives the carrier body 1322 to drive the guiding body 1311 to move downward until one end of the guiding body 1311 abuts against the abutting piece 122, the driving body 1321 continues to drive the carrier body 1322 to move downward, and then the carrier body 1322 is separated from the guiding body 1311, and at this time, the gravity of the guiding body 1311 and the pressing body 1312 all falls on the abutting piece 122.

Accordingly, the driving body 1321 and the carrier 1322 connected to the driving body 1321 can automatically lift the carrier 1322, thereby improving the pressing efficiency of the pressing assembly 13.

Referring to fig. 3, in some embodiments, the guide body 1311 includes a guide portion 1311a and a movable pin 1311b, the guide portion 1311a is disposed through the carrier bracket 112, one end of the guide portion 1311a is used for supporting the supporting member 122, the other end of the guide portion 1311a is detachably connected with the pressing body 1312, the movable pin 1311b is disposed through the guide portion 1311a, two ends of the movable pin 1311b protrude from the guide portion 1311a respectively, the carrier 1322 includes a main body portion 1322a and a pair of carrying portions 1322b, the main body portion 1322a is connected to the driving body 1321, and the pair of carrying portions 1322b are all connected to the main body portion 1322a and are disposed at intervals along the second direction for respectively carrying two ends of the movable pin 1311 b.

Therefore, the guide body 1311 formed by inserting the movable pin 1311b and the guide portion 1311a is convenient to be assembled and disassembled, the main body portion 1322a and the pair of bearing portions 1322b form a bearing body 1322 with a U-shaped structure, and the guide body 1311 is placed on the pair of bearing portions 1322b by the movable pin 1311b, so that the bearing body 1322 and the guide body 1311 are convenient to be separated.

Referring to fig. 1, in some embodiments, the cross section of the guiding portion 1311a along the second direction is polygonal, and the detecting device 10 further includes a sleeve 14, where the sleeve 14 is sleeved on the guiding portion 1311a and is embedded in the bearing bracket 112.

Therefore, the guide portion 1311a having a polygonal cross section is used, and the guide portion 1311a can be prevented from being displaced in the horizontal direction when moving in the first direction. In addition, the embedding structure of the shaft sleeve 14 and the bearing bracket 112 can avoid the shaft sleeve 14 occupying the space outside the bearing bracket 112 and make the shaft sleeve 14 and the bearing bracket 112 form a detachable connection, so that the guide part 1311a can be replaced quickly by the shaft sleeve 14 and the bearing bracket 112, and the abrasion between the guide part 1311a and the bearing bracket 112 is reduced.

Referring to fig. 1, in some embodiments, the base 111 is provided with a plurality of limiting bodies 111a, the plurality of limiting bodies 111a are disposed along a peripheral side of the base 111, the detecting device 10 further includes a fixing member 15 and a clamping member 16, the fixing member 15 is connected to the base 111, and the clamping member 16 is connected to the fixing member 15 for supporting the workpiece to the limiting bodies 111a.

During operation, the workpiece is placed on the base 111, the side wall of the workpiece is abutted against the plurality of limiting bodies 111a, and the workpiece is abutted against the plurality of limiting bodies 111a through the clamping piece 16, so that the workpiece is positioned, the workpiece is prevented from moving in the horizontal plane in the testing process, and the detection accuracy is improved. In this embodiment, a plurality means two or more.

In this embodiment, the fixing member 15 and the bearing bracket 112 are disposed at intervals along the third direction.

Referring to fig. 4, in some embodiments, the fixing member 15 includes a fixing body 151 and a protruding body 152, the fixing body 151 is connected to the base 111, the protruding body 152 is disposed on one side of the fixing body 151 facing away from the base 111, the clamping member 16 includes a movable body 161, a linkage rod 162, an elastic body 163 and a handle 164, the movable body 161 is movably disposed on one side of the fixing body 151 facing away from the base 111, two ends of the elastic body 163 respectively support against the movable body 161 and the protruding body 152, one end of the linkage rod 162 is disposed through the protruding body 152 and is connected to the movable body 161, the other end of the linkage rod 162 is connected to the handle 164, and the handle 164 rotatably supports against one side of the protruding body 152 facing away from the movable body 161. Illustratively, the elastomer 163 may be a spring.

During operation, the handle 164 is rotated forward, the handle 164 drives the movable body 161 to move in a direction away from the bearing bracket 112 through the linkage rod 162, at this time, the elastic body 163 is compressed, after the workpiece is placed on the base 111, the handle 164 is rotated reversely, the handle 164 drives the movable body 161 to move in a direction close to the bearing bracket 112 through the linkage rod 162, at this time, the elastic force of the elastic body 163 compressed is released, so that the movable body 161 is driven to abut against the workpiece.

Therefore, the movable body 161 is driven to be far away from or close to the bearing bracket 112 by the rotation of the handle 164, so that the workpiece is placed and supported, and the movable body 161 can be rapidly supported by the elastic force of the elastic body 163, so that the movable body 161 supports the workpiece, the operation is convenient, and the production cost is low.

In this embodiment, the two elastic bodies 163 are respectively located at two opposite sides of the linkage rod 162, so as to improve the uniformity of the restoring force to the movable body 161.

Referring to fig. 1, in some embodiments, the base 111 includes a base plate 1111 and a movable plate 1112. The bottom plate 1111 is connected to the supporting bracket 112, the movable plate 1112 is connected to the fixing member 15 and the supporting member 121, and is used for supporting a workpiece, and the movable plate 1112 is movably disposed on the bottom plate 1111 and provided with a plurality of limiting bodies 111a for driving the workpiece to move on the bottom plate 1111, so that the portion to be tested corresponds to the supporting member 122 in the first direction. In this embodiment, the movable plate 1112 moves on the base plate 1111 in a third direction.

In operation, a workpiece may be placed on the movable plate 1112, then the movable plate 1112 is driven to move until the abutting piece 122 corresponds to the guiding portion 1311a in the first direction, then the abutting piece 122 is driven to abut against the portion to be tested, finally the driving body 1321 drives the supporting body 1322 to drive the guiding body 1311 to move downwards at a uniform speed until one end of the guiding body 1311 abuts against the abutting piece 122, the driving body 1321 continues to drive the supporting body 1322 to move downwards, and then the supporting body 1322 is separated from the guiding body 1311, at this time, the gravity of the guiding body 1311 and the pressing body 1312 all fall on the abutting piece 122. Therefore, the movable plate 1112 can drive the workpiece to move, so that the portion to be tested of the workpiece corresponds to the abutting piece 122 in the first direction, and the accuracy of detection is improved.

In this embodiment, the workpiece has a plurality of to-be-measured portions and a plurality of corresponding holders 122, and the plurality of to-be-measured portions and the plurality of holders 122 are in one-to-one correspondence in the first direction during operation.

In some embodiments, the base 111 further includes a plurality of anti-slip members 1113, where the plurality of anti-slip members 1113 are disposed on a side of the base plate 1111 facing away from the movable plate 1112 and along a peripheral side of the base plate 1111, so as to improve the overall stability of the detection device 10. For example, the anti-skid member 1113 may be a your glue.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Finally, it should be noted that the above-mentioned embodiments are merely for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made to the technical solution of the present utility model without departing from the spirit and scope of the technical solution of the present utility model.

Claims

1. A detecting device for detecting a connection strength of a portion to be detected in a workpiece, comprising:

2. The detecting device according to claim 1, wherein,

the support piece is provided with a sliding hole, and the sliding hole penetrates through the support piece along the first direction;

the supporting part comprises a supporting body and a stopping body, the supporting body movably penetrates through the sliding hole, two ends of the supporting body protrude out of the sliding hole and are respectively used for supporting the to-be-tested part and the pressing part, and the stopping body is connected with the supporting body and penetrates out of the sliding hole to limit the supporting body to the sliding hole.

3. The detecting device according to claim 2, wherein,

the side wall of the sliding hole is provided with a stop groove, and the stop groove is used for clamping the stop body to stop the supporting body.

4. The detecting device according to claim 1, wherein the pressing member includes:

5. The detecting device for detecting the rotation of a motor rotor as claimed in claim 4, wherein said driving member includes:

the driving body is connected with the bearing bracket;

6. The detecting device according to claim 5, wherein,

the guide body comprises a guide part and a movable pin, the guide part is arranged on the bearing bracket in a penetrating way, one end of the guide part is used for propping against the propping piece, the other end of the guide part is detachably connected with the pressing body, the movable pin is arranged on the guide part in a penetrating way, and two ends of the movable pin are respectively protruded out of the guide part;

the bearing body comprises a main body part and a pair of bearing parts, wherein the main body part is connected with the driving body, and the pair of bearing parts are connected with the main body part and are arranged at intervals along a second direction perpendicular to the first direction and are used for respectively bearing two ends of the movable pin.

7. The detecting device according to claim 6, wherein a cross section of the guide portion in the second direction is polygonal, the detecting device further comprising:

8. The detecting device according to claim 1, wherein,

the base is provided with a plurality of limiting bodies, and the limiting bodies are arranged along the periphery of the base;

the detection device further comprises a fixing piece and a clamping piece, wherein the fixing piece is connected with the base, and the clamping piece is connected with the fixing piece and used for propping against the workpiece to the limiting body.

9. The detecting device according to claim 8, wherein,

the fixing piece comprises a fixing body and a convex body, the fixing body is connected with the base, and the convex body is arranged on one side, away from the base, of the fixing body;

the clamping piece comprises a movable body, a linkage rod, an elastic body and a handle, wherein the movable body is movably arranged on one side, deviating from the base, of the fixed body, two ends of the elastic body are respectively abutted against the movable body and the convex body, one end of the linkage rod penetrates through the convex body and is connected with the movable body, the other end of the linkage rod is connected with the handle, and the handle is rotatably abutted against one side, deviating from the movable body, of the convex body.

10. The test device of claim 8, wherein the base comprises:

the bottom plate is connected with the bearing bracket;