Anti-warping positioning tool for circuit board drilling

Abstract

The utility model relates to the technical field of circuit board processing, in particular to an anti-warping positioning tool for circuit board drilling, which comprises a positioning tool frame, a circuit board supporting platform with adjustable width is arranged in the middle of the positioning tool frame, the circuit board supporting platform comprises two U-shaped sliding rails which are symmetrically arranged, and the horizontal distance between the two U-shaped sliding rails is adjustable. Clamping mechanisms are arranged on the upper side and the lower side of the circuit board supporting platform correspondingly, each clamping mechanism comprises a clamping frame and an anti-warping positioning block which is arranged on the clamping frame and is adjustable in left-right position and front-back position, and an over-drilling hole is formed in the middle of each anti-warping positioning block; according to the utility model, the drilling position can be conveniently pressed up and down after being aligned with the drilling position, the situation that the position of the circuit board is changed due to the friction with the circuit board in the positioning process is reduced, and the over-drilling hole can be conveniently and accurately positioned for multiple times.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit board processing, in particular to an anti-bending and warping positioning tool for circuit board drilling. Background Technique

[0002] The circuit board miniaturizes and visualizes the circuit, and plays an important role in the mass production of fixed circuits and the optimization of the electrical appliance layout. During the processing of the circuit board, through-drilling is required. During through-drilling, clamping is required and bending and warping are prevented, and positioning is required. After retrieval, the patent with the publication number CN211806547U discloses a PCB circuit board drilling positioning tool, including a positioning plate and a clamping plate, and the clamping plate is covered above the positioning plate; fixed columns are arranged on the positioning plate and at least one movable column is connected, and two mutually perpendicular baffles are arranged on the fixed column; a lower guide sleeve is slidably connected to the positioning plate, and an upper guide sleeve is slidably connected to the clamping plate, and the upper guide sleeve and the lower guide sleeve can slide to be relatively up and down. The PCB circuit board drilling positioning tool of the utility model can reduce the micro-deformation generated by the PCB board during through-drilling and ensure the accuracy of through-drilling. However, it is provided with an upper guide sleeve and a lower guide sleeve; when performing through-drilling on the PCB, the lower guide sleeve and the upper guide sleeve move to a predetermined position, and the lower guide sleeve forms a support for the PCB board to reduce the micro-deformation generated by the PCB during through-drilling and ensure the accuracy of through-drilling. However, during the moving process, it contacts the circuit board, thereby causing friction with the circuit board, and under the action of the friction force, it is easy to drive the circuit board to move. Therefore, it is designed to facilitate pressing the drilling position up and down after aligning the through-drilling position, reduce the friction between the positioning process and the circuit board, thereby causing the circuit board to change its position, and facilitate multiple precise positioning of the through-drilling circuit board drilling anti-bending and warping positioning tool. Content of the Utility Model

[0003] (1) Technical Problems to be Solved

[0004] Aiming at the deficiencies of the prior art, the utility model provides an anti-bending and warping positioning tool for circuit board drilling, which is convenient for pressing the drilling position up and down after aligning the through-drilling position, reducing the friction between the positioning process and the circuit board, thereby causing the circuit board to change its position, and facilitating multiple precise positioning of the through-drilling.

[0005] (2) Technical Solutions

[0006] To achieve the above object, the present utility model provides the following technical solution: A bending and warping prevention positioning tooling for circuit board drilling, including a positioning tooling frame. A circuit board support platform with adjustable width is provided at the middle position of the positioning tooling frame. The circuit board support platform includes two symmetrically arranged U-shaped sliding rails with adjustable horizontal spacing. Clamping mechanisms are provided on both the upper and lower sides of the circuit board support platform. The clamping mechanism includes a clamping frame and bending and warping prevention positioning blocks arranged on the clamping frame with adjustable left-right and front-back positions. A drilling hole is provided at the middle position of the bending and warping prevention positioning block. It also includes a feeding drive mechanism for adjusting the simultaneous feeding of the upper and lower groups of clamping frames towards the circuit board support platform side.

[0007] Preferably, spacing adjustment components are provided on the opposite sides of the two U-shaped sliding rails. The spacing adjustment component includes a spacing one-way screw threadedly connected to one side of the positioning tooling frame. One side of the spacing one-way screw arranged inside the positioning tooling frame is rotationally connected to the U-shaped sliding rail. An adjustment cap is fixedly installed on the other side of the spacing one-way screw. A spacing sliding rod in horizontal sliding fit with the positioning tooling frame is fixedly installed on the U-shaped sliding rail.

[0008] Preferably, the feeding drive mechanism is provided in four groups and is respectively arranged at the four corner positions of the positioning tooling frame. The feeding drive mechanism includes a bidirectional screw rotationally connected vertically to the positioning tooling frame. Symmetrically threaded on the bidirectional screw are lifting sliders in vertical sliding fit with the positioning tooling frame. The two lifting sliders are respectively fixedly connected to the clamping frames on their respective sides. The positioning tooling frame also includes a clamping motor for driving the rotation of the bidirectional screw.

[0009] Preferably, longitudinal moving sliders that slide horizontally and longitudinally are provided on both sides of the clamping frame. Longitudinal adjustment components for driving the longitudinal movement of the longitudinal moving sliders are provided on both sides of the clamping frame. The bending and warping prevention positioning block is arranged between the two longitudinal moving sliders through a transverse adjustment component.

[0010] Preferably, the longitudinal adjustment component includes a longitudinal one-way screw rotationally connected to one side of the clamping frame. The longitudinal moving slider is threadedly connected to the longitudinal one-way screw. A longitudinal sliding rod fixedly connected to the clamping frame is in sliding fit with the longitudinal moving slider. The clamping frame also includes a longitudinal adjustment motor for driving the rotation of the longitudinal one-way screw.

[0011] Preferably, the transverse adjustment component includes a transverse one-way screw and a transverse sliding rod rotationally connected between the two longitudinal moving sliders. The bending and warping prevention positioning block is threadedly connected to the transverse one-way screw and is in horizontal sliding fit with the transverse sliding rod. A transverse adjustment motor for driving the rotation of the transverse one-way screw is fixedly installed on any one group of longitudinal moving sliders.

[0012] (III) Beneficial effects

[0013] Compared with the prior art, the utility model provides an anti-bending and warping positioning tooling for circuit board drilling, which has the following beneficial effects:

[0014] For the anti-bending and warping positioning tooling for circuit board drilling, through the circuit board support platform, it is convenient to support the circuit board. Through two symmetrically arranged U-shaped sliding rails with adjustable horizontal spacing, it is convenient to support the circuit board from both sides of the circuit board and is suitable for supporting circuit boards with different widths. Through the two anti-bending and warping positioning blocks in the two clamping mechanisms arranged on the upper and lower sides of the circuit board support platform, after aligning with the position of the through-hole to be drilled on the circuit board placed on the circuit board support platform, the feed drive mechanism drives the two clamping frames and the two anti-bending and warping positioning blocks to move towards the side of the circuit board support platform at the same time. Then, the upper and lower anti-bending and warping positioning blocks clamp the position of the circuit board to be drilled through the hole, so as to facilitate the circuit board to be drilled through the through-hole by the drill rod. Due to the setting of the two anti-bending and warping positioning blocks, the situation that the circuit board bends and warps during through-hole drilling is avoided. The anti-bending and warping positioning tooling for circuit board drilling is convenient to press the drilling position up and down after aligning with the through-hole position, reducing the friction with the circuit board during the positioning process and thus avoiding the situation that the circuit board changes its position, and facilitating multiple accurate positioning of the through-hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of the whole of the utility model;

[0016] Figure 2 is a schematic structural diagram of the whole of the utility model without the clamping mechanism;

[0017] Figure 3 is a schematic structural diagram of the clamping mechanism of the utility model.

[0018] Reference numerals in the drawings: 1, positioning tooling frame; 2, U-shaped sliding rail; 3, clamping frame; 4, anti-bending and warping positioning block; 5, through-hole; 6, longitudinal moving slider; 7, transverse single-direction screw; 8, transverse sliding rod; 9, transverse adjustment motor; 10, longitudinal single-direction screw; 11, longitudinal sliding rod; 12, longitudinal adjustment motor; 13, bidirectional screw; 14, lifting slider; 15, clamping motor; 16, spacing single-direction screw; 17, spacing sliding rod; 18, adjusting cap. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0020] Embodiment:

[0021] Please refer to Figures 1-3 , a anti-bending and warping positioning tooling for circuit board drilling, which includes a positioning tooling frame 1. A circuit board support platform with adjustable width is arranged at the middle position of the positioning tooling frame 1. The circuit board support platform includes two U-shaped sliding rails 2 that are symmetrically arranged and have adjustable horizontal spacing. Clamping mechanisms are arranged on both the upper and lower sides of the circuit board support platform. The clamping mechanism includes a clamping frame 3 and anti-bending and warping positioning blocks 4 that are arranged on the clamping frame 3 and can be adjusted in left-right and front-back positions. A drilling hole 5 is opened at the middle position of the anti-bending and warping positioning block 4. It also includes a feeding drive mechanism for adjusting the simultaneous feeding of the upper and lower groups of clamping frames 3 towards the circuit board support platform side.

[0022] Specifically, spacing adjustment components are arranged on the back sides of the two U-shaped sliding rails 2. The spacing adjustment component includes a spacing single-direction screw 16 that is threadedly connected to one side of the positioning tooling frame 1. One side of the spacing single-direction screw 16 arranged inside the positioning tooling frame 1 is rotatably connected to the U-shaped sliding rail 2. An adjustment cap 18 is fixedly installed on the other side of the spacing single-direction screw 16. A spacing sliding rod 17 that is in horizontal sliding fit with the positioning tooling frame 1 is fixedly installed on the U-shaped sliding rail 2. By rotating the adjustment cap 18 to make the adjustment cap 18 rotate clockwise or counterclockwise, under the cooperative action of the spacing sliding rod 17, the U-shaped sliding rail 2 is driven to move inwards or outwards, thereby facilitating the adjustment of the horizontal spacing from the other U-shaped sliding rail 2, and thus facilitating the support of circuit boards with different widths.

[0023] Specifically, the feeding drive mechanism is set to four groups and is respectively arranged at the four corner positions of the positioning tooling frame 1. The feeding drive mechanism includes a bidirectional screw 13 that is vertically rotatably connected to the positioning tooling frame 1. Lift sliders 14 that are symmetrically threadedly connected to the bidirectional screw 13 and are in vertical sliding fit with the positioning tooling frame 1 are respectively fixedly connected to the clamping frames 3 on their respective sides. The positioning tooling frame 1 also includes a clamping motor 15 for driving the rotation of the bidirectional screw 13. By starting the clamping motor 15 to make the output shaft of the clamping motor 15 rotate clockwise or counterclockwise, it is convenient to drive the bidirectional screw 13 to rotate clockwise or counterclockwise, thereby driving the two lift sliders 14 to move towards both sides or towards the middle, and then the spacing between the two clamping frames 3 can be adjusted, so as to facilitate the simultaneous movement to the circuit board support platform to clamp or release the circuit board simultaneously. By setting four groups, it is convenient to improve the stability of the overall adjustment. During operation, just operate simultaneously.

[0024] Specifically, longitudinal moving sliders 6 that slide horizontally and longitudinally are provided on both sides of the clamping frame 3. Longitudinal adjusting components for driving the longitudinal movement of the longitudinal moving sliders 6 are provided on both sides of the clamping frame 3. The anti-bending and warping positioning block 4 is arranged between the two longitudinal moving sliders 6 through a transverse adjusting component. Through the longitudinal adjusting component, it is convenient to drive the two longitudinal moving sliders 6 to move longitudinally, and further drive the anti-bending and warping positioning block 4 to move longitudinally. Through the transverse adjusting component, it is convenient to drive the anti-bending and warping positioning block 4 to perform transverse adjustment.

[0025] Specifically, the longitudinal adjusting component includes a longitudinal one-way screw 10 rotatably connected to one side of the clamping frame 3. The longitudinal moving slider 6 is threadedly connected to the longitudinal one-way screw 10. A longitudinal slide bar 11 fixedly connected to the clamping frame 3 is slidably fitted on the longitudinal moving slider 6. The clamping frame 3 further includes a longitudinal adjusting motor 12 for driving the rotation of the longitudinal one-way screw 10. Further, the longitudinal adjusting motor 12 is fixedly installed on the clamping frame 3. Starting the longitudinal adjusting motor 12 to make the output shaft of the longitudinal adjusting motor 12 rotate clockwise or counterclockwise is convenient to drive the longitudinal moving slider 6 to move forward or backward, thereby facilitating the longitudinal adjustment of the longitudinal moving slider 6.

[0026] Specifically, the transverse adjusting component includes a transverse one-way screw 7 and a transverse slide bar 8 rotatably connected between the two longitudinal moving sliders 6. The anti-bending and warping positioning block 4 is threadedly connected to the transverse one-way screw 7 and is horizontally slidably fitted with the transverse slide bar 8. A transverse adjusting motor 9 for driving the rotation of the transverse one-way screw 7 is fixedly installed on any one set of longitudinal moving sliders 6. Starting the transverse adjusting motor 9 to make the output shaft of the transverse adjusting motor 9 rotate clockwise or counterclockwise is convenient to drive the transverse one-way screw 7 to rotate clockwise or counterclockwise, and under the guiding action of the transverse slide bar 8, drive the anti-bending and warping positioning block 4 to move left or right, thereby facilitating transverse adjustment.

[0027] It should be noted that the phrases "an embodiment", "embodiment", "exemplary embodiment", "some embodiments", etc. mentioned in the specification indicate that the described embodiments may include specific features, structures, or characteristics, but not necessarily every embodiment includes such specific features, structures, or characteristics. In addition, such phrases do not necessarily refer to the same embodiment. Moreover, when combining specific features, structures, or characteristics with an embodiment, it is within the knowledge scope of those skilled in the art to implement such features, structures, or characteristics in combination with other embodiments, whether explicitly or implicitly described.

[0028] It should be readily understood that the terms "on", "above", and "over" in this disclosure should be interpreted in the broadest manner such that "on" not only means "directly on something", but also includes the meaning of "on something" with intermediate features or layers therebetween, and "above" or "over" not only include the meaning of "above" or "over something", but may also include the meaning of "above" or "over something" with no intermediate features or layers therebetween (i.e., directly on something).

[0029] In addition, spatial relative terms may be used herein for convenience of description, e.g., "below", "beneath", "lower", "above", "upper", etc., to describe the relationship of one element or feature to another as illustrated in the figures. Spatial relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation shown in the figures. The device may have other orientations (rotated 90 degrees or at other orientations), and the spatial relative descriptors used herein may be interpreted accordingly as well.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprise", "include" or any other variation thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the phrase "comprising a..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the element.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and are not intended to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A bending and warping prevention positioning tooling for circuit board drilling, characterized in that: It includes a positioning tooling rack (1). A circuit board support platform with adjustable width is arranged at the middle position of the positioning tooling rack (1). The circuit board support platform includes two U-shaped sliding rails (2) which are symmetrically arranged and have adjustable horizontal spacing. Clamping mechanisms are arranged on both the upper and lower sides of the circuit board support platform. The clamping mechanism includes a clamping frame (3) and anti-bending and warping positioning blocks (4) which are arranged on the clamping frame (3) and have adjustable left-right and front-back positions. A through-drilling hole (5) is opened at the middle position of the anti-bending and warping positioning block (4). It also includes a feeding drive mechanism for adjusting the simultaneous feeding of the upper and lower groups of clamping frames (3) towards the circuit board support platform side.

2. The anti-bending and warping positioning tooling for circuit board drilling according to claim 1, wherein: Spacing adjustment components are arranged on the opposite sides of the two U-shaped sliding rails (2). The spacing adjustment component includes a spacing single-direction screw rod (16) which is threadedly connected to one side of the positioning tooling rack (1). One side of the spacing single-direction screw rod (16) arranged inside the positioning tooling rack (1) is rotationally connected to the U-shaped sliding rail (2). An adjustment cap (18) is fixedly installed on the other side of the spacing single-direction screw rod (16). A spacing sliding rod (17) which is in horizontal sliding fit with the positioning tooling rack (1) is fixedly installed on the U-shaped sliding rail (2).

3. The anti-bending and warping positioning tooling for circuit board drilling according to claim 2, characterized in that: The feeding drive mechanism is arranged in four groups and is respectively arranged at the four corner positions of the positioning tooling rack (1). The feeding drive mechanism includes a bidirectional screw rod (13) which is vertically rotationally connected to the positioning tooling rack (1). Lift sliders (14) which are symmetrically threadedly connected to the bidirectional screw rod (13) and are in vertical sliding fit with the positioning tooling rack (1) are provided. The two lift sliders (14) are respectively fixedly connected to the clamping frames (3) on their respective sides. A clamping motor (15) for driving the rotation of the bidirectional screw rod (13) is also included on the positioning tooling rack (1).

4. The anti-bending and warping positioning tooling for circuit board drilling according to claim 3, characterized in that: Longitudinal moving sliders (6) which horizontally slide longitudinally are arranged on both sides of the clamping frame (3). Longitudinal adjustment components for driving the longitudinal movement of the longitudinal moving sliders (6) are arranged on both sides of the clamping frame (3). The anti-bending and warping positioning block (4) is arranged between the two longitudinal moving sliders (6) through a transverse adjustment component.

5. The anti-bending and warping positioning tooling for circuit board drilling according to claim 4, wherein: The longitudinal adjustment component includes a longitudinal single-direction screw rod (10) which is rotationally connected to one side of the clamping frame (3). The longitudinal moving slider (6) is threadedly connected to the longitudinal single-direction screw rod (10). A longitudinal sliding rod (11) which is fixedly connected to the clamping frame (3) is in sliding fit with the longitudinal moving slider (6). A longitudinal adjustment motor (12) for driving the rotation of the longitudinal single-direction screw rod (10) is also included on the clamping frame (3).

6. The anti-bending and warping positioning tooling for circuit board drilling according to claim 5, wherein: The transverse adjustment component includes a transverse single-direction screw rod (7) and a transverse sliding rod (8) which are rotationally connected between the two longitudinal moving sliders (6). The anti-bending and warping positioning block (4) is threadedly connected to the transverse single-direction screw rod (7) and is in horizontal sliding fit with the transverse sliding rod (8). A transverse adjustment motor (9) for driving the rotation of the transverse single-direction screw rod (7) is fixedly installed on any one group of longitudinal moving sliders (6).

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