Elastic positioning device for micro-diameter PCB drill bit clamping

Abstract

The utility model relates to positioning device technical field especially relates to a kind of elastic positioning device for the clamping of micro-diameter PCB drill bit.The technical scheme comprising base, side plate, installation frame and support platform, the base both ends are provided with side plate, the base upper end is provided with support platform, the inside sliding installation of side plate is equipped with clamping lever, the clamping lever one end is provided with installation frame, the inside of installation frame is provided with extruding block that moves longitudinally, the extruding block between is provided with connecting plate, the connecting plate between is provided with crosspiece, the upper end of base one side is provided with the hydraulic rod of telescopic end and crosspiece connection, the spring that is sleeved in the clamping lever outside is provided between installation frame and side plate.The utility model is positioned by transverse elastic clamping, screw rod, stroke strip, clamping block etc., multiple components cooperate, realize PCB elastic clamping, multi-specification adaptation, accurate positioning, solve the problem of traditional hard clamping injury board, poor adaptability, inaccurate positioning, cumbersome operation.

Description

Technical Field

[0001] This utility model relates to the field of positioning device technology, and in particular to an elastic positioning device for clamping micro-diameter PCB drill bits. Background Technology

[0002] In the PCB manufacturing industry, the stability of PCB clamping and positioning directly affects drilling accuracy and product yield. Traditional PCB clamping and positioning devices have many shortcomings. They mostly adopt rigid clamping structures, which are fixed by bolts or squeezed by hard clamps on the PCB edge, which can easily lead to PCB edge deformation and scratches on the metal layer. This is especially serious for thin PCBs, which greatly reduces the yield.

[0003] The fixed clamping spacing and positioning range can only adapt to PCBs of specific sizes. When changing to PCBs of different specifications, the entire positioning component needs to be disassembled and replaced, resulting in poor versatility and time-consuming operation, which increases the cost of equipment adaptation. During processing, the PCB is prone to displacement due to vibration or force, leading to deviation in drilling position, which makes it difficult to meet the high positioning accuracy requirements of micro-diameter drills. The clamping and unloading operations are cumbersome, requiring manual adjustment of multiple sets of clamping points and tightening or loosening of bolts one by one. The operation steps are numerous and time-consuming, making it unsuitable for batch PCB processing scenarios and severely restricting production efficiency. To address these issues, we propose an elastic positioning device for clamping micro-diameter PCB drills. Utility Model Content

[0004] The purpose of this invention is to address the problems existing in the background technology by proposing an elastic positioning device for clamping micro-diameter PCB drill bits.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an elastic positioning device for clamping micro-diameter PCB drill bits, comprising a base, side plates, a mounting frame, and a support platform. Side plates are provided at both ends of the base, and a support platform is provided at the upper end of the base. Clamping rods are slidably installed inside the side plates. A rectangular, hollow mounting frame is provided at one end of each clamping rod. Longitudinally movable pressing blocks are provided inside each mounting frame. Connecting plates are provided between the pressing blocks, and a horizontal plate is provided between the connecting plates. A hydraulic rod with a telescopic end connected to the horizontal plate is provided on one side of the upper end of the base. A spring sleeved on the outside of the clamping rod is provided between the mounting frame and the side plates.

[0006] Preferably, a ball bearing is embedded inside one end of the mounting frame, and one end of the extrusion block is provided with a conical surface whose thickness increases from top to bottom, the conical surface being in contact with the outer wall of the ball bearing.

[0007] Preferably, a ball bearing is rotatably mounted on one end of the clamping rod, and an anti-slip strip is sleeved on the outer wall of the clamping rod.

[0008] Preferably, the support platform is provided with symmetrically distributed travel strips on both the front and rear sides, each travel strip has a clamping block at one end, the travel strip is sleeved on the outside of the support platform, and the clamping block has an anti-slip pad at one end.

[0009] Preferably, the lower end of the support platform is provided with two sets of symmetrically distributed guide rails, and the travel bar is slidably installed on the outside of the guide rails.

[0010] Preferably, a connecting rod is provided between the stroke bars, and a threaded slider is provided at the lower end of each connecting rod. A screw with relatively distributed outer wall threads is threadedly sleeved on the outer wall of the threaded slider.

[0011] Preferably, a bearing seat is provided at the lower end of the support platform, the screw is rotatably installed inside the bearing seat, and a torsion block is provided at one end of the rotating shaft screw.

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

[0013] 1. In this utility model, the PCB is placed on a support platform. During the process of the first ball bearing, an outward force is applied to the first spring, compressing the spring and causing the clamping rod to extend outward. The first ball bearing fits against the edge of the PCB, providing elastic clamping for the PCB. This ensures stable clamping during drilling. The front and rear ends of the PCB are positioned by clamping blocks. The positions of the clamping blocks are opposite each other and can be adjusted according to the PCB specifications, making it flexible to use. After drilling, the extrusion blocks rise synchronously, pressing the mounting frame outward and causing the elastic clamping components to loosen the PCB. The elastic positioning and clamping of the PCB is convenient to use. Attached Figure Description

[0014] Figure 1 This is a front-view three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a bottom-view three-dimensional structural diagram of the present invention;

[0016] Figure 3 This is a top sectional view of the three-dimensional structure of this utility model;

[0017] Figure 4 This is a top-view three-dimensional structural diagram of the horizontal plate of this utility model;

[0018] Figure 5 This is a front-view three-dimensional structural diagram of the mounting frame of this utility model.

[0019] Reference numerals: 1. Base; 2. Hydraulic rod; 3. Side plate; 4. Mounting frame; 5. Clamping block; 6. Connecting plate; 7. Screw; 8. Horizontal plate; 9. Extrusion block; 10. Support platform; 11. Anti-slip pad; 12. Conical surface; 13. Ball bearing one; 14. Spring; 15. Clamping rod; 16. Ball bearing two; 17. Anti-slip strip; 18. Connecting rod; 19. Bearing seat; 20. Guide rail; 21. Torsion block; 22. Threaded slider; 23. Stroke bar. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] like Figures 1-5 As shown, the present invention proposes an elastic positioning device for clamping micro-diameter PCB drill bits, including a base 1, a side plate 3, a mounting frame 4, and a support platform 10. The base 1 has side plates 3 at both ends and a support platform 10 at the upper end. A clamping rod 15 is slidably installed inside the side plate 3. A rectangular and hollow mounting frame 4 is provided at one end of the clamping rod 15. The mounting frame 4 is provided with longitudinally movable pressing blocks 9. A connecting plate 6 is provided between the pressing blocks 9. A horizontal plate 8 is provided between the connecting plates 6. A hydraulic rod 2 with a telescopic end connected to the horizontal plate 8 is provided on one side of the upper end of the base 1. A spring 14 is provided between the mounting frame 4 and the side plate 3 and sleeved on the outside of the clamping rod 15.

[0022] The mounting frame 4 has a ball bearing 13 embedded inside one end, and the extrusion block 9 has a conical surface 12 with a thickness that increases from top to bottom on one side. The conical surface 12 fits the outer wall of the ball bearing 13.

[0023] One end of the clamping rod 15 is rotatably fitted with a ball bearing 16, and an anti-slip strip 17 is sleeved on the outer wall of the clamping rod 15.

[0024] The support platform 10 is provided with symmetrically distributed travel strips 23 on both the front and rear sides. A clamping block 5 is provided at one end of the travel strip 23. The travel strip 23 is sleeved on the outside of the support platform 10. An anti-slip pad 11 is provided at one end of the clamping block 5.

[0025] The lower end of the support platform 10 is provided with two sets of symmetrically distributed guide rails 20, and the travel bar 23 is slidably installed on the outside of the guide rails 20;

[0026] A connecting rod 18 is provided between the stroke bars 23. A threaded slider 22 is provided at the lower end of each connecting rod 18. A screw 7 with relatively distributed outer wall threads is installed on the outer wall of the threaded slider 22.

[0027] A bearing seat 19 is provided at the lower end of the support platform 10, and the screw 7 is rotatably installed inside the bearing seat 19. A torsion block 21 is provided at one end of the rotating shaft screw 7.

[0028] Based on the implementation steps of Embodiment 1: The PCB board to be processed is placed on the support platform 10 at the upper end of the base 1. The support platform 10 provides a stable bearing foundation for the PCB, ensuring that the PCB will not shake due to force during processing. The hydraulic rod 2 connected to the horizontal plate 8 is activated. The telescopic end of the hydraulic rod 2 drives the horizontal plate 8 to move longitudinally. When moving downward, it triggers clamping; when moving upward, it triggers relaxation. Since the horizontal plate 8 is fixedly connected to the extrusion block 9 in the mounting frame 4, the horizontal plate 8 will synchronously drive the two sets of extrusion blocks 9 to slide longitudinally along the inside of the mounting frame 4. One end of the extrusion block 9 is provided with a conical surface 12 whose thickness increases from top to bottom, and the conical surface 12 is connected to one end of the mounting frame 4. The embedded ball bearing 13 fits tightly against the outer wall. As the extrusion block 9 moves longitudinally, the conical surface 12 transmits lateral thrust through the ball bearing 13, pushing the mounting frame 4 to move closer to the PCB. The mounting frame 4 is fixedly connected to the clamping rod 15. Therefore, the mounting frame 4 will drive the clamping rod 15 to slide along the inside of the side plate 3, so that the clamping structure at the end of the clamping rod 15 fits against the left and right edges of the PCB. At the same time, the spring 14, which is sleeved on the outside of the clamping rod 15 between the mounting frame 4 and the side plate 3, is compressed. The rebound force of the spring 14 acts in the opposite direction on the mounting frame 4 and the clamping rod 15, forming a balance between thrust and elasticity, achieving elastic clamping of the PCB rather than hard clamping.

[0029] Based on the front and rear dimensions of the PCB, the positioning structure is manually adjusted by rotating the torsion block 21 at one end of the screw 7. The screw 7 rotates within the bearing seat 19 at the lower end of the support platform 10. Since the threads on the outer wall of the screw 7 are relatively distributed, and the nut fitted onto the screw 7 is fixed to the travel bar 23 via the connecting rod 18, the rotation of the screw 7 will cause the two sets of nuts to move in opposite or the same direction along the screw 7. This, in turn, will pull the two sets of travel bars 23 along the guide rail 20 at the lower end of the support platform 10 via the connecting rod 18. When the travel bar 23 moves to a position aligned with the front and rear ends of the PCB, the torsion block 21 is stopped, and the travel bar 23... The anti-slip pad 11 on the PCB fits against the front and rear edges of the PCB, completing the positioning of the PCB in the front and rear direction and preventing the PCB from shifting in the front and rear direction during processing. After the PCB drilling is completed, the extension end of the control hydraulic rod 2 is retracted upward, driving the horizontal plate 8 and the extrusion block 9 to move upward synchronously. The lateral thrust of the conical surface 12 of the extrusion block 9 on the ball bearing 13 disappears. At this time, the spring 14 on the outside of the clamping rod 15 releases its rebound force, pushing the mounting frame 4 and the clamping rod 15 to reset in the direction away from the PCB, and the lateral clamping force is relaxed. At the same time, the adjustable torsion block 21 can be adjusted to move the travel bar 23 away from the PCB, so that the processed PC can be easily removed.

[0030] Employing an elastic structure of spring 14 and ball bearing 13, the clamping force of the clamping rod 15 on the PCB is controlled by the rebound force of spring 14, rather than rigid compression. Simultaneously, the ball bearing 13 rolls against the PCB edge, reducing friction damage and solving the problem of PCB edge deformation and scratches easily caused by traditional hard clamping. It is multi-dimensionally adjustable to adapt to different PCB specifications. In the lateral direction, the movement distance of the hydraulic rod 2 driving the extrusion block 9 can be flexibly adjusted, thereby changing the clamping spacing of the clamping rod 15 to adapt to PCBs of different widths. In the front-back direction, the clamping force is controlled by the torsion block 21, screw 7, and sliding mechanism. The adjustable structure of the travel bar 23 allows for free control of the sliding distance of the travel bar 23 along the guide rail 20, adapting to PCBs of different lengths. This breaks the limitation of traditional devices that only adapt to a single size. When clamping laterally, the anti-slip strip 17 on the outer wall of the clamping rod 15 increases the friction with the edge of the PCB, preventing the PCB from sliding laterally. When positioning forward and backward, the anti-slip pad 11 of the travel bar 23 further fixes the PCB, preventing forward and backward displacement. At the same time, the elastic force of the spring 14 can compensate for the slight vibration during PCB processing in real time, ensuring that the PCB remains stable during drilling and improving drilling accuracy.

[0031] Lateral clamping and relaxation are automatically controlled by hydraulic rod 2, eliminating the need for manual adjustment of clamping rod 15. Forward and backward positioning can be completed simply by rotating torsion block 21, making the operation simple. The relaxation process after processing is synchronized, making it convenient to remove parts. Compared with the traditional method of manually tightening multiple bolts for fixing, it significantly shortens the clamping and removal time and improves processing efficiency. Traditional devices often use a single bolt for fixing or a simple clamping structure, which can easily cause the PCB to shift due to vibration or force, resulting in drilling position deviation.

[0032] This device employs a dual fixation mechanism of lateral elastic clamping and front and rear anti-slip positioning, combined with the vibration compensation effect of spring 14, to ensure no displacement during PCB processing, significantly improving drilling accuracy. Traditional positioning devices have fixed clamping spacing and positioning range, only suitable for PCBs of specific sizes. When changing to different PCB specifications, the entire positioning component must be replaced, resulting in poor versatility. This device adjusts the lateral clamping spacing via hydraulic rod 2 and adjusts the front and rear positioning range via screw 7, making it compatible with PCBs of various widths and lengths, reducing equipment replacement costs. Traditional devices, in pursuit of stability, often use rigid clamping blocks 5 to directly squeeze... Pressing on the PCB edge can easily cause damage to the PCB edge and scratches on the metal layer, especially for thin PCBs. The elastic clamping structure and rolling contact design of this device fundamentally avoid rigid contact, reduce PCB processing losses, and improve yield. Traditional devices require manual adjustment of multiple clamping points and tightening of bolts during clamping, and loosening of each bolt one by one during unloading. The operation steps are numerous and time-consuming. This device uses hydraulic rod 2 to automatically control the lateral clamping, and manual adjustment of torsion block 21 can complete the front and rear positioning. The clamping and unloading process is simplified, greatly improving processing efficiency and making it suitable for batch PCB processing scenarios.

[0033] The above specific embodiments are merely several preferred embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

[0034] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An elastic positioning device for clamping micro-diameter PCB drill bits, comprising a base (1), a side plate (3), a mounting frame (4), and a support platform (10), characterized in that: The base (1) has side plates (3) at both ends and a support platform (10) at the top. A clamping rod (15) is slidably installed inside the side plate (3). A rectangular and hollow mounting frame (4) is provided at one end of the clamping rod (15). A longitudinally moving extrusion block (9) is provided inside the mounting frame (4). A connecting plate (6) is provided between the extrusion blocks (9). A horizontal plate (8) is provided between the connecting plates (6). A hydraulic rod (2) with a telescopic end connected to the horizontal plate (8) is provided on one side of the top of the base (1). A spring (14) sleeved on the outside of the clamping rod (15) is provided between the mounting frame (4) and the side plate (3).

2. The elastic positioning device for clamping micro-diameter PCB drill bits according to claim 1, characterized in that: The mounting frame (4) has a ball bearing (13) embedded inside one end, and the extrusion block (9) has a conical surface (12) with a thickness that increases from top to bottom on one side. The conical surface (12) fits against the outer wall of the ball bearing (13).

3. The elastic positioning device for clamping micro-diameter PCB drill bits according to claim 1, characterized in that: One end of the clamping rod (15) is rotatably fitted with a ball bearing (16), and the outer wall of the clamping rod (15) is fitted with an anti-slip strip (17).

4. The elastic positioning device for clamping micro-diameter PCB drill bits according to claim 1, characterized in that: The support platform (10) is provided with symmetrically distributed travel strips (23) on both the front and rear sides. One end of the travel strip (23) is provided with a clamping block (5). The travel strip (23) is sleeved on the outside of the support platform (10). One end of the clamping block (5) is provided with an anti-slip pad (11).

5. The elastic positioning device for clamping micro-diameter PCB drill bits according to claim 4, characterized in that: The lower end of the support platform (10) is provided with two sets of symmetrically distributed guide rails (20), and the travel bar (23) is slidably installed on the outside of the guide rails (20).

6. The elastic positioning device for clamping micro-diameter PCB drill bits according to claim 4, characterized in that: A connecting rod (18) is provided between the stroke bars (23), and a threaded slider (22) is provided at the lower end of each connecting rod (18). A screw (7) with relatively distributed outer wall threads is installed on the outer wall threaded slider (22).

7. The elastic positioning device for clamping micro-diameter PCB drill bits according to claim 6, characterized in that: The lower end of the support platform (10) is provided with a bearing seat (19), and the screw (7) is rotatably installed inside the bearing seat (19). One end of the rotating screw (7) is provided with a torsion block (21).

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