Side gear structure of plate bending machine

By designing a hydraulic locking structure and a spring compensation mechanism, the problem of side baffles loosening under high pressure was solved, achieving stable positioning of the side baffles of the sheet metal bending machine and improving bending accuracy.

CN223916335UActive Publication Date: 2026-02-17BENGBU DEJUN MACHINERY CO LTD
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Patent Information

Application Number
CN202520501741.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-21
Publication Date
2026-02-17
Estimated Expiration
2035-03-21

AI Technical Summary

Technical Problem

The side baffles of the existing sheet metal bending machine are prone to loosening under high pressure, resulting in insufficient positioning and affecting the bending effect of the sheet metal.

Method used

A hydraulic locking structure combined with a spring compensation mechanism is adopted. The side baffle is locked in position to prevent loosening through the cooperation of a small hydraulic push rod and a return spring.

Benefits of technology

The stability of the side baffles is improved, ensuring that the sheet metal does not shift during bending, thus improving bending accuracy and effect.

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Abstract

The utility model provides a plate bending machine side gear structure which comprises a bending machine frame, a side baffle and an installation frame, a fixed top plate is installed at the upper end of the bending machine frame, a fixed lower die is installed on the table top of the bending machine frame, a limiting groove is formed in the table top of the bending machine frame, and two metal pipes are horizontally installed in the limiting groove through a plurality of flanges and bolts. The left end and the right end of the outer part of each metal pipe are sleeved with a movable plate in a sliding mode, and the problems that after an existing side baffle is adjusted, the position is not firm enough, the side baffle is likely to be loosened in a high-pressure environment, the side baffle is displaced, and then the follow-up bending effect of a plate is affected are solved through the design. And the position of the side baffle can be locked, so that the side baffle is prevented from moving in the subsequent bending process of the plate, and the stability is improved.
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Description

Technical Field

[0001] This utility model relates to a side stop structure for a sheet metal bending machine, belonging to the technical field of bending machines. Background Technology

[0002] Sheet metal bending machines are mechanical devices used for processing sheet metal, widely applied in industries such as automobile manufacturing, aerospace, and home appliances. The side stop structure is a crucial component of the sheet metal bending machine, primarily used for positioning and fixing the sheet metal to ensure bending accuracy. The sheet metal is placed on the worktable, and the side stop positions the sides of the sheet metal, restricting its lateral movement. While existing side stops can be adjusted in position according to the width of the sheet metal, this is not always the case.

[0003] However, the existing side baffle is not secure enough after adjustment, and it may loosen under high pressure, causing the side baffle to shift and affecting the subsequent bending effect of the sheet metal. There is an urgent need for a side baffle structure for sheet metal bending machines to solve the above problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, the purpose of this invention is to provide a side stop structure for a sheet metal bending machine to solve the problems mentioned in the background. This invention employs a hydraulic locking structure combined with a spring compensation mechanism to lock the side stop in position, preventing displacement of the side stop during subsequent sheet metal bending and increasing stability.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a side stop structure for a sheet metal bending machine, comprising a bending machine frame, side baffles, and mounting frames. A fixed top plate is installed on the upper end of the bending machine frame, and a fixed lower die is installed on the bending machine frame table. A limit groove is provided on the bending machine frame table, and two metal tubes are horizontally installed inside the limit groove via multiple flanges and bolts. Movable plates are slidably fitted onto the left and right ends of the two metal tubes. Two side baffles are provided, and the two side baffles are symmetrically welded to the upper ends of the two movable plates. Two sets of mounting side plates are installed on the inner sides of the two side baffles via multiple bolts. Two mounting frames are provided, and the two mounting frames are respectively welded to the inner sides of the two sets of mounting side plates. Small hydraulic push rods and hollow frames are fixedly installed on the inner sides of both mounting frames. Fixed plates are fixed to the front ends of both hollow frames. Push-pull handles slide through the front ends of both fixed plates. Return springs are installed at the rear ends of both fixed plates. Limit push blocks are horizontally fixed to the rear ends of both push-pull handles.

[0006] Furthermore, a bending upper die is suspended in mid-air at the upper end of the fixed top plate via a hydraulic rod, and the bending upper die is located directly above the fixed lower die.

[0007] Furthermore, both of the side baffles have cylindrical through holes on their inner sides, and the movable ends of the two small hydraulic push rods pass through the two cylindrical through holes respectively, and the movable ends of the two small hydraulic push rods abut against the fixed lower mold.

[0008] Furthermore, the rear ends of the two reset springs abut against the two limiting push blocks respectively.

[0009] Furthermore, rectangular through holes are provided at the lower inner ends of both side baffles, and the two limiting push blocks pass through the two rectangular through holes respectively.

[0010] Furthermore, the rear ends of both limiting push blocks abut against the fixed lower mold.

[0011] The beneficial effects of this utility model are as follows: This utility model provides a side stop structure for a sheet metal bending machine. Because this utility model adds a metal tube, a movable plate, a side stop, a mounting frame, a mounting side plate, a small hydraulic push rod, a hollow frame, a fixed plate, a push-pull handle, a return spring, and a limiting push block, our design improvements and actual use have shown that this device has a reasonable structure and good practicality. The use of a hydraulic locking structure combined with a spring compensation mechanism can lock the position of the side stop, preventing the side stop from shifting during the subsequent bending process of the sheet metal and increasing stability. Attached Figure Description

[0012] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0013] Fig. 1 This is a three-dimensional schematic diagram of the overall structure of the side stop structure of a sheet metal bending machine according to the present invention;

[0014] Fig. 2 This is an enlarged schematic diagram of the mounting frame position of the side stop structure of a sheet metal bending machine according to this utility model;

[0015] Fig. 3 This is a three-dimensional connection diagram of the push-pull handle of the side stop structure of a sheet metal bending machine according to this utility model.

[0016] In the diagram: 1-Bending machine frame, 2-Fixed top plate, 3-Bending upper die, 4-Fixed lower die, 5-Limiting groove, 6-Metal pipe, 7-Moving plate, 8-Side baffle, 9-Mounting frame, 10-Mounting side plate, 11-Small hydraulic push rod, 12-Hollow frame, 13-Fixed plate, 14-Push-pull handle, 15-Reset spring, 16-Limiting push block. Detailed Implementation

[0017] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0018] Please see Figs. 1-3 This utility model provides a technical solution: a side stop structure for a sheet metal bending machine, including a bending machine frame 1, side baffles 8, and a mounting frame 9. A fixed top plate 2 is installed on the upper end of the bending machine frame 1, and a fixed lower die 4 is installed on the table of the bending machine frame 1. A limit groove 5 is opened at the table of the bending machine frame 1. Two metal pipes 6 are horizontally installed inside the limit groove 5 through multiple flanges and bolts. Movable plates 7 are slidably sleeved on the left and right ends of the two metal pipes 6. Two side baffles 8 are provided, and the two side baffles 8 are symmetrically welded to the upper ends of the two movable plates 7. Two sets of mounting side plates 10 are installed on the inner side of the two side baffles 8 through multiple bolts. The mounting frame 9... There are two mounting frames 9, which are welded to the inner sides of the two sets of mounting side plates 10 respectively. Small hydraulic push rods 11 and hollow frames 12 are fixedly installed on the inner sides of the two mounting frames 9. Fixed plates 13 are fixed to the front ends of the two hollow frames 12. Push-pull handles 14 slide through the front ends of the two fixed plates 13. Return springs 15 are installed at the rear ends of the two fixed plates 13. Limiting push blocks 16 are horizontally fixed at the rear ends of the two push-pull handles 14. This design solves the problem that the existing side baffle is not stable enough after adjustment, and may loosen under high pressure, causing the side baffle to shift and thus affecting the subsequent bending effect of the sheet.

[0019] As the first embodiment of this utility model: a bending upper die 3 is suspended in the upper part of the fixed top plate 2 by a hydraulic rod, and the bending upper die 3 is directly above the fixed lower die 4. The inner sides of the two side baffles 8 are provided with cylindrical through holes. The movable ends of the two small hydraulic push rods 11 pass through the two cylindrical through holes respectively, and the movable ends of the two small hydraulic push rods 11 abut against the fixed lower die 4. By adding the two small hydraulic push rods 11, the movable ends of the two small hydraulic push rods 11 pass through the two cylindrical through holes respectively and abut against the fixed lower die 4, the position between the two side baffles 8 and the fixed lower die 4 is locked.

[0020] Both side baffles 8 have rectangular through holes at their lower inner sides. Two limiting push blocks 16 pass through the two rectangular through holes respectively, and the rear ends of the two limiting push blocks 16 abut against the fixed lower mold 4. The rear ends of the two return springs 15 abut against the two limiting push blocks 16 respectively. By adding the two limiting push blocks 16, the elastic force of the return springs 15 can be used to compensate for the force. They pass through the two rectangular through holes respectively and abut against the fixed lower mold 4, thus locking the position between the two side baffles 8 and the fixed lower mold 4 again.

[0021] As a second embodiment of this utility model: the sheet metal is placed above the fixed lower mold 4, and then the two push-pull handles 14 are pulled forward. The two push-pull handles 14 drive the two limiting push blocks 16 to move forward within the two hollow frames 12, which will compress the two return springs 15. Then, the forward pulling force is maintained and they move towards each other, so that the two moving plates 7 move towards each other outside the two metal tubes 6 until the two side baffles 8 are in contact with the left and right sides of the sheet metal. Then, the two push-pull handles 14 are released, and the two return springs 15 return to their original position, which can push the two limiting push blocks. 16. This causes the rear ends of the two limiting push blocks 16 to pass through the two rectangular through holes and abut against the fixed lower mold 4. Then, the two small hydraulic push rods 11 are activated. The movable ends of the two small hydraulic push rods 11 pass through the two cylindrical through holes and abut against the fixed lower mold 4. At this time, the position lock between the two side baffles 8 and the fixed lower mold 4 can be achieved (Note: The small hydraulic push rods 11 are existing mature components, and their working principle is known to those skilled in the art, so it will not be described in detail). This ensures the stable blocking effect of the two side baffles 8 on both sides of the plate.

[0022] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0023] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A side stop structure of a sheet metal bending machine, comprising a bending machine frame (1), a side stop plate (8) and a mounting frame (9), characterized in that: The bending machine frame (1) upper end is provided with a fixed top plate (2), the bending machine frame (1) table top is provided with a fixed lower die (4), the bending machine frame (1) table top is provided with a limiting groove (5), the limiting groove (5) is internally provided with two metal pipes (6) through a plurality of flanges and bolts, Two The metal pipe (6) outside left and right end sliding sleeve is provided with a moving plate (7), the side baffle (8) is provided with two, two The side baffle (8) is symmetrically welded on the upper end of two moving plates (7), two The side baffle (8) is internally provided with two groups of installation side plates (10) through a plurality of bolts, the installation frame (9) is provided with two, two The installation frame (9) is respectively welded on the inner side of two groups of installation side plates (10), two The installation frame (9) inner side is fixed with small hydraulic push rod (11) and hollow frame (12), two The hollow frame (12) front end is fixed with a fixed sheet plate (13), two The fixed sheet plate (13) front end is slidingly penetrated by a push-pull handle (14), two The fixed sheet plate (13) rear end is provided with a reset spring (15), two The rear end of push-pull handle (14) is fixed with a limiting push block (16).

2. The side stop structure of a sheet bending machine according to claim 1, characterized in that: The fixed top plate (2) is internally provided with a bending upper die (3) suspended by a hydraulic rod, and the bending upper die (3) is directly above the fixed lower die (4).

3. The side stop structure of a sheet bending machine according to claim 1, characterized in that: Two The side baffle (8) inner side is provided with a cylindrical through hole, two The movable end of small hydraulic push rod (11) passes through two cylindrical through holes, and the movable end of two The small hydraulic push rod (11) is in contact with the fixed lower die (4).

4. The side stop structure of a sheet bending machine according to claim 1, characterized in that: Two The rear end of reset spring (15) is in contact with two limiting push block (16).

5. The side stop structure of a sheet bending machine according to claim 1, characterized in that: Two The side baffle (8) inner side lower end is provided with a rectangular through hole, two The limiting push block (16) passes through two rectangular through holes.

6. The side stop structure of a sheet bending machine according to claim 5, characterized in that: Two The rear end of limiting push block (16) is in contact with the fixed lower die (4).