CN219581885U

CN219581885U - Flexible anti-abrasion PCB welding fixture

Info

Publication number: CN219581885U
Application number: CN202320679572.1U
Authority: CN
Inventors: 张剑; 李志坤; 商精燕; 张永; 张海明; 王宁; 靳善恩; 邓明根
Original assignee: Beijing Haina Lean Technology Co ltd
Current assignee: Beijing Haina Lean Technology Co ltd
Priority date: 2023-03-31
Filing date: 2023-03-31
Publication date: 2023-08-25
Anticipated expiration: 2033-03-31

Abstract

The utility model discloses a flexible anti-abrasion PCB welding fixture which comprises two clamping assemblies and a first driving mechanism, wherein each clamping assembly comprises a shell, a first cavity, a second cavity and a plurality of third cavities which are communicated are arranged in the shell, a push block, a pressure spring and a first sealing plug are arranged in the second cavity, a second sealing plug is arranged in the third cavity in a sliding sealing manner, a clamping rod is fixedly arranged on the second sealing plug, and one end of each clamping rod extends out of the shell. The clamping rod can not rigidly contact with the PCB when clamping the PCB, can move towards the inner side of the third cavity through compression of the pressure spring, achieves the function of flexibly clamping the PCB, avoids side damage of the PCB, can adjust the clamping rigidity degree of the clamping rod, is suitable for requirements of the PCB on clamping force and clamping strength in different environments, can clamp a plurality of PCBs, is convenient for clamping irregularly-shaped PCBs with irregular edges, and has strong adaptability.

Description

Flexible anti-abrasion PCB welding fixture

Technical Field

The utility model relates to the technical field of tool clamps, in particular to a flexible anti-abrasion PCB welding tool clamp.

Background

And the PCB welding clamp is required to be used for clamping during PCB welding. The patent of the publication number CN217096375U is entitled to describe a PCB welding fixture, which supports and fixes the PCB in the horizontal direction through a supporting component, and the fixture component is used for fixing the PCB in the vertical direction, and supports and fixes the PCB through the supporting component and the fixture component.

The mode that above-mentioned patent anchor clamps subassembly was fixed to the PCB board is that the rigidity centre gripping is fixed, and fixed dynamics is difficult for controlling, and the dynamics can lead to the fact wearing and tearing to the PCB board edge when too big, influences the quality of PCB board after the welding.

Disclosure of Invention

The present utility model provides a solution to the problems of the prior art.

The technical problems solved by the utility model are realized by adopting the following technical scheme:

the utility model provides a flexible abrasionproof decreases PCB board welding frock clamp, includes two clamping components and drives two clamping components in opposite directions or the first actuating mechanism of back of body motion in order to centre gripping or to lift the PCB board, the clamping components includes the casing, be equipped with first cavity, second cavity and a plurality of third cavity that are linked together in the casing, the length direction of first cavity is unanimous with the length direction of casing, second cavity and third cavity are located first cavity both sides respectively, be equipped with ejector pad in the second cavity, pressure spring and first sealing plug, the other end is connected with the ejector pad to pressure spring one end, first sealing plug and second cavity sliding seal connection, install the second actuating mechanism that is used for driving the ejector pad at second cavity internal activity on the casing, the third cavity evenly sets up along casing length direction, sliding seal installs the second sealing plug in the third cavity, first cavity, second cavity and third cavity are interior and lie in first sealing plug, annotate between the second sealing plug has the grip lever, second sealing plug fixed mounting has the grip lever one end casing.

Preferably, the first driving mechanism comprises a double-rotation screw rod, a polished rod, a first nut, a sliding sleeve, a bearing seat and supporting legs, wherein the first nut and the sliding sleeve are respectively arranged on two side walls of the shell along the length direction of the shell, the double-rotation screw rod is rotatably arranged on the bearing seat, two threaded sections of the double-rotation screw rod with different rotation directions are respectively in threaded connection with the two first nuts, the two ends of the polished rod are fixedly connected with the supporting legs, and the polished rod passes through the sliding sleeve and is in sliding connection with the sliding sleeve

Preferably, a first handle is mounted at one end of the double-rotation screw.

Preferably, the second driving mechanism comprises a second nut and an adjusting screw, the second nut is fixedly arranged on the outer wall of the second cavity, the adjusting screw is in threaded connection with the second nut, and one end of the adjusting screw extends into the second cavity and is in rotary connection with the pushing block.

Preferably, a second handle is mounted at the end of the adjusting screw remote from the housing.

Preferably, a limiting ring is fixed on the clamping rod and is used for being in contact with the outer wall of the shell so as to limit the second sealing plug to be separated from the third chamber.

Preferably, a clamping groove is formed in one end, extending out of the shell, of the clamping rod, and the section of the clamping groove is L-shaped.

Preferably, the device further comprises a bottom plate, and the bracket and the bearing seat are fixedly arranged on the bottom plate.

The utility model has the beneficial effects that:

1. the clamping rod can not rigidly contact the PCB when clamping the PCB, and can move towards the inner side of the third cavity through compression of the pressure spring, so that the function of flexibly clamping the PCB is realized, and the side of the PCB is prevented from being damaged;

2. the compression degree of the pressure spring can be adjusted through the second driving mechanism, so that the clamping rigidity degree of the clamping rod is adjusted, and the requirements of the PCB on the clamping force and the clamping strength in different environments are met;

3. the clamping rods are arranged in a plurality of ways, a plurality of PCBs can be clamped, the specifications of the PCBs can be slightly different, the simultaneous clamping is not affected, irregular PCBs at the edges can be clamped conveniently, and the adaptability is high.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained from them without inventive faculty for a person skilled in the art.

FIG. 1 is a perspective view of the present utility model;

FIG. 2 is a front view of the present utility model;

FIG. 3 is a cross-sectional view taken along line B-B in FIG. 2;

FIG. 4 is a top view of the present utility model;

FIG. 5 is a cross-sectional view taken along line C-C of FIG. 4;

fig. 6 is a partial schematic view of the present utility model for clamping a PCB board;

in the figure, 1, a clamping assembly; 11. a housing; 111. a first chamber; 112. a second chamber; 113. a third chamber; 12. a pushing block; 13. a pressure spring; 14. a first sealing plug; 15. a second driving mechanism; 151. a second nut; 152. adjusting a screw; 153. a second handle; 16. a second sealing plug; 17. a clamping rod; 171. a clamping groove; 18. a limiting ring; 2. a first driving mechanism; 21. a double-flighted screw; 22. a polish rod; 23. a first nut; 24. a sliding sleeve; 25. a bearing seat; 26. a support leg; 27. a first handle; 3. a bottom plate.

Detailed Description

The utility model is further described with reference to the following detailed drawings in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the implementation of the utility model easy to understand.

Referring to fig. 1-6, a flexible anti-wear PCB board welding fixture comprises two clamping assemblies 1 and a first driving mechanism 2 for driving the two clamping assemblies 1 to move oppositely or reversely to clamp or disassemble a PCB board, the clamping assemblies 1 comprise a housing 11, the housing 11 is of a long and narrow cuboid structure, a first chamber 111, a second chamber 112 and a plurality of third chambers 113 which are communicated are arranged in the housing 11, the length direction of the first chamber 111 is consistent with the length direction of the housing 11, the second chamber 112 and the third chambers 113 are respectively positioned at two sides of the first chamber 111, a push block 12, a pressure spring 13 and a first sealing plug 14 are arranged in the second chamber 112, one end of the pressure spring 13 is connected with the push block 12, the other end of the pressure spring 14 is connected with the first sealing plug 14, the first sealing plug 14 is connected with the second chamber 112 in a sliding sealing manner, a second driving mechanism 15 for driving the push block 12 to move in the second chamber 112 is arranged on the housing 11, the third chambers 113 are uniformly arranged along the length direction of the housing 11, the third chambers 113 are slidably sealed with a second chamber 16, the first chambers 111, the second chambers 111, the third chambers 113 and the third chambers 113 are respectively positioned in the length direction of the housing 11, the second chambers and the second chambers 113 are respectively provided with a second sealing plug 16, the second sealing plug 17 is fixedly arranged in the second chambers and the second chambers 16 are respectively, and the second sealing plug 17 are respectively arranged at one ends of the second sealing plug 17, and the second sealing plug 17 is fixedly arranged. The pressure spring 13 pushes the first sealing plug 14, so that the first sealing plug 14 extrudes hydraulic oil, the hydraulic oil pushes the second sealing plug 16 to move, when the clamping rod 17 clamps the PCB, the clamping rod 17 cannot rigidly contact the PCB, the clamping rod can slightly move towards the inner side of the third cavity, the pressure spring 13 compresses, buffering is realized, and the side of the PCB is prevented from being damaged; by adjusting the position of the push block 12 by the second driving mechanism 15, the compression degree of the compression spring 13 and thus the clamping rigidity degree of the clamping rod 17 can be adjusted. In addition, the clamping rods 17 are provided in plurality, so that a plurality of PCBs can be clamped, and the clamping rods 17 can move to the inner side of the third chamber 113 under the stress, so that the specifications of the PCBs to be clamped can be slightly different, and the simultaneous clamping is not influenced.

In a preferred embodiment, the first driving mechanism 2 includes a double-rotation-direction screw 21, a polish rod 22, a first nut 23, a sliding sleeve 24, a bearing seat 25 and a supporting leg 26, wherein the first nut 23 and the sliding sleeve 24 are respectively installed on two side walls of the shell 11 along the length direction, the double-rotation-direction screw 21 is rotatably installed on the bearing seat 25, the double-rotation-direction screw 21 is a screw with two sections of opposite rotation threads, two sections of threads of the double-rotation-direction screw 21 with different rotation directions are respectively in threaded connection with the two first nuts 23, two ends of the polish rod 22 are fixedly connected with the supporting leg 26, and the polish rod 22 passes through the sliding sleeve 24 to be in sliding connection with the sliding sleeve 24. The polish rod 22 and the sliding sleeve 24 play a role in guiding and supporting, so that the double-rotation-direction screw rod 21 can drive the first nut 23 and the shell 11 to move linearly. When the double-handed screw 21 rotates, the two first nuts 23 are mounted on the two threaded sections of different directions of rotation, so that the two first nuts can synchronously move towards each other or back to each other. When the two first nuts 23 move in opposite directions synchronously, the two housings 11 move in opposite directions, the clamping rods 17 can clamp the PCB, and the PCB is detached otherwise.

In a preferred embodiment, to facilitate rotation of the double-flighted screw 21, a first handle 27 is mounted to one end of the double-flighted screw 21. By rotating the first handle 27, the double-rotation screw 21 can be conveniently driven to rotate.

In a preferred embodiment, the second driving mechanism 15 includes a second nut 151 and an adjusting screw 152, the second nut 151 is fixedly mounted on the outer wall of the second chamber 112, the adjusting screw 152 is in threaded connection with the second nut 151, and one end of the adjusting screw 152 extends into the second chamber 112 and is in rotational connection with the push block 12. When the adjusting screw 152 rotates, the adjusting screw can move into the second chamber 112 or move out of the shell 11 under the action of the second nut 151, when the adjusting screw 152 moves into the second chamber 112, the pushing plate, the pressure spring 13 and the first sealing plug 14 are driven to move, the first sealing plug 14 extrudes hydraulic oil in the second chamber 112 to enter the first chamber 111 and the third chamber 113, and the hydraulic oil pushes the second sealing plugs 16 to move so that the clamping rods 17 move out of the shell 11; when the second sealing plug 16 is abutted against the shell 11, the second sealing plug 16 cannot move continuously, and the first sealing plug 14 cannot move continuously due to incompressible shape of hydraulic oil, so that the pressure spring 13 can deform in a compression mode, and the clamping force of the clamping rod 17 is adjusted; the greater the compression degree of the compression spring 13, the greater the pushing force to the clamping rod 17, the less likely the clamping rod 17 is pressed into the housing 11, and the lower the flexibility of clamping the PCB board, and conversely the higher the flexibility.

In a preferred embodiment, to facilitate rotation of the adjustment screw 152, a second handle 153 is mounted at the end of the adjustment screw 152 distal from the housing 11. By rotating the second handle 153, the adjustment screw 152 can be conveniently rotated.

In a preferred embodiment, to prevent the clamping rod 17 from retracting into the third chamber 113, a stop ring 18 is fixed to the clamping rod 17, and the stop ring 18 is used to contact the outer wall of the housing 11 to limit the second sealing plug 16 from exiting the third chamber 113.

In a preferred embodiment, the clamping rod 17 is provided with a clamping groove 171 at one end extending out of the housing 11, and the clamping groove 171 has an L-shaped cross section. The bottom surface of the clamping groove 171 may be convenient for supporting the PCB, and the side surface of the clamping groove 171 may be convenient for clamping the PCB. In order to avoid the rotation of the clamping rod 17 relative to the third chamber 113, the cross section of the third chamber 113 may be rectangular or other non-circular shape, and the second sealing plug 16 is adapted to the third chamber 113, so as to avoid the rotation of the second sealing plug 16 relative to the third chamber 113, and then the clamping rod 17 is fixedly connected with the second sealing plug 16 and cannot rotate relative to the third chamber 113, so that the clamping groove 171 is kept upwards all the time, and the PCB board is convenient to be clamped.

In a preferred embodiment, to make the present clamp more stable, a base plate 3 is further provided, and the bracket and the bearing seat 25 are fixedly mounted on the base plate 3. Through setting up bottom plate 3 for this device bulk connection is more stable, is difficult for overturning, slides.

When the double-rotation type PCB clamping device is used, the first handle 27 is rotated, the distance between the two clamping assemblies 1 is adjusted to be matched with the specification of the PCB, specifically, the first handle 27 drives the double-rotation type screw 21 to rotate, and under the guiding and supporting effects of the polish rod 22 and the sliding sleeve 24, the first nut 23 converts the rotation motion of the double-rotation type screw 21 into linear motion and drives the shell 11 to move in opposite directions or in opposite directions;

placing the PCB board between the clamping rods 17 of the two clamping assemblies 1 and on the clamping part, and rotating the first handle 27 again to drive the two clamping assemblies 1 to move in opposite directions, wherein the clamping rods 17 of the two clamping assemblies 1 clamp the PCB board; when the clamping rods 17 clamp the PCB, the clamping rods 17 can axially move towards the inner side of the shell 11 through the elastic compressible characteristic of the pressure springs 13, so that the flexible clamping of the PCB is realized, the abrasion of the edges of the PCB is avoided, and the hydraulic oil pressure in each third cavity 113 is equal due to the arrangement of the hydraulic oil, so that the clamping rods 17 extend out of the shell 11 to be different in length, and as shown in fig. 6, the clamping rods can be matched with the edges of the PCB with different lengths, and are convenient for clamping irregularly-shaped PCB with irregular edges.

The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a flexible abrasionproof decreases PCB board welding frock clamp, includes two clamping components (1) and drives two clamping components (1) in opposite directions or first actuating mechanism (2) of moving in order to centre gripping or lift down the PCB board in opposite directions, a serial communication port, clamping components (1) include casing (11), be equipped with first cavity (111), second cavity (112) and a plurality of third cavity (113) that are linked together in casing (11), the length direction of first cavity (111) is unanimous with the length direction of casing (11), second cavity (112) and third cavity (113) are located first cavity (111) both sides respectively, be equipped with ejector pad (12), pressure spring (13) and first sealing plug (14) in second cavity (112), pressure spring (13) one end is connected the other end with ejector pad (12) and is connected with first sealing plug (14), install second actuating mechanism (15) that are used for driving ejector pad (12) and move in second cavity (112) on casing (11), third cavity (113) are evenly arranged in first cavity (16), second cavity (113) are evenly arranged along first cavity (113) length direction, first cavity (16) are sealed up in second cavity (113) The second chamber (112) and the third chamber (113) are internally provided with hydraulic oil between the first sealing plug (14) and the second sealing plug (16), the second sealing plug (16) is fixedly provided with a clamping rod (17), and one end of the clamping rod (17) extends out of the shell (11).

2. The flexible anti-abrasion PCB welding fixture according to claim 1, wherein the first driving mechanism (2) comprises a double-rotation-direction screw rod (21), a polished rod (22), a first nut (23), a sliding sleeve (24), a bearing seat (25) and supporting legs (26), the first nut (23) and the sliding sleeve (24) are respectively arranged on two side walls of the shell (11) along the length direction of the shell, the double-rotation-direction screw rod (21) is rotatably arranged on the bearing seat (25), two threaded sections of the double-rotation-direction screw rod (21) with different rotation directions are respectively in threaded connection with the two first nuts (23), two ends of the polished rod (22) are fixedly connected with the supporting legs (26), and the polished rod (22) penetrates through the sliding sleeve (24) to be in sliding connection with the sliding sleeve (24).

3. The flexible wear-resistant PCB board welding fixture according to claim 2, wherein a first handle (27) is mounted at one end of the double-handed screw (21).

4. The flexible anti-abrasion PCB welding fixture according to claim 1, wherein the second driving mechanism (15) comprises a second nut (151) and an adjusting screw (152), the second nut (151) is fixedly arranged on the outer wall of the second chamber (112), the adjusting screw (152) is in threaded connection with the second nut (151), and one end of the adjusting screw (152) extends into the second chamber (112) and is in rotary connection with the pushing block (12).

5. The flexible wear-resistant PCB board welding fixture of claim 4 wherein a second handle (153) is mounted to an end of the adjusting screw (152) remote from the housing (11).

6. The flexible anti-abrasion PCB welding fixture according to claim 1, wherein a limiting ring (18) is fixed on the clamping rod (17), and the limiting ring (18) is used for being in contact with the outer wall of the shell (11) so as to limit the second sealing plug (16) to be separated from the third chamber (113).

7. The flexible anti-abrasion PCB welding fixture according to claim 1, wherein a clamping groove (171) is formed in one end, extending out of the shell (11), of the clamping rod (17), and the cross section of the clamping groove (171) is L-shaped.

8. The flexible wear-resistant PCB board welding fixture of any of claims 1 to 7, further comprising a base plate (3), wherein the bracket and the bearing housing (25) are fixedly mounted on the base plate (3).