A welding fixture for supporting the screen core of a vibrating screen

Abstract

This invention provides a welding fixture for vibrating screen core supports, belonging to the field of welding fixture technology. It includes a feeding device, a positioning welding device, and a finished product recovery device. The feeding device has a storage area for placing the screen core supports to be welded and has the freedom to move the screen core supports one by one towards one side. The positioning welding device is located on one side of the feeding device in the direction of screen core support movement. The two end plates to be welded to the screen core supports are respectively connected to the positioning welding device, which is suitable for fixing the screen core supports and the two end plates. The finished product recovery device is connected to the feeding device and has a finished product area, suitable for receiving the welded screen core supports and guiding them to the finished product area. The vibrating screen core support welding fixture provided by this invention has the technical advantages of satisfying the welding requirements of vibrating screen core supports, accurate welding positioning, simple structure, low cost, and high production efficiency.

Description

Technical Field

[0001] This invention belongs to the field of welding fixture technology, and more specifically, relates to a welding fixture for supporting the core of a vibrating screen. Background Technology

[0002] A vibrating screen in an asphalt mixing plant typically consists of a screen core, a vibrating system, and a screen housing. Specifically, the vibrating screen is driven by two motors. During operation, the two motors rotate synchronously in opposite directions, causing the eccentric blocks to generate impact forces. These impact forces cancel each other out horizontally and combine into a resultant force perpendicular to the motor shafts. Therefore, the screen's trajectory is linear, and the two motor shafts have an angle relative to the screen surface. Under the combined action of the impact force and gravity, the material is thrown onto the screen, jumping forward in a straight line, thus achieving the purpose of screening and grading. The vibrating screen core mainly consists of large side plates on both sides, a screen core support for the screen, the screen itself, and a screen holder and a screen tensioner for tightening the screen. As the core component of the vibrating screen and subjected to vibration loads for extended periods, the screen core requires high-quality manufacturing. Generally, the screen core support is a slender rod, such as a round tube, and its two ends need to be welded to the end plate. Since the vibrating screen core support is numerous and the welding precision requirement is high, and the screen core support is mostly a slender rod, the existing automatic welding equipment is not convenient to weld it, and the equipment investment cost is high and the welding efficiency is low. Summary of the Invention

[0003] The purpose of this invention is to provide a welding fixture for the screen core support of a vibrating screen, which aims to solve the technical problems of inconvenient operation and low welding efficiency in welding the screen core support and end plate of a vibrating screen.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is: to provide a welding fixture for supporting the core of a vibrating screen, comprising:

[0005] The feeding device has a storage area for placing the screen core supports to be welded, and the feeding device has the freedom to move the screen core supports one by one toward one side.

[0006] A positioning welding device is located on one side of the screen core support of the feeding device in the direction of movement. The two end plates to be welded to the screen core support are respectively connected to the positioning welding device. The positioning welding device is suitable for fixing the screen core support and the two end plates. The feeding device is used to move the screen core support to the positioning welding device one by one.

[0007] A finished product recycling device is connected to the feeding device and has a finished product area suitable for storing welded screen core supports. The finished product recycling device is suitable for receiving the welded screen core supports and guiding them to the finished product area.

[0008] In one possible implementation, the feeding device includes:

[0009] Frame;

[0010] The feeding track is connected to the upper end of the frame and is set at an angle with the height of one end closer to the positioning and welding device being lower than the height of the other end. The upper end of the feeding track forms a storage area for stacking screen core supports. The screen core supports located in the storage area have a degree of freedom to roll toward the positioning and welding device.

[0011] An end baffle is fixedly connected to one end of the frame, and the end baffle is used to restrict the axial movement of one end of the screen core support located on the feeding track.

[0012] A cylinder-driven adjusting baffle is connected to the other end of the frame and has a degree of freedom to move along the axial direction of the screen core support. The cylinder-driven adjusting baffle is used to push the other end of the screen core support located on the feeding track to move along its axial direction, so that the screen core support is restricted between the end baffle and the cylinder-driven adjusting baffle.

[0013] A feeding opening and closing device is connected to the upper end of the frame and is located near the positioning and welding device. It is used to move the screen core support near the positioning and welding device one by one toward the positioning and welding device.

[0014] In one possible implementation, the feeding device further includes:

[0015] A limit adjustment device is connected to the upper end of the frame and is adapted to limit the position of the cylinder-driven adjustment baffle.

[0016] In one possible implementation, an extension rail is telescopically inserted at one end of the feeding track near the positioning welding device. The extension rail is along the length of the feeding track. A cylinder is connected to the side of the extension rail. The cylinder is adapted to drive the extension rail to extend and retract within the feeding track to adjust the extension length of the extension rail. When the screen core support is pushed onto the positioning welding device, the extension rail extends. When the welded screen core support moves onto the finished product recycling device, the extension rail retracts.

[0017] In one possible implementation, the positioning welding device includes:

[0018] The base frame is located on the side of the feeding device;

[0019] The base is connected to the upper end of the base frame;

[0020] The first support is fixedly connected to the upper end of the base;

[0021] A driving device, connected to the upper end of the base and having a moving end that has a degree of freedom to move along the axis parallel to the screen core support;

[0022] The second support is connected to the moving end of the drive device. With the help of the drive device, it can move along the axis parallel to the screen core support to adjust the distance between it and the first support. The inner sidewalls of the first support and the second support that are close to each other are respectively connected with end plates for welding to the screen core support.

[0023] A positioning component is connected to the upper end of the base and located between the first support and the second support. The positioning component is used to support the screen core support pulled out from the feeding device. The driving device drives the second support to move so that the two end plates respectively abut against the two ends of the screen core support to form a clamping fixation of the screen core support.

[0024] In one possible implementation, a cycloidal pinwheel reducer is connected to the inner wall of the first support near the second support. A servo motor is connected to the side of the first support away from the cycloidal pinwheel reducer. The power output end of the servo motor is powered by the input end of the cycloidal pinwheel reducer and is used to drive the cycloidal pinwheel reducer to rotate. The output end of the cycloidal pinwheel reducer is used to connect to the end plate. A bearing seat is connected to the inner wall of the second support near the first support. The bearing seat is connected to another end plate, and the end plate can rotate circumferentially by means of the bearing seat. After the screen core support abuts against the end plates at both ends, it can rotate circumferentially by means of the servo motor.

[0025] In one possible implementation, the positioning component includes:

[0026] A telescopic cylinder is connected to the upper end of the base and has a vertical extension / retraction degree of freedom at the upper end;

[0027] A support base is connected to the upper end of the telescopic cylinder and can be raised and lowered by means of the telescopic cylinder. The support base is suitable for supporting the screen core support. When the screen core support rotates in the circumferential direction, the telescopic cylinder retracts.

[0028] An electromagnet is connected to the support base, and the electromagnet is used to magnetically attract and limit the support of the screen core.

[0029] In one possible implementation, the finished product recycling device includes:

[0030] A recycling track is connected to the middle of the frame and located below the storage area. One end of the recycling track is arc-shaped and extends out of one side of the frame. The recycling track is suitable for storing welded screen core supports and the upper end forms the finished product area.

[0031] A flap assembly is connected to the cylinder. When the cylinder retracts, it simultaneously drives the flap assembly to rotate, so that the flap assembly moves the screen core support that has been welded on the positioning welding device and guides the screen core support to move onto the recycling track.

[0032] In one possible implementation, the finished product recycling device further includes:

[0033] The cylinder assembly is connected to the frame.

[0034] A lever, connected to the top of the cylinder assembly, is used to move the screen core support toward the inner side of the frame. The flip plate assembly and the cylinder assembly operate alternately.

[0035] In one possible implementation, the flip-up assembly includes:

[0036] A connecting rod, one end of which is connected to the end of the extended track away from the feeding track;

[0037] The unloading flap is hinged at its lower end to the positioning welding device and at its middle part to the other end of the connecting rod. The unloading flap is linked with the connecting rod and is positioned below the screen core support on the positioning welding device. When the cylinder retracts, it pulls the connecting rod to move, and the connecting rod pulls the unloading flap to rotate. The unloading flap is used to move the screen core support off the positioning welding device, so that the screen core support is detached from the positioning welding device and rolls on the unloading flap onto the recycling track.

[0038] The beneficial effects of the vibrating screen core support welding fixture provided by the present invention are as follows: Compared with the prior art, the vibrating screen core support welding fixture of the present invention includes a feeding device, a positioning welding device, and a finished product recovery device. The feeding device has a storage area for placing the screen core supports to be welded, and the feeding device has the freedom to move the screen core supports one by one toward one side. The positioning welding device is located on one side of the feeding device in the direction of screen core support movement. The two end plates to be welded to the screen core supports are respectively connected to the positioning welding device. The positioning welding device is adapted to fix the screen core supports and the two end plates. The feeding device is used to move the screen core supports one by one to the positioning welding device. The finished product recovery device is connected to the feeding device and has a finished product area adapted to store the welded screen core supports. The finished product recovery device is adapted to receive the welded screen core supports and guide them to the finished product area. This solves the technical problems of inconvenient operation and low welding efficiency in welding the screen core supports and end plates of the vibrating screen. It has the technical effects of being able to meet the welding requirements of the vibrating screen core supports, accurate welding positioning, simple structure, low cost, and high production efficiency. Attached Figure Description

[0039] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0040] Figure 1 This is a schematic diagram of the structure of a vibrating screen core support welding fixture provided in an embodiment of the present invention;

[0041] Figure 2 This is a front view of a vibrating screen core support welding fixture provided in an embodiment of the present invention;

[0042] Figure 3 A side view of a vibrating screen core support welding fixture provided in an embodiment of the present invention;

[0043] Figure 4 This is a top view of a vibrating screen core support welding fixture provided in an embodiment of the present invention;

[0044] Figure 5 This is a schematic diagram of the feeding device structure of a vibrating screen core support welding fixture provided in an embodiment of the present invention;

[0045] Figure 6 for Figure 5 Enlarged view of point A in the image;

[0046] Figure 7 for Figure 5 A schematic diagram of the structure of the cylinder-driven adjusting baffle and the limit adjusting device in the middle;

[0047] Figure 8 This is a schematic diagram of the positioning and welding device structure of a vibrating screen core support welding fixture provided in an embodiment of the present invention;

[0048] Figure 9 for Figure 8 A schematic diagram of the structure of the first support and positioning component;

[0049] Figure 10 for Figure 8 A schematic diagram of the drive unit and the second support structure;

[0050] Figure 11 This is a schematic diagram of another perspective of the welding fixture for supporting the core of a vibrating screen provided in an embodiment of the present invention;

[0051] Figure 12 for Figure 11 Enlarged view of point B in the image;

[0052] Figure 13This is a schematic diagram of the flap assembly and its connection of a finished product recycling device for a vibrating screen core support welding fixture provided in an embodiment of the present invention.

[0053] Explanation of reference numerals in the attached figures:

[0054] 1. Feeding device; 11. Frame; 12. Feeding track; 13. End baffle; 14. Cylinder-driven adjusting baffle; 141. Track; 142. First slider; 143. Baffle; 144. Pushing cylinder; 15. Feeding opening and closing device; 151. Corner cylinder; 152. Actuating plate; 16. Limit adjusting device; 17. Extended track; 18. Cylinder;

[0055] 2. Positioning and welding device; 21. Base frame; 22. Base; 23. First support; 24. Drive device; 241. Vertical plate; 242. Base plate; 243. Slide rail; 244. Second slider; 245. Lead screw; 246. First servo motor; 25. Second support; 26. Positioning assembly; 261. Telescopic cylinder; 262. Support base; 263. Electromagnet; 264. Round tube; 27. Cycloidal pinwheel reducer; 28. Second servo motor; 29. ​​Bearing seat; 210. Limiting component;

[0056] 3. Finished product recycling device; 31. Recycling track; 32. Flip plate assembly; 321. Connecting rod; 322. Unloading flip plate; 33. Cylinder assembly; 34. Paddle plate;

[0057] 4. Screen core support;

[0058] 5. End plate. Detailed Implementation

[0059] To make the technical problems to be solved, the technical solutions, and the beneficial effects of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0060] Please refer to the following: Figures 1 to 13The present invention provides a welding fixture for a vibrating screen core support. The vibrating screen core support welding fixture includes a feeding device 1, a positioning welding device 2, and a finished product recovery device 3. The feeding device 1 has a storage area for placing the screen core supports 4 to be welded, and the feeding device 1 has the freedom to move the screen core supports 4 one by one toward one side. The positioning welding device 2 is located on one side of the feeding device 1 in the direction of the screen core support 4 being moved. Two end plates 5 to be welded to the screen core support 4 are respectively connected to the positioning welding device 2. The positioning welding device 2 is adapted to fix the screen core support 4 and the two end plates 5. The feeding device 1 is used to move the screen core supports 4 one by one to the positioning welding device 2. The finished product recovery device 3 is connected to the feeding device 1 and has a finished product area adapted to store the welded screen core supports 4. The finished product recovery device 3 is adapted to receive the welded screen core supports 4 and guide them to the finished product area.

[0061] This invention provides a welding fixture for a vibrating screen core support. Compared with the prior art, by setting up a feeding device 1, a positioning welding device 2, and a finished product recycling device 3, the screen core support 4 can be moved sequentially, realizing continuous operation of feeding, welding and fixing, and recycling of the screen core support 4. It is convenient for the welding robot to combine and weld the screen core support 4 and the two end plates 5. After welding, the two end plates 5 are fixed at both ends of the screen core support 4 to form a whole. This invention solves the technical problems of inconvenient operation and low welding efficiency in welding the screen core support 4 and the end plates 5 of the vibrating screen. This invention can realize automated operation, facilitate welding, and has the technical effects of meeting the welding requirements of the vibrating screen core support 4, accurate welding positioning, simple structure, low cost, and high production efficiency.

[0062] In some embodiments, please refer to Figures 1 to 13The feeding device 1 includes a frame 11, a feeding track 12, an end baffle 13, a cylinder-driven adjusting baffle 14, and a feeding opening and closing device 15. The feeding track 12 is connected to the upper end of the frame 11, is inclined, and the height of one end near the positioning welding device 2 is lower than the height of the other end. The upper end of the feeding track 12 forms a storage area for stacking screen core supports 4. The screen core supports 4 located in the storage area have a degree of freedom to roll toward the positioning welding device 2. The end baffle 13 is fixedly connected to one end of the frame 11 and is used to restrict the screen core supports located on the feeding track 12. One end of the support 4 moves along its axial direction; the cylinder-driven adjusting baffle 14 is connected to the other end of the frame 11 and has the freedom to move along the axial direction of the screen core support 4. The cylinder-driven adjusting baffle 14 is used to push the other end of the screen core support 4 located on the feeding track 12 to move along its axial direction, so that the screen core support 4 is restricted between the end baffle 13 and the cylinder-driven adjusting baffle 14; the feeding opening and closing device 15 is connected to the upper end of the frame 11 and is set near the positioning welding device 2, and is used to move the screen core supports 4 near the positioning welding device 2 one by one towards the positioning welding device 2. In this embodiment, the frame 11 has a frame structure, and there are two feeding tracks 12 that are spaced apart. The length direction of the tracks is set at an acute angle with the width direction (horizontal plane) of the frame 11, that is, the feeding tracks 12 are set at an incline. The screen core supports 4 located at the upper end of the tracks can roll towards the positioning welding device 2 by their own weight. Multiple screen core supports 4 are arranged side by side at the upper end of the two feeding tracks 12. In this embodiment, the screen core support 4 is a tubular component, such as a round tube, with a hollow interior. Adjacent screen core supports 4 are in contact or abut against each other. When a sand core support near the positioning welding device 2 moves onto the positioning welding device 2, multiple screen core supports 4 can automatically roll towards the side closer to the positioning welding device 2 due to their own weight. When the screen core support 4 reaches the end of the feeding track 12, it can be stopped, that is, the screen core support 4 will not automatically slide off the feeding track 12.

[0063] The end baffle 13 is located at one end of the frame 11 along its length, serving to limit one end of the screen core support 4. By using a cylinder to drive the adjusting baffle 14 to push the screen core support 4, multiple screen core supports 4 can be aligned flush at both ends. This allows the multiple screen core supports 4 to move one by one onto the positioning and welding device 2, improving the accuracy of movement and facilitating the positioning and welding device 2 to properly receive the screen core supports 4 output from the feeding track 12. It is important to note that the cylinder-driven adjusting baffle 14 only pushes and aligns the multiple screen core supports 4; it does not fix the screen core supports 4 to the feeding track 12. By adjusting the position of the cylinder-driven adjusting baffle 14, it is possible to accommodate the pushing and welding of screen core supports 4 of different lengths. The cylinder-driven adjusting baffle 14 includes two tracks 141, two first sliders 142, a baffle 143, and a pushing cylinder 144. The two tracks 141 are arranged side by side on the upper end of the frame 11, and their pushing and extending direction is along the length of the frame 11. The two first sliders 142 are respectively slidably connected to the two tracks 141. The baffle 143 is located on the upper end of the two first sliders 142, and the cross-section of the baffle 143 is L-shaped. One end of the pushing cylinder 144 is connected to the upper end of the frame 11, and the other end is connected to the baffle 143. It can push the baffle 143 to move, so that the baffle 143 can push multiple screen core supports 4 at the same time, so that the screen core supports 4 are limited between the end baffle 13 and the baffle 143. After the baffle 143 pushes multiple screen core supports 4, it can retract to release the limitation on the screen core supports 4. At this time, the screen core supports 4 should be able to roll automatically on the feeding track 12. A baffle 143 is connected to one end of the feeding track 12 away from the positioning welding device 2. The baffle 143 serves to block and limit the screen core support 4 to prevent the screen core support 4 from sliding off the feeding track 12.

[0064] The feeding opening and closing device 15 includes a rotary cylinder 151 and a toggle plate 152. The toggle plate 152 is connected to the rotating end of the rotary cylinder 151 and rotates as the rotary cylinder 151 swings. The toggle plate 152 acts as a toggle for the screen core support 4 towards the positioning welding device 2. The positioning welding device 2 can be set at a position diagonally below the feeding opening and closing device 15, and its height is higher than that of the finished product recycling device 3, so that the welded screen core support 4 can be guided onto the finished product recycling device 3. The toggle plate 152 is right-angled and has two toggle forks, one vertical and one horizontal, which can block and limit the screen core support 4 located on the feeding track 12. When the corner cylinder 151 rotates, the actuating plate 152 rotates towards the positioning welding device 2. At this time, the actuating plate 152 can move one of the screen core supports 4 closest to the positioning welding device 2 onto the device 2. This movement also acts as a blocking and limiting mechanism for the second screen core support 4. Each actuation can only move one screen core support 4. After moving the first screen core support 4, rotating the corner cylinder 151 in the opposite direction will block and limit the movement of the second screen core support 4. By properly controlling the operation of the corner cylinder 151, the operation of the positioning welding device 2 and the welding speed can be matched, achieving automatic feeding of the screen core supports 4.

[0065] In some embodiments, please refer to Figures 1 to 13 The feeding device 1 also includes a limit adjustment device 16, which is connected to the upper end of the frame 11 and is suitable for limiting the position of the cylinder-driven adjustment baffle 14. The limit adjustment device 16 is used in conjunction with the pushing cylinder and includes multiple sets of proximity switches spaced apart along the movement direction of the baffle. By setting the proximity switch at the position where the baffle needs to stop, and the proximity switch being electrically connected to the cylinder solenoid valve, the operation of the pushing cylinder can be reasonably controlled by transmitting a signal to the cylinder solenoid valve, thereby enabling the baffle to be controlled at a reasonable operating position, thus realizing the automatic adjustment of the distance between the baffle and the end baffle 13.

[0066] In some embodiments, please refer to Figures 1 to 13An extended track 17 is telescopically connected to one end of the feeding track 12 near the positioning welding device 2. The length of the extended track 17 is along the length of the feeding track 12. A cylinder 18 is connected to the side of the extended track 17, which is adapted to drive the extended track 17 to extend and retract within the feeding track 12 to adjust the extension length of the extended track 17. When the screen core support 4 is moved towards the positioning welding device 2, the extended track 17 extends; when the welded screen core support 4 moves towards the finished product recycling device 3, the extended track 17 retracts. In this invention, the movement of the screen core support 4 from the feeding track 12 to the positioning welding device 2 is called feeding, and the movement from the positioning welding device 2 to the finished product recycling device 3 is called unloading. By setting the extended track 17, it can extend during feeding and retract during unloading, and drive the finished product recycling device to recycle the welded screen core support 4, so that the finished product is recycled to the finished product recycling device 3. The setting of the extended track 17 does not affect the feeding and unloading operations of the screen core support 4. One end of the cylinder 18 is connected to the side of the feeding track 12, and the other end is connected to the side of the extension track 17, which is used to push the extension track 17 to extend and retract.

[0067] In some embodiments, please refer to Figures 1 to 13The positioning welding device 2 includes a base frame 21, a base 22, a first support 23, a drive device 24, a second support 25, and a positioning assembly 26. The base frame 21 is located on the side of the feeding device 1. The base 22 is connected to the upper end of the base frame 21. The first support 23 is fixedly connected to the upper end of the base 22. The drive device 24 is connected to the upper end of the base 22 and has a movable end that has a degree of freedom to move along the axis parallel to the screen core support 4. The second support 25 is connected to the movable end of the drive device 24, and can move along the axis parallel to the screen core support 4 by means of the drive device 24. The axial movement adjusts the distance between the support and the first support 23. The inner walls of the first support 23 and the second support 25, which are close to each other, are respectively connected to end plates 5 for welding to the screen core support 4. A positioning assembly 26 is connected to the upper end of the base 22 and located between the first support 23 and the second support 25. The positioning assembly 26 supports the screen core support 4 pulled out from the feeding device 1. The driving device 24 drives the second support 25 to move, so that the two end plates 5 respectively abut against both ends of the screen core support 4, forming a clamping fixation of the screen core support 4. In this embodiment, the height of the base frame 21 is adjustable to suit the adjustment of the height of the screen core support 4 received from the feeding device 1. The position of the first support 23 remains stationary, while the position of the second support 25 can be moved and adjusted. The driving device 24 can drive the second support 25 to move, thereby adjusting the distance between it and the first support 23, so as to clamp and fix the screen core support 4, facilitating welding operations. The screen core support 4, propelled by a fork from the feeding track 12, falls onto the positioning assembly 26. Moving the second support 25 then clamps the screen core support 4, securing it to the two end plates 5, which facilitates welding. The screen core support 4, once on the positioning assembly 26, is less likely to slip off. Clamping the screen core support 4 allows the positioning assembly 26 to move away from it, further facilitating welding. The first support 23 and the second support 25 are symmetrically arranged. The side connected to the end plates 5 is a vertical plate, and the end plates 5 are connected to this vertical plate. Movement of the vertical plate allows the end plates 5 to gradually approach and abut against the screen core support 4. By controlling the movement distance of the drive device 24, the clamping degree of the screen core support 4 can be controlled.

[0068] Specifically, the drive device 24 is a ball screw driven device, including a vertical plate 241, a base plate 242, a slide rail 243, a second slider 244, a lead screw 245, a lead screw seat, and a first servo motor 246. The vertical plate 241 is connected to the upper end of the second slider 244, and is vertically arranged to connect to the end plate 5. The slide rail 243 is set on the base plate 242, and the second slider 244 is slidably connected to the slide rail 243. The lead screw seat and the lead screw 245 are threaded together, and the lead screw seat is connected to the second slider 244. The rotation of the lead screw 245 drives the second slider 244 to move, thereby driving the vertical plate 241 to move. The power output end of the first servo motor 246 is connected to one end of the lead screw 245 and is used to drive the lead screw 245 to rotate. By reasonably controlling the rotation of the first servo motor 246, the moving distance of the vertical plate 241 can be controlled, thereby realizing the pushing and clamping of the screen core support 4.

[0069] To achieve circumferential rotation of the screen core support 4, it can be used in conjunction with a welding robot (existing technology for welding operations) to perform circumferential welding. In some embodiments, please refer to... Figures 1 to 13 A cycloidal pinwheel reducer 27 is connected to the inner wall of the first support 23 near the second support 25. A second servo motor 28 is connected to the side of the first support 23 away from the cycloidal pinwheel reducer 27. The power output end of the second servo motor 28 is connected to the input end of the cycloidal pinwheel reducer 27 and is used to drive the cycloidal pinwheel reducer 27 to rotate. The output end of the cycloidal pinwheel reducer 27 is used to connect to the end plate 5. A bearing seat 29 is connected to the inner wall of the second support 25 near the first support 23. The bearing seat 29 is connected to another end plate 5, and the end plate 5 can rotate circumferentially with the help of the bearing seat 29. After the screen core support 4 abuts against the end plates 5 at both ends, it can rotate circumferentially with the help of the second servo motor 28. The above-mentioned reducer is existing technology and can realize the circumferential rotation of the screen core support 4, thereby facilitating welding operations. The second servo motor 28 can drive the reducer to run, thereby driving the screen core support 4 and the two ends to rotate simultaneously. It can cooperate with the welding robot for welding, improving the efficiency of welding operations. In this embodiment, the power output end of the second servo motor 28 can pass through the first support 23. The height of the reducer is the same as the height of the bearing seat 29, which makes the screen core support 4 horizontal, facilitating welding with the end plate 5. One end plate 5 rotates on the reducer, and the other end plate 5 rotates on the bearing seat 29. Driven by the second servo motor 28, the screen core support 4 and the end plate 5 can rotate simultaneously, thus enabling welding to be performed in conjunction with the welding robot. At this time, welding can be achieved without the welding robot rotating around the circumference of the screen core support 4, improving welding efficiency and quality.

[0070] In some embodiments, please refer to Figures 1 to 13The positioning component 26 includes a telescopic cylinder 261, a support base 262, and an electromagnet 263. The telescopic cylinder 261 is connected to the upper end of the base 22 and has a vertical extension / retraction degree of freedom at the upper end. The support base 262 is connected to the upper end of the telescopic cylinder 261 and can be raised and lowered with the help of the telescopic cylinder 261. The support base 262 is suitable for supporting the screen core support 4. When the screen core support 4 rotates circumferentially, the telescopic cylinder 261 retracts. The electromagnet 263 is connected to the support base 262 and is used to magnetically attract and limit the screen core support 4. The telescopic cylinder 261 can be extended and retracted. In this embodiment, two positioning components 26 are arranged at intervals, both of which can support the screen core support 4 at the same time. At the same time, the screen core support 4 can rotate circumferentially on the positioning component 26. The screen core support 4 pulled out from the feeding track 12 falls onto the upper end of the support base 262. At this time, the support base 262 can limit the screen core support 4 and prevent the screen core support 4 from slipping off or leaving the support base 262 again. In this embodiment, the support base 262 is U-shaped, allowing the screen core support 4 to be inserted into it, thus limiting the position of the screen core support 4. By controlling the extension and retraction of the telescopic cylinder 261, the height of the support base 262 can be adjusted, thereby adjusting the support height of the screen core support 4. By setting an electromagnet 263 on the side of the support base 262, since the screen core support 4 is an iron component, it can be magnetically attracted. Therefore, by setting the electromagnet 263, when energized, it can magnetically attract and position the screen core support 4 that falls onto the support base 262, further restricting the movement of the screen core support 4 and preventing it from jumping off the support base 262.

[0071] Preferably, two circular tubes 264 are spaced apart at the upper end of the support base 262, and a space for accommodating the screen core support 4 is formed between the two circular tubes 264. The screen core support 4 can rotate circumferentially between the two circular tubes 264. The contact form between the two circular tubes 264 and the screen core support 4 is a line contact, which can reduce the friction between the two and make the screen core support 4 easy to rotate circumferentially.

[0072] A limiting member 210 for supporting the end plate 5 is also provided near the first support 23 and the second support 25. This limiting member 210 can support the end plate 5 and effectively prevent the end plate 5 from falling off the first support 23 or the second support 25. Its structure is similar to that of the positioning component 26 mentioned above. It is used to support the end plate 5. When the two end plates 5 and the screen core support 4 are clamped and fixed, the limiting member 210 and the positioning component 26 can be retracted, so that they do not contact the end plates 5 and the screen core support 4, which is conducive to the circumferential rotation of the end plates 5 and the screen core support 4.

[0073] In some embodiments, please refer to Figures 1 to 13The finished product recycling device 3 includes a recycling track 31 and a flip-plate assembly 32. The recycling track 31 is connected to the middle of the frame 11 and located below the storage area. One end of the recycling track 31 is arc-shaped and extends out of one side of the frame 11. The recycling track 31 is suitable for storing the welded screen core support 4, and the upper end forms a finished product area. The flip-plate assembly 32 is connected to a cylinder 18. When the cylinder 18 retracts, it simultaneously drives the flip-plate assembly 32 to rotate, so that the flip-plate assembly 32 moves the welded screen core support 4 located on the positioning welding device 2 and guides the screen core support 4 to move onto the recycling track 31. Figure 5 As shown, the recycling track 31 consists of three sets arranged in parallel. Its upper end can simultaneously support and store multiple finished screen core supports 4. It is located below the storage area, in the middle of the frame 11. Specifically, the flip-plate assembly 32 is connected to the extended track 17, and the cylinder 18 controls the extension and retraction of the extended track 17, thereby controlling the rotation of the flip-plate assembly 32 and the movement of the finished screen core supports 4. In this embodiment, the extended end of the recycling track 31 is set in an arc shape, which prevents the finished screen core supports 4 from rolling off the recycling track 31 and also guides the rolling of the finished screen core supports 4. That is, when a batch of screen core supports 4 falls onto the arc-shaped structure, they can automatically roll towards the inside of the frame 11. A limiting member 210 is also provided at the inner end of the recycling track 31 to restrict the finished screen core supports 4 from rolling off the recycling track 31.

[0074] In some embodiments, please refer to Figures 1 to 13 The finished product recycling device 3 also includes a cylinder assembly 33 and a deflector plate 34; the cylinder assembly 33 is connected to the frame 11; the deflector plate 34 is connected to the push end of the cylinder assembly 33, and the deflector plate 34 is used to move the screen core support 4 towards the inside of the frame 11. The flip plate assembly 32 and the cylinder assembly 33 operate alternately. One end of the cylinder assembly 33 is connected to the frame 11 and the other end is connected to the deflector plate 34. Through the extension and retraction of the cylinder assembly 33, the deflector plate 34 can be pushed to move, thereby enabling the deflector plate 34 to move the finished product screen core support 4 located on the recycling track 31 towards the inside of the frame 11.

[0075] Preferably, the lower end of the lever 34 is hinged to the frame 11, and one end of the cylinder assembly 33 is hinged to the middle of the lever 34. By pushing and extending the cylinder assembly 33, the lever 34 can rotate, thereby moving the finished screen support 4 on the recycling track 31. During unloading, the cylinder assembly 33 is not activated, and the lever 34 is horizontal, not affecting the unloading operation. After unloading, if it is necessary to move the finished screen support 4 inwards towards the frame 11, the lever 34 can be used to move the outermost finished screen support 4.

[0076] In some embodiments, please refer to Figures 1 to 13The flap assembly 32 includes a connecting rod 321 and a discharge flap 322. One end of the connecting rod 321 is connected to the end of the extended track 17 away from the loading track 12. The lower end of the discharge flap 322 is hinged to the positioning welding device 2, and the middle part is hinged to the other end of the connecting rod 321. The discharge flap 322 is linked with the connecting rod 321. The discharge flap 322 is placed below the screen core support 4 on the positioning welding device 2. When the cylinder 18 retracts, it pulls the connecting rod 321 to move, and the connecting rod 321 pulls the discharge flap 322 to rotate. The discharge flap 322 is used to push the screen core support 4 off the positioning welding device 2, so that the screen core support 4 is disengaged from the positioning welding device 2 and rolls on the discharge flap 322 onto the recycling track 31. Figure 13 As shown, when unloading is required, the cylinder 18 retracts to pull the connecting rod 321, which in turn pulls the unloading flap 322 to rotate. The upper end of the unloading flap 322 can then move the finished screen core support 4. This allows the second support 25 to release its clamping action on the screen core support 4, enabling the screen core support 4 to be moved by the unloading flap 322. After being moved, the screen core support 4 falls onto the unloading flap 322, passes through the area between the two connecting rods 321, and finally falls onto the recovery track 31. Since there are two extended tracks 17, two cylinders 18 and two connecting rods 321 are also correspondingly provided and operate simultaneously. One end of each connecting rod 321 is hinged to the middle of the unloading flap 322. By pulling the unloading flap 322, it can be rotated, thus moving the finished screen core support 4 located on the positioning welding device 2. The connecting rod 321 is U-shaped, and the unloading flap 322 is π-shaped. Once the recycling track 31 is full of screen core supports 4, a forklift can be used to remove and empty it for reuse.

[0077] The specific method of using this invention is as follows: Step 1: Assemble the feeding device 1, the assembly and welding device, and the finished product recycling device 3 as shown in the figure. Step 2: Adjust the adjusting cylinder of the feeding device 1 to drive the adjusting baffle 14 and the limit adjusting device 16 according to the length of the vibrating screen core support 4 to be welded. Step 3: Adjust the corner cylinder 151 of the feeding opening and closing device 15 to the initial state, and place the round tube of the vibrating screen core support 4 on the feeding track 12. Step 4: Set the value in the control program according to the required length of the vibrating screen core support 4. Step 5: Install the end plate 5 of the vibrating screen core support 4 on the first support 23 and the second support 25 respectively, and extend and position each telescopic cylinder 261 of the positioning component 26. Step 6: The cylinder 18 of the feeding track 12 extends, driving the extension track 17 to extend. The feeding opening and closing device 15 is activated, pushing the bottom vibrating screen core support 4 round tube out of the feeding track 12 and onto the positioning component 26. The electromagnet 263 is energized and attracted. Step 7: The drive device 24 runs, adjusting the position of the second support 25 to fix the end plate 5 and the screen core support 4. Step 8: The welding robot is used to spot weld the end plate 5 and the screen core support 4. Step 9: The telescopic cylinder 261 of the positioning component 26 retracts, and the reducer on the first support 23 rotates in conjunction with the welding robot to make the end plate 5 and the screen core support 4 rotate circumferentially. The welding robot is then used for welding. Step 10: The telescopic cylinder 261 of the positioning component 26 extends and supports the screen core support 4, moving the drive device 24 away from the screen core support 4. The extended track 17 cylinder 18 of the feeding track 12 retracts, causing the unloading flap 322 to lift, pushing the welded screen core support 4 into the recycling track 31 of the finished product recycling device 3. Step 11: The cylinder assembly 33 of the finished product recycling device 3 operates, causing the pusher plate 34 to push the welded screen core support 4 behind the recycling track 31 (in the direction extending inward to the frame 11). The above are the welding operation steps for one screen core support 4 and two end plates 5. Repeat this set of steps to weld the required number of screen core supports 4.

[0078] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A welding fixture for supporting the core of a vibrating screen, characterized in that, include: The feeding device has a storage area for placing the screen core supports to be welded, and the feeding device has the freedom to move the screen core supports one by one toward one side. A positioning welding device is located on one side of the screen core support of the feeding device in the direction of movement. The two end plates to be welded to the screen core support are respectively connected to the positioning welding device. The positioning welding device is suitable for fixing the screen core support and the two end plates. The feeding device is used to move the screen core support to the positioning welding device one by one. A finished product recycling device is connected to the feeding device and has a finished product area suitable for storing welded screen core supports. The finished product recycling device is adapted to receive the welded screen core supports and guide them to the finished product area. The feeding device includes: Frame; The feeding track is connected to the upper end of the frame and is set at an angle with the height of one end closer to the positioning and welding device being lower than the height of the other end. The upper end of the feeding track forms a storage area for stacking screen core supports. The screen core supports located in the storage area have a degree of freedom to roll toward the positioning and welding device. An end baffle is fixedly connected to one end of the frame, and the end baffle is used to restrict the axial movement of one end of the screen core support located on the feeding track. A cylinder-driven adjusting baffle is connected to the other end of the frame and has a degree of freedom to move along the axial direction of the screen core support. The cylinder-driven adjusting baffle is used to push the other end of the screen core support located on the feeding track to move along its axial direction, so that the screen core support is restricted between the end baffle and the cylinder-driven adjusting baffle. A feeding opening and closing device is connected to the upper end of the frame and is located near the positioning and welding device. It is used to move the screen core support near the positioning and welding device one by one toward the positioning and welding device. An extension track is telescopically inserted at one end of the feeding track near the positioning welding device. The extension track is along the length of the feeding track. A cylinder is connected to the side of the extension track. The cylinder is adapted to drive the extension track to extend and retract within the feeding track to adjust the extension length of the extension track. When the screen core support is pushed onto the positioning welding device, the extension track extends. When the welded screen core support moves onto the finished product recycling device, the extension track retracts. The finished product recycling device includes: A recycling track is connected to the middle of the frame and located below the storage area. One end of the recycling track is arc-shaped and extends out of one side of the frame. The recycling track is suitable for storing welded screen core supports and the upper end forms the finished product area. A flip-plate assembly is connected to the cylinder. When the cylinder retracts, it simultaneously drives the flip-plate assembly to rotate, so that the flip-plate assembly moves the screen core support that has been welded on the positioning welding device and guides the screen core support to move onto the recycling track. The flip-plate assembly is connected to the extension track, and the cylinder controls the extension and retraction of the extension track, thereby controlling the rotation of the flip-plate assembly and the movement of the finished screen core support. The feeding device further includes: A limit adjustment device is connected to the upper end of the frame and is adapted to limit the position of the cylinder-driven adjustment baffle. The positioning welding device includes: The base frame is located on the side of the feeding device; The base is connected to the upper end of the base frame; The first support is fixedly connected to the upper end of the base; A driving device, connected to the upper end of the base and having a moving end that has a degree of freedom to move along the axis parallel to the screen core support; The second support is connected to the moving end of the drive device. With the help of the drive device, it can move along the axis parallel to the screen core support to adjust the distance between it and the first support. The inner sidewalls of the first support and the second support that are close to each other are respectively connected with end plates for welding to the screen core support. A positioning component is connected to the upper end of the base and located between the first support and the second support. The positioning component is used to support the screen core support pulled out from the feeding device. The driving device drives the second support to move so that the two end plates respectively abut against the two ends of the screen core support to form a clamping fixation of the screen core support. A cycloidal pinwheel reducer is connected to the inner wall of the first support near the second support. A servo motor is connected to the side of the first support away from the cycloidal pinwheel reducer. The power output end of the servo motor is connected to the input end of the cycloidal pinwheel reducer and is used to drive the cycloidal pinwheel reducer to rotate. The output end of the cycloidal pinwheel reducer is used to connect to the end plate. A bearing seat is connected to the inner wall of the second support near the first support. The bearing seat is connected to another end plate, and the end plate can rotate circumferentially with the help of the bearing seat. The screen core support can rotate circumferentially with the help of the servo motor after it abuts against the end plates at both ends. The positioning component includes: A telescopic cylinder is connected to the upper end of the base and has a vertical extension / retraction degree of freedom at the upper end; A support base is connected to the upper end of the telescopic cylinder and can be raised and lowered by means of the telescopic cylinder. The support base is suitable for supporting the screen core support. When the screen core support rotates in the circumferential direction, the telescopic cylinder retracts. An electromagnet is connected to the support base, and the electromagnet is used to magnetically attract and limit the position of the screen core support; Two circular tubes are spaced apart at the upper end of the support base, forming a space between the two circular tubes to accommodate the screen core support, which can rotate circumferentially between the two circular tubes.

2. The vibrating screen core support welding fixture as described in claim 1, characterized in that, The finished product recycling device also includes: The cylinder assembly is connected to the frame. A lever, connected to the top of the cylinder assembly, is used to move the screen core support toward the inner side of the frame. The flip plate assembly and the cylinder assembly operate alternately.

3. The vibrating screen core support welding fixture as described in claim 1, characterized in that, The flip-up assembly includes: A connecting rod, one end of which is connected to the end of the extended track away from the feeding track; The unloading flap is hinged at its lower end to the positioning welding device and at its middle part to the other end of the connecting rod. The unloading flap is linked with the connecting rod and is positioned below the screen core support on the positioning welding device. When the cylinder retracts, it pulls the connecting rod to move, and the connecting rod pulls the unloading flap to rotate. The unloading flap is used to move the screen core support off the positioning welding device, so that the screen core support is detached from the positioning welding device and rolls on the unloading flap onto the recycling track.

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