An automated carbon fiber wheel manufacturing process

Abstract

This invention provides an automated carbon fiber wheel rim manufacturing process, belonging to the field of wheel rim manufacturing technology. It solves the problems of low efficiency, poor quality consistency, and insufficient process stability in existing wheel rim processing. This invention employs a dedicated pre-forming equipment, mainly comprising fixture one and fixture two. Fixture one is primarily used to bend flat and rod-shaped profiles and preliminarily assemble them into a basic ring structure (ring body one). Fixture two is used to further attach yarn sheets, add reinforcing round bars, install sealing plates, and assemble with the pre-made outer ring body, ultimately forming a complete wheel rim blank. The entire process, through the coordinated operation of multiple drive mechanisms, achieves automated processing of the wheel rim pre-form, improving production efficiency and molding accuracy.

Description

Technical Field

[0001] This invention relates to the field of wheel rim manufacturing technology, and in particular to an automated carbon fiber wheel rim manufacturing process. Background Technology

[0002] Carbon fiber composites are widely used in the manufacture of high-end bicycle, motorcycle, and automobile wheels due to their excellent properties such as high specific strength, high specific modulus, and fatigue resistance. Traditional carbon fiber wheel manufacturing relies heavily on manual lay-up and preforming, which involves manually laying and winding pre-cut carbon fiber prepreg (yarn sheets) on a mold, and reinforcing it with profiles such as round bars and sheets. This process has the following significant drawbacks:

[0003] 1. Low efficiency and high labor costs: A wheel rim often requires multiple layers of prepreg sheets and profiles of different shapes. The manual operation involves many steps, a long cycle, and requires skilled workers.

[0004] 2. Poor quality consistency: When laying by hand, it is difficult to accurately control the degree of compaction of the prepreg and the bending fit of the profile. It relies on the experience and feel of the workers, resulting in large dispersion of product performance and easy occurrence of local defects (such as pores and wrinkles).

[0005] 3. Insufficient process stability: When inserting round bars and other profiles into specific angled positions, it is not easy to uniform the magnitude and angle of manual force, which can easily cause loose bonding or damage to the prepreg structure, affecting the strength and reliability of the final product. Summary of the Invention

[0006] The main objective of this invention is to address the shortcomings of existing technologies by providing a highly automated carbon fiber wheel manufacturing process and pre-forming equipment that ensures good product consistency.

[0007] The objective of this invention can be achieved through the following technical solutions:

[0008] An automated carbon fiber wheel manufacturing process utilizes a pre-forming device, which includes fixture one and fixture two.

[0009] The fixture includes a frame, a ring-shaped mold rotatably mounted on the frame, and a drive mechanism for rotating the mold. The mold axis is horizontally positioned, and the inner wall of the mold has a raised forming part. The fixture also includes a retractable pressing member that retracts and extends to strike the profile, causing the profile to bend and deform and completely fit into the forming part to form a ring structure. The profile includes sheet metal and round bar. The mold is detachably mounted on the frame.

[0010] The second fixture includes a support frame and a clamping component mounted on the support frame for holding and fixing the mold. The mold axis is vertically oriented. The support frame is equipped with a second driving mechanism for driving the mold to rotate vertically. The support frame is also equipped with a third driving mechanism for driving the clamping component to rotate horizontally by 180°, so that the upper and lower ends of the mold face upwards, serving as a placement platform for placing the patch. The support frame is also equipped with a liftable support component located below the mold.

[0011] The wheel rim manufacturing process includes the following steps:

[0012] S1: Place the first sheet metal on the forming part of fixture one. The mold rotates and the sheet metal is struck by the pressure piece to bend it into a ring. The bent sheet metal has two arc grooves. Insert two round rods into the arc grooves in sequence and strike the round rods by the pressure piece to bend them into a ring and fit them against the sheet metal. Place the second sheet metal on the forming part and bend it to bend it into a ring and fit it against the first sheet metal. The two sheet metals and the two round rods are combined to form ring one.

[0013] S2: Remove the mold and the ring body on the mold from fixture one and install them on the clamping part of fixture two;

[0014] S3: Place the first piece of yarn on the placement platform and attach the yarn to the ring body; the three drive clamping parts of the drive mechanism rotate 180°, the support parts rise and abut against the yarn and press it tightly against the ring body, forming an angle between the patch and the ring body; the mold rotates and inserts a round rod into the angle, bending the round rod to fit it against the ring body, bending the round rod into a ring; the mold stops rotating and covers the angle with a ring-shaped sealing plate, attaching the two sides of the sealing plate to the yarn and the ring body respectively;

[0015] S4: Place the second piece of yarn on the placement platform and repeat step S3; one loop, two pieces of yarn, two round rods, and two sealing plates are combined to form loop two;

[0016] S5: Install the pre-processed outer ring body on the second ring body. The second ring body is inserted into the inner cavity of the outer ring body. The two inner side walls of the outer ring body are respectively attached and fixed to the two pieces of yarn on the second ring body. Bend the excess plates at both ends of the second ring body inward until they are attached to the outer wall of the outer ring body. Cover the outer circumference of the outer ring body with a collar. The second ring body, the outer ring body, and the collar are combined to form the wheel rim blank.

[0017] In the above-mentioned automated carbon fiber wheel manufacturing process, the fixture also includes a backing member, which is used to press the profile against the forming part at all times. The backing member includes a pressure roller and a drive member. The pressure roller is rotatably disposed at the end of the drive member. The drive member drives the pressure roller to translate towards the forming part so that the pressure roller presses the profile against the forming part.

[0018] In the aforementioned automated carbon fiber wheel manufacturing process, the drive component includes a translation cylinder 1 and a translation cylinder 2. The translation cylinder 2 is fixed at the end of the translation cylinder 1, and the pressure roller is rotatably mounted at the end of the translation cylinder 2 via a mounting base. The translation cylinder 1 is used to drive the pressure roller to move back and forth in a direction parallel to the mold axis, and the translation cylinder 2 is used to drive the pressure roller to move vertically up and down.

[0019] In the aforementioned automated carbon fiber wheel manufacturing process, the forming part includes a convex ring and grooves formed on both sides of the convex ring. There are two sets of pressing parts, each corresponding to one of the two grooves. The pressing parts include a rod and a second driving member. The outer end of the rod faces the groove, and the second driving member is used to drive the rod to move back and forth in the direction of inserting into the groove or moving away from the groove.

[0020] In the aforementioned automated carbon fiber wheel manufacturing process, the second drive component includes a third translation cylinder, with a rod fixed to the end of the third translation cylinder. The third translation cylinder is mounted on the frame via an adjustment mechanism to adjust the extension and retraction angle of the rod.

[0021] In the aforementioned automated carbon fiber wheel manufacturing process, the adjustment mechanism includes a support and an adjustment plate. A translation cylinder is fixedly mounted on the adjustment plate. The adjustment plate is rotatably mounted on the support via a rotating shaft. The support has an arc groove centered on the rotating shaft, and fasteners pass through the arc groove to fix it to the mounting plate. The support also has an adjustment slot, which allows the support to translate relative to the frame along the direction of the adjustment slot, so that the insert rod moves away from or closer to the groove.

[0022] In the aforementioned automated carbon fiber wheel manufacturing process, both drive mechanism one and drive mechanism two include a drive wheel, a mounting plate, a motor, and a translation cylinder four. The drive wheel is rotatably mounted on the mounting plate, the motor is fixed on the mounting plate and drives the drive wheel to rotate, and the translation cylinder four is used to drive the mounting plate and the drive wheel mounted on the mounting plate to translate, so that the drive wheel presses against the mold and drives the mold to rotate synchronously.

[0023] In the aforementioned automated carbon fiber wheel manufacturing process, the clamping components consist of two sets, divided into an active part and a passive part. Both the active and passive parts include a mounting base and two guide wheels. The two guide wheels on the passive part are rotatably mounted on the mounting base. The active part also includes a translation cylinder five, which is fixed on the mounting base. The guide wheels are rotatably mounted at the end of the translation cylinder five, and the translation cylinder five drives the guide wheels to translate. The guide wheels on the active part push the mold to press against the guide wheels of the passive part to form a clamping state. The passive part also includes support rollers, several of which are rotatably mounted on the mounting base, and the lower end face of the mold rests on the support rollers.

[0024] In the aforementioned automated carbon fiber wheel manufacturing process, the drive mechanism includes a rotary cylinder, which consists of two sets, each corresponding to a clamping component. The clamping components are fixed at the ends of the rotary cylinders, and the rotary cylinders drive the clamping components and the mold mounted on the clamping components to rotate horizontally by 180°.

[0025] In the aforementioned automated carbon fiber wheel manufacturing process, the support component includes a support plate, a mounting frame, and a translation cylinder six. The support plate is fixed on the mounting frame, and the mounting frame is vertically slidably mounted on the bracket via a slide rail. The translation cylinder six is ​​fixed on the bracket and is used to drive the mounting frame and the support plate to rise and fall vertically as a whole.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] 1. The previously scattered and manpower-dependent manual stacking and assembly steps are integrated into two automated fixtures. For example, difficult processes such as attaching and compacting the yarn sheets and embedding the round bars at complex angles are all performed automatically by the equipment, which greatly reduces the number of manual interventions and the production cycle, forming an assembly line operation;

[0028] 2. By precisely controlling the pressing force, bending angle, rotation position, and pressing time through actuators such as cylinders and motors, fluctuations caused by human factors are eliminated. This ensures that each layer of material is tightly bonded and the profile is bent in place, fundamentally improving the uniformity of the product structure and the stability of its mechanical properties.

[0029] 3. Automated equipment can reliably process "large sheets of thick yarn", replacing the traditional manual stacking of multiple thin sheets of yarn. This not only simplifies material management but also helps improve the overall quality of the final product.

[0030] 4. Complex manual skills are replaced by machine programs, reducing the skill requirements for operators. The entire process may only require a few people to handle material loading and unloading and equipment monitoring, significantly saving labor costs; Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the structure of the fixture of the present invention;

[0032] Figure 2 This is an enlarged schematic diagram of the abutment and the pressure member of the present invention;

[0033] Figure 3 This is an enlarged schematic diagram of the driving mechanism one of the present invention;

[0034] Figure 4 This is a schematic diagram of the structure of the second fixture of the present invention;

[0035] Figure 5 This is an enlarged schematic diagram of the active part of the clamping member of the present invention;

[0036] Figure 6 This is an enlarged schematic diagram of the passive portion of the clamping member of the present invention;

[0037] Figure 7 This is a schematic diagram of the structure of the first ring body of the present invention;

[0038] Figure 8 This is a schematic diagram of the structure of the second ring body of the present invention;

[0039] Figure 9 This is a schematic diagram of the structure of the wheel rim blank of the present invention;

[0040] Figure 10 This is an enlarged schematic diagram of the second driving mechanism of the present invention;

[0041] In the diagram, 1. Frame; 2. Mold; 3. Support; 4. Placement platform; 5. Sheet metal; 6. Round bar; 7. Yarn sheet; 8. Sealing plate; 9. Outer ring; 10. Collar; 11. Pressure roller; 12. Translation cylinder one; 13. Translation cylinder two; 14. Convex ring; 15. Groove; 16. Insert rod; 17. Translation cylinder three; 18. Support; 19. Adjusting plate; 20. Arc groove; 21. Adjusting long groove; 22. Drive wheel; 23. Mounting plate; 24. Motor; 25. Translation cylinder four; 26. Mounting seat; 27. Support wheel; 28. Translation cylinder five; 29. ​​Support roller; 30. Rotary cylinder; 31. Support plate; 32. Mounting frame; 33. Translation cylinder six. Detailed Implementation

[0042] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0043] The pre-forming equipment of this invention is mainly divided into two parts: fixture one and fixture two, wherein,

[0044] Fixture 1: Primarily used for bending and shaping profiles, such as... Figure 1 As shown, it includes a frame 1 and a mold 2 horizontally rotatably mounted on the frame 1. The mold 2 has a horizontal axis and an annular protrusion forming part on its inner wall. The forming part specifically includes a central convex ring 14 and two grooves 15 formed on both sides of the convex ring 14. The mold 2 can be driven to rotate by a drive mechanism.

[0045] To achieve automatic bending and fitting of the profiles, the fixture is equipped with the following key components:

[0046] Bracing components: Used to keep the profile pressed firmly against the forming part during bending. For example... Figure 2 As shown, it includes a pressure roller 11 and a drive component 1 for driving the pressure roller 11. The drive component 1 consists of a translation cylinder 12 and a translation cylinder 2 13. The translation cylinder 2 13 is fixed to the movable end of the translation cylinder 12, and the pressure roller 11 is rotatably mounted on the movable end of the translation cylinder 2 13 via a mounting base. The translation cylinder 12 drives the pressure roller 11 to move axially along the mold 2 to align the profile; the translation cylinder 2 13 drives the pressure roller 11 to move vertically up and down, thereby pressing the sheet metal 5 against the convex ring 14.

[0047] Pressing blanks: used to strike profiles and round bars to induce plastic bending deformation. For example... Figure 2 As shown, there are two sets of pressing components, each corresponding to one of the two grooves 15. Each set of pressing components includes an insert rod 16 and a second driving component that drives its movement. The second driving component is mainly a third translation cylinder 17, with the insert rod 16 fixed to the piston rod end of the third translation cylinder 17. The third translation cylinder 17 is mounted on the frame 1 via an adjustment mechanism. This adjustment mechanism includes a support 18 and an adjustment plate 19, with the third translation cylinder 17 fixed to the adjustment plate 19. The adjustment plate 19 is rotatably connected to the support 18 via a rotating shaft. The support 18 has an arc groove 20 centered on the rotating shaft, which is fixed to the adjustment plate 19 by fasteners (such as bolts) passing through the arc groove 20, thereby adjusting and locking the insertion angle of the insert rod 16. In addition, the bottom of the support 18 also has an adjustment groove 21, which is connected to the frame 1 via bolts, allowing the entire support 18 to move along the direction of the adjustment groove 21, thereby adjusting the distance between the end of the insert rod 16 and the inlet of the groove 15.

[0048] Drive mechanism 1: Used to drive mold 2 to rotate. For example... Figure 3 As shown, it includes a drive wheel 22, a mounting plate 23, a motor 24, and a translation cylinder 25. The motor 24 and drive wheel 22 are mounted on the mounting plate 23, and the motor 24 drives the drive wheel 22 to rotate. The cylinder body of the translation cylinder 25 is fixed to the frame 1, and its piston rod is connected to the mounting plate 23. It can drive the mounting plate 23 and drive wheel 22 to translate towards the mold 2 until the drive wheel 22 presses against the outer circumferential surface of the mold 2, using friction to drive the mold 2 to rotate synchronously. The mold 2 adopts a detachable design for easy transfer to the next workstation.

[0049] Fixture 2: Primarily used for further composite processing and assembly of ring body 1, such as... Figure 4 As shown, it includes a support 3 and a clamping member disposed on the support 3 for clamping and rotating the mold 2. When installed on the second fixture, the axis of the mold 2 becomes vertical.

[0050] The key structure of jig two is as follows:

[0051] Clamping components: There are two sets, divided into active and passive parts, which clamp the mold 2 from both sides. The two sets are basically symmetrical, each including a mounting base 26 and two guide wheels 27. Figure 6 As shown, the two guide wheels 27 of the passive part are directly rotatably mounted on the mounting base 26. Figure 5 As shown, the active part adds a translation cylinder 28, which is fixed on the mounting base 26. A guide wheel 27 is rotatably mounted on the end of its piston rod. The translation cylinder 28 drives the guide wheel 27 to move towards the mold 2, pressing the mold 2 between the two guide wheels 27 of the passive part, forming a stable clamping effect. Several support rollers 29 are also rotatably mounted on the mounting base 26 of the passive part. The lower end face of the mold 2 rests on these support rollers 29, which both bear the weight and facilitate the rotation of the mold 2.

[0052] Drive mechanism two: Its structure and principle are the same as drive mechanism one of fixture one, such as... Figure 10 As shown, it also includes a drive wheel 22, a mounting plate 23, a motor 24, and a translation cylinder 25. It is used to drive the clamped mold 2 to rotate about its vertical axis.

[0053] Drive mechanism three: used to drive the entire clamping component and mold 2 to rotate horizontally by 180°. It includes a rotary cylinder 30, the cylinder body of which is fixed on the bracket 3, and its rotation output shaft is fixedly connected to the mounting base 26 of the clamping component. Through the action of the rotary cylinder 30, the upper and lower end faces of the mold 2 can be alternately turned upwards, serving as a placement platform 4 for placing the yarn sheet 7.

[0054] Support component: Located directly below mold 2, used to support and clamp the workpiece from below during specific steps. It includes a support plate 31, a mounting bracket 32, and a translation cylinder 33. The support plate 31 is fixed to the mounting bracket 32, which is vertically slidably connected to the support 3 via a slide rail pair. The cylinder body of the translation cylinder 33 is fixed to the support 3, and the piston rod is connected to the mounting bracket 32, driving the support plate 31 to move vertically up and down as a whole.

[0055] The specific steps of the wheel rim manufacturing process of the present invention are as follows:

[0056] S1: Making the Circle Body

[0057] The first carbon fiber sheet 5 is laid flat on the protruding ring 14 of the mold 2 of fixture one. The drive mechanism one is activated, and the mold 2 begins to rotate slowly. Simultaneously, the pressure roller 11 of the abutment component, under the action of the drive mechanism one, presses the sheet 5 firmly onto the protruding ring 14. When the sheet 5 rotates with the mold 2 to the position of the pressing component, the translation cylinder three 17 drives the insertion rod 16 to quickly extend and strike the edge of the sheet 5, causing it to bend partially and embed into the corresponding groove 15. As the mold 2 continues to rotate and the pressing component periodically strikes, the entire sheet 5 is bent into a ring that fits against the inner wall of the mold 2, with its two sides embedded in two grooves 15, forming two arc grooves. Then, the first carbon fiber rod 6 is placed into one of the arc grooves. The mold 2 rotates again, and the insertion rod 16 of the pressing component strikes the rod 6, causing it to also bend into a ring and fit tightly against the arc groove of the formed first sheet 5. The second rod 6 is inserted and bent in the same way. Next, the second plate 5 is placed on the convex ring 14, and the bending process is repeated to form a ring that covers and adheres to the previous round rod 6 and the first plate 5. Finally, the two plates 5, sandwiching the two round rods 6, combine to form the first basic ring structure, called ring one (e.g., ...). Figure 7 (As shown).

[0058] S2: Mold Transfer

[0059] Loosen the fixing of the mold 2 on the fixture, remove the mold 2 with the ring body 1 from the frame 1 of the fixture, and then install it onto the clamping part of the fixture 2. The translation cylinder 5 28 is activated to clamp the mold 2. At this time, the axis of the mold 2 is vertical.

[0060] S3: Single-sided composite processing

[0061] Activate drive mechanism three, positioning the upper surface of mold 2 upwards as placement platform 4. Lay the first prepreg yarn sheet 7 flat on placement platform 4, initially adhering it to the upper surface of the lower ring body. Then, the rotary cylinder 30 of drive mechanism three actuates, driving the clamping component and mold 2 to rotate horizontally 180°, so that the lower surface of mold 2, which was originally downwards, is now upwards. Activate drive mechanism two, and mold 2 begins to rotate around its vertical axis. Simultaneously, the translation cylinder 33 of the support component drives the support plate 31 to rise, pressing the yarn sheet 7 firmly onto the ring body from below. Due to the thickness and flexibility of the yarn sheet 7, an angle naturally forms between its edge and one side wall of the ring body. As mold 2 rotates, the operator inserts a round rod 6 into this angle. As mold 2 rotates, the round rod 6 is guided by the side wall of the ring body and yarn sheet 7 and bent into a ring, tightly filling the angle. Mold 2 then stops rotating. A prefabricated annular sealing plate 8 is placed over the opening above this angled area, and its two sides are pressed and fixed to the upper surface of the yarn piece 7 and one side wall of the ring body, respectively.

[0062] S4: Composite processing on the other side

[0063] Repeat step S3, performing the same operation on the other end face of mold 2 (i.e., the currently downward-facing end face): place the second yarn piece 7, rotate the mold, press, insert and bend the second reinforcing rod 6, and cover with the second sealing plate 8. At this point, the initial ring body one, the two yarn pieces 7, the two newly added rods 6, and the two sealing plates 8 together form a more complex and stronger annular composite structure, called ring body two (e.g., ...). Figure 8 (As shown).

[0064] S5: Assemble the outer ring body

[0065] Remove ring 2 from mold 2 of fixture 2. Take a pre-processed carbon fiber outer ring 9 (U-shaped cross-section ring) and insert ring 2 into its inner cavity. Adjust the position so that the two inner sidewalls of outer ring 9 are respectively attached and fixed to the outer surfaces of the two yarn pieces 7 on ring 2. Finally, bend any excess plate parts at both ends of ring 2 (i.e., the initial two plates 5) inward to attach and fix them to the outer wall surface of outer ring 9. Wrap a layer of carbon fiber prepreg woven collar 10 around the outer periphery of outer ring 9 and cure it by heating and pressurizing. The collar 10 serves as the final overall covering, reinforcement, and aesthetic function. Ring 2, outer ring 9, and collar 10 are finally solidified into a complete carbon fiber wheel rim blank (e.g., Figure 9 As shown in the image, the finished product can be obtained after further finishing.

[0066] It should be understood that in the claims and description of this invention, all instances of "comprising..." should be understood as having an open meaning, that is, their meaning is equivalent to "containing at least...", and should not be understood as having a closed meaning, that is, their meaning should not be understood as "containing only...".

[0067] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

Claims

1. An automated carbon fiber wheel rim manufacturing process, utilizing a pre-forming device, wherein the pre-forming device includes fixture one and fixture two, wherein... The fixture includes a frame (1), an annular mold (2) rotatably mounted on the frame (1), and a drive mechanism for driving the mold (2) to rotate. The mold (2) has a horizontal axis and a raised forming part on its inner wall. The fixture also includes a retractable pressing member that retracts and extends back and forth to strike the profile, causing the profile to bend and deform and completely fit with the forming part to form an annular structure. The profile includes a plate (5) and a round bar (6). The mold (2) is detachably mounted on the frame (1). The second fixture includes a bracket (3) and a clamping component set on the bracket (3) for clamping and fixing the mold (2). The mold (2) is vertically oriented. The bracket (3) is provided with a second driving mechanism for driving the mold (2) to rotate vertically. The bracket (3) is also provided with a third driving mechanism for driving the clamping component to rotate horizontally by 180°, so that the upper and lower surfaces of the mold (2) face upwards as a placement platform (4) for placing the yarn. The bracket (3) is also provided with a liftable support component, which is located below the mold (2). The wheel rim manufacturing process includes the following steps: S1: Place the first plate (5) on the forming part of the fixture one. The mold (2) rotates and strikes the plate (5) with the pressure piece to bend the plate (5) into a ring. The bent plate (5) has two arc-shaped grooves. Insert two round rods (6) into the arc-shaped grooves in sequence. Strike the round rods (6) with the pressure piece to bend the round rods (6) into a ring and fit them against the plate (5). Place the second plate (5) on the forming part and bend it to bend the second plate (5) into a ring and fit it against the first plate (5). The two plates (5) and the two round rods (6) are combined to form the ring body one. S2: Remove the mold (2) and the ring body 1 on the mold (2) from the fixture 1 and install them on the clamping part of the fixture 2; S3: Place the first piece of yarn (7) on the placement platform (4) and attach the yarn (7) to the ring body one; drive mechanism three drives the clamping part to rotate 180°, the support part is raised to abut against the yarn (7) and press it tightly against the ring body one, forming an angle between the yarn and the ring body one, the mold (2) rotates, inserts a round rod (6) into the angle, bends the round rod (6) to attach it to the ring body one, and bends the round rod (6) into a ring; the mold (2) stops rotating, and covers the angle with a ring-shaped sealing plate (8), attaching the two sides of the sealing plate (8) to the yarn (7) and the ring body one respectively; S4: Place the second piece of yarn (7) on the placement platform (4) and repeat step S3; a ring body one, two pieces of yarn (7), two round rods (6), and two sealing plates (8) are combined to form a ring body two; S5: Install the pre-processed outer ring body (9) on the ring body two. The ring body two is inserted into the inner cavity of the outer ring body (9). The two inner side walls of the outer ring body (9) are respectively attached and fixed to the two pieces of yarn (7) on the ring body two. Bend the excess plates at both ends of the ring body two inward until they are attached to the outer wall of the outer ring body (9). Cover the outer periphery of the outer ring body (9) with a collar (10). The ring body two, the outer ring body (9), and the collar (10) are combined to form the wheel rim blank.

2. The automated carbon fiber wheel rim manufacturing process according to claim 1, characterized in that, The fixture also includes a backing member, which is used to press the profile against the forming part at all times. The backing member includes a pressure roller (11) and a drive member. The pressure roller (11) is rotatably disposed at the end of the drive member. The drive member drives the pressure roller (11) to translate in a direction closer to the forming part so that the pressure roller (11) presses the profile against the forming part.

3. The automated carbon fiber wheel rim manufacturing process according to claim 2, characterized in that, The driving component includes a translation cylinder one (12) and a translation cylinder two (13). The translation cylinder two (13) is fixed at the end of the translation cylinder one (12). The pressure roller (11) is rotatably mounted at the end of the translation cylinder two (13) via a mounting seat. The translation cylinder one (12) is used to drive the pressure roller (11) to move back and forth in a direction parallel to the axial direction of the mold (2). The translation cylinder two (13) is used to drive the pressure roller (11) to move vertically up and down.

4. The automated carbon fiber wheel rim manufacturing process according to claim 1, characterized in that, The forming part includes a convex ring (14) and grooves (15) formed on both sides of the convex ring (14). There are two sets of pressing parts corresponding to the two grooves (15) respectively. The pressing parts include a rod (16) and a second driving part. The outer end of the rod (16) faces the groove (15). The second driving part is used to drive the rod (16) to move back and forth in the direction of inserting into the groove (15) or away from the groove (15).

5. The automated carbon fiber wheel rim manufacturing process according to claim 4, characterized in that, The second driving component includes a translation cylinder three (17), and a rod (16) is fixed at the end of the translation cylinder three (17). The translation cylinder three (17) is mounted on the frame (1) through an adjustment mechanism to adjust the extension angle of the rod (16).

6. The automated carbon fiber wheel rim manufacturing process according to claim 5, characterized in that, The adjustment mechanism includes a support (18) and an adjustment plate (19). A translation cylinder (17) is fixed on the adjustment plate (19). The adjustment plate (19) is rotatably mounted on the support (18) via a rotating shaft. An arc groove (20) with the rotating shaft as the center is provided on the support (18). The support (18) is fixedly connected to the adjustment plate (19) through the arc groove (20) by fasteners. An adjustment long groove (21) is also provided on the support (18). The support (18) can be translated relative to the frame (1) along the direction of the adjustment long groove (21) so that the insertion rod (16) moves away from or closer to the groove (15).

7. The automated carbon fiber wheel rim manufacturing process according to claim 1, characterized in that, Both drive mechanism one and drive mechanism two include a drive wheel (22), a mounting plate (23), a motor (24), and a translation cylinder four (25). The drive wheel (22) is rotatably mounted on the mounting plate (23). The motor (24) is fixed on the mounting plate (23) and drives the drive wheel (22) to rotate. The translation cylinder four (25) is used to drive the mounting plate (23) and the drive wheel (22) mounted on the mounting plate (23) to translate, so that the drive wheel (22) presses against the mold (2) and drives the mold (2) to rotate synchronously.

8. The automated carbon fiber wheel rim manufacturing process according to claim 1, characterized in that, The clamping components are divided into two sets, namely an active part and a passive part. Both the active part and the passive part include a mounting base (26) and two guide wheels (27). The two guide wheels (27) on the passive part are rotatably mounted on the mounting base (26). The active part also includes a translation cylinder five (28), which is fixed on the mounting base (26). The guide wheels (27) are rotatably mounted at the end of the translation cylinder five (28). The translation cylinder five (28) drives the guide wheels (27) to translate. The guide wheels (27) on the active part push the mold (2) to press against the guide wheels (27) of the passive part to form a clamping state. The passive part also includes support rollers (29), which are rotatably mounted on the mounting base (26). The lower end face of the mold (2) is placed on the support rollers (29).

9. The automated carbon fiber wheel rim manufacturing process according to claim 1, characterized in that, The driving mechanism includes a rotary cylinder (30), which has two sets, corresponding to two sets of clamping components respectively. The clamping components are fixed at the ends of the rotary cylinder (30), and the rotary cylinder (30) drives the clamping components and the mold (2) set on the clamping components to rotate horizontally by 180°.

10. The automated carbon fiber wheel rim manufacturing process according to claim 1, characterized in that, The support components include a support plate (31), a mounting frame (32), and a translation cylinder (33). The support plate (31) is fixed on the mounting frame (32), and the mounting frame (32) is vertically slidably mounted on the bracket (3) via a slide rail. The translation cylinder (33) is fixed on the bracket (3) and is used to drive the mounting frame (32) and the support plate (31) to rise and fall vertically as a whole.

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