CN110466184B - Transmission mechanism of punch feeder - Google Patents
Transmission mechanism of punch feeder Download PDFInfo
- Publication number
- CN110466184B CN110466184B CN201910920275.XA CN201910920275A CN110466184B CN 110466184 B CN110466184 B CN 110466184B CN 201910920275 A CN201910920275 A CN 201910920275A CN 110466184 B CN110466184 B CN 110466184B
- Authority
- CN
- China
- Prior art keywords
- feeder
- rocker
- driving
- shaft
- transmission shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 63
- 239000000463 material Substances 0.000 abstract description 9
- 238000004080 punching Methods 0.000 description 14
- 238000000034 method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B1/00—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
- B30B1/26—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by cams, eccentrics, or cranks
- B30B1/266—Drive systems for the cam, eccentric or crank axis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/30—Feeding material to presses
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Press Drives And Press Lines (AREA)
Abstract
A drive mechanism for a punch feeder comprising: the driving shaft (1), the transmission block (2) and the driven shaft (3), wherein the driving shaft (1) is provided with a driving rod (11) and a driving disc (12), the driving disc (12) is fixed at the rear end of the driving rod (11), and the driving disc (12) is provided with a track (13); the transmission block (2) is movably arranged in the track (13), and the transmission block (2) is provided with a through hole (21); the driven shaft (3) is provided with a rocker (31) and a feeder transmission shaft (32), the driving rod (11), the rocker (31) and the feeder transmission shaft (32) are mutually parallel, the rocker (31) is fixed at the front end of the feeder transmission shaft (32), the rocker (31) is eccentrically arranged relative to the feeder transmission shaft (32), and the rocker (31) is inserted into the through hole (21). The transmission mechanism can finish feeding at a small angle when the crankshaft rotates, so that on one hand, false feeding caused by interference of materials with a die guide pin and a punch during feeding is avoided, and on the other hand, higher stamping speed is realized on the basis of smaller stroke.
Description
Technical Field
The invention relates to a transmission mechanism, in particular to a transmission mechanism of a punching machine feeder.
Background
The punching machine feeder is mainly used for conveying granular materials, powder materials and sheet materials, and when the punching machine works, the feeder conveys materials into a die, and then the die is closed through a punching head to finish punching operation.
For crankshaft type punching machines, the feeder is driven by a cam clamp driven by a crankshaft, wherein the feeder generally feeds when the crankshaft rotates to 270-90 degrees, and because the angular speed of the crankshaft is fixed, the feeding time of the feeder is relatively fixed (namely, the time for rotating the crankshaft by 180 degrees).
However, for punches with shorter die opening times and longer die closing times, there may be situations where the feeder begins feeding while the punch has not yet moved away from the material, or where the punch and die guide pin have been in contact with the material but feeding has not yet been completed. The existing punching machine can adopt a larger punching stroke to avoid the occurrence of the two conditions, but the larger punching stroke is not beneficial to the high-speed production of the punching machine.
Disclosure of Invention
The technical scheme of the invention is to solve the above problems by providing a transmission mechanism of a feeder of a punching machine, the transmission mechanism comprises: the driving shaft is provided with a driving rod and a driving disc, the driving disc is fixed at the rear end of the driving rod, and the driving disc is provided with a track; the transmission block is movably arranged in the track and is provided with a through hole; the driven shaft is provided with a rocker and a feeder transmission shaft, the driving rod, the rocker and the feeder transmission shaft are mutually parallel, the rocker is fixed at the front end of the feeder transmission shaft, the rocker is eccentrically arranged relative to the feeder transmission shaft, and the rocker is inserted into the through hole.
Further, the driving rod and the transmission shaft of the feeder are provided with bearings.
Further, the axial distance between the rocker and the transmission shaft of the feeder is greater than the axial distance between the driving rod and the transmission shaft of the feeder.
After the technical scheme is adopted, the invention has the following effects: the transmission mechanism with the structure can finish feeding at a small angle when the crankshaft of the punch press rotates, so that on one hand, false feeding caused by interference of materials with a die guide pin and a punch during feeding is avoided, and on the other hand, higher punching speed is realized on the basis of smaller stroke.
Drawings
FIG. 1 is a schematic illustration of a transmission mechanism according to the present invention;
FIG. 2 is a schematic view of a drive shaft according to the present invention;
FIG. 3 is a schematic diagram of a drive block according to the present invention;
FIG. 4 is a schematic view of a driven shaft according to the present invention;
FIG. 5a is a rear perspective view of the transmission mechanism of the present invention at top dead center;
FIG. 5b is a rear perspective view of the transmission of the present invention between top dead center and bottom dead center;
FIG. 5c is a rear perspective view of the transmission mechanism of the present invention at bottom dead center;
fig. 5d is a rear perspective view of the transmission mechanism according to the present invention between the bottom dead center and the top dead center.
Detailed Description
It is specifically noted that the terms "first," "second," and "third" are used herein for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", and "a third" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise. All directional indications (such as up, down, left, right, front, rear … …) in embodiments of the present invention are merely used to explain the relative positional relationship, movement, etc. between the components in a particular gesture, and if the particular gesture changes, the directional indication changes accordingly.
The technical scheme of the invention is further described by the following examples:
the invention provides a transmission mechanism of a punch feeder, which is shown in combination with figures 1-4, and comprises: the driving shaft 1, the transmission block 2 and the driven shaft 3, wherein the driving shaft 1 is provided with a driving rod 11 and a driving disc 12, the driving disc 12 is fixed at the rear end of the driving rod 11, and the driving disc 12 is provided with a track 13; the transmission block 2 is movably arranged in the track 13, and the transmission block 2 is provided with a through hole 21; the driven shaft 3 has a rocker 31 and a feeder transmission shaft 32, the driving lever 11, the rocker 31 and the feeder transmission shaft 32 are parallel to each other, the rocker 31 is fixed at the front end of the feeder transmission shaft 32, and the rocker 31 is eccentrically disposed with respect to the feeder transmission shaft 32 (i.e., the central axes of the two are not on the same straight line), the rocker 31 is inserted into the through hole 21. The driving rod 11 is connected with a crankshaft of the machine tool and synchronously rotates, and the feeder transmission shaft 32 is connected with a feeding wheel of the driving feeder and plays a role in driving and feeding.
The positions of the driving rod 11 and the feeder transmission shaft 32 are relatively fixed, when the driving rod 11 rotates along with the crankshaft of the machine tool, the transmission block 2 moves in the track 13 of the driving disc 12, so that the rocker 31 is driven to rotate (but not uniformly rotate) around the feeder transmission shaft 32, and finally the feeder transmission shaft 32 is driven to rotate. As shown in fig. 5a, the driving rod 11 rotates clockwise when seen from the direction in the drawing, and the rocker 31 is located at the top dead center (i.e. the highest position) at the beginning of the rotation, wherein the axial distance D1 between the driving rod 11 and the feeder transmission shaft 32 is kept constant in the whole process because the positions of the driving rod 11 and the feeder transmission shaft 32 are relatively fixed, and the axial distance D2 between the rocker 31 and the feeder transmission shaft 32 is kept constant in the whole process because the rocker 31 is rigidly connected with the feeder transmission shaft 32, and at the moment, the axial distance D3 between the rocker 31 and the driving rod 11 is at the maximum; as shown in fig. 5b, after the rotation starts, the axial distance D3 between the rocker 31 and the driving rod 11 gradually decreases during the rotation of the rocker 31 to the right; as shown in fig. 5c, when the rocker 31 is located at the bottom dead center (i.e., the lowest position), the axial distance D3 of the rocker 31 from the driving lever 11 is at a minimum value; as shown in fig. 5D, when the rocker 31 rotates to the left, the axial distance D3 between the rocker 31 and the driving lever 11 gradually increases until the rocker 31 returns to the top dead center, completing one cycle. In the above process, the angular velocity of the driving rod 11 is kept unchanged, when the rocker 31 is located at the top dead center, because the axial distance D3 between the rocker 31 and the driving rod 11 is at the maximum value, the stroke of the rocker 31 is the maximum, so that the feeder transmission shaft 32 rotates by the maximum angle, that is, the feeder transmission shaft 32 rotates by a larger angle under the condition that the driving rod 11 rotates by a smaller angle; when the rocker 31 is at the bottom dead center, since the axial distance D3 between the rocker 31 and the driving lever 11 is at a minimum value, the stroke of the rocker 31 is at a minimum, so that the feeder driving shaft 32 is rotated by a minimum angle, that is, the feeder driving shaft 32 is rotated by a small angle in the case that the driving lever 11 is rotated by a large angle. The transmission mechanism with the structure can finish feeding at a small angle when the crankshaft of the punch press rotates, namely, the quick feeding is realized when the die is opened, the feeding speed is reduced when the die is closed, the transmission mechanism is perfectly matched with the die, and the phenomenon that materials are interfered with the guide pin and the punch of the die to cause false feeding during feeding is avoided.
Specifically, the drive rod 11 and the feeder drive shaft 32 are provided with bearings 4. The bearing 4 can ensure the smoothness and stability of the rotation of the driving rod 11 and the feeder transmission shaft 32.
Specifically, the axial distance D2 between the rocker 31 and the feeder drive shaft 32 is greater than the axial distance D1 between the drive lever 11 and the feeder drive shaft 32. By adjusting the ratio of the axial center distance between the driving rod 11 and the transmission shaft 32 of the feeder, different feeding curves are achieved, so that the feeding speed is adjusted, and a higher punching speed is realized.
Therefore, the transmission mechanism with the structure can finish feeding at a small angle when the punch crankshaft rotates, so that on one hand, false feeding caused by interference of materials with the die guide pin and the punch during feeding is avoided, and on the other hand, higher punching speed is realized on the basis of smaller stroke.
The above embodiments are only preferred examples of the present invention and are not intended to limit the scope of the present invention, so that all equivalent changes or modifications of the structure, characteristics and principles described in the claims are included in the scope of the present invention.
Claims (1)
1. The utility model provides a drive mechanism of punch press feeder which characterized in that: the transmission mechanism comprises: the driving shaft (1), the transmission block (2) and the driven shaft (3), wherein the driving shaft (1) is provided with a driving rod (11) and a driving disc (12), the driving disc (12) is fixed at the rear end of the driving rod (11), and the driving disc (12) is provided with a track (13); the transmission block (2) is movably arranged in the track (13), and the transmission block (2) is provided with a through hole (21); the driven shaft (3) is provided with a rocker (31) and a feeder transmission shaft (32), the driving rod (11), the rocker (31) and the feeder transmission shaft (32) are mutually parallel, the rocker (31) is fixed at the front end of the feeder transmission shaft (32), the rocker (31) is eccentrically arranged relative to the feeder transmission shaft (32), and the rocker (31) is inserted into the through hole (21); the driving rod (11) and the transmission shaft (32) of the feeder are provided with bearings (4); the axial distance between the rocker (31) and the feeder transmission shaft (32) is greater than the axial distance between the driving rod (11) and the feeder transmission shaft (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910920275.XA CN110466184B (en) | 2019-09-26 | 2019-09-26 | Transmission mechanism of punch feeder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910920275.XA CN110466184B (en) | 2019-09-26 | 2019-09-26 | Transmission mechanism of punch feeder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110466184A CN110466184A (en) | 2019-11-19 |
| CN110466184B true CN110466184B (en) | 2024-03-22 |
Family
ID=68516691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910920275.XA Active CN110466184B (en) | 2019-09-26 | 2019-09-26 | Transmission mechanism of punch feeder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110466184B (en) |
Citations (20)
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|---|---|---|---|---|
| SU804524A1 (en) * | 1979-04-11 | 1981-02-15 | Воронежское Производственное Объединениепо Выпуску Кузнечно-Прессовогооборудования Им. M.И.Калинина | Assembly for securing eccentric bush on driving shaft of high-speed double-acting press |
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| JP2003320488A (en) * | 2002-05-01 | 2003-11-11 | Murata Mach Ltd | Motor driven type link press |
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| DE102005057286A1 (en) * | 2005-12-01 | 2007-06-06 | Klopmeier, Wilhelm, Dipl.-Ing. | Gear for generation of rotary motion, has eccentric ring gear pivoted to drive rotates around centrally positioned pinion of drive shaft such that both wheels are in interference |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN110466184A (en) | 2019-11-19 |
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