CN110919071A

CN110919071A - Embossed flat steel pipe cutting machine

Info

Publication number: CN110919071A
Application number: CN201911131024.XA
Authority: CN
Inventors: 高银胜; 施利彪; 丁瑞武
Original assignee: Jiangsu United Polytron Technologies Inc
Current assignee: Jiangsu United Polytron Technologies Inc
Priority date: 2019-11-19
Filing date: 2019-11-19
Publication date: 2020-03-27

Abstract

The invention discloses an embossing flat steel pipe cutting machine which comprises a rack, a feeding clamp, an aligning clamp, a fastening clamp and a cutting tool, wherein the rack is provided with a transverse sliding rail, the feeding clamp is in sliding fit with the transverse sliding rail, the aligning clamp and the fastening clamp are fixedly connected to the rack, a cutting gap is formed between the aligning clamp and the fastening clamp, a tool bit of the cutting tool is arranged in the cutting gap and used for cutting a flat steel pipe, the aligning clamp comprises a fixed base, an aligning top plate and a top block, the aligning top plate is fixedly connected to the fixed base, the top block can move longitudinally, the top surface of the top block and the bottom surface of the aligning top plate are matched to clamp the embossing flat steel pipe, the top surface of the top block is provided with an embossing block group with the same embossing pattern as that of the flat steel pipe, the embossing block group comprises a plurality of embossing blocks, and the side edges of the embossing blocks are inclined planes inclined towards the center. The invention can ensure the cutting position to be accurate in size, improve the product precision and ensure the yield.

Description

Embossed flat steel pipe cutting machine

Technical Field

The invention relates to a steel pipe cutting machine, in particular to an embossed flat steel pipe cutting machine.

Background

As shown in fig. 1, the embossed flat steel pipe has a pattern of depressions on the flat surface of the flat steel pipe, and the pattern of depressions is formed by rolling, and theoretically, the distance from the starting point of each pattern to the starting point of the next pattern on the flat steel pipe should be the same, i.e., L1-L2-L3-L4. However, in the actual production process, the pattern calendering process extends the flat steel tube wall, and the extension amount of the flat steel tube wall cannot be accurately controlled, so that the distance from the starting point of each pattern to the starting point of the next pattern varies after the embossed flat steel tube is produced and formed, in one example, L1-97.1 mm, L2-97.3 mm, L3-97.18 mm, and L4-97.4 mm. According to the existing cutting method of the cutting machine, the steel pipe is cut again after being pushed for a preset distance by taking the middle position of two sections of patterns as a reference, so that the cut steel pipe has the same length and size each time, but the distance from the starting point or the ending point of the pattern to the cutting end is different, and the distance does not meet the requirement of the product size. When such errors accumulate to a sufficient extent, the cutting position may even be in a pattern that completely rejects the product.

Disclosure of Invention

Aiming at the defects of the prior art, the invention aims to provide a cutting machine for an embossed flat steel pipe, which solves the problem of inaccurate cutting size caused by uneven size among patterns due to uneven material extension in the embossing process.

The technical scheme of the invention is as follows: an embossing flat steel pipe cutting machine comprises a rack, a feeding clamp, an embossing clamp, a fastening clamp and a cutting tool, wherein the feeding clamp, the embossing clamp and the fastening clamp are sequentially and transversely arranged and installed on the rack, a transverse sliding rail is arranged on the rack, the feeding clamp is in sliding fit with the transverse sliding rail, the feeding clamp is used for clamping a flat steel pipe and transversely moving, the embossing clamp and the fastening clamp are fixedly connected to the rack, the fastening clamp is used for clamping the flat steel pipe and fixing the transverse position of the flat steel pipe, a cutting gap is arranged between the embossing clamp and the fastening clamp, a tool bit of the cutting tool is arranged in the cutting gap and used for cutting the flat steel pipe, the embossing clamp comprises a fixed base, an embossing top plate and a top block, the embossing top plate is fixedly connected to the fixed base, the top block can longitudinally move, the top surface of the top block is matched with the bottom surface of the embossing top plate to clamp the embossing flat steel pipe, the top surface of the top block is provided with a convex pattern block group which has the same embossing pattern as that of the flat steel pipe, the convex pattern block group comprises a plurality of convex pattern blocks, and the side edges of the convex pattern blocks are inclined planes inclined towards the pattern center.

The cutting machine utilizes the feeding clamp to push the embossed flat steel pipe forward by the distance required to be cut, but slight deviation possibly exists between the distance between the cutting position and the pattern position due to the fact that the material extension length is changed by the embossing process, at the moment, the embossed pattern blocks are pushed into the embossed patterns of the flat steel pipe by utilizing the upward pushing action of the pattern aligning clamp, the inclined planes of the embossed pattern blocks enable the flat steel pipe to generate corresponding forward and backward displacement to eliminate the distance deviation, and the embossed flat steel pipe with accurate size can be cut by accurately and stably keeping the relative distance between the cutter head of the cutting tool and the pattern aligning clamp.

Further, the feeding clamp comprises a sliding block, a feeding top plate and a feeding top block, the sliding block is in sliding fit with the transverse sliding rail, the sliding block comprises two side columns, the feeding top plate is fixedly connected to the top ends 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 is matched with the bottom surface of the feeding top plate to clamp the embossed flat steel pipe.

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

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

Further, the fastening clamp comprises a fixing block, a fixing top plate and a fixing top block, the fixing block is fixedly connected with the rack, the fixing block comprises two stand columns, the fixing top plate is fixedly connected to the top ends of the stand columns, the fixing top block is arranged between the stand columns and can move up and down, and the top surface of the fixing top block is matched with the bottom surface of the fixing top plate to clamp the embossing flat steel pipe.

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

Compared with the prior art, the invention has the advantages that: the steel pipe position can be automatically corrected according to the pattern position during cutting, the accuracy of the cutting position and the pattern space is ensured, the product precision is improved, and the yield is ensured. The mode that adopts roof and kicking block cooperation centre gripping can quick centre gripping or release flat steel pipe, sets up a plurality of horizontal chute feeders, can cut many flat steel pipes of knurling simultaneously to flower groove, fastening groove, improves production efficiency.

Drawings

Fig. 1 is a schematic view of an embossed flat steel tube.

Fig. 2 is a schematic structural view of the embossed flat steel pipe cutting machine.

FIG. 3 is a schematic view of the feeding clamp, the aligning clamp and the fastening clamp.

Fig. 4 is a schematic view of the bit position structure of the cutting tool.

FIG. 5 is a schematic view of the structure of the top surface of the opposite flower top block matching with the embossed flat steel tube.

Detailed Description

The present invention is further illustrated by the following examples, which are not to be construed as limiting the invention thereto.

Referring to fig. 2 to 5, the embossed flat steel pipe cutting machine of the present embodiment includes a frame 1, a feeding clamp 2, an aligning clamp 3, a fastening clamp 4 and a cutting tool 5, and the conventional cutting machine generally includes only the frame 1, the feeding clamp 2, the fastening clamp 4 and the cutting tool 5, and cannot adjust the cutting position in real time according to the actual size of the embossed flat steel pipe. Therefore, the register jig 3 is added in this embodiment. The rack 1 is used for supporting the whole device, the transverse sliding rail 6 is arranged on the rack 1, the feeding clamp 2 is in sliding fit with the transverse sliding rail 6, the driving motor 7 and the lead screw are further arranged on the rack 1, and the feeding clamp 2 and the lead screw are matched to form a lead screw nut kinematic pair so as to slide on the transverse sliding rail 6. The embodiment only provides a way for driving the feeding clamp 2 to move transversely, and it can be understood that the feeding clamp 2 can also be directly driven by a driving device such as a hydraulic oil cylinder, an air cylinder or a linear motor.

The feeding clamp 2 comprises a sliding block 21, a feeding top plate 22 and a feeding top block 23, wherein the sliding block 21 is in sliding fit with the transverse sliding rail 6, the sliding block 21 comprises two side columns 24, and the feeding top plate 22 is fixedly connected to the top ends of the side columns 24 through screws. The feeding ejector block 23 is arranged between the two side columns 24 and can move up and down, specifically, an air cylinder can be arranged on the sliding block 21, an air cylinder telescopic rod is in the vertical direction, and the air cylinder telescopic rod drives the feeding ejector block 23 to move up and down. The top surface of the feeding top block 23 is matched with the bottom surface of the feeding top plate 22 to clamp the embossed flat steel pipe. In order to cut a plurality of 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 one embossed flat steel pipe is placed in each transverse feeding groove 23 a.

In front of the feeding clamp 2, the registration clamp 3 and the fastening clamp 4 are fixed on the frame 1 in sequence. A cutting gap is provided between the register clamp 3 and the fastening clamp 4, and a cutter head 51 of the cutting tool 5 is provided in the cutting gap for cutting the flat steel pipe. The fastening clamp 4 is similar to the feeding clamp 2 in structure and comprises a fixing block 41, a fixing top plate 42 and a fixing top block 43, wherein the fixing block 41 is fixedly connected with the rack 1. The fixing block 41 includes two columns 44, and the fixing top plate 42 is fixedly connected to the top ends of the columns 44. The fixed top block 43 is disposed between the columns 44 and is movable up and down, which may also be driven by a pneumatic 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 and the bottom surface of the fixed top plate 42 are matched to clamp the embossed flat steel pipe.

The pattern matching clamp 3 comprises a fixed base 31, a pattern matching top plate 32 (not shown in fig. 3 and 4) and a top block 33, wherein two side columns 34 can also be arranged on the fixed base 31, the pattern matching top plate 32 is fixedly connected to the top surfaces of the side columns 34, and the top block 33 is driven by an air cylinder to be positioned between the two side columns 34 and can move longitudinally. The top surface of the top block 33 is provided with a plurality of transverse flower aligning grooves 33a in parallel, each transverse flower aligning groove 33a is provided with a convex flower block group which is the same as the embossing pattern of the flat steel pipe, each convex flower block group comprises a plurality of convex flower blocks 33b, and the side edges of the convex flower blocks 33b are inclined planes inclined towards the center of the flower pattern. As shown in fig. 5, when the top block 33 moves upward, the convex block 33b is embedded in the embossed pattern of the flat steel pipe 6, and if the embossed pattern deviates laterally from the convex block 33b due to the presence of the inclined surface, the flat steel pipe 6 is displaced laterally to adjust the lateral position.

When the cutting machine of the invention cuts the flat steel tube, the flat steel tube is manually placed on the top block 33 of the pattern aligning clamp 3, and the embossing patterns of the flat steel tube 6 are aligned on the convex pattern block 33b to form a first datum point confirmation. After confirmation, the power cutting machine is started to operate, the feeding clamp 2 and the fastening clamp 4 are clamped simultaneously, the pattern clamp 3 is in a loose state, the cutter head of the cutting tool 5 starts to cut, and the pipe head cutting is completed. At this moment, feeding clamp 2, fastening clamp 4 and register anchor clamps 3 all loosen, feeding clamp 2 rolls back a distance back and presss from both sides tightly once more and the antedisplacement carries band steel pipe 6 forward, then feeding clamp 2 and fastening clamp 4 press from both sides tightly simultaneously, register anchor clamps 3 unclamp the state, and the tool bit of cutting tool 5 begins to cut the pipe tail and cuts and accomplish, obtains first section band steel pipe this moment. Because the pattern distance between the first section of flat steel pipe and the pattern distance between the second section of flat steel pipe may have a certain error, after the pipe tail of the first section of flat steel pipe is cut, the feeding clamp 2 does not return, but the feeding clamp 2 and the fastening clamp 4 are loosened, the opposite clamp 3 is in a clamping state, the inclined plane of the convex pattern block drives the flat steel pipe 6 to generate small displacement in the front and back direction, the distance is accurately controlled by taking the pattern position as a reference, then the feeding clamp 2 clamps, the cutter head of the cutting cutter 5 starts to cut, at the moment, the pipe head of the second section of flat steel pipe is cut, then according to the cutting mode of the first section of flat steel pipe, the feeding clamp 2 and the opposite clamp 3 are loosened, the feeding clamp 2 moves back and then moves forward for a certain distance, the fastening clamp 4 clamps clamp and then cuts the pipe tail, at the moment, the second section of flat steel pipe is.

Claims

1. An embossing flat steel pipe cutting machine is characterized by comprising a rack, a feeding clamp, an aligning clamp, a fastening clamp and a cutting tool, wherein the feeding clamp, the aligning clamp and the fastening clamp are transversely arranged and installed on the rack, a transverse sliding rail is arranged on the rack, the feeding clamp is in sliding fit with the transverse sliding rail, the feeding clamp is used for clamping a flat steel pipe and transversely moving, the aligning clamp and the fastening clamp are fixedly connected to the rack, the fastening clamp is used for clamping the flat steel pipe and fixing the transverse position of the flat steel pipe, a cutting gap is arranged between the aligning clamp and the fastening clamp, a tool bit of the cutting tool is arranged in the cutting gap and used for cutting the flat steel pipe, the aligning clamp 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 longitudinally move, the top surface of the top block and the bottom surface of the opposite-pattern top plate are matched and clamped with the embossed flat steel pipe, a convex pattern block group with the same embossing patterns as those of the flat steel pipe is arranged on the top surface of the top block, the convex pattern block group comprises a plurality of convex pattern blocks, and the side edges of the convex pattern blocks are inclined planes inclined towards the center of the patterns.

2. The embossed flat steel tube cutting machine according to claim 1, wherein the feeding clamp comprises a sliding block, a feeding top plate and a feeding top block, the sliding block is in sliding fit with the transverse sliding rail, the sliding block comprises two side columns, the feeding top plate is fixedly connected to the top ends 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 is matched with the bottom surface of the feeding top plate to clamp the embossed flat steel tube.

3. The embossed flat steel tube cutting machine according to claim 2, wherein a plurality of transverse feed grooves are arranged in parallel on the top surface of the feed top block.

4. The embossed flat steel tube cutting machine according to claim 1, wherein the top surface of the top block is provided with a plurality of transverse flower grooves in parallel, and the convex flower block group is arranged in the transverse flower grooves.

5. The embossing flat steel tube cutting machine according to claim 1, wherein the fastening fixture comprises a fixing block, a fixing top plate and a fixing top block, the fixing block is fixedly connected with the rack, the fixing block comprises two upright columns, the fixing top plate is fixedly connected to the top ends of the upright columns, the fixing top block is arranged between the upright columns and can move up and down, and the top surface of the fixing top block and the bottom surface of the fixing top plate are matched to clamp the embossing flat steel tube.

6. The embossed flat steel tube cutting machine according to claim 5, wherein the top surface of the fixed top block is provided with a plurality of transverse fastening grooves in parallel.