Die force load separation support for press moving table

CN122808264APending Publication Date: 2026-09-25HEFEI METALFORMING MACHINE TOOL
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Patent Information

Application Number
CN202611302120.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-08-26
Publication Date
2026-09-25

AI Technical Summary

Technical Problem

生产线作业过程中,压机产生的数千吨级模具压载力与冲压冲击力会直接作用于移动工作台,传统移动工作台采用一体式结构设计,其滚轮、导轨等核心移动部件需直接承受高强度的冲压载荷与冲击,极易出现磨损、变形等问题,不仅会降低工作台的定位精度,影响冲压产品质量,还会大幅缩短移动机构的使用寿命,增加设备的维护频率与成本,甚至会中断生产线的连续作业,制约了31900KN多连杆压机冲压自动生产线优势的充分发挥

Benefits of technology

本发明通过将移动工作台设计为移动车体与工作台板的分体式结构,通过承托机构的双承托架可将承载模具的工作台板与移动车体分离,使压机工作时的模具压载力与冲压冲击力从移动车体转移至承托机构,并最终传递至压机工作台基础结构,避免移动车体的滚轮、导轨等核心移动部件承受高强度载荷,从根源上解决了传统装置中移动部件易磨损、变形的问题,大幅延长移动机构的使用寿命,降低设备维护成本。

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Abstract

The application relates to the technical field of presses and discloses a die force load separation supporting device of a press moving workbench, which comprises a moving workbench and a supporting mechanism installed on a press workbench. The moving workbench comprises a moving vehicle body and a workbench plate, and the workbench plate is detachably installed on the moving vehicle body through two groups of dismounting modules. The die force load separation supporting device of the press moving workbench can separate the workbench plate bearing the die from the moving vehicle body through the double supporting frames of the supporting mechanism, so that the die pressure load and the stamping impact force during the working of the press are transferred from the moving vehicle body to the supporting mechanism and finally to the press workbench foundation structure, the rollers, guide rails and other core moving components of the moving vehicle body can avoid bearing high-strength loads, the problem that the moving components are prone to wear and deformation in the traditional device is solved from the root, the service life of the moving mechanism is greatly prolonged, and the equipment maintenance cost is reduced.
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Description

Technical Field

[0001] This invention belongs to the field of press technology, specifically relating to a mold force load separation and support device for a press moving worktable. Background Technology

[0002] In the automotive, light industry, electrical appliance and defense manufacturing sectors, the demand for cold stamping of thin sheet metal parts continues to rise, which puts forward higher requirements for the automation, intelligence, efficiency and processing accuracy of stamping production. The 31900KN multi-link press automatic stamping production line has emerged and has become an indispensable core equipment for the processing of thin sheet metal parts in this industry.

[0003] Currently, the automation upgrade of stamping production lines has become a mainstream trend in the industry. Traditional stamping equipment suffers from problems such as single-machine operation, cumbersome process connections, and excessive manual intervention. This not only results in low production efficiency but also leads to inconsistent product quality due to human error, making it difficult to meet the large-scale, high-precision production needs of various industries. In contrast, the 31900KN multi-link press automated stamping production line, with its multi-machine collaborative structural design, achieves automated and intelligent operation of the stamping process, significantly improving the processing accuracy and production efficiency of thin sheet metal parts, effectively solving the pain points of traditional stamping production.

[0004] Meanwhile, in practical applications, the core component of this type of large-tonnage multi-link press automatic stamping production line, the press moving worktable, as a key component for mold bearing and displacement, faces severe working loads over a long period. During production line operation, the thousands of tons of mold bearing force and stamping impact force generated by the press directly act on the moving worktable. Traditional moving worktables adopt an integrated structure design, and their core moving components such as rollers and guide rails must directly bear high-intensity stamping loads and impacts, making them prone to wear and deformation. This not only reduces the positioning accuracy of the worktable and affects the quality of stamped products, but also significantly shortens the service life of the moving mechanism, increases the frequency and cost of equipment maintenance, and may even interrupt continuous production line operation, thus hindering the full realization of the advantages of the 31900KN multi-link press automatic stamping production line. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a mold force separation and support device for a press moving worktable, thereby solving the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a mold force load separation and support device for a press moving worktable, comprising: a moving worktable and a support mechanism installed on the press worktable;

[0007] The mobile workbench includes a mobile vehicle body and a workbench plate, and the workbench plate is detachably installed on the mobile vehicle body through two sets of disassembly and assembly modules. The supporting mechanism includes two support frames and a hydraulic cylinder for moving the two support frames up and down. The two support frames are located on both sides of the movable worktable, and the supporting ends of the two support frames extend into the gap between the movable vehicle body and the worktable, so as to lift the worktable by moving the two support frames upward.

[0008] Preferably, the mobile worktable further includes a guide rail frame mounted on the press worktable, and the mobile worktable is equipped with a drive system for moving the mobile vehicle body along the guide rail frame's guide trajectory.

[0009] When the mobile vehicle moves along the track of the guide rail to the press workbench via the drive system, the supporting ends of the two support brackets automatically insert into the gap between the mobile vehicle and the workbench, and automatically release the locking of the disassembly module between the mobile vehicle and the workbench, so that the two support brackets drive the workbench to lift and support during the lifting movement.

[0010] Preferably, the top of the mobile vehicle is equipped with a support frame for supporting the worktable and several positioning cylinders, and the bottom of the worktable is fixedly connected with several positioning shafts inserted into the positioning cylinders.

[0011] Preferably, the top of each of the two support brackets is fixedly connected with two positioning protrusions A, and both sides of the bottom of the worktable are provided with positioning recesses B for the insertion of the positioning protrusions A, for positioning when the two support brackets lift the worktable upward.

[0012] Preferably, the disassembly and assembly module includes a U-shaped locking block fixed to the top of the mobile vehicle body and a conversion shaft rotatably connected to the inside of the worktable, with a locking block fixedly connected to the outer surface of the bottom of the conversion shaft; One end of the card block is a snap-fit ​​part Q1, which is used to insert into the interior of the U-shaped lock block to form a snap-fit ​​between the workbench and the moving vehicle body; The other end of the locking block is the force-bearing part Q2, which is located in the displacement trajectory of the support frame. When the moving vehicle moves to the press worktable, the supporting end of the support frame squeezes the force-bearing part Q2, causing the conversion shaft to rotate. The conversion shaft drives the locking part Q1 to move in a fan shape and move out from inside the U-shaped locking block.

[0013] Preferably, the disassembly and assembly module further includes a hidden groove inside the worktable, and the conversion shaft is rotatably connected to the inside of the hidden groove. The inside of the hidden groove is equipped with a torsion spring for resetting the conversion shaft. When the moving car body is removed from the press worktable, the support bracket automatically loses its pressure on the locking block. Through the reset capability of the torsion spring, the locking part Q2 of the locking block is automatically inserted into the U-shaped locking block for re-locking.

[0014] The top of the conversion shaft extends to the outside of the worktable, allowing the operator to control the conversion shaft and enabling the worktable to be assembled and disassembled independently.

[0015] Preferably, the hydraulic cylinder is fixed to the back of the press worktable, and the telescopic end of the hydraulic cylinder extends into the interior of the press worktable. The telescopic end of the hydraulic cylinder is hinged to two inclined transmission frames, and one end of each transmission frame is hinged to a wedge block. The two wedge blocks are symmetrically arranged and are horizontally slidably connected to the interior of the press worktable. The bottom of both support frames extends to the bottom of the press worktable via guide rod assemblies, and the bottom of one of the guide rods in the guide rod assembly is set with an arc-shaped surface that contacts the top of the wedge block; Preferably, the top of the wedge block includes an inclined driving part W1 and a bearing part W2. When the bottom of the guide rod assembly contacts the inclined driving part W1, it can drive the guide rod assembly to move up and down in conjunction with the displacement of the wedge block. When the bottom of the guide rod assembly moves onto the bearing part W2, it forms a force support after the movable worktable is supported.

[0016] Compared with the prior art, the present invention provides a mold force load separation and support device for a press moving worktable, which has the following beneficial effects: This invention designs the mobile worktable as a separate structure of the mobile body and the worktable plate. The worktable plate carrying the mold can be separated from the mobile body through the double support frame of the support mechanism. This allows the mold bearing force and stamping impact force during press operation to be transferred from the mobile body to the support mechanism and finally to the press worktable base structure. This avoids the core moving components such as the rollers and guide rails of the mobile body from bearing high-intensity loads. It fundamentally solves the problem of easy wear and deformation of moving parts in traditional devices, greatly extends the service life of the moving mechanism, and reduces equipment maintenance costs.

[0017] This invention designs an integrated mechanical linkage mechanism of displacement-insertion-unlocking. When the moving vehicle moves along the guide rail to the preset working position on the press workbench via the drive system, the supporting end of the support frame can automatically insert into the gap between the moving vehicle and the workbench plate. At the same time, the force-bearing part of the disassembly module is squeezed to complete the automatic unlocking. The whole process does not require manual intervention, realizing a seamless connection between moving to the position and supporting preparation, greatly improving the automation level of the device, reducing manual operation steps, and improving production efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a rear view of the structure of the present invention; Figure 3 This is a cross-sectional view of the structure of the present invention; Figure 4is a schematic structural diagram of the moving workbench of the present invention; Figure 5 is a schematic structural diagram of the moving car body of the present invention; Figure 6 is a bottom structural view of the workbench plate of the present invention; Figure 7 is a partial sectional view of the workbench plate of the present invention.

[0019] In the figures: 10, press workbench; 20, moving workbench; 21, moving car body; 211, support frame; 212, positioning cylinder; 22, guide rail frame; 23, driving system; 24, workbench plate; 241, positioning shaft; 25, disassembly and assembly module; 251, U-shaped locking block; 252, conversion shaft; 253, clamping block; 254, torsion spring; 30, supporting mechanism; 31, supporting bracket; 32, hydraulic cylinder; 33, transmission frame; 34, wedge block; 35, guide rod group. Detailed Description of Embodiments

[0020] Hereinafter, the technical solutions in the embodiments of the present invention will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments.

[0021] Embodiment 1: refer to the attached Figures 1 to 7 , a die load separating and supporting device for a moving workbench of a press, comprising: a moving workbench 20 and a supporting mechanism 30 installed on a press workbench 10; the moving workbench 20 comprises a moving car body 21 and a workbench plate 24, the workbench plate 24 is detachably installed on the moving car body 21 through two sets of disassembly and assembly modules 25; this device is a die load separating and supporting structure matched with the moving workbench of the press, the core takes the press workbench 10 as a basic installation carrier, integrates two functional modules of the moving workbench 20 and the supporting mechanism 30, and realizes separated supporting and load unloading of the die bearing table plate. The moving workbench 20 adopts a split design, the moving car body 21 provides a moving foundation, the workbench plate 24 serves as a direct bearing surface for a die, the two realize detachable rigid connection through two sets of symmetrically arranged disassembly and assembly modules 25, ensuring the structural stability during the moving process.

[0022] the supporting mechanism 30 comprises two supporting brackets 31 and hydraulic cylinders 32 for driving the two supporting brackets 31 to move up and down, the two supporting brackets 31 are located on both sides of the moving workbench 20, and the supporting ends of the two supporting brackets 31 extend into the gap between the moving car body 21 and the workbench plate 24, so as to lift the workbench plate 24 through the upward movement of the two supporting brackets 31.

[0023] The support mechanism 30 uses a hydraulic cylinder 32 as its power source. The double support frames 31 are symmetrically arranged on both sides of the movable worktable 20. The support end extends precisely into the reserved space between the movable vehicle body 21 and the worktable plate 24. By using the linear lifting motion driven by hydraulics, the worktable plate 24 is vertically lifted, so that the worktable plate 24 is separated from the movable vehicle body 21. This completes the transfer of the mold load from the movable vehicle body 21 to the support mechanism 30, avoiding the movable mechanism from bearing the mold load force of the press.

[0024] It solves the core pain point of the original mobile worktable being subjected to high-intensity impacts under stamping conditions, which easily causes wear and deformation of components such as rollers / guide rails, affecting positioning accuracy.

[0025] See attached document Figure 1 and Figure 3 The movable worktable 20 also includes a guide rail frame 22 mounted on the press worktable 10, and a drive system 23 is installed on the movable worktable 20 for moving the movable carriage 21 along the guide rail frame 22. When the movable carriage 21 moves to the press worktable 10 along the guide rail frame 22 via the drive system 23, the supporting ends of the two support brackets 31 automatically insert into the gap between the movable carriage 21 and the worktable plate 24, and automatically release the locking of the disassembly module 25 between the movable carriage 21 and the worktable plate 24, so that the two support brackets 31 drive the worktable plate 24 to lift and support during the lifting movement.

[0026] The mobile worktable 20 is equipped with a translation drive unit consisting of a guide rail frame 22 and a drive system 23. The guide rail frame 22 is rigidly connected to the press worktable 10, providing a high-precision linear motion guide trajectory for the mobile car body 21, ensuring the coaxiality and positional accuracy of the mobile car body 21 during translation. The drive system 23 integrates power output, transmission execution and stroke control components to provide smooth translation force for the moving body 21, enabling its precise displacement between the working position of the press table 10 and the mold changing position.

[0027] The device is designed with a position linkage triggering mechanism. When the moving car body 21 moves precisely along the guide rail frame 22 to the preset working position of the press worktable 10 under the drive system 23, the mechanical position triggering structure causes the supporting end of the double support frame 31 to automatically complete the gap insertion action. At the same time, the unlocking program of the disassembly module 25 is triggered to release its rigid lock on the moving car body 21 and the worktable 24, providing structural conditions for the subsequent lifting of the worktable 24 by the support frame 31. This realizes the mechanical linkage of displacement-insertion-unlocking, improving the automation level and operation continuity of the device.

[0028] See attached document Figure 4 and Figure 5The top of the mobile vehicle body 21 is equipped with a support frame 211 for supporting the worktable 24 and several positioning cylinders 212. The bottom of the worktable 24 is fixedly connected with several positioning shafts 241 inserted into the positioning cylinders 212.

[0029] The top of the mobile vehicle body 21 is provided with a support and positioning assembly consisting of a support frame 211 and a positioning cylinder 212. The support frame 211 adopts a uniformly distributed rigid support structure to provide stable surface contact support for the worktable 24, disperse the load of the worktable 24 after bearing the mold, and avoid local stress concentration. A number of positioning cylinders 212 are arranged in a high-precision array, forming a positioning pair with the positioning shaft 241 fixed at the bottom of the worktable 24, which has a clearance fit between the shaft and the cylinder. The positioning shaft 241 can be accurately inserted into the positioning cylinder 212 to achieve precise horizontal positioning between the worktable 24 and the moving vehicle 21, ensuring the positional accuracy of the two after assembly, preventing the worktable 24 from shifting horizontally during movement or load-bearing, and providing a positional reference for the precise locking and unlocking of the disassembly and assembly module 25, thus ensuring the working reliability of the disassembly and assembly module 25.

[0030] See attached document Figure 5 and Figure 6 Two positioning protrusions A are fixedly connected to the top of each of the two support brackets 31, and positioning recesses B are provided on both sides of the bottom of the worktable 24 for the insertion of the positioning protrusions A, for positioning when the two support brackets 31 lift the worktable 24 upward.

[0031] The positioning protrusion A on the top of the support frame 31 is a rigid cylindrical / block structure, and the positioning recess B at the corresponding position on the bottom of the worktable 24 is a matching groove structure. The two adopt a clearance fit design.

[0032] When the support frame 31 lifts the worktable 24 upwards, the positioning protrusion A can be precisely inserted into the positioning recess B, realizing real-time positioning of the worktable 24 and the support frame 31 during the lifting process. This restricts the horizontal freedom of the worktable 24, prevents the worktable 24 from slipping or swaying during the lifting and support process, ensures the coaxiality of the lifting of the worktable 24, and at the same time, makes the lifting force of the support frame 31 evenly transmitted to the worktable 24, avoiding local stress that could cause deformation of the worktable 24, and improving the working stability of the support mechanism 30.

[0033] See attached document Figure 5 and Figure 6 The disassembly and assembly module 25 includes a U-shaped locking block 251 fixed to the top of the mobile vehicle body 21 and a conversion shaft 252 rotatably connected to the inside of the worktable 24. A locking block 253 is fixedly connected to the outer surface of the bottom of the conversion shaft 252. The disassembly and assembly module 25 is a mechanical rotary snap-locking structure. The core consists of a fixed U-shaped locking block 251 and a movable conversion shaft 252 and a locking block 253. The U-shaped locking block 251 is fixed to the top of the moving vehicle body 21 by rigid welding / bolt connection, which is the fixed base for snap-locking. The conversion shaft 252 is rotatably connected to the preset mounting hole inside the worktable plate 24 through a bearing assembly to achieve low-friction self-rotation. The locking block 253 and the conversion shaft 252 adopt a key connection / integrated molding design to ensure the synchronous rotation accuracy of the two.

[0034] One end of the locking block 253 is a locking part Q1, which is used to insert into the interior of the U-shaped locking block 251 to form a locking connection between the worktable 24 and the moving vehicle body 21. The locking block 253 has an asymmetrical structure, and its locking part Q1 is a latch structure that matches the inner cavity of the U-shaped locking block 251. When the locking part Q1 is inserted into the inner cavity of the U-shaped locking block 251, a rigid locking connection with surface contact is formed, thereby achieving axial locking between the worktable 24 and the moving vehicle body 21.

[0035] The other end of the locking block 253 is the force-bearing part Q2, which is located in the displacement trajectory of the support frame 31. When the moving car body 21 moves to the press worktable 10, the supporting end of the support frame 31 squeezes the force-bearing part Q2, causing the conversion shaft 252 to rotate. The conversion shaft 252 drives the locking part Q1 to move in a fan shape and move out from inside the U-shaped locking block 251.

[0036] The force-bearing part Q2 is a force-bearing and pressing surface, precisely positioned within the displacement trajectory range of the support frame 31. Utilizing the insertion action of the support frame 31 after the moving vehicle 21 is in place, the mechanical pressing of the force-bearing part Q2 by the supporting end of the support frame 31 applies a rotational torque to the conversion shaft 252, causing the conversion shaft 252 to rotate around its own axis. This, in turn, drives the locking block 253 to perform a fan-shaped rotational motion, causing the locking part Q1 to rotate out of the inner cavity of the U-shaped locking block 251, thus completing the automated unlocking of the disassembly and assembly module 25. The entire process utilizes the linkage of mechanical motion, requiring no manual intervention, thereby improving unlocking efficiency and accuracy.

[0037] See attached document Figure 2 and Figure 3 The hydraulic cylinder 32 is fixed to the back of the press worktable 10, and the telescopic end of the hydraulic cylinder 32 extends into the interior of the press worktable 10. The telescopic end of the hydraulic cylinder 32 is hinged to two inclined transmission frames 33, and one end of each transmission frame 33 is hinged to a wedge block 34. The two wedge blocks 34 are symmetrically arranged and are horizontally slidably connected to the interior of the press worktable 10. The bottom of each of the two support frames 31 extends to the bottom of the press worktable 10 through the guide rod assembly 35, and the bottom of one of the guide rods of the guide rod assembly 35 is set as an arc surface, which contacts the top of the wedge block 34.

[0038] The power transmission system of the support mechanism 30 adopts a composite transmission structure of hydraulic drive-crank slider-wedge surface transmission. The hydraulic cylinder 32 is fixed to the back of the press worktable 10 in a horizontal installation manner, and its telescopic end is inserted into the press worktable 10 as the power output end. The extension end of the hydraulic cylinder 32 is hinged to two inclined transmission frames 33. The other end of the transmission frame 33 is also hinged to the wedge block 34, forming a crank-slider transmission pair. This can convert the linear extension and retraction motion of the hydraulic cylinder 32 into horizontal reverse linear sliding of the two symmetrically arranged wedge blocks 34. The wedge blocks 34 are slidably connected to the slide groove inside the press worktable 10 through a linear guide pair to ensure the straightness and stability of its horizontal sliding.

[0039] The guide rod assembly 35 connected to the bottom of the double support bracket 31 is a multi-rod rigid connection structure. It is vertically inserted into the guide hole of the press worktable 10 to realize the vertical lifting and guiding of the support bracket 31. The bottom of the guide rod in the guide rod assembly 35 that contacts the wedge block 34 is machined into an arc surface. The arc surface and the top of the wedge block 34 are in line contact fit, which can effectively reduce the frictional resistance when the two move relative to each other and avoid jamming. At the same time, it can efficiently convert the horizontal thrust of the wedge block 34 into the vertical lifting force of the guide rod assembly 35, realizing the efficient transmission of hydraulic power from the horizontal direction to the vertical direction.

[0040] Example 2: The difference from Example 1 is that; See attached document Figures 5 to 7 The disassembly and assembly module 25 also includes a hidden groove inside the worktable 24, and the conversion shaft 252 is rotatably connected to the inside of the hidden groove. The inside of the hidden groove is equipped with a torsion spring 254 for resetting the conversion shaft 252. When the moving car body 21 is removed from the press worktable 10, the support bracket 31 automatically loses its pressure on the locking block 253. Through the reset ability of the torsion spring 254, the locking part Q2 of the locking block 253 is automatically inserted into the U-shaped locking block 251 for re-locking.

[0041] This embodiment, based on the disassembly and assembly module 25 of Embodiment 1, adds an elastic reset component and a manual operation end to improve the versatility and fault tolerance of the device. The hidden groove inside the worktable 24 provides a sealed installation space for the moving parts of the disassembly and assembly module 25, preventing dust, iron filings and other impurities from entering, and ensuring the rotational reliability of the conversion shaft 252; The torsion spring 254 is a cylindrical helical torsion spring, which is fitted on the outside of the conversion shaft 252. One end of it is fixed to the inner wall of the hidden groove, and the other end is rigidly connected to the conversion shaft 252. When the support bracket 31 presses the force-bearing part Q2 to make the conversion shaft 252 rotate, the torsion spring 254 undergoes elastic torsional deformation and stores elastic potential energy.

[0042] When the moving vehicle 21 moves out of the press workbench 10, the compression contact between the support frame 31 and the force-bearing part Q2 is released, the torsion spring 254 releases its elastic potential energy, generates a reverse reset torque, drives the conversion shaft 252 to rotate in the opposite direction, and drives the locking block 253 to rotate to the initial locking position, so that the locking part Q1 automatically and accurately inserts into the inner cavity of the U-shaped locking block 251, completing the automated reset locking of the disassembly and assembly module 25, realizing the elastic linkage of unlocking and reset, without manual operation.

[0043] The top end of the conversion shaft 252 extends to the outside of the worktable 24, allowing for operator control of the conversion shaft 252 and enabling the separate assembly and disassembly of the worktable 24. This extension of the top end of the conversion shaft 252 to the outside of the worktable 24 serves as a manual operation end, which can be equipped with tools such as wrenches to enable manual rotation control of the conversion shaft 252. In cases of automation system malfunction or when the worktable 24 needs to be disassembled and reassembled separately, manual operation allows for the unlocking and locking of the disassembly / reassembly module 25, improving the operational flexibility and emergency response capabilities of the device.

[0044] Example 3: The difference from Example 2 is that; See attached document Figure 3 The top of the wedge block 34 includes an inclined drive part W1 and a bearing part W2. When the bottom of the guide rod assembly 35 contacts the inclined drive part W1, it can drive the guide rod assembly 35 to move up and down in conjunction with the displacement of the wedge block 34. When the bottom of the guide rod assembly 35 moves onto the bearing part W2, it forms a force support after the movable worktable 20 is supported, which is used to support the press when it is working.

[0045] In this embodiment, the top structure of the wedge block 34 is optimized by functional partitioning and designed as an integrated structure of the tilting drive part W1 and the horizontal bearing part W2, realizing the functional separation of power transmission and static support, and effectively protecting the hydraulic drive components.

[0046] The inclined drive unit W1 has an inclined structure with an optimized inclination angle through mechanical calculations to ensure that the horizontal thrust of the hydraulic cylinder 32 can be efficiently converted into the vertical lifting force of the guide rod assembly 35. During the horizontal sliding of the wedge block 34, the arc-shaped surface at the bottom of the guide rod assembly 35 slides along the inclined surface of the inclined drive unit W1, realizing the vertical lifting and lowering movement of the support frame 31 and completing the lifting and separation of the worktable 24.

[0047] The bearing part W2 is a horizontal support surface that matches the arc-shaped surface at the bottom of the guide rod assembly 35. When the support frame 31 lifts the worktable 24 to the upper limit, the bottom of the guide rod assembly 35 moves exactly above the bearing part W2. At this time, the wedge block 34 stops sliding, and the bottom of the guide rod assembly 35 forms a rigid support with surface contact with the bearing part W2. The mold pressure and the working pressure of the press carried by the worktable 24 are transmitted to the basic structure of the press worktable 10 through the guide rod assembly 35 and the wedge block 34, realizing load unloading. This prevents the hydraulic cylinder 32, transmission frame 33 and other power transmission components from bearing working pressure, avoiding damage such as hydraulic component leakage and transmission component deformation caused by high pressure load, and greatly improving the service life of the hydraulic drive system and the structural reliability of the device.

[0048] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A mold load separation and support device for a press moving worktable, characterized in that, include: The movable worktable (20) and the support mechanism (30) are installed on the press worktable (10). The mobile workbench (20) includes a mobile vehicle body (21) and a workbench plate (24). The workbench plate (24) is detachably installed on the mobile vehicle body (21) through two sets of disassembly and assembly modules (25). The supporting mechanism (30) includes two support frames (31) and a hydraulic cylinder (32) for moving the two support frames (31) up and down. The two support frames (31) are located on both sides of the movable worktable (20), and the supporting ends of the two support frames (31) extend into the gap between the movable vehicle body (21) and the worktable (24) to lift the worktable (24) by moving the two support frames (31) upward.

2. The mold force load separation and support device for the press moving worktable according to claim 1, characterized in that, The mobile worktable (20) also includes a guide rail frame (22) mounted on the press worktable (10), and the mobile worktable (20) is equipped with a drive system (23) for moving the mobile vehicle body (21) along the guide rail frame (22).

3. When the mobile vehicle (21) moves along the track of the guide rail (22) to the press workbench (10) through the drive system (23), the supporting ends of the two support brackets (31) automatically insert into the gap between the mobile vehicle (21) and the workbench (24), and automatically make the disassembly module (25) lose the lock between the mobile vehicle (21) and the workbench (24), so that the two support brackets (31) drive the workbench (24) to lift and support during the lifting movement.

4. The mold force load separation and support device for the press moving worktable according to claim 1, characterized in that, The top of the mobile vehicle body (21) is equipped with a support frame (211) for supporting the worktable (24) and several positioning cylinders (212). The bottom of the worktable (24) is fixedly connected with several positioning shafts (241) inserted into the positioning cylinders (212).

5. The mold force load separation and support device for the press moving worktable according to claim 1, characterized in that, Two positioning protrusions A are fixedly connected to the top of each of the two support brackets (31), and positioning recesses B for the insertion of positioning protrusions A are provided on both sides of the bottom of the worktable (24) for positioning when the two support brackets (31) lift the worktable (24) upward.

6. The mold force load separation and support device for the press moving worktable according to claim 1, characterized in that, The disassembly and assembly module (25) includes a U-shaped locking block (251) fixed to the top of the mobile vehicle body (21) and a conversion shaft (252) rotatably connected to the inside of the worktable (24). A locking block (253) is fixedly connected to the outer surface of the bottom of the conversion shaft (252). One end of the card block (253) is a card-connecting part Q1, which is used to insert into the interior of the U-shaped lock block (251) to form a card-connecting connection between the workbench (24) and the moving vehicle body (21); The other end of the locking block (253) is the force-bearing part Q2, which is located in the displacement trajectory of the support frame (31). When the moving vehicle (21) moves to the press worktable (10), the supporting end of the support frame (31) squeezes the force-bearing part Q2, causing the conversion shaft (252) to rotate. The conversion shaft (252) drives the locking part Q1 to move in a fan shape and move out from inside the U-shaped locking block (251).

7. The mold force load separation and support device for the press moving worktable according to claim 5, characterized in that, The disassembly and assembly module (25) also includes a hidden groove inside the worktable (24), and the conversion shaft (252) is rotatably connected to the inside of the hidden groove. The inside of the hidden groove is equipped with a torsion spring (254) for resetting the conversion shaft (252). When the moving car body (21) is removed from the press worktable (10), the support frame (31) automatically loses its pressure on the locking block (253). Through the reset ability of the torsion spring (254), the locking part Q2 of the locking block (253) is automatically inserted into the U-shaped locking block (251) for re-locking.

8. The top end of the conversion shaft (252) extends to the outside of the worktable (24) for the operator to control the conversion shaft (252) and to enable the worktable (24) to be disassembled and reassembled separately.

9. The mold force load separation and support device for the press moving worktable according to claim 1, characterized in that, The hydraulic cylinder (32) is fixed to the back of the press workbench (10), and the telescopic end of the hydraulic cylinder (32) extends into the interior of the press workbench (10). The telescopic end of the hydraulic cylinder (32) is hinged to two inclined transmission frames (33), and one end of each of the two transmission frames (33) is hinged to a wedge block (34). The two wedge blocks (34) are arranged symmetrically and are horizontally slidably connected to the interior of the press workbench (10). The bottom of both support brackets (31) extends to the bottom of the press worktable (10) via guide rod assembly (35), and the bottom of one of the guide rods of the guide rod assembly (35) is set as an arc surface, which contacts the top of the wedge block (34).

10. The mold force load separation and support device for the press moving worktable according to claim 7, characterized in that, The top of the wedge block (34) includes an inclined driving part W1 and a bearing part W2. When the bottom of the guide rod assembly (35) contacts the inclined driving part W1, it can drive the guide rod assembly (35) to move up and down in conjunction with the displacement of the wedge block (34). When the bottom of the guide rod assembly (35) moves to the bearing part W2, it forms a force support after the movable worktable (20) is supported.