Hydraulic machine

Abstract

The utility model discloses a hydraulic machine which comprises a machine body, a working table arranged on the machine body, a middle beam which is arranged on the machine body in a sliding mode and reciprocates towards the working table, a hydraulic cylinder arranged on the machine body and connected with the middle beam, and a die arranged between the working table and the middle beam. The die comprises a fixed lower die arranged on the working table and a movable upper die arranged on the middle beam, a containing area for containing a product to be machined is formed on the fixed lower die, a plurality of fixing claws for fixing the product to be machined are hinged to the fixed lower die, a control handle is movably arranged on the fixed lower die, and the control handle is connected with the movable upper die. And a linkage assembly for controlling each fixed claw to act through the control handle is connected between the control handle and the plurality of fixed claws. The utility model has the following advantages and effects that the product to be processed can be conveniently aligned and fixed, so that the workload is reduced, and the production efficiency of the hydraulic machine is improved.

Description

Technical Field

[0001] The utility model relates to mechanical processing equipment, in particular to a hydraulic press. Background Art

[0002] A hydraulic press is a machine that uses the static pressure of liquid to process metal, plastic, rubber, wood, powder and other products. It is often used in pressing and forming processes, such as forging, stamping, cold extrusion, straightening, bending, flanging, sheet metal drawing, powder metallurgy, press fitting, etc. Its principle is to use Pascal's law to make a machine that uses liquid pressure transmission. There are many types. Of course, the uses are also diverse. For example, according to the type of liquid that transmits pressure, there are two major categories: oil press and water press.

[0003] The existing hydraulic press includes a fuselage, a workbench arranged on the fuselage, an intermediate beam slidably arranged on the fuselage and reciprocating toward the workbench, a hydraulic cylinder arranged on the fuselage and driving the intermediate beam to move, a mold arranged between the workbench and the intermediate beam, and a fixed component for positioning the product to be processed. The mold includes a fixed lower mold arranged on the workbench and a movable upper mold arranged on the intermediate beam, and the fixed component includes a plurality of pressing blocks and bolts and nuts connecting each pressing block to the workbench. The product to be processed is placed above the fixed lower mold, and after the position between the product to be processed and the fixed lower mold is aligned, the product to be processed is pressed and fixed by the pressing blocks in conjunction with the bolts and nuts, and then precise processing is achieved by stamping the upper and lower molds. However, the fixing method using bolts and nuts in conjunction with the pressing blocks is cumbersome to operate and requires a large amount of work, which greatly reduces the production efficiency of the hydraulic press. In response to the above problems, the present invention was conceived. Utility Model Content

[0004] The utility model aims to provide a hydraulic press, which can realize convenient positioning and fixing of products to be processed, thereby reducing workload and improving the production efficiency of the hydraulic press.

[0005] The above technical purpose of the utility model is achieved through the following technical solutions: a hydraulic press, including a fuselage, a workbench arranged on the fuselage, an intermediate beam slidably arranged on the fuselage and reciprocating toward the workbench, a hydraulic cylinder arranged on the fuselage and connected to the intermediate beam, and a mold arranged between the workbench and the intermediate beam, the mold including a fixed lower mold arranged on the workbench and a movable upper mold arranged on the intermediate beam, a placement area for placing the product to be processed is formed on the fixed lower mold, a plurality of fixed claws for fixing the product to be processed are hinged on the fixed lower mold, a control handle is movably arranged on the fixed lower mold, and a linkage component for controlling the movement of each fixed claw through the control handle is connected between the control handle and the plurality of fixed claws.

[0006] By adopting the above technical solution, the product to be processed is placed in the placement area of ​​the fixed lower die and the position between the product to be processed and the fixed lower die is aligned. Then, the control handle is operated to cooperate with the set linkage component to control the fixed claws to clamp and fix the product to be processed, so as to achieve convenient alignment and fixation of the processed products, reduce workload and improve the production efficiency of the hydraulic press.

[0007] It is further configured as follows: a plurality of the fixing claws are distributed around the outer periphery of the placement area, and the control handle synchronously controls each fixing claw to reciprocate toward one side of the placement area through a linkage component.

[0008] By adopting the above technical solution, a synchronous control structure is set up and coordinated so that the fixed claws can align the product to be processed during the process of clamping and fixing the product to be processed, so that the product to be processed does not need to be manually centered and positioned when placed in the placement area, making the operation more convenient.

[0009] It is further configured as follows: the linkage assembly includes a linkage wheel rotatably arranged in the fixed lower mold and connected to the control handle, a plurality of connecting rods slidably arranged in the fixed lower mold and connecting the fixed claw and the linkage wheel, an ejection spring driving each fixed claw to rotate in the opposite placement area, and a plurality of ejection inclined surfaces formed on the linkage wheel and corresponding to each connecting rod, a plurality of the connecting rods and a plurality of fixed claws are arranged in a one-to-one correspondence, and the ejection inclined surfaces drive the connecting rods to move toward the fixed claws.

[0010] By adopting the above technical solution, the control handle drives the linkage wheel to rotate, and the ejection slope is used to drive the link rod to move toward the fixed claw and resist the fixed claw to rotate around the hinge toward the placement area, so as to clamp and fix the product to be processed in the placement area. When the force acting on the control handle is released, the fixed claw and the product to be processed are separated under the action of the ejection spring.

[0011] It is further configured as follows: each of the ejection slopes is arranged on the outer peripheral wall of the linkage wheel, and each of the ejection slopes has two ends along the rotation direction of the linkage wheel, one end of which is transitionally connected to the outer peripheral wall of the linkage wheel and the other end of which is gradually protruded outwards.

[0012] By adopting the above technical solution, this setting structure enables the ejection inclined surface to achieve stable driving of the connecting rod, and the structure is more reliable.

[0013] It is further configured as follows: a top hole connecting the placement area and the control handle is provided on the fixed lower mold, and an ejection component linked to the control handle is provided in the top hole.

[0014] By adopting the above technical solution, the control handle is rotated toward one side to cooperate with the provided linkage assembly and the fixed claw to realize the clamping and fixing of the product to be processed. After the stamping process of the product is completed, the control handle is reset to release the fixation of the fixed claw on the product, and then the control handle is rotated toward the other side to lift the product out of the placement area through the provided ejection assembly, so as to facilitate the separation operation of the product and the placement area, making the operation more convenient.

[0015] It is further configured that: the ejection assembly includes a ejection block slidably arranged in the ejection hole and reciprocating between the placement area and the control handle, a spiral inclined surface formed on one end of the ejection block facing the control handle, and a protrusion connected to the control handle and rotating around the spiral inclined surface, and the ejection hole limits the circumferential rotation of the ejection block.

[0016] By adopting the above technical solution, the control handle drives the protrusion to rotate, and the height of the top block is changed by the different positions of the protrusion against the spiral inclined surface, so as to complete the lifting operation.

[0017] In summary, the utility model has the following beneficial effects: the utility model can realize convenient positioning and fixing of the product to be processed, thereby reducing the workload and improving the production efficiency of the hydraulic press. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of an embodiment;

[0019] Figure 2 It is a partial structural schematic diagram of an embodiment;

[0020] Figure 3 It is a partial cross-sectional view of an embodiment;

[0021] Figure 4 is another partial structural schematic diagram of the embodiment;

[0022] Figure 5 is another partial cross-sectional view of the embodiment;

[0023] Figure 6 Schematic diagram of the structure of the top block in the embodiment.

[0024] In the figure: 1. body; 2. workbench; 3. middle beam; 4. hydraulic cylinder; 5. mold; 51. fixed lower mold; 52. movable upper mold; 6. placement area; 7. fixed claw; 8. control handle; 91. linkage wheel; 92. connecting rod; 93. ejector spring; 94. ejector slope; 10. ejector hole; 11. ejector block; 12. spiral ejector slope; 13. bump; 14. product. DETAILED DESCRIPTION

[0025] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0026] refer to Figures 1 to 6 A hydraulic press comprises a machine body 1, a workbench 2 fixedly arranged on the machine body 1, an intermediate beam 3 slidably arranged on the machine body 1 and reciprocating toward the workbench 2, a hydraulic cylinder 4 arranged on the machine body 1 and connected to the intermediate beam 3, and a mold 5 fixedly arranged between the workbench 2 and the intermediate beam 3. The hydraulic cylinder 4 is fixedly arranged on the machine body 1 and the piston rod is fixedly connected to the intermediate beam 3. The mold 5 comprises a fixed lower mold 51 fixedly arranged on the workbench 2 and a movable upper mold 52 fixedly arranged on the intermediate beam 3, and a placement area 6 for placing a product 14 to be processed is formed on the fixed lower mold 51. A plurality of fixed claws 7 for fixing the product 14 to be processed are hinged on the outer side wall of the fixed lower mold 51, and a control handle 8 is movably arranged on the fixed lower mold 51, and a linkage component for controlling the movement of each fixed claw 7 through the control handle 8 is connected between the control handle 8 and the plurality of fixed claws 7.

[0027] A plurality of fixed claws 7 are arranged around the outer periphery of the placement area 6, and the control handle 8 synchronously controls each fixed claw 7 to reciprocate toward one side of the placement area 6 through a linkage assembly. The linkage assembly includes a linkage wheel 91 rotatably arranged in the fixed lower mold 51 and fixedly connected to the control handle 8, a plurality of link rods 92 slidably arranged in the fixed lower mold 51 and connecting the fixed claws 7 and the linkage wheel 91, an ejection spring 93 driving each fixed claw 7 to rotate away from the placement area 6, and a plurality of ejection inclined surfaces 94 integrally formed on the linkage wheel 91 and corresponding to each link rod 92, and the plurality of link rods 92 are arranged one by one with the plurality of fixed claws 7, and the ejection inclined surfaces 94 drive the link rods 92 to abut against the fixed claws 7.

[0028] One end of the ejection spring 93 is fixedly connected to the fixed claw 7, and the other end is fixedly connected to the fixed lower mold 51; the free end of the control handle 8 extends out of the fixed lower mold 51. Each ejection slope 94 is arranged on the outer peripheral wall of the linkage wheel 91, and each ejection slope 94 has two ends along the rotation direction of the linkage wheel 91, one end of which is excessively connected to the outer peripheral wall of the linkage wheel 91, and the other end of which is gradually protruded outward.

[0029] The fixed lower die 51 is provided with a top hole 10 connecting the placement area 6 and the control handle 8, and an ejection assembly linked with the control handle 8 is provided in the top hole 10. The ejection assembly includes a top block 11 slidably arranged in the top hole 10 and reciprocating between the placement area 6 and the control handle 8, a spiral slope 12 integrally formed at one end of the top block 11 facing the control handle 8, and a convex block 13 integrally connected to the control handle 8 and rotating around the spiral slope 12, and the top hole 10 limits the circumferential rotation of the top block 11.

[0030] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A hydraulic press, comprising a machine body (1), a workbench (2) arranged on the machine body (1), an intermediate beam (3) slidably arranged on the machine body (1) and reciprocating toward the workbench (2), a hydraulic cylinder (4) arranged on the machine body (1) and connected to the intermediate beam (3), and a mold (5) arranged between the workbench (2) and the intermediate beam (3), the mold (5) comprising a fixed lower mold (51) arranged on the workbench (2) and a movable upper mold (52) arranged on the intermediate beam (3), the fixed lower mold (51) being formed with a placement area (6) for placing a product (14) to be processed, characterized in that: A plurality of fixed claws (7) for fixing the product (14) to be processed are hingedly connected to the fixed lower die (51), a control handle (8) is movably provided on the fixed lower die (51), and a linkage assembly for controlling the movement of each fixed claw (7) through the control handle (8) is connected between the control handle (8) and the plurality of fixed claws (7).

2. The hydraulic press according to claim 1, characterized in that: A plurality of the fixed claws (7) are distributed around the outer periphery of the placement area (6), and the control handle (8) synchronously controls each fixed claw (7) to reciprocate toward one side of the placement area (6) through a linkage assembly.

3. The hydraulic press according to claim 2, characterized in that: The linkage assembly comprises a linkage wheel (91) rotatably arranged in the fixed lower mold (51) and connected to the control handle (8), a plurality of linkage rods (92) slidably arranged in the fixed lower mold (51) and connecting the fixed claw (7) and the linkage wheel (91), an ejection spring (93) driving each fixed claw (7) to rotate in the opposite placement area (6), and a plurality of ejection inclined surfaces (94) formed on the linkage wheel (91) and corresponding to each linkage rod (92), wherein the plurality of linkage rods (92) and the plurality of fixed claws (7) are arranged in a one-to-one correspondence, and the ejection inclined surfaces (94) drive the linkage rods (92) to move toward the fixed claws (7).

4. The hydraulic press according to claim 3, characterized in that: Each of the ejection slopes (94) is arranged on the outer peripheral wall of the linkage wheel (91), and each of the ejection slopes (94) has two ends along the rotation direction of the linkage wheel (91) with one end being transitionally connected to the outer peripheral wall of the linkage wheel (91) and the other end being gradually protruded outwards.

5. The hydraulic press according to claim 1, characterized in that: The fixed lower mold (51) is provided with a top hole (10) connecting the placement area (6) and the control handle (8), and an ejection component linked to the control handle (8) is provided in the top hole (10).

6. The hydraulic press according to claim 5, characterized in that: The ejection assembly comprises an ejection block (11) which is slidably arranged in an ejection hole (10) and reciprocates between a placement area (6) and a control handle (8), a spiral bevel (12) formed at one end of the ejection block (11) facing the control handle (8), and a protrusion (13) connected to the control handle (8) and rotating around the spiral bevel (12), wherein the ejection hole (10) limits the circumferential rotation of the ejection block (11).

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