Synchronous transmission mechanism of hydraulic plate bending machine

Abstract

The hydraulic plate bending machine synchronous transmission mechanism comprises a base, limiting columns are fixedly connected to the four corners of the upper end face of the base, a top plate is arranged on the top end faces of the limiting columns, a hydraulic cylinder is fixedly connected to the middle of the upper end face of the top plate, and the middle of the outer wall of each limiting column is sleeved with a movable plate; a fixing frame is fixedly connected to the transverse central axis of the lower end face of the movable plate, a pressing block is installed in the fixing frame, a locking bolt penetrates through the front end face of the fixing frame, the tail end of the locking bolt penetrates through and extends to the rear side of the fixing frame, and a lower die base is fixedly connected to the transverse central axis of the upper end face of the base. The upper end face of the lower die base is movably connected with a lower die, longitudinal limiting devices are evenly arranged on the rear side of the upper end face of the lower die, a transverse limiting device is arranged on the left side of the upper end face of the base, and the device is simple in structure and convenient to operate and effectively improves the bending precision.

Description

Technical Field

[0001] The present disclosure specifically discloses a hydraulic bending machine technical field, and in particular relates to a synchronous transmission mechanism of a hydraulic sheet metal bending machine. Background Art

[0002] The bending machine is an important processing equipment in the hardware industry. Its function is to press the hardware materials into parts of various shapes according to the process requirements. Its structure mainly includes a bending table and a base. The workpiece to be bent is placed on the lower die of the base. The bending table drives the upper die to move downward. The upper die presses down against the workpiece to be bent, so that the workpiece to be bent is embedded in the notch of the lower die. The workpiece to be bent is bent by pressure to form the target shape.

[0003] According to application number 202022019609.7, a bending machine is disclosed, comprising a workbench, a lower die fixedly connected to the workbench, and a bending upper die located above the lower die, wherein the lower die comprises a V-shaped groove opened on the top of the lower die, and a conveying device arranged along the length direction of the V-shaped groove;

[0004] The transmission mechanism of the existing hydraulic bending machine is unstable, resulting in uneven force on the sheet metal during bending. In addition, the existing sheet metal cannot be limited during bending and cannot be processed and used, resulting in a large amount of sheet metal waste. Therefore, we propose a synchronous transmission mechanism for the hydraulic sheet metal bending machine. Summary of the invention

[0005] In view of the above-mentioned defects or deficiencies in the prior art, the present application aims to provide a structure with uniform force and limited position.

[0006] The synchronous transmission mechanism of the hydraulic sheet metal bending machine comprises a base, wherein the four corners of the upper end surface of the base are fixedly connected with limiting columns, the top surface of the limiting column is provided with a top plate, the middle part of the upper end surface of the top plate is fixedly connected with a hydraulic cylinder, the protruding end of the hydraulic cylinder extends through and extends to the lower part of the top plate and fits with the movable plate, the middle part of the outer wall of the limiting column is sleeved with a movable plate, the lower end surface of the movable plate is fixedly connected with a fixing frame at the transverse central axis, a pressure block is installed inside the fixing frame, a locking bolt is penetrated through the front end surface of the fixing frame, the end of the locking bolt extends to the rear side of the fixing frame, the lower die seat is fixedly connected with the transverse central axis of the upper end surface of the base, the upper end surface of the lower die seat is movably connected with the lower die, the rear side of the upper end surface of the lower die is evenly provided with longitudinal limiting devices, and the left side of the upper end surface of the base is provided with a transverse limiting device.

[0007] According to the technical solution provided in the embodiment of the present application, the lateral limiting device includes a limiting plate, an electric telescopic rod, a supporting plate and a fixing plate; the fixing plate is fixedly connected to the middle part of the left side of the upper end surface of the base, the electric telescopic rod is fixedly connected to the upper part of the right end surface of the fixing plate, the end of the electric telescopic rod is fixedly connected to the limiting plate, the lower part of the end of the sleeve rod of the electric telescopic rod is fixedly connected to the supporting plate, and the lower end surface of the supporting plate is fixedly connected to the upper end surface of the base.

[0008] According to the technical solution provided in the embodiment of the present application, the bottom end surface of the limiting plate is flush with the upper surface of the lower mold, and a rubber pad is bonded to the bottom end surface of the limiting plate.

[0009] According to the technical solution provided in the embodiment of the present application, the longitudinal limiting device includes a limiting piece, a waist-shaped hole and a limiting bolt. The rear side of the upper end surface of the lower mold is evenly fixedly connected to the limiting piece. The horizontal plate of the limiting piece is provided with a waist-shaped hole. The limiting bolt is installed inside the waist-shaped hole. The end of the limiting bolt extends through and into the interior of the lower mold, and the upper end surface of the limiting bolt fits into the upper end surface of the horizontal plate of the limiting piece.

[0010] According to the technical solution provided in the embodiment of the present application, sliding grooves are evenly opened on the front and rear of the upper end surface of the lower die base, and sliding bars are evenly fixedly connected to the front and rear of the lower end surface of the lower die, the sliding bars match the sliding grooves, and the sliding bars are installed inside the sliding grooves. A limiting rod is evenly penetrated on the rear side of the upper end surface of the lower die, and the end of the limiting rod extends through and into the lower die base.

[0011] According to the technical solution provided in the embodiment of the present application, a pad is fixedly connected at the center of the upper end surface of the movable plate, the pad is fixedly connected to the protruding end of the hydraulic cylinder, and a sliding sleeve is fixedly connected at the four corners of the lower end surface of the movable plate, the sliding sleeve is sleeved on the outer wall of the limiting column, and the sliding sleeve matches the limiting column.

[0012] In summary, the present application discloses a synchronous transmission mechanism for a hydraulic sheet metal bending machine.

[0013] Beneficial effects:

[0014] 1. Through the hydraulic cylinder, limit column, sliding sleeve and movable plate, the sliding sleeve cooperates with the limit column to ensure that the movable plate can be stably and normally lifted and lowered. The hydraulic cylinder is used to stamp the movable plate to ensure that the movable plate is evenly stressed, thereby ensuring that the pressure block is evenly stressed, effectively improving the bending effect.

[0015] 2. Through the lower die base, lower die, transverse limit device, longitudinal limit device and limit rod, the lower die base and the lower die are limited by the limit rod to prevent the lower die from shaking, and the electric telescopic rod and the limit plate are used to effectively limit the left side of the sheet, and the limit bolts and limit parts are used to effectively limit the back side of the sheet, thereby effectively ensuring the bending position of the sheet and improving the bending accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0017] Figure 1 It is a schematic diagram of the synchronous transmission mechanism of the hydraulic sheet metal bending machine in this application;

[0018] Figure 2 It is a right view structural schematic diagram of the synchronous transmission mechanism of the hydraulic sheet metal bending machine in this application;

[0019] Figure 3 This application Figure 1 Enlarged structural diagram at A in the middle.

[0020] In the figure: 1. base; 2. limit column; 3. top plate; 4. movable plate; 5. sliding sleeve; 6. pad; 7. hydraulic cylinder; 8. lateral limit device; 81. limit plate; 82. electric telescopic rod; 83. support plate; 84. fixed plate; 9. fixed frame; 10. pressure block; 11. locking bolt; 12. lower die seat; 13. lower die; 14. limit rod; 15. limit piece; 16. waist-shaped hole; 17. limit bolt. DETAILED DESCRIPTION

[0021] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the relevant invention, rather than to limit the invention. It is also necessary to explain that, for ease of description, only the parts related to the invention are shown in the accompanying drawings.

[0022] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0023] As mentioned in the background technology, the transmission mechanism of the hydraulic bending machine in the prior art is unstable, resulting in uneven force on the sheet metal during bending, and the existing sheet metal cannot be limited during bending and cannot be processed and used, resulting in a large amount of sheet metal waste. The present disclosure proposes a structure with uniform force and limitation.

[0024] Example 1

[0025] See also Figure 1The synchronous transmission mechanism of the hydraulic sheet metal bending machine includes a base 1. In order to ensure uniform force on the hydraulic sheet metal, limiting columns 2 are fixedly connected at the four corners of the upper end surface of the base 1, and a top plate 3 is arranged on the top surface of the limiting column 2. In order to ensure that the limiting column 2 and the top plate 3 are integrated and increase the stability of the top plate 3 and the limiting column 2, fixing devices are arranged through the four corners of the upper end surface of the top plate 3. A hydraulic cylinder 7 is fixedly connected to the middle of the upper end surface of the top plate 3, and the protruding end of the hydraulic cylinder 7 extends through and extends to the lower part of the top plate 3. In order to ensure that the pressing block 10 moves up and down normally, a movable plate 4 is sleeved in the middle of the outer wall of the limiting column 2, and the protruding end of the hydraulic cylinder 7 is in contact with the movable plate 4.

[0026] See also Figure 1 In order to ensure that the bending pressure block of the bending machine can be switched normally, a fixing frame 9 is fixedly connected to the transverse central axis of the lower end surface of the movable plate 4, a groove is arranged on the lower end surface of the fixing frame 9, and a pressure block 10 is installed inside the fixing frame 9. In order to ensure the stability of the pressure block 10, a locking bolt 11 is penetrated through the front end surface of the fixing frame 9, and the end of the locking bolt 11 extends through and extends to the rear side of the fixing frame 9, effectively ensuring the stability of the pressure block 10. In order to ensure normal bending, a lower die seat 12 is fixedly connected to the transverse central axis of the upper end surface of the base 1, and a lower die 13 is movably connected to the upper end surface of the lower die seat 12. In order to effectively limit the position of the sheet, longitudinal limiting devices are evenly arranged on the rear side of the upper end surface of the lower die 13, and a transverse limiting device 8 is arranged on the left side of the upper end surface of the base 1, which effectively ensures the bending position of the sheet.

[0027] See also Figure 2 In order to effectively ensure the position of the left side of the sheet, a lateral limiting device 8 is formed by a limiting plate 81, an electric telescopic rod 82, a supporting plate 83, and a fixing plate 84. A fixing plate 84 is fixedly connected to the middle part of the left side of the upper end surface of the base 1, and an electric telescopic rod 82 is fixedly connected to the upper right end surface of the fixing plate 84. The limiting plate 81 is fixedly connected to the end of the electric telescopic rod 82. In order to ensure the stability of the limiting plate 81 and the electric telescopic rod 82, a supporting plate 83 is fixedly connected to the lower part of the sleeve rod end of the electric telescopic rod 82, and the lower end surface of the supporting plate 83 is fixedly connected to the upper end surface of the base 1.

[0028] See also Figure 2 In order to effectively ensure the position of the left side of the sheet, the bottom end surface of the limit plate 81 is flush with the lower mold 13, and a rubber pad is bonded to the lower end surface of the limit plate 81 to avoid scratches on the upper end surface of the limit plate 83. At the same time, it effectively prevents the sheet from extending out of the left side of the limit plate 81, making it impossible to determine the bending position of the sheet.

[0029] See also Figure 3In order to ensure the position of the rear side of the sheet metal after bending, a longitudinal limiting device is formed by a limiting member 15, a waist-shaped hole 16 and a limiting bolt 17. The limiting member 15 is evenly fixedly connected to the rear side of the upper end surface of the lower mold 13, and the limiting member 15 is an L-shaped structure, and the vertical plate of the limiting member 15 is facing forward. A waist-shaped hole 16 is opened in the horizontal plate of the limiting member 15, and the waist-shaped hole 16 is longitudinally arranged. A limiting bolt 17 is installed inside the waist-shaped hole 16, and the end of the limiting bolt 17 extends through the lower mold 13, and the upper end surface of the limiting bolt 17 is in contact with the upper end surface of the horizontal plate of the limiting member 15.

[0030] See also Figure 2 In order to facilitate the replacement of the lower mold 13, sliding grooves are evenly opened on the front and rear of the upper end surface of the lower mold base 12, and sliding bars are evenly fixedly connected to the front and rear of the lower end surface of the lower mold 13. The sliding bars match the sliding grooves and are installed inside the sliding grooves. In order to further fix the lower mold 13, a limiting rod 14 is evenly penetrated on the rear side of the upper end surface of the lower mold 13, and the end of the limiting rod 14 extends through the lower mold base 12 to effectively prevent the lower mold 13 from sliding.

[0031] Example 2

[0032] See also Figure 1 In order to ensure that the movable plate 4 moves up and down normally, a cushion block 6 is fixedly connected at the center of the upper end surface of the movable plate 4, and the cushion block 6 is fixedly connected to the protruding end of the hydraulic cylinder 7, and a sliding sleeve 5 is fixedly connected at the four corners of the lower end surface of the movable plate 4, and the sliding sleeve 5 is sleeved on the outer wall of the limiting column 2, and the sliding sleeve 5 matches the limiting column 2, which effectively improves the lubrication efficiency of the lifting and lowering of the movable plate 4.

[0033] Working principle: When in use, the pressure block 10 is installed inside the fixed frame 9, and the locking bolt 11 is used to penetrate the pressure block 10 and lock it to complete the installation of the pressure block 10, and then the corresponding lower mold 13 is installed on the upper part of the lower mold base 12, and the limiting rod 14 is used to penetrate the limiting hole to effectively ensure the stability of the lower mold 13. According to the requirements of sheet bending, an external power supply is used to connect and start the electric telescopic rod 82. The electric telescopic rod 82 is extended and retracted to drive the limiting plate 81 to move left and right, thereby limiting the left side of the sheet. At the same time, the limiting bolt 17 is loosened and the position of the limiting member 15 is adjusted. After the bending requirements are met, the limiting bolt 17 is tightened again to limit the rear side of the sheet, and the oil pump is started to supply fluid to the hydraulic cylinder 7. The protruding end of the hydraulic cylinder 7 is pressed downward to bend the sheet.

[0034] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept. For example, the above features are replaced with the technical features with similar functions disclosed in this application (but not limited to) by each other.

Claims

1. A synchronous transmission mechanism for a hydraulic sheet metal bending machine, comprising a base (1), characterized in that: The four corners of the upper end surface of the base (1) are fixedly connected to the limiting column (2), the top end surface of the limiting column (2) is provided with a top plate (3), the middle part of the upper end surface of the top plate (3) is fixedly connected to a hydraulic cylinder (7), the extended end of the hydraulic cylinder (7) extends through the lower part of the top plate (3) and fits with the movable plate (4), the middle part of the outer wall of the limiting column (2) is sleeved with the movable plate (4), the lower end surface of the movable plate (4) is fixedly connected to a fixing frame (9) at the transverse central axis, and the fixing frame (9) has a plurality of inner and outer ends. A pressure block (10) is installed at the top, a locking bolt (11) is provided through the front end surface of the fixing frame (9), the end of the locking bolt (11) extends through the rear side of the fixing frame (9), a lower die seat (12) is fixedly connected to the transverse center axis of the upper end surface of the base (1), a lower die (13) is movably connected to the upper end surface of the lower die seat (12), longitudinal limiting devices are evenly provided on the rear side of the upper end surface of the lower die (13), and a transverse limiting device (8) is provided on the left side of the upper end surface of the base (1).

2. The synchronous transmission mechanism of the hydraulic sheet metal bending machine according to claim 1 is characterized in that: The transverse limiting device (8) comprises a limiting plate (81), an electric telescopic rod (82), a supporting plate (83) and a fixing plate (84); the fixing plate (84) is fixedly connected to the middle of the left side of the upper end surface of the base (1); the upper part of the right end surface of the fixing plate (84) is fixedly connected to the electric telescopic rod (82); the end of the electric telescopic rod (82) is fixedly connected to the limiting plate (81); the lower part of the end of the sleeve rod of the electric telescopic rod (82) is fixedly connected to the supporting plate (83); and the lower end surface of the supporting plate (83) is fixedly connected to the upper end surface of the base (1).

3. The synchronous transmission mechanism of the hydraulic sheet metal bending machine according to claim 2 is characterized in that: The bottom end surface of the limiting plate (81) is flush with the lower mold (13), and a rubber pad is bonded to the bottom end surface of the limiting plate (81).

4. The synchronous transmission mechanism of the hydraulic sheet metal bending machine according to claim 1, characterized in that: The longitudinal limiting device comprises a limiting piece (15), a waist-shaped hole (16) and a limiting bolt (17); the rear side of the upper end surface of the lower mold (13) is evenly fixedly connected to the limiting piece (15); a waist-shaped hole (16) is provided on a transverse plate of the limiting piece (15); a limiting bolt (17) is installed inside the waist-shaped hole (16); the end of the limiting bolt (17) extends through and into the lower mold (13); the upper end surface of the limiting bolt (17) fits the upper end surface of the transverse plate of the limiting piece (15).

5. The synchronous transmission mechanism of the hydraulic sheet metal bending machine according to claim 1, characterized in that: The upper end surface of the lower die seat (12) is uniformly provided with slide grooves on the front and rear sides, and the lower end surface of the lower die (13) is uniformly fixedly connected with slide bars on the front and rear sides, and the slide bars match the slide grooves and are installed inside the slide grooves. A limiting rod (14) is uniformly penetrated on the rear side of the upper end surface of the lower die (13), and the end of the limiting rod (14) extends through the interior of the lower die seat (12).

6. The synchronous transmission mechanism of the hydraulic plate bending machine according to claim 1, characterized in that: A cushion block (6) is fixedly connected at the center of the upper end surface of the movable plate (4), and the cushion block (6) is fixedly connected to the protruding end of the hydraulic cylinder (7). Sliding sleeves (5) are fixedly connected at the four corners of the lower end surface of the movable plate (4), and the sliding sleeves (5) are sleeved on the outer wall of the limiting column (2), and the sliding sleeves (5) match the limiting column (2).

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