Lifting mechanism for sliding block

Abstract

The lifting mechanism for the sliding block comprises a mounting base, an adjusting screw rod, a pull rod and a sliding base, a containing cavity is formed in the mounting base, the adjusting screw rod is installed in the containing cavity, a first cavity is formed in the adjusting screw rod, the top end of the pull rod is located in the first cavity, and a second cavity is formed in the sliding base. The bottom of the pull rod penetrates through the second cavity and is fixedly installed on the sliding block, the sliding base is installed in the containing cavity in a sliding mode, the sliding base is installed in the vertical direction, a first piston is installed on the top of the pull rod and is located in the first cavity, and a second piston is installed below the pull rod and is located in the second cavity; a first oil inlet hole and a second oil inlet hole are formed below the adjusting screw rod, the first oil inlet hole is communicated with the first oil cavity, and the second oil inlet hole is communicated with the second oil cavity. According to the lifting mechanism for the sliding block, under the condition that the die is not disassembled, the die can be rapidly lifted so that the space distance for maintenance can be reserved, and maintenance of a punch can be directly completed on a machine table.

Description

TECHNICAL FIELD

[0001] The utility model relates to punch press technology field, concretely is a kind of lifting mechanism for slider. BACKGROUND

[0002] The existing high-speed punch press sets punch on slider, drives the displacement of punch by the up-down movement of slider, and completes the stamping of product.But large mould generally needs to maintain or replace punch after several million times of stamping, and in the usual case, people need to disassemble punch from machine tool to maintain, but for large-tonnage high-speed punch press, the difficulty of disassembly and installation of mould is relatively larger, and each disassembly and installation will consume a lot of manpower and material resources. CONTENT OF UTILITY MODEL

[0003] The utility model aims at providing a kind of lifting mechanism for slider to solve the technical problem in the background art.

[0004] To achieve the foregoing object, the utility model provides the following technical scheme:

[0005] A kind of lifting mechanism for slider, including mounting seat, adjusting screw rod, pull rod and slide base, the mounting seat is equipped with containing cavity, the adjusting screw rod is installed in containing cavity, the adjusting screw rod is equipped with first cavity, the top of pull rod is in first cavity, the slide base is equipped with second cavity, the bottom of pull rod passes through second cavity and is fixedly installed with slider, the slide base is slidably installed in containing cavity, the slide base is installed along vertical direction, the top of pull rod is installed with first piston, the first piston is in first cavity, the lower portion of pull rod is installed with second piston, the second piston is in second cavity, the outer diameter of second piston is greater than the outer diameter of first piston;The first oil cavity of sealed structure between the first piston and the bottom inner wall of first cavity, the second oil cavity of sealed structure between the second piston and the bottom inner wall of second cavity, the first oil inlet hole and the second oil inlet hole are respectively arranged below the adjusting screw rod, the first oil inlet hole is communicated with first oil cavity, the second oil inlet hole is communicated with second oil cavity.

[0006] The first oil inlet hole is in the axial position of the bottom of pull rod, first oil inlet channel is arranged in pull rod, and the first oil inlet hole is connected with first oil cavity, the pull rod is further installed with backing plate below, the second oil inlet hole is arranged in the side of backing plate, and the second oil inlet channel is arranged below the pull rod, and the second oil inlet hole is connected with second oil cavity.

[0007] The pull rod is provided with the protruding limit boss, and the limit boss is below the adjusting screw rod.

[0008] The adjusting screw is further provided with a mold adjusting assembly, which is arranged in the second cavity and used for adjusting the height of the sliding block.

[0009] The mold adjusting assembly comprises a worm, a worm wheel and a threaded sleeve, the worm wheel is rotatably arranged in the accommodating cavity, the worm is arranged in engagement with the worm wheel along the horizontal direction, the threaded sleeve is internally provided with mounting holes, the mounting holes are sequentially provided with a first hole position and a second hole position from top to bottom, the first hole position is internally provided with a thread, the first hole position is threadedly connected with the bottom of the adjusting screw, the limiting boss is arranged in the second hole position, the outer side of the threaded sleeve is fixedly connected with the worm wheel through a key block, and the sliding base is slidingly arranged on the outer side of the threaded sleeve.

[0010] Compared with the prior art, the lifting mechanism for the sliding block has a compact structure, the lifting mechanism and the mold adjusting assembly are arranged on the sliding block, the two oil chambers are used for quickly lifting and restoring the sliding block, when the mold needs to be repaired, the whole sliding block is lifted upward through the sliding block lifting structure, the mold can be quickly lifted to leave a space distance for maintenance without disassembling the mold, the maintenance of the punch can be directly completed on the machine table, the working efficiency is greatly improved, and manpower and material resources are saved, and the mold adjusting assembly can directly adjust the position of the threaded sleeve on the adjusting screw, thereby adjusting the position of the sliding block, and the adjustment is simple and fast. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 The structure of the present application is shown in the structure diagram of the present application.

[0012] Figure 2 The lifting state of the present application is shown in the lifting state diagram of the present application. DETAILED DESCRIPTION

[0013] The technical solutions in the embodiments of the present application will be clearly and completely described in combination with the drawings of the embodiments of the present application.

[0014] Specific embodiment 1: please refer to Figure 1 and Figure 2 In the embodiments of the present application, a lifting mechanism for a sliding block comprises a mounting seat 2, an adjusting screw 3, a pull rod 4 and a sliding base 5, the mounting seat 2 is internally provided with an accommodating cavity 201, the adjusting screw 3 is arranged in the accommodating cavity 201, the adjusting screw 3 is internally provided with a first cavity 301, the top end of the pull rod 4 is arranged in the first cavity 301, the sliding base 5 is internally provided with a second cavity 501, the bottom of the pull rod 4 passes through the second cavity 501 and is fixedly arranged with the sliding block 1, the sliding base 5 is slidingly arranged in the accommodating cavity 201, the sliding base 5 is arranged along the vertical direction, and an oil seal cover 202 is fixedly arranged at the bottom of the mounting seat 2 and in contact with the outer side wall of the sliding base 5.

[0015] The first piston 401 is installed on the top of the pull rod 4 and is in the first cavity 301, the second piston 402 is installed below the pull rod 4 and is in the second cavity, the outer diameter of the second piston 402 is larger than that of the first piston 401; the first oil cavity A is formed between the first piston 401 and the inner wall of the bottom of the first cavity 301, the second oil cavity B is formed between the second piston 402 and the inner wall of the bottom of the second cavity 501, the first oil inlet hole 404 and the second oil inlet hole 701 are respectively arranged below the adjusting screw 3, the first oil inlet hole 404 is communicated with the first oil cavity A, and the second oil inlet hole 701 is communicated with the second oil cavity B.

[0016] The first oil inlet hole 404 is arranged at the axial position of the bottom of the pull rod 4, the first oil inlet channel 405 is arranged in the pull rod 4 and is communicated between the first oil inlet hole 404 and the first oil cavity A, the second oil inlet hole 701 is arranged on the side of the base plate 7, and the second oil inlet channel 502 is arranged below the pull rod 4 and is communicated between the second oil inlet hole 701 and the second oil cavity B.

[0017] When the mold is lifted, the first oil cavity A is filled with oil, the second oil cavity B is drained, the base plate 7 and the sliding block 1 are fixedly installed, so that the base plate 7 and the sliding block 1 are lifted synchronously; when the mold height is restored, the second oil cavity B is filled with oil, the first oil cavity A is drained, the sliding block 1 is lowered, and the original set mold height is restored.

[0018] The adjusting screw 3 is further provided with a die adjusting assembly 6, which is arranged in the second cavity 501 and used for adjusting the height of the slide block 1. The die adjusting assembly 6 comprises a worm gear 601, a worm wheel 602 and a threaded sleeve 603. The worm wheel 602 is rotatably arranged in the accommodating cavity 201. The worm gear 601 is arranged in a horizontal direction and is connected with the worm wheel 602 in a meshing mode. The threaded sleeve 603 is provided with mounting holes, which are sequentially a first hole position 604-1 and a second hole position 604-2 from top to bottom. The first hole position 604-1 is provided with an internal thread and is threadedly connected with the bottom of the adjusting screw 3. The limiting boss 403 is arranged in the second hole position 604-2. The threaded sleeve 603 is fixedly arranged outside the worm wheel 602 through a key block. The slide base 5 is slidably arranged outside the threaded sleeve 603. When the die is adjusted, the pressure in the second oil cavity B is reduced to about 100 kg, the oil in the first oil cavity A is completely discharged, the worm wheel 602 and the worm gear 601 are rotated, the adjusting screw 3 is not moved, the threaded sleeve 603 is rotated along with the rotation of the worm wheel 602, thereby realizing the up-down displacement of the threaded sleeve 603, driving the pull rod 4, the slide base 5, the backing plate 7 and the slide block 1 to synchronously move up and down, and adjusting to the set position. After that, the pressure in the second oil cavity B is adjusted to about 200 kg, a high-pressure oil pad is formed, the first oil inlet hole 404 is communicated with the first oil cavity A, the oil pressure at this position can be used to pull the threaded sleeve 603 and the adjusting screw 3 (the adjusting screw 3 is not moved) to eliminate the gap between the threads, and then the subsequent stamping operation can be performed.

[0019] Compared with the prior art, the lifting mechanism for the slide block is compact in structure layout. The lifting mechanism and the die adjusting assembly are arranged on the slide block. The slide block is quickly lifted and recovered by using two oil cavities. When the die needs to be repaired, the whole slide block is lifted upward through the slide block lifting structure. In this way, the die can be quickly lifted to leave a space distance for maintenance without disassembling the die. The maintenance of the punch can be directly completed on the machine table. The working efficiency is greatly improved. The manpower and material resources are saved. In addition, the die adjusting assembly arranged can directly adjust the position of the threaded sleeve on the adjusting screw, thereby adjusting the position of the slide block. The adjustment mode is simple and fast.

[0020] It is obvious for those skilled in the art that the present application is not limited to the details of the foregoing exemplary embodiments, but can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the foregoing description, and all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0021] Furthermore, it should be understood that although the specification is described in terms of embodiments, not every embodiment includes every feature described. The specification can include implicit combinations of explicitly mentioned features and / or explicit combinations of implicitely mentioned features. Each embodiment depends on the explicit combinations of features and / or the implicit combinations of features made specifically within that embodiment, and each such embodiment can be combined with every other such embodiment to create further embodiments.

Claims

1. A lifting mechanism for a slider, characterized by: The adjusting screw is arranged in the accommodating cavity, the first cavity is arranged in the adjusting screw, the top end of the pull rod is arranged in the first cavity, the second cavity is arranged in the sliding block, the bottom of the pull rod is fixedly installed through the second cavity and the sliding block, the sliding block is slidingly installed in the accommodating cavity, the sliding block is installed along the vertical direction, the first piston is installed at the top of the pull rod, the first piston is arranged in the first cavity, the second piston is installed below the pull rod, the second piston is arranged in the second cavity, and the outer diameter of the second piston is greater than that of the first piston.

2. A lifting mechanism for a slider according to claim 1, characterized in that: The first oil hole is arranged at the axial position of the bottom of the pull rod, the first oil hole is connected with the first oil cavity through the first oil channel arranged in the pull rod, the second oil hole is arranged on the side of the base plate, and the second oil channel is arranged below the pull rod and connected with the second oil cavity.

3. A lifting mechanism for a slider according to claim 2, characterized in that: The pull rod is provided with the protruding limiting boss, and the limiting boss is arranged below the adjusting screw.

4. A lifting mechanism for a slider according to claim 3, characterized in that: The adjusting screw is further provided with a die adjusting assembly, the die adjusting assembly is arranged in the second cavity, and the die adjusting assembly is used for adjusting the height of the sliding block.

5. A lifting mechanism for a slider according to claim 4, characterized in that: The die adjusting assembly comprises a worm, a worm wheel and a threaded sleeve, the worm wheel is rotatably installed in the accommodating cavity, the worm is arranged in mesh connection with the worm wheel along the horizontal direction, the threaded sleeve is provided with a mounting hole, the mounting hole comprises a first hole position and a second hole position from top to bottom, the first hole position is provided with an internal thread, the first hole position is in threaded connection with the bottom of the adjusting screw, the limiting boss is arranged in the second hole position, the threaded sleeve is fixedly installed on the outer side of the worm wheel through a key block, and the sliding block is slidingly installed on the outer side of the threaded sleeve.

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