A circuit board support fixture and an adjustment mechanism for adjusting the fixture

Abstract

The present invention discloses a circuit board support clamp, including a clamping frame, the clamping frame including a first clamping part, a second clamping part and a telescopic structure, the telescopic structure being provided with a locking device for limiting the telescopic structure from being extended or retracted. The present invention also discloses an adjustment mechanism for adjusting the above-mentioned circuit board support clamp, including a panel and an adjustment component for adjusting the distance between the first clamping part and the second clamping part, the adjustment component including a first clamping device for clamping the first clamping part, a second clamping device for clamping the second clamping part, an unlocking device for pushing a positioning pin out of a limiting groove, and a first adjustment device for adjusting the distance between the first clamping device and the second clamping device. The width of the support clamp can be adjusted according to the width of the circuit board through the first adjustment device. The width of the support clamp is automatically adjusted by the adjustment mechanism, and no manual adjustment is required, thereby saving labor and improving production efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of clamps, and in particular to a circuit board supporting clamp and an adjusting mechanism for adjusting the clamp. Background Art

[0002] When using traditional roller conveyor lines to transport circuit boards, roller indentations are easily formed on the surface of the circuit boards, scratching the protective film of the circuit boards. Therefore, when transporting circuit boards, a support fixture is often used to clamp the circuit boards before transporting them. The conveying roller contacts the support fixture instead of directly contacting the circuit boards, thereby preventing the conveying roller from scratching the circuit boards.

[0003] Existing circuit board support fixtures on the market generally have fixed sizes and are only suitable for clamping circuit boards of specific sizes or require manual adjustment and clamping according to the size of the circuit board. For circuit boards of different sizes, manual adjustment or replacement of fixtures of different specifications is required, which is inefficient during product conversion. There is currently no effective solution to the above problems.

[0004] The present invention is made based on the above-mentioned situation. Summary of the Invention

[0005] The present invention overcomes the deficiencies of the prior art and provides a circuit board supporting fixture applicable to circuit boards of different sizes and an adjusting mechanism capable of automatically adjusting the clamping size of the circuit board supporting fixture.

[0006] The present invention is achieved through the following technical solutions:

[0007] A circuit board support fixture includes a clamping frame, the clamping frame including a first clamping portion for clamping the circuit board, a second clamping portion, and a telescopic structure for adjusting the distance between the first clamping portion and the second clamping portion, the telescopic structure being provided with a locking device for limiting the telescopic structure from extending or retracting.

[0008] As described above, the circuit board support clamp comprises a telescopic structure including a sleeve provided on one of the first clamping portion and the second clamping portion and a connecting rod provided on the other and capable of being inserted into the sleeve. The locking device comprises a row of positioning grooves provided on the connecting rod and a rotating block hinged at one end to the sleeve, and the other end of the rotating block is provided with a positioning pin capable of being inserted into the positioning groove.

[0009] In the circuit board supporting fixture as described above, the rotating block is provided with a first magnetic member, and the sleeve is provided with a second magnetic member at a position corresponding to the first magnetic member that can be magnetically attracted to the first magnetic member.

[0010] In the circuit board supporting fixture as described above, the sleeve is provided with a liquid guide groove and an air blowing port connected to the liquid guide groove.

[0011] In the circuit board supporting fixture as described above, the first clamping portion and the second clamping portion are each provided with a row of clamps for clamping the circuit board.

[0012] An adjustment mechanism for adjusting the above-mentioned circuit board support clamp includes a panel and an adjustment component installed on the panel for adjusting the distance between the first clamping part and the second clamping part. The adjustment component includes a first clamping device for clamping the first clamping part, a second clamping device for clamping the second clamping part, an unlocking device for pushing the positioning pin out of the positioning groove, and a first adjustment device for adjusting the distance between the first clamping device and the second clamping device.

[0013] As described above, an adjustment mechanism for adjusting a circuit board support fixture, the first clamping device and the second clamping device both include a mounting frame, a fixed plate mounted on the mounting frame, a movable plate slidably connected to the mounting frame, and a first driving device mounted on the fixed plate to drive the movable plate to slide toward or away from the fixed plate to clamp or release the circuit board support fixture.

[0014] In the adjusting mechanism for adjusting the circuit board support fixture as described above, the mounting frame is further provided with a handle that can press the clamp when rotating to thereby open a rotating clamping plate of the clamp and a second driving device that drives the rotating clamping plate to rotate.

[0015] As described above, an adjustment mechanism for adjusting a circuit board support clamp, the unlocking device includes a first cylinder, a telescopic rod of the first cylinder is provided with a push block capable of lifting a rotating block, and the first adjustment device includes a third driving device provided on a panel for moving the second clamping device away from or close to the first clamping device.

[0016] As described above, an adjustment mechanism for adjusting a circuit board support fixture, the adjustment mechanism also includes a feed assembly provided on the front and rear sides of the adjustment assembly and used for feeding the circuit board support fixture into the circuit board support fixture, and a discharge assembly for discharging the circuit board support fixture out of the circuit board support fixture, the feed assembly includes a first lower conveying roller group provided on the panel and a first upper guide roller group provided above the first lower conveying roller group, the discharge assembly includes a second lower conveying roller group provided on the panel and a second upper guide roller group provided above the second lower conveying roller group, the panel is also provided with a fourth drive device for moving the first clamping device between the feed assembly and the discharge assembly, thereby enabling the first clamping device to clamp or put down the circuit board support fixture, the first clamping device is also provided with a pushing assembly for lifting the circuit board support fixture so that the circuit board support fixture is separated from the first lower conveying roller group.

[0017] Compared with the prior art, the present invention has the following advantages:

[0018] 1. A telescopic structure is provided between the first clamping part and the second clamping part. The distance between the first clamping part and the second clamping part can be adjusted according to the width of the circuit board to be clamped, so that the circuit board support clamp can be suitable for clamping circuit boards of different widths. A locking device is provided on the telescopic structure to limit the telescopic structure from being extended or retracted. When the support clamp is clamped with the circuit board, the locking device can limit the telescopic structure from being extended or retracted, thereby making the clamping of the circuit board more stable and preventing the clamp from sliding along the circuit board and scratching and falling off the circuit board.

[0019] 2. A first magnetic part is provided on the rotating block, and a second magnetic part that can magnetically engage with the first magnetic part is provided on the sleeve at a position corresponding to the first magnetic part. The first magnetic part and the second magnetic part are magnetically engaged to limit the rotation of the rotating block so that the positioning pin exits the positioning slot.

[0020] 3. During the processing of circuit boards, it is sometimes necessary to use chemicals to spray the circuit boards. The chemicals are easy to accumulate in the gap between the connecting rod and the sleeve. The sleeve is provided with a liquid guide groove and an air outlet connected to the liquid guide groove. It is easier to dry the chemicals by blowing a fan towards the air outlet.

[0021] 4. A row of clips for clamping the circuit board is provided on each of the first clamping portion and the second clamping portion. Different numbers of clips can be selected to clamp the circuit board according to the length of the circuit board, thereby making the support fixture suitable for circuit boards of different lengths.

[0022] 5. A first adjusting device for adjusting the spacing is provided between the first clamping device and the second clamping device, which can adjust the width of the supporting fixture according to the width of the circuit board. The width of the supporting fixture is automatically adjusted by the adjusting mechanism, and no manual adjustment is required, which saves labor and improves production efficiency.

[0023] 6. The mounting frame is also provided with a handle that can press the clamp when rotating to open the rotating clamp and a second driving device that drives the rotating clamp to rotate, which can automatically open the clamp and clamp the circuit board.

[0024] 7. The front and rear sides of the adjustment component are used to input the feed component of the circuit board support fixture and the discharge component is used to output the circuit board support fixture. The feed component and the discharge component are used to feed and discharge the material automatically, thereby continuously adjusting the support fixture in batches. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The specific embodiments of the present invention are further described in detail below with reference to the accompanying drawings, wherein:

[0026] Figure 1 It is a schematic structural diagram of the circuit board support fixture of the present invention;

[0027] Figure 2It is a structural schematic diagram of the telescopic structure and the locking device box body in the present invention;

[0028] Figure 3 yes Figure 2 Enlarged view of part A in the middle;

[0029] Figure 4 yes Figure 1 Enlarged view of middle part B;

[0030] Figure 5 This is a schematic diagram of the structure of the adjustment mechanism in the present invention Figure 1 ;

[0031] Figure 6 is a side view of the adjustment mechanism of the present invention;

[0032] Figure 7 This is a schematic diagram of the structure of the adjustment mechanism in the present invention Figure 2 ;

[0033] Figure 8 This is a schematic diagram of a state in which the first clamping portion and the second clamping portion clamp the supporting fixture in the present invention;

[0034] Figure 9 yes Figure 8 Enlarged view of the middle C section;

[0035] Figure 10 This is a schematic diagram of the structure of the first clamping part in the present invention Figure 1 ;

[0036] Figure 11 This is a schematic diagram of the structure of the first clamping part in the present invention Figure 2 ;

[0037] Figure 12 It is a partial cross-sectional view of the adjustment mechanism in the present invention. DETAILED DESCRIPTION

[0038] The present invention will be further described below in conjunction with the accompanying drawings:

[0039] like Figures 1 to 4 A circuit board support fixture shown includes a clamping frame 1, wherein the clamping frame 1 includes a first clamping portion 11 for clamping the circuit board, a second clamping portion 12, and a telescopic structure for adjusting the distance between the first clamping portion 11 and the second clamping portion 12, and the telescopic structure is provided with a locking device 13 for limiting the telescopic structure from extending and retracting.

[0040] The distance between the first clamping portion 11 and the second clamping portion 12 can be adjusted according to the width of the circuit board to be clamped, so that the circuit board support clamp can be suitable for clamping circuit boards of different widths. A locking device 13 is provided on the telescopic structure for limiting the telescopic structure from being extended or retracted. When the support clamp clamps the circuit board, the locking device 13 can be used to limit the telescopic structure from being extended or retracted, thereby making the clamping of the circuit board more stable and preventing the clip 3 from sliding along the circuit board and scratching and falling off the circuit board.

[0041] The telescopic structure includes a sleeve 21 provided on one of the first clamping part 11 and the second clamping part 12, and a connecting rod 22 provided on the other and capable of being inserted into the sleeve 21. The locking device 13 includes a row of positioning grooves 131 provided on the connecting rod 22 and a rotating block 132 hinged at one end on the sleeve 21. The other end of the rotating block 132 is provided with a positioning pin 133 capable of being inserted into the positioning groove 131. A first magnetic member 1321 is provided on the rotating block 132. A second magnetic member 211 that can be magnetically attracted to the first magnetic member 1321 is provided at a position corresponding to the first magnetic member 1321 on the sleeve 21. The first magnetic member 1321 is magnetically attracted to the second magnetic member 211 to limit the rotation of the rotating block 132, so that the positioning pin 133 exits the positioning groove 131. The first magnetic member 1321 may be a magnet or a ferromagnetic material. When the first magnetic member 1321 is a magnet, the second magnetic member 211 may be a magnet or a ferromagnetic material. When the first magnetic member 1321 is a ferromagnetic material, the second magnetic member 211 is a magnet.

[0042] The sleeve 21 is provided with a liquid guide groove 212 and an air blowing port 213 connected to the liquid guide groove 212. During the processing of the circuit board, it is sometimes necessary to use chemicals to spray the circuit board. The chemicals are easily accumulated in the gap between the connecting rod 22 and the sleeve 21. The sleeve 21 is provided with a liquid guide groove 212 and an air blowing port 213 connected to the liquid guide groove 212. It is easier to dry the chemicals by blowing a fan towards the air blowing port 213 to prevent the chemicals from accumulating and flowing onto the circuit board, affecting the surface quality of the circuit board.

[0043] The first clamping portion 11 and the second clamping portion 12 are both provided with a row of clips 3 for clamping the circuit board. Different numbers of clips 3 can be selected to clamp the circuit board according to the length of the circuit board, thereby making the support fixture suitable for circuit boards of different lengths.

[0044] like Figures 5 to 12An adjustment mechanism for adjusting the above-mentioned circuit board support clamp is shown, including a panel 4 and an adjustment component installed on the panel 4 for adjusting the distance between the first clamping part 11 and the second clamping part 12. The adjustment component includes a first clamping device 51 for clamping the first clamping part 11, a second clamping device 52 for clamping the second clamping part 12, an unlocking device 53 for pushing the positioning pin 133 out of the positioning groove 131, and a first adjustment device for adjusting the distance between the first clamping device 51 and the second clamping device 52. The width of the support clamp can be adjusted according to the width of the circuit board through the first adjustment device. The width of the support clamp is automatically adjusted by the adjustment mechanism, and no manual adjustment is required, which saves labor and improves production efficiency.

[0045] The adjustment mechanism also includes a feeding assembly provided on the front and rear sides of the adjustment assembly and used to feed the circuit board support fixture and a discharging assembly for discharging the circuit board support fixture. The feeding assembly includes a first lower conveying roller group 61 provided on the panel 4 and a first upper guide roller group 62 provided above the first lower conveying roller group 61. The discharging assembly includes a second lower conveying roller group 71 provided on the panel 4 and a second upper guide roller group 72 provided above the second lower conveying roller group 71. The panel 4 is also provided with a first clamping member for The holding device 51 moves between the feed assembly and the discharge assembly, thereby enabling the first clamping device 51 to grip or release the circuit board support fixture. The fourth drive device 8, which allows the feed assembly and the discharge assembly to automatically feed and discharge the circuit board support fixture, continuously adjusts the support fixture in batches. The first clamping device 51 is also provided with a pushing assembly 9 for lifting the circuit board support fixture and disengaging it from the first lower conveyor roller assembly 61. The pushing assembly 9 includes a second cylinder 91 and a pushing member 92 provided on the piston rod of the second cylinder 91. The fourth drive device 8 can be a screw drive mechanism, a linear module, or an electric cylinder. The panel 4 is also provided with a fifth drive device for driving the first lower conveyor roller assembly 61 and a sixth drive device for driving the second lower conveyor roller assembly 71. The fifth and sixth drives can be drive motors, belt drive assemblies, or chain drive assemblies.

[0046] The adjustment mechanism also includes a bracket 10 for installing the first upper guide roller group 62 and the second upper guide roller group 72. A first height adjustment device 101 for adjusting the height of the first upper guide roller group 62 is provided between the bracket 10 and the first upper guide roller group 62. A second height adjustment device 102 for adjusting the second upper guide roller group 72 is provided between the bracket 10 and the second upper guide roller group 72. The first height adjustment device 101 and the second height adjustment device 102 can be cylinders.

[0047] The unlocking device 53 includes a first cylinder, and a push block 531 capable of lifting the rotating block 132 is provided on the piston rod of the first cylinder. The piston rod of the first cylinder is extended and retracted so that the push block 531 lifts the rotating block 132 and the positioning pin 133 exits the positioning slot 131 to unlock the lock; the first adjusting device includes a third driving device 54 provided on the panel 4 for moving the second clamping device 52 away from or close to the first clamping device 51. The third driving device is adjusted according to the width of the circuit board to adjust the distance between the first clamping device 51 and the second clamping device 52, so that the support fixture can clamp circuit board support fixtures of different widths. The third driving device 54 can be a screw drive mechanism, a linear module or an electric cylinder.

[0048] The first clamping device 51 and the second clamping device 52 both include a mounting frame 511, a fixed plate 512 mounted on the mounting frame 511, a movable plate 513 slidably connected to the mounting frame 511, and a first driving device 514 mounted on the fixed plate 512 to drive the movable plate 513 to slide toward or away from the fixed plate 512 to clamp or release the circuit board supporting fixture. The first driving device 514 can be a cylinder or a screw driving mechanism. The mounting frame 511 is also provided with a rotating clamping plate 515 that can press the handle 31 of the clip 3 when rotated to open the clip 3, and a second driving device 516 that drives the rotating clamping plate 515 to rotate. The second driving device 516 drives the rotating clamping plate 515 to rotate, thereby squeezing the handle 31 of the clip 3 to open the clip 3 so that the clip 3 clamps or releases the circuit board. The second driving device 516 can be a motor or a rotary cylinder.

[0049] The upper and lower parts of the first clamping device 51 are both provided with first sensors for sensing the support clamp. The upper and lower parts of the second clamping device 52 are both provided with second sensors for sensing the support clamp.

[0050] The regulating mechanism further includes a control system, and the first driving device 514 , the second driving device 516 , the third driving device 54 and the fourth driving device 8 are all communicatively connected to the control system.

[0051] Principle of the adjustment mechanism:

[0052] First, the fourth driving device 8 is used to move the first clamping device 51 to the feeding assembly, and the empty circuit board support fixture is transferred to the first clamping device 51 through the feeding assembly. When the first sensor at the lower part of the first clamping device 51 senses the circuit board support fixture, the support fixture is lifted up by the pushing assembly 9 to separate the support fixture from the first lower conveying roller group 61. When the first sensor at the upper part of the first clamping device 51 senses the circuit board support fixture, the first driving device 514 drives the movable plate 513 to clamp the first clamping part 11, and then the fourth driving device 514 drives the movable plate 513 to clamp the first clamping part 11. The device 8 moves the first clamping device 51 to a position aligned with the second clamping device 52. At this time, the unlocking device 53 pushes the positioning pin 133 out of the positioning slot 131, and the third driving device 54 drives the second clamping device 52 to move toward the supporting fixture. The second clamping device 52 clamps the second clamping portion 12 of the supporting fixture and pulls the second clamping portion 12 back to reserve enough space for clamping the circuit board. After that, the second driving device 516 drives the rotating clamp 515 to rotate and squeeze the handle 31 of the clamp 3 to open the clamp, and then the circuit board is sucked by the robot. The circuit board is placed in the supporting fixture and the second driving device 516 drives the rotating clamping plate 515 to rotate back to release the handle 31 so that the clamp 3 clamps the circuit board. At this time, the rotating clamping plate on the second clamping device 52 is rotated by the rotating cylinder to open the clamp 3 on the second clamping part 12. The control system drives the second clamping device 52 through the third driving device 54 according to the moving distance of the second clamping device 52 to push the second clamping part 12 toward the circuit board by the same distance, and then rotates the rotating clamping plate on the second clamping device 52 back by the rotating cylinder to open the second clamping part 12. The clamp 3 clamps the circuit board, and the unlocking device 53 releases the rotating block 132, and the positioning pin 133 is reinserted into the positioning slot 131. The second clamping device 52 releases the supporting fixture and drives the second clamping device 52 to move outward through the third driving device 54 to leave space for the movement of the supporting fixture. The first clamping device 51 is moved together with the supporting fixture clamped with the circuit board to the discharge assembly through the fourth driving device 8, and the supporting fixture clamped with the circuit board is placed in the discharge assembly through the pushing assembly 9, and is transmitted to the next process through the discharge assembly.

Claims

1. An adjustment mechanism for adjusting a circuit board support fixture, the circuit board support fixture comprising a clamping frame (1), the clamping frame (1) comprising a first clamping portion (11) for clamping a circuit board, a second clamping portion (12), and a telescopic structure for adjusting the distance between the first clamping portion (11) and the second clamping portion (12), the telescopic structure being provided with a locking device (13) for limiting the telescopic structure from being telescopic, the telescopic structure comprising a sleeve (21) provided on one of the first clamping portion (11) and the second clamping portion (12), and a connecting rod (22) provided on the other and capable of being inserted into the sleeve (21), the locking device (13) comprising a locking device provided on the connecting rod (22) A positioning slot (131) and a rotating block (132) hinged at one end on the sleeve (21); a positioning pin (133) capable of being inserted into the positioning slot (131) is provided at the other end of the rotating block (132); a first magnetic member (1321) is provided on the rotating block (132); a second magnetic member (211) capable of magnetically engaging with the first magnetic member (1321) is provided at a position corresponding to the first magnetic member (1321) on the sleeve (21); a liquid guide groove (212) and an air outlet (213) connected to the liquid guide groove (212) are provided on the sleeve (21); a row of clips (3) for clamping a circuit board are provided on both the first clamping portion (11) and the second clamping portion (12); and the characteristics are: The adjustment mechanism comprises a panel (4) and an adjustment assembly mounted on the panel (4) for adjusting the distance between the first clamping portion (11) and the second clamping portion (12), the adjustment assembly comprising a first clamping device (51) for clamping the first clamping portion (11), a second clamping device (52) for clamping the second clamping portion (12), an unlocking device (53) for pushing the positioning pin (133) out of the positioning groove (131), and a first adjustment device for adjusting the distance between the first clamping device (51) and the second clamping device (52); The adjustment mechanism also includes a feed assembly provided on both sides of the adjustment assembly and used for feeding the circuit board support fixture into the circuit board support fixture, and a discharge assembly provided for discharging the circuit board support fixture out of the circuit board support fixture. The feed assembly includes a first lower conveying roller group (61) provided on the panel (4) and a first upper guide roller group (62) provided above the first lower conveying roller group (61). The discharge assembly includes a second lower conveying roller group (71) provided on the panel (4) and a second upper guide roller group (72) provided above the second lower conveying roller group (71). The panel (4) is also provided with a fourth driving device (8) for moving the first clamping device (51) between the feed assembly and the discharge assembly, thereby enabling the first clamping device (51) to clamp or put down the circuit board support fixture. The first clamping device (51) is also provided with a pushing assembly (9) for lifting the circuit board support fixture so that the circuit board support fixture is separated from the first lower conveying roller group (61). The first clamping device (51) and the second clamping device (52) both comprise a mounting frame (511), a fixed plate (512) mounted on the mounting frame (511), a movable plate (513) slidably connected to the mounting frame (511), and a first driving device (514) mounted on the fixed plate (512) for driving the movable plate (513) to slide toward or away from the fixed plate (512) to thereby clamp or release the circuit board support fixture.

2. The adjusting mechanism for adjusting a circuit board support fixture according to claim 1, characterized in that: The mounting frame (511) is also provided with a rotating clamp (515) that can press the handle of the clamp (3) when rotating to thereby open the clamp (3), and a second driving device (516) that drives the rotating clamp (515) to rotate.

3. The adjusting mechanism for adjusting a circuit board support fixture according to claim 1, characterized in that: The unlocking device (53) includes a first cylinder, a telescopic rod of the first cylinder is provided with a push block (531) capable of lifting the rotating block (132), and the first adjusting device includes a third driving device (54) provided on the panel (4) for moving the second clamping device (52) away from or close to the first clamping device (51).

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