Guide mechanism and circuit board punching die

Abstract

The utility model relates to the technical field of circuit board punching, in particular to a guide mechanism and a circuit board punching die, which are characterized in that the side surface of a guide rod is provided with a placement groove, the guide rod can be inserted into a guide sleeve, the inner side surface of the placement groove is provided with a support shaft, the surface of a support base is provided with a groove, and the side surface of the groove is provided with a support rod; the surface of the supporting rod is sleeved with a guide wheel. The guide mechanism and the circuit board punching die have the advantages that when the guide mechanism and the circuit board punching die are used, when the guide rod is inserted into the guide sleeve to move up and down, the guide wheel is arranged on the side face of the guide rod in a matched mode, and when the guide rod is inserted into the guide sleeve, the guide wheel can be driven to rotate around the supporting rod; the friction force between the guide rod and the inner surface of the guide sleeve is reduced, so that the abrasion of the surface of the guide rod can be reduced, and the service life of the guide rod in use can be prolonged.

Description

Technical Field

[0001] The utility model relates to the field of circuit board punching, in particular to a guide mechanism and a circuit board punching die. Background Art

[0002] Circuit board punching molds, also known as PCB punching molds or FPC punching molds, are molds specially used for processing printed circuit boards (PCBs) or flexible circuit boards (FPCs). Their main function is to cut the circuit board sheet into a predetermined shape and size and make necessary openings (such as component mounting holes, sockets, etc.) through a punching process during the circuit board manufacturing process. The design and manufacture of this mold requires extremely high accuracy and precision to ensure that the size of the circuit board is accurate, and the edges are smooth and burr-free, without affecting the electrical performance.

[0003] China Patent Network CN219599682U discloses a circuit board punching die, including an upper film fixing plate, a punch fixing plate and a movable die plate, the bottom end of the upper film fixing plate is provided with a punch fixing plate, the bottom end of the punch fixing plate is provided with a lower die fixing plate, and the bottom end of the lower die fixing plate is provided with a blanking port. The utility model is provided with an auxiliary structure, and when punching, the flexible circuit board, the blade baffle, the blade mounting plate, the step-difference punching blade and the FPC cutting blade are used in coordination, so that the movable die plate and the lower die plate can be punched 6 / 13 / 14, and the FPC scraps, the step-difference punching offset part and the FPC are completely separated. After the scraps are removed, by observing the residual offset mark on the micro-mucosa during each punching process, it can be determined that this step of punching exceeds the customer specification requirements and is determined as an NG product, thereby preventing the outflow of step-difference defective products, resulting in the failure of the customer's installation function and causing major customer complaints.

[0004] However, the guide rod in the guide structure in the above technical solution is in direct contact with the guide sleeve. When used for a long time, greater friction is generated between the guide rod and the guide sleeve, which may increase the gap between the guide rod and the guide sleeve for a long time, thereby possibly affecting the problem of slight deviation of the guide rod in the guide sleeve. For this reason, the utility model proposes a guide mechanism and a circuit board punching mold to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of the utility model is to provide a guide mechanism and a circuit board punching die to solve the problems raised in the above background technology.

[0006] To achieve the above object, the utility model provides the following technical solution: a guide mechanism, the guide mechanism comprising: a guide rod, a placement groove is provided on the side of the guide rod, the guide rod can be inserted into the guide sleeve, and a support shaft is provided on the inner side of the placement groove;

[0007] A support base is provided, a groove is provided on the surface of the support base, a support rod is provided on the side of the groove, and a guide wheel is sleeved on the surface of the support rod.

[0008] Preferably, a lifting groove is provided on the surface of the guide rod, a positioning bearing is provided in the lifting groove, and a moving screw is fixedly connected to the inner ring surface of the positioning bearing.

[0009] Preferably, the placement grooves are provided in a plurality of groups, and the plurality of groups of placement grooves are arranged in a circle equidistant from the center point of the end surface of the guide rod, and lifting holes are provided on the surface of the placement grooves.

[0010] Preferably, a lifting ring is threadedly connected to the surface of the movable screw, a sliding block is provided on the side of the lifting ring, the sliding block is inserted into the lifting hole, and the sliding block can slide up and down in the lifting hole.

[0011] Preferably, the support base is sleeved on the support shaft, the support base can rotate around the support shaft, and the guide wheel can rotate around the support rod.

[0012] Preferably, a fixed plate is provided on the back of the support base, a slide groove is provided on the surface of the fixed plate, a positioning groove is provided on the side of the slide groove, the slide groove and the positioning groove are arranged at an inclined angle as a whole, the slider can slide in the slide groove, a limit block is provided on the side of the slider, the limit block is inserted into the positioning groove, and the limit block can slide along the positioning groove.

[0013] A circuit board punching die comprises the guide mechanism.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The guide mechanism and circuit board punching mold proposed by the utility model can, when the guide rod is inserted into the guide sleeve for up and down displacement during use, cooperate with the guide wheel provided on the side of the guide rod. When the guide rod is inserted into the guide sleeve, the guide wheel can be driven to rotate around the support rod, so that the friction between the guide rod and the inner surface of the guide sleeve is reduced, thereby reducing the wear on the surface of the guide rod, and thus improving the service life of the guide rod during use. This avoids the problem of large friction between the guide rod and the guide sleeve when used for a long time, which may increase the gap between the guide rod and the guide sleeve for a long time, thereby causing the guide rod to slightly deviate in the guide sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 It is a partial cross-sectional view of the structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the internal structure of the utility model;

[0019] Figure 4 for Figure 3 Enlarged structural diagram at A in the middle.

[0020] In the figure: 1. guide rod; 2. placement groove; 3. guide sleeve; 4. support shaft; 5. support base; 6. groove; 7. support rod; 8. guide wheel; 9. lifting groove; 10. positioning bearing; 11. moving screw;

[0021] 12. Lifting hole; 13. Lifting ring; 14. Sliding block; 16. Fixing plate; 17. Sliding groove; 18. Positioning groove;

[0022] 19. Limit block. DETAILED DESCRIPTION

[0023] In order to make the purpose and technical solution of the utility model clearly and completely described, and the advantages more clearly understood, the embodiments of the utility model are further described in detail in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are part of the embodiments of the utility model, not all of the embodiments, and are only used to explain the embodiments of the utility model, and are not used to limit the embodiments of the utility model. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Embodiment 1

[0025] See also Figure 1-Figure 4 The utility model provides a technical solution: a guide mechanism, the guide mechanism comprises: a guide rod 1, a placement groove 2 is provided on the side of the guide rod 1, the guide rod 1 can be inserted into a guide sleeve 3, and a support shaft 4 is provided on the inner side of the placement groove 2; a support base 5, a groove 6 is provided on the surface of the support base 5, a support rod 7 is provided on the side of the groove 6, and a guide wheel 8 is sleeved on the surface of the support rod 7, a circuit board punching mold, including the guide mechanism;

[0026] When the guide rod 1 is inserted into the guide sleeve 3 for up and down displacement during use, the guide wheel 8 provided on the side of the guide rod 1 can cooperate. When the guide rod 1 is inserted into the guide sleeve 3, the guide wheel 8 can be driven to rotate around the support rod 7, so that the friction between the guide rod 1 and the inner surface of the guide sleeve 3 can be reduced, thereby reducing the wear on the surface of the guide rod 1, and thus the life of the guide rod 1 during use can be improved.

[0027] Embodiment 2

[0028] On the basis of the first embodiment, in order to reduce the friction between the guide rod 1 and the guide sleeve 3, a guide wheel 8 is provided, a plurality of placement grooves 2 are provided, and the plurality of placement grooves 2 are arranged in a circular shape equidistant from the center point of the end surface of the guide rod 1, and a lifting hole 12 is provided on the surface of the placement groove 2, and the support base 5 is sleeved on the support shaft 4, and the support base 5 can rotate around the support shaft 4, and the guide wheel 8 can rotate around the support rod 7;

[0029] When in use, the guide wheel 8 arranged on the side of the guide rod 1 can reduce the friction between the guide rod 1 and the guide sleeve 3, and the support base 5 can be placed inside the placement groove 2. The rotation of multiple sets of guide wheels 8 around the support rod 7 can reduce the friction between the guide rod 1 and the guide sleeve 3 on the one hand, and facilitate the guide rod 1 to be pulled out of the guide sleeve 3 on the other hand.

[0030] Embodiment 3

[0031] On the basis of the second embodiment, in order to facilitate improving the stability of the guide rod 1, a movable screw 11 is provided, a lifting groove 9 is opened on the surface of the guide rod 1, a positioning bearing 10 is provided in the lifting groove 9, and the inner ring surface of the positioning bearing 10 is fixedly connected with the movable screw 11. When in use, the setting of the positioning bearing 10 can facilitate the rotation of the movable screw 11 in the lifting groove 9. The movable screw 11 is located inside the lifting groove 9 and will not protrude from the end face of the guide rod 1.

[0032] A lifting ring 13 is screwed on the surface of the movable screw rod 11, and a slider 14 is arranged on the side of the lifting ring 13. The slider 14 is inserted into the lifting hole 12, and the slider 14 can slide up and down in the lifting hole 12. A fixing plate 16 is arranged on the back of the support base 5, and a slide groove 17 is provided on the surface of the fixing plate 16. A positioning groove 18 is provided on the side of the slide groove 17. The slide groove 17 and the positioning groove 18 are arranged at an inclined angle as a whole, and the slider 14 can slide in the slide groove 17. A limiting block 19 is arranged on the side of the slider 14, and the limiting block 19 is inserted into the positioning groove 18, and the limiting block 19 can slide along the positioning groove 18;

[0033] During use, when the guide rod 1 and the guide sleeve 3 may also wear on the surface of the guide wheel 8 due to long-term use, the lifting ring 13 can be displaced in the lifting groove 9 by rotating the movable screw 11, so that the slider 14 can be driven to move along the lifting hole 12 through the displacement of the lifting ring 13. Because the slide groove 17 is set at an inclined angle, when one end of the slider 14 moves upward along the slide groove 17, the support base 5 can be rotated around the support shaft 4. An angle, so that the guide wheel 8 can always fit the inner wall of the guide sleeve 3. The movement of the fixing plate 16 in the positioning groove 18 can prevent the slider 14 from detaching from the slide groove 17, and also prevent the support base 5 from rotating at will.

[0034] In actual use, when the guide rod 1 is inserted into the guide sleeve 3 for up and down displacement, the guide wheel 8 provided on the side of the guide rod 1 can cooperate. When the guide rod 1 is inserted into the guide sleeve 3, the guide wheel 8 can be driven to rotate around the support rod 7, so that the friction between the guide rod 1 and the inner surface of the guide sleeve 3 is reduced, thereby reducing the wear on the surface of the guide rod 1, and thus improving the life of the guide rod 1 during use. This avoids the problem of large friction between the guide rod 1 and the guide sleeve 3 when used for a long time, which may increase the gap between the guide rod 1 and the guide sleeve 3 for a long time, thereby causing the guide rod 1 to slightly deviate in the guide sleeve 3.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A guiding mechanism, characterized in that: The guide mechanism comprises: a guide rod (1), a placement groove (2) is provided on the side of the guide rod (1), the guide rod (1) can be inserted into a guide sleeve (3), and a support shaft (4) is provided on the inner side of the placement groove (2); A support base (5) is provided with a groove (6) on the surface of the support base (5), a support rod (7) is provided on the side of the groove (6), and a guide wheel (8) is sleeved on the surface of the support rod (7).

2. A guide mechanism according to claim 1, characterized in that: The guide rod (1) is provided with a lifting groove (9) on its surface, a positioning bearing (10) is arranged in the lifting groove (9), and a moving screw rod (11) is fixedly connected to the inner ring surface of the positioning bearing (10).

3. A guide mechanism according to claim 1, characterized in that: The placement grooves (2) are provided in a plurality of groups, and the plurality of groups of placement grooves (2) are arranged in a circular shape at equal distances with respect to the center point of the end surface of the guide rod (1), and lifting holes (12) are provided on the surfaces of the placement grooves (2).

4. A guide mechanism according to claim 2, characterized in that: A lifting ring (13) is screwed onto the surface of the movable screw rod (11), a sliding block (14) is arranged on the side of the lifting ring (13), the sliding block (14) is inserted into the lifting hole (12), and the sliding block (14) can slide up and down in the lifting hole (12).

5. A guide mechanism according to claim 1, characterized in that: The support base (5) is sleeved on the support shaft (4); the support base (5) can rotate around the support shaft (4); and the guide wheel (8) can rotate around the support rod (7).

6. A guide mechanism according to claim 1, characterized in that: The back of the support base (5) is provided with a fixing plate (16), the surface of the fixing plate (16) is provided with a slide groove (17), the side of the slide groove (17) is provided with a positioning groove (18), the slide groove (17) and the positioning groove (18) are arranged at an inclined angle as a whole, the slider (14) can slide in the slide groove (17), the side of the slider (14) is provided with a limiting block (19), the limiting block (19) is inserted into the positioning groove (18), and the limiting block (19) can slide along the positioning groove (18).

7. A circuit board punching die, characterized in that: The invention comprises the guiding mechanism described in any one of claims 1 to 6.

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