Punching hydraulic cylinder

Abstract

The utility model relates to the technical field of hydraulic cylinders, and discloses a stamping hydraulic cylinder which comprises a left cylinder body, the surface of the left cylinder body is fixedly connected with a locking support, the inner wall of the locking support is fixedly connected with a bearing, the inner wall of the bearing is fixedly connected with a first cylinder, and the surface of the first cylinder is fixedly connected with a second hollow plate. And the right side of the second hollow plate is fixedly connected with a second U-shaped plate. Through the arrangement of the locking support, the bearing, the first cylinder, the second hollow plate, the second U-shaped plate and the locking hole, after the locking column on the locking support is inserted into the locking hole, the second hollow plate cannot rotate through the matching of the locking column and the locking hole, after the locking column is separated from the locking hole, the second hollow plate can freely rotate, and meanwhile, the second U-shaped plate can rotate freely. And a plurality of locking holes are formed in the second hollow plate, so that the included angle between the left cylinder body and the right cylinder body can be adjusted at multiple angles, and the application range of the stamping hydraulic cylinder is widened.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic cylinders, in particular to a stamping hydraulic cylinder. Background Art

[0002] The hydraulic cylinder is a hydraulic actuator that converts hydraulic energy into mechanical energy and performs linear reciprocating motion (or swinging motion). It has a simple structure and reliable operation. When using it to achieve reciprocating motion, the deceleration device can be eliminated, and there is no transmission gap and the movement is smooth. Therefore, it is widely used in the hydraulic systems of various machines.

[0003] At present, most of the stamping hydraulic cylinders on the market connect two cylinder bodies together through a turntable, and through the cooperation of bolts, nuts and fixing caps, the two cylinder bodies can be made parallel or perpendicular to each other. For example, a double-acting stamping hydraulic cylinder disclosed in Chinese patent announcement No. CN210769643U, but because the two cylinder bodies can only be parallel or perpendicular to each other, the application range of the stamping hydraulic cylinder is relatively low. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings existing in the prior art, such as: at present, most of the stamping hydraulic cylinders on the market connect two cylinder bodies together through a turntable, and through the cooperation of bolts, nuts and fixing caps, the two cylinder bodies can be parallel or perpendicular to each other, but because the two cylinder bodies can only be parallel or perpendicular to each other, the application range of the stamping hydraulic cylinder is relatively low, and a stamping hydraulic cylinder is proposed.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A stamping hydraulic cylinder comprises a left cylinder body, a locking bracket is fixedly connected to the surface of the left cylinder body, a bearing is fixedly connected to the inner wall of the locking bracket, a first cylinder is fixedly connected to the inner wall of the bearing, a second hollow plate is fixedly connected to the surface of the first cylinder, a second U-shaped plate is fixedly connected to the right side of the second hollow plate, a right cylinder body is fixedly connected to the inner wall of the second U-shaped plate, a locking hole is opened inside the second hollow plate, and the inner wall of the locking hole contacts the surface of the locking bracket.

[0007] Preferably, the locking bracket includes a first U-shaped plate, an inner wall of the first U-shaped plate and a surface of the left cylinder body are fixedly connected with a connecting plate, the right side of the connecting plate, the right side of the first U-shaped plate and the surface of the bearing are fixedly connected with a first hollow plate, a sliding hole is opened inside the first hollow plate, a locking column is fittedly provided on the inner wall of the sliding hole and the inner wall of the locking hole, a vertical plate is fixedly connected to the left side of the locking column, a spring is fixedly connected to the left side of the vertical plate and the inner wall of the first U-shaped plate, a threaded hole is opened on the left side of the first U-shaped plate, a bolt is threadedly connected to the inner wall of the threaded hole, and the right side of the bolt contacts the left side of the vertical plate.

[0008] Preferably, the upper surfaces of the left cylinder body and the upper surfaces of the right cylinder body are fixedly connected to end covers, the inner walls of the end covers are fitted with piston columns, the surface of the piston columns are fixedly connected to piston blocks, the inner walls of the left cylinder body and the inner walls of the right cylinder body are in contact with the surface of the piston block, and the left side of the left cylinder body and the right side of the right cylinder body are fixedly connected to oil inlet and outlet pipes.

[0009] Preferably, through holes are provided on the front and rear sides of the first U-shaped plate, a sliding sleeve is fixedly connected to the inner wall of the through hole, trapezoidal blocks are fitted on the inner wall of the sliding sleeve and the front and rear sides of the vertical plate, a strip hole is provided inside the trapezoidal block, a second cylinder is fitted on the inner wall of the strip hole, and the upper and lower ends of the second cylinder are fixedly connected to the inner wall of the sliding sleeve.

[0010] Preferably, the length of the strip-shaped hole is greater than the diameter of the second cylinder.

[0011] Preferably, the angle between the side of the trapezoidal block close to the vertical plate and the vertical plate is 60°.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] (1) The utility model is provided with a locking bracket, a bearing, a first cylinder, a second hollow plate, a second U-shaped plate and a locking hole, wherein when the locking column on the locking bracket is inserted into the locking hole, the second hollow plate cannot rotate due to the cooperation between the locking column and the locking hole; when the locking column is separated from the locking hole, the second hollow plate can rotate freely; at the same time, a plurality of locking holes are provided on the second hollow plate, so that the angle between the left cylinder body and the right cylinder body can be adjusted at multiple angles, thereby improving the application range of the stamping hydraulic cylinder.

[0014] (2) The utility model provides a sliding sleeve, a trapezoidal block, a bar-shaped hole and a second cylinder, wherein when a user pinches the two trapezoidal blocks, the locking column can be inserted into the locking hole through the thrust of the inclined surface of the trapezoidal blocks on the vertical plate. Then, after the user aligns the locking column with the locking hole, the locking column can be inserted into the locking hole by pinching the two trapezoidal blocks, and the second hollow plate cannot rotate, thereby preventing the locking hole and the locking column from being misaligned due to the rotation of the second hollow plate when the user is tightening the bolt, and causing the locking column to be unable to be smoothly fixed in the locking hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a front view of the structure of the utility model;

[0017] Figure 3 It is a front view of the locking bracket in the utility model;

[0018] Figure 4 for Figure 3 Sectional view at AA;

[0019] Figure 5 It is a front view of the first U-shaped plate in the utility model;

[0020] Figure 6 It is a right side view of the first hollow plate in the utility model;

[0021] Figure 7 It is a left view of the second hollow plate in the utility model.

[0022] In the figure: 1. left cylinder body; 2. locking bracket; 201. first U-shaped plate; 202. connecting plate; 203. first hollow plate; 204. sliding hole; 205. locking column; 206. vertical plate; 207. spring; 208. threaded hole; 209. bolt; 3. bearing; 4. first cylinder; 5. second hollow plate; 6. second U-shaped plate; 7. right cylinder body; 8. locking hole; 9. end cover; 10. piston column; 11. piston block; 12. inlet and outlet oil pipes; 13. through hole; 14. sliding sleeve; 15. trapezoidal block; 16. strip hole; 17. second cylinder. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0025] Embodiment 1:

[0026] Reference Figure 1-7 A stamping hydraulic cylinder comprises a left cylinder body 1, a locking bracket 2 is fixedly connected to the surface of the left cylinder body 1, a bearing 3 is fixedly connected to the inner wall of the locking bracket 2, a first cylinder 4 is fixedly connected to the inner wall of the bearing 3, a second hollow plate 5 is fixedly connected to the surface of the first cylinder 4, the second hollow plate 5 can rotate around the first cylinder 4 through the bearing 3, a second U-shaped plate 6 is fixedly connected to the right side of the second hollow plate 5, a right cylinder body 7 is fixedly connected to the inner wall of the second U-shaped plate 6, a locking hole 8 is opened inside the second hollow plate 5, and the inner wall of the locking hole 8 contacts the surface of the locking bracket 2.

[0027] The locking bracket 2 includes a first U-shaped plate 201, the inner wall of the first U-shaped plate 201 and the surface of the left cylinder body 1 are fixedly connected with a connecting plate 202, the right side of the connecting plate 202, the right side of the first U-shaped plate 201 and the surface of the bearing 3 are fixedly connected with a first hollow plate 203, a sliding hole 204 is opened inside the first hollow plate 203, the inner wall of the sliding hole 204 and the inner wall of the locking hole 8 are fitted with a locking column 205, the locking column 205 is guided by the sliding hole 204, the left side of the locking column 205 is fixedly connected with a vertical plate 206, the left side of the vertical plate 206 and the first U-shaped plate 2 01 is fixedly connected with a spring 207, a threaded hole 208 is opened on the left side of the first U-shaped plate 201, and a bolt 209 is threadedly connected to the inner wall of the threaded hole 208, and the right side of the bolt 209 contacts the left side of the vertical plate 206. When the user rotates the bolt 209 to move the bolt 209 to the right, the thrust of the bolt 209 on the vertical plate 206 can make the locking column 205 inserted into the locking hole 8. When the user rotates the bolt 209 to move the bolt 209 to the left, the pulling force of the spring 207 on the vertical plate 206 separates the locking column 205 from the locking hole 8.

[0028] The upper surfaces of the left cylinder body 1 and the right cylinder body 7 are fixedly connected with end covers 9, the inner walls of the end covers 9 are fitted with piston rods 10, the surface of the piston rods 10 is fixedly connected with piston blocks 11, the inner walls of the left cylinder body 1 and the inner walls of the right cylinder body 7 are in contact with the surface of the piston block 11, and the left side of the left cylinder body 1 and the right side of the right cylinder body 7 are fixedly connected with oil inlet and outlet pipes 12.

[0029] Embodiment 2:

[0030] Reference Figure 1-5 The first U-shaped plate 201 is provided with through holes 13 on both the front and rear sides, and the inner wall of the through hole 13 is fixedly connected with a sliding sleeve 14, and the inner wall of the sliding sleeve 14 and the front and rear sides of the vertical plate 206 are fitted with trapezoidal blocks 15, and the angle between the trapezoidal block 15 and the vertical plate 206 is 60°. The interior of the trapezoidal block 15 is provided with a strip hole 16, and the inner wall of the strip hole 16 is fitted with a second cylinder 17, and the upper and lower ends of the second cylinder 17 are fixedly connected to the inner wall of the sliding sleeve 14, and the length of the strip hole 16 is greater than the diameter of the second cylinder 17. Through the cooperation of the second cylinder 17 and the strip hole 16, The trapezoidal block 15 and the sliding sleeve 14 cannot be separated. At the same time, when the user pinches the two trapezoidal blocks 15, the locking column 205 can be inserted into the locking hole 8 through the thrust of the inclined surface of the trapezoidal block 15 on the vertical plate 206. Then, after the user aligns the locking column 205 with the locking hole 8, the locking column 205 can be inserted into the locking hole 8 by pinching the two trapezoidal blocks 15, and the second hollow plate 5 cannot be rotated, thereby preventing the locking hole 8 and the locking column 205 from being staggered due to the rotation of the second hollow plate 5 when the user is tightening the bolt 209, and causing the locking column 205 to be unable to be smoothly fixed in the locking hole 8.

[0031] In the utility model, when the user uses the stamping hydraulic cylinder, the oil pump is first connected to the inlet and outlet oil pipes 12, and then the amount of hydraulic oil in the piston block 11 is adjusted by the oil pump, and the piston column 10 is moved by the cooperation of the hydraulic oil and the piston block 11. When the user needs to adjust the angle between the left cylinder body 1 and the right cylinder body 7, the bolt 209 is first rotated to make the bolt 209 move to the left under the action of the threaded hole 208, and the locking column 205 is separated from the locking hole 8 by the pulling force of the spring 207 on the vertical plate 206, and then the right cylinder body is rotated. 7, so that the angle between the left cylinder body 1 and the right cylinder body 7 changes. When the angle between the left cylinder body 1 and the right cylinder body 7 reaches a suitable value, first pinch the two trapezoidal blocks 15 so that the inclined surface of the trapezoidal blocks 15 applies a thrust to the vertical plate 206, and insert the locking column 205 into the locking hole 8, then rotate the bolt 209 so that the bolt 209 moves to the right under the action of the threaded hole 208, and the locking column 205 is fixed in the locking hole 8 by the bolt 209. At this time, the right cylinder body 7 cannot rotate through the cooperation of the locking column 205 and the locking hole 8.

[0032] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

[0033] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

Claims

1. A stamping hydraulic cylinder, comprising a left cylinder body (1), characterized in that: A locking bracket (2) is fixedly connected to the surface of the left cylinder body (1), a bearing (3) is fixedly connected to the inner wall of the locking bracket (2), a first cylinder (4) is fixedly connected to the inner wall of the bearing (3), a second hollow plate (5) is fixedly connected to the surface of the first cylinder (4), a second U-shaped plate (6) is fixedly connected to the right side of the second hollow plate (5), a right cylinder body (7) is fixedly connected to the inner wall of the second U-shaped plate (6), a locking hole (8) is provided inside the second hollow plate (5), and the inner wall of the locking hole (8) contacts the surface of the locking bracket (2).

2. A stamping hydraulic cylinder according to claim 1, characterized in that: The locking bracket (2) comprises a first U-shaped plate (201), the inner wall of the first U-shaped plate (201) and the surface of the left cylinder body (1) are fixedly connected with a connecting plate (202), the right side of the connecting plate (202), the right side of the first U-shaped plate (201) and the surface of the bearing (3) are fixedly connected with a first hollow plate (203), a sliding hole (204) is provided inside the first hollow plate (203), and the inner wall of the sliding hole (204) and the locking hole (8) are fixedly connected to each other. The inner wall is fitted with a locking column (205), the left side of the locking column (205) is fixedly connected to a vertical plate (206), the left side of the vertical plate (206) and the inner wall of the first U-shaped plate (201) are fixedly connected to a spring (207), the left side of the first U-shaped plate (201) is provided with a threaded hole (208), the inner wall of the threaded hole (208) is threadedly connected to a bolt (209), and the right side of the bolt (209) is in contact with the left side of the vertical plate (206).

3. A stamping hydraulic cylinder according to claim 1, characterized in that: The upper surfaces of the left cylinder body (1) and the upper surfaces of the right cylinder body (7) are both fixedly connected with end covers (9); the inner walls of the end covers (9) are fitted with piston rods (10); the surfaces of the piston rods (10) are fixedly connected with piston blocks (11); the inner walls of the left cylinder body (1) and the inner walls of the right cylinder body (7) are both in contact with the surface of the piston blocks (11); and the left side of the left cylinder body (1) and the right side of the right cylinder body (7) are both fixedly connected with oil inlet and outlet pipes (12).

4. A stamping hydraulic cylinder according to claim 2, characterized in that: The first U-shaped plate (201) is provided with through holes (13) on both the front and rear sides, the inner wall of the through hole (13) is fixedly connected with a sliding sleeve (14), the inner wall of the sliding sleeve (14) and the front and rear sides of the vertical plate (206) are fitted with trapezoidal blocks (15), the interior of the trapezoidal block (15) is provided with a strip hole (16), the inner wall of the strip hole (16) is fitted with a second cylinder (17), and the upper and lower ends of the second cylinder (17) are fixedly connected to the inner wall of the sliding sleeve (14).

5. A stamping hydraulic cylinder according to claim 4, characterized in that: The length of the strip-shaped hole (16) is greater than the diameter of the second cylinder (17).

6. A stamping hydraulic cylinder according to claim 4, characterized in that: The angle between the side of the trapezoidal block (15) close to the vertical plate (206) and the vertical plate (206) is 60 degrees.

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