Positioning clamp special for flanging machine for steel door machining
By designing a combination of worktable, folding device, and adjustment device, and utilizing electric push rod and slide rod structure, the problem of unstable fixing of existing positioning clamps was solved, and the steel door was stably fixed and folded with high precision.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHONGQING MCMASON DOORS TECH CO LTD
- Filing Date
- 2025-05-16
- Publication Date
- 2026-04-17
AI Technical Summary
Existing folding machine positioning fixtures are difficult to use to securely hold steel doors, and cannot adapt to steel doors of different sizes, resulting in a decrease in folding accuracy and quality.
A positioning fixture including a worktable, a folding device, and an adjustment device was designed. Through the electric push rod and slide rod structure, it can achieve precise positioning and stable clamping of steel doors. The cooperation of the sliding clamp and the pin ensures side fixation, and the sliding connection of the limit plate and the slide groove enables flexible adjustment.
It achieves a stable fixation of steel doors, preventing lateral movement and shaking, ensuring the accuracy and quality of folding, and is easy to operate, adaptable to the processing of steel doors of different sizes.
Smart Images
Figure CN224128442U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of metal processing equipment technology, specifically a special positioning fixture for a steel door folding machine. Background Technology
[0002] As market demands for steel door styles and functions become increasingly diverse, the requirements for edge-folding processes are also becoming more complex.
[0003] Existing folding operations mostly utilize traditional folding machine positioning fixtures. In the fixing stage, the sides are often fixed. However, these fixtures often fail to provide stable clamping when securing steel doors. The fixed side fixing structure cannot be flexibly adjusted to different sizes of steel doors. When processing products of varying sizes, the poor fit between the fixture and the workpiece makes the steel door prone to lateral shifting during folding, severely affecting folding accuracy. In the top fixing stage, some fixtures rely solely on simple clamping devices with inadequate pressure control. When dealing with softer materials or steel doors of varying thicknesses, they cannot provide sufficient and uniform pressure, causing the workpiece to loosen vertically and further reducing folding quality. Utility Model Content
[0004] (a) Technical problems to be solved
[0005] To address the shortcomings of existing technologies, this utility model provides a special positioning fixture for a steel door folding machine, which solves the problems of poor fixing effect, inconvenient operation, and limited adaptability of traditional fixtures.
[0006] (II) Technical Solution
[0007] To achieve the above objectives, this utility model provides the following technical solution: a special positioning fixture for a steel door folding machine, comprising: a worktable, a folding device fixedly connected to the top of the worktable, an adjustment device slidably connected to the inner wall of the worktable, the adjustment device fixing the workpiece by sliding, the folding device including a U-shaped frame, an electric push rod fixedly connected to the inner wall of the U-shaped frame, a positioning plate fixedly connected to the bottom end of the electric push rod by bolts, the bottom end of the positioning plate contacting the top of the workpiece, the bottom end of the U-shaped frame fixedly connected to the top of the worktable, and an adjustment device fixedly connected to the side wall of the U-shaped frame.
[0008] Preferably, the outer wall of the workbench is provided with a positioning groove, and the inner wall of the workbench is rotatably connected with a folding assembly. The top end of the folding assembly contacts the bottom end of the workpiece. The electric push rod in the folding device can precisely control the position of the positioning piece. When the electric push rod is activated, it pushes the positioning piece down to make close contact with the top end of the workpiece. This allows for precise positioning and stable pressing of the steel door from above, effectively preventing the workpiece from shifting upwards or shaking during the folding process, and ensuring the accuracy of the folding position.
[0009] Preferably, the adjustment device includes a limiting plate, and a sliding rod is symmetrically slidably connected to the inner wall of the limiting plate through a sliding groove, and the sliding groove is opened in the inner wall of the limiting plate. A handle is fixedly connected to the outer wall of the sliding rod. The limiting plate is slidably connected to the inner wall of the worktable through the sliding rod, and the position can be flexibly adjusted according to the size of the workpiece.
[0010] Preferably, the side wall of the limiting plate is fixedly connected to the side wall of the U-shaped frame, and the outer wall of the slide rod is slidably connected to the inner wall of the worktable through a slide groove. The slide groove is opened on the inner wall of the worktable. The slide rod can be easily pushed to slide in the slide groove of the limiting plate and the worktable through the handle. After the slide rod is moved to a suitable position, it is fixed by the slide clamp and the pin.
[0011] Preferably, the outer wall of the slide rod is slidably connected to a slide clamp, and the inner wall of the slide clamp and the slide rod are slidably connected to a pin through a socket. The slide clamp and the slide rod are fixed firmly and reliably by means of a socket and a pin, thereby firmly fixing the workpiece from the side, further enhancing the fixing effect on the workpiece, and ensuring that the workpiece will not shift laterally during the folding operation.
[0012] Preferably, the bottom end of the sliding clamp is fixedly connected to the top end of the worktable, and the insertion hole is formed in the inner wall of the sliding rod and the sliding clamp.
[0013] (III) Beneficial Effects
[0014] This utility model provides a special positioning fixture for a bending machine used in steel door processing. It has the following advantages:
[0015] This utility model, through the combination of a folding device and an adjustment device, allows the limiting plate to slide against the inner wall of the worktable via a sliding rod, enabling flexible adjustment of its position according to the size of the workpiece. The operator can easily push the sliding rod through the grooves in the limiting plate and the worktable using a handle. After moving the sliding rod to the appropriate position, it is fixed in place using a sliding clamp and a pin. The sliding clamp and the sliding rod are secured firmly and reliably through the insertion of a pin and a hole, thus firmly fixing the workpiece from the side and further enhancing the fixation effect, ensuring that the workpiece will not shift laterally during folding operations. The electric push rod is connected to the positioning plate via bolts, making installation and disassembly convenient. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the structure of the adjustment device of this utility model;
[0018] Figure 3 This is a schematic diagram of the folding device of this utility model;
[0019] Figure 4 This is a schematic diagram of the slide bar of this utility model.
[0020] In the diagram: 1. Workbench; 2. Folding device; 20. U-shaped frame; 21. Electric push rod; 22. Positioning plate; 23. Positioning groove; 24. Folding assembly; 3. Adjustment device; 30. Limiting plate; 31. Slide rod; 32. Handle; 33. Slide clamp; 34. Pin. Detailed Implementation
[0021] 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.
[0022] Example
[0023] Please see Figure 1-4 This utility model provides a technical solution: a special positioning fixture for a steel door processing bending machine, comprising:
[0024] Workbench 1, with a folding device 2 fixedly connected to the top of the workbench 1 and an adjusting device 3 slidably connected to the inner wall of the workbench 1. The adjusting device 3 fixes the workpiece by sliding, adjusts and fixes the size of the workpiece, and then starts the folding device 2 to perform the folding operation.
[0025] The folding device 2 includes a U-shaped frame 20. An electric push rod 21 is fixedly connected to the inner wall of the U-shaped frame 20. A positioning plate 22 is fixedly connected to the bottom end of the electric push rod 21 by bolts. The bottom end of the positioning plate 22 contacts the top end of the workpiece. The bottom end of the U-shaped frame 20 is fixedly connected to the top end of the worktable 1. An adjustment device 3 is fixedly connected to the side wall of the U-shaped frame 20. The bottom end of the U-shaped frame 20 in the folding device 2 is fixedly connected to the top end of the worktable 1. The electric push rod 21 on the inner wall of the U-shaped frame 20 is activated. The electric push rod 21 begins to move downward through the positioning plate 22 connected by bolts. As the electric push rod 21 extends, the bottom end of the positioning plate 22 gradually contacts the top of the steel door and applies a certain pressure to press and fix the steel door in the vertical direction, preventing the steel door from shifting upward or shaking during the folding process, thus completing the top fixation of the workpiece. At this time, the steel door is firmly fixed on the side and top and is in a stable state. Then, the folding operation is carried out. The folding assembly 24 is driven by the motor to rotate on the inner wall of the worktable 1, so that the folding assembly 24 rotates at an angle with the bottom end of the workpiece and uses the reserved space of the positioning groove 23 to carry out the folding operation.
[0026] The outer wall of the workbench 1 is provided with a positioning groove 23, and the inner wall of the workbench 1 is rotatably connected with a folding assembly 24. The top of the folding assembly 24 contacts the bottom of the workpiece. After the folding process is completed, the electric push rod 21 retracts, driving the positioning piece 22 to move upward, relieving the pressure on the top of the steel door. The operator pulls out the pin 34 in the sliding clamp 33 and the sliding rod 31, and pushes the sliding rod 31 through the handle 32, so that it slides in the groove of the limiting plate 30 and the workbench 1, returning the sliding rod 31 and the sliding clamp 33 to their initial positions for the next round of folding work.
[0027] The adjustment device 3 includes a limiting plate 30. The inner wall of the limiting plate 30 is symmetrically connected to a sliding rod 31 via a sliding groove, and the sliding groove is opened in the inner wall of the limiting plate 30. A handle 32 is fixedly connected to the outer wall of the sliding rod 31. The side wall of the limiting plate 30 is fixedly connected to the side wall of the U-shaped frame 20. The outer wall of the sliding rod 31 is slidably connected to the inner wall of the worktable 1 via a sliding groove, and the sliding groove is opened in the inner wall of the worktable 1. Before processing the steel door folding edge, the operator first adjusts the position of the adjustment device 3 according to the size of the steel door to be processed. Since the limiting plate 30 is slidably connected to the inner wall of the worktable 1 via the sliding rod 31, and the outer wall of the sliding rod 31 is fixedly connected to the handle 32, the operator holds the handle 32 and pushes the sliding rod 31 to slide in the sliding groove on the inner wall of the limiting plate 30 and the sliding groove on the inner wall of the worktable 1. By observing the position of the sliding rod 31, it is adjusted to a position suitable for the width of the steel door to be processed.
[0028] A sliding clamp 33 is slidably connected to the outer wall of the slide rod 31. A pin 34 is slidably connected to the inner wall of the slide rod 31 through an insertion hole. The bottom end of the slide clamp 33 is fixedly connected to the top end of the worktable 1. The insertion hole is opened in the inner wall of the slide rod 31 and the slide clamp 33. The slide clamp 33, which is slidably connected to the outer wall of the slide rod 31, is fixed to the slide rod 31 through the insertion hole opened in the inner wall and the pin 34. The pin 34 is inserted into the insertion hole of the slide clamp 33 and the slide rod 31 to fix the slide rod 31 firmly in the current position, thereby completing the initial adjustment of the side fixed position of the workpiece.
[0029] When in use, the adjusting device 3 adjusts and fixes the size of the workpiece, and then the folding device 2 is started to perform the folding operation;
[0030] Before processing the steel door folding edge, the operator first adjusts the position of the adjusting device 3 according to the size of the steel door to be processed. Since the limiting plate 30 is slidably connected to the inner wall of the worktable 1 through the slide rod 31, and the outer wall of the slide rod 31 is fixedly connected to the handle 32, the operator holds the handle 32 and pushes the slide rod 31 to slide in the slide groove on the inner wall of the limiting plate 30 and the slide groove on the inner wall of the worktable 1. By observing the position of the slide rod 31, it is adjusted to a position suitable for the width of the steel door to be processed.
[0031] The sliding clamp 33, which is slidably connected to the outer wall of the slide rod 31, is fixed to the slide rod 31 through the insertion hole and the pin 34 opened on the inner wall. The pin 34 is inserted into the insertion hole of the sliding clamp 33 and the slide rod 31, so that the slide rod 31 is firmly fixed in the current position, thereby completing the initial adjustment of the fixed position of the side of the workpiece.
[0032] The steel door to be processed is placed on the workbench 1. The sliding rod 31 and sliding clamp 33 of the adjusting device 3 clamp the steel door from the side. Since the sliding rod 31 and sliding clamp 33 have been adjusted and fixed in position according to the size of the steel door, the steel door is firmly restricted in the side direction and cannot move laterally, thus achieving side fixation of the processed object.
[0033] The bottom end of the U-shaped frame 20 in the folding device 2 is fixedly connected to the top end of the workbench 1, and the electric push rod 21 on the inner wall of the U-shaped frame 20 is activated. The electric push rod 21 begins to move downward through the positioning plate 22 connected by bolts. As the electric push rod 21 extends, the bottom end of the positioning plate 22 gradually contacts the top end of the steel door and applies a certain pressure to press and fix the steel door in the vertical direction, preventing the steel door from shifting upward or shaking during the folding process, thus completing the top fixation of the workpiece. At this time, the steel door is firmly fixed on the side and top and is in a stable state. Then the folding operation is carried out. The folding assembly 24 is driven by a motor to rotate on the inner wall of the workbench 1, so that the folding assembly 24 rotates at an angle with the bottom end of the workpiece and uses the reserved space of the positioning groove 23 to carry out the folding operation.
[0034] After the hemming process is completed, the electric push rod 21 retracts, causing the positioning piece 22 to move upward, relieving the pressure on the top of the steel door. The operator pulls out the pin 34 in the sliding clamp 33 and the sliding rod 31, and pushes the sliding rod 31 through the handle 32, so that it slides in the groove of the limiting plate 30 and the worktable 1, returning the sliding rod 31 and the sliding clamp 33 to their initial positions for the next round of hemming work.
[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.
[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A special positioning fixture for a steel door folding machine, comprising: The workbench (1) is characterized by: The top of the workbench (1) is fixedly connected to a folding device (2), and the inner wall of the workbench (1) is slidably connected to an adjustment device (3). The adjustment device (3) fixes the workpiece by sliding. The folding device (2) includes a U-shaped frame (20), an electric push rod (21) is fixedly connected to the inner wall of the U-shaped frame (20), a positioning plate (22) is fixedly connected to the bottom end of the electric push rod (21) by bolts, the bottom end of the positioning plate (22) contacts the top end of the workpiece, the bottom end of the U-shaped frame (20) is fixedly connected to the top end of the worktable (1), and an adjustment device (3) is fixedly connected to the side wall of the U-shaped frame (20).
2. A special positioning clamp for a flanging machine for processing steel doors according to claim 1, characterized in that: The outer wall of the workbench (1) is provided with a positioning groove (23), and the inner wall of the workbench (1) is rotatably connected with a folding assembly (24), the top of the folding assembly (24) is in contact with the bottom of the workpiece.
3. The special positioning clamp for the flanging machine of the steel door processing according to claim 1, characterized in that: The adjustment device (3) includes a limiting plate (30), and a sliding rod (31) is symmetrically slidably connected to the inner wall of the limiting plate (30) through a sliding groove. The sliding groove is opened in the inner wall of the limiting plate (30), and a handle (32) is fixedly connected to the outer wall of the sliding rod (31).
4. The special positioning clamp for the flanging machine of the steel door processing according to claim 3, characterized in that: The side wall of the limiting plate (30) is fixedly connected to the side wall of the U-shaped frame (20), and the outer wall of the slide rod (31) is slidably connected to the inner wall of the workbench (1) through a slide groove, and the slide groove is opened on the inner wall of the workbench (1).
5. A special positioning clamp for a flanging machine for processing steel doors according to claim 4, characterized in that: The outer wall of the slide rod (31) is slidably connected to a sliding clamp (33), and the inner wall of the sliding clamp (33) and the slide rod (31) are slidably connected to a pin (34) through a socket.
6. A special positioning clamp for a flanging machine for processing steel doors according to claim 5, characterized in that: The bottom end of the sliding clamp (33) is fixedly connected to the top end of the workbench (1), and the insertion hole is opened in the inner wall of the sliding rod (31) and the sliding clamp (33).