Metal door frame bending machine

Abstract

The utility model discloses a kind of metal door frame bending machine, it is related to bending machine field, including device main body, the material blocking mechanism is provided in device main body rear side, positioning mechanism is provided on device main body, overturning mechanism is provided in device main body front side, overturning mechanism includes connecting bracket, connecting bracket front side is rotatably connected with overturning bracket, overturning bracket front end is rotatably connected with placing table, the upper surface of placing table is equipped with a plurality of vacuum chuck, overturning bracket front end is fixed with second bevel gear, first bevel gear is fixedly connected in the middle of placing table bottom, first bevel gear is engaged with second bevel gear. Advantageous effect lies in: by the setting of overturning mechanism, overturning bracket rotates, placing table overturning is realized by the cooperation of first bevel gear and second bevel gear in the process, so as to realize the flanging of metal plate, thereby greatly reduce the physical consumption of staff in long-time bending work process, guarantee the production efficiency of bending work.

Description

Technical Field

[0001] This utility model relates to the field of bending machines, and in particular to a metal door frame bending machine. Background Technology

[0002] A bending machine, also known as a press bending machine, is a press machine that uses mechanical or hydraulic operation. Currently, in the production of various metal sheets, bending machines are required to process the shape of the sheets. For example, in the production of door structures, metal sheets are usually bent into U-shaped blanks to facilitate their assembly on one side of the door structure.

[0003] For example, patent document CN222447799U discloses a metal door frame bending machine, including a frame, a punching die structure, a punching die head, and a hydraulic lifting device. The punching die structure, the punching die head, and the hydraulic lifting device are mounted on the frame. The device also has an adjustment mechanism mounted on the frame. The adjustment mechanism has a movable clamping end and a drive module for controlling the movement and rotation of the clamping end. After the sheet metal is punched, the adjustment mechanism can use the clamping end to fix both ends of the sheet metal in the punching area and drive the sheet metal to rotate to adjust the force-bearing surface of the sheet metal, so as to realize machine replacement of manual work and ensure production efficiency.

[0004] In the existing technology, during the process of bending metal sheets into metal door frames, operators need to constantly flip the metal sheets. Since the metal sheets have a certain weight, after a long period of bending operations, the operators' physical strength is greatly exhausted, their concentration is reduced, and the accuracy of the bending operation is affected. They must take a break, which slows down production efficiency. Utility Model Content

[0005] The purpose of this invention is to provide a metal door frame bending machine to solve the above-mentioned problems.

[0006] This utility model achieves the above objectives through the following technical solutions:

[0007] A metal door frame bending machine includes a main body, a material blocking mechanism at the rear of the main body, a positioning mechanism on the main body, and a flipping mechanism at the front of the main body. The flipping mechanism includes a connecting bracket, a flipping bracket rotatably connected to the front of the connecting bracket, the flipping bracket being U-shaped, a driven gear fixedly connected to the rear end of the flipping bracket, a motor fixedly connected to the bottom of the connecting bracket, a driving gear fixedly connected to the output end of the motor, the driving gear meshing with the driven gear, a placement platform rotatably connected to the front end of the flipping bracket, the placement platform being U-shaped, several vacuum suction cups mounted on the upper surface of the placement platform, a second bevel gear fixedly connected to the front end of the flipping bracket, and a first bevel gear fixedly connected to the middle of the bottom of the placement platform, the first bevel gear meshing with the second bevel gear.

[0008] Preferably, the main body of the device includes a main support frame, a hydraulic telescopic component is fixedly connected to the top of the main support frame, a plurality of bending knives are fixedly connected to the bottom of the hydraulic telescopic component, a bending die is fixedly connected to the top of the main support frame, the bending die and the bending knives are symmetrically arranged, two symmetrically arranged first slide rails are fixedly connected to the rear side of the main support frame, and the front end of the main support frame is fixedly connected to a connecting bracket.

[0009] Preferably, the material blocking mechanism includes a hydraulic telescopic rod fixedly connected to the main support, a sliding frame fixedly connected to the output end of the hydraulic telescopic rod, the sliding frame being slidably connected to the first slide rail, a second slide rail fixedly connected to the top of the sliding frame, a fixed frame movably connected to the second slide rail, a material blocking rod fixedly connected to the front end of the fixed frame, the fixed frame being fixed to the second slide rail by a limiting bolt, and the material blocking rod being configured as a stepped shaft.

[0010] Preferably, the positioning mechanism includes a third slide rail fixedly connected to the front side of the top of the main support, a multi-faceted rotating shaft provided on the rear side of the third slide rail, the multi-faceted rotating shaft being rotatably connected to the main support, a positioning frame slidably connected on the third slide rail, the positioning frame being limited on the third slide rail by bolts, a telescopic sensor slidably connected in the middle of the positioning frame, a screw rotatably connected in the middle of the positioning frame, the telescopic sensor being threadedly connected to the screw, a rotating frame rotatably connected to the telescopic end of the telescopic sensor, two abutting rotating shafts rotatably connected on one side of the rotating frame, the abutting rotating shafts contacting the metal plate, and the multi-faceted rotating shaft being slidably connected to the screw.

[0011] Preferably, a linkage gear is fixedly connected to one end of the multi-faceted rotating shaft, a linkage rack meshes with one side of the linkage gear, the linkage rack is slidably connected to one side of the main support, a push plate is provided on one side of the linkage rack, a Z-shaped groove is provided on the push plate, the Z-shaped groove on the push plate is slidably connected to the linkage rack, and an L-shaped connecting rod is fixedly connected to the top of the push plate, the L-shaped connecting rod is fixedly connected to one side of the output end of the hydraulic telescopic component.

[0012] Preferably, a pointer is fixedly connected to one end of the rotating frame, and an arc-shaped scale is fixedly connected to the telescopic end of the telescopic sensor.

[0013] The beneficial effects are:

[0014] 1. By setting up a flipping mechanism, the placement platform is flipped through the cooperation of the first bevel gear and the second bevel gear during the rotation of the flipping bracket, thus achieving the flipping of the metal sheet. This greatly reduces the physical exertion of workers during long-term bending work and ensures the production efficiency of bending work.

[0015] 2. By setting up a positioning mechanism, when bending, one end of the metal sheet tilts up, causing the telescopic sensor to rise and fall. The degree of displacement generated by the telescopic sensor can display the degree of bending of the metal sheet. Furthermore, the cooperation between the arc-shaped dial and the L-shaped connecting rod can directly display the bending angle, making it easier for operators to observe the degree of bending, reducing reliance on the operator's experience, and promoting the standardization of workpieces.

[0016] The additional technical features and advantages of this utility model will become more apparent from the following description, or may be learned through specific practice of this utility model. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the following detailed description to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0018] Figure 1 This is a perspective view of a metal door frame bending machine according to the present invention;

[0019] Figure 2 This is a left view of a metal door frame bending machine according to the present invention;

[0020] Figure 3 This is a perspective view of the main structure of the metal door frame bending machine described in this utility model;

[0021] Figure 4 This is a three-dimensional view of the material pushing mechanism structure of a metal door frame bending machine according to the present invention;

[0022] Figure 5 yes Figure 2 Enlarged view of point A in the middle;

[0023] Figure 6 This is a three-dimensional view of the flipping mechanism structure of a metal door frame bending machine according to the present invention;

[0024] Figure 7 This is a three-dimensional view of the positioning mechanism structure of the metal door frame bending machine described in this utility model;

[0025] Figure 8 yes Figure 7 Enlarged view of point B in the middle;

[0026] Figure 9 This is a perspective view of the relative positions of the screw and the positioning frame of the metal door frame bending machine described in this utility model.

[0027] The annotations in the attached figures are explained as follows:

[0028] 101. Main support frame; 102. Hydraulic telescopic assembly; 103. Bending knife; 104. First slide rail; 105. Bending die; 201. Hydraulic telescopic rod; 202. Sliding frame; 203. Second slide rail; 204. Fixing frame; 205. Material stop bar; 301. Connecting bracket; 302. Tilting bracket; 303. Driven gear; 304. Motor; 305. Driven gear; 306. Placement platform; 3 07. Vacuum suction cup; 308. First bevel gear; 309. Second bevel gear; 401. Third slide rail; 402. Multi-faceted rotating shaft; 403. Positioning frame; 404. Telescopic sensor; 405. Screw; 406. Rotating frame; 407. Abutting rotating shaft; 408. Linking gear; 409. Linking rack; 410. Push plate; 411. L-shaped connecting rod; 412. Arc-shaped dial; 413. Pointer. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0030] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0031] The present invention will be further described below with reference to the accompanying drawings:

[0032] like Figures 1-9As shown, a metal door frame bending machine includes a main body, a material blocking mechanism at the rear of the main body, a positioning mechanism on the main body, and a flipping mechanism at the front of the main body. The flipping mechanism includes a connecting bracket 301, a flipping bracket 302 rotatably connected to the front bearing of the connecting bracket 301, the flipping bracket 302 being U-shaped, a driven gear 303 keyed to the rear end of the flipping bracket 302, a motor 304 bolted to the bottom of the connecting bracket 301, the motor 304 being a servo motor with a self-locking function (existing technology, not described in detail here), a drive gear 305 fixedly connected to the output end of the motor 304, the drive gear 305 meshing with the driven gear 303, and a placement platform 306 rotatably connected to the front bearing of the flipping bracket 302, the placement platform 306 being U-shaped, and several vacuum suction cups 307 mounted on the upper surface of the placement platform 306, each vacuum suction cup 307 being externally connected to a vacuum pumping device (existing technology, not described in detail here). The front end of the flipping bracket 302 is bolted to a second bevel gear 309, and the bottom center of the placement platform 306 is fixedly connected to a first bevel gear 308. The first bevel gear 308 meshes with the second bevel gear 309. The operator places the metal sheet on the placement platform 306, and the vacuum suction cup 307 picks up the metal sheet. Then, the motor 304 drives the drive gear 305 to rotate, which in turn drives the driven gear 303 to rotate. The driven gear 303 drives the flipping bracket 302 to rotate, which in turn drives the placement platform 306 to rotate. During the rotation of the placement platform 306, the first bevel gear 308 rotates. The first bevel gear 308 meshes with the second bevel gear 309. Thus, when the placement platform 306 revolves, the first bevel gear 308 drives the placement platform 306 to rotate on its own axis. This achieves the flipping of the metal sheet, thereby greatly reducing the physical exertion of the workers during long-term bending operations and ensuring the production efficiency of the bending work.

[0033] The main body of the device includes a main support 101. A hydraulic telescopic component 102 is fixedly connected to the top of the main support 101. Several bending blades 103 are fixedly connected to the bottom of the hydraulic telescopic component 102. A bending die 105 is fixedly connected to the top of the main support 101. The bending die 105 and the bending blades 103 are symmetrically arranged. Two symmetrically arranged first slide rails 104 are fixedly connected to the rear side of the main support 101. The front end of the main support 101 is fixedly connected to the connecting bracket 301. The control method of several driving components in this application adopts a commercially available CNC system, which belongs to the prior art and will not be described in detail here. The worker places the bending position of the metal sheet on the bending die 105. Then the hydraulic telescopic component 102 drives the bending blades 103 to descend. The bending blades 103 cooperate with the bending die 105 to bend the metal sheet.

[0034] The material-stopping mechanism includes a hydraulic telescopic rod 201 fixedly connected to the main support 101. A sliding frame 202 is fixedly connected to the output end of the hydraulic telescopic rod 201. The sliding frame 202 is slidably connected to the first slide rail 104. A second slide rail 203 is fixedly connected to the top of the sliding frame 202. A fixed frame 204 is movably connected to the second slide rail 203. A material-stopping rod 205 is fixedly connected to the front end of the fixed frame 204. The fixed frame 204 is fixed to the second slide rail 203 by limiting bolts. The material-stopping rod 205 is set as a stepped shaft. When bending the metal sheet, in order to ensure the accuracy of the bending position, the sliding frame 202 is driven to move on the first slide rail 104 by the hydraulic telescopic rod 201. The sliding frame 202 drives the second slide rail 203 to move. The second slide rail 203 drives several fixed frames 204 to move. The fixed frames 204 drive the material-stopping rod 205 to the material-stopping position, thereby limiting the bending position of the metal sheet and ensuring the accuracy of the bending.

[0035] The positioning mechanism includes a third slide rail 401 fixedly connected to the front top of the main support 101. A multi-faceted rotating shaft 402 is provided at the rear of the third slide rail 401, and the multi-faceted rotating shaft 402 is rotatably connected to the main support 101. A positioning frame 403 is slidably connected to the third slide rail 401, and the positioning frame 403 is limited on the third slide rail 401 by bolts. A telescopic sensor 404 is slidably connected in the middle of the positioning frame 403. A screw 405 is rotatably connected to the middle bearing of the positioning frame 403. The telescopic sensor 404 is threadedly connected to the screw 405. A rotating frame 406 is hinged to the telescopic end of the telescopic sensor 404. Two abutting rotating shafts 407 are rotatably connected to one side of the rotating frame 406. The abutting rotating shafts 407 contact the metal plate. The multi-faceted rotating shaft 402 is slidably connected to the screw 405. In the prior art, the metal plate... The control of bending degree mainly relies on the cooperation between the CNC system and the operator's processing experience. It lacks intuitive detection and is not convenient for standardization of processing. Therefore, by placing the positioning frame 403 near the processing position of the metal sheet and fixing it to the third slide rail 401 with bolts, the polygonal shaft 402 rotates when the bending cutter 103 descends. The polygonal shaft 402 drives the screw 405 to rotate. The screw 405 drives the telescopic sensor 404 to move towards the center through the threaded connection. Then, when bending, the metal sheet is raised, which drives the abutment shaft 407 to rise. The abutment shaft 407 drives the rotating frame 406 to rise. During this process, the rotating frame 406 has a certain deflection. The rotating frame 406 drives the telescopic end of the telescopic sensor 404 to move. At this time, an electrical signal is generated. The CNC system matched with the bending machine can sense the bending degree through this signal.

[0036] One end of the multi-faceted rotating shaft 402 is fixedly connected to a connecting gear 408. A connecting rack 409 meshes with one side of the connecting gear 408. The connecting rack 409 is slidably connected to one side of the main support 101. A push plate 410 is provided on one side of the connecting rack 409. A Z-shaped groove is provided on the push plate 410. The Z-shaped groove on the push plate 410 is slidably connected to the connecting rack 409. An L-shaped connecting rod 411 is fixedly connected to the top of the push plate 410. The L-shaped connecting rod 411 is fixedly connected to one side of the output end of the hydraulic telescopic component 102. When the hydraulic telescopic component 102 descends, it drives the L-shaped connecting rod 411 to descend. The L-shaped connecting rod 411 drives the push plate 410 to descend. The push plate 410 drives the connecting rack 409 to move through the groove. The connecting rack 409 drives the connecting gear 408 to rotate. The connecting gear 408 drives the multi-faceted rotating shaft 402 to rotate.

[0037] A pointer 413 is fixedly connected to one end of the rotating frame 406, and an arc-shaped scale 412 is fixedly connected to the telescopic end of the telescopic sensor 404. When the metal plate is raised, the rotating frame 406 drives the pointer 413 to rotate, and the pointer 413 points to the scale on the arc-shaped scale 412, so that the operator can observe the angle of the metal plate being raised.

[0038] Working principle: The operator places the metal sheet at the bending position on the bending die 105. Then, the hydraulic telescopic component 102 drives the bending cutter 103 to descend. The bending cutter 103 cooperates with the bending die 105 to bend the metal sheet. To ensure the accuracy of the bending position, the hydraulic telescopic rod 201 drives the sliding frame 202 to move on the first slide rail 104. The sliding frame 202 drives the second slide rail 203 to move, and the second slide rail 203 drives several fixed frames 204 to move. The fixed frames 204 drive the stop rod 205 to the stop position, thereby limiting the bending position of the metal sheet and ensuring the accuracy of the bending. The degree of bending of the metal sheet is mainly controlled by… Relying on the combination of CNC system and operator's machining experience, the lack of intuitive inspection makes it inconvenient to standardize the machining process. Therefore, by placing the positioning frame 403 near the metal sheet machining position and fixing it to the third slide rail 401 with bolts, the hydraulic telescopic component 102 descends, driving the L-shaped connecting rod 411 to descend. The L-shaped connecting rod 411 drives the push plate 410 to descend. The push plate 410 drives the linkage rack 409 to move through the slide groove. The linkage rack 409 drives the linkage gear 408 to rotate. The linkage gear 408 drives the multi-faceted rotating shaft 402 to rotate. The multi-faceted rotating shaft 402 drives the screw 405 to rotate. The screw 405 drives the extension through the threaded connection. The compression sensor 404 moves towards the center, and then the metal sheet warps up during bending, causing the contact shaft 407 to rise. The contact shaft 407 then drives the rotating frame 406 to rise. During this process, the rotating frame 406 deflects to a certain extent, causing the pointer 413 to rotate. The pointer 413 points to the scale on the arc-shaped dial 412, allowing the operator to observe the warping angle of the metal sheet. The rotating frame 406 drives the extension end of the telescopic sensor 404 to move, generating an electrical signal. The CNC system of the bending machine can then sense the degree of bending. When it is necessary to flip the metal sheet, the operator places it on the placement table 306, and the vacuum suction cup 30... 7. The metal sheet is adsorbed, and then the motor 304 drives the drive gear 305 to rotate. The drive gear 305 drives the driven gear 303 to rotate, and the driven gear 303 drives the flipping bracket 302 to rotate. The flipping bracket 302 drives the placement table 306 to rotate. During the rotation of the placement table 306, the first bevel gear 308 rotates. The first bevel gear 308 meshes with the second bevel gear 309. So when the placement table 306 revolves, the first bevel gear 308 drives the placement table 306 to rotate on its own axis. In this way, the metal sheet is flipped, which greatly reduces the physical exertion of the workers during long-term bending work and ensures the production efficiency of bending work.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A metal door frame bending machine, comprising a main body, wherein a material-stopping mechanism is provided at the rear side of the main body, characterized in that: The main body of the device is provided with a positioning mechanism, and the front side of the main body of the device is provided with a flipping mechanism. The flipping mechanism includes a connecting bracket (301), and a flipping bracket (302) is rotatably connected to the front side of the connecting bracket (301). The flipping bracket (302) is U-shaped, and a driven gear (303) is fixedly connected to the rear end of the flipping bracket (302). A motor (304) is fixedly connected to the bottom of the connecting bracket (301), and a driving gear (305) is fixedly connected to the output end of the motor (304). (305) meshes with the driven gear (303). The front end of the flipping bracket (302) is rotatably connected to a placement platform (306). The placement platform (306) is U-shaped. Several vacuum suction cups (307) are installed on the upper surface of the placement platform (306). The front end of the flipping bracket (302) is fixedly connected to a second bevel gear (309). The bottom middle of the placement platform (306) is fixedly connected to a first bevel gear (308). The first bevel gear (308) meshes with the second bevel gear (309).

2. The metal door frame bending machine according to claim 1, characterized in that: The main body of the device includes a main support (101), a hydraulic telescopic assembly (102) is fixedly connected to the top of the main support (101), a plurality of bending blades (103) are fixedly connected to the bottom of the hydraulic telescopic assembly (102), a bending mold (105) is fixedly connected to the top of the main support (101), the bending mold (105) and the bending blades (103) are symmetrically arranged, two symmetrically arranged first slide rails (104) are fixedly connected to the rear side of the main support (101), and the front end of the main support (101) is fixedly connected to the connecting bracket (301).

3. A metal door frame bending machine according to claim 2, characterized in that: The material blocking mechanism includes a hydraulic telescopic rod (201) fixedly connected to the main support (101). A sliding frame (202) is fixedly connected to the output end of the hydraulic telescopic rod (201). The sliding frame (202) is slidably connected to the first slide rail (104). A second slide rail (203) is fixedly connected to the top of the sliding frame (202). A fixed frame (204) is movably connected to the second slide rail (203). A material blocking rod (205) is fixedly connected to the front end of the fixed frame (204). The fixed frame (204) is fixed on the second slide rail (203) by a limiting bolt. The material blocking rod (205) is set as a stepped shaft.

4. A metal door frame bending machine according to claim 2, characterized in that: The positioning mechanism includes a third slide rail (401) fixedly connected to the front top of the main support (101). A multi-faceted rotating shaft (402) is provided on the rear side of the third slide rail (401). The multi-faceted rotating shaft (402) is rotatably connected to the main support (101). A positioning frame (403) is slidably connected to the third slide rail (401). The positioning frame (403) is limited on the third slide rail (401) by bolts. A slidably connected component is located in the middle of the positioning frame (403). The telescopic sensor (404) is rotatably connected to the positioning frame (403) with a screw (405) in the middle. The telescopic sensor (404) is threadedly connected to the screw (405). The telescopic end of the telescopic sensor (404) is rotatably connected to a rotating frame (406). Two abutting shafts (407) are rotatably connected to one side of the rotating frame (406). The abutting shafts (407) are in contact with the metal plate. The multi-faceted shaft (402) is slidably connected to the screw (405).

5. A metal door frame bending machine according to claim 4, characterized in that: One end of the multi-faceted rotating shaft (402) is fixedly connected to a connecting gear (408), and a connecting rack (409) meshes with one side of the connecting gear (408). The connecting rack (409) is slidably connected to one side of the main support (101). A push plate (410) is provided on one side of the connecting rack (409). A Z-shaped groove is provided on the push plate (410). The Z-shaped groove on the push plate (410) is slidably connected to the connecting rack (409). An L-shaped connecting rod (411) is fixedly connected to the top of the push plate (410). The L-shaped connecting rod (411) is fixedly connected to one side of the output end of the hydraulic telescopic assembly (102).

6. A metal door frame bending machine according to claim 4, characterized in that: A pointer (413) is fixedly connected to one end of the rotating frame (406), and an arc-shaped dial (412) is fixedly connected to the telescopic end of the telescopic sensor (404).

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