Quick-remodeling automobile bending die modular combination structure

By combining the modular replacement mechanism and the pressure sensor, the bending die can be quickly replaced and stably positioned, solving the problem of complex operation of existing modular bending dies and improving production efficiency and clamping reliability.

CN224253922UActive Publication Date: 2026-05-19ZHONGYUAN IND EQUIPMENT (CHANGSHU) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHONGYUAN IND EQUIPMENT (CHANGSHU) CO LTD
Filing Date
2025-06-13
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

The replacement process for existing modular bending dies is complex, time-consuming, and labor-intensive, affecting production cycle time and work efficiency.

Method used

A modular replacement mechanism is adopted, which uses hydraulic cylinders and high-pressure pumps to achieve automatic clamping and positioning of bending molds. Combined with pressure sensors to monitor the air pressure status in real time, it ensures clamping reliability and avoids loosening.

Benefits of technology

It enables rapid replacement and stable positioning of bending dies, improves installation efficiency, and ensures the clamping reliability and production efficiency of dies during use.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a quick-remodeling automobile bending die modular combination structure, which belongs to the technical field of automobile part processing and comprises a base and a support plate, a bending die is arranged between the base and the support plate, and a hydraulic cylinder is fixedly mounted at the top of the support plate; the module replacing mechanism is used for quickly carrying out modular replacement on the bending mold and is arranged on the outer side of the bending mold; wherein the module replacement mechanism comprises a protective shell fixedly installed between the base and the supporting plate, a replacement assembly is arranged on one side of the base, and a detection assembly is arranged between the replacement assembly and the base. By means of the mode, during use, the replacement assembly automatically presses the bending die through air pressure, stable positioning is achieved, additional fastening operation is omitted, and the installation efficiency is improved; the detection assembly monitors the air pressure state in real time and can give an alarm for feedback when abnormal conditions occur, it is ensured that mold clamping is reliable, and the loosening problem caused by insufficient air pressure is prevented.
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Description

Technical Field

[0001] This utility model relates to the field of automotive parts processing technology, specifically to a modular combination structure for a quick-change automotive bending mold. Background Technology

[0002] In the forming and processing of automotive parts, bending dies are widely used for the precision bending and forming of various sheet metal parts, skeleton parts, reinforcing ribs, and other structural components. Existing bending dies mostly adopt an integral structure, adapting to the shape of parts with specific specifications. Once the part model changes, it often requires a complete replacement of the entire die.

[0003] To improve the versatility and changeover efficiency of molds, some existing technologies have introduced modular design, which involves disassembling bending molds into replaceable upper and lower mold components. However, in actual operation, the replacement steps of existing modular bending molds are still complicated. It usually requires the disassembly and reinstallation of multiple mechanical connection parts in sequence, and the upper and lower molds need to be aligned and locked separately. The operation is time-consuming and labor-intensive, which seriously affects the production cycle and work efficiency.

[0004] Based on this, this utility model designs a modular combination structure for quick-change automotive bending modules to solve the above problems. Utility Model Content

[0005] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a modular combination structure for quick-change automotive bending modules.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A modular assembly structure for a quick-change automotive bending mold includes a base and a support plate, with a bending mold disposed between the base and the support plate. A hydraulic cylinder is fixedly mounted on the top of the support plate. A module replacement mechanism is provided on the outside of the bending mold for quick modular replacement. The module replacement mechanism includes a protective shell fixedly installed between the base and the support plate, a replacement component is disposed on one side of the base, and a detection component is disposed between the replacement component and the base.

[0008] Furthermore, the replacement component includes a support frame slidably mounted on the surface of the base, a placement groove being provided at the top of the support frame, the bending mold being located inside the placement groove, a guide tube being fixedly installed inside the base, a high-pressure pump being fixedly installed on one side of the guide tube, the guide tube being located at the bottom of the support frame, the high-pressure pump being fixedly installed on the outside of the base, and a cover plate being hinged to the outside of the protective shell.

[0009] Furthermore, the guide tube is configured in a ring shape, and multiple injection ports are fixedly installed on the surface of the guide tube, with the multiple injection ports arranged around the surface of the guide tube.

[0010] Furthermore, the inner edges of the placement groove are all set as bevels, and multiple guide tubes are fixedly installed inside the placement groove. The bottom shape of the bending mold is adapted to the placement groove.

[0011] Furthermore, a positioning frame is fixedly installed at the bottom of the support plate, and the top of the bending mold abuts against the inside of the positioning frame.

[0012] Furthermore, the surface of the positioning frame is provided with a pressing port, and the output end of the hydraulic cylinder extends to one side of the pressing port and is fixedly connected to a pressure plate.

[0013] Furthermore, the detection assembly includes a pressure sensor fixedly mounted on the outside of the base, with the detection end of the pressure sensor extending into the inside of the base and located on one side of the guide tube.

[0014] Furthermore, a pressure gauge is fixedly mounted on the outside of the pressure sensor, and the pressure gauge is vertically arranged on the surface of the pressure sensor. Beneficial effects

[0015] During use, the replacement component automatically presses the bending mold with air pressure, achieving stable positioning and eliminating the need for additional tightening operations, thus improving installation efficiency; the detection component monitors the air pressure status in real time and can provide alarm feedback when abnormalities occur, ensuring reliable mold clamping and preventing loosening problems caused by insufficient air pressure.

[0016] In actual use, when the high-pressure pump starts to inject gas into the guide tube, the pressure sensor can simultaneously record the trend of gas pressure change in the guide tube, and send a clamping completion signal after reaching the set pressure threshold, controlling the support frame to stop rising; if the gas pressure inside the guide tube drops below the safety threshold, the pressure sensor can immediately output an abnormal signal. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a three-dimensional view of the main structure of a modular combination structure for a quick-change automotive bending module according to the present invention.

[0019] Figure 2This is a schematic diagram of the module replacement mechanism of a modular assembly for a quick-change automotive bending mold according to the present invention.

[0020] Figure 3 This is a schematic diagram of the replacement component structure of a modular combination of quick-change automotive bending molds according to the present invention.

[0021] Figure 4 This is a schematic diagram of the detection component structure of a modular combination of quick-change automotive bending molds according to the present invention.

[0022] The labels in the diagram represent:

[0023] 100. Base; 110. Support plate; 120. Hydraulic cylinder; 130. Cover plate; 140. Pressure plate; 200. Bending mold; 300. Module replacement mechanism; 310. Protective shell; 320. Replacement component; 321. Support frame; 322. Placement slot; 323. Guide tube; 324. Injection port; 325. High-pressure pump; 326. Positioning frame; 327. Pressurization port; 330. Detection component; 331. Pressure sensor; 332. Pressure gauge. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0025] The present invention will be further described below with reference to the embodiments.

[0026] In some embodiments, please refer to the appendix to the instruction manual. Figure 1-4 A modular assembly structure for a quick-change automotive bending mold includes a base 100 and a support plate 110. A bending mold 200 is disposed between the base 100 and the support plate 110, and a hydraulic cylinder 120 is fixedly installed on the top of the support plate 110. A module replacement mechanism 300 is disposed on the outside of the bending mold 200 for quick modular replacement. The module replacement mechanism 300 includes a protective shell 310 fixedly installed between the base 100 and the support plate 110, a replacement component 320 is disposed on one side of the base 100, and a detection component 330 is disposed between the replacement component 320 and the base 100.

[0027] In this embodiment of the utility model, during use, the replacement component 320 automatically clamps and positions the bending mold 200 using air pressure, so that the bending mold 200 remains stably clamped during installation or operation without the need for additional tightening operations, thus improving installation efficiency. The detection component 330 is used to monitor the air pressure status of the replacement component 320 in real time. When the clamping force is insufficient or there is pressure leakage, it can issue an alarm or signal feedback in time to ensure the clamping stability of the bending mold 200 during use and avoid the mold from loosening due to insufficient air pressure.

[0028] It should be noted that existing automotive parts forming equipment typically includes main components such as a base 100, a slider, a hydraulic cylinder 120, and a control system. The bending die 200, as the core forming structure, is fixedly installed between the base 100 and the slider. Without altering the forming motion path of the bending die 200 or the driving method of the hydraulic cylinder 120, a module replacement mechanism 300 is installed on the outside of the bending die 200. The module replacement mechanism 300 includes a protective shell 310, a replacement component 320, and a detection component 330. The replacement component 320 is connected to the base 100 via air... The pressing method enables automatic pressing and releasing of the bending die 200, effectively replacing the traditional mechanical fastening structure. The detection component 330 is set between the replacement component 320 and the base 100 to monitor the air pressure output by the replacement component 320 in real time, ensuring the reliability and safety of the pressing process. Since both the replacement component 320 and the detection component 330 are set in the outer area of ​​the die and do not participate in the reciprocating drive process of the hydraulic cylinder 120, nor do they interfere with the force and closing path of the bending die 200, they will not affect the normal operation, positioning accuracy and forming effect of the overall structure of the bending machine.

[0029] It should be noted that the bending die 200 includes an upper die and a lower die. The upper die is driven by a hydraulic cylinder 120 to achieve reciprocating motion in the vertical direction. The lower die is fixedly installed on the upper surface of the base 100 and is used to provide support and positioning for the workpiece to be processed. In the structure of the bending die 200 adopted in this utility model, multiple elastic telescopic rods are also fixedly installed between the upper die and the lower die. The multiple elastic telescopic rods are symmetrically arranged along the edge of the die or the non-forming area, and have a certain buffer compression stroke. They are used to provide flexible transition support in the initial stage of the upper die pressing down and contacting the workpiece, and to generate reverse support force during the die closing process.

[0030] In some embodiments, such as Figure 2 and Figure 3As shown, in a preferred embodiment of the present invention, the replacement component 320 includes a support frame 321 slidably mounted on the surface of the base 100. The top of the support frame 321 is provided with a placement groove 322. The bending mold 200 is located inside the placement groove 322. A guide tube 323 is fixedly installed inside the base 100. A high-pressure pump 325 is fixedly installed on one side of the guide tube 323. The guide tube 323 is located at the bottom of the support frame 321. The high-pressure pump 325 is fixedly installed on the outside of the base 100. A cover plate 130 is hinged to the outside of the protective shell 310.

[0031] In this embodiment of the utility model, the high-pressure pump 325 is used to output high-pressure gas under the clamping state, so as to push the support frame 321 upward, thereby pressing the bending mold 200 between the base 100 and the support plate 110 to achieve stable clamping of the mold. When it is necessary to replace the bending mold 200, the operator can first open the cover plate 130, and then control the high-pressure pump 325 to perform a depressurization operation, so that the air pressure in the guide tube 323 is released. After the support frame 321 loses the upward support force, it automatically moves down, releasing the clamping state between the bending mold 200 and the base 100 and the support plate 110. At this time, the bending mold 200 can be slid out to complete the quick replacement operation.

[0032] The guide tube 323 is configured in a ring shape, and multiple injection ports 324 are fixedly installed on the surface of the guide tube 323, with the multiple injection ports 324 arranged around the surface of the guide tube 323.

[0033] In this embodiment of the invention, when the high-pressure pump 325 is started, compressed gas is rapidly and evenly injected into the guide tube 323 through the injection port 324 to form an annular air pressure zone, which effectively pushes the support frame 321 to move up in the vertical direction, thereby pressing the bending mold 200 between the base 100 and the support plate 110, thereby improving the air pressure transmission efficiency and support response speed.

[0034] The inner edges of the placement groove 322 are all set as bevels, and multiple guide tubes 323 are fixedly installed inside the placement groove 322. The bottom shape of the bending mold 200 is adapted to the placement groove 322.

[0035] In this embodiment of the utility model, the inner edge of the placement groove 322 is set as a beveled structure to guide the bending mold 200 to automatically align and limit its fit during placement. Multiple guide tubes 323 can also guide the bending mold 200 when it is placed, forming a tight nesting relationship.

[0036] A positioning frame 326 is fixedly installed at the bottom of the support plate 110, and the top of the bending mold 200 is pressed against the inside of the positioning frame 326.

[0037] In this embodiment of the utility model, the positioning frame 326 is a frame structure with an opening facing downwards. Its internal space is used to accommodate the top edge of the bending mold 200, so that after the bending mold 200 is installed on the support frame 321 and driven to the working state by the high-pressure pump 325, its top edge can accurately abut against the internal wall of the positioning frame 326, thereby achieving upper limit positioning.

[0038] The surface of the positioning frame 326 is provided with a pressing port 327, and the output end of the hydraulic cylinder 120 extends to one side of the pressing port 327 and is fixedly connected to a pressure plate 140.

[0039] In this embodiment of the utility model, during use, after the bending mold 200 is raised from the bottom to the limiting area of ​​the positioning frame 326 via the support frame 321, when the bending mold 200 needs to be used, the hydraulic cylinder 120 drives the pressure plate 140 to move down, so that the mold on the bending mold 200 can be moved down for use.

[0040] In some embodiments, such as Figure 2 and Figure 4 As shown, in a preferred embodiment of the present invention, the detection component 330 includes a pressure sensor 331 fixedly installed on the outside of the base 100. The detection end of the pressure sensor 331 extends into the base 100 and is located on one side of the guide tube 323.

[0041] In this embodiment of the utility model, during actual use, when the high-pressure pump 325 starts injecting gas into the guide tube 323, the pressure sensor 331 can synchronously record the changing trend of the air pressure inside the guide tube 323, and send a clamping completion signal after reaching the set pressure threshold, controlling the support frame 321 to stop rising; if the air pressure inside the guide tube 323 drops below the safety threshold, the pressure sensor 331 can immediately output an abnormal signal.

[0042] A pressure gauge 332 is fixedly mounted on the outside of the pressure sensor 331, and the pressure gauge 332 is vertically arranged on the surface of the pressure sensor 331.

[0043] In this embodiment of the utility model, the pressure sensor 331 will detect the air pressure change inside the guide tube 323 in real time, and the air pressure gauge 332 will display the current air pressure value simultaneously, so that the on-site personnel can observe whether the set clamping range has been reached, ensuring that the bending mold 200 obtains a stable and reliable clamping force. If the air pressure drops or fluctuates abnormally during operation, the air pressure gauge 332 can provide an immediate visual prompt.

[0044] In this embodiment of the invention, during actual use, when it is necessary to install or replace the bending die 200, compressed gas is first injected into the guide pipe 323 through the injection port 324 by controlling the high-pressure pump 325. The air pressure causes the support frame 321 to rise vertically, thereby pressing the bending die 200 placed in the placement slot 322 against the positioning frame 326 below the support plate 110, achieving a clamping fit between the lower support and the upper limit. During the working phase, the hydraulic cylinder 120 drives the upper die to reciprocate downward according to the control system command, realizing the material... In the bending forming process, multiple elastic telescopic rods are set between the upper and lower molds, which can provide flexible buffering in the initial contact stage and enhance the rebound force in the closing stage, thereby improving the forming quality and structural stability. After the processing of the current batch of parts is completed, if it is necessary to replace the bending mold 200, the high-pressure pump 325 can be turned off and the air release operation can be performed through the control system. The support frame 321 will then move down, and the mold and the positioning frame 326 will be released from the clamping state. At this time, the module replacement area can be opened through the cover plate 130, and the bending mold 200 can be slid out of the support frame 321 directly to complete the quick replacement.

[0045] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A modular assembly structure for a quick-change automotive bending module, comprising a base (100) and a support plate (110), characterized in that: A bending mold (200) is provided between the base (100) and the support plate (110), and a hydraulic cylinder (120) is fixedly installed on the top of the support plate (110). A module replacement mechanism (300) for quickly replacing the bending die (200) in a modular fashion is provided on the outside of the bending die (200); The module replacement mechanism (300) includes a protective shell (310) fixedly installed between the base (100) and the support plate (110). A replacement component (320) is provided on one side of the base (100), and a detection component (330) is provided between the replacement component (320) and the base (100).

2. The modular assembly structure for quick-change automotive bending modules according to claim 1, characterized in that, The replacement component (320) includes a support frame (321) slidably mounted on the surface of the base (100). The top of the support frame (321) is provided with a placement groove (322). The bending mold (200) is located inside the placement groove (322). A guide tube (323) is fixedly installed inside the base (100). A high-pressure pump (325) is fixedly installed on one side of the guide tube (323). The guide tube (323) is located at the bottom of the support frame (321). The high-pressure pump (325) is fixedly installed on the outside of the base (100). A cover plate (130) is hinged to the outside of the protective shell (310).

3. The modular assembly structure for quick-change automotive bending modules according to claim 2, characterized in that, The guide tube (323) is configured in a ring shape, and a plurality of injection ports (324) are fixedly installed on the surface of the guide tube (323), and the plurality of injection ports (324) are arranged around the surface of the guide tube (323).

4. The modular assembly structure for quick-change automotive bending modules according to claim 2, characterized in that, The inner edge of the placement groove (322) is set as a bevel, and multiple guide tubes (323) are fixedly installed inside the placement groove (322). The bottom shape of the bending mold (200) is adapted to the placement groove (322).

5. The modular assembly structure for rapid changeover of automotive bending modules according to claim 1, characterized in that, A positioning frame (326) is fixedly installed at the bottom of the support plate (110), and the top of the bending mold (200) abuts against the inside of the positioning frame (326).

6. The modular assembly structure for quick-change automotive bending modules according to claim 5, characterized in that, The surface of the positioning frame (326) is provided with a pressing port (327), and the output end of the hydraulic cylinder (120) extends to one side of the pressing port (327) and is fixedly connected to a pressure plate (140).

7. The modular assembly structure for quick-change automotive bending modules according to claim 4, characterized in that, The detection assembly (330) includes a pressure sensor (331) fixedly mounted on the outside of the base (100), with the detection end of the pressure sensor (331) extending into the base (100) and located on one side of the guide tube (323).

8. The modular assembly structure for quick-change automotive bending modules according to claim 7, characterized in that, A pressure gauge (332) is fixedly installed on the outside of the pressure sensor (331), and the pressure gauge (332) is vertically arranged on the surface of the pressure sensor (331).