CN113119504A - Multi-toggle rod type servo press with precisely adjustable bottom dead center - Google Patents
Multi-toggle rod type servo press with precisely adjustable bottom dead center Download PDFInfo
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- CN113119504A CN113119504A CN202110423546.8A CN202110423546A CN113119504A CN 113119504 A CN113119504 A CN 113119504A CN 202110423546 A CN202110423546 A CN 202110423546A CN 113119504 A CN113119504 A CN 113119504A
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- rod
- driving rod
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- 230000009286 beneficial effect Effects 0.000 description 1
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- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Press Drives And Press Lines (AREA)
Abstract
The invention discloses a multi-toggle rod type servo press with a precisely adjustable bottom dead center, which comprises a main driving rod, a left auxiliary driving rod, a right auxiliary driving rod, a slide block and first to fourth toggle rods, wherein the lower end of the main driving rod is respectively hinged with the upper end of a first toggle rod and the upper end of a second toggle rod, the lower end of the first toggle rod is respectively hinged with the lower end of the left auxiliary driving rod and the upper end of a third toggle rod, the lower end of the second toggle rod is respectively hinged with the lower end of the right auxiliary driving rod and the upper end of the fourth toggle rod, the lower end of the third toggle rod and the lower end of the fourth toggle rod are respectively hinged with the slide block capable of moving up and down, the main driving rod is positioned on a central axis of the slide block, the left auxiliary driving rod, the right auxiliary driving rod and the first to fourth toggle rods are symmetrical about the central axis of the slide block, the main driving rod is driven by a main. The invention realizes the dynamic compensation of the bottom dead center of the slide block, the motion mode of the slide block can be set at will, and the burden of a single drive motor is reduced.
Description
Technical Field
The invention belongs to the field of servo presses, and particularly relates to a multi-toggle rod type servo press with a precisely adjustable bottom dead center.
Background
The sliding block movement mode of the prior toggle rod type servo press is relatively fixed, the bottom dead center of the prior toggle rod type servo press can not be precisely adjusted, and the movement mode is fixed, so that the prior toggle rod type servo press is not suitable for development requirements.
Disclosure of Invention
The invention aims to provide a multi-toggle rod type servo press with a precisely adjustable bottom dead center, which realizes dynamic compensation of the bottom dead center of a slide block, can be set at will in a slide block motion mode, and reduces the torque and instantaneous power of a single driving motor.
The technical scheme adopted by the invention is as follows:
a multi-toggle rod type servo press with a precisely adjustable bottom dead center comprises a main driving rod, a left auxiliary driving rod, a right auxiliary driving rod, a sliding block and first to fourth toggle rods, wherein the lower end of the main driving rod is hinged to the upper end of the first toggle rod and the upper end of the second toggle rod respectively, the lower end of the first toggle rod is hinged to the lower end of the left auxiliary driving rod and the upper end of the third toggle rod respectively, the lower end of the second toggle rod is hinged to the lower end of the right auxiliary driving rod and the upper end of the fourth toggle rod respectively, the lower end of the third toggle rod and the lower end of the fourth toggle rod are hinged to the sliding block capable of moving up and down respectively, the main driving rod is located on a central axis of the sliding block, the left auxiliary driving rod, the right auxiliary driving rod and the first to fourth toggle rods are symmetrical about a central axis of the sliding block, the main driving rod is driven to move up and.
As an improvement of the invention, the upper end of the left auxiliary driving rod and the upper end of the right auxiliary driving rod are respectively driven by respective auxiliary servo motors to move.
Preferably, the upper end of the left auxiliary driving rod and the upper end of the right auxiliary driving rod are respectively hinged on the left slider and the right slider, and the left slider and the right slider are respectively driven by respective auxiliary servo motors to move left and right.
Preferably, the upper end of the left auxiliary driving rod and the upper end of the right auxiliary driving rod are respectively hinged on a left crank and a right crank, and the left crank and the right crank are respectively driven by respective auxiliary servo motors to rotate.
As another improvement of the invention, the upper end of the left auxiliary driving rod and the upper end of the right auxiliary driving rod are driven by the same auxiliary servo motor to move synchronously.
Preferably, the upper end of the left auxiliary driving rod and the upper end of the right auxiliary driving rod are respectively hinged on the left slider and the right slider, the left slider and the right slider are symmetrically hinged on the synchronizing wheel through the left connecting rod and the right connecting rod respectively, the synchronizing wheel is driven to rotate by a single auxiliary servo motor, and the auxiliary servo motor drives the left slider and the right slider to synchronously move left and right through the synchronizing wheel, the left connecting rod and the right connecting rod.
The invention has the beneficial effects that:
the main servo motor drives the main driving rod to move up and down, the main driving rod drives the first toggle rod and the second toggle rod to move simultaneously, the first toggle rod and the second toggle rod drive the third toggle rod and the fourth toggle rod to move simultaneously and respectively, the third toggle rod and the fourth toggle rod drive the slide block to move up and down together, when the left auxiliary driving rod and the right auxiliary driving rod are horizontal, the slide block reaches the uppermost position, namely, is positioned at an upper dead point, when the left auxiliary driving rod and the right auxiliary driving rod are vertical, the slide block reaches the lowermost position, namely, is positioned at a lower dead point, because the upper end of the left auxiliary driving rod and the upper end of the right auxiliary driving rod are both movable hinge points and are driven by the auxiliary servo motor to move, the positions of the upper end of the left auxiliary driving rod and the upper end of the right auxiliary driving rod can be accurately adjusted through the auxiliary servo motor, and further, the position of the lower dead, the performance and the applicability of the press machine are greatly improved, and the torque and the instantaneous power of a single driving motor are reduced.
Drawings
Fig. 1 is a schematic view of a multi-toggle servo press with a precisely adjustable bottom dead center according to an embodiment of the present invention, in which a main servo motor is omitted for convenience of observation.
Fig. 2 is a schematic view of a multi-toggle servo press with a precisely adjustable bottom dead center according to a second embodiment of the present invention, in which a main servo motor and an auxiliary servo motor are omitted for convenience of observation.
Fig. 3 is a schematic view of a multi-toggle servo press with a precisely adjustable bottom dead center according to a third embodiment of the present invention, in which the left connecting rod, the right connecting rod, and the synchronizing wheel are shown by dotted lines for easy observation, and the main servo motor and the sub-servo motor are omitted.
In the figure: 1-a main drive rod; 2-a first toggle lever; 3-a second toggle link; 4-left auxiliary driving rod; 5-right auxiliary driving rod; 6-a third toggle link; 7-a fourth toggle lever; 8-a slide block; 9-left slider; 10-right slider; 11-auxiliary servo motor; 12-left crank; 13-right crank; 14-a left link; 15-right connecting rod; 16-synchronizing wheel.
Detailed Description
The invention is further described below with reference to the figures and examples.
As shown in fig. 1 to 3, in the first to third embodiments, the multi-toggle servo press with the precision adjustable bottom dead center includes a main driving rod 1, a left auxiliary driving rod 4, a right auxiliary driving rod 5, a slide block 8, and first to fourth toggle levers (2, 3, 6, 7), wherein the lower end of the main driving rod 1 is hinged to the upper end of the first toggle lever 2 and the upper end of the second toggle lever 3, respectively, the lower end of the first toggle lever 2 is hinged to the lower end of the left auxiliary driving rod 4 and the upper end of the third toggle lever 6, the lower end of the second toggle lever 3 is hinged to the lower end of the right auxiliary driving rod 5 and the upper end of the fourth toggle lever 7, respectively, the lower end of the third toggle lever 6 and the lower end of the fourth toggle lever 7 are hinged to a slide block 8 capable of moving up and down, respectively, the main driving rod 1 is located on the central axis of the slide block 8, the left auxiliary driving rod 4, the right auxiliary driving rod 5, and the first to fourth toggle levers (2, 3, 6, 7) are symmetrical about the, the upper end of the left auxiliary driving rod 4 and the upper end of the right auxiliary driving rod 5 are both movable hinge points and are driven by an auxiliary servo motor 11 to move.
The upper end 4 of the left auxiliary driving rod and the upper end of the right auxiliary driving rod 5 can be respectively driven by the auxiliary servo motor 11 and can also be driven together, and three preferred embodiments are provided:
as shown in fig. 1, in the first embodiment, the upper end of the left auxiliary driving rod 4 and the upper end of the right auxiliary driving rod 5 are respectively driven by respective auxiliary servo motors 11 to move, the upper end of the left auxiliary driving rod 4 and the upper end of the right auxiliary driving rod 5 are respectively hinged on the left slider 9 and the right slider 10, and the left slider 9 and the right slider 10 are respectively driven by respective auxiliary servo motors 11 to move left and right;
as shown in fig. 2, in the second embodiment, the upper end of the left auxiliary driving rod 4 and the upper end of the right auxiliary driving rod 5 are driven by respective auxiliary servo motors 11 to move, the upper end of the left auxiliary driving rod 4 and the upper end of the right auxiliary driving rod 5 are respectively hinged on a left crank 12 and a right crank 13, and the left crank 12 and the right crank 13 are driven by respective auxiliary servo motors 11 to rotate;
as shown in fig. 3, in the third embodiment, the upper end of the left auxiliary driving rod 4 and the upper end of the right auxiliary driving rod 5 are driven by the same auxiliary servo motor 11 to move synchronously, the upper end of the left auxiliary driving rod 4 and the upper end of the right auxiliary driving rod 5 are hinged on the left slider 9 and the right slider 10 respectively, the left slider 9 and the right slider 10 are symmetrically hinged on the synchronizing wheel 16 through the left connecting rod 14 and the right connecting rod 15 respectively, the synchronizing wheel 16 is driven to rotate by the single auxiliary servo motor 11, and the auxiliary servo motor 11 drives the left slider 9 and the right slider 10 to move synchronously left and right through the synchronizing wheel 16, the left connecting rod 14 and the right connecting rod 15.
In the first embodiment and the second embodiment, one drive is added into three drives, when two auxiliary servo motors 11 move synchronously, the bottom dead center of the slide block 8 can be dynamically compensated, the torque and instantaneous power of a single servo drive motor can be obviously reduced on the premise of keeping the nominal pressure of the press, the position and the speed of the slide block 8 are effectively controlled, the two auxiliary servo motors 11 can move asynchronously according to needs, the unbalance loading of the slide block 8 is eliminated, any motion curve of the slide block 8 is obtained, and the performance and the applicability of the press are greatly improved.
In the third embodiment, one auxiliary servo motor 11 is adopted to synchronously drive the left auxiliary driving rod 4 and the right auxiliary driving rod 5 to realize dynamic adjustment of the bottom dead center position, and although unbalance loading in the stamping process cannot be eliminated, the problem of synchronous control of the two auxiliary servo motors 11 is avoided.
In the invention, a main servo motor drives a main driving rod 1 to move up and down, the main driving rod 1 simultaneously drives a first toggle rod 2 and a second toggle rod 3 to move, the first toggle rod 2 and the second toggle rod 3 simultaneously drive a third toggle rod 6 and a fourth toggle rod 7 to move respectively, the third toggle rod 6 and the fourth toggle rod 7 together drive a slide block 8 to move up and down, when a left auxiliary driving rod 4 and a right auxiliary driving rod 5 are horizontal, the slide block 8 reaches the uppermost position, namely, is at the top dead center, when the left auxiliary driving rod 4 and the right auxiliary driving rod 5 are vertical, the slide block 8 reaches the lowermost position, namely, is at the bottom dead center, because the upper ends of the left auxiliary driving rod 4 and the right auxiliary driving rod 5 are both movable hinge points and are driven to move by an auxiliary servo motor 11, the positions of the upper end of the left auxiliary driving rod 4 and the upper end of the right auxiliary driving rod 5 can be accurately adjusted by the auxiliary servo motor 11, and further the bottom, dynamic compensation of the bottom dead center of the sliding block 8 is realized, the movement mode of the sliding block 8 can be set at will, the performance and the applicability of the press machine are greatly improved, and the torque and the instantaneous power of a single driving motor are reduced.
It will be understood that modifications and variations can be made by persons skilled in the art in light of the above teachings and all such modifications and variations are intended to be included within the scope of the invention as defined in the appended claims.
Claims (6)
1. The utility model provides a precision adjustable many toggle rod type servo press of bottom dead center which characterized in that: the upper end of the left auxiliary driving rod and the upper end of the right auxiliary driving rod are respectively hinged with the upper end of a first toggle rod and the upper end of a second toggle rod, the lower end of the first toggle rod is respectively hinged with the lower end of the left auxiliary driving rod and the upper end of a third toggle rod, the lower end of the second toggle rod is respectively hinged with the lower end of the right auxiliary driving rod and the upper end of the fourth toggle rod, the lower end of the third toggle rod and the lower end of the fourth toggle rod are respectively hinged with a sliding block capable of moving up and down, the main driving rod is positioned on a central axis of the sliding block, the left auxiliary driving rod, the right auxiliary driving rod and the first toggle rod to the fourth toggle rod are symmetrical about the central axis of the sliding block, the main driving rod is driven by a main servo motor to move up and down, and the upper end of the left auxiliary driving rod and.
2. The bottom dead center precision adjustable multiple toggle servo press of claim 1, wherein: the upper end of the left auxiliary driving rod and the upper end of the right auxiliary driving rod are driven to move by respective auxiliary servo motors.
3. The bottom dead center precision adjustable multiple toggle servo press of claim 2, wherein: the upper end of the left auxiliary driving rod and the upper end of the right auxiliary driving rod are respectively hinged on the left slider and the right slider, and the left slider and the right slider are respectively driven by respective auxiliary servo motors to move left and right.
4. The bottom dead center precision adjustable multiple toggle servo press of claim 2, wherein: the upper end of the left auxiliary driving rod and the upper end of the right auxiliary driving rod are respectively hinged on the left crank and the right crank, and the left crank and the right crank are respectively driven by respective auxiliary servo motors to rotate.
5. The bottom dead center precision adjustable multiple toggle servo press of claim 1, wherein: the upper end of the left auxiliary driving rod and the upper end of the right auxiliary driving rod are driven by the same auxiliary servo motor to synchronously move.
6. The bottom dead center precision adjustable multiple toggle servo press of claim 5, wherein: the upper end of the left auxiliary driving rod and the upper end of the right auxiliary driving rod are respectively hinged on the left sliding block and the right sliding block, the left sliding block and the right sliding block are symmetrically hinged on the synchronizing wheel through the left connecting rod and the right connecting rod, the synchronizing wheel is driven to rotate by a single auxiliary servo motor, and the auxiliary servo motor drives the left sliding block and the right sliding block to synchronously move left and right through the synchronizing wheel, the left connecting rod and the right connecting rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110423546.8A CN113119504A (en) | 2021-04-20 | 2021-04-20 | Multi-toggle rod type servo press with precisely adjustable bottom dead center |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110423546.8A CN113119504A (en) | 2021-04-20 | 2021-04-20 | Multi-toggle rod type servo press with precisely adjustable bottom dead center |
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| Publication Number | Publication Date |
|---|---|
| CN113119504A true CN113119504A (en) | 2021-07-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110423546.8A Pending CN113119504A (en) | 2021-04-20 | 2021-04-20 | Multi-toggle rod type servo press with precisely adjustable bottom dead center |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0024699A2 (en) * | 1979-08-24 | 1981-03-11 | L. SCHULER GmbH | Press drive |
| CN103434167A (en) * | 2013-08-14 | 2013-12-11 | 浙江帅锋精密机械制造有限公司 | Double-toggle transmission mechanism for high-speed precision punch |
| CN204747381U (en) * | 2015-05-26 | 2015-11-11 | 南京农业大学 | High -speed accurate press actuating mechanism with adjustable bottom dead centre |
| CN204747380U (en) * | 2015-05-26 | 2015-11-11 | 南京农业大学 | High -speed accurate press actuating mechanism of symmetry formula |
| CN106079512A (en) * | 2015-04-28 | 2016-11-09 | 日本电产新宝株式会社 | Decompressor |
| CN107364162A (en) * | 2017-08-28 | 2017-11-21 | 武汉理工大学 | A kind of mechnical servo main drive of large-tonnage high speed fine machine |
-
2021
- 2021-04-20 CN CN202110423546.8A patent/CN113119504A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0024699A2 (en) * | 1979-08-24 | 1981-03-11 | L. SCHULER GmbH | Press drive |
| CN103434167A (en) * | 2013-08-14 | 2013-12-11 | 浙江帅锋精密机械制造有限公司 | Double-toggle transmission mechanism for high-speed precision punch |
| CN106079512A (en) * | 2015-04-28 | 2016-11-09 | 日本电产新宝株式会社 | Decompressor |
| CN204747381U (en) * | 2015-05-26 | 2015-11-11 | 南京农业大学 | High -speed accurate press actuating mechanism with adjustable bottom dead centre |
| CN204747380U (en) * | 2015-05-26 | 2015-11-11 | 南京农业大学 | High -speed accurate press actuating mechanism of symmetry formula |
| CN107364162A (en) * | 2017-08-28 | 2017-11-21 | 武汉理工大学 | A kind of mechnical servo main drive of large-tonnage high speed fine machine |
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Application publication date: 20210716 |