Positioning device for punching of medium-sized steel wheel

Abstract

The utility model relates to a medium-sized steel wheel punching positioning device which comprises a centering ring, an eccentric cam, a limiting plate and a punching die, the eccentric cam is arranged on the punching die, four arc limiting grooves are formed in the outer wall of the centering ring at equal intervals, the arc limiting grooves are matched with the limiting plate, an oval groove is formed between every two adjacent arc limiting grooves, and the limiting plate is matched with the oval groove. A cam shaft is arranged in each oval groove in a sleeved mode, and the cam shafts are matched with the eccentric cams. According to the clamp, when the centering ring needs to be installed, the centering ring is swung, the oval groove can drive the cam shaft to move, the cam shaft can drive the eccentric cams to swing, and when the three eccentric cams swing to be attached to the centering ring, three-point positioning can be just formed, so that the centering ring and the punching die are concentric. The centering ring can be automatically aligned in the punching die, the centering ring is locked when being pulled anticlockwise, the centering ring is loosened when being pulled clockwise, and when the centering ring needs to be disassembled, the centering ring is loosened by rotating the centering ring in the reverse direction, so that the centering ring is easy to assemble and disassemble.

Description

TECHNICAL FIELD

[0001] The utility model relates to steel wheel punching technical field, concretely is a medium -sized steel wheel punching positioning device. BACKGROUND

[0002] The existing steel wheel punching positioning device cannot accurately find the center of the centering ring if the fixed positioning block is used because the outer circle of the punched steel wheel has certain diameter error and ovality, and the large punch of the upper die and the concave die of the lower die of the centering ring punching die need to be punched concentrically with the centering ring during the device operation, so that the round runout of the centering ring can be well controlled, therefore, the medium -sized steel wheel punching positioning device is provided for the above technical problems. SUMMARY

[0003] The utility model discloses a medium -sized steel wheel punching positioning device to solve the problem in the background art.

[0004] To achieve the above object, the utility model provides the following technical scheme: a medium -sized steel wheel punching positioning device, including centering ring, eccentric cam, limit stop and punching die, the eccentric cam sets up on the punching die, and the eccentric cam number is three, the limit stop number is four, four arc limit slots are set up on the outer wall of the centering ring, the arc limit slot and limit stop are mutually cooperated, the adjacent two arc limit slots are set up with elliptical groove respectively, the cam shaft is set up in every elliptical groove and is nested, the cam shaft is cooperated with eccentric cam.

[0005] As a preferred scheme, the outer wall of the centering ring is provided with a centering ring wrench.

[0006] From the above technical scheme provided by the utility model, it can be seen that the medium -sized steel wheel punching positioning device provided by the utility model has the beneficial effects that:

[0007] When the centering ring needs to be installed, the centering ring is swung, the elliptical groove can drive the cam shaft to move, the cam shaft can drive the eccentric cam to swing, when the three eccentric cams swing to adhere to the centering ring, three-point positioning is formed, so that the centering ring is concentric with the punching die, the fixture three-point positioning can automatically find the centering ring in the punching die, the centering ring is tightened counterclockwise and loosened clockwise, when disassembling, the centering ring is rotated in the opposite direction, so that the centering ring is loosened, and the assembly and disassembly are relatively simple. BRIEF DESCRIPTION OF DRAWINGS

[0008] Fig. 1 It is medium -sized steel wheel punching positioning device punching die assembly drawing for the utility model to provide a kind of medium -sized steel wheel punching positioning device;

[0009] Fig. 2 It is centering ring structure schematic view for the utility model to provide a kind of medium -sized steel wheel punching positioning device.

[0010] Fig. 3 The installation effect diagram of the medium steel wheel punching positioning device.

[0011] In the figure: 1, the centering ring; 2, eccentric cam; 3, limit plate; 4, arc limit slot; 5, oval slot; 6, camshaft; 7, centering ring wrench; 8, punching die. DETAILED DESCRIPTION

[0012] In order to make the purpose, technical scheme and advantages of the utility model more clearly, the following will be combined with the drawings and examples to make further detailed description of the utility model. It should be understood that the specific examples described here are only used to explain the utility model, and are not used to limit the utility model.

[0013] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0014] In the description of the utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0015] In addition, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0016] In order to better understand the above technical scheme, the above technical scheme will be described in detail in the following description of the drawings and specific embodiments.

[0017] As Figs. 1-3The utility model discloses a medium -sized steel wheel punch positioning device, including the centering ring 1, eccentric cam 2, limit plate 3 and punch die 8, eccentric cam 2 sets up on punch die 8, and eccentric cam 2 number is three, limit plate 3 number is four, the equal interval of four arc limit slot 4 is provided on the outer wall of centering ring 1, arc limit slot 4 and limit plate 3 are mutually matched, be provided with elliptical groove 5 respectively between two adjacent arc limit slot 4, every elliptical groove 5 is provided with camshaft 6 with the sleeve, camshaft 6 is matched with eccentric cam 2. The outer wall of centering ring 1 is provided with centering ring wrench 7.

[0018] When needing to install the centering ring, rotate the centering ring wrench 7 to swing the centering ring 1, and the elliptical groove 5 can drive the camshaft 6 to move, and the camshaft 6 can drive the eccentric cam 2 to swing, when the three eccentric cams 2 swing to adhere to the centering ring 1, three-point positioning can be formed, so that the centering ring 1 is concentric with the punch die 8, and the clamp three-point positioning can make the centering ring 1 automatically align in the punch die 8, the centering ring 1 is counterclockwise to pull to lock, and clockwise to pull to loosen, when needing to disassemble, rotate the centering ring 1 in the opposite direction to loosen the centering ring 1 and separate from the punch die 8, and the assembly and disassembly are relatively simple.

[0019] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A medium steel wheel punching positioning device, comprising a centering ring (1), an eccentric cam (2), a limiting plate (3) and a punching die (8), characterized in that: The eccentric cam (2) is arranged on a punching die (8), the number of the eccentric cam (2) is three, the number of the limiting plate (3) is four, four arc limiting grooves (4) are equidistantly arranged on the outer wall of the centering ring (1), the arc limiting groove (4) is matched with the limiting plate (3), the adjacent two arc limiting grooves (4) are respectively provided with an elliptical groove (5), the cam shaft (6) is arranged in the elliptical groove (5) in a sleeving mode, and the cam shaft (6) is matched with the eccentric cam (2).

2. A medium steel wheel punching positioning device according to claim 1, characterized in that: The outer wall of the centering ring (1) is provided with a centering ring wrench (7).

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