Double-acting hydraulic sheet drawing press
By introducing an electric push rod and a stop block structure into a double-action thin plate stretching hydraulic press, the safety hazards during workpiece handling were resolved, and safety was improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-08
- Publication Date
- 2026-04-07
AI Technical Summary
Existing double-action thin plate stretching hydraulic presses lack safety protection when picking up thin plate workpieces from the worktable, posing a risk of accidental crushing and injury to workers, resulting in low safety.
A double-action thin plate stretching hydraulic press was designed, which adopts a combination structure of electric push rod and stop block. When the workpiece is picked up, the electric push rod drives the stop block to extend out of the worktable surface to block the stretching base plate from falling accidentally and avoid injuring the worker.
It achieves safety protection when handling workpieces, avoids accidental crushing of workers, and improves safety.
Smart Images
Figure CN224087710U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hydraulic press technology, specifically a double-action thin plate stretching hydraulic press. Background Technology
[0002] A hydraulic press is a machine that uses liquid as its working medium and is designed based on Pascal's principle to transmit energy to achieve various processes. It utilizes the pressure-transmitting properties of liquids to perform operations such as stretching, bending, and forming of metal sheets. Hydraulic presses are used when stretching thin sheets, and they can be divided into double-action thin sheet stretching hydraulic presses and single-action thin sheet stretching hydraulic presses.
[0003] Existing double-action thin plate stretching hydraulic presses lack safety protection when handling thin plate workpieces on the worktable, posing a risk of accidental crushing and injury to workers, resulting in low safety. Therefore, there is an urgent need for a double-action thin plate stretching hydraulic press to solve the above-mentioned technical problems. Utility Model Content
[0004] The purpose of this utility model is to provide a double-action thin plate stretching hydraulic press to solve the problem mentioned in the background art that the existing double-action thin plate stretching hydraulic press cannot provide safety protection when picking up thin plate workpieces on the worktable, which poses a risk of accidental crushing and injury to workers, resulting in low safety.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A double-action thin plate stretching hydraulic press includes a base with a groove at the bottom and a worktable at the top. Guide columns are connected to the four corners of the top of the worktable, and a supporting top plate is connected to the top of each guide column. A stretching bottom plate is fitted around the middle of the four guide columns, and a supporting beam plate is fitted around the upper end of each guide column. A first hydraulic cylinder is located at the middle of the top of the supporting top plate, and second hydraulic cylinders are connected to both sides of the bottom of the supporting beam plate. The bottoms of the two second hydraulic cylinders are connected to the stretching bottom plate. A pressing block is installed at the bottom of the stretching bottom plate. A thin plate stretching mold is located at the middle of the upper end of the base. Stops are embedded on the upper surface of the worktable at both ends of the thin plate stretching mold. Two electric push rods are installed inside the bottom of the worktable, with their push rods passing through the top of the worktable and connected to the two stop blocks respectively.
[0007] As a preferred embodiment of this invention, the supporting beam plate can move up and down along the four guide columns.
[0008] As a preferred embodiment of this invention, the stretching base plate can move up and down along the four guide columns.
[0009] In a preferred embodiment of this invention, the two stops are not connected to the worktable.
[0010] As a preferred embodiment of this utility model, the two electric push rods are connected by a support frame, and the bottom of the support frame is connected to the inner bottom of the base.
[0011] As a preferred embodiment of this utility model, the number of grooves is set to two, and the two grooves are arranged symmetrically about the base.
[0012] Compared with the prior art, the present invention has the following beneficial effects:
[0013] This utility model features two electric push rods and two stops. By utilizing the cooperative action between the two electric push rods and the two stops, safety protection can be achieved when picking up thin plate workpieces on the workbench, preventing accidental crushing injuries to workers and improving safety. Attached Figure Description
[0014] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0016] Figure 2 This is a front view structural diagram of the present invention;
[0017] Figure 3 This is a cross-sectional structural diagram of the present invention.
[0018] In the diagram: 1. Base; 2. Workbench; 3. Guide column; 4. Stretching base plate; 5. Support beam plate; 6. Support top plate; 7. First hydraulic cylinder; 8. Second hydraulic cylinder; 9. Thin plate stretching die; 10. Stop block; 11. Electric push rod; 12. Support frame; 13. Lower pressure block; 14. Groove. Detailed Implementation
[0019] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the utility model. Furthermore, it should be noted that, for ease of description, only the parts relevant to the utility model are shown in the accompanying drawings. In the embodiments of the present utility model, the different types of cross-sectional lines are not labeled according to national standards, nor do they specify material requirements for the components; they are used to distinguish the cross-sectional views of the components in the drawings.
[0020] Please see Figure 1-3A double-action thin plate stretching hydraulic press includes a base 1 with a groove 14 at the bottom and a worktable 2 at the top. Guide columns 3 are connected to the four corners of the top of the worktable 2, and a support plate 6 is connected to the top of each of the four guide columns 3. A stretching bottom plate 4 is fitted around the middle of each of the four guide columns 3, and a support beam plate 5 is fitted around the upper end of each of the four guide columns 3. A first hydraulic cylinder 7 is located at the middle of the top of the support plate 6, and second hydraulic cylinders 8 are connected to both sides of the bottom of the support beam plate 5. The bottoms of the two second hydraulic cylinders 8 are connected to the stretching bottom plate 4. The plates 4 are connected together. A pressing block 13 is installed at the bottom of the stretching base plate 4. A thin plate stretching mold 9 is set at the middle of the upper end of the base 1. A stop block 10 is embedded on the upper surface of the worktable 2 and at both ends of the thin plate stretching mold 9. Two electric push rods 11 are installed at the bottom of the inside of the worktable 2. The push rods of the two electric push rods 11 pass through the top of the worktable 2 and are connected to the two stop blocks 10 respectively. By utilizing their mutual cooperation, safety protection can be achieved when picking up the thin plate workpiece on the worktable 2, avoiding accidental crushing of workers and improving safety.
[0021] Among them, the supporting beam 5 can move up and down along the four guide columns 3.
[0022] The stretching base plate 4 can move up and down along the four guide columns 3.
[0023] The two stops 10 are not connected to the worktable 2.
[0024] The two electric push rods 11 are connected by a support frame 12, and the bottom of the support frame 12 is connected to the bottom of the base 1.
[0025] The number of grooves 14 is set to two, and the two grooves 14 are arranged symmetrically about the base 1.
[0026] The working principle and usage process of this utility model are as follows: First, during operation, the first hydraulic cylinder 7 supports the support beam plate 5, which in turn provides top support for the two second hydraulic cylinders 8. The two second hydraulic cylinders 8 drive the lower pressure block 13 at the bottom of the stretching base plate 4 to move downward, thereby pressing and stretching the thin plate placed on the thin plate stretching mold 9. Driven by the first hydraulic cylinder 7, the support beam plate 5 moves downward along the four guide columns 3. The two second hydraulic cylinders 8 drive the stretching base plate 4 to move downward along the four guide columns 3, thereby achieving double action.
[0027] When a worker takes a product from the sheet metal stretching die 9, the two electric push rods 11 are activated to drive the two stops 10 to extend out of the upper surface of the worktable 2 and reach the specified height. The two stops 10 can block the stretching base plate 4 from falling accidentally, preventing accidental injury to the worker's hand and improving safety. The contents not described in detail in this instruction are existing technologies known to those skilled in the art.
[0028] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the utility model involved in this application is not limited to the technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.
Claims
1. A double-action thin plate stretching hydraulic press, comprising a base (1), characterized in that: The base (1) has a groove (14) at its bottom and a workbench (2) at its top. Guide columns (3) are connected to the four corners of the top of the workbench (2). A supporting top plate (6) is connected to the top of each of the four guide columns (3). A tensioning bottom plate (4) is fitted around the middle of each of the four guide columns (3). A supporting beam plate (5) is fitted around the upper end of each of the four guide columns (3). A first hydraulic cylinder (7) is located in the middle of the top of the supporting top plate (6). A second hydraulic cylinder (7) is connected to the bottom sides of the supporting beam plate (5). Two hydraulic cylinders (8) are connected at the bottom to the stretching base plate (4). A pressing block (13) is installed at the bottom of the stretching base plate (4). A thin plate stretching mold (9) is provided at the middle of the upper end of the base (1). A stop block (10) is embedded on the upper surface of the worktable (2) and at both ends of the thin plate stretching mold (9). Two electric push rods (11) are installed at the bottom inside the worktable (2). The push rods of the two electric push rods (11) pass through the top of the worktable (2) and are connected to the two stop blocks (10) respectively.
2. The double-action thin plate stretching hydraulic press according to claim 1, characterized in that: The supporting beam (5) can move up and down along the four guide columns (3).
3. The double-action thin plate stretching hydraulic press according to claim 1, characterized in that: The stretching base plate (4) can move up and down along the four guide columns (3).
4. A double-action thin plate stretching hydraulic press according to claim 1, characterized in that: The two stops (10) are not connected to the worktable (2).
5. A double-action thin plate stretching hydraulic press according to claim 1, characterized in that: The two electric push rods (11) are connected by a support frame (12), the bottom of which is connected to the bottom of the base (1).
6. A double-action thin plate stretching hydraulic press according to claim 1, characterized in that: The number of the grooves (14) is set to two, and the two grooves (14) are arranged symmetrically about the base (1) on the left and right axes.