Durable gantry scissors

Abstract

The utility model discloses a pair of durable gantry shears, and belongs to the technical field of gantry shears. Comprising a portal frame, a material pressing seat is arranged in the portal frame, an oil cylinder and a hydraulic cylinder are arranged at the upper end of the portal frame, a material pressing head is arranged above the material pressing seat and fixedly connected with a piston rod of the hydraulic cylinder, and a tool rest is arranged at the front end of the material pressing head and fixedly connected with a piston rod of the oil cylinder. Second lining plates are arranged on the two sides of the material pressing head, the tool rest comprises a tool apron, and a shearing tool body is arranged in the tool apron and fixedly connected with the tool apron through a positioning pin. According to the pair of durable gantry scissors, the surface of the blade is coated with the titanium-nitrogen alloy coating, the abrasion resistance and corrosion resistance of the cutter are remarkably improved, meanwhile, the complexity and high cost of overall replacement are avoided through disassembly and replacement of a single cutter body, and therefore the working efficiency of equipment is improved, and the production cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a gantry shears technical field, concretely is a durable gantry shears. BACKGROUND

[0002] Traditional gantry shears tools generally adopt high-strength alloy material, but under high-strength shearing working conditions, the wear problem of tool still exists, especially in the case of long time use or high load operation, the cutting edge is easy to wear, corrode or produce cutting inaccurate condition.These problems not only affect the shearing quality, but also increase the overall replacement frequency and maintenance cost of tool. SUMMARY

[0003] The utility model discloses a durable gantry shears, by coating titanium nitrogen alloy coating on the cutting edge surface, the wear resistance and corrosion resistance of tool are improved significantly, simultaneously through the dismounting and replacement of single tool body, the complexity and high cost of overall replacement are avoided, thereby improve the work efficiency of equipment, reduce production cost, solve the problem in the prior art.

[0004] To achieve the above object, the utility model provides the following technical scheme: a durable gantry shears, including gantry, the inside of gantry is provided with pressure material seat, and the upper end of gantry is provided with oil cylinder and hydraulic cylinder respectively, and the upper of pressure material seat is provided with pressure material head, and the pressure material head is fixedly connected with the piston rod of hydraulic cylinder, and the front end of pressure material head is provided with tool holder, and the tool holder is fixedly connected with the piston rod of oil cylinder, and the both sides of pressure material head are provided with lining board no.

[0005] The cutting surface of shearing tool body is cutting edge surface, and the outer surface of cutting edge surface is coated with titanium nitrogen alloy coating.

[0006] Preferably, the both sides of tool holder are provided with lining board no.

[0007] Preferably, the front and rear sides of shearing tool body are provided with sliding groove, and the sliding groove is slidably connected with the sliding block in tool seat.

[0008] Preferably, the sliding groove position of shearing tool body is provided with positioning hole.

[0009] Compared with the prior art, the utility model has the beneficial effects as follows:

[0010] 1. The durable gantry shear of the utility model, the outer surface of the cutting edge surface is coated with titanium-nitrogen alloy coating, which significantly improves the wear resistance and corrosion resistance of the tool. The titanium-nitrogen alloy coating can effectively reduce the wear of the cutting edge and prolong the service life of the tool. Even under high-strength shearing working conditions, stable shearing performance can be maintained.

[0011] 2. The durable gantry shear of the utility model, the front and rear sides of the shearing cutter body are provided with sliding grooves and are slidingly connected with the sliding blocks in the cutter holder. This design allows the single cutter body to easily slide in the cutter holder, facilitating individual disassembly and replacement without the need for overall replacement. The convenience of cutter body replacement reduces maintenance and repair costs. Regular replacement of the cutter body can prevent excessive wear of the tool and affect the shearing quality. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 is a schematic diagram of the overall structure of the utility model;

[0013] Figure 2 is a schematic diagram of the overall rear view structure of the utility model;

[0014] Figure 3 is a schematic diagram of the tool holder structure of the utility model;

[0015] Figure 4 is a schematic diagram of the shearing cutter body from below of the utility model.

[0016] In the figure: 1, gantry; 2, pressure seat; 3, tool holder; 4, pressure head; 5, backing plate two; 6, backing plate one; 301, oil cylinder; 302, cutter holder; 303, guide block; 304, shearing cutter body; 305, positioning pin; 306, sliding groove; 307, positioning hole; 308, cutting edge surface; 309, titanium-nitrogen alloy coating; 401, hydraulic cylinder; 601, side plate. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only a part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0018] Please refer to Figures 1-4 The present embodiment provides the following technical solutions:

[0019] A durable gantry shear includes a gantry 1, the inside of the gantry 1 is provided with a pressure seat 2, the upper end of the gantry 1 is respectively provided with an oil cylinder 301 and a hydraulic cylinder 401, the upper side of the pressure seat 2 is provided with a pressure head 4, and the pressure head 4 is fixedly connected with the piston rod of the hydraulic cylinder 401, the front end of the pressure head 4 is provided with a tool holder 3, and the tool holder 3 is fixedly connected with the piston rod of the oil cylinder 301, both sides of the pressure head 4 are provided with a lining plate two 5, and the tool holder 3 includes a tool seat 302, the inside of the tool seat 302 is provided with a shearing cutter body 304, and the shearing cutter body 304 is fixedly connected with the tool seat 302 through a positioning pin 305.

[0020] In the embodiment, the tool holder 3 is provided with a lining plate one 6 on both sides, the tool seat 302 is provided with a guide block 303 on both sides, and the lining plate one 6 is provided with a side plate 601 on the front and back sides, respectively, a guide groove is formed between the lining plate one 6 and the side plate 601, and the guide groove is slidably connected with the guide block 303.

[0021] Specifically, through the sliding connection of the guide groove and the guide block 303, a good guide system is formed. In the shearing process, the cooperation of the lining plate one 6 and the side plate 601 can effectively avoid the transverse displacement of the cutter body, ensure the accurate butt joint of the cutter, effectively improve the shearing efficiency and quality, the design of the guide groove reduces the friction between the tool seat 302 and the cutter body, so that the tool seat 302 can move more stably, reduces excessive wear, and helps to prolong the service life of the gantry shear.

[0022] In the embodiment, the shearing cutter body 304 is provided with a sliding groove 306 on the front and back sides, the sliding groove 306 is slidably connected with a sliding block in the tool seat 302, the sliding groove 306 of the shearing cutter body 304 is provided with a positioning hole 307, the shearing surface of the shearing cutter body 304 is a cutting edge surface 308, and the outer surface of the cutting edge surface 308 is coated with a titanium-nitrogen alloy coating 309.

[0023] Specifically, the outer surface of the cutting edge surface 308 is coated with a titanium-nitrogen alloy coating 309, which significantly improves the wear resistance and corrosion resistance of the cutter. The titanium-nitrogen alloy coating 309 can effectively reduce the wear of the cutting edge and prolong the service life of the cutter. Even under high-strength shearing working conditions, it can also maintain stable shearing performance.

[0024] The shearing cutter body 304 is provided with a sliding groove 306 on the front and back sides, and is slidably connected with a sliding block in the tool seat 302. This design allows a single cutter body to easily slide in the tool seat 302, facilitating individual disassembly and replacement without the need for overall replacement. The convenience of cutter body replacement reduces maintenance and repair costs. Regular replacement of the cutter body can prevent excessive wear of the cutter and affect the shearing quality.

[0025] Working principle: when the gantry shear starts, the oil cylinder 301 and the hydraulic cylinder 401 start to work. The oil cylinder 301 mainly controls the movement of the tool holder 3, and the hydraulic cylinder 401 controls the up and down action of the pressing head 4. In the working process, the hydraulic cylinder 401 pushes the pressing head 4 to move down, and the pressing head 4 is fixedly connected with the hydraulic cylinder piston rod to press the metal plate to the pressing seat 2. After the pressing head 4 is pressed down tightly, the oil cylinder 301 starts to work, and the tool holder 3 is pushed to move down. The tool holder 3 is provided with a shear cutter body 304 inside. The tool holder 3 is connected with the hydraulic system through the piston rod of the oil cylinder 301, and the down pressure position of the cutter can be accurately controlled. When the tool holder 3 is pressed down, the shear cutter body 304 on the tool holder 3 shears the metal plate. When the cutter body needs to be replaced after long time use, the operator only needs to take out the positioning pin 305 to easily take out or replace the single shear cutter body 304.

Claims

1. A durable gantry shear, comprising a gantry frame (1), characterized in that: The gantry frame (1) is provided with a pressing seat (2) inside. The upper end of the gantry frame (1) is provided with an oil cylinder (301) and a hydraulic cylinder (401). A pressing head (4) is provided above the pressing seat (2), and the pressing head (4) is fixedly connected to the piston rod of the hydraulic cylinder (401). A knife holder (3) is provided at the front end of the pressing head (4), and the knife holder (3) is fixedly connected to the piston rod of the oil cylinder (301). Liner plates (5) are provided on both sides of the pressing head (4). The knife holder (3) includes a knife holder (302). A shearing knife body (304) is provided inside the knife holder (302). The shearing knife body (304) is fixedly connected to the knife holder (302) by a positioning pin (305). The shearing surface of the shearing blade (304) is the cutting edge (308), and the outer surface of the cutting edge (308) is coated with a titanium-nitrogen alloy coating (309).

2. A durable gantry shear according to claim 1, characterized in that: The tool holder (3) is provided with a liner plate (6) on both sides, and the tool holder (302) is provided with a guide block (303) on both sides. The liner plate (6) is provided with a side plate (601) on the front and rear sides respectively. The side plate (601) and the liner plate (6) form a guide groove, and the guide groove is slidably connected to the guide block (303).

3. A durable gantry shear according to claim 1, characterized in that: The shearing blade (304) is provided with sliding grooves (306) on both the front and rear sides, and the sliding grooves (306) are slidably connected to the slider inside the blade holder (302).

4. A durable gantry shear according to claim 1, characterized in that: The shearing blade (304) has a positioning hole (307) at the groove (306) position.

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