Annular assembly line of full-automatic screw machine

Abstract

The utility model relates to an annular assembly line of a full-automatic screw machine, which comprises a driving motor connected to one end face of a mounting plate, an output shaft of the driving motor penetrates through an opening formed in the mounting plate to be connected with a driving gear, the driving gear is in meshing transmission with a chain connected to the other end face of the mounting plate, and a plurality of product carriers are connected to the chain. A product carrier is arranged on the mounting plate, a product is placed above the product carrier, an air cylinder positioning mechanism is further connected to one end face of the mounting plate, and the upper end of a fine positioning block in the air cylinder positioning mechanism is matched with a notch inwards formed in one side of a carrier transverse plate in the product carrier so that the product carrier can be accurately positioned. The fine positioning block can accurately and finely adjust the product carrier, so that the accuracy of all stations of the full-automatic screw machine is 0.05 mm, and the yield of product production can be effectively improved. And meanwhile, the working stability and safety of the full-automatic screw machine can be improved.

Description

Technical Field

[0001] The utility model relates to an annular assembly line of a full-automatic screwdriver, belonging to the technical field of mechanical automation. Background Technique

[0002] An automatic screwdriver is an automatic device that uses an automated mechanism to replace manual operations for taking, placing, and tightening screws, and can also be used for the automatic assembly of columnar small parts. It is mostly applied to the automatic assembly of products such as automotive parts production, computers, display screens, motors, lamps, circuit boards, etc. By means of automated operation methods, it comprehensively improves the production efficiency, quality control, and management level of various products, providing customers with high-quality products, cost reduction, and higher profits.

[0003] Currently, the annular assembly line in the existing automatic screwdriver is a synchronous pulley structure, which is a transmission mechanism that uses the self-locking principle of a synchronizer to synchronize the rotational speeds of two shafts. Moreover, currently, the accuracy of each station in most full-automatic screwdrivers is only about 1 mm, but even an accuracy of about 1 mm often results in the phenomenon of welding deviation at the welding station of the full-automatic screwdriver. After the welding deviation occurs, it will cause the phenomenon of the screw being driven obliquely at the screw driving station. However, if the screw is driven obliquely, it will directly lead to the scrapping of the product, resulting in excessive consumption of production costs. Therefore, there is an urgent need for an annular assembly line that can improve the working accuracy of the workstations in the full-automatic screwdriver. Content of the Utility Model

[0004] This part of the content of the present application is used to briefly introduce the concepts, which will be described in detail in the subsequent specific implementation part. This part of the content of the present application is not intended to identify the key features or essential features of the claimed technical solution, nor is it intended to limit the scope of the claimed technical solution.

[0005] Aiming at the problems and deficiencies existing in the prior art, the purpose of the utility model is to provide an annular assembly line of a full-automatic screwdriver. By connecting a cylinder positioning mechanism to the mounting plate, the precise positioning of the product can be achieved, the accuracy of other workstations of the full-automatic screwdriver can be improved, and thus the yield rate of the products produced by the full-automatic screwdriver can be increased. To solve the problems raised in the above background technique.

[0006] To achieve the above object, the present utility model provides the following technical solutions: It includes a mounting plate, one end face of the mounting plate is connected with a driving motor, the output shaft of the driving motor passes through an opening provided on the mounting plate and is connected with a driving gear, and then the driving gear is meshed with a chain connected to the other end face of the mounting plate for transmission. A plurality of product carriers are connected to the chain, and products are placed above the product carriers; One end face of the mounting plate is also connected with a cylinder positioning mechanism, and the upper end of the fine positioning block in the cylinder positioning mechanism is matched with a notch inwardly opened on one side of the carrier cross plate in the product carrier to achieve precise positioning of the product carrier.

[0007] Preferably, the cylinder positioning mechanism includes a positioning cross plate and a positioning cylinder connected to one end face of the mounting plate. A rotating shaft is connected above the positioning cross plate by supporting a supporting vertical plate, and a transmission block and the fine positioning block are sleeved outside the rotating shaft, and the output shaft of the positioning cylinder is connected to the transmission block.

[0008] Preferably, the product carrier includes a carrier back plate, the lower end of the carrier back plate is connected to the chain through an adapter plate, and the carrier cross plate is connected to the side of the carrier back plate.

[0009] Preferably, a chain guide rail is provided on one end face of the mounting plate, and the chain guide rail is slidably clamped with a carrier transmission wheel connected to the upper end of the carrier back plate. A chain guide rail is provided at the edge of one side face of the mounting plate, a carrier transmission wheel is connected to the upper end of the carrier back plate in the product carrier, and then the carrier transmission wheel is slidably clamped with the chain guide rail. During use, it can prevent the product carrier from falling off the chain and improve the stability of the product carrier moving driven by the chain.

[0010] Preferably, a turning block is also connected to one end face of the mounting plate, and a load-bearing wheel is connected to the upper end of the turning block. A load-bearing wheel is connected through a turning block to one end face of the mounting plate, and the load-bearing wheel is located below the product. Usually, the function of the load-bearing wheel is to bear the weight of an object. In the present utility model, the load-bearing wheel can share the weight of the carrier transmission wheel when bearing the product carrier, thereby preventing the deformation of the chain guide rail caused by long-term stress.

[0011] Preferably, a position sensor is connected above the positioning cross plate by supporting a right-angle plate. A position sensor is a sensor that can sense the position of a measured object and convert it into an available output signal, used to detect the position of the measured object and then make corresponding actions. Here, the position sensor is connected to the positioning cross plate in the cylinder positioning mechanism to sense whether the product carrier comes to the corresponding position of the fine positioning block, which can accelerate the precise positioning of the product carrier and control the positioning accuracy of the product carrier within 1 mm.

[0012] Preferably, one end face of the mounting plate is connected to a fixing plate, and the fixing plate is connected to the workbench. By connecting the rear side of the mounting plate to the lower part of the workbench through the fixing plate, a firm and stable connection between the assembly line of the present utility model and the workbench can be achieved, which helps to further improve the stability and safety during overall use.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] The present utility model has the characteristics of simple structure and convenient operation, effectively improving the stability and safety of the fully automatic screwdriver during operation. The present utility model includes a cylinder positioning mechanism connected to one end face of the mounting plate. When the positioning cylinder in the cylinder positioning mechanism starts to work, the positioning cylinder drives the transmission shaft to rotate through the transmission block, and the rotation of the transmission shaft drives the movement of the fine positioning block. If the fine positioning block can be engaged with the notch inwardly opened on one side of the carrier cross plate in the product carrier, the precise positioning of the product carrier can be completed. In addition, the precise positioning of the product carrier is accelerated through the position sensor, and the load-bearing wheels can share the weight of the carrier driving wheel when carrying the product carrier. And the carrier driving wheel is slidably clamped with the chain guide rail to improve the stability of the product carrier moving under the drive of the chain. The fine positioning block in the present utility model can make precise fine adjustment of the product carrier, ensuring that the accuracy of all stations of the fully automatic screwdriver is controlled within 0.05 mm, thereby improving the qualified rate of product production. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings forming a part of this application are used to provide a further understanding of this application, making other features, objects, and advantages of this application more obvious. The schematic embodiments and descriptions of the drawings of this application are used to explain this application and do not constitute an improper limitation of this application.

[0016] In the drawings:

[0017] Figure 1 : is a schematic connection structure diagram of the overall device in the present utility model;

[0018] Figure 2 : is a schematic structure diagram of the cylinder positioning mechanism in the present utility model;

[0019] Figure 3 : is a schematic structure diagram of the product carrier in the present utility model.

[0020] The labels in the figure are: 1. mounting plate; 2. fixing block; 3. chain; 4. chain guide; 5. product carrier; 501. carrier back plate; 502. carrier driving wheel; 503. carrier cross plate; 6. cylinder positioning mechanism; 601. positioning cross plate; 602. supporting vertical plate; 603. rotating shaft; 604. driving block; 605. fine positioning block; 606. positioning cylinder; 7. driving gear; 8. load-bearing wheel; 9. turning block; 10. position sensor; 11. driving motor. Specific embodiments

[0021] Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although some embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. On the contrary, these embodiments are provided to more thoroughly and completely understand the present disclosure. It should be understood that the drawings and embodiments of the present disclosure are only for exemplary purposes and are not used to limit the protection scope of the present disclosure.

[0022] In addition, it should be noted that for ease of description, only parts related to the relevant utility model are shown in the drawings. Without conflict, the embodiments in the present disclosure and the features in the embodiments can be combined with each other.

[0023] The present disclosure will be described in detail below with reference to the drawings and in conjunction with the embodiments.

[0024] A circular assembly line of a full-automatic screwdriver provided in this embodiment is as Figures 1 to 3 shown: One end face of the mounting plate 1 is connected to the driving motor 11. The output shaft of the driving motor 11 passes through the opening provided on the mounting plate 1 and is connected to the driving gear 7. Then, the driving gear 7 is meshed with the chain 3 connected to the other end face of the mounting plate 1 for transmission. A plurality of product carriers 5 are connected to the chain 3, and the products are placed above the product carriers 5. One end face of the mounting plate 1 is also connected with a cylinder positioning mechanism 6. The upper end of the fine positioning block 605 in the cylinder positioning mechanism 6 is matched with the notch inwardly opened on one side of the carrier cross plate 503 in the product carrier 5 to realize the precise positioning of the product carrier 5. The cylinder positioning mechanism 6 includes a positioning cross plate 601 and a positioning cylinder 606 connected to one end face of the mounting plate 1. The rotating shaft 603 is connected above the positioning cross plate 601 by supporting the supporting vertical plate 602, and the driving block 604 and the fine positioning block 605 are sleeved outside the rotating shaft 603, and the output shaft of the positioning cylinder 606 is connected to the driving block 604. The product carrier 5 includes a carrier back plate 501. The lower end of the carrier back plate 501 is connected to the chain 3 through an adapter plate, and the carrier cross plate 503 is connected to the side of the carrier back plate 501.

[0025] This embodiment further includes that a chain guide rail 4 is provided on one end face of the mounting plate 1, and the carrier driving wheel 502 which connects the chain guide rail 4 to the upper end of the carrier back plate 501 is slidably clamped. One end face of the mounting plate 1 is also connected with a turning block 9, and a load-bearing wheel 8 is connected to the upper end of the turning block 9. Slidably clamping the carrier driving wheel 502 in the product carrier 5 with the chain guide rail 4 can prevent the product carrier 5 from easily falling off the chain 3, and can improve the stability of the product carrier 5 moving driven by the chain 3. Connecting the load-bearing wheel 8 through the turning block 9 on one end face of the mounting plate 1, the weight of the product carrier 5 borne by the carrier driving wheel 502 can be shared by the load-bearing wheel 8, thereby preventing the deformation of the chain guide rail 4 caused by long-term stress.

[0026] This embodiment further includes that a position sensor 10 is connected above the positioning cross plate 601 through a supporting right-angle plate, and one end face of the mounting plate 1 is connected with a fixing plate 2, and the workbench is connected through the fixing plate 2. Connecting the position sensor 10 on the positioning cross plate 601 in the cylinder positioning mechanism 6 is used to sense whether the product carrier 5 arrives at the corresponding position of the fine positioning block 605, which can accelerate the precise positioning of the product carrier 5, and the positioning accuracy of the product carrier 5 can be controlled within 0.05 mm. Connecting the mounting plate 1 to the lower part of the workbench through the fixing plate 2 at the rear side can realize the stable connection between the assembly line of the present utility model and the workbench, which helps to further improve the stability and safety during overall use.

[0027] The usage method of the present utility model

[0028] The mounting plate 1 is of an overall annular structure. Before use, it is necessary to first determine the distance between two adjacent product carriers 5, set the number of pulses driven by the drive motor 11 according to the determined distance, and add a cylinder positioning mechanism 6 at the position where precise positioning is required. During use, start the drive motor 11 to make the drive gear 7 rotate, and the drive gear 7 meshes with the chain 3 and rotates with it. Thus, the product carriers 5 are driven to move in sequence by the chain 3, and when driving, the product to be screwed can be placed above the product carrier 5. When the position sensor 10 connected to the positioning cross plate 601 senses that the product carrier 5 is about to move to the position of the fine positioning block 605, at this time, the positioning cylinder 606 in the cylinder positioning mechanism 6 starts to work. The positioning cylinder 606 drives the transmission shaft 603 to rotate through the transmission block 604, and the rotation of the transmission shaft 603 drives the movement of the fine positioning block 605. If the fine positioning block 605 can be engaged with the notch inwardly opened on one side of the carrier cross plate 503 in the product carrier 5, the precise positioning of the product carrier 5 can be completed.

[0029] The gap between the positioned vehicle cross plate 503 and the fine positioning block 605 is 0.05 mm, which can ensure that the accuracy of other stations of the screwdriver of the present utility model is 0.05 mm. An origin positioning function is also added inside the circular assembly line of the present utility model to prevent position errors of the assembly line body due to long-term operation. After prior origin positioning, the chain 3 drives the product carrier 5 to travel 152.6 mm each time, and the pulse number of the drive motor is 10,000. The cylinder positioning mechanism 6 works by driving the fine positioning block 605 through the positioning cylinder 606. Since the gap between the links of the chain 3 is relatively large, the fine positioning block 605 can make fine adjustments to the product carrier 5, thereby ensuring that the accuracy of all these stations is controlled at 0.05 mm.

[0030] In the description of the present utility model, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and 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, and therefore should not be construed as a limitation to the present utility model.

[0031] In addition to the above embodiments, the present utility model can also have other embodiments. For those skilled in the art, it is still possible to modify the technical solutions recorded in the above embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An annular assembly line of a fully automatic screwdriver, comprising a mounting plate (1), characterized in that: One end face of the mounting plate (1) is connected to a driving motor (11). The output shaft of the driving motor (11) passes through an opening provided on the mounting plate (1) and is connected to a driving gear (7). Then, the driving gear (7) is meshed with a chain (3) connected to the other end face of the mounting plate (1). A plurality of product carriers (5) are connected to the chain (3), and products are placed above the product carriers (5). One end face of the mounting plate (1) is further connected to a cylinder positioning mechanism (6). The upper end of a precise positioning block (605) in the cylinder positioning mechanism (6) is fitted with a notch formed inwardly on one side of a carrier cross plate (503) in the product carrier (5) to achieve precise positioning of the product carrier (5).

2. The annular assembly line of a fully automatic screw machine according to claim 1, wherein: The cylinder positioning mechanism (6) includes a positioning cross plate (601) and a positioning cylinder (606) connected to one end face of the mounting plate (1). Above the positioning cross plate (601), a rotating shaft (603) is connected by supporting a support vertical plate (602). A transmission block (604) and the precise positioning block (605) are sleeved outside the rotating shaft (603), and the output shaft of the positioning cylinder (606) is connected to the transmission block (604).

3. The annular assembly line of a fully automatic screw machine according to claim 1, characterized in that: The product carrier (5) includes a carrier back plate (501). The lower end of the carrier back plate (501) is connected to the chain (3) through an adapter plate. The carrier cross plate (503) is connected to the side of the carrier back plate (501).

4. The annular assembly line of a full-automatic screwdriver according to claim 3, characterized in that: One end face of the mounting plate (1) is provided with a chain guide rail (4), and the chain guide rail (4) is slidably clamped with a carrier driving wheel (502) connected to the upper end of the carrier back plate (501).

5. The annular assembly line of a fully automatic screwdriver according to claim 4, wherein: One end face of the mounting plate (1) is further connected to a turning block (9), and a load-bearing wheel (8) is connected to the upper end of the turning block (9).

6. The annular assembly line of a full-automatic screw machine according to claim 2, characterized in that: A position sensor (10) is connected above the positioning cross plate (601) by supporting a right-angle plate.

7. The annular assembly line of a fully automatic screw machine according to claim 1, characterized in that: One end face of the mounting plate (1) is connected to a fixing plate (2), and a workbench is connected through the fixing plate (2).

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