Accurate positioning assembly of PCB drilling machine

Abstract

The utility model relates to the technical field of PCB drilling machine positioning, and discloses a PCB drilling machine accurate positioning assembly which comprises a frame, two fixing structures and a positioning structure, the two fixing structures are fixedly installed on the opposite faces of the frame respectively, and the positioning structure is connected with the upper portion of the frame. The frame comprises two brackets, four square blocks are fixedly mounted on the opposite surfaces of the two brackets, two front-end cross rods are fixedly mounted at the front ends of the two brackets, three laser transmitters are fixedly mounted on the bottom surface of the front-end cross rod on the upper side, and three laser receivers are fixedly mounted on the top surface of the front-end cross rod on the lower side; each fixing structure comprises a clamping fixer and two clamping plates, the clamping fixer is fixed on the inner side of the support, and the upper end and the lower end of the clamping fixer are respectively connected with three supporting cylinders. According to the accurate positioning assembly of the PCB drilling machine, the fixing structure and the positioning structure are arranged, so that the problems of inconsistent drilling sizes and inaccurate positions of the PCB drilling machine are effectively prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of PCB drilling machine positioning, in particular to a precise positioning component for a PCB drilling machine. Background Art

[0002] During the drilling of traditional PCB drilling machines, problems such as inconsistent hole sizes and deviations in hole positions often occur. The drilling process directly affects the quality of the PCB and easily causes the scrapping of the PCB board. There are two main reasons for the deviation in the drilling position or the inconsistent hole diameter: problems with the fixation of the PCB board or problems with the drilling positioning. In view of the above problems, a precise positioning component for a PCB drilling machine is proposed. Summary of the Utility Model

[0003] (1) Technical Problems to be Solved

[0004] In view of the deficiencies of the prior art, the utility model provides a precise positioning component for a PCB drilling machine, which has the advantages of quick clamping and precise positioning, and solves the problems of inconsistent hole sizes and deviations in hole positions that often occur when traditional PCB drilling machines drill holes.

[0005] (2) Technical Solutions

[0006] To achieve the above purposes of quick clamping and precise positioning, the utility model provides the following technical solutions:

[0007] A precise positioning component for a PCB drilling machine includes a frame, two fixing structures, and a positioning structure. The two fixing structures are respectively fixedly installed on opposite sides of the frame, and the positioning structure is connected above the frame.

[0008] The frame includes two brackets. Four square blocks are fixedly installed on the opposite sides of the two brackets. Two front crossbars are fixedly installed at the front ends of the two brackets. Three laser emitters are fixedly installed on the bottom surface of the upper front crossbar, and three laser receivers are fixedly installed on the top surface of the lower front crossbar;

[0009] Each fixing structure includes a clamping fixture and two clamping plates. The clamping fixture is fixed inside the bracket. Three support cylinders are respectively connected to the upper and lower ends of the clamping fixture. The opposite sides of the two clamping plates are respectively fixed to three corresponding support cylinders. A rubber pad is fixedly installed on each of the opposite surfaces of the two clamping plates. An automatic sensor is installed at the end of the support cylinder away from the clamping plate, and one automatic sensor is fixed to the three support cylinders. Each support cylinder is connected to a spring, and each rubber pad on each side is connected to a PCB board;

[0010] The positioning structure includes a positioning cover. Two positioning cylinders are fixedly installed at the upper end of the positioning cover, and the lower end of the positioning cover is respectively connected to the square blocks on both sides.

[0011] As a preferred technical solution of the present utility model, grooves are provided at the upper ends of both sides of the bracket. There are eight square blocks in total, and each square block has a chamfer at its upper end.

[0012] As a preferred technical solution of the present utility model, a front cross bar is fixedly installed on the upper and lower sides at the front end between the two brackets. Each upper laser emitter corresponds to each lower laser receiver one by one and is on the same vertical line.

[0013] As a preferred technical solution of the present utility model, a T-shaped through hole is provided at the front and rear ends of each clamping fixture, and three circular through holes are provided at the upper and lower ends. A support cylinder is inserted into each circular through hole, and a spring is sleeved on each support cylinder. Each spring is located at the upper end of the clamping plate and the lower end of the upper surface of the through hole of the clamping fixture.

[0014] As a preferred technical solution of the present utility model, each rubber pad is provided with a strip-shaped groove, and the two rubber pads are respectively clamped on both sides of the PCB board.

[0015] As a preferred technical solution of the present utility model, the positioning cover is clamped in the grooves on both sides of the upper end of the bracket. Square grooves are provided on both sides of the lower end of the positioning cover, and the positioning cover is clamped to the square block through the square grooves.

[0016] As a preferred technical solution of the present utility model, the two positioning cylinders are respectively distributed on both sides of the diagonal of the positioning cover. A circular through hole is provided in the middle of the positioning cylinder, and a chamfer is provided at the upper end of its through hole.

[0017] (III) Beneficial effects

[0018] Compared with the prior art, the present utility model provides a precise positioning component for a PCB drilling machine, which has the following beneficial effects:

[0019] 1. For this precise positioning component of the PCB drilling machine, by providing chamfers at the upper ends of the square blocks and grooves and positioning cylinders at the upper end of the bracket, the positioning structure is more easily fixed and replaced. Different positioning structures can be changed for different drilling positions, with convenient operation and high positioning accuracy.

[0020] 2. For this precise positioning component of the PCB drilling machine, by providing three groups of laser sensors on the front cross bar, the automatic sensor can be automatically compressed to achieve the purpose of clamping.

[0021] 3. The precise positioning component of this PCB drilling machine is provided with rubber pads on the surface of each clamping plate, and strip-shaped grooves are opened on the surface of the rubber pads, making the clamped PCB board more stable and more conducive to precise positioning during drilling.

[0022] 4. The precise positioning component of this PCB drilling machine is clamped with a clamping plate by opening T-shaped through holes at the front and rear ends of the clamping fixture, and a support cylinder is inserted, so that the clamping plate can move up and down, but cannot move forward, backward, left or right, to achieve the purpose of clamping. Brief Description of the Drawings

[0023] Figure 1 It is a schematic structural diagram of the present utility model;

[0024] Figure 2 It is a schematic sectional view of the structure of the present utility model;

[0025] Figure 3 It is a schematic diagram of the clamping structure in the present utility model;

[0026] Figure 4 It is a schematic diagram of the upper left part of the frame structure in the present utility model;

[0027] Figure 5 It is a schematic diagram of the lower left part of the frame structure in the present utility model;

[0028] Figure 6 It is a schematic diagram of the positioning structure in the present utility model.

[0029] In the figure: 1. Bracket; 2. Square block; 3. Front cross bar; 4. Clamping fixture; 5. Laser emitter; 6. Laser receiver; 7. Clamping plate; 8. Rubber pad; 9. Support cylinder; 10. Automatic sensor; 11. Spring; 12. PCB board; 13. Positioning cover; 14. Positioning cylinder. Detailed Description of the Preferred Embodiments

[0030] 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 creative efforts shall fall within the protection scope of the present utility model.

[0031] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0032] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0033] Embodiment 1

[0034] Please refer to Figure 1-2 , a precise positioning component for a PCB drilling machine, comprising a frame, two fixing structures, and a positioning structure. The two fixing structures are respectively fixedly installed on opposite sides of the frame, and the positioning structure is connected above the frame.

[0035] Embodiment 2

[0036] Please refer to Figure 4-5 , on the basis of the above embodiment, the frame includes two brackets 1. Grooves are respectively opened at the upper ends on both sides of each bracket 1. Four square blocks 2 are fixedly installed on the opposite sides of the two brackets 1. There are a total of eight square blocks 2, and each square block 2 has a chamfer at the upper end. A front cross bar 3 is fixedly installed on both the upper and lower sides at the front end between the two brackets 1. Three laser emitters 5 are fixedly installed on the bottom surface of the upper front cross bar 3, and three laser receivers 6 are fixedly installed on the top surface of the lower front cross bar 3. Each upper laser emitter 5 corresponds to each lower laser receiver 6 one by one and is on the same vertical line.

[0037] Embodiment 3

[0038] Please refer to Figure 3, on the basis of the above embodiments, each fixing structure includes a clamping fixture 4 and two clamping plates 7. The clamping fixture 4 is fixed to the inner side of the bracket 1. A T-shaped through hole is provided at the front and rear ends of the clamping fixture 4, and three circular through holes are respectively provided at the upper and lower ends. A support cylinder 9 is inserted into each circular through hole. One side of each of the two clamping plates 7 facing away from each other is fixed to three corresponding support cylinders 9. A rubber pad 8 is fixedly installed on each of the opposite surfaces of the two clamping plates 7. Each rubber pad 8 is provided with a strip-shaped groove. An automatic sensor 10 is installed at one end of the support cylinder 9 away from the clamping plate 7, and one automatic sensor 10 is fixed to the three support cylinders 9. A spring 11 is sleeved on each support cylinder 9. Each spring 11 is located at the upper end of the clamping plate 7 and the lower end of the upper surface of the through hole of the clamping fixture 4. The two rubber pads 8 on both sides are respectively clamped on both sides of the PCB board 12.

[0039] Embodiment 4

[0040] Please refer to Figure 6 , on the basis of the above embodiments, the positioning structure includes a positioning cover 13. Square grooves are provided on both sides of the lower end of the positioning cover 13. The positioning cover 13 is clamped in the grooves on both sides of the upper end of the bracket 1. The positioning cover 13 is clamped to the square block 2 through the square grooves. Two positioning cylinders 14 are fixedly installed at the upper end of the positioning cover 13. The two positioning cylinders 14 are respectively distributed on both sides of the diagonal line of the positioning cover 13. A circular through hole is provided in the middle of the positioning cylinder 14, and a chamfer is provided at the upper end of its through hole.

[0041] In summary, for this PCB drilling machine precise positioning component, by providing a chamfer at the upper end of the square block 2 and providing grooves and positioning cylinders 14 at the upper end of the bracket 1, the positioning structure is more easily fixed and replaced. Different positioning structures can be replaced for different drilling positions, with convenient operation and high positioning accuracy.

[0042] For this PCB drilling machine precise positioning component, by providing three groups of laser sensors on the front cross bar 3, as well as the automatic sensor 10 and the spring 11 in the fixing structure, when the PCB board 12 is transported to a position where just one laser receiver 6 cannot receive a signal, the automatic sensor 10 contracts to achieve clamping and fixing. When the drilling is completed, the automatic sensor 10 is powered off, and through the deformation of the spring, the automatic sensor 10 returns to its initial position.

[0043] For this PCB drilling machine precise positioning component, by providing rubber pads 8 on the surface of each clamping plate 7 and providing strip-shaped grooves on the surface of the rubber pads 8, the friction force is increased to prevent the PCB board 12 from sliding, making the clamping more stable and the drilling more accurate.

[0044] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A PCB drilling rig precise positioning assembly, comprising a frame, two fixed structures and a positioning structure, wherein the two fixed structures are respectively fixedly mounted on opposite sides of the frame, and the positioning structure is connected to the upper side of the frame, characterized in that: The frame includes two brackets, four square blocks are fixedly installed on the opposite sides of the two brackets, two front cross bars are fixedly installed on the front ends of the two brackets, three laser transmitters are fixedly installed on the bottom surface of the upper front cross bar, and three laser receivers are fixedly installed on the top surface of the lower front cross bar; Each fixing structure includes a clamping fixture and two clamping plates, the clamping fixture is fixed on the inner side of the bracket, the upper and lower ends of the clamping fixture are respectively connected to three supporting cylinders, the opposite sides of the two clamping plates are respectively fixed to the three corresponding supporting cylinders, and the opposite surfaces of the two clamping plates are respectively fixed with a rubber pad, an automatic sensor is installed at one end of the supporting cylinder away from the clamping plate, and an automatic sensor is fixed to the three supporting cylinders, each of the supporting cylinders is connected to a spring, and each side of the rubber pad is connected to a PCB board; The positioning structure comprises a positioning cover, the upper end of which is fixedly mounted with two positioning cylinders, and the lower end of which is respectively connected with square blocks on both sides.

2. A PCB drilling rig precise positioning assembly according to claim 1, characterized in that: Grooves are provided at the upper ends of both sides of the bracket, and there are eight square blocks in total, and the upper end of each square block is chamfered.

3. A PCB drilling rig precise positioning assembly according to claim 1, characterized in that: A front cross bar is fixedly installed on both upper and lower sides of the front end between the two brackets, and each upper laser transmitter corresponds to each lower laser receiver one by one and are on the same vertical line.

4. A PCB drilling rig precise positioning assembly according to claim 1, characterized in that: Each of the clamping fixtures is provided with a T-shaped through hole at the front and rear ends, and three circular through holes at the upper and lower ends. A supporting cylinder is inserted into each circular through hole, and each supporting cylinder is sleeved with a spring. Each spring is located at the upper end of the clamp and the lower end of the upper surface of the through hole of the clamping fixture.

5. The PCB drilling rig precise positioning assembly according to claim 1, characterized in that: Each of the rubber pads is provided with a strip groove, and the rubber pads on both sides are respectively clamped on both sides of the PCB board.

6. A PCB drilling rig precise positioning assembly according to claim 2, characterized in that: The positioning cover is clamped in the grooves on both sides of the upper end of the bracket, and square grooves are provided on both sides of the lower end of the positioning cover. The positioning cover is clamped with the square block through the square grooves.

7. The PCB drilling rig precise positioning assembly according to claim 1, characterized in that: The two positioning cylinders are respectively distributed on both sides of the diagonal line of the positioning cover. A circular through hole is opened in the middle of the positioning cylinder, and a chamfer is opened at the upper end of the through hole.

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