A synchronous lifting mechanism of oil cylinder

Abstract

The application relates to the technical field of oil cylinders, in particular to an oil cylinder synchronous lifting mechanism, which comprises a fixed mold base, two first oil cylinders, two first clamping seats and a first synchronous mechanism. The two first oil cylinders are arranged at the two ends of the fixed mold base, the first oil cylinder comprises a first piston rod, the first piston rod is fixedly connected with the first clamping seat, the first synchronous mechanism comprises two first racks, two first gears and a first shaft body, the first clamping seat is provided with the first rack, the first shaft body is rotatably arranged on the fixed mold base, the two ends of the first shaft body are respectively provided with the two first gears, and the two first gears are respectively engaged with the two first racks. When the first piston rod of the first oil cylinder moves downward, the first rack moves downward and drives the first rack to move, the first shaft body engaged with the first rack rotates and drives the other first rack and the corresponding first clamping seat to synchronously move downward, and the advantages of stable and applicable multi-oil-cylinder synchronous lifting situations are realized.

Description

Technical Field

[0001] This application relates to the field of hydraulic cylinder technology, and more specifically to a hydraulic cylinder synchronous lifting mechanism. Background Technology

[0002] A hydraulic cylinder is a hydraulic actuator that converts hydraulic energy into mechanical energy and performs linear reciprocating motion. It is widely used in stamping dies.

[0003] Existing stamping die holders provide stable pressing force, or use as shown in the attached diagram of the instruction manual. Figure 1 The structure includes a stamping die base 90 and two hydraulic cylinders 91. The piston rod of each hydraulic cylinder 91 is fixedly connected to the stamping die base 90. By simultaneously supplying oil to both hydraulic cylinders 91 and causing the piston rods of the cylinders 91 to move downwards or upwards simultaneously, the stamping die base 90 is moved downwards or upwards. However, ensuring that the piston rods on the multiple hydraulic cylinders 91 move synchronously is a technical problem that is difficult to avoid in the industry when using multi-cylinder drives.

[0004] Therefore, there is a need for a stable hydraulic cylinder synchronous lifting mechanism that is applicable to multi-cylinder synchronous lifting scenarios. Utility Model Content

[0005] The main objective of this application is to provide a hydraulic cylinder synchronous lifting mechanism, wherein the hydraulic cylinder synchronous lifting mechanism includes a fixed mold base, two first hydraulic cylinders, two first clamping seats, and several first synchronization mechanisms. The two first hydraulic cylinders are respectively disposed at both ends of the fixed mold base. Each first hydraulic cylinder includes a first piston rod, and each first piston rod is fixedly connected to a first clamping seat. Each first synchronization mechanism includes two first racks, two first gears, and a first shaft. Each first clamping seat is provided with at least one first rack. The first shaft is rotatably mounted on the fixed mold base, and two first gears are respectively provided at both ends of the first shaft. The two first gears mesh with the two first racks respectively. When the first piston rod of one first hydraulic cylinder moves downward, the first rack moves downward and drives one first rack to move. Then, the first shaft meshing with the first rack rotates and drives the other first rack and the corresponding first clamping seat to move downward synchronously. Compared with the prior art, it has the advantages of stability and applicability to multi-cylinder synchronous lifting scenarios.

[0006] Another objective of this application is to provide a hydraulic cylinder synchronous lifting mechanism, wherein the hydraulic cylinder synchronous lifting mechanism further includes two second hydraulic cylinders, two second clamping seats, and two second synchronous mechanisms. The two second hydraulic cylinders are respectively disposed at both ends of the fixed mold base. Each second hydraulic cylinder includes a second piston rod, and each second piston rod is fixedly connected to a second clamping seat. Each second synchronous mechanism includes two second racks, two second gears, and a second shaft. Each second clamping seat is provided with two first racks. The two ends of the second shaft are respectively provided with two second gears, and the two second gears respectively mesh with the two second racks. The second clamping seat is located directly above the first clamping seat. The first racks and the first piston rods pass through the second clamping seats. The length of the first piston rod is greater than the length of the second piston rod. By setting the second racks and the second shaft, synchronous movement between the two second clamping seats is achieved.

[0007] To achieve at least one of the above-mentioned objectives, this application provides a hydraulic cylinder synchronous lifting mechanism, wherein the hydraulic cylinder synchronous lifting mechanism includes:

[0008] A fixed mold base; and

[0009] Two first hydraulic cylinders are respectively disposed at both ends of the fixed mold base, and each first hydraulic cylinder includes a first piston rod; and

[0010] Two first clamping seats, each of the first piston rods being fixedly connected to a first clamping seat; and

[0011] A plurality of first synchronization mechanisms, each of the first synchronization mechanisms including two first racks, two first gears and a first shaft, each of the first clamping seats having at least one first rack, the first shaft being rotatably mounted on the fixed mold base, and two first gears being provided at both ends of the first shaft, the two first gears meshing with the two first racks respectively.

[0012] In one or more embodiments of this application, a first synchronization mechanism is provided on each side of the fixed mold base, and a first rack is vertically arranged at each end of the first clamping seat.

[0013] In one or more embodiments of this application, the hydraulic cylinder synchronous lifting mechanism further includes two second hydraulic cylinders, two second clamping seats, and two second synchronous mechanisms. The two second hydraulic cylinders are respectively disposed at both ends of the fixed mold base. Each second hydraulic cylinder includes a second piston rod, and each second piston rod is fixedly connected to a second clamping seat. Each second synchronous mechanism includes two second racks, two second gears, and a second shaft. Each second clamping seat is provided with two first racks. The two ends of the second shaft are respectively provided with two second gears, and the two second gears mesh with the two second racks respectively. The second clamping seat is located directly above the first clamping seat. The first racks and the first piston rod pass through the second clamping seat, and the length of the first piston rod is greater than the length of the second piston rod.

[0014] In one or more embodiments of this application, each of the two first clamping seats has a first mounting groove on its opposite side, and each of the two second clamping seats has a second mounting groove on its opposite side.

[0015] In one or more embodiments of this application, the hydraulic cylinder synchronous lifting mechanism further includes two measuring rulers, each measuring ruler including a ruler shell and a ruler body, the ruler body being slidably disposed within the ruler shell, both ruler shells being mounted on the fixed mold base, the ruler body of one measuring ruler being connected to a first clamping seat, and the ruler body of the other measuring ruler being connected to a second clamping seat.

[0016] In one or more embodiments of this application, a plurality of guide posts are fixedly installed on the fixed mold base, and each of the first clamping seats and each of the second clamping seats has a guide post passing through both ends.

[0017] In one or more embodiments of this application, each first hydraulic cylinder further includes a first cylinder body, a first piston, a first oil pipe, and a second oil pipe, and each second hydraulic cylinder further includes a second cylinder body, a second piston, a third oil pipe, and a fourth oil pipe. The first piston is slidably disposed in the first cylinder body and divides the chamber in the first cylinder body into a first upper chamber and a first lower chamber. The second piston is slidably disposed in the second cylinder body and divides the chamber in the second cylinder body into a second upper chamber and a second lower chamber. The first oil pipe communicates with the first upper chamber, the second oil pipe communicates with the first lower chamber, the third oil pipe communicates with the second upper chamber, and the fourth oil pipe communicates with the second lower chamber.

[0018] In one or more embodiments of this application, the top of the fixed mold base has a material removal hole.

[0019] In this embodiment, the hydraulic cylinder synchronous lifting mechanism includes a fixed mold base, two first hydraulic cylinders, two first clamping seats, and several first synchronous mechanisms. The two first hydraulic cylinders are respectively located at both ends of the fixed mold base. Each first hydraulic cylinder includes a first piston rod, and each first piston rod is fixedly connected to a first clamping seat. Each first synchronous mechanism includes two first racks, two first gears, and a first shaft. Each first clamping seat is provided with at least one first rack. The first shaft is rotatably mounted on the fixed mold base, and two first gears are respectively provided at both ends of the first shaft. The two first gears mesh with the two first racks respectively. When the first piston rod of one first hydraulic cylinder moves downward, the first rack moves downward and drives one first rack to move. Then, the first shaft meshing with the first rack rotates and drives the other first rack and the corresponding first clamping seat to move downward synchronously. Compared with the prior art, it has the advantages of stability and applicability to multi-cylinder synchronous lifting scenarios. Attached Figure Description

[0020] These and / or other aspects and advantages of this application will become clearer and more readily understood from the following detailed description of embodiments of this application taken in conjunction with the accompanying drawings, wherein:

[0021] Figure 1 The diagram illustrates the structure of an existing stamping die holder;

[0022] Figure 2 The figure shows a schematic diagram of the structure of a hydraulic cylinder synchronous lifting mechanism according to this application;

[0023] Figure 3 The diagram shows... Figure 2 A magnified view of a portion at point C;

[0024] Figure 4 The figure shows a schematic diagram of a hydraulic cylinder synchronous lifting mechanism of this application that does not include a guide column;

[0025] Figure 5 The figure shows a schematic diagram of the structure of a hydraulic cylinder synchronous lifting mechanism at a certain angle according to this application;

[0026] Figure 6 The diagram shows... Figure 5 A sectional view at DD. Detailed Implementation

[0027] The terms and words used in the following specification and claims are not limited to their literal meaning, but are used solely by the inventors to enable a clear and consistent understanding of this application. Therefore, it will be apparent to those skilled in the art that the following description of various embodiments of this application is provided for illustrative purposes only and not for the purpose of limiting the application as defined in the appended claims and their equivalents.

[0028] It is understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number.

[0029] While ordinal numbers such as "first," "second," etc., will be used to describe various components, there is no limitation on which components are used herein. The term is used only to distinguish one component from another. For example, a first component may be referred to as a second component, and similarly, a second component may be referred to as a first component, without departing from the teachings of the utility model concept. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0030] The terminology used herein is for the purpose of describing various embodiments only and is not intended to be limiting. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. It will also be understood that the terms “comprising” and / or “having” as used in this specification specify the presence of the described features, numbers, steps, operations, components, elements or combinations thereof, without excluding the presence or addition of one or more other features, numbers, steps, operations, components, elements or groups thereof.

[0031] Indicative hydraulic cylinder synchronous lifting mechanism, for reference Figures 2 to 6 According to a preferred embodiment of the present invention, a hydraulic cylinder synchronous lifting mechanism includes a fixed mold base 10, two first hydraulic cylinders 20, two first clamping seats 30, and a plurality of first synchronous mechanisms 40.

[0032] Specifically, such as Figures 2 to 4 As shown, two first hydraulic cylinders 20 are respectively disposed at both ends of the fixed mold base 10. Each first hydraulic cylinder 20 includes a first piston rod 201. In addition, each first piston rod 201 is fixedly connected to a first clamping seat 30. Furthermore, each first synchronization mechanism 40 includes two first racks 401, two first gears 402 and a first shaft 403. Each first clamping seat 30 is provided with at least one first rack 401. The first shaft 403 is rotatably mounted on the fixed mold base 10, and two first gears 402 are respectively provided at both ends of the first shaft 403. The two first gears 402 mesh with the two first racks 401 respectively.

[0033] It should be noted that, assuming more oil is injected into the first cylinder 20 and the corresponding first piston rod 201 moves downward a greater distance, the downward movement of the first piston rod 201 will cause the corresponding first clamping seat 30 to move downward by the same distance, and cause the first rack 401 located on the first clamping seat 30 to move downward by the same distance. Since the first shaft 403 is rotatably mounted on the fixed mold base 10, its position in the height direction remains unchanged. And since the first gear 402 at one end of the first shaft 403 meshes with the downward-moving first rack 401, the downward-moving first rack 401 will drive the first shaft 403 to rotate circumferentially. Through the first gear 402 at the other end of the first shaft 403, it will drive another first rack 401 to move downward synchronously. The downward-moving first rack 401 will then drive the corresponding first clamping seat 30 to move downward by a predetermined distance, and actively drive the first piston rod 201 connected to the first clamping seat 30 to move downward, thereby achieving the advantages of stability and applicability to multi-cylinder synchronous lifting scenarios.

[0034] Furthermore, to improve stability, such as Figure 4 As shown, a first synchronization mechanism 40 is provided on each side of the fixed mold base 10, and a first rack 401 is vertically arranged at each end of the first clamping seat 30.

[0035] In addition, to enable the first shaft 403 to be rotatably mounted on the fixed mold base 10, such as Figure 4 As shown, the hydraulic cylinder synchronous lifting mechanism also includes four sealing boxes 101. The four sealing boxes 101 are respectively located at the four corners of the fixed mold base 10, and two sealing boxes 101 are respectively provided on both sides of the fixed mold base 10. The sealing boxes 101 are fixedly connected to the fixed mold base 10, and the fixed connection method includes but is not limited to bolt connection. A first shaft 403 is provided between the two sealing boxes 101 on each side of the fixed mold base 10. The two ends of the first shaft 403 are rotatably mounted on the two sealing boxes 101 through bearings. In addition, the first rack 401 passes through the sealing box 101 from top to bottom, and the first gear 402 is located inside the sealing box 101.

[0036] Furthermore, each of the two first clamping seats 30 has a first mounting groove 301 on its opposite side. By providing the first mounting groove 301, the stamping seat of the stamping equipment can be mounted on the two first clamping seats 30.

[0037] Furthermore, in this application, to adapt to specific needs, such as Figures 2 to 4As shown, the hydraulic cylinder synchronous lifting mechanism further includes two second hydraulic cylinders 50, two second clamping seats 60, and two second synchronous mechanisms 70. The two second hydraulic cylinders 50 are respectively disposed at both ends of the fixed mold base 10. Each second hydraulic cylinder 50 includes a second piston rod 501. Each second piston rod 501 is fixedly connected to a second clamping seat 60. Each second synchronous mechanism 70 includes two second racks 701, two second gears 702, and a second shaft 703. Each second clamping seat 60 is provided with two first racks 401. The second shaft 703 is rotatably mounted on the sealing box 101. Two second gears 702 are respectively provided at both ends of the second shaft 703. The two second gears 702 mesh with the two second racks 701 respectively. The second clamping seat 60 is located directly above the first clamping seat 30. The first racks 401 and the first piston rod 201 pass through the second clamping seat 60. The length of the first piston rod 201 is greater than the length of the second piston rod 501.

[0038] In addition, each of the two second clamping seats 60 has a second mounting groove 601 on its opposite side, so as to install another stamping seat of the stamping equipment on the two second clamping seats 60.

[0039] It should be noted that, in this embodiment of the application, the first hydraulic cylinder 20 is activated first, and the first clamping seat 30 is moved downward by a predetermined distance, and then the second hydraulic cylinder 50 is activated, and the second clamping seat 60 is moved downward by a predetermined distance.

[0040] Furthermore, such as Figure 4 As shown, the synchronous lifting mechanism of the hydraulic cylinder also includes two measuring scales 80. Each measuring scale 80 includes a scale shell 801 and a scale body 802. The scale body 802 is slidably disposed in the scale shell 801. Both scale shells 801 are mounted on the fixed mold base 10. The scale body 802 of one measuring scale 80 is connected to a first clamping seat 30, and the scale body 802 of the other measuring scale 80 is connected to a second clamping seat 60. The connection method includes, but is not limited to, welding or bolt connection.

[0041] It should be noted that the measuring ruler 80 is set so that the operator can determine the distance moved by the first clamping seat 30 and the second clamping seat 60.

[0042] Furthermore, to achieve stability when the first clamping seat 30 and the second clamping seat 60 move up and down, such as... Figure 2As shown, a plurality of guide posts 102 are fixedly installed on the fixed mold base 10. In this application, the number of guide posts 102 is four, and each of the first clamping base 30 and each of the second clamping base 60 has a guide post 102 passing through both ends.

[0043] Furthermore, in this application, as Figure 4 and Figure 6 As shown, each of the first hydraulic cylinders 20 further includes a first cylinder body 202, a first piston 203, a first oil pipe 204, and a second oil pipe 205. Each of the second hydraulic cylinders 50 further includes a second cylinder body 502, a second piston 503, a third oil pipe 504, and a fourth oil pipe 505. The first piston 203 is slidably disposed within the first cylinder body 202 and divides the chamber within the first cylinder body 202 into a first upper chamber and a first lower chamber. The second piston 503 is slidably disposed within the second cylinder body 502 and divides the chamber within the second cylinder body 502 into a second upper chamber and a second lower chamber. The first oil pipe 204 communicates with the first upper chamber, the second oil pipe 205 communicates with the first lower chamber, the third oil pipe 504 communicates with the second upper chamber, and the fourth oil pipe 505 communicates with the second lower chamber.

[0044] It should be noted that when external oil is continuously injected into the first oil pipe 204, the first piston 203 moves downward and drives the first clamping seat 30 to move downward; when external oil is continuously injected into the second oil pipe 205, the first piston 203 moves upward and drives the first clamping seat 30 to move upward; when external oil is continuously injected into the third oil pipe 504, the second piston 503 moves downward and drives the second clamping seat 60 to move downward; when external oil is continuously injected into the fourth oil pipe 505, the second piston 503 moves upward and drives the second clamping seat 60 to move upward.

[0045] Furthermore, to reduce the weight of the fixed mold base 10, such as... Figure 4 As shown, the top of the fixed mold base 10 has a material removal hole 103.

[0046] In summary, the hydraulic cylinder synchronous lifting mechanism described in the embodiments of this application is explained, which provides advantages such as stability and applicability to multi-cylinder synchronous lifting scenarios.

[0047] It is worth mentioning that, in this embodiment, the hydraulic cylinder synchronous lifting mechanism has a simple structure, does not involve complex manufacturing processes or expensive materials, and is highly economical. At the same time, for manufacturers, the hydraulic cylinder synchronous lifting mechanism provided in this application is easy to produce and inexpensive, which is more conducive to controlling production costs and further facilitates product promotion and use.

[0048] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The function and structural principle of the present invention have been shown and explained in the embodiments, and any modifications or variations may be made to the implementation of the present invention without departing from these principles.

Claims

1. A hydraulic cylinder synchronous lifting mechanism, characterized in that: The hydraulic cylinder synchronous lifting mechanism includes A fixed mold base; and Two first hydraulic cylinders are respectively disposed at both ends of the fixed mold base, and each first hydraulic cylinder includes a first piston rod; and Two first clamping seats, each of the first piston rods being fixedly connected to a first clamping seat; and A plurality of first synchronization mechanisms, each of the first synchronization mechanisms including two first racks, two first gears and a first shaft, each of the first clamping seats having at least one first rack, the first shaft being rotatably mounted on the fixed mold base, and two first gears being provided at both ends of the first shaft, the two first gears meshing with the two first racks respectively.

2. The cylinder synchronous lifting mechanism according to claim 1, characterized in that: The fixed mold base is provided with a first synchronization mechanism on each side, and a first rack is vertically arranged at each end of the first clamping base.

3. The synchronous lifting mechanism of the oil cylinder according to claim 2, characterized in that: The hydraulic cylinder synchronous lifting mechanism further includes two second hydraulic cylinders, two second clamping seats, and two second synchronous mechanisms. The two second hydraulic cylinders are respectively located at both ends of the fixed mold base. Each second hydraulic cylinder includes a second piston rod, and each second piston rod is fixedly connected to a second clamping seat. Each second synchronous mechanism includes two second racks, two second gears, and a second shaft. Each second clamping seat is provided with two first racks, and two second gears are respectively provided at both ends of the second shaft. The two second gears mesh with the two second racks respectively. The second clamping seat is located directly above the first clamping seat. The first racks and the first piston rod pass through the second clamping seat, and the length of the first piston rod is greater than the length of the second piston rod.

4. The synchronous lifting mechanism of the oil cylinder according to claim 3, characterized in that: Each of the two first clamping seats has a first mounting groove on its opposite side, and each of the two second clamping seats has a second mounting groove on its opposite side.

5. The synchronous lifting mechanism of the oil cylinder according to claim 4, characterized in that: The hydraulic cylinder synchronous lifting mechanism also includes two measuring rulers. Each measuring ruler includes a ruler shell and a ruler body. The ruler body is slidably disposed in the ruler shell. Both ruler shells are mounted on the fixed mold base. The ruler body of one measuring ruler is connected to a first clamping seat, and the ruler body of the other measuring ruler is connected to a second clamping seat.

6. The synchronous lifting mechanism of the oil cylinder according to claim 5, characterized in that: A number of guide posts are fixedly installed on the fixed mold base, and each of the first clamping bases and each of the second clamping bases has a guide post passing through both ends.

7. The hydraulic cylinder synchronous lifting mechanism according to claim 6, characterized in that: Each of the first hydraulic cylinders further includes a first cylinder body, a first piston, a first oil pipe, and a second oil pipe. Each of the second hydraulic cylinders further includes a second cylinder body, a second piston, a third oil pipe, and a fourth oil pipe. The first piston is slidably disposed in the first cylinder body and divides the chamber within the first cylinder body into a first upper chamber and a first lower chamber. The second piston is slidably disposed in the second cylinder body and divides the chamber within the second cylinder body into a second upper chamber and a second lower chamber. The first oil pipe communicates with the first upper chamber, the second oil pipe communicates with the first lower chamber, the third oil pipe communicates with the second upper chamber, and the fourth oil pipe communicates with the second lower chamber.

8. The synchronous lifting mechanism of the oil cylinder according to claim 7, characterized in that: The top of the fixed mold base has a material removal hole.

Images