Cutting-off die with anti-collision structure for rim machining

Abstract

The utility model discloses a rim processing cut-off die with an anti-collision structure, which relates to the technical field of rim processing, and comprises a cut-off die body which is suitable for cutting off in rim processing, the cut-off die body comprises a bearing base, a lower die is arranged in the middle of the top of the bearing base, and the lower die is provided with an anti-collision structure. A support is welded to the periphery of the top of the bearing base, an upper die is arranged at the bottom end of the top of the support, anti-collision units are arranged on the two sides of the bearing base, limiting units are arranged on the two sides of the support, and a material ejecting unit is arranged at the bottom end of the interior of the bearing base. Due to the fact that the attaching block is arranged to make contact with the buffering rod below, the buffering rod moves downwards continuously through extrusion force, the supporting rods on the two sides are promoted to move in the opposite directions, the buffering effect is achieved through elastic potential energy of the reset spring and the compression spring, and the impact force generated by punching and cutting is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of wheel rim processing, in particular to a wheel rim processing cutting die with an anti-collision structure. Background Art

[0002] The rim is the transmission link of the entire car. It is used between the tire and the wheel drum. It supports the entire vehicle and drives the tire to make circular motion during the driving of the car, so as to promote the normal movement of the entire vehicle. The rim is generally made of alloy. During the manufacturing process of the rim, it is often necessary to cut it. When cutting, a rim stamping and cutting die is needed to cut the rim to facilitate subsequent operations.

[0003] In the prior art, a Chinese patent document with publication number CN218109034U and publication date December 23, 2022 is proposed to solve the above-mentioned technical problems. The technical solution disclosed in the patent document is as follows: A punching and cutting die for channel steel processing, comprising a base, a punching seat, a channel steel cutting die and a material return baffle are arranged side by side on the upper end of the base, a punching upper seat is arranged above the punching seat, the upper end of the punching upper seat is connected to the punching cylinder, and a punch is fixedly arranged at the lower end of the punching upper seat; a cutting knife seat is installed on the channel steel cutting die, and a cutting connecting plate connected to the cutting die cylinder is fixedly arranged on the upper part of the cutting knife seat, and a cutting knife is arranged at the lower part of the cutting knife seat.

[0004] In order to solve the problem of punching and cutting of the workpiece, the existing technology uses a punching cylinder to drive the punching upper seat to move downward, the punch is inserted into the punch hole, and the channel steel is punched. After the punching is completed, the punching upper seat is reset upward under the action of the punching cylinder. However, this punching and cutting method will cause a certain impact force. The upper mold hitting the lower mold will cause damage to the device, thereby reducing the service life of the cutting mold. Utility Model Content

[0005] The utility model aims to provide a cutting die for rim processing with an anti-collision structure to solve the problems raised in the above-mentioned background technology.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0007] A cutting die for rim processing with an anti-collision structure comprises a cutting die body, which is suitable for cutting during rim processing. The cutting die body comprises a bearing base, a lower die is arranged at the middle position of the top of the bearing base, brackets are welded around the top of the bearing base, and an upper die is arranged at the bottom end of the top of the bracket.

[0008] Anti-collision units are arranged on both sides of the bearing base, limiting units are arranged on both sides of the bracket, and a lifting unit is arranged on the inner bottom end of the bearing base.

[0009] A further improvement of the technical solution of the utility model is that the anti-collision unit includes a buffer rod arranged on both sides of the bearing base, a rubber pad is fixedly connected to the top of the buffer rod, a return spring is movably sleeved on the outer surface of the buffer rod, sliding cross bars are welded on both sides of the inside of the bearing base, a bearing is fixedly installed on the bottom end of the buffer rod, and the rubber pad can prevent the noise from being reduced when the stamping moves downward.

[0010] A further improvement of the technical solution of the utility model is that a support rod is rotatably installed at the internal axis of the bearing, a sliding shaft block is rotatably installed on the other end of the support rod, the sliding shaft block is slidably installed on the outer surface of the sliding cross bar, and a compression spring is arranged at the middle position of the sliding cross bar between the sliding shaft blocks on both sides, and the buffer assembly can achieve an anti-collision effect when the upper mold moves downward.

[0011] A further improvement of the technical solution of the utility model is that the limiting unit includes a stamping and cutting plate arranged on the top of the upper mold, connecting plates are welded on both sides of the stamping and cutting plate, through holes are opened on both sides of the connecting plate, and limiting vertical plates are movably inserted inside the through holes. The limiting vertical plates are fixedly installed on both sides of the bearing base and the bracket. The limiting vertical plates can enable the upper mold to move downward in a straight line to prevent dislocation.

[0012] A further improvement of the technical solution of the utility model is that: a fitting block is fixedly connected to the bottom end of the connecting plate, a hydraulic cylinder is fixedly installed on the top of the bracket above the stamping and cutting plate, a hydraulic rod is fixedly installed on the output end of the hydraulic cylinder, and the other end of the hydraulic rod is fixedly installed on the top of the stamping and cutting plate. The hydraulic assembly causes the upper mold to move downward to stamp and cut the rim inside the lower mold.

[0013] A further improvement of the technical solution of the utility model is that the ejecting unit includes a supporting plate arranged inside the lower mold, a sleeve is fixedly installed on the bottom end of the supporting plate, a tooth plate is arranged on the left side of the sleeve, a piston rod is movably installed inside the bottom end of the sleeve, and a mounting bracket is welded on the left side of the piston rod, so that the supporting plate is convenient for supporting the rim.

[0014] A further improvement of the technical solution of the utility model is that a driving motor is fixedly installed on the rear end of the supporting base behind the mounting bracket, a driving rod is fixedly installed on the output end of the driving motor, a rotating gear is fixedly installed on the other end of the driving rod, and the rotating gear is arranged inside the mounting bracket. The rotating gear is meshingly connected with the tooth plate, and the rotation of the rotating gear can make the sleeve move upward to lift the supporting plate, so that the cut rim is easy to take.

[0015] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:

[0016] 1. The utility model provides a cutting die for rim processing with an anti-collision structure. By setting a fitting block in contact with the buffer rod below, the extrusion force causes the buffer rod to move downward continuously, prompting the support rods on both sides to move in the opposite direction, and the elastic potential energy of the return spring and the compression spring is used for buffering, thereby reducing the impact force of stamping and cutting.

[0017] 2. The utility model provides a cutting die for rim processing with an anti-collision structure. The hydraulic cylinder is started to cause the hydraulic rod to push the upper die to move downward gradually, and the cutting knife inside the upper die is used for cutting. When moving downward, the connecting plates on both sides of the stamping and cutting plate slide on the outer surface of the limiting vertical plate, so that the downward movement maintains a linear motion, prevents position deviation, and improves the cutting accuracy.

[0018] 3. The utility model provides a cutting die for rim processing with an anti-collision structure. A driving motor is arranged to drive a driving rod to cause the rotating gear to rotate, thereby driving the tooth plate to cause the sleeve to slide on the outer surface of the piston rod and move upward to lift the supporting plate upward, so that the cut rim is easy to pick up. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the utility model;

[0020] Figure 2 It is a schematic diagram of the upper mold and lower mold structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the load-bearing base of the utility model;

[0022] Figure 4 This is a schematic diagram of the upper mold structure of the utility model;

[0023] Figure 5 It is a schematic diagram of the structure of the bearing base of the utility model.

[0024] In the figure: 1. Cutting die body; 2. Load-bearing base; 21. Buffer rod; 22. Rubber pad; 23. Reset spring; 24. Sliding cross bar; 25. Bearing; 26. Support rod; 27. Sliding shaft block; 28. Compression spring; 3. Lower die; 31. Support plate; 32. Sleeve; 33. Tooth plate; 34. Piston rod; 35. Mounting bracket; 36. Drive motor; 37. Drive rod; 38. Rotating gear; 4. Upper die; 41. Hydraulic cylinder; 42. Hydraulic rod; 43. Stamping and cutting plate; 431. Connecting plate; 432. Through hole; 433. Limiting vertical plate; 434. Fitting block; 5. Bracket. DETAILED DESCRIPTION

[0025] The present invention is further described in detail below in conjunction with the embodiments:

[0026] Example 1

[0027] like Figure 1-5 As shown, the utility model provides a rim processing cutting die with an anti-collision structure, including a cutting die body 1, which is suitable for cutting for rim processing, and the cutting die body 1 includes a bearing base 2, a lower die 3 is arranged at the middle position of the top of the bearing base 2, a bracket 5 is welded around the top of the bearing base 2, an upper die 4 is arranged on the top bottom end of the bracket 5, anti-collision units are arranged on both sides of the bearing base 2, limited position units are arranged on both sides of the bracket 5, a top material unit is arranged on the inner bottom end of the bearing base 2, and the anti-collision unit includes a The buffer rods 21 on both sides have rubber pads 22 fixedly connected to the tops of the buffer rods 21, reset springs 23 are movably sleeved on the outer surfaces of the buffer rods 21, sliding cross bars 24 are welded on both sides of the interior of the supporting base 2, bearings 25 are fixedly mounted on the bottom ends of the buffer rods 21, support rods 26 are rotatably mounted at the inner axis of the bearings 25, sliding shaft blocks 27 are rotatably mounted on the other ends of the support rods 26, the sliding shaft blocks 27 are slidably mounted on the outer surfaces of the sliding cross bars 24, and a compression spring 28 is arranged at the middle position of the sliding cross bars 24 between the sliding shaft blocks 27 on both sides.

[0028] Furthermore, when the punching and cutting is performed downward, the fitting block 434 first contacts the buffer rod 21 below, and the extrusion force causes the buffer rod 21 to move downward continuously, prompting the support rods 26 on both sides to move in the opposite direction, and the elastic potential energy of the return spring 23 and the compression spring 28 is used for buffering, thereby reducing the impact force of the punching and cutting.

[0029] Example 2

[0030] like Figure 1-5As shown, on the basis of Example 1, the utility model provides a technical solution: preferably, the limiting unit includes a stamping and cutting plate 43 arranged on the top of the upper mold 4, connecting plates 431 are welded on both sides of the stamping and cutting plate 43, through holes 432 are opened on both sides of the connecting plate 431, and limiting vertical plates 433 are movably inserted inside the through holes 432. The limiting vertical plates 433 are fixedly installed on both sides of the bearing base 2 and the bracket 5, and a fitting block 434 is fixedly connected to the bottom end of the connecting plate 431. A hydraulic cylinder 41 is fixedly installed on the top of the bracket 5 above the stamping and cutting plate 43, and a hydraulic rod 42 is fixedly installed on the output end of the hydraulic cylinder 41, and the other end of the hydraulic rod 42 is fixedly installed on the top of the stamping and cutting plate 43.

[0031] Furthermore, the activation of the hydraulic cylinder 41 prompts the hydraulic rod 42 to push the upper mold 4 to move downward gradually, and the cutting knife inside the upper mold 4 is used to perform cutting processing. When moving downward, the connecting plates 431 on both sides of the stamping and cutting plate 43 slide on the outer surface of the limiting vertical plate 433, so that the downward movement maintains a linear motion to prevent position displacement.

[0032] Example 3

[0033] like Figure 1-5 As shown, on the basis of Examples 1-2, the utility model provides a technical solution: preferably, the ejection unit includes a support plate 31 arranged inside the lower mold 3, a sleeve 32 is fixedly installed on the bottom end of the support plate 31, a tooth plate 33 is arranged on the left side of the sleeve 32, a piston rod 34 is movably installed inside the bottom end of the sleeve 32, a mounting bracket 35 is welded on the left side of the piston rod 34, a drive motor 36 is fixedly installed on the rear end of the supporting base 2 behind the mounting bracket 35, a drive rod 37 is fixedly installed on the output end of the drive motor 36, a rotating gear 38 is fixedly installed on the other end of the driving rod 37, the rotating gear 38 is arranged inside the mounting bracket 35, and the rotating gear 38 is meshingly connected with the tooth plate 33.

[0034] Furthermore, by starting the drive motor 36, the drive motor 36 drives the drive rod 37 to cause the rotating gear 38 to rotate, thereby driving the tooth plate 33 to cause the sleeve 32 to slide on the outer surface of the piston rod 34 to move upward to lift the support plate 31 upward, so that the cut rim is easy to take.

[0035] The working principle of the cutting die for rim processing with an anti-collision structure is described in detail below.

[0036] like Figure 1-5As shown, when in use, the rim to be cut is placed inside the lower mold 3, and the hydraulic cylinder 41 is started to cause the hydraulic rod 42 to push the upper mold 4 to gradually move downward, and the cutting knife inside the upper mold 4 is used to cut. When moving downward, the connecting plates 431 on both sides of the stamping and cutting plate 43 slide on the outer surface of the limiting vertical plate 433, so that the downward movement maintains a linear motion to prevent position deviation. At the same time, the fitting block 434 at the bottom first contacts the buffer rod 21 below, and the extrusion force causes the buffer rod 21 to move downward continuously, causing the support rods 26 on both sides to move in the opposite direction. The elastic potential energy of the return spring 23 and the compression spring 28 is used for buffering to reduce the impact force of the stamping and cutting. After the cutting is completed, the drive motor 36 is started, and the drive motor 36 drives the drive rod 37 to cause the rotating gear 38 to rotate, thereby driving the tooth plate 33 to cause the sleeve 32 to slide on the outer surface of the piston rod 34 and move upward to lift the supporting plate 31 upward, so that the cut rim is easy to take.

[0037] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A cutting die for rim processing with an anti-collision structure, comprising a cutting die body (1), suitable for cutting for rim processing, characterized in that: The cutting die body (1) comprises a bearing base (2), a lower die (3) is arranged at the middle position of the top of the bearing base (2), a bracket (5) is welded around the top of the bearing base (2), and an upper die (4) is arranged at the bottom end of the top of the bracket (5); Anti-collision units are arranged on both sides of the bearing base (2), limiting units are arranged on both sides of the bracket (5), and a lifting unit is arranged on the inner bottom end of the bearing base (2).

2. The cutting die for rim processing with an anti-collision structure according to claim 1, characterized in that: The anti-collision unit comprises a buffer rod (21) arranged on both sides of the bearing base (2), the top of the buffer rod (21) is fixedly connected to a rubber pad (22), a return spring (23) is movably sleeved on the outer surface of the buffer rod (21), sliding cross bars (24) are welded on both sides of the inside of the bearing base (2), and a bearing (25) is fixedly installed on the bottom end of the buffer rod (21).

3. The cutting die for rim processing with an anti-collision structure according to claim 2, characterized in that: A support rod (26) is rotatably mounted at the inner axis of the bearing (25), a sliding shaft block (27) is rotatably mounted on the other end of the support rod (26), the sliding shaft block (27) is slidably mounted on the outer surface of the sliding cross bar (24), and a compression spring (28) is arranged at the middle position of the sliding cross bar (24) between the sliding shaft blocks (27) on both sides.

4. The cutting die for rim processing with an anti-collision structure according to claim 1, characterized in that: The limiting unit comprises a punching and cutting plate (43) arranged on the top of the upper mold (4), connecting plates (431) are welded on both sides of the punching and cutting plate (43), through holes (432) are opened on both sides of the connecting plate (431), and limiting vertical plates (433) are movably inserted inside the through holes (432), and the limiting vertical plates (433) are fixedly installed on both sides of the bearing base (2) and the bracket (5).

5. The cutting die for rim processing with an anti-collision structure according to claim 4, characterized in that: A fitting block (434) is fixedly connected to the bottom end of the connecting plate (431), a hydraulic cylinder (41) is fixedly installed on the top of the bracket (5) above the punching and cutting plate (43), a hydraulic rod (42) is fixedly installed on the output end of the hydraulic cylinder (41), and the other end of the hydraulic rod (42) is fixedly installed on the top of the punching and cutting plate (43).

6. The cutting die for rim processing with an anti-collision structure according to claim 1, characterized in that: The ejection unit comprises a support plate (31) arranged inside the lower mold (3), a sleeve (32) is fixedly installed on the bottom end of the support plate (31), a tooth plate (33) is arranged on the left side of the sleeve (32), a piston rod (34) is movably installed inside the bottom end of the sleeve (32), and a mounting bracket (35) is welded on the left side of the piston rod (34).

7. The cutting die for rim processing with an anti-collision structure according to claim 6, characterized in that: A driving motor (36) is fixedly mounted on the rear end of the supporting base (2) behind the mounting bracket (35); a driving rod (37) is fixedly mounted on the output end of the driving motor (36); a rotating gear (38) is fixedly mounted on the other end of the driving rod (37); the rotating gear (38) is arranged inside the mounting bracket (35); and the rotating gear (38) is meshedly connected with the tooth plate (33).

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