CN221110686U - Ram lifting balance mechanism - Google Patents
Ram lifting balance mechanism Download PDFInfo
- Publication number
- CN221110686U CN221110686U CN202323103332.6U CN202323103332U CN221110686U CN 221110686 U CN221110686 U CN 221110686U CN 202323103332 U CN202323103332 U CN 202323103332U CN 221110686 U CN221110686 U CN 221110686U
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- ram
- ball screw
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- flange
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Abstract
The ram lifting balance mechanism is arranged in the box body, a transmission shaft is arranged in the center of the ram, a first synchronous belt pulley is arranged at the upper end of the transmission shaft, and the first synchronous belt pulley is arranged on the ram through a fifth bearing and a first flange; the upper part of the ram is provided with a connecting body; a ball screw is longitudinally arranged on the box body at one side of the ram, a ball screw is arranged in the ball screw in a matched manner, the upper part of the ball screw is arranged on the connecting body through a bearing and a fixed flange, and the upper end of the ball screw is connected with a motor; a longitudinal internal spline shaft is arranged on the box body at the other side of the ram through a third bearing and an internal spline flange, a second synchronous pulley is arranged on the upper part of the internal spline shaft, and the second synchronous pulley is arranged on the connecting body through a second flange and a fourth bearing; and a synchronous belt is arranged between the first synchronous belt pulley and the second synchronous belt pulley. The utility model adopts the spline shaft to transmit power and balance the ram, realizes one piece of dual-purpose, greatly simplifies the whole mechanism, and reduces the mechanism cost while achieving the ram balance function.
Description
Technical Field
The utility model relates to the technical field of machine tools.
Background
Ram sagging can degrade machine tool accuracy, a systematic deviation that combines positional accuracy and geometric accuracy, mainly due to ram deflection, for two reasons: one is the dead weight of the ram, and the other is that different accessories on the machine tool have different weights.
The ram lifting balance mechanism of the existing large metal processing machine tool adopts an independent balance hydraulic cylinder mechanism to ensure that the ram is not bent and deformed to two sides when moving up and down in the ram lifting process. The mode has a complex structure and high cost.
Disclosure of utility model
In order to solve the problems of the ram lifting balance mechanism of the existing machine tool, the utility model provides the ram lifting balance mechanism.
The technical scheme adopted by the utility model for achieving the purpose is as follows: the ram lifting balance mechanism is characterized in that a ram 12 is arranged in a box body 9, a transmission shaft 26 is arranged in the center of the ram 12, a first synchronous belt pulley 23 is arranged at the upper end of the transmission shaft 26, and the first synchronous belt pulley 23 is arranged on the ram 12 through a fifth bearing 28 and a first flange 25; the upper part of the ram 12 is provided with a connecting body 5; a ball screw 10 is longitudinally arranged on the box body 9 at one side of the ram 12, a ball screw 11 is arranged in the ball screw 10 in a matched manner, the upper part of the ball screw 11 is arranged on the connecting body 5 through a bearing and a fixed flange 7, and the upper end of the ball screw 11 is connected with the motor 1; a longitudinal internal spline shaft 13 is arranged on the box body 9 at the other side of the ram 12 through a third bearing 15 and an internal spline flange 15, a second synchronous pulley 19 is arranged on the upper part of the internal spline shaft 13, and the second synchronous pulley 19 is arranged on the connecting body 5 through a second flange 18 and a fourth bearing 17; a timing belt 27 is installed between the first timing pulley 23 and the second timing pulley 19.
The motor 1 is connected with the planetary reducer 2, an output shaft of the planetary reducer 2 is connected with the ball screw 11 through the coupler 4, the planetary reducer 2 is arranged on the support 3, and the support 3 is fixed on the connector 5.
The upper part of the first synchronous pulley 23 is fixed on a transmission shaft 26 through a first end cover 24; the upper end of the second timing pulley 19 is fixed to the inner spline shaft 13 through a second end cap 20.
The upper part of the ball screw 11 is mounted on the connecting body 5 through a first bearing 6 and a second bearing 8.
The connecting body 5 is connected to the ram 12 by a first key 21 and a second key 22.
The ram lifting balance mechanism adopts the spline shaft to transmit power and balance the ram, realizes one dual-purpose, greatly simplifies the whole mechanism, and reduces the mechanism cost while achieving the ram balance function.
Drawings
Fig. 1 is a front cross-sectional view of a ram lifting balance mechanism of the present utility model.
In the figure: 1. the motor, 2, the planetary reducer, 3, the support, 4, the shaft coupling, 5, the connector, 6, the first bearing, 7, the fixed flange, 8, the second bearing, 9, the box, 10, the ball screw, 11, the ball screw, 12, the ram, 13, the spline shaft, 14, the internal spline flange, 15, the third bearing, 16, the bearing gland, 17, the fourth bearing, 18, the second flange, 19, the second synchronous pulley, 20, the second end cover, 21, the first key, 22, the second key, 23, the first synchronous pulley, 24, the first end cover, 25, the first flange, 26, the transmission shaft, 27, the synchronous belt, 28 and the fifth bearing.
Detailed Description
As shown in figure 1, a motor 1 is connected with a planetary reducer 2, the planetary reducer 2 is connected with a support 3 through bolts, and the support 3 is fixed with a connecting body 5 through bolts. The coupling 4 connects the planetary reducer 2 and the ball screw 11 by a key, and the ball screw 11 is fixed to the connecting body 5 by the first bearing 6, the fixing flange 7, and the second bearing 8. The ball screw 10 is screwed to the housing 9, and the ram 12 is screwed to the connector 5 via the second key 22, the first key 21 and the screw. The transmission shaft 26 is connected to the ram 12 by the first synchronous pulley 23, the first end cover 24, the fifth bearing 28 and the first flange 25, the synchronous belt 27 is connected to the first synchronous pulley 23 and the second synchronous pulley 19 to transmit power, the spline shaft 13 is connected to the connecting body 5 through the second synchronous pulley 19, the second end cover 20, the fourth bearing 17 and the second flange 18, and meanwhile, the spline shaft 13 is radially fixed to the box 9 by the bearing gland 16, the bearing 15 and the internal spline flange 14, and is axially not fixed but movable.
Working principle: the motor 1 drives the planetary reducer 2 to drive the ball screw 11 to rotate, the ball screw 10 lifts the ball screw 11, thereby driving the connector 5 to lift, enabling the ram 12 and the spline shaft 13 to follow and lift, in the lifting process, the spline shaft 13 not only provides power for the transmission shaft 26 through the second synchronous pulley 19, the synchronous belt 27 and the first synchronous pulley 23, but also takes account of the function of supporting the balance ram 12, and the purpose of one shaft dual-purpose is achieved.
Claims (5)
1. Ram promotes balance mechanism, its characterized in that: the ram (12) is arranged in the box body (9), a transmission shaft (26) is arranged in the center of the ram (12), a first synchronous belt wheel (23) is arranged at the upper end of the transmission shaft (26), and the first synchronous belt wheel (23) is arranged on the ram (12) through a fifth bearing (28) and a first flange (25); the upper part of the ram (12) is provided with a connecting body (5); a ball screw (10) is longitudinally arranged on a box body (9) at one side of the ram (12), a ball screw (11) is arranged in the ball screw (10) in a matched mode, the upper part of the ball screw (11) is arranged on the connecting body (5) through a bearing and a fixed flange (7), and the upper end of the ball screw (11) is connected with the motor (1); a longitudinal inner spline shaft (13) is arranged on the box body (9) at the other side of the ram (12) through a third bearing (15) and an inner spline flange (14), a second synchronous pulley (19) is arranged on the upper part of the inner spline shaft (13), and the second synchronous pulley (19) is arranged on the connecting body (5) through a second flange (18) and a fourth bearing (17); a synchronous belt (27) is installed between the first synchronous pulley (23) and the second synchronous pulley (19).
2. The ram lifting balance mechanism of claim 1, wherein: the motor (1) is connected with the planetary reducer (2), an output shaft of the planetary reducer (2) is connected with the ball screw (11) through the coupler (4), the planetary reducer (2) is arranged on the support (3), and the support (3) is fixed on the connecting body (5).
3. The ram lifting balance mechanism of claim 1, wherein: the upper part of the first synchronous belt wheel (23) is fixed on a transmission shaft (26) through a first end cover (24); the upper end of the second synchronous pulley (19) is fixed on the internal spline shaft (13) through a second end cover (20).
4. The ram lifting balance mechanism of claim 1, wherein: the upper part of the ball screw (11) is mounted on the connecting body (5) through a first bearing (6) and a second bearing (8).
5. The ram lifting balance mechanism of claim 1, wherein: the connecting body (5) is connected with the ram (12) through a first key (21) and a second key (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323103332.6U CN221110686U (en) | 2023-11-17 | 2023-11-17 | Ram lifting balance mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323103332.6U CN221110686U (en) | 2023-11-17 | 2023-11-17 | Ram lifting balance mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221110686U true CN221110686U (en) | 2024-06-11 |
Family
ID=91368993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323103332.6U Active CN221110686U (en) | 2023-11-17 | 2023-11-17 | Ram lifting balance mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221110686U (en) |
-
2023
- 2023-11-17 CN CN202323103332.6U patent/CN221110686U/en active Active
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