CN118354530A - Clamping processing device for multilayer printed circuit board - Google Patents

Abstract

The invention discloses a clamping and processing device for a multilayer printed circuit board, which comprises a drilling main body assembly, a clamping force adjusting mechanism, a movable clamping structure and a fulcrum adjusting structure, wherein the clamping force adjusting mechanism is arranged on the drilling main body assembly. The invention belongs to the field of multilayer printed circuit board processing, and particularly relates to a clamping processing device for a multilayer printed circuit board; according to the invention, the clamping force applied to the multilayer printed circuit board can be regulated by arranging the clamping force regulating mechanism and the fulcrum regulating structure, so that the damage to the multilayer printed circuit board caused by excessive clamping force is avoided, the multilayer printed circuit board can be ensured not to move in position during drilling operation, the accuracy of the drilling position is ensured, and the problems that the clamping force provided by the conventional drilling device cannot be regulated, the thickness of the multilayer printed circuit board is smaller, and the multilayer printed circuit board is easy to damage during clamping the multilayer printed circuit board are effectively solved.

Description

Clamping processing device for multilayer printed circuit board

Technical Field

The invention belongs to the technical field of multilayer printed circuit board processing, and particularly relates to a clamping processing device for a multilayer printed circuit board.

Background

With the continuous development of electronic technology, especially the wide application of integrated circuits, the requirement on circuit boards is higher and higher, and the multilayer printed circuit board technology is generated, so that more components and circuits can be arranged in a limited space by superposing a plurality of conductive layers on a single substrate, thus greatly improving the integration level and performance of the circuit board, and the multilayer printed circuit board has many advantages, such as high integration level, good electromagnetic compatibility, high reliability and stability, and the like, which lead the multilayer printed circuit board to be widely applied in electronic equipment, especially in the fields of communication, computers, consumer electronics, medical equipment and the like, and the circuits among different layers are required to be connected through via holes, plug-in holes and the like in the multilayer printed circuit board, so that drilling operation is required to be performed on the multilayer printed circuit board.

When carrying out drilling operation to the multilayer printed wiring board, need carry out the centre gripping to the multilayer printed wiring board to guarantee that the deviation can not appear in drilling position, but the clamping force that current drilling equipment provided can't adjust, and the thickness of multilayer printed wiring board is less, leads to causing the multilayer printed wiring board to appear damaging when carrying out the centre gripping to the multilayer printed wiring board easily.

Disclosure of Invention

In order to overcome the defects of the prior art, the clamping processing device for the multilayer printed circuit board provided by the invention can adjust the clamping force applied to the multilayer printed circuit board by arranging the clamping force adjusting mechanism and the fulcrum adjusting structure, so that the damage to the multilayer printed circuit board caused by excessive clamping force is avoided, the multilayer printed circuit board can be ensured not to move in position during drilling operation, the accuracy of drilling position is ensured, the problem that the clamping force provided by the existing drilling device in the current market cannot be adjusted, and the multilayer printed circuit board is small in thickness, so that the multilayer printed circuit board is easy to damage during clamping is solved.

The technical scheme adopted by the invention is as follows: the invention provides a clamping processing device of a multilayer printed circuit board, which comprises a drilling main body assembly, a clamping force adjusting mechanism, a movable clamping structure and a fulcrum adjusting structure, wherein the clamping force adjusting mechanism is arranged on the drilling main body assembly, the movable clamping structure is arranged on the clamping force adjusting mechanism, the fulcrum adjusting structure is arranged on one side of the drilling main body assembly, and the fulcrum adjusting structure is connected with the clamping force adjusting mechanism.

Further, the clamping force adjusting mechanism comprises a driving structure and a driven structure, the driving structure comprises a fixed plate, a clamping cylinder, a rotating support, a connecting plate, a fixed rod, a movable rod and a butt joint rod, the fixed plate is fixedly connected with a drilling main body assembly, the clamping cylinder is fixedly connected onto the fixed plate, the rotating support is rotationally connected with the clamping cylinder, the connecting plate is fixedly connected with the rotating support, the fixed rod is fixedly connected between the connecting plates, the output end of the clamping cylinder is rotationally connected with the fixed rod, a connecting groove is formed in the rotating support, the movable rod is slidably connected into the connecting groove, a sliding groove is formed in the upper surface of the fixed plate, the movable rod is slidably connected into the sliding groove, a limit groove is formed in the side face of the fixed plate, and the limit groove is communicated with the sliding groove.

Further, driven structure includes fixed connection block one, fixed track, sliding plate, fixed connection block two, drive plate, horizontal rack, rotation gear and drive plectrum, fixed connection block one fixed connection is on rotating the support, fixed track fixed connection fixed plate, sliding plate sliding connection fixed track, fixed connection block two fixed connection is on the sliding plate, the one end articulated fixed connection block one of drive plate, the other end articulated fixed connection block two of drive plate, horizontal rack fixed connection block two, spacing rotatory groove has been seted up to the upper surface of fixed plate, rotate gear rotation and connect in spacing rotatory inslot, drive plectrum fixed connection is in the internal surface of rotation gear, makes rotation gear can drive the axis of rotation and rotate.

Further, the movable clamping structure comprises a rotating shaft, a spiral spring, butt joint pieces, a driving turntable, a discharging platform, a movable clamping block and a rubber cushion, wherein an installation groove is formed in the upper surface of the fixing plate, the rotating shaft is rotationally connected with the fixing plate, one end of the spiral spring is fixedly connected with the rotating shaft, the other end of the spiral spring is fixedly connected with the fixing plate, the butt joint pieces are fixedly connected with the rotating shaft, the driving turntable is fixedly connected with the rotating shaft, a chute is formed in the driving turntable, the discharging platform is fixedly connected with the fixing plate, a movable groove is formed in the discharging platform, the movable clamping block is slidably connected in the chute, and the rubber cushion is fixedly connected with the inner surface of the movable clamping block, so that the device can perform preliminary clamping on a multilayer printed circuit board needing to be processed.

Further, the chute is evenly arranged on the driving turntable, the movable groove is evenly arranged on the discharging platform, the chute is connected with the driving turntable in a penetrating manner, and the movable groove is connected with the discharging platform in a penetrating manner.

Further, the fulcrum adjusting structure comprises a driving pulley, a driven pulley, a rotating shaft, a driving bevel gear, a driven bevel gear, a first rotating rod, a driving gear, a driven gear, a second rotating rod, a cam and a sliding rod, wherein the driving pulley is arranged on the side surface of the drilling main body assembly, the driven pulley is arranged on the drilling main body assembly, a driving belt is connected between the driving pulley and the driven pulley, the rotating shaft is fixedly connected with the driven pulley in a penetrating manner, the driving bevel gear is fixedly connected with one end of the rotating shaft far away from the driven pulley, the driven bevel gear is meshed with the driving bevel gear, the first rotating rod is fixedly connected with the driven bevel gear, the first rotating rod is rotationally connected with the drilling main body assembly, the second cam is fixedly connected with the rotating rod, and the sliding rod is hinged with the cam, so that the force of the rotating support close to one end of the driving plate can be amplified.

Further, the fulcrum adjusting structure further comprises a first supporting plate, a connecting shaft, a second supporting plate, a third supporting plate and fixed teeth, the first supporting plate is fixedly connected with the drilling main body assembly, the connecting shaft is fixed and penetrates through the first supporting plate, the driving belt pulley is rotationally connected with the connecting shaft, the second supporting plate is fixedly connected with the drilling main body assembly, the rotating shaft penetrates through and rotates the second supporting plate, the fixed teeth are uniformly distributed on the outer surface of the driving belt pulley, the fixed teeth are fixedly connected with the driving belt pulley, and the fixed teeth are meshed and connected with the vertical racks.

Further, drilling main part subassembly includes base, riser, lift cylinder, lifter plate, linking bridge, vertical rack and drilling machine, riser fixed connection is on the base, the lift spout has been seted up on the riser, logical groove has been seted up to the side of riser, lift cylinder fixed connection riser, lifter plate sliding connection is in the lift spout, lifter plate fixed connection lift cylinder's output, linking bridge fixed connection lifter plate, linking bridge sliding connection is in logical inslot, vertical rack fixed connection linking bridge, drilling machine fixed connection lifter plate.

Further, one end of the sliding rod far away from the second rotating rod is hinged with a butt joint rod, and the fixed teeth are meshed with the vertical racks.

Further, the horizontal racks are meshed with the rotating gears, and the distance between the first support plates is larger than the width of the vertical racks.

The beneficial effects obtained by the invention by adopting the structure are as follows:

(1) In order to solve the problems that the clamping force provided by the existing drilling device cannot be adjusted, and the multilayer printed circuit board is easy to damage when being clamped due to the small thickness of the multilayer printed circuit board, the clamping force adjusting mechanism and the fulcrum adjusting structure are arranged, so that the clamping force applied to the multilayer printed circuit board can be adjusted, the damage to the multilayer printed circuit board caused by excessive clamping force is avoided, the position movement of the multilayer printed circuit board can be avoided when the drilling operation is carried out, and the accuracy of the drilling position is ensured;

(2) When the multilayer printed circuit board is required to be clamped, the air cylinder can drive the horizontal rack to displace through the rotating support, and then the horizontal rack drives the rotating gear to rotate, so that the movable clamping block can clamp and fix the multilayer printed circuit board, and the position deviation of the multilayer printed circuit board in the drilling process is avoided;

(3) In addition, through setting up the fulcrum and adjusting the structure, can drive the movable rod and carry on the displacement along boring the sliding tray and connecting slot in the course that the lifter plate descends, make the interval between one end of movable rod and rotating bracket close to the drive plate progressively reduce, and then make the clamping force that the movable clamp splice exerts the multilayer printed-wiring board progressively increase, avoid too big clamping force to cause the destruction to the multilayer printed-wiring board;

(4) The surface of axis of rotation is provided with the butt joint piece, and the internal surface of rotation gear is provided with the drive plectrum, and when the multilayer printed wiring board size that needs the drilling was great, the interval between drive plectrum and the butt joint piece reduces greatly, makes the clamping force that the multilayer printed wiring board was to the improvement that movable clamp splice can be faster, and when the multilayer printed wiring board size that needs the drilling was less, the interval between drive plectrum and the butt joint piece reduces less, and the time that the rotation gear needs idle running is longer, avoids the clamping force of movable clamp splice too big and causes the destruction to the multilayer printed wiring board of less size.

Drawings

Fig. 1 is a schematic perspective view of a clamping and processing device for a multilayer printed circuit board according to the present invention;

Fig. 2 is an exploded perspective view of a clamping device for a multilayer printed circuit board according to the present invention;

FIG. 3 is a schematic perspective view of a clamping force adjustment mechanism;

FIG. 4 is an enlarged schematic perspective view of the structure A in FIG. 3;

FIG. 5 is a schematic cross-sectional perspective view of a clamping force adjustment mechanism;

fig. 6 is a schematic side view of a device for clamping and processing a multilayer printed circuit board according to the present invention;

FIG. 7 is an enlarged schematic perspective view of the structure shown at B in FIG. 6;

FIG. 8 is an exploded perspective view of the movable clamp structure;

FIG. 9 is a schematic perspective view of a partial cross-sectional structure of a fixing plate;

FIG. 10 is a schematic perspective view of a drill body assembly;

fig. 11 is a schematic perspective view of a drilling body assembly.

1, A drilling main body assembly; 101. a base; 102. a vertical plate; 103. lifting sliding grooves; 104. a through groove; 105. a lifting cylinder; 106. a lifting plate; 107. a connecting bracket; 108. a vertical rack; 109. a drilling machine; 2. a clamping force adjusting mechanism; 201. a fixing plate; 202. a clamping cylinder; 203. rotating the bracket; 204. a connecting plate; 205. a fixed rod; 206. a connecting groove; 207. a movable rod; 208. a sliding groove; 209. a limit groove; 210. a butt joint rod; 211. a first fixed connecting block; 212. a fixed rail; 213. a sliding plate; 214. a second fixed connecting block; 215. a drive plate; 216. a horizontal rack; 217. a limit rotating groove; 218. rotating the gear; 219. driving the poking plate; 3. a movable clamping structure; 301. a mounting groove; 302. a rotating shaft; 303. a spiral spring; 304. butt joint pieces; 305. driving a turntable; 306. a chute; 307. a discharging platform; 308. a moving groove; 309. a movable clamping block; 310. a rubber cushion; 4. a fulcrum adjusting structure; 401. a drive pulley; 402. a driven pulley; 403. a drive belt; 404. a rotation shaft; 405. driving a bevel gear; 406. a driven bevel gear; 407. rotating the first rod; 408. a drive gear; 409. a driven gear; 410. a second rotating rod; 411. a cam; 412. a slide bar; 413. a first supporting plate; 414. a connecting shaft; 415. a second supporting plate; 416. a third supporting plate; 417. and fixing the teeth.

The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention; all other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

In the description of the present invention, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate orientation or positional relationships based on those shown in the drawings, merely to facilitate description of the invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.

As shown in fig. 1-11, the invention provides a clamping processing device for a multilayer printed circuit board, which comprises a drilling main body assembly 1, a clamping force adjusting mechanism 2, a movable clamping structure 3 and a supporting point adjusting structure 4, wherein the clamping force adjusting mechanism 2 is arranged on the drilling main body assembly 1, the movable clamping structure 3 is arranged on the clamping force adjusting mechanism 2, the supporting point adjusting structure 4 is arranged on one side of the drilling main body assembly 1, and the supporting point adjusting structure 4 is connected with the clamping force adjusting mechanism 2.

The clamping force adjusting mechanism 2 comprises a driving structure and a driven structure, the driving structure comprises a fixed plate 201, a clamping cylinder 202, a rotating support 203, a connecting plate 204, a fixed rod 205, a movable rod 207 and a butt joint rod 210, the fixed plate 201 is fixedly connected with the drilling main body assembly 1, the clamping cylinder 202 is fixedly connected to the fixed plate 201, the rotating support 203 is rotationally connected with the clamping cylinder 202, the connecting plate 204 is fixedly connected with the rotating support 203, the fixed rod 205 is fixedly connected between the connecting plates 204, the output end of the clamping cylinder 202 is rotationally connected with the fixed rod 205, the angle change of the rotating support 203 is not limited by the clamping cylinder 202, a connecting groove 206 is formed in the rotating support 203, the movable rod 207 is slidably connected in the connecting groove 206, a sliding groove 208 is formed in the upper surface of the fixed plate 201, the movable rod 207 is slidably connected in the sliding groove 208, a limit groove 209 is communicated with the sliding groove 208, the butt joint rod 210 can be connected with the movable rod 207, the butt joint rod 210 is fixedly connected with the movable rod 207, the butt joint rod 210 is slidably connected with the limit groove 209, and the butt joint rod 210 can drive the movable rod 207 to displace.

In addition, the driven structure includes a first fixed connection block 211, a fixed track 212, a sliding plate 213, a second fixed connection block 214, a transmission plate 215, a horizontal rack 216, a rotating gear 218 and a driving pulling piece 219, wherein the first fixed connection block 211 is fixedly connected to the rotating support 203, the fixed track 212 is fixedly connected with the fixed plate 201, the sliding plate 213 is slidably connected with the fixed track 212, the second fixed connection block 214 is fixedly connected to the sliding plate 213, one end of the transmission plate 215 is hinged with the first fixed connection block 211, the other end of the transmission plate 215 is hinged with the second fixed connection block 214, so that the rotating support 203 can drive the sliding plate 213 to displace, the horizontal rack 216 is fixedly connected with the second fixed connection block 214, a limiting rotating groove 217 is formed in the upper surface of the fixed plate 201, the rotating gear 218 is rotatably connected in the limiting rotating groove 217, the rotating gear 218 cannot be separated from the fixed plate 201, and the driving pulling piece 219 is fixedly connected to the inner surface of the rotating gear 218.

The movable clamping structure 3 comprises a rotating shaft 302, a spiral spring 303, a butt joint piece 304, a driving turntable 305, a discharging platform 307, a movable clamping block 309 and a rubber cushion 310, wherein the upper surface of the fixed plate 201 is provided with a mounting groove 301, the rotating shaft 302 is rotationally connected with the fixed plate 201, one end of the spiral spring 303 is fixedly connected with the rotating shaft 302, the other end of the spiral spring 303 is fixedly connected with the fixed plate 201, the rotating shaft 302 can automatically reset under the action of the spiral spring 303, the butt joint piece 304 is fixedly connected with the rotating shaft 302, the driving turntable 305 is provided with a chute 306, the driving turntable 305 can rotate to drive the movable clamping block 309 to displace, the discharging platform 307 is fixedly connected with the fixed plate 201, the discharging platform 307 is provided with a movable groove 308, the movable clamping block 309 is slidably connected in the chute 306, the movable clamping block 309 is slidably connected in the movable groove 308, and the rubber cushion 310 is fixedly connected with the inner surface of the movable clamping block 309.

Wherein, chute 306 evenly opens on drive carousel 305, and the removal groove 308 evenly opens on blowing platform 307, and chute 306 through connection drive carousel 305, removal groove 308 through connection blowing platform 307.

The fulcrum adjusting structure 4 comprises a driving pulley 401, a driven pulley 402, a rotating shaft 404, a driving bevel gear 405, a driven bevel gear 406, a first rotating rod 407, a driving gear 408, a driven gear 409, a second rotating rod 410, a cam 411 and a sliding rod 412, wherein the driving pulley 401 is arranged on the side surface of the drilling main body assembly 1, the driven pulley 402 is arranged on the drilling main body assembly 1, a transmission belt 403 is connected between the driving pulley 401 and the driven pulley 402, the rotating shaft 404 is fixedly and penetratingly connected with the driven pulley 402, the driving bevel gear 405 is fixedly connected with one end of the rotating shaft 404 far away from the driven pulley 402, the driven bevel gear 406 is meshed with the driving bevel gear 405, the first rotating rod 407 is fixedly connected with the driven bevel gear 406, the first rotating rod 407 is rotatably connected with the drilling main body assembly 1, the driving gear 408 is fixedly connected with the first rotating rod 407, the second rotating rod 410 is fixedly connected with the driven gear 409, the second rotating rod 410 is rotatably connected with the drilling main body assembly 1, the cam 411 is fixedly connected with the second rotating rod 410, the cam 411 can be enabled to follow the second rotating rod 410 to perform angle adjustment together, and the sliding rod 412 is hinged with the cam 411, and the cam 411 can drive the sliding rod 412 to move.

In addition, the fulcrum adjusting structure 4 further includes a first support plate 413, a connecting shaft 414, a second support plate 415, a third support plate 416 and a fixed tooth 417, the first support plate 413 is fixedly connected with the drilling main body assembly 1, the connecting shaft 414 is fixedly and penetratingly connected with the first support plate 413, the driving pulley 401 is rotationally connected with the connecting shaft 414, the second support plate 415 is fixedly connected with the drilling main body assembly 1, the rotating shaft 404 penetrates and rotationally connected with the second support plate 415, the fixed tooth 417 is uniformly distributed on the outer surface of the driving pulley 401, the fixed tooth 417 is fixedly connected with the driving pulley 401, and the fixed tooth 417 is meshed with the vertical rack 108, so that the displacement of the vertical rack 108 can drive the driving pulley 401 to rotate.

Drilling main part subassembly 1 includes base 101, riser 102, lift cylinder 105, lifter plate 106, linking bridge 107, vertical rack 108 and drilling machine 109, riser 102 fixed connection is on base 101, riser 103 has been seted up on the riser 102, logical groove 104 has been seted up to the side of riser 102, lifter cylinder 105 fixed connection riser 102, lifter plate 106 sliding connection is in riser 103, the output of lifter plate 106 fixed connection lifter cylinder 105, linking bridge 107 fixed connection lifter plate 106, linking bridge 107 sliding connection is in logical groove 104, vertical rack 108 fixed connection linking bridge 107, drilling machine 109 fixed connection lifter plate 106.

The end of the sliding rod 412 remote from the second rotating rod 410 is hinged to the docking rod 210, and the fixed teeth 417 are engaged with the vertical rack 108.

The horizontal racks 216 are engaged with the turning gears 218, and the distance between the support plates 413 is larger than the width of the vertical racks 108.

When the movable clamping blocks 309 are in the initial state, the movable clamping blocks 309 on the discharging platform 307 are all positioned at the position, close to the center, of the discharging platform 307, the movable clamping blocks 309 are manually controlled by a worker to move along the moving grooves 308 towards the edge position of the discharging platform 307, along with the movement of the movable clamping blocks 309, the movable clamping blocks 309 slide in the inclined grooves 306, the driving turntable 305 is driven to rotate, the rotating shaft 302 is driven to rotate, the scroll springs 303 are enabled to be in a compressed state, then a multilayer printed circuit board needing to be drilled is placed on the discharging platform 307, the movable clamping blocks 309 are released, the movable clamping blocks 309 are reset under the driving of the scroll springs 303 after losing control, and the rubber cushion 310 on the inner surface of the movable clamping blocks 309 is stopped after contacting with the outer surface of the multilayer printed circuit board.

When the size of the multi-layer printed circuit board is large, the rotation angle of the rotating shaft 302 is large, so that the distance between the butt joint piece 304 on the outer surface of the rotating shaft 302 and the driving lug 219 on the inner surface of the rotating gear 218 is greatly shortened, the clamping cylinder 202 is started, the rotating bracket 203 is pulled after the clamping cylinder 202 is started, the rotating bracket 203 rotates by taking the movable rod 207 as a fulcrum, the rotating bracket 203 pulls the sliding plate 213 to slide along the fixed rail 212 through the transmission plate 215, the horizontal rack 216 drives the rotating gear 218 to rotate along with the sliding of the sliding plate 213, and due to the distance between the driving lug 219 and the butt joint piece 304, the force cannot be transmitted to the rotating shaft 302 when the rotating gear 218 starts to rotate until the driving lug 219 on the inner surface of the rotating gear 218 moves to the butt joint piece 304 on the inner surface of the rotating shaft 302 and the rotating gear 218 has a continuous rotation trend, at the moment, the force born by one end of the transmission plate 215 is connected to the rotating bracket 203, the rotating bracket 302 is transmitted to the rotating shaft 302, and the rotating shaft 302 applies the force to the multi-layer printed circuit board through the limiting groove 209.

After the rotation of the rotating gear 218 is stopped, the lifting cylinder 105 and the drilling machine 109 are started, the lifting cylinder 105 drives the lifting plate 106 to move downwards along the lifting chute 103 after being started, the vertical rack 108 connected with the lifting plate 106 moves downwards synchronously along the lifting plate 106, the driving pulley 401 is driven to rotate in the process of moving downwards the vertical rack 108, the driving pulley 401 drives the driven pulley 402 to synchronously rotate through the driving belt 403, the driven pulley 402 rotates to drive the rotating shaft 404 to rotate, the rotating shaft 404 drives the driving gear 408 to rotate through the driving bevel gear 405, the driving gear 408 drives the driven gear 409 to rotate, the driven gear 409 drives the cam 411 to rotate through the rotating rod two 410, the cam 411 drives the docking rod 210 to slide along the limiting groove 209 through the sliding rod 412 along with the rotation of the cam 411, meanwhile, the movable rod 207 is driven by the limit groove 209 to displace along the sliding groove 208, at this time, the distance between the movable rod 207 and one end of the rotating bracket 203, which is close to the first 211 of the fixed connection block, is gradually reduced, in this case, the force provided by the clamping cylinder 202 is unchanged, the force transmitted by the rotating bracket 203, which is close to one end of the first 211 of the fixed connection block, is gradually amplified, so that the clamping force provided by the limit groove 209 to the multilayer printed circuit board is gradually increased, until the clamping force provided by the limit groove 209 is unchanged after the lifting plate 106 stops descending, along with the descending of the lifting plate 106, the drilling machine 109 is controlled to drive the lifting plate 106 to reset upwards after the completion of the punching operation, along with the resetting of the lifting plate 106, the movable rod 207 is also reset, meanwhile, the clamping cylinder 202 is controlled to drive the rotating bracket 203 to reset after the completion of the resetting, the worker manually removes the multilayer printed wiring board after the punching is completed.

When the size of the multi-layer printed circuit board is smaller, the rotation angle of the rotating shaft 302 is smaller, so that the distance between the butt joint piece 304 on the outer surface of the rotating shaft 302 and the driving pulling piece 219 on the inner surface of the rotating gear 218 is reduced by only a small part, after the clamping cylinder 202 is started, the rotating gear 218 can drive the rotating shaft 302 to rotate after idling for a period of time, and the clamping cylinder 202 and the drilling machine 109 are started to complete the drilling operation after the rotating gear 218 stops rotating.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

The invention and its embodiments have been described above with no limitation, and the actual construction is not limited to the embodiments of the invention as shown in the drawings. In summary, if one of ordinary skill in the art is informed by this disclosure, a structural manner and an embodiment similar to the technical solution should not be creatively devised without departing from the gist of the present invention.

Claims (10)

1. A clamping processing device of a multilayer printed circuit board is characterized in that: including drilling main part subassembly (1), clamping force adjustment mechanism (2), activity clamping structure (3) and fulcrum adjustment structure (4), on drilling main part subassembly (1) was located in clamping force adjustment mechanism (2), on clamping force adjustment mechanism (2) was located in activity clamping structure (3), one side of drilling main part subassembly (1) is located in fulcrum adjustment structure (4), fulcrum adjustment structure (4) are connected with clamping force adjustment mechanism (2).

2. The clamping processing device for a multilayer printed wiring board according to claim 1, wherein: the clamping force adjusting mechanism (2) comprises a driving structure and a driven structure, the driving structure comprises a fixed plate (201), a clamping cylinder (202), a rotating bracket (203), a connecting plate (204), a fixed rod (205), a movable rod (207) and a butt joint rod (210), the fixed plate (201) is fixedly connected with a drilling main body assembly (1), the clamping cylinder (202) is fixedly connected onto the fixed plate (201), the rotating bracket (203) is rotationally connected with the clamping cylinder (202), the connecting plate (204) is fixedly connected with the rotating bracket (203), the fixed rod (205) is fixedly connected between the connecting plates (204), the output end of the clamping cylinder (202) is rotationally connected with the fixed rod (205), a connecting groove (206) is formed in the rotating bracket (203), the movable rod (207) is slidingly connected into the connecting groove (206), a sliding groove (208) is formed in the upper surface of the fixed plate (201), a limit groove (209) is formed in the side surface of the fixed plate (201), the limit groove (209) is fixedly connected with the movable rod (207), the butt joint rod (210) is connected with the limiting groove (209) in a sliding mode.

3. The clamping processing device for a multilayer printed wiring board according to claim 2, wherein: the driven structure comprises a first fixed connecting block (211), a fixed track (212), a second fixed connecting block (213), a second fixed connecting block (214), a transmission plate (215), a horizontal rack (216), a rotating gear (218) and a driving plectrum (219), wherein the first fixed connecting block (211) is fixedly connected to a rotating support (203), the fixed track (212) is fixedly connected with the fixed plate (201), the second fixed connecting block (214) is fixedly connected to the sliding plate (213) in a sliding mode, one end of the transmission plate (215) is hinged to the first fixed connecting block (211), the other end of the transmission plate (215) is hinged to the second fixed connecting block (214), a limiting rotating groove (217) is formed in the upper surface of the fixed plate (201), the rotating gear (218) is rotatably connected to the limiting rotating groove (217), and the driving plectrum (219) is fixedly connected to the inner surface of the rotating gear (218).

4. A holding processing apparatus for a multilayer printed wiring board according to claim 3, wherein: the movable clamping structure (3) comprises a rotating shaft (302), a spiral spring (303), a butt joint piece (304), a driving turntable (305), a discharging platform (307), a movable clamping block (309) and a rubber cushion (310), wherein an installation groove (301) is formed in the upper surface of the fixing plate (201), the rotating shaft (302) is rotationally connected with the fixing plate (201), one end of the spiral spring (303) is fixedly connected with the rotating shaft (302), the other end of the spiral spring (303) is fixedly connected with the fixing plate (201), the butt joint piece (304) is fixedly connected with the rotating shaft (302), the driving turntable (305) is fixedly connected with the rotating shaft (302), a chute (306) is formed in the driving turntable (305), a movable groove (308) is formed in the discharging platform (307), the movable clamping block (309) is slidably connected with the chute (306), and the movable clamping block (309) is slidably connected with the movable groove (308), and the rubber cushion (310) is fixedly connected with the inner surface of the movable clamping block (309).

5. The holding processing device for a multilayer printed wiring board according to claim 4, wherein: the chute (306) is uniformly arranged on the driving turntable (305), the movable groove (308) is uniformly arranged on the discharging platform (307), the chute (306) is connected with the driving turntable (305) in a penetrating way, and the movable groove (308) is connected with the discharging platform (307) in a penetrating way.

6. The holding processing device for a multilayer printed wiring board according to claim 5, wherein: the fulcrum adjusting structure (4) comprises a driving pulley (401), a driven pulley (402), a rotating shaft (404), a driving bevel gear (405), a driven bevel gear (406), a first rotating rod (407), a driving gear (408), a driven gear (409), a second rotating rod (410), a cam (411) and a sliding rod (412), wherein the driving pulley (401) is arranged on the side surface of the drilling main body assembly (1), the driven pulley (402) is arranged on the drilling main body assembly (1), a transmission belt (403) is connected between the driving pulley (401) and the driven pulley (402), the rotating shaft (404) is fixedly connected with the driven pulley (402) in a penetrating manner, the driving bevel gear (405) is fixedly connected with one end of the rotating shaft (404) far away from the driven pulley (402), the driven bevel gear (406) is connected with the driving bevel gear (405) in a meshing manner, the first rotating rod (407) is fixedly connected with the driven bevel gear (406), the first rotating rod (407) is rotatably connected with the drilling main body assembly (1), the driven gear (409) is connected with the second rotating rod (408) in a meshing manner, the second rotating rod (410) is rotatably connected with the drilling main body assembly (1), the cam (411) is fixedly connected with the second rotating rod (410), and the sliding rod (412) is hinged with the cam (411).

7. The holding processing device for a multilayer printed wiring board according to claim 6, wherein: the fulcrum adjusting structure (4) further comprises a first supporting plate (413), a connecting shaft (414), a second supporting plate (415), a third supporting plate (416) and fixed teeth (417), the first supporting plate (413) is fixedly connected with the drilling main body assembly (1), the connecting shaft (414) is fixedly connected with the first supporting plate (413) in a penetrating mode, the driving belt pulley (401) is rotationally connected with the connecting shaft (414), the second supporting plate (415) is fixedly connected with the drilling main body assembly (1), the rotating shaft (404) penetrates through and rotationally connected with the second supporting plate (415), the fixed teeth (417) are uniformly distributed on the outer surface of the driving belt pulley (401), the fixed teeth (417) are fixedly connected with the driving belt pulley (401), and the fixed teeth (417) are meshed with the vertical racks (108).

8. The holding processing device for a multilayer printed wiring board according to claim 7, wherein: drilling main part subassembly (1) include base (101), riser (102), lift cylinder (105), lifter plate (106), linking bridge (107), vertical rack (108) and drilling machine (109), riser (102) fixed connection is on base (101), riser spout (103) have been seted up on riser (102), logical groove (104) have been seted up to the side of riser (102), lifter cylinder (105) fixed connection riser (102), lifter plate (106) sliding connection is in riser spout (103), the output of lifter plate (106) fixed connection lifter cylinder (105), linking bridge (107) fixed connection lifter plate (106), linking bridge (107) sliding connection is in logical inslot (104), vertical rack (108) fixed connection linking bridge (107), drilling machine (109) fixed connection lifter plate (106).

9. The holding processing device for a multilayer printed wiring board according to claim 8, wherein: one end of the sliding rod (412) far away from the second rotating rod (410) is hinged with the butt joint rod (210), and the fixed teeth (417) are in meshed connection with the vertical racks (108).

10. The clamping processing device for a multilayer printed wiring board according to claim 9, wherein: the horizontal racks (216) are connected with the rotating gears (218) in a meshed mode, and the distance between the first support plates (413) is larger than the width of the vertical racks (108).