CN216991566U - Circuit board clamping jig - Google Patents

Abstract

A circuit board clamping jig comprises a mounting seat, a first clamping assembly and a second clamping assembly, wherein the first clamping assembly and the second clamping assembly are arranged on the mounting seat and used for clamping a circuit board to be clamped, the first clamping assembly comprises a first limiting part and a first pressing part which are oppositely arranged, and a first driving part which is connected with the first pressing part and is arranged on the mounting seat in a sliding manner, the second clamping assembly comprises a second limiting part and a second pressing part which are oppositely arranged, and a second driving part which is connected with the second pressing part and is arranged on the mounting seat in a sliding manner, the clamping jig further comprises a linkage mechanism which enables the first driving part and the second driving part to be in linkage fit, and when the first pressing part is driven by external force to move away from the direction of the first limiting part, the second driving part is linked to drive the second pressing part to move away from the direction of the second limiting part; the circuit board clamping device has the advantages that the multiple clamping pieces and the circuit board can be simultaneously detached, the loosening and detaching time of the circuit board is reduced, and the production efficiency is improved.

Description

Circuit board clamping jig

Technical Field

The utility model relates to the technical field of circuit boards, in particular to a circuit board clamping jig.

Background

At present, a circuit board is widely applied to various electronic products such as a communication computer and a computer, and the circuit board is fully provided with circuit wires and various electronic parts. In the manufacturing process of a circuit board or an electronic product, when the circuit board needs to be transferred or placed, the circuit board is usually transferred and placed to a corresponding machine table manually, and then the circuit board is fixed by using a clamping jig, so that the circuit board is convenient to produce. The clamping fixture realizes that the circuit board to be clamped is clamped and fixed by respectively arranging a limiting part and a pressing part at two opposite ends of the circuit board. However, current centre gripping tool can only carry out centre gripping and spacing to the circuit board in an orientation, when needs follow different directions to the circuit board carry out the centre gripping simultaneously fixed with spacing, then need set up the relative locating part that sets up of multiunit and compress tightly the piece and just can realize, because a plurality of compress tightly between the piece mutually independent, when carrying out the loose operation of unloading to a plurality of tip of circuit board, a plurality of pieces that compress tightly all need unload from the circuit board alone, increased the loose time of unloading of circuit board, production efficiency is low.

Disclosure of Invention

The utility model aims to provide a circuit board clamping jig for simultaneously detaching a plurality of pressing pieces from a circuit board.

In order to achieve one of the above objectives of the present invention, an embodiment of the present invention provides a circuit board clamping fixture, which includes a mounting base, and a first clamping assembly and a second clamping assembly disposed on the mounting base for clamping a circuit board to be clamped, the first clamping component comprises a first limiting piece and a first pressing piece which are oppositely arranged, and a first driving piece which is connected with the first pressing piece and is arranged on the mounting seat in a sliding way, the second clamping assembly comprises a second limiting piece and a second pressing piece which are oppositely arranged, and a second driving piece which is connected with the second pressing piece and is arranged on the mounting seat in a sliding manner, the clamping fixture also comprises a linkage mechanism which enables the first driving piece and the second driving piece to be in linkage fit, when the first driving part is driven by external force to move the first pressing part in the direction deviating from the first limiting part, the second driving part is linked to drive the second pressing part to move in the direction deviating from the second limiting part.

As a further improvement of the embodiment of the present invention, the linkage mechanism includes a first abutting surface disposed on the first driving member, and a second abutting surface disposed on the second driving member and engaged with the first abutting surface, and a distance between the first abutting surface and the second pressing member gradually increases from the first limiting member toward the first pressing member, so that when the first driving member drives the first pressing member to move away from the first limiting member, the first abutting surface drives the second driving member to move away from the first driving member.

As a further improvement of the embodiment of the present invention, projections of the first abutment surface and the second abutment surface on a horizontal plane are parallel to each other.

As a further improvement of the embodiment of the present invention, the mounting seat includes a base, the second driving element is slidably disposed on the base, the second clamping assembly further includes a second elastic element abutting between the second driving element and the base, the second elastic element abuts against a side of the second driving element away from the linkage mechanism, when the external force is released to loosen the first driving element, the second elastic element drives the second driving element to drive the second pressing element to move toward the second limiting element, and the first driving element is linked to drive the first pressing element to move toward the first limiting element.

As a further improvement of the embodiment of the present invention, the first clamping assembly further includes a first sliding assembly disposed on the base and connected to the first driving member, the second clamping assembly further includes a second sliding assembly disposed on the base and connected to the second driving member, and a sliding direction of the first sliding assembly and a sliding direction of the second sliding assembly are disposed at a certain angle.

As a further improvement of the embodiment of the present invention, the first clamping assembly further includes a first elastic member abutting between the first driving member and the base, and the first elastic member abuts against a side of the first driving member departing from the first limiting member.

As a further improvement of the first embodiment of the present invention, the second driving member includes a second plate main body, an end portion of the second plate main body on a side close to the first driving member has a second inclined wall, the first driving member includes a first plate main body and a first plate projection connected to the first plate main body on a side close to the second driving member, the first plate projection has a first inclined wall opposite to the second inclined wall, the first abutting surface is provided on the first inclined wall, and the second abutting surface is provided on the second inclined wall.

As a further improvement of the first embodiment of the present invention, the first driving member further includes a first board mounting block connected to the first board main body, and a first mounting hole provided on the first board mounting block, the second driving member further includes a second board mounting block connected to the second board main body, and a second mounting hole provided on the second board mounting block, the base is provided with a first mounting groove matched with the first driving member, and a second mounting groove matched with the second driving member, one end of the first elastic member is matched and provided in the first mounting hole, and the other end abuts against an inner wall of the first mounting groove, one end of the second elastic member is matched and provided in the second mounting hole, and the other end abuts against an inner wall of the second mounting groove.

As a further improvement of the embodiment of the present invention, the sliding direction of the first sliding assembly and the sliding direction of the second sliding assembly are perpendicular to each other, the first pressing member includes at least two first pressing pins connected to the first driving member, the second pressing member includes at least two second pressing pins connected to the second driving member, the at least two first pressing pins are arranged in a row perpendicular to the sliding direction of the first sliding assembly, and the at least two second pressing pins are arranged in a row perpendicular to the sliding direction of the second sliding assembly.

As a further improvement of the embodiment of the present invention, the mounting base further includes an upper cover plate covering the upper portions of the first driving element and the second driving element, the first limiting element includes a first limiting pin disposed on the upper cover plate and corresponding to the first pressing pin, and the second limiting element includes a second limiting pin disposed on the upper cover plate and corresponding to the second pressing pin.

As a further improvement of the embodiment of the utility model, the holding fixture further comprises an operating part connected with the first driving part, the operating part has a driving part hinged with the first driving part and a handheld part connected with the driving part, the driving part is provided with a hinge hole or a hinge shaft extending in the vertical direction and hinged with the first driving part, the driving part has a first wall deviated from one end of the handheld part and a second wall adjacent to the first wall, a first distance is formed between the first wall and the axis of the hinge hole or the hinge shaft, a second distance is formed between the second wall and the axis of the hinge hole or the hinge shaft, the first distance and the second distance are different, the driving part rotates around the axis of the hinge hole or the hinge shaft, and when the first wall or the second wall abuts against the side wall of the mounting seat respectively, the distances between the hinge hole or the hinge shaft and the side wall of the mounting seat are different, so as to drive the first driving member to move along the sliding direction of the first sliding assembly.

As a further improvement of an embodiment of the present invention, the clamping fixture includes at least two first clamping assemblies and at least two second clamping assemblies corresponding to the at least two first clamping assemblies, so as to simultaneously clamp and position the at least two circuit boards, the first driving members of the at least two first clamping assemblies are sequentially arranged, and adjacent first driving members are locked with each other.

As a further improvement of the embodiment of the present invention, the adjacent first driving members are mutually locked and configured, a limiting block is disposed at one end of one of the adjacent first driving members away from the operating member, a limiting groove matched with the limiting block is disposed on the other of the adjacent first driving members, a first state in which the limiting blocks are mutually abutted and a second state in which the limiting blocks are disengaged from the abutting are provided between the limiting blocks and the limiting grooves, and in the first state, the first driving members of the at least two first clamping assemblies move along with the operating member.

Compared with the prior art, the linkage matching between the first driving piece and the second driving piece is realized through the linkage mechanism, so that when an operator unloads the first pressing piece from the circuit board, the second driving piece is linked to drive the second pressing piece to simultaneously unload from the circuit board, a plurality of pressing pieces can be driven to simultaneously unload from the circuit board by one-time operation, the circuit board unloading time is shortened, and the production efficiency is improved.

Drawings

Fig. 1 is a schematic perspective view illustrating a state where a circuit board clamping jig clamps a circuit board according to a preferred embodiment of the present invention;

FIG. 2 is an exploded view of the circuit board clamping fixture of FIG. 1;

FIG. 3 is a top view of the circuit board clamping fixture of FIG. 2 with the upper cover plate hidden;

FIG. 4 is a schematic perspective view of FIG. 3;

FIG. 5 is an exploded schematic view of FIG. 3;

fig. 6 is a top view of the circuit board clamping fixture in fig. 2, wherein the clamping fixture is in a detachable state and the upper cover plate is hidden.

Detailed Description

The present invention will be described in detail below with reference to specific embodiments shown in the drawings. These embodiments are not intended to limit the present invention, and structural, methodological, or functional changes made by those skilled in the art according to these embodiments are included in the scope of the present invention.

It will be understood that terms used herein such as "upper," "lower," "outer," "inner," and the like, refer to relative spatial positions of one element or feature with respect to another element or feature as illustrated in the figures for purposes of explanation. The spatially relative positional terms may be intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures.

The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly. As in the present invention, for convenience of description, when the clamping jig is used normally, the direction toward the ground is downward, and the direction away from the ground is upward; the direction parallel to the ground is a horizontal direction, and the direction vertical to the ground is a vertical direction; the side close to the user is the front side, and the side far away from the user is the back side.

Referring to fig. 1 to 6, a circuit board clamping jig according to a preferred embodiment of the present invention is capable of clamping and fixing a circuit board 80 from different directions at the same time, so as to perform operations such as processing and detecting on the circuit board.

Specifically, referring to fig. 1, a circuit board clamping fixture includes a mounting base 10, and a first clamping assembly 20 and a second clamping assembly 30, which are disposed on the mounting base 10 and are used for clamping a circuit board 80 to be clamped. In this embodiment, the mounting seat 10 is used for carrying a plurality of clamping assemblies and is detachably mounted on a corresponding operating table, so as to be mounted and used according to the needs of an operator. Wherein, first centre gripping subassembly 20 and second centre gripping subassembly 30 are used for carrying out the centre gripping spacingly to circuit board 80 from equidirectional to improve the stability when circuit board 80 is fixed in the centre gripping tool, perhaps carry on spacingly to the circuit board from equidirectional.

Specifically, referring to fig. 2, the first clamping assembly 20 includes a first limiting member 21 and a first pressing member 23 which are oppositely disposed, and a first driving member 25 connected to the first pressing member 23 and slidably disposed on the mounting base 10, and the second clamping assembly 30 includes a second limiting member 31 and a second pressing member 33 which are oppositely disposed, and a second driving member 35 connected to the second pressing member 33 and slidably disposed on the mounting base 10.

In this embodiment, the first limiting member 21 and the first pressing member 23 are located on opposite sides of the circuit board 80, wherein the first limiting member 21 is fixedly connected to the mounting base 10, and the first pressing member 23 is fixedly connected to the first driving member 25 and is slidably disposed on the mounting base 10 along with the first driving member 25. In this way, the operator can slide and adjust the first driving member 25 to change the distance between the first pressing member 23 and the first limiting member 21, so as to clamp or release the circuit board 80 in the first clamping assembly 20. The second limiting member 31 and the second pressing member 33 are respectively disposed on opposite sides of the circuit board, and are located in different directions from the first limiting member 21 and the first pressing member 23, so as to clamp and limit the circuit board from different directions. Similarly, the second limiting member 31 is fixedly connected to the mounting base 10, the second pressing member 33 is fixedly connected to the second driving member 35 and is slidably disposed on the mounting base 10 along with the second driving member 35, and the second driving member 35 drives the second pressing member 33 to slide, so as to change the distance between the second pressing member 33 and the second limiting member 31, thereby clamping or releasing the circuit board 80 in the second clamping assembly 30.

Furthermore, the clamping fixture further comprises a linkage mechanism 40 for linking and matching the first driving part 25 and the second driving part 35, when the first driving part 25 is driven by an external force and drives the first pressing part 23 to move away from the first limiting part 21, the second driving part 35 is linked and drives the second pressing part 33 to move away from the second limiting part 31, so that the clamped circuit board is loosened at the same time.

In this embodiment, when the operator needs to release the circuit board 80 on the clamping fixture, the operator drives the first pressing member 23 to move away from the first limiting member 21 by driving the first driving member 25 to move, and due to the setting of the linkage mechanism 40, the second driving member 35 is linked by the first driving member 25 to move, and drives the second pressing member 33 to move away from the second limiting member 31, thereby releasing the clamped circuit board. In the process of loosening and disassembling the circuit board 80, the circuit board can be loosened by the clamping assemblies in different directions only by operating the first driving piece 25, so that the circuit board can be quickly disassembled, the workload of operators is reduced, and the production efficiency is improved.

Specifically, referring to fig. 3, the linkage mechanism 40 includes a first contact surface 41 provided on the first driver 25 and a second contact surface 43 provided on the second driver 35 and contacting the first contact surface 41. In this embodiment, the first abutting surface 41 of the linkage mechanism 40 is directly disposed on the first driving member 25, and the second abutting surface 43 is directly disposed on the second driving member 35, so that additional components are not required to be added, the internal space of the clamping fixture is saved, and the manufacturing cost of the clamping fixture is reduced. The first contact surface 41 and the second contact surface 43 are engaged with each other and contact each other, so that when one of the first driving member 25 and the second driving member 35 moves, the other one is linked and moves accordingly, thereby improving the instantaneity of the linkage.

Of course, in other embodiments, the linkage 40 may also be a gear drive of a rack and pinion.

Further, the distance between the first abutting surface 41 and the second pressing member 33 gradually increases from the first limiting member 21 toward the first pressing member 23, so that when the first driving member 25 drives the first pressing member 23 to move away from the first limiting member 21, the first abutting surface 41 drives the second driving member 35 to move away from the first driving member 25.

In this embodiment, as shown in fig. 3, when the first clamping assembly 20 is released, the first driving member 25 drives the first pressing member 23 to move away from the first limiting member 21, i.e. move from back to front, and at this time, the first abutting surface 41 moves together with the first driving member 25. And because the distance between the first abutting surface 41 and the second pressing member 33 gradually increases from back to front, when the first driving member 25 moves from back to front, the first abutting surface 41 will drive the second abutting surface 43 disposed on the second driving member 35 to move towards the direction departing from the first driving member 25, so that the second driving member 35 drives the second pressing member 33 to depart from the second limiting member 31, and at this time, the second clamping assembly 30 is also released, thereby simultaneously releasing a plurality of clamping assemblies.

Further, the projections of the first contact surface 41 and the second contact surface 43 on the horizontal plane are parallel to each other. In this embodiment, the first contact surface 41 and the second contact surface 43 are each formed as a plane perpendicular to a horizontal plane, and the first contact surface 41 and the second contact surface 43 are parallel to each other. The second abutting surface 43 is a plane structure parallel to the first abutting surface 41, so that the linkage fit between the first driving element 25 and the second driving element 35 is more stable, and the stability of the linkage mechanism 40 is improved. The horizontal plane refers to a plane parallel to the front-back and left-right directions, and can be defined as a plane on which the operation table is located when the mounting base 10 is fixed on the operation table, and can be defined as a plane on which the first driving member 25 and the second driving member 35 slide.

Specifically, in this embodiment, the first driving member 25 can slide along a first direction (i.e. a front-back direction), and the second driving member 35 is located at one side of the first driving member 25 and can slide along a second direction (i.e. a left-right direction), where the first direction is perpendicular to the second direction, but in some embodiments, the first direction and the second direction may have an angle instead of being perpendicular. The first contact surface 41 is a tapered surface provided on the first driver 25 toward the second driver 35, and the second contact surface 43 is a tapered surface of the second driver 27 toward the first driver 25, that is, the first contact surface 41 and the second contact surface 43 are tapered surfaces that are parallel to each other.

Of course, in other embodiments, the first contact surface 41 and the second contact surface 43 may be mutually engaged stepped surfaces, that is, the first contact surface 41 and the second contact surface 43 can limit the vertical offset between the first driving member 25 and the second driving member 35 after being engaged. For example, the cross section of the first abutment surface 41 is provided in an "L" shape, while the cross section of the second abutment surface 43 is provided in a "7" shape.

Further, the mounting seat 10 includes a base 11, the second driving member 35 is slidably disposed on the base 11, the second clamping assembly 30 further includes a second elastic member 37 abutting between the second driving member 35 and the base 11, and the second elastic member 37 abuts against a side of the second driving member 35 departing from the linkage mechanism 40. In this embodiment, the second elastic element 37 is disposed such that the second abutting surface 43 elastically abuts against the first abutting surface 41. Moreover, the elastic force of the second elastic element 37 acting on the second driving element 35 finally acts on the clamped circuit board 80 through the second pressing element 33, so that the circuit board 80 is prevented from being damaged due to overlarge pressure applied by the second pressing element 33 while the circuit board 80 is clamped and fixed by the second clamping assembly 30.

Specifically, when the external force is released to loosen the first driving member 25, the second elastic member 37 drives the second driving member 35 to drive the second pressing member 33 to move toward the second limiting member 31, and the first driving member 25 is linked to drive the first pressing member 23 to move toward the first limiting member 21, so that the first clamping assembly and the second clamping assembly clamp the circuit board to be clamped on the mounting base from different directions at the same time. In this embodiment, after the user finishes releasing the circuit board, the previous circuit board is taken down, and after the circuit board to be processed is replaced, the external force acting on the first driving member 25 is released, and the second elastic member 37 is restored to the natural state from the compressed state, so as to drive the second driving member 35 to move toward the first driving member 25, and drive the second pressing member 33 to move toward the second limiting member 31, until the second clamping assembly 30 clamps the circuit board 80. Meanwhile, the second abutting surface 43 drives the first abutting surface 41 disposed on the first driving member 25 to move from front to back, that is, the first driving member 25 is linked by the linking mechanism 40 and drives the first pressing member 23 to move toward the first limiting member 21, so as to clamp the circuit board 80. In this way, the user only needs to release the external force acting on the first driving member 25, and the first clamping assembly 20 and the second clamping assembly 30 automatically clamp the circuit board 80, so that the clamping time of the circuit board 80 is reduced, and the production efficiency is further improved.

Specifically, referring to fig. 4 and 5, the first clamping assembly 20 further includes a first sliding assembly 27 disposed on the base 11 and connected to the first driving member 25, and the second clamping assembly 30 further includes a second sliding assembly 39 disposed on the base 11 and connected to the second driving member 35. In this embodiment, the first sliding assembly 27 includes a sliding rail fixedly connected to the base 11 and a sliding block fixedly connected to the first driving member 25, and the sliding block can slide on the sliding rail. Similarly, the second sliding assembly 39 includes a sliding track fixedly connected to the base 11 and a sliding block fixedly connected to the second driving member 35, and the sliding block can slide on the sliding track. For ease of manufacture, the first and second slide assemblies 27 and 39 may employ the same gauge of slide rails and slides. Moreover, the first sliding component 27 and the second sliding component 39 both adopt linear slide rails, that is, the sliding direction of the first sliding component 27 and the sliding direction of the second sliding component 39 are both a straight line.

Further, the sliding direction of the first sliding component 27 and the sliding direction of the second sliding component 39 are arranged at a certain angle.

Specifically, the sliding direction of the first sliding component 27 refers to a center line of a linear guideway adopted by the first sliding component 27, i.e. a direction or a track along which the first driving component 25 moves. The sliding direction of the second sliding member 39 refers to the center line of the linear slide rail adopted by the second sliding member 39, i.e. the direction or track along which the second driving member 35 moves.

In this embodiment, because the moving direction or the track of the first driving element 25 and the moving direction or the track of the second driving element 35 are set at a certain angle, the moving direction or the track of the first pressing element 23 and the moving direction or the track of the second pressing element 33 are also set at a certain angle, and thus, the first clamping assembly 20 and the second clamping assembly 30 can meet the requirements of the circuit board 80 on different clamping parts, or can clamp the circuit board from different directions for limitation.

Further, the first clamping assembly 20 further includes a first elastic member 29 abutting between the first driving member 25 and the base 11, and the first elastic member 29 abuts against a side of the first driving member 25 departing from the first limiting member 21. As shown in fig. 3, in this embodiment, the first elastic element 29 is configured to provide a forward and backward elastic pressing force to the first driving element 25 when the clamping fixture is in the clamping state, and then provide an elastic pre-tightening force to the first pressing element 23 to elastically abut against the circuit board 80. Moreover, when the clamping fixture is in the releasing state, after the operator releases the force acting on the first driving element 25, the first elastic element 29 drives the first driving element 25 to move from the front to the back, and then drives the first pressing element 23 to move toward the first limiting element 21, until the first clamping assembly 20 completely clamps the circuit board 80. In addition, since the first elastic member 29 can drive the first driving member 25 to move, the force applied to the first driving member 25 by the second elastic member 37 through the linkage mechanism 40 can be reduced, and the linkage between the first driving member 25 and the second driving member 35 can be smoother.

Specifically, with continued reference to fig. 4, the second driving member 35 includes a second plate body 35a, and an end portion of the second plate body 35a adjacent to the first driving member 25 has a second inclined wall 35 b. In the present embodiment, the second plate main body 35a extends along the sliding direction of the second slide module 39, and the second inclined wall 35b is provided at an end portion of the second plate main body 35 a.

Specifically, the first driving member 25 includes a first plate body 25a and a first plate protrusion 25b connected to a side of the first plate body 25a close to the second driving member 35, and the first plate protrusion 25b has a first inclined wall 25c opposite to the second inclined wall 35 b. In this embodiment, the first plate body 25a extends along the sliding direction of the first sliding member 27, the first plate protrusion 25b extends along the direction perpendicular to the sliding direction of the first sliding member 27, the first inclined wall 25c is disposed at the end of the first plate protrusion 25b, and forms a wedge structure with the second inclined wall at the end of the second plate body.

Specifically, the first contact surface 41 is provided on the first inclined wall 25c, and the second contact surface 43 is provided on the second inclined wall 35 b. In this embodiment, the first abutting surface 41 is formed on the first inclined wall 25c at the end of the first plate protrusion 25b, and the second abutting surface 43 is formed on the second inclined wall 35b at the end of the second plate main body 35a, so as to more reasonably arrange the linkage mechanism 40, save the space of the base 11, and reduce the manufacturing cost of the clamping jig. Of course, in some embodiments, the first inclined wall may also be recessed in the side wall of the first board main body, that is, the first board protruding block is omitted, and the recessed first inclined wall is directly disposed on the side wall of the first board main body close to the second driving part.

Specifically, the base 11 is provided with a first mounting groove 11a matched with the first driving member 25 and a second mounting groove 11b matched with the second driving member 35. In this embodiment, after the first driving member 25 is mounted in the first mounting groove 11a, the horizontal deviation of the first driving member 25 is limited. After the second driving member 35 is disposed in the second mounting groove 11b, the second driving member 35 is restricted from shifting in the horizontal direction.

Specifically, the first driving member 25 further has a first board mounting block 25d connected to the first board main body 25a, and a first mounting hole 25e provided in the first board mounting block 25d, and the second driving member 35 further has a second board mounting block 35c connected to the second board main body 35a, and a second mounting hole 35d provided in the second board mounting block 35 c. In this embodiment, the first board mounting blocks respectively protrude from two sides of the first board main body, the first mounting holes are respectively formed in the first board mounting blocks at two sides and are symmetrical about the central axis of the first sliding member, and the axis of the first mounting hole 25e is parallel to the sliding direction of the first sliding member 27, so that the direction of the elastic force provided to the first driving member 25 by the first elastic members 29 at two sides of the first board main body is parallel to the sliding direction of the first sliding member 27. The second board mounting blocks respectively protrude from two sides of the second board main body, the second mounting holes are respectively formed in the second board mounting blocks at two sides and are symmetrical about the central axis of the second sliding assembly, and the axis of the second mounting hole 35d is parallel to the sliding direction of the second sliding assembly 39, so that the direction of the elastic force provided by the second elastic member 37 at two sides of the second board main body to the second driving member 35 is parallel to the sliding direction of the second sliding assembly 39. And then the first driving member 25 is more smoothly slid by the elastic force from the first elastic member 29. So that the second driving member 35 slides more smoothly after receiving the elastic force from the second elastic member 37.

Specifically, one end of the first elastic member 29 is disposed in the first mounting hole 25e in a matching manner, the other end of the first elastic member abuts against the inner wall of the first mounting groove 11a, one end of the second elastic member 37 is disposed in the second mounting hole 35d in a matching manner, and the other end of the second elastic member abuts against the inner wall of the second mounting groove 11 b.

In this embodiment, the first elastic member 29 is fitted in the first mounting hole 25e, so that it is possible to prevent radial displacement, i.e., displacement in the vertical and horizontal directions, from occurring in the first mounting hole 25 e. Further, since both ends of the first elastic member 29 are respectively in contact with the inner wall of the first mounting groove 11a and the first mounting hole 25e, the first elastic member 29 cannot be displaced in the front-rear direction. Similarly, after the second elastic member 37 is disposed in the second mounting hole 35d in a matching manner, radial offset, that is, offset in the up-down direction and the front-back direction, can be prevented from being generated in the second mounting hole 35 d. Further, since both ends of the second elastic member 37 respectively abut against the inner wall of the second mounting groove 11b and the inside of the second mounting hole 35d, the second elastic member 37 cannot be displaced in the front-rear direction. Therefore, the first elastic element 29 and the second elastic element 37 can complete the limiting without fixing or mounting, and the manufacturing cost of the clamping jig is saved.

Further, with continued reference to fig. 3, the sliding direction of the first sliding member 27 and the sliding direction of the second sliding member 39 are perpendicular to each other. In this embodiment, the moving tracks of the first driving element 25 and the second driving element 35 are perpendicular to each other, and the extending direction of the first plate protrusion 25b is parallel to the extending direction of the second plate main body 35a, so that when the first driving element 25 and the second driving element 35 are in linkage fit, the linkage mechanism 40 does not generate a component force parallel to the moving track of the first driving element 25 or the second driving element 35, and thus the fit between the first inclined wall 25c and the second inclined wall 35b is smoother, i.e. the transmission of the linkage mechanism 40 is smoother.

Further, the first pressing member 23 includes at least two first pressing pins 23a connected to the first driving member 25, the second pressing member 33 includes at least two second pressing pins 33a connected to the second driving member 35, the at least two first pressing pins 23a are arranged in a direction perpendicular to the sliding direction of the first sliding assembly 27, and the at least two second pressing pins 33a are arranged in a direction perpendicular to the sliding direction of the second sliding assembly 39.

In the present embodiment, the plurality of first hold-down pins 23a and the plurality of second hold-down pins 33a are provided, so that the first hold-down piece 23 and the second hold-down piece 33 can more stably hold the end portion of the circuit board 80. The plurality of first pressing pins 23a are in the same straight line perpendicular to the sliding direction of the first sliding member 27, so that the reverse acting force applied by the circuit board 80 to the first pressing pins 23a is parallel to the moving direction of the first driving member 25, and the pressing process of the first pressing member 23 is more stable. Similarly, the plurality of second pressing pins 33a are in the same straight line, and the straight line is perpendicular to the sliding direction of the second sliding assembly 39, so that the reverse acting force applied by the circuit board 80 to the second pressing pins 33a is parallel to the moving direction of the second driving member 35, and then the pressing process of the second pressing member 33 is more stable.

Further, the first pressing member 23 further includes a first mounting plate 23b connected to the first driving member 25 and mounting the at least two first pressing pins 23a, the first mounting plate 23b extends in a direction perpendicular to the sliding direction of the first sliding member 27, and the first mounting plate 23b is located on the upper end surface of the base 11. The second pressing member 33 further includes a second mounting plate 33b coupled to the second driving member 35 and mounting the at least two second pressing pins 33a, the second mounting plate 33b extending in a direction perpendicular to the sliding direction of the second sliding member 39, and the second mounting plate 33b being located on the upper end surface of the base 11. The arrangement of the first mounting plate 23b and the second mounting plate 33b further stabilizes the clamping process of the first pressing member 23 and the second pressing member 33.

Further, with continued reference to fig. 2, the mounting base 10 further includes an upper cover plate 13 covering the upper portions of the first driving member 25 and the second driving member 35. In this embodiment, the upper cover plate 13 includes a first movable groove 13a matching the first mounting plate 23b, a second movable groove 13b matching the second mounting plate 33b, and a positioning support portion 13c for carrying the circuit board. The setting of upper cover plate 13 can effectively shelter from first driving piece 25 and second driving piece 35, avoids dust or debris to get into first mounting groove 11a, second mounting groove 11b, ensures the normal removal of first driving piece 25 and second driving piece 35, and the upper cover plate epirelief is equipped with the location supporting part 13c that is used for bearing the circuit board, is convenient for get and puts the circuit board.

Further, the first limiting member 21 includes a first limiting pin 21a disposed on the upper cover plate 13 and corresponding to the first pressing pin 23a, and the second limiting member 31 includes a second limiting pin 31a disposed on the upper cover plate 13 and corresponding to the second pressing pin 33 a. In this embodiment, the plurality of first stopper pins 21a and the plurality of second stopper pins 31a are provided, so that the end portion of the circuit board 80 can be positioned more stably.

Further, with reference to fig. 1 and fig. 5, the clamping fixture further includes an operating element 50 connected to the first driving element 25, wherein the operating element 50 has a driving portion 51 hinged to the first driving element 25 and a hand-held portion 53 connected to the driving portion 51. In this embodiment, the operator drives the operating element 50 to drive the first driving element 25 to move, so as to release or clamp the clamping fixture. Specifically, the first driving member 25 is driven to displace by driving the handle 53 to rotate around the hinge of the driving portion 51.

Specifically, as shown in fig. 3 and 6, the driving portion 51 is provided with a hinge hole 51a or a hinge shaft extending in the vertical direction and hinge the first driving member 25, and has a first wall 51b facing away from one end of the holding portion 53 and a second wall 51c adjacent to the first wall 51 b. In this embodiment, the first wall 51b has a planar structure, and the second wall 51c has an arc-shaped structure. The driving portion 51 is provided with a hinge hole 51a, the first driving member 25 is also provided with a corresponding through hole, and a hinge shaft is disposed in the hinge hole 51a and the through hole to realize the hinge connection between the driving portion 51 and the first driving member 25.

Specifically, a first distance is provided between the first wall 51b and the axis of the hinge hole 51a or the hinge shaft, a second distance is provided between the second wall 51c and the axis of the hinge hole 51a or the hinge shaft, and the first distance and the second distance are different, the driving portion 51 rotates around the axis of the hinge hole 51a or the hinge shaft, and when the first wall 51b or the second wall 51c abuts against the side wall of the mounting seat 10, the distances between the hinge hole 51a or the hinge shaft and the side wall of the mounting seat 10 are different, so as to drive the first driving member 25 to move along the sliding direction of the first sliding assembly 27.

When the driving portion 51 rotates about the axis of the hinge hole 51a, the wall surface of the mounting seat 10 against which the driving portion 51 abuts is switched between the first wall 51b and the second wall 51c, and since the first distance and the second distance have different values, the rotational motion of the driving portion 51 can be converted into the linear motion of the first driver 25. That is, the first distance is different from the second distance, so that when the different wall abuts the sidewall of the mount 10, the hinge hole 51a is spaced apart from the sidewall of the mount 10, thereby pulling the first driving member 25 or releasing the first driving member 25.

In this embodiment, the first distance is smaller than the second distance. As shown in fig. 3, the driving portion 51 is driven by the handle portion 53 to rotate around the axis of the hinge hole 51a, when the first wall 51b of the driving portion 51 approaches or abuts against the mounting base 10, the hinge hole 51a approaches to a sidewall of the mounting base 10, the operating element 50 releases the first driving element 25, and releases the linkage acting force of the first driving element 25 on the second driving element 35, at this time, the second driving element 35 is driven by the second elastic element 37 to move toward the second limiting element 31, thereby clamping the circuit board in the left-right direction. Meanwhile, the first driving member 25 also drives the first pressing member 23 to move toward the first limiting member 21 under the driving of the first elastic member 29 or the linkage of the second driving member 35, so as to clamp the circuit board in the front-back direction, and thus the clamping fixture is in a clamping state. As shown in fig. 6, when the operating element 50 is rotated to make the second wall 51c of the driving portion 51 abut against the mounting base 10, the hinge hole 51a moves away from the sidewall of the mounting base 10, and pulls the first driving element 25 to move along with the hinge hole 51a, the first driving element 25 compresses the first elastic element 29 and drives the first pressing element 23 to move away from the first limiting element 21, so as to release the circuit board in the front-back direction. Meanwhile, the second driving member 35 moves under the linkage of the first driving member 25 to compress the second elastic member 37, and drives the second pressing member 33 to move away from the first limiting member 21, so that the circuit board is loosened in the left-right direction, and the clamping jig is in a loose state.

Of course, in other embodiments, the first distance may be greater than the second distance.

Further, the operating member 50 has at least two holding portions 53, and the two holding portions 53 are symmetrically disposed with respect to the hinge hole 51 a. In this embodiment, the whole operating element 50 is a symmetrical structure, and the operator can rotate the driving portion 51 in different directions to change the state of the clamping jig. The driving portion 51 has two second walls 51c, and the two second walls 51c are symmetrically disposed with respect to the hinge hole 51 a.

Further, with reference to fig. 3 and fig. 6, the clamping fixture includes at least two first clamping assemblies 20 and at least two second clamping assemblies 30 corresponding to the at least two first clamping assemblies 20 for simultaneously clamping and positioning at least two circuit boards 80, the first driving members 25 of the at least two first clamping assemblies 20 are sequentially arranged, and adjacent first driving members 25 are locked with each other.

In this embodiment, because the adjacent first driving members 25 are locked with each other, when a plurality of circuit boards 80 are clamped simultaneously, a user only needs to set a single operating member 50, thereby saving the manufacturing cost. Moreover, a user can clamp or release the plurality of circuit boards 80 on the clamping jig at the same time only by operating the single operating element 50, so that the production efficiency is improved.

Specifically, the adjacent first driving members 25 are mutually locked and configured, a limiting block 60 is arranged at one end of one of the adjacent first driving members 25, which is away from the operating member 50, a limiting groove 70 matched with the limiting block 60 is arranged on the other adjacent first driving member 25, a first state of mutual abutting joint and a second state of mutual disengaging joint are arranged between the limiting block 60 and the limiting groove 70, and when in the first state, the first driving members 35 of the at least two first clamping assemblies 20 move along with the operating member 50.

In this embodiment, as shown in fig. 6, the clamping fixture is in a detachable state, the position between the limiting block 60 and the limiting groove 70 is in a first state, the front end surface of the limiting block 60 abuts against the inner wall surface of the front side of the limiting groove 70, and the first driving member 25 located on the front side can drive the first driving member 25 located on the rear side to move forward, so that the two adjacent first clamping assemblies 20 can be detached through the single operating element 50. As shown in fig. 3, the clamping fixture is in a clamping state, the position between the position-limiting block 60 and the position-limiting groove 70 is in a second state, the front end surface of the position-limiting block 60 is separated from the inner wall surface of the front side of the position-limiting groove 70, and the front end surface of the position-limiting block 60 is not abutted to the inner wall surface of the rear side of the position-limiting groove 70, so that the first elastic member 29 of each first clamping assembly 20 only acts on the corresponding first driving member 25, but does not act on the first driving member 25 of the adjacent first clamping assembly 20, and the situation that the elastic force of the plurality of first elastic members 29 is applied to a single circuit board 80 together to cause damage to the circuit board 80 is avoided. That is, when the clamping fixture is in the clamping state, the plurality of first driving members 25 are respectively driven by the elastic force of the respective first elastic members 29 to clamp the respective circuit boards by the respective first pressing members 23. When the circuit board needs to be loosened, the operating element 50 at the front end only needs to be rotated to drive the first driving element 25 at the foremost end to move, and the first driving element 25 at the rear end can be linked under the action of the locking structure, so that the plurality of first driving elements 25 simultaneously drive the respective first pressing elements 23 to move away from the corresponding first limiting elements 21, and the corresponding circuit board is loosened in the front-back direction at the same time. Meanwhile, the plurality of second driving members 35 also drive the respective second pressing members 33 to move away from the corresponding second limiting members 31 under the linkage of the respective corresponding first driving members 25, so that the corresponding circuit boards are simultaneously released in the left-right direction. Only the operating part 50 at the most front end needs to be operated, the circuit boards can be loosened simultaneously, operation one by one is not needed, and efficiency is effectively improved.

It should be understood that although the present description refers to embodiments, not every embodiment contains only a single technical solution, and such description is for clarity only, and those skilled in the art should make the description as a whole, and the technical solutions in the embodiments can also be combined appropriately to form other embodiments understood by those skilled in the art.

The above-listed detailed description is only a specific description of a possible embodiment of the present invention, and they are not intended to limit the scope of the present invention, and equivalent embodiments or modifications made without departing from the technical spirit of the present invention should be included in the scope of the present invention.

Claims (13)

1. The utility model provides a circuit board clamping jig, its characterized in that includes the mount pad and sets up on the mount pad and be used for pressing from both sides tight first centre gripping subassembly and second centre gripping subassembly to a circuit board of treating centre gripping, first centre gripping subassembly includes relative first locating part and the first piece that compresses tightly that sets up, connects first compressing tightly and slide the first driving piece that sets up on the mount pad, second centre gripping subassembly includes relative second locating part and the second compressing tightly that sets up, connects the second and compresses tightly the piece and slide the second driving piece that sets up on the mount pad, clamping jig still includes the link gear that makes first driving piece and second driving piece linkage complex first driving piece is pressed from both sides first locating part direction when removing by external force drive first compressing tightly, and the second driving piece is linked and is driven the second and compress tightly and deviate from the second locating part direction and remove.

2. The apparatus of claim 1, wherein the linkage mechanism includes a first abutting surface disposed on the first driving member and a second abutting surface disposed on the second driving member and engaged with the first abutting surface, and the distance between the first abutting surface and the second pressing member gradually increases from the first limiting member toward the first pressing member, so that when the first driving member drives the first pressing member to move away from the first limiting member, the first abutting surface drives the second driving member to move away from the first driving member.

3. The circuit board clamping jig of claim 2, wherein projections of the first abutting surface and the second abutting surface on a horizontal plane are parallel to each other.

4. The apparatus of claim 3, wherein the mounting base includes a base, the second driving member is slidably disposed on the base, the second clamping assembly further includes a second elastic member abutting between the second driving member and the base, the second elastic member abuts against a side of the second driving member away from the linkage mechanism, when the external force is released to release the first driving member, the second elastic member drives the second driving member to drive the second pressing member to move toward the second limiting member, the first driving member is linked to drive the first pressing member to move toward the first limiting member.

5. The apparatus of claim 4, wherein the first clamping assembly further comprises a first sliding assembly disposed on the base and connected to the first driving member, the second clamping assembly further comprises a second sliding assembly disposed on the base and connected to the second driving member, and a sliding direction of the first sliding assembly is disposed at an angle to a sliding direction of the second sliding assembly.

6. The apparatus of claim 5, wherein the first clamping assembly further comprises a first elastic member abutting between the first driving member and the base, the first elastic member abutting against a side of the first driving member away from the first limiting member.

7. The apparatus as claimed in claim 6, wherein the second driving member includes a second plate body, the second plate body has a second inclined wall at an end portion of the second plate body adjacent to the first driving member, the first driving member includes a first plate body and a first plate protrusion connected to the first plate body adjacent to the second driving member, the first plate protrusion has a first inclined wall opposite to the second inclined wall, the first abutting surface is disposed on the first inclined wall, and the second abutting surface is disposed on the second inclined wall.

8. The circuit board clamping jig of claim 7, wherein the first driving member further comprises a first board mounting block connected to the first board main body, and a first mounting hole provided in the first board mounting block, the second driving member further comprises a second board mounting block connected to the second board main body, and a second mounting hole provided in the second board mounting block, the base is provided with a first mounting groove matched with the first driving member, and a second mounting groove matched with the second driving member, one end of the first elastic member is matched with the first mounting hole, the other end of the first elastic member abuts against the inner wall of the first mounting groove, one end of the second elastic member is matched with the second mounting hole, and the other end of the second elastic member abuts against the inner wall of the second mounting groove.

9. The apparatus of claim 7, wherein the sliding direction of the first sliding member and the sliding direction of the second sliding member are perpendicular to each other, the first pressing member includes at least two first pressing pins connected to the first driving member, the second pressing member includes at least two second pressing pins connected to the second driving member, the at least two first pressing pins are arranged in a direction perpendicular to the sliding direction of the first sliding member, and the at least two second pressing pins are arranged in a direction perpendicular to the sliding direction of the second sliding member.

10. The apparatus of claim 9, wherein the mounting base further comprises an upper cover plate covering the first driving member and the second driving member, the first limiting member comprises a first limiting pin disposed on the upper cover plate and corresponding to the first pressing pin, and the second limiting member comprises a second limiting pin disposed on the upper cover plate and corresponding to the second pressing pin.

11. The circuit board clamping jig of claim 5, further comprising an operating member connected to the first driving member, wherein the operating member has a driving portion hinged to the first driving member and a holding portion connected to the driving portion, the driving portion is provided with a hinge hole or a hinge shaft extending in a vertical direction and hinged to the first driving member, the driving portion has a first wall facing away from one end of the holding portion and a second wall adjacent to the first wall, a first distance is provided between the first wall and an axis of the hinge hole or the hinge shaft, a second distance is provided between the second wall and an axis of the hinge hole or the hinge shaft, the first distance and the second distance are different, the driving portion rotates around the axis of the hinge hole or the hinge shaft, and the distances between the hinge hole or the hinge shaft and the side wall of the mounting seat are different when the first wall or the second wall abuts against the side wall of the mounting seat respectively, so as to drive the first driving member to move along the sliding direction of the first sliding assembly.

12. The apparatus as claimed in claim 11, wherein the clamping fixture includes at least two first clamping assemblies and at least two second clamping assemblies corresponding to the at least two first clamping assemblies for clamping and positioning at least two circuit boards simultaneously, the first driving members of the at least two first clamping assemblies are arranged in sequence, and adjacent first driving members are locked to each other.

13. The circuit board clamping jig according to claim 12, wherein the adjacent first driving members are mutually locked and configured, a limiting block is disposed at one end of one of the adjacent first driving members, which is away from the operating member, a limiting groove matched with the limiting block is disposed on the other of the adjacent first driving members, a first state in which the limiting blocks are mutually abutted and a second state in which the limiting blocks are separated from the abutment are provided between the limiting blocks and the limiting grooves, and the first driving members of the at least two first clamping assemblies can move along with the operating member in the first state.

Images