CN212649946U - A PCB fixing machine for chip mounter - Google Patents

Abstract

The utility model relates to a PCB fixing device's technical field, when carrying out two-sided paster to traditional PCB, PCB fixing machine need demolish PCB's problem many times, provides a PCB fixing machine for chip mounter, including the bottom plate, be provided with the bracing piece on the bottom plate, the one end that the bottom plate was kept away from to the bracing piece is rotated and is connected with the carriage, is provided with the clamping component who is used for fixed PCB on the carriage, still is provided with the first restriction piece of injecing the carriage and being on a parallel with the bottom plate on the bottom plate. This application has when making PCB carry out two-sided paster, and PCB fixed machine need not to demolish PCB's effect many times.

Description

A PCB fixing machine for chip mounter

Technical Field

The application relates to the technical field of PCB fixing devices, in particular to a PCB fixing machine for a chip mounter.

Background

A mounter, also called a "mounter" or a "Surface Mount System" (Surface Mount System), is a device that is disposed behind a dispenser or a screen printer in a production line and that accurately places Surface Mount components on a Printed Circuit Board (PCB) by moving a mounting head. Conventional placement machines generally include both in-plane placement and double-sided placement processes.

The position of traditional chip mounter will generally be earlier fixed with fixing device to PCB, then carry out the installation of components and parts, fixing device on the traditional chip mounter generally adopts the PCB fixing machine, traditional PCB fixing machine generally includes the bottom plate and sets up the clamping unit who is used for pressing from both sides tight PCB on the bottom plate, it is fixed to utilize clamping unit to lock the position of PCB during the use, then paste the components and parts on PCB, paste the dress at components and parts and accomplish the back, demolish clamping unit again.

Aiming at the technical problem, because some PCBs need to be provided with components on the front side and the back side, when the traditional PCB fixing machine carries out double-side mounting on the PCBs, the mounting on one side of the PCBs can be generally carried out firstly, then the PCBs are detached from the clamping assemblies and reversed, and then the PCBs are fixed again, and the inventor considers that the traditional PCB fixing machine has the defect that when the PCBs need to be subjected to double-side mounting, the PCBs need to be detached for many times.

SUMMERY OF THE UTILITY MODEL

In order to enable the PCB fixing machine to carry out double-sided surface mounting without dismounting the PCB for multiple times, the application provides the PCB fixing machine for the surface mounting machine.

The application provides a PCB fixing machine for chip mounter adopts following technical scheme:

the utility model provides a PCB fixing machine for chip mounter, includes the bottom plate, be provided with the bracing piece on the bottom plate, the one end that the bottom plate was kept away from to the bracing piece is rotated and is connected with the carriage, be provided with the clamping component who is used for fixed PCB on the carriage, still be provided with the first restriction piece of injecing the carriage and being on a parallel with the bottom plate on the bottom plate.

Through adopting above-mentioned technical scheme, when needs paste the dress components and parts in the one side of the not dress components and parts of PCB, make the one side that the PCB was not installed rotate to the one side of keeping away from the bottom plate through rotating the carriage, and use first restriction piece to make the carriage be on a parallel with the bottom plate, thereby make PCB be on a parallel with the bottom plate, be favorable to reducing when the two-sided dress components and parts of PCB, need demolish the condition that comes out and reinstall PCB on the PCB fixed machine, make PCB need not to demolish alright with paste the one side of dress components and parts and rotate to the one side of keeping away from the bottom plate and be on a parallel with the bottom plate, be.

Preferably, first restriction piece is including setting up first sleeve and the second sleeve on the bottom plate, sliding connection has first slide bar and second slide bar in first sleeve and the second sleeve respectively, be equipped with first mounting and the second mounting of fixed first slide bar and second slide bar position on first sleeve and the second sleeve respectively, work as when the carriage rotates to with the bottom plate level, first sleeve and second sleeve are just right with carriage perpendicular to axis of rotation's both sides respectively.

By adopting the technical scheme, the first sliding rod and the second sliding rod are moved, so that one ends, far away from the first sleeve and the second sleeve, of the first sliding rod and the second sliding rod are abutted against one side, close to the bottom plate, of the supporting frame, and the positions of the first sliding rod and the second sliding rod are fixed through the first fixing piece and the second fixing piece respectively, so that the supporting frame can be parallel to the bottom plate more quickly, and the conversion of the unprocessed side of the PCB is more convenient; simultaneously, the positions of the first sliding rod and the second sliding rod are fixed through the arrangement of the first fixing piece and the second fixing piece, so that the first sliding rod and the second sliding rod can support the supporting frame, the supporting frame is not easy to rotate, and the supporting frame is more stable.

Preferably, the first fixing piece comprises a round rod which is rotatably connected to one end, far away from one end of the bottom plate, of the first sleeve, a first threaded hole penetrates through the round rod, an external thread is formed in the outer side wall of the first sliding rod in a concave mode, and the first sliding rod is in threaded connection with the round rod.

By adopting the technical scheme, the first slide bar is in threaded connection with the round bar, so that the position of the first slide bar is fixed while being adjusted, the first slide bar can play a role of a support frame after being abutted against the support frame, and a PCB on the support frame is more stable during processing; meanwhile, the position of the first sliding rod is adjusted more conveniently and quickly.

Preferably, a connecting rod is fixedly connected to the first sliding rod, and one end, far away from the first sliding rod, of the connecting rod is fixedly connected with the second sliding rod.

By adopting the technical scheme, the first slide bar and the second slide bar can slide simultaneously through the arrangement of the connecting rod, so that the first slide bar and the second slide bar can be more conveniently and quickly abutted against the supporting frame, and the situation that the first slide bar and the second slide bar need to be moved respectively to be abutted against the supporting frame is favorably reduced; simultaneously, make the height of first slide bar and second slide bar adjust to unanimity more easily to make the carriage keep the state parallel with the bottom plate under the support of first slide bar and second slide bar more easily, be favorable to keeping the level of carriage better.

Preferably, one side that the carriage is close to the bottom plate and one side of keeping away from the bottom plate all are provided with a plurality of fixed orificess, work as when the carriage rotates to being parallel with the bottom plate, the telescopic one end of second is kept away from with the second slide bar to the telescopic one end of first slide bar section of thick bamboo and second is just right with the fixed orifices respectively.

By adopting the technical scheme, through the arrangement of the fixing holes, the situation that the first sliding rod, the second sliding rod and the supporting frame slide due to vibration generated in the machining process of the chip mounter is favorably reduced, the situation that the supporting frame cannot be parallel to the bottom plate due to the fact that the first sliding rod, the second sliding rod and the supporting frame slide is favorably reduced, and the supporting frame is favorably and more stably parallel to the bottom plate.

Preferably, the clamping assembly comprises a first clamping block and a second clamping block which are connected to the supporting frame in a sliding mode, the first clamping block and the second clamping block are opposite to each other, and the distance between the first clamping block and the second clamping block is adjustable.

By adopting the technical scheme, when the specification of the PCB is changed, the PCB with different specifications can be clamped by adjusting the positions of the first clamping block and the second clamping block, the condition that the PCB clamping assembly needs to be replaced when the specification of the PCB is changed is favorably reduced, resources are saved, and the application range of the PCB fixing machine is favorably enlarged.

Preferably, the supporting frame is further provided with a linkage piece for linking the first clamping block and the second clamping block to be close to or far away from simultaneously.

Through adopting above-mentioned technical scheme, through the setting of linkage for the operation that is close to each other or keeps away from each other of first clamping piece and second clamping piece is more convenient, is favorable to reducing the in-process that the tight degree of clamp that adjusts clamping unit needs to adjust the condition that first clamp piece and second clamp piece respectively, makes the position control that first clamp piece and second clamp piece more convenient.

Preferably, a third groove is formed in the opposite side of the first clamping block and the second clamping block in a recessed mode, and when the first clamping block and the second clamping block clamp the PCB, the third grooves of the first clamping block and the second clamping block are abutted to the PCB.

By adopting the technical scheme, when the first clamping block and the second clamping block are fixedly provided with the PCB, the PCB is not easy to displace in other directions due to the arrangement of the third groove; so that the first clamping block and the second clamping block can better clamp the PCB.

Preferably, a flexible piece is arranged in each third groove.

Through adopting above-mentioned technical scheme, through the setting of flexible piece, be favorable to reducing the condition that the in-process that first clamp tight piece and second press from both sides tight piece and press from both sides tight PCB causes wearing and tearing to PCB's lateral wall for first clamp tight piece and second press from both sides tight piece and can centre gripping PCB better.

Preferably, both sides along width direction on the carriage are provided with logical groove, the tight piece of first clamp and the tight piece of second clamp on the tight piece of first clamp all are provided with the connecting block along length direction's both ends, the equal sliding connection of the connecting block of the tight piece of first clamp and the tight piece of second clamp is in leading to the inslot, the linkage includes the threaded rod, the threaded rod is provided with external screw thread and threaded rod along length direction both ends and sets up along the external screw thread at length direction both ends is reverse, the tight piece of first clamp is gone up and the tight piece of second clamp's connecting block all runs through the third screw hole, the both ends of threaded rod respectively with the tight piece of first clamp and the tight piece.

By adopting the technical scheme, when the PCB needs to be clamped, the first clamping block and the second clamping block can be close to or away from each other by rotating the threaded rod, and the threaded connection has a self-locking function at the same time, so that the first clamping block and the second clamping block are fixed while the positions are adjusted, and the PCB can be better fixed on a PCB fixing machine; simultaneously, threaded connection can also finely tune for the position control of first clamp tight piece and second clamp tight piece is more accurate, thereby makes clamping component adapt to the PCB of different specifications better, is favorable to clamping component to press from both sides tight PCB better.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the supporting frame is rotatably connected to the supporting rod, the clamping assembly and the first limiting piece, so that the PCB does not need to be dismounted for multiple times when double-sided mounting of the PCB is carried out, and the condition of PCB abrasion caused by dismounting the PCB for multiple times is favorably reduced;

2. through the arrangement of the first sleeve, the first sliding rod, the second sleeve, the second sliding rod, the first fixing piece and the second fixing piece, the PCB on the supporting frame is more stable during processing; meanwhile, the supporting frame is not easy to rotate;

3. through the setting of first mounting for the position of first slide bar is fixed when adjusting, makes the regulation of first slide bar position more simple and convenient.

Drawings

Fig. 1 is a schematic structural diagram of an overall PCB fixing machine for a chip mounter according to an embodiment of the present application;

fig. 2 is a schematic diagram of an internal structure of a PCB fixing machine for a chip mounter according to an embodiment of the present application;

FIG. 3 is an enlarged schematic view of section A of FIG. 2;

fig. 4 is an enlarged schematic view of a portion B in fig. 2.

Description of reference numerals: 1. a base plate; 11. a support bar; 12. a fixed seat; 13. a ball bearing; 2. a first limiting member; 21. a first sleeve; 22. a round bar; 23. a first slide bar; 24. a connecting rod; 25. a second sleeve; 251. locking the bolt; 26. a second slide bar; 3. a support frame; 30. a fixed shaft; 301. a first handle; 31. a through groove; 32. a clamping assembly; 321. a first clamping block; 322. a second clamping block; 33. a flexible member; 34. connecting blocks; 35. a threaded rod; 351. a second handle; 36. a fixing hole; 37. and a third groove.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses a PCB fixing machine for a chip mounter. Referring to fig. 1 and 2, the PCB clamping device comprises a bottom plate 1, wherein a supporting rod 11 is arranged on the bottom plate 1, a supporting frame 3 is rotatably connected to the supporting rod 11, a clamping assembly 32 for clamping a PCB is arranged on the supporting frame 3, and a first limiting part 2 for fixing the position of the supporting frame 3 is further arranged on the bottom plate 1.

Referring to fig. 1 and 2, in this embodiment, the bottom plate 1 is a rectangular plate, the number of the support rods 11 is two, the two support rods 11 are all perpendicular to the bottom plate 1, the two support rods 11 are connected to the fixing base 12 at one end far away from the bottom plate 1, the fixing base 12 is penetrated by a first through hole (not shown), the ball bearing 13 is installed in the first through hole, the outer side wall of the fixed outer ring of the ball bearing 13 is tightly abutted to the inner wall of the first through hole, the fixing shafts 30 are fixedly connected to the middle positions of the support frame 3 at two ends along the length direction, and the fixing shafts 30 at two ends of the support frame 3 are tightly abutted to the side walls of the rotating inner rings of the two ball bearings. The fixed shaft 30 partially extends out of the fixed base 12, and a first handle 301 is fixedly connected to one end of the fixed shaft 30, which is far away from the supporting frame 3.

Referring to fig. 2 and 3, the first limiting member 2 includes a first sleeve 21 fixedly connected to an intermediate position on one side of the bottom plate 1 along the width direction, the first sleeve 21 is perpendicular to the bottom plate 1, a first sliding rod 23 is movably connected in the first sleeve 21, a first fixing member (not shown in the figure) for fixing the position of the first sliding rod 23 is further disposed on the first sleeve 21, the first fixing member includes a round rod 22 rotatably connected to one end of the first sleeve 21 away from the bottom plate, a first threaded hole (not shown in the figure) is further penetrated through one end of the round rod 22 away from the first sleeve 21, an external thread is recessed on a circumferential outer side wall of the first sliding rod 23, the first sliding rod 23 is in threaded connection with the first threaded hole, a chamfer is disposed at one end of the first sliding rod 23 away from the first sleeve 21, and an anti-slip line is also recessed on.

Referring to fig. 2 and 3, a second sleeve 25 is further fixedly connected to one side of the bottom plate 1, which is far away from the first sleeve 21 in the width direction, the second sleeve 25 is opposite to the first sleeve 21, a second slide bar 26 is movably connected in the second sleeve 25, a chamfer is arranged at one end, which is far away from the second sleeve 25, of the second slide bar 26, a second fixing piece (not shown in the figure) for fixing the position of the second slide bar 26 is further arranged on the second sleeve 25, the second fixing piece includes a second through hole (not shown in the figure) penetrating through the inner side wall of the second sleeve 25, a second threaded hole (not shown in the figure) is recessed in the second slide bar 26, the second threaded hole is in threaded connection with a locking bolt 251, and when the second slide bar 26 slides to one end, which is far away from the second sleeve 25, and abuts against the support frame 3, and the support. The circumferential outer side wall of the second sliding rod 26 is also fixedly connected with a connecting rod 24, and one end of the connecting rod 24 far away from the second sliding rod 26 is fixedly connected with the first sliding rod 23.

Referring to fig. 2 and 3, the central positions of both sides of the supporting frame 3 away from the bottom plate 1 and the side close to the bottom plate 1 along the width direction are recessed with fixing holes 36, and when the supporting frame 3 rotates to be parallel to the bottom plate 1, the first sliding bar 23 and the second sliding bar 26 are respectively opposite to the fixing holes 36 of both sides of the supporting frame 3 along the width direction.

Referring to fig. 2 and 4, the clamping assembly 32 includes a first clamping block 321 and a second clamping block 322 slidably connected to the supporting frame 3, through slots 31 are respectively formed on outer sidewalls of two sides of the supporting frame 3 along the width direction, connecting blocks 34 are respectively fixedly connected to two ends of the first clamping block 321 and the second clamping block 322 along the length direction, the connecting blocks 34 at two ends of the first clamping block 321 and the second clamping block 322 along the length direction are respectively slidably connected to the through slots 31 at two ends of the supporting frame 3 along the width direction, a third groove 37 is recessed on one side of the first clamping block 321 opposite to the second clamping block 322, and a flexible member 33 is further fixedly connected to the third groove 37, in this embodiment, the flexible member 33 is a rubber sleeve.

Referring to fig. 2 and 4, a linkage piece (not shown in the figure) for linking the first clamping block 321 and the second clamping block 322 to be close to or far away from each other is further arranged on the support frame 3, the linkage piece comprises a threaded rod 35, both ends of the threaded rod 35 in the length direction are both recessed with external threads, the threaded rod 35 is reversely arranged along the external threads at both ends of the length direction, third threaded holes (not shown in the figure) are respectively penetrated through the connecting blocks 34 at the same ends of the first clamping block 321 and the second clamping block 322 in the length direction, the threaded rod 35 is respectively in threaded connection with the connecting blocks 34 of the first clamping block 321 and the connecting blocks 34 of the second clamping block 322, and a second handle 351 is further fixedly connected to one end of the threaded rod 35.

The implementation principle of the PCB fixing machine for the chip mounter is as follows: when it is desired to mount a component on the side of the PCB mounted on the clamping assembly 32 where no component is mounted, the first handle 301 is rotated, the supporting frame 3 is driven to rotate by the first handle 301, when the side of the PCB in the supporting frame 3, on which no component is mounted, faces to the side far away from the bottom plate 1, the round rod 22 is screwed, so that the first sliding rod 23 moves towards the direction close to the bottom plate 1, meanwhile, the first sliding rod 23 drives the second sliding rod 26 to move towards the direction close to the bottom plate 1 through the connecting rod 24 until one end of the first sliding rod 23 far away from the first sleeve 21 and one end of the second sliding rod 26 far away from the second sleeve 25 are respectively abutted against the fixing holes 36 on two sides of the width of one side of the supporting frame 3 close to the bottom plate 1, then, the locking bolt 251 is rotated, so that the locking bolt 251 penetrates through the second through hole and is in threaded connection with the second threaded hole, so that the second sliding rod 26 is fixed, i.e. the turnover of the PCB is completed. The PCB double-sided mounting device is beneficial to reducing the condition that the PCB needs to be dismounted for multiple times when the PCB carries out double-sided mounting, so that only the supporting frame 3 needs to be rotated and limited by the first limiting part 2, one side of the PCB which is not mounted with components faces away from the bottom plate 1 and is parallel to the bottom plate 1, the PCB double-sided mounting components are more convenient, the turnover of the PCB is more convenient and faster, and the PCB can be dismounted for multiple times, so that the PCB abrasion is caused.

Through the arrangement of the chamfers at the end, far away from the first sleeve 21, of the first slide bar 23 and the end, far away from the second sleeve 25, of the second slide bar 26, the stress concentration of the first slide bar 23 and the second slide bar 26 is reduced, the strength of the first slide bar 23 and the strength of the second slide bar 26 are increased, and meanwhile, the connection between the first slide bar 23 and the fixing hole 36 and the connection between the second slide bar 26 and the fixing hole are more stable.

Through the setting of linkage piece for second clamp piece 322 and first clamp piece 321 can keep away from each other or be close to each other simultaneously, are favorable to reducing the condition that needs remove first clamp piece 321 and second clamp piece 322 respectively and press from both sides tight to the PCB, make first clamp piece 321 and second clamp piece 322 can press from both sides tight to the PCB more convenient and fast ground.

Through the arrangement of the flexible piece 33, the damage of the side wall of the PCB caused by the first clamping block 321 and the second clamping block 322 in the process of clamping the PCB is reduced, so that the PCB can be better clamped by the first clamping block 321 and the second clamping block 322.

The circular rod 22 is more convenient and faster to rotate and the first sliding rod 23 is more convenient and faster to move due to the fact that the anti-skid grains are recessed on the outer side wall of the circumference of the circular rod 22.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (10)

1. The utility model provides a PCB fixing machine for chip mounter, includes bottom plate (1), its characterized in that: be provided with bracing piece (11) on bottom plate (1), the one end that bottom plate (1) was kept away from in bracing piece (11) rotates and is connected with carriage (3), be provided with clamping component (32) that are used for fixed PCB on carriage (3), still be provided with on bottom plate (1) and inject carriage (3) and be on a parallel with first restriction piece (2) of bottom plate (1).

2. The PCB fixture for a mounter according to claim 1, wherein: first limiter (2) are including setting up first sleeve (21) and second sleeve (25) on bottom plate (1), sliding connection has first slide bar (23) and second slide bar (26) in first sleeve (21) and second sleeve (25) respectively, be equipped with the first mounting and the second mounting of fixed first slide bar (23) and second slide bar (26) position on first sleeve (21) and second sleeve (25) respectively, work as when carriage (3) rotate to with bottom plate (1) level, first sleeve (21) and second sleeve (25) are just right with carriage (3) perpendicular to axis of rotation's both sides respectively.

3. The PCB fixture for a mounter according to claim 2, wherein: first mounting is including rotating round bar (22) of connecting in first sleeve (21) and keeping away from bottom plate (1) one end, it has first screw hole to run through on round bar (22), the lateral wall of first slide bar (23) is sunken to have the external screw thread, first slide bar (23) and round bar (22) threaded connection.

4. The PCB fixture for a mounter according to claim 3, wherein: a connecting rod (24) is fixedly connected to the first sliding rod (23), and one end, far away from the first sliding rod (23), of the connecting rod (24) is fixedly connected with a second sliding rod (26).

5. The PCB fixture for a placement machine of claim 4, wherein: one side that carriage (3) are close to bottom plate (1) and keep away from bottom plate (1) all is provided with a plurality of fixed orificess (36), works as carriage (3) rotate to when being parallel with bottom plate (1), the one end that first sleeve (21) were kept away from to first slide bar (23) section of thick bamboo and second sleeve (25) were kept away from to second slide bar (26) one end respectively just with fixed orificess (36).

6. The PCB fixture for a mounter according to claim 1, wherein: the clamping assembly (32) comprises a first clamping block (321) and a second clamping block (322) which are connected to the supporting frame (3) in a sliding mode, the first clamping block (321) and the second clamping block (322) are opposite to each other, and the distance between the first clamping block (321) and the second clamping block (322) is adjustable.

7. The PCB fixture for a mounter according to claim 6, wherein: the supporting frame (3) is further provided with a linkage piece for linking the first clamping block (321) and the second clamping block (322) to be close to or far away from simultaneously.

8. The PCB fixture for a pick & place machine of claim 7, wherein: and third grooves (37) are respectively formed in the opposite sides of the first clamping block (321) and the second clamping block (322), and when the first clamping block (321) and the second clamping block (322) clamp the PCB, the third grooves (37) of the first clamping block (321) and the second clamping block (322) are respectively abutted to the PCB.

9. The PCB fixture for a pick & place machine of claim 8, wherein: and flexible parts (33) are arranged in the third grooves (37).

10. The PCB fixture for a pick & place machine of claim 7, wherein: both sides along width direction on carriage (3) all are provided with logical groove (31), first press from both sides tight piece (321) on first clamp piece (321) and second press from both sides tight piece (322) and all be provided with connecting block (34) along length direction's both ends, the equal sliding connection in logical groove (31) of connecting block (34) of first clamp piece (321) and second clamp piece (322), the linkage includes threaded rod (35), threaded rod (35) are provided with external screw thread and threaded rod (35) along the reverse setting of external screw thread at length direction both ends along length direction both ends, connecting block (34) of first clamp piece (321) and second clamp piece (322) all run through the third screw hole, the both ends of threaded rod (35) respectively with first clamp piece (321) and connecting block (34) threaded connection of second clamp piece (322).

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