Spoke rim punching machine

Abstract

The invention discloses a spoke rim punching machine, and particularly relates to the technical field of rim punching, the spoke rim punching machine comprises a clamping device, a punching ejector pin, a servo driving motor and a lifting contact removing device; the rim is fixedly clamped on the clamping device, and the punching ejector pin is arranged above the rim; the servo driving motor is used for controlling the clamping device to rotate equidistantly and periodically; the lifting contact removing device comprises a lifting ejector pin cylinder, a warping plate, a lever wheel and a mounting plate; the servo driving motor and the lifting ejector pin cylinder are both installed on the warping plate, the lever wheel is fixedly installed at the end of the warping plate and rotationally connected with the installation plate, the output end of the lifting ejector pin cylinder penetrates through the warping plate to make contact with the installation plate, and the output end and the lever wheel are located at the two ends of the warping plate respectively. The spoke rim punching machine can drill spoke holes with different angles and numbers at the same time. Meanwhile, after drilling is completed, the position of the drilling face of the rim can be adjusted in the drilling work area, and therefore the drilling work efficiency is greatly improved.

Description

Technical Field

[0001] The present application relates to the technical field of rim punching, and in particular to a spoke rim punching machine. Background Art

[0002] The rim (commonly known as the wheel rim), as the core component of the wheel, needs to be punched to form valve holes, weight-reducing holes or structural holes to meet the needs of tire installation, lightweighting or heat dissipation.

[0003] The traditional wheel rim punching process has the following technical bottlenecks: (1) Existing equipment usually only supports a single spoke hole angle (such as 90°), while the spoke hole angle requirements of the wheel rim vary (such as 15°~85°). When processing non-standard angles, special equipment or tooling must be replaced, which has poor flexibility and increases costs. (2) After punching a group of holes, the existing equipment needs to be moved out of the drilling area, rotated to a specific angle, and then moved back into the drilling work area to perform the drilling work. The above process greatly prolongs the drilling time.

[0004] Therefore, designing a rim drilling equipment that can both improve drilling angle and shorten drilling time is an urgent issue to be solved in the production process. Summary of the Invention

[0005] The present invention provides a spoke rim punching machine that can simultaneously drill spoke holes of different angles and numbers. Furthermore, after drilling is completed, the position of the rim drilling surface can be adjusted within the drilling work area, thereby greatly improving the drilling efficiency.

[0006] The object of the present invention is achieved through the following technical solutions: A spoke rim punching machine comprises a clamping device, a punching ejector pin, a servo drive motor and a lifting and releasing device; The rim is fixedly clamped on the clamping device, and the punching ejector is arranged above the rim; the servo drive motor is used to control the equidistant and equicyclic rotation of the clamping device; The lifting and disengaging device includes a lifting pin cylinder, a rocker, a lever wheel and a mounting plate; the servo drive motor and the lifting pin cylinder are both installed on the rocker, the lever wheel is fixedly installed on the end of the rocker, the lever wheel and the mounting plate are rotatably connected, the output end of the lifting pin cylinder passes through the rocker and contacts the mounting plate, and the output end and the lever wheel are respectively located at both ends of the rocker.

[0007] Preferably, a rotating seat is provided on the upper end of the mounting plate, and a rotating groove is provided on the rotating seat for fitting the lower end of the lever wheel into and rotating therein.

[0008] Preferably, the spoke rim punching machine further comprises a body, the punching ejector is mounted on the body, a pad is provided on the body, a punching slot is provided at the upper end of the pad, and the rim is located between the pad and the punching ejector.

[0009] Preferably, the clamping device includes a fixed plate, a slide rail seat, a sliding block and an L-shaped claw; the fixed plate is fixedly mounted on the end of the output connection end of the servo drive motor, the slide rail seat is fixed on the fixed plate, and the sliding block is slidably mounted on the slide rail seat, and accordingly, a sliding groove is provided on the slide rail seat; the L-shaped claw is detachably mounted on the sliding block, the number of L-shaped claws is at least 3, and the rim is detachably clamped on the top end of the L-shaped claw.

[0010] Preferably, the fixed disk is provided with a connecting end, a side end of the connecting end is provided with a rotation groove, one end of the connecting rod is rotationally connected to the groove wall of the rotation groove, and the other end is rotationally connected to the sliding block.

[0011] Preferably, the L-shaped claw is provided with a fixed tooth at one end facing the slide rail seat, and correspondingly, the upper end of the sliding block is provided with a tooth engaged with the fixed tooth.

[0012] Preferably, the upper end of the L-shaped claw is provided with a fixing groove adapted to be embedded in the end edge of the rim.

[0013] Preferably, a support block is provided along the groove edge of the fixing groove.

[0014] Preferably, a slide rail groove is provided on the seesaw, and correspondingly, a sliding protrusion is provided at the lower end of the servo drive motor.

[0015] Preferably, a load-bearing platform is provided at the lower end of the mounting plate, and a supporting foot is screwedly installed below the load-bearing platform.

[0016] Compared with the prior art, the advantages or beneficial effects of the technical solution of this application include: 1. In existing equipment, if the wheel rim is rotated directly within the drilling area to adjust the position of the hole to be drilled, the inner end of the rim will rub against the supporting part it contacts, causing damage to the inner surface of the rim. Therefore, the present application provides a lifting and disengaging device, which causes the clamping device to lift the wheel rim upward, disengaging its inner side from the supporting part, and then driving the wheel rim to rotate, thus achieving non-destructive rotation of the wheel rim. During this process, the rim can be adjusted in angle without moving it out of the space between the punching pin and the supporting part, and the drilling task can be resumed, greatly reducing the drilling work efficiency.

[0017] 2. By adjusting the number and angle of punching pins, the corresponding number and angle of spoke holes can be drilled along the rim circumference, meeting the requirement of quick drilling in one go. This eliminates the need to repeatedly adjust the angle of a single punching pin, reducing drilling errors and improving drilling efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the three-dimensional structure of a spoke rim punching machine (right side view); Figure 2 A schematic diagram of the three-dimensional structure of a spoke rim punching machine (left side); Figure 3 It is a schematic diagram of the connection state between the clamping device and the rim; Figure 4 It is a three-dimensional structural diagram of the clamping device.

[0019] In the figure: 1. Body, 2. Punching ejector, 3. Fixed plate, 4. Output connection terminal, 5. Servo drive motor, 6. Rocker, 7. Slide groove, 8. Rotating seat, 9. Support foot, 10. Lever wheel, 11. Load-bearing platform, 12. Mounting plate, 13. Output terminal, 14. Ejector lifting cylinder, 15. Rim, 16. Slide seat, 17. Sliding block, 18. L-shaped claw, 19. Support block, 20. Connecting rod, 21. Connecting terminal. DETAILED DESCRIPTION

[0020] The following will describe the implementation methods of this application in detail with reference to the accompanying drawings and examples, so that the application can fully understand how technical means are used to solve technical problems and achieve corresponding technical effects, and implement them accordingly. The embodiments of this application and the various features therein can be combined with each other without conflict, and the resulting technical solutions are all within the scope of protection of this application.

[0021] It should be clear that the embodiments described below are only some of the embodiments of this application, rather than all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making any creative work are within the scope of protection of this application.

[0022] Example 1: This example describes in detail the scheme of the spoke rim punching machine: A spoke rim punching machine includes a body 1, a clamping device, a punching ejector 2, a servo drive motor 5, and a lifting and releasing device; a rim 15 is fixedly clamped on the clamping device, and the punching ejector 2 is arranged above the rim 15; the servo drive motor 5 is used to control the clamping device to rotate at equal intervals and periods; The lifting and disengaging device includes a lifting pin cylinder 14, a rocker 6, a lever wheel 10, and a mounting plate 12. The servo drive motor 5 and the lifting pin cylinder 14 are both mounted on the rocker 6. The lever wheel 10 is fixedly mounted at the end of the rocker 6. The lever wheel 10 and the mounting plate 12 are rotatably connected. The output end 13 of the lifting pin cylinder 14 passes through the rocker 6 and contacts the mounting plate 12. The output end 13 and the lever wheel 10 are respectively located at opposite ends of the rocker 6. The punching pin 2 is mounted on the fuselage 1. A pad is provided on the fuselage 1. The upper end of the pad has a punching slot. A rim 15 is located between the pad and the punching pin 2. The upper end of the mounting plate 12 has a rotating seat 8, which has a rotating slot that accommodates the lower end of the lever wheel 10.

[0023] like Figure 1 and Figure 2 As shown, when the ejector cylinder 14 is working, it applies force to the mounting plate 12 through the output end 13, so that the end of the rocker 6 is lifted upward. Similarly, the other end of the rocker 6 rotates downward, and rotation occurs between the lever wheel 10 and the rotating base 8.

[0024] When the end of rocker plate 6 is raised, it drives output connector 4 upward, which in turn lifts rim 15, which is fixed to the clamping device, and disengages the inner end surface of rim 15 from the spacer. At this point, servo drive motor 5 drives rim 15 to rotate at equal intervals, adjusting the undrilled end surface of the rim to align with punching pin 2. Drilling is then achieved by downward movement of punching pin 2 (principle of a pneumatic cylinder).

[0025] like Figure 3 and Figure 4 As shown, the clamping device includes a fixed plate 3, a slide rail seat 16, a sliding block 17 and an L-shaped claw 18; the fixed plate 3 is fixedly mounted on the end of the output connection terminal 4 of the servo drive motor 5, the slide rail seat 16 is fixed on the fixed plate 3, and the sliding block 17 is slidably mounted on the slide rail seat 16, and accordingly, a sliding groove is provided on the slide rail seat 16; the L-shaped claw 18 is detachably mounted on the sliding block 17, and the number of the L-shaped claws 18 is at least 3, and the rim 15 is detachably clamped on the top of the L-shaped claw 18.

[0026] The sliding block 17 is slidably mounted on the rail seat 16, facilitating adjustments for rims of varying diameters. The L-shaped claws 18 are also detachably connected to the sliding block 17, allowing for further fine-tuning of the rim diameter. The number of L-shaped claws 18 is at least three, and in this embodiment, six. These six claws are distributed around the rim 15 and securely hold it in place.

[0027] In order to synchronize the adjustment process of each sliding block 17, a connecting end 21 is provided on the fixed disk 3, and a rotating groove is provided at the side end of the connecting end 21. One end of the connecting rod 20 is rotatably connected to the groove wall of the rotating groove, and the other end is rotatably connected to the sliding block 17.

[0028] Among them Figure 4 As shown, the connecting end 21 is fixed to the end of the output connecting end 4. When the output connecting end 4 moves forward along the diameter of the fixed disk 3, the connecting rod 20 can drive the sliding block 17 to move forward or backward.

[0029] In this embodiment, a fixed tooth is provided on one end of the L-shaped claw 18 facing the rail seat 16 , and correspondingly, a tooth engaged with the fixed tooth is provided on the upper end of the sliding block 17 .

[0030] In this embodiment, the upper end of the L-shaped claw 18 is provided with a fixing groove adapted to fit into the end edge of the rim 15. A supporting block 19 is provided along the groove edge of the fixing groove.

[0031] In this embodiment, a slide rail groove 7 is provided on the rocker 6 , and correspondingly, a sliding protrusion is provided at the lower end of the servo drive motor 5 .

[0032] In this embodiment, a load-bearing platform 11 is provided at the lower end of the mounting plate 12 , and a support leg 9 is screwed and installed below the load-bearing platform 11 .

[0033] Example 2: Efficient mass production of spoke holes in electric motorcycle rims Scenario Requirements: An electric vehicle manufacturer needed to mass-produce rims with diameters ranging from 16 to 24 inches. The spoke hole angle required was 72° (to accommodate high-power motor torque transmission), and 64 holes (32 holes x 2 sides) needed to be punched per wheel. Traditional equipment, due to the fixed angle, required frequent tooling changes, and processing a single wheel took 30 minutes.

[0034] This equipment solution: Clamping and Adaptation: Adjust the six sliding blocks 17 (with L-shaped claws 18) on the rail base 16, and expand them synchronously through the connecting rod 20 to adapt to the diameter of a 24-inch rim. The support block 19 at the top of the L-shaped claw 18 is embedded in the inner edge of the rim. The fixed groove and support block structure ensure stable clamping.

[0035] Multi-angle punching: Four sets of punching pins 2 are installed on the top of the fuselage 1, with a punching angle of 72° set to complete the punching of four holes on one side at one time.

[0036] Efficient Angle Switching: The output end 13 of the lifting pin cylinder 14 applies force to the mounting plate 12. The rocker 6 leverages the inner wall of the rim by 0.5mm, clearing the contact surface of the pad. The servo drive motor 5 then precisely rotates the rim without moving it out of the work area.

[0037] Results: Daily wheel rim production increased from 160 to 480, with no wheel rim scratches (the traditional process has an 8% defect rate), and the dynamic balancing pass rate increased to 99.5%.

Claims

1. A spoke rim punching machine, characterized in that: It includes a clamping device, a punching ejector pin (2), a servo drive motor (5) and a lifting and releasing device; The rim (15) is fixedly clamped on the clamping device, and the punching ejector (2) is arranged above the rim (15); the servo drive motor (5) is used to control the equidistant and equiperiodic rotation of the clamping device; The lifting and disengaging device comprises a lifting pin cylinder (14), a rocker (6), a lever wheel (10) and a mounting plate (12); The servo drive motor (5) and the ejector pin raising cylinder (14) are both mounted on the seesaw (6), the lever wheel (10) is fixedly mounted on the end of the seesaw (6), the lever wheel (10) and the mounting plate (12) are rotatably connected, the output end (13) of the ejector pin raising cylinder (14) passes through the seesaw (6) and contacts the mounting plate (12), and the output end (13) and the lever wheel (10) are respectively located at both ends of the seesaw (6).

2. A spoke rim punching machine according to claim 1, characterized in that: A rotating seat (8) is provided at the upper end of the mounting plate (12), and a rotating groove is provided on the rotating seat (8) for fitting the lower end of the lever wheel (10) into which the lever wheel (10) is inserted for rotation.

3. The spoke rim punching machine according to claim 1, characterized in that: It also includes a machine body (1), the punching ejector (2) is mounted on the machine body (1), a pad is provided on the machine body (1), a punching slot is provided at the upper end of the pad, and the rim (15) is located between the pad and the punching ejector (2).

4. The spoke rim punching machine according to claim 1, characterized in that: The clamping device includes a fixed plate (3), a slide rail seat (16), a sliding block (17) and an L-shaped claw (18); The fixed plate (3) is fixedly mounted on the end of the output connection terminal (4) of the servo drive motor (5); the slide rail seat (16) is fixed on the fixed plate (3); the sliding block (17) is slidably mounted on the slide rail seat (16); and correspondingly, a sliding groove is provided on the slide rail seat (16); the L-shaped claw (18) is detachably mounted on the sliding block (17); the number of the L-shaped claws (18) is at least 3; and the rim (15) is detachably clamped on the top of the L-shaped claw (18).

5. The spoke rim punching machine according to claim 4, characterized in that: The fixed disk (3) is provided with a connecting end (21), which is fixed to the output connecting end (4) passing through the fixed disk (3). A rotating groove is provided at the side end of the connecting end (21), and one end of the connecting rod (20) is rotatably connected to the groove wall of the rotating groove, and the other end is rotatably connected to the sliding block (17).

6. The spoke rim punching machine according to claim 4, characterized in that: The L-shaped claw (18) is provided with a fixed tooth at one end facing the slide rail seat (16), and correspondingly, the upper end of the sliding block (17) is provided with a tooth engaged with the fixed tooth.

7. The spoke rim punching machine according to claim 4, characterized in that: The upper end of the L-shaped claw (18) is provided with a fixing groove adapted to be embedded in the end edge of the rim (15).

8. The spoke rim punching machine according to claim 7, characterized in that: A support block (19) is provided along the groove edge of the fixing groove.

9. The spoke rim punching machine according to claim 1, characterized in that: The seesaw (6) is provided with a slide rail groove (7), and correspondingly, the lower end of the servo drive motor (5) is provided with a sliding protrusion.

10. The spoke rim punching machine according to claim 1, characterized in that: A load-bearing platform (11) is provided at the lower end of the mounting plate (12), and a support foot (9) is screwed and mounted below the load-bearing platform (11).

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