Sheet metal part bending machine with angle limiting function

Abstract

The utility model relates to the technical field of sheet metal part bending machines, and discloses a sheet metal part bending machine with an angle limiting function, which comprises a frame body and a bending table, and the surface of the bending table is fixedly connected with a locking strip and a bending die through bolts. Due to the fact that the sliding piece is in sliding connection with the surface of the bending table, when the lifting block moves downwards, the two ends of the push rod rotate to a certain degree and push the sliding piece to slide on the surface of the bending table, when the bending tool apron drives the bending tool to bend the sheet metal part, the two ends of the sheet metal part can tilt, and when the sliding piece is pushed by the push rod, the sheet metal part can be bent. The supporting plate can be pushed into the position between the warped sheet metal part and the bending die through the hinge plate and the shaft rod, the situation that the warped sheet metal part droops due to the gravity of the warped sheet metal part to generate radian is avoided, the angle between the warped sheet metal part and the bending die is limited and locked through the supporting plate, and the bending knife can conduct bending more accurately.

Description

TECHNICAL FIELD

[0001] The utility model relates to sheet metal part bending machine technical field, specifically is a sheet metal part bending machine with angle limiting function. BACKGROUND

[0002] Sheet metal part bending machine is a kind of mechanical equipment for bending processing to sheet metal, it is bent into various shapes and angles according to design requirements by exerting pressure and bending force, sheet metal part bending machine is indispensable equipment in sheet metal processing industry, it can improve production efficiency, guarantee processing quality, and provide strong support for the production of various metal products.

[0003] According to the bending machine with numerical control limited bending angle function (public number: CN216857838U) of one kind of public display, the sheet metal part is bent in the bending knife of the above-mentioned application, and the sheet metal part is bent and is raised, and the sheet metal part is lowered under the influence of its own gravity and is produced radian, to cause the precision of the sheet metal part after bending to be not accurate enough, and the elastic and ductile metal sheet metal part is also bounced when being bent, and the angle between the raised sheet metal part and the bending die is not limited in the above-mentioned application Lock, so that the bending effect can produce error. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a sheet metal part bending machine with angle limiting function to solve the problems raised in the above background.

[0005] To achieve the above object, the utility model provides the following technical scheme: a sheet metal part bending machine with angle limiting function, including frame body and bending table, the side of frame body is opened and closed with feed inlet, the surface of bending table is fixedly connected with locking strip and bending die through bolt, the inner side of frame body is provided with the protection part for preventing sheet metal part from deforming, the protection part includes:

[0006] Cylinder, the bottom surface of cylinder is fixedly connected with the top surface of frame body, the output shaft of cylinder penetrates frame body, the output shaft of cylinder is fixedly connected with bending tool seat, the side of bending tool seat is fixedly connected with positioning rod, the inner side of frame body is provided with guide groove and sliding slot, start cylinder, the output shaft of cylinder will push bending tool seat to move downward, bending tool seat will move downward stably and slowly under the assistance of positioning rod and guide groove, the bottom surface of bending tool seat is fixedly connected with bending tool, the side of bending tool seat is fixedly connected with trigger rod, the inner side of sliding slot penetrates and is slidingly connected with sliding block, the surface of sliding block is fixedly connected with lifting block, the inner side of lifting block penetrates and is hingedly connected with push rod, and torsional spring one is fixedly connected between push rod and the inner side of lifting block.

[0007] Preferably, the bottom surface of the sliding block is fixedly connected with a spring, and the bending tool seat drives the trigger rod to move downward when moving downward, and the trigger rod gradually abuts against the lifting block to move downward after moving a certain distance, and the end, away from the sliding block, of the spring is fixedly connected with the inner side of the sliding groove.

[0008] Preferably, the surface of the bending table is slidably connected with a sliding piece, and the two ends of the push rod are rotated to a certain degree and push the sliding piece to slide on the surface of the bending table when the lifting block moves downward, and the end, close to the sliding piece, of the push rod penetrates through the sliding piece and is hingedly connected.

[0009] Preferably, the top surface of the sliding piece is fixedly connected with a hinged plate, the inner side of the hinged plate penetrates through and is rotatably connected with a shaft rod, and the shaft rod penetrates through and is fixedly connected with a supporting plate, the supporting plate is pushed into the space between the bent metal piece and the bending die through the hinged plate and the shaft rod, the bent metal piece is prevented from being curved due to its own gravity, and the angle between the bent metal piece and the bending die is locked through the supporting plate.

[0010] Preferably, the surface of the sliding piece penetrates through and is threadedly connected with a screw rod, and the surface of the sliding piece is slidably connected with a pulling block.

[0011] Preferably, the surface of the pulling block penetrates through and is hingedly connected with a pulling rod, the pulling block is pulled or pushed by rotating the screw rod, the supporting plate is rotated around the center line of the shaft rod by pulling or pushing the pulling rod by the pulling block, and the pulling rod penetrates through the supporting plate and is hingedly connected.

[0012] Preferably, the bottom surface of the supporting plate is fixedly connected with a torsional spring two, and the end, away from the supporting plate, of the torsional spring two is fixedly connected with the top surface of the sliding piece.

[0013] Compared with the prior art, the metal piece bending machine with the angle limiting function has the following beneficial effects:

[0014] 1. The metal piece bending machine with the angle limiting function, since the sliding piece is slidably connected with the surface of the bending table, the two ends of the push rod are rotated to a certain degree and push the sliding piece to slide on the surface of the bending table when the lifting block moves downward, and the two ends of the bent metal piece are bent upward when the bending tool seat drives the bending tool to bend the bent metal piece, the supporting plate is pushed into the space between the bent metal piece and the bending die through the hinged plate and the shaft rod when the sliding piece is pushed by the push rod, the bent metal piece is prevented from being curved due to its own gravity, and the angle between the bent metal piece and the bending die is locked through the supporting plate, so that the bending tool can be bent more accurately.

[0015] 2. This sheet metal bending machine with angle limitation function can pull or push the pull block by rotating the screw when bending the sheet metal at different angles, so that the pull block pulls or pushes the pull rod to rotate the pallet around the center line of the shaft. When the sheet metal is bent at different angles, the bottom of the raised sheet metal can be locked. It has strong adaptability and the adjustment function is also very convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the front view structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the inner structure of the frame of the utility model;

[0018] Figure 3 This is a partial enlarged structural diagram of the inner side of the frame of the utility model;

[0019] Figure 4 This is a partially enlarged structural diagram of the lifting block of the utility model.

[0020] In the figure: 1. Frame; 2. Protective part; 21. Cylinder; 22. Bending knife seat; 23. Positioning rod; 24. Guide groove; 25. Bending knife; 26. Slide groove; 27. Slider; 28. Lifting block; 29. ​​Push rod; 210. Torsion spring 1; 211. Spring; 212. Sliding part; 213. Hinge plate; 214. Shaft; 215. Support plate; 216. Pull rod; 217. Pull block; 218. Screw; 219. Torsion spring 2; 220. Trigger rod; 3. Bending table; 4. Feed port; 5. Locking strip; 6. Bending mold. DETAILED DESCRIPTION

[0021] like Figures 1-4 As shown, the utility model provides a technical solution: a sheet metal bending machine with an angle limiting function, comprising a frame 1 and a bending table 3, a feed port 4 is opened and closed on the side of the frame 1, and a locking strip 6 and a bending mold 5 are fixedly connected to the surface of the bending table 3 by bolts, and a protective part 2 is provided on the inner side of the frame 1 to prevent deformation of the sheet metal, and the protective part 2 includes: a cylinder 21, a bending knife seat 22, a positioning rod 23, a guide groove 24, a bending knife 25, a slide 26, a slider 27, a lifting block 28, a push rod 29, a torsion spring 1 210, a spring 211, a sliding part 212, a hinged plate 213, a shaft 214, a support plate 215, a pull rod 216, a pull block 217, a screw 218, a torsion spring 219, and a trigger rod 220.

[0022] The bottom surface of the air cylinder 21 is fixedly connected with the top surface of the frame body 1, the output shaft of the air cylinder 21 penetrates the frame body 1, the output shaft of the air cylinder 21 is fixedly connected with the bending tool seat 22, the side surface of the bending tool seat 22 is fixedly connected with the positioning rod 23, the inner side of the frame body 1 is provided with the guide groove 24 and the sliding groove 26, when the metal plate is bent, the appropriate bending die 6 is selected and fixed with the locking strip 5 and the bending table 3 through the bolt, then the metal plate to be bent is placed on the bending die 6, then the air cylinder 21 is started, the output shaft of the air cylinder 21 pushes the bending tool seat 22 to move downward, the bending tool seat 22 moves downward stably and slowly under the assistance of the positioning rod 23 and the guide groove 24, the bottom surface of the bending tool seat 22 is fixedly connected with the bending tool 25, the side surface of the bending tool seat 22 is fixedly connected with the trigger rod 220, the inner side of the sliding groove 26 penetrates and is slidingly connected with the sliding block 27, the surface of the sliding block 27 is fixedly connected with the lifting block 28, the inner side of the lifting block 28 penetrates and is hingedly connected with the push rod 29, the torsional spring one 210 is fixedly connected between the inner side of the push rod 29 and the lifting block 28. The bottom surface of the sliding block 27 is fixedly connected with the spring 211, when the bending tool seat 22 moves downward, the trigger rod 220 also moves downward, after the trigger rod 220 moves a certain distance, the lifting block 28 is gradually contacted and moved downward, at this time, the lifting block 28 drives the sliding block 27 to compress the spring 211, after the bending is completed, the spring 211 drives the sliding block 27 to lift to reset the lifting block 28, one end of the spring 211 away from the sliding block 27 is fixedly connected with the inner side of the sliding groove 26. The surface of the bending table 3 is slidingly connected with the sliding part 212, because the surface of the sliding part 212 is slidingly connected with the bending table 3, when the lifting block 28 moves downward, the both ends of the push rod 29 rotate to a certain extent and push the sliding part 212 to slide on the surface of the bending table 3, one end of the push rod 29 close to the sliding part 212 penetrates the sliding part 212 and is hingedly connected.

[0023] The top surface of the sliding piece 212 is fixedly connected with a hinged plate 213, the inner side of the hinged plate 213 is penetrated and rotationally connected with a shaft rod 214, the shaft rod 214 is penetrated and fixedly connected with a supporting plate 215, when the bending tool seat 22 drives the bending tool 25 to bend the sheet metal part, the two ends of the sheet metal part will be raised, and when the sliding piece 212 is pushed by the push rod 29, the supporting plate 215 will be pushed into the sheet metal part and the bending die 6 through the hinged plate 213 and the shaft rod 214, so that the sheet metal part is prevented from being lowered due to its own gravity and generating an arc, and the angle between the sheet metal part and the bending die 6 is limited and locked through the supporting plate 215. The surface of the sliding piece 212 is penetrated and threadedly connected with a screw rod 218, and the surface of the sliding piece 212 is slidingly connected with a pulling block 217. The surface of the pulling block 217 is penetrated and hinged with a pulling rod 216, and the screw rod 218 is rotated to pull or push the pulling block 217, so that the pulling block 217 pulls or pushes the pulling rod 216 to rotate the supporting plate 215 around the center line of the shaft rod 214, and the pulling rod 216 penetrates and is hinged with the supporting plate 215. The bottom surface of the supporting plate 215 is fixedly connected with a torsional spring two 219, and the end, away from the supporting plate 215, of the torsional spring two 219 is fixedly connected with the top surface of the sliding piece 212.

[0024] Based on the above embodiment, when the sheet metal part is bent, the appropriate bending die 6 is selected and fixed with the locking strip 5 and the bending table 3 through bolts, then the sheet metal part to be bent is placed on the bending die 6, and then the cylinder 21 is started, the output shaft of the cylinder 21 pushes the bending tool seat 22 to move downward, the bending tool seat 22 moves downward stably and slowly with the assistance of the positioning rod 23 and the guide groove 24, and the trigger rod 220 also moves downward when the bending tool seat 22 moves downward, the trigger rod 220 moves a certain distance and gradually touches the lifting block 28 to move downward, at this time, the lifting block 28 drives the sliding block 27 to compress the spring 211, and after the bending is completed, the spring 211 resets the lifting block 28 by lifting the sliding block 27, because the surface of the sliding piece 212 is slidingly connected with the surface of the bending table 3, when the lifting block 28 moves downward, the two ends of the push rod 29 rotate to a certain extent and slide on the surface of the bending table 3, and when the bending tool seat 22 drives the bending tool 25 to bend the sheet metal part, the two ends of the sheet metal part will be raised, and when the sliding piece 212 is pushed by the push rod 29, the supporting plate 215 will be pushed into the sheet metal part and the bending die 6 through the hinged plate 213 and the shaft rod 214, so that the sheet metal part is prevented from being lowered due to its own gravity and generating an arc, and the angle between the sheet metal part and the bending die 6 is limited and locked through the supporting plate 215, so that the bending tool 25 bends more accurately.

[0025] When the sheet metal part is bent at different angles, the screw rod 218 can be rotated to pull or push the pull block 217, so that the pull block 217 pulls or pushes the pull rod 216 to make the supporting plate 215 rotate around the center line of the shaft rod 214, thereby locking the bottom of the raised sheet metal part when the sheet metal part is bent at different angles, and the adaptability is high, and the adjustment function is very convenient.

[0026] The utility model has been described in detail above, but some modifications or improvements can be made on the basis of the utility model, which is obvious to those skilled in the art. Therefore, without departing from the spirit of the utility model, the modifications or improvements are within the scope of the utility model.

Claims

1. A sheet metal bending machine with an angle limiting function, comprising a frame (1) and a bending table (3), characterized in that: The side of the frame (1) is provided with a feed port (4), the surface of the bending table (3) is fixedly connected with a locking strip (6) and a bending die (5) by bolts, the inner side of the frame (1) is provided with a protective portion (2) for preventing deformation of the sheet metal, the protective portion (2) comprising: a cylinder (21), the bottom surface of the cylinder (21) is fixedly connected to the top surface of the frame (1), the output shaft of the cylinder (21) passes through the frame (1), the output shaft of the cylinder (21) is fixedly connected to a bending knife seat (22), and the side of the bending knife seat (22) is fixedly connected to a positioning rod ( 23), a guide groove (24) and a slide groove (26) are provided on the inner side of the frame (1), a bending knife (25) is fixedly connected to the bottom surface of the bending knife seat (22), a trigger rod (220) is fixedly connected to the side surface of the bending knife seat (22), a slider (27) is passed through and slidably connected to the inner side of the slide groove (26), a lifting block (28) is fixedly connected to the surface of the slider (27), a push rod (29) is passed through and hinged to the inner side of the lifting block (28), and a torsion spring (210) is fixedly connected between the push rod (29) and the inner side of the lifting block (28).

2. The sheet metal bending machine with angle limiting function according to claim 1, characterized in that: A spring (211) is fixedly connected to the bottom surface of the slider (27), and one end of the spring (211) away from the slider (27) is fixedly connected to the inner side of the sliding groove (26).

3. The sheet metal bending machine with angle limiting function according to claim 1, characterized in that: The surface of the bending table (3) is slidably connected to a sliding member (212), and one end of the push rod (29) close to the sliding member (212) passes through the sliding member (212) and is hinged.

4. The sheet metal bending machine with angle limiting function according to claim 3, characterized in that: The top surface of the sliding member (212) is fixedly connected to a hinge plate (213), the inner side of the hinge plate (213) is penetrated by a shaft (214) and is rotatably connected thereto, and the shaft (214) is penetrated by and fixedly connected to a support plate (215).

5. The sheet metal bending machine with angle limiting function according to claim 4, characterized in that: A screw rod (218) is passed through and threadedly connected to the surface of the sliding member (212), and a pull block (217) is slidably connected to the surface of the sliding member (212).

6. The sheet metal bending machine with angle limiting function according to claim 5, characterized in that: A pull rod (216) passes through and is hinged to the surface of the pull block (217), and the pull rod (216) passes through the supporting plate (215) and is hinged to it.

7. The sheet metal bending machine with angle limiting function according to claim 4, characterized in that: The bottom surface of the support plate (215) is fixedly connected to a second torsion spring (219), and one end of the second torsion spring (219) away from the support plate (215) is fixedly connected to the top surface of the sliding member (212).

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