A rim spinning and shaping integrated machine

Abstract

The present invention provides a rim spinning and shaping all-in-one machine, which belongs to the field of rim manufacturing technology. It solves the problems of low production efficiency and low pass rate in existing rim processing. The present invention includes a base, an external rotation forming device, a cold plastic shaping device, a controller and a conveying device, the conveying device includes a roller ring positioning frame and a shaping positioning frame, the roller ring positioning frame and the shaping positioning frame are both used to support the rim; the controller is used to control the operation of the above-mentioned external rotation forming device so as to perform external rotation forming on the rim to be processed located on the roller ring positioning frame, to control the operation of the above-mentioned conveying device so as to automatically convey the rim that has been externally rotated and located on the roller ring positioning frame to the above-mentioned shaping positioning frame, and to control the operation of the above-mentioned cold plastic shaping device so as to perform cold plastic shaping on the rim that has been externally rotated and located on the above-mentioned shaping positioning frame. The rim spinning and shaping all-in-one machine has the advantages of high degree of automation and precise size of finished products.

Description

Technical Field

[0001] The invention belongs to the technical field of rim manufacturing, and in particular relates to an integrated rim spinning and shaping machine. Background Art

[0002] The rim is commonly known as the wheel rim. It is a component that mounts and supports the tire around the wheel and forms a wheel with the spokes. The rim is responsible for carrying the weight of the vehicle, transmitting power, and supporting the tire. As a rotating moving component, the rim must have a certain rigidity and meet technical requirements such as fatigue resistance and dynamic balance.

[0003] The traditional wheel rim production process is: the sheet material is cut into strips, and after rolling, welding, scraping and grinding, the blank wheel rim is made, and the blank wheel rim is loaded into the wheel rim spinning machine for spinning. At present, the wheel rim is generally produced in sections by multiple equipments in the spinning forming stage. The equipment occupies a large space, the process is cumbersome, and two fixed operators are required to operate. The material turnover between the processes depends on manual handling, which is not only labor-intensive, high in labor costs, and low in production efficiency, but also the precision of the manufactured wheel rim is low, the precision is unstable, and the scrap rate is high. Summary of the invention

[0004] The purpose of the present invention is to solve the above technical problems and propose a rim spinning and shaping all-in-one machine.

[0005] The purpose of the present invention can be achieved by the following technical solutions:

[0006] A rim spinning and shaping machine comprises a base and an outward rotation forming device and a cold plastic shaping device installed on the base, and is characterized in that it also comprises a controller and a conveying device installed on the above-mentioned base, the conveying device comprises a roller ring positioning frame located at the above-mentioned outward rotation forming device and a shaping positioning frame located at the above-mentioned cold plastic shaping device, the roller ring positioning frame and the shaping positioning frame are both used to support the rim; the controller is used to control the operation of the above-mentioned outward rotation forming device so as to perform outward rotation forming on the rim to be processed located on the roller ring positioning frame, is used to control the operation of the above-mentioned conveying device so as to automatically convey the outwardly rotated rim located on the roller ring positioning frame to the above-mentioned shaping positioning frame, and is used to control the operation of the above-mentioned cold plastic shaping device so as to perform cold plastic shaping on the outwardly rotated rim located on the above-mentioned shaping positioning frame.

[0007] In the above-mentioned rim spinning and shaping integrated machine, the outward rotation forming device includes a frame, a left slider, a right slider, a slider driving mechanism, a driving source, a transmission mechanism and a rolling mold structure installed on the frame, the transmission mechanism includes two driven wheel assemblies, two driving wheel assemblies, a spline shaft and two spline nuts, the two driven wheel assemblies are respectively installed on the upper ends of the left slider and the right slider, the two driving wheel assemblies are installed on the lower ends of the left slider and the right slider and are respectively sleeved on the spline shaft through the two spline nuts, the spline shaft is fixedly connected to the driving source, the spline nut is fixedly connected to the above-mentioned driving wheel assembly, the two driven wheel assemblies are respectively fixedly installed with a left rolling ring mold and a right rolling ring mold, the rolling mold structure includes a rolling mold, the left rolling ring mold and the right rolling ring mold are used to clamp the two sides of the rim to be processed and cooperate with the above-mentioned rolling mold to perform outward rotation forming on the rim to be processed.

[0008] In the above-mentioned rim spinning and shaping machine, the driving wheel assembly includes a driving wheel, which is a driving gear; the driven wheel assembly includes a driven wheel, which is a driven gear; the driving gear and the driven gear are meshed with each other, and the driving gear is fixedly mounted on the above-mentioned spline nut.

[0009] In the above-mentioned wheel rim spinning and shaping machine, the slider driving mechanism includes a first stroke switch, a slide rail, two slider base plates and two first hydraulic cylinders, the bottoms of the left slider and the right slider are respectively fixedly mounted on the two slider base plates, the two slider base plates are slidably connected to the slide rails through movable sliders, the driving rods of the two first hydraulic cylinders are respectively fixedly connected to the left slider and the right slider and are used to drive the left slider and the right slider to move relatively close to or away from each other horizontally along the slide rails, the first stroke switch is electrically connected to the above-mentioned controller and is used to generate a roller mold in-place signal to the controller when the above-mentioned left roller mold and the right roller mold are relatively close to and in place; the above-mentioned left roller mold and the right roller mold are installed at relative positions on the upper ends of the left slider and the right slider.

[0010] In the above-mentioned rim spinning and shaping machine, the rolling mold structure includes a lever assembly, a second stroke switch and a second hydraulic cylinder. The lever assembly includes a support shaft fixedly mounted on a frame and a lever rotatably connected to the support shaft. The above-mentioned rolling mold is installed on one end of the lever, and a guide rod is fixedly connected to the other end of the lever. The guide rod is fixedly connected to the driving rod of the second hydraulic cylinder. Vertical strip grooves are opened on both sides of the frame, and the two ends of the guide rod are respectively located in the above-mentioned strip grooves and can reciprocate back and forth along the strip grooves. The second stroke switch is electrically connected to the above-mentioned controller and is used to generate a rolling mold in-place signal to the controller when the rolling mold presses down the rim to be processed into place.

[0011] In the above-mentioned wheel rim spinning and shaping machine, the conveying device includes a roller positioning frame structure with the above-mentioned roller positioning frame, a shaping positioning frame structure with the above-mentioned shaping positioning frame and a slideway, the roller positioning frame structure also includes a first positioning frame, a first cylinder and a first proximity switch, the first positioning frame is fixedly mounted on the above-mentioned base and the upper end is rotatably connected to the first rotating shaft, one end of the above-mentioned roller positioning frame is fixedly connected to the first rotating shaft, and the other end of the roller positioning frame is fixedly connected to the driving rod of the first cylinder; the shaping positioning frame structure also includes a second positioning frame, a second cylinder and a second proximity switch, the second positioning frame is fixedly mounted on the above-mentioned base and the upper end is rotatably connected to the second rotating shaft, one end of the above-mentioned shaping positioning frame is fixedly connected to the second rotating shaft, and the other end of the shaping positioning frame is fixedly connected to the second rotating shaft The driving rod of the cylinder is fixedly connected; the roller positioning frame includes a clamping plate, which has two clamping plates and the upper end of each clamping plate is provided with an arc-shaped groove for accommodating the above-mentioned rim, and the structure of the shaping positioning frame is the same as that of the roller positioning frame; the first proximity switch and the second proximity switch are both electrically connected to the controller, the first proximity switch is used to generate a roller in place signal to the controller when the rim to be processed is placed on the roller positioning frame, and the second proximity switch is used to generate a shaping in place signal to the controller when the rim after outward rotation forming is placed on the shaping positioning frame; the first cylinder and the second cylinder are located between the first positioning bracket and the second positioning bracket, the height of the roller positioning bracket is higher than the height of the shaping positioning bracket, and the roller positioning bracket and the shaping positioning bracket are respectively located at the two ends of the above-mentioned slideway.

[0012] In the above-mentioned rim spinning and shaping machine, the groove surface of the arc-shaped groove is made of nylon material.

[0013] In the above-mentioned rim spinning and shaping machine, the frame is also equipped with a shifting device for intercepting the rim after outward rotation shaping coming down from the above-mentioned slide and positioning the rim on the shaping and positioning frame. One end of the shifting device is fixedly connected to the frame, and the other end of the shifting device is located directly above the above-mentioned shaping and positioning frame.

[0014] In the above-mentioned rim spinning and shaping machine, the cold shaping device includes a third stroke switch and two side plates, two mold bottom plates and two third hydraulic cylinders respectively located on both sides of the above-mentioned shaping positioning frame. The two side plates are fixedly mounted on the above-mentioned base and four guide pillars are fixedly connected between the two side plates. The left shaping mold and the right shaping mold are respectively fixedly mounted on the two mold bottom plates. The two mold bottom plates are slidably sleeved on the four guide pillars and can move back and forth along the four guide pillars to achieve relative approach or separation between the left shaping mold and the right shaping mold. The two hydraulic cylinders are respectively fixedly mounted on the two side plates, and the two mold bottom plates are respectively fixedly connected to the driving rods of the two hydraulic cylinders. The third stroke switch is electrically connected to the above-mentioned controller and is used to generate a shaping mold in place signal to the controller when the above-mentioned left shaping mold and the right shaping mold are relatively close to each other.

[0015] In the above-mentioned rim spinning and shaping machine, the driving source is a reduction motor.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The present invention combines the external rotation forming device and the cold plastic shaping device into an assembly line operation to process and produce the rim, which has a high degree of automation, significantly improves production efficiency and saves manpower consumption.

[0018] 2. The wheel rims manufactured by the present invention have consistent product quality, balanced force, and precise dimensions, which effectively reduces the scrap rate and production costs.

[0019] 3. The present invention simplifies the production process, reduces material turnover, reduces the space occupied by equipment, and optimizes the working environment.

[0020] 4. The present invention is convenient for changing molds, flexible to use, highly versatile and highly efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the present invention.

[0022] Figure 2 It is a schematic structural diagram of the external rotation forming device in the present invention.

[0023] Figure 3 It is a schematic diagram of the installation position of the rolling mold structure in the present invention.

[0024] Figure 4 It is a schematic diagram of the rolling mold structure in the present invention.

[0025] Figure 5 It is a schematic diagram of the structure of the conveying device in the present invention.

[0026] Figure 6 It is a structural schematic diagram of the cold plastic shaping device in the present invention.

[0027] In the figure, 1, base; 2, roller ring positioning frame; 2a, clamping plate; 2b, arc-shaped groove; 3, shaping positioning frame; 4, wheel rim; 5, frame; 5a, strip groove; 6, left slider; 7, right slider; 8, driving source; 9, driven wheel assembly; 10, driving wheel assembly; 11, spline shaft; 12, left roller ring mold; 13, right roller ring mold; 14, roller mold; 15, slide rail; 16, slider bottom plate; 17, first hydraulic cylinder; 18 , movable slider; 19, second hydraulic cylinder; 20, support shaft; 21, lever; 22, guide rod; 23, slideway; 24, first positioning bracket; 25, first cylinder; 26, first rotating shaft; 27, second positioning bracket; 28, second cylinder; 29, second rotating shaft; 30, shifting device; 31, side plate; 32, mold bottom plate; 33, third hydraulic cylinder; 34, guide column; 35, left shaping mold; 36, right shaping mold. DETAILED DESCRIPTION

[0028] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0029] like Figure 1 and Figure 2As shown, the rim spinning and shaping integrated machine includes a base 1 and an external rotation forming device and a cold shaping device installed on the base 1, and also includes a controller and a conveying device installed on the base 1. In this scheme, the external rotation forming process of the rim 4 is subdivided into two steps of external rotation forming and cold shaping. The two processes are connected by a conveying device to realize the automatic turnover of materials and reduce the labor intensity of operators. Specifically, the conveying device includes a roller ring positioning frame 2 located at the external rotation forming device and a shaping positioning frame 3 located at the cold shaping device. The roller ring positioning frame 2 and the shaping positioning frame 3 are both used to support the rim 4. The external rotation forming device, the cold shaping device and the conveying device are electrically connected to the controller to realize the automated production process. In the preparation stage, the manipulator places the rim 4 to be processed on the roller ring positioning frame 2. When the first proximity switch senses that there is a rim 4 on the roller ring positioning frame 2, a rim in place signal is generated and the signal is fed back to the controller. The controller sends a command to the external rotation forming device and controls the external rotation forming device to start the external rotation forming process. When the external rotation forming process is completed, the controller sends a command to the conveying device and controls the conveying device to start working. The conveying device automatically conveys the rim 4 that has been externally rotated and formed on the roller positioning frame 2 to the shaping positioning frame 3. When the second proximity switch senses that there is a rim 4 on the shaping positioning frame 3, it generates a rim in place signal and feeds this signal back to the controller. The controller sends a command to the cold plastic shaping device and controls the cold plastic shaping device to start the cold plastic shaping process. When the cold plastic shaping process is completed, the cold plastic shaping of the rim 4 is completed. The controller sends a command to the conveying device, and the conveying device works to make the cold plastic shaped rim 4 enter the product raceway and enter the next process. The present invention processes and produces rims by combining the external rotation forming device and the cold plastic shaping device into an assembly line operation, which has a high degree of automation, significantly improves production efficiency and saves manpower consumption.

[0030] Specifically, the external rotation forming device includes a frame 5, a left slider 6, a right slider 7, a slider driving mechanism, a driving source 8, a transmission mechanism and a rolling die structure installed on the frame 5. The transmission mechanism includes two driven wheel assemblies 9, two driving wheel assemblies 10, a spline shaft 11 and two spline nuts. The two driven wheel assemblies 9 are respectively installed on the upper ends of the left slider 6 and the right slider 7. The two driving wheel assemblies 10 are installed on the lower ends of the left slider 6 and the right slider 7 and are respectively sleeved on the spline shaft 11 through two spline nuts. The spline shaft 11 is fixedly connected to the driving source 8. Preferably, the driving source 8 in this embodiment is a reduction motor. The spline nut is fixedly connected to the driving wheel assembly 10. The two driven wheel assemblies 9 are respectively fixedly installed with a left rolling ring mold 12 and a right rolling ring mold 13. The rolling die structure includes a rolling die 14. The left rolling ring mold 12 and the right rolling ring mold 13 are used to clamp the two sides of the rim 4 to be processed and cooperate with the rolling die 14 to perform external rotation forming on the rim 4 to be processed.

[0031] Preferably, the driving wheel assembly 10 includes a driving wheel, which is a driving gear; the driven wheel assembly 9 includes a driven wheel, which is a driven gear; the driving gear and the driven gear are meshed with each other, and the driving gear is fixedly sleeved on the spline nut.

[0032] The external rotation forming device has two motion mechanisms, namely, a slider driving mechanism that drives the slider to move horizontally and a rotating mechanism that drives the mold to rotate in a circular manner. The rotating mechanism uses a reduction motor as a driving source to transmit power to the spline shaft 11, which is then transmitted to the driving gear through the spline nut, and the driving gear is transmitted to the driven gear, thereby driving the left rolling ring mold 12 and the right rolling ring mold 13 installed on the driven wheel assembly 9 to rotate. Symmetrical spinning adopts spline shaft linkage, which has high load-bearing capacity, small degree of weakening of the shaft, and good rotation synchronization consistency.

[0033] The present invention adopts a symmetrical spinning process. For high-strength and difficult-to-deform materials, this symmetrical spinning process can make the materials at both ends be compressed point by point, with balanced force and uniform deformation, and the required total deformation force is small. During the spinning process, the spinning wheel not only has the effect of rolling the metal being spun, but also has the effect of flattening, so the surface finish of the product is high, so that the product can achieve higher dimensional accuracy and surface finish, obtain smaller runout error, and greatly reduce power consumption.

[0034] like Figure 2 As shown, the slider driving mechanism includes a first travel switch, a slide rail 15, two slider bottom plates 16 and two first hydraulic cylinders 17. The bottoms of the left slider 6 and the right slider 7 are fixedly mounted on the two slider bottom plates 16 respectively. The two slider bottom plates 16 are slidably connected to the slide rail 15 through a movable slider 18. The driving rods of the two first hydraulic cylinders 17 are respectively fixedly connected to the left slider 6 and the right slider 7 and are used to drive the left slider 6 and the right slider 7 to move horizontally closer to or away from each other along the slide rail 15. The left roller mold 12 and the right roller mold 13 are installed at the opposite positions of the upper ends of the left slider 6 and the right slider 7. The present invention is convenient for mold change, flexible to use, highly versatile and highly efficient.

[0035] The working process of the slider driving mechanism is as follows: first, the manipulator places the rim 4 to be processed on the roller ring positioning frame 2. When the first proximity switch senses that there is a rim 4 on the roller ring positioning frame 2, it generates a signal that the rim 4 is in place and feeds this signal back to the controller. The controller sends instructions to the two first hydraulic cylinders 17 and controls the two first hydraulic cylinders 17 to start working, respectively driving the left slider 6 and the right slider 7 to move relatively close to each other along the slide rail 15 horizontally. When moving to the set position, the first stroke switch electrically connected to the controller senses the roller ring mold in place signal and transmits this signal to the controller. The controller sends instructions to the two first hydraulic cylinders 17 and controls the two first hydraulic cylinders 17 to stop working. After the external rotation molding process is completed, the controller sends instructions to the two first hydraulic cylinders 17 and controls the two first hydraulic cylinders 17 to return, driving the left slider 6 and the right slider 7 to move away from each other horizontally along the slide rail 15.

[0036] The left slider 6 and the right slider 7 in the present invention both slide on high-rigidity slide rails, have low friction and precise positioning. The first hydraulic cylinders 17 on both sides synchronously push the left slider 6 and the right slider 7 to move, reducing the stroke of mold opening and closing, thereby reducing the mold opening and closing time and reducing the production cycle. The simultaneous action of the two first hydraulic cylinders 17 can reduce the required liquid pressure and reduce the uneven force at both ends of the workpiece, thereby effectively reducing the deformation difference at both ends of the workpiece and reducing the runout error.

[0037] like Figure 3 and Figure 4As shown, the rolling die structure includes a lever assembly, a second stroke switch and a second hydraulic cylinder 19. The lever assembly includes a support shaft 20 fixedly mounted on the frame 5 and a lever 21 rotatably connected to the support shaft 20. A rolling die 14 is mounted on one end of the lever 21. A guide rod 22 is fixedly connected to the other end of the lever 21. The guide rod 22 is fixedly connected to the driving rod of the second hydraulic cylinder 19. Vertical strip grooves 5a are provided on both sides of the frame 5. Both ends of the guide rod 22 are respectively located in the strip grooves 5a and can reciprocate back and forth along the strip grooves 5a. The second stroke switch is electrically connected to the controller. When the wheel rim 4 to be processed is placed on the roller ring positioning frame 2, the two first hydraulic cylinders 17 respectively drive the left slider 6 and the right slider 7 to move relatively close to each other along the slide rail 15 horizontally, so that the left slider 6 and the right slider 7 installed on the left slider 6 and the right slider 7 move relatively close to each other horizontally. The rolling die 12 and the right rolling die 13 clamp the rim 4 to be processed from the left and right sides, and the controller sends a command to control the second hydraulic cylinder 19 to start working. The driving rod of the second hydraulic cylinder 19 extends out to drive the guide rod 22 to move up along the strip groove 5a, and the lever 21 rotates counterclockwise around the support shaft 20. The end of the lever 21 on which the rolling die 14 is installed moves downward, gradually approaching and squeezing the rim 4 to be processed. When the second stroke switch senses that the rolling die 14 is in place and generates a rolling die in place signal, and transmits this signal to the controller, the controller sends a command to the driving source 8 and controls the driving source 8 to start working, driving the left rolling die 12 and the right rolling die 13 to rotate to drive the rim to be processed to rotate one circle, and the left rolling die 12 and the right rolling die 13 cooperate with the rolling die 14 to perform outward rotation forming on the rim to be processed.

[0038] like Figure 5As shown, the conveying device includes a roller positioning frame structure with a roller positioning frame 2, a shaping positioning frame structure with a shaping positioning frame 3 and a slideway 23, the roller positioning frame structure also includes a first positioning bracket 24, a first cylinder 25 and a first proximity switch, the first positioning bracket 24 is fixedly installed on the base 1 and the upper end is rotatably connected to the first rotating shaft 26, one end of the roller positioning frame 2 is fixedly connected to the first rotating shaft 26, and the other end of the roller positioning frame 2 is fixedly connected to the driving rod of the first cylinder 25; the shaping positioning frame structure also includes a second positioning bracket 27, a second cylinder 28 and a second proximity switch, the second The positioning bracket 27 is fixedly mounted on the base 1 and the upper end is rotatably connected to the second rotating shaft 29. One end of the shaping positioning bracket 3 is fixedly connected to the second rotating shaft 29, and the other end of the shaping positioning bracket 3 is fixedly connected to the driving rod of the second cylinder 28; the roller positioning bracket 2 includes a clamping plate 2a, and there are two clamping plates 2a and each clamping plate 2a has an upper end portion provided with an arc-shaped groove 2b for accommodating the rim 4. Preferably, the groove surface of the arc-shaped groove 2b in this embodiment is made of nylon, which is beneficial to improving wear resistance and flexibility of the mechanism, protecting the rim 4, and buffering the mechanism itself. The structure of the shaping positioning frame 3 is the same as that of the rolling ring positioning frame 2; the first proximity switch and the second proximity switch are both electrically connected to the controller, the first proximity switch is used to generate a rolling ring in place signal to the controller when the rim 4 to be processed is placed on the rolling ring positioning frame 2, and the second proximity switch is used to generate a shaping in place signal to the controller when the rim 4 after external rotation forming is placed on the shaping positioning frame 3; the first cylinder 25 and the second cylinder 28 are located between the first positioning bracket 24 and the second positioning bracket 27, the height of the rolling ring positioning frame 2 is higher than the height of the shaping positioning frame 3, and the rolling ring positioning frame 2 and the shaping positioning frame 3 are respectively located at the two ends of the slideway 23. After the external rotation forming of the rim 4 is completed, the controller controls the first cylinder 25 to work, the driving rod is retracted, the end of the rolling ring positioning frame 2 close to the slideway 23 tilts downward, and the rim 4 rolls from the rolling ring positioning frame 2 into the slideway 23 under the action of its own gravity and slides down along the slideway 23 to the shaping positioning frame 3, which saves time and effort and is convenient and fast. The principle of the rim 4 being cold-formed and delivered to the next process through the second cylinder 28 and other structures is the same as the operation of the first cylinder 25 and other structures. The present invention connects the external rotation forming device and the cold-formed shaping device through a conveying device, simplifies the production process, reduces material turnover, reduces the space occupied by the equipment, and optimizes the working environment.

[0039] like Figure 5 As shown, the frame 5 is also equipped with a stopper 30 for intercepting the rim 4 after the outward rotation molding coming down from the slideway 23 and positioning the rim 4 on the shaping and positioning frame 3. One end of the stopper 30 is fixedly connected to the frame 5, and the other end of the stopper 30 is located directly above the shaping and positioning frame 3. The stopper 30 not only blocks the rim 4, but also has a protective effect, ensuring the safety of the operator and eliminating potential safety hazards.

[0040] like Figure 6 As shown, the cold plastic shaping device includes a third travel switch and two side plates 31, two mold bottom plates 32 and two third hydraulic cylinders 33 respectively located on both sides of the shaping positioning frame 3. The two side plates 31 are fixedly mounted on the base 1 and four guide pillars 34 are fixedly connected between the two side plates 31 to ensure smooth operation. The left shaping mold 35 and the right shaping mold 36 are fixedly mounted on the two mold bottom plates 32 respectively. The two mold bottom plates 32 are slidably mounted on the four guide pillars 34 and can move back and forth along the four guide pillars 34 to achieve the relative approach or back-to-back distance between the left shaping mold 35 and the right shaping mold 36. The two hydraulic cylinders are respectively fixedly mounted on the two side plates 31. The two mold bottom plates 32 are respectively fixedly connected to the driving rods of the two hydraulic cylinders. The third travel switch is electrically connected to the controller and is used to generate a shaping mold in place signal to the controller when the left shaping mold 35 and the right shaping mold 36 are relatively close to each other.

[0041] Since the cold plastic shaping device adopts a horizontal structure, the third hydraulic cylinders 33 at both ends are actuated to apply pressure so that the shaping dies at both ends can move simultaneously, the action is precise, the hydraulic stroke is short, the forces at both ends of the workpiece are balanced, the shaping process time is saved, and the product forming effect is good. The rims manufactured by the present invention have consistent products, balanced forces, and precise dimensions, which effectively reduces the scrap rate and production costs.

[0042] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0043] Although the present invention uses more terms such as roller ring positioning frame 2, shaping positioning frame 3, frame 5, left slider 6, right slider 7, driving source 8, driven wheel assembly 9, driving wheel assembly 10, left roller ring mold 12, right roller ring mold 13, roller mold 14, slide rail 15, slider bottom plate 16, first hydraulic cylinder 17, support shaft 20, lever 21, shifting device 30, side plate 31, mold bottom plate 32, guide column 34, etc., it does not exclude the possibility of using other terms. These terms are used only to more conveniently describe and explain the essence of the present invention; interpreting them as any additional restrictions is contrary to the spirit of the present invention.

Claims

1. A rim spinning and shaping machine, comprising a base (1) and an external spinning forming device and a cold shaping device mounted on the base (1), characterized in that: The invention also comprises a controller and a conveying device installed on the base (1), wherein the conveying device comprises a roller ring positioning frame (2) located at the external rotation forming device and a shaping positioning frame (3) located at the cold plastic shaping device, wherein the roller ring positioning frame (2) and the shaping positioning frame (3) are both used to support the rim (4); the controller is used to control the external rotation forming device to perform external rotation forming on the rim (4) to be processed located on the roller ring positioning frame (2), to control the conveying device to automatically convey the externally rotated rim (4) located on the roller ring positioning frame (2) to the shaping positioning frame (3), and to control the cold plastic shaping device to perform positioning forming on the rim (4) to be processed located on the roller ring positioning frame (2). The rim (4) after outward rotation molding on the above-mentioned shaping and positioning frame (3) is subjected to cold plastic shaping. The conveying device comprises a roller ring positioning frame structure having the above-mentioned roller ring positioning frame (2), a shaping and positioning frame structure having the above-mentioned shaping and positioning frame (3) and a slideway (23). The roller ring positioning frame structure also comprises a first positioning frame (24), a first cylinder (25) and a first proximity switch. The first positioning frame (24) is fixedly mounted on the above-mentioned base (1) and the upper end is rotatably connected to a first rotating shaft (26). One end of the above-mentioned roller ring positioning frame (2) is fixedly connected to the first rotating shaft (26), and the other end of the roller ring positioning frame (2) is fixedly connected to the driving rod of the first cylinder (25). The positioning frame structure further comprises a second positioning frame (27), a second cylinder (28) and a second proximity switch, wherein the second positioning frame (27) is fixedly mounted on the base (1) and the upper end of the second positioning frame (27) is rotatably connected to a second rotating shaft (29), one end of the shaping positioning frame (3) is fixedly connected to the second rotating shaft (29), and the other end of the shaping positioning frame (3) is fixedly connected to a driving rod of the second cylinder (28); the roller positioning frame (2) comprises a clamping plate (2a), the clamping plates (2a) have two, and the upper end of each clamping plate (2a) is provided with an arc-shaped groove (2b) for accommodating the wheel rim (4), and the structure of the shaping positioning frame (3) is the same as that of the roller positioning frame (2); The first proximity switch and the second proximity switch are both electrically connected to the controller. The first proximity switch is used to generate a rolling ring in place signal to the controller when the rim (4) to be processed is placed on the rolling ring positioning frame (2), and the second proximity switch is used to generate a shaping in place signal to the controller when the rim (4) after external rotation forming is placed on the shaping positioning frame (3). The first cylinder (25) and the second cylinder (28) are located between the first positioning frame (24) and the second positioning frame (27). The height of the rolling ring positioning frame (2) is higher than the height of the shaping positioning frame (3), and the rolling ring positioning frame (2) and the shaping positioning frame (3) are respectively located at the two ends of the slideway (23).

2. The rim spinning and shaping machine according to claim 1, characterized in that: The external rotation forming device comprises a frame (5), a left slider (6), a right slider (7), a slider driving mechanism, a driving source (8), a transmission mechanism and a rolling die structure mounted on the frame (5); the transmission mechanism comprises two driven wheel assemblies (9), two driving wheel assemblies (10), a spline shaft (11) and two spline nuts; the two driven wheel assemblies (9) are mounted on the upper ends of the left slider (6) and the right slider (7), respectively; the two driving wheel assemblies (10) are mounted on the lower ends of the left slider (6) and the right slider (7) and are respectively connected to the rollers. The two spline nuts are sleeved on the spline shaft (11), the spline shaft (11) is fixedly connected to the driving source (8), the spline nut is fixedly connected to the driving wheel assembly (10), and the two driven wheel assemblies (9) are respectively fixedly mounted with a left rolling ring mold (12) and a right rolling ring mold (13), the rolling die structure comprises a rolling die (14), the left rolling ring mold (12) and the right rolling ring mold (13) are used to clamp the two sides of the rim (4) to be processed and cooperate with the rolling die (14) to perform external rotation molding on the rim (4) to be processed.

3. The rim spinning and shaping machine according to claim 2, characterized in that: The driving wheel assembly (10) comprises a driving wheel, which is a driving gear; the driven wheel assembly (9) comprises a driven wheel, which is a driven gear; the driving gear and the driven gear are meshed, and the driving gear is fixedly sleeved on the spline nut.

4. The rim spinning and shaping machine according to claim 2, characterized in that: The slider driving mechanism comprises a first travel switch, a slide rail (15), two slider base plates (16) and two first hydraulic cylinders (17). The bottoms of the left slider (6) and the right slider (7) are respectively fixedly mounted on the two slider base plates (16). The two slider base plates (16) are slidably connected to the slide rail (15) via a movable slider (18). The driving rods of the two first hydraulic cylinders (17) are respectively fixedly connected to the left slider (6) and the right slider (7) and are used to drive the left slider (6) and the right slider (7) to move horizontally closer to or away from each other along the slide rail (15). The first travel switch is electrically connected to the controller and is used to generate a roller mold in-place signal to the controller when the left roller mold (12) and the right roller mold (13) are relatively close to each other and in place. The left roller mold (12) and the right roller mold (13) are installed at opposite positions on the upper ends of the left slider (6) and the right slider (7).

5. The rim spinning and shaping machine according to claim 2, characterized in that: The rolling die structure comprises a lever assembly, a second travel switch and a second hydraulic cylinder (19); the lever assembly comprises a support shaft (20) fixedly mounted on a frame (5) and a lever (21) rotatably connected to the support shaft (20); the rolling die (14) is mounted on one end of the lever (21); the other end of the lever (21) is fixedly connected to a guide rod (22); the guide rod (22) is fixedly connected to a driving rod of the second hydraulic cylinder (19); vertical strip grooves (5a) are provided on both sides of the frame (5); the two ends of the guide rod (22) are respectively located in the strip grooves (5a) and can reciprocate along the strip grooves (5a); the second travel switch is electrically connected to the controller and is used to generate a rolling die (14) in place signal to the controller when the rolling die (14) presses the wheel rim (4) to be processed into place.

6. The rim spinning and shaping machine according to claim 1, characterized in that: The groove surface of the arc-shaped groove (2b) is made of nylon.

7. The rim spinning and shaping machine according to claim 5, characterized in that: The frame (5) is also provided with a stop device (30) for intercepting the rim (4) after outward rotation molding coming down from the slideway (23) and positioning the rim (4) on the shaping and positioning frame (3); one end of the stop device (30) is fixedly connected to the frame (5), and the other end of the stop device (30) is located directly above the shaping and positioning frame (3).

8. The rim spinning and shaping machine according to claim 1, characterized in that: The cold shaping device comprises a third travel switch and two side plates (31) respectively located on both sides of the shaping positioning frame (3), two mold bottom plates (32) and two third hydraulic cylinders (33), the two side plates (31) being fixedly mounted on the base (1) and four guide pillars (34) being fixedly connected between the two side plates (31), a left shaping mold (35) and a right shaping mold (36) being respectively fixedly mounted on the two mold bottom plates (32), and the two mold bottom plates (32) being slidably sleeved on the two sides. The left shaping die (35) and the right shaping die (36) are respectively fixed on the four guide pillars (34) and can move back and forth along the four guide pillars (34) to achieve relative approach or distance between the left shaping die (35) and the right shaping die (36), the two hydraulic cylinders are respectively fixedly mounted on the two side plates (31), the two mold bottom plates (32) are respectively fixedly connected to the driving rods of the two hydraulic cylinders, and the third travel switch is electrically connected to the controller and is used to generate a shaping die in place signal to the controller when the left shaping die (35) and the right shaping die (36) are relatively close to each other and in place.

9. The rim spinning and shaping machine according to claim 2, characterized in that: The driving source (8) is a reduction motor.

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