Gripping device and testing machine

Abstract

The application discloses a clamping device and a testing machine. The clamping device comprises a clamping assembly, the clamping assembly comprising a first clamping piece and a second clamping piece, the first clamping piece having a first front end, and the second clamping piece having a second front end; a guide mechanism, the guide mechanism comprising a first guide assembly and a second guide assembly, the first guide assembly and the second guide assembly being linked with the first clamping piece, the first guide assembly guiding the first clamping piece to move in a first direction, and the second guide assembly guiding the first clamping piece to move in a second direction; and a driving mechanism, the driving mechanism comprising a driving piece and a transmission piece, the transmission piece having a first stroke and a second stroke, the transmission piece driving the first clamping piece to move in the first direction when moving in the first stroke, and the transmission piece driving the first clamping piece to move in the second direction when moving in the second stroke. The application does not need to adjust the position of a workpiece during clamping, the operation steps are simple, manual participation is not needed, and the automatic plate feeding action is facilitated.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of clamps, in particular to a clamping device and a testing machine. BACKGROUND

[0002] The characteristic impedance of a PCB board circuit is related to the physical size of the circuit on the board, the manufacturing material of the PCB, the processing technology, etc. The characteristic impedance of each batch of circuit boards may be different. In order to control the circuit impedance, the PCB manufacturer needs to strictly test the characteristic impedance of each PCB produced to check whether it meets the design and production requirements. For the testing of circuit boards, many testing devices for testing circuit boards have been developed.

[0003] However, in the existing impedance testing equipment, the circuit board is fixed in the clamp of the testing equipment during testing, and the two clamping plates of the clamp are parallel to each other, and the ports are flush with each other. When manually clamping the PCB card, the card needs to be inserted into the clamp from the side of the clamp, and then the clamp is closed. The operation is complicated and is not conducive to automatic clamping of the PCB card. SUMMARY

[0004] The present application aims to at least solve one of the technical problems existing in the prior art. To this end, one object of the present application is to provide a clamping device which does not need to adjust the position of the workpiece, has simple operation steps, does not need manual intervention, and is conducive to automatic board loading.

[0005] The present application also aims to provide a testing machine applying the above-mentioned clamping device.

[0006] The clamping device according to the embodiments of the present application comprises: a clamping assembly, the clamping assembly comprising a first clamping member and a second clamping member arranged opposite in a second direction, the first clamping member having a first front end arranged close to a workpiece, and the second clamping member having a second front end arranged close to the workpiece; a guide mechanism, the guide mechanism comprising a first guide assembly and a second guide assembly, the first guide assembly and the second guide assembly being linked with the first clamping member, and the first guide assembly guiding the first clamping member to move in a first direction, and the second guide assembly guiding the first clamping member to move in a second direction; a driving mechanism, the driving mechanism comprising a driving member and a transmission member linked with the output end of the driving member, the transmission member having a first stroke and a second stroke, the transmission member driving the first clamping member to move in the first direction when moving in the first stroke, so that the first front end of the first clamping member and the second front end of the second clamping member are flush or staggered, and the transmission member driving the first clamping member to move in the second direction when moving in the second stroke, so that the first clamping member and the second clamping member are close to each other for clamping the workpiece or away from each other for releasing the workpiece.

[0007] According to the clamping device, the clamping assembly is provided with the first clamping member and the second clamping member arranged opposite to each other along the second direction, the guide mechanism is provided with the first guide assembly and the second guide assembly, and the driving mechanism is provided with the driving member and the transmission member connected with the output end of the driving member. The transmission member has the first stroke and the second stroke. When the transmission member moves in the first stroke, the first clamping member is driven to move along the first direction. When the transmission member moves in the second stroke, the first clamping member is driven to move along the second direction. The movement of the first clamping member along the two directions can complete the clamping of the workpiece together with the second clamping member. The clamping device does not need to adjust the position of the workpiece during clamping, the operation steps are simple, manual participation is not needed, and the automatic plate loading action is facilitated.

[0008] In some embodiments, the second guide assembly includes the first guide plate and the second guide plate arranged opposite to each other along the second direction. The first guide plate is arranged between the transmission member and the second guide plate. The first guide plate can guide the movement of the transmission member along the driving direction of the driving member. The second guide plate can guide the movement of the transmission member along the second direction, so that the transmission member drives the first clamping member to move close to the second clamping member.

[0009] In some embodiments, the transmission member is provided with the first guide groove, and the first clamping member is provided with the first guide member. The first guide member is slidably arranged in the first guide groove. The first guide groove includes the first part and the second part connected with each other. The second part extends along the driving direction. An included angle is formed between the second part and the first part. The first guide member moves along the first part to form the first stroke. The first guide member moves along the second part to form the second stroke. When the first guide member moves in the first part, the first clamping member moves along the first direction, so that the first front end of the first clamping member and the second front end of the second clamping member are staggered or parallel. When the first guide member moves in the second part, the first clamping member moves along the second direction, so that the first front end of the first clamping member and the second front end of the second clamping member move close to or away from each other.

[0010] In some embodiments, the transmission member includes the plate body part and the protruding part. The plate body part is connected with the output end of the driving member. The plate body part is provided with the first guide groove. The protruding part is arranged on the plate body part. The second guide plate is provided with the stop part. When the transmission member moves in the second stroke, the protruding part contacts the stop part.

[0011] In some embodiments, the protruding portion is provided with a driving slope, which is in contact with the stop portion to drive the second guide plate to move the first clamping member in the second direction.

[0012] In some embodiments, the stop portion comprises a mounting shaft and a first rolling body provided on the mounting shaft, which is in contact with the protruding portion.

[0013] In some embodiments, the plate body portion is provided with a plurality of protruding portions arranged in sequence in the driving direction, the second guide plate is provided with a plurality of stop portions arranged in one-to-one correspondence with the plurality of protruding portions, the plate body portion is provided with a plurality of first guide grooves arranged in sequence in the driving direction, and the first clamping member is provided with a plurality of first guide members arranged in one-to-one correspondence with the plurality of first guide grooves.

[0014] In some embodiments, the first guide plate extends in the driving direction, the first guide plate is provided with a first avoiding groove extending in the driving direction, the protruding portion is arranged in the first avoiding groove and is stopped by the first avoiding groove on both sides in the driving direction, and the protruding portion is in contact with the stop portion when the transmission member moves in the second stroke.

[0015] In some embodiments, the second guide plate is provided with a second avoiding groove, the stop portion is arranged in the second avoiding groove, and the second avoiding groove can accommodate the protruding portion, the second avoiding groove is provided with a plurality of second avoiding grooves arranged in one-to-one correspondence with the plurality of stop portions.

[0016] In some embodiments, the first clamping member is provided with a second guide groove extending in the first direction, the first guide assembly comprises a support plate and a second guide member, the second guide member is arranged on the support plate, and the second guide member is arranged in the second guide groove.

[0017] In some embodiments, one end or both ends of the transmission member in the driving direction is provided with the driving member, a connecting assembly is arranged between the transmission member and the output end of the driving member, and the connecting assembly comprises a connecting seat arranged on the transmission member, a sliding groove arranged on the connecting seat and extending in the second direction, and a second rolling member arranged on the output end of the driving member and arranged in the sliding groove.

[0018] In some embodiments, the clamping device further comprises a side mounting plate connected to the second guide assembly and the second clamping member, and the driving member is connected to the side mounting plate.

[0019] In some embodiments, a guide column is arranged on the second clamping member, and the first clamping member, the first guide assembly and the second guide assembly are all mounted on the guide column through guide holes, and the first clamping member and the first guide assembly are in sliding fit with the guide column along the second direction.

[0020] In some embodiments, a reset member is arranged on the guide column, and the reset member is arranged between the first clamping member and the second clamping member, and the reset member is used to keep the first clamping member moving away from the second clamping member.

[0021] The testing machine according to the embodiments of the present application comprises: a machine body; two clamping devices, the two clamping devices are arranged oppositely in the machine body, and the clamping device is the clamping device described above.

[0022] The testing machine according to the embodiments of the present application can avoid the adjustment of the distance between the two sets of clamps during clamping, reduce the labor intensity of workers, and realize the automatic upper-to-down plate feeding action, and has little influence on the side edge mechanism during the automatic operation process.

[0023] Additional aspects and advantages of the present application will be in part apparent and in part pointed out hereinafter. BRIEF DESCRIPTION OF DRAWINGS

[0024] The above and / or additional aspects and advantages of the present application will become apparent and be readily appreciated from the following description, including the appended drawings.

[0025] Figure 1 is an exploded view of the clamping device in the embodiments of the present application;

[0026] Figure 2 is a schematic view of the first clamping member and the second clamping member in the initial position in the embodiments of the present application;

[0027] Figure 3 is a schematic view of the first clamping member and the second clamping member during the first stroke in the embodiments of the present application;

[0028] Figure 4 is a schematic view of the first clamping member and the second clamping member during the second stroke in the embodiments of the present application;

[0029] Figure 5 is an exploded view of the second guide assembly in the embodiments of the present application;

[0030] Figure 6 is a sectional view of a clamping device in an embodiment of the present application Figure 1 ;

[0031] Figure 7 is a sectional view of a clamping device in an embodiment of the present application Figure 2 ;

[0032] Figure 8 is a structural schematic diagram of a first guide groove in an embodiment of the present application

[0033] Figure 9 is a partial structural schematic diagram of a clamping device in an embodiment of the present application Figure 1 ;

[0034] Figure 10 is a partial structural schematic diagram of a clamping device in an embodiment of the present application Figure 2 ;

[0035] Figure 11 is a three-dimensional structural schematic diagram of a clamping device in an embodiment of the present application

[0036] Figure 12 is a three-dimensional structural schematic diagram of a testing machine in an embodiment of the present application

[0037] Figure 13 is a schematic diagram of two clamping devices and a PCB card in an embodiment of the present application.

[0038] Reference signs:

[0039] 100, clamping device

[0040] 10, clamping assembly

[0041] 110, first clamping piece; 110a, first front end; 1101, first guide piece; 1102, second guide groove

[0042] 120, second clamping piece; 120a, second front end; 120b, shoulder; 1201, guide column; 100a, guide hole; 1203, reset piece

[0043] 20, guide mechanism

[0044] 210, second guide assembly

[0045] 2101, first guide plate; 21011, first avoiding groove; 21012, third avoiding groove; 2102, second guide plate; 21021, stopping part; 201, mounting shaft; 202, first rolling body; 21022, second avoiding groove

[0046] 220, first guide assembly; 2201, support plate; 2202, second guide piece

[0047] 30, driving mechanism;

[0048] 310, driving member;

[0049] 320, transmission member;

[0050] 3201, plate body part; 32011, first guide groove; 301, first part; 302, second part;

[0051] 3202, protruding part; 32021, driving inclined surface;

[0052] 40, connecting assembly; 410, connecting seat; 4101, sliding groove; 420, second rolling member;

[0053] 50, side mounting plate;

[0054] 1000, testing machine; 200, machine body; 300, PCB board card. DETAILED DESCRIPTION

[0055] Embodiments of the present application are described in detail below with reference to the attached drawings, wherein the same or similar components have the same or similar designations throughout the several figures of the drawings and any description of the same or similar components can be used interchangeably. The embodiments described below are examples of the present application, and are not intended to limit the present application.

[0056] In the description of the present application, it is to be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0057] In addition, the features defined as "first" and "second" can explicitly or implicitly include one or more of the features, for distinguishing the described features, without order, without light and heavy.

[0058] In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0059] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0060] The following is for reference. Figures 1-11 The clamping device 100 according to an embodiment of the present invention is described.

[0061] like Figure 1 , Figure 11 As shown, the clamping device 100 according to an embodiment of the present invention includes: a clamping assembly 10, a guiding mechanism 20, and a driving mechanism 30.

[0062] The clamping assembly 10 includes a first clamping member 110 and a second clamping member 120 disposed opposite to each other along a second direction. The first clamping member 110 has a first front end 110a disposed near the workpiece, and the second clamping member 120 has a second front end 120a disposed near the workpiece. When the clamping assembly 10 is used for clamping, firstly, the first front end 110a of the first clamping member 110 and the second front end 120a of the second clamping member 120 are aligned. Then, the first clamping member 110 and the second clamping member 120 move along the second direction and move closer to each other to clamp the workpiece.

[0063] The guiding mechanism 20 includes a first guiding component 220 and a second guiding component 210. The first and second guiding components 220 are linked to the first clamping member 110. The first guiding component 220 guides the first clamping member 110 to move along a first direction, and the second guiding component 210 guides the first clamping member 110 to move along a second direction. During the alignment of the first front end 110a and the second front end 120a, the first guiding component 220 provides guidance for the first clamping member 110 to move along the first direction, and the second guiding component 210 provides guidance for the first clamping member 110 to move along the second direction, thereby improving the reliability of the movement of the first clamping member 110.

[0064] The driving mechanism 30 comprises a driving member 310 and a transmission member 320 connected with the output end of the driving member 310, the transmission member 320 has a first stroke and a second stroke, the transmission member 320 drives the first clamping member 110 to move in the first direction when moving in the first stroke, so that the first front end 110a of the first clamping member 110 and the second front end 120a of the second clamping member 120 are flush or staggered, the transmission member 320 drives the first clamping member 110 to move in the second direction when moving in the second stroke, so that the first clamping member 110 and the second clamping member 120 are close to each other for clamping the workpiece or away from each other for releasing the workpiece. That is, the driving member 310 can provide corresponding driving force, and the movement of the output end of the driving member 310 is converted into driving the first clamping member 110 to move in the first direction and driving the first clamping member 110 to move in the second direction through the transmission member 320.

[0065] It can be understood that the first direction is the front-back direction, and the second direction is the up-down direction, and the workpiece described in the foregoing can be a PCB board. As shown in Figure 2 , the first front end 110a of the first clamping member 110 and the second front end 120a of the second clamping member 120 are staggered with each other at the initial position, the second clamping member 120 is provided with a shoulder 120b, and the workpiece is placed on the second clamping member 120 and abuts against the shoulder 120b.

[0066] As shown in Figure 3 , in the process of clamping the workpiece, the workpiece is installed downward on the second clamping member 120, the transmission member 320 drives the first clamping member 110 to move forward when moving in the first stroke, so that the first front end 110a of the first clamping member 110 and the second front end 120a of the second clamping member 120 are aligned. As shown in Figure 4 , the transmission member 320 drives the first clamping member 110 to move downward when moving in the second stroke, and the first clamping member 110 and the second clamping member 120 are close to each other, and finally the workpiece is clamped.

[0067] According to the clamping device 100 of the embodiment of the present application, the clamping assembly 10 is arranged to comprise the first clamping member 110 and the second clamping member 120 arranged opposite in the second direction, the guide mechanism 20 is arranged to comprise the first guide assembly 220 and the second guide assembly 210, and the driving mechanism 30 is arranged to comprise the driving member 310 and the transmission member 320 connected with the output end of the driving member 310, the transmission member 320 has a first stroke and a second stroke, the transmission member 320 drives the first clamping member 110 to move in the first direction when moving in the first stroke, and the transmission member 320 drives the first clamping member 110 to move in the second direction when moving in the second stroke, so that the first clamping member 110 moves in two directions to cooperate with the second clamping member 120 to complete the clamping of the workpiece. The clamping device 100 does not need to adjust the position of the workpiece during clamping, the operation steps are simple, manual participation is not required, and it is beneficial to automatic plate loading action.

[0068] In some embodiments, as shown in Figure 1 、 Figure 5 The second guide assembly 210 includes a first guide plate 2101 and a second guide plate 2102 arranged opposite to each other along the second direction, and the first guide plate 2101 is arranged between the transmission member 320 and the second guide plate 2102, so that the positions of the three are compactly arranged, the space can be saved, and the volume of the clamping device 100 can be reduced.

[0069] The first guide plate 2101 can guide the transmission member 320 to move along the driving direction of the driving member 310. For example, the driving direction of the driving member 310 is the left-right direction, and the first guide plate 2101 can provide a guiding effect for the movement of the transmission member 320, thereby improving the reliability of the movement of the transmission member 320.

[0070] The second guide plate 2102 can guide the transmission member 320 to move along the second direction, so that the transmission member 320 drives the first clamping member 110 to approach the second clamping member 120. The transmission member 320 acts on the first clamping member 110 to drive the first clamping member 110 to move along the second direction. The second guide plate 2102 guides the transmission member 320, thereby guiding the first clamping member 110.

[0071] In some embodiments, as shown in Figure 1 、 Figure 7 、 Figure 8 、 Figure 10 The transmission member 320 is provided with a first guide groove 32011, and the first clamping member 110 is provided with a first guide member 1101. The first guide member 1101 is slidably arranged in the first guide groove 32011. The first guide groove 32011 includes a first portion 301 and a second portion 302 connected and communicated with each other. The second portion 302 extends along the driving direction. An included angle is formed between the second portion 302 and the first portion 301, that is, an included angle is formed between the first portion 301 and the driving direction. When the plate body 3201 moves along the driving direction, the first portion 301 can drive the first guide member 1101 to move in the first direction.

[0072] The first guide member 1101 moves along the first portion 301 to form a first stroke, and the first guide member 1101 moves along the second portion 302 to form a second stroke. When the first guide member 1101 moves in the first portion 301, the first clamping member 110 moves along the first direction, so that the first front end 110a of the first clamping member 110 and the second front end 120a of the second clamping member 120 are staggered or parallel. When the first guide member 1101 moves in the second portion 302, the first clamping member 110 moves along the second direction, so that the first front end 110a of the first clamping member 110 and the second front end 120a of the second clamping member 120 approach or move away from each other.

[0073] Specifically in operation, as shown in Figure 2 、 Figure 3 、 Figure 4 、 Figure 10 illustrated, starting from one end of the first part 301 and ending at one end of the second part 302, initially, the first guide 1101 is at the starting position, and the first clamping member 110 is offset relative to the second clamping member 120 (one side of the first clamping member 110 and the second clamping member 120 is provided with a clamping part, at this time, the two clamping parts are not aligned vertically), at this time, it can be used to place the workpiece from top to bottom between the first clamping member 110 and the second clamping member 120, and the first clamping member 110 will not interfere with the placement process.

[0074] As described above, the first direction is the front-back direction, and the driving direction is the left-right direction, as shown in Figure 11 、 Figure 10 illustrated, the right end of the first clamping member 110 is provided with a driving mechanism 30. After the workpiece is placed on the second clamping member 120, the driving member 310 pulls the transmission member 320 to the right, the first part 301 forces the first guide 1101 to slide along it, driving the first clamping member 110 to slide relative to the second clamping member 120 until the first front end 110a and the second front end 120a are relatively parallel (at this time, the first front end 110a and the second front end 120a are aligned vertically), after the movement in the first part 301 ends, continue to pull the transmission member 320 to make the second part 302 force the first guide 1101 to slide along it, at this time, the protruding part 3202 of the transmission member 320 begins to contact the stop part 21021, the stop part 21021 forces the transmission member 320 to move in the second direction (up-down direction), the transmission member 320 pushes the first clamping member 110 to move close to the second clamping member 120 to clamp the workpiece.

[0075] When it is necessary to disassemble the workpiece, the driving member 310 drives the transmission member 320 to move to the left, the first part 301 cooperates with the first guide 1101 to push the first clamping member 110 to move upward and backward, the first front end 110a of the first clamping member 110 and the second front end 120a of the second clamping member 120 are offset, so that the upper end of the workpiece is not blocked, facilitating the disassembly of the workpiece.

[0076] In some embodiments, as shown in Figure 1 、 Figure 7 、 Figure 10As shown, the transmission member 320 comprises a plate body 3201 and a protruding part 3202, the plate body 3201 is connected with the output end of the driving member 310, the plate body 3201 is provided with a first guide slot 32011, the protruding part 3202 is provided on the plate body 3201, the second guide plate 2102 is provided with a stop part 21021, when the transmission member 320 moves in the second stroke, the protruding part 3202 contacts with the stop part 21021. The plate body 3201 moves in the driving direction, so that the protruding part 3202 can push the stop part 21021 in the driving direction, driving the first clamping member 110 to move in the second direction, which has simple structure and can save cost.

[0077] As shown in the drawings, Figure 1 The first guide member 1101 can be a slide column, during the movement of the transmission member 320, the first guide slot 32011 and the first guide member 1101 are in sliding fit, which can drive the first clamping member 110 to move in the first direction and the second direction, which has simple structure and can save cost.

[0078] In some embodiments, as shown in the drawings, Figure 10 The protruding part 3202 is provided with a driving slope 32021, which can contact with the stop part 21021 to drive the second guide plate 2102 to move in the second direction, as described above, the driving direction can be the left-right direction, when the plate body 3201 moves in the driving direction, the driving slope 32021 is a slope with gradually decreasing height in the advancing direction of the driving direction, therefore, after the driving slope 32021 contacts with the stop part 21021, as the plate body 3201 moves in the driving direction, the stop part 21021 can force the protruding part 3202 to move in the second direction, so that the transmission member 320 as a whole moves in the second direction, pushing the first clamping member 110 to move close to the second clamping member 120.

[0079] In some embodiments, the driving slope 32021 is a flat surface or an arc surface. It can be understood that the driving slope 32021 is designed as a flat surface, which is easy to process. The driving slope 32021 is designed as an arc surface, which moves more smoothly when contacting with the stop part 21021.

[0080] In some embodiments, as shown in the drawings, Figure 11 The stop part 21021 comprises a mounting shaft 201 and a first rolling body 202 provided on the mounting shaft 201, the first rolling body 202 contacts with the protruding part 3202. By setting the stop part 21021 to comprise the mounting shaft 201 and the first rolling body 202, the first rolling body 202 and the protruding part 3202 are in rolling fit when contacting, which can reduce friction and wear, prolonging the service life.

[0081] In some embodiments, the first rolling body 202 can be a roller or a rolling bearing.

[0082] As shown in Figure 1 some embodiments, the plate body part 3201 is provided with a plurality of protruding parts 3202, which are sequentially arranged along the driving direction. The second guide plate 2102 is provided with a plurality of stop parts 21021, which are arranged one-to-one with the plurality of protruding parts 3202. That is, the length direction of the plate body part 3201 is the same as the driving direction. The plurality of protruding parts 3202 and the plurality of stop parts 21021 are arranged in cooperation, so that the plurality of positions in the length direction of the plate body part 3201 can provide the driving force for driving the first clamping part 110 to move in the second direction, so that the plurality of positions of the first clamping part 110 can exert the clamping force on the workpiece, thereby improving the reliability of clamping.

[0083] As shown in Figure 1 some embodiments, the plate body part 3201 is provided with a plurality of first guide grooves 32011, which are sequentially arranged along the driving direction. The first clamping part 110 is provided with a plurality of first guide parts 1101, which are arranged one-to-one with the plurality of first guide grooves 32011. The plurality of first guide grooves 32011 and the plurality of first guide parts 1101 are arranged in cooperation, so that the plurality of positions in the length direction of the plate body part 3201 can provide the driving force for driving the first clamping part 110 to move in the first direction, and the plurality of positions of the first clamping part 110 can keep synchronous movement, thereby improving the reliability of movement of the first clamping part 110.

[0084] As shown in Figure 1 some embodiments, the number of the first guide grooves 32011 is equal to the number of the protruding parts 3202, and each first guide groove 32011 is arranged adjacent to the corresponding protruding part 3202.

[0085] As shown in Figure 1 , Figure 5 , Figure 6 some embodiments, the first guide plate 2101 extends along the driving direction. The first guide plate 2101 is provided with a first avoiding groove 21011, which can play an avoiding role, so that the transmission part 320, the first guide plate 2101, and the second guide plate 2102 meet the compact position layout, without affecting the contact cooperation between the transmission part 320 and the stop part 21021, so that the transmission part 320 can drive the first clamping part 110 to move in the second direction when the transmission part 320 moves in the second stroke.

[0086] As shown in Figure 1 , Figure 5 , Figure 6As shown in FIG. 10, the second guide plate 2102 is provided with a stop portion 21021, and the transmission member 320 partially penetrates the first avoiding slot 21011 and contacts the stop portion 21021 when the transmission member 320 moves in the second stroke.

[0087] In some embodiments, as shown in FIG. 1, Figure 1 , Figure 7 , Figure 10 As shown in FIG. 10, the first avoiding slot 21011 extends along the driving direction, the protruding portion 3202 is arranged in the first avoiding slot 21011 and contacts the stop portion 21021 on both sides of the first avoiding slot 21011 in the driving direction. The protruding portion 3202 can slide in the first avoiding slot 21011 during the movement of the plate body portion 3201 in the driving direction, thereby improving the reliability of the movement of the plate body portion 3201. At this time, the first avoiding slot 21011 can not only avoid but also guide.

[0088] In some embodiments, as shown in FIG. 1, Figure 1 , Figure 5 , Figure 11 As shown in FIG. 10, the second guide plate 2102 is provided with a second avoiding slot 21022, the stop portion 21021 is arranged in the second avoiding slot 21022, and the second avoiding slot 21022 can accommodate the protruding portion 3202. The second avoiding slot 21022 is provided with a plurality of second avoiding slots 21022 and a plurality of stop portions 21021 arranged one by one. The second avoiding slot 21022 can provide an accommodation space, which can reduce the size of the assembly formed by the second guide plate 2102, the first guide plate 2101 and the plate body portion 3201 in the second direction, so that the overall structure is more compact.

[0089] In some embodiments, as shown in FIG. 1, Figure 1 As shown in FIG. 1, the first clamping member 110 is provided with a second guide slot 1102 extending along the first direction, the first guide assembly 220 includes a support plate 2201 and a second guide member 2202, the second guide member 2202 is arranged on the support plate 2201, and the second guide member 2202 is arranged in the second guide slot 1102. The first direction can be the front-back direction, the second guide slot 1102 extends along the front-back direction, and the second guide member 2202 can be a slide column. The second guide member 2202 is in sliding fit with the second guide slot 1102, thereby guiding the first clamping member 110 to move along the front-back direction.

[0090] In some embodiments, as shown in FIG. 1, Figure 1As shown, one end or both ends of the transmission member 320 in the driving direction is provided with the driving member 310, and a connecting assembly 40 is arranged between the output ends of the transmission member 320 and the driving member 310, that is, the transmission member 320 can be provided with the driving member 310 at one end, and the transmission member 320 is driven to move by one driving member 310, or the two ends of the transmission member 320 are driven by the driving member 310, and the driving member 310 is connected and driven by the connecting assembly 40. For example, when the right end driving member 310 drives the transmission member 320 to move to the right, the left end driving member 310 simultaneously drives the transmission member 320 to move to the right, so that the two ends of the transmission member 320 are balanced, the movement stability is better, and the driving effect is also better.

[0091] As shown in Figure 1 , Figure 10 The connecting assembly 40 comprises a connecting seat 410 and a second rolling member 420. The connecting seat 410 is arranged on the transmission member 320, and a sliding groove 4101 is arranged on the connecting seat 410 and extends in the second direction. The second rolling member 420 is arranged on the output end of the driving member 310, and the output end moves in the driving direction. The second rolling member 420 is arranged in the sliding groove 4101. When the protruding portion 3202 and the abutting portion 21021 are in contact and fit, the transmission member 320 is driven to move as a whole in the second direction. At this time, through the cooperation of the sliding groove 4101 of the connecting seat 410 and the second rolling member 420 on the driving member 310, the movement of the transmission member 320 will not be affected by the driving member 310, and the installation of the driving member 310 is facilitated.

[0092] In some embodiments, as shown in Figure 1 , Figure 5 The first guide plate 2101 is provided with a third avoiding groove 21012, and the connecting assembly 40 is arranged in the third avoiding groove 21012. The third avoiding groove 21012 can provide an accommodation space, facilitate the arrangement of the connecting assembly 40, save space, and reduce the volume of the clamping device 100 as a whole.

[0093] In some embodiments, as shown in Figure 1 , Figure 11 , Figure 10 The clamping device 100 further comprises a side mounting plate 50, which is connected to the first guide assembly 220 and the second clamping member 120. Specifically, the side mounting plate 50 is connected to the second guide plate 2102, and the side mounting plate 50 can provide a mounting position for fixing the first guide plate 2101 and the second clamping member 120.

[0094] In some embodiments, as shown in Figure 1 The side mounting plate 50 is provided in two, and the two side mounting plates 50 are arranged at the two ends of the first guide plate 2101 and the second clamping member 120, respectively, to better fix the first guide plate 2101 and the second clamping member 120.

[0095] In some embodiments, as shown in Figure 1 , Figure 11 , Figure 10 The driving member 310 is arranged on the side mounting plate 50.

[0096] In some embodiments, as shown in Figure 1 , the first clamping member 110 is arranged between the first guide assembly 220 and the second guide assembly 210, so that the overall structural layout is more compact.

[0097] In some embodiments, as shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 The second clamping member 120 is provided with a guide column 1201, and the first clamping member 110, the first guide assembly 220 and the second guide assembly 210 are all mounted on the guide column 1201 through the guide hole 100a. The first clamping member 110 and the support plate 2201 of the first guide assembly 220 are both in sliding fit with the guide column 1201 in the second direction, and the first clamping member 110 can also be in sliding fit with the guide column 1201 in the first direction. As described above, specifically, the first clamping member 110, the first guide plate 2101, the second guide plate 2102 and the support plate 2201 can be connected through the guide column 1201, and the guide column 1201 and the guide hole 100a can also guide the first guide plate 2101 and the support plate 2201 in the second direction.

[0098] Specifically, the guide hole 100a on the first guide plate 2101, the second guide plate 2102 and the support plate 2201 is a circular through hole, which guides the first guide plate 2101, the second guide plate 2102 and the support plate 2201 in the second direction (i.e. vertical direction). The guide hole 100a on the first clamping member 110 is a waist-shaped hole, which extends in the first direction, and the waist-shaped hole is located on both sides of the first direction and abuts against the guide column 1201, so that the waist-shaped hole and the guide column 1201 can guide the first clamping member 110 in the second direction (i.e. up and down direction) and in the first direction (i.e. front and back direction).

[0099] In some embodiments, as shown in Figure 1 , Figure 2 , Figure 3 , Figure 4The guide column 1201 is provided with a reset member 1203, which is arranged between the first clamping member 110 and the second clamping member 120, and is used to keep the first clamping member 110 moving away from the second clamping member 120. The reset member 1203 can provide a reset function, so that the first clamping member 110 is reset in the second direction and automatically moves away from the second clamping member 120 when the driving member 310 removes the driving force.

[0100] In some embodiments, the reset member 1203 is a spring, which is sleeved on the guide column 1201. The spring can not only provide a stable reset function, but also reduce the cost.

[0101] In some embodiments, the driving member 310 is a telescopic member, which is telescopic along the driving direction perpendicular to the first direction and the second direction.

[0102] In some embodiments, the telescopic member is any one of a pneumatic cylinder, a hydraulic cylinder, and an electric push rod.

[0103] The clamping device 100 of the embodiments of the present application will be described below in combination with the drawings.

[0104] As shown in the drawings, the clamping device 100 comprises a clamping assembly 10, a guide mechanism 20, a driving mechanism 30, a connecting assembly 40, and a side mounting plate 50. Figures 1-11 The clamping assembly 10 comprises the first clamping member 110 and the second clamping member 120 arranged opposite to each other along the second direction, the first clamping member 110 has a first front end 110a arranged close to the workpiece, and the second clamping member 120 has a second front end 120a arranged close to the workpiece. The second direction is the up-down direction.

[0105] The guide mechanism 20 comprises a first guide assembly 220 and a second guide assembly 210, the first guide assembly 220 and the second guide assembly 210 are linked with the first clamping member 110, the first guide assembly 220 guides the first clamping member 110 to move along the first direction, and the second guide assembly 210 guides the first clamping member 110 to move along the second direction. The first clamping member 110 is arranged between the first guide assembly 210 and the second guide assembly 220.

[0106] The second guide assembly 210 comprises the first guide plate 2101 and the second guide plate 2102 arranged opposite to each other along the second direction, the transmission member 320 is arranged between the first guide plate 2101 and the second guide plate 2102, the first guide plate 2101 can guide the transmission member 320 to move along the driving direction of the driving member 310, and the second guide plate 2102 can guide the transmission member 320 to move along the second direction, so that the transmission member 320 drives the first clamping member 110 to move close to the second clamping member 120. The driving direction is the left-right direction.

[0107] ​

[0108] The first guide plate 2101 extends along the driving direction, the first guide plate 2101 is provided with a first avoiding slot 21011, the second guide plate 2102 is provided with a stop portion 21021, and the transmission member 320 partially penetrates through the first avoiding slot 21011 and is in contact with the stop portion 21021 when the transmission member 320 moves in the second stroke.

[0109] The transmission member 320 comprises a plate body portion 3201 and a protruding portion 3202.

[0110] The plate body portion 3201 is provided with a first guide slot 32011, the plate body portion 3201 is connected with the output end of the driving member 310, the protruding portion 3202 is arranged on the plate body portion 3201, the first avoiding slot 21011 extends along the driving direction, the protruding portion 3202 is arranged in the first avoiding slot 21011 and is in contact with the two sides of the first avoiding slot 21011 along the driving direction, and the protruding portion 3202 penetrates through the first avoiding slot 21011 and is in contact with the stop portion 21021. The first clamping member 110 is provided with a first guide member 1101, and the first guide member 1101 is arranged in the first guide slot 32011.

[0111] The protruding portion 3202 is provided with a driving slope 32021, the driving slope 32021 can be in contact with the stop portion 21021, so that the second guide plate 2102 drives the first clamping member 110 to move along the second direction.

[0112] The first guide slot 32011 comprises a first part 301 and a second part 302 connected with each other, the second part 302 extends along the driving direction, an included angle is formed between the second part 302 and the first part 301, the first guide member 1101 moves along the first part 301 to form a first stroke, the first guide member 1101 moves along the second part 302 to form a second stroke, when the transmission member 320 moves along the driving direction of the driving member 310, the first guide member 1101 moves in the first part 301, the first clamping member 110 moves along the first direction, and the first front end 110a of the first clamping member 110 and the second front end 120a of the second clamping member 120 are staggered or parallel.

[0113] The plate body portion 3201 is provided with five protruding portions 3202, the five protruding portions 3202 are arranged in sequence along the driving direction, the stop portion 21021 on the second guide plate 2102 is provided with five, the five stop portions 21021 and the five protruding portions 3202 are arranged one by one, the plate body portion 3201 is provided with five first guide slots 32011, the five first guide slots 32011 are arranged in sequence along the driving direction, and the first clamping member 110 is provided with five first guide members 1101, the five first guide members 1101 and the plurality of first guide slots 32011 are arranged one by one.

[0114] The second guide plate 2102 is provided with second avoiding grooves 21022, and the stop portions 21021 are arranged in the second avoiding grooves 21022 and can accommodate the protruding portions 3202. The second avoiding grooves 21022 are five in number and are arranged one by one in correspondence with the plurality of stop portions 21021.

[0115] The stop portion 21021 comprises a mounting shaft 201 and a first rolling body 202 arranged on the mounting shaft 201. The first rolling body 202 is in contact with the protruding portion 3202, and the first rolling body 202 is a roller.

[0116] The first clamping member 110 is provided with a second guide groove 1102 extending along the first direction. The first guide assembly 220 comprises a support plate 2201 and a second guide member 2202 arranged on the support plate 2201. The second guide member 2202 is arranged in the second guide groove 1102.

[0117] The second clamping member 120 is provided with guide columns 1201. The first guide plate 2101, the second guide plate 2102 and the support plate 2201 are all mounted on the guide columns 1201 through guide holes 100a. The first clamping member 110 and the support plate 2201 are in sliding fit with the guide columns 1201 along the second direction.

[0118] The guide columns 1201 are provided with return members 1203, which are springs arranged between the first clamping member 110 and the second clamping member 120. The return members 1203 are used to keep the first clamping member 110 moving away from the second clamping member 120.

[0119] The driving mechanism 30 comprises a driving member 310 and a transmission member 320 linked with the output end of the driving member 310. The driving member 310 is a hydraulic cylinder. The transmission member 320 has a first stroke and a second stroke. When the transmission member 320 moves in the first stroke, the first clamping member 110 is driven to move along the first direction, so that the first front end 110a of the first clamping member 110 and the second front end 120a of the second clamping member 120 are flush. When the transmission member 320 moves in the second stroke, the first clamping member 110 is driven to move along the second direction, so that the first clamping member 110 and the second clamping member 120 are close to each other for clamping the workpiece.

[0120] A connecting assembly 40 is disposed between the output ends of the transmission member 320 and the drive member 310. The connecting assembly 40 includes a connecting seat 410 and a second rolling member 420. The connecting seat 410 is disposed on the transmission member 320 and has a sliding groove 4101 extending along a second direction. The second rolling member 420 is disposed on the output end of the drive member 310, and the output end moves along the driving direction. The second rolling member 420 is disposed within the sliding groove 4101. The transmission member 320 has drive members 310 at both ends in the driving direction, and the connecting assembly 40 is provided between the transmission member 320 and the drive member 310 at either end.

[0121] The first guide plate 2101 is provided with a third clearance groove 21012, and the connecting component 40 is provided in the third clearance groove 21012.

[0122] There are two side mounting plates 50, which are respectively located at both ends of the first guide plate 2101 and the second clamping member 120. The side mounting plates 50 are connected to the second guide plate 2102 and the second clamping member 120. The driving member 310 is located on the side mounting plate 50.

[0123] The specific work process is as follows:

[0124] When the workpiece is loaded, it is placed against the second clamping member 120. The right-end driving member 310 pulls the transmission member 320 to the right, and the horizontal movement of the transmission member 320 is converted into the horizontal movement of the first clamping member 110 through the first guide member 1101, so that the first front end 110a and the second front end 120a are aligned. Then, the right-end driving member 310 continues to pull the transmission member 320 to the right. The protrusion 3202 abuts against the first rolling element 202 of the stop part 21021, so that the first clamping member 110 is pressed down and closed with the second clamping member 120, while the reset member 1203 is compressed.

[0125] When the workpiece is unloaded, the right-end drive member 310 pulls the transmission member 320 to the left. The protrusion 3202 on the transmission member 320 moves away from the first rolling element 202 of the stop part 21021, and at the same time, the reset member 1203 resets and extends, causing the first clamping member 110 to separate from the second clamping member 120. The right-end drive member 310 continues to pull the transmission member 320 to the left. The horizontal movement of the transmission member 320 is converted into the vertical movement of the first clamping member 110 by the first guide member 1101. The first clamping member 110 moves upward and backward to be misaligned with the second clamping member 120, thereby removing the plate.

[0126] like Figure 12 As shown, the testing machine 1000 according to an embodiment of the present invention includes: a body 200 and a clamping device 100.

[0127] There are two clamping devices 100, which are located inside the body 200 and arranged opposite to each other. The clamping devices 100 are the same as those mentioned above.

[0128] like Figure 13 As shown, the testing machine 1000 can be an impedance tester or a flying probe tester. The workpiece is a PCB board 300. When working, the PCB board 300 is placed between two clamping devices 100. The PCB board 300 is fixed and clamped by the two clamping devices 100. During the clamping process, the first clamping member 110 extends first, and then keeps it flush with the second clamping member 120 before pressing down to perform the clamping action.

[0129] According to the present invention, the testing machine 1000 can avoid the need to adjust the distance between the two sets of clamps during the clamping process by using the clamping device 100, thereby reducing the labor intensity of workers and realizing the automated loading action from top to bottom, without affecting the side structure during the automated operation.

[0130] Other configurations and operations of the testing machine 1000 according to embodiments of the present invention are known to those skilled in the art and will not be described in detail here.

[0131] In the description of this specification, references to terms such as "some embodiments," "optionally," "furthermore," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0132] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A clamping device, characterized in that The utility model relates to a clamping device, comprising: a clamping assembly comprising a first clamping member and a second clamping member oppositely arranged along a second direction, the first clamping member having a first front end arranged close to a workpiece, the second clamping member having a second front end arranged close to the workpiece; a guide mechanism comprising a first guide assembly and a second guide assembly, the first guide assembly and the second guide assembly being linked with the first clamping member, the first guide assembly guiding the first clamping member to move along a first direction, and the second guide assembly guiding the first clamping member to move along a second direction; a driving mechanism comprising a driving member and a transmission member linked with an output end of the driving member, the transmission member having a first stroke and a second stroke, the transmission member driving the first clamping member to move along the first direction when moving within the first stroke, so as to make the first front end of the first clamping member and the second front end of the second clamping member flush or staggered, the transmission member driving the first clamping member to move along the second direction when moving within the second stroke, so as to make the first clamping member and the second clamping member close to each other for clamping the workpiece or move away from each other for releasing the workpiece; the transmission member is provided with a first guide groove, the second guide assembly comprises a first guide plate and a second guide plate oppositely arranged along the second direction, the transmission member comprises a plate body portion and a protruding portion, the plate body portion is linked with the output end of the driving member, the plate body portion is provided with the first guide groove, the protruding portion is arranged on the plate body portion, the second guide plate is provided with a stop portion, and the protruding portion is in contact with the stop portion when the transmission member moves within the second stroke.

2. The clamping device of claim 1, wherein the first guide plate is arranged between the transmission member and the second guide plate, the first guide plate can guide the transmission member to move along a driving direction of the driving member, and the second guide plate can guide the transmission member to move along a second direction, so as to make the transmission member drive the first clamping member to close to the second clamping member.

3. The clamping device of claim 2, wherein the first clamping member is provided with a first guide member, the first guide member is slidably arranged in the first guide groove, the first guide groove comprises a first portion and a second portion connected in communication, the second portion extends along the driving direction, and an included angle is formed between the second portion and the first portion, wherein the first guide member moves along the first portion to form the first stroke, the first guide member moves along the second portion to form the second stroke, the first clamping member moves along the first direction when the first guide member moves within the first portion, so as to make the first front end of the first clamping member and the second front end of the second clamping member staggered or parallel; and the first clamping member moves along the second direction when the first guide member moves within the second portion, so as to make the first front end of the first clamping member and the second front end of the second clamping member close to each other or move away from each other.

4. The clamping device of claim 1, wherein The convex part is provided with a driving slope, which can be in contact with the stop part to drive the second guide plate to move the first clamping member in the second direction.

5. The clamping device of claim 1, wherein The stop part comprises a mounting shaft and a first rolling body provided on the mounting shaft, and the first rolling body is in contact with the convex part.

6. The clamping device of claim 1, wherein The plate body is provided with a plurality of convex parts arranged in sequence in the driving direction, and the second guide plate is provided with a plurality of stop parts arranged in one-to-one correspondence with the plurality of convex parts. The plate body is provided with a plurality of first guide grooves arranged in sequence in the driving direction, and the first clamping member is provided with a plurality of first guide members arranged in one-to-one correspondence with the plurality of first guide grooves.

7. The clamping device of claim 1, wherein The first guide plate extends in the driving direction, and the first guide plate is provided with a first avoiding groove extending in the driving direction, the convex part is arranged in the first avoiding groove and is stopped by the two sides of the first avoiding groove in the driving direction, and when the transmission member moves in the second stroke, the convex part passes through the first avoiding groove and is in contact with the stop part.

8. The clamping device of claim 6, wherein The second guide plate is provided with a second avoiding groove, the stop part is arranged in the second avoiding groove, and the second avoiding groove can accommodate the convex part. The second avoiding groove is provided with a plurality of second avoiding grooves arranged in one-to-one correspondence with the plurality of stop parts.

9. The holding device according to claim 1, characterized in that The first clamping member is provided with a second guide groove extending in the first direction, The first guide assembly comprises a support plate and a second guide member, the second guide member is arranged on the support plate, and the second guide member is arranged in the second guide groove.

10. The clamping device according to any one of claims 1-9, characterized in that, One end or both ends of the transmission member in the driving direction are provided with the driving member, a connecting assembly is arranged between the transmission member and the output end of the driving member, and the connecting assembly comprises: A connecting seat is arranged on the transmission member, and a sliding groove is arranged on the connecting seat and extends in the second direction; A second rolling member is arranged on the output end of the driving member, the output end moves in the driving direction, and the second rolling member is arranged in the sliding groove.

11. The clamping device according to any one of claims 1-9, characterized in that The clamping device further comprises a side mounting plate connected to the second guide assembly and the second clamping member, and the driving member is connected to the side mounting plate.

12. The clamping device according to any one of claims 1-9, characterized in that The second clamping member is provided with a guide column, the first clamping member, the first guide assembly and the second guide assembly are all mounted on the guide column through a guide hole, and the first clamping member and the first guide assembly are in sliding fit with the guide column in the second direction.

13. The clamping device of claim 12, wherein, The guide column is provided with a reset member arranged between the first clamping member and the second clamping member, and the reset member is used to keep the first clamping member moving away from the second clamping member.

14. A testing machine characterized by, It comprises: A machine body; two clamping devices, the two clamping devices are arranged in the machine body and opposite to each other, and the clamping device is any one of the clamping devices in claims 1 to 13.

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