Hub valve hole punching device

Abstract

The utility model provides a hub valve hole punching device which comprises a machine frame, a punch and a driving assembly driving the punch to move up and down are arranged at the upper end of the machine frame, a lower die and a material turning table are further arranged on the machine frame, the material turning table is hinged to the lower die, and an angle adjusting piece for fixing the material turning table is further arranged at the side end of the lower die. An internal expansion assembly for fixing a rim ring is further arranged on the material turning table, a forming hole matched with the punch is formed in the lower die, a waste runner communicated with the forming hole is further arranged on the inner side of the lower die, the angle of the material turning table is changed through hinge joint between the lower die and the material turning table, when an inclined hole needs to be punched, a workpiece can be turned over, and the punching efficiency is improved. Therefore, different types of rim rings are adapted, the limitation is small when the rim rings are designed, the workpiece is fixed through the internal expanding assembly, the workpiece is stably installed on the material overturning table, and the stamping position precision is guaranteed.

Description

Technical Field

[0001] The utility model relates to stamping equipment, in particular to a hub valve hole punching device. Background Art

[0002] At present, a Chinese patent with announcement number CN207872841U discloses a punching machine, including a frame, a workbench arranged on the frame, a slider arranged above the workbench, a punch arranged below the slider, and a transmission mechanism arranged on the workbench to drive the slider to move, and also includes a clamping mechanism arranged on the workbench, which clamps and punches the workpiece through the clamping mechanism.

[0003] like Figure 1 As shown, a wheel hub includes a rim ring 90, which is composed of an inner ring 91 and an oblique side ring 92. The workbench of the punch press cannot be turned over, and only the plane can be punched, resulting in that the valve hole can only be opened in the inner ring 91. When the valve hole needs to be opened in the oblique side ring 92, the punch press cannot punch it, which makes the design of the wheel hub have certain limitations. Utility Model Content

[0004] In view of this, the utility model aims to provide a wheel hub valve hole drilling device, which has the function of turning over the workpiece.

[0005] In order to solve the above technical problems, the technical solution of the utility model is: a wheel hub valve hole punching device, including a frame, a punch and a driving component for driving the punch to move up and down, the frame is also provided with a lower die and a turning table, the turning table is hingedly arranged on the lower die, and the side end of the lower die is also provided with an angle adjustment member for fixing the turning table, the turning table is also provided with an inner expansion component for fixing the wheel rim, the lower die is provided with a forming hole cooperating with the punch, and the inner side of the lower die is also provided with a waste flow channel connected with the forming hole

[0006] Through the above technical means, the angle of the turning table can be changed by the hinge between the lower die and the turning table. When it is necessary to punch an inclined hole, the workpiece can be flipped to adapt to different types of wheel rims. There are fewer limitations when designing wheel rims. The workpiece is fixed by the internal expansion component so that the workpiece can be stably installed on the turning table to ensure the stamping position accuracy.

[0007] Preferably, the turning table includes a table top and fixed ears arranged on both sides of the table top, a hinged rod is arranged on the fixed ear, the hinged rod is hinged to the lower mold, and the angle adjustment part includes a servo motor 1 arranged on the frame, and the output rod of the servo motor 1 is fixed to the hinged rod.

[0008] Through the above technical means, the turning table is driven by a servo motor to rotate, so as to achieve precise control of the turning angle of the turning table.

[0009] Preferably, the internal expansion component includes a pair of internal expansion rods, a slider is fixedly provided on the bottom side of the internal expansion rods, a sliding groove is provided on the table top, a mounting block is provided on the side wall of the sliding groove, the sliding groove and the mounting block cooperate to form a T-shaped groove, the slider is slidably connected to the sliding groove, a threaded hole is provided on the slider, a head bolt for fixing the position of the slider is provided in the threaded hole, and the outer side of the internal expansion rod is wrapped with a rubber layer.

[0010] Through the above-mentioned technical means, a T-slot is formed by the cooperation between the mounting block and the sliding groove, and the sliding of the inner expansion rod is realized through the cooperation between the T-slot and the slider, and the fixation of the slider is realized through the cooperation between the head bolt and the threaded hole, so as to adapt to wheel rims of different sizes. By wrapping a rubber layer on the outside of the inner expansion rod and fixing the wheel rim by the elasticity of the rubber, the wheel rim of the same size does not need to adjust the position of the slider during installation.

[0011] Preferably, the internal expansion component includes a pair of internal expansion rods and a servo motor 2 arranged in the table top, a screw is arranged on the output end of the servo motor 2, opposite threads are arranged on both sides of the screw, a sliding groove is opened on the table top, and a slider matching the sliding groove is arranged on the bottom side of the internal expansion rod, and the two sliders respectively cooperate with the threads on both sides of the screw.

[0012] Through the above technical means, the servo motor 2 drives the screw to rotate and drives the slider to move outward or inward at the same time, so as to achieve the locking of the rim ring and make the installation accuracy of the rim ring higher.

[0013] Preferably, a waste hopper is also provided at the side end of the frame, and the waste falling out of the waste flow channel falls into the waste hopper.

[0014] By means of the above technical means, stamping waste is guided and collected through the waste hopper and the waste flow channel, thereby facilitating the recycling of the waste.

[0015] Preferably, the lower mold includes a base and a forming mold, the forming mold is detachably connected to the base, the base and the forming mold are both provided with positioning holes, a positioning rod is arranged in the positioning hole, and the base and the forming mold are both provided with waste flow channels.

[0016] Through the above technical means, through the detachable connection between the base and the forming mold, when the rim ring has a special shape, it is convenient to replace the dedicated forming mold, and the installation accuracy of the forming mold is increased through the cooperation between the positioning rod and the positioning hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the structure of the wheel rim;

[0018] Figure 2It is a structural schematic diagram of embodiment 1;

[0019] Figure 3 This is a schematic diagram of a material turning table in Embodiment 1;

[0020] Figure 4 is a cross-sectional schematic diagram of the lower die;

[0021] Figure 5 A partial cross-sectional view of the second embodiment Figure 1 ;

[0022] Figure 6 A partial cross-sectional view of the second embodiment Figure 2 ;

[0023] Figure 7 This is a schematic diagram of the turning table of Example 2.

[0024] Figure numerals: 1, frame; 2, punch; 3, drive assembly; 4, lower die; 5, turning table; 6, angle adjustment member; 7, internal expansion assembly; 8, forming hole; 9, waste flow channel; 10, fixing ear; 11, hinged rod; 12, servo motor one; 13, internal expansion rod; 14, slider; 15, sliding groove; 16, mounting block; 17, head bolt; 18, rubber layer; 19, waste hopper; 20, base; 21, forming die; 22, positioning hole; 23, positioning rod; 24, servo motor two; 25, screw; 90, rim ring; 91, inner ring; 92, oblique side ring. DETAILED DESCRIPTION

[0025] The specific implementation modes of the present invention are further described below in conjunction with the accompanying drawings to make the technical solutions of the present invention easier to understand and grasp. Embodiment 1:

[0026] A wheel hub valve hole punching device includes a frame 1, a punch 2 and a driving component 3 for driving the punch 2 to move up and down are arranged on the upper end of the frame 1, the driving component 3 includes a crank rocker and a driving wheel, the driving wheel drives the crank rocker to move and drives the punch 2 to move up and down, a lower die 4 and a turning table 5 are also arranged on the frame 1, the turning table 5 is hingedly arranged on the lower die 4, and an angle adjustment member 6 for fixing the turning table 5 is also arranged on the side end of the lower die 4, an inner expansion component 7 for fixing a wheel rim 90 is arranged on the turning table 5, a forming hole 8 cooperating with the punch 2 is arranged on the lower die 4, and a waste flow channel 9 connected to the forming hole 8 is also arranged on the inner side of the lower die 4.

[0027] The turning table 5 includes a table top and fixed ears 10 arranged on both sides of the table top, a hinged rod 11 is passed through the fixed ears 10, the hinged rod 11 is fixed to the fixed ears 10 and is rotatably connected to the lower mold 4, and the angle adjustment member 6 includes a servo motor 12 fixedly arranged on the frame 1, and the output rod of the servo motor 12 is fixed to the hinged rod 11.

[0028] The inner expansion assembly 7 includes a pair of inner expansion rods 13, a slider 14 is fixedly arranged on the bottom side of the inner expansion rod 13, a sliding groove 15 is provided on the table top, and mounting blocks 16 are provided on the left and right inner walls of the sliding groove 15. The mounting blocks 16 are fixed by screws. The sliding groove 15 cooperates with the mounting blocks 16 to form a T-shaped groove. The slider 14 slides in the T-shaped groove. A threaded hole is provided on the slider 14, and a head bolt 17 for fixing the position of the slider 14 is provided in the threaded hole. When the slider 14 needs to be fixed When the wheel rim 90 is in the process of being punched, the inner ring 91 of the wheel rim 90 is pressed against the rubber on the inner expansion rod 13. The elasticity and friction of the rubber make the position of the wheel rim 90 relatively fixed. When processing the wheel rim 90 of the same size, the wheel rim 90 can be repeatedly fixed without adjusting the position of the slider 14.

[0029] A waste hopper 19 is also provided at the side end of the frame 1, and the waste falling off in the waste flow channel 9 falls into the waste hopper 19. The lower mold 4 includes a base 20 and a molding mold 21. The molding mold 21 is in a concave arc shape and is adapted to the shape of the rim ring 90. The molding mold 21 is detachably connected to the base 20. Positioning holes 22 are provided on the base 20 and the molding mold 21, and a positioning rod 23 is provided in the positioning hole 22. Waste flow channels 9 are provided in the base 20 and the molding mold 21. When the shape of the wheel hub is more special, it is convenient to replace the dedicated molding mold 21.

[0030] The processing process of the above-mentioned equipment is as follows: after determining the inner diameter of the rim and adjusting the distance between the inner expansion rods 13, the servo motor 12 drives the turning table 5 to rotate so that the turning table 5 is horizontal. At this time, the rim ring 90 to be processed is installed on the two expansion rods and pressed. After starting the machine, the servo motor 12 drives the turning table 5 to rotate the preset angle, and the driving component 3 drives the punch 2 to punch. At this time, the waste falls from the formed hole and falls into the waste hopper 19 from the waste flow channel 9. After the stamping is completed, the servo motor 12 drives the turning table to rotate to a horizontal state again to facilitate loading and unloading. Embodiment 2:

[0031] The inner expansion assembly 7 includes a pair of inner expansion rods 13 and a servo motor 24 arranged in the table. A screw 25 is arranged on the output end of the servo motor 24. Opposite threads are arranged on both sides of the screw 25. A sliding groove 15 is opened on the table. A slider 14 cooperating with the sliding groove 15 is arranged on the bottom side of the inner expansion rod 13. The two sliders 14 respectively cooperate with the threads on both sides of the screw 25. When the servo motor 24 drives the screw 25 to rotate forward, the two sliders 14 move away from each other. When the servo motor 24 drives the screw 25 to rotate reversely, the two sliders 14 approach each other, thereby completing the clamping and loosening of the rim ring 90.

[0032] Of course, the above are only typical examples of the present invention. In addition, the present invention may have many other specific implementations. Any technical solutions formed by equivalent replacement or equivalent transformation fall within the scope of protection required by the present invention.

Claims

1. A wheel hub valve hole punching device, comprising a frame (1), a punch (2) disposed at the upper end of the frame (1), and a driving assembly (3) for driving the punch (2) to move up and down, wherein: The frame (1) is also provided with a lower die (4) and a turning platform (5), the turning platform (5) is hingedly arranged on the lower die (4), the side end of the lower die (4) is also provided with an angle adjustment member (6) for fixing the turning platform (5), the turning platform (5) is also provided with an inner expansion component (7) for fixing the wheel rim (90), the lower die (4) is provided with a forming hole (8) cooperating with the punch (2), and the inner side of the lower die (4) is also provided with a waste flow channel (9) connected with the forming hole (8).

2. A wheel hub valve hole punching device according to claim 1, characterized in that: The material turning table (5) comprises a table top and fixed ears (10) arranged on both sides of the table top, a hinge rod (11) is arranged on the fixed ears (10), and the hinge rod (11) is hinged to the lower mold (4), and the angle adjustment member (6) comprises a servo motor (12) arranged on the frame (1), and the output rod of the servo motor (12) is fixed to the hinge rod (11).

3. A wheel hub valve hole punching device according to claim 2, characterized in that: The inner expansion assembly (7) comprises a pair of inner expansion rods (13), a slider (14) is fixedly arranged on the bottom side of the inner expansion rod (13), a sliding groove (15) is provided on the table top, a mounting block (16) is provided on the side wall of the sliding groove (15), the sliding groove (15) and the mounting block (16) cooperate to form a T-shaped groove, the slider (14) is slidably connected to the sliding groove (15), a threaded hole is provided on the slider (14), a head bolt (17) for fixing the position of the slider (14) is provided in the threaded hole, and the outer side of the inner expansion rod (13) is wrapped with a rubber layer (18).

4. A wheel hub valve hole punching device according to claim 2, characterized in that: The inner expansion component (7) comprises a pair of inner expansion rods (13) and a servo motor (24) arranged in the table top. A screw (25) is arranged on the output end of the servo motor (24). Opposite threads are arranged on both sides of the screw (25). A sliding groove (15) is opened on the table top. A slider (14) matching with the sliding groove (15) is arranged on the bottom side of the inner expansion rod (13). The two sliders (14) respectively match with the threads on both sides of the screw (25).

5. A wheel hub valve hole punching device according to claim 1, characterized in that: A waste hopper (19) is also provided at the side end of the frame (1), and waste falling out of the waste flow channel (9) falls into the waste hopper (19).

6. A wheel hub valve hole punching device according to claim 1, characterized in that: The lower mold (4) comprises a base (20) and a molding mold (21); the molding mold (21) is detachably connected to the base (20); a positioning hole (22) is provided on the base (20) and the molding mold (21); a positioning rod (23) is provided in the positioning hole (22); and a waste flow channel (9) is provided in the base (20) and the molding mold (21).

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