Wave soldering equipment, PCB (Printed Circuit Board) transportation system and hexagonal shaft quick-release connecting structure

Abstract

The utility model discloses a wave soldering equipment, PCB transportation system and hexagonal shaft quick-release connection structure, the hexagonal shaft quick-release connection structure includes drive mechanism, coupling and hexagonal shaft, the first side of coupling is with drive mechanism's output shaft key joint, the second side of coupling is equipped with the jack that matches the shape of hexagonal shaft, and the hexagonal shaft is inserted into the jack. The hexagonal shaft is inserted into the inserting hole to form circumferential limiting, and a detachable connecting piece is connected between the inserting part of the hexagonal shaft and the coupler to form axial limiting. The device is convenient to disassemble and assemble, the maintenance time of wave soldering equipment is shortened, and the PCB production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of wave soldering, and more specifically, to a hexagonal shaft quick-release connection structure. In addition, the utility model also relates to a wave soldering device and a PCB transportation system including the hexagonal shaft quick-release connection structure. Background Art

[0002] Printed circuit boards (PCBs) and components are welded using wave soldering equipment. Wave soldering equipment is an automated assembly line production model. The PCB is transported on the assembly line by rotating the hexagonal axis. The welding is completed through four steps: flux spraying, preheating, wave soldering, and cooling.

[0003] In the prior art, the transport power of PCB comes from the driving device 01, please refer to Figure 1 The driving device 01 is installed in the transportation system through the fixing plate 02, the hexagonal shaft 03 is installed on the fixing plate 02 through the bearing seat 06 and is spaced apart from the driving device 01, and the sprocket 04 is arranged on the machine shaft of the driving device 01 and the hexagonal shaft 03, and the two sprockets 04 are connected by the chain 05 transmission to transmit the driving force of the driving device 01 to the hexagonal shaft 03 through the sprocket 04 and the chain 05, so as to realize the rotation of the hexagonal shaft 03 and drive the PCB transportation. With the uninterrupted production of the wave soldering equipment, the load of the wave soldering equipment is getting bigger and bigger, and regular maintenance is required to continuously ensure the production quality. When the wave soldering equipment is maintained, the hexagonal shaft 03 needs to be removed. However, the above structure is complicated, and it is often necessary to remove the sprocket chain transmission structure, the bearing seat 06 and the fixing plate 02 between the machine shaft of the driving device 01 and the hexagonal shaft 03 before removing the hexagonal shaft 03. The steps are complicated, resulting in poor convenience in disassembly and assembly of the hexagonal shaft 03, which makes the maintenance time of the wave soldering equipment longer, affecting the PCB production efficiency.

[0004] In summary, how to solve the problem of poor assembly and disassembly convenience of the existing hexagonal shaft connection structure is an urgent problem to be solved by those skilled in the art. Utility Model Content

[0005] In view of this, the purpose of the utility model is to provide a hexagonal shaft quick-release connection structure, which is convenient for disassembly and assembly, shortens the maintenance time of wave soldering equipment, and improves PCB production efficiency.

[0006] Another object of the utility model is to provide a wave soldering device and a PCB transportation system including the above-mentioned hexagonal shaft quick-release connection structure.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A hexagonal shaft quick-release connection structure comprises a driving mechanism, a coupling and a hexagonal shaft, wherein a first side of the coupling is key-connected to an output shaft of the driving mechanism, a second side of the coupling is provided with a socket adapted to the shape of the hexagonal shaft, the hexagonal shaft is inserted into the socket to form a circumferential limit, and a detachable connecting piece is connected between the insertion portion of the hexagonal shaft and the coupling to form an axial limit.

[0009] Preferably, the connecting member includes a pin and an open fixing ring, the pin passes through the side wall of the coupling and is connected to the hexagonal shaft, the fixing ring can be opened and slidably sleeved on the side wall of the coupling, and an annular groove is provided on the side wall of the coupling corresponding to the position of the pin, and the fixing ring can be retracted and inserted into the annular groove to fix the pin.

[0010] Preferably, the connecting member is a bolt, and the bolt passes through the side wall of the coupling and is connected to the hexagonal shaft.

[0011] Preferably, the coupling is a universal coupling.

[0012] Preferably, the driving mechanism comprises a motor and a reducer, the reducer is connected to the motor, and the reducer is connected to the first side key of the coupling.

[0013] A PCB transportation system comprises the hexagonal shaft quick-release connection structure described in any one of the above items.

[0014] A wave soldering device comprises the hexagonal shaft quick-release connection structure described in any one of the above items.

[0015] Compared with the above-mentioned background technology, the hexagonal shaft quick-release connection structure provided by the utility model consists of a driving mechanism, a coupling and a hexagonal shaft, wherein one side of the coupling is key-connected with the output shaft of the driving mechanism, so that a circumferential limit is formed between the two so as to rotate together and transmit torque, and a socket is provided on the other side of the coupling, and the hexagonal shaft is inserted into the socket, so that a circumferential limit is formed between the two so as to rotate together and transmit torque, and in order to prevent the hexagonal shaft from escaping from the coupling, a detachable connecting part is connected between the hexagonal shaft and the coupling, so that an axial limit is formed between the two, thereby utilizing the coupling to transmit the driving force of the driving mechanism to the hexagonal shaft, driving the hexagonal shaft to rotate to realize PCB transportation.

[0016] When the above structure needs maintenance after running for a period of time, the connecting piece between the hexagonal shaft and the coupling is first removed. Then, when removing the driving mechanism, the driving mechanism and the hexagonal shaft can be separated. Finally, the hexagonal shaft can be pulled out to achieve rapid removal of the hexagonal shaft. Similarly, in contrast to the above removal process, the hexagonal shaft can be quickly installed, thereby improving the convenience of disassembly and assembly, thereby shortening the maintenance time of the wave soldering equipment and improving the PCB production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] 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 in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0018] Figure 1 It is a structural schematic diagram of a hexagonal axis connection structure in the prior art;

[0019] Figure 2 A structural schematic diagram of the hexagonal shaft quick-release connection structure provided by the utility model;

[0020] Figure 3 The utility model is a schematic diagram of the structure of the coupling.

[0021] Figure 1 middle:

[0022] 01 is the driving device, 02 is the fixing plate, 03 is the hexagonal shaft, 04 is the sprocket, 05 is the chain, and 06 is the bearing seat.

[0023] Figure 2 and Figure 3 middle:

[0024] 1 is a driving mechanism, 2 is a coupling, 3 is a hexagonal shaft, 4 is a through hole, 5 is an annular slot, and 6 is a socket;

[0025] 11 is a motor and 12 is a speed reducer. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0027] The core of the utility model is to provide a hexagonal shaft quick-release connection structure, which is convenient for assembly and disassembly, shortens the maintenance time of wave soldering equipment, and improves PCB production efficiency.

[0028] Another core of the utility model is to provide a wave soldering device and a PCB transportation system including the above-mentioned hexagonal shaft quick-release connection structure.

[0029] Please refer to Figure 2 The present application provides a hexagonal shaft quick-release connection structure, including a driving mechanism 1, a coupling 2 and a hexagonal shaft 3. The first side of the coupling 2 is keyed to the output shaft of the driving mechanism 1, and the second side of the coupling 2 is provided with a socket 6 that is adapted to the shape of the hexagonal shaft 3. The hexagonal shaft 3 is inserted into the socket 6 to form a circumferential limit, and a detachable connecting piece is connected between the insertion portion of the hexagonal shaft 3 and the coupling 2 to form an axial limit.

[0030] It should be noted that the coupling 2 is used to connect the output shaft of the driving mechanism 1 and the hexagonal shaft 3, so that the two can rotate and transmit torque, and play a role in buffering, reducing vibration and improving the dynamic performance of the shaft system. A key strip is arranged on the output shaft of the driving mechanism 1, and a shaft socket (not shown in the figure) is arranged along the axial direction of the first side of the coupling 2, and a keyway matched with the key strip is arranged on the inner wall of the shaft socket. The output shaft of the driving mechanism 1 is inserted into the shaft socket, and the key strip is embedded in the keyway to realize the key connection between the coupling 2 and the output shaft of the driving mechanism 1, so that a circumferential limit is formed between the two so that they can rotate together and transmit torque; a socket 6 is arranged along the axial direction of the second side of the coupling 2, and the cross-section of the socket 6 is hexagonal, and the socket 6 is matched with the shape of the hexagonal shaft 3. The hexagonal shaft 3 is inserted into the socket 6 on the second side of the coupling 2 and the two are in close contact, so that a circumferential limit is formed between the two so that they can rotate together and transmit torque. In order to prevent the hexagonal shaft 3 from detaching from the coupling 2, a through hole 4 is arranged along the radial direction of the second side of the coupling 2, and the connecting member is connected to the hexagonal shaft 3 through the through hole 4, so that an axial limit is formed between the hexagonal shaft 3 and the coupling 2, limiting the axial movement of the hexagonal shaft 3. In this way, the driving mechanism 1 is started, and the driving force of the driving mechanism 1 can be transmitted to the hexagonal shaft 3 through the coupling 2, driving the hexagonal shaft 3 to rotate to realize the PCB transportation.

[0031] When the above structure needs maintenance after running for a period of time, the connecting piece between the hexagonal shaft 3 and the coupling 2 is first removed, and then when the driving mechanism 1 is removed, the driving mechanism 1 and the hexagonal shaft 3 can be separated, and finally the hexagonal shaft 3 can be pulled out to achieve rapid removal of the hexagonal shaft 3. Similarly, in contrast to the above removal process, the hexagonal shaft 3 can be quickly installed, thereby improving the convenience of disassembly and assembly, thereby shortening the maintenance time of the wave soldering equipment and improving the PCB production efficiency.

[0032] Taking into account the specific structure of the connecting member, on the basis of the above embodiment, the connecting member is a bolt, and the bolt passes through the side wall of the coupling 2 and is connected to the hexagonal shaft 3.

[0033] Specifically, a bolt hole is provided on the insertion portion of the hexagonal shaft 3, and either of the bolt hole and the through hole 4 on the second side of the coupling 2 is a threaded hole, so that the bolt passes through the outer wall of the coupling 2 and is connected to the hexagonal shaft 3. In this way, the bolt not only realizes a high-strength connection between the coupling 2 and the hexagonal shaft 3, but also when disassembling and assembling the hexagonal shaft 3, only the bolt needs to be screwed to disassemble and assemble the connecting part, thereby improving the convenience of disassembling and assembling the connecting part, and thereby improving the convenience of disassembling and assembling the hexagonal shaft 3.

[0034] In addition, the connecting piece can also be composed of a pin and an open fixed ring. The pin passes through the side wall of the coupling 2 and is connected to the hexagonal shaft 3. The fixed ring can be opened and slidably sleeved on the side wall of the coupling 2. An annular groove 5 is provided on the side wall of the coupling 2 at the position corresponding to the pin. The fixed ring can be retracted and inserted into the annular groove 5 to fix the pin.

[0035] For details, please refer to Figure 3 The through hole 4 on the second side of the coupling 2 is consistent with the aperture of the pin shaft. Correspondingly, the insertion portion of the hexagonal shaft 3 is provided with a pin hole for inserting the pin shaft. The outer wall of the second side of the coupling 2 is circumferentially provided with an annular groove 5, and the notch of the annular groove 5 coincides with the orifice of the through hole 4. The fixing ring is an open structure and can be sleeved on the outer wall of the coupling 2, and it can be opened under the action of external force. In this way, after the pin shaft passes through the through hole 4 on the outer wall of the coupling 2 and is inserted into the pin hole on the hexagonal shaft 3, in order to prevent the pin shaft from falling off, an external force is applied to the fixing ring to open it, and the fixing ring is slid along the axial direction of the coupling 2 to the position of the annular groove 5, and then the external force is released, and the fixing ring shrinks and recovers to be clamped into the annular groove 5 to prevent the pin shaft from falling out, thereby realizing the fixed connection between the hexagonal shaft 3 and the coupling 2. The connecting piece with the above structure can easily disassemble the fixing ring and the pin when disassembling the hexagonal shaft 3, further improving the convenience of disassembling the connecting piece. Compared with the threaded hole, the pin hole on the hexagonal shaft 3 and the coupling 2 is simple to process.

[0036] On the basis of the above embodiment, the coupling 2 is a universal coupling 2, which can not only transmit power and torque, but also transform the transmission angle, and effectively absorb the concentricity error between the hexagonal shaft 3 and the output shaft of the driving mechanism 1. In addition, the specific structure of the universal coupling 2 can refer to the prior art, which is not the focus of protection of this application and will not be repeated here.

[0037] On the basis of the above embodiment, the driving mechanism 1 is composed of a motor 11 and a reducer 12 with a compact structure and high transmission efficiency. The reducer 12 is connected to the motor 11, and the reducer 12 is connected to the first side key of the coupling 2. The motor 11 serves as a power source to drive the reducer 12 to rotate, and the output shaft of the reducer 12 is connected to the first side key of the coupling 2. The high-speed and low-torque output of the motor 11 can be adjusted to a suitable low-speed and high-torque output to meet different work requirements, thereby improving production efficiency.

[0038] In addition to the above-mentioned hexagonal shaft quick-release connection structure, the utility model also provides a PCB transportation system and wave soldering equipment including the hexagonal shaft quick-release connection structure disclosed in the above-mentioned embodiment. For the structures of other parts of the PCB transportation system and the wave soldering equipment, please refer to the prior art and will not be repeated in this article.

[0039] It should be noted that, in this specification, relational terms such as first and second are merely used to distinguish one entity from other entities, but do not necessarily require or imply any actual relationship or order between these entities.

[0040] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0041] The above is a detailed introduction to a wave soldering device, a PCB transport system and a hexagonal shaft quick-release connection structure provided by the utility model. This article uses specific examples to illustrate the principle and implementation method of the utility model. The description of the above embodiment is only used to help understand the method and core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A hexagonal shaft quick-release connection structure, characterized in that: The invention comprises a driving mechanism (1), a coupling (2) and a hexagonal shaft (3); the first side of the coupling (2) is key-connected to the output shaft of the driving mechanism (1); the second side of the coupling (2) is provided with a socket (6) whose shape matches that of the hexagonal shaft (3); the hexagonal shaft (3) is inserted into the socket (6) to form a circumferential limit, and a detachable connecting piece is connected between the insertion portion of the hexagonal shaft (3) and the coupling (2) to form an axial limit.

2. The hexagonal shaft quick-release connection structure according to claim 1, characterized in that: The connecting member comprises a pin and an open fixing ring, the pin passes through the side wall of the coupling (2) and is connected to the hexagonal shaft (3), the fixing ring can be opened and slidably sleeved on the side wall of the coupling (2), an annular groove (5) is provided on the side wall of the coupling (2) at a position corresponding to the pin, and the fixing ring can be retracted and inserted into the annular groove (5) to fix the pin.

3. The hexagonal shaft quick-release connection structure according to claim 1, characterized in that: The connecting piece is a bolt, and the bolt passes through the side wall of the coupling (2) and is connected to the hexagonal shaft (3).

4. The hexagonal shaft quick-release connection structure according to claim 2 or 3, characterized in that: The coupling (2) is a universal coupling (2).

5. The hexagonal shaft quick-release connection structure according to claim 4, characterized in that: The driving mechanism (1) comprises a motor (11) and a reducer (12); the reducer (12) is connected to the motor (11); and the reducer (12) is connected to a first side key of the coupling (2).

6. A PCB transportation system, characterized in that: The PCB transportation system includes the hexagonal shaft quick-release connection structure described in any one of claims 1 to 5 above.

7. A wave soldering equipment, characterized in that: The wave soldering equipment comprises the hexagonal shaft quick-release connection structure as described in any one of claims 1 to 5 above.

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