A guillotine shear upper knife box assembly

Abstract

The utility model discloses a kind of upper knife box devices of plate shearing machine, belong to plate shearing machine accessory technical field, including upper tool rest, upper knife box and blade, the blade is arranged in upper knife box, the upper knife box is arranged in upper tool rest, the blade is installed in upper knife box by internal fixed screw, upper knife box is set with placing groove to upper tool rest one side side wall, upper knife box fixed screw is arranged in the placing groove, upper tool rest side wall is set with perforation, upper knife box fixed screw passes through perforation, nut is arranged on upper knife box fixed screw, nut side wall and upper tool rest back to upper knife box one side side wall abut. By the fixed mode in the application, since nut is arranged in upper rack machine body outside, even in high temperature condition also have method to remove nut, to replace upper knife box.

Description

Technical Field

[0001] This utility model belongs to the technical field of shearing machine accessories, and in particular relates to a shearing machine upper blade box device. Background Technology

[0002] Shearing machines are essential equipment in sheet metal factories, primarily used for cutting and processing sheet metal. They can cut sheet metal to specific dimensions and shapes. Shearing machines cut sheet metal using shearing force, which is generated by the interaction between the cutting blade and the cutting table. In a shearing machine, the cutting blade is located at the top, the cutting table at the bottom, and the sheet metal is sandwiched between them. By pressing down with the upper cutting blade, the sheet metal is pressed onto the cutting table, simultaneously generating a shearing force that cuts the sheet metal into the desired shape and size.

[0003] Shearing machine blades need to be replaced regularly, generally every 10 days or so. The blades are mounted on a blade holder, which in turn is mounted on the upper blade holder. In low-temperature shearing machines, a hydraulic locking cylinder secures the blade holder to the blade holder. However, in slitting shears installed after straightening machines, where the steel plate temperature reaches 600 degrees Celsius, the hydraulic cylinder cannot be used for locking due to the high temperature, as this would easily damage the cylinder seal. Furthermore, the blade holder cannot be secured with threaded screws because the high temperature would make the threads difficult to remove.

[0004] To address this issue, we propose a blade box device for a shearing machine. Utility Model Content

[0005] The purpose of this utility model is to solve the problems in the prior art by proposing a shearing machine upper knife box device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A shearing machine upper blade box device includes an upper blade holder, an upper blade box, and blades. The blades are installed in the upper blade box, and the upper blade box is installed in the upper blade holder. The blades are installed in the upper blade box by internal fixing screws. The upper blade box has a placement groove on the side wall facing the upper blade holder, and an upper blade box fixing screw is installed in the placement groove. The side wall of the upper blade holder has a through hole, through which the upper blade box fixing screw passes. A nut is installed on the upper blade box fixing screw, and the side wall of the nut abuts against the side wall of the upper blade holder opposite to the upper blade box.

[0008] Preferably, the upper tool box fixing screw includes an anti-rotation boss, a screw head, and a screw body. The screw head is fixedly disposed on the end face of the screw body, the anti-rotation boss is fixedly disposed on the side wall of the screw body, and the side wall of the screw body away from the screw head is provided with threads, and the end face of the threads is provided with grooves.

[0009] Preferably, the screw head is an elongated block, the anti-rotation boss is oriented in the same direction as the long end of the screw head, and the groove is also oriented in the same direction as the long end of the screw head.

[0010] Preferably, a marking line is provided on the end face of the screw head away from the screw body, and the direction of the marking line is consistent with the direction of the long end of the screw head.

[0011] Preferably, a positioning washer is provided between the side wall of the nut and the side wall of the upper tool holder, and a through hole is provided in the positioning washer, through which the screw body passes.

[0012] Preferably, the placement groove is provided with an anti-rotation groove, and the shape of the anti-rotation groove is consistent with the shape of the anti-rotation boss.

[0013] In summary, the technical effects and advantages of this utility model are as follows:

[0014] Because the nut is located outside the upper tool holder body, even if the upper tool holder is hot, the nut can be removed to replace the upper tool box and the blades together. Moreover, this method is less costly, as the hydraulic cylinders in current replacement solutions are prone to damage under prolonged high temperatures. Furthermore, the upper tool holder will not fall using the fixing method described in this application, whereas with common hydraulic cylinder solutions, the upper tool holder can easily fall if the hydraulic cylinder is not securely locked, posing a safety hazard. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the structural connection of the upper knife box fixing screw in this utility model;

[0017] Figure 3 This is a structural diagram illustrating the process of fixing the upper knife box in this utility model;

[0018] Figure 4 This is a schematic diagram of the structural connection of the positioning pad in this utility model;

[0019] Figure 5 This is a schematic diagram of the hole between the upper tool holder and the upper tool box in this utility model.

[0020] In the diagram: 1. Upper tool holder; 2. Upper tool box; 3. Blade; 4. Placement slot; 5. Through hole; 6. Nut; 7. Anti-rotation boss; 8. Screw head; 9. Screw body; 10. Thread; 11. Groove; 12. Marking line; 13. Positioning washer; 14. Through hole; 15. Anti-rotation groove; 16. Internal fixing screw. Detailed Implementation

[0021] 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.

[0022] like Figure 1 - Figure 5 As shown, a shearing machine upper blade box device includes an upper blade holder 1, an upper blade box 2, and a blade 3. The blade 3 is installed in the upper blade box 2, and the upper blade box 2 is installed in the upper blade holder 1. The blade 3 is installed in the upper blade box 2 by internal fixing screws 16. The upper blade box 2 has a placement groove 4 on the side wall facing the upper blade holder 1, and the upper blade box fixing screw is installed in the placement groove 4.

[0023] from Figure 5 As can be seen, the placement slot 4 can be divided into holes F and D. Hole F is a vertical square hole inside the upper tool holder 1, with a hole thickness of 50mm. Because the screw head 8 is 40mm thick and the anti-rotation boss 7 is 6mm thick, the hole thickness needs to be greater than the sum of the two, 46mm. The hole height is 125mm from the center of the screw upwards, which is required by the machining process; downwards from the center, the machining depth is 50mm. The radius of the screw head 8 is 44mm, and a 6mm space margin is also required, so the total height is 175mm. Hole D is also a square hole. This hole is machined on the upper tool holder 1, and a small groove is machined in the lower center, with a width of 10mm and a depth of 8mm.

[0024] The upper tool box fixing screw includes an anti-rotation boss 7, a screw head 8, and a screw body 9. The screw head 8 is fixedly set on the end face of the screw body 9, and the anti-rotation boss 7 is fixedly set on the side wall of the screw body 9. An anti-rotation groove 15 is opened in the placement groove 4. The shape of the anti-rotation groove 15 is consistent with the shape of the anti-rotation boss 7. When the upper tool box fixing screw is rotated into place, the anti-rotation boss 7 will be inserted into the anti-rotation groove 15.

[0025] A thread 10 is installed on the side wall of the screw body 9 away from the screw head 8. A groove 11 is opened on the end face of the thread 10. The groove 11 is 4mm wide and 2mm deep. The thread 10 is M30. The groove 11 is approximately elliptical in shape. The purpose of this is to make it easier for workers to know the direction of the long end of the screw head 8 when assembling the screw.

[0026] The screw head 8 is an elongated oval block. The anti-rotation boss 7 is aligned with the long end of the screw head 8. When the screw is tightened, the anti-rotation boss 7 will be locked in the anti-rotation groove 15 to prevent rotation, making it easy for the upper tool box to fix the screw in place. The direction of the groove 11 is also aligned with the long end of the screw head 8. The dimensions of the screw head 8 are 88mm outer diameter, 40mm thick, and 40mm wide.

[0027] A marking line 12 is provided on the end face of the screw head 8 away from the screw body 9. The direction of the marking line 12 is consistent with the direction of the long end of the screw head 8. The purpose of this marking groove 11 is to check whether the screw is installed in the correct direction.

[0028] Figure 3 The leftmost upper tool box fixing screw state refers to the upper tool box fixing screw extending from outside the upper tool holder 1 into the upper tool box 2. At this time, the long end of the upper tool box fixing screw is horizontal, and the marking groove 11 is horizontal. The adjacent upper tool box fixing screw state refers to the upper tool box fixing screw extending into the position, and the large head 8 of the screw rotating downwards. When the marking groove 11 rotates downwards until the anti-rotation boss 7 is engaged in the anti-rotation groove 15, the upper tool box fixing screw has rotated into the position.

[0029] The upper tool holder 1 has a through hole 5 on its side wall. The upper tool box fixing screw passes through the through hole 5. The through hole 5 is a square hole with a height of 50mm and a length of 98mm. This hole is machined inside the upper tool box 2.

[0030] A nut 6 is installed on the upper tool box fixing screw. The side wall of the nut 6 abuts against the side wall of the upper tool holder 1 facing away from the upper tool box 2. A positioning washer 13 is sandwiched between the side wall of the nut 6 and the side wall of the upper tool holder 1. A through hole 14 is opened in the positioning washer 13. The screw body 9 passes through the through hole 14. The positioning washer 13 is set to ensure that the screw fits tightly with the upper tool holder 1 when tightened.

[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A shearing machine upper blade box device, comprising an upper blade holder (1), an upper blade box (2), and blades (3), wherein the blades (3) are installed in the upper blade box (2), and the upper blade box (2) is installed in the upper blade holder (1), characterized in that, The blade (3) is installed in the upper blade box (2) by an internal fixing screw (16). The upper blade box (2) has a placement groove (4) on the side wall facing the upper blade holder (1). The upper blade box fixing screw is installed in the placement groove (4). The side wall of the upper blade holder (1) has a through hole (5). The upper blade box fixing screw passes through the through hole (5). A nut (6) is installed on the upper blade box fixing screw. The side wall of the nut (6) abuts against the side wall of the upper blade holder (1) facing away from the upper blade box (2).

2. The shearing machine upper blade box device according to claim 1, characterized in that, The upper knife box fixing screw includes an anti-rotation boss (7), a screw head (8) and a screw body (9). The screw head (8) is fixedly disposed on the end face of the screw body (9). The anti-rotation boss (7) is fixedly disposed on the side wall of the screw body (9). A thread (10) is provided on the side wall of the screw body (9) away from the screw head (8). A groove (11) is opened on the end face of the thread (10).

3. The shearing machine upper blade box device according to claim 2, characterized in that, The screw head (8) is an elongated oval block. The direction of the anti-rotation boss (7) is consistent with the direction of the long end of the screw head (8), and the direction of the groove (11) is also consistent with the direction of the long end of the screw head (8).

4. The shearing machine upper blade box device according to claim 3, characterized in that, The screw head (8) has a marking line (12) on the end face away from the screw body (9), and the direction of the marking line (12) is consistent with the direction of the long end of the screw head (8).

5. The shearing machine upper blade box device according to claim 2, characterized in that, A positioning washer (13) is sandwiched between the side wall of the nut (6) and the side wall of the upper tool holder (1). A through hole (14) is provided in the positioning washer (13), and the screw body (9) passes through the through hole (14).

6. The shearing machine upper blade box device according to claim 2, characterized in that, The placement groove (4) is provided with an anti-rotation groove (15), and the shape of the anti-rotation groove (15) is consistent with the shape of the anti-rotation boss (7).

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