Portable positioning and clamping device

Abstract

The utility model belongs to the field of accurate positioning of parts, and relates to a portable positioning and clamping device. Limiting and clamping of the first part are achieved through the second limiting block and the first limiting block, limiting and clamping of the second part are further achieved through cooperation of the first limiting block, the second limiting block and the shifting block, the second part and the first part are tightly attached through the pressing block, and the clamping effect is good. And meanwhile, the second part is flat and free of local warping. Furthermore, according to the design of the shifting block, friction force between the first screw and a shifting block groove is utilized, so that the shifting block rotates to push and clamp the second part and automatically lock the second part at the same time, operation procedures are reduced, the workpiece position is simply and quickly limited in all directions, the product quality is stable and controllable, and the influence on the product quality in the transferring process is greatly reduced. In addition, the utility model has the advantages of wide purchasing channel of each part, short design period, low cost and high precision, and greatly reduces the time cost and the capital cost.

Description

Technical Field

[0001] The utility model relates to the field of precise positioning of parts and components, in particular to a convenient positioning and clamping device. Background Art

[0002] In the process of product manufacturing, it is often necessary to position and fix parts. For two or more parts, not only do they need to be accurately positioned, but also the relative position and direction between the parts need to be accurately controlled and maintained without relative displacement. In some cases, the fixed parts need to be moved to other environments for the next step, which requires higher requirements for related equipment. For example, in the assembly process of electronic equipment, the fixation of PCB is one of the key steps. In the production process of X-ray detectors, the PCB board needs to be bonded to the preset position on the substrate, and after being fixed, it needs to be moved to a specific environment for curing. The detector PCB will affect the subsequent packaging process due to its fixed position accuracy, so the requirements for fixed tooling are higher. The existing PCB board pasting is completed by professional equipment, which includes image recognition system, servo control system, guide rails, motors and other hardware parts, and the equipment design is complex. In addition, the existing equipment cannot directly perform UV ultraviolet curing, cannot realize product transfer or cannot ensure that the relative position of the PCB board and the substrate after curing meets the technical requirements during the product transfer process. It can only be commissioned by the equipment manufacturer for customization, which has a long cycle and high cost. In summary, the traditional fixing method has problems such as unstable fixation, complex operation, easy position displacement, and inconvenient transfer for curing. Therefore, it is particularly important to develop a new type of fixed tooling. Utility Model Content

[0003] The purpose of the utility model is to provide a convenient positioning clamping device with high positioning accuracy, simple operation, low cost and good stability, so as to solve the problems of unstable fixing, complex operation, easy position deviation and inconvenient transfer for curing of existing equipment.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is as follows.

[0005] A convenient positioning and clamping device, the device comprises a base plate, a first limit block connected to the base plate, and a second limit block and a shift block detachably connected to the base plate, a baffle being provided at the bottom of the first limit block and the bottom of the second limit block for forming a first space for accommodating and clamping a first component, the first limit block being provided with an L-shaped groove, the L-shaped groove and the second limit block and the shift block forming a second space for accommodating and clamping a second component, the shift block being provided on a side of the base plate close to the vertical end of the L-shaped groove, and being connected to the base plate by a first screw, and when the shift block is rotated to a preset position along a preset direction, a thrust toward the horizontal end of the L-shaped groove can be generated on the second component, thereby clamping the second component and fastening the shift block to the base plate at the same time.

[0006] Furthermore, a through hole is provided on the shift block, and the first screw screws the shift block to the base plate by passing through the through hole. The shift block is provided with a circular groove concentric with the through hole, and the inner wall of the circular groove matches the shape of the screw head of the first screw, so that when the shift block is rotated to a preset position, the first screw is automatically tightened under the action of the friction force between the circular groove and the screw head, thereby fixing the shift block to the base plate.

[0007] Furthermore, it also includes a pressing block detachably connected to the bottom plate, including a pressing portion and a positioning portion, and the pressing portion covers the second space to make the second component flat and close to the first component.

[0008] Furthermore, two ends of the pressing portion of the pressing block and two ends of the first limiting block are respectively connected to the bottom plate through common screws.

[0009] Furthermore, the screw holes at both ends of the clamping portion penetrate toward the second limiting block to form U-shaped screw holes, and the width of the U-shaped screw hole is larger than the diameter of the screw rod of the common screw and smaller than the diameter of the screw head of the common screw.

[0010] Furthermore, a plurality of second components may be arranged at the vertical end of the L-shaped groove on the first limiting block, and at least one spacer is provided on the side of the second limiting block facing the second space for limiting the distance between two adjacent second components.

[0011] Furthermore, a plurality of sets of matching screws and screw holes are provided on both sides of a portion of the clamping portion corresponding to the spacing portion, for clamping the end of the second component.

[0012] Furthermore, the two ends of the second limit block are connected to the base plate by second screws, and the screw holes at the two ends of the second limit block are penetrated toward the direction close to the first limit block to form U-shaped screw holes, and the width of the U-shaped screw hole is larger than the diameter of the screw rod of the second screw and smaller than the diameter of the screw head of the second screw.

[0013] Furthermore, the first component is a substrate, the second component is a PCB board, and the substrate and the bottom plate are made of transparent materials.

[0014] Furthermore, one or more through-going observation ports are provided on a side of the second limiting block and the first limiting block close to the second space.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] The convenient positioning and clamping device of the utility model realizes the limiting and clamping of the first component by the second limiting block and the first limiting block, and further realizes the limiting and clamping of the second component by the cooperation of the first limiting block, the second limiting block and the shifting block, and uses the pressing block to make the second component fit closely with the first component, and at the same time make the second component flat and without local warping. Furthermore, the design of the shifting block utilizes the friction between the first screw and the groove of the shifting block, so that the shifting block rotates to push the second component into the clamping and automatically locks at the same time, which reduces the operation process and is simple and fast. In addition, the utility model has a wide range of procurement channels for various components, a short design cycle, low cost, and high precision, which greatly reduces time cost and capital cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0018] Figure 1 This is an exploded view of the positioning and clamping device structure of Embodiment 1 of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the first limit block in Example 1 of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the second limit block in Embodiment 1 of the utility model;

[0021] Figure 4 This is a schematic diagram of the assembly of the positioning and clamping device of Embodiment 1 of the utility model;

[0022] Figure 5 This is a schematic diagram of the details of the structure of the shift block in Example 1 of the utility model;

[0023] Figure 6 This is a schematic diagram of the briquetting structure of Embodiment 1 of the utility model;

[0024] Figure 7 This is a schematic diagram of the assembly effect of the positioning and clamping device of Embodiment 1 of the utility model;

[0025] Figure 8 This is a schematic diagram of the second space formed by the first limiting block and the second limiting block in Example 1 of the utility model.

[0026] Figure identification: 1-bottom plate, 2-first limit block, 3-second limit block, 4-shift block, 5-second space, 6-L-shaped groove, 601-vertical end, 602-horizontal end, 7-block bar, 8 -first screw, 9-pressing block, 901-pressing part, 902-positioning part, 10-common screw, 11-spacer, 12-second screw, 13-observation port, 14-PCB board. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme and advantages of the utility model clearer, the utility model is further described in detail below in combination with the embodiments and drawings. The schematic implementation mode and description of the utility model are only used to explain the utility model and are not intended to limit the utility model. The various technical features in the utility model can be combined with each other to form different schemes, and various combinations also fall within the scope of protection of the utility model.

[0028] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element at the same time. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time. When an element is referred to as being "provided with" another element, it may be provided on the surface or inside of the element.

[0029] It is a common requirement to position and fix parts in product production engineering. For two or more parts, not only do they need to be accurately positioned, but also they need to ensure that there is no relative displacement between the parts. In some cases, the fixed parts need to be moved to other environments for the next step. The existing equipment has problems such as unstable fixation, complex operation, easy position displacement, and inconvenient transfer for curing. The following is a detailed description of the utility model through specific embodiments.

[0030] Example 1

[0031] Embodiment 1 provides a convenient positioning clamping device, such as Figure 1As shown, the device includes a bottom plate 1, a first limit block 2 connected to the bottom plate 1, and a second limit block 3 and a shift block 4 detachably connected to the bottom plate 1. A stop bar 7 is provided at the bottom of the first limit block 2 and the bottom of the second limit block 3. Figure 2 and Figure 3 As shown, the first space for accommodating and clamping the first component is formed, the first limit block 2 is provided with an L-shaped groove 6, and the L-shaped groove 6 and the second limit block 3 and the shift block 4 form a second space 5, as shown in FIG. Figure 8 As shown, it is used to accommodate and clamp the second component. The shift block 4 is arranged on one side of the bottom plate 1 close to the vertical end of the L-shaped groove 6 and is connected to the bottom plate 1 by a first screw 8. When the shift block 4 is rotated to a preset position along a preset direction, it can generate a thrust toward the horizontal end 602 of the L-shaped groove 6 for the second component, clamping the second component and fastening the shift block 4 to the bottom plate 1. Figure 4 As shown. Here, the first component and the second component are sheet-like or plate-like components. In this embodiment, the assembly of the X-ray detector PCB board 14 is taken as an example. The first component is the substrate, and the second component is the PCB board 14. When assembling the X-ray detector PCB board 14, the PCB board 14 needs to be glued to the substrate with glue, and the position accuracy of the PCB board 14 relative to the substrate must be accurately controlled. After the PCB board 14 and the substrate are positioned, they must be transferred as a whole to UV ultraviolet rays for curing. The position accuracy of the PCB board 14 relative to the substrate is required to be high. For example, there is a fixed requirement for the distance between the edge of the PCB board 14 and the edge of the substrate. If the distance is too large, the wire between the PCB and the chip cannot be connected, or the connection effect is poor, which affects the imaging effect and service life. In this embodiment, the bottom plate 1 can be used to support the entire tooling and product, fix the first limit block 2, the second limit block 3, and the pressing block 9. The first limit block 2 can limit the relative position of the left and upper sides of the substrate and the PCB board 14, the second limit block 3 can limit the relative position of the lower side of the substrate and the PCB board 14, and the gap between the two PCB boards 14. The shift block 4 can limit the position of the right PCB board 14, and can be rotated and clamped quickly. The pressing block 9 can press the PCB board 14 flat and fit the substrate. When using it specifically, first place the bottom plate 1 on a flat table, place the substrate with glue on the bottom plate 1, and make the edge of the substrate accurately press against the baffle 7 of the second limit block 3, then place the PCB board 14 on the substrate, so that the upper edge of the PCB board 14 is clamped on the vertical end 601 of the L-shaped groove 6, and the left edge is clamped on the horizontal end 602 of the L-shaped groove 6, install the second limit block 3 and use the baffle 7 below it to press against the substrate, use the edge of the second limit block 3 to press against the bottom of the PCB board 14 and then lock it, as shown in FIG. Figure 7As shown, the shift block 4 is rotated to make it close to the right side of the PCB board 14, and the pressing block 9 is covered to flatten the PCB board 14 and lock it. At this time, the relative position of the substrate and the PCB board 14 meets the technical requirements, and the product quality can still be kept stable after multiple productions. This device restricts the position of the workpiece in all directions, making the product quality stable and controllable, and greatly reducing the impact on product quality during the transfer process.

[0032] Optionally, tweezers can be used instead of the second stopper 3 to push the substrate and the PCB board 14 close to the first stopper 2, but the force application position deviates from the middle position, which will cause the other side of the PCB board 14 to be squeezed out, and the parallelism of the two PCB boards 14 cannot be guaranteed. The pressing block 9 can be replaced by a gravity pressing block 9, which does not need to be locked with a hand screw, but it cannot flatten the PCB board 14 with a slightly warped edge.

[0033] Due to the problem of production accuracy of the PCB board 14 itself, the PCB board 14 may be warped to varying degrees. In order to prevent the PCB board 14 from bouncing or warping during the clamping and limiting process, the device is further optimized in this embodiment. The device also includes a pressing block 9 detachably connected to the bottom plate 1, such as Figure 6 As shown, it includes a clamping portion 901 and a positioning portion 902. The positioning portion 902 is located in the middle of the pressing block 9 and is connected to the bottom plate 1 on the side away from the second limiting block 3. The clamping portion 901 covers the second space 5, so that the second component is flat and close to the first component. In order to facilitate disassembly and improve assembly efficiency, the components of this embodiment are connected by screws. In order to further improve the assembly and disassembly efficiency, the two ends of the clamping portion 901 of the pressing block 9 and the two ends of the first limiting block 2 are respectively connected to the bottom plate 1 by common screws 10. In this way, the number of screws is reduced, and the first limiting block 2 and the pressing block 9 are linked as a whole, which is beneficial to the overall positioning of the product.

[0034] Furthermore, in order to improve the operation efficiency, the screw holes at both ends of the clamping part 901 are connected to form U-shaped screw holes in the direction close to the second limiting block 3, and the width of the U-shaped screw hole is greater than the diameter of the screw rod of the common screw 10, and smaller than the diameter of the screw head of the common screw 10. When assembling, after the first limiting block 2 and the second limiting block 3 are assembled, the pressing block 9 only needs to be pushed in along the direction of the U-shaped screw hole so that the common screw 10 is inserted into the U-shaped screw hole, and then the common screw 10 is tightened. There is no need to completely screw off the common screw 10. Wait until the screw hole of the pressing block 9 is aligned with the screw hole of the first limiting block 2 and then screw the common screw 10 back on. The same principle applies when disassembling. There is no need to completely disassemble the screw. Just loosen the screw and pull out the pressing block 9. In comparison, the U-shaped screw hole of this embodiment greatly saves assembly and disassembly time, and also avoids the problem that the first limiting block 2 affects the positioning accuracy due to complete disassembly. The positioning part 902 of the pressing block 9 can also be assembled in the above manner, and assembled on the bottom plate 1 through the cooperation of the U-shaped screw hole and the screw. Specifically, the screw hole of the positioning portion 902 can be formed into a U-shaped screw hole along a direction away from the second limiting block 3, and the width of the U-shaped screw hole is larger than the diameter of the screw rod of the corresponding screw and smaller than the diameter of the screw head of the corresponding screw.

[0035] Similarly, the second limit block 3 of this embodiment also adopts the same assembly method. The two ends of the second limit block 3 are connected to the base plate 1 by second screws 12. The screw holes at the two ends of the second limit block 3 are penetrated toward the direction close to the first limit block 2 to form a U-shaped screw hole. The width of the U-shaped screw hole is larger than the diameter of the screw rod of the second screw 12 and smaller than the diameter of the screw head of the second screw 12.

[0036] Furthermore, in order to prevent the end of the PCB board 14 from warping, especially for the case of multiple PCB boards 14, since the clamping portion 901 of the clamping block 9 is relatively long, if the clamping portion 901 is only fixed at both ends, the middle portion may not be fixed, which may cause the overall pressure of the clamping portion 901 to be unbalanced, especially if the PCB board 14 itself is uneven or the right-side shift block 4 squeezes too much, causing the PCB board 14 to have a tendency to pop out, the overall pressure balance of the clamping portion 901 becomes more important. Therefore, in this embodiment, a plurality of sets of matching screws and screw holes are provided on both sides of the portion corresponding to the spacer portion 11 on the clamping portion 901, which are used to clamp the end of the second component.

[0037] The shift block 4 of this embodiment can realize fast clamping and automatic tightening. Its structural details are as follows: Figure 5As shown, the shift block 4 is provided with a through hole, and the first screw 8 screws the shift block 4 to the base plate 1 by passing through the through hole. The shift block 4 is provided with a circular groove concentric with the through hole, and the inner wall of the circular groove matches the shape of the screw head of the first screw 8, so that when the shift block 4 is rotated to a preset position, the first screw 8 is automatically tightened under the action of the friction force between the circular groove and the screw head, thereby fixing the shift block 4 to the base plate 1. Specifically, the screw head of the first screw 8 can be designed to be cylindrical, and the circular groove is designed to be a groove matching the cylindrical screw head. In this way, when the shift block 4 rotates, the shift block 4 pushes the PCB board 14 from the right side to the left side of the second space 5 during the rotation process, so that it is close to the horizontal end 602 or the isolation part of the L-shaped groove 6. At the same time, the cylindrical bottom surface and the cylindrical side surface of the screw head respectively generate friction with the bottom surface and the side surface of the circular groove, and the screw head is driven by the shift block 4 to rotate synchronously, so that the screw is further tightened, and the shift block 4 is fixed on the bottom plate 1, preventing the shift block 4 from rotating in the opposite direction to loosen and affect the fixing effect of the PCB. It can be understood that before rotating the shift block 4, that is, before the PCB board 14 is assembled or before the PCB is assembled but not tightened by the shift block 4, the first screw 8 should be in a pre-tightened state, so that the bottom surface of the screw head and the bottom surface of the circular groove generate sufficient pressure, so that when the shift block 4 rotates, the pressure can generate sufficient friction, drive the screw to rotate synchronously, and realize that the shift block 4 clamps the PCB board 14 and automatically locks it.

[0038] The clamping device of this embodiment can simultaneously position and clamp multiple components. For the field of X-ray detectors, multiple PCB boards 14 can be fixed on the same substrate at the same time. Specifically, multiple PCB boards 14 are arranged at the vertical end 601 of the L-shaped groove 6 on the first limiting block 2, and at least one spacer 11 is provided on the side of the second limiting block 3 facing the second space 5, which is used to limit the distance between two adjacent PCB boards 14. It should be noted that the widths of the multiple PCB boards 14 are the same, and the lengths can be the same or different. The arrangement of devices on the PCB board 14 can be the same or different. Therefore, the distances between the multiple spacers 11 are not necessarily the same, but are designed accordingly according to the lengths of the PCB boards 14 at corresponding positions in the specific PCB board 14 arrangement design.

[0039] Since the PCB board 14 needs to be cured under UV ultraviolet light after being bonded to the substrate, the present embodiment requires that the substrate and the bottom plate 1 be made of transparent material, and UV ultraviolet light is irradiated from the bottom surface, that is, the side of the bottom plate 1, during curing to cure the colloid between the substrate and the PCB board 14.

[0040] Furthermore, in order to conveniently observe whether the PCB board 14 is completely attached to the substrate, in this embodiment, one or more through observation ports 13 are provided on the side of the second limit block 3 and the first limit block 2 close to the second space 5. The second limit block 3 and the first limit block 2 are provided with multiple observation ports 13 on the side close to the PCB, so as to conveniently observe the pressing conditions of the PCB board 14 at different parts, timely find the places that are not attached firmly, and make adjustments in time to improve the process yield.

[0041] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0042] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit them. Although the utility model is described in detail with reference to the above embodiments, a person skilled in the art should understand that the technical solutions described in the above embodiments can still be modified, or some of the technical features can be replaced by equivalents, and these modifications or replacements, or different forms of combinations between the various features, do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the utility model.

Claims

1. A portable positioning clamping device, characterized in that: The device includes a base plate, a first limit block connected to the base plate, and a second limit block and a shift block detachably connected to the base plate. A baffle is provided at the bottom of the first limit block and the bottom of the second limit block for forming a first space for accommodating and clamping a first component. The first limit block is provided with an L-shaped groove. The L-shaped groove and the second limit block and the shift block form a second space for accommodating and clamping a second component. The shift block is provided on one side of the base plate close to the vertical end of the L-shaped groove and is connected to the base plate by a first screw. When the shift block is rotated to a preset position along a preset direction, a thrust toward the horizontal end of the L-shaped groove can be generated on the second component, thereby clamping the second component and fastening the shift block to the base plate.

2. A portable positioning clamping device according to claim 1, characterized in that: The shift block is provided with a through hole, and the first screw passes through the through hole to screw the shift block to the base plate. The shift block is provided with a circular groove concentric with the through hole, and the inner wall of the circular groove matches the shape of the screw head of the first screw, so that when the shift block is rotated to a preset position, the first screw is automatically tightened under the action of the friction force between the circular groove and the screw head, thereby fixing the shift block to the base plate.

3. A portable positioning clamping device according to claim 2, characterized in that: It also includes a pressing block detachably connected to the base plate, including a pressing portion and a positioning portion, the positioning portion is located in the middle of the pressing block and is connected to the base plate on the side away from the second limit block, and the pressing portion covers the second space to make the second component flat and close to the first component.

4. A portable positioning and clamping device according to claim 3, characterized in that: Two ends of the pressing portion of the pressing block and two ends of the first limiting block are respectively connected to the bottom plate through common screws.

5. A portable positioning and clamping device according to claim 4, characterized in that: The screw holes at both ends of the pressing part penetrate toward the second limiting block to form U-shaped screw holes, and the width of the U-shaped screw hole is larger than the diameter of the screw rod of the common screw and smaller than the diameter of the screw head of the common screw.

6. A portable positioning and clamping device according to claim 3, characterized in that: A plurality of second components can be arranged at the vertical end of the L-shaped groove on the first limiting block, and at least one spacer is provided on the side of the second limiting block facing the second space for limiting the distance between two adjacent second components.

7. A portable positioning and clamping device according to claim 6, characterized in that: A plurality of sets of matching screws and screw holes are provided on both sides of the clamping portion corresponding to the spacing portion, for clamping the end of the second component.

8. A portable positioning and clamping device according to claim 2, characterized in that: The two ends of the second limit block are connected to the base plate by second screws, and the screw holes at the two ends of the second limit block are penetrated toward the direction close to the first limit block to form U-shaped screw holes, and the width of the U-shaped screw hole is larger than the diameter of the screw rod of the second screw and smaller than the diameter of the screw head of the second screw.

9. A portable positioning and clamping device according to any one of claims 1 to 8, characterized in that: The first component is a substrate, the second component is a PCB board, and the substrate and the bottom plate are made of transparent materials.

10. A portable positioning and clamping device according to claim 9, characterized in that: One or more through-going observation ports are provided on one side of the second limiting block and the first limiting block close to the second space.

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