Hydraulic cylinder used in cooperation with rotating disc

Abstract

The utility model discloses a hydraulic cylinder used in cooperation with a rotary disc. The hydraulic cylinder aims at solving the technical problems that in the prior art, a cylinder body of a product jacking jig is difficult to maintain, and the maintenance cost is high. The device comprises a lower plate, an upper plate and a rotating disc module, the upper plate and the lower plate are connected through a guide rod, the rotating disc module penetrates through the guide rod to be arranged between the upper plate and the lower plate, the position of the rotating disc module is fixed relative to the ground, and a plurality of hydraulic cylinders providing power for the lower plate to move in the axial direction of the guide rod are arranged below the rotating disc module. The rotary table module comprises a rotary table seat and a rotary table arranged on the rotary table seat, the hydraulic cylinder comprises an upper cover, a cylinder sleeve and a piston rod, the piston rod is connected with the lower plate, the upper cover is fixedly connected with the bottom of the rotary table seat, the rotary table module is provided with an ejection hole and a maintenance hole which penetrate through the rotary table seat and the rotary table, and the upper cover is provided with an ejection oil cylinder. An ejection piston rod in the ejection oil cylinder can stretch out of the ejection hole, and an ejection cover of the ejection oil cylinder can be detached through the maintenance hole. The maintenance holes are additionally formed in the rotating disc module, so that the ejection oil cylinder is convenient to repair and maintain in the later period.

Description

Technical Field

[0001] The utility model belongs to the field of mold production and manufacturing, in particular to a hydraulic cylinder used in conjunction with a turntable. Background Art

[0002] During the mold manufacturing process, the existing hydraulic cylinder separately connects the turntable module and the lower plate, and another set of cylinder bodies is required to lift the product fixture. The stacked arrangement of the two cylinder bodies takes up a large space. At the same time, the cylinder body of the product fixture is located under the turntable module. When the cylinder body of the product fixture needs to be maintained or repaired, the turntable needs to be removed.

[0003] There are the following problems:

[0004] 1. The cylinder of the jacking product fixture is difficult to maintain and the maintenance cost is high;

[0005] 2. Two cylinder bodies stacked on top of each other take up a large usable space. Utility Model Content

[0006] (1) Technical issues to be solved

[0007] In view of the deficiencies of the prior art, the purpose of the present invention is to provide a hydraulic cylinder for use with a turntable, aiming to solve the technical problems existing in the background technology of the prior art.

[0008] (2) Technical solution

[0009] A hydraulic cylinder used in conjunction with a turntable comprises a lower plate, an upper plate, and a turntable module, wherein the upper plate and the lower plate are connected by a guide rod, the turntable module passes through the guide rod and is arranged between the upper plate and the lower plate, the position of the turntable module is fixed relative to the ground, a plurality of hydraulic cylinders are arranged below the turntable module to provide the lower plate with power for axial movement along the guide rod, the turntable module comprises a turntable seat and a turntable placed on the turntable seat, the hydraulic cylinder comprises an upper cover, a cylinder sleeve and a piston rod, the piston rod is connected to the lower plate, the upper cover is fixedly connected to the bottom of the turntable seat, the turntable module is provided with an ejection hole and a maintenance hole that penetrates the turntable seat and the turntable, the upper cover is provided with an ejection oil cylinder, the ejection piston rod in the ejection oil cylinder can be extended from the ejection hole, and the ejection cover of the ejection oil cylinder can be removed through the maintenance hole.

[0010] Furthermore, the maintenance hole is a hole of any shape, and the ejection hole and the maintenance hole of the turntable can be rotated to positions corresponding to the ejection cylinder. When the maintenance hole corresponds to the ejection cylinder, the maintenance hole is larger than the size of the ejection cover of the ejection cylinder.

[0011] Furthermore, the maintenance hole is a circular hole, the diameter of the maintenance hole is a, the diameter of the ejection cover is b, and a≥b.

[0012] Furthermore, an ejector oil cylinder cavity is provided on the upper cover, and an ejector piston rod can be placed in the ejector oil cylinder cavity. An oil circuit 1 and an oil circuit 2 are respectively provided at the top and the bottom of the ejector oil cylinder cavity. One side of the oil circuit 1 and the oil circuit 2 are connected to the interior of the ejector oil cylinder cavity, and the other side is connected to the side of the upper cover. The upper cover also includes an oil circuit 3, one end of the oil circuit 3 is connected to the bottom of the upper cover and communicates with the interior of the cylinder sleeve, and the other end is connected to the other side of the upper cover. The oil circuit 1, the oil circuit 2, and the oil circuit 3 are not connected to each other.

[0013] Furthermore, a fast hydraulic piston rod fixed to the bottom of the upper cover is provided in the hydraulic cylinder, and a piston rod is also provided in the hydraulic cylinder, and the piston rod has a fast hydraulic cavity matching the fast hydraulic piston rod.

[0014] Furthermore, the lower plate is provided with a quick oil inlet and outlet port at a position corresponding to the quick hydraulic cavity.

[0015] Furthermore, the hydraulic cylinder also includes a lower cover, the lower cover is provided with a through hole for the piston rod to enter and exit, and a mounting groove is provided on the side of the lower cover facing the upper cover, and the cylinder sleeve can be inserted into the mounting groove.

[0016] Furthermore, the installation groove includes a groove wall and a groove bottom, and a sealing groove 1 is respectively provided on a side of the groove wall in contact with the cylinder liner and a side of the groove bottom in contact with the cylinder liner, and an O-ring can be placed in the sealing groove 1.

[0017] Furthermore, the through hole includes an inner wall, the inner wall is provided with a plurality of sealing grooves 2 capable of installing U-shaped sealing rings, and a sealing groove 3 is further provided at the lower edge of the inner wall, and a Y-shaped sealing ring can be installed in the sealing groove 3.

[0018] Furthermore, the upper cover and the lower cover are connected via a plurality of connecting rods, and the connecting rods are distributed in a circular array along the outer ring of the cylinder liner.

[0019] (3) Beneficial effects

[0020] Compared with the prior art, the beneficial effects of the utility model are:

[0021] 1. Adding maintenance holes to the turntable module facilitates the later repair and maintenance of the ejector cylinder;

[0022] 2. By arranging a ejection cylinder on the upper cover of the hydraulic cylinder, the upper cover can be used for two purposes and the occupied space can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 : The overall structure diagram of the utility model.

[0024] Figure 2 : Schematic diagram of the hydraulic cylinder structure of the present utility model.

[0025] Figure 3 : Schematic diagram of the maintenance hole structure of the utility model.

[0026] Figure 4 : Explosion diagram of the ejection cylinder of the utility model.

[0027] Figure 5 : Schematic diagram of the rapid hydraulic piston rod of the utility model.

[0028] Figure 6 : Schematic diagram of the position of the quick oil inlet of the utility model.

[0029] Figure 7 : Schematic diagram of the installation slot position of the utility model.

[0030] Figure 8 : Schematic diagram of the installation of the connecting rod of the utility model.

[0031] Fig. 9 : Schematic diagram of the position distribution of the connecting rod of the utility model.

[0032] The markings of the components in the accompanying drawings are as follows:

[0033] 1-lower plate, 11-guide rod, 12-quick oil inlet, 2-turntable module, 21-turntable seat, 22-turntable, 23-ejection hole, 24-maintenance hole, 3-hydraulic cylinder, 31-upper cover, 311-ejection cylinder, 312-oil circuit three, 3111-ejection piston rod, 3112-ejection cover, 32-ejection cylinder cavity, 321-oil circuit one, 322-oil circuit two, 33-quick hydraulic piston rod, 3 4-piston rod, 341-fast hydraulic chamber, 35-lower cover, 351-through hole, 3511-inner wall, 3512-U-type sealing ring, 3513-sealing groove 2, 3514-sealing groove 3, 3515-Y-type sealing ring, 352-installation groove, 3521-groove wall, 3522-groove bottom, 3523-sealing groove 1, 3524-O-type sealing ring, 36-cylinder sleeve, 37-connecting rod, 4-upper plate DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0035] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0036] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0037] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0038] Please refer to Figure 1-9 ,

[0039] like Figure 1 , Figure 2As shown, the utility model provides a hydraulic cylinder used in conjunction with a turntable, comprising a lower plate 1, an upper plate 4, and a turntable module 2, wherein the upper plate 1 and the lower plate 4 are connected via a guide rod 11, the turntable module 2 passes through the guide rod 11 and is arranged between the upper plate 4 and the lower plate 1, the position of the turntable module 2 is fixed relative to the ground, a plurality of hydraulic cylinders 3 are arranged below the turntable module 2 to provide the lower plate 1 with axial movement power along the guide rod 11, the turntable module 2 comprises a turntable seat 21 and a turntable 2 placed on the turntable seat 21 2, the hydraulic cylinder 3 includes an upper cover 31, a cylinder sleeve 36 and a piston rod 34, the piston rod 34 is connected to the lower plate 1, the upper cover 31 is fixedly connected to the bottom of the turntable seat 21, the turntable module 2 is provided with an ejection hole 23 and a maintenance hole 24 penetrating the turntable seat 21 and the turntable 22, the upper cover 31 is provided with an ejection cylinder 311, the ejection piston rod 3111 in the ejection cylinder 311 can be extended from the ejection hole 23, and the ejection cover 3112 of the ejection cylinder 311 can be removed through the maintenance hole 24. The hydraulic cylinder 3 of the device can support the lower plate 1 to move up and down along the direction of the guide rod 11. In the process of mold manufacturing, it is not only necessary to move the lower plate 1 and the upper plate 4 back and forth, but also to be able to eject the product when the turntable 22 rotates to an appropriate position. Therefore, an ejection oil cylinder 311 is provided on the upper cover 31 of the hydraulic cylinder 3. There is an ejection piston rod 3111 in the ejection oil cylinder 311, and the ejection piston rod 3111 can extend from the ejection hole 23 of the turntable 22. When the ejection oil cylinder 311 is damaged, especially in the case of leakage, the ejection oil cylinder 311 needs to be disassembled for maintenance. By setting a maintenance hole 24 on the turntable module 2, when the ejection oil cylinder 311 is damaged, the ejection cover 3112 can be disassembled to replace the accessories in the ejection oil cylinder 311.

[0040] like Figure 2 As shown, the maintenance hole 24 is a hole of any shape, and the ejection hole 23 and the maintenance hole 24 of the turntable 22 can be rotated to the position corresponding to the ejection oil cylinder 311. When the maintenance hole 24 corresponds to the ejection oil cylinder 311, the maintenance hole 24 is larger than the size of the ejection cover 3112 of the ejection oil cylinder 311. The maintenance hole 24 is not necessarily a circular hole, but can also be a rectangular hole, a waist hole, a gourd hole, etc. As long as the equipment is in maintenance, the maintenance hole 24 can be rotated to the position corresponding to the ejection oil cylinder 311. When the maintenance hole 24 is larger than the size of the ejection cover 3112, it is convenient to remove the maintenance cover.

[0041] like Figure 3 As shown, the maintenance hole 24 is a circular hole, the diameter of the maintenance hole 24 is a, and the diameter of the ejection cover 3112 is b, and a ≥ b. When the maintenance hole 24 is a circular hole, the diameter of the maintenance hole 24 is a, and the diameter of the ejection cover 3112 is b, and a needs to be greater than, so that maintenance is convenient, and the diameter a of the maintenance hole 24 is at least equal to the diameter b of the ejection cover 3112.

[0042] like Figure 4 As shown, the upper cover 31 is provided with an ejection cylinder cavity 32, and the ejection piston rod 3111 can be placed in the ejection cylinder cavity 32. The top and bottom of the ejection cylinder cavity 32 are respectively provided with an oil circuit 1 321 and an oil circuit 2 322. One side of the oil circuit 1 321 and the oil circuit 2 322 are connected to the inside of the ejection cylinder cavity 32, and the other side is connected to the side of the upper cover 31. The upper cover 31 also includes an oil circuit 312. One end of the oil circuit 312 is connected to the bottom of the upper cover 31 and communicates with the inside of the cylinder sleeve 36, and the other end is connected to the other side of the upper cover 31. The oil circuit 1 321, the oil circuit 2 322, and the oil circuit 3 312 are not connected to each other. The ejection oil cylinder cavity 32 is the movement channel of the ejection piston rod 3111. The direction of the ejection oil cylinder cavity 32 is the same as the axial direction of the guide rod 11. The top and bottom of the ejection oil cylinder cavity 32 are provided with oil circuit 1 321 and oil circuit 2 322. After the ejection piston rod 3111 and the ejection cover 3112 are installed, hydraulic oil is introduced into oil circuit 1 321 to realize the downward movement of the ejection piston rod 3111; hydraulic oil is introduced into oil circuit 2 322 to realize the upward movement of the ejection piston rod 3111. At the same time, the upper cover 31 also includes oil circuit 3 312. One end of oil circuit 3 312 is connected to the bottom of the upper cover 31, and the other end is connected to the other side of the upper cover 31. Oil circuit 3 312 can transport hydraulic oil into the hydraulic cylinder 3, so that the hydraulic cylinder 3 controls the movement of the lower plate 1. Oil circuit 1 321, oil circuit 2 322 and oil circuit 3 312 share one upper cover 31, which reduces the accessories of the device and also saves the assembly time of the assembler.

[0043] like Figure 5 As shown, the hydraulic cylinder 3 has a fast hydraulic piston rod 33 fixed to the bottom of the upper cover 31, and the hydraulic cylinder 3 is also provided with a piston rod 34, and the piston rod 34 has a fast hydraulic cavity 341 that matches the fast hydraulic piston rod 33. The fast hydraulic cavity 341 and the fast hydraulic piston rod 33 fixed to the bottom of the upper cover 31 cooperate with each other to form a sealed cylinder body. Thanks to the small cross-sectional area of ​​the fast hydraulic cavity 341, hydraulic oil is injected into the fast hydraulic cavity 341 at a constant speed, and the fast hydraulic cavity 341 can quickly lift the piston rod 34 to achieve the effect of high speed and low pressure.

[0044] like Figure 6 As shown, the lower plate 1 is provided with a fast oil inlet 12 at a position corresponding to the fast hydraulic cavity 341. The hydraulic cylinder 3 is placed above the lower plate 1, and the piston rod 34 is in direct contact with the lower plate 1. In order to inject hydraulic oil into the fast hydraulic cavity 341, a fast oil inlet 12 needs to be provided at a position corresponding to the fast hydraulic cavity 341 of the lower plate 1 so that the hydraulic oil can enter the fast hydraulic cavity 341.

[0045] like Figure 7As shown, the hydraulic cylinder 3 further comprises a lower cover 35, the lower cover 35 is provided with a through hole 351 for the piston rod 34 to enter and exit, and a mounting groove 352 is provided on the side of the lower cover 35 facing the upper cover 31, and the cylinder sleeve 36 can be inserted into the mounting groove 352. By providing the mounting groove 352 on the side of the lower cover 35 facing the upper cover 31, two surfaces of the lower cover 35 can be pressed against the cylinder sleeve 36, and the size of the piston rod 34 matches the size of the through hole 351, so that the lower cover 35 can be directly installed without reducing the cross-sectional area of ​​the piston rod 34, and the specific method is to directly insert the cylinder sleeve 36 into the mounting groove 352, and the through hole 351 is only for the piston rod 34 to enter and exit.

[0046] like Figure 7 As shown, the installation groove 352 includes a groove wall 3521 and a groove bottom 3522. The side of the groove wall 3521 in contact with the cylinder sleeve 36 and the side of the groove bottom 3522 in contact with the cylinder sleeve 36 are respectively provided with a sealing groove 1 3523, and an O-type sealing ring 3524 can be placed in the sealing groove 1 3523. Since the installation groove 352 is provided on the side of the lower cover 35 facing the upper cover 31, the lower cover 35 has two surfaces against the cylinder sleeve 36, and these two surfaces specifically refer to the groove wall 3521 and the groove bottom 3522 of the installation groove 352. The sealing groove 1 3523 is machined on the surface where the groove wall 3521 and the groove bottom 3522 contact the cylinder sleeve 36 by a lathe, and the double sealing effect of the hydraulic cylinder 3 is achieved by placing an O-type sealing ring 3524 in the sealing groove 1 3523.

[0047] like Figure 7 As shown, the through hole 351 includes an inner wall 3511, and the inner wall 3511 is provided with a plurality of sealing grooves 3513 capable of installing U-shaped sealing rings 3512. A sealing groove 3514 is also provided at the lower edge of the inner wall 3511, and a Y-shaped sealing ring 3515 can be installed in the sealing groove 3514. The U-shaped sealing ring 3512 can be placed in the sealing groove 2 3513 machined on the inner wall 3511 of the through hole 351. The U-shaped sealing ring 3512 can resist the inner wall 3511 and the piston rod 34 to prevent the hydraulic oil from leaking out from the gap between the inner wall 3511 and the piston rod 34. A sealing groove 3514 is also provided at the lower edge of the inner wall 3511. A Y-shaped sealing ring 3515 can be installed in the sealing groove 3514. In addition to preventing the leakage of hydraulic oil, the Y-shaped sealing ring 3515 can also act as a scraper. By holding the piston rod 34 tightly, dirt and dust on the surface of the piston rod 34 are scraped off, thereby achieving a cleaning effect and extending the service life of the hydraulic cylinder.

[0048] like Figure 8 , Fig. 9As shown, the upper cover 31 and the lower cover 35 are connected by a plurality of connecting rods 37, and the connecting rods 37 are distributed in an annular array along the outer ring of the cylinder sleeve 36. Connecting the upper cover 31 and the lower cover 35 by connecting rods 37 can increase the overall structural strength of the hydraulic cylinder 3, and the connecting rods 37 distributed in an annular array along the outer ring of the cylinder sleeve 36 can make the hydraulic cylinder 3 more evenly stressed.

[0049] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0050] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementations that can be understood by those skilled in the art.

Claims

1. A hydraulic cylinder used in conjunction with a turntable, characterized in that: The invention comprises a lower plate (1), an upper plate (4), and a turntable module (2), wherein the upper plate (4) and the lower plate (1) are connected via a guide rod (11), the turntable module (2) passes through the guide rod (11) and is arranged between the upper plate (4) and the lower plate (1), the position of the turntable module (2) is fixed relative to the ground, a plurality of hydraulic cylinders (3) are arranged below the turntable module (2) for providing the lower plate (1) with axial movement power along the guide rod (11), the turntable module (2) comprises a turntable seat (21) and a turntable (22) arranged on the turntable seat (21), and the hydraulic cylinder (3) comprises an upper cover (31), a cylinder sleeve (36) and a piston rod (34), the piston rod (34) being connected to the lower plate (1), the upper cover (31) being fixedly connected to the bottom of the turntable seat (21), the turntable module (2) being provided with an ejection hole (23) and a maintenance hole (24) penetrating the turntable seat (21) and the turntable (22), the upper cover (31) being provided with an ejection oil cylinder (311), an ejection piston rod (3111) in the ejection oil cylinder (311) being able to extend from the ejection hole (23), and an ejection cover (3112) of the ejection oil cylinder (311) being able to be disassembled through the maintenance hole (24).

2. A hydraulic cylinder used in conjunction with a turntable according to claim 1, characterized in that: The maintenance hole (24) is a hole of any shape. The ejection hole (23) and the maintenance hole (24) of the rotating disk (22) can be rotated to positions corresponding to the ejection cylinder (311). When the maintenance hole (24) corresponds to the ejection cylinder (311), the maintenance hole (24) is larger than the size of the ejection cover (3112) of the ejection cylinder (311).

3. A hydraulic cylinder used in conjunction with a turntable according to claim 2, characterized in that: The maintenance hole (24) is a circular hole, the diameter of the maintenance hole (24) is a, the diameter of the ejection cover (3112) is b, and a≥b.

4. The hydraulic cylinder used in conjunction with a turntable according to claim 1, characterized in that: The upper cover (31) is provided with an ejection oil cylinder cavity (32), in which an ejection piston rod (3111) can be placed, and the top and bottom of the ejection oil cylinder cavity (32) are respectively provided with an oil circuit 1 (321) and an oil circuit 2 (322), one side of the oil circuit 1 (321) and the oil circuit 2 (322) are connected to the inside of the ejection oil cylinder cavity (32), and the other side is connected to the side of the upper cover (31), and the upper cover (31) also includes an oil circuit 3 (312), one end of the oil circuit 3 (312) is connected to the bottom of the upper cover (31) and communicates with the inside of the cylinder sleeve (36), and the other end is connected to the other side of the upper cover (31), and the oil circuit 1 (321), the oil circuit 2 (322), and the oil circuit 3 (312) are not connected to each other.

5. The hydraulic cylinder used in conjunction with a turntable according to claim 4, characterized in that: The hydraulic cylinder (3) contains a fast hydraulic piston rod (33) fixed to the bottom of the upper cover (31). The hydraulic cylinder (3) also contains a piston rod (34), and the piston rod (34) contains a fast hydraulic cavity (341) matching the fast hydraulic piston rod (33).

6. The hydraulic cylinder used in conjunction with a turntable according to claim 5, characterized in that: The lower plate (1) is provided with a quick oil inlet and outlet port (12) at a position corresponding to the quick hydraulic cavity (341).

7. The hydraulic cylinder used in conjunction with a turntable according to claim 6, characterized in that: The hydraulic cylinder (3) further comprises a lower cover (35), wherein the lower cover (35) is provided with a through hole (351) for the piston rod (34) to enter and exit, and a mounting groove (352) is provided on a side of the lower cover (35) facing the upper cover (31), and the cylinder sleeve (36) can be inserted into the mounting groove (352).

8. The hydraulic cylinder used in conjunction with a turntable according to claim 7, characterized in that: The mounting groove (352) comprises a groove wall (3521) and a groove bottom (3522); a sealing groove 1 (3523) is provided on a side of the groove wall (3521) in contact with the cylinder sleeve (36) and a side of the groove bottom (3522) in contact with the cylinder sleeve (36); an O-ring (3524) can be placed in the sealing groove 1 (3523).

9. The hydraulic cylinder used in conjunction with a turntable according to claim 7, characterized in that: The through hole (351) includes an inner wall (3511), and the inner wall (3511) is provided with a plurality of sealing grooves (3513) capable of installing U-shaped sealing rings (3512). A sealing groove (3514) is also provided at the lowermost edge of the inner wall (3511), and a Y-shaped sealing ring (3515) can be installed in the sealing groove (3514).

10. The hydraulic cylinder used in conjunction with a turntable according to claim 7, characterized in that: The upper cover (31) and the lower cover (35) are connected via a plurality of connecting rods (37), and the connecting rods (37) are distributed in a ring array along the outer ring of the cylinder sleeve (36).

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