Eccentric shaft for a mechanical punch for cutting connecting rod bars
Patent Information
- Application Number
- CN202521989532.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-16
- Publication Date
- 2026-10-09
- Estimated Expiration
- 2035-09-16
AI Technical Summary
[0003]连杆锻造制造中的一个关键环节是连杆锻件棒料切料,然而,传统的冲床可用于锻造冲床、厚板冲孔加工、连续模加工等的重负荷工作,但是目前针对连杆锻件棒料在切断成型中,由于连杆棒料较短导致现有冲床加工效率较慢
[0008]本实用新型的有益效果如下:通过在冲床中采用偏心轴作为驱动部件,偏心轴通过偏心轮将旋转运动转化为滑块的往复直线运动,并实现行程调节、运动形式转换及机械动作优化,实现连杆棒料的快速切断。
Smart Images

Figure CN224824107U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of connecting rod processing technology, and in particular to an eccentric shaft of a mechanical punch for cutting connecting rod bars. Background Technology
[0002] In the rapid development of modern manufacturing, engine connecting rod forging plays a crucial role, involving the production of key equipment such as engines. However, with continuous technological advancements, the manufacturing industry faces increasingly higher demands for production efficiency and product quality. Against this backdrop, automated production has become an urgent need to reduce costs, improve efficiency, minimize human intervention, and ensure the production of high-quality products.
[0003] A key step in connecting rod forging is cutting the connecting rod forging bar stock. However, while traditional punch presses can handle heavy-duty tasks such as forging punches, thick plate punching, and progressive die processing, the current punch presses are slow in cutting and forming connecting rod forging bars due to the relatively short length of the connecting rod stock. Utility Model Content
[0004] In view of the above problems, the purpose of this utility model is to provide an eccentric shaft for a mechanical punch press for cutting connecting rod bars, so as to improve the cutting efficiency of connecting rod bars and overcome the shortcomings of the prior art.
[0005] This utility model provides an eccentric shaft for a mechanical punch press for cutting connecting rod bars, and a mechanical punch press body. The drive shaft of the mechanical punch press body is an eccentric shaft, and an eccentric section is provided at the center of the eccentric shaft. A drive connecting rod is mounted on the eccentric section. The drive connecting rod pushes a drive slider. A punching cutter is installed on the drive slider. The eccentric section drives the drive slider to reciprocate, thereby driving the punching cutter to cut the connecting rod bar.
[0006] As a preferred embodiment of this utility model, an eccentric wheel is provided on the eccentric section, and the drive connecting rod is fitted onto the eccentric wheel through a connecting hole. The other end of the drive connecting rod is a circular surface, and the circular surface of the drive connecting rod pushes the drive slider to reciprocate under the drive of the eccentric wheel.
[0007] As a preferred embodiment of this invention, the deflecting wheel is mounted on the eccentric shaft and fixed with bolts, and the inner ring of the deflecting wheel meshes with the eccentric shaft through teeth.
[0008] The beneficial effects of this utility model are as follows: by using an eccentric shaft as a driving component in the punch press, the eccentric shaft converts the rotational motion into the reciprocating linear motion of the slider through the eccentric wheel, and realizes stroke adjustment, motion form conversion and mechanical action optimization, thereby achieving rapid cutting of connecting rod bar stock. Attached Figure Description
[0009] Figure 1 This is the front view of the overall structure of the eccentric shaft in this embodiment.
[0010] Figure 2 This is a side view of the overall structure of the eccentric shaft in this embodiment.
[0011] Figure 3 This is a top view of the overall structure of the eccentric shaft in this embodiment.
[0012] Attached diagram labels: 1. Eccentric shaft, 2. Eccentric segment, 3. Eccentric wheel. Detailed Implementation
[0013] See Figure 1-3 As shown in the figure, this embodiment provides an eccentric shaft for a mechanical punch press for cutting connecting rod bars. The mechanical punch press body has an eccentric shaft 1 as its drive shaft. An eccentric section 2 is located at the center of the eccentric shaft 1. A drive connecting rod is mounted on the eccentric section 2, which pushes a drive slider. A cutting tool is mounted on the drive slider. The eccentric section 2 drives the drive slider in a reciprocating motion, causing the cutting tool to cut the connecting rod bar. An eccentric wheel 3 is provided on the eccentric section 2. The drive connecting rod is mounted on the eccentric wheel 3 through a connecting hole. The other end of the drive connecting rod is a circular surface, which pushes the drive slider in a reciprocating motion under the drive of the eccentric wheel 3. The eccentric wheel 3 is mounted on the eccentric shaft 1 and fixed with bolts. The inner ring of the eccentric wheel 3 meshes with the eccentric shaft through teeth.
[0014] Working principle: By using an eccentric shaft 1 as the driving component in the punch press, the eccentric shaft 1 converts the rotational motion into the reciprocating linear motion of the slider through the eccentric wheel 3, and realizes stroke adjustment, motion form conversion and mechanical action optimization, so as to achieve rapid cutting of the connecting rod bar.
[0015] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.
Claims
1. An eccentric shaft for a mechanical punch press for cutting connecting rod bars, and the body of the mechanical punch press, characterized in that, The drive shaft of the mechanical punch press body is an eccentric shaft. An eccentric section is provided at the center of the eccentric shaft. A drive connecting rod is mounted on the eccentric section. The drive connecting rod pushes the drive slider. A punching cutter is installed on the drive slider. The eccentric section drives the drive slider to reciprocate, which in turn drives the punching cutter to cut the connecting rod bar.
2. The eccentric shaft of a mechanical punch press for cutting connecting rod bars according to claim 1, characterized in that, An eccentric wheel is provided on the eccentric section, and the drive link is fitted onto the eccentric wheel through a connecting hole. The other end of the drive link is a circular surface, and the circular surface of the drive link pushes the drive slider to reciprocate under the drive of the eccentric wheel.
3. The eccentric shaft of a mechanical punch press for cutting connecting rod bars according to claim 2, characterized in that, The deflector wheel is mounted on the eccentric shaft and fixed with bolts, and the inner ring of the deflector wheel meshes with the eccentric shaft through teeth.