CN109435305B - Main transmission mechanism of high-speed punch - Google Patents
Main transmission mechanism of high-speed punch Download PDFInfo
- Publication number
- CN109435305B CN109435305B CN201811528330.2A CN201811528330A CN109435305B CN 109435305 B CN109435305 B CN 109435305B CN 201811528330 A CN201811528330 A CN 201811528330A CN 109435305 B CN109435305 B CN 109435305B
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- Prior art keywords
- slide block
- rod
- connecting rod
- sliding block
- lever
- Prior art date
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- 230000007246 mechanism Effects 0.000 title claims abstract description 50
- 230000005540 biological transmission Effects 0.000 title claims abstract description 15
- 238000004080 punching Methods 0.000 claims abstract description 27
- 230000033001 locomotion Effects 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims description 4
- 238000005299 abrasion Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 4
- 230000002787 reinforcement Effects 0.000 abstract description 3
- 230000002146 bilateral effect Effects 0.000 abstract description 2
- 230000001965 increasing effect Effects 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000001133 acceleration Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
Classifications
-
- 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
- B30B1/02—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 lever mechanism
- B30B1/06—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 lever mechanism operated by cams, eccentrics, or cranks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J9/00—Forging presses
- B21J9/10—Drives for forging presses
- B21J9/18—Drives for forging presses operated by making use of gearing mechanisms, e.g. levers, spindles, crankshafts, eccentrics, toggle-levers, rack bars
-
- 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
- B30B1/10—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 toggle mechanism
- B30B1/14—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 toggle mechanism operated by cams, eccentrics, or cranks
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Presses And Accessory Devices Thereof (AREA)
- Press Drives And Press Lines (AREA)
Abstract
The invention discloses a main transmission mechanism of a high-speed punch press, wherein one end of a double crank with 180 degrees of phase angle difference is connected with an auxiliary slide block through an auxiliary connecting rod, the other end of the double crank is connected with a moving slide block through the main connecting rod, the double crank is connected with a motor, the auxiliary slide block and the moving slide block do linear motion on a vertical guide rail, a left multi-rod mechanism and a right multi-rod mechanism with the same structure are symmetrically arranged on the left side and the right side of the moving slide block, and the moving slide block is connected with a punching slide block through the two multi-rod mechanisms. The auxiliary connecting rod and the auxiliary sliding block of the main transmission mechanism disclosed by the invention balance the inertia force of the main connecting rod and the moving sliding block to the greatest extent; the bilateral symmetry multi-rod mechanism not only has obvious reinforcement effect, but also reduces the abrasion of the stamping sliding block and the guide rail; the lever mechanism is adopted, so that the force increasing effect is achieved, and the balance slide block balances the inertia force of the stamping slide block to the greatest extent; the bottom dead center position of the stamping slide block can be adjusted by changing the position of the adjusting slide block.
Description
Technical Field
The invention relates to the technical field of high-speed punching machines, in particular to a main transmission mechanism of a high-speed punching machine.
Background
As a high-efficiency forging and pressing device, the high-speed punch is widely applied to important industrial fields such as aerospace, automobile manufacturing, transportation, metallurgical chemical industry and the like. Particularly, in recent years, the rapid development of the manufacturing industry which takes automobiles as taps greatly promotes the progress of the stamping industry in China. Along with the acceleration of global pace of the market, competition in the same industry is more and more intense, in order to improve production efficiency and reduce production cost, users put forward higher requirements on stamping speed, and the birth of a high-speed punch just meets the market demands.
Compared with the traditional punching machine, the high-speed punching machine has the advantages that the punching speed of the traditional punching machine is low, the inertia force is small, and the inertia force is synchronously improved although the punching speed is improved; if the moving parts cannot reach dynamic balance, the inertia force will generate periodic exciting force to the high-speed punch, thereby causing vibration of the high-speed punch, and finally causing damage to the punch and affecting the punching precision. In addition, the traditional mechanical punching machine mostly adopts a crank sliding block mechanism, the speed and the acceleration of a sliding block in the working stroke are large and are not easy to adjust, and longer forming time can not be provided for the punching of a workpiece; and moreover, the modified punch press sliding block also bears the acting force in the horizontal direction, so that the sliding block guide rail is easy to wear, and the stamping precision is degraded faster.
Disclosure of Invention
In order to solve the problems, the invention provides a main transmission mechanism of a high-speed punch press, which realizes breakthrough in balancing the structure and reducing the internal force so as to achieve better balance of inertial force.
In order to achieve the technical purpose and the technical effect, the invention is realized by the following technical scheme: a main transmission mechanism of a high-speed punch press is characterized in that one end of a double crank with 180 degrees of phase angle difference is connected with an auxiliary sliding block through an auxiliary connecting rod, the other end of the double crank is connected with a moving sliding block through the main connecting rod, the double crank is connected with a motor, the auxiliary sliding block and the moving sliding block do linear motion on a vertical guide rail, a left multi-rod mechanism and a right multi-rod mechanism with the same structure are symmetrically arranged on the left side and the right side of the moving sliding block, and the moving sliding block is connected with a punching sliding block through the multi-rod mechanism.
Further, the right multi-rod mechanism comprises a right push rod, one end of the right push rod is connected with the right side of the moving slide block, the other end of the right push rod is connected with the lower end of the right upper swing rod and the upper end of the right lower swing rod, the upper end of the right upper swing rod is installed on the punch press body through a hinge, the lower end of the right lower swing rod is connected with a right lever through a hinge, the right lever is installed on the punch press body through a hinge, the hinge is further used as a fulcrum of the right lever mechanism, two sides of the fulcrum are respectively connected with the right balance slide block and the punching slide block through a right upper connecting rod and a right lower connecting rod, and the right balance slide block and the punching slide block do linear motion on a vertical guide rail.
Further, the left multi-rod mechanism comprises a left push rod, one end of the left push rod is connected with the left side of the moving slide block, the other end of the left push rod is connected with the lower end of the left upper swing rod and the upper end of the left lower swing rod, the upper end of the left upper swing rod is installed on the punch press body through a hinge, the lower end of the left lower swing rod is connected with a left lever through a hinge, the left lever is installed on the punch press body through a hinge, the hinge is further used as a fulcrum of the left lever mechanism, two sides of the fulcrum are respectively connected with the left balance slide block and the punching slide block through a left upper connecting rod and a left lower connecting rod, and the left balance slide block moves linearly on a vertical guide rail.
Further, the fulcrum of the right lever mechanism and the fulcrum of the left lever mechanism are respectively arranged on the right adjusting slide block and the left adjusting slide block, and the right adjusting slide block and the left adjusting slide block can do linear motion along the vertical guide rail.
The beneficial effects of the invention are as follows:
1. An auxiliary connecting rod and an auxiliary sliding block are arranged above the double crank, so that the inertia force of the main connecting rod and the moving sliding block is balanced to the greatest extent;
2. The bilateral symmetry multi-rod mechanism has obvious reinforcement effect, improves the rigidity of the mechanism, simultaneously eliminates the acting force in the horizontal direction between the stamping sliding block and the guide rail, reduces the abrasion of the stamping sliding block and the guide rail, and improves the precision retention of the high-speed punch;
3. The lever mechanism is adopted, so that an obvious reinforcement effect is achieved, and the balance slide block is arranged at the other end of the lever, so that the inertia force of the stamping slide block is balanced to the greatest extent;
4. The fulcrum of the lever mechanism is arranged on the adjusting slide block, and the position of the bottom dead center of the stamping slide block can be adjusted by changing the position of the adjusting slide block;
5. The upper swing rod and the lower swing rod can be punched to reach the bottom dead center position twice in one reciprocating swing period through the parameters of the design mechanism, so that the running speed of the crank slider mechanism part is reduced to half of the original speed, particularly the rotating speed of a crank, the balance of inertia force is easier, and the abrasion and the temperature rise of the crank can be reduced.
Drawings
Fig. 1 is a schematic structural diagram of a main transmission mechanism of a high-speed punch.
Wherein, 1 is a double crank, 2 is a main connecting rod, 3 is an auxiliary connecting rod, 4 is an auxiliary sliding block, 5 is a moving sliding block, 6-1 is a right push rod, 6-2 is a left push rod, 7-1 is a right upper swing rod, 7-2 is a left upper swing rod, 8-1 is a right lower swing rod, 8-2 is a left lower swing rod, 9-1 is a right lever, 9-2, left lever, 10-1, right lower link, 10-2, left lower link, 11, ram slide, 12-1, right upper link, 12-2, left upper link, 13-1, right balancing slide, 13-2, left balancing slide, 14-1, right adjustment slide, 14-2, left adjustment slide.
Detailed Description
The following description of the preferred embodiment of the present invention will be presented in conjunction with the accompanying fig. 1 to make the advantages and features of the present invention more readily understood by those skilled in the art, and to make a clear and definite definition of the scope of the present invention.
In order to better realize the inertia force balance of a main transmission mechanism of a high-speed punch, the invention discloses the main transmission mechanism of the high-speed punch, wherein one end of a double crank 1 with 180 degrees of phase angle difference is connected with an auxiliary slide block 4 through an auxiliary connecting rod 3, the other end of the double crank is connected with a moving slide block 5 through a main connecting rod 2, and the auxiliary slide block 4 and the moving slide block 5 do linear motion on a guide rail. When the device works, the motor drives the double cranks 1 to rotate, the double cranks 1 respectively drive the auxiliary slide block 4 and the moving slide block 5 to reciprocate up and down through the auxiliary connecting rod 3 and the main connecting rod 2, and the moving direction of the auxiliary slide block 4 and the moving slide block 5 is opposite to the direction of the inertial force, so that the purpose of balancing the inertial force is achieved. The same multi-bar mechanism is symmetrically arranged on the left and right sides of the moving slide 5, by means of which the moving slide 5 is connected to the punching slide 11.
The right side of the moving slide block 5 is connected with the lower end of the upper right swing rod 7-1 and the upper end of the lower right swing rod 8-1 through a right push rod 6-1, the upper end of the upper right swing rod 7-1 is mounted on a punch press body through a hinge, and the lower end of the lower right swing rod 8-1 is connected with the right lever 9-1 through a hinge; the right lever 9-1 is arranged on the punch press body through a hinge, the hinge also serves as a fulcrum of the right lever mechanism, and two sides of the fulcrum are respectively connected with the right balance slide block 13-1 and the punching slide block 11 through the right upper connecting rod 12-1 and the right lower connecting rod 10-1.
During normal operation, the moving slide block 5 drives the upper right swing rod 7-1 and the lower right swing rod 8-1 to do reciprocating swing through the right push rod 6-1, the lower right swing rod 8-1 drives the right lever 9-1 to do reciprocating rotation around the fulcrum, and meanwhile, the right lever 9-1 drives the right balance slide block 13-1 and the punching slide block 11 to do up-and-down reciprocating linear motion through the upper right connecting rod 12-1 and the lower right connecting rod 10-1 respectively, and the moving direction and the inertial force direction of the right balance slide block 13-1 and the punching slide block 11 are opposite, so that the aim of balancing inertial force is achieved.
The left sides of the balance moving slide block 5 and the stamping slide block 11 are provided with a multi-rod mechanism symmetrical to the right side, the acting force of the right push rod 6-1 and the left push rod 6-2 on the horizontal direction of the moving slide block 5 is completely counteracted, the acting force of the right lower connecting rod 10-1 and the left lower connecting rod 10-2 on the horizontal direction of the stamping slide block 11 is completely counteracted, the abrasion of the moving slide block 5 and the guide rail of the stamping slide block 11 is reduced to the greatest extent, and the maintainability of stamping precision is improved.
In the main transmission mechanism of the high-speed punch press, the fulcrums of the right lever mechanism and the left lever mechanism are respectively arranged on the right adjusting slide block 14-1 and the left adjusting slide block 14-2, and the bottom dead center position of the punching slide block 11 can be adjusted by changing the positions of the adjusting slide blocks 14-1 and 14-2.
The moving slide block 5 of the main transmission mechanism of the high-speed punch press is driven by the double crank 1 and the main connecting rod 2 to reciprocate up and down, the moving slide block 5 drives the upper swing rods 7-1, the lower swing rods 7-2, 8-1 and 8-2 to swing left and right through the symmetrically arranged push rods 6-1 and 6-2, thereby driving the levers 9-1 and 9-2 to rotate, finally driving the punching slide block 11 to reciprocate up and down in a straight line, a workpiece is placed under the punching slide block 11, and the up and down movement of the punching slide block 11 realizes the punching processing of the workpiece. The reasonable design of the size of the moving component can enable the axes of the upper swing rod and the lower swing rod to coincide twice in one movement period, so that the stamping slide block 11 can be stamped twice when the crank 1 rotates for one circle, and the crank rotating speed can be reduced to half of the original speed at the rated stamping speed, which is beneficial to balancing the inertia force of part of moving components.
The foregoing description is only illustrative of the present invention and is not intended to limit the scope of the invention, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present invention.
Claims (2)
1. The working method of the main transmission mechanism of the high-speed punch press is characterized in that the transmission mechanism has the following structure:
One end of a double crank (1) with 180 degrees of phase angle difference is connected with an auxiliary sliding block (4) through an auxiliary connecting rod (3), the other end of the double crank is connected with a moving sliding block (5) through a main connecting rod (2), the auxiliary sliding block (4) and the moving sliding block (5) do linear motion on a vertical guide rail, a left multi-rod mechanism and a right multi-rod mechanism with the same structure are symmetrically arranged on the left side and the right side of the moving sliding block (5), and the moving sliding block (5) is connected with a stamping sliding block (11) through the two multi-rod mechanisms;
The right multi-rod mechanism comprises a right push rod (6-1) with one end connected with the right side of the moving slide block (5), the other end of the right push rod (6-1) is connected with the lower end of a right upper swing rod (7-1) and the upper end of a right lower swing rod (8-1), the upper end of the right upper swing rod (7-1) is mounted on a punch press body through a hinge, and the lower end of the right lower swing rod (8-1) is connected with a right lever (9-1) through a hinge; the right lever (9-1) is arranged on the punch press body through a hinge, the hinge is used as a fulcrum of a right lever mechanism, two sides of the fulcrum are respectively connected with the right balance slide block (13-1) and the punching slide block (11) through a right upper connecting rod (12-1) and a right lower connecting rod (10-1), and the right balance slide block (13-1) and the punching slide block (11) do linear motion on a vertical guide rail;
The left multi-rod mechanism comprises a left push rod (6-2) with one end connected with the left side of the moving slide block (5), the other end of the left push rod (6-2) is connected with the lower end of the left upper swing rod (7-2) and the upper end of the left lower swing rod (8-2), the upper end of the left upper swing rod (7-2) is mounted on the punch press body through a hinge, and the lower end of the left lower swing rod (8-2) is connected with the left lever (9-2) through a hinge; the left lever (9-2) is arranged on the punch press body through a hinge, the hinge is used as a fulcrum of a left lever mechanism, two sides of the fulcrum are respectively connected with the left balance slide block (13-2) and the punching slide block (11) through the left upper connecting rod (12-2) and the left lower connecting rod (10-2), and the left balance slide block (13-2) moves linearly on a vertical guide rail;
The working process is as follows: the motor drives the double cranks to rotate, the double cranks drive the auxiliary sliding block and the moving sliding block to reciprocate up and down through the auxiliary connecting rod and the main connecting rod, the moving sliding block drives the upper right swinging rod, the upper left swinging rod, the lower right swinging rod and the lower left swinging rod to swing left and right through the symmetrically arranged right pushing rod and the left pushing rod, so that the right lever and the left lever are driven to reciprocate around the supporting point, and the right lever and the left lever drive the right balancing sliding block, the left balancing sliding block and the stamping sliding block to reciprocate up and down through the upper right connecting rod, the lower right connecting rod, the upper left connecting rod and the lower left connecting rod respectively.
2. The working method of the main transmission mechanism of the high-speed punch press according to claim 1, wherein the fulcrum of the right lever mechanism and the fulcrum of the left lever mechanism are respectively arranged on a right adjusting slide block (14-1) and a left adjusting slide block (14-2), and the right adjusting slide block (14-1) and the left adjusting slide block (14-2) can do linear motion along a vertical guide rail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811528330.2A CN109435305B (en) | 2018-12-13 | 2018-12-13 | Main transmission mechanism of high-speed punch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811528330.2A CN109435305B (en) | 2018-12-13 | 2018-12-13 | Main transmission mechanism of high-speed punch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109435305A CN109435305A (en) | 2019-03-08 |
| CN109435305B true CN109435305B (en) | 2024-05-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811528330.2A Active CN109435305B (en) | 2018-12-13 | 2018-12-13 | Main transmission mechanism of high-speed punch |
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| Country | Link |
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| CN (1) | CN109435305B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114889185A (en) * | 2022-05-27 | 2022-08-12 | 东莞市泰基山机械设备有限公司 | Multi-connecting-rod high-speed punch press |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3062574U (en) * | 1999-03-30 | 1999-10-08 | 瑛瑜精密工業股▲ふん▼有限公司 | 2-point double toggle joint mechanism |
| WO2007090668A1 (en) * | 2006-02-10 | 2007-08-16 | Pressenservice Scheitza Gmbh | Servopress |
| CN101543858A (en) * | 2009-05-08 | 2009-09-30 | 南京理工大学 | High-speed fine press |
| CN102145369A (en) * | 2010-12-09 | 2011-08-10 | 江苏省徐州锻压机床厂集团有限公司 | Driving mechanism of high-speed precision press |
| CN102328448A (en) * | 2011-09-30 | 2012-01-25 | 上海交通大学 | Multi-connecting-rod mechanical press with driven by three parallel servo motor inputs |
| CN102975386A (en) * | 2012-11-27 | 2013-03-20 | 南京理工大学 | High-speed precise numerical-control stamping machine mechanismstructure capable of realizing dynamic lower dead point precision compensation |
| CN210234077U (en) * | 2018-12-13 | 2020-04-03 | 常州纺织服装职业技术学院 | Main transmission mechanism of high-speed punch press |
-
2018
- 2018-12-13 CN CN201811528330.2A patent/CN109435305B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3062574U (en) * | 1999-03-30 | 1999-10-08 | 瑛瑜精密工業股▲ふん▼有限公司 | 2-point double toggle joint mechanism |
| WO2007090668A1 (en) * | 2006-02-10 | 2007-08-16 | Pressenservice Scheitza Gmbh | Servopress |
| CN101543858A (en) * | 2009-05-08 | 2009-09-30 | 南京理工大学 | High-speed fine press |
| CN102145369A (en) * | 2010-12-09 | 2011-08-10 | 江苏省徐州锻压机床厂集团有限公司 | Driving mechanism of high-speed precision press |
| CN102328448A (en) * | 2011-09-30 | 2012-01-25 | 上海交通大学 | Multi-connecting-rod mechanical press with driven by three parallel servo motor inputs |
| CN102975386A (en) * | 2012-11-27 | 2013-03-20 | 南京理工大学 | High-speed precise numerical-control stamping machine mechanismstructure capable of realizing dynamic lower dead point precision compensation |
| CN210234077U (en) * | 2018-12-13 | 2020-04-03 | 常州纺织服装职业技术学院 | Main transmission mechanism of high-speed punch press |
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| CN109435305A (en) | 2019-03-08 |
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