Detection mechanism and detection device

Abstract

The utility model provides a detection mechanism and a detection device, which are used for detecting the impedance of a first small piece and a second small piece, the first small piece and the second small piece are both installed on a workpiece and are respectively in conductive connection with the workpiece, and the detection mechanism comprises a bearing seat used for bearing and fixing the workpiece; the first detection assembly comprises a first detection seat, a first lifting part, a first mounting seat and a first detection part, the first detection seat is arranged on the bearing seat, the first lifting part is arranged on the first detection seat, connected with the first mounting seat and used for driving the first mounting seat to be close to or away from the bearing seat, and the first detection part is arranged on the first mounting seat and used for being in conductive contact with the first small part; the second detection assembly comprises a second detection seat, a second lifting part, a second mounting seat and a second detection part, the second detection seat is arranged on the bearing seat, the second lifting part is arranged on the second detection seat, connected with the second mounting seat and used for driving the second mounting seat to be close to or away from the bearing seat, and the second detection part is arranged on the second mounting seat and used for being in conductive contact with the second small part.

Description

Technical Field

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

[0002] Currently, multiple small parts (such as bolts) installed on a workpiece are mostly tested manually one by one using an impedance tester. However, manual work is labor-intensive and has a high error rate, resulting in low impedance detection efficiency and accuracy. Utility Model Content

[0003] In view of the above, it is necessary to provide a detection mechanism and a detection device to improve the detection efficiency and accuracy of impedance.

[0004] The present invention provides a detection mechanism for detecting the impedance of a first small piece and a second small piece, wherein the first small piece and the second small piece are both mounted on a workpiece and are respectively conductively connected to the workpiece. The detection mechanism includes:

[0005] A bearing seat, used for bearing and fixing the workpiece on which the first small piece and the second small piece are mounted;

[0006] A first detection assembly includes a first detection seat, a first lifting member, a first mounting seat, and a first detection member, wherein the first detection seat is disposed on the supporting seat, the first lifting member is disposed on the first detection seat and connected to the first mounting seat, and is used to drive the first mounting seat toward or away from the first small member located on the supporting seat, and the first detection member is disposed on the first mounting seat and is used to electrically contact the first small member;

[0007] The second detection assembly includes a second detection seat, a second lifting member, a second mounting seat and a second detection member, wherein the second detection seat is arranged on the supporting seat, the second lifting member is arranged on the second detection seat and connected to the second mounting seat, and is used to drive the second mounting seat to approach or move away from the second small member located on the supporting seat, and the second detection member is arranged on the second mounting seat, and is used to conductively contact the second small member; wherein,

[0008] The first detection member and the second detection member are used to be electrically connected to an external impedance tester respectively, so as to form a path among the first detection member, the first small member, the workpiece, the second small member and the second detection member.

[0009] In some embodiments, the first detection component includes:

[0010] a first detection pen, provided on the first mounting seat, for electrically connecting to an external impedance tester;

[0011] a first probe, detachably connected to the first mounting seat, for electrically contacting the first small piece;

[0012] A first conductive wire, wherein two ends of the first conductive wire are electrically connected to the first detection pen and the first probe respectively.

[0013] In some embodiments, an end of the first probe away from the first wire is provided with a curved surface, and the curved surface is used to abut against the first small piece.

[0014] In some embodiments, the second detection member includes:

[0015] a second detection pen, provided on the second mounting seat, for connecting to an external impedance tester;

[0016] a second probe, detachably connected to the second mounting base, for conductively contacting the second small piece;

[0017] A second wire, two ends of which are electrically connected to the second detection pen and the second probe respectively.

[0018] In some embodiments, a conductive hole is provided on a surface of the second small piece, and the second probe comprises:

[0019] a probe driving portion, disposed on the second mounting seat;

[0020] A probe block is connected to the probe driving portion and the second conductive wire respectively, and the probe block is used to abut against the inner wall of the conductive hole under the drive of the probe driving portion.

[0021] In some embodiments, the probe block is detachably connected to the probe driving portion, and the probe block is provided with a probe arc surface adapted to the inner wall of the conductive hole.

[0022] In some embodiments, the first mounting seat is slidably connected to the first detection seat to move closer to or away from the supporting seat, and / or the second mounting seat is slidably connected to the second detection seat to move closer to or away from the supporting seat.

[0023] In some embodiments, the support base includes:

[0024] A carrier, used for carrying the workpiece with the first small piece and the second small piece, and the first detection seat and the second detection seat are both provided on the carrier;

[0025] a first positioning member, provided on the carrier and located at the periphery of the carrier;

[0026] a second positioning member, provided on the carrier and located at a periphery of the carrier;

[0027] a first driving member and a first pushing member, wherein the first driving member is provided on the supporting member and connected to the first pushing member, and is used to drive the first pushing member to push the workpiece against the first positioning member;

[0028] A second driving member and a second pushing member, wherein the second driving member is disposed on the supporting member and connected to the second pushing member, and is used to drive the second pushing member to push the workpiece to abut against the second positioning member.

[0029] In some embodiments, the first pushing member includes a first guide, a first pushing member, and a first roller. One end of the first guide is slidably connected to the supporting member, the first pushing member is connected to the other end of the first guide, and the first roller is rotatably connected to the first pushing member for supporting the workpiece. The second pushing member includes a second guide, a second pushing member, and a second roller. One end of the second guide is slidably connected to the supporting member, the second pushing member is connected to the other end of the second guide, and the second roller is rotatably connected to the second pushing member for supporting the workpiece.

[0030] The present invention provides a detection device for detecting the impedance of a first small piece and a second small piece, wherein the first small piece and the second small piece are both mounted on a workpiece and are respectively conductively connected to the workpiece. The detection device includes:

[0031] The detection mechanism of the above embodiment;

[0032] An impedance tester is electrically connected to the first detection component and the second detection component respectively.

[0033] In the above-described detection mechanism and detection device, the first detection assembly and the second detection assembly are fixed relative to the support base. The first lifting member drives the first mounting base to lower the first detection member so as to accurately and electrically contact the first small member. The second lifting member drives the second mounting base to lower the second detection member so as to accurately and electrically contact the second small member, thereby improving detection accuracy. Furthermore, the above-described detection mechanism and detection device can continuously complete the positioning of a workpiece with the first and second small members and the automated detection of the impedance of the first and second small members, with low labor intensity, thereby improving detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 This is a schematic structural diagram of the detection mechanism, the first small part, the second small part and the workpiece according to an embodiment of the utility model.

[0035] Figure 2 for Figure 1 The detection mechanism and the enlarged schematic diagram of the first small part at A are shown.

[0036] Figure 3 for Figure 1 The detection mechanism and the enlarged schematic diagram of the second small part at B are shown.

[0037] Figure 4 for Figure 1 The schematic diagram of the structure of the supporting seat in the detection mechanism shown.

[0038] Figure 5 This is a schematic structural diagram of a detection device according to an embodiment of the present utility model.

[0039] Description of main component symbols

[0040] Testing Agency 100

[0041] Support seat 110

[0042] Carrier 111

[0043] First positioning member 112

[0044] Second positioning member 113

[0045] First driving member 114

[0046] First pusher 115

[0047] First guide body 1151

[0048] First pusher 1152

[0049] First roller 1153

[0050] Second driving member 116

[0051] Second pusher 117

[0052] Second guide body 1171

[0053] Second pusher 1172

[0054] Second roller 1173

[0055] First detection component 120

[0056] The first detection seat 121

[0057] First lifting member 122

[0058] First mounting seat 123

[0059] First detection member 124

[0060] First test pen 1241

[0061] First probe 1242

[0062] Arc surface 1242a

[0063] First wire 1243

[0064] Second detection component 130

[0065] The second detection seat 131

[0066] Second lifting member 132

[0067] Second mounting seat 133

[0068] Second detection member 134

[0069] Second test pen 1341

[0070] Second probe 1342

[0071] Probe driving unit 1342a

[0072] Probe block 1342b

[0073] Probe curved surface 1342c

[0074] Second wire 1343

[0075] Detection device 1000

[0076] First small piece 200

[0077] The second small piece 300

[0078] Conductive hole 300a

[0079] Workpiece 400

[0080] Impedance Tester 500 DETAILED DESCRIPTION

[0081] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be understood as limiting the present invention.

[0082] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the term "connection" should be understood in a broad sense. 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 mutual communication; it can be a direct connection or an indirect connection through an intermediate medium; it can be internal communication between two elements or an interaction between two elements. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0083] The following describes in detail various embodiments of the present invention in conjunction with the accompanying drawings.

[0084] See Figure 1 The present invention provides a detection mechanism 100 for detecting the impedance of a first small piece 200 and a second small piece 300. The first small piece 200 and the second small piece 300 are both mounted on a workpiece 400 and are electrically connected to the workpiece 400. The first small piece 200 is a screw with a flat surface (see Figure 2 ), the second small piece 300 has a conductive hole 300a on its surface (see Figure 3 ) screws, the workpiece 400 is a metal middle frame, and the first small piece 200 and the second small piece 300 are respectively embedded in the surface of the workpiece 400.

[0085] For ease of description, Figure 1 and Figure 4 A three-dimensional coordinate system has been added to the .X-axis, Y-axis, and Z-axis directions are perpendicular to each other.

[0086] See Figure 1The detection mechanism 100 includes a supporting seat 110, a first detection component 120 and a second detection component 130. The supporting seat 110 is used to support and fix the workpiece 400 on which the first small part 200 and the second small part 300 are installed. The first detection component 120 includes a first detection seat 121, a first lifting member 122, a first mounting seat 123 and a first detection member 124. The first detection seat 121 is arranged on the supporting seat 110. The first lifting member 122 is arranged on the first detection seat 121 and connected to the first mounting seat 123, and is used to drive the first mounting seat 123 to move along the Z-axis direction so that the first mounting seat 123 approaches or moves away from the first small part 200 located on the supporting seat 110. The first detection member 124 is arranged on the first mounting seat 123 and is used to conductively contact the first small part 200. The second detection assembly 130 includes a second detection base 131, a second lifting member 132, a second mounting base 133, and a second detection member 134. The second detection base 131 is disposed on the support base 110. The second lifting member 132 is disposed on the second detection base 131 and connected to the second mounting base 133, and is used to drive the second mounting base 133 to move along the Z-axis direction so that the second mounting base 133 approaches or moves away from the second small piece 300 located on the support base 110. The second detection member 134 is disposed on the second mounting base 133 and is used to electrically contact the second small piece 300. The first detection member 124 and the second detection member 134 are respectively used to electrically connect to an external impedance tester to form a path between the first detection member 124, the first small piece 200, the workpiece 400, the second small piece 300, and the second detection member 134.

[0087] In this embodiment, the first lifting member 122 and the second lifting member 132 are both cylinders.

[0088] It should be noted that when first detection member 124 and second detection member 134 are electrically connected to an external impedance tester, a path is formed between the impedance tester, first detection member 124, first small member 200, workpiece 400, second small member 300, and second detection member 134. The impedance of first small member 200 and second small member 300 can be obtained by reading the value displayed by the impedance tester. The operating principle and process of the impedance tester are readily available in published literature and will not be further described here.

[0089] See Figure 2 In some embodiments, the first detection member 124 includes a first detection pen 1241, a first probe 1242, and a first wire 1243. The first detection pen 1241 is mounted on the first mounting base 123 for electrically connecting to an external impedance tester. The first probe 1242 is detachably connected to the first mounting base 123 for electrically contacting the first small member 200. The first wire 1243 has two ends electrically connected to the first detection pen 1241 and the first probe 1242, respectively. For example, the first wire 1243 can be a copper wire.

[0090] Therefore, the first wire 1243 connecting the first detection pen 1241 and the first probe 1242 can not only increase the arrangement range of the first detection pen 1241 and the first probe 1242 to optimize the setting of the first detection part 124, but also facilitate the replacement of the first probe 1242, which is beneficial to reduce the replacement cost of the first detection part 124.

[0091] Please continue to see Figure 2 In some embodiments, the end of the first probe 1242 away from the first wire 1243 is provided with a curved surface 1242a, and the curved surface 1242a is used to abut the first small piece 200. In this embodiment, the end of the first probe 1242 away from the first wire 1243 is a ball head structure.

[0092] Therefore, through the above arrangement, the first probe 1242 and the first small piece 200 form an arc surface contact, which can prevent the first probe 1242 from scratching the first small piece 200, thereby ensuring the quality of the first small piece 200.

[0093] See Figure 3 In some embodiments, the second detection member 134 includes a second detection pen 1341, a second probe 1342, and a second wire 1343. The second detection pen 1341 is mounted on the second mounting base 133 for connecting to an external impedance tester. The second probe 1342 is detachably connected to the second mounting base 133 for electrically contacting the second small member 300. The second wire 1343 has two ends electrically connected to the second detection pen 1341 and the second probe 1342, respectively.

[0094] Therefore, the second wire 1343 connecting the second detection pen 1341 and the second probe 1342 can not only increase the arrangement range of the second detection pen 1341 and the second probe 1342 to optimize the setting of the second detection part 134, but also facilitate the replacement of the second probe 1342, which is beneficial to reduce the replacement cost of the second detection part 134.

[0095] Please continue to see Figure 3 In some embodiments, the second probe 1342 includes a probe driving unit 1342a and a probe block 1342b. The probe driving unit 1342a is disposed on the second mounting base 133, and the probe block 1342b is connected to the probe driving unit 1342a and the second wire 1343, respectively. The probe block 1342b is configured to abut against the inner wall of the conductive via 300a under the drive of the probe driving unit 1342a.

[0096] During the inspection operation, the second lifting member 132 drives the second mounting seat 133 to drive the second inspection member 134 to descend along the Z-axis direction so that the probe block 1342b extends into the conductive hole 300a. Then, the probe driving part 1342a drives the probe block 1342b to abut against the inner wall of the conductive hole 300a.

[0097] Therefore, the above arrangement can realize automatic conductive contact of the second small piece 300 , with low labor intensity and high operation efficiency.

[0098] In this embodiment, the probe driving portion 1342a is a cylinder, and there are two probe blocks 1342b. The two probe blocks 1342b are driven by the probe driving portion 1342a to move closer to or farther away from each other.

[0099] In some embodiments, the probe block 1342 b is detachably connected to the probe driving portion 1342 a , and the probe block 1342 b is provided with a probe arc surface 1342 c adapted to the inner wall of the conductive hole 300 a .

[0100] Therefore, the detachable connection between the probe block 1342b and the probe driving part 1342a facilitates the replacement of the probe block 1342b to increase the applicability of the detection mechanism 100. The probe arc surface 1342c can avoid scratching the second small piece 300, thereby ensuring the quality of the second small piece 300.

[0101] See Figure 1 In some embodiments, the first mounting seat 123 is slidably connected to the first detection seat 121 to move closer to or away from the supporting seat 110 , and / or the second mounting seat 133 is slidably connected to the second detection seat 131 to move closer to or away from the supporting seat 110 .

[0102] Specifically, in one embodiment, only the first mounting seat 123 is slidably connected to the first detection seat 121 along the Z-axis direction, thereby adjusting the movement range of the first detection member 124 in the Z-axis direction. In another embodiment, only the second mounting seat 133 is slidably connected to the second detection seat 131 along the Z-axis direction, thereby adjusting the movement range of the second detection member 134 in the Z-axis direction. In another embodiment, the first mounting seat 123 is slidably connected to the first detection seat 121 along the Z-axis direction and the second mounting seat 133 is slidably connected to the second detection seat 131 along the Z-axis direction, thereby simultaneously realizing the movement range of the first detection member 124 and the second detection member 134 in the Z-axis direction.

[0103] See Figure 1 and Figure 4In some embodiments, the carrier 110 includes a carrier 111, a first positioning member 112, a second positioning member 113, a first driving member 114, a first pushing member 115, a second driving member 116, and a second pushing member 117. The carrier 111 is used to support the workpiece 400 with the first small part 200 and the second small part 300, and the first detection seat 121 and the second detection seat 131 are both provided on the carrier 111. The first positioning member 112 is provided on the carrier 111 and is located at the periphery of the carrier 111. The second positioning member 113 is provided on the carrier 111 and is located at the periphery of the carrier 111. The first driving member 114 is provided on the carrier 111 and connected to the first pushing member 115, and is used to drive the first pushing member 115 to push the workpiece 400 against the first positioning member 112. The second driving member 116 is provided on the carrier 111 and is connected to the second pushing member 117, and is used to drive the second pushing member 117 to push the workpiece 400 against the second positioning member 113. Exemplarily, the first driving member 114 and the second driving member 116 are both cylinders.

[0104] In this embodiment, the supporting member 111 is roughly a rectangular parallelepiped, the first positioning member 112 and the first pushing member 115 are arranged at intervals along the X-axis direction, the second positioning member 113 and the second pushing member 117 are arranged at intervals along the Y-axis direction, the first driving member 114 is located between the first positioning member 112 and the first pushing member 115, and the second driving member 116 is located between the second positioning member 113 and the second pushing member 117.

[0105] See Figure 4 In some embodiments, the first pushing member 115 includes a first guide 1151, a first pushing member 1152, and a first roller 1153. One end of the first guide 1151 is slidably connected to the carrier 111 along the X-axis direction, the first pushing member 1152 is connected to the other end of the first guide 1151, and the first roller 1153 is rotatably connected to the first pushing member 1152 for supporting the workpiece 400. The second pushing member 117 includes a second guide 1171, a second pushing member 1172, and a second roller 1173. One end of the second guide 1171 is slidably connected to the carrier 111 along the Y-axis direction, the second pushing member 1172 is connected to the other end of the second guide 1171, and the second roller 1173 is rotatably connected to the second pushing member 1172 for supporting the workpiece 400.

[0106] Therefore, both the first roller 1153 and the second roller 1173 can avoid scratching the workpiece 400 , thereby ensuring the quality of the workpiece 400 .

[0107] In this embodiment, there are two first guide bodies 1151, two first rollers 1153, two second guide bodies 1171 and two second rollers 1173. The two first guide bodies 1151 are respectively connected to the first pushing body 1152 and are spaced apart along the Y-axis direction. The first driving member 114 is arranged between the two first guide bodies 1151. The two first rollers 1153 are respectively connected to the first pushing body 1152 and are spaced apart along the Y-axis direction. The two first rollers 1153 correspond one-to-one to the two first guide bodies 1151, and each first roller 1153 is located above the corresponding first guide body 1151. The two second guide bodies 1171 are respectively connected to the second pushing body 1172 and are spaced apart along the X-axis direction. The second driving member 116 is arranged between the two second guide bodies 1171. The two second rollers 1173 are respectively connected to the second pushing body 1172 and are spaced apart along the X-axis direction. The two second rollers 1173 correspond one-to-one to the two second guide bodies 1171, and each second roller 1173 is located above the corresponding second guide body 1171.

[0108] See Figure 5 An embodiment of the present invention provides a detection device 1000 for detecting the impedance of a first small piece 200 and a second small piece 300. The first small piece 200 and the second small piece 300 are both mounted on a workpiece 400 and are conductively connected to the workpiece 400, respectively. The detection device 1000 includes an impedance tester 500 and the detection mechanism 100 of the above embodiment. The impedance tester 500 is electrically connected to the first detection piece 124 and the second detection piece 134, respectively.

[0109] In the above-mentioned detection mechanism 100 and detection device 1000, the first detection component 120 and the second detection component 130 are fixedly arranged relative to the supporting base 110, the first lifting member 122 drives the first mounting seat 123 to drive the first detection member 124 to descend so as to accurately conduct electricity and contact the first small piece 200, and the second lifting member 132 drives the second mounting seat 133 to drive the second detection member 134 to descend so as to accurately conduct electricity and contact the second small piece 300, thereby improving the accuracy of detection. In addition, the above-mentioned detection mechanism 100 and detection device 1000 can continuously complete the positioning of the workpiece 400 with the first small piece 200 and the second small piece 300, and the automated detection of the impedance of the first small piece 200 and the second small piece 300, with low labor intensity, thereby improving detection efficiency.

[0110] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations that come within the meaning and range of equivalents of the claims be encompassed within the present invention.

[0111] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention and are not limiting. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the present invention.

Claims

1. A detection mechanism for detecting the impedance of a first small piece and a second small piece, wherein the first small piece and the second small piece are both mounted on a workpiece and are electrically connected to the workpiece, characterized in that: The detection mechanism includes: A bearing seat, used for bearing and fixing the workpiece on which the first small piece and the second small piece are mounted; A first detection assembly includes a first detection seat, a first lifting member, a first mounting seat, and a first detection member, wherein the first detection seat is disposed on the supporting seat, the first lifting member is disposed on the first detection seat and connected to the first mounting seat, and is used to drive the first mounting seat toward or away from the first small member located on the supporting seat, and the first detection member is disposed on the first mounting seat and is used to electrically contact the first small member; The second detection assembly includes a second detection seat, a second lifting member, a second mounting seat and a second detection member, wherein the second detection seat is arranged on the supporting seat, the second lifting member is arranged on the second detection seat and connected to the second mounting seat, and is used to drive the second mounting seat to approach or move away from the second small member located on the supporting seat, and the second detection member is arranged on the second mounting seat, and is used to conductively contact the second small member; wherein, The first detection member and the second detection member are used to be electrically connected to an external impedance tester respectively, so as to form a path among the first detection member, the first small member, the workpiece, the second small member and the second detection member.

2. The detection mechanism according to claim 1, wherein: The first detection component includes: a first detection pen, provided on the first mounting seat, for electrically connecting to an external impedance tester; a first probe, detachably connected to the first mounting seat, for electrically contacting the first small piece; A first conductive wire, wherein two ends of the first conductive wire are electrically connected to the first detection pen and the first probe respectively.

3. The detection mechanism according to claim 2, wherein: An end of the first probe away from the first wire is provided with an arcuate surface, and the arcuate surface is used to abut against the first small piece.

4. The detection mechanism according to claim 1, wherein: The second detection member includes: a second detection pen, provided on the second mounting seat, for connecting to an external impedance tester; a second probe, detachably connected to the second mounting base, for conductively contacting the second small piece; A second wire, two ends of which are electrically connected to the second detection pen and the second probe respectively.

5. The detection mechanism according to claim 4, characterized in that: The surface of the second small piece is provided with a conductive hole, and the second probe comprises: a probe driving portion, disposed on the second mounting seat; A probe block is connected to the probe driving portion and the second conductive wire respectively, and the probe block is used to abut against the inner wall of the conductive hole under the drive of the probe driving portion.

6. The detection mechanism according to claim 5, characterized in that: The probe block is detachably connected to the probe driving portion, and the probe block is provided with a probe arc surface adapted to the inner wall of the conductive hole.

7. The detection mechanism according to claim 1, wherein: The first mounting seat is slidably connected to the first detection seat to move closer to or away from the supporting seat, and / or the second mounting seat is slidably connected to the second detection seat to move closer to or away from the supporting seat.

8. The detection mechanism according to claim 1, wherein: The bearing seat includes: A carrier, used for carrying the workpiece with the first small piece and the second small piece, and the first detection seat and the second detection seat are both provided on the carrier; a first positioning member, provided on the carrier and located at the periphery of the carrier; a second positioning member, provided on the carrier and located at a periphery of the carrier; a first driving member and a first pushing member, wherein the first driving member is provided on the supporting member and connected to the first pushing member, and is used to drive the first pushing member to push the workpiece against the first positioning member; A second driving member and a second pushing member, wherein the second driving member is disposed on the supporting member and connected to the second pushing member, and is used to drive the second pushing member to push the workpiece to abut against the second positioning member.

9. The detection mechanism according to claim 8, characterized in that: The first pushing member includes a first guide body, a first pushing body, and a first roller, one end of the first guide body is slidably connected to the supporting member, the first pushing body is connected to the other end of the first guide body, and the first roller is rotatably connected to the first pushing body for supporting the workpiece; The second pushing member includes a second guide body, a second pushing body and a second roller. One end of the second guide body is slidingly connected to the supporting member, the second pushing body is connected to the other end of the second guide body, and the second roller is rotatably connected to the second pushing body for supporting the workpiece.

10. A detection device for detecting the impedance of a first small piece and a second small piece, wherein the first small piece and the second small piece are both mounted on a workpiece and are electrically connected to the workpiece, characterized in that: The detection device comprises: The detection mechanism according to any one of claims 1 to 9; An impedance tester is electrically connected to the first detection component and the second detection component respectively.

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