Cold machining method for high-strength wear-resistant lining plate

Abstract

The invention provides a high-strength wear-resistant lining plate cold machining method, which relates to the technical field of lining plate machining, and comprises the following steps: S1, conveying a plate to the surface of a machining tool to be opposite to laser cutting equipment, and limiting and fixing the plate; s2, after the plate is fixed, laser cutting equipment is controlled to form a plurality of counter bores in preset positions of the surface of the plate through laser cutting, and limiting and fixing are canceled after the multiple counter bores are machined; s3, the plate machined in the step S2 is conveyed to the outer side of the sealing chamber along the machining machine tool to be opposite to reaming equipment; and S4, after the plate is opposite to the reaming device, the plate is limited and fixed again, and then reaming machining is conducted on the upper end of the counter bore through reaming equipment. According to the device, laser cutting equipment and reaming equipment can be separated, the influence of a large amount of smoke and dust generated in the laser cutting process on normal reaming machining on the outer side is avoided, the machining environment is improved, and meanwhile, the cold machining efficiency of plates is further improved.

Description

Technical Field

[0001] The present invention relates to the technical field of liner processing, and particularly relates to a cold processing method for high-strength wear-resistant liners. Background Art

[0002] Mining wear-resistant liners are mainly applied to lifting equipment, mining equipment, ore dressing, and crushing equipment. The wear-resistant liners mainly include two different types of high-performance imported materials, namely Hardox 500 and Monel K500, and domestic wear-resistant liners such as NM500. Traditional processing methods for high-strength wear-resistant plate products use hot processing methods, which have great influence on the hardness of high-strength wear-resistant plates, and have disadvantages such as unable to guarantee product quality and high processing costs.

[0003] Processing the wear-resistant liner by cold processing method greatly improves the performance of the wear-resistant plate and meets the usage requirements. Among them, laser cutting, as a cold cutting process, has less influence on the hardness of high-strength wear-resistant plates compared with flame or plasma cutting, and is particularly suitable for application scenarios with higher hardness requirements for the cutting area. Using a laser cutting device, a counterbore with the same upper and lower hole diameters can be quickly cut and formed on the steel plate surface. Subsequently, a reaming device is required to ream the upper surface of the steel plate to meet the needs of subsequent production and assembly. In the traditional processing process, workers need to transfer the laser-cut steel plate to one side of the reaming device, increasing the operation process. Especially for larger steel plates, due to their large size and heavy weight, the transfer and secondary processing positioning take a long time, affecting the overall processing efficiency. Summary of the Invention

[0004] In view of the above problems, the present invention provides a cold processing method for high-strength wear-resistant liners. This invention can separate the laser cutting device and the reaming device, avoid the influence of a large amount of smoke and dust generated during laser cutting on the normal reaming processing outside, improve the processing environment, and at the same time, further improve the efficiency of cold processing of the plate.

[0005] To solve the above problems, the technical solution adopted by the present invention is: A cold processing method for a high-strength wear-resistant lining plate, using a lining plate cold processing device. The lining plate cold processing device includes a processing machine tool for carrying the plate, and also includes a laser cutting device and a reaming device. A sealing chamber is sleeved outside the laser cutting device. Through openings for the plate to pass through are opened on both sides of the sealing chamber, and sealing devices are arranged at the lower ends of the through openings. The method includes the following steps: S1. Transport the plate to the surface of the processing machine tool opposite to the laser cutting device and complete the limiting and fixing of the plate; S2. After the plate is fixed, control the laser cutting device to laser cut a number of counterbores at predetermined positions on the surface of the plate. After the processing of multiple counterbores is completed, cancel the limiting and fixing; S3. Transport the plate processed in step S2 along the processing machine tool to the outside of the sealing chamber opposite to the reaming device; S4. After the plate is opposite to the reaming device, limit and fix the plate again, and then use the reaming device to ream the upper end of the counterbore to complete the cold processing of the high-strength wear-resistant lining plate.

[0006] Preferably, the plate is limited and fixed by a limiting device. The limiting device includes limiting rods located on both sides of the plate. Both of the limiting rods are arranged along the length direction of the processing machine tool and are parallel to each other. It also includes a control block for controlling the horizontal position of the limiting rods. By controlling the control block, the two limiting rods move towards the inside to complete the clamping and limiting of the plate.

[0007] Preferably, the control block includes an inclined control surface. The limiting rod is slidably connected to the control surface. During the process of the control block descending, it squeezes the limiting rod to move towards the inside. There are two positions of the control block, and the two control blocks are symmetrically arranged around the vertical plane.

[0008] Preferably, the control block is fixedly connected to the sealing device and moves synchronously with the sealing device.

[0009] Preferably, two symmetric control blocks form a set of control mechanisms. There are two sets of control mechanisms arranged front and back, and the two sets of control mechanisms are fixedly connected to the corresponding sealing devices.

[0010] Preferably, a sealing capsule is further arranged at the lower end of the sealing device. A telescopic air rod is arranged between the lower end of the control block and the processing machine tool. The telescopic air rod is communicated with the sealing capsule through a pumping pipeline.

[0011] Preferably, the sealing device includes a sealing bottom plate and sealing side plates located on both sides of the upper end of the sealing bottom plate. The two sealing side plates are sleeved outside the sealing chamber and are slidably connected to the sealing chamber. A lifting assembly is further arranged between the sealing chamber and the sealing bottom plate for controlling the lifting and moving of the sealing bottom plate.

[0012] Preferably, a negative pressure pipeline is opened on the side wall of the sealing chamber, and the negative pressure pipeline is communicated with a negative pressure device.

[0013] The beneficial effects of the present invention are: Compared with the prior art, by setting the above structure, the internal laser cutting equipment can be sealed by setting the sealing chamber and the sealing device, and the laser cutting equipment and the hole expanding equipment can be separated, avoiding the influence of a large amount of smoke and dust generated during the laser cutting process on the normal hole expanding processing on the outside, improving the processing environment, and ensuring the normal progress of different processing procedures before and after; at the same time, there is no need for workers to transfer the plates in different workshops, greatly improving the processing efficiency. The workers only need to perform secondary positioning along the moving direction of the plates subsequently, further improving the efficiency of cold processing of the plates. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the counterbore structure of the present invention.

[0015] Figure 2 It is a three-dimensional structure schematic diagram of the present invention.

[0016] Figure 3 For the present invention Figure 2 Schematic diagram of the rear view structure.

[0017] Figure 4 For the present invention Figure 2 Schematic diagram of the top view structure.

[0018] Figure 5 For the present invention Figure 4 Schematic diagram of the sectional structure taken along the A-A direction.

[0019] Figure 6 For the present invention Figure 5 Schematic diagram of the enlarged structure at position B.

[0020] Figure 7 It is a three-dimensional structure schematic diagram of the limiting device of the present invention.

[0021] Figure 8 For the present invention Figure 7 Schematic diagram of the front view structure.

[0022] In the figure: 100, plate; 110, counterbore; 200, processing machine tool; 300, sealing chamber; 310, negative pressure pipeline; 320, through opening; 400, laser cutting equipment; 410, first position-controlled joint; 420, second position-controlled joint; 430, laser cutting head; 500, sealing device; 510, sealing bottom plate; 520, sealing side plate; 530, lifting assembly; 540, sealing capsule; 600, limiting device; 610, limiting rod; 620, control block; 621, control surface; 630, telescopic air rod. DETAILED DESCRIPTION OF THE INVENTION

[0023] The present invention will be further described below in conjunction with the drawings and embodiments.

[0024] In order to solve the technical problems mentioned in the background art, referring to the attached Figure 1 - attached Figure 8 , a cold processing method for high-strength wear-resistant lining plates, using a lining plate cold processing device. The lining plate cold processing device includes a processing machine tool 200 for carrying the plate 100, and also includes a laser cutting device 400 and a hole expanding device. The surface of the plate 100 is cut by the laser cutting device 400 to form a counterbore 110 with the same upper and lower hole diameters. The surface of the plate 100 is subjected to hole expanding processing by the hole expanding device, and finally an installation hole meeting the requirements is formed. The installation hole meeting the requirements is specifically referred to in the attached Figure 1 .

[0025] A sealing chamber 300 is sleeved outside the laser cutting device 400. Through openings 320 for the plate 100 to pass through are opened on both sides of the sealing chamber 300, and sealing devices 500 are arranged at the lower ends of the through openings 320. By providing the sealing chamber 300 and the sealing devices 500, the internal laser cutting device 400 can be sealed (for the convenience of observation, the sealing cover on the top of the sealing chamber 300 has been removed). At the same time, two through openings 320 are opened on the front and rear sides of the sealing chamber 300 (along the length direction of the processing machine tool 200, that is, the moving direction of the plate 100 during processing), which can allow the plate 100 to pass through for processing in sequence without the need for staff to transfer it, greatly improving the processing efficiency. And the staff only need to perform secondary positioning along the moving direction of the plate 100 subsequently, further improving the cold processing efficiency of the plate 100.

[0026] Specifically, it includes the following steps: S1. Convey the plate 100 to the surface of the processing machine tool 200 opposite to the laser cutting device 400, and complete the limit fixation of the plate 100; during the processing, ensure that the plate 100 is in a stable limited state to avoid the plate shaking and affecting the laser cutting.

[0027] S2. After the plate is fixed, control the laser cutting device 400 to laser cut and form a number of counterbores 110 at a predetermined position on the surface of the plate. After the processing of multiple counterbores 110 is completed, cancel the limit fixation; the counterbores 110 here penetrate up and down, and the upper and lower inner diameter sizes are the same. According to the processing needs, a number of counterbores 110 are formed in an array distribution on the surface of the plate 100.

[0028] S3. Convey the plate 100 processed in step S2 along the processing machine tool 200 to the outside of the sealing chamber 300 opposite to the hole expanding device; a traction device can be installed outside the processing machine tool 200 or a transmission device can be arranged at the bottom to drive the plate 100 to move towards the outside of the sealing chamber 300, and finally move to one side of the hole expanding device for hole expanding processing. During the moving process, control the sealing device 500 to lift and be in an open state to ensure the normal movement of the plate.

[0029] The reaming device in the figure is not shown. Those skilled in the art can select the model and quantity according to needs, meet the processing requirements of the installation holes, ensure the relative consistency of the front and back processing rates, realize the continuous production of the plate 100, and maximize the production efficiency of the overall equipment.

[0030] S4. After the plate 100 is opposite to the reaming device, the plate 100 is limited and fixed again. Subsequently, the upper end of the counterbore 110 is reamed by the reaming equipment to complete the cold processing of the high-strength wear-resistant lining plate. The upper end of the counterbore 110 is reamed by the reaming equipment to form a frustum-shaped installation hole. For the specific processing dimensions, refer to the appendix Figure 1 , or it can be selected and processed according to actual needs.

[0031] In summary, by setting the above structure, the laser cutting equipment 400 inside can be sealed by setting the sealing chamber 300 and the sealing device 500, and the laser cutting equipment 400 and the reaming equipment can be separated, avoiding the influence of a large amount of smoke and dust generated during the laser cutting process on the normal reaming processing on the outside, improving the processing environment, and ensuring the normal progress of different processing procedures before and after; at the same time, there is no need for staff to transfer the plate 100 in different workshops, greatly improving the processing efficiency. Subsequently, the staff only needs to perform secondary positioning along the moving direction of the plate 100, further improving the cold processing efficiency of the plate 100.

[0032] Specifically, the plate 100 is limited and fixed by the limiting device 600. The limiting device 600 includes limiting rods 610 located on both sides of the plate 100. Both limiting rods 610 are arranged along the length direction of the processing machine tool 200 and are parallel to each other. The limiting rods 610 on both sides can be adapted to the length direction of the plate 100. It also includes a control block 620 for controlling the horizontal position of the limiting rods 610. By controlling the control block 620, the two limiting rods 610 move towards the inside to complete the clamping and limiting of the plate 100.

[0033] During the clamping and limiting process, by controlling the control block 620, the limiting rods 610 on both sides move towards the inside to complete the clamping and limiting of both sides of the plate 100. During the conveying process of the plate 100, by controlling the control block 620, the limiting rods 610 on both sides move towards the outside to cancel the clamping and limiting of both sides of the plate 100.

[0034] Specifically, the control block 620 includes an inclined control surface 621. The limiting rod 610 is slidably connected to the control surface 621. During the process of the control block 620 descending, it squeezes the limiting rod 610 to move towards the inside. There are two positions of the control block 620, and the two control blocks 620 are symmetrically arranged around the vertical plane.

[0035] Through the upper and lower structural design, the horizontal driving of the limit rod 610 can be achieved by driving the control block 620 to rise and fall; the limit rod 610 here is located at the upper end of the processing machine tool 200 and is in a load-bearing state. Under the action of gravity, the limit rod 610 and the upper end of the processing machine tool 200 are in a fitted state. In the process of the control block 620 moving downward, the limit rod 610 can be squeezed to move inward through the inclined control surface 621 to complete the clamping and limiting of the plate 100; in the process of the control block 620 moving upward, the control surface 621 is relatively staggered toward the outside, and the limit rod 610 here can descend under the action of gravity and counteract the upper end of the processing machine tool 200, and can automatically move to the outside to cancel the limit on the edge of the plate 100.

[0036] It should be noted that the control surface 621 here is set to face inward, and the vertical cross-section of the control surface 621 can be selected to be a triangle to ensure normal movement control; at the same time, an elastic element can be installed between the control block 620 and the limit rod 610, which can accelerate the reset of the limit rod 610 toward the outside. During the lifting process of the control block 620, the limit rod 610 can be pushed to move relative to the lower side, thereby achieving rapid reset and releasing the restriction on the inner plate 100.

[0037] Furthermore, the control block 620 is fixedly connected to the sealing device 500 and moves synchronously with the sealing device 500. Through the above-mentioned structural arrangement, the driving control of the control block 620 can be synchronously completed during the lifting and lowering of the sealing device 500, that is, the control block 620 is pushed down during the descending and sealing process of the sealing device 500. After the control block 620 is lowered, it can squeeze the limit rod 610 to move inward to complete the clamping and limiting of the plate 100; it can complete the clamping and limiting of the plates 100 on both sides while sealing on both sides, thereby further improving the processing efficiency of the plates 100.

[0038] Furthermore, the two symmetrical control blocks 620 form a group of control mechanisms, and two groups of control mechanisms are arranged in front and behind. The two groups of control mechanisms are fixedly connected to the corresponding sealing devices 500. Through the above-mentioned structural design, the two groups of control mechanisms can be controlled by the sealing devices 500 on both sides. Compared with the traditional single-point control mechanism, through the two groups of control mechanisms, the limit rod 610 can be pushed to move inward at two positions. The limit rod 610 can effectively push the plate 100 to the predetermined processing position, which is particularly suitable for processing and positioning of plates 100 with large size and mass, and realizes rapid and stable clamping and positioning, while avoiding damage caused by stress concentration, thereby improving the service life of the overall structure.

[0039] A sealing bladder 540 is also provided at the lower end of the sealing device 500. A telescopic air rod 630 is provided between the lower end of the control block 620 and the processing machine tool 200. The telescopic air rod 630 is communicated with the sealing bladder 540 through a pumping pipeline.

[0040] By controlling the compression of the telescopic air rod 630, the gas in the telescopic air rod 630 can be squeezed into the sealing bladder 540 to control the expansion of the sealing bladder 540. The sealing bladder 540 is arranged at a position with a sealing gap. The expanded sealing bladder 540 can strengthen the sealing effect at the gap, avoid the leakage of dust generated in the sealing chamber 300, and further ensure the processing environment in the processing workshop.

[0041] In addition, through the above structural design, the expansion of the sealing bladder 540 can be automatically controlled during the descent of the sealing device 500 to achieve automatic sealing, and the gas in the sealing bladder 540 can be automatically pumped out during the lifting of the sealing device 500 to achieve the automatic contraction of the sealing bladder 540, so as to form a larger passing opening 320 for the sheet 100 to pass through. While improving the overall sealing effect, the transportation efficiency of the sheet 100 is improved.

[0042] The sealing device 500 includes a sealing bottom plate 510 and sealing side plates 520 located on both sides of the upper end of the sealing bottom plate 510. The two sealing side plates 520 are sleeved outside the sealing chamber 300 and are slidably connected to the sealing chamber 300. A lifting assembly 530 is also provided between the sealing chamber 300 and the sealing bottom plate 510 for controlling the lifting and moving of the sealing bottom plate 510.

[0043] The above-mentioned lifting assembly 530 can be selected as a component of a hydraulic telescopic rod and a guide rod. By controlling the oil to drive the hydraulic telescopic rod to expand and contract, the telescopic control of the sealing bottom plate 510 and the sealing side plates 520 is realized, and the sealing setting is achieved; the sealing side plates 520 on both sides can also play a role of guiding and limiting, ensuring the stability of the overall sealing device 500 during the movement. At the same time, the sealing side plates 520 on both sides and the sealing bottom plate 510 can form a U-shaped sealing area to further avoid the leakage of dust in the sealing chamber 300.

[0044] A negative pressure pipeline 310 is opened on the side wall of the sealing chamber 300. The negative pressure pipeline 310 is communicated with a negative pressure device. During the laser cutting process, the dust in the sealing chamber 300 can be quickly pumped out under negative pressure through the negative pressure pipeline 310 to maintain a relatively clean state in the sealing chamber 300 and further avoid the overflow of dust.

[0045] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A cold processing method for a high-strength wear-resistant lining plate, using cold processing equipment for the lining plate, characterized in that the cold processing equipment for the lining plate includes a processing machine tool (200) for carrying a plate (100), and also includes a laser cutting device (400) and a hole expanding device. A sealing chamber (300) is sleeved outside the laser cutting device (400). Through openings (320) for the plate (100) to pass through are formed on both sides of the sealing chamber (300), and sealing devices (500) are arranged at the lower ends of the through openings (320); It includes the following steps: S1. Transport the plate (100) to the surface of the processing machine tool (200) opposite to the laser cutting device (400), and complete the limiting and fixing of the plate (100); S2. After the plate is fixed, control the laser cutting device (400) to laser cut and form a number of counterbores (110) at predetermined positions on the surface of the plate. After the processing of multiple counterbores (110) is completed, cancel the limiting and fixing; S3. Transport the plate (100) processed in step S2 along the processing machine tool (200) to the outside of the sealing chamber (300) opposite to the hole expanding device; S4. After the plate (100) is opposite to the hole expanding device, limit and fix the plate (100) again, and then use the hole expanding device to perform hole expanding processing on the upper end of the counterbore (110) to complete the cold processing of the high-strength wear-resistant lining plate.

2. The cold working method of a high-strength wear-resistant lining plate according to claim 1, characterized in that, The plate (100) is limited and fixed by a limiting device (600). The limiting device (600) includes limiting rods (610) on both sides of the plate (100). Both of the limiting rods (610) are arranged along the length direction of the processing machine tool (200) and are parallel to each other. It also includes a control block (620) for controlling the horizontal position of the limiting rods (610). By controlling the control block (620), the two limiting rods (610) are moved inward to complete the clamping and limiting of the plate (100).

3. The cold processing method of a high-strength wear-resistant lining plate according to claim 2, wherein, The control block (620) includes an inclined control surface (621). The limiting rod (610) is slidably connected to the control surface (621). During the downward movement of the control block (620), the limiting rod (610) is extruded to move inward. There are two positions of the control block (620), and the two control blocks (620) are symmetrically arranged around the vertical plane.

4. A cold working method for a high-strength wear-resistant lining plate according to claim 3, characterized in that, The control block (620) is fixedly connected to the sealing device (500) and moves synchronously with the sealing device (500).

5. A cold working method for a high-strength wear-resistant lining plate according to claim 4, characterized in that, Two symmetric control blocks (620) form a set of control mechanisms. There are two sets of the control mechanisms arranged front and back, and the two sets of control mechanisms are fixedly connected to the corresponding sealing devices (500).

6. The cold processing method of a high-strength wear-resistant lining plate according to claim 4, characterized in that A sealing bladder (540) is further arranged at the lower end of the sealing device (500). A telescopic air rod (630) is arranged between the lower end of the control block (620) and the processing machine tool (200). The telescopic air rod (630) is communicated with the sealing bladder (540) through a pumping pipeline.

7. A cold working method for a high-strength wear-resistant lining plate according to any one of claims 1 - 6, characterized in that The sealing device (500) includes a sealing bottom plate (510) and sealing side plates (520) located on both sides of the upper end of the sealing bottom plate (510). The two sealing side plates (520) are sleeved outside the sealing chamber (300) and are slidably connected to the sealing chamber (300). A lifting assembly (530) is further provided between the sealing chamber (300) and the sealing bottom plate (510) for controlling the lifting movement of the sealing bottom plate (510).

8. The cold working method of a high-strength wear-resistant lining plate according to claim 1, characterized in that, A negative pressure pipeline (310) is provided on the side wall of the sealing chamber (300), and the negative pressure pipeline (310) is communicated with a negative pressure device.

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