PCB (Printed Circuit Board) splitting base jig

Abstract

The utility model belongs to the technical field of PCB (printed circuit board) production, in particular to a PCB splitting base jig, which comprises a jig base and a positioning bulge, a placing groove for placing a PCB is processed on the jig base, the positioning bulge is fixed in the placing groove and corresponds to a reserved positioning hole on the PCB, and the positioning bulge is fixed on the jig base. The section of the positioning bulge is of a trapezoidal structure with a narrow upper part and a wide lower part; according to the utility model, the cross section of the positioning projection is of a trapezoidal structure with a narrow upper part and a wide lower part, so that the PCB can be conveniently placed, the stability of the PCB can be improved, the slippage of the PCB during board separation is avoided, the safety of components is improved, and the stress influence is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of PCB production, and in particular relates to a PCB board separation base fixture. Background Art

[0002] PCB, whose Chinese name is printed circuit board, also known as printed circuit board, printed circuit board, is an important electronic component, a support for electronic components, and a provider of electrical connections for electronic components.

[0003] During the production and processing of PCB boards, many processes require the use of fixtures to ensure the stability and processing accuracy of the PCB boards.

[0004] There are 10 main ways to depanel PCBs, namely, knife cutting depaneling, drilling depaneling, milling depaneling, stamping depaneling, laser depaneling, manual depaneling, knife-type depaneling, milling cutter depaneling, saw blade depaneling, and punching depaneling.

[0005] Generally, positioning holes are reserved on the PCB board, and positioning protrusions are set on the fixture base according to the positions of the positioning holes to accurately position the PCB board.

[0006] In actual production, in order to facilitate the placement of the board, the size of the protrusion on the base that plays a positioning role is often set to be smaller than the size of the positioning hole on the PCB board. For example, if the width of the positioning hole is 1mm, the width of the protrusion is set to 0.8mm. This makes the PCB board easy to move, which can easily damage components and be affected by stress when separating the boards.

[0007] In order to solve the above problems, this application proposes a PCB depaneling base fixture. Utility Model Content

[0008] In order to solve the above problems existing in the prior art, the utility model provides a PCB depaneling base fixture, which has the characteristics of easy use, high stability and high safety performance.

[0009] To achieve the above-mentioned object, the present invention provides the following technical solution: a PCB depaneling base jig, comprising a jig base, on which a placement groove for placing a PCB board is processed, and further comprising:

[0010] A positioning protrusion is fixed in the placement groove and corresponds to a reserved positioning hole on the PCB board, and the cross section of the positioning protrusion is a trapezoidal structure that is narrow at the top and wide at the bottom.

[0011] As a preferred technical solution of the utility model, it also includes:

[0012] The limiting flip cover is flipably mounted on one end of the fixture base, and a board separation hole is processed on the limiting flip cover at a position corresponding to the PCB board separation.

[0013] As a preferred technical solution of the utility model, it also includes:

[0014] A No. 1 bearing seat, two of which are symmetrically fixed to one end of the fixture base;

[0015] A No. 1 mounting shaft, the No. 1 mounting shaft being fixed to the outer wall of the position-limiting flip cover and being rotatably connected to the No. 1 bearing seat via a bearing;

[0016] A No. 1 driving mechanism is drivably connected to the No. 1 mounting shaft and is used to drive the No. 1 mounting shaft to rotate.

[0017] As a preferred technical solution of the present invention, the first drive mechanism includes:

[0018] A number one vertical cylinder, the number one vertical cylinder being fixed to the top surface of the fixture base;

[0019] A first inverted L-shaped mounting plate, the first inverted L-shaped mounting plate being fixed to the top end of the piston rod of the first vertical cylinder;

[0020] A first fixing plate, the first fixing plate being fixed to the outer wall of the vertical portion of the first inverted L-shaped mounting plate;

[0021] A first rack, the first rack being fixed to the outer wall of the first fixing plate;

[0022] A number one gear is fixed on the number one mounting shaft and meshes with the number one rack.

[0023] As a preferred technical solution of the utility model, it also includes:

[0024] The limiting pressure plate is flipably mounted on an end of the fixture base away from the limiting flip cover, and when the limiting pressure plate flips to a horizontal state, it presses down the free end of the limiting flip cover.

[0025] As a preferred technical solution of the utility model, it also includes:

[0026] No. 2 bearing seats, two of which are symmetrically fixed to the end of the fixture base away from the limiting flip cover;

[0027] A second mounting shaft, the second mounting shaft being rotatably mounted between the two second bearing seats by means of a bearing, the limiting pressure plate being fixed on the second mounting shaft;

[0028] A No. 2 driving mechanism is drivably connected to the No. 2 mounting shaft and is used to drive the No. 2 mounting shaft to rotate.

[0029] As a preferred technical solution of the present invention, the second drive mechanism includes:

[0030] A second vertical cylinder, the second vertical cylinder being fixed to the top surface of the fixture base;

[0031] A second inverted L-shaped mounting plate, the second inverted L-shaped mounting plate being fixed to the top end of the piston rod of the second vertical cylinder;

[0032] A second fixing plate, the second fixing plate being fixed to the outer wall of the vertical portion of the second inverted L-shaped mounting plate;

[0033] A second rack, the second rack being fixed to the outer wall of the second fixing plate;

[0034] A second gear is fixed on the second mounting shaft and meshes with the second rack.

[0035] As a preferred technical solution of the utility model, it also includes:

[0036] A rubber pad is bonded and fixed to the outer wall of the limiting pressure plate, and when the limiting pressure plate is flipped to a horizontal state, the rubber pad presses down the free end of the limiting flip cover.

[0037] Compared with the prior art, the beneficial effects of the present invention are:

[0038] In the present invention, the cross-section of the positioning protrusion is a trapezoidal structure that is narrow at the top and wide at the bottom, which can not only ensure the convenience of placing the board, but also improve the stability of the PCB board, avoid the PCB board from slipping when the board is separated, improve the safety of components, and avoid the influence of stress.

[0039] Other additional advantages and benefits of the present application will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0041] Figure 1 It is a structural diagram of the utility model;

[0042] Figure 2 This is a schematic diagram of the axonometric structure of the positioning protrusion in the present utility model;

[0043] Figure 3 For this utility model Figure 1 A schematic diagram of the enlarged structure of the No. 1 driving mechanism;

[0044] Figure 4 For this utility model Figure 1 A schematic diagram of the enlarged structure of the No. 2 driving mechanism;

[0045] Figure 5 For this utility model Figure 1 A in the figure is an enlarged structural diagram.

[0046] In the figure: 1. Fixture base; 11. Placement groove; 2. Positioning protrusion; 3. Limiting flap; 31. Dividing plate hole; 4. Bearing seat No. 1; 5. Mounting shaft No. 1; 6. Limiting pressure plate; 61. Rubber gasket; 7. Bearing seat No. 2; 8. Mounting shaft No. 2; 9. Driving mechanism No. 1; 91. Vertical cylinder No. 1; 92. Inverted L-shaped mounting plate No. 1; 93. Fixed plate No. 1; 94. Rack No. 1; 95. Gear No. 1; 10. Driving mechanism No. 2; 101. Vertical cylinder No. 2; 102. Inverted L-shaped mounting plate No. 2; 103. Fixed plate No. 2; 104. Rack No. 2; 105. Gear No. 2. DETAILED DESCRIPTION

[0047] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0048] See also Figure 1-Figure 5 The utility model provides the following technical solutions: a PCB board separation base fixture, including a fixture base 1, a placement groove 11 for placing the PCB board is processed on the fixture base 1, and also includes: a positioning protrusion 2.

[0049] Further, by Figure 1 and Figure 2 As shown, in this embodiment, the positioning protrusion 2 is fixed in the placement groove 11 and corresponds to the reserved positioning hole on the PCB board, and the cross-section of the positioning protrusion 2 is a trapezoidal structure that is narrow at the top and wide at the bottom. After adopting the above scheme, when in use, the PCB board is placed in the placement groove 11, and the positioning protrusion 2 passes through the reserved positioning hole on the PCB board to position the PCB board and ensure the stability of the PCB board during the board separation process.

[0050] In the present invention, the cross-section of the positioning protrusion 2 is a trapezoidal structure that is narrow at the top and wide at the bottom. Taking the 1mm positioning hole on the PCB board as an example, the upper end of the positioning protrusion 2 can be set to 0.3mm, the lower end can be set to 0.95mm, and the thickness is 1mm-1.6mm. After the positioning protrusion 2 passes through the positioning hole, the outer wall of the positioning protrusion 2 basically abuts against the inner wall of the positioning hole, which can not only ensure the convenience of placing the board, but also improve the stability of the PCB board, avoid the PCB board from slipping when the board is separated, improve the safety of components, and avoid the influence of stress.

[0051] It should be noted that the size of the above-mentioned positioning protrusion 2 is an exemplary introduction based on the actual processing scenario. Ideally, the optimal design is that the width of the lower end of the positioning protrusion 2 is equal to the width of the positioning hole, but the processing is more difficult. Therefore, the width of the lower end of the positioning protrusion 2 can be slightly smaller than the width of the positioning hole reserved on the PCB board.

[0052] In addition, in theory, this solution can also be implemented when the width of the lower end of the positioning protrusion 2 is greater than the width of the positioning hole. However, in this case, the PCB board will be in a suspended state after being placed, which can easily cause damage to the PCB board during board separation. It is necessary to add a supporting structure under the PCB board, which is more troublesome and the thickness of the supporting structure is difficult to determine.

[0053] Preferably, by Figure 1 As shown, in this embodiment, it also includes: a limiting flap 3, which is flipably mounted on one end of the fixture base 1, and a board separation hole 31 is processed on the limiting flap 3 at the position corresponding to the PCB board separation. After adopting the above scheme, the limiting flap 3 is closed after the PCB board is placed, and the limiting flap 3 is used to limit the PCB board, which can further improve the stability of the PCB board. The board separation hole 31 is used to locate the board separation position of the PCB board.

[0054] It should be noted that, as can be seen from the figure, the board separation hole 31 is a square hole. This is only an exemplary solution of the present invention. In actual production and processing, the shape of the board separation hole 31 needs to be designed according to the actual shape of the PCB board.

[0055] Optionally, by Figure 1 As shown, in this embodiment, it also includes: a No. 1 bearing seat 4, a No. 1 mounting shaft 5 and a No. 1 driving mechanism 9. The two No. 1 bearing seats 4 are symmetrically fixed to one end of the fixture base 1, the No. 1 mounting shaft 5 is fixed to the outer wall of the limit flap 3, and the No. 1 mounting shaft 5 is rotatably connected to the No. 1 bearing seat 4 by means of a bearing. The No. 1 driving mechanism 9 is drivably connected to the No. 1 mounting shaft 5 and is used to drive the No. 1 mounting shaft 5 to rotate. After adopting the above scheme, the No. 1 driving mechanism 9 drives the No. 1 mounting shaft 5 to rotate, so that the limit flap 3 can be flipped over, which is used to automatically open or close the limit flap 3.

[0056] Optionally, by Figure 1 and Figure 3 As shown, in this embodiment, the No. 1 driving mechanism 9 includes: a No. 1 vertical cylinder 91, a No. 1 inverted L-shaped mounting plate 92, a No. 1 fixed plate 93, a No. 1 rack 94 and a No. 1 gear 95. The No. 1 vertical cylinder 91 is fixed to the top surface of the fixture base 1, the No. 1 inverted L-shaped mounting plate 92 is fixed to the top of the piston rod of the No. 1 vertical cylinder 91, the No. 1 fixed plate 93 is fixed to the outer wall of the vertical portion of the No. 1 inverted L-shaped mounting plate 92, and the No. 1 rack 94 is fixed to the outer wall of the No. 1 fixed plate 93. Wall, No. 1 gear 95 is fixed on No. 1 mounting shaft 5 and meshes with No. 1 rack 94. After adopting the above scheme, when in use, start No. 1 vertical cylinder 91 to drive No. 1 inverted L-shaped mounting plate 92 to move in the vertical direction, and No. 1 inverted L-shaped mounting plate 92 uses No. 1 fixed plate 93 to drive No. 1 rack 94 to move in the vertical direction. Under the meshing action, No. 1 rack 94 drives No. 1 gear 95 to rotate, and No. 1 gear 95 drives the limit flip cover 3 to flip through No. 1 mounting shaft 5.

[0057] Preferably, by Figure 1 As shown, this embodiment also includes: a limiting pressure plate 6, which is flipably installed on the end of the fixture base 1 away from the limiting flap 3, and when the limiting pressure plate 6 is flipped to a horizontal state, it presses down the free end of the limiting flap 3. After adopting the above scheme, after the limiting flap 3 is closed, the limiting pressure plate 6 is rotated, and the limiting pressure plate 6 is used to press down the free end of the limiting flap 3, which can further improve the stability and safety of the limiting flap 3 after closing.

[0058] Optionally, by Figure 1 As shown, in this embodiment, it also includes: a No. 2 bearing seat 7, a No. 2 mounting shaft 8 and a No. 2 driving mechanism 10. The two No. 2 bearing seats 7 are symmetrically fixed to the end of the fixture base 1 away from the limit flip cover 3. The No. 2 mounting shaft 8 is rotatably installed between the two No. 2 bearing seats 7 using bearings. The limit pressure plate 6 is fixed on the No. 2 mounting shaft 8. The No. 2 driving mechanism 10 is drivably connected to the No. 2 mounting shaft 8 and is used to drive the No. 2 mounting shaft 8 to rotate. After adopting the above scheme, the No. 2 driving mechanism 10 drives the No. 2 mounting shaft 8 to rotate, so that the limit pressure plate 6 can be flipped over to automatically open or close the limit pressure plate 6.

[0059] Optionally, by Figure 1 and Figure 4As shown, in this embodiment, the second driving mechanism 10 includes: a second vertical cylinder 101, a second inverted L-shaped mounting plate 102, a second fixed plate 103, a second rack 104 and a second gear 105. The second vertical cylinder 101 is fixed to the top surface of the fixture base 1, the second inverted L-shaped mounting plate 102 is fixed to the top of the piston rod of the second vertical cylinder 101, the second fixed plate 103 is fixed to the outer wall of the vertical portion of the second inverted L-shaped mounting plate 102, and the second rack 104 is fixed to the second fixed plate 103. The outer wall of the gear 105 is fixed on the No. 2 mounting shaft 8 and meshes with the No. 2 rack 104. After adopting the above scheme, when in use, the No. 2 vertical cylinder 101 is started to drive the No. 2 inverted L-shaped mounting plate 102 to move in the vertical direction. The No. 2 inverted L-shaped mounting plate 102 uses the No. 2 fixed plate 103 to drive the No. 2 rack 104 to move in the vertical direction. Under the meshing action, the No. 2 rack 104 drives the No. 2 gear 105 to rotate, and the No. 2 gear 105 drives the limit pressure plate 6 to flip through the No. 2 mounting shaft 8.

[0060] Preferably, by Figure 1 and Figure 5 As shown, in this embodiment, it also includes: a rubber pad 61, which is bonded and fixed to the outer wall of the limiting pressure plate 6, and when the limiting pressure plate 6 is flipped to a horizontal state, the rubber pad 61 presses down the free end of the limiting flip cover 3. After adopting the above scheme, the rubber pad 61 is flexible, which prevents the limiting pressure plate 6 from rigidly colliding with the limiting flip cover 3 when it is flipped to a horizontal state, causing mechanical damage or noise.

[0061] It should be noted that the No. 1 vertical cylinder 91 and the No. 2 vertical cylinder 101 are both conventional commercially available equipment with built-in power switches. Those skilled in the art can make conventional selections based on usage needs. Their working principles are common knowledge known to those skilled in the art and have been fully disclosed by the prior art, so they will not be elaborated on in this article.

[0062] The circuit connection involved in the present invention is a common means used by those skilled in the art, and technical inspiration can be obtained through a limited number of experiments, and it belongs to the widely used existing technology.

[0063] Components not described in detail herein are prior art.

[0064] Working principle and use process of the utility model: When using the PCB board separation base fixture of the utility model, the PCB board is placed in the placement groove 11, and the positioning protrusion 2 is passed through the reserved positioning hole on the PCB board to position the PCB board and ensure the stability of the PCB board during the board separation process;

[0065] The cross section of the positioning protrusion 2 of the present invention is a trapezoidal structure that is narrow at the top and wide at the bottom. This not only ensures convenient board placement, but also improves the stability of the PCB board, prevents the PCB board from slipping during board separation, improves the safety of components, and avoids stress effects.

[0066] In addition, after the PCB board is placed, the limit flap 3 is closed and the PCB board is limited by the limit flap 3. After the limit flap 3 is closed, the limit pressure plate 6 is rotated and the free end of the limit flap 3 is pressed down by the limit pressure plate 6, which can further improve the stability and safety of the limit flap 3 after closing, thereby further improving the stability of the PCB board and improving the stability and safety of the PCB board when separating the boards.

[0067] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A PCB depaneling base jig, comprising a jig base (1), wherein a placement groove (11) for placing a PCB board is processed on the jig base (1), characterized in that: Also includes: A positioning protrusion (2) is fixed in the placement groove (11) and corresponds to a reserved positioning hole on the PCB board, and the cross section of the positioning protrusion (2) is a trapezoidal structure that is narrow at the top and wide at the bottom.

2. The PCB depaneling base fixture according to claim 1, characterized in that: Also includes: A limiting flip cover (3) is flipably mounted on one end of the fixture base (1), and a board splitting hole (31) is machined on the limiting flip cover (3) at a position corresponding to the PCB board splitting.

3. The PCB depaneling base fixture according to claim 2, characterized in that: Also includes: A No. 1 bearing seat (4), wherein two No. 1 bearing seats (4) are symmetrically fixed to one end of the fixture base (1); A No. 1 mounting shaft (5), the No. 1 mounting shaft (5) being fixed to the outer wall of the position-limiting flip cover (3), and the No. 1 mounting shaft (5) being rotatably connected to the No. 1 bearing seat (4) by means of a bearing; A No. 1 driving mechanism (9), the No. 1 driving mechanism (9) is drivably connected to the No. 1 mounting shaft (5) and is used to drive the No. 1 mounting shaft (5) to rotate.

4. The PCB depaneling base fixture according to claim 3, characterized in that: The first driving mechanism (9) comprises: A number one vertical cylinder (91), the number one vertical cylinder (91) being fixed to the top surface of the fixture base (1); A first inverted L-shaped mounting plate (92), the first inverted L-shaped mounting plate (92) being fixed to the top end of the piston rod of the first vertical cylinder (91); A first fixing plate (93), the first fixing plate (93) being fixed to the outer wall of the vertical portion of the first inverted L-shaped mounting plate (92); A number one rack (94), the number one rack (94) being fixed to the outer wall of the number one fixing plate (93); A number one gear (95), the number one gear (95) is fixed on the number one mounting shaft (5) and meshes with the number one rack (94).

5. The PCB depaneling base fixture according to claim 2, characterized in that: Also includes: A limiting pressure plate (6) is flipably mounted on an end of the fixture base (1) away from the limiting flap (3), and when the limiting pressure plate (6) flips to a horizontal state, it presses down the free end of the limiting flap (3).

6. The PCB depaneling base fixture according to claim 5, characterized in that: Also includes: No. 2 bearing seats (7), wherein the two No. 2 bearing seats (7) are symmetrically fixed to one end of the fixture base (1) away from the limiting flap (3); A No. 2 mounting shaft (8), the No. 2 mounting shaft (8) being rotatably mounted between the two No. 2 bearing seats (7) by means of a bearing, and the limiting pressure plate (6) being fixed on the No. 2 mounting shaft (8); A No. 2 driving mechanism (10), the No. 2 driving mechanism (10) is drivably connected to the No. 2 mounting shaft (8) and is used to drive the No. 2 mounting shaft (8) to rotate.

7. The PCB depaneling base fixture according to claim 6, characterized in that: The second driving mechanism (10) comprises: A second vertical cylinder (101), the second vertical cylinder (101) being fixed to the top surface of the fixture base (1); A second inverted L-shaped mounting plate (102), the second inverted L-shaped mounting plate (102) being fixed to the top end of the piston rod of the second vertical cylinder (101); A second fixing plate (103), the second fixing plate (103) being fixed to the outer wall of the vertical portion of the second inverted L-shaped mounting plate (102); A second rack (104), the second rack (104) being fixed to the outer wall of the second fixing plate (103); A second gear (105) is fixed on the second mounting shaft (8) and meshes with the second rack (104).

8. The PCB depaneling base fixture according to claim 6, characterized in that: Also includes: A rubber pad (61) is bonded and fixed to the outer wall of the limiting pressure plate (6), and when the limiting pressure plate (6) is flipped to a horizontal state, the rubber pad (61) presses down the free end of the limiting flip cover (3).

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