High-efficiency wheel rim punching equipment

Abstract

The utility model relates to the technical field of wheel rim punching, especially a high -efficiency wheel rim punching equipment, including punching equipment base and be located its upper punching cylinder and clamping disc, be equipped with first side plate and second side plate on punching equipment base, punching cylinder is located first side plate, be equipped with first cylinder rod on punching cylinder, be equipped with mounting seat on first cylinder rod, be equipped with punching seat and stud on mounting seat, be equipped with main punch head and vice punch head on punching seat, be equipped with clamping cylinder on second side plate, be equipped with second cylinder rod on clamping cylinder, be equipped with servo motor on second cylinder rod, be equipped with motor shaft and angle sensor on servo motor, be equipped with reinforcing rib between clamping disc and motor shaft. The punching efficiency of the punching equipment for riveting wheel rim is improved, the replaceability of the punching seat with main punch head and vice punch head on the punching equipment for riveting wheel rim is improved, and the symmetrical clamping stability for riveting wheel rim is improved.

Description

Technical Field

[0001] This utility model relates to the field of wheel rim punching technology, and in particular to a high-efficiency wheel rim punching device. Background Technology

[0002] There are many types of bicycle rims, among which the most common and classic is the riveted rim, which is still very prevalent in entry-level and everyday bicycles.

[0003] The basic production process of riveted bicycle rims is as follows: First, straight aluminum tubes are bent into an aluminum ring using a roller mold. Then, they are butt-welded. Next, they are heated and quenched, and then kept at a certain temperature for a period of time to improve the strength and hardness of the aluminum ring. Then, the aluminum ring is punched to create a circular main hole (this hole is used to pass through the spokes), and then a circular riveting hole is punched (so that the spoke caps can be inserted into the internal cavity of the rim). Finally, the riveted bicycle rims with punched holes can be anodized and then painted.

[0004] The specific punching process for the riveted wheel rim is as follows: First, the riveted wheel rim is clamped. Then, the main punch head on the punching equipment strikes the punching side wall groove of the riveted wheel rim at high speed, thus punching out a circular main hole in the punching side wall groove of the riveted wheel rim. Then, the clamped riveted wheel rim is rotated at a certain angle, and the main punch head punches out the next circular main hole. This cycle is repeated to form one punching operation group. Next, the riveted wheel rim is rotated to an adjacent position of the same initial station and aligned with the punching side wall groove of the riveted wheel rim. The auxiliary punch head on the punching equipment punches out a smaller circular riveting hole at an adjacent position of the first circular main hole. Later, it can be rotated at a certain angle again, and a circular riveting hole can be punched at an adjacent position of the next circular main hole. This cycle is repeated to form one punching operation group.

[0005] The above-mentioned punching efficiency for circular main holes and circular riveting holes is low, which greatly reduces the punching efficiency of punching equipment used for riveting wheel rims.

[0006] Therefore, we designed a high-efficiency punching machine for riveting bicycle rims to meet the needs of practical applications. Utility Model Content

[0007] The purpose of this invention is to address the aforementioned shortcomings in the existing technology by proposing a high-efficiency wheel punching device.

[0008] To achieve the above objectives, the present invention adopts the following technical solution: Design a high-efficiency wheel rim punching device, including a punching device base and a punching cylinder and a clamping plate disposed on the base. The punching device base is provided with a first side plate and a second side plate. The punching cylinder is disposed on the first side plate and is provided with a first cylinder rod. The first cylinder rod is provided with a mounting seat. The mounting seat is provided with a punching seat and a stud. The punching seat is provided with a main punching head and a secondary punching head. The second side plate is provided with a clamping cylinder and is provided with a second cylinder rod. The second cylinder rod is provided with a servo motor. The servo motor is provided with a motor shaft and an angle sensor. The punching seat has a threaded groove, the punching equipment base is equipped with a main controller and a riveting wheel, the riveting wheel is equipped with a punching sidewall groove, and the front face of the main controller is equipped with a control panel. A reinforcing rib is provided between the clamping disc and the motor shaft, and a rotating handle is provided on the stud.

[0009] In detail, the motor shaft and the clamping plate are a set, and there are two sets in total, which are symmetrical from left to right.

[0010] In detail, both the main punch head and the auxiliary punch head have an anti-wear layer on their outer wall surfaces.

[0011] In detail, the outer wall of the stud is fitted with an anti-loosening sleeve, and the stud passes through the mounting base and is threadedly connected to the threaded groove.

[0012] In detail, the rotating handle does not contact the outer wall surface of the first cylinder rod, and the rotating handle is provided with finger grooves, which are arc-shaped indentations and are arranged in a circle of seven.

[0013] In detail, the reinforcing ribs are triangular in shape and located between the clamping disc and the motor shaft, and there are eight reinforcing ribs arranged in a circle.

[0014] In detail, the clamping disc is a disc-shaped structure, and a protective pad is provided at the end of the clamping disc facing the riveting wheel.

[0015] The design scheme proposed in this utility model has the following beneficial effects in application: 1. This utility model sets symmetrical main punching heads and auxiliary punching heads on the base of the punching equipment, and then symmetrically sets clamping cylinders with synchronous servo motors and main controllers on the base of the punching equipment, and sets angle sensors on the synchronous servo motors. First, the riveting wheel is longitudinally and stably clamped, and then two sets of circular main holes and circular riveting holes are synchronously punched on the front and rear symmetrical surfaces of the punching side wall groove of the riveting wheel. Then, the clamped riveting wheel is controlled to rotate at a corresponding angle and stop, and two sets of circular main holes and circular riveting holes are synchronously punched again. By repeating this cycle for one and a half circles, a punching operation group can be completed for the current riveting wheel. Not only is it not necessary to perform a full circle of cyclic punching operation, but it is also not necessary to perform the complicated and time-consuming operation of punching circular main holes first and then punching circular riveting holes. Overall, it greatly improves the punching efficiency of the punching equipment for riveting wheels.

[0016] 2. This utility model, by setting a mounting seat with a stud on the first cylinder rod and a punching seat with a threaded groove, allows for the replacement of main punch heads and auxiliary punch heads with different outer diameters for different riveted wheel rims, thereby improving the applicability of the punching seat with main punch heads and auxiliary punch heads on the punching equipment for riveted wheel rims.

[0017] 3. This utility model improves the structural stability between the clamping plate and the motor shaft by arranging eight reinforcing ribs in a circular pattern between the clamping plate and the motor shaft of the servo motor, thereby improving the symmetrical clamping stability for riveted wheel rims. Attached Figure Description

[0018] Figure 1 This is a three-dimensional schematic diagram of the riveted wheel rim in an unclamped state and the mounting base in an uninstalled state, according to the present invention. Figure 2 For the present utility model Figure 1 A three-dimensional schematic diagram of a riveted wheel rim with perforated sidewall grooves; Figure 3 For the present utility model Figure 1 A first-person perspective perspective view of a mounting base with screw grooves; Figure 4 This is a three-dimensional schematic diagram of the riveted wheel rim in the clamped state and the mounting base in the installed state of the present invention. Figure 5 For the present utility model Figure 3 A second-view perspective three-dimensional schematic diagram of a mounting base with a main punch head and a secondary punch head; Figure 6 This is a block diagram of the present invention.

[0019] In the diagram: 1. Punching equipment base; 11. First side plate; 12. Second side plate; 13. Main controller; 14. Control panel; 2. Punching cylinder; 21. First cylinder rod; 3. Clamping plate; 31. Protective pad; 32. Reinforcing rib; 4. Clamping cylinder; 41. Second cylinder rod; 42. Servo motor; 43. Angle sensor; 44. Motor shaft; 5. Riveting rim; 51. Punching side wall groove; 6. Mounting seat; 61. Stud; 62. Rotary handle; 63. Finger groove; 64. Anti-loosening sleeve; 7. Punching seat; 70. Anti-wear layer; 71. Main punch head; 72. Secondary punch head; 8. Thread groove. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Reference Figures 1-6 A high-efficiency wheel rim punching device includes a punching device base 1 and a punching cylinder 2 and a clamping plate 3 disposed on the base 1. The punching device base 1 is provided with a first side plate 11 and a second side plate 12. The punching cylinder 2 is disposed on the first side plate 11. The punching cylinder 2 is provided with a first cylinder rod 21. The first cylinder rod 21 is provided with a mounting seat 6. The mounting seat 6 is provided with a punching seat 7 and a stud 61. The punching seat 7 is provided with a main punching head 71 and a secondary punching head 72. The second side plate 12 is provided with a clamping cylinder 4. The clamping cylinder 4 is provided with a second cylinder rod 41. The second cylinder rod 41 is provided with a servo motor 42. The servo motor 42 is provided with a motor shaft 44 and an angle sensor 43. The punching base 7 has a threaded groove 8, the punching equipment base 1 has a main controller 13 and a riveting wheel 5, the riveting wheel 5 has a punching side wall groove 51, and the front end face of the main controller 13 has a control panel 14. A reinforcing rib 32 is provided between the clamping plate 3 and the motor shaft 44, and a rotating handle 62 is provided on the stud 61.

[0022] It should be further noted that the motor shaft 44 and the clamping plate 3 are a group, and there are two groups in total that are symmetrical from left to right. The angle sensor 43 and servo motor 42 described in this patent are existing technologies. An angle rotation value can be preset on the control panel 14. Then, in conjunction with the main controller 13 with a preset PLC, the motor shaft 44 of the servo motor 42 can be synchronously controlled to rotate at a certain angle and stop.

[0023] It should be further noted that both the main punch head 71 and the auxiliary punch head 72 have an anti-wear layer 70 on their outer wall surfaces. The anti-wear layer 70 is a TiN titanium nitride coating. The Ti target material is vaporized by methods such as electric arc or magnetron sputtering, and then combined with the reactive gas N2 on the outer wall surfaces of the main punch head 71 and the auxiliary punch head 72 to form a thin film effect, which is the existing technology.

[0024] It should be further noted that the outer wall of the stud 61 is fitted with an anti-loosening sleeve 64. The anti-loosening sleeve 64 is made of vulcanized rubber, which has high elasticity, wear resistance and durability. When the stud 61 is threadedly locked with the threaded groove 8, the anti-loosening sleeve 64 between the handle 62 and the mounting base 6 will be squeezed and generate a lateral rebound force. This lateral rebound force acts on the stud 61, which improves the thread anti-loosening performance between the stud 61 and the threaded groove 8.

[0025] The stud 61 passes through the mounting base 6 and is threadedly connected to the screw groove 8, which enables the punching base 7, the main punching head 71, and the auxiliary punching head 72 to be replaced as a whole.

[0026] It should be further noted that the handle 62 does not contact the outer wall surface of the first cylinder rod 21, ensuring the effect of rotating the handle 62 and disassembling the punch seat 7 later.

[0027] The handle 62 has a finger groove 63, which is an arc-shaped indentation with seven grooves arranged in a circle. By inserting a finger into the finger groove 63, the stud 61 can be easily rotated.

[0028] It should be further noted that the reinforcing ribs 32 are triangular in shape and are located between the clamping plate 3 and the motor shaft 44. There are eight reinforcing ribs 32 arranged in a circle. The reinforcing ribs 32 are made of hard alloy steel, which has high strength and does not deform.

[0029] It should be further noted that the clamping disc 3 is a disc-shaped structure. The end of the clamping disc 3 facing the riveting wheel rim 5 is bonded with a protective pad 31 by epoxy resin. The protective pad 31 is made of nylon material, which has high strength, wear resistance and oil resistance, and avoids pinching damage to the surface of the riveting wheel rim 5.

[0030] Working method: The basic punching process is as follows: First, the riveted wheel rim 5 (i.e., the aluminum ring that has been heated and quenched, which is the existing technology) is placed between two clamping plates 3. Then, the clamping cylinder 4 is activated, and the second cylinder rod 41 extends, driving the two clamping plates 3 to move towards each other. When the two clamping plates 3 stably clamp the two end faces of the riveted wheel rim 5 through the preset protective pads 31, the clamping cylinder 4 is stopped. Then, the main controller 13 is activated. The PLC preset within the main controller 13 controls the activation of the two longitudinal punching cylinders 2, causing the first cylinder rod 21 to extend rapidly. Through the main punching head 71 and the auxiliary punching head 72 on the punching seat 7, two sets of circular main holes and circular riveting holes are simultaneously punched into the front and rear symmetrical surfaces of the punching side wall groove 51 of the riveting wheel rim 5. Next, the PLC preset within the main controller 13 controls the first cylinder rod 21 to retract and reset. Then, the PLC preset within the main controller 13 sends a signal to the angle sensor 43, which controls the axial rotation of the motor shafts 44 on both sides by a corresponding angle and stops. This causes the clamped riveting wheel rim 5 to rotate by a corresponding angle and stop. Then, the PLC preset within the main controller 13 activates the punching cylinders 2 again to perform the punching operation of the next set of circular main holes and circular riveting holes. This cycle repeats for one and a half circles, thus completing one punching operation group for the current riveting wheel rim 5. The above operation not only eliminates the need for a complete circular punching operation, but also eliminates the complex and time-consuming process of first punching out the main circular hole and then punching out the circular riveting hole, thus greatly improving the punching efficiency of the punching equipment for riveting wheel rims.

[0031] Furthermore, by rotating the handle 62 counterclockwise, the stud 61 rotates counterclockwise and exits the threaded groove 8, allowing the punch seat 7 with the main punch head 71 and auxiliary punch head 72 of the current outer diameter to be removed from the mounting base 6. Then, a punch seat 7 with the main punch head 71 and auxiliary punch head 72 of the appropriate punching outer diameter for the current riveted wheel rim 5 can be taken and reinstalled onto the mounting base 6 for later use in punching operations on the current riveted wheel rim 5. The main punch head 71 and auxiliary punch head 72 of different outer diameters can be replaced for different punching diameters of the riveted wheel rim 5 (the main punch head 71 and auxiliary punch head 72 are a matching set and are directly welded to the punch seat 7), improving the replaceability and applicability of the punch seat 7 with the main punch head 71 and auxiliary punch head 72 on the punching equipment for riveted wheel rim 5.

[0032] In addition, by arranging eight reinforcing ribs 32 in a circular pattern between the clamping plate 3 and the motor shaft 44 of the servo motor 42, the structural stability between the clamping plate 3 and the motor shaft 44 is improved, thereby improving the symmetrical clamping stability of the riveted wheel rim 5. The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A high-efficiency wheel rim punching device, comprising a punching device base (1) and a punching cylinder (2) and a clamping plate (3) disposed thereon, characterized in that: The punching equipment base (1) is provided with a first side plate (11) and a second side plate (12). The punching cylinder (2) is provided on the first side plate (11). The punching cylinder (2) is provided with a first cylinder rod (21). The first cylinder rod (21) is provided with a mounting seat (6). The mounting seat (6) is provided with a punching seat (7) and a stud (61). The punching seat (7) is provided with a main punching head (71) and a secondary punching head (72). The second side plate (12) is provided with a clamping cylinder (4). The clamping cylinder (4) is provided with a second cylinder rod (41). The second cylinder rod (41) is provided with a servo motor (42). The servo motor (42) is provided with a motor shaft (44) and an angle sensor (43). The punching seat (7) is provided with a screw groove (8), the punching equipment base (1) is provided with a main controller (13) and a riveting wheel (5), the riveting wheel (5) is provided with a punching side wall groove (51), and the front end face of the main controller (13) is provided with a control panel (14). A reinforcing rib (32) is provided between the clamping disc (3) and the motor shaft (44), and a rotating handle (62) is provided on the stud (61).

2. The high-efficiency wheel punching equipment according to claim 1, characterized in that: The motor shaft (44) and the clamping plate (3) are a set, and there are two sets in total that are symmetrical from left to right.

3. The high-efficiency wheel punching equipment according to claim 1, characterized in that: The outer walls of both the main punch head (71) and the auxiliary punch head (72) are provided with an anti-wear layer (70).

4. The high-efficiency wheel punching equipment according to claim 1, characterized in that: The outer wall of the stud (61) is fitted with an anti-loosening sleeve (64), and the stud (61) passes through the mounting base (6) and is threadedly connected to the screw groove (8).

5. The high-efficiency wheel punching equipment according to claim 1, characterized in that: The rotating handle (62) does not contact the outer wall surface of the first cylinder rod (21). The rotating handle (62) is provided with finger grooves (63), which are arc-shaped indentations and are arranged in a circle of seven.

6. The high-efficiency wheel punching equipment according to claim 1, characterized in that: The reinforcing ribs (32) are triangular in shape and are located between the clamping plate (3) and the motor shaft (44). There are eight reinforcing ribs (32) arranged in a circle.

7. The high-efficiency wheel punching equipment according to claim 1, characterized in that: The clamping disc (3) is a disc-shaped structure, and a protective pad (31) is provided at the end of the clamping disc (3) facing the riveted wheel rim (5).

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