Pull ring punching mechanism of mechanical punching machine

Abstract

The utility model relates to a mechanical punching machine pull ring punching mechanism which comprises a punching machine body, an eccentric shaft installed on a power output shaft of the punching machine body, a bearing bush installed on the eccentric shaft, a pull ring block installed on the bearing bush, a sliding plate connected with the pull ring block and a punching cutter installed on the sliding plate. The pull ring block comprises a large ring shaft sleeve, a small ring shaft sleeve and a connecting section connecting the large ring shaft sleeve and the small ring shaft sleeve which are integrally formed, the large ring shaft sleeve sleeves a bearing bush of the eccentric shaft, the small ring shaft sleeve sleeves a connecting shaft of the sliding plate, and the connecting shaft is fixedly connected to the end, away from the punching cutter, of the sliding plate. The eccentric shaft pushes the punching cutter on the sliding plate to punch the connecting rod bar through the pull ring block; the pull ring punching mechanism has the advantages that the pull ring punching mechanism mounted on the punching machine body realizes short-stroke quick shearing of a connecting rod bar, and compared with a punching mode that the punching machine body punches about twenty sections in one minute in the prior art, shearing can be realized once per second by matching the eccentric shaft with the pull ring block and the sliding plate.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile connecting rod shearing, especially relates to a mechanical punch ring punching mechanism. BACKGROUND

[0002] In the rapid development of modern manufacturing industry, engine connecting rod forging manufacturing plays an important role, which involves the production of key equipment such as engine. However, with the continuous progress of technology, manufacturing industry also faces higher and higher production efficiency and product quality requirements. Under this background, automation production becomes an urgent demand to reduce cost, improve efficiency, reduce human intervention, and at the same time ensure the production of high-quality products.

[0003] In the connecting rod forging manufacturing, the bar needs to be sheared into segments, but the current punch punching efficiency is not high, which cannot meet the demand of high yield. SUMMARY

[0004] In view of the above problems, the utility model aims at providing a mechanical punch ring punching mechanism for accelerating the punching efficiency of the punch to overcome the shortcomings of the prior art.

[0005] The utility model provides a mechanical punch ring punching mechanism, which comprises a punch body, an eccentric shaft installed on the power output shaft of the punch body, a bearing bush installed on the eccentric shaft, a ring block installed on the bearing bush, a sliding plate connected with the ring block, and a punching cutter installed on the sliding plate.

[0006] As a preferred embodiment of the utility model, a trapezoidal avoidance groove is formed on one end of the sliding plate close to the ring block, a hinge shaft connecting plate is fixedly connected to the edge of the trapezoidal avoidance groove on the sliding plate, the connecting shaft is fixedly connected to the hinge shaft connecting plate, and the small ring bush is sleeved on the connecting shaft on the hinge shaft connecting plate.

[0007] The utility model has the following advantages: the ring punching mechanism installed on the punch body realizes the rapid shearing of the connecting rod bar in a short stroke. Compared with the previous punch body which can punch about twenty segments per minute, the punching mode of the eccentric shaft combined with the ring block and the sliding plate can realize shearing once per second. BRIEF DESCRIPTION OF DRAWINGS

[0008] Other purposes and results of the utility model will be more apparent and easy to understand by referring to the following description in combination with the drawings, and with a more comprehensive understanding of the utility model. In the drawings:

[0009] Figure 1 It is the whole structure schematic view of the embodiment.

[0010] Figure 2 It is the eccentric shaft and the pull ring block installation schematic view of the embodiment.

[0011] Figure 3 It is the eccentric shaft and the pull ring block explosion view of the embodiment.

[0012] Figure 4 It is the pull ring block front view of the embodiment.

[0013] The reference signs include: punch machine body 1, eccentric shaft 2, power output shaft 3, pull ring block 4, large ring shaft sleeve 401, small ring shaft sleeve 402, connecting section 403, slide plate 5, punching cutter 6, connecting shaft 7, trapezoidal avoidance groove 8, hinge shaft connecting plate 9. DETAILED DESCRIPTION

[0014] Referring to Figures 1-4 The embodiment provides a mechanical punch pull ring punching mechanism, which comprises a punch machine body 1, an eccentric shaft 2 installed on a power output shaft 10 of the punch machine body 1, a bearing installed on the eccentric shaft 2, a pull ring block 4 installed on the bearing, a slide plate 5 connected with the pull ring block 4 and a punching cutter 6 installed on the slide plate 5. The pull ring block 4 comprises a large ring shaft sleeve 401, a small ring shaft sleeve 402 and a connecting section 403 connecting the large ring shaft sleeve 401 and the small ring shaft sleeve 402, the large ring shaft sleeve 401 is sleeved on the bearing of the eccentric shaft 2, the small ring shaft sleeve 402 is sleeved on a connecting shaft 7 of the slide plate 5, the connecting shaft 7 is fixedly connected to one end of the slide plate 5 away from the punching cutter 6, the eccentric shaft 2 drives the punching cutter 6 on the slide plate 5 to punch a connecting rod bar through the pull ring block 4. A trapezoidal avoidance groove 8 is formed in one end of the slide plate 5 close to the pull ring block 4, a hinge shaft connecting plate 9 is fixedly connected to a position on the slide plate 5 at the edge of the trapezoidal avoidance groove 8, the connecting shaft 7 is fixedly connected to the hinge shaft connecting plate 9, and the small ring shaft sleeve 402 is sleeved on the connecting shaft 7 on the hinge shaft connecting plate 9.

[0015] Working principle: the rotation of the output shaft is converted into reciprocating pushing action of the pull ring block 4 through the eccentric shaft 2 on the punch machine body 1, and the punching cutter 6 on the slide plate 5 is driven to perform shearing action through the pull ring block 4.

[0016] The above is only a specific implementation manner of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can easily think of changes or replacements within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model. Therefore, the protection scope of the utility model should be subject to the protection scope of the claims.

Claims

1. A mechanical punch draw tab punching mechanism characterized by, The utility model relates to a punch body, eccentric shaft installed on the power output shaft of punch body, bearing bush installed on eccentric shaft, pull ring block installed on bearing bush, slide plate connected with pull ring block and cutting die installed on slide plate, the pull ring block includes: integral forming big ring shaft sleeve, small ring shaft sleeve and connecting segment connecting big ring shaft sleeve and small ring shaft sleeve, big ring shaft sleeve is sleeved on bearing bush of eccentric shaft, small ring shaft sleeve is sleeved on connecting shaft of slide plate, and connecting shaft is fixedly connected at the end of slide plate away from cutting die, and eccentric shaft pushes cutting die on slide plate through pull ring block and cuts connecting rod bar material. The end of the slide plate close to the pull ring block is provided with a trapezoidal avoiding slot, a hinge shaft connecting plate is fixedly connected to the edge of the trapezoidal avoiding slot on the slide plate, the connecting shaft is fixedly connected to the hinge shaft connecting plate, and the small ring shaft sleeve is sleeved on the connecting shaft of the hinge shaft connecting plate.

2. A mechanical punch tabbing mechanism according to claim 1 wherein, ​

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