A shell screwing section of a disinfection cabinet production line

Abstract

The present invention relates to the technical field of disinfection cabinet production line, specifically to a shell screwing section of a disinfection cabinet production line, comprising: a conveyor line, wherein a tooling plate is arranged on the conveyor line; a workpiece limiting device, which is arranged on the conveyor line and is used to limit the workpiece on the tooling plate; an automatic screwing robot, which is arranged on one side of the conveyor line and is used to screw the workpiece; a screw conveying mechanism, which is arranged on one side of the automatic screwing robot and is used to convey the screws to the automatic screwing robot. In the shell screwing section of a disinfection cabinet production line of the present invention, the entire screwing process does not require manual participation, which not only saves labor costs, but also greatly improves production efficiency, and the quality of the products produced is stable and reliable.

Description

Technical Field

[0001] The invention relates to the technical field of disinfection cabinet production lines, in particular to a shell screw driving section of a disinfection cabinet production line. Background Art

[0002] In the production process of disinfection cabinets, there is generally a process of fixing the U-shaped shell on the disinfection cabinet shell, and the connection between the two is usually tightened with screws. In the existing disinfection cabinet production line, the U-shaped shell is usually fixed on the disinfection cabinet shell by manually tightening the screws, which has low work efficiency, high labor costs, and it is difficult to manually control product quality. Summary of the invention

[0003] The purpose of the present invention is to propose a shell screw driving section of a disinfection cabinet production line, aiming to solve the technical problems of low working efficiency, high labor cost and difficulty in controlling product quality in the prior art screw driving process.

[0004] To achieve the above object, the present invention proposes a shell screwing section of a disinfection cabinet production line, comprising:

[0005] A conveyor line, wherein a tooling plate is provided on the conveyor line;

[0006] A workpiece limiting device, which is arranged on the conveyor line and is used to limit the workpiece on the tooling plate;

[0007] An automatic screw driving robot, which is arranged on one side of the conveyor line and is used for driving screws on the workpiece;

[0008] The screw conveying mechanism is arranged on one side of the automatic screw driving robot and is used to convey the screws to the automatic screw driving robot. The entire screw driving process does not require manual participation, which not only saves labor costs, but also greatly improves production efficiency, and the quality of the products produced is stable and reliable.

[0009] Preferably, the workpiece limiting device includes a limiting frame and an X-axis limiting mechanism, the limiting frame is installed on the conveyor line; the X-axis limiting mechanism includes an X-axis limiting plate and an X-axis limiting cylinder, the X-axis limiting cylinder is installed on the limiting frame, and the X-axis limiting plate is installed on the output end of the X-axis limiting cylinder. The X-axis limiting mechanism can limit the workpiece in the X-axis direction when the automatic screw driving robot is working, avoid the workpiece shaking, ensure the normal operation, and confirm the quality of the product.

[0010] Preferably, the X-axis limit plate is provided with a first clamping block and a second clamping block on a side close to the workpiece, and a gap for accommodating the workpiece is left between the first clamping block and the second clamping block. The first clamping block and the second clamping block can clamp the workpiece to a certain extent, making the workpiece more stable.

[0011] Preferably, the workpiece limiting device also includes a Y-axis limiting mechanism installed on the limiting frame; the Y-axis limiting mechanism includes a first Y-axis limiting cylinder, a first limiting block, a second Y-axis limiting cylinder and a second limiting block; the first limiting block and the second limiting block are respectively installed at the output ends of the first Y-axis limiting cylinder and the second limiting cylinder; the first Y-axis limiting cylinder and the second Y-axis limiting cylinder are spaced apart so that the workpiece can be accommodated between the first limiting block and the second limiting block. The Y-axis limiting mechanism can limit the workpiece in the Y-axis direction when the automatic screw driving robot is working, avoid the workpiece from shaking, ensure the normal operation, and confirm the quality of the product.

[0012] Preferably, the Y-axis limiting mechanism is arranged at the upper end of the limiting frame, and the first limiting block comprises a horizontal portion for abutting against the top surface of the workpiece and a vertical portion for abutting against the side surface of the workpiece. The shape of the first limiting block can not only enable the Y-axis limiting mechanism to limit the workpiece in the Y-axis direction, but also limit the workpiece in the Z-axis direction.

[0013] The horizontal part is mounted on the output end of the first Y-axis limit cylinder, and a receiving groove is provided on the plane of the horizontal part close to the workpiece, and the receiving groove is used to receive a connecting piece connecting the horizontal part and the output end of the first Y-axis limit cylinder. The connecting piece connecting the horizontal part and the output end of the first Y-axis limit cylinder is hidden in the receiving groove, so the surface of the horizontal part abutting against the workpiece is flat, and the first limit block clamps the workpiece more stably.

[0014] Preferably, the upper end of the limiting frame is detachably provided with a top extension rod extending toward the side where the workpiece is located, and the Y-axis limiting mechanism is arranged on the top extension rod. Such arrangement enables the Y-axis limiting mechanism to be closer to the middle of the workpiece, so that when the Y-axis limiting mechanism limits the workpiece, the force acting on it is more balanced and the workpiece is more stable.

[0015] Preferably, the automatic screw driving robot comprises a six-axis manipulator capable of six-axis linkage and an automatic screw driving machine mounted on the six-axis manipulator. The six-axis manipulator enables the automatic screw driving machine to perform screw driving operations on various surfaces of the workpiece at will.

[0016] Preferably, the automatic screw driving machine comprises a connection seat, a guide rail, a slider, a driving cylinder, a motor and a screw gun, wherein the connection seat is mounted on the six-axis manipulator, the guide rail is mounted on the connection seat, the slider is slidably mounted on the guide rail and connected to the output end of the driving cylinder, the motor is mounted on the slider, and the screw gun is mounted on the output end of the motor. The setting of the automatic screw driving machine makes screw driving fully automated, fast and stable.

[0017] Preferably, the automatic screw driver further comprises a camera and a light source, wherein the camera is mounted on the connection base and faces the workpiece in a shooting direction, and the light source is mounted on the connection base and is located in front of the camera. The camera can be used to detect whether the position is accurate, and the light source is arranged in front of the camera to ensure that the photos taken by the camera are displayed clearly.

[0018] Preferably, the screw conveying mechanism includes a vibration plate, a blowing device and a conveying pipeline, the output end of the vibration plate is connected to the automatic screw driving robot through the conveying pipeline, and the blowing device is used to blow the screws at the output end of the vibration plate into the conveying pipeline and onto the automatic screw driving robot. The entire screw driving process has a high degree of automation and low labor costs.

[0019] Preferably, the tooling plate is provided with a positioning block. Providing the positioning block can make the workpiece loading faster and more accurate, and can limit the workpiece to a certain extent, so as to prevent the workpiece from shaking or tilting during transmission.

[0020] The shell screw driving section of a disinfection cabinet production line of the present invention has at least the following beneficial effects: the circulation of workpieces is handled by the conveyor line, which reduces the cost of manual transportation of workpieces and makes the circulation efficiency of workpieces higher; the automatic screw driving robot can automatically drive screws to the workpieces, and the supply of screws is handled by the screw conveying mechanism, so the entire screw driving process does not require manual participation, which not only saves labor costs, but also greatly improves production efficiency, and the quality of products produced is stable and reliable; the workpiece limiting device arranged on the conveyor line can position and limit the workpiece, so that the workpiece can be stably supported on the tooling plate when driving the screws to avoid shaking, thereby ensuring the efficiency and accuracy of the screw driving and making the product quality more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention 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 present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0022] Figure 1 This is a structural schematic diagram of the screw-driving section of the housing of the present invention;

[0023] Figure 2 This is a schematic diagram of the top view of the screw driving section of the housing of the present invention;

[0024] Figure 3 It is a structural schematic diagram of the workpiece limiting device of the present invention;

[0025] Figure 4 for Figure 3A schematic diagram of the partially enlarged structure of part A;

[0026] Figure 5 for Figure 3 A schematic diagram of the local enlarged structure of part B;

[0027] Figure 6 for Figure 3 A schematic diagram of the local enlarged structure of part C in the middle;

[0028] Figure 7 It is a structural schematic diagram of the workpiece limiting device of the present invention from another angle;

[0029] Figure 8 It is a structural schematic diagram of the first limit block of the present invention;

[0030] Fig. 9 It is a structural schematic diagram of the first limit block of the present invention from another angle;

[0031] Fig.10 This is a schematic diagram of the structure of the automatic screw driving robot of the present invention;

[0032] Fig.11 It is a structural schematic diagram of the automatic screw driving machine of the present invention;

[0033] Fig.12 This is a schematic diagram of the main structure of the automatic screw driving machine of the present invention;

[0034] Fig.13 It is a structural schematic diagram of the tooling plate of the present invention.

[0035] In the attached drawings: 1- conveyor line, 11- tooling plate, 111- positioning block, 2- workpiece limiting device, 21- limiting frame, 211- top extension rod, 22- X-axis limiting mechanism, 221- X-axis limiting plate, 2211- first clamping block, 2212- second clamping block 2212, 222- X-axis limiting cylinder, 23- Y-axis limiting mechanism, 231- first Y-axis limiting cylinder, 232- first limiting block, 2321- horizontal part, 23211- container Groove, 2322-vertical part, 233-second Y-axis limiting cylinder, 234-second limiting block, 3-automatic screw driving robot, 31-six-axis manipulator, 32-automatic screw driving machine, 321-connecting seat, 322-guide rail, 323-slider, 324-driving cylinder, 325-motor, 326-screw gun, 237-camera, 328-light source, 4-screw conveying mechanism, 41-vibration plate, 42-blowing device, 43-conveying pipeline.

[0036] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. 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.

[0038] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0039] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0040] like Figures 1 to 10 As shown, a shell screwing section of a disinfection cabinet production line includes:

[0041] A conveyor line 1, wherein a tooling plate 11 is provided on the conveyor line 1;

[0042] A workpiece limiting device 2, which is arranged on the conveyor line 1 and is used to limit the workpiece on the tooling plate 11;

[0043] An automatic screw driving robot 3, which is arranged at one side of the conveyor line 1 and is used for driving screws on the workpiece;

[0044] The screw conveying mechanism 4 is arranged at one side of the automatic screw driving robot 3 and is used for conveying screws to the automatic screw driving robot 3 .

[0045] The conveyor line 1 is a carrying device for the workpiece to move on the production line, which can be specifically transmitted by rollers; a tooling plate 11 is arranged on the conveyor line 1, and the tooling plate 11 is used to carry the workpiece and drive the workpiece to be transmitted on the conveyor line 1. The workpiece limiting device 2 is arranged on the conveyor line 1 and is located at the side of the conveyor line 1; the automatic screw driving robot 3 is arranged on one side of the conveyor line 1 and is located on both sides of the conveyor line 1 with the workpiece limiting device 2; the workpiece limiting device 2 and the automatic screw driving robot 3 are arranged opposite to each other, and when the tooling plate 11 carrying the workpiece moves to a position between the two, the workpiece limiting device 2 limits and fixes the workpiece, and the automatic screw driving robot 3 drives screws into the position where the workpiece needs to be connected by screws; a screw conveying mechanism 4 is arranged on one side of the automatic screw driving robot 3, and the screw conveying mechanism 4 is used to continuously convey screws to the automatic screw driving robot 3, so that the automatic screw driving robot 3 can screw screws into the threaded holes of the workpiece.

[0046] The conveyor line 1 can adopt a double-speed chain conveyor line, which is mainly used for material transportation in assembly and processing production lines. Its conveying principle is to use the speed-increasing function of the double-speed chain to make the tooling board supporting the goods on it run quickly and stop at the corresponding operating position through the blocker; or complete the accumulation action and the functions of shifting, shifting, and changing lines through corresponding instructions. Therefore, the tooling board 11 on the conveyor line 1 can be accurately moved to a specific position. The double-speed chain conveyor line has a large conveying capacity, can carry a large load, and has an accurate and stable conveying speed, which can ensure accurate synchronous conveying.

[0047] The number of automatic screw driving robots 3 can be multiple, and each automatic screw driving robot 3 can be provided with a corresponding screw conveying mechanism 4, so the number of screw conveying mechanisms 4 can also be multiple, and the number is the same as the number of automatic screw driving robots 3. In general, multiple faces of a workpiece need to be fixed with screws, and multiple screws need to be screwed into each face, so a workpiece needs to be screwed into multiple screws; and multiple automatic screw driving robots 3 are provided, and screws can be driven into different faces and different positions of the workpiece synchronously, thereby improving production efficiency in turn. For example, when the screw driving section is applied to the production line of a disinfection cabinet and is used to fix the U-shaped shell on the shell, the previous process can cover the U-shaped shell on the shell by manual or mechanical hands, wherein the three faces corresponding to the U-shaped shell and the shell are provided with corresponding threaded holes; then the U-shaped shell and the shell are moved to the corresponding position of the workpiece limiting mechanism under the action of the conveyor line 1, and the automatic screw driving robot 3 screws into the threaded holes on the three faces of the U-shaped shell; when multiple automatic screw driving robots 3 are provided, multiple automatic screw driving robots 3 can simultaneously screw into the threaded holes on the three faces of the U-shaped shell. Of course, in order to reduce costs and avoid the need for the automatic screw-driving robots 3 to avoid each other, preferably, the number of the automatic screw-driving robots 3 is set to two, which can both improve production efficiency and avoid excessive costs.

[0048] In the production process of disinfection cabinets, it generally includes a process of fixing the U-shaped shell on the disinfection cabinet shell, and the connection and fixation between the two is usually tightened with screws. In the existing disinfection cabinet production line, the U-shaped shell is fixed on the disinfection cabinet shell and is usually screwed manually. This method has low work efficiency, high labor cost, and it is difficult to control the product quality manually. In this technical solution, the flow of workpieces is responsible for the conveyor line 1, which reduces the cost of manual transportation of workpieces and has higher workpiece flow efficiency; the automatic screwing robot 3 can automatically screw the workpiece, and the supply of screws is responsible for the screw conveying mechanism 4, so the entire screwing process does not require manual participation, which not only saves labor costs, but also greatly improves production efficiency, and the quality of the products produced is stable and reliable; the workpiece limiting device 2 set on the conveyor line 1 can position and limit the workpiece, so that the workpiece can be stably carried on the tooling plate 11 when screwing, and avoid shaking, thereby ensuring the efficiency and accuracy of screwing, making the product quality more stable.

[0049] Furthermore, the workpiece limiting device 2 includes a limiting frame 21 and an X-axis limiting mechanism 22, and the limiting frame 21 is installed on the conveyor line 1; the X-axis limiting mechanism 22 includes an X-axis limiting plate 221 and an X-axis limiting cylinder 222, and the X-axis limiting cylinder 222 is installed on the limiting frame 21, and the X-axis limiting plate 221 is installed on the output end of the X-axis limiting cylinder 222.

[0050] The limit frame 21 is installed on the conveyor line 1 and protrudes above the conveyor line 1; the X-limit mechanism is installed on the limit frame 21 and is located above the conveyor line 1; the X-axis limit cylinder 222 is installed on the limit frame 21, and the output end of the X-axis limit cylinder 222 faces the side where the conveyor line 1 is located, and the X-axis limit plate 221 is installed on the output end of the X-axis limit cylinder 222, so when the output end of the X-axis limit cylinder 222 is extended, the X-axis limit plate 221 can be close to the workpiece on the conveyor line 1. The direction perpendicular to the conveying direction of the conveyor line 1 on the positioning horizontal plane is the X-axis direction, so the X-axis limit mechanism 22 can limit the workpiece in the X-axis direction. When the automatic screw driving robot 3 screws the side of the workpiece away from the workpiece limit device 2, the workpiece will be subjected to the thrust of the automatic screw driving robot 3 driving the workpiece close to the workpiece limit device 2. At this time, the X-axis limit cylinder 222 is extended, which can offset the thrust and prevent the workpiece from shaking or even falling off the tooling plate 11. The X-axis limiting mechanism 22 can be provided to limit the workpiece in the X-axis direction when the automatic screw driving robot 3 is working, so as to avoid the workpiece from shaking, ensure the normal operation, and confirm the quality of the product.

[0051] Preferably, the number of the X-axis limiting mechanisms 22 can be set to be multiple and arranged along the vertical direction of the limiting frame 21. For example, two X-axis limiting mechanisms 22 are provided and arranged vertically corresponding to each other on the limiting frame 21. When the height of the workpiece is relatively high, setting two or more X-axis limiting mechanisms 22 can further ensure that the workpiece is not prone to shaking and falling during the processing.

[0052] Further, a first clamping block 2211 and a second clamping block 2212 are arranged on one side of the X-axis limiting plate close to the workpiece, and a gap for accommodating the workpiece is left between the first clamping block 2211 and the second clamping block 2212.

[0053] The X-axis limiting plate is a long strip-shaped plate member, and its length is greater than the width of the workpiece in the Y-axis direction; a first clamping block 2211 and a second clamping block 2212 are arranged on one side of the X-axis limiting plate close to the workpiece, and the first clamping block 2211 and the second clamping block 2212 are close to both ends of the X-axis limiting plate; the gap between the first clamping block 2211 and the second clamping block 2212 is greater than the width of the workpiece in the Y-axis direction. When the X-axis limiting plate abuts against the back surface of the workpiece, the opposite planes of the first clamping block 2211 and the second clamping block 2212 respectively abut against the left side surface and the right side surface of the workpiece, that is, the X-axis limiting plate, the first clamping block 2211 and the second clamping block 2212 are approximately in a "冂" shape to clamp the workpiece. Such a setting of the X-axis limiting plate can not only limit the workpiece in the X-axis direction but also limit the workpiece in the Y-axis direction, increasing the stability of the workpiece.

[0054] Further, the workpiece limiting device 2 further includes a Y-axis limiting mechanism 23 installed on the limiting frame 21; the Y-axis limiting mechanism 23 includes a first Y-axis limiting air cylinder 231, a first limiting block 232, a second Y-axis limiting air cylinder 233 and a second limiting block 234; the first limiting block 232 and the second limiting block 234 are respectively installed at the output ends of the first Y-axis limiting air cylinder 231 and the second limiting air cylinder; the first Y-axis limiting air cylinder 231 and the second Y-axis limiting air cylinder 233 are arranged at intervals so that the workpiece can be accommodated between the first limiting block 232 and the second limiting block 234.

[0055] The first Y-axis limit cylinder 231 and the second Y-axis limit cylinder 233 are both installed on the limit frame 21. In the initial state, the horizontal height of the two is greater than the horizontal height of the workpiece; the extension direction of the output ends of the first Y-axis limit cylinder 231 and the second Y-axis limit cylinder 233 is the vertical direction, that is, when the output ends of the two extend, the first limit block 232 and the second limit block 234 move from top to bottom and gradually approach the workpiece. The first Y-axis limit cylinder 231 and the second Y-axis limit cylinder 233 are arranged at intervals, so there is a gap between the first limit block 232 and the second limit block 234, and the workpiece can be located in the gap. When the workpiece moves to the corresponding position of the workpiece limiting device 2, the output end of the first Y-axis limit cylinder 231 and the output end of the second Y-axis limit cylinder 233 extend, so that the first limit block 232 and the second limit block 234 drop a certain distance to limit the workpiece. The conveying direction of the conveyor line 1 is defined as the Y-axis direction, and the first Y-axis limit cylinder 231 and the second Y-axis limit cylinder 233 are arranged along the Y-axis direction. When the automatic screw driving robot 3 drives screws on the side of the workpiece in the Y-axis direction, there will be a thrust on the workpiece, and the Y-axis limit mechanism 23 can offset the thrust. Setting the Y-axis limit mechanism 23 can limit the workpiece in the Y-axis direction when the automatic screw driving robot 3 is working, avoid the workpiece from shaking, ensure the normal operation, and confirm the quality of the product.

[0056] Furthermore, the Y-axis limiting mechanism 23 is arranged at the upper end of the limiting frame 21, and the first limiting block 232 includes a horizontal portion 2321 for abutting against the top surface of the workpiece and a vertical portion 2322 for abutting against the side surface of the workpiece.

[0057] The first limit block 232 is composed of a horizontal portion 2321 and a vertical portion 2322 that are perpendicular to each other, that is, the shape of the first limit block 232 is similar to an L shape; when the first limit block 232 limits the workpiece, the horizontal portion 2321 abuts against the top surface of the workpiece, and the vertical portion 2322 abuts against the side surface of the workpiece; the shape of the second limit block 234 is the same as that of the first limit block 232. When the first limit block 232 and the second limit block 234 limit the workpiece, specifically, the horizontal portion 2321 of the first limit block 232 and the second limit block 234 abuts against the top surface of the workpiece, and the vertical portions 2322 of the first limit block 232 and the second limit block 234 abut against two opposite side surfaces of the workpiece respectively. The shapes of the first limit block 232 and the second limit block 234 can not only enable the Y-axis limit mechanism 23 to limit the workpiece in the Y-axis direction, but also limit the workpiece in the Z-axis direction. The combined effect of the X-axis limiting mechanism 22 and the Y-axis limiting mechanism 23 enables the workpiece to be stably supported on the tooling plate 11 during the screw driving process, and will not easily shake in any direction.

[0058] The horizontal part is installed on the output end of the first Y-axis limit cylinder. The horizontal part has a receiving groove 23211 on a plane close to the workpiece. The receiving groove 23211 is used to accommodate a connecting piece connecting the horizontal part and the output end of the first Y-axis limit cylinder.

[0059] The first limit block is installed on the output end of the first Y-axis limit cylinder through a connecting piece (not shown in the figure), and specifically, the horizontal part is connected to the output end of the first Y-axis limit cylinder. In order to make the surface of the horizontal part in contact with the workpiece sufficiently flat, a receiving groove 23211 for accommodating the connecting piece is provided on the plane of the horizontal part close to the workpiece, and the connecting piece is located in the receiving groove 23211 and does not contact the workpiece, or the connecting piece is flush with the surface of the horizontal part and contacts the workpiece together.

[0060] The second limit block has the same structure as the first limit block, which will not be described in detail here.

[0061] Furthermore, a top extension rod 211 extending toward the side where the workpiece is located is detachably provided at the upper end of the limiting frame 21 , and the Y-axis limiting mechanism 23 is provided on the top extension rod 211 .

[0062] The limit frame 21 is perpendicular to the conveying plane of the conveyor line 1, and the top extension rod 211 is perpendicular to the limit frame 21, so the top extension rod 211 is parallel to the conveying plane of the conveyor line 1 and is located directly above the conveying plane. There are two top extension rods 211, which are parallel to each other and at the same horizontal height; the first Y-axis limit cylinder 231 and the second Y-axis limit cylinder 233 are respectively installed on different top extension rods 211, and are close to the end of the top extension rod 211 away from the limit frame 21. This arrangement allows the Y-axis limit mechanism 23 to be closer to the middle of the workpiece, so when the Y-axis limit mechanism 23 limits the workpiece, the force is more balanced and the workpiece is more stable.

[0063] Furthermore, the automatic screw-driving robot 3 includes a six-axis manipulator 31 capable of six-axis linkage and an automatic screw-driving machine 32 installed on the six-axis manipulator 31 .

[0064] The six-axis manipulator 31 can be linked with six axes to simulate the movements of each joint of the human hand; the first axis is the part connected to the base, which mainly bears the weight of the upper axis and the left and right rotation of the base. A left and right rotation movement is the result of using the motor 325 and the reducer transmission; the second axis controls the forward and backward swing of the main arm of the manipulator and the up and down movement of the entire main arm; the third axis also controls the forward and backward swing function of the manipulator, but the swing arm range is smaller than that of the second axis; the fourth axis controls the free rotation of the circular tube on the manipulator, and the range of movement is equivalent to that of a human forearm, but it is not 360° rotation. There are wires inside that have the same range as that of a human forearm; the fifth axis controls the fine-tuning up and down flipping action, which is usually an action that can flip the product after the product is grasped; the sixth axis is the rotation function of the end flange, which can rotate 360°. The automatic screw driver 32 is installed on the six-axis manipulator 31, specifically on the flange at the end of the sixth axis. The six-axis manipulator 31 allows the automatic screw driver 32 to freely perform screwing operations on various surfaces of the workpiece.

[0065] Furthermore, the automatic screw driver 32 includes a connecting seat 321, a guide rail 322, a slider 323, a driving cylinder 324, a motor 325 and a screw gun 326. The connecting seat 321 is installed on the six-axis manipulator 31, the guide rail 322 is installed on the connecting seat 321, the slider 323 is slidably installed on the guide rail 322 and is connected to the output end of the driving cylinder 324, the motor 325 is installed on the slider 323, and the screw gun 326 is installed at the output end of the motor 325.

[0066] The connection seat 321 is installed on the six-axis machine, the guide rail 322 is installed on the connection seat 321, and the length direction of the guide rail 322 is the direction in which the screw gun 326 approaches or moves away from the workpiece processing surface when the screw gun 326 is perpendicular to the workpiece processing surface; the slider 323 is slidably installed on the slide rail, the driving cylinder 324 is installed on the connection seat 321, and the slider 323 is also connected to the output end of the driving cylinder 324, so that when the output end of the driving cylinder 324 is extended or contracted, the slider 323 can be driven to slide on the guide rail 322. The motor 325 is installed on the slider 323, and the screw gun 326 is installed at the output end of the motor 325. The motor 325 can drive the screw gun 326 to rotate to tighten the screw. The screw conveying mechanism 4 specifically conveys the screws to the screw gun 326. When the six-axis manipulator 31 works to direct the screw gun 326 toward the threaded hole, the output end of the driving cylinder 324 extends, driving the slider 323 to move, thereby making the screw gun 326 close to the threaded hole; the motor 325 is started synchronously, thereby causing the screw rod to rotate around its axis, thereby screwing the screw provided by the screw conveying mechanism 4 into the threaded hole. The setting of the automatic screw driving machine 32 makes screw driving fully automated, fast and stable.

[0067] Furthermore, the automatic screw driver 32 also includes a camera 237 and a light source 328 . The camera 237 is mounted on the connection base 321 and its shooting direction is toward the workpiece. The light source 328 is mounted on the connection base 321 and is located in front of the camera 237 .

[0068] The camera 237 is used to take pictures, and the light source 328 is used to emit light and illuminate the part to be photographed by the camera 237. The camera 237 is installed on the connection seat 321, and it can take pictures of the threaded connection; the pictures taken can be transmitted to the control system to determine whether the screw gun 326 is in place; when the screw gun 326 has tightened the screw, the camera 237 can also take pictures after the screw is tightened, so as to reflect whether the screw is tightened in place. The setting of the camera 237 can be used to detect whether the position is accurate, and the light source 328 is set in front of the camera 237 to ensure that the pictures taken by the camera 237 are clear.

[0069] Furthermore, the screw conveying mechanism 4 includes a vibration disk 41, a blowing device 42 and a conveying pipe 43. The output end of the vibration disk 41 is connected to the automatic screw driving robot 3 through the conveying pipe 43. The blowing device 42 is used to blow the screws at the output end of the vibration disk 41 into the conveying pipe 43 and blow them onto the automatic screw driving robot 3.

[0070] A large number of screws are placed on the vibration plate 41, and the screws are output in an orderly manner through the action of the vibration plate 41; the delivery pipe 43 connects the output end of the vibration plate 41 and the automatic screw driving robot 3, specifically the screw gun 326, and the blowing device can blow the screws output from the vibration plate 41 into the delivery pipe 43 and blow them into the screw gun 326. The delivery pipe 43 is made of plastic pipe. The setting of the vibration plate 41 can make the screws output in an orderly and directionally manner, and the setting of the blowing device 42 and the delivery pipe 43 enables the screws to be delivered to the automatic screw driving robot 3 as required; the entire screw driving process has a high degree of automation and low labor costs.

[0071] Furthermore, the tooling plate 11 is provided with a positioning block 111 .

[0072] The tooling plate 11 is rectangular in shape, and a positioning block 111 is arranged on the upper surface of the tooling plate 11. There are multiple positioning blocks 111, and they are arranged on the four sides of the tooling plate 11; the positioning blocks 111 are used to position and limit the workpiece; when the workpiece is placed on the tooling plate 11, the positioning blocks 111 surround the bottom end of the workpiece. The positioning blocks 111 can make the workpiece loading faster and more accurate, and can limit the workpiece to a certain extent, avoiding shaking and tilting of the workpiece during transmission.

[0073] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A shell screwing section of a disinfection cabinet production line, characterized in that: include: A conveyor line (1), wherein a tooling plate (11) is provided on the conveyor line (1); A workpiece limiting device (2), which is arranged on the conveyor line (1) and is used to limit the workpiece on the tooling plate (11); An automatic screw driving robot (3), which is arranged on one side of the conveyor line (1) and is used for driving screws on workpieces; A screw conveying mechanism (4), which is arranged on one side of the automatic screw driving robot (3) and is used to convey screws to the automatic screw driving robot (3); The workpiece limiting device (2) comprises a limiting frame (21) and an X-axis limiting mechanism (22), wherein the limiting frame (21) is mounted on the conveyor line (1); the X-axis limiting mechanism (22) comprises an X-axis limiting plate (221) and an X-axis limiting cylinder (222), wherein the X-axis limiting cylinder (222) is mounted on the limiting frame (21), and the X-axis limiting plate (221) is mounted on the output end of the X-axis limiting cylinder (222); The X-axis limiting plate is provided with a first clamping block (2211) and a second clamping block (2212) on a side close to the workpiece, and a gap for accommodating the workpiece is left between the first clamping block (2211) and the second clamping block (2212); The workpiece limiting device (2) further comprises a Y-axis limiting mechanism (23) mounted on the limiting frame (21); the Y-axis limiting mechanism (23) comprises a first Y-axis limiting cylinder (231), a first limiting block (232), a second Y-axis limiting cylinder (233) and a second limiting block (234); the first limiting block (232) and the second limiting block (234) are respectively mounted on the output ends of the first Y-axis limiting cylinder (231) and the second Y-axis limiting cylinder (233); the first Y-axis limiting cylinder (231) and the second Y-axis limiting cylinder (233) are arranged at intervals so that the workpiece can be accommodated between the first limiting block (232) and the second limiting block (234); The Y-axis limiting mechanism (23) is arranged at the upper end of the limiting frame (21), and the first limiting block (232) comprises a horizontal portion (2321) for abutting against the top surface of the workpiece and a vertical portion (2322) for abutting against the side surface of the workpiece; The automatic screw driving robot (3) comprises a six-axis manipulator (31) capable of six-axis linkage and an automatic screw driving machine (32) mounted on the six-axis manipulator (31); The upper end of the limiting frame (21) is detachably provided with a top extension rod (211) extending toward the side where the workpiece is located, and the Y-axis limiting mechanism (23) is arranged on the top extension rod (211); The tooling plate (11) is provided with four positioning blocks (111), and the four positioning blocks (111) are arranged at four sides of the tooling plate (11), and when a workpiece is placed on the tooling plate (11), the positioning blocks (111) surround the bottom end of the workpiece; Two X-axis limiting mechanisms (22) are provided, and are correspondingly arranged in the vertical direction of the limiting frame (21) from top to bottom.

2. The shell screwing section of a disinfection cabinet production line according to claim 1 is characterized in that: The horizontal portion (2321) is mounted on the output end of the first Y-axis limit cylinder (231), and the horizontal portion (2321) is provided with a receiving groove (23211) on a plane close to a side of the workpiece, and the receiving groove (23211) is used to receive a connecting piece connecting the horizontal portion (2321) and the output end of the first Y-axis limit cylinder (231).

3. The shell screwing section of a disinfection cabinet production line according to claim 1 is characterized in that: The automatic screw driver (32) comprises a connecting seat (321), a guide rail (322), a slider (323), a driving cylinder (324), a motor (325) and a screw gun (326); the connecting seat (321) is mounted on the six-axis manipulator (31); the guide rail (322) is mounted on the connecting seat (321); the slider (323) is slidably mounted on the guide rail (322) and connected to the output end of the driving cylinder (324); the motor (325) is mounted on the slider (323); and the screw gun (326) is mounted on the output end of the motor (325).

4. The shell screwing section of a disinfection cabinet production line according to claim 3 is characterized in that: The automatic screw driving machine (32) further comprises a camera (237) and a light source (328); the camera (237) is mounted on the connecting seat (321) and its shooting direction is toward the workpiece; the light source (328) is mounted on the connecting seat (321) and is located in front of the camera (237).

5. The shell screwing section of a disinfection cabinet production line according to claim 1 is characterized in that: The screw conveying mechanism (4) comprises a vibration plate (41), a blowing device (42) and a conveying pipeline (43); the output end of the vibration plate (41) is connected to the automatic screw driving robot (3) through the conveying pipeline (43); the blowing device (42) is used to blow the screws at the output end of the vibration plate (41) into the conveying pipeline (43) and onto the automatic screw driving robot (3).

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