Horizontal protection type screw gun equipment

Abstract

The utility model relates to horizontal protection type screw gun equipment which comprises a bearing plate, a transverse movement guiding assembly is installed on the bearing plate, a transverse movement driving device is movably connected to the transverse movement guiding assembly, and an installation support is connected to the transverse movement driving device. A buffer limiting device is further mounted on the transverse moving driving device; a screw gun body is installed on the front side of the installation support, the working end below the screw gun body is connected with a transmission rod through a steering knuckle, and the transmission rod is connected with a screwdriver head through a connecting assembly. A guide assembly is further installed on the front side of the installation support, and a protection device is connected to the guide assembly. Therefore, the buffering and limiting device can be used in cooperation with the stroke locking function of the adjustable air cylinder, the stopping stroke range can be dynamically adjusted, and the abnormal situation that screws are punched through is effectively prevented. And an independent protection device is arranged, so that the transmission rod is completely physically isolated from the surface of the workpiece. The structure can reduce the occurrence rate of scratches on the surface of the workpiece.

Description

Technical Field

[0001] This utility model relates to a screwdriver device, and more particularly to a horizontally protected screwdriver device. Background Technology

[0002] In current automated assembly processes, screwdrivers are often used to drive screws into place to achieve rapid and stable assembly between workpieces. Simultaneously, to improve efficiency, automated screw-driving equipment has been gradually introduced. The positioning accuracy and protective performance of such screwdrivers are key factors affecting assembly efficiency and workpiece quality. Existing technology CN209551075U provides an automatic screw-driving device with multi-segment movement speeds. While it uses a linear motor to drive the traverse device, increasing the movement speed, its guide shaft and drive slider are rigidly connected, lacking a buffer and limiting device. This can easily cause equipment resonance or workpiece damage at extreme positions.

[0003] Furthermore, the transmission rods of currently used screwdrivers are exposed, making them prone to contact with other parts of the workpiece, causing friction and scratches. There is also a possibility of abnormal deformation. During use, it is crucial to ensure adequate limit and buffering. Since the screwdriver's displacement relies entirely on traditional motors or cylinders, stripped or punctured screws are frequently produced, resulting in scrapped products.

[0004] In view of the above-mentioned shortcomings, the designer actively researched and innovated in order to create a horizontally protective screw gun device, which would have greater industrial application value. Utility Model Content

[0005] To solve the above-mentioned technical problems, the purpose of this utility model is to provide a horizontally protective screwdriver device.

[0006] This utility model relates to a horizontally protective screwdriver device, comprising a support plate, wherein: a transverse guide assembly is mounted on the support plate, a transverse drive device is movably connected to the transverse guide assembly, and a mounting bracket is connected to the transverse drive device; a buffer limiting device is also mounted on the transverse drive device; a screwdriver body is mounted on the front side of the mounting bracket, and a transmission rod is connected to the working end below the screwdriver body via a steering knuckle; the transmission rod is connected to a screwdriver bit via a connecting assembly; a guide assembly is also mounted on the front side of the mounting bracket, and a protective device is connected to the guide assembly; the protective device includes a positioning base connected to the guide assembly, and a blocking pipe is connected to the front end of the positioning base; the transmission rod passes sequentially through the guide assembly, the positioning base, and the blocking pipe, and the transmission rod does not contact the guide assembly, the positioning base, or the blocking pipe.

[0007] Furthermore, in the aforementioned horizontal protective screw gun device, the transverse guide assembly includes baffles mirror-mounted on both sides of the support plate, including a rear baffle and a front baffle. A guide shaft is installed between the rear baffle and the front baffle, and a transverse drive device is installed on the guide shaft. The transverse drive device is a linear motor, and the linear motor is equipped with a drive slider, which is connected to the mounting bracket.

[0008] Furthermore, in the aforementioned horizontal protective screw gun device, the buffer limiting device includes an adjustable cylinder mounted on the transverse drive device, and a buffer shaft is mounted on the working end of the adjustable cylinder.

[0009] Furthermore, in the aforementioned horizontal protective screw gun device, a spring is sleeved on the buffer shaft, and a bearing seat is installed on the buffer shaft at the front end of the spring, with the spring contacting the inner side of the bearing seat.

[0010] Furthermore, in the aforementioned horizontal protective screwdriver device, the mounting bracket includes a support plate connected to the transverse drive device, and several positioning clamps are distributed on the front side of the bracket, with the screwdriver body connected to the positioning clamps.

[0011] Furthermore, in the aforementioned horizontal protective screwdriver device, the support plate is connected to the transverse drive device via positioning screws, and the support plate has several weight-reducing holes; the inner side of the positioning clamp has anti-slip silicone pads.

[0012] Furthermore, in the aforementioned horizontal protective screwdriver device, the guide component is a guide block connected to the mounting bracket. The guide block has a guide hole, and a positioning base is screwed to one side of the guide block. The positioning base has a guide hole coaxial with the guide hole, and the transmission rod passes through the guide hole and the guide hole in sequence.

[0013] Furthermore, in the aforementioned horizontal protective screw gun device, the inner walls of the guide hole and the pilot hole are all nested with self-lubricating graphite bushings.

[0014] Furthermore, in the aforementioned horizontal protective screwdriver device, the connecting component is a connecting base made of permanent magnets installed at the end of the transmission rod. The end of the connecting base is provided with a positioning groove, and the tail end of the screwdriver bit is inserted into the positioning groove. The positioning groove is a hexagonal groove or a triangular groove.

[0015] By means of the above solution, this utility model has at least the following advantages:

[0016] 1. High operating displacement angle. Relying on the lateral drive device and guide shaft structure, high-precision displacement control is achieved through a digital control system. Utilizing a buffer limit device and the stroke locking function of the adjustable cylinder, the stop stroke range can be dynamically adjusted, effectively preventing abnormal situations such as screw penetration.

[0017] 2. An independent protective device is provided to completely physically isolate the transmission rod from the workpiece surface. This structure reduces the incidence of workpiece surface scratches. Simultaneously, a self-lubricating graphite bushing design is adopted, resulting in a low coefficient of friction and enabling long-term wear-free operation.

[0018] 3. A modular quick-change system is available. The mounting bracket uses a composite fixing structure of positioning clamps and sliding silicone pads, enabling the screwdriver body to be quickly disassembled and assembled in 3 seconds. The matching permanent magnet connection component supports magnetic installation of 6 standard bits (including special specifications such as hexagonal and triangular bits), with high torque transmission efficiency, improving the changeover efficiency by 80% compared to traditional threaded connection methods.

[0019] 4. The overall structure is simple and can be adapted to the layout needs of various conventional automated screw-driving equipment.

[0020] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0021] Figure 1 This is a front structural diagram of a horizontally protected screwdriver device (the transmission rod is deliberately exposed to show the structure; during actual operation, it can be fully shielded through a barrier pipe).

[0022] Figure 2 This is a schematic diagram of the rear structure of a horizontally protected screwdriver device.

[0023] The meanings of the labels in the figures are as follows.

[0024] 1. Loading plate; 2. Mounting bracket; 3. Screwdriver body; 4. Steering knuckle; 5. Drive rod; 6. Connecting assembly; 7. Screwdriver bit; 8. Guide assembly; 9. Positioning base; 10. Barrier pipe; 11. Rear baffle; 12. Front baffle; 13. Guide shaft; 14. Drive slider; 15. Adjustable cylinder; 16. Buffer shaft; 17. Spring; 18. Loading seat; 19. Positioning clamp; 20. Protruding part. Detailed Implementation

[0025] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0026] like Figures 1 to 2 The horizontal protective screwdriver device includes a support plate (1), which is unique in that: a transverse guide assembly is installed on the support plate (1), and a transverse drive device is movably connected to the transverse guide assembly, which facilitates the subsequent movement of the screwdriver body (3) forward, bringing it close to the part that needs to be screwed, and realizing screwing connection. At the same time, a mounting bracket (2) is connected to the transverse drive device, and the screwdriver body (3) is installed on the front side of the mounting bracket (2). In addition, a buffer limit device is also installed on the transverse drive device. In this way, the screwdriver body (3) can be effectively limited when it is close to the limit position, avoiding the screw from being punctured or stripped due to excessive forward movement of the screwdriver body (3) during screwing, and no manual intervention is required. It can be achieved by adjusting the buffer limit device later. Thus, in conjunction with the transverse drive device, different screwing forward distances and stop distances can be provided for different screwing conditions of different workpieces to meet the effective connection of screws. Considering that the screwdriver body (3) is installed vertically, in order to meet the need for drive steering, the working end of the screwdriver body (3) is connected to the transmission rod (5) through the steering knuckle (4), and the transmission rod (5) is connected to the bit (7) through the connecting assembly (6). During implementation, in order to avoid the transmission rod (5) from contacting the workpiece and from damaging the surface of the workpiece or causing other undue effects due to its rotation, a guide assembly (8) is also installed on the front side of the mounting bracket (2), and a protective device is connected to the guide assembly (8). Specifically, the protective device includes a positioning base (9) connected to the guide assembly (8), and a blocking pipe (10) is connected to the front end of the positioning base (9). The transmission rod (5) passes through the guide assembly (8), the positioning base (9), and the blocking pipe (10) in sequence. Furthermore, in order to avoid unnecessary rotational friction, the transmission rod (5) does not contact the guide assembly (8), the positioning base (9), or the blocking pipe (10). In other words, a non-contact gap with a width of 0.5-1.2mm is maintained between the transmission rod (5) and the guide assembly (8), the positioning base (9), and the barrier pipe (10).

[0027] In a preferred embodiment of this utility model, the transverse guide assembly includes baffles mirror-mounted on both sides of the support plate (1), including a rear baffle (11) and a front baffle (12). A guide shaft (13) is installed between the rear baffle (11) and the front baffle (12), and a transverse drive device is mounted on the guide shaft (13). During implementation, the transverse drive device is a linear motor, which is equipped with a drive slider (14) connected to the mounting bracket (2). Thus, guided by the guide shaft (13), the linear motor can control the movement of the mounting bracket (2) via the drive slider (14). This drives the screwdriver body (3) mounted on it to move synchronously, satisfying displacement control during screw driving.

[0028] Furthermore, the buffer limiting device used in this utility model includes an adjustable cylinder (15) installed on the drive slider (14) of the transverse drive device, and a buffer shaft (16) is installed at the working end of the adjustable cylinder (15). In this way, the actual length of the buffer shaft (16) can be controlled by the adjustable cylinder (15), which is used to control the actual forward stroke of the screwdriver body (3). At the same time, a spring (17) can be sleeved on the buffer shaft (16), and a bearing seat (18) is installed at the front end of the buffer shaft (16), with the spring (17) in contact with the inner side of the bearing seat (18). Moreover, a polyurethane shock-absorbing pad can be sleeved on the inner side of the bearing seat (18) to provide appropriate buffering when the spring (17) deforms, avoiding unnecessary resonance. Therefore, after the drive slider (14) drives the screwdriver body (3) to the forward limit position, the bearing seat (18) contacts the front baffle (12), the buffer shaft (16) is compressed and begins to retract towards the adjusting cylinder (15), and the spring (17) also begins to be compressed to buffer, applying force to the drive slider (14) to prevent it from moving too far forward. At the same time, the adjusting cylinder (15) is triggered to lock the buffer shaft (16), preventing the drive slider (14) from moving forward and achieving the limit. After that, the drive slider (14) returns to the initial position and can enter the next working cycle.

[0029] In practical implementation, the mounting bracket (2) includes a bracket support plate connected to the transverse drive device. Several positioning clamps (19) are distributed on the front of the bracket, and the screw gun body (3) is connected to the positioning clamps (19). This ensures the stable vertical installation of the screw gun body (3) and allows for convenient quick disassembly, facilitating subsequent maintenance. Specifically, considering the stability of the installation, the bracket support plate is connected to the drive slider (14) inside the transverse drive device via positioning screws. At the same time, several weight-reducing holes are distributed on the bracket support plate to reduce its own weight while meeting normal mounting performance, thereby reducing the operating load of the transverse drive device and the adjustable cylinder (15) during subsequent use. Of course, to avoid unnecessary shaking of the screw gun body (3) during use and to ensure a stable connection, anti-slip silicone pads are distributed on the inside of the positioning clamps (19). This increases the friction at the connection point.

[0030] Meanwhile, the guide component (8) used is a guide block connected to the mounting bracket (2), and a guide hole is provided on the guide block. Furthermore, a positioning base (9) is screwed to one side of the guide block, and the positioning base (9) is provided with a guide hole coaxial with the guide hole. During use and assembly, the transmission rod (5) passes through the guide hole and the guide hole in sequence. Moreover, the present invention can nest a self-lubricating graphite bushing on the inner wall of both the guide hole and the guide hole. In this way, even if the transmission rod (5) partially contacts the guide hole or the guide hole due to abnormal force during screwing, the self-lubricating effect can be used to avoid abnormal scraping. During implementation, such abnormalities can be automatically identified by the screw gun body (3), and the rotation speed can be reduced or the machine can be stopped for waiting. Thus, abnormal deformation of the transmission rod (5) is avoided.

[0031] Furthermore, to facilitate the adaptation of various bit types (7) and meet the installation positioning requirements of the bit (7), the connecting component (6) is a connecting base made of permanent magnets installed at the end of the transmission rod (5). In this way, the magnetic attraction method can meet the connection requirements under normal use. At the same time, for some screw-driving requirements that require high torque, in order to avoid the bit (7) rotating, the end of the connecting base is provided with a positioning groove, and the tail end of the bit (7) is inserted into the positioning groove. During implementation, the positioning groove is a hexagonal groove or a triangular groove, providing different insertion and engagement forces. Of course, it can be customized according to the actual shape of the tail end of the bit (7). Through the above text description and in conjunction with the accompanying drawings, it can be seen that the following advantages are available after adopting this utility model:

[0032] 1. High operating displacement angle. Relying on the lateral drive device and guide shaft structure, high-precision displacement control is achieved through a digital control system. Utilizing a buffer limit device and the stroke locking function of the adjustable cylinder, the stop stroke range can be dynamically adjusted, effectively preventing abnormal situations such as screw penetration.

[0033] 2. An independent protective device is provided to completely physically isolate the transmission rod from the workpiece surface. This structure reduces the incidence of workpiece surface scratches. Simultaneously, a self-lubricating graphite bushing design is adopted, resulting in a low coefficient of friction and enabling long-term wear-free operation.

[0034] 3. A modular quick-change system is available. The mounting bracket uses a composite fixing structure of positioning clamps and sliding silicone pads, enabling the screwdriver body to be quickly disassembled and assembled in 3 seconds. The matching permanent magnet connection component supports magnetic installation of 6 standard bits (including special specifications such as hexagonal and triangular bits), with high torque transmission efficiency, improving the changeover efficiency by 80% compared to traditional threaded connection methods.

[0035] 4. The overall structure is simple and can be adapted to the layout needs of various conventional automated screw-driving equipment.

[0036] Furthermore, the directions or positional relationships described in this utility model are based on the directions or positional relationships shown in the accompanying drawings. They are only for the purpose of facilitating the description of this utility model and simplifying the description, and are not intended to indicate or imply that the device or structure referred to must have a specific orientation, or to operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0037] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A horizontal guard screw gun apparatus comprising a carrier plate, characterised in that: A transverse guide assembly is mounted on the support plate, and a transverse drive device is movably connected to the transverse guide assembly. A mounting bracket is connected to the transverse drive device. A buffer limit device is also mounted on the transverse drive device. A screwdriver body is mounted on the front side of the mounting bracket. A transmission rod is connected to the working end of the screwdriver body below through a steering knuckle. A screwdriver bit is connected to the transmission rod through a connecting assembly. A guide assembly is also mounted on the front side of the mounting bracket. A protective device is connected to the guide assembly. The protective device includes a positioning base connected to the guide assembly. A blocking pipe is connected to the front end of the positioning base. The transmission rod passes through the guide assembly, the positioning base, and the blocking pipe in sequence. The transmission rod does not contact the guide assembly, the positioning base, or the blocking pipe.

2. The horizontally protected screwdriver device according to claim 1, characterized in that: The lateral guide assembly includes baffles mirror-mounted on both sides of the support plate, including a rear baffle and a front baffle. A guide shaft is installed between the rear baffle and the front baffle, and a lateral drive device is installed on the guide shaft. The lateral drive device is a linear motor, and the linear motor is equipped with a drive slider, which is connected to a mounting bracket.

3. The horizontally protected screwdriver device according to claim 1, characterized in that: The buffer limiting device includes an adjustable cylinder mounted on the transverse drive device, and a buffer shaft is installed at the working end of the adjustable cylinder.

4. The horizontally protected screwdriver device according to claim 3, characterized in that: A spring is sleeved on the buffer shaft, and a bearing seat is installed on the buffer shaft at the front end of the spring, with the spring in contact with the inner side of the bearing seat.

5. The horizontally protected screwdriver device according to claim 1, characterized in that: The mounting bracket includes a support plate connected to the transverse drive device. Several positioning clamps are distributed on the front side of the mounting bracket, and the screw gun body is connected to the positioning clamps.

6. The horizontally protected screwdriver device according to claim 5, characterized in that: The support plate is connected to the transverse drive device by positioning screws, and several weight-reducing holes are distributed on the support plate; anti-slip silicone pads are distributed on the inner side of the positioning clamp.

7. The horizontally protected screwdriver device according to claim 1, characterized in that: The guide component is a guide block connected to the mounting bracket. The guide block has a guide hole. A positioning base is screwed to one side of the guide block. The positioning base has a guide hole coaxial with the guide hole. The transmission rod passes through the guide hole and the guide hole in sequence.

8. The horizontally protected screwdriver device according to claim 7, characterized in that: The inner walls of the guide hole and the pilot hole are both nested with self-lubricating graphite bushings.

9. The horizontally protected screwdriver device according to claim 1, characterized in that: The connecting component is a connecting base made of permanent magnets installed at the end of the transmission rod. The end of the connecting base is provided with a positioning groove, and the tail end of the bit is inserted into the positioning groove. The positioning groove is a hexagonal groove or a triangular groove.

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