Bearing mechanism and testing device

Abstract

The bearing mechanism comprises a bearing assembly, a positioning assembly and a connecting rod assembly, the connecting rod assembly comprises a first connecting rod, a second connecting rod and a third connecting rod, the third connecting rod is rotationally connected with a bottom plate, and the two ends of the third connecting rod are movably connected with one end of the first connecting rod and one end of the second connecting rod respectively. The other end of the first connecting rod and the other end of the second connecting rod are connected with the two movable positioning pieces respectively, and the length direction of the first connecting rod is perpendicular to the length direction of the second connecting rod. According to the utility model, external force is applied to the first connecting rod or the second connecting rod to simultaneously drive the two movable positioning pieces to move along the length direction of the first connecting rod and the length direction of the second connecting rod respectively, so that the effect of positioning the piece to be tested is achieved, and the operation process is simple. The utility model also provides a testing device.

Description

Technical Field

[0001] The utility model relates to a bearing mechanism and a testing device, belonging to the technical field of testing equipment. Background Art

[0002] The battery testing device is used to perform needle testing on exposed test points on the battery. Specifically, probes are inserted into the battery test points to measure the battery's impedance. The battery testing device includes a supporting mechanism and a detection mechanism. The supporting mechanism is used to position and position the battery under test. The detection mechanism includes positive and negative probes, which are inserted into the exposed test points of the battery to obtain test results.

[0003] In the related art, the carrying mechanism includes a carrying member and multiple positioning members, and the multiple positioning members are correspondingly arranged on four different edges of the carrying member. When placing or removing the battery to be tested, it is necessary to adjust the positioning members on two adjacent edges separately so that the positioning members are away from the carrying member, which is inconvenient to operate. Utility Model Content

[0004] The purpose of the utility model is to provide a carrying mechanism and a testing device which are convenient for positioning the workpiece to be tested.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A carrying mechanism, comprising:

[0007] A bearing assembly, the bearing assembly comprising a bearing plate and a bottom plate connected to the bearing plate; and

[0008] A positioning assembly, the positioning assembly comprising two adjustable movable positioning members, the two movable positioning members being respectively located at different edges of the carrying plate;

[0009] A connecting rod assembly, the connecting rod assembly comprising a first connecting rod, a second connecting rod and a third connecting rod, the third connecting rod being rotatably connected to the base plate, two ends of the third connecting rod being movably connected to one end of the first connecting rod and one end of the second connecting rod, the other end of the first connecting rod and the other end of the second connecting rod being respectively connected to the two movable positioning members, and the length direction of the first connecting rod being perpendicular to the length direction of the second connecting rod;

[0010] One of the first connecting rod and the second connecting rod is a driving rod, and the other is a driven rod. Under the action of external force, the driving rod can drive one of the movable positioning parts to move from an initial position to a direction away from the supporting plate or return to the initial position. The driving rod drives the driven rod to move through the third connecting rod, and the driven rod can drive the other movable positioning part to move from an initial position to a direction away from the supporting plate or return to the initial position.

[0011] As a further improved technical solution of the present invention, the end face of one end of the first connecting rod is spaced apart from the side face of one side of the second connecting rod, and the third connecting rod is a bent structure.

[0012] As a further improved technical solution of the present invention, the third connecting rod includes two first ends and a main body connecting the two first ends, the main body is rotatably connected to the base plate, the two first ends are movably connected to one end of the first connecting rod and one end of the second connecting rod respectively, and the two first ends are inclined at an acute angle.

[0013] As a further improved technical solution of the present invention, the two first end portions are connected to a first shaft, one end of the first connecting rod and one end of the second connecting rod are provided with an axial hole, the axial hole is a long hole, the axial hole of the first connecting rod extends along the width direction of the first connecting rod, the axial hole of the second connecting rod extends along the width direction of the second connecting rod, and the two first shafts are movably arranged in the two axial holes.

[0014] As a further improved technical solution of the present invention, the carrying mechanism includes a handle, and the handle is connected to the driving rod.

[0015] As a further improved technical solution of the present invention, a limiting member is correspondingly provided on the outer side of each of the movable positioning members, the limiting member is connected to the bearing plate, the limiting member includes a limiting hole, the first connecting rod includes a second end, the second connecting rod includes a third end, and the second end and the third end are respectively movably provided in the two limiting holes;

[0016] An elastic member is connected between the limiting member and the corresponding movable positioning member.

[0017] As a further improved technical solution of the present invention, the two movable positioning members include a first positioning member and a second positioning member, the second end portion is connected to the first positioning member, the third end portion is connected to the second positioning member, the first positioning member and the second positioning member both have through holes, and the second end portion and the third end portion are respectively inserted into the corresponding through holes;

[0018] The elastic member is a spring, and the two springs are correspondingly sleeved on the second end and the third end. The through hole is a stepped hole, and the spring is at least partially located in the through hole. The two ends of the spring are respectively abutted and connected with the step wall of the through hole and the limiting member.

[0019] As a further improved technical solution of the present invention, the positioning assembly includes multiple third positioning members, the third positioning members are connected to the supporting plate, the supporting plate includes two parallel first sides and two parallel second sides, the first sides are perpendicular to the second sides, the first positioning member and at least one third positioning member are respectively located on the two first sides, and the second positioning member and at least one third positioning member are respectively located on the two second sides.

[0020] As a further improved technical solution of the present invention, the movable positioning member includes a positioning portion and a connecting portion, the first connecting rod and the second connecting rod are respectively connected to the two connecting portions, the connecting portion is connected to the positioning portion, the positioning portion is provided with a first tooth portion, the connecting portion is provided with a second tooth portion, and the first tooth portion is engaged with the second tooth portion; or,

[0021] The movable positioning member is an integral member.

[0022] To achieve the above-mentioned purpose, the present invention also adopts the following technical solution: a testing device, including a test box, a slide rail mechanism, the above-mentioned carrying mechanism, a fixing mechanism and a detection mechanism, the test box is used to support the carrying mechanism, the carrying mechanism is used to carry and position the part to be tested, the fixing mechanism is used to fix the wiring of the part to be tested, and along the height direction of the testing device, the detection mechanism is located above the carrying mechanism and is used to detect the part to be tested in the carrying mechanism, and the detection mechanism includes a probe, and the probe is movably arranged on the detection mechanism.

[0023] Compared with the prior art, the beneficial effect of the present invention is that: by setting a connecting rod assembly, the connecting rod assembly includes a first connecting rod, a second connecting rod and a third connecting rod, the third connecting rod connects the first connecting rod and the second connecting rod, the length direction of the first connecting rod is perpendicular to the length direction of the second connecting rod, the first connecting rod and the second connecting rod are respectively connected to the two movable positioning parts, and by applying external force to the first connecting rod or the second connecting rod, the two movable positioning parts can be driven to move along the length direction of the first connecting rod and the length direction of the second connecting rod respectively, thereby achieving the effect of positioning the test piece, and the operation process is simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a three-dimensional schematic diagram of the testing device of the utility model;

[0025] Figure 2 yes Figure 1 An exploded schematic diagram of the test apparatus shown;

[0026] Figure 3 yes Figure 2 A three-dimensional schematic diagram of the middle bearing mechanism and the support plate;

[0027] Figure 4yes Figure 3 Schematic diagram of the decomposition;

[0028] Figure 5 yes Figure 3 Exploded diagram of the middle bearing mechanism;

[0029] Figure 6 yes Figure 5 Detailed decomposition diagram of

[0030] Figure 7 yes Figure 3 A three-dimensional schematic diagram of the middle bearing mechanism from another angle;

[0031] Figure 8 yes Figure 7 Schematic diagram of the decomposition;

[0032] Figure 9 yes Figure 8 A three-dimensional schematic diagram of the third connecting rod;

[0033] Figure 10 yes Figure 8 a three-dimensional cross-sectional view of the middle connecting portion;

[0034] Figure 11 yes Figure 2 3D schematic diagram of the detection mechanism;

[0035] Figure 12 yes Figure 11 A three-dimensional diagram from another angle;

[0036] Figure 13 yes Figure 2 Schematic diagram of the fixing mechanism and support plate. DETAILED DESCRIPTION

[0037] The following exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. If there are several specific embodiments, the features of these embodiments can be combined with each other without conflict. When the description refers to the drawings, unless otherwise specified, the same numbers in different drawings represent the same or similar elements. The contents described in the following exemplary embodiments do not represent all embodiments consistent with the present invention; rather, they are merely examples of devices, products and / or methods that are consistent with some aspects of the present invention and are described in the claims of the present invention.

[0038] The terms used in this utility model are only for the purpose of describing specific embodiments and are not intended to limit the scope of protection of this utility model. The singular forms "a", "the" or "the" used in the specification and claims of this utility model are also intended to include the plural forms, unless the context clearly indicates otherwise.

[0039] It should be understood that the words used in the specification and claims of the present invention, such as "first", "second" and similar words, do not indicate any order, quantity or importance, but are only used to distinguish the names of features. Similarly, "one" or "an" and similar words do not indicate a quantity limitation, but rather indicate the existence of at least one. Unless otherwise specified, the words "front", "back", "upper", "lower" and similar words that appear in the present invention are only for the convenience of description and are not limited to a specific position or a spatial orientation. Words such as "include" or "comprises" are open-ended expressions, meaning that the elements appearing before "include" or "comprises" include the elements appearing after "include" or "comprises" and their equivalents, which does not exclude that the elements appearing before "include" or "comprises" may also include other elements. If "several" appears in the present invention, it means two or more.

[0040] The battery testing device is used to perform a needle test on exposed test points of a device to be tested (such as a battery), specifically by using a probe to penetrate the test point of the battery to measure the battery impedance.

[0041] Please refer to Figures 1 to 13 As shown, the present invention discloses a testing device, including a test box 10, a slide rail mechanism 20, a carrying mechanism 30, a fixing mechanism 40 and a detection mechanism 50. The test box 10 is used to support the carrying mechanism 30, the carrying mechanism 30 is used to carry and position the device to be tested (such as a battery), the fixing mechanism 40 is used to fix the wiring of the device to be tested, and along the height direction of the testing device, the detection mechanism 50 is located above the carrying mechanism 30 and is used to detect the device to be tested in the carrying mechanism 30.

[0042] See also Figure 2 The slide rail mechanism 20 includes a support plate 201, a slide rail 202 and a slide seat 203. The slide seat 203 is fixed to the support plate 201, the slide rail 202 is fixed to the test box 10, the slide seat 203 is slidably connected to the slide rail 202, and the carrying mechanism 30 is fixed to the support plate 201, so that the carrying mechanism 30 can move along the slide rail 202 with the support plate 201.

[0043] Continue to see Figure 2The slide rail mechanism 20 also includes a translation drive member 204 and a connecting plate 205. The translation drive member 204 is arranged in the inner cavity of the test box 10. The connecting plate 205 is connected to the side of the support plate 201 facing the test box 10. The test box 10 is provided with a slit hole 101 for the connecting plate 205 to pass through. The end of the connecting plate 205 away from the support plate 201 passes through the slit hole 101 and is connected to the translation drive member 204. The translation drive member 204 can drive the support plate 201 and the carrying mechanism 30 to translate along the slide rail 202 through the connecting plate 205. The length direction of the slide rail 202 is defined as the Y-axis direction, so that the carrying mechanism 30 can translate along the Y-axis direction.

[0044] See also Figure 2 and Figure 5 The carrying mechanism 30 includes a carrying component 1, a positioning component 2 and a connecting rod component 3. The carrying component 1 is used to carry the piece to be tested, the positioning component 2 is used to position the piece to be tested in the carrying component 1, and the connecting rod component 3 is used to adjust the positioning component 2.

[0045] See also Figure 4 The carrying assembly 1 includes a carrying plate 11 and a bottom plate 12. The carrying plate 11 is used to carry the test piece. The bottom plate 12 is connected to the carrying plate 11, and there is a storage space between the bottom plate 12 and the carrying plate 11. The connecting rod assembly 3 is at least partially located in the storage space.

[0046] See also Figure 6 The supporting plate 11 has a first guide groove 111 and a second guide groove 112. The opening of the first guide groove 111 and the opening of the second guide groove 112 are both facing the bottom plate 12. The bottom plate 12 has a groove 121. The opening of the groove 121 faces the supporting plate 11. The storage space includes at least the first guide groove 111, the second guide groove 112 and the groove 121.

[0047] In some embodiments, see Figure 6 The carrier plate 11 has a mounting groove 113. The first guide groove 111 and the second guide groove 112 are both recessed inward from the bottom wall of the mounting groove 113. The bottom plate 12 is mounted in the mounting groove 113, and the outer side surface of the bottom plate 12 does not extend out of the mounting groove 113. In this way, the thickness of the carrier plate 11 is the same as the overall thickness of the carrier assembly 1, and the bottom plate 12 does not increase the overall thickness of the carrier assembly 1. Of course, in other embodiments, the carrier plate 11 can also be provided with no mounting groove 113.

[0048] See also Figures 6 to 8 At least two sides of the carrier plate 11 are provided with notches 114, wherein the two notches 114 are respectively connected to the first guide groove 111 and the second guide groove 112. Figure 6The supporting plate 11 includes two parallel first sides 11 a and two parallel second sides 11 b , the first sides 11 a are perpendicular to the second sides 11 b , and one of the first sides 11 a and one of the second sides 11 b are both provided with a notch 114 .

[0049] See also Figure 4 The carrying assembly 1 further comprises a box body 13, which is fixed to the carrying plate 11. The support plate 201 is provided with a through hole 2011 for the box body 13 to pass through. The inner cavity of the box body 13 is used to place the controller 60, and the translation drive member 204 is electrically connected to the controller 60.

[0050] See also Figure 7 The positioning assembly 2 includes two adjustable movable positioning members and a plurality of third positioning members 23. The two movable positioning members are respectively disposed in two recesses 114 of the carrier plate 11 and are movable within the recesses 114. Along the height direction of the test device, the movable positioning members extend out of the recesses 114. The third positioning members 23 are connected to the carrier plate 11, and at least two third positioning members 23 are respectively located on the other first side 11a and the other second side 11b. In other words, each of the four sides of the carrier plate 11 is provided with at least one positioning member, thereby achieving positioning of the test piece in four directions.

[0051] In this embodiment, see Figure 6 and Figure 8 The movable positioning member includes a positioning portion 21a and a connecting portion 21b. The connecting portion 21b is connected to the positioning portion 21a by a bolt. The end of the positioning portion 21a facing the connecting portion 21b is provided with a first tooth portion 211a, and the end of the connecting portion 21b facing the positioning portion 21b is provided with a second tooth portion 211b. The first tooth portion 211a and the second tooth portion 211b are engaged with each other, thereby increasing the connection stability between the positioning portion 21a and the connecting portion 21b. Of course, in other embodiments, the movable positioning member can be a single piece.

[0052] See also Figure 6 and Figure 8 The connecting rod assembly 3 includes a first connecting rod 31, a second connecting rod 32 and a third connecting rod 33. The third connecting rod 33 connects the first connecting rod 31 and the second connecting rod 32. The first connecting rod 31 and the second connecting rod 32 are respectively connected to the two connecting parts 21b. Figure 9The third link 33 includes two first end portions 332 and a main body 331 connecting the two first end portions 332. The main body 331 is rotatably connected to the base plate 12. The two first end portions 332 are movably connected to one end of the first link 31 and one end of the second link 32 respectively, and the end of the first link 31 away from the third link 33 is connected to one of the movable positioning members, and the end of the second link 32 away from the third link 33 is connected to the other movable positioning member. The first link 31 is located in the first guide groove 111, the second link 32 is located in the second guide groove 112, and the third link 33 is located in the groove 121. The length direction of the first link 31 is perpendicular to the length direction of the second link 32. One of the first and second connecting rods 31, 32 is a driving rod, and the other is a driven rod. Under the action of an external force, the driving rod can drive one of the movable positioning members to move from its initial position away from the carrier plate 11 or back to its initial position. The driving rod drives the driven rod to move via the third connecting rod 33, and the driven rod can drive the other movable positioning member to move from its initial position away from the carrier plate 11 or back to its initial position. The length of the first connecting rod 31 is parallel to the X-axis, and the length of the second connecting rod 32 is parallel to the Y-axis. By applying an external force to the first connecting rod 31, both positioning members can be simultaneously driven to move in the X-axis and Y-axis directions, respectively, achieving the effect of positioning the test piece. The operation process is simple.

[0053] The first guide groove 111 guides the movement of the first connecting rod 31, and the second guide groove 112 guides the movement of the second connecting rod 32, so that the first connecting rod 31 and the second connecting rod 32 can move along their respective length directions. The groove 121 provides space for the third connecting rod 33 to move.

[0054] In this embodiment, when the movable positioning member is in the initial position, the end surface of one end of the first connecting rod 31 is spaced apart from the side surface of one side of the second connecting rod 32, that is, the first connecting rod 31 and the second connecting rod 32 are arranged in a T shape. Figure 9 The third connecting rod 33 has a bent structure. The main body 331 includes a bent region 3311, which is pivotally connected to the base plate 12 via the second shaft 34. The two first ends 332 are tilted at an acute angle. When the movable positioning member is in the initial position, the axis of the first connecting rod 31 and the axis of the second connecting rod 32 intersect at an intersection, and the bent region 3311 protrudes away from the intersection.

[0055] See also Figure 8The first ends 332 of the third connecting rod 33 are each connected to a first shaft 35. One end of the first connecting rod 31 and one end of the second connecting rod 32 are each provided with a shaft hole 310. The shaft hole 310 is an elongated hole. The shaft hole 310 of the first connecting rod 31 extends along the width direction of the first connecting rod 31, and the shaft hole 310 of the second connecting rod 32 extends along the width direction of the second connecting rod 32. The two first shafts 35 are movably disposed in the two shaft holes 310. It should be noted that the first shaft 35 can rotate and move within the shaft hole 310.

[0056] See also Figures 6 to 8 The first connecting rod 31 includes a second end 311, the second connecting rod 32 includes a third end 321, the two movable positioning members include a first positioning member 21 and a second positioning member 22 respectively, the first positioning member 21 and the second positioning member 22 both include a positioning portion 21a and a connecting portion 21b, the second end 311 is connected to the connecting portion 21b of the first positioning member 21, and the third end 321 is connected to the connecting portion 21b of the second positioning member 22.

[0057] See also Figure 8 The carrying mechanism includes a handle 5, which is connected to the driving rod. In this embodiment, the first connecting rod 31 is the driving rod, and the second connecting rod 32 is the driven rod. The handle 5 is connected to the end of the first connecting rod 31 away from the third connecting rod 33. By pulling the handle 5, the first connecting rod 31 moves, and the first connecting rod 32 drives the second connecting rod 32 to move through the third connecting rod 33, thereby achieving the simultaneous approach or separation of the two movable positioning members from the carrying plate 11. When it is necessary to place the test piece, the two movable positioning members can be manually controlled to move away from the carrying plate 11 from the initial position. After the material is discharged, the two movable positioning members can also be manually controlled to return to the initial position to position the test piece.

[0058] In some other possible embodiments, the second connecting rod 32 is a driving rod, and the first connecting rod 31 is a driven rod. In this case, the handle 5 is connected to an end of the second connecting rod 31 away from the third connecting rod 33 .

[0059] See also Figure 6 and Figure 8The supporting mechanism also includes two limiting members 41 and two elastic members 42. Each limiting member 41 is correspondingly arranged in the recess 114 and connected to the supporting plate 11. Each limiting member 41 includes a limiting hole 411. The two limiting members 41 are correspondingly arranged on the outside of the two movable positioning members. The end of the first connecting rod 31 away from the third connecting rod 33 and the end of the second connecting rod 32 away from the third connecting rod 33 are respectively movably arranged in the two limiting holes 411. An elastic member 42 is connected between each limiting member 41 and the corresponding movable positioning member. The elastic member 42 rebounds to drive the movable positioning member back to the initial position. The movable positioning member automatically returns to its original position through the rebound force of the elastic member 42, saving operating steps. In addition, by providing the elastic member 42, the two movable positioning members form elastic contact with the battery, reducing damage to the battery.

[0060] For details, see Figure 6 and Figure 8 The connecting portion 21b of each movable positioning member has a through hole 211. The second end portion 311 and the third end portion 321 respectively pass through the two through holes 211 and extend into the two corresponding limiting holes 411, wherein the second end portion 311 extends out of the limiting hole 411 and is connected to the handle 5. The connecting portion 21b of each movable positioning member also has a connecting hole 212, which is connected to the through hole 211. The axis of the connecting hole 212 is perpendicular to the axis of the through hole 211. The second end portion 311 and the third end portion 321 are both provided with a through hole 3111. Bolts pass through the connecting hole 212 and the through hole 3111 and are fastened with nuts to achieve fixed connection between the first connecting rod 31 and the second connecting rod 32 and the two movable positioning members, respectively.

[0061] The elastic member 42 is a spring, and two springs are correspondingly sleeved on the second end 311 and the third end 321. Figure 10 The through hole 211 is a stepped hole, and the spring is at least partially located in the through hole 211 . Both ends of the spring are respectively abutted and connected with the step wall 213 of the through hole 211 and the limiting member 41 .

[0062] See also Figure 13The fixing mechanism 40 is fixed to the support plate 201. The fixing mechanism 40 includes a wire harness fixing seat 401, a first plate 402, a second plate 403, a third plate 404 and a fourth plate 405. The first plate 402 is a horizontal plate, the second plate 403 is a vertical plate, the third plate 404 is an L-shaped plate, and the fourth plate 405 is connected to the support plate 201. The harness holder 401 is fixed to the first plate 402. The first plate 402 is provided with a first adjustment hole 4021, the second plate 403 is provided with a second adjustment hole 4031, and the third plate 404 is provided with a third adjustment hole 4041. The first adjustment hole 4021, the second adjustment hole 4031, and the third adjustment hole 4041 are all waist-shaped holes. A bolt passes through the first adjustment hole 4021 of the first plate 402 and is threadedly connected to the screw hole of the second plate 103. A bolt passes through the second adjustment hole 4031 of the second plate 403 and is threadedly connected to the screw hole of the third plate 404. A bolt passes through the third adjustment hole 4041 of the third plate 404 and is threadedly connected to the screw hole of the fourth plate 405. The first adjustment hole 4021 extends along the X-axis, the second adjustment hole 4031 extends along the Z-axis, and the third adjustment hole 4041 extends along the Y-axis, allowing the harness holder 401 to be adjusted along the X-axis, the Y-axis, and the Z-axis. The height direction of the test device is parallel to the Z-axis.

[0063] See also Figure 13 The harness fixing seat 401 has a harness fixing groove 4011, and the wiring of the DUT is received in the harness fixing groove 4011. The fixing mechanism 40 further includes a sensor, which is disposed on the harness fixing seat 401.

[0064] See also Figure 1 and Figure 2 The detection mechanism 50 includes a frame 501, two groups of detection modules, a first mounting block 507 connected to each group of detection modules, a second mounting block 508 connected to each first mounting block 507, and a lifting drive assembly 509. Figure 1 The frame 501 includes a fixed plate 5011 and a plurality of support columns 5012 , one end of the support column 5012 is connected to the test box 10 , the other end of the support column 5012 is connected to the fixed plate 5011 , and the lifting drive assembly 509 is connected to the fixed plate 5011 .

[0065] See also Figure 11 and Figure 12The lift drive assembly 509 includes a lift drive 5091, a guide rail 5092 fixed to one side of the lift drive 5091, a base 5093 slidably connected to the guide rail 5092, a vertical plate 5094, and a transverse plate 5095. The base 5093 is fixedly connected to the vertical plate 5094, and the transverse plate 5095 is fixed to the side of the vertical plate 5094 facing away from the base 5093. A second mounting block 508 is connected to one side of the transverse plate 5095. The driving end of the lift drive 5091 is connected to the vertical plate 5094, and the lift drive 5091 drives the vertical plate 5094 to move along the height direction of the test device. A sensor detects the wiring of the test piece and transmits a start signal to the lift drive 5091 upon sensing the wiring.

[0066] In this embodiment, the lifting drive member 5091 and the translation drive member 204 are both cylinders.

[0067] See also Figure 11 The detection module includes a probe 502, a probe holder 503, a fixing frame 504, a counterweight 505, and a guide 506. The probe 502 is fixed to the probe holder 503, which is fixed to the bottom plate of the fixing frame 504. A first mounting block 507 is L-shaped, with one end of the first mounting block 507 connected to the fixing frame 504 and the other end of the first mounting block 507 connected to the second mounting block 508. One end of the guide 506 is connected to the probe holder 503, and the other end of the guide 506 is connected to the top plate of the fixing frame 504. The counterweight 505 is inserted into the guide 506, allowing the probe 502 to float in the Z-axis direction. The distance between the counterweight 505 and the top plate of the fixing frame 504 is the depth of the probe 502's penetration into the test piece. The pressure of the probe 502 against the test piece is determined by the weight of the counterweight 505. Counterweights 505 are added or removed from probe 502, allowing it to press downward freely under the weight of the counterweights. The pressure of probe 502 against the test object is determined by the weight of the counterweights 505, eliminating the risk of damage to the test object caused by traditional cylinder downward pressure. The two probes 502 in the two detection modules serve as positive and negative probes, respectively.

[0068] See also Figure 11 and Figure 12 The first mounting block 507 is provided with a first hole 5071, and the second mounting block 508 is provided with a second hole 5081. Both the first hole 5071 and the second hole 5081 are waist-shaped holes. A bolt passes through the first hole 5071 and is threadedly connected to the screw hole of the fixing frame 504. Another bolt passes through the second hole 5081 and is threadedly connected to the screw hole of the first mounting block 507. The first hole 5071 extends along the X-axis direction, and the second hole 5081 extends along the Y-axis direction, so that the probe 502 can be adjusted along the X-axis direction, the Y-axis direction, and the Z-axis direction.

[0069] The above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention. The understanding of the present invention should be based on technical personnel in the relevant technical field. Although this specification has described the present invention in detail with reference to the above embodiments, ordinary technical personnel in the field should understand that technical personnel in the relevant technical field can still modify or replace the present invention with equivalents, and all technical solutions and improvements that do not depart from the spirit and scope of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A bearing mechanism, characterized in that: include: A bearing assembly (1), the bearing assembly (1) comprising a bearing plate (11) and a bottom plate (12) connected to the bearing plate (11); as well as A positioning assembly (2), the positioning assembly (2) comprising two adjustable movable positioning members, the two movable positioning members being respectively located at different edges of the carrying plate (11); A connecting rod assembly (3), wherein the connecting rod assembly (3) comprises a first connecting rod (31), a second connecting rod (32) and a third connecting rod (33), wherein the third connecting rod (33) is rotatably connected to the base plate (12), and two ends of the third connecting rod (33) are movably connected to one end of the first connecting rod (31) and one end of the second connecting rod (32), respectively, and the other end of the first connecting rod (31) and the other end of the second connecting rod (32) are respectively connected to the two movable positioning members, and the length direction of the first connecting rod (31) is perpendicular to the length direction of the second connecting rod (32); One of the first connecting rod (31) and the second connecting rod (32) is a driving rod, and the other is a driven rod. Under the action of an external force, the driving rod can drive one of the movable positioning members to move from an initial position to a direction away from the supporting plate (11) or return to the initial position. The driving rod drives the driven rod to move through the third connecting rod (33), and the driven rod can drive the other movable positioning member to move from an initial position to a direction away from the supporting plate (11) or return to the initial position.

2. The supporting mechanism according to claim 1, wherein: The end surface of one end of the first connecting rod (31) is spaced apart from the side surface of one side of the second connecting rod (32), and the third connecting rod (33) is a bent structure.

3. The supporting mechanism according to claim 2, wherein: The third connecting rod (33) includes two first end portions (332) and a main body (331) connecting the two first end portions (332); the main body (331) is rotatably connected to the base plate (12); the two first end portions (332) are movably connected to one end of the first connecting rod (31) and one end of the second connecting rod (32), respectively; and the two first end portions (332) are tilted at an acute angle.

4. The supporting mechanism according to claim 3, wherein: The two first end portions (332) are both connected to a first shaft (35), one end of the first connecting rod (31) and one end of the second connecting rod (32) are both provided with a shaft hole (310), the shaft hole (310) being a long hole, the shaft hole (310) of the first connecting rod (31) extending along the width direction of the first connecting rod (31), the shaft hole (310) of the second connecting rod (32) extending along the width direction of the second connecting rod (32), and the two first shafts (35) are movably arranged in the two shaft holes (310).

5. The supporting mechanism according to claim 1, wherein: The carrying mechanism comprises a handle (5), and the handle (5) is connected to the driving rod.

6. The supporting mechanism according to claim 1, wherein: A limiting member (41) is correspondingly provided on the outer side of each movable positioning member, the limiting member (41) is connected to the supporting plate (11), the limiting member (41) includes a limiting hole (411), the first connecting rod (31) includes a second end portion (311), the second connecting rod (32) includes a third end portion (321), and the second end portion (311) and the third end portion (321) are respectively movably provided in the two limiting holes (411); An elastic member (42) is connected between the limiting member (41) and the corresponding movable positioning member.

7. The supporting mechanism according to claim 6, wherein: The two movable positioning members include a first positioning member (21) and a second positioning member (22), the second end portion (311) is connected to the first positioning member (21), and the third end portion (321) is connected to the second positioning member (22), the first positioning member (21) and the second positioning member (22) both have through holes (211), and the second end portion (311) and the third end portion (321) are respectively provided in the corresponding through holes (211); The elastic member (42) is a spring, and the two springs are correspondingly sleeved on the second end (311) and the third end (321). The through hole (211) is a stepped hole. The spring is at least partially located in the through hole (211), and the two ends of the spring are respectively abutted and connected with the stepped wall (213) of the through hole (211) and the limiting member (41).

8. The supporting mechanism according to claim 7, wherein: The positioning assembly (2) includes a plurality of third positioning members (23), the third positioning members (23) are connected to the supporting plate (11), the supporting plate (11) includes two parallel first sides (11a) and two parallel second sides (11b), the first sides (11a) are perpendicular to the second sides (11b), the first positioning member (21) and at least one of the third positioning members (23) are respectively located on the two first sides (11a), and the second positioning member (22) and at least one of the third positioning members (23) are respectively located on the two second sides (11b).

9. The supporting mechanism according to claim 1, wherein: The movable positioning member comprises a positioning portion (21a) and a connecting portion (21b); the first connecting rod (31) and the second connecting rod (32) are respectively connected to the two connecting portions (21b); the connecting portion (21b) is connected to the positioning portion (21a); the positioning portion (21a) is provided with a first tooth portion (211a); the connecting portion (21b) is provided with a second tooth portion (211b); the first tooth portion (211a) is meshed with the second tooth portion (211b); or, The movable positioning member is an integral member.

10. A testing device, characterized in that: The invention comprises a test box (10), a slide rail mechanism (20), a carrying mechanism (30) according to any one of claims 1 to 9, a fixing mechanism (40) and a detection mechanism (50), wherein the test box (10) is used to support the carrying mechanism (30), the carrying mechanism (30) is used to carry and position a piece to be tested, the fixing mechanism (40) is used to fix the arrangement of the piece to be tested, and along the height direction of the test device, the detection mechanism (50) is located above the carrying mechanism (30) and is used to detect the piece to be tested in the carrying mechanism (30), and the detection mechanism (50) includes a probe (502), and the probe (502) is movably arranged on the detection mechanism (50).

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