Embossed flat steel pipe cutting machine

Abstract

The invention discloses an embossed flat steel pipe cutting machine, comprising a frame, a feeding fixture, a pattern fixture, a fastening fixture and a cutting tool, the frame is provided with a transverse slide rail, the feeding fixture is slidably matched with the transverse slide rail, the pattern fixture and the fastening fixture are fixedly connected to the frame, a cutting gap is provided between the pattern fixture and the fastening fixture, the tool head of the cutting tool is arranged in the cutting gap for cutting the flat steel pipe, the pattern fixture comprises a fixed base, a pattern top plate and a top block, the pattern top plate is fixedly connected to the fixed base, the top block can move longitudinally, the top surface of the top block cooperates with the bottom surface of the pattern top plate to clamp the embossed flat steel pipe, the top surface of the top block is provided with a convex pattern block group identical to the embossed pattern of the flat steel pipe, the convex pattern block group comprises a plurality of convex pattern blocks, and the side of the convex pattern block is an inclined surface inclined toward the center of the pattern. The invention can ensure the precise size of the cutting position, improve the product precision, and ensure the yield rate.

Description

Technical Field

[0001] The invention relates to a steel pipe cutting machine, in particular to an embossed flat steel pipe cutting machine. Background Art

[0002] Embossed flat steel tube structure Figure 1 As shown, there are concave patterns on the flat surface of the flat steel tube, which are formed by calendering. In theory, the distance from the starting point of each section of the pattern to the starting point of the next section of the pattern on the flat steel tube should be the same, that is, L1=L2=L3=L4. However, in the actual production process, the calendering process of the pattern causes the flat steel tube wall to extend, and the extension of the flat steel tube wall cannot be accurately controlled, which also causes the distance from the starting point of each section of the pattern to the starting point of the next section of the pattern after the embossed flat steel tube is produced and formed to be different. In one example, L1=97.1mm, L2=97.3mm, L3=97.18mm, and L4=97.4mm. According to the existing cutting method of the cutting machine, the middle position of the two sections of the pattern will be cut and the cutting surface will be used as the reference. The steel pipe is pushed a predetermined distance and then cut again. In this way, the steel pipe cut each time has the same length, but the distance from the starting point or end point of the pattern to the cutting end will be different, which does not meet the product size requirements. When such errors accumulate to a sufficient level, the cutting position may even be on the pattern, making the product completely scrapped. Summary of the invention

[0003] In view of the above-mentioned defects of the prior art, the task of the present invention is to provide an embossed flat steel tube cutting machine to solve the problem of inaccurate cutting size caused by uneven size between patterns due to different material extension during the embossing process.

[0004] The technical solution of the present invention is as follows: an embossed flat steel pipe cutting machine comprises a frame, a feeding clamp, a pattern clamp, a fastening clamp and a cutting tool, wherein the feeding clamp, the pattern clamp and the fastening clamp are sequentially arranged and installed on the frame in a transverse arrangement, the frame is provided with a transverse slide rail, the feeding clamp is slidably matched with the transverse slide rail, the feeding clamp is used to clamp the flat steel pipe and move it transversely, the pattern clamp and the fastening clamp are fixedly connected to the frame, the fastening clamp is used to clamp the flat steel pipe and fix the transverse position of the flat steel pipe, the pattern clamp and the fastening clamp are ... A cutting gap is provided between the tools, and the tool head of the cutting tool is arranged in the cutting gap for cutting the flat steel tube. The aligning fixture comprises a fixed base, an aligning top plate and a top block. The aligning top plate is fixedly connected to the fixed base, and the top block can move longitudinally. The top surface of the top block cooperates with the bottom surface of the aligning top plate to clamp the embossed flat steel tube. The top surface of the top block is provided with a convex pattern block group with the same embossed pattern as the flat steel tube. The convex pattern block group includes a plurality of convex pattern blocks, and the side of the convex pattern block is an inclined surface inclined toward the center of the pattern.

[0005] The cutting machine of the present invention utilizes a feeding clamp to push the embossed flat steel tube forward the distance required for cutting. However, at this time, due to the embossing process, the extension length of the material changes, resulting in a slight deviation in the distance between the cutting position and the pattern position. At this time, the upward action of the pattern clamp is utilized to make the convex pattern block push into the embossed pattern of the flat steel tube. The inclined surface of the convex pattern block causes the flat steel tube to produce a corresponding forward and backward displacement to eliminate the distance deviation. The relative distance between the cutting tool head and the pattern clamp is accurate and stable, so that an embossed flat steel tube with precise size can be cut.

[0006] Furthermore, the feeding fixture includes a sliding block, a feeding top plate and a feeding top block, the sliding block is slidably matched with the transverse slide rail, the sliding block includes two side columns, the feeding top plate is fixedly connected to the top end of the side columns, the feeding top block is arranged between the side columns and can move up and down, and the top surface of the feeding top block cooperates with the bottom surface of the feeding top plate to clamp the embossed flat steel tube.

[0007] Furthermore, a plurality of transverse feeding grooves are arranged in parallel on the top surface of the feeding top block.

[0008] Furthermore, a plurality of transverse grooves are arranged in parallel on the top surface of the top block, and the convex pattern block group is arranged in the transverse grooves.

[0009] Furthermore, the fastening clamp includes a fixed block, a fixed top plate and a fixed top block, the fixed block is fixedly connected to the frame, the fixed block includes two columns, the fixed top plate is fixedly connected to the top ends of the columns, the fixed top block is arranged between the columns and can move up and down, and the top surface of the fixed top block cooperates with the bottom surface of the fixed top plate to clamp the embossed flat steel pipe.

[0010] Furthermore, a plurality of transverse fastening grooves are arranged in parallel on the top surface of the fixed top block.

[0011] Compared with the prior art, the advantages of the present invention are: when cutting, the position of the steel pipe can be automatically corrected according to the position of the pattern, ensuring the accuracy of the cutting position and the pattern spacing, improving product accuracy, and ensuring the yield rate. The top plate and the top block are used to clamp the flat steel pipe quickly, and a number of horizontal feeding slots, flower slots, and fastening slots are provided to simultaneously cut and process multiple embossed flat steel pipes, thereby improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 Schematic diagram of embossed flat steel tube.

[0013] Figure 2 It is a structural schematic diagram of the embossed flat steel tube cutting machine.

[0014] Figure 3 It is a schematic diagram of the feeding fixture, alignment fixture, and fastening fixture structure.

[0015] Figure 4 Schematic diagram of the cutting tool head position structure.

[0016] Figure 5 It is a schematic diagram of the structure of the top surface of the embossed top block and the embossed flat steel tube. DETAILED DESCRIPTION

[0017] The present invention will be further described below in conjunction with the embodiments, but are not intended to be limiting of the present invention.

[0018] Please combine Figures 2 to 5 As shown, the embossed flat steel pipe cutting machine of this embodiment includes a frame 1, a feeding fixture 2, a pattern fixture 3, a fastening fixture 4 and a cutting tool 5. The previous cutting machines generally only include a frame 1, a feeding fixture 2, a fastening fixture 4 and a cutting tool 5, and it is impossible to adjust the cutting position in real time according to the actual size of the embossed flat steel pipe. Therefore, the pattern fixture 3 is added in this embodiment. The function of the frame 1 is to provide support for the entire device. A transverse slide rail 6 is provided on the frame 1, wherein the feeding fixture 2 is slidably matched with the transverse slide rail 6. A driving motor 7 and a lead screw are also provided on the frame 1, and the feeding fixture 2 and the lead screw cooperate to form a lead screw nut kinematic pair so as to slide on the transverse slide rail 6. This embodiment only provides a way to drive the feeding fixture 2 to move horizontally. It can be understood that the feeding fixture 2 can also be directly driven by a driving device such as a hydraulic cylinder or a cylinder or a linear motor to realize the present invention.

[0019] The feeding fixture 2 includes a sliding block 21, a feeding top plate 22 and a feeding top block 23, wherein the sliding block 21 is slidably matched with the transverse slide rail 6, the sliding block 21 includes two side columns 24, and the feeding top plate 22 is fixedly connected to the top of the side column 24 by screws. The feeding top block 23 is arranged between the two side columns 24 and can move up and down. Specifically, a cylinder can be arranged on the sliding block 21, and the cylinder telescopic rod is in a vertical direction, and the feeding top block 23 is driven by the cylinder telescopic rod to move up and down. The top surface of the feeding top block 23 cooperates with the bottom surface of the feeding top plate 22 to clamp the embossed flat steel pipe. In order to cut multiple embossed flat steel pipes at one time, a plurality of transverse feeding grooves 23a are arranged in parallel on the top surface of the feeding top block 23, and an embossed flat steel pipe is placed in each transverse feeding groove 23a.

[0020] In front of the feeding clamp 2, the pattern clamp 3 and the fastening clamp 4 are fixed on the frame 1 in sequence. A cutting gap is provided between the pattern clamp 3 and the fastening clamp 4, and the tool head 51 of the cutting tool 5 is arranged in the cutting gap for cutting the flat steel pipe. The structure of the fastening clamp 4 is similar to that of the feeding clamp 2, including a fixed block 41, a fixed top plate 42 and a fixed top block 43, and the fixed block 41 is fixedly connected to the frame 1. The fixed block 41 includes two columns 44, and the fixed top plate 42 is fixedly connected to the top of the column 44. The fixed top block 43 is arranged between the columns 44 and can move up and down, and it can also be driven by a cylinder. The top surface of the fixed top block 43 is provided with a plurality of transverse fastening grooves 43a in parallel, and the top surface of the fixed top block 43 cooperates with the bottom surface of the fixed top plate 42 to clamp the embossed flat steel pipe.

[0021] The alignment fixture 3 includes a fixed base 31, an alignment top plate 32 (in Figure 3 and Figure 4 The top block 33 is provided with a plurality of convex pattern blocks 33b, and the side edges of the convex pattern blocks 33b are inclined toward the center of the pattern. Figure 5 As shown, when the top block 33 moves upward, the convex block 33b will be embedded in the embossed pattern of the flat steel tube 6. Due to the existence of the inclined surface, if the embossed pattern and the convex block 33b have a lateral deviation, the flat steel tube 6 will produce a lateral displacement to adjust the lateral position.

[0022] When the cutting machine of the present invention cuts the flat steel tube, the flat steel tube is manually placed on the top block 33 of the alignment fixture 3, and the embossed pattern of the flat steel tube 6 is aligned on the convex pattern block 33b to form the first reference point confirmation. After confirmation, the cutting machine is started, the feeding fixture 2 and the fastening fixture 4 are clamped at the same time, the alignment fixture 3 is released, the blade of the cutting tool 5 starts cutting, and the cutting of the tube head is completed. At this time, the feeding fixture 2, the fastening fixture 4 and the alignment fixture 3 are all released, the feeding fixture 2 retreats a distance and then clamps again and moves forward to transport the flat steel tube 6 forward, then the feeding fixture 2 and the fastening fixture 4 are clamped at the same time, the alignment fixture 3 is released, and the blade of the cutting tool 5 starts cutting the tube tail and the cutting is completed, and the first section of the flat steel tube is obtained. Since there may be a certain error between the pattern distance of the first section of flat steel pipe and the pattern distance of the second section of flat steel pipe and the designed distance, after the cutting of the tube tail of the first section of flat steel pipe is completed, the feeding clamp 2 does not retreat first, but the feeding clamp 2 and the fastening clamp 4 are loosened, and the pattern clamp 3 is in a clamped state, and the flat steel pipe 6 is driven to produce a small forward and backward displacement through the inclined surface of the convex pattern block to accurately control the distance based on the pattern position, and then the feeding clamp 2 is clamped, and the blade head of the cutting tool 5 starts cutting. At this time, the cutting of the tube head of the second section of flat steel pipe is completed, and then according to the cutting method of the first section of flat steel pipe, the feeding clamp 2 and the pattern clamp 3 are both loosened, the feeding clamp 2 retreats and then moves forward a certain distance, and the fastening clamp 4 is clamped to complete the cutting of the tube tail. At this time, the second section of flat steel pipe is obtained, and the cutting of each section is completed by analogy.

Claims

1. An embossed flat steel pipe cutting machine, characterized in that: It includes a frame, a feeding clamp, a pattern clamp, a fastening clamp and a cutting tool. The feeding clamp, the pattern clamp and the fastening clamp are arranged horizontally and installed on the frame. The frame is provided with a horizontal slide rail. The feeding clamp is slidably matched with the horizontal slide rail. The feeding clamp is used to clamp the flat steel pipe and move it horizontally. The pattern clamp and the fastening clamp are fixedly connected to the frame. The fastening clamp is used to clamp the flat steel pipe and fix the horizontal position of the flat steel pipe. A cutting gap is provided between the pattern clamp and the fastening clamp. The cutter head of the cutting tool is arranged in the cutting gap for cutting the flat steel pipe. The aligning fixture comprises a fixed base, an aligning top plate and a top block, wherein the aligning top plate is fixedly connected to the fixed base, the top block can move longitudinally, the top surface of the top block cooperates with the bottom surface of the aligning top plate to clamp the embossed flat steel tube, the top surface of the top block is provided with a convex pattern block group having the same embossed pattern as the flat steel tube, the convex pattern block group comprises a plurality of convex pattern blocks, and the side of the convex pattern block is an inclined surface inclined toward the center of the pattern; The feeding fixture comprises a sliding block, a feeding top plate and a feeding top block, the sliding block is slidably matched with the transverse slide rail, the sliding block comprises two side columns, the feeding top plate is fixedly connected to the top end of the side column, the feeding top block is arranged between the side columns and can move up and down, and the top surface of the feeding top block cooperates with the bottom surface of the feeding top plate to clamp the embossed flat steel tube; The fastening fixture comprises a fixed block, a fixed top plate and a fixed top block, the fixed block is fixedly connected to the frame, the fixed block comprises two columns, the fixed top plate is fixedly connected to the top of the columns, the fixed top block is arranged between the columns and can move up and down, and the top surface of the fixed top block cooperates with the bottom surface of the fixed top plate to clamp the embossed flat steel pipe; When the embossed flat steel tube cutting machine is cutting, the feeding clamp and the fastening clamp are loosened, and the alignment clamp is in a clamped state. The embossed flat steel tube is driven to move forward and backward by the inclined surface of the convex pattern block, and the distance is controlled based on the pattern position. Then the feeding clamp is clamped, and the blade head of the cutting tool starts cutting to complete the cutting of the tube head of the flat steel tube. Then the feeding clamp and the alignment clamp are loosened, and the feeding clamp retreats a distance and then is clamped again and moved forward to transport the flat steel tube forward. Then the feeding clamp and the fastening clamp are clamped at the same time, the alignment clamp is in a loosened state, and the blade head of the cutting tool starts cutting to complete the cutting of the tube tail of the flat steel tube.

2. The embossed flat steel pipe cutting machine according to claim 1, characterized in that: The top surface of the top block is provided with a plurality of transverse grooves in parallel, and the convex pattern block group is arranged in the transverse grooves; the top surface of the feeding top block is provided with a plurality of transverse feeding grooves in parallel; the top surface of the fixed top block is provided with a plurality of transverse fastening grooves in parallel.

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