A full-process production process for laser cutting of bicycle tubes

Abstract

The invention discloses a full-process production process for laser cutting of bicycle pipes, which relates to the technical field of bicycle production. The process covers the full-process automated operation from raw material feeding to final welding, mainly including the steps of crane hoisting, pipe separation and feeding, curvature adjustment, laser rust removal, laser cutting, and welding operations. Quality inspection and trial assembly still require some manual work. Through the automation and precise control of each process, the improvement of production efficiency and product quality is ensured. In particular, a multi-stage curvature adjustment and laser rust removal device, as well as visual inspection technology in the trial assembly link are introduced to improve the precision and consistency of parts processing, while reducing the influence of manual operation on product quality, thereby realizing efficient and stable production. The process has strong flexibility and scalability, and can adapt to the processing needs of pipes of different sizes. The problems of unstable part quality and low efficiency existing in the existing bicycle pipe processing technology are solved.

Description

Technical Field

[0001] The invention relates to the technical field of bicycle production, and in particular to a full-process production process for laser cutting of bicycle pipes. Background Art

[0002] With the continuous development of the bicycle market, consumers have higher and higher requirements for the quality and performance of bicycles. The traditional bicycle manufacturing process mainly relies on manual operation, which is not only inefficient but also prone to unstable quality problems. Especially in the cutting and welding assembly of pipes, the errors and instability of manual operation are more obvious. Therefore, the quality control of the pipe processing of bicycle frames has become a key way to improve bicycle production efficiency and product quality.

[0003] At present, traditional bicycle pipe processing technologies mainly include manual grinding, manual cutting, manual welding and semi-automatic production equipment. These processes have the following limitations:

[0004] 1. Inefficiency: The manual cutting and welding process requires a lot of time and labor, which cannot meet the needs of large-scale production.

[0005] 2. Insufficient precision: It is difficult to ensure high precision in pipe cutting and welding when the cutting machine is operated manually. This can easily lead to pipe size deviation and poor quality of pipe cuts. As a result, the welded joints may have quality problems such as weld desoldering, uneven welds, and excessive welds, which will affect the overall performance and safety of the bicycle frame.

[0006] 3. Unstable quality and high unit cost of parts processing: Manual operation is greatly affected by the workers' skill level, and the operation quality of different workers varies, resulting in unstable product quality; high labor costs, coupled with rework and repair costs caused by material waste and quality problems, make the overall production cost high.

[0007] Therefore, developing and designing a process method that can improve bicycle parts is particularly important for improving product quality and production line efficiency.

[0008] Among them, laser cutting technology has become an important tool in modern manufacturing with its high precision, high efficiency and high flexibility. By applying laser cutting technology to the processing of bicycle pipes, production efficiency and product quality can be significantly improved.

[0009] In addition, combining automation technology to achieve full process automation from pipe feeding, rust removal, correction, cutting, quality inspection to welding and assembly can further optimize the production process and reduce costs.

[0010] In summary, it is found that the prior art has at least the following technical problems:

[0011] The existing manual processing technology for bicycle pipes still has problems such as unstable quality of processed parts and low efficiency. Summary of the invention

[0012] The purpose of the present invention is to provide a full-process production process for laser cutting of bicycle pipes, so as to solve the problems of unstable quality of processed parts and low efficiency in the existing manual processing technology of bicycle pipes.

[0013] The various technical effects that can be produced by the preferred technical solutions among the various technical solutions provided by the present invention are described in detail below.

[0014] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0015] The present invention provides a full-process production process for laser cutting of bicycle tubes, comprising the following steps: S1: driving a vehicle to hoist a whole bundle of tubes;

[0016] S2: The tube roller feeder is arranged side by side with the crane along the length direction of the tube. The tube roller feeder receives the whole bundle of tubes hoisted and places the whole bundle of tubes on the tube storage compartment;

[0017] S2.1: Start the binding belt cutting device on the pipe storage space to cut the binding belt on the whole bundle of pipes, and loosen the binding belt on the pipes;

[0018] S2.2: Pipe rolling separation loading, pipes are lifted from the pipe storage compartment, and after multiple stages of lifting, single pipes are finally separated;

[0019] S2.3: A single pipe enters the curvature coarse screening device of the rolling pipe feeder. If the curvature of the pipe is within the standard value range, it will rise to the next level. If the curvature of the pipe exceeds the standard value range, it will fall and be discharged;

[0020] S3: The linear feeder is arranged side by side with the tube roller feeder along the length direction of the tube. The linear feeder receives the single tube discharged by the tube roller feeder and feeds the tube linearly to the next level.

[0021] S3.1: In a linear feed channel, multiple friction wheels press on a single tube to drive the tube forward in a straight line;

[0022] S3.2: The pipe enters the first curvature fine-tuning device;

[0023] S3.3: After the pipe passes through the first curvature fine-tuning device, the pipe then passes through the laser rust removal device;

[0024] S3.4: The pipe enters the second curvature fine-tuning device;

[0025] S4: Laser cutting machine. The laser cutting machine is connected end-to-end with the linear feeder along the length of the pipe. The laser cutting machine has a built-in positioning fixture. A single pipe passes through the feed port of the laser cutting machine from the linear feeder and enters the positioning fixture. The laser head of the laser cutting machine starts cutting to process and split the pipe parts. The processed parts fall to the outlet after being split.

[0026] S5: Outgoing conveyor line. The two ends of the outgoing conveyor line are connected to the outgoing port of the laser cutting machine and the welding production line respectively. A quality inspection table and a test assembly table are arranged in sequence along the conveying direction of the outgoing conveyor line.

[0027] S5.1: Quality inspection station, where parts are manually picked up from the outfeed conveyor line to check the surface quality and cut quality of the parts; qualified parts are placed on the outfeed conveyor line and then transferred to the test assembly station; unqualified parts are placed in the first waste box and recycled as waste;

[0028] S5.2: Test assembly station, manually pick up parts from the outfeed conveyor line, place the parts in the test assembly fixture composed of standard parts to be assembled according to the assembly position, and check the compatibility of the parts when combined with other parts to be assembled;

[0029] S5.3: A visual inspection camera is provided above the trial assembly fixture. The visual inspection camera photographs the joints when the parts are combined with other parts to be assembled, measures the joint size value, and then determines whether the joint size value is within the set standard value range; if the joint size value of the parts is greater than the standard value, it is judged as an unqualified part and is placed in the second scrap box for recycling as scrap; if the joint size value of the parts is within the standard value range, it is judged as a qualified part and is placed back in the outfeed conveyor line, and the parts flow to the next production line;

[0030] S6: The welding production line receives qualified parts from the outgoing conveyor line and enters the assembly and welding operations.

[0031] In one of the embodiments, a binding strap collection frame is placed on the ground at one end of the pipe storage compartment; in step S2.2, after the entire bundle of pipes is lifted, the cut binding straps are driven by the conveyor belt on the pipe storage compartment, and the binding straps flow to one end of the pipe storage compartment, and the binding straps fall from the pipe storage compartment to the binding strap collection frame, thereby completing the automatic recovery of binding strap waste; a sensor is provided at the end of the pipe storage compartment, and after the binding straps fall to the binding strap collection frame, the sensor signal is transmitted to the crane in step S1 to lift the next bundle of pipes.

[0032] In one of the embodiments, a ground picking area is set in a safe area below the curvature coarse screening device of the roller tube feeder; in step S2.3, the tubes with curvature exceeding the standard value range are discharged to the ground picking area, picked up by workers, and transported to a dedicated tube straightening machine for straightening. After the tubes are straightened, they are put back into the tube storage compartment in step S2.2 and separated along with the tubes stacked in the tube storage compartment.

[0033] In one of the embodiments, in step S3.3, a laser rust removal head is provided on the upper and lower sides of a linear feed channel through which the pipe passes; when the pipe is fed linearly, the laser rust removal heads on the upper and lower sides emit lasers at the same time, and the pipe is rusted while being fed.

[0034] In one of the embodiments, along the feeding direction of the tube, a first material channel and a second material channel are sequentially arranged next to the positioning fixture of the laser cutting machine, the first material channel is used to collect debris dropped during the laser processing of the tube or excess material tails cut out, and the second material channel is used to collect processed parts; in step S4, after the tube is positioned and aligned in the positioning fixture, the tube continues to feed and extends out of the positioning fixture to the length of a processed part, the positioning fixture is then clamped, and the laser head of the laser cutting machine processes according to the feed program; wherein, when punching a hole at a specified position of the tube, the processed part of the tube is located above the first material channel, and the debris generated by the processing falls into the first material channel; when the tube processing is completed and the cutting program is entered, the tube is fed to the top of the second material channel, and the parts formed by the tube cutting fall into the second material channel.

[0035] In one of the embodiments, a scrap frame is arranged outside the laser cutting machine below the outlet of the first material channel for collecting processing debris and waste.

[0036] In one embodiment, the outlet of the second material channel is a discharge port, and the second material channel is connected to the discharge conveyor line to transport the processed parts to the discharge conveyor line.

[0037] In one of the embodiments, in step S5.1, the quality inspection station needs to check the surface finish of the part to determine whether the rust removal is clean and reaches the smoothness required by the processing, check whether there is any residual cutting burr on the incision of the part, and check whether the surface of the incision of the part is flat and reaches the flatness required by the processing.

[0038] In one of the embodiments, in step S5.2, the parts are assembled in the test fixture according to the assembly position on the test bench, and it is necessary to check whether the curvature of the cut of the part is completely aligned with the standard component; if so, the curvature of the cut of the part is qualified, and the process proceeds to step S5.3 for the numerical measurement and inspection of the seam size; if not, the curvature of the cut of the part is unqualified, and the part is placed in the second scrap box and recycled as scrap.

[0039] In one embodiment, a part receiving station is provided at a position in the welding production line that is connected to the discharge conveyor line, and the welding production line is also provided with a tooling placement area, a waiting area, a handling manipulator, a welding area, a welding manipulator, a welding table and a discharge area; in step S6, the parts conveyed by the discharge conveyor line are delivered to the part receiving station of the welding production line;

[0040] S6.1: Tool assembly: Take out the welding tool from the tool placement area, and combine the parts and other components to be welded into the welding tool. The assembled welding tool is placed in the waiting area;

[0041] S6.2: Welding: The handling robot moves the assembled welding tooling from the waiting area to the welding table in the welding area. The welding robot welds the joints of the parts on the welding tooling. After welding is completed, the welding table automatically moves the welded welding tooling to the unloading area.

[0042] S6.3: Repeat step 6.2 to perform continuous batch welding.

[0043] The beneficial effects of the present invention are as follows:

[0044] The full-process production process of laser cutting bicycle tubes has many benefits, which are reflected in the following aspects:

[0045] 1. Improve production efficiency and precision: This process introduces a fully automated operating system in the three links of feeding, tube pretreatment and laser processing to manufacture parts, which can greatly reduce manual intervention in the parts processing process, thereby significantly improving product manufacturing quality and production efficiency.

[0046] Specifically, from the hoisting of the whole bundle of pipes in step S1 to the welding production line in step S6, the combination of automated design and manual work ensures the efficient connection of each process link, reduces waiting time and material loss, and also takes into account the cost investment of the production line construction, achieving the best balance in terms of increasing production capacity and cost investment. At the same time, in steps S2.3, S3.2, and S3.4, a curvature coarse screen and fine-tuning device are used to make the pipe achieve a higher straightness before processing, ensuring the high precision of the laser cutting process and improving the stability of the finished product quality.

[0047] 2. Reduce manual errors and improve product quality: This process combines multiple quality inspections with visual inspection technology, and introduces a collaborative inspection mode between manual and machine in steps S5.1 and S5.3, further improving the controllability of product quality. After the laser cutting tube is made into parts, the surface quality and cut quality of the parts are manually inspected by the quality inspection table, and the size of the seams of the parts combined by the test assembly table are visually inspected to ensure that the cut and seam sizes of each part meet the set standards, thereby greatly improving the quality of the product, preparing for subsequent welding, and helping to improve the quality of subsequent welding processes.

[0048] 3. Reduce material waste and improve utilization: During the processing of pipes, the process maximizes the utilization of materials through graded screening, fine-tuning and rust removal. In step S2.3, pipes with curvatures beyond the standard range are separated to avoid unqualified materials from entering subsequent production links, thereby reducing material waste. In addition, the application of laser cutting technology controls the size of the cutting seam, effectively reducing the waste generated during the pipe cutting process and improving material utilization.

[0049] 4. Flexible production: This process can adapt to the processing needs of pipes of different specifications and sizes, and has strong flexibility; the machines used in the process can be adaptively adjusted according to the diameter of the pipe, and the laser cutting machine can also adjust the feed route according to the processing needs, thereby adapting to diversified production needs; this flexible manufacturing feature enables this process to not only meet the needs of large-scale standardized production, but also flexibly respond to personalized customized production, reducing the cost investment in transforming production line equipment due to product upgrades.

[0050] In summary, the full-process production process of bicycle tube laser cutting has significant benefits in improving production efficiency, ensuring product quality, reducing material waste and flexible production, providing an efficient and reliable automated production solution for bicycle manufacturing. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] In order to more clearly illustrate the technical solution of the present invention, the drawings required for use in the implementation mode will be briefly introduced below. Obviously, the drawings described below are only some implementation modes of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0052] Figure 1 It is a schematic diagram of the process flow of the present invention. DETAILED DESCRIPTION

[0053] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0054] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0055] The specific implementation provides a full-process production process for laser cutting of bicycle pipes, which effectively solves the problems of unstable quality of processed parts and low efficiency in the existing manual processing technology of bicycle pipes.

[0056] In addition, all the contents of the configurations shown in the following embodiments are not necessarily limited to the solutions of the invention described in the claims.

[0057] The implementation of the full process production process of laser cutting of bicycle tubes is as follows: Figure 1 As shown, the following steps are included: S1: driving a crane to hoist a whole bundle of pipes;

[0058] S2: The tube roller feeder is arranged side by side with the crane along the length direction of the tube. The tube roller feeder receives the whole bundle of tubes hoisted and places the whole bundle of tubes on the tube storage compartment;

[0059] S2.1: Start the binding belt cutting device on the pipe storage space to cut the binding belt on the whole bundle of pipes, and loosen the binding belt on the pipes;

[0060] S2.2: Pipe rolling separation loading, pipes are lifted from the pipe storage compartment, and after multiple stages of lifting, single pipes are finally separated;

[0061] S2.3: A single pipe enters the curvature coarse screening device of the rolling pipe feeder. If the curvature of the pipe is within the standard value range, it will rise to the next level. If the curvature of the pipe exceeds the standard value range, it will fall and be discharged;

[0062] S3: The linear feeder is arranged side by side with the tube roller feeder along the length direction of the tube. The linear feeder receives the single tube discharged by the tube roller feeder and feeds the tube linearly to the next level.

[0063] S3.1: In a linear feed channel, multiple friction wheels press on a single tube to drive the tube forward in a straight line;

[0064] S3.2: The pipe enters the first curvature fine-tuning device;

[0065] S3.3: After the pipe passes through the first curvature fine-tuning device, the pipe then passes through the laser rust removal device;

[0066] S3.4: The pipe enters the second curvature fine-tuning device;

[0067] S4: Laser cutting machine. The laser cutting machine is connected end-to-end with the linear feeder along the length of the pipe. The laser cutting machine has a built-in positioning fixture. A single pipe passes through the feed port of the laser cutting machine from the linear feeder and enters the positioning fixture. The laser head of the laser cutting machine starts cutting to process and split the pipe parts. The processed parts fall to the outlet after being split.

[0068] S5: Outgoing conveyor line. The two ends of the outgoing conveyor line are connected to the outgoing port of the laser cutting machine and the welding production line respectively. A quality inspection table and a test assembly table are arranged in sequence along the conveying direction of the outgoing conveyor line.

[0069] S5.1: Quality inspection station, where parts are manually picked up from the outfeed conveyor line to check the surface quality and cut quality of the parts; qualified parts are placed on the outfeed conveyor line and then transferred to the test assembly station; unqualified parts are placed in the first waste box and recycled as waste;

[0070] S5.2: Test assembly station, manually pick up parts from the outfeed conveyor line, place the parts in the test assembly fixture composed of standard parts to be assembled according to the assembly position, and check the compatibility of the parts when combined with other parts to be assembled;

[0071] S5.3: A visual inspection camera is provided above the trial assembly fixture. The visual inspection camera photographs the joints when the parts are combined with other parts to be assembled, measures the joint size value, and then determines whether the joint size value is within the set standard value range; if the joint size value of the parts is greater than the standard value, it is judged as an unqualified part and is placed in the second scrap box for recycling as scrap; if the joint size value of the parts is within the standard value range, it is judged as a qualified part and is placed back in the outfeed conveyor line, and the parts flow to the next production line;

[0072] S6: The welding production line receives qualified parts from the outgoing conveyor line and enters the assembly and welding operations.

[0073] The full-process production process of laser cutting bicycle tubes has many benefits, which are reflected in the following aspects:

[0074] 1. Improve production efficiency and precision: This process introduces a fully automated operating system in the three links of feeding, tube pretreatment and laser processing to manufacture parts, which can greatly reduce manual intervention in the parts processing process, thereby significantly improving product manufacturing quality and production efficiency.

[0075] Specifically, from the hoisting of the whole bundle of pipes in step S1 to the welding production line in step S6, the combination of automated design and manual work ensures the efficient connection of each process link, reduces waiting time and material loss, and also takes into account the cost investment of the production line construction, achieving the best balance in terms of increasing production capacity and cost investment. At the same time, in steps S2.3, S3.2, and S3.4, a curvature coarse screen and fine-tuning device are used to make the pipe achieve a higher straightness before processing, ensuring the high precision of the laser cutting process and improving the stability of the finished product quality.

[0076] 2. Reduce manual errors and improve product quality: This process combines multiple quality inspections with visual inspection technology, and introduces a collaborative inspection mode between manual and machine in steps S5.1 and S5.3, further improving the controllability of product quality. After the laser cutting tube is made into parts, the surface quality and cut quality of the parts are manually inspected by the quality inspection table, and the size of the seams of the parts combined by the test assembly table are visually inspected to ensure that the cut and seam sizes of each part meet the set standards, thereby greatly improving the quality of the product, preparing for subsequent welding, and helping to improve the quality of subsequent welding processes.

[0077] 3. Reduce material waste and improve utilization: During the processing of pipes, the process maximizes the utilization of materials through graded screening, fine-tuning and rust removal. In step S2.3, pipes with curvatures beyond the standard range are separated to avoid unqualified materials from entering subsequent production links, thereby reducing material waste. In addition, the application of laser cutting technology controls the size of the cutting seam, effectively reducing the waste generated during the pipe cutting process and improving material utilization.

[0078] 4. Flexible production: This process can adapt to the processing needs of pipes of different specifications and sizes, and has strong flexibility; the machines used in the process can be adaptively adjusted according to the diameter of the pipe, and the laser cutting machine can also adjust the feed route according to the processing needs, thereby adapting to diversified production needs; this flexible manufacturing feature enables this process to not only meet the needs of large-scale standardized production, but also flexibly respond to personalized customized production, reducing the cost investment in transforming production line equipment due to product upgrades.

[0079] In summary, the full-process production process of bicycle tube laser cutting has significant benefits in improving production efficiency, ensuring product quality, reducing material waste and flexible production, providing an efficient and reliable automated production solution for bicycle manufacturing.

[0080] As one optional implementation,

[0081] Regarding the above-mentioned S2.2 step of recovering the binding belt and automatically lifting and loading the pipe, this embodiment is as follows: Figure 1 As shown, a binding belt collection frame is placed on the ground at one end of the pipe storage compartment; in step S2.2, after the whole bundle of pipes is lifted, the cut binding belts are driven by the conveyor belt on the pipe storage compartment, and the binding belts flow to one end of the pipe storage compartment, and the binding belts fall from the pipe storage compartment to the binding belt collection frame, completing the automatic recovery of binding belt waste; a sensor is provided at the end of the pipe storage compartment, and after the binding belts fall to the binding belt collection frame, the signal of the sensor is transmitted to the crane in step S1 to lift the next bundle of pipes.

[0082] Regarding the pipe curvature screening and recycling step in step S2.3 above, this embodiment Figure 1 As shown, a ground picking area is set in the safety area below the curvature coarse screening device of the roller tube feeder; in step S2.3, the tubes with curvature exceeding the standard value range are discharged to the ground picking area, picked up by workers, and transported to a special tube straightening machine for straightening. After the tubes are straightened, they are put back into the tube storage compartment in step S2.2 and separated along with the tubes stacked in the tube storage compartment.

[0083] Regarding the laser rust removal setting of the pipe in the feeding process of the above step S3.3, this embodiment is as follows Figure 1 As shown, in step S3.3, a laser rust removal head is provided on the upper and lower sides of the linear feeding channel through which the pipe passes; when the pipe is fed linearly, the laser rust removal heads on the upper and lower sides emit lasers at the same time, and the pipe is rusted while being fed.

[0084] During application, the upper and lower laser rust removal heads can cover the outer circumference of the pipe cross section 360 degrees, and cooperate with the linear feed route of the pipe to achieve rust removal on the circumferential surface of the entire length of the pipe.

[0085] Regarding the waste recycling and parts recycling arrangement of the pipe processing in the above step S4, this embodiment is as follows Figure 1 As shown, along the feeding direction of the tube, a first material channel and a second material channel are arranged in sequence next to the positioning fixture of the laser cutting machine, the first material channel is used to collect the debris dropped during the laser processing of the tube or the excess material tail cut out, and the second material channel is used to collect the processed parts; in step S4, after the tube is positioned and aligned in the positioning fixture, the tube continues to feed and extends out of the positioning fixture to the length of a processed part, the positioning fixture is then clamped, and the laser head of the laser cutting machine is processed according to the feed program; wherein, when punching the specified position of the tube, the tube processing part is located above the first material channel, and the debris generated by the processing falls into the first material channel; when the tube processing is completed and the cutting program is entered, the tube is fed to the top of the second material channel, and the parts formed by the tube cutting fall into the second material channel.

[0086] Among them, regarding the waste transportation of the first material channel, a scrap frame is arranged outside the laser cutting machine and below the outlet of the first material channel for collecting processing debris and waste.

[0087] Regarding the parts transportation of the second material channel, the outlet of the second material channel is the discharge port, and the second material channel is connected to the discharge conveyor line to transport the processed parts to the discharge conveyor line.

[0088] Regarding the necessary quality inspection items of the quality inspection station in the laser processed parts in step S5.1 above, this implementation example Figure 1 As shown, in step S5.1, the quality inspection station needs to check the surface finish of the part to determine whether the rust removal is clean and reaches the finish required by the processing, check whether there is any residual cutting burr on the incision of the part, and check whether the surface of the incision of the part is flat and reaches the flatness required by the processing.

[0089] Regarding the necessary quality inspection items and parts recycling process of the test bench in step S5.2 above, this implementation example Figure 1 As shown, in step S5.2, the parts are assembled in the test fixture according to the assembly position on the test bench, and it is necessary to check whether the curvature of the cut of the part is completely aligned with the standard component; if so, the curvature of the cut of the part is qualified, and the process proceeds to step S5.3 for the numerical measurement and inspection of the joint size; if not, the curvature of the cut of the part is unqualified, and the part is placed in the second scrap box and recycled as scrap.

[0090] Regarding the specific welding process flow of the welding production line in step S6, this embodiment is as follows: Figure 1 As shown, a part receiving station is provided at the position where the welding production line is connected with the discharge conveyor line. The welding production line is also provided with a tool placement area, a waiting area, a handling robot, a welding area, a welding robot, a welding table and a discharge area. In step S6, the parts conveyed by the discharge conveyor line are delivered to the part receiving station of the welding production line. S6.1: tool assembly, taking out the welding tool from the tool placement area, and combining the parts with other parts to be welded into the welding tool, and placing the assembled welding tool in the waiting area. S6.2: welding, the handling robot transports the assembled welding tool from the waiting area to the welding table in the welding area, and the welding robot welds the part seams on the welding tool. After welding is completed, the welding table automatically moves the welded welding tool to the discharge area. S6.3: repeat step 6.2 for continuous batch welding.

[0091] The second embodiment of the full-process production process of laser cutting of bicycle tubes is different from the first embodiment in that, in order to realize the full-automatic production process of laser cutting of bicycle tubes, the manual picking of parts in step S5.1 is replaced by a picking robot, and a visual camera is set to check the surface quality and incision quality of the parts. The picking robot puts the parts under the visual camera and rotates them at multiple angles. The visual camera takes multiple photos of the parts to be inspected, and the visual system is used to automatically judge the quality of the parts. The visual camera transmits the judgment result of whether the parts are qualified to the picking robot, and the picking robot sorts and processes the parts;

[0092] For picking up parts in steps S5.2 and 5.3, an assembly robot is also added to replace manual picking. After the assembly robot picks up the parts, it places the parts in the trial assembly fixture for trial assembly of the parts. The visual inspection camera then determines the size of the joints of the assembled parts and transmits the judgment result of whether the parts are qualified to the assembly robot, which then sorts and processes the parts.

[0093] The advantage of this embodiment is that, although the production line product input of picking robots, visual cameras and assembly robots is increased, human intervention is reduced. The full-process production process of fully automatic bicycle tube laser cutting can achieve continuous and complex production tasks, and can further improve the consistency of produced parts, thereby improving the quality of parts. The efficiency and quality of parts manufacturing are improved, and the cost will decrease with the output of the production line. After reaching the output, the cost will be lower than the production process with manual intervention, achieving the goal of reducing costs and increasing efficiency.

[0094] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described.

Claims

1. A full-process production process for laser cutting of bicycle tubes, characterized in that: include Follow these steps: S1: Driving, lifting the whole bundle of pipes; S2: The tube roller feeder is arranged side by side with the crane along the length direction of the tube. The tube roller feeder receives the whole bundle of tubes hoisted and places the whole bundle of tubes on the tube storage compartment; S2.1: Start the binding belt cutting device on the pipe storage space to cut the binding belt on the whole bundle of pipes, and loosen the binding belt on the pipes; S2.2: Pipe rolling separation loading, pipes are lifted from the pipe storage compartment, and after multiple stages of lifting, single pipes are finally separated; S2.3: A single pipe enters the curvature coarse screening device of the rolling pipe feeder. If the curvature of the pipe is within the standard value range, it will rise to the next level. If the curvature of the pipe exceeds the standard value range, it will fall and be discharged; S3: The linear feeder is arranged side by side with the tube roller feeder along the length direction of the tube. The linear feeder receives the single tube discharged by the tube roller feeder and feeds the tube linearly to the next level. S3.1: In a linear feed channel, multiple friction wheels press on a single tube to drive the tube forward in a straight line; S3.2: The pipe enters the first curvature fine-tuning device; S3.3: After the pipe passes through the first curvature fine-tuning device, the pipe then passes through the laser rust removal device; S3.4: The pipe enters the second curvature fine-tuning device; S4: Laser cutting machine. The laser cutting machine is connected end-to-end with the linear feeder along the length of the pipe. The laser cutting machine has a built-in positioning fixture. A single pipe passes through the feed port of the laser cutting machine from the linear feeder and enters the positioning fixture. The laser head of the laser cutting machine starts cutting to process and split the pipe parts. The processed parts fall to the outlet after being split. S5: Outgoing conveyor line. The two ends of the outgoing conveyor line are connected to the outgoing port of the laser cutting machine and the welding production line respectively. A quality inspection table and a test assembly table are arranged in sequence along the conveying direction of the outgoing conveyor line. S5.1: Quality inspection station, where parts are manually picked up from the outfeed conveyor line to check the surface quality and cut quality of the parts; qualified parts are placed on the outfeed conveyor line and then transferred to the test assembly station; unqualified parts are placed in the first waste box and recycled as waste; S5.2: Test assembly station, manually pick up parts from the outfeed conveyor line, place the parts in the test assembly fixture composed of standard parts to be assembled according to the assembly position, and check the compatibility of the parts when combined with other parts to be assembled; S5.3: A visual inspection camera is provided above the trial assembly fixture. The visual inspection camera photographs the joints of the parts when they are combined with other parts to be assembled, measures the joint size value, and then determines whether the joint size value is within the set standard value range; If the joint size value of the parts is greater than the standard value, it is judged as an unqualified part and put into the second scrap box for recycling as scrap; if the joint size value of the parts is within the standard value range, it is judged as a qualified part and put back into the outfeed conveyor line, and the parts flow to the next production line; S6: The welding production line receives qualified parts from the outgoing conveyor line and enters the assembly and welding operations.

2. The full-process production process for laser cutting of bicycle tubes according to claim 1 is characterized in that: A binding belt collection frame is placed on the ground at one end of the pipe storage compartment; In step S2.2, after the whole bundle of pipes is lifted, the cut binding belts are driven by the conveyor belt on the pipe storage compartment, and the binding belts flow to one end of the pipe storage compartment, and the binding belts fall from the pipe storage compartment to the binding belt collection frame, completing the automatic recycling of binding belt waste; A sensor is provided at the end of the pipe storage compartment. After the binding belt falls to the binding belt collection frame, the sensor signal is transmitted to the crane in step S1 to lift the next bundle of pipes.

3. The full-process production process for laser cutting of bicycle tubes according to claim 1 is characterized in that: Provide a ground pick-up area in a safe area below the curvature coarse screening device of the roller tube feeder; In step S2.3, the pipes with curvature exceeding the standard value range are discharged to the ground picking area, picked up by workers, and transported to a special pipe straightening machine for straightening. After the straightening, the pipes are put back into the pipe storage compartment in step S2.2 and separated from the pipes stacked in the pipe storage compartment.

4. The full-process production process for laser cutting of bicycle tubes according to claim 1 is characterized in that: In step S3.3, a laser rust removal head is provided on the upper and lower sides of the linear feeding channel through which the pipe passes; when the pipe is fed linearly, the laser rust removal heads on the upper and lower sides emit lasers at the same time, and the pipe is rusted while being fed.

5. The full-process production process for laser cutting of bicycle tubes according to claim 1 is characterized in that: Along the feeding direction of the tube, the first and second material channels are arranged next to the positioning fixture of the laser cutting machine. The first channel is used to collect the debris dropped during the laser processing of the tube or the excess tails cut out, and the second channel is used to collect the processed parts. In step S4, after the tube is positioned and aligned in the positioning fixture, the tube continues to be fed out of the positioning fixture to the length of a processed part, and the positioning fixture is then clamped, and the laser head of the laser cutting machine performs processing according to the feed program; wherein, when punching a hole at a specified position of the tube, the processed part of the tube is located above the first material channel, and the debris generated by the processing falls into the first material channel; when the tube processing is completed and the cutting program is entered, the tube is fed to the top of the second material channel, and the parts formed by the tube cutting fall into the second material channel.

6. The full-process production process for laser cutting of bicycle tubes according to claim 5 is characterized in that: Outside the laser cutting machine, a scrap frame is arranged below the outlet of the first material channel for collecting processing debris and waste.

7. The full-process production process for laser cutting of bicycle tubes according to claim 5 is characterized in that: The outlet of the second material channel is the discharge port, and the second material channel is connected to the discharge conveyor line to transport the processed parts to the discharge conveyor line.

8. The full-process production process for laser cutting of bicycle tubes according to claim 1 is characterized in that: In step S5.1, the quality inspection station needs to check the surface finish of the part to determine whether the rust removal is clean and reaches the finish required by the processing, check whether there is any residual cutting burr on the incision of the part, and check whether the surface of the incision of the part is flat and reaches the flatness required by the processing.

9. The full-process production process for laser cutting of bicycle tubes according to claim 1 is characterized in that: In step S5.2, the parts are assembled in the test fixture according to the assembly position on the test bench, and it is necessary to check whether the curvature of the cut of the parts is completely consistent with the standard parts; If the parts fit well, the curvature of the cutout is acceptable, and the process goes to step S5.3 for the numerical measurement and inspection of the joint dimensions; If they do not fit, the part's cut curvature is unqualified, and the part is placed in the second scrap box and recycled as scrap.

10. The full-process production process for laser cutting of bicycle tubes according to claim 1 is characterized in that: The welding production line is equipped with a parts receiving area at the position where it connects with the discharge conveyor line. The welding production line is also equipped with a tooling placement area, a waiting area, a handling manipulator, a welding area, a welding manipulator, a welding table and a discharge area. In step S6, the parts conveyed by the outgoing conveyor line are delivered to the parts receiving station of the welding production line; S6.1: Tool assembly: Take out the welding tool from the tool placement area, and combine the parts and other components to be welded into the welding tool. The assembled welding tool is placed in the waiting area; S6.2: Welding: The handling robot moves the assembled welding tooling from the waiting area to the welding table in the welding area. The welding robot welds the joints of the parts on the welding tooling. After welding is completed, the welding table automatically moves the welded welding tooling to the unloading area. S6.3: Repeat step 6.2 to perform continuous batch welding.

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