TWI331495B - Press brake fixture for circuit board - Google Patents

Description

1331495 070678.TW 26179twf.doc/n IX. Description of the Invention: [Technical Field] The present invention relates to a folding device for a circuit board, and in particular to a simple folding plate fixture, which does not Stress is generated on the printed circuit surface of the board to prevent solder joint cracking to ensure product quality. [Prior Art] At present, it is conventionally known that the folding device of the circuit board cuts two corresponding V-shaped dividing lines on the front and back sides of the circuit board, and after the printed circuit and the electronic components thereon are assembled and soldered, Then, the hand is directly broken along the above-mentioned split line. However, the above-mentioned conventional method is lacking in that when the circuit board is directly folded by the hand, since the distance between the urging force and the resistance point is relatively large, a large bending deformation occurs on the surface of the circuit board, so the upper printing is performed. Circuits or solder joints are prone to cracking or poor contact due to flexural deformation of the board; in addition, when the method breaks the board, the fold lines are less tidy, resulting in a burr of the folded edge of the board, thus the product Poor quality. In addition, in order to protect the printed circuit or solder joint on the circuit board, the above-mentioned defects are improved. It is conventional to use an expensive vacuum folding device to fix the circuit board in a vacuum adsorption manner to avoid bending deformation of the circuit board. However, the cost of vacuum folding panels is high, and the machine is heavy, which is not conducive to maintenance and maintenance. SUMMARY OF THE INVENTION The present invention provides a folding board fixture for a circuit board, which can easily break the waste side of the circuit board without generating stress on the surface of the circuit board. To improve the quality of the product. The invention provides a folding plate fixture for a circuit board, which has a plate cutter uniformly distributed at a point of application to make the folded edge of the circuit board neat and beautiful.

The present invention provides a folding panel fixture for a circuit board comprising a rotating and movable base, a pressing mechanism and a folding mechanism. The rotating and movable base has a first platform, a rotating shaft and a second platform for sliding the first platform in a horizontal moving direction. The first platform is disposed on the second platform for placing a circuit board. The first platform is rotated by the rotating shaft, and the first platform is provided with a sliding slot and a plurality of rolling elements along the horizontal moving direction for the first platform to slide. The pressing mechanism has a first plate member and a first movable surface of the first plate member fixed to the circuit board. The flap mechanism has a second panel and a second movable means for cutting the waste side of the board from all sides of the second panel.

In the invention, in the embodiment, one end of the rotating shaft is locked in the first flat rotation ~, and the other end of the rotating shaft is fixed to the bottom surface of the platform through the sliding groove. Pressing the second embodiment of the present invention, the soft W is disposed in the second embodiment of the first plate, and the first movable device includes 1 - these -& regrets the first and the plurality of With the wheel; there is a second spring that generates two elastic forces, and these first-th-first spring-plates are used by the first cam to be 1331495 070678.TW 26179 twf.dc) dc / n in the present invention - a plurality of second movable devices arranged in the second convex red, including a second cam respectively having a second spring that generates an elastic force, wherein the second convex springs rise two (four) by the fourth wheel and In the red invention - in the embodiment, the fixed branch (four) supports the first cam 1 camshaft 'and more than four (four) to separate the springs and the second springs. In an embodiment of the invention, the second platform is further provided with a waste discharge opening located below the flap mechanism. In an embodiment of the invention, the second platform further has at least one portion that blocks the first platform from a horizontal movement to a critical position. Further, the side of the first platform is provided with at least one recess relative to the stop for limiting the first platform to a critical position. In an embodiment of the invention, the cut surface of the second plate is beveled or

surface. The invention adopts a simple folding plate fixture, and the application point is evenly dispersed, and the waste side of the circuit board can be quickly broken, and no stress is generated on the printed circuit surface of the circuit board, and the solder joint crack can be prevented, thereby improving The quality of the product. The above described features and advantages of the present invention will become more apparent from the following description. Embodiments Referring to the embodiment of FIG. 1 , the rotation of the folding fixture 100 of the circuit board 8 1331495 070678. TW 26179 twf.doc / n and the movable base 110 include a first platform 120 : a rotating shaft l3 〇 first platform The second half X sliding along a horizontal movement direction D and the first platform 120 are disposed on the second platform 140 for disposing a second platform 140 along the horizontal movement direction D - a sliding slot i42 A plurality of rolling elements 144 are slidable for the first platform 120. (C) In the present embodiment, the first stage 12'' has a center of rotation C, and one end of the rotating shaft 130 is fixed to the lower side of the first stage 12'' by a screw or other lock passing through the center of rotation C. The other end of the rotating shaft 13A is fixed to the bottom surface of the second stage 14A by the sliding groove 142. Thus, the second = stage 120 can be rotated by the rotation axis 13 〇 to adjust the edge of the board to the front of the first stage 120 to perform the folding (de-scraping) operation. Referring to the embodiment of FIG. 1 , in order to allow the first platform 12 to smoothly slide along the horizontal movement direction D, the second platform 12 is provided with a plurality of pockets B on both sides of the sliding slot 142. For these rolling elements (4) in each

Since the ball m rolls 'like a linear ball bearing _, so when the Tian ping σ I20 is insulted on these rolling elements 144, the friction can be reduced by the rolling element 144, thereby increasing the first platform 120 relative to the second The sliding force of the platform 140. In the above description, the first platform 12 is used to place a circuit board. Please refer to: ^Cut: good picture 'board 1〇 can be finished printing and soldering M. Printed circuit on protective circuit board 10 and soldered piece 12' specially made component template 20 with cavity 22, Wu Ba, position and size and the electronic component I2 on the circuit board 10 are exactly 9 1331495 070678. TW 26179 twf.doc/n so that each electronic component 12 can lie flat in each of the vertices 22 without being affected by Occupational pressure or bending deformation. More specifically, the component template 2 can be ejected by an engraving machine; each of the cavities 22 on the template 2G and a plurality of matching holes on the first-flat 12〇, and the matching holes and the flat The through holes 122 on the σ 120 correspond to each other, and the element template 20 can be fixed by screwing. The cavity 2G can be replaced for different layouts of the board. Next, please refer to the movement of the first platform m along the horizontal movement direction D, and at the critical position, the second flat portion. There are a plurality of stop portions such as a slap or a collision column. Blocking the first platform 120 to advance 'may prevent the first platform 12 () from sliding or arbitrarily rotating. In an embodiment, please refer to the partial schematic shown in FIG. 3, the side of the first platform i 2 ( (relative to The position of the stopping portion 146 can be further provided with a plurality of recesses 124' for accommodating the retaining portions 146, and the first platform 1 can be arbitrarily miscellaneous and/or rotated as in the critical position to facilitate folding. The operation of the board is carried out. ^The following is a description of the pressing mechanism of the folding plate fixture 15〇 and the folding plate mechanism. In May, referring to FIG. 1 and FIG. 4', FIG. 4 is the waste mechanism 150 and the folding plate mechanism 17 of FIG. A side view of the crucible. The pressing mechanism has a first plate member 152 and a first movable device 16 that fixes the pressing surface of the first plate member 152 to the circuit. The bottom surface of the first plate member 152 is lower. Pressing surface = 2a, on which a soft spacer 154 can be disposed, and the first panel 丨 52 is pre-prepared by the first movable device 160 The fixed position is raised or lowered. The first moving cam 160 includes a first cam shaft 162, a plurality of first cams 164 arranged on the first cam 1331495 070678.TW 26179twf.doc/n axis 162, and a plurality of A first spring 166 is generated as the first cam i64 rotates. The first cam shaft 162 and the first cam 164 are located above the first plate 152, which can be manually controlled by the handle (10) The direction of rotation causes the first cam 164 to rotate with the first cam shaft 162. The first cam 64 arranged on the first cam shaft 162 is in contact with the upper surface of the first plate 152 with its paraboloid P1' It changes the position of the first plate member 152 by the stroke change of the major axis/minor axis of the paraboloid P1. Further, the first spring 166 which generates a force as the first cam 164 rotates is disposed on the first plate member 152. Below, it expands or compresses in accordance with the stroke change of the first cam 164. Thus two: the ST rises or falls by the force between the first cam 164 and the first spring 166. Next, the flap mechanism 170 has - The second plate member 172 and the cut surface of the plate member 2 are cut The waste side of the circuit board ^. The bottom surface of the second plate member m section 172a, for example,

Figure 3) - or plane, the second plate member m can be raised or lowered at a predetermined cutting position by the second movable device (10). Like the first-position function and configuration, the second movable device (10) includes a second cam; a second cam 184 (=) that is arranged on the second cam shaft 182 and has a second cam 184 == the first rotation to generate an elastic force. The second camshaft 2 and the cam- 184 check position handle 188 are manually controlled == two and the second cam 184 is rotated with the second camshaft 182 = the first on the cam-shaft 182 The two cams 184 are in contact with the upper surface of the second plate member 172 of the 1331495 070678.TW 26l79 twf.doc/n, and the second plate is changed by the stroke of the major axis/minor axis of the paraboloid p2. The location of piece 172. Further, the second spring 186 which generates an elastic force as the second cam 184 rotates is disposed below the second plate member 172, which is extended or compressed in accordance with the stroke change of the second cam 184. Thus, the second plate member 172 can be raised or lowered by the second cam 184 and the second spring 186 described above.

In addition, in this embodiment, the fixing bracket is an opposite two bracket 174, and (7)' is disposed on the second platform 14A for supporting the first camshaft and the second camshaft 182 between the two brackets 174, 176. And a plurality of fixings 178a, 178b are vertically disposed on the second platform 14A for respectively passing the first spring 166 and the second spring 186 to keep the spring extended or compressed in a predetermined vertical direction. f The following describes the folding plate fixture of the board. The operation of breaking the waste side of the board is smuggled. First, the circuit board 1 is fixed to the first stage 120 by the component template to perform the folding operation of the circuit board. Then, the first platform is moved forward along the sliding groove 142 of the second platform 14〇 to the folding plate position. At this time, the pressing mechanism 15〇 and the folding mechanism 17〇 are located above the circuit board, but the pair is not The board is under pressure. Then, the first plate member 152 of the pressing mechanism 150 is firstly driven by the first cam 164 to be pressed on the blank area of the circuit board 10 where the electronic component is not disposed. Further, the pressing surface 152a of the first plate member 152 is configured to be soft. The spacer 154 is, for example, a protective material for preventing scratching or electrical resistance of the circuit board 10, which can buffer the applied stress of the first board member 152 to the circuit board 10. Thereafter, the second plate member 172 (or the plate cutter) of the folding plate mechanism is driven by the second cam 184 to uniformly contact the waste side 14 of the circuit board 10 downwardly and 12 31 3113495 070678. TW 26179 twf. Its section 172a neatly breaks the waste side 14. Since the cut surface n2a of the second plate member 172 is parallel with the waste side 14 of the circuit board, the force application points are evenly dispersed. In addition, the distance between the point of application and the point of resistance is short, so that there is a phenomenon that a large bending deformation occurs on the surface of the circuit board or a broken line is generated when the circuit board is broken, thereby causing a fold line of the circuit board (for example, ¥ The type dividing line or the stamp hole center line is neat. The waste side 14 of the circuit board 10 is broken by the flap mechanism 170. Thereafter, it can be discharged through the waste discharge opening 148 on the lower second stage 140 for proper disposal. As described above, after the folding operation of the front side of the circuit board 1 is completed, the circuit board 10 is ejected backward, and the circuit board 1 is rotated by 90 degrees with respect to the rotating shaft 130 by the first stage 12, so that The other side of the circuit board 1 turns to face the flap mechanism 170. The subsequent folding operation is as described above, and the other waste side of the circuit board 10 is pressed, broken, withdrawn, rotated, etc. until all the waste edges have been broken. • In summary, the folding board fixture of the circuit board of the present invention has the advantages of simple operation, low cost, simple structure, light weight, and no space occupation, and can quickly break the waste side of the circuit board without Stress is generated on the surface of the board to prevent solder joint cracking to ensure product quality. In addition, the application points of the cut faces of the second plate member (or the plate cutter) are evenly distributed, so that the circuit board can be neat and beautiful. The present invention has been disclosed in the above preferred embodiments, and it is not intended to limit the scope of the invention, and it is possible to make a few changes without departing from the spirit and scope of the invention. The scope of protection of the present invention is therefore defined by the scope of the appended claims, 13 1331495 070678.TW 26179 twf.doc/n. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic view of a folding jig of a circuit board according to an embodiment of the present invention. Fig. 2 is a cross-sectional view showing a folding jig of a circuit board according to an embodiment of the present invention.

Figure 3 is a partial schematic view of another embodiment of the present invention. Figure 4 is a side elevational view of the pressing mechanism and flap mechanism of Figure 1. [Description of main component symbols] 10: Circuit board 12: Electronic component 14: Waste side 20: Component template 22: Cavity 100: Folding fixture of circuit board 110: Rotating and movable base 120 · First platform 122: Through hole 124: recess 130: rotating shaft 140: second platform 142: sliding groove 144: rolling element 14 1331495

070678 .TW 26179twf.doc/n 146 : Stop 148 : waste discharge hole 150 : pressing mechanism 152 : first plate 152 a : lower pressing surface 154 : soft spacer 160 : first movable device 162 : first cam shaft 164: first cam 166: first spring 168: handle 170: flap mechanism 172: second plate 172a: cut surface 174, 176: bracket 178a, 178b: fixed post 180 second movable device 182 second cam shaft 184 Two cams 186 Second spring 188 Handle B: Ball six C: Center of rotation D: Horizontal movement direction PI, P2: Paraboloid 15

Claims (1)

07067S.TW 26179twf.doc/n X. Patent application scope: 1. A folding plate fixture for a circuit board, comprising: - a rotating and living seat H-platform, - rotary pumping and ', the first platform along a a second platform sliding in a horizontal moving direction, wherein the first platform is disposed on the second platform for placing a circuit board, / the flat 0 is rotated by the rotating shaft, and the second platform is moved along the horizontal direction a sliding groove is provided for the one shaft member for sliding the platform; the β-pressing mechanism has a first plate member and a first plate for fixing the lower pressing surface of the first plate member to the circuit board a movable device; and a flap mechanism having a second panel and a second movable device that causes the entire surface of the second panel to cut off the waste side of the circuit board. 2. The folding plate fixture of the circuit board according to item 1 of the patent application scope, wherein the twisted end is at the center of rotation of the first platform, and the other end of the surface rotating shaft passes through The sliding groove is fixed to the bottom of the second platform. 3. The folding plate fixture of the circuit board according to the item i of the patent scope, "t the circuit board is set on the first platform by the component mold (4) ^ 4 · The circuit (4) Folding fixture as described in item 1 of the patent application, and further including a soft cymbal, disposed on the lower pressing surface of the first plate. 5·=Requesting a patent The folding device of the circuit board of the present invention, wherein the first living device comprises a first camshaft, a plurality of first cams arranged on the third axle, and a plurality of first cams The first spring that rotates the elastic force, the first cams have a parabolic eve:) 丄咔 : :) 070678.TW 26179twf.d〇c/n 升 or A wrong by the first 凸And a folding plate fixture of the circuit board on the first spring, a camshaft on the two camshafts, a camshaft, and a plurality of elastic threads arranged in the first The first plate is raised or lowered with the rotation of the second cams; the first plate member is formed by the second cams and the second springs, such as the circuit board according to claim 5 or 6 of the patent scope The folding plate further includes a bracket for supporting the first cam and the second cam shaft, and (4) a plurality of fixing posts for each of the springs and the springs. 8. As claimed in claim 1 The folding plate fixture of the circuit board, ', the cutting surface of the second plate member is a slope or a plane. 1 9 The folding plate fixture of the circuit board according to the first claim of the patent scope, 3_the second platform The utility model is further provided with a venting hole, which is located in the folding plate mechanism, and the folding plate of the circuit board according to the first aspect of the patent application, wherein the second platform further has at least one stopping portion, Blocking the first platform along the horizontal moving direction to a critical position. And 11. The folding plate of the circuit board according to claim 10, wherein the side of the first platform is opposite to the stopping portion At least one concave eight is provided to limit the first platform to the critical position.