Positioning and demolding mechanism for hydraulic press

CN224712880UActive Publication Date: 2026-09-04HUIZHOU TIANCHENG METAL STRUCTURE CO LTD
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Patent Information

Application Number
CN202522011975.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-18
Publication Date
2026-09-04
Estimated Expiration
2035-09-18

AI Technical Summary

Technical Problem

[0003]但是现有的装置在使用过程中,由于缺乏可靠的定位机制,导致在冲压作业时难以对工件进行固定,以此将导致冲压件在受力过程中容易出现位置偏移,进而影响到冲压产品的成型质量以及后续加工的适配性

Benefits of technology

1、通过设置加工部,使用时,将待加工板材置于支撑板上,启动液压推杆一后,其通过连接板带动齿条沿滑轨向内移动,借助齿条与齿轮的啮合传动,两个齿条会分别带动各自的定位夹具相互靠近,实现对支撑板顶部板材的居中定位,从而减少板材冲压偏移、提高加工精度;

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a positioning demoulding mechanism for hydraulic press, relate to hydraulic press technical field, the utility model discloses a supporting plate still includes: processing part, processing part sets up at the bottom of supporting plate, configuration part, configuration part sets up at the top of supporting plate, processing part includes positioning assembly, positioning assembly installs at the bottom of supporting plate, drive assembly, drive assembly installs on positioning assembly and demoulding assembly, demoulding assembly sets up at the bottom of supporting plate, positioning assembly includes setting up the board material at the top of supporting plate, and the bottom fixed connection of supporting plate has two slide rails. The utility model discloses setting up processing part, owing to lack reliable positioning mechanism, lead to when the stamping operation, it is difficult to fix workpiece, to this will lead to the stamping piece to be easy to appear position deviation in the stress process, and then influence the forming quality of stamping product and the adaptability of subsequent processing problem.
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Description

Technical Field

[0001] This utility model belongs to the field of hydraulic press technology, and specifically relates to a positioning and demolding mechanism for a hydraulic press. Background Technology

[0002] A positioning and demolding mechanism for a hydraulic press is a specialized device installed on a hydraulic press. Through a precise mechanical positioning structure and a power drive component, it smoothly and accurately ejects the formed workpiece from the mold cavity or core according to a preset position and trajectory after the pressing process. During the use of a hydraulic press, the workpiece often adheres tightly to the mold after pressing due to the shape constraints of the mold cavity, the friction between the material and the mold, or residual forming pressure. If demolding is done manually or by simple external force, it can easily lead to workpiece deformation, surface damage, or even mold collision damage due to positioning deviation. The positioning and demolding mechanism can ensure the consistency of the demolding direction and position through precise positioning, avoid uneven force on the workpiece, improve demolding efficiency and automation, and ensure production continuity and product quality stability.

[0003] However, existing devices lack a reliable positioning mechanism, making it difficult to fix the workpiece during stamping operations. This can cause the stamped parts to shift position under stress, affecting the forming quality of the stamped products and their adaptability to subsequent processing. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, this utility model provides a positioning and demolding mechanism for a hydraulic press to solve the problems in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A positioning and demolding mechanism for a hydraulic press includes a support plate and further includes: a processing section disposed at the bottom of the support plate; a configuration section disposed at the top of the support plate; the processing section includes a positioning component mounted at the bottom of the support plate; a driving component mounted on the positioning component; and a demolding component disposed at the bottom of the support plate; the positioning component includes a plate disposed at the top of the support plate; two slide rails are fixedly connected to the bottom of the support plate, and racks are slidably connected to both slide rails; a gear is rotatably connected to the bottom of the support plate, and the gear meshes with the two racks; two grooves are formed at the top of the support plate; positioning clamps are fixedly connected to the top of both racks, and both positioning clamps are in contact with the plate; wherein, both positioning clamps extend outside the two grooves and are slidably connected to the two grooves.

[0006] Preferably, the configuration unit includes a buffer assembly disposed on top of the support plate; and a feeding assembly mounted on top of the support plate; wherein the feeding assembly is located to the right of the buffer assembly.

[0007] Preferably, the drive assembly includes a fixed block fixedly connected to the bottom of the support plate, a hydraulic push rod is sleeved on the fixed block, and a connecting plate is fixedly connected to the corresponding rack. The output end of the hydraulic push rod is fixedly connected to the connecting plate. The fixed block is located on the rack at the rear. The hydraulic push rod drives the rack to move linearly through the connecting plate. The fixed block provides stable support, and the hydraulic drive provides strong power, making the rack move smoothly and controllably, accurately realizing the meshing transmission with the gear, thereby driving the rotating disk to rotate, improving the stability and reliability of the equipment operation.

[0008] Preferably, the demolding assembly includes several legs fixedly connected to the bottom of a support plate, a base plate fixedly connected to the bottom end of each leg, a hydraulic push rod II fixedly connected to the top of the base plate, a lower mold fixedly connected to the bottom of the support plate, a lifting groove formed on the inner wall of the bottom of the lower mold, a lifting plate slidably connected within the lifting groove, the output end of the hydraulic push rod II fixedly connected to the lifting plate, and a balancing component provided on the lifting plate. The lower mold communicates with the support plate, and the lifting plate is driven by the hydraulic push rod II to rise smoothly within the lifting groove, ejecting the molded product from the lower mold and achieving automatic demolding. The balancing component ensures uniform force distribution during the lifting process, and the legs and base plate provide stable support, improving demolding efficiency and stability while reducing manual labor intensity.

[0009] Preferably, the buffer assembly includes two slide rod groups fixedly connected to the top of the support plate. A top plate is fixedly connected to the top of the two slide rod groups. A hydraulic push rod three is fixedly connected to the top of the top plate. A sliding plate is slidably connected to the outer wall of the two slide rod groups. The output end of the hydraulic push rod three is fixedly connected to the sliding plate. An upper mold is fixedly connected to the bottom of the sliding plate. A buffer ring is sleeved on the outer wall of the upper mold. A worktable is fixedly connected to the top of the support plate. A buffer component is provided on the worktable. The output end of the hydraulic push rod three extends to the outside of the top plate and is slidably connected to the top plate. The hydraulic push rod three drives the sliding plate to rise and fall smoothly along the slide rod group, driving the upper mold to close precisely. The buffer ring and buffer component can alleviate the impact force during mold closing, reduce mold wear, improve mold closing stability and safety, and ensure the quality of the molded product. At the same time, the slide rod group provides guidance to ensure accurate and reliable operation.

[0010] Preferably, the unloading assembly includes a strip plate fixedly connected to the top of the workbench. A hydraulic push rod four is fixedly connected to the right side of the strip plate. The output end of the hydraulic push rod four extends out of the strip plate and is slidably connected to the strip plate. A push block is fixedly connected to the output end of the hydraulic push rod four. Two balance rods two are slidably connected to the strip plate. The left ends of the two balance rods two are fixedly connected to the push block. A unloading slide plate is fixedly connected to the left side of the workbench. The push block is located on the right side of the unloading slide plate. The hydraulic push rod four drives the push block to push the formed product to the unloading slide plate to achieve automatic unloading. The balance rods two ensure that the push block moves smoothly and avoids deviation. The unloading slide plate guides the product to slide down in an orderly manner, reducing manual intervention, improving unloading efficiency and safety, and enhancing the automation level of the equipment.

[0011] Preferably, the balancing component includes two balance rods fixedly connected to the bottom of the lifting plate. Both balance rods extend to the outside of the lower mold and are slidably connected to the lower mold. The two balance rods move synchronously with the lifting plate, providing stable guidance and support for the lifting plate, avoiding tilting and deviation caused by uneven force during the lifting process, ensuring smooth and accurate lifting action, and improving the operational stability and demolding effect of the demolding component.

[0012] Preferably, the buffer includes a plurality of dampers fixedly connected to the top of the workbench, a buffer plate fixedly connected to the top of the plurality of dampers, the buffer plate being adapted to the buffer ring, and springs wound around the outer walls of the plurality of dampers; wherein, one end of the plurality of springs is fixedly connected to the workbench, and the other end of the plurality of springs is fixedly connected to the buffer plate.

[0013] Compared with existing technologies, the beneficial effects of this utility model are as follows: 1. By setting up a processing section, when in use, the sheet material to be processed is placed on the support plate. After starting the hydraulic push rod, it drives the rack to move inward along the slide rail through the connecting plate. With the help of the meshing transmission of the rack and gear, the two racks will drive their respective positioning fixtures to move closer to each other, thereby achieving the centering positioning of the sheet material on the top of the support plate, thereby reducing the stamping offset of the sheet material and improving the processing accuracy. 2. After the plate is positioned by setting the configuration section, start the hydraulic push rod three. With the help of two sliding rod groups, the slide plate drives the upper mold through the worktable and cooperates with the lower mold at the bottom of the support plate to punch the plate. During the punching, the buffer ring driven by the upper mold contacts the buffer plate at the top of the worktable. The punching force is transmitted through the worktable to multiple dampers and springs and compresses them, effectively buffering the impact force, reducing equipment vibration and noise, and extending the service life of the equipment. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2This is a partial cross-sectional view of the processing part of this utility model; Figure 3 This is a partial cross-sectional view of the configuration part of this utility model; Figure 4 This utility model Figure 2 A magnified structural diagram of A in the middle; Figure 5 This utility model Figure 3 A magnified structural diagram of B in the diagram.

[0015] In the attached diagram: 1. Support plate; 2. Machining section; 21. Positioning assembly; 211. Sheet metal; 212. Slide rail; 213. Rack; 214. Gear; 215. Slide groove; 216. Positioning fixture; 22. Drive assembly; 221. Fixing block; 222. Hydraulic push rod one; 223. Connecting plate; 23. Demolding assembly; 231. Support leg; 232. Base plate; 233. Hydraulic push rod two; 234. Lower mold; 235. Lifting groove; 236. Top 237. Lifting plate; 34. Balance bar one; 35. Configuration section; 36. Buffer assembly; 37. Slide bar assembly; 38. Top plate; 39. Hydraulic push rod three; 30. Slide plate; 312. Upper mold; 313. Buffer ring; 314. Workbench; 315. Damper; 316. Buffer plate; 317. Spring; 328. Unloading assembly; 329. Strip plate; 320. Hydraulic push rod four; 321. Push block; 322. Balance bar two; 323. Unloading slide plate. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] like Figures 1 to 5 As shown, the present invention provides a positioning and demolding mechanism for a hydraulic press, including a support plate 1, and further including: a processing part 2, which is disposed at the bottom of the support plate 1; and a configuration part 3, which is disposed at the top of the support plate 1.

[0018] The processing unit 2 includes a positioning assembly 21, which is mounted on the bottom of the support plate 1; a drive assembly 22, which is mounted on the positioning assembly 21; and a demolding assembly 23, which is disposed on the bottom of the support plate 1. The positioning assembly 21 includes a plate 211 disposed on the top of the support plate 1. Two slide rails 212 are fixedly connected to the bottom of the support plate 1. A rack 213 is slidably connected to each of the two slide rails 212. A gear 214 is rotatably connected to the bottom of the support plate 1. The gear 214 meshes with the two racks 213. Two grooves 215 are formed on the top of the support plate 1. Each rack 213 has a positioning clamp 216 fixedly connected to its top, and both positioning clamps 216 are in contact with the plate 211. Both positioning clamps 216 extend outside and are slidably connected to the two slide grooves 215. The drive assembly 22 includes a fixing block 221 fixedly connected to the bottom of the support plate 1. A hydraulic push rod 222 is fitted onto the fixing block 221. A connecting plate 223 is fixedly connected to the corresponding rack 213, and the output end of the hydraulic push rod 222 is fixedly connected to the connecting plate 223. The fixing block 221 is located on the rear rack 213. The demolding assembly 2... 3 includes several support legs 231 fixedly connected to the bottom of the support plate 1. A base plate 232 is fixedly connected to the bottom end of each support leg 231. A hydraulic push rod 233 is fixedly connected to the top of the base plate 232. A lower mold 234 is fixedly connected to the bottom of the support plate 1. A lifting groove 235 is formed on the inner wall of the bottom of the lower mold 234. A lifting plate 236 is slidably connected within the lifting groove 235. The output end of the hydraulic push rod 233 is fixedly connected to the lifting plate 236. A balancing component is provided on the lifting plate 236. The lower mold 234 communicates with the support plate 1. The balancing component includes components fixedly connected to the bottom of the lifting plate 236. The two balance bars 237 of the part extend to the outside of the lower mold 234 and are slidably connected to the lower mold 234. By setting up the processing part 2, when in use, the plate 211 to be processed is placed on the support plate 1. After the hydraulic push rod 222 is started, it drives the rack 213 to move inward along the slide rail 212 through the connecting plate 223. With the meshing transmission of the rack 213 and the gear 214, the two racks 213 will drive their respective positioning clamps 216 to move closer to each other, so as to achieve the centering positioning of the plate 211 on the top of the support plate 1, thereby reducing the stamping offset of the plate and improving the processing accuracy.

[0019] Configuration unit 3 includes a buffer assembly 31, which is disposed on the top of support plate 1; and a feeding assembly 32, which is installed on the top of support plate 1. The feeding assembly 32 is located to the right of the buffer assembly 31. The buffer assembly 31 includes two slide rod groups 311 fixedly connected to the top of support plate 1. A top plate 312 is fixedly connected to the top of the two slide rod groups 311. A hydraulic push rod 313 is fixedly connected to the top of the top plate 312. A slide plate 314 is slidably connected to the outer wall of the two slide rod groups 311. The output end of the hydraulic push rod 313 is fixedly connected to the slide plate 314. The bottom of the slide plate 314 is fixedly connected to... The system includes an upper mold 315, with a buffer ring 316 fitted on its outer wall. A worktable 317 is fixedly connected to the top of the support plate 1, and a buffer component is provided on the worktable 317. The output end of hydraulic push rod 313 extends to the outside of the top plate 312 and is slidably connected to it. The unloading assembly 32 includes a strip plate 321 fixedly connected to the top of the worktable 317. A hydraulic push rod 322 is fixedly connected to the right side of the strip plate 321, with its output end extending to the outside of the strip plate 321 and slidably connected to it. A push block 323 is fixedly connected to the output end of the hydraulic push rod 322. Two balance bars 324 are slidably connected to plate 321. The left ends of both balance bars 324 are fixedly connected to push block 323. A feeding slide 325 is fixedly connected to the left side of worktable 317. Push block 323 is located to the right of feeding slide 325. The buffer includes several dampers 318 fixedly connected to the top of worktable 317. A buffer plate 319 is fixedly connected to the top of each damper 318. The buffer plate 319 is adapted to a buffer ring 316. Springs 320 are wound around the outer walls of each damper 318. One end of each spring 320 is fixedly connected to worktable 317. The other end of the spring 320 is fixedly connected to the buffer plate 319. After the plate 211 is positioned by the configuration part 3, the hydraulic push rod 313 is activated. It uses two slide rod groups 311 to make the slide plate 314 drive the upper mold 315 through the worktable 317 and cooperate with the lower mold 234 at the bottom of the support plate 1 to punch the plate 211. During the punching, the buffer ring 316 driven by the upper mold 315 contacts the buffer plate 319 on the top of the worktable 317. The punching force is transmitted through the worktable 317 to multiple dampers 318 and spring 320 and compresses them, effectively buffering the impact force, reducing equipment vibration and noise, and extending the service life of the equipment.

[0020] One specific application of this embodiment is as follows: In use, the plate 211 to be processed can be placed on the support plate 1, and then the hydraulic push rod 222 is activated. The hydraulic push rod 222 will drive the corresponding rack 213 to move inward along the slide rail 212 through the connecting plate 223. Since the rack 213 meshes with the gear 214, under the transmission action of the gear 214, another rack 213 meshing with the gear 214 will drive its respective positioning clamp 216 to move closer to each other, thereby supporting the support plate 212. The plate 211 at the top of the support plate 1 is centered, which effectively reduces the offset of the plate 211 during the stamping process and further improves the processing accuracy. After the plate 211 is positioned, the hydraulic push rod 313 can be activated. The hydraulic push rod 313, with the help of two sliding rod groups 311, allows the slide plate 314 to drive the upper die 315 on it to pass through the worktable 317 and cooperate with the lower die 234 at the bottom of the support plate 1 to stamp the plate 211. The upper die 315 drives the buffer ring 316 through... During the stamping process on the workbench 317, the buffer ring 316 will contact the buffer plate 319 on the top of the workbench 317. At this time, the buffer ring 316 will transmit the stamping force to the workbench 317, and the workbench 317 will compress the multiple dampers 318 and springs 320 on it, thereby effectively buffering the impact force during the stamping process, reducing equipment vibration and noise, and extending the service life of the equipment. When the stamping is completed and the finished product needs to be removed from the lower die 234, the hydraulic push rod 233 can be activated. The upper mold 315, in conjunction with two balance bars 237, allows the finished product inside the slide plate 314 to pass through the lower mold 234 and be lifted onto the worktable 317. Subsequently, the hydraulic push rod 322 is activated, which, in conjunction with the two balance bars 324, allows the push block 323 to push the finished product to the unloading slide plate 325, where it is collected into the finished product box. The entire operation process is highly automated, with precise positioning, stable stamping, and convenient unloading, effectively improving production efficiency and product quality.

[0021] The foregoing description of specific exemplary embodiments of the present invention is for illustrative and explanatory purposes. These descriptions are not intended to limit the present invention to the precise forms disclosed, and it is obvious that many changes and variations can be made based on the above teachings. Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. The purpose of selecting and describing exemplary embodiments is to explain the specific principles of the present invention and its practical application, so that those skilled in the art, after reading this specification, can make modifications, substitutions, variations, and various choices and changes to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, variations, and choices and changes are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A positioning and demolding mechanism for a hydraulic press, comprising a support plate (1), characterized in that, Also includes: Processing section (2), which is disposed at the bottom of support plate (1); Configuration section (3), which is disposed on the top of support plate (1); The processing unit (2) includes a positioning component (21) which is mounted on the bottom of the support plate (1); A drive component (22) is mounted on a positioning component (21); as well as Demolding assembly (23), wherein the demolding assembly (23) is disposed at the bottom of the support plate (1); The positioning component (21) includes a plate (211) disposed on the top of the support plate (1). Two slide rails (212) are fixedly connected to the bottom of the support plate (1). A rack (213) is slidably connected to each of the two slide rails (212). A gear (214) is rotatably connected to the bottom of the support plate (1). The gear (214) meshes with the two racks (213). Two grooves (215) are opened on the top of the support plate (1). A positioning clamp (216) is fixedly connected to the top of each of the two racks (213). Both positioning clamps (216) are in contact with the plate (211). Both positioning clamps (216) extend outside the two grooves (215) and are slidably connected to the two grooves (215).

2. The positioning and demolding mechanism for a hydraulic press according to claim 1, characterized in that, The configuration unit (3) includes a buffer assembly (31) disposed on top of the support plate (1); and The feeding assembly (32) is installed on the top of the support plate (1); the feeding assembly (32) is located to the right of the buffer assembly (31).

3. The positioning and demolding mechanism for a hydraulic press according to claim 2, characterized in that, The drive assembly (22) includes a fixing block (221) fixedly connected to the bottom of the support plate (1). A hydraulic push rod (222) is sleeved on the fixing block (221), and a connecting plate (223) is fixedly connected to the corresponding rack (213). The output end of the hydraulic push rod (222) is fixedly connected to the connecting plate (223). The fixing block (221) is located on the rack (213) on the rear side.

4. The positioning and demolding mechanism for a hydraulic press according to claim 3, characterized in that, The demolding assembly (23) includes several legs (231) fixedly connected to the bottom of the support plate (1). The bottom ends of the legs (231) are fixedly connected to a base plate (232). The top of the base plate (232) is fixedly connected to a hydraulic push rod (233). The bottom of the support plate (1) is fixedly connected to a lower mold (234). The bottom inner wall of the lower mold (234) is provided with a lifting groove (235). A lifting plate (236) is slidably connected in the lifting groove (235). The output end of the hydraulic push rod (233) is fixedly connected to the lifting plate (236). A balancing component is provided on the lifting plate (236). The lower mold (234) communicates with the support plate (1).

5. A positioning and demolding mechanism for a hydraulic press according to claim 4, characterized in that, The buffer assembly (31) includes two slide rod groups (311) fixedly connected to the top of the support plate (1). The top of the two slide rod groups (311) is fixedly connected to a top plate (312). The top of the top plate (312) is fixedly connected to a hydraulic push rod three (313). The outer wall of the two slide rod groups (311) is slidably connected to a slide plate (314). The output end of the hydraulic push rod three (313) is fixedly connected to the slide plate (314). The bottom of the slide plate (314) is fixedly connected to an upper mold (315). The outer wall of the upper mold (315) is fitted with a buffer ring (316). The top of the support plate (1) is fixedly connected to a workbench (317). The workbench (317) is provided with a buffer component. The output end of the hydraulic push rod three (313) extends to the outside of the top plate (312) and is slidably connected to the top plate (312).

6. A positioning and demolding mechanism for a hydraulic press according to claim 5, characterized in that, The unloading assembly (32) includes a strip plate (321) fixedly connected to the top of the workbench (317). A hydraulic push rod (322) is fixedly connected to the right side of the strip plate (321). The output end of the hydraulic push rod (322) extends to the outside of the strip plate (321) and is slidably connected to the strip plate (321). A push block (323) is fixedly connected to the output end of the hydraulic push rod (322). Two balance rods (324) are slidably connected on the strip plate (321). The left ends of the two balance rods (324) are fixedly connected to the push block (323). The unloading slide plate (325) is fixedly connected to the left side of the workbench (317). The push block (323) is located to the right of the unloading slide plate (325).

7. A positioning and demolding mechanism for a hydraulic press according to claim 6, characterized in that, The balancing component includes two balance rods (237) fixedly connected to the bottom of the lifting plate (236). Both balance rods (237) extend to the outside of the lower mold (234) and are slidably connected to the lower mold (234).

8. A positioning and demolding mechanism for a hydraulic press according to claim 7, characterized in that, The buffer includes several dampers (318) fixedly connected to the top of the workbench (317). A buffer plate (319) is fixedly connected to the top of the several dampers (318). The buffer plate (319) is adapted to the buffer ring (316). Springs (320) are wound around the outer wall of the several dampers (318). One end of the several springs (320) is fixedly connected to the workbench (317), and the other end of the several springs (320) is fixedly connected to the buffer plate (319).