Flexible bending center sideslip pneumatic hinge cutter

Abstract

The utility model provides a flexible bending center sideslip pneumatic hinge cutter, and relates to the field of cutters. The flexible bending center sideslip pneumatic hinge cutter comprises a fixed cutter, a movable cutter is arranged at the bottom of the fixed cutter in a sliding mode, a sideslip cutter structure is arranged on one side of the movable cutter, a reset spring is fixedly installed between the sideslip cutter structure and the fixed cutter, and a telescopic pneumatic cylinder is fixedly connected to the outer side of the fixed cutter. According to the flexible bending center sideslip pneumatic hinge cutter, the telescopic pneumatic cylinder pulls the movable cutter to move through the transmission side rod and the connecting rod structure, the rebound reset spring pulls the triangular plate to reset, the sideslip cutter structure is pulled to reset, and at the moment, the hinge cutter is in a contraction state. Through cooperation of the telescopic pneumatic cylinder, the connecting rod structure and the reset spring, the hinge knife with the side sliding knife structure and the movable knife capable of rapidly contracting and stretching out is provided, and the requirement that when some special workpieces are bent, the hinge knife needs to stretch out and draw back laterally to conduct knife splicing and bending is met.

Description

Technical Field

[0001] The utility model relates to a hinge knife, in particular to a flexible bending center side sliding pneumatic hinge knife, belonging to the technical field of cutting tools. Background Art

[0002] A bending center is a machine that can bend metal sheets. It is mainly used in the field of metal sheet processing. The bending machine uses a simple mold to bend metal sheets at various angles to obtain metal sheets with complex shapes. The flexible bending center is a new type of thin plate bending equipment that can realize automatic bending of plates, greatly improving bending efficiency and accuracy, which is a huge help to the sheet metal industry.

[0003] For example, the existing patent application number is: 202222420165.7. The utility model discloses an improved hinge knife with a flexible bending center, including a mother knife, a first mounting groove, and two movable knives symmetrically slidably connected to the bottom of the mother knife. The utility model uses a spring, a partition, a steel ball and a pressure cover to enable the user to press the plate with the movable knife. When the mother knife moves upward, the movable knife moves downward under the action of gravity. At this time, the steel ball can first contact the top of the plate, thereby preventing the plate from moving.

[0004] The bending machine completes bending through the linkage of the upper and lower bending knives. However, the shape and bending angle formed by the bending machine are limited and difficult to control, and cannot achieve any required shape and required bending angle. This is mainly because the shape of the tool head is fixed after production, and a tool head can only achieve bending at a fixed angle. In addition, the bending tool head is usually a downward pressure structure, which means that it can only complete bending of the shape corresponding to the tool head, and cannot meet the processing requirements of some special workpieces that require the side extension of the hinge tool. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] The purpose of the utility model is to provide a flexible bending center side sliding pneumatic hinge knife in order to solve the above-mentioned problems, so as to solve the problem that the bending tool head in the prior art is usually a downward pressure structure, which results in that it can only complete the bending of the shape corresponding to the tool head and cannot meet the processing requirements of some special workpieces that require the side extension and retraction of the hinge knife.

[0007] (II) Technical solution

[0008] The utility model is realized through the following technical scheme: a flexible bending center side sliding pneumatic hinge knife comprises a fixed knife, a movable knife is slidably arranged at the bottom of the fixed knife, a side sliding knife structure is arranged on one side of the movable knife, a return spring is fixedly installed between the side sliding knife structure and the fixed knife, a telescopic pneumatic cylinder is fixedly connected to the outer side of the fixed knife, and a connecting rod structure is arranged between the telescopic pneumatic cylinder and the movable knife.

[0009] Preferably, one side of the movable knife is fixedly connected with a mounting plate, and the mounting plate is arranged inside the fixed knife.

[0010] Preferably, the side-sliding knife structure comprises a side-sliding knife, and the side-sliding knife is arranged inside the fixed knife.

[0011] Preferably, a triangular plate is fixedly connected to one side of the side-sliding tool, the inclined surface of the triangular plate contacts the inclined surface of the movable knife, the side-sliding tool to which the fixed knife is slidably connected is allowed to move in a direction perpendicular to the movement direction of the movable knife, and the movable knife pushes the side-sliding tool to move in a direction perpendicular to the movement direction of the movable knife through the triangular plate, and the side-sliding tool extends.

[0012] Preferably, a circular groove is provided on one side of the triangle plate, one end of the return spring is arranged inside the circular groove and fixedly connected to the triangle plate, a movable knife is fixedly connected inside the fixed knife, and the other end of the return spring extends into the storage tube and is fixedly connected to the storage tube. The storage tube seals and protects the return spring while preventing the movement of the triangle plate and the movable knife from being misaligned, causing the movement of the movable knife to be blocked by the side sliding knife structure, thereby ensuring the stability of the hinge knife in extending and contracting.

[0013] Preferably, the connecting rod structure includes a fixed seat, the fixed seat is fixedly connected to one side of the movable knife, one side of the fixed seat is rotatably connected to a connecting short rod, an arc-shaped connecting rod is rotatably sleeved on the outer side of the connecting short rod, one end of the arc-shaped connecting rod is fixedly connected to a transmission box, the arc-shaped connecting rod pushes the movable knife through the connecting short rod and the fixed seat, and the movable knife slidably connected to the fixed knife moves out horizontally.

[0014] Preferably, the transmission box is provided with a sliding groove, a transmission side rod is arranged inside the sliding groove, the transmission side rod moves inside the sliding groove without causing motion interference with the sliding groove, the transmission side rod is fixedly connected to the telescopic pneumatic cylinder, and the transmission box is rotatably connected to the fixed knife.

[0015] The utility model provides a flexible bending center side sliding pneumatic hinge knife, which has the following beneficial effects:

[0016] 1. The flexible bending center side sliding pneumatic hinge knife, the telescopic pneumatic cylinder pulls the movable knife to move through the transmission side rod and the connecting rod structure, the rebounding reset spring pulls the triangle plate to reset, and the side sliding knife structure is pulled to reset, and the hinge knife is in a retracted state. Through the cooperation of the telescopic pneumatic cylinder, the connecting rod structure and the reset spring, a side sliding knife structure and a hinge knife with a movable knife that can be quickly retracted and extended are provided, which meets the needs of some special workpieces that require the hinge knife to be able to retract sideways for knife bending when bending.

[0017] 2. The flexible bending center side-sliding pneumatic hinge knife controls the telescopic pneumatic cylinder fixedly connected to the outside of the fixed knife to work. The telescopic pneumatic cylinder pushes the movable knife to move through the transmission side rod and the connecting rod structure. The movable knife connected to the fixed knife moves horizontally and extends. At this time, the tip of the movable knife is in the front of the forward direction. The movable knife pushes the side-sliding knife to move in the vertical direction of the movable knife through the triangular plate. The side-sliding knife extends, as shown in the figure, and the tip of the side-sliding knife is in the front of the forward direction. When the telescopic pneumatic cylinder stops working, the tips of the side-sliding knife structure and the movable knife are in a state of extending from the inside of the fixed knife. At this time, the hinge knife composed of the fixed knife, telescopic pneumatic cylinder, connecting rod structure, side-sliding knife structure, movable knife, etc. is in an extended state. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a side view of the utility model;

[0020] Figure 3 It is a partial structural schematic diagram of the storage tube of the utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the fixed knife of the utility model;

[0022] Figure 5 It is a structural schematic diagram of the side sliding cutter of the utility model.

[0023]

Main component symbol description

[0024] 1. Fixed knife; 2. Telescopic pneumatic cylinder; 201. Transmission side rod; 3. Connecting rod structure; 301. Arc connecting rod; 302. Transmission box; 303. Sliding groove; 304. Connecting short rod; 305. Fixed seat; 4. Side sliding knife structure; 401. Side sliding tool; 402. Triangle plate; 403. Circular groove; 5. Movable knife; 501. Mounting plate; 6. Reset spring; 7. Storage tube. DETAILED DESCRIPTION

[0025] The embodiment of the utility model provides a flexible bending center side sliding pneumatic hinge knife.

[0026] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 , including a fixed knife 1, a movable knife 5 is slidably arranged at the bottom of the fixed knife 1, a side sliding knife structure 4 is arranged on one side of the movable knife 5, a return spring 6 is fixedly installed between the side sliding knife structure 4 and the fixed knife 1, a telescopic pneumatic cylinder 2 is fixedly connected to the outer side of the fixed knife 1, and a connecting rod structure 3 is arranged between the telescopic pneumatic cylinder 2 and the movable knife 5.

[0027] When the utility model is in use: one side of the movable knife 5 arranged at the bottom of the fixed knife 1 is fixedly connected with the mounting plate 501, and the mounting plate 501 is arranged inside the fixed knife 1 and contacts the fixed knife 1. Under the action of the mounting plate 501, the movable knife 5 can only move horizontally inside the fixed knife 1. When it is necessary to control the side sliding knife structure 4 to extend, the telescopic pneumatic cylinder 2 fixedly connected to the outside of the fixed knife 1 is controlled to work, and the transmission side rod 201 fixedly connected to the extending end of the telescopic pneumatic cylinder 2 is pushed, and the transmission box 302 in the connecting rod structure 3 is rotatably connected to the fixed knife 1, and the transmission side rod 201 is arranged inside the sliding groove 303 opened on the outside of the transmission box 302, so when the telescopic pneumatic cylinder 2 pushes the transmission side rod 201 to move horizontally, the transmission side rod 201 pushes the transmission box 302 to rotate on one side of the fixed knife 1, and at this time, the movement of the transmission side rod 201 in the sliding groove 303 will not cause motion interference with the sliding groove 303, and the telescopic pneumatic cylinder 2 has a short working time, pushes the transmission side rod 201 to move a small distance, and the length of the sliding groove 303 is sufficient to meet the movement of the transmission side rod 201.

[0028] The rotating transmission box 302 drives the arc-shaped connecting rod 301 fixedly connected at one end to rotate, and a connecting short rod 304 is rotatably connected inside the arc-shaped connecting rod 301, and a fixed seat 305 rotatably connected to the connecting short rod 304 is fixedly connected to one side of the movable knife 5. The arc-shaped connecting rod 301 pushes the movable knife 5 through the connecting short rod 304 and the fixed seat 305, and the movable knife 5 slidably connected to the fixed knife 1 moves horizontally and extends out. At this time, the tip of the movable knife 5 is in the front in the forward direction.

[0029] Since the side-sliding tool 401 in the side-sliding tool structure 4 is slidably arranged inside the fixed tool 1, one side of the triangle plate 402 to which the side-sliding tool 401 is fixedly connected is set as an inclined surface, and the inclined surface of the triangle plate 402 contacts the inclined surface of the movable tool 5, the movable tool 5 that moves out pushes the triangle plate 402. Since the side-sliding tool 401 that is slidably connected to the fixed tool 1 is allowed to move in a direction perpendicular to the moving direction of the movable tool 5, the movable tool 5 pushes the side-sliding tool 401 to move in a direction perpendicular to the moving direction of the movable tool 5 through the triangle plate 402, and the side-sliding tool 401 extends, as shown in FIG. Figure 5As shown, the tip of the side-sliding knife 401 is in the front in the forward direction. When the telescopic pneumatic cylinder 2 stops working, the tips of the side-sliding knife structure 4 and the movable knife 5 are both in a state of extending out of the fixed knife 1, and the hinge knife formed by the fixed knife 1, the telescopic pneumatic cylinder 2, the connecting rod structure 3, the side-sliding knife structure 4, the movable knife 5, etc. is in an extended state.

[0030] When the telescopic pneumatic cylinder 2 is retracted, the telescopic pneumatic cylinder 2 pulls the movable knife 5 to move through the transmission side rod 201 and the connecting rod structure 3. At this time, the back of the movable knife 5 is in the front in the forward direction, so that the movable knife 5 is retracted into the fixed knife 1. After the movable knife 5 is reset, one side of the side sliding knife structure 4 loses its limit. A circular groove 403 is provided on one side of the triangle plate 402, and one end of the reset spring 6 is arranged inside the circular groove 403 and fixedly connected to the triangle plate 402. Therefore, the rebounding reset spring 6 pulls the triangle plate 402 to reset, and the side sliding knife structure 4 is pulled to reset. At this time, the hinge knife is in a retracted state. Through the cooperation of the telescopic pneumatic cylinder 2, the connecting rod structure 3 and the reset spring 6, a hinge knife that can be quickly retracted and extended by the side sliding knife structure 4 and the movable knife 5 is provided, which meets the needs of some special workpieces that need the hinge knife to be able to be retracted and bent sideways for knife bending.

[0031] Since one end of the return spring 6 is fixedly connected to the triangle plate 402, and the other end extends into the storage tube 7 fixedly connected to the fixed knife 1, during the process of the side sliding knife structure 4 being pulled to reset, the contracted return spring 6 enters the storage tube 7, and after the movement of the side sliding knife structure 4 is blocked and limited by the storage tube 7 fixedly connected to the fixed knife 1, the reset work of the side sliding knife structure 4 is completed. While the storage tube 7 seals and protects the return spring 6, it prevents the movement of the triangle plate 402 from being misaligned with the movable knife 5, causing the movement of the movable knife 5 to be blocked by the side sliding knife structure 4, thereby ensuring the stability of the hinge knife in extending and retracting.

[0032] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A flexible bending center side sliding pneumatic hinge knife, comprising a fixed knife (1), characterized in that: A movable knife (5) is slidably arranged at the bottom of the fixed knife (1); a side sliding knife structure (4) is arranged on one side of the movable knife (5); a return spring (6) is fixedly installed between the side sliding knife structure (4) and the fixed knife (1); a telescopic pneumatic cylinder (2) is fixedly connected to the outside of the fixed knife (1); and a connecting rod structure (3) is arranged between the telescopic pneumatic cylinder (2) and the movable knife (5).

2. The flexible bending center side sliding pneumatic hinge knife according to claim 1, characterized in that: A mounting plate (501) is fixedly connected to one side of the movable knife (5), and the mounting plate (501) is arranged inside the fixed knife (1).

3. The flexible bending center side sliding pneumatic hinge knife according to claim 1, characterized in that: The side-sliding knife structure (4) comprises a side-sliding knife (401), and the side-sliding knife (401) is arranged inside the fixed knife (1).

4. The flexible bending center side sliding pneumatic hinge knife according to claim 3 is characterized by: A triangular plate (402) is fixedly connected to one side of the side-sliding tool (401), and an inclined surface of the triangular plate (402) contacts an inclined surface of the movable tool (5).

5. The flexible bending center side sliding pneumatic hinge knife according to claim 4, characterized in that: A circular groove (403) is provided on one side of the triangular plate (402); one end of the return spring (6) is arranged inside the circular groove (403) and is fixedly connected to the triangular plate (402); a movable knife (5) is fixedly connected inside the fixed knife (1); and the other end of the return spring (6) extends into the storage tube (7) and is fixedly connected to the storage tube (7).

6. The flexible bending center side sliding pneumatic hinge knife according to claim 1, characterized in that: The connecting rod structure (3) comprises a fixed seat (305), wherein the fixed seat (305) is fixedly connected to one side of the movable knife (5), one side of the fixed seat (305) is rotatably connected to a connecting short rod (304), an arc-shaped connecting rod (301) is rotatably sleeved on the outer side of the connecting short rod (304), and one end of the arc-shaped connecting rod (301) is fixedly connected to a transmission box (302).

7. The flexible bending center side sliding pneumatic hinge knife according to claim 6, characterized in that: The transmission box (302) is provided with a sliding groove (303), a transmission side rod (201) is arranged inside the sliding groove (303), the transmission side rod (201) is fixedly connected to the telescopic pneumatic cylinder (2), and the transmission box (302) is rotatably connected to the fixed knife (1).

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