Manual thin steel plate bending machine

Abstract

The present invention discloses a manual thin steel plate bending machine, which includes a base and a handle, four guide columns and two brackets are connected to the base, a sliding sleeve 1 and a sliding sleeve 2 are arranged on the guide columns, two symmetrical vertical plates are connected between the sliding sleeve 1, a flat plate is connected between the vertical plates, a fixed frame is connected between the sliding sleeve 2, a threaded sleeve is arranged on the fixed frame, a screw rod passes through the threaded sleeve and is connected to the flat plate, a handle is connected to the top of the screw rod, a bearing seat is arranged on the vertical plate and a bending shaft is connected through a bearing, a bearing shaft is arranged between the brackets, and a plurality of bearings are strung on the bearing shaft. A screw guide column structure is adopted to manually bend thinner steel plates, and an all-steel welded structure is adopted, which has sufficient strength and rigidity; a rotating handle is placed on the upper fixed frame to directly drive the sliding sleeve 1 to work; the sliding sleeve 1 synchronization mechanism adopts a guide column to force synchronization; a mechanical block structure is adopted, which is stable and reliable.

Description

Technical Field

[0001] The invention relates to a steel plate bending machine, in particular to a manual thin steel plate bending machine, and belongs to the technical field of mechanical equipment processing. Background Art

[0002] Press brake is an important equipment for bending workpieces in the sheet metal industry. Its function is to press steel plates into parts of various shapes according to process requirements.

[0003] In the manufacture of automobile body structures, it is common to encounter the need to bend steel plates of different thicknesses. However, due to the limitation of processing equipment, in the absence of presses or folding machines, the processing of such parts can only be entrusted to other units with presses or folding machines. In the process of outsourcing, not only the transportation process of raw materials or parts is increased, the turnover cycle of the project is extended, the production cost is increased, and a lot of trouble is caused to the production management work. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a manual thin steel plate bending machine, which can manually complete arc-shaped bending processing on thin steel plates with a thickness of 0.1mm~3mm according to manufacturing requirements on site, so as to solve the above-mentioned problems of long construction period, high cost and bending as needed.

[0005] The technical solution of the present invention is: a manual thin steel plate bending machine, which includes a base and a handle, four guide columns and two brackets are connected to the base, slide sleeves 1 and 2 are provided on the guide columns, two symmetrical vertical plates are connected between the slide sleeves 1, a flat plate is connected between the vertical plates, a fixed frame is connected between the slide sleeves 2, a threaded sleeve is provided on the fixed frame, a screw rod passes through the threaded sleeve and is connected to the flat plate, a handle is connected to the top of the screw rod, a bearing seat is provided on the vertical plate and is connected to a bending shaft through a bearing, a bearing shaft is provided between the brackets, and a plurality of bearings are strung on the bearing shaft.

[0006] The bracket is vertically and symmetrically arranged between the guide pillars. Symmetrical grooves are provided on the bracket, and both ends of the bearing shaft are located in the grooves.

[0007] The bending shaft is horizontally arranged above the bearing shaft and is parallel to the axis of the bearing shaft.

[0008] The second sliding sleeve is located above the first sliding sleeve, and a locking screw is arranged on the second sliding sleeve.

[0009] The beneficial effects of the present invention are as follows: compared with the prior art, the technical solution of the present invention adopts a screw guide column structure to manually bend a thinner steel plate, and adopts an all-steel welded structure with sufficient strength and rigidity; the rotating handle is placed on the upper fixed frame to directly drive the sleeve to work; the sleeve synchronization mechanism adopts guide columns to force synchronization; and a mechanical block structure is adopted, which is stable and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 The structure of the present invention is shown in FIG. Figure 1 ;

[0011] Figure 2 The structure of the present invention is shown in FIG. Figure 2 ;

[0012] Figure 3 The structure of the present invention is shown in FIG. Figure 3 ;

[0013] Figure 4 The structure of the present invention is shown in FIG. Figure 4 ;

[0014] Figure 5 The structure of the present invention is shown in FIG. Figure 5 ;

[0015] Figure 6 The support structure of the present invention is shown in FIG. Figure 1 ;

[0016] Figure 7 The support structure of the present invention is shown in FIG. Figure 2 ;

[0017] Figure 8 It is a schematic diagram of the connection structure of the vertical plate and the flat plate of the present invention. DETAILED DESCRIPTION

[0018] In order to make the objectives, technical solutions and advantages of the present invention more clear, the present invention will be further described in detail below with reference to the accompanying drawings of this specification.

[0019] Embodiment 1: As attached Figures 1 to 8 As shown, a manual thin steel plate bending machine includes a base 10 and a handle 1. Four guide columns 9 and two brackets 11 are connected to the base 10. A sliding sleeve 1 6 and a sliding sleeve 2 4 are provided on the guide column 9. Two symmetrical vertical plates 13 are connected between the sliding sleeve 1 6. A flat plate 17 is connected between the vertical plates 13. A fixing frame 16 is connected between the sliding sleeve 2 4. A threaded sleeve 3 is provided on the fixing frame 16. A screw 2 passes through the threaded sleeve 3 and is connected to the flat plate 17. The handle 1 is connected to the top of the screw 2. A bearing seat 5 is provided on the vertical plate 13 and is connected to a bending shaft 14 through a bearing. A bearing shaft 8 is provided between the brackets 11, and a plurality of bearings 7 are strung on the bearing shaft 8.

[0020] Furthermore, the bracket 11 is vertically symmetrically arranged between the guide columns 9, and symmetrical grooves 20 are provided on the bracket 11, and both ends of the bearing shaft 8 are located in the grooves 20. The grooves 20 are symmetrically arranged in three pairs, with different heights and an arc-shaped structure, so that different bending size requirements can be met.

[0021] Furthermore, the bending shaft 14 is arranged horizontally above the bearing shaft 8 and parallel to the axis of the bearing shaft 8. The bending shaft 14 and the two bearing shafts 8 form three linear contact surfaces with the thin steel plate to be bent. The thin steel plate to be bent passes horizontally between the bending shaft 14 and the bearing shaft 8. The bearing shaft 8 is fixed in the vertical direction. By shaking the handle 1, the flat plate 17 is driven to move downward. At this time, the bending shaft 14 will slowly move downward to perform a bending operation on the thin steel plate. Since there are bearings at both ends of the bending shaft 14, the bending shaft 14 can roll instead of sliding during the bending process, and the steel plate will not be strained.

[0022] Furthermore, the bearing 7 adopts a ball bearing, which is an innovation. When the steel plate is bent downward, the rolling characteristics of the ball bearing can reduce the friction and contact wear of the steel plate, thereby maintaining the integrity of the shape of the steel plate.

[0023] Furthermore, the bending shaft 14 is provided with shaft sleeves 12 of different sizes, and the shaft sleeve 12 of a certain diameter can be matched according to the required bending size of the steel plate, which can greatly improve the application scope of the device.

[0024] Further, the second sleeve 4 is located above the first sleeve 6, and a locking screw 15 is provided on the second sleeve 4. The second sleeve 4 is fixedly positioned on the guide column 9 by the locking screw 15, and the second sleeve 4 can be adjusted up and down on the guide column 9 to meet different bending requirements.

[0025] The thinner steel plate is manually bent using a screw guide column structure. The all-steel welded structure has sufficient strength and rigidity. The rotary handle is placed on the upper fixed frame to directly drive the sleeve to work. The sleeve synchronization mechanism uses a guide column to force synchronization. The mechanical block structure is stable and reliable.

[0026] The parts not described in detail in the present invention are all known technologies to those skilled in the art. Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not limiting. Although the present invention is described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solutions of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. A manual thin steel plate bending machine, comprising a base (10) and a handle (1), characterized in that: The base (10) is connected to four guide columns (9) and two brackets (11). The guide columns (9) are provided with a first sliding sleeve (6) and a second sliding sleeve (4). Two symmetrical vertical plates (13) are connected between the first sliding sleeve (6). A flat plate (17) is connected between the vertical plates (13). A fixed frame (16) is connected between the second sliding sleeve (4). The fixed frame (16) is provided with a threaded sleeve (3). The screw (2) passes through the threaded sleeve (3) and is connected to the flat plate (17). The handle (1) is connected to the top of the screw (2). A bearing seat (5) is provided on the vertical plate (13) and is connected to a bending shaft (14) via a bearing. A bearing shaft (8) is provided between the brackets (11). A plurality of bearings (7) are strung on the bearing shaft (8). The rolling characteristics of the bearing can reduce the friction and contact wear of the steel plate and maintain the appearance integrity of the steel plate. The bracket (11) is vertically symmetrically arranged between the guide columns (9). Symmetrical grooves (20) are provided on the bracket (11). Both ends of the bearing shaft (8) are located in the grooves (20). The grooves (20) are symmetrically arranged in three pairs with different heights and an arc-shaped structure to meet the requirements of different bending dimensions. The bending shaft (14) is horizontally arranged above the bearing shaft (8) and parallel to the axis of the bearing shaft (8). The bending shaft (14) is provided with shaft sleeves (12) of different sizes. According to the required bending dimensions of the steel plate, shaft sleeves (12) of a certain diameter are matched. The second sliding sleeve (4) is located above the first sliding sleeve (6). The second sliding sleeve (4) is provided with a locking screw (15). The second sliding sleeve (4) is fixedly positioned on the guide column (9) by the locking screw (15). The second sliding sleeve (4) can be adjusted up and down on the guide column (9). The bending shaft (14) and the two bearing shafts (8) form three linear contact surfaces with the thin steel plate to be bent. The thin steel plate to be bent passes horizontally between the bending shaft (14) and the bearing shaft (8). The bearing shaft (8) is fixed in the vertical direction. By shaking the handle (1), the plate (17) is driven to move downward. At this time, the bending shaft (14) will slowly move downward to perform a bending operation on the thin steel plate.

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