Water expansion servo hydraulic machine

Abstract

The utility model relates to the technical field of water expansion machines, and provides a water expansion servo hydraulic machine which comprises a hydraulic cylinder, a demolding mechanism used for demolding a formed part in a cavity of a fixed barrel is arranged on the outer side wall of the fixed barrel and comprises an outer barrel, the outer barrel is fixedly connected to the lower surface of a movable plate, and the lower end of the outer barrel is rotationally connected with a rotating ring. A driving mechanism used for driving the rotating ring to rotate is arranged on the outer side wall of the rotating ring, a plurality of vibrating mechanisms are rotationally connected to the lower end of the rotating ring in a circular distribution mode at equal intervals, and a co-rotating mechanism used for driving the vibrating mechanisms to rotate synchronously is arranged on the inner side wall of the rotating ring. According to the water expansion servo hydraulic machine, through the demolding mechanism, a molded part can be prevented from being excessively adhered to the inner wall of the cavity of the fixed barrel under vibration to be easily separated, and the demolding process of the molded part is facilitated; the problem that in the prior art, a formed part in a fixed barrel cavity is difficult to demold due to excessive adhesion between the formed part and the inner wall of the cavity during demolding is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of water expansion machines, in particular to a water expansion servo hydraulic press. Background Art

[0002] The water expansion machine is an advanced manufacturing technology for manufacturing hollow integral components by high pressure forming. Its principle is to use the pipe as the blank and water as the transmission medium. The water with ultra-high pressure is filled into the pipe to generate pressure on the inner wall of the pipe. The two ends of the pipe are sealed with a punch. The axial feed is used to provide supplementary material for the pipe forming, so that the outer wall of the pipe is completely close to the mold cavity, so as to obtain the desired shape of the parts. When the water expansion machine is used, water is injected into the pipe to change the shape of the pipe through water pressure extrusion.

[0003] After searching, the existing patent (publication number: CN219130471U) discloses a water expansion machine with mechanical clamping, including a base, a mold assembly is arranged at the upper end of the base, a water injection assembly is arranged at the center of the upper surface of the base, the mold assembly includes a plurality of fixed rods, and the plurality of fixed rods are fixedly connected to the upper surface of the base in a ring shape, the upper ends of the plurality of fixed rods are fixedly connected to the same fixed plate, a hydraulic cylinder is embedded in the center of the fixed plate, and the lower end of the hydraulic cylinder is fixedly connected to a movable plate.

[0004] However, in the implementation of the relevant technology, the following problems were found: in the above, the hydraulic cylinder is started to push the movable plate, and the fixed cylinder is pushed by the movable plate. When the fixed cylinder is sleeved on the round tube, the water flow pressure input into the round tube by the water injection pipe is evenly applied to the inner wall of the round tube, and then the water pressure evenly extrude the round tube into shape. However, the extruded molded part will be completely attached to the inner wall of the fixed cylinder cavity, and there will be too much adhesion between the molded part and the inner wall of the fixed cylinder cavity. When the hydraulic cylinder is started to open the fixed cylinder, the molded part cannot be directly detached from the fixed cylinder, which will make it difficult to demold the molded part. Utility Model Content

[0005] The utility model provides a water-swelling servo hydraulic press, which solves the problem in the related art that a molded part in a fixed cylinder cavity is difficult to demould due to excessive adhesion between the molded part and the inner wall of the cavity.

[0006] The technical solution of the utility model is as follows: a water-rising servo hydraulic press comprises a hydraulic cylinder, the output end of the hydraulic cylinder is fixedly connected to a movable plate, the lower surface of the movable plate is fixedly connected to a fixed cylinder, an outer side wall of the fixed cylinder is provided with a demolding mechanism for demolding a molded part in the mold cavity of the fixed cylinder, the demolding mechanism comprises an outer cylinder, the outer cylinder is fixedly connected to the lower surface of the movable plate, and the fixed cylinder passes through the outer cylinder, a swivel is rotatably connected to the lower end of the outer cylinder, a driving mechanism for driving the swivel to rotate is provided on the outer side wall of the swivel, a plurality of vibration mechanisms are rotatably connected to the lower end of the swivel in a circular distribution at equal intervals, and a synchronous rotation mechanism for driving the plurality of vibration mechanisms to rotate synchronously is provided on the inner side wall of the swivel.

[0007] Preferably, the driving mechanism includes an outer ring gear and a motor, the outer ring gear is fixedly sleeved on the outer side wall of the rotating ring, the motor is fixedly connected to the lower surface of the movable plate, one end of the output shaft of the motor is fixedly connected to a first gear, and the first gear is meshed with the outer ring gear.

[0008] Preferably, the diameter of the first gear is smaller than the outer ring diameter of the outer ring gear.

[0009] Preferably, the co-rotating mechanism includes an inner ring gear and a plurality of second gears, the inner ring gear being fixedly connected to the inner wall of the rotating ring, a plurality of second gears being distributed in a circle and rotatably connected to the lower surface of the movable plate at equal intervals, and a plurality of second gears being respectively meshed with the inner ring gear, and a plurality of the vibration mechanisms being respectively arranged at the lower ends of a plurality of the second gears.

[0010] Preferably, the diameters of the plurality of second gears are the same, and the diameters of the plurality of second gears are all smaller than the inner ring diameter of the inner ring gear.

[0011] Preferably, the vibration mechanism comprises a connecting block, the connecting block is fixedly connected to the lower end of the second gear, and a plurality of jacking components are arranged on the side wall of the connecting block in a circular distribution at equal intervals.

[0012] Preferably, the connecting block is a triangular structure, and a plurality of the jacking assemblies are respectively arranged at the triangular ends of the connecting block.

[0013] Preferably, the pushing assembly includes a groove, the groove is opened at the end of the connecting block, a pushing block is inserted in the groove, one end of the pushing block is fixedly connected to a limiting block, and the limiting block is slidably arranged in the groove, one side of the limiting block is fixedly connected to a spring, and one end of the spring is fixedly connected to the inner bottom of the groove.

[0014] The working principle and beneficial effects of the utility model are:

[0015] In the utility model, through the demolding mechanism, the driving mechanism drives the rotating ring to rotate, and then drives a plurality of vibration mechanisms to rotate synchronously along the outer wall of the fixed cylinder through the synchronous rotation mechanism, so that the outer wall of the fixed cylinder can be continuously struck to make it vibrate, and then the molded part can avoid excessive adhesion with the inner wall of the fixed cylinder cavity under vibration and easy detachment, which facilitates the demolding process of the molded part and solves the problem in the related technology that the molded part in the fixed cylinder cavity is difficult to demold due to excessive adhesion with the inner wall of the cavity during demolding.

[0016] In the utility model, when a plurality of connecting blocks are distributed in a circle and synchronously rotate against the outer wall of the fixed cylinder through the vibration mechanism, the top block on each corner end of each connecting block can not only collide with the outer wall of the fixed cylinder to make the fixed cylinder vibrate, but also, under the action of the spring, can buffer the process of the top block colliding with the fixed cylinder, thereby reducing the wear caused by the process of constantly colliding with the fixed cylinder to make it vibrate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0018] Figure 1 This is a structural schematic diagram of the water-inflating servo hydraulic press proposed by the utility model;

[0019] Figure 2 It is a structural schematic diagram of the demoulding mechanism of the water-swelling servo hydraulic press proposed by the utility model;

[0020] Figure 3 for Figure 2 A top view of the structure of the demoulding mechanism;

[0021] Figure 4 for Figure 2 A schematic diagram of the structure of the co-rotation mechanism in the demoulding mechanism;

[0022] Figure 5 This is a structural cross-sectional view of the demoulding mechanism of the water-swelling servo hydraulic press proposed by the utility model;

[0023] Figure 6 for Figure 2 Schematic diagram of the structure of the vibration mechanism in the demoulding mechanism.

[0024] In the figure: 1. frame; 2. hydraulic cylinder; 3. moving plate; 4. fixed cylinder; 5. cylinder; 6. outer cylinder; 7. rotating ring; 8. outer ring gear; 9. motor; 10. first gear; 11. inner ring gear; 12. second gear; 13. vibration mechanism; 131. connecting block; 132. groove; 133. top block; 134. limit block; 135. spring. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0026] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The utility model provides a technical solution: a water-rising servo hydraulic press comprises a hydraulic cylinder 2, the output end of the hydraulic cylinder 2 is fixedly connected with a moving plate 3, the lower surface of the moving plate 3 is fixedly connected with a fixed cylinder 4, the outer wall of the fixed cylinder 4 is provided with a demoulding mechanism for demoulding the molded part in the cavity of the fixed cylinder 4, the demoulding mechanism comprises an outer cylinder 6, the outer cylinder 6 is fixedly connected to the lower surface of the moving plate 3, and the fixed cylinder 4 runs through the outer cylinder 6, the lower end of the outer cylinder 6 is rotatably connected with a swivel 7, the outer wall of the swivel 7 is provided with a driving mechanism for driving the swivel 7 to rotate, the lower end of the swivel 7 is rotatably connected with a plurality of vibration mechanisms 13 distributed in a circle at equal intervals, and the inner wall of the swivel 7 is provided with a synchronous rotation mechanism for driving the plurality of vibration mechanisms 13 to rotate synchronously.

[0027] When in use, first, place the pipe in the cylinder 5, start the hydraulic cylinder 2 to drive the movable plate 3 to descend, and the movable plate 3 drives the fixed cylinder 4 to descend until the fixed cylinder 4 and the cylinder 5 are molded, then, ultra-high pressure water is injected into the fixed cylinder 4 and the pipe in the cylinder 5 through the water injection pipe on the frame 1, and the pipe in the fixed cylinder 4 can be extruded and molded under the extrusion of water pressure. At this time, it is necessary to demold the molded part in the cavity of the fixed cylinder 4, and the rotating ring 7 is driven to rotate by the driving mechanism, and the rotating ring 7 drives several The vibration mechanisms 13 rotate synchronously, and several vibration mechanisms 13 will be distributed in a circle and rotate synchronously along the outer wall of the fixed cylinder 4. Several vibration mechanisms 13 will synchronously knock the outer wall of the fixed cylinder 4 to make it vibrate. The molded parts in the cavity of the fixed cylinder 4 will be separated from the inner wall of the cavity of the fixed cylinder 4 under vibration, and the molded parts will not have excessive adhesion with the inner wall of the cavity of the fixed cylinder 4. When the hydraulic cylinder 2 is adjusted to drive the fixed cylinder 4 to rise, the molded parts can be directly separated from the fixed cylinder 4, and the molded parts can be directly taken out. Therefore, through the demolding mechanism, the driving mechanism drives the rotating ring 7 to rotate, and then drives several vibration mechanisms 13 to rotate synchronously along the outer wall of the fixed cylinder 4 through the synchronous rotation mechanism, so that the outer wall of the fixed cylinder 4 can be continuously knocked to make it vibrate, and then the molded part can avoid excessive adhesion with the inner wall of the cavity of the fixed cylinder 4 under vibration and easy detachment, which facilitates the demolding process of the molded part and solves the problem in the related technology that the molded part in the cavity of the fixed cylinder 4 is difficult to demold due to excessive adhesion with the inner wall of the cavity during demolding.

[0028] See also Figure 2 , Figure 3 , Figure 4 and Figure 5 The driving mechanism includes an outer ring gear 8 and a motor 9. The outer ring gear 8 is fixedly sleeved on the outer side wall of the rotating ring 7. The motor 9 is fixedly connected to the lower surface of the movable plate 3. One end of the output shaft of the motor 9 is fixedly connected to a first gear 10, and the first gear 10 is meshed with the outer ring gear 8. The diameter of the first gear 10 is smaller than the outer ring diameter of the outer ring gear 8.

[0029] By starting the motor 9 , the motor 9 drives the first gear 10 to rotate, the first gear 10 drives the outer ring gear 8 to rotate, and the outer ring gear 8 drives the rotating ring 7 to rotate.

[0030] See also Figure 2 , Figure 3 , Figure 4 and Figure 5 The rotating mechanism includes an inner ring gear 11 and a plurality of second gears 12. The inner ring gear 11 is fixedly connected to the inner wall of the rotating ring 7. The plurality of second gears 12 are rotatably connected to the lower surface of the movable plate 3 in a circular distribution with equal intervals. The plurality of second gears 12 are respectively meshed with the inner ring gear 11. The diameters of the plurality of second gears 12 are the same, and the diameters of the plurality of second gears 12 are all smaller than the inner ring diameter of the inner ring gear 11. The plurality of vibration mechanisms 13 are respectively arranged at the lower ends of the plurality of second gears 12.

[0031] When the rotating ring 7 rotates, it drives the inner ring gear 11 to rotate, and the inner ring gear 11 drives a plurality of second gears 12 to rotate synchronously, and the plurality of second gears 12 respectively drives a plurality of vibration mechanisms 13 to rotate synchronously.

[0032] See also Figure 2 and Figure 6 The vibration mechanism 13 includes a connecting block 131, which is fixedly connected to the lower end of the second gear 12. A plurality of push-up assemblies are arranged on the side wall of the connecting block 131 in a circular distribution and at equal intervals. The connecting block 131 is a triangular structure, and the plurality of push-up assemblies are respectively arranged at the triangular ends of the connecting block 131. The push-up assembly includes a groove 132, which is opened at the end of the connecting block 131. A push-up block 133 is inserted in the groove 132. One end of the push-up block 133 is fixedly connected to a limiting block 134, and the limiting block 134 is slidably arranged in the groove 132. A spring 135 is fixedly connected to one side of the limiting block 134, and one end of the spring 135 is fixedly connected to the inner bottom of the groove 132.

[0033] When the second gears 12 rotate synchronously, they will respectively drive the connection blocks 131 to rotate synchronously, and the connection blocks 131 will be distributed in a circle and rotate synchronously along the outer wall of the fixed cylinder 4. Since the connection blocks 131 are all triangular structures, when the top block 133 on each corner end of the connection block 131 hits the outer wall of the fixed cylinder 4, the top block 133 will not only generate an impact force on the outer wall of the fixed cylinder 4, but also the top block 133 will be squeezed into the groove 132. When the top block 133 is separated from the outer wall of the fixed cylinder 4, under the action of the spring 135, the top block 133 will return to the initial position until it hits the fixed cylinder 4 again. Therefore, through the vibration mechanism 13, when several connecting blocks 131 are distributed in a circle and rotate synchronously against the outer wall of the fixed cylinder 4, the top block 133 on each corner end of each connecting block 131 can not only collide with the outer wall of the fixed cylinder 4 to make the fixed cylinder 4 vibrate, but also, under the action of the spring 135, can buffer the process of the top block 133 colliding with the fixed cylinder 4, thereby reducing the wear caused by the process of constantly colliding with the fixed cylinder 4 to make it vibrate.

[0034] The working principle and use process of the utility model: when in use, first, place the pipe in the cylinder 5, and start the hydraulic cylinder 2 to drive the movable plate 3 to descend, and the movable plate 3 drives the fixed cylinder 4 to descend until the fixed cylinder 4 and the cylinder 5 are molded, and then, ultra-high-pressure water is injected into the fixed cylinder 4 and the pipe in the cylinder 5 through the water injection pipe on the frame 1. Under the extrusion effect of the water pressure, the pipe in the fixed cylinder 4 can be extruded and formed. At this time, it is necessary to demold the molded part in the cavity of the fixed cylinder 4, and start the motor 9. The motor 9 drives the first gear 10 to rotate, the first gear 10 drives the outer ring gear 8 to rotate, the outer ring gear 8 will drive the swivel 7 to rotate, the swivel 7 will drive the inner ring gear 11 to rotate, the inner ring gear 11 will drive a plurality of second gears 12 to rotate synchronously, and the plurality of second gears 12 will respectively drive a plurality of connecting blocks 131 to rotate synchronously, and the plurality of connecting blocks 131 will be distributed in a circle The top blocks 133 are pressed against the outer wall of the fixing cylinder 4 and the top blocks 133 are pressed against the inner wall of the fixing cylinder 4. When the top blocks 133 are separated from the outer wall of the fixing cylinder 4, the top blocks 133 are pressed against the inner wall of the fixing cylinder 4 and the fixing cylinder 4 is pressed against the inner wall of the fixing cylinder 4. When the top blocks 133 are separated from the outer wall of the fixing cylinder 4, the top blocks 133 are pressed against the inner wall of the fixing cylinder 4 and the fixing cylinder 4 is pressed against the inner wall of the fixing cylinder 4. Therefore, firstly, through the demoulding mechanism, the rotating ring 7 is driven to rotate through the driving mechanism, and then through the synchronous rotating mechanism, several vibration mechanisms 13 are driven to rotate synchronously along the outer wall of the fixed cylinder 4, so that the outer wall of the fixed cylinder 4 can be continuously knocked to make it vibrate, so that the molded part can avoid excessive adhesion with the inner wall of the cavity of the fixed cylinder 4 under vibration and easily detach, which facilitates the demoulding process of the molded part and solves the problem in the related art that the molded part in the cavity of the fixed cylinder 4 is difficult to demould due to excessive adhesion with the inner wall of the cavity during demoulding; secondly, through the vibration mechanism 13, when several connecting blocks 131 are distributed in a circular shape and rotate synchronously along the outer wall of the fixed cylinder 4, the top block 133 on each corner end of each connecting block 131 can not only collide with the outer wall of the fixed cylinder 4 to make the fixed cylinder 4 vibrate, but also, under the action of the spring 135, can buffer the process of the top block 133 hitting the fixed cylinder 4, thereby reducing the wear caused by the process of constantly hitting the fixed cylinder 4 to make it vibrate.

[0035] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A water-swell servo hydraulic press, comprising a hydraulic cylinder (2), wherein the output end of the hydraulic cylinder (2) is fixedly connected to a movable plate (3), and the lower surface of the movable plate (3) is fixedly connected to a fixed cylinder (4), characterized in that: A demoulding mechanism for demoulding a molded part in a mold cavity of the fixed cylinder (4) is arranged on the outer wall of the fixed cylinder (4), the demoulding mechanism comprising an outer cylinder (6), the outer cylinder (6) being fixedly connected to the lower surface of the movable plate (3), and the fixed cylinder (4) passing through the outer cylinder (6), a rotating ring (7) being rotatably connected to the lower end of the outer cylinder (6), a driving mechanism for driving the rotating ring (7) to rotate being arranged on the outer wall of the rotating ring (7), a plurality of vibration mechanisms (13) being rotatably connected to the lower end of the rotating ring (7) at equal intervals in a circular shape, and a synchronous rotation mechanism for driving the plurality of vibration mechanisms (13) to rotate synchronously being arranged on the inner wall of the rotating ring (7).

2. The water-swell servo hydraulic press according to claim 1, characterized in that: The driving mechanism comprises an outer ring gear (8) and a motor (9); the outer ring gear (8) is fixedly sleeved on the outer side wall of the rotating ring (7); the motor (9) is fixedly connected to the lower surface of the movable plate (3); one end of the output shaft of the motor (9) is fixedly connected to a first gear (10), and the first gear (10) is meshed with the outer ring gear (8).

3. The water-swell servo hydraulic press according to claim 2, characterized in that: The diameter of the first gear (10) is smaller than the outer ring diameter of the outer ring gear (8).

4. The water-swell servo hydraulic press according to claim 1, characterized in that: The co-rotation mechanism comprises an inner ring gear (11) and a plurality of second gears (12), wherein the inner ring gear (11) is fixedly connected to the inner side wall of the rotating ring (7), the plurality of second gears (12) are rotatably connected to the lower surface of the movable plate (3) in a circular distribution at equal intervals, and the plurality of second gears (12) are respectively meshed with the inner ring gear (11), and the plurality of vibration mechanisms (13) are respectively arranged at the lower ends of the plurality of second gears (12).

5. The water-swell servo hydraulic press according to claim 4, characterized in that: The diameters of the plurality of second gears (12) are the same, and the diameters of the plurality of second gears (12) are all smaller than the inner ring diameter of the inner ring gear (11).

6. The water-swell servo hydraulic press according to claim 4, characterized in that: The vibration mechanism (13) comprises a connecting block (131), the connecting block (131) being fixedly connected to the lower end of the second gear (12), and a plurality of jacking assemblies being arranged in a circular distribution at equal intervals on the side wall of the connecting block (131).

7. The water-swell servo hydraulic press according to claim 6, characterized in that: The connection block (131) is a triangular structure, and a plurality of the jacking assemblies are respectively arranged at the triangular ends of the connection block (131).

8. The water-swell servo hydraulic press according to claim 7, characterized in that: The push-up assembly comprises a groove (132), wherein the groove (132) is opened at the end of the connecting block (131), a push-up block (133) is inserted in the groove (132), one end of the push-up block (133) is fixedly connected to a limit block (134), and the limit block (134) is slidably arranged in the groove (132), one side of the limit block (134) is fixedly connected to a spring (135), and one end of the spring (135) is fixedly connected to the inner bottom of the groove (132).

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