Flaring die for wheel rim

Abstract

The utility model relates to the technical field of dies, in particular to a flaring die for a wheel rim, which comprises a forming die, the top end of the forming die is fixedly connected with an inner limiting column, the bottom end of the forming die is fixedly connected with a connecting disc, and the top end of the connecting disc is detachably connected with an outer limiting ring. The outer limiting ring surrounds the forming mold and the inner limiting column, the outer limiting ring, the forming mold and the inner limiting column are spaced by the thickness of one rim, the bottom end of the outer limiting ring is fixedly connected with a connecting block, and the surface of the connecting block is connected with a connecting insertion plate capable of horizontally sliding; the flaring device for the rim of the automobile engine aims at solving the problems that when flaring is conducted on the rim, the rim is prone to deviation, and therefore the rim is prone to size deviation and irregular in shape in the die casting process, and the flaring device for the rim of the automobile engine engine aims at solving the problems that when flaring is conducted on the rim, the rim is prone to deviation.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a flaring mold for a wheel rim. Background Art

[0002] The rim, commonly known as the wheel rim, is a component that mounts and supports the tire around the wheel and forms a wheel with the spokes. The rim processing technology generally includes shearing, rolling, welding, flaring, forming, expanding, sorting, and inspection. Rim flaring is the process of die-casting the rim using a mold and hydraulic equipment, so that the rim is continuously stretched along the mold, and the rim diameter is continuously expanded, thereby achieving rim flaring.

[0003] When the rim is die-cast and expanded through a mold, the rim is easily offset during expansion due to the die-casting process, which can cause the rim to have size deviation, irregular shape and other problems during die-casting. Therefore, it is necessary to design a flaring mold for the wheel rim to improve the movement accuracy and stability of the rim during the expansion process. Utility Model Content

[0004] The purpose of the utility model is to provide a flaring die for a wheel rim, so as to solve the problem that the rim is easily offset when the rim is flared, thereby causing size deviation and irregular shape of the rim during die casting.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A flaring mold for a wheel rim includes a forming mold, the top end of the forming mold is fixedly connected to an inner limit column, the bottom end of the forming mold is fixedly connected to a connecting disk, the top end of the connecting disk is detachably connected to an outer limit ring, the outer limit ring surrounds the forming mold and the inner limit column, the outer limit ring is spaced apart from the forming mold and the inner limit column by the thickness of a rim, the bottom end of the outer limit ring is fixedly connected to a connecting block, the surface of the connecting block is connected to a horizontally slidable connecting plug plate, and the surface of the connecting disk is provided with a connecting slot for the connecting plug plate to be embedded.

[0007] Preferably, a vertically arranged positioning rod is fixedly connected to the surface of the connecting disk, and a positioning groove for the positioning rod to be embedded in is formed at the bottom end of the outer limiting ring.

[0008] Preferably, the surface of the connecting block is fixedly connected to a limit slider, and the surface of the connecting plug plate is cooperatively provided with a first sliding groove for the limit slider to slide horizontally.

[0009] Preferably, a stamping mechanism is installed on the top end of the outer limiting ring, and a supporting mechanism is installed on the surface of the outer limiting ring.

[0010] Preferably, the stamping mechanism includes a suspension frame, a hydraulic telescopic rod and a stamping plate, the suspension frame is fixedly connected to the top end of the outer limit ring, the hydraulic telescopic rod is installed on the surface of the suspension frame, the stamping plate is installed on the telescopic end of the hydraulic telescopic rod, and the stamping plate is located between the suspension frame and the outer limit ring.

[0011] Preferably, the support mechanism includes a support frame and a positioning frame, the support frame is installed on the surface of the outer limit ring, the positioning frame is connected to the surface of the support frame by sliding up and down, the positioning frame is used to support the connecting plate, and the surface of the connecting plug plate has a gap to avoid the support frame when moving.

[0012] Preferably, the surface of the support frame is provided with a second sliding groove for the adjustment frame to move up and down, and the surface of the support frame is rotatably connected to a vertically arranged threaded rod, the threaded rod movably passes through the surface of the adjustment frame, and the threaded rod and the adjustment frame are threadedly connected.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. By providing the inner limiting post and the outer limiting ring, during die-casting, the rim is located between the outer limiting ring and the forming die and the inner limiting post. The forming die and the inner limiting post are close to the inner ring of the rim, which helps prevent the rim from sinking inward during die-casting. The outer limiting ring is close to the outer ring of the rim, which helps prevent the rim from bulging outward during die-casting. It can prevent the rim from shifting when the die-cast rim is flared, improve the movement accuracy and stability of the rim during the flaring process, and thus reduce the occurrence of dimensional deviation and irregular shape of the rim during die-casting;

[0015] 2. By setting up a positioning frame that can move up and down, when the connecting plate is moved out of the connecting slot, the positioning frame can be moved up and down to control the connection plate, the forming mold, and the inner limit column to move up and down, thereby realizing automatic lifting of the forming mold and the inner limit column, which is conducive to solving the problem of manually lifting the forming mold and the inner limit column. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the mold of the utility model;

[0017] Figure 2 This is a schematic diagram of the overall vertical section of the mold of the utility model;

[0018] Figure 3 This is a schematic diagram of the vertical section of the outer limit ring of the utility model;

[0019] Figure 4 This is a schematic structural diagram of the connection between the positioning rod, connecting plate, forming die and inner limit column of the utility model;

[0020] Figure 5 This is a schematic diagram of the cross-section structure of the connecting disk and the connecting plug board of the utility model;

[0021] Figure 6 This is a structural diagram of the utility model mold in a supported state;

[0022] Figure 7 This is a schematic structural diagram of the punching mechanism of the utility model;

[0023] Figure 8 This is a schematic structural diagram of the support mechanism of the utility model;

[0024] Figure 9 This is a schematic structural diagram of a vertical section of the support frame of the present invention.

[0025] In the figure: 1. Outer limit ring; 2. Positioning groove; 3. Positioning rod; 4. Connecting plate; 5. Forming mold; 6. Inner limit column; 7. Connecting slot; 8. Connecting plug plate; 9. First slide; 10. Limit slider; 11. Connecting block; 12. Hanging frame; 13. Hydraulic telescopic rod; 14. Stamping plate; 15. Support frame; 16. Second slide; 17. Threaded rod; 18. Positioning frame; 19. Motor. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] See also Figures 1 to 5 , the utility model provides a technical solution:

[0028] A flaring die for a wheel rim comprises a forming die 5, the top end of the forming die 5 is fixedly connected to an inner limiting post 6, by arranging the inner limiting post 6, the inner limiting post 6 is close to the inner ring of the rim, which is beneficial to preventing the rim from sinking inward during die-casting, so the bottom end of the forming die 5 is fixedly connected to a connecting plate 4, the top end of the connecting plate 4 is detachably connected to an outer limiting ring 1, the outer limiting ring 1 surrounds the forming die 5 and the inner limiting post 6, and there is a rim thickness between the outer limiting ring 1 and the forming die 5 and the inner limiting post 6, by arranging the outer limiting ring 1, the outer limiting ring 1 is close to the outer ring of the rim, which is beneficial to preventing the rim from bulging outward during die-casting, and by arranging the inner limiting post 6 and the outer limiting ring 1, the wheel can be prevented from sinking inward during die-casting when the die-casting rim is flared. The rim is offset, which improves the movement accuracy and stability of the rim during the expansion process, thereby reducing the size deviation and irregular shape of the rim during die-casting. The bottom end of the outer limit ring 1 is fixedly connected to a connecting block 11, and the surface of the connecting block 11 is connected to a horizontally slidable connecting plug plate 8. The surface of the connecting disk 4 is equipped with a connecting slot 7 for the connecting plug plate 8 to be embedded. By setting the connecting plug plate 8, when the connecting plug plate 8 is embedded in the connecting slot 7, the outer limit ring 1 is connected to the forming mold 5 and the inner limit column 6 as a whole, which is convenient for die-casting. When the connecting plug plate 8 is moved out of the connecting slot 7, the forming mold 5 and the inner limit column 6 can be moved downward to separate from the outer limit ring 1, which is conducive to the convenient removal of the expanded rim.

[0029] The surface of the connecting plate 4 is fixedly connected with a vertically arranged positioning rod 3, and the bottom end of the outer limit ring 1 is provided with a positioning groove 2 for the positioning rod 3 to be embedded. When the outer limit ring 1 surrounds the forming mold 5 and the inner limit column 6, the positioning rod 3 is embedded in the positioning groove 2, and the relative position between the outer limit ring 1 and the forming mold 5 and the inner limit column 6 is fixed, which is conducive to ensuring that the gap between the outer limit ring 1 and the forming mold 5 and the inner limit column 6 remains unchanged.

[0030] The surface of the connecting block 11 is fixedly connected to the limit slider 10, and the surface of the connecting plug plate 8 is provided with a first sliding groove 9 for the limit slider 10 to slide horizontally. The limit slider 10 slides in the first sliding groove 9, so that the connecting plug plate 8 can be embedded in or removed from the connecting slot 7.

[0031] See also Figures 6 to 9 A stamping mechanism is installed on the top of the outer limit ring 1, and a supporting mechanism is installed on the surface of the outer limit ring 1. The supporting mechanism is used to support the entire mold, and the stamping mechanism is used to stamp the rim on the mold.

[0032] The stamping mechanism includes a hanger 12, a hydraulic telescopic rod 13 and a stamping plate 14. The hanger 12 is fixedly connected to the top of the outer limit ring 1, the hydraulic telescopic rod 13 is installed on the surface of the hanger 12, and the stamping plate 14 is installed at the telescopic end of the hydraulic telescopic rod 13. The stamping plate 14 is located between the hanger 12 and the outer limit ring 1. By starting the hydraulic telescopic rod 13 to extend, the stamping plate 14 is driven to press down.

[0033] The supporting mechanism includes a supporting frame 15 and a positioning frame 18. The supporting frame 15 is installed on the surface of the outer limit ring 1. The positioning frame 18 is connected to the surface of the supporting frame 15 by sliding up and down. The positioning frame 18 is used to support the connecting plate 4. The surface of the connecting plug-in plate 8 has a gap to avoid the supporting frame 15 when moving, ensuring that the installed supporting frame 15 will not affect the horizontal sliding of the connecting plug-in plate 8. The horizontal movement of the connecting plug-in plate 8 can be achieved by directly manually pulling the connecting plug-in plate 8 to move, or by using techniques familiar to those skilled in the art to move the connecting plug-in plate 8.

[0034] The surface of the support frame 15 is equipped with a second slide groove 16 for the adjustment frame 18 to move up and down. The surface of the support frame 15 is rotatably connected with a vertically arranged threaded rod 17. The threaded rod 17 movably penetrates the surface of the adjustment frame 18, and the threaded rod 17 and the adjustment frame 18 are threadedly connected. By rotating the threaded rod 17, the adjustment frame 18 can be driven to move up and down along the track of the second slide groove 16. When the connecting plug plate 8 moves out of the connecting slot 7, the adjustment frame 18 can be moved up and down to control the connection plate 4, the forming mold 5, and the inner limit column 6 to move up and down, thereby automatically lifting the forming mold 5 and the inner limit column 6 up and down, which is conducive to solving the problem that manual lifting of the forming mold 5 and the inner limit column 6 is more troublesome. A motor 19 is installed at the top of the support frame 15, and the output end of the motor 19 is coaxially fixedly connected to the threaded rod 17. The threaded rod 17 is driven to rotate by starting the motor 19.

[0035] The specific scheme is as follows: first, the rim is placed between the outer limit ring 1 and the inner limit column 6, and then the hydraulic telescopic rod 13 is started to extend, driving the stamping plate 14 to press the rim down, and the rim is pressed down and passed between the outer limit ring 1 and the forming mold 5, and is expanded and formed by the forming mold 5. After the expansion is completed, the connecting plug plate 8 is manually pulled to move horizontally, so that the limiting slider 10 moves along the track of the first slide groove 9 until the connecting plug plate 8 moves out of the connecting slot 7, and then the motor 19 is started to drive the threaded rod 17 to rotate, so that the adjusting frame 18 moves downward along the track of the second slide groove 16, so that the connecting plate 4, the forming mold 5, and the inner limit column 6 also move downward, and stop when it moves to the point where the rim can be removed from the forming mold 5 and the inner limit column 6. Then the rim can be removed, and the adjusting frame 18 is raised again, so that the forming mold 5 and the inner limit column 6 move back to the inner ring of the outer limit ring 1 to expand the next rim. When the hydraulic telescopic rod 13 and the motor 19 are selected, conventional selections can be made in the existing technology as needed.

[0036] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wheel rim expansion die, comprising a forming die (5), characterized in that: The top end of the forming mold (5) is fixedly connected to an inner limiting column (6), so the bottom end of the forming mold (5) is fixedly connected to a connecting disk (4), the top end of the connecting disk (4) is detachably connected to an outer limiting ring (1), the outer limiting ring (1) surrounds the forming mold (5) and the inner limiting column (6), and there is a rim thickness between the outer limiting ring (1) and the forming mold (5) and the inner limiting column (6), the bottom end of the outer limiting ring (1) is fixedly connected to a connecting block (11), the surface of the connecting block (11) is connected to a horizontally slidable connecting plug plate (8), and the surface of the connecting disk (4) is provided with a connecting slot (7) for the connecting plug plate (8) to be embedded.

2. A wheel rim expansion die according to claim 1, characterized in that: A vertically arranged positioning rod (3) is fixedly connected to the surface of the connecting disk (4), and a positioning groove (2) for the positioning rod (3) to be embedded is provided at the bottom end of the outer limiting ring (1).

3. The wheel rim expansion die according to claim 1, wherein: The surface of the connecting block (11) is fixedly connected to a limiting slider (10), and the surface of the connecting plug plate (8) is provided with a first sliding groove (9) for the limiting slider (10) to slide horizontally.

4. The wheel rim expansion die according to claim 1, characterized in that: A punching mechanism is installed on the top of the outer limiting ring (1), and a supporting mechanism is installed on the surface of the outer limiting ring (1).

5. The wheel rim expansion die according to claim 4, characterized in that: The punching mechanism comprises a suspension frame (12), a hydraulic telescopic rod (13) and a punching plate (14); the suspension frame (12) is fixedly connected to the top end of the outer limiting ring (1); the hydraulic telescopic rod (13) is mounted on the surface of the suspension frame (12); the punching plate (14) is mounted on the telescopic end of the hydraulic telescopic rod (13); and the punching plate (14) is located between the suspension frame (12) and the outer limiting ring (1).

6. The wheel rim expansion die according to claim 4, characterized in that: The support mechanism comprises a support frame (15) and a position adjustment frame (18); the support frame (15) is mounted on the surface of the outer limiting ring (1); the position adjustment frame (18) is connected to the surface of the support frame (15) by sliding up and down; the position adjustment frame (18) is used to support the connecting plate (4); and the surface of the connecting plug plate (8) has a notch for avoiding the support frame (15) when moving.

7. The wheel rim expansion die according to claim 6, characterized in that: The surface of the support frame (15) is provided with a second slide groove (16) for the positioning frame (18) to move up and down. The surface of the support frame (15) is rotatably connected to a vertically arranged threaded rod (17). The threaded rod (17) movably penetrates the surface of the positioning frame (18), and the threaded rod (17) and the positioning frame (18) are threadedly connected.

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