A laser-positionable magazine positioning tool
By using the laser sensor and fine-tuning mechanism of the laser positioning fixture, the problem of misalignment of the material box caused by the shift of the center of gravity on the automatic transfer line is solved, realizing high-precision positioning and fine-tuning of the material box, and improving the stability of production and product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO FUMIN STORAGE EQUIP MFG CO LTD
- Filing Date
- 2025-08-27
- Publication Date
- 2026-06-23
AI Technical Summary
When transporting material boxes on an automated transfer line, the shift in the center of gravity causes the material boxes to tilt or sway, making it impossible to align them precisely. This affects the subsequent gripping by the robotic arm and the continuity of production, and may even lead to component damage and increased production costs.
A laser-positionable bin positioning fixture is adopted, which uses a laser sensor group and a fine-tuning mechanism to achieve high-precision positioning and fine-tuning of the bin. It includes left and right lifting mechanisms, fine-tuning rotary arms and Hall effect sensing units to ensure that the bin remains horizontally aligned during the conveying process.
It achieves high-precision automated positioning of the material bins, improves production stability and product quality, reduces equipment collisions and maintenance costs, and ensures production continuity and product consistency.
Smart Images
Figure CN224393841U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a material box positioning fixture. Background Technology
[0002] Automated transfer lines like the one described in patent number CN202322155476.X may experience tilting or wobbling of the material boxes during transport due to shifts in the center of gravity. While the conveyor system can transport the boxes along a pre-set track, it struggles to adjust for changes in the center of gravity of each box in real time. This results in misalignment, where the boxes fail to precisely align with the pre-set positioning marks upon reaching their designated positions.
[0003] When the robotic arm picks up the bin, it may be misaligned and the bin may be picked up crookedly. The crooked bin may collide with other equipment during transportation, resulting in damage to components or deformation of the bin.
[0004] This not only wastes production materials but also increases equipment maintenance costs and downtime. Furthermore, misaligned material bins may not align accurately with the corresponding equipment in the next process, affecting production continuity and stability. For example, in assembly processes, misaligned material bins may prevent components from being installed correctly, thus reducing product quality and yield. Utility Model Content
[0005] To overcome the shortcomings of current automated production line robots that are prone to inaccurate positioning of material boxes when picking them up, this utility model provides a laser-positionable material box positioning fixture.
[0006] The technical solution of this utility model to solve its technical problem is: a laser-positionable bin positioning fixture, including a left base plate and a right base plate, with a channel provided between the left and right base plates. The left base plate has a left front support column and a left rear support column at the channel position. A left positioning frame is provided on the left side of the left base plate, and a left positioning plate is provided on the upper side of the left positioning frame. A front positioning frame is provided at the front section of the left base plate, and a front positioning plate is provided on the front positioning frame. The upper end of the front positioning plate is bent forward to form a guide edge. A left front Hall effect sensor unit is provided on one side of the front positioning frame. A left fine-tuning mechanism is provided on the front side of the left base plate, including a left fine-tuning stand, with a left fine-tuning cylinder at the upper end of the left fine-tuning stand. The movable end of the fine-tuning cylinder is a left fine-tuning arm positioned to the rear. The left fine-tuning arm can rotate 90 degrees to lift or lay flat. A friction block is provided on the head of the left fine-tuning arm. The rear section of the left base plate is provided with a left lifting mechanism. The left lifting mechanism includes a left lifting stand and a left lifting cylinder mounted on the left lifting stand. The movable end of the left lifting cylinder is provided with a lifting plate. A centering block is provided on one side of the lifting plate. A vertical frame with a centering groove is provided on one side of the left lifting stand. When the lifting plate is at its highest position, the centering block is inserted into the centering groove to complete the centering. Similarly, the right base plate is provided with a right positioning frame, a right front support column, a right rear support column, a right fine-tuning mechanism, and a right lifting mechanism.
[0007] The upper side of the left positioning frame is equipped with a laser sensor group facing the box channel. The laser sensor group includes several laser sensors, and the several laser sensors are arranged in a row on the same horizontal line. The sensing height of the laser sensor is the height of the upper edge of the material box when the left lifting mechanism and the right lifting mechanism lift it.
[0008] To prevent the lifting plate from sliding against the material box and affecting accuracy, a top head that matches the bottom surface of the material box is fixed at the upper end of the lifting plate.
[0009] To improve contact stability, the upper end of the top is rounded.
[0010] To further improve the friction of the contact surface, the top head is a rubber head.
[0011] To improve the accuracy of centering, the centering slot and centering block of the left lifting mechanism are provided in two sets, and are symmetrical from left to right.
[0012] An arrival sensing function is added, and a left rear Hall sensor unit is provided on one side of the left rear support column.
[0013] For ease of central control, a Hall effect sensor counter is also installed on the left bottom plate near the channel.
[0014] In use, the material box is placed on the conveyor belt by the loading robot. The four corners of the material box are located on the left front support column, left rear support column, right front support column, and right rear support column, respectively. The front side of the material box abuts against the front positioning plate to complete the initial positioning. Then, the left and right lifting mechanism lifts the material box, and then the left and right fine adjustment mechanism lifts the material box. The laser sensor on one side is triggered. When the left fine adjustment mechanism adjusts the cantilever to lift the material box to a certain height, all the laser sensor feedback is triggered, that is, the material box is horizontally aligned to the predetermined position. The left and right fine adjustment mechanism stops at this position, and then the unloading robot precisely clamps the material box to the working position to complete the entire positioning cycle.
[0015] The beneficial effects of this utility model are as follows: 1. It adopts a laser sensor, which has high-precision measurement capabilities and can accurately detect the position of the material box, realizing automated fine-tuning of the material box position, thereby improving the accuracy of subsequent processing and assembly processes. 2. The left and right fine-tuning mechanism uses a rotary arm type instead of a lifting type. During fine-tuning, the rotary arm generates a forward and upward resultant force on the material box. As the material box rises, the front part of the material box presses against the front positioning frame, achieving accurate front positioning of the material box and preventing forward and backward movement. 3. The laser sensor has strong anti-interference capabilities and can work stably in complex industrial environments. It is unaffected by factors such as light, dust, and smoke, and can accurately detect the position information of the material box. Even under harsh production conditions, it can ensure the normal operation of the visual positioning mode, providing a reliable position adjustment basis for the automated production line and ensuring the stability and consistency of product quality. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the material box of this utility model.
[0017] Figure 2 This is a schematic diagram of the present invention.
[0018] Figure 3 This is a schematic diagram illustrating the use of this utility model.
[0019] Figure 4 This is a schematic diagram of the present invention after being loaded into the material box.
[0020] Figure 5 This is a schematic diagram of the mechanism on the left bottom plate of this utility model.
[0021] Figure 6 This is a schematic diagram of the left fine-tuning mechanism of this utility model.
[0022] Figure 7 This is a schematic diagram of the left lifting mechanism of this utility model. Detailed Implementation
[0023] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.
[0024] Example 1
[0025] Combined with appendix Figures 1 to 7 A laser-positionable bin positioning fixture includes a left base plate 1 and a right base plate 2, with a channel between the left base plate 1 and the right base plate 2. The left base plate 1 has a left front support column 3 and a left rear support column 4 located at the channel position. A left positioning frame 5 is located on the left side of the left base plate 1, and a left positioning plate 6 is located on the upper side of the left positioning frame 5. A front positioning frame 7 is located at the front section of the left base plate 1, and a front positioning plate 8 is located on the front positioning frame 7. The upper end of the front positioning plate 8 is bent forward to form a guide edge 9. A left front Hall effect sensor unit 10 is located on one side of the front positioning frame 7. A left fine-tuning mechanism 11 is located on the front side of the left base plate 1. The left fine-tuning mechanism 11 includes a left fine-tuning stand 12, and a left fine-tuning cylinder 13 is located at the upper end of the left fine-tuning stand 12. The movable end of the left fine-tuning cylinder 13 is a left-facing, rearward-oriented... The left fine-tuning arm 14 can rotate 90 degrees to be raised or laid flat. A friction block 15 is provided on the head of the left fine-tuning arm 14. The rear section of the left base plate 1 is provided with a left lifting mechanism 16. The left lifting mechanism 16 includes a left lifting stand 17 and a left lifting cylinder 18 provided on the left lifting stand 17. The movable end of the left lifting cylinder 18 is provided with a lifting plate 19. A centering block 20 is provided on one side of the lifting plate 19. A vertical frame 22 with a centering groove block 21 is provided on one side of the left lifting stand 17. When the lifting plate 19 is at the top, the centering block 20 is inserted into the centering groove block 21 to complete the centering. Similarly, the right base plate 2 is symmetrically provided with a right positioning frame 23, a right front support column 24, a right rear support column 25, a right fine-tuning mechanism 26, and a right lifting mechanism 27 on the left base plate 1.
[0026] The upper side of the left positioning frame 5 is provided with a laser sensor group facing the box channel. The laser sensor group includes several laser sensors 28, and the several laser sensors 28 are arranged in a row on the same horizontal line. The sensing height of the laser sensor 28 is the height of the upper edge of the material box 29 when the left lifting mechanism 16 and the right lifting mechanism 27 lift it.
[0027] To prevent the lifting plate 19 from sliding against the material box 29 and affecting accuracy, a top head 30 matching the bottom surface of the material box is fixed at the upper end of the lifting plate 19.
[0028] To improve contact stability, the upper end of the top head 30 is rounded.
[0029] To further improve the friction of the contact surface, the top head 30 is a rubber head.
[0030] To improve the accuracy of centering, the centering slot 21 and centering block 20 of the left lifting mechanism 16 are provided in two sets and are symmetrical from left to right.
[0031] To add a positioning sensing function, a left rear Hall sensor unit 31 is provided on one side of the left rear support column 4.
[0032] For ease of overall control, a Hall effect sensor counter is also installed on the left bottom plate 1 near the box channel.
[0033] In this embodiment, the material box 29 is placed on the box channel by the loading robot. The four corners of the material box 29 are respectively located on the left front support column 3, the left rear support column 4, the right front support column 24, and the right rear support column 25. The front side of the material box 29 abuts against the front positioning plate 8 to complete the initial positioning. Then the left and right lifting mechanism 27 lifts, and then the left and right fine adjustment mechanism 26 lifts. The laser sensor 28 on one side is just triggered. When the left fine adjustment mechanism 11 adjusts the cantilever to lift the material box 29 to a certain height, the laser sensor 28 feedback is that all the materials box 29 has been triggered, that is, the material box 29 is horizontally aligned to the predetermined position. Then the left and right fine adjustment mechanism 26 stops at this position. Then the unloading robot performs precise clamping to the working position to complete the entire positioning cycle.
[0034] The beneficial effects of this utility model are as follows: 1. It adopts a laser sensor mode, which has high-precision measurement capabilities and can accurately detect the position of the material box, realizing automated fine-tuning of the material box position, thereby improving the accuracy of subsequent processing and assembly processes. 2. The left and right fine-tuning mechanism adopts a rotary arm type instead of a lifting type. During fine-tuning, the rotary arm will generate a forward and upward resultant force on the material box. As the material box rises, the front part of the material box presses against the front positioning frame 7, achieving accurate front positioning of the material box and preventing forward and backward movement. 3. The laser sensor has strong anti-interference capabilities and can work stably in complex industrial environments. It is not affected by factors such as light, dust, and smoke, and can accurately detect the position information of the material box. Even under harsh production conditions, it can ensure the normal operation of the visual positioning mode, providing a reliable position adjustment basis for the automated production line and ensuring the stability and consistency of product quality.
Claims
1. A laser-positionable bin positioning fixture, comprising a left base plate and a right base plate, wherein a guideway is provided between the left base plate and the right base plate, characterized in that: The left bottom plate is equipped with a left front support column and a left rear support column at the box passage position; a left positioning frame is provided on the left side of the left bottom plate, and a left positioning plate is provided on the upper side of the left positioning frame; a front positioning frame is provided at the front section of the left bottom plate, and a front positioning plate is provided on the front positioning frame. The upper end of the front positioning plate is bent forward to form a guide edge, and a left front Hall sensor unit is provided on one side of the front positioning frame; a left fine adjustment mechanism is provided on the front side of the left bottom plate, and the left fine adjustment mechanism includes a left fine adjustment stand, and a left fine adjustment cylinder is provided at the upper end of the left fine adjustment stand. The movable end of the left fine adjustment cylinder is a left fine adjustment rotary arm set to the rear. The left fine-tuning arm can be rotated 90 degrees to be raised or laid flat. A friction block is provided on the head of the left fine-tuning arm. A left lifting mechanism is provided at the rear of the left base plate. The left lifting mechanism includes a left lifting stand and a left lifting cylinder mounted on the left lifting stand. A lifting plate is provided at the movable end of the left lifting cylinder. A centering block is provided on one side of the lifting plate. A vertical frame with a centering groove is provided on one side of the left lifting stand. When the lifting plate is at its highest position, the centering block is inserted into the centering groove to complete centering. Similarly, the right base plate has a right positioning frame, a right front support column, a right rear support column, a right fine-tuning mechanism, and a right lifting mechanism. The upper side of the left positioning frame is equipped with a laser sensor group facing the box channel. The laser sensor group includes several laser sensors, and the several laser sensors are arranged in a row on the same horizontal line.
2. The laser-positionable bin positioning fixture according to claim 1, characterized in that: The upper end of the lifting plate is fixed with a top head that matches the bottom surface of the material box.
3. The laser-positionable bin positioning fixture according to claim 2, characterized in that: The top end of the top is rounded.
4. The laser-positionable bin positioning fixture according to claim 2, characterized in that: The top is a rubber head.
5. The laser-positionable bin positioning fixture according to claim 1, characterized in that: The left lifting mechanism has two sets of centering slots and centering blocks, which are symmetrical from left to right.
6. The laser-positionable bin positioning fixture according to claim 1, characterized in that: A left rear Hall sensor unit is provided on one side of the left rear support column.
7. The laser-positionable bin positioning fixture according to claim 1, characterized in that: A Hall effect sensor counter is also installed near the box channel on the left bottom plate.