Positioning mechanism

Abstract

The utility model discloses a positioning mechanism. The positioning mechanism comprises a base, a driving structure, a transmission structure and a crimping structure, the driving structure comprises an adjusting piece rotationally arranged on the base; the transmission structure is connected with the driving structure and has a moving stroke in the transverse direction of the base, and a transmission part is arranged on the transmission structure; the crimping structure is movably arranged on the base and is connected with the transmission structure, and the crimping structure is provided with a matching part which is in contact fit with the transmission part; when the adjusting piece rotates under the action of external force, the transmission structure is driven to move in the transverse direction of the base, and the crimping structure can be driven to move in the longitudinal direction of the base under the matching action of the transmission part and the matching part. According to the technical scheme provided by the utility model, the positioning of the product in the assembly process is more reliable, the installation and positioning of components are more accurate, the manual participation amount is less, and the protection effect on the circuit board is better, so that the product yield can be effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit board processing machinery, and particularly relates to a positioning mechanism. Background Art

[0002] During the processing of a circuit board (i.e., a PCB board), it is often necessary to position the circuit board for mounting components. Traditional circuit boards are generally positioned manually by workers or clamped and fixed by two clamping plates. During the process of screwing, the circuit board is prone to displacement, and there are deviations when placing parts, resulting in damage to the components near the parts. Moreover, frequent touching of the circuit board by workers is also likely to cause corrosion and damage to the circuit board, leading to an increase in the short-circuit defect rate of the circuit board. Summary of the Utility Model

[0003] In order to solve the above technical problems, the main purpose of the utility model is to provide a positioning mechanism, aiming to solve the problems that traditional circuit boards are prone to displacement during positioning, affecting the accurate placement of components, and manual operation is likely to cause corrosion and damage to the circuit board, resulting in an increase in the short-circuit defect rate of the circuit board.

[0004] To achieve the above purpose, a positioning mechanism proposed by the utility model includes:

[0005] A base;

[0006] A driving structure, including an adjusting member rotatably arranged on the base;

[0007] A transmission structure, connected to the driving structure and having a moving stroke along the transverse direction of the base, and a transmission part is arranged on the transmission structure;

[0008] A pressing structure, movably arranged on the base and connected to the transmission structure, and a matching part in contact and cooperation with the transmission part is arranged on the pressing structure;

[0009] Wherein, when the adjusting member rotates under the action of an external force, the transmission structure is driven to move along the transverse direction of the base, and under the combined action of the transmission part and the matching part, the pressing structure can be driven to move along the longitudinal direction of the base.

[0010] Optionally, one of the transmission part and the matching part is set as a transmission roller, and the other is set as a matching surface, and at least part of the matching surface is inclined along the transverse direction of the base;

[0011] When the transmission structure moves along the transverse direction of the base, the transmission roller can roll along the matching surface, so that the pressing structure generates a displacement along the longitudinal direction of the base.

[0012] Optionally, the driving structure includes a driving base and an adjusting handle. The driving base is disposed on the base, the adjusting member includes an adjusting screw, the adjusting screw is rotatably disposed on the driving base, and the adjusting handle is disposed at one end of the adjusting screw exposed outside the base;

[0013] The adjusting screw extends along the transverse direction of the base and is screwed to the transmission structure.

[0014] Optionally, the transmission structure includes:

[0015] A first transmission block, fixed on the base and having a sandwich layer formed between the first transmission block and the base. A limiting area is formed at the top of the first transmission block, and the limiting area is adapted to accommodate the product;

[0016] A second transmission block, movably disposed in the sandwich layer and screwed to the adjusting screw;

[0017] The mating surface is disposed on the second transmission block, and the transmission roller is disposed on the crimping structure.

[0018] Optionally, the mating surface has a guiding plane extending along the transverse direction of the base, and a limiting surface and a wedge surface respectively located at both ends of the guiding plane. The limiting surface extends along the longitudinal direction of the base, and the wedge surface is inclined along the longitudinal direction of the base.

[0019] Optionally, the crimping structure includes:

[0020] A crimping base, slidably disposed on the base along the longitudinal direction of the base, and the transmission roller is disposed on the crimping base;

[0021] A crimping plate, disposed on the crimping base and located on one side of the limiting area along the longitudinal direction of the base;

[0022] The adjusting screw rotates relative to the driving base, driving the first transmission block to move along the transverse direction of the base. Under the cooperative action of the transmission roller and the mating surface, the crimping plate is driven to approach or move away from the limiting area.

[0023] Optionally, a first guiding groove is formed on the first transmission block, and the first guiding groove extends along the longitudinal direction of the base;

[0024] The bottom of the crimping base is slidably connected to the base, and the crimping base has two sliding arms extending into the first guiding groove;

[0025] The crimping structure further includes two elastic telescopic members, and each elastic telescopic member is respectively connected to the first transmission block and the corresponding sliding arm.

[0026] Optionally, a plurality of positioning protrusions are provided on the top of the first transmission block, and the plurality of positioning protrusions are adapted to be in positioning cooperation with a plurality of positioning holes on the product.

[0027] Optionally, there are multiple sets of the crimping structures. Among them, two sets of the crimping structures arranged oppositely along the longitudinal direction of the base are taken as a group, and multiple groups of the crimping structures are arranged at intervals along the transverse direction of the base.

[0028] Optionally, multiple groups of the crimping structures are all connected to the same transmission structure.

[0029] The technical solution provided by the present utility model has the following beneficial effects:

[0030] The positioning mechanism provided by the present utility model includes a base, a driving structure, a transmission structure and a crimping structure. Among them, the crimping structure can be used to crimp a product (such as a PCB board) to position the product; by providing a driving structure and a transmission structure, during the crimping operation, the adjusting member can be rotated manually or mechanically, and then the transmission structure can be driven to move along the transverse direction of the base. Under the cooperation of the transmission part on the transmission structure and the cooperation part on the crimping structure, the crimping structure can generate a displacement along the longitudinal direction of the base. Then, when crimping the product, the crimping structure can move along the longitudinal direction of the base to approach the product and crimp on the product to position the product. After the product assembly is completed, the crimping structure can be moved in the reverse direction to unlock the product. The positioning of the whole product during the assembly process is more reliable, the installation and positioning of components are more accurate, and the manual participation is less, and the protection effect on the circuit board is better. Therefore, the product yield can be effectively improved. Description of the Drawings

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0032] Figure 1 It is a schematic structural diagram of an embodiment of a positioning mechanism provided by the present utility model;

[0033] Figure 2 For Figure 1 a schematic structural diagram of another perspective of the positioning mechanism described in

[0034] Figure 3 For Figure 1 a schematic exploded structural diagram of the positioning mechanism described in

[0035] Figure 4 For Figure 3 a structural schematic diagram of a group of the crimping structures in the

[0036] Explanation of the reference numerals in the attached drawings:

[0037] 100 - positioning mechanism; 1 - base; 2 - driving structure; 21 - driving seat; 22 - adjusting handle; 23 - adjusting screw; 3 - transmission structure; 31 - first transmission block; 311 - first guiding groove; 312 - positioning protrusion; 32 - second transmission block; 321 - mating surface; 3211 - guiding plane; 3212 - limiting surface; 3213 - wedge surface; 4 - crimping structure; 41 - crimping seat; 42 - crimping plate; 43 - transmission roller; 44 - elastic telescopic member.

[0038] For the realization of the object, functional features and excellent effects of the present utility model, further explanations will be given below in conjunction with specific embodiments and the accompanying drawings. Specific embodiments

[0039] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with 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. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0040] It should be noted that if there are directional indications involved in the embodiments of the present utility model, the directional indications are only used to explain the relative positional relationship and movement conditions between the structures in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0041] In addition, if there are descriptions such as "first" and "second" involved in the embodiments of the present utility model, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the meaning of "and / or" appearing throughout the text includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or a solution where A and B are satisfied simultaneously. In addition, the technical solutions between the embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model.

[0042] The present utility model provides a positioning mechanism 100. Specifically, please refer to Figure 1 and Figure 2 . In this embodiment, the positioning mechanism 100 includes a base 1, a driving structure 2, a transmission structure 3, and a crimping structure 4. The driving structure 2 includes an adjusting member rotatably disposed on the base 1. The transmission structure 3 is connected to the driving structure 2 and has a moving stroke along the transverse direction of the base 1. A transmission portion is provided on the transmission structure 3. The crimping structure 4 is movably disposed on the base 1 and is connected to the transmission structure 3. A mating portion that is in contact and cooperation with the transmission portion is provided on the crimping structure 4. Wherein, when the adjusting member is rotated under the action of an external force, the transmission structure 3 is driven to move along the transverse direction of the base 1. Under the combined action of the transmission portion and the mating portion, the crimping structure 4 can be driven to move along the longitudinal direction of the base 1.

[0043] In this embodiment, the crimping structure 4 can be used to crimp on a product (such as a PCB board) to position the product. By providing the driving structure 2 and the transmission structure 3, during the crimping operation, the adjusting member can be rotated manually or mechanically to drive the transmission structure 3 to move along the transverse direction of the base 1. Under the combined action of the transmission portion on the transmission structure 3 and the mating portion on the crimping structure 4, the crimping structure 4 can generate a displacement along the longitudinal direction of the base 1. Thus, when crimping the product, the crimping structure 4 can move along the longitudinal direction of the base 1 to approach and crimp on the product for product positioning. After the product assembly is completed, the crimping structure 4 can be moved in the reverse direction to unlock the product. The positioning of the entire product during the assembly process is more reliable, the installation and positioning of components are more accurate, the manual participation is less, and the protection effect on the circuit board is better. Therefore, the product yield can be effectively improved.

[0044] It should be noted that when the positioning mechanism 100 is in normal use, the transverse and longitudinal directions of the base 1 are two perpendicular directions on the horizontal plane. For example, when the transverse direction refers to the left - right direction, the longitudinal direction can refer to the front - back direction. The descriptions of the orientations in the present utility model can all be referred to based on this.

[0045] Among them, in combination with Figures 1 to 3As shown, the driving structure 2 includes a driving base 21 and an adjusting handle 22. The driving base 21 is provided on the base 1. The adjusting member includes an adjusting screw 23. The adjusting screw 23 is rotatably provided on the driving base 21. The adjusting handle 22 is provided at one end of the adjusting screw 23 exposed outside the base 1. The adjusting screw 23 extends along the transverse direction of the base 1 and is screwed to the transmission structure 3. Specifically, an adjusting nut screwed to the adjusting screw 23 may be provided on the transmission structure 3. By rotating the adjusting screw 23, the nut is driven to move along the adjusting screw 23, driving the transmission structure 3 to move along the transverse direction of the base 1 together, so that the transmission part generates a displacement in the transverse direction of the base 1, and then can act on the matching part to drive the crimping structure 4 to move.

[0046] Moreover, when the circuit board is relatively long, the length direction of the circuit board may extend along the transverse direction of the base 1. Therefore, the displacement of the transmission structure 3 in the transverse direction of the base 1 is converted into the displacement of the crimping structure 4 in the longitudinal direction of the base 1, so that the crimping structure 4 has more moving space in the longitudinal direction, and the positioning mechanism 100 as a whole occupies less space in the longitudinal direction, thus having a smaller volume.

[0047] There are many setting forms for the transmission part and the matching part, and any setting method that can realize the conversion of the transverse displacement into the longitudinal displacement is acceptable. Preferably, as shown in Figure 3 and Figure 4 one of the transmission part and the matching part is set as a transmission roller 43, and the other is set as a matching surface 321. The matching surface 321 is at least partially inclined along the transverse direction of the base 1. When the transmission structure 3 moves along the transverse direction of the base 1, the transmission roller 43 can roll along the matching surface 321, so that the crimping structure 4 generates a displacement in the longitudinal direction of the base 1, so that the crimping structure 4 can approach or move away from the product to realize the positioning or unlocking of the product. Moreover, by the way of contact between the transmission roller 43 and the matching surface 321, a line-surface contact is formed, which can make the contact friction force between the transmission roller 43 and the matching surface 321 smaller, so the transmission efficiency is higher.

[0048] Specifically, the transmission structure 3 includes a first transmission block 31 and a second transmission block 32. The first transmission block 31 is located above the second transmission block 32. The first transmission block 31 is fixed to the base 1 and there is an interlayer formed between the first transmission block 31 and the base 1. A limiting area is formed at the top of the first transmission block 31, and the limiting area is adapted to accommodate the product. The second transmission block 32 is movably disposed in the interlayer and is screwed to the adjusting screw 23. The mating surface 321 is disposed on the second transmission block 32, and the transmission roller 43 is disposed on the crimping structure 4. By covering the mating portion of the transmission roller 43 and the mating surface 321 between the first transmission block 31 and the base 1 in the interlayer, it can be better protected to prevent impurities from entering the mating portion of the transmission roller 43 and the mating surface 321 and affecting the mating effect.

[0049] Moreover, as Figure 1 shown, a plurality of positioning protrusions 312 are provided on the top of the first transmission block 31, and the plurality of positioning protrusions 312 are adapted to be in positioning cooperation with a plurality of positioning holes on the product. The product can be limited in the horizontal direction by the plurality of positioning protrusions 312, and then the crimping structure 4 is pressed against the product in the up and down direction to completely limit the product. Among them, the plurality of positioning protrusions 312 can be detachably disposed on the first transmission block 31 to change the positions and quantities of the plurality of positioning protrusions 312 in order to better adapt to the positioning requirements of different products.

[0050] Preferably, as combined with Figure 3 and Figure 4 shown, the mating surface 321 has a guiding plane 3211 extending transversely along the base 1, and a limiting surface 3212 and a wedge surface 3213 respectively located at both ends of the guiding plane 3211. The limiting surface 3212 extends longitudinally along the base 1, and the wedge surface 3213 is inclined longitudinally along the base 1. Among them, when the transmission roller 43 is in contact with the guiding plane 3211, the crimping structure 4 is in the first position. When the second transmission block 32 moves transversely along the base 1 under the action of the adjusting screw 23, the wedge surface 3213 is in contact with the transmission roller 43, so as to exert a pushing force on the crimping structure 4, causing the crimping structure 4 to move away from the limiting area, thereby unlocking the product. Moreover, the limiting surface 3212 can limit the crimping structure 4 when the crimping structure 4 is in the first position to prevent the crimping structure 4 from shaking.

[0051] Specifically, the crimping structure 4 includes a crimping base 41 and a crimping plate 42. The crimping base 41 is slidably disposed on the base 1 along the longitudinal direction of the base 1, and the driving roller 43 is disposed on the crimping base 41. The crimping plate 42 is disposed on the crimping base 41 and is located on one side of the limiting area along the longitudinal direction of the base 1. The adjusting screw 23 rotates relative to the driving seat 21, driving the first transmission block 31 to move transversely along the base 1. Under the cooperation of the driving roller 43 and the mating surface 321, the crimping plate 42 is driven to approach or move away from the limiting area. When the driving roller 43 abuts against the guiding plane 3211, the crimping base 41 is at the first position. At this time, the crimping plate 42 is at a position close to the limiting area, and the crimping plate 42 crimps on the product to fix the product. After the product is assembled, the adjusting screw 23 can be adjusted so that the driving roller 43 can abut against the wedge surface 3213 to push the crimping base 41 to move away from the second transmission block 32, driving the crimping plate 42 to move away from the limiting area to unlock the product.

[0052] Among them, as shown in combination with Figure 2 and Figure 3 a first guiding groove 311 is formed on the first transmission block 31, and the first guiding groove 311 extends along the longitudinal direction of the base 1. The bottom of the crimping base 41 is slidably connected to the base 1, and the crimping base 41 has two sliding arms extending into the first guiding groove 311. The crimping structure 4 further includes two elastic telescopic members 44, and each elastic telescopic member 44 is respectively connected to the first transmission block 31 and the corresponding sliding arm. A slide rail is further disposed on the base 1, and a slider is disposed at the bottom of the crimping base 41. The slide rail extends along the longitudinal direction of the base 1, and the slider is slidably disposed on the slide rail, making the crimping base 41 more stable and not easy to shake during movement. Moreover, by means of the two sliding arms being lapped in the first guiding groove 311, when unlocking the product, the crimping plate 42 is at a position away from the limiting area, and the elastic telescopic member 44 is in a compressed state. After the adjusting handle 22 is unlocked, under the action of the elastic restoring force of the elastic telescopic member 44, the crimping plate 42 can be pushed to move, and further the crimping base 41 can move along the base 1 to automatically return to the first position, being in the position of crimping the product.

[0053] Preferably, as shown in Figure 3As shown, there are multiple sets of the crimping structures 4. Among them, two sets of the crimping structures 4 arranged oppositely along the longitudinal direction of the base 1 form a group, and multiple groups of the crimping structures 4 are arranged at intervals in the transverse direction of the base 1. Through the multiple groups of the crimping structures 4, intermittent crimping can be formed along the length direction of the product, and the fixation of the product is more reliable.

[0054] Moreover, multiple groups of the crimping structures 4 are all connected to the same transmission structure 3. Among them, a plurality of mating surfaces 321 can be provided on the second transmission block 32, and the plurality of mating surfaces 321 are arranged in one-to-one correspondence with multiple sets of the crimping structures 4. Thus, by adjusting the adjusting screw 23, multiple sets of the crimping structures 4 can be driven to move synchronously, the operation is more convenient, and the positioning effect on the product is better.

[0055] In an embodiment, among multiple sets of the crimping structures 4, the shapes of the multiple crimping structures 4 may be slightly different. Specifically, the sizes and shapes of the crimping structures 4 can be replaced according to the size and shape of the product, and the positioning requirements of different products can be better adapted.

[0056] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention. Any equivalent structures made by using the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are similarly included in the patent protection scope of the present invention.

Claims

1. A positioning mechanism, characterized in that: include: Pedestal; The driving structure comprises an adjusting member rotatably arranged on the base; A transmission structure connected to the driving structure and having a movable stroke along the lateral direction of the base, wherein a transmission part is provided on the transmission structure; A crimping structure, movably disposed on the base and connected to the transmission structure, wherein the crimping structure is provided with a matching portion that contacts and matches with the transmission portion; When the adjusting member is rotated by an external force, the transmission structure is driven to move laterally along the base, and under the cooperation of the transmission part and the matching part, the crimping structure can be driven to move longitudinally along the base.

2. The positioning mechanism according to claim 1, characterized in that: One of the transmission part and the matching part is configured as a transmission roller, and the other one is configured as a matching surface, wherein at least a portion of the matching surface is configured to be inclined along the lateral direction of the base; When the transmission structure moves in the lateral direction of the base, the transmission roller may roll along the matching surface, so that the crimping structure is displaced in the longitudinal direction of the base.

3. The positioning mechanism according to claim 2, characterized in that: The driving structure comprises a driving seat and an adjusting handle, wherein the driving seat is arranged on the base, the adjusting member comprises an adjusting screw, the adjusting screw is rotatably arranged on the driving seat, and the adjusting handle is arranged at one end of the adjusting screw exposed outside the base; The adjusting screw is arranged to extend in the lateral direction of the base and is threadedly connected with the transmission structure.

4. The positioning mechanism according to claim 3, characterized in that: The transmission structure comprises: A first transmission block is fixed on the base and forms an interlayer with the base, and a top end of the first transmission block forms a limited area, and the limited area is suitable for accommodating products; A second transmission block is movably disposed in the interlayer and is threadedly connected to the adjusting screw; The matching surface is arranged on the second transmission block, and the transmission roller is arranged on the crimping structure.

5. The positioning mechanism according to claim 4, characterized in that: The mating surface comprises a guide plane extending along the transverse direction of the base, and a limit surface and a wedge surface respectively located at two ends of the guide plane, the limit surface extending along the longitudinal direction of the base, and the wedge surface being inclined along the longitudinal direction of the base.

6. The positioning mechanism according to claim 4, characterized in that: The crimping structure comprises: A crimping seat is slidably arranged on the base in the longitudinal direction of the base, and the transmission roller is arranged on the crimping seat; A crimping plate, disposed on the crimping seat and located on one side of the limiting area along the longitudinal direction of the base; The adjusting screw rotates relative to the driving seat to drive the first transmission block to move laterally along the base, and under the cooperation of the transmission roller and the matching surface, the crimping plate is driven to approach or move away from the limiting area.

7. The positioning mechanism according to claim 6, characterized in that: A first guide groove is formed on the first transmission block, and the first guide groove is extended along the longitudinal direction of the base; The bottom of the crimping seat is slidably connected to the base, and the crimping seat has two sliding arms extending into the first guide groove; The crimping structure further includes two elastic telescopic parts, each of which is respectively connected to the first transmission block and the corresponding sliding arm.

8. The positioning mechanism according to claim 4, characterized in that: A plurality of positioning protrusions are arranged on the top of the first transmission block, and the plurality of positioning protrusions are suitable for positioning and matching with a plurality of positioning holes on the product.

9. The positioning mechanism according to claim 1, characterized in that: The crimping structures are provided in multiple sets, wherein two sets of the crimping structures that are arranged opposite to each other in the longitudinal direction of the base form one set, and multiple sets of the crimping structures are arranged at intervals in the transverse direction of the base.

10. The positioning mechanism according to claim 9, characterized in that: A plurality of groups of the crimping structures are all connected to the same transmission structure.

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