Detection device

Abstract

The utility model provides a detection device, which is used for improving the detection convenience on the basis of low cost, and comprises a bearing assembly for bearing a workpiece; the pushing assembly comprises a pushing part and a movable part, the pushing part movably penetrates through the bearing assembly in the first direction, the movable part is movably arranged on one side of the bearing assembly in the first direction and connected with the pushing part, and the movable part is used for driving the pushing part to stretch out of the bearing assembly in the first direction so that the pushing part can push the workpiece; the positioning assembly comprises a limiting piece connected with the bearing assembly and provided with a limiting groove, a reference piece located in the limiting groove and connected with the bearing assembly, and a positioning piece arranged corresponding to the pushing piece and connected with the limiting piece, and the groove wall of the limiting groove, the reference piece and the positioning piece position the workpiece in the second direction, the third direction and the first direction correspondingly; and the detection assembly is arranged on one side of the bearing assembly and detects the workpiece.

Description

Technical Field

[0001] This utility model relates to the field of product testing technology, and in particular to a testing device. Background Technology

[0002] In the field of precision product manufacturing, dimensional inspection is a crucial step in ensuring product quality. Currently, coordinate measuring machines (CMMs) are commonly used for flatness inspection. However, CMMs suffer from drawbacks such as high operating costs, demanding operating conditions, complex operation procedures, and poor convenience. Utility Model Content

[0003] In view of the above situation, it is necessary to provide a detection device to improve the convenience of detection at a low cost.

[0004] This application provides a detection device, including:

[0005] Support components are used to support the workpiece;

[0006] A pushing assembly includes a pushing member and a movable member. The pushing member is movably disposed through the bearing assembly along a first direction. The movable member is movably disposed on one side of the bearing assembly along the first direction and connected to the pushing member. The movable member is used to drive the pushing member to extend out of the bearing assembly along the first direction so that the pushing member pushes the workpiece.

[0007] A positioning assembly includes a limiting member, a reference member, and a positioning element. The limiting member is located on the side of the supporting assembly opposite to the movable member and is connected to the supporting assembly. The limiting member has a limiting groove, the wall of which is used to abut against and position the workpiece along a second direction. The reference member is located in the limiting groove and is connected to the supporting assembly. The reference member is used to abut against and position the workpiece along a third direction. The positioning element is correspondingly arranged with the pushing member along the first direction and is connected to the limiting member. The positioning element is used to abut against and position the pushed workpiece along the first direction. The first direction, the second direction, and the third direction are perpendicular to each other.

[0008] A detection component is disposed on one side of the support component, and the detection component is used to abut against the workpiece to detect the workpiece.

[0009] When the aforementioned detection device detects a workpiece, firstly, the movable component drives the pushing component to retract into the supporting assembly, and then the workpiece to be detected is inserted into the limiting groove and placed on the supporting assembly. Next, the two walls of the limiting groove abut against and position the workpiece along the second direction, and the reference component abuts against and positions the workpiece along the third direction. Then, the movable component drives the pushing component to extend out of the supporting assembly, so that the pushing component pushes the workpiece to the positioning component, causing the positioning component to abut against the pushed workpiece along the first direction and position the workpiece. Finally, the detection component abuts against the workpiece at a preset position to detect the workpiece. In this way, the detection device, through the cooperation of the pushing component and the positioning component, simultaneously positions the workpiece along the first, second, and third directions, which is beneficial for the stable detection of the workpiece by the detection component. The placement, positioning, and detection operations of the detection device are simple, and there is no need to use a complex and precise detection mechanism, reducing operating costs and thus improving detection convenience at a low cost.

[0010] In some embodiments, the limiting member includes:

[0011] Two limiting bodies are spaced apart on the bearing component along the second direction and are both connected to the bearing component. The limiting groove is formed between the two limiting bodies. Each limiting body has multiple limiting parts, which are spaced apart along the third direction on the side of the limiting body facing the limiting groove. The multiple limiting parts are used to abut against different positions of the workpiece.

[0012] In some embodiments, the limiting body further includes:

[0013] The main body is disposed on the bearing assembly and connected to the plurality of limiting parts respectively. The guiding part is disposed at the end of the main body away from the reference member and is inclinedly connected to the main body. The guiding part is used to guide the workpiece to move into the limiting groove.

[0014] In some embodiments, the active component includes:

[0015] The movable body is movably disposed on one side of the bearing assembly along the first direction and connected to the pusher;

[0016] A fixed body is disposed on the side of the movable body opposite to the supporting component and connected to the supporting component;

[0017] A handle body is connected to the movable body, and the handle body is used to drive the movable body to retract the pusher to the bearing assembly under the action of external force;

[0018] An elastomer, the two ends of which elastically abut against the movable body and the fixed body respectively, the elastomer is used to provide elastic force when compressed by the movable body to the fixed body to drive the movable body to drive the pusher to extend out of the bearing assembly, so that the pusher pushes the workpiece.

[0019] In some embodiments, the fixing body is provided with a guide groove, and the guide groove penetrates the fixing body along the first direction;

[0020] The handle body includes a guide portion and a handle portion. The guide portion is movably inserted through the guide groove along the first direction and is movably connected to the movable body. The handle portion is located on the side of the fixed body away from the movable body and is rotatably connected to the end of the guide portion away from the movable body. The handle portion is used to rotate along a preset direction under the action of external force and abut against the side of the fixed body away from the movable body, so as to drive the guide portion to move the movable body closer to the fixed body.

[0021] In some embodiments, the movable body is provided with a through groove and a supporting groove. The through groove extends through the movable body along the first direction, and the supporting groove is provided on the side of the movable body facing the supporting component and communicates with the through groove.

[0022] The guide portion includes a guide rod and a retaining protrusion. The guide rod is movably inserted through the through groove and the guide groove along the first direction and is rotatably connected to the handle portion. The retaining protrusion protrudes from the guide portion on the side facing the retaining groove and extends to the retaining groove. The retaining protrusion is used to abut against the bottom of the retaining groove under the drive of the guide rod, so as to drive the movable body to move synchronously along the first direction.

[0023] In some embodiments, the end of the pusher that is away from the bearing assembly is movably inserted through the elastic body and into the fixing body to limit the elastic body.

[0024] In some embodiments, the detection component includes:

[0025] A sliding member and a detection member are provided. The sliding member is slidably disposed on the bearing assembly, and the detection member is connected to the sliding member. The detection member is used to move to a preset position of the workpiece and abut against the workpiece under the drive of the sliding member in order to detect the workpiece.

[0026] In some embodiments, the carrier component includes:

[0027] The carrier has a pusher that is movably inserted through it, a limiting member and a reference member that are respectively connected to it, and a sliding member that is slidably disposed on it. The carrier is used to support the workpiece.

[0028] A limiting frame is disposed on the side of the bearing member facing the positioning member and connected to the limiting member. The limiting frame and the limiting member enclose a limiting space, which is used to accommodate the sliding member to limit the sliding distance of the sliding member.

[0029] In some embodiments, the detection element includes:

[0030] A connector is provided on the side of the sliding member opposite to the bearing assembly, and the connector is provided with an elongated hole;

[0031] The detection body is connected to the end of the connecting body away from the sliding member; and

[0032] A locking body is inserted through the elongated hole and locked to the sliding member, so that the connecting body can be detachably connected to the sliding member. Attached Figure Description

[0033] Figure 1 This is a three-dimensional structural diagram of the detection device provided in the embodiments of this application.

[0034] Figure 2 for Figure 1 A three-dimensional structural diagram of the pushing component in the detection device shown.

[0035] Figure 3 for Figure 2 The diagram shows a partial structural exploded view of the moving parts in the pusher assembly.

[0036] Explanation of main component symbols: Detection device 100, bearing assembly 10, bearing component 11, limiting frame 12, limiting space 121, pushing assembly 20, pushing component 21, movable body 22, through groove 221, supporting groove 222, fixed body 23, guide groove 231, handle body 24, guide part 241, guide rod 2411, supporting protrusion 2412, handle part 242, elastic body 25, movable component 26, positioning assembly 30, limiting component 31, limiting groove 311, limiting body 312, limiting part 3121, main body part 3122, guide part 3123, reference component 32, positioning component 33, detection assembly 40, sliding component 41, detection component 42, connecting body 421, elongated hole 4211, detection body 422, locking body 423. Detailed Implementation

[0037] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0038] In the description of this application, it should be understood that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, it should be noted that "a plurality of" means two or more, unless otherwise explicitly specified.

[0039] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the term "connection" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a connection that allows communication between the two components; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0040] The following will describe some embodiments of this application in detail with reference to the accompanying drawings.

[0041] Please see Figure 1 This application provides a detection device 100, which includes a supporting component 10, a pushing component 20, a positioning component 30, and a detection component 40. The detection device 100 is used to detect preset parameters of a workpiece (not shown). The workpiece can be a mobile phone mid-plate, a tablet computer, a mobile phone casing, etc., and the preset parameters are flatness, straightness, etc. In this embodiment, the preset parameter is flatness.

[0042] To facilitate understanding and explanation of the embodiments of this application, a three-dimensional coordinate system is established in some of the accompanying drawings, with the first direction being... Figure 1 The Z-axis direction is shown, and the second direction is... Figure 1 The X-axis direction shown is the third direction. Figure 1 The Y-axis direction, X-axis direction, Y-axis direction and Z-axis direction are all perpendicular to each other.

[0043] Please see Figure 1The supporting component 10 is used to support the workpiece to be inspected. The pushing component 20 includes a pushing member 21 and a movable member 26. The pushing member 21 is movably inserted through the supporting component 10 along a first direction. The movable member 26 is movably disposed on one side of the supporting component 10 along the first direction and connected to the pushing member 21. The movable member 26 is used to drive the pushing member 21 to extend out of the supporting component 10 along the first direction so that the pushing member 21 pushes the workpiece. The positioning assembly 30 includes a limiting member 31, a reference member 32, and a positioning member 33. The limiting member 31 is located on the side of the bearing assembly 10 opposite to the movable member 26 and is connected to the bearing assembly 10. The limiting member 31 has a limiting groove 311, the wall of which is used to abut against and position the workpiece along a second direction. The reference member 32 is located in the limiting groove 311 and is connected to the bearing assembly 10. The reference member 32 is used to abut against and position the workpiece along a third direction. The positioning member 33 is correspondingly arranged with the pushing member 21 along a first direction and is connected to the limiting member 31. The positioning member 33 is used to abut against and position the pushed workpiece along the first direction. The detection assembly 40 is located on one side of the bearing assembly 10 and is used to abut against the workpiece to detect it.

[0044] When the aforementioned detection device 100 detects a workpiece, firstly, the movable member 26 drives the pushing member 21 to retract into the bearing assembly 10, and then the workpiece to be detected is inserted into the limiting groove 311 and placed on the bearing assembly 10; then, the two groove walls of the limiting groove 311 abut against and position the workpiece along the second direction, and the reference member 32 abuts against and positions the workpiece along the third direction; next, the movable member 26 drives the pushing member 21 to extend out of the bearing assembly 10, so that the pushing member 21 pushes the workpiece to the positioning member 33, so that the positioning member 33 abuts against the pushed workpiece along the first direction and positions the workpiece; finally, the detection assembly 40 abuts against the preset position of the workpiece to detect the workpiece. In this way, the detection device 10, through the cooperation of the pushing assembly 20 and the positioning assembly 30, can simultaneously position the workpiece along the first direction, the second direction and the third direction, which is beneficial for the detection assembly 40 to stably detect the workpiece. The operation steps of the placement, positioning and detection operations of the detection device 100 are simple, and there is no need to use a complex and precise detection mechanism, which reduces the cost of use, thereby improving the convenience of detection on the basis of low cost.

[0045] Please see Figure 1 In some embodiments, the limiting member 31 includes two limiting bodies 312, which are spaced apart along a second direction and are both connected to the bearing assembly 10. A limiting groove 311 is formed between the two limiting bodies 312. Each limiting body 312 has a plurality of limiting portions 3121, which are spaced apart along a third direction on one side of the limiting body 312 facing the limiting groove 311. The plurality of limiting portions 3121 are used to abut against different positions of the workpiece.

[0046] Thus, by setting the specific structure of the aforementioned limiting member 31, multiple limiting parts 3121 abut against different positions of the workpiece, thereby reducing the contact area between the limiting body 312 and the workpiece, avoiding the limiting body 312 being affected by the tolerance of the workpiece sidewall, and helping to ensure that the limiting body 312 stably and accurately positions the workpiece.

[0047] Please continue reading. Figure 1 In some embodiments, the limiting body 312 further includes a main body 3122 and a guide part 3123. The main body 3122 is disposed on the bearing assembly 10 and connected to a plurality of limiting parts 3121 respectively. The guide part 3123 is disposed at one end of the main body 3122 away from the reference member 32 and is inclinedly connected to the main body 3122. The guide part 3123 is used to guide the workpiece to move into the limiting groove 311.

[0048] Thus, by setting the specific structure of the limiting body 312, the guide part 3123 can guide the placement direction of the workpiece, which is conducive to the smooth movement of the workpiece into the limiting groove 311, reducing the difficulty and time of alignment when placing the workpiece, thereby improving the ease of operation.

[0049] In some embodiments, the main body 3122 and the guide 3123 are connected by an arc-shaped transition.

[0050] Thus, by setting an arc-shaped transition connection between the main body 3122 and the guide 3123, the guide 3123 can smoothly guide the workpiece to the limiting groove 311, avoiding impact and wear on the limiting body 312 during workpiece placement, and improving the service life of the limiting body 312. In addition, the arc-shaped transition connection structure can also disperse stress, improve the overall structural strength of the limiting body 312, and further improve the service life of the limiting body 312.

[0051] In some embodiments, the movable member 26 includes a movable body 22, a fixed body 23, a handle body 24, and an elastic body 25. The movable body 22 is movably disposed on one side of the support assembly 10 along a first direction and connected to the pusher 21. The fixed body 23 is disposed on the side of the movable body 22 away from the support assembly 10 and connected to the support assembly 10. The handle body 24 is connected to the movable body 22 and is used to drive the movable body 22 to retract the pusher 21 to the support assembly 10 under the action of an external force. The two ends of the elastic body 25 elastically abut against the movable body 22 and the fixed body 23, respectively. When compressed by the movable body 22 to the fixed body 23, the elastic body 25 provides elastic force to drive the movable body 22 to extend the pusher 21 out of the support assembly 10, so that the pusher 21 pushes the workpiece.

[0052] Thus, by setting the specific structure of the aforementioned movable part 26, the handle body 24 drives the movable body 22 to compress the elastic body 25 to the fixed body 23 under the action of external force, and drives the pusher 21 to retract to the bearing assembly 10, so that the workpiece can be quickly placed on the bearing assembly 10. The compressed elastic body 25 drives the movable body 22 to push the pusher 21 to push the workpiece, so that the pusher 21 and the positioning member 33 position the workpiece along the first direction, thereby achieving stable positioning of the workpiece and improving positioning stability.

[0053] Please see Figure 1 and Figure 2 In some embodiments, the fixed body 23 is provided with a guide groove 231, which extends through the fixed body 23 along a first direction. The handle body 24 includes a guide portion 241 and a handle portion 242. The guide portion 241 is movably disposed in the guide groove 231 along the first direction and is movably connected to the movable member 26. The handle portion 242 is disposed on the side of the fixed body 23 away from the movable member 26 and is rotatably connected to the end of the guide portion 241 away from the movable member 26. The handle portion 242 is used to rotate in a preset direction under the action of an external force and abut against the side of the fixed body 23 away from the movable member 26, so as to drive the guide portion 241 to move the movable member 26 closer to the fixed body 23. Exemplarily, the handle portion 242 can be any handle rod, handle portion, or similar handle block that can drive the guide portion 241 to move under the action of an external force.

[0054] Thus, by setting the guide portion 241 to move through the guide groove 231, the guide groove 231 guides the movement direction of the guide portion 241, ensuring that the movable part 26 drives the pusher 21 to move stably along the first direction, thereby improving positioning stability. Furthermore, by setting the specific structure of the handle body 24, the operator can drive the handle portion 242 to rotate in a preset direction and abut against the side of the fixed body 23 away from the movable part 26, thereby driving the guide portion 241 to move the movable part 26 closer to the fixed body 23. This operation is simple and labor-saving, enabling rapid retraction of the pusher 21 and improving operational convenience.

[0055] Please see Figure 3 In some embodiments, the movable member 26 has a through groove 221 and a retaining groove 222. The through groove 221 passes through the movable member 26 in a first direction, and the retaining groove 222 is located on the side of the movable member 26 facing the support assembly 10 and communicates with the through groove 221. The guide portion 241 includes a guide rod 2411 and a retaining protrusion 2412. The guide rod 2411 is movably inserted through the through groove 221 and the guide groove 231 in the first direction and is rotatably connected to the handle portion 242. The retaining protrusion 2412 protrudes from the side of the guide portion 241 facing the retaining groove 222 and extends to the retaining groove 222. The retaining protrusion 2412 is used to abut against the bottom of the retaining groove 222 under the drive of the guide rod 2411, so as to drive the movable member 26 to move synchronously in the first direction.

[0056] Thus, by setting the specific structure of the guide part 241 and the movable part 26, the abutting protrusion 2412 abuts against the bottom of the abutting groove 222 under the drive of the guide rod 2411, so that the abutting protrusion 2412 stably drives the movable part 26 to move synchronously towards the fixed body 23 in the first direction, realizing stable linkage operation of the movable part 26 and the guide part 241, and improving the stability of operation.

[0057] Please see Figure 2 In some embodiments, the end of the pusher 21 away from the bearing assembly 10 is movably inserted through the elastic body 25 and inserted into the fixing body 23 to limit the elastic body 25.

[0058] Thus, by setting the pusher 21 to be movably inserted through the elastic body 25 and inserted into the fixed body 23, the pusher 21 limits the elastic body 25, so that the elastic body 25 is always compressed or elastically opened and reset along the movement direction of the pusher 21, ensuring that the elastic body 25 always provides elastic force to the pusher 21 along the movement direction of the pusher 21, so as to ensure the normal extension and retraction of the pusher 21, thereby improving the pushing stability of the pusher 21.

[0059] Please see Figure 1 In some embodiments, the detection component 40 includes a slider 41 and a detection component 42. The slider 41 is slidably disposed on the support component 10, and the detection component 42 is connected to the slider 41. The detection component 42 is used to move to a preset position on the workpiece and abut against the workpiece under the action of the slider 41 to detect the workpiece. Exemplarily, the slider 41 can be any sliding part, sliding body, or similar sliding block that can slide relative to the support component 10 and move the detection component 42 to the preset position on the workpiece.

[0060] Thus, by setting the specific structure of the detection component 40, the sliding member 41 can drive the detection member 42 to move flexibly to the preset position of the workpiece, thereby adjusting the position according to different detection requirements of the workpiece, which improves the detection flexibility and adaptability of the detection component 40.

[0061] Please continue reading. Figure 1 In some embodiments, the support assembly 10 includes a support member 11 and a limiting frame 12. A pushing member 21 is movably disposed through the support member 11, and a limiting member 31 and a reference member 32 are respectively connected to the support member 11. A sliding member 41 is slidably disposed on the support member 11. The support member 11 is used to support the workpiece. The limiting frame 12 is disposed on the side of the support member 11 facing the positioning member 33 and is connected to the limiting member 31. The limiting frame 12 and the limiting member 31 enclose a limiting space 121, which is used to accommodate the sliding member 41 to limit the sliding distance of the sliding member 41.

[0062] Thus, by setting the specific structure of the above-mentioned bearing component 10, the limiting frame 12 and the limiting member 31 are arranged to form a limiting space 121, so that the limiting space 121 limits the sliding distance of the sliding member 41, preventing the sliding member 41 from sliding excessively and affecting the detection accuracy or detaching from the bearing component 11, thereby improving the detection accuracy of the detection component 40.

[0063] Please refer to it again. Figure 1 In some embodiments, the detection element 42 includes a connector 421, a detection element 422, and a locking element 423. The connector 421 is located on the side of the slider 41 opposite to the support assembly 10, and has an elongated hole 4211. The detection element 422 is connected to the end of the connector 421 away from the slider 41, and the locking element 423 passes through the elongated hole 4211 and is locked to the slider 41, so that the connector 421 is detachably connected to the slider 41. Exemplarily, the detection element 422 can be a dial indicator, and the locking element 423 can be a screw.

[0064] Thus, by setting the specific structure of the detection body 422, the detection component 42 forms a split structure, which makes it easy to adjust the installation position of the detection body 422 according to the detection requirements, which is beneficial for the detection body 422 to detect different areas of the workpiece and improves the detection flexibility of the detection component 42.

[0065] The working process of the above-mentioned detection device 100 is roughly as follows:

[0066] First, the handle 242 rotates in a preset direction under the action of external force and abuts against the side of the fixed body 23 away from the movable body 22, so as to drive the guide 241 to move the movable body 22 closer to the fixed body 23, so that the movable body 22 compresses the elastic body 25 to the fixed body 23, and drives the pusher 21 to the carrier 11. Then, the workpiece to be tested is placed in the limiting groove 311 under the guidance of the guide 3123.

[0067] Then, the two walls of the limiting groove 311 abut against and position the workpiece along the second direction, and the reference part 32 abuts against and positions the workpiece along the third direction.

[0068] Next, the compressed elastic body 25 elastically resets and provides elastic force to drive the movable body 22 to push the pusher 21 out of the carrier 11, so that the pusher 21 pushes the workpiece to the positioning member 33, so that the positioning member 33 abuts against the pushed workpiece in the first direction and positions the workpiece.

[0069] Finally, the slider 41 slides within the limiting space 121 to move the detection element 42 to the preset position of the workpiece, so that the detection element 42 abuts against the preset position of the workpiece to detect the preset parameters of the workpiece. The operation steps of the placement, positioning and detection operations of the detection device 100 are simple and do not require the use of complex and precise detection mechanisms, which reduces the cost of use and thus improves the convenience of detection on the basis of low cost.

[0070] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit it. Although this application has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this application without departing from the spirit and scope of the technical solutions of this application.

Claims

1. A detection device, characterized in that, The utility model relates to a workpiece positioning device, comprising: a bearing assembly for bearing a workpiece; a pushing assembly comprising a pushing piece and a movable piece, the pushing piece being movably arranged in the bearing assembly along a first direction, and the movable piece being movably arranged on one side of the bearing assembly along the first direction and connected with the pushing piece, the movable piece being used to drive the pushing piece to extend out of the bearing assembly along the first direction so that the pushing piece pushes the workpiece; a positioning assembly comprising a limiting piece, a reference piece and a positioning piece, the limiting piece being arranged on the side of the bearing assembly away from the movable piece and connected with the bearing assembly, the limiting piece being provided with a limiting groove, the groove wall of the limiting groove being used to abut and position the workpiece along a second direction, the reference piece being located in the limiting groove and connected with the bearing assembly, the reference piece being used to abut and position the workpiece along a third direction, the positioning piece being arranged correspondingly with the pushing piece along the first direction and connected with the limiting piece, the positioning piece being used to abut the pushed workpiece along the first direction and position the workpiece, the first direction, the second direction and the third direction being perpendicular to each other; and a detection assembly arranged on one side of the bearing assembly, the detection assembly being used to abut the workpiece to detect the workpiece.

2. The detection device of claim 1, wherein, The limiting piece comprises: two limiting bodies arranged at intervals along the second direction on the bearing assembly and connected with the bearing assembly, the limiting groove being formed between the two limiting bodies, the limiting body having a plurality of limiting portions arranged at intervals on the side of the limiting body facing the limiting groove along the third direction, the plurality of limiting portions being used to abut different positions of the workpiece.

3. The detection device of claim 2, wherein, The limiting body further comprises: a main body portion and a guide portion, the main body portion being arranged on the bearing assembly and connected with the plurality of limiting portions respectively, the guide portion being arranged at the end of the main body portion away from the reference piece and being obliquely connected with the main body portion, the guide portion being used to guide the workpiece to move into the limiting groove.

4. The detection device of claim 1, wherein, The movable piece comprises: a movable body movably arranged on one side of the bearing assembly along the first direction and connected with the pushing piece; a fixed body arranged on the side of the movable body away from the bearing assembly and connected with the bearing assembly; a handle body connected with the movable body, the handle body being used to drive the movable body to retract the pushing piece into the bearing assembly under the action of external force; an elastic body, both ends of the elastic body being elastically abutted on the movable body and the fixed body respectively, the elastic body being used to provide elastic force to drive the movable body to extend the pushing piece out of the bearing assembly to push the workpiece when the movable body is compressed to the fixed body.

5. The detection device of claim 4, wherein, The fixed body is provided with a guide groove penetrating through the fixed body along the first direction; The handle body comprises a guide part and a handle part, the guide part is movably arranged in the guide slot along the first direction and movably connected with the movable body, the handle part is arranged on the side of the fixed body away from the movable body and rotatably connected with the end of the guide part away from the movable body, the handle part is used for rotating along the preset direction under the action of external force and abutting against the side of the fixed body away from the movable body, so as to drive the guide part to drive the movable body to move close to the fixed body.

6. The detection device of claim 5, wherein, The movable body is provided with a through slot and an abutting groove, the through slot penetrates the movable body along the first direction, and the abutting groove is arranged on the side of the movable body facing the bearing assembly and communicates with the through slot; The guide part comprises a guide rod and an abutting protrusion, the guide rod is movably arranged in the through slot and the guide slot along the first direction and rotatably connected with the handle part, the abutting protrusion is protruded on the side of the guide part facing the abutting groove and extends into the abutting groove, and the abutting protrusion is used for abutting against the bottom of the abutting groove under the driving of the guide rod, so as to drive the movable body to move along the first direction synchronously.

7. The detection device of claim 4, wherein, The end of the pushing piece away from the bearing assembly is movably arranged in the elastic body and inserted into the fixed body, so as to limit the elastic body.

8. The detection device of claim 1, wherein, The detection assembly comprises: A sliding piece and a detection piece, the sliding piece is slidably arranged in the bearing assembly, the detection piece is connected with the sliding piece, and the detection piece is used for moving to the preset position of the workpiece under the driving of the sliding piece and abutting against the workpiece, so as to detect the workpiece.

9. The detection device of claim 8, wherein, The bearing assembly comprises: A bearing piece, the pushing piece is movably arranged in the bearing piece, the limiting piece and the reference piece are respectively connected with the bearing piece, the sliding piece is slidably arranged in the bearing piece, and the bearing piece is used for bearing the workpiece; A limiting frame is arranged on the side of the bearing piece facing the positioning piece and connected with the limiting piece, the limiting frame and the limiting piece surround to form a limiting space, the limiting space is used for accommodating the sliding piece, so as to limit the sliding distance of the sliding piece.

10. The detection device of claim 8, wherein, The detection piece comprises: A connecting body is arranged on the side of the sliding piece away from the bearing assembly, the connecting body is provided with an oblong hole; A detection body is connected with the end of the connecting body away from the sliding piece; and A locking body is arranged in the oblong hole and is locked with the sliding piece, so that the connecting body can be detachably connected with the sliding piece.

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