Small mechanical reciprocating mechanism
By designing the sliding cooperation of the side push punch and the side push insert with special shape, the mechanical principle of the small mechanical reciprocating mechanism is forced to return movement, which solves the problem of difficult application of the oblique wedge-plus spring structure in a small space, and realizes the High pressure exercise and long life stability.
Patent Information
- Application Number
- CN202421149121.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-24
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2034-05-24
AI Technical Summary
In existing mold and tooling designs, the structure of oblique wedge plus spring is difficult to apply in small spaces, occupying a large space and having many work steps.
Design a small mechanical reciprocating mechanism, including a fixing plate, a side push punch and a side push insert, and a multi-block structure formed from top to bottom, through a special shape of a side push punch and a side push insert The sliding fit of the parts achieves forced return movement of mechanical principles and avoids the use of spring assistance.
Reciprocating movement under medium and high pressure in small spaces is realized, and is suitable for side negative angle shaping, side flip holes, side pressure rivets and other operations. It has a long working life and high stability, avoiding space occupation and complex working steps of the spring structure.
Smart Images
Figure CN222288541U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of tooling and moulds, in particular to a small mechanical reciprocating mechanism. Background Art
[0002] In existing mold and tooling designs, most of the reciprocating structure designs are realized by using a structure of an inclined wedge and a spring. However, the combined structure of an inclined wedge and a spring often occupies a large space and requires more work steps for placing the inclined wedge, and is difficult to apply in a small space. Summary of the invention
[0003] The utility model aims to provide a small mechanical reciprocating mechanism.
[0004] In order to achieve the above purpose, the technical solution of the utility model is:
[0005] A small mechanical reciprocating mechanism, characterized in that it includes a fixed plate, a side push punch, a side push insert and a lower pad, the side push punch includes an upper mounting block, an upper rectangular block, an upper trapezoidal block, a lower trapezoidal block and a lower rectangular block integrally formed from top to bottom, the fixed plate is fixedly connected to the upper mounting block, the rear side of the upper rectangular block is flush with the rear side of the upper mounting block, the front side of the upper rectangular block is recessed backward relative to the upper mounting block, the upper trapezoidal block and the lower trapezoidal block are both right-angled trapezoidal structures, the hypotenuse on the rear side of the upper trapezoidal block is bent forward from top to bottom, the right-angled side on the front side of the upper trapezoidal block is flush with the upper rectangular block, the right-angled side on the rear side of the lower trapezoidal block is flush with the lower end of the hypotenuse of the upper trapezoidal block, and the lower trapezoidal The hypotenuse on the front side of the block starts from the lower end of the upper trapezoidal block and bends forward. The rear side of the lower rectangular block is flush with the right-angled side of the rear side of the lower trapezoidal block. The front side of the lower rectangular block is flush with the lower end of the hypotenuse on the front side of the lower trapezoidal block. A lower through hole is provided in the center of the lower pad. The width of the lower rectangular block matches the aperture of the lower through hole. The lower through hole stops the hypotenuse on the rear side of the upper trapezoidal block. The side push insert is located at the upper end of the lower pad. An upper through hole is provided in the center of the side push insert. The lower part of the front side of the upper through hole is provided with a lower inclined surface matching the hypotenuse on the front side of the lower trapezoidal block. The upper part of the rear side of the upper through hole is provided with an upper inclined surface matching the hypotenuse on the rear side of the upper trapezoidal block. The aperture of the upper through hole is the same as the width of the upper rectangular block and the lower rectangular block.
[0006] Furthermore, a mounting hole is provided in the center of the fixing plate, and the upper mounting block is matched and fixedly connected with the mounting hole.
[0007] Furthermore, a conical head is protruded backwards from the front side of the upper through hole, and the conical head slides in cooperation with the front sides of the upper rectangular block and the upper trapezoidal block.
[0008] The utility model designs a side push punch and a side push insert of special shapes, and slides the side push punch and the side push insert together. The reciprocating motion of the side push punch is forced to return by mechanical principles. The motion process can withstand greater pressure and can be applied to side negative angle shaping, side hole turning, and side pressure rivets. No spring assistance is required, and the working life is long and the stability is high. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] Figure 1 This is a schematic diagram of the initial structure of the utility model;
[0010] Figure 2 This is a schematic diagram of the structure of the side push punch of the utility model when it moves downward;
[0011] Figure 3 This is a schematic diagram of the structure of the utility model after the side push punch continues to move downward;
[0012] Figure 4 It is a schematic diagram of the structure of the side push punch of the utility model during the return stroke.
[0013] Reference numerals:
[0014] 1 fixing plate, 11 mounting holes,
[0015] 2 side push punch,
[0016] 21 upper mounting block, 22 upper rectangular block, 23 upper trapezoidal block, 24 lower trapezoidal block, 25 lower rectangular block,
[0017] 3 side push insert, 31 upper through hole, 32 lower slope, 33 upper slope, 34 conical head,
[0018] 4 lower pad, 41 lower through hole. DETAILED DESCRIPTION
[0019] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0020] The utility model discloses a small mechanical reciprocating mechanism, such as Figure 1~Figure 4As shown, it includes a fixed plate 1, a side thrust punch 2, a side thrust insert 3 and a lower pad 4. The side thrust punch 2 includes an upper mounting block 21, an upper rectangular block 22, an upper trapezoidal block 23, a lower trapezoidal block 24 and a lower rectangular block 25 which are integrally formed from top to bottom. The fixed plate 1 is fixedly connected to the upper mounting block 21. Preferably, a mounting hole 11 is provided in the center of the fixed plate 1, and the upper mounting block 21 is fixedly connected with the mounting hole 11. The side thrust insert 3 is located at the upper end of the lower pad 4, an upper through hole 31 is provided in the center of the side thrust insert 3, and a lower through hole 41 is provided in the center of the lower pad 4.
[0021] The rear side of the upper rectangular block 22 is flush with the rear side of the upper mounting block 21, and the front side of the upper rectangular block 22 is recessed backward relative to the upper mounting block 21. The upper trapezoidal block 23 and the lower trapezoidal block 24 are both right-angled trapezoidal structures. The hypotenuse on the rear side of the upper trapezoidal block 23 is bent forward from top to bottom, and the right-angled side on the front side of the upper trapezoidal block 23 is flush with the upper rectangular block 22. The right-angled side on the rear side of the lower trapezoidal block 24 is flush with the lower end of the hypotenuse on the upper trapezoidal block 23. The hypotenuse on the front side of the lower trapezoidal block 24 starts from the lower end of the upper trapezoidal block 23 and bends forward. The rear side of the lower rectangular block 25 is flush with the right-angled side on the rear side of the lower trapezoidal block 24, and the front side of the lower rectangular block 25 is flush with the lower end of the hypotenuse on the front side of the lower trapezoidal block 24. The width of the lower rectangular block 25 matches the aperture of the lower through hole 41, and the lower through hole 41 stops the hypotenuse on the rear side of the upper trapezoidal block 23.
[0022] The lower part of the front side of the upper through hole 31 is provided with a lower inclined surface 32 that cooperates with the front oblique side of the lower trapezoidal block 24, and the upper part of the rear side of the upper through hole 31 is provided with an upper inclined surface 33 that cooperates with the rear oblique side of the upper trapezoidal block 23. The aperture of the upper through hole 31 is the same as the width of the upper rectangular block 22 and the lower rectangular block 25. The front side of the upper through hole 31 protrudes backward and is provided with a conical head 34. The conical head 34 cooperates and slides with the front sides of the upper rectangular block 22 and the upper trapezoidal block 23, and the rear side of the upper through hole 31 cooperates and slides with the rear sides of the lower trapezoidal block 24 and the lower rectangular block 25.
[0023] like Figure 1 As shown, the initial state of the mechanism of the utility model is the open state, the fixed plate 1 and the side push punch 2 move downward, and the side push punch 2 is introduced into the upper through hole 31 of the side push insert 3 and the lower through hole 41 of the lower pad 4, see Figure 2 The lower through hole 41 provides lateral protection for the side push punch 2, so that the side push punch 2 will not break or deflect when subjected to lateral force, and will move downward intermittently.
[0024] Under the downward force of the side push punch 2, the rear bevel of the upper trapezoidal block 23 presses the upper bevel 33 of the side push insert 3 downward, so that the side push insert 3 moves backward as a whole, see Figure 3 The side-pushing punch 2 completes the side-pushing under the lateral limiting protection of the lower through hole 41 , and finally the bevel on the rear side of the upper trapezoidal block 23 stops at the lower through hole 41 .
[0025] When the utility model mechanism returns, the fixed plate 1 and the side push punch 2 return upward, and the lower trapezoidal block 24 presses the lower inclined surface 32 of the side push insert 3 upward, so that the side push insert 3 moves forward as a whole, completing the forced return. Figure 4 .
[0026] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.
Claims
1. A small mechanical reciprocating mechanism, characterized in that: The invention comprises a fixing plate (1), a side-pushing punch (2), a side-pushing insert (3) and a lower pad (4); the side-pushing punch (2) comprises an upper mounting block (21), an upper rectangular block (22), an upper trapezoidal block (23), a lower trapezoidal block (24) and a lower rectangular block (25) which are integrally formed from top to bottom; the fixing plate (1) is fixedly connected to the upper mounting block (21); the rear side of the upper rectangular block (22) is flush with the rear side of the upper mounting block (21); and the upper rectangular block ( The front side of the upper mounting block (22) is recessed rearwardly relative to the upper mounting block (21); the upper trapezoidal block (23) and the lower trapezoidal block (24) are both right-angled trapezoidal structures; the hypotenuse on the rear side of the upper trapezoidal block (23) is bent forward from top to bottom; the right-angled side on the front side of the upper trapezoidal block (23) is flush with the upper rectangular block (22); the right-angled side on the rear side of the lower trapezoidal block (24) is flush with the lower end of the hypotenuse of the upper trapezoidal block (23); the hypotenuse on the front side of the lower trapezoidal block (24) starts from the upper The lower end of the trapezoidal block (23) is bent forward, the rear side of the lower rectangular block (25) is flush with the right angle side of the rear side of the lower trapezoidal block (24), the front side of the lower rectangular block (25) is flush with the lower end of the front oblique side of the lower trapezoidal block (24), a lower through hole (41) is provided in the center of the lower pad (4), the width of the lower rectangular block (25) matches the hole diameter of the lower through hole (41), the lower through hole (41) stops the oblique side of the rear side of the upper trapezoidal block (23), and the side push The insert (3) is located at the upper end of the lower pad (4), an upper through hole (31) is provided at the center of the side push insert (3), a lower inclined surface (32) is provided at the lower portion of the front side of the upper through hole (31) to match the front side bevel of the lower trapezoidal block (24), and an upper inclined surface (33) is provided at the upper portion of the rear side of the upper through hole (31) to match the rear side bevel of the upper trapezoidal block (23), and the aperture of the upper through hole (31) is the same as the width of the upper rectangular block (22) and the lower rectangular block (25).
2. The small mechanical reciprocating mechanism according to claim 1, characterized in that: A mounting hole (11) is provided in the centre of the fixing plate (1), and the upper mounting block (21) is fixedly connected to the mounting hole (11) in cooperation with the mounting hole (11).
3. The small mechanical reciprocating mechanism according to claim 1, characterized in that: The front side of the upper through hole (31) protrudes backwards and is provided with a conical head (34), and the conical head (34) slides in cooperation with the front sides of the upper rectangular block (22) and the upper trapezoidal block (23).