Manual edge grinding machine for printed circuit board

Abstract

The utility model provides a manual edge grinding machine for a printed circuit board, which belongs to the technical field of printed circuit boards and comprises a support assembly, a main connecting arm is arranged at the top of the front side of a base support frame, a fixing plate is arranged on the right side of the front side of the main connecting arm, and a first connecting support plate extending upwards is arranged on the side, close to the top, of the rear side of the fixing plate. A second connecting supporting plate is arranged on the left side of the front side of the main connecting arm, the power assembly comprises a power box arranged on the front side of the fixing plate, a driving wheel is arranged in the power box, identical driven wheels are arranged at the two ends of the front side of the first connecting supporting plate and the two ends of the front side of the second connecting supporting plate correspondingly, and a friction belt is arranged between the driving wheel and the three driven wheels; and a first mounting part is arranged on the left side of the main connecting arm, and the clamping assembly is arranged on the first mounting part, so that the problem that in the prior art, when defective products detected in the quality inspection process flow back to a production line, the defective products are mixed with original batches, and inconvenience is brought to subsequent batch management and quality traceability is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to printed circuit board technical field, specifically, relate to a printed circuit board manual edge grinding machine. BACKGROUND

[0002] Printed circuit board (PCB) as the core component of electronic product, its main role is in providing circuit connection and supporting component, ensure that the circuit component pin can be connected to each other, form stable working circuit, with the rapid development of electronic technology, the miniaturization, integration trend of PCB is more and more obvious, and higher requirements are put forward to production precision and quality.

[0003] In the production process of PCB, the existing printed circuit board edge grinding equipment is prone to produce defective products when processing, mainly showing that the edge is uneven, has burr etc., these problems are found in quality inspection process, and the unqualified circuit board needs to be sent back to the workshop for reprocessing, this process not only increases the production cost, but also prolongs the production cycle, more seriously, the reprocessed circuit board is mixed together with the original batch when returning to the production line, which brings great difficulty to subsequent batch management and quality traceability, therefore, it is urgent to provide an edge grinding machine for processing defective products to solve the problem in the quality inspection link. UTILITARIAN CONTENT

[0004] In order to make up for the above shortcomings, the utility model provides a printed circuit board manual edge grinding machine for solving the above problems.

[0005] The utility model is realized as follows:

[0006] A printed circuit board manual edge grinding machine, including support assembly, power assembly and clamping assembly, the support assembly includes base support frame, the front side top of base support frame is provided with main connecting arm, the front side right side of main connecting arm is provided with fixed plate, the rear side near the top side of fixed plate is provided with the first connecting branch board that extends upwards, the front side left side of main connecting arm is provided with the second connecting branch board, the power assembly includes the power box of setting in the front side of fixed plate, the power box is provided with driving wheel, the front side of first connecting branch board and the front side of second connecting branch board both ends are provided with same driven wheel, the driving wheel is provided with friction belt between three driven wheels, the left side of main connecting arm is provided with first mounting portion, the clamping assembly is set up on first mounting portion.

[0007] In the embodiment of the utility model, the main connecting arm is telescopic arm, including fixedly setting fixed square tube of the top front side of base support frame, the right side of square tube is provided with movable square tube, the front side of movable square tube is equipped with a plurality of limit hole, the front side of fixed square tube is provided with bolt on left side screw thread, bolt penetrates one of limit hole.

[0008] In the embodiment of the utility model, the power box further includes a rotating handle, the rotating shaft of the rotating handle is hinged to the inside of the power box, a first gear is arranged on the rotating shaft of the rotating handle, a second gear is arranged on the rotating shaft of the driving wheel, the first gear is engaged with the second gear.

[0009] In the embodiment of the utility model, the side surface of the power box and the intersection of the friction belt are provided with two movable grooves.

[0010] In the embodiment of the utility model, the front side of the second connecting plate is provided with a belt baffle in the vertical direction, the left side of the belt baffle is coplanar with the plane formed by the two driven wheels on the same side.

[0011] In the embodiment of the utility model, the clamping assembly includes a first connecting slide rod, a lock catch is arranged on the first mounting portion, the first connecting slide rod is slidingly arranged in the first mounting portion and is fixed by the lock catch, a second mounting portion is arranged on the front side of the left end of the first connecting slide rod.

[0012] In the embodiment of the utility model, the clamping assembly further includes a T-shaped connecting rod, a mounting seat and a clamping workbench, a hand screw rod is arranged on the second mounting portion, the T-shaped connecting rod is inserted into the second mounting portion and is fixed by the hand screw rod, a hinge seat is arranged at the bottom of the mounting seat, the T-shaped connecting rod is hinged to the hinge seat, an angle adjusting plate is arranged on one side of the hinge seat, and the clamping workbench is slidingly arranged on the top of the mounting seat in the left-right direction of the mounting seat.

[0013] In the embodiment of the utility model, the top of the clamping workbench is respectively provided with a fixed baffle and an elastic clamping plate, the fixed baffle is arranged on the top rear side of the clamping workbench, and the elastic clamping plate is arranged on the top front side of the clamping workbench.

[0014] In the embodiment of the utility model, the elastic clamping plate includes a fixed seat, a pull rod, a second baffle and a contact spring, the fixed seat is arranged on the top front side of the clamping workbench, the pull rod penetrates from the front side of the fixed seat, the second baffle is fixedly arranged at the rear end of the pull rod, and the contact spring is arranged between the second baffle and the fixed seat.

[0015] In the embodiment of the utility model, the bottom left end of main connecting arm is provided with integrated assembly, the integrated assembly includes mounting plate and dust collecting box, the mounting plate is arranged at the bottom left end of main connecting arm, the rear side of dust collecting box is provided with mounting groove, the mounting groove of dust collecting box is fixed through bolt with mounting plate.

[0016] The utility model discloses the beneficial effect is: main connecting arm designs as telescopic arm structure, through the sliding fit of fixed square tube and movable square tube and the location fixing of bolt, realizes the flexible adjustment of edge grinding distance, clamping workstation can rotate on the hinged seat through T type connecting rod, realizes angle adjustment, simultaneously, fixed baffle and elastic clamping plate are equipped on clamping workstation, realize quick clamping and fix, make printed circuit board can keep steady attitude in the polishing process, avoid the problem of uneven polishing caused by shaking or displacement, simultaneously, quick clamping function also improves work efficiency, reduces operation time, the design of dust collecting box effectively solves the dust pollution problem produced in the polishing process, keeps the clean environment of workshop, simultaneously, also reduces the secondary pollution risk of dust to equipment and printed circuit board, improves product quality. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme of the embodiment of the utility model, the following will be briefly introduced to the drawing needed to be used in the embodiment, should understand, the following drawings only show some embodiments of the utility model, therefore should not be regarded as the limitation to the scope, for ordinary skilled person in the art, under the premise of not paying creative labor, can also obtain other related drawings according to these drawings.

[0018] Figure 1 The structure schematic diagram of a printed circuit board manual edge grinding machine provided by the embodiment of the utility model is shown in the drawings.

[0019] Figure 2 For Figure 1 The enlarged view of A in the middle.

[0020] Figure 3 The structure schematic diagram of a clamping assembly provided by the embodiment of the utility model is shown in the drawings.

[0021] Figure 4 The structure schematic diagram of a support assembly in one angle provided by the embodiment of the utility model is shown in the drawings.

[0022] Figure 5 The structure schematic diagram of a support assembly in another angle provided by the embodiment of the utility model is shown in the drawings.

[0023] Figure 6 The structure schematic diagram of a power box provided by the embodiment of the utility model is shown in the drawings.

[0024] In the figure: 10, support assembly; 11, base support frame; 12, main connecting arm; 13, telescopic arm; 1301, fixed square tube; 1302, movable square tube; 14, fixed plate; 15, first connecting support plate; 16, second connecting support plate; 1601, first mounting portion; 20, power assembly; 21, power box; 2101, movable groove; 22, driving wheel; 2201, second gear; 23, rotating handle; 2301, first gear; 24, driven wheel; 25, friction belt; 30, clamping assembly; 31, first connecting sliding rod; 3101, second mounting portion; 32, T-shaped connecting rod; 33, mounting seat; 3301, angle adjusting plate; 34, clamping workbench; 3401, fixed baffle; 3402, elastic clamping plate; 34021, fixed seat; 34022, pull rod; 34023, second baffle; 34024, abutting spring; 40, belt baffle; 50, integrated assembly; 51, mounting plate; 52, dust collection box; 5201, mounting groove. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are some of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0026] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0027] As Figure 1As shown, the utility model provides a kind of printed circuit board manual edge grinding machine, including support assembly 10, power component 20 and clamping assembly 30, support assembly 10 includes base support frame 11, the front side top of base support frame 11 is provided with main connecting arm 12, the front side right side of main connecting arm 12 is provided with fixed plate 14, the rear side of fixed plate 14 is close to the side of top and is provided with the first connecting branch plate 15 extending upwards, the front side left side of main connecting arm 12 is provided with second connecting branch plate 16, power component 20 includes the power box 21 being set in the front side of fixed plate 14, and the drive wheel 22 is provided in power box 21, and the front side of first connecting branch plate 15 and the front side of second connecting branch plate 16 two ends are respectively provided with same driven wheel 24, and the friction belt 25 is arranged between drive wheel 22 and three driven wheels 24, and the left side of main connecting arm 12 is provided with first mounting portion 1601, and clamping assembly 30 is set on first mounting portion 1601, and when using, printed circuit board is fixed on clamping workbench 34, and clamping workbench 34 is slid to the position of contact with friction belt 25, at this time, drive wheel 22 is rotated by rotating handle 23, to make friction belt 25 polish the side edge of printed circuit board, and this manual edge grinding machine is convenient to carry out secondary processing to a small amount of edge grinding unqualified defective products in quality inspection process, to avoid the inconvenience caused to subsequent batch management and quality traceability after returning to production line.

[0028] As Figures 4-5 As shown, main connecting arm 12 is telescopic arm 13, including fixedly set in the top front side of base support frame 11 fixed square tube 1301, and the right side of square tube is slidably provided with movable square tube 1302, and a plurality of limiting holes are formed in the front side of movable square tube 1302, and the left side of the front side of fixed square tube 1301 is threadedly provided with bolt, and the bolt penetrates one of the limiting holes.

[0029] As Figure 6 As shown, power box 21 further includes rotating handle 23, the rotating shaft of rotating handle 23 is hinged in the inside of power box 21, first gear 2301 is arranged on the rotating shaft of rotating handle 23, and second gear 2201 is arranged on the rotating shaft of drive wheel 22, and first gear 2301 is engaged with second gear 2201.

[0030] In the embodiment, two movable grooves 2101 are formed at the intersection of the side surface of power box 21 and friction belt 25.

[0031] As Figure 5 As shown, the front side of second connecting branch plate 16 is provided with belt baffle 40 in vertical direction, and the left face of belt baffle 40 is coplanar with the plane formed by two driven wheels 24 on the same side.

[0032] As Figures 2-3As shown, the clamping assembly 30 includes a first connecting slide bar 31, a latch is provided on the first mounting part 1601, the first connecting slide bar 31 is slidably disposed in the first mounting part 1601 and fixed by the latch, and a second mounting part 3101 is provided on the front side of the left end of the first connecting slide bar 31.

[0033] In this embodiment, the clamping assembly 30 further includes a T-shaped connecting rod 32, a mounting base 33, and a clamping worktable 34. A hand-tightening screw is provided on the second mounting part 3101. The T-shaped connecting rod 32 is inserted into the second mounting part 3101 and fixed by the hand-tightening screw. A hinge seat is provided at the bottom of the mounting base 33. The T-shaped connecting rod 32 is hinged to the hinge seat. An angle adjustment plate 3301 is provided on one side of the hinge seat. The clamping worktable 34 is slidably disposed on the top of the mounting base 33 in the left-right direction.

[0034] like Figure 2 As shown, a fixed baffle 3401 and an elastic clamping plate 3402 are respectively provided on the top of the clamping worktable 34. The fixed baffle 3401 is provided on the rear side of the top of the clamping worktable 34, and the elastic clamping plate 3402 is provided on the front side of the top of the clamping worktable 34.

[0035] The elastic clamping plate 3402 includes a fixed base 34021, a pull rod 34022, a second baffle 34023, and a retaining spring 34024. The fixed base 34021 is set on the front side of the top of the clamping worktable 34. The pull rod 34022 passes through the front side of the fixed base 34021. The second baffle 34023 is fixedly set at the rear end of the pull rod 34022. The retaining spring 34024 is set between the second baffle 34023 and the fixed base 34021. By pulling the pull rod 34022, a clamping area can be quickly formed. The printed circuit board can be placed in it and then released to clamp and fix it. The number of defective sides of these defective products is relatively random. This quick clamping and fixing method makes it easy to quickly replace the edge that needs to be polished and increases work efficiency.

[0036] As a preferred embodiment, an integrated component 50 is provided at the bottom left end of the main connecting arm 12. The integrated component 50 includes a mounting plate 51 and a dust collection box 52. The mounting plate 51 is located at the bottom left end of the main connecting arm 12. A mounting groove 5201 is provided on the rear side of the dust collection box 52. The dust collection box 52 is fixed to the mounting plate 51 by bolts at the mounting groove 5201. The dust collection box 52 can collect friction debris, which helps to keep the workshop clean.

[0037] Specifically, the working principle of the printed circuit board manual edge grinding machine: when in use, manually pull the pull rod 34022, quickly fix the printed circuit board on the clamping workbench 34, and at the same time, push the clamping workbench 34 to approach the friction belt 25, at this time, manually rotate the rotating handle 23, so that the side edge of the printed circuit board is rubbed on the friction belt 25 to remove burrs, in this process, the contact force of the clamping workbench 34 to the friction belt 25 can be increased or decreased according to the specific situation of the printed circuit board, and the flexibility of processing is higher, through the above structure, the problem that the defective products detected in the quality inspection process are mixed with the original batch when returning to the production line, which brings inconvenience to the subsequent batch management and quality traceability is solved.

[0038] The above has further described the utility model with the help of specific embodiments, but it should be understood that the specific description here should not be understood as limiting the essence and scope of the utility model, and various modifications made by those skilled in the art after reading the above embodiments belong to the scope protected by the utility model.

Claims

1. A manual edge grinding machine for printed circuit boards, characterized in that, The assembly includes a support frame (10), a power assembly (20), and a clamping assembly (30). The support frame (10) includes a base support frame (11). A main connecting arm (12) is provided on the top front side of the base support frame (11). A fixing plate (14) is provided on the right side of the front side of the main connecting arm (12). A first connecting support plate (15) extending upward is provided on the rear side of the fixing plate (14) near the top. A second connecting support plate (16) is provided on the left side of the front side of the main connecting arm (12). The power assembly (20) includes a support frame (10), a power assembly (20), and a clamping assembly (30). The device includes a power box (21) located on the front side of the fixed plate (14), a drive wheel (22) is provided inside the power box (21), the same driven wheels (24) are provided at both ends of the front side of the first connecting support plate (15) and the front side of the second connecting support plate (16), a friction belt (25) is provided between the drive wheel (22) and the three driven wheels (24), a first mounting part (1601) is provided on the left side of the main connecting arm (12), and the clamping assembly (30) is provided on the first mounting part (1601).

2. The manual edge grinding machine for printed circuit boards according to claim 1, characterized in that, The main connecting arm (12) is a telescopic arm (13), including a fixed square tube (1301) fixedly installed on the top front side of the base support frame (11), a movable square tube (1302) slidably installed on the right side of the square tube, a number of limiting holes are opened on the front side of the movable square tube (1302), and a bolt is threaded on the left side of the front side of the fixed square tube (1301), and the bolt passes through one of the limiting holes.

3. The manual edge grinding machine for printed circuit boards according to claim 1, characterized in that, The power box (21) also includes a rotating handle (23), the rotating shaft of the rotating handle (23) is hinged inside the power box (21), a first gear (2301) is provided on the rotating shaft of the rotating handle (23), and a second gear (2201) is provided on the rotating shaft of the drive wheel (22), the first gear (2301) meshes with the second gear (2201).

4. A manual edge grinding machine for printed circuit boards according to claim 3, characterized in that, Two movable grooves (2101) are provided at the intersection of the side of the power box (21) and the friction belt (25).

5. A manual edge grinding machine for printed circuit boards according to claim 2, characterized in that, A belt baffle (40) is provided vertically on the front side of the second connecting support plate (16), and the left side of the belt baffle (40) is coplanar with the plane formed by the two driven wheels (24) on the same side.

6. A manual edge grinding machine for printed circuit boards according to claim 1, characterized in that, The clamping assembly (30) includes a first connecting slide rod (31), a latch is provided on the first mounting part (1601), the first connecting slide rod (31) is slidably disposed in the first mounting part (1601) and fixed by the latch, and a second mounting part (3101) is provided on the front side of the left end of the first connecting slide rod (31).

7. A manual edge grinding machine for printed circuit boards according to claim 6, characterized in that, The clamping assembly (30) further includes a T-shaped connecting rod (32), a mounting base (33), and a clamping worktable (34). A hand-tightening screw is provided on the second mounting part (3101). The T-shaped connecting rod (32) is inserted into the second mounting part (3101) and fixed by the hand-tightening screw. A hinge seat is provided at the bottom of the mounting base (33). The T-shaped connecting rod (32) is hinged to the hinge seat. An angle adjustment plate (3301) is provided on one side of the hinge seat. The clamping worktable (34) is slidably disposed on the top of the mounting base (33) in the left-right direction.

8. A manual edge grinding machine for printed circuit boards according to claim 7, characterized in that, The top of the clamping worktable (34) is provided with a fixed baffle (3401) and an elastic clamping plate (3402). The fixed baffle (3401) is located on the rear side of the top of the clamping worktable (34), and the elastic clamping plate (3402) is located on the front side of the top of the clamping worktable (34).

9. A manual edge grinding machine for printed circuit boards according to claim 8, characterized in that, The elastic clamping plate (3402) includes a fixed seat (34021), a pull rod (34022), a second baffle (34023), and an abutment spring (34024). The fixed seat (34021) is located on the front side of the top of the clamping worktable (34). The pull rod (34022) passes through the front side of the fixed seat (34021). The second baffle (34023) is fixedly located at the rear end of the pull rod (34022). The abutment spring (34024) is located between the second baffle (34023) and the fixed seat (34021).

10. A manual edge grinding machine for printed circuit boards according to claim 1, characterized in that, An integrated component (50) is provided at the bottom left end of the main connecting arm (12). The integrated component (50) includes a mounting plate (51) and a dust collection box (52). The mounting plate (51) is located at the bottom left end of the main connecting arm (12). A mounting groove (5201) is provided on the rear side of the dust collection box (52). The dust collection box (52) is fixed to the mounting plate (51) at the mounting groove (5201) by bolts.

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