Adjustable rim flaring die

Abstract

The utility model discloses an adjustable rim flaring die which comprises a rim flaring lower die and a rim flaring upper die and further comprises a buffering mechanism, and the buffering mechanism comprises an upper connecting plate, a lower connecting plate, a fastening bolt, an L-shaped upper supporting disc, an L-shaped lower supporting disc, a receiving cylinder, a spring, a guide rod, a pressing rod and a rubber damping ring. Buffering mechanisms are arranged at the rim flaring lower die and the rim flaring upper die, the buffering mechanisms can form a positioning buffering structure at the rim flaring lower die and the rim flaring upper die, and after the rim flaring upper die is installed at a punch of stamping equipment, the rim flaring lower die can be guided, positioned and installed by matching a receiving cylinder with a guide rod. The rim flaring lower die and the rim flaring upper die are ensured to be quickly positioned and mounted at the stamping equipment, and the buffering mechanism performs elastic buffering during die assembly when the rim flaring lower die and the rim flaring stamp-forge the rim, so that damage to the rim when the rim flaring lower die and the rim flaring upper die stamp-forge the rim is effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of moulds, and particularly relates to an adjustable rim flaring mould. Background Art

[0002] A mould is various moulds and tools used in industrial production to obtain required products by means of injection moulding, blow moulding, extrusion, die casting or forging, smelting, stamping, etc. In short, a mould is a tool for making formed articles. At present, a steel wheel is welded by two parts, namely a wheel spoke and a rim. As a main component of the wheel, the processing accuracy of the rim has an important impact on the safety and comfort of the whole vehicle. After the forged blank of the rim is placed in the rim mould, through the closed die forging of the upper die and the lower die, the rim is produced by stamping and forging.

[0003] For a high-precision adjustable flaring mould with the application number of CN202210301559.2, the flaring diameter of the flaring mould can be flexibly adjusted, and at the same time, the flaring accuracy of the workpiece can be improved. Different outer diameter sizes of rims can be produced and processed through this flaring mould, which improves the production efficiency of the rims and meets the production and processing requirements of enterprises for rims with different outer diameters.

[0004] The adjustable rim flaring mould of the existing patented technology can produce and process rims with different outer diameter sizes through the set flaring structure. Before flaring the rim, the lower die and the upper die of the rim flaring mould need to be installed at the machine table of the stamping machine and the lower pressing head respectively. In order to ensure the centering degree of the upper and lower dies of the rim flaring mould, technicians usually need to adjust the lower die to align with the upper die installed at the lower pressing head of the stamping machine for many times, which makes the installation and use of the rim flaring mould inconvenient. Moreover, when the upper die and the lower die of the rim flaring mould are closed during forging, they are also prone to large impact injuries due to improper operation, thus affecting the service life of the adjustable rim flaring mould. Therefore, we propose an adjustable rim flaring mould. Content of the Utility Model

[0005] The main purpose of the utility model is to provide an adjustable rim flaring mould, in which a buffer mechanism is arranged at the rim flaring lower die and the rim flaring upper die. The buffer mechanism can form a positioning buffer structure at the rim flaring lower die and the rim flaring upper die. After the rim flaring upper die is installed at the punch of the stamping equipment, the receiving cylinder of the rim flaring lower die can be guided and positioned in cooperation with the guide rod to ensure the quick positioning installation of the rim flaring lower die and the rim flaring upper die at the stamping equipment. Moreover, the buffer mechanism performs elastic buffering during the die closing when the rim flaring lower die and the rim flaring upper die forge the rim, effectively reducing the damage when the rim flaring lower die and the rim flaring upper die forge the rim, and can effectively solve the problems in the background art.

[0006] To achieve the above object, the technical solution adopted by the present utility model is as follows:

[0007] An adjustable rim flaring die, comprising a rim flaring lower die and a rim flaring upper die, further comprising a buffer mechanism. The buffer mechanism includes an upper connecting plate, a lower connecting plate, fastening bolts, an L-shaped upper support plate, an L-shaped lower support plate, a receiving cylinder, a spring, a guide rod, a pressing rod and a rubber shock-absorbing ring. The rim flaring upper die is supported above the rim flaring lower die, and the lower connecting plate is symmetrically locked to the surface of the upper template of the rim flaring lower die with fastening bolts. The upper connecting plate is symmetrically locked to the surface of the lower template of the rim flaring upper die with fastening bolts. The outer plate surface of the upper connecting plate away from the rim flaring upper die is welded with an L-shaped upper support plate, and the lower disk surface of the L-shaped upper support plate is welded with a guide rod through a pressing rod. The guide rod is sleeved with a rubber shock-absorbing ring. The outer plate surface of the lower connecting plate away from the rim flaring lower die is welded with an L-shaped lower support plate, and the upper disk surface of the L-shaped lower support plate is welded with a receiving cylinder. A spring is inserted into the receiving cylinder, and a guide rod and a rubber shock-absorbing ring are inserted into the receiving cylinder above the spring.

[0008] Wherein, a circular hole with the same diameter as the guide rod is provided in the middle of the rubber shock-absorbing ring, and the diameter of the rubber shock-absorbing ring is the same as the diameter of the receiving cylinder opening;

[0009] By adopting the above technical solution, the rubber shock-absorbing ring can be inserted into the receiving cylinder, and the rubber shock-absorbing ring can be sleeved on the guide rod through the circular hole.

[0010] Wherein, mounting holes are provided on the plate surfaces of the upper connecting plate and the lower connecting plate, and fastening bolts are screwed and installed in the mounting holes. The fastening bolts at the lower connecting plate and the upper connecting plate are respectively screwed into the rim flaring lower die and the rim flaring upper die;

[0011] By adopting the above technical solution, fastening bolts can be screwed at the mounting holes of the upper connecting plate and the lower connecting plate, so as to fix the lower connecting plate and the upper connecting plate to the rim flaring lower die and the rim flaring upper die respectively.

[0012] Wherein, the pressing rod is welded in the middle of the lower disk surface of the L-shaped upper support plate, and the guide rod is welded in the middle of the lower rod surface of the pressing rod;

[0013] By adopting the above technical solution, the lower disk surface of the L-shaped upper support plate can weld the guide rod with the help of the pressing rod.

[0014] Wherein, the diameter of the spring coil is the same as the diameter of the receiving cylinder opening, and the diameter of the spring opening is the same as the diameter of the guide rod;

[0015] By adopting the above technical solution, the spring coil can be inserted into the receiving cylinder, and then the guide rod can be inserted into the spring.

[0016] Wherein, the diameter of the pressing rod is the same as the diameter of the receiving cylinder opening;

[0017] By adopting the above technical solution, the rod body of the pressure rod can be clamped into the receiving cylinder and pressed against the spring by the rubber shock-absorbing ring.

[0018] Compared with the prior art, the utility model has the following beneficial effects:

[0019] The utility model is provided with a buffer mechanism at the rim flaring lower die and the rim flaring upper die. The buffer mechanism can form a positioning buffer structure at the rim flaring lower die and the rim flaring upper die. After the rim flaring upper die is installed at the punch of the stamping equipment, the rim flaring lower die and the receiving cylinder can be guided and positioned by cooperating with the guide rod, ensuring the rapid positioning and installation of the rim flaring lower die and the rim flaring upper die at the stamping equipment. And the buffer mechanism provides elastic buffering during the mold closing when the rim flaring lower die and the rim flaring upper die forge the rim, effectively reducing the damage when the rim flaring lower die and the rim flaring upper die forge the rim. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of an adjustable rim flaring mold of the utility model.

[0021] Figure 2 It is an exploded view of the buffer mechanism of an adjustable rim flaring mold of the utility model.

[0022] In the figure: 1, rim flaring lower die; 2, rim flaring upper die; 3, buffer mechanism; 4, upper connecting plate; 5, lower connecting plate; 6, fastening bolt; 7, mounting hole; 8, L-shaped upper support plate; 9, L-shaped lower support plate; 10, receiving cylinder; 11, spring; 12, guide rod; 13, pressure rod; 14, rubber shock-absorbing ring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] In order to make the technical means, creative features, achieved purposes and functions of the utility model easy to understand, the utility model will be further described below in conjunction with the specific embodiments.

[0024] Such as Figure 1-2As shown in the figure, an adjustable rim flaring die includes a rim flaring lower die 1 and a rim flaring upper die 2, and further includes a buffer mechanism 3. The buffer mechanism 3 includes an upper connecting plate 4, a lower connecting plate 5, a fastening bolt 6, an L-shaped upper support plate 8, an L-shaped lower support plate 9, a receiving cylinder 10, a spring 11, a guide rod 12, a pressure rod 13 and a rubber shock-absorbing ring 14. The rim flaring lower die 1 supports the rim flaring upper die 2 above it, and the lower connecting plate 5 is symmetrically locked to the surface of the upper template of the rim flaring lower die 1 with the fastening bolt 6. The upper connecting plate 4 is symmetrically locked to the surface of the lower template of the rim flaring upper die 2 with the fastening bolt 6. The outer plate surface of the upper connecting plate 4 away from the rim flaring upper die 2 is welded with an L-shaped upper support plate 8, and the lower plate surface of the L-shaped upper support plate 8 is welded with a guide rod 12 with a pressure rod 13. The guide rod 12 is sleeved with a rubber shock-absorbing ring 14. The outer plate surface of the lower connecting plate 5 away from the rim flaring lower die 1 is welded with an L-shaped lower support plate 9, and the upper plate surface of the L-shaped lower support plate 9 is welded with a receiving cylinder 10. A spring 11 is inserted into the receiving cylinder 10, and a guide rod 12 and a rubber shock-absorbing ring 14 are inserted into the receiving cylinder 10 above the spring 11.

[0025] Among them, a circular hole with the same diameter as the guide rod 12 is provided in the middle of the ring body of the rubber shock-absorbing ring 14, and the diameter of the ring body of the rubber shock-absorbing ring 14 is the same as the diameter of the cylinder opening of the receiving cylinder 10.

[0026] By adopting the above technical solution, the ring body of the rubber shock-absorbing ring 14 can be inserted into the receiving cylinder 10, and the rubber shock-absorbing ring 14 can be sleeved on the guide rod 12 with the circular hole.

[0027] Among them, mounting holes 7 are provided on the plate surfaces of the upper connecting plate 4 and the lower connecting plate 5, and fastening bolts 6 are screwed and installed in the mounting holes 7. The fastening bolts 6 at the lower connecting plate 5 and the upper connecting plate 4 are respectively screwed into the rim flaring lower die 1 and the rim flaring upper die 2.

[0028] By adopting the above technical solution, the fastening bolts 6 can be screwed at the mounting holes 7 of the upper connecting plate 4 and the lower connecting plate 5, so as to fix the lower connecting plate 5 and the upper connecting plate 4 to the rim flaring lower die 1 and the rim flaring upper die 2 respectively.

[0029] Among them, the pressure rod 13 is welded in the middle of the lower plate surface of the L-shaped upper support plate 8, and the guide rod 12 is welded in the middle of the lower rod surface of the pressure rod 13.

[0030] By adopting the above technical solution, the lower plate surface of the L-shaped upper support plate 8 can weld the guide rod 12 with the help of the pressure rod 13.

[0031] Among them, the coil diameter of the spring 11 is the same as the diameter of the cylinder opening of the receiving cylinder 10, and the diameter of the coil opening of the spring 11 is the same as the diameter of the rod body of the guide rod 12.

[0032] By adopting the above technical solution, the coil of the spring 11 can be inserted into the receiving cylinder 10, and then the guide rod 12 can be inserted into the spring 11.

[0033] Wherein, the rod diameter of the pressure rod 13 is the same as the diameter of the mouth of the receiving cylinder 10;

[0034] By adopting the above technical solution, the rod body of the pressure rod 13 can be inserted into the receiving cylinder 10 to press the rubber shock-absorbing ring 14 against the spring 11.

[0035] It should be noted that the present utility model is an adjustable rim flaring die. A buffer mechanism 3 is provided at the rim flaring lower die 1 and the rim flaring upper die 2. There are mounting holes 7 on the surfaces of the upper connecting plate 4 and the lower connecting plate 5 of the buffer mechanism 3 through which fastening bolts 6 can be screwed to fix the lower connecting plate 5 and the upper connecting plate 4 at the rim flaring lower die 1 and the rim flaring upper die 2 respectively. Then, at the L-shaped upper support plate 8 outside the upper connecting plate 4, a pressure rod 13 presses against a guide rod 12 to drive a rubber shock-absorbing ring 14 to be inserted into the receiving cylinder 11 of the L-shaped lower support plate 9. When the rim flaring upper die 1 is installed on the punch of a stamping device, the rim flaring lower die 2 can be installed on the machine table of the stamping device. Then, when the rim is placed between the rim flaring lower die 1 and the rim flaring upper die 2 for flaring, the rim flaring upper die 2 presses against the rim flaring lower die 1 and the rim. At this time, the pressure rod 13 can enter the receiving cylinder 10. Then, the lower part of the pressure rod 13 inserts the guide rod 12 into the spring 11 in the receiving cylinder 10. The pressure rod 13 presses the rubber shock-absorbing ring 14 against the spring 11 to generate elastic resistance, buffering the collision damage during rim flaring between the rim flaring lower die 1 and the rim flaring upper die 2. And when the rubber shock-absorbing ring 14 is embedded in the receiving cylinder 10, the rubber shock-absorbing ring 14 can buffer by rubbing the inner wall of the receiving cylinder 10, effectively reducing the damage when the rim flaring lower die 1 and the rim flaring upper die 2 forge the rim. And after the rim flaring lower die 1 and the rim flaring upper die 2 are separated, the guide rod 12 can be pulled out upward from the receiving cylinder 10. And after the rim flaring upper die 2 is installed at the punch of the stamping device, the rim flaring lower die 1 with the receiving cylinder 10 can be installed by guiding and positioning in cooperation with the guide rod 12, ensuring the quick positioning and installation of the rim flaring lower die 1 and the rim flaring upper die 2 at the stamping device.

[0036] It should be noted that the present utility model is an adjustable rim flaring die. The components in the present utility model are all components known to those skilled in the art, and their structures and principles can all be known by those skilled in the art through technical manuals or obtained through conventional experimental methods.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above-mentioned embodiments. The above-mentioned embodiments and the descriptions in the specification only illustrate the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. An adjustable rim expansion die, comprising a rim expansion lower die (1) and a rim expansion upper die (2), characterized in that: The invention also comprises a buffer mechanism (3), wherein the buffer mechanism (3) comprises an upper connecting plate (4), a lower connecting plate (5), a fastening bolt (6), an L-shaped upper supporting plate (8), an L-shaped lower supporting plate (9), a receiving tube (10), a spring (11), a guide rod (12), a pressure rod (13) and a rubber shock absorbing ring (14); the upper mold plate (2) of the rim expansion lower mold (1) is supported by the rim expansion upper mold (2); the upper mold plate surface of the rim expansion lower mold (1) is symmetrically locked with the lower connecting plate (5) by the fastening bolt (6); the lower mold plate surface of the rim expansion upper mold (2) is symmetrically locked with the upper connecting plate (4) by the fastening bolt (6); An L-shaped upper support plate (8) is welded to the outer plate surface of the upper connecting plate (4) away from the rim expansion upper die (2), and a guide rod (12) is welded to the lower plate surface of the L-shaped upper support plate (8) through a pressure rod (13), and a rubber damping ring (14) is clamped outside the guide rod (12). An L-shaped lower support plate (9) is welded to the outer plate surface of the lower connecting plate (5) away from the rim expansion lower die (1), and a receiving tube (10) is welded to the upper plate surface of the L-shaped lower support plate (9), a spring (11) is inserted into the receiving tube (10), and a guide rod (12) and a rubber damping ring (14) are inserted into the receiving tube (10) above the spring (11).

2. The adjustable rim expansion die according to claim 1, characterized in that: A ring hole having the same diameter as the guide rod (12) is provided in the middle of the ring body of the rubber shock absorbing ring (14), and the ring body diameter of the rubber shock absorbing ring (14) is the same as the diameter of the tube mouth of the receiving tube (10).

3. The adjustable rim expansion die according to claim 1, characterized in that: The upper connecting plate (4) and the lower connecting plate (5) are provided with mounting holes (7) on their plate surfaces, and fastening bolts (6) are screwed into the mounting holes (7). The fastening bolts (6) at the lower connecting plate (5) and the upper connecting plate (4) are screwed into the rim expansion lower die (1) and the rim expansion upper die (2) respectively.

4. The adjustable rim expansion die according to claim 1, characterized in that: The pressure rod (13) is centrally welded to the lower disk surface of the L-shaped upper support disk (8), and the guide rod (12) is centrally welded to the lower rod surface of the pressure rod (13).

5. The adjustable rim expansion die according to claim 1, characterized in that: The spring coil diameter of the spring (11) is the same as the diameter of the tube opening of the receiving tube (10), and the coil opening diameter of the spring (11) is the same as the rod body diameter of the guide rod (12).

6. The adjustable rim expansion die according to claim 1, characterized in that: The rod body diameter of the pressure rod (13) is the same as the diameter of the tube mouth of the receiving tube (10).

Images