Positioning clamp for PCB drilling

Abstract

The utility model discloses a kind of positioning clamps for PCB drilling, it is related to PCB board field, including support base plate, the two side edges of support base plate are symmetrically welded with installation side bar, the top surface of installation side bar is evenly provided with fixed through-hole, the side edge of support base plate is fixedly provided with control panel, the two side edges of support base plate are symmetrically inserted with clamping side block, the top surface of clamping side block is vertically upwards fixedly connected with fixed top rod, the side edge of fixed top rod is horizontally butt-jointed with telescopic cross bar, the side edge of support base plate is symmetrically fixedly provided with side fixed box, the two side edges of support base plate are horizontally symmetrically provided with horizontal side groove, the inside edge of horizontal side groove is horizontally inserted with clamping screw rod, it can be penetrated comprehensive drilling operation when drilling processing is carried out under the clamping structure of suspension, simultaneously in multidirectional adjusting type clamping structure let it can satisfy multi-specification plate body clamping fixed use.

Description

Technical Field

[0001] This utility model relates to the field of PCB board technology, specifically a positioning fixture for PCB drilling. Background Technology

[0002] Circuit boards are named as follows: ceramic circuit board, alumina ceramic circuit board, aluminum nitride ceramic circuit board, circuit board, PCB board, aluminum substrate, high frequency board, thick copper board, impedance board, PCB, ultra-thin circuit board, ultra-thin circuit board, printed circuit board (copper etching technology), etc. Circuit boards make circuits miniaturized and more intuitive, playing an important role in the mass production of fixed circuits and the optimization of electrical appliance layout.

[0003] When processing circuit boards, drilling is required. Traditional drilling involves clamping the board with two clamping plates. If the clamping force is too strong, the board may break. If the clamping force is insufficient, effective clamping cannot be achieved, affecting subsequent drilling operations. Utility Model Content

[0004] The purpose of this utility model is to provide a positioning fixture for PCB drilling, in order to solve the problem mentioned in the background art that when processing circuit boards, drilling is required. Traditional drilling processes use two clamping plates to hold the board, which can cause the board to break if the pressure is too high, and fail to form an effective clamp if the pressure is insufficient, thus affecting subsequent drilling operations.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A positioning fixture for PCB drilling includes a support base plate. Mounting side strips are symmetrically welded to both sides of the support base plate. Fixed through holes are evenly distributed on the top surface of each mounting side strip. A control panel is fixedly mounted on one side of the support base plate. Snap-fit ​​side blocks are symmetrically inserted into both sides of the support base plate. A fixing rod is vertically and upwardly fixed to the top surface of each snap-fit ​​side block. A telescopic crossbar is horizontally connected to one side of each fixing rod. Side fixing boxes are symmetrically fixed to one side of the support base plate. Horizontal side grooves are symmetrically formed on both sides of the support base plate. The inner side of each horizontal side groove... A clamping screw is horizontally inserted into the side of the side fixing box, a clamping motor is fixedly installed on the inner side of the side fixing box, a mating screw hole is opened on the side of the snap-fit ​​side block, an installation screw hole is horizontally opened on one side of the fixed top rod, a horizontal cylinder is horizontally fixedly installed on the inner side of the telescopic crossbar, an installation screw is horizontally inserted into one end of the telescopic crossbar, an end mating groove is horizontally opened at the end of the telescopic crossbar away from the installation screw, a sensor is fixedly snapped into the inner side of the end mating groove, a positioning plate is horizontally snapped into the inner bottom surface of the end mating groove, and a compression cylinder is fixedly installed on the bottom surface of the telescopic crossbar.

[0007] In a preferred embodiment of this utility model, there are two mounting side strips, which are arranged in parallel with each other. The two mounting side strips are symmetrically fixed at the bottom ends of both sides of the support base plate, and the fixing through holes are arranged horizontally in a straight line at the center line of the top surface of the mounting side strips.

[0008] In a preferred embodiment of this utility model: the control panel is fixedly installed at the center of one side of the supporting base plate, and there are four snap-fit ​​side blocks, all of which are U-shaped. The snap-fit ​​side blocks are arranged in pairs and inserted into each other in parallel on the inner side of the horizontal side groove. The fixing top rod is fixedly connected to one end of the top surface of the snap-fit ​​side block.

[0009] In a preferred embodiment of this utility model, one end of the telescopic crossbar is horizontally connected to the opening end of the mounting screw hole, and the side fixing box is symmetrically fixed on one side of the support base plate near both ends.

[0010] In a preferred embodiment of this utility model: the output end of the clamping motor is extended and fixedly connected to one end of the clamping screw, and a threaded hole is opened through the side of the snap-fit ​​side block near one end. The threaded hole is also threadedly connected to the outer side of the clamping screw. The mounting screw hole is horizontally opened on the side of the fixed top rod near the top end, and one end of the mounting screw is threadedly fixedly connected to the inner side of the mounting screw hole.

[0011] In a preferred embodiment of this utility model: the end fitting groove is horizontally opened at the center line of one end of the telescopic crossbar, and one end of the end fitting groove extends horizontally through the side wall of the telescopic crossbar to the outside in an open shape. The sensor is a pressure sensor structure, and the sensor and the internal main board of the control panel are electrically connected to each other. The extrusion cylinder is vertically fixedly installed on the bottom surface of the telescopic crossbar near one end, and the output end of the extrusion cylinder extends vertically upward and is fixedly connected to the center of the bottom surface of the positioning tray.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This invention involves placing a support base plate horizontally in a designated position, then securing the side strips with bolts through the fixing holes. After the plate is horizontally positioned between the ends of the telescopic crossbars, the control panel controls the rotation of the side clamping motor. This rotation, via its output, drives the clamping screw, causing the locking side block to move horizontally along the horizontal side groove. The locking side block is adjusted to a specified distance. Furthermore, the horizontal extension and retraction of the output end of the horizontal cylinder causes the telescopic crossbars to adjust their horizontal spacing, allowing one end to... The horizontal clamping grooves are positioned at the outer edges of the four corners of the board. Internal sensors detect the compressive force, preventing excessive pressure that could affect the board's stability. The output end of the bottom compression cylinder extends to a positioning support plate, raising it to a specified height to secure the top corners of the board. The suspended clamping structure allows for comprehensive, through-hole drilling, and the multi-directional adjustable clamping structure accommodates various board sizes. Attached Figure Description

[0014] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0015] Figure 1 This is a three-dimensional structural diagram of a positioning fixture for drilling PCBs;

[0016] Figure 2 A structural schematic diagram showing the connection details of a three-dimensional cross-section of the support base plate of a positioning fixture for PCB drilling;

[0017] Figure 3 A three-dimensional cross-sectional schematic diagram showing the connection details of the fixing top rod of a positioning fixture for PCB drilling;

[0018] Figure 4 This is a structural schematic diagram showing the connection details of a telescopic crossbar of a positioning fixture for drilling PCBs.

[0019] In the diagram: 1. Support base plate; 2. Mounting side strip; 3. Fixing through hole; 4. Control panel; 5. Snap-fit ​​side block; 6. Fixing top rod; 7. Telescopic crossbar; 8. Side fixing box; 9. Horizontal side groove; 10. Clamping screw; 11. Clamping motor; 12. Mating screw hole; 13. Mounting screw hole; 14. Horizontal cylinder; 15. Mounting screw; 16. End mating groove; 17. Sensor; 18. Positioning support plate; 19. Extrusion cylinder. Detailed Implementation

[0020] Please see Figure 1 In this embodiment of the present invention, a positioning fixture for PCB drilling includes a support base plate 1. Mounting side strips 2 are symmetrically welded to both sides of the support base plate 1. Fixing through holes 3 are evenly distributed on the top surface of each mounting side strip 2. There are two mounting side strips 2, arranged parallel to each other. The two mounting side strips 2 are symmetrically fixed at the bottom ends of both sides of the support base plate 1. The fixing through holes 3 are horizontally arranged in a straight line at the center line of the top surface of each mounting side strip 2. A control panel 4 is fixedly installed on one side of the support base plate 1. Snap-fit ​​side blocks 5 are symmetrically inserted into both sides of the support base plate 1, with the top surface of the snap-fit ​​side blocks 5 vertically upward. A fixed top rod 6 is fixedly connected. The control panel 4 is fixedly installed at the center of one side of the support base plate 1. There are four snap-fit ​​side blocks 5, and all four snap-fit ​​side blocks 5 are U-shaped. The snap-fit ​​side blocks 5 are arranged in pairs and inserted into each other in parallel on the inner side of the horizontal side groove 9. The fixed top rod 6 is fixedly connected at one end of the top surface of the snap-fit ​​side block 5. A telescopic crossbar 7 is horizontally connected to one side of the fixed top rod 6. A side fixing box 8 is symmetrically fixed on one side of the support base plate 1. One end of the telescopic crossbar 7 is horizontally connected to the opening end of the mounting screw hole 13. The side fixing box 8 is symmetrically fixed on one side of the support base plate 1 near both ends.

[0021] Please see Figure 2-4In this embodiment of the utility model, a positioning fixture for PCB drilling is provided, wherein horizontal side grooves 9 are symmetrically opened on both sides of the supporting base plate 1, and clamping screws 10 are horizontally inserted into the inner side of the horizontal side grooves 9. A clamping motor 11 is fixedly installed on the inner side of the side fixing box 8. A mating screw hole 12 is opened on the side of the snap-fit ​​side block 5. A mounting screw hole 13 is horizontally opened on one side of the fixed top rod 6. A horizontal cylinder 14 is horizontally fixedly installed on the inner side of the telescopic crossbar 7. A mounting screw 15 is horizontally fixedly inserted into one end of the telescopic crossbar 7. The output end of the clamping motor 11 is extended and fixedly connected to one end of the clamping screw 10. The mating screw hole 12 is opened through the side of the snap-fit ​​side block 5 near one end, and the mating screw hole 12 is threadedly connected to the outer side of the clamping screw 10. The mounting screw hole 13 is horizontally opened on the side of the fixed top rod 6 near the top end. One end of the rod 15 is threaded and fixedly connected to the inner side of the mounting screw hole 13. The telescopic crossbar 7 has a horizontal end fitting groove 16 at the end away from the mounting screw 15. The sensor 17 is fixedly snapped into the inner side of the end fitting groove 16. The positioning plate 18 is horizontally snapped into the inner bottom surface of the end fitting groove 16. The compression cylinder 19 is fixedly installed on the bottom surface of the telescopic crossbar 7. The end fitting groove 16 is horizontally opened at the center line of one end of the telescopic crossbar 7, and one end of the end fitting groove 16 extends horizontally through the side wall of the telescopic crossbar 7 to the outside in an open shape. The sensor 17 is a pressure sensor structure, and the sensor 17 is electrically connected to the internal main board of the control panel 4. The compression cylinder 19 is vertically fixedly installed on the bottom surface of the telescopic crossbar 7 near one end, and the output end of the compression cylinder 19 extends vertically upward and is fixedly connected to the center of the bottom surface of the positioning plate 18.

[0022] The working principle of this utility model is as follows:

[0023] After the support base plate 1 is placed horizontally in the designated position, the mounting side strip 2 is fixed by bolts passing through the fixing through hole 3. After the plate is placed horizontally between the telescopic crossbars 7, the control panel 4 is set to control the rotation of the side clamping motor 11, which drives the clamping screw 10 to rotate, causing the snap-fit ​​side block 5 to move horizontally along the horizontal side groove 9. The snap-fit ​​side block 5 is adjusted to the designated spacing. After the horizontal cylinder 14 moves horizontally, it drives the telescopic crossbar 7 to adjust the spacing horizontally. The end fitting groove 16 at one end is horizontally fastened to the outer edge of the four corners of the plate. The internal sensor 17 can detect the squeezing force to prevent the squeezing force from being too large and affecting the stability of the plate. With the extension of the output end of the bottom squeezing cylinder 19, the output end can be lifted to the designated height by the positioning support plate 18, squeezing and fixing the corners of the plate on the top surface.

[0024] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A positioning fixture for drilling holes in a PCB, comprising a supporting base plate (1), characterized in that, The support base plate (1) has symmetrically welded mounting side strips (2) on both sides. The top surface of the mounting side strips (2) is evenly provided with fixing through holes (3). The support base plate (1) has a control panel (4) fixedly installed on one side. The support base plate (1) has symmetrically inserted snap-fit ​​side blocks (5) on both sides. The top surface of the snap-fit ​​side blocks (5) is vertically and upwardly fixedly connected with a fixing rod (6). The side of the fixing rod (6) is horizontally connected to a telescopic crossbar (7). The support base plate (1) has symmetrically fixedly installed side fixing boxes (8) on one side. The support base plate (1) has horizontally symmetrically opened horizontal side grooves (9) on both sides. The inner side of the horizontal side grooves (9) is horizontally inserted with clamping screws (10). The side fixing boxes (8) has a clamping motor (11) fixedly installed on its inner side. The side of the snap-fit ​​side block (5) has a mating screw hole (12). The side of the fixed top rod (6) has a horizontal mounting screw hole (13). The inner side of the telescopic crossbar (7) has a horizontal cylinder (14) fixedly installed. One end of the telescopic crossbar (7) is horizontally fixedly inserted with a mounting screw (15). The telescopic crossbar (7) has an end mating groove (16) horizontally opened at the end away from the mounting screw (15). The inner side of the end mating groove (16) is fixedly snapped with a sensor (17). The inner bottom surface of the end mating groove (16) is horizontally snapped with a positioning plate (18). The bottom surface of the telescopic crossbar (7) is fixedly installed with a compression cylinder (19).

2. The positioning fixture for PCB drilling according to claim 1, characterized in that, The number of mounting side strips (2) is two, and the two mounting side strips (2) are arranged in parallel to each other. The two mounting side strips (2) are symmetrically fixed at the bottom of both sides of the support base plate (1). The fixing through holes (3) are arranged horizontally in a straight line at the center line of the top surface of the mounting side strips (2).

3. A positioning fixture for PCB drilling according to claim 1, characterized in that, The control panel (4) is fixedly installed at the center of one side of the support base plate (1). There are four snap-fit ​​side blocks (5), and all four snap-fit ​​side blocks (5) are U-shaped. The snap-fit ​​side blocks (5) are arranged in pairs and inserted into each other in parallel on the inner side of the horizontal side groove (9). The fixing rod (6) is fixedly connected to one end of the top surface of the snap-fit ​​side block (5).

4. A positioning fixture for PCB drilling according to claim 1, characterized in that, One end of the telescopic crossbar (7) is horizontally connected to the opening end of the mounting screw hole (13), and the side fixing box (8) is symmetrically fixed on one side of the support base plate (1) near both ends.

5. A positioning fixture for PCB drilling according to claim 1, characterized in that, The output end of the clamping motor (11) is extended and fixedly connected to one end of the clamping screw (10). The screw hole (12) is opened through the side of the snap-fit ​​side block (5) near one end. The screw hole (12) is threadedly connected to the outer side of the clamping screw (10). The mounting screw hole (13) is opened horizontally on the side of the fixed top rod (6) near the top. One end of the mounting screw (15) is threadedly fixedly connected to the inner side of the mounting screw hole (13).

6. A positioning fixture for PCB drilling according to claim 1, characterized in that, The end fitting groove (16) is horizontally opened at the center line of one end of the telescopic crossbar (7), and one end of the end fitting groove (16) extends horizontally through the side wall of the telescopic crossbar (7) to the outside in an open shape. The sensor (17) is a pressure sensor structure, and the sensor (17) and the internal main board of the control panel (4) are electrically connected to each other. The extrusion cylinder (19) is vertically fixed on the bottom surface of the telescopic crossbar (7) near one end, and the output end of the extrusion cylinder (19) extends vertically upward and is fixedly connected to the center of the bottom surface of the positioning plate (18).

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