Conveying mechanism for circuit board

Abstract

The utility model relates to a circuit board conveying mechanism which is characterized in that the circuit board conveying mechanism comprises a conveying unit, and the conveying unit comprises a rack, a conveying assembly arranged on the rack, a stopping assembly, a fixing assembly and a sensing assembly; external materials are conveyed through the conveying assembly, when the sensing assembly detects the external materials, the stopping assembly intercepts the materials, and the fixing assembly compresses the materials. The fixing assembly comprises a first driving assembly, a connecting shaft and a plurality of fixing arms, the connecting shaft is rotationally installed on the rack, the fixing arms are installed on the connecting shaft, and when the first driving assembly drives the connecting shaft to rotate forwards or reversely, the fixing arms are driven to rotate synchronously, and external materials are pressed or loosened. According to the utility model, the circuit board is stopped from being transported through the stopping assembly, the circuit board is fixed through the fixing assembly, fine processing of the circuit board is facilitated, the plurality of fixing arms are synchronously lifted up or pressed down through the connecting shaft so as to compress, fix or loosen the circuit board, and the circuit board clamping device has the advantages of short moving path and high efficiency.

Description

TECHNICAL FIELD

[0001] The utility model relates to electronic manufacturing equipment technical field especially discloses a conveying mechanism of circuit board spare. BACKGROUND

[0002] The conveying mechanism is widely applied to each link of circuit board (PCB) manufacturing and assembly, including production, assembly, detection and the like of the circuit board, and the requirements of different application scenarios to the conveying mechanism are also different, for example, the conveying mechanism needs to have a high-precision positioning mechanism in front of a high-precision detection device. The Chinese utility model patent with the application number 202122460530.2 is provided with a blocking arm at the position below the two tracks, the blocking arm is driven to rotate 90 degrees by a cylinder to block the PCB transmission, but the PCB board cannot be fixed, there is a risk of position deviation of the PCB board during processing, and the rotating path of the blocking arm is too long, and the efficiency is low; the Chinese utility model patent with the application number 202320293716. X is provided with a plurality of moving plates on the conveying line, the moving plates are provided with supporting columns and positioning mechanisms, the supporting columns are fixed with placing plates, and the PCB is clamped on the placing plates by the positioning mechanisms to realize the fixation of the PCB, but the device structure is complex. With the continuous miniaturization and high performance of electronic products, the size of the PCB is getting smaller and smaller, and the integration is getting higher and higher, which puts forward higher requirements on the precision and stability of the conveying mechanism. CONTENT OF THE UTILITY MODEL

[0003] In order to overcome the shortcomings and deficiencies in the prior art, the purpose of the utility model is to provide a conveying mechanism of circuit board spare.

[0004] In order to achieve the above-mentioned purpose, the conveying mechanism of circuit board spare of the utility model is characterized by comprising a conveying unit, the conveying unit comprises a rack, a conveying assembly, a blocking assembly, a fixing assembly and a sensing assembly arranged on the rack; external materials are conveyed through the conveying assembly, when the sensing assembly detects the external materials, the blocking assembly intercepts the materials, and the fixing assembly compresses the materials; the fixing assembly comprises a first driving assembly, a connecting shaft and a plurality of fixing arms, the connecting shaft is rotatably installed on the rack, the plurality of fixing arms are installed on the connecting shaft, and when the first driving assembly drives the connecting shaft to rotate forward or reversely, the plurality of fixing arms are driven to rotate synchronously, so as to compress or loosen the external materials.

[0005] Further, the plurality of fixing arms are located above the external materials, the fixing arm has a straight arm and a compression arm, one end of the straight arm is connected with the connecting shaft, and the other end protrudes towards the external materials; the compression arm is bent from the straight arm, and the compression arm has an outward convex curved surface for abutting against the non-functional edge part of the compressed external materials.

[0006] Further, the connecting shaft comprises a main body part and a mounting part, the main body part is non-circular in cross section, and the mounting part is circular in cross section; a plurality of fixing arms are sleeved outside the main body part, and the connecting shaft is rotatably mounted on the rack through the mounting part.

[0007] Further, the number of the stop components is two, and the stop components are located at two ends of the external material respectively; the stop component comprises a stop arm and a second driving component for driving the stop arm to move.

[0008] Further, the stop arm is provided with a mounting plate connected with the second driving component, and a protruding block bent and extended from the mounting plate and protruding towards the external material.

[0009] Further, the conveying unit is provided with a protection component, and the protection component comprises a mounting table and a protection plate; one side of the mounting table is mounted on the rack, and the other side is provided with the protection plate; the protection plate comprises a flat plate connected with the mounting table and a shielding plate bent from the flat plate; the shielding plate is provided with an arc-shaped through hole, the roller is located below the flat plate, and one end of the roller extends out of the arc-shaped through hole and is used for supporting the external material.

[0010] Further, the number of the protection components is multiple, and a groove for accommodating the stop arm is arranged between two protection components located on both sides of the stop arm, so that the external material stops conveying when the stop arm extends out of the groove.

[0011] Further, the conveying unit comprises a third driving component and a roller, the third driving component drives the roller to rotate, and the external material placed on the roller moves forward along with the rotation of the roller.

[0012] Further, the roller comprises a driving roller and a plurality of driven rollers, and the driving roller and the driven rollers are connected with each other through a chain; the third driving component drives the driving roller to rotate, and the driving roller drives the driven rollers to rotate synchronously.

[0013] Further, the number of the conveying units is two, and the conveying units are used for supporting two ends of the external material respectively; or one conveying unit cooperates with an external guide rail, one end of the external material is supported by the conveying unit, and the other end is supported by the guide rail.

[0014] The PCB is stopped by the stop component, and the PCB is fixed by the fixing component, so that subsequent fine processing is facilitated. The number of the fixing arms is multiple, the contact area with the PCB is small, and the fixing arms are suitable for PCBs of different sizes. Moreover, the multiple fixing arms are fixed on the same shaft, and synchronous lifting or pressing is realized to realize compression and fixing or loosening of the PCB, the moving path is short, and the efficiency is high. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 It is a structural schematic view of the conveying mechanism of the circuit board.

[0016] Fig. 2 It is partial structure schematic view of fixed assembly of the utility model.

[0017] The reference signs include: 1, rack; 21, third drive assembly; 22, roller; 3, stop assembly; 31, stop arm; 32, second drive assembly; 4, fixed assembly; 41, first drive assembly; 42, connecting shaft; 421, main body part; 422, mounting part; 43, fixed arm; 431, straight arm; 432, compression arm; 5, sensing assembly; 61, mounting table; 62, protective plate. DETAILED DESCRIPTION

[0018] In order to further illustrate the technical means and effects adopted by the utility model to achieve the predetermined utility model purposes, the specific embodiments, structures, features and effects according to the utility model are described in detail as follows in combination with the drawings and preferred embodiments.

[0019] Please refer to Figs. 1-2 The utility model discloses a conveying mechanism of circuit board spare, it is characterized by including conveying unit, conveying unit includes rack 1, is located on the transport assembly, stop assembly 3, fixed assembly 4 and sensing assembly 5 of rack 1;External material is conveyed via transport assembly, when sensing assembly 5 detects external material, stop assembly 3 intercepts material, and fixed assembly 4 compresses material;Fixed assembly 4 includes first drive assembly 41, connecting shaft 42 and multiple fixed arms 43, connecting shaft 42 is rotatably installed on rack 1, multiple fixed arms 43 are installed on connecting shaft 42, when first drive assembly 41 drives connecting shaft 42 to rotate forward or reverse, multiple fixed arms 43 are driven to rotate synchronously, realize the compression or loosening of external material.

[0020] When actually using, transport assembly is shorter roller 22, the most outer end of stop assembly 3 is located, and inwards sequentially for sensing assembly 5 and fixed assembly 4.Fixed assembly 4, sensing assembly 5 and fixed assembly 4 are fixed on rack 1 by screw and nut, and the interval of fixed assembly 4, sensing assembly 5 and fixed assembly 4 on rack 1 is adjusted, to adapt to the size of different PCB.The number of fixed arm 43 is four, and is fixed on connecting shaft 42 by screw and nut, and the number and interval of multiple fixed arms 43 can be adjusted.Connecting shaft 42 is rotatably fixed on rack 1 by screw and nut, and first drive assembly 41 makes connecting shaft 42 rotate by connecting rod.

[0021] Specifically, the plurality of fixed arms 43 are located above the external material, the fixed arm 43 has a straight arm 431 and a pressing arm 432, one end of the straight arm 431 is connected with the connecting shaft 42, and the other end protrudes towards the external material; the pressing arm 432 is bent from the straight arm 431, and the pressing arm 432 has an outward convex curved surface for abutting against the non-functional edge of the pressed external material.

[0022] In actual use, the fixed arm 43 is located above the rack 1 and the PCB, one end of the fixed arm 43 is a straight arm 431 parallel to the PCB, the other end is a pressing arm 432 perpendicular to the PCB, and the two ends are connected by an arc-shaped plate. The straight arm 431 is provided with a through hole, and the fixed arm 43 is sleeved on the connecting shaft 42 through the through hole, and is provided with a screw hole for fastening and connecting with the connecting shaft 42 by a screw.

[0023] Specifically, the connecting shaft 42 includes a main body part 421 and a mounting part 422, the main body part 421 is non-circular in cross section, and the mounting part 422 is circular in cross section; a plurality of fixed arms 43 are sleeved on the outside of the main body part 421, and the connecting shaft 42 is rotatably mounted on the rack 1 through the mounting part 422.

[0024] In actual use, the connecting shaft 42 is divided into two parts, the main body part 421 is located between the two mounting parts 422, the main body part 421 is used for mounting the fixed arm 43, and the cross section is hexagonal, which is convenient for clamping firmly, the mounting part 422 is mounted on the rack 1, and the cross section is circular, which is convenient for rotating the connecting shaft 42.

[0025] Specifically, the number of the stop components 3 is two, which are located at both ends of the external material; the stop component 3 includes a stop arm 31 and a second driving component 32 for driving the stop arm 31 to move.

[0026] In actual use, the two stop components 3 are located at both ends of the PCB, and are used for stopping the movement and transportation of the PCB. The second driving component 32 is a pneumatic driving mechanism, which drives the stop arm 31 to reciprocate in the horizontal direction.

[0027] Specifically, the stop arm 31 has a mounting plate connected with the second driving component 32, and a protruding block bent and extending from the mounting plate and protruding towards the external material.

[0028] In actual use, one end of the mounting plate is connected with the second driving component 32, the other end is bent towards the PCB, and the bent end is downward, the mounting plate is provided with a protruding block at the end, and the second driving component 32 drives the protruding block to reciprocate in a direction perpendicular to the movement direction of the PCB, so as to stop or continue the transportation of the PCB.

[0029] Specifically, the conveying unit is provided with a protection assembly having a mounting table 61 and a protection plate 62; one side of the mounting table 61 is mounted on the rack 1, and the other side is provided with the protection plate 62; the protection plate 62 has a flat plate connected with the mounting table 61, and a shielding plate bent from the flat plate; the shielding plate is provided with an arc-shaped through hole, and the roller 22 is located below the flat plate, and one end of the roller 22 extends out of the arc-shaped through hole for supporting external materials.

[0030] In actual use, the protection assembly is used to guide the transportation of the PCB on the roller 22, and to protect the PCB from being damaged during the conveying process. The protection assembly mainly includes the mounting table 61 and the protection plate 62, and the protection plate 62 is mounted on the rack 1 through the mounting table 61. The protection plate 62 is provided with a semicircular hole, and when the protection plate 62 covers above the roller 22, the roller 22 extends out of the hole to realize the conveying of the PCB. The design of the protection plate 62 can avoid the PCB being stuck between two adjacent rollers 22.

[0031] Specifically, the number of the protection assembly is multiple, and a groove for accommodating the stop arm 31 is arranged between two protection assemblies on both sides of the stop arm 31, and when the stop arm 31 extends out of the groove, the external materials stop conveying.

[0032] In actual use, the number of the protection assembly is four groups, which can be spliced according to actual needs. The protection assemblies on both sides of the stop assembly 3 can leave a groove gap for accommodating the stop arm 31. The second driving assembly 32 drives the stop arm 31 to extend out or return to the groove.

[0033] Specifically, the conveying assembly includes a third driving assembly 21 and a roller 22, and the third driving assembly 21 drives the roller 22 to rotate, and the external materials placed on the roller 22 move forward with the rotation of the roller 22.

[0034] In actual use, the conveying assembly is composed of the roller 22, and the PCB is placed on the roller 22. When the roller 22 rotates, the PCB moves forward with the rotation of the roller 22 by relying on the friction force.

[0035] Specifically, the roller 22 includes a driving roller 22 and a plurality of driven rollers 22, and the driving roller 22 and the driven roller 22 are connected by a chain. The third driving assembly 21 drives the driving roller 22 to rotate, and the driving roller 22 drives the driven roller 22 to rotate synchronously.

[0036] In actual use, the roller 22 is divided into a driving roller 22 and a driven roller 22. The driving roller 22 is directly connected with the third driving assembly 21, and the driving roller 22 and the driven roller 22, and the driven roller 22 are connected by chain transmission. The third driving assembly 21 is a pneumatic driving mechanism.

[0037] In actual use, there are two conveying units, and the transport components of the two conveying units are used to support the two ends of the external materials.

[0038] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A conveying mechanism for circuit boards, characterized in that: The system includes a conveying unit, which includes a frame (1), a transport component, a stop component (3), a fixing component (4), and a sensing component (5) mounted on the frame (1). External materials are transported via the transport component. When the sensing component (5) detects external materials, the stop component (3) intercepts the materials, and the fixing component (4) presses the materials. The fixing component (4) includes a first drive component (41), a connecting shaft (42), and multiple fixing arms (43). The connecting shaft (42) is rotatably mounted on the frame (1), and the multiple fixing arms (43) are mounted on the connecting shaft (42). When the first drive component (41) drives the connecting shaft (42) to rotate forward or backward, it drives the multiple fixing arms (43) to rotate synchronously, thereby pressing or releasing the external materials.

2. The circuit board conveying mechanism according to claim 1, characterized in that: The plurality of fixed arms (43) are located above the external material. Each fixed arm (43) has a straight arm (431) and a pressing arm (432). One end of the straight arm (431) is connected to the connecting shaft (42), and the other end protrudes toward the external material. The pressing arm (432) is formed by bending the straight arm (431). The pressing arm (432) has an outwardly convex arc surface for abutting and pressing the non-functional edge portion of the external material.

3. The circuit board conveying mechanism according to claim 1, characterized in that: The connecting shaft (42) includes a main body (421) and a mounting part (422). The main body (421) has a non-circular cross section, and the mounting part (422) has a circular cross section. Multiple fixed arms (43) are sleeved on the outside of the main body (421), and the connecting shaft (42) is rotatably mounted on the frame (1) via the mounting part (422).

4. The circuit board conveying mechanism according to claim 1, characterized in that: The number of the stop components (3) is two, located at both ends of the external material; the stop components (3) include a stop arm (31) and a second drive component (32) for driving the stop arm (31) to move.

5. The circuit board conveying mechanism according to claim 4, characterized in that: The stop arm (31) has a mounting plate connected to the second drive assembly (32) and a protrusion that bends and extends from the mounting plate toward the external material.

6. The circuit board conveying mechanism according to claim 1, characterized in that: The conveying unit is provided with a protective component, which has a mounting platform (61) and a protective plate (62). The mounting platform (61) is mounted on the frame (1) on one side and the protective plate (62) is mounted on the other side. The protective plate (62) has a flat plate connected to the mounting platform (61) and a baffle plate formed by bending the flat plate. The baffle plate has an arc-shaped through hole, and the roller (22) is located below the flat plate. One end of the roller (22) extends through the arc-shaped through hole to support external materials.

7. The circuit board conveying mechanism according to claim 6, characterized in that: The number of protective components is multiple. A groove for accommodating the stop arm (31) is provided between two protective components located on both sides of the stop arm (31). When the stop arm (31) extends out of the groove, the external material stops being transported.

8. The circuit board conveying mechanism according to claim 1, characterized in that: The transport assembly includes a third drive assembly (21) and a roller (22). The third drive assembly (21) drives the roller (22) to rotate. External materials placed on the roller (22) move forward as the roller (22) rotates.

9. The circuit board conveying mechanism according to claim 8, characterized in that: The roller (22) includes an active roller (22) and a plurality of driven rollers (22). The active roller (22) and the driven rollers (22) are connected in pairs via chains. The third drive assembly (21) drives the active roller (22) to rotate, and the active roller (22) drives the driven rollers (22) to rotate synchronously.

10. The circuit board conveying mechanism according to claim 1, characterized in that: The number of conveying units is two, and the transport components of the two conveying units are respectively used to support the two ends of the external material; or one conveying unit cooperates with an external guide rail, with one end of the external material supported by the transport component of the conveying unit and the other end supported by the guide rail.

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