Circuit board grinding and conveying mechanism

Abstract

The utility model provides a circuit board grinding and conveying mechanism which comprises a conveying unit, the conveying unit comprises two parallel main beams, the inner sides of the main beams are provided with conveying belts, and the inner side walls of the main beams are provided with rubber cushions; the adjusting and clamping unit comprises a two-way lead screw assembly, the two-way lead screw assembly comprises a double-thread screw and a guide rail, the two ends of the double-thread screw are rotationally connected to the fixed support, the middle of the double-thread screw is rotationally connected to the middle support, and the two ends of the double-thread screw are rotationally connected to the guide rail. Supporting frames in threaded connection with the double-thread screws are arranged on the two sides of the middle support correspondingly, and the supporting frames are in sliding connection with the guide rails. The main beam is fixedly connected with one supporting frame in the bidirectional lead screw assembly. The first driving unit is in transmission connection with the double-thread screw; and the second driving unit is in transmission connection with the conveying belt. According to the conveying mechanism, the integrated design of conveying and positioning is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit board grinding processing, in particular to a circuit board grinding conveying mechanism. Background Art

[0002] During the processing of existing circuit boards, one of the processes is grinding, that is, grinding the surface of the circuit board to remove burrs and protrusions, etc., to facilitate later processing; currently, a conveying mechanism is generally used to convey the circuit board to a set position, and then a positioning mechanism is used to fix the circuit board, and finally a grinding device is used to complete the grinding process; however, most of the current conveying mechanisms can only convey circuit boards of specified sizes, which is inconvenient to use; in addition, an additional positioning mechanism is required to fix the circuit board, resulting in a bloated overall structure of the equipment. Utility Model Content

[0003] In view of this, the utility model provides a circuit board grinding and conveying mechanism, which can solve one of the above problems to at least a certain extent.

[0004] The technical solution of the utility model is achieved in this way:

[0005] A circuit board grinding and conveying mechanism, comprising:

[0006] A conveying unit, the conveying unit comprising two parallel main beams, a conveying belt is provided on the inner side of the main beam, and a rubber buffer pad is provided on the inner side wall of the main beam;

[0007] An adjusting clamping unit, the adjusting clamping unit comprises a bidirectional lead screw assembly, the bidirectional lead screw assembly comprises a double-headed screw and a guide rail, the two ends of the double-headed screw are rotatably connected to a fixed support, the middle part of the double-headed screw is rotatably connected to an intermediate support, and both sides of the intermediate support are respectively provided with support frames threadedly connected to the double-headed screw, and the support frames are slidably connected to the guide rail; the main beam is fixedly connected to one of the support frames in the bidirectional lead screw assembly;

[0008] A first driving unit, the first driving unit is drivingly connected to the double-headed screw;

[0009] A second driving unit is drivingly connected to the conveyor belt.

[0010] As a further optional scheme for the circuit board grinding plate conveying mechanism, the bidirectional screw assembly is provided with two groups, the double-headed screws in the two groups of bidirectional screw assemblies are arranged in parallel, and the two double-headed screws are connected by a transmission belt or a transmission chain; a main beam is fixedly connected to each support frame in the two groups of bidirectional screw assemblies; the first drive unit includes a first motor, and the first motor is transmission-connected to one of the double-headed screws.

[0011] As a further optional solution of the circuit board grinding plate conveying mechanism, the main beam is provided with a plurality of rotatable transmission wheels, the conveyor belt is wound around the transmission wheels, one of the transmission wheels is defined as an active transmission wheel, and a polygonal transmission hole is coaxially opened on the active transmission wheel;

[0012] The second driving unit includes a transmission shaft, which is slidably sleeved in the polygonal transmission hole of the active transmission wheel on the two main beams. The outer contour of the transmission shaft matches the shape of the polygonal transmission hole. The two ends of the transmission shaft are respectively rotatably connected to two mounting seats, and the transmission shaft is transmission connected to the second motor.

[0013] As a further optional solution of the circuit board grinding plate conveying mechanism, an extension bracket is provided at the bottom of the main beam, and the active transmission wheel is rotatably arranged on the extension bracket.

[0014] As a further optional solution of the circuit board grinding plate conveying mechanism, the polygonal transmission hole is hexagonal, and the cross section of the transmission shaft is hexagonal.

[0015] As a further optional solution of the circuit board grinding and conveying mechanism, the main beam and the support frame are connected by bolts.

[0016] The beneficial effects of the utility model are as follows: the adjusting clamping unit can adjust the distance between the two main beams, thereby facilitating the transportation of circuit boards of different sizes; at the same time, the adjusting clamping unit can also enable the two main beams to clamp and position the circuit boards, thereby realizing an integrated design of transportation and positioning, simplifying the equipment structure, and avoiding the complexity of docking between the transportation mechanism and the positioning mechanism in the prior art.

[0017] Other optional purposes and advantages of the present invention are fully reflected through the following specific implementation methods and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 This is a structural schematic diagram of a circuit board grinding and conveying mechanism of the utility model;

[0020] Figure 2 It is an exploded schematic diagram of a circuit board grinding and conveying mechanism of the utility model;

[0021] Figure 3is a schematic diagram of a connection mechanism between the second driving unit and the conveyor belt;

[0022] Figure 4 It is a structural schematic diagram of the main beam clamping the circuit board.

[0023] In the figure: 100, circuit board;

[0024] 1. Conveying unit; 11. Main beam; 111. Rubber cushion; 12. Conveying belt; 13. Transmission wheel; 131. Active transmission wheel; 14. Extension bracket;

[0025] 2. Adjustment and clamping unit; 21. Bidirectional screw assembly; 211. Double-head screw; 212. Guide rail; 213. Fixed support; 214. Intermediate support; 215. Support frame; 22. Transmission belt;

[0026] 3. A first driving unit;

[0027] 4. Second driving unit; 41. Transmission shaft; 42. Mounting seat; 43. Second motor. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "rear", "vertical", "horizontal", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention 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, and therefore cannot be understood as a limitation on the present invention.

[0030] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like 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 a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" and "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0032] refer to Figure 1-4 , an embodiment of the present application shows a circuit board grinding conveying mechanism, including a conveying unit 1, an adjusting clamping unit 2, a first driving unit 3 and a second driving unit 4;

[0033] The conveying unit 1 includes two parallel main beams 11, a conveyor belt 12 is provided on the inner side of the main beam 11, and a rubber buffer pad 111 is provided on the inner side wall of the main beam 11; the adjusting and clamping unit 2 includes a bidirectional screw assembly 21, the bidirectional screw assembly 21 includes a double-headed screw 211 and a guide rail 212, both ends of the double-headed screw 211 are rotatably connected to a fixed support 213, the middle part of the double-headed screw 211 is rotatably connected to an intermediate support 214, and support frames 215 threadedly connected to the double-headed screw 211 are respectively provided on both sides of the intermediate support 214, and the support frames 215 are slidably connected to the guide rail 212; the main beam 11 is fixedly connected to one of the support frames 215 in the bidirectional screw assembly 21; the first drive unit 3 is transmission-connected to the double-headed screw 211; the second drive unit 4 is transmission-connected to the conveyor belt 12.

[0034] Specifically, the double-headed screw 211 has two threaded sections with the same pitch and opposite rotation directions, and the two support frames 215 are respectively arranged on the two threaded sections. When the first driving unit 3 drives the double-headed screw 211 to rotate, the two support frames 215 move along the axial direction of the double-headed screw 211 to achieve the two support frames 215 being relatively close to or relatively far away from each other, thereby adjusting the distance between the two main beams 11;

[0035] In this way, the adjusting clamping unit 2 can adjust the distance between the two main beams 11, so as to facilitate the transportation of circuit boards 100 of different sizes; wherein, when realizing the transportation of the circuit board 100, the distance between the two main beams 11 should be slightly larger than the width of the circuit board 100, so that the circuit board 100 can be mounted on the conveyor belt 12, and the two main beams 11 do not clamp the circuit board 100; and when the circuit board 100 moves to the preset position, the conveyor belt 12 stops conveying, and the adjusting clamping unit 2 further reduces the distance between the two main beams 11, so that the two main beams 11 can clamp the circuit board 100, realizing the integrated design of transportation and positioning; wherein, the rubber buffer pad 111 can provide a buffering effect to avoid clamping the circuit board 100.

[0036] In some embodiments, in order to achieve stable support for the main beam 11, refer to Figure 1 and Figure 2 The bidirectional screw assembly is provided with two groups, the double-headed screws 211 in the two groups of bidirectional screw assemblies are arranged in parallel, and the two double-headed screws 211 are connected by a transmission belt 22 or a transmission chain; a main beam 11 is fixedly connected to each support frame 215 in the two groups of bidirectional screw assemblies 21; the first driving unit 3 includes a first motor, and the first motor is connected to one of the double-headed screws 211.

[0037] In some embodiments, in order to realize synchronous conveying of the conveyor belts 12 on the two main beams 11, refer to Figure 2 and Figure 3 The main beam 11 is provided with a plurality of rotatable transmission wheels 13, the conveyor belt 12 is wound around the transmission wheels 13, one of the transmission wheels 13 is defined as an active transmission wheel 131, and a polygonal transmission hole is coaxially opened on the active transmission wheel 131; the second driving unit 4 includes a transmission shaft 41, the transmission shaft 41 is slidably sleeved in the polygonal transmission holes of the active transmission wheels 131 on the two main beams 11, the outer contour of the transmission shaft 41 matches the shape of the polygonal transmission hole, the two ends of the transmission shaft 41 are respectively rotatably connected to two mounting seats 42, and the transmission shaft 41 is transmission-connected to the second motor 43.

[0038] In this embodiment, the transmission shaft 41 and the active transmission wheel 131 are relatively fixed in the circumferential direction, but can move relatively in the axial direction; in this way, when the adjusting clamping unit 2 drives the main beam 11 to move, the main beam 11 drives the active transmission wheel 131 to move axially along the transmission shaft 41. When the position of the main beam 11 is adjusted, the second motor 43 drives the transmission shaft 41 to rotate, and the transmission shaft 41 can drive the active transmission wheel 131 to rotate, thereby realizing the conveyor belt 12 to transport the circuit board 100.

[0039] In some embodiments, for ease of setting, reference Figure 3 The main beam 11 is provided with an extension bracket 14 at the bottom, and the active transmission wheel 131 is rotatably arranged on the extension bracket 14. In this way, the transmission shaft 41 does not need to pass through the main beam 11.

[0040] In the above solution, the polygonal transmission hole is, for example, a quadrilateral, a pentagon, a hexagon, etc., and the cross-sectional shape of the transmission shaft 41 is adapted thereto.

[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A circuit board grinding conveying mechanism, characterized in that: include: A conveying unit, the conveying unit comprising two parallel main beams, a conveying belt is provided on the inner side of the main beam, and a rubber buffer pad is provided on the inner side wall of the main beam; An adjusting clamping unit, the adjusting clamping unit comprises a bidirectional lead screw assembly, the bidirectional lead screw assembly comprises a double-headed screw and a guide rail, the two ends of the double-headed screw are rotatably connected to a fixed support, the middle part of the double-headed screw is rotatably connected to an intermediate support, and both sides of the intermediate support are respectively provided with support frames threadedly connected to the double-headed screw, and the support frames are slidably connected to the guide rail; the main beam is fixedly connected to one of the support frames in the bidirectional lead screw assembly; A first driving unit, the first driving unit is drivingly connected to the double-headed screw; A second driving unit is drivingly connected to the conveyor belt.

2. The circuit board grinding conveying mechanism according to claim 1, characterized in that: The bidirectional screw assembly is provided with two groups, the double-headed screws in the two groups of bidirectional screw assemblies are arranged in parallel, and the two double-headed screws are connected by a transmission belt or a transmission chain; a main beam is fixedly connected to each support frame in the two groups of bidirectional screw assemblies; the first drive unit includes a first motor, and the first motor is connected to one of the double-headed screws.

3. The circuit board grinding conveying mechanism according to claim 1, characterized in that: The main beam is provided with a plurality of rotatable transmission wheels, the conveyor belt is wound around the transmission wheels, one of the transmission wheels is defined as an active transmission wheel, and a polygonal transmission hole is coaxially opened on the active transmission wheel; The second driving unit includes a transmission shaft, which is slidably sleeved in the polygonal transmission hole of the active transmission wheel on the two main beams. The outer contour of the transmission shaft matches the shape of the polygonal transmission hole. The two ends of the transmission shaft are respectively rotatably connected to two mounting seats, and the transmission shaft is transmission connected to the second motor.

4. The circuit board grinding conveying mechanism according to claim 3, characterized in that: An extension bracket is provided at the bottom of the main beam, and the active transmission wheel is rotatably arranged on the extension bracket.

5. The circuit board grinding conveying mechanism according to claim 3, characterized in that: The polygonal transmission hole is hexagonal, and the cross section of the transmission shaft is hexagonal.

6. The circuit board grinding conveying mechanism according to claim 1, characterized in that: The main beam is connected to the support frame by bolts.

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