CN219094198U - Inner burr cutter bar lower support roller - Google Patents

Abstract

The utility model discloses a lower supporting roller of an inner burr cutter bar, which relates to the technical field of supporting rollers of inner burr cutter bars. The utility model can reduce the contact area between the lower support roller and the inner wall of the steel pipe, effectively reduce the occurrence probability of iron filings particles pressed into the inner wall of the steel pipe during scraping and reduce the number of the iron filings particles pressed into the inner wall of the steel pipe during the production of the liquid storage cylinder of the shock absorber.

Description

Inner burr cutter bar lower support roller

Technical Field

The utility model relates to the technical field of support rollers of inner burr cutter bars, in particular to a lower support roller of an inner burr cutter bar.

Background

The inner burrs generated in the production of the high-frequency straight welded pipe are removed through the annular inner scraper of the inner burr cutter bar, a smooth inner welding line is formed inside the steel pipe, and subsequent processing and use of the steel pipe are facilitated. At present, the interior burr cutter arbor includes planer tool bit, the interior burr cutter arbor of burring, cutter body and toper uide bushing, and interior burr cutter arbor fixed mounting of burring is on the planer tool bit, and cutter body fixed mounting is in the interior burr cutter arbor front end of burring, toper uide bushing threaded connection in the interior burr cutter arbor front end, is equipped with a running roller in the burring cutter arbor top, and the below is equipped with two running rollers, and the running roller adopts SR convex with the steel pipe contact surface, and its advantage is the increase contact surface, reduces the indentation at running roller and steel pipe inner wall contact position, but has the shortcoming: when the steel tube is slightly poor in molding, the edge forms a positive V shape, the internal molten tumor drops into the steel tube, and is pressed on the inner surface of the steel tube by the outer arc surface of the roller to form pits or pressing pits of residual scrap iron particles, so that the residual scrap iron particles fall off and enter the liquid storage cylinder to block the valve plate, and the shock absorber is invalid. Based on this design a novel interior burr cutter arbor lower support roller, improve the shape of lower support roller, reduce the area of contact of lower support roller and steel pipe inner wall, reduce the probability that iron fillings pressed into the steel pipe inner wall, improve the product percent of pass.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art, and provides the inner burr cutter bar lower support roller, the contact area of the lower support roller and the inner wall of a steel pipe is reduced by improving the shape structure of the lower support roller, the phenomenon that right angles cause indentation on the inner wall of the steel pipe and even damage to the inner wall of the steel pipe is avoided, the occurrence probability that scrap iron particles are pressed into the inner wall of the steel pipe during scraping is effectively reduced when the shock absorber liquid storage cylinder is produced, and if the scrap iron particles are pressed into the inner wall of the steel pipe, the number of the scrap iron particles pressed into the inner wall of the steel pipe can be reduced.

The aim of the utility model is realized by the following technical scheme: the utility model provides an interior burr cutter arbor lower support roller, includes cutter arbor body, tool bit and lower support roller, tool bit and cutter arbor body coupling, lower support roller local embedding is in the bottom of cutter arbor body, lower support roller is hollow cylinder shape, and its circumference lateral wall is the outer arc surface, and is provided with annular semicircle groove on the circumference lateral wall, reduces the area of contact of lower support roller and steel pipe inner wall for when scraping the burr, the iron fillings granule is reduced by the probability of pressing into steel pipe inner wall, also reduces the iron fillings granule number that the steel pipe inner wall was pressed in simultaneously.

Further, the left and right sides of the annular semicircular groove are arranged in an arc shape, the arc is an arc with the radius of 0.5mm, the required roughness of the arc reaches the mirror surface Ra0.4, the polishing mode is adopted, the polishing means that the surface roughness of a workpiece is reduced by utilizing the action of machinery, chemistry or electrochemistry, so that a bright and flat surface is obtained, and the polishing tool and abrasive particles or other polishing media are utilized for carrying out modification processing on the surface of the workpiece.

Furthermore, the bottom of tool bit is upwards inclined along the cutter arbor body, is convenient for avoid the inner structure of steel pipe inner wall or temporarily do not need the other burr positions of handling.

Preferably, the bottom of the cutter head is inclined upwards to form an included angle of 30-60 degrees, so that the length of the cutter head is ensured, and the rest parts which do not need to be treated are avoided.

Further, the top of tool bit is provided with interior scraper, interior scraper is along cutter arbor body upward sloping, and is unanimous with the inclination of tool bit bottom.

The automatic cutting machine is characterized by further comprising an upper supporting roller, wherein the upper supporting roller comprises a first upper supporting roller and a second upper supporting roller, the first upper supporting roller and the second upper supporting roller are respectively arranged on the left side and the right side of the lower supporting roller, the middle parts of the first upper supporting roller and the second upper supporting roller are embedded into a cutter bar body, the first upper supporting roller, the second upper supporting roller and the lower supporting roller form a stable triangular structure, the first upper supporting roller and the second upper supporting roller are respectively used for being in contact with the upper half part and the lower half part of the inner wall of the steel tube, and the stable cutter bar for the inner burrs is guided, so that the inner scraper can accurately reach a designated position.

The beneficial effects of the utility model are as follows:

1. the utility model reduces the contact area between the lower support roller and the inner wall of the steel pipe through the annular semicircular groove, effectively reduces the occurrence probability that scrap iron particles are pressed into the inner wall of the steel pipe during scraping during the production of the liquid storage cylinder of the shock absorber, and simultaneously reduces the number of the scrap iron particles pressed into the inner wall of the steel pipe.

2. According to the utility model, the annular semicircular groove is improved, and the left and right sides of the annular semicircular groove are arranged in an arc shape, so that the right angle is prevented from causing indentation on the inner wall of the steel pipe, and even the inner wall of the steel pipe is prevented from being damaged.

Drawings

FIG. 1 is a schematic view of the structure of an inner burr shank;

FIG. 2 is a schematic view of the structure of the lower backup roll;

in the figure: the cutter bar comprises a cutter bar body, a cutter head, a first upper supporting roller, a lower supporting roller, a ring-shaped semicircular groove, a second upper supporting roller and an inner scraper, wherein the cutter bar body is 1-, the cutter head is 2-, the first upper supporting roller is 3-, the lower supporting roller is 4-, the ring-shaped semicircular groove is 5-, the second upper supporting roller is 6-and the inner scraper is 7-.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The utility model is further described with reference to the drawings and specific examples.

Example 1:

as shown in fig. 1 to 2, an inner burr cutter bar lower support roller comprises a cutter bar body 1, a cutter head 2 and a lower support roller 4, wherein the cutter head 2 is connected with the cutter bar body 1, the lower support roller 4 is locally embedded in the bottom of the cutter bar body 1, the lower support roller 4 is in a hollow cylinder shape, the circumferential side wall of the lower support roller is an outer arc surface, and an annular semicircular groove 5 with a semicircular section and a radius of 3mm is arranged on the circumferential side wall. When the staff is deeply removing burrs to interior burr cutter arbor in the steel pipe inner wall, lower backing roll 4 carries out the guide effect to cutter arbor body 1, along rectilinear movement in the assurance interior burr cutter arbor scraping process, can not deviate the burr position, be favorable to guaranteeing the degree of depth requirement of burr when scraping, annular semicircle groove 5 is used for reducing the area of contact of lower backing roll 4 and steel pipe inner wall, the probability that iron fillings granule pressed into steel pipe inner wall when reducing the scraping also reduces the iron fillings granule number that the steel pipe inner wall was pressed in simultaneously, the proportion of reduction granule number is about 30% -40%.

Example 2:

as shown in fig. 1, the present embodiment improves the cutter head 2 on the basis of embodiment 1, the bottom of the cutter head 2 is inclined upward along the cutter bar body 1, and the included angle formed by the upward inclination of the bottom of the cutter head 2 is 30-60 degrees. When the inner wall of the steel pipe is provided with an inner bulge or other burrs on the inner wall of the steel pipe, the bottom of the tool bit 2 can avoid the bulge or the burrs, so that the inner wall structure of the steel pipe is prevented from being scratched and damaged, the other burrs are prevented from being pressed into the inner wall of the steel pipe, and the difficulty of removing the burrs is increased.

The top of tool bit 2 is provided with interior scraper 7, and interior scraper 7 is along cutter arbor body 1 upward sloping, and unanimous with the inclination of tool bit 2 bottom, and the top of interior scraper 7 is parallel with cutter arbor body 1, is convenient for scrape the burr of steel pipe inner wall, avoids damaging the steel pipe inner wall simultaneously.

Still include the backing roll, go up backing roll and go up backing roll 6 including first upper backing roll 3 and second, first upper backing roll 3, second upper backing roll 6 set up respectively in the left and right sides of lower backing roll 4, and the middle part embedding cutter arbor body 1 of first upper backing roll 3 and second upper backing roll 6, the top height of first upper backing roll 3 and second upper backing roll 6 is highly leveled with the top of interior scraper 7, upper backing roll and lower backing roll 4 form stable triangle-shaped structure, be used for contacting the upper half and the lower half of steel pipe inner wall respectively, more stable leads interior burr cutter arbor.

Example 3:

as shown in fig. 2, the present embodiment improves the annular semicircular groove 5 on the basis of embodiment 2, the left and right sides of the annular semicircular groove 5 are arc-shaped, and are arc-shaped with a radius of 0.5mm, the arc requires roughness to reach the mirror surface ra0.4, and a polishing mode is adopted to obtain a smooth surface or mirror surface gloss, so as to avoid the right angle from causing indentation on the inner wall of the steel pipe and even damage to the inner wall of the steel pipe.

The foregoing is merely a preferred embodiment of the utility model, and it is to be understood that the utility model is not limited to the form disclosed herein but is not to be construed as excluding other embodiments, but is capable of numerous other combinations, modifications and environments and is capable of modifications within the scope of the inventive concept, either as taught or as a matter of routine skill or knowledge in the relevant art. And that modifications and variations which do not depart from the spirit and scope of the utility model are intended to be within the scope of the appended claims.

Claims (6)

1. The utility model provides an interior burr cutter arbor lower support roller, includes cutter arbor body (1), tool bit (2) and lower support roller (4), tool bit (2) are connected with cutter arbor body (1), lower support roller (4) local embedding is in the bottom of cutter arbor body (1), its characterized in that: the lower support roller (4) is in a hollow cylinder shape, the circumferential side wall of the lower support roller is an outer arc surface, and an annular semicircular groove (5) is formed in the circumferential side wall.

2. The lower support roller for an inner burr shank as claimed in claim 1, wherein: the left and right sides of the annular semicircular groove (5) are arranged in an arc shape.

3. An inner burr shank lower support roller as claimed in claim 1 or 2, wherein: the bottom of the cutter head (2) is inclined upwards along the cutter bar body (1).

4. A lower inner burr bar support roller as claimed in claim 3, wherein: the bottom of the cutter head (2) is inclined upwards to form an included angle of 30-60 degrees.

5. The lower support roller for an inner burr shank as defined in claim 4, wherein: the top of tool bit (2) is provided with interior scraper (7), interior scraper (7) are along cutter arbor body (1) upward sloping, and unanimous with the inclination of tool bit (2) bottom.

6. The lower support roller for an inner burr shank as defined in claim 5, wherein: the novel cutter bar comprises a cutter bar body (1), and is characterized by further comprising an upper supporting roller, wherein the upper supporting roller comprises a first upper supporting roller (3) and a second upper supporting roller (6), the first upper supporting roller (3) and the second upper supporting roller (6) are respectively arranged on the left side and the right side of the lower supporting roller (4), and the middle parts of the first upper supporting roller (3) and the second upper supporting roller (6) are embedded into the cutter bar body (1).

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