CN113442050B - A steel pipe internal polishing machine and polishing method thereof - Google Patents

Abstract

The invention provides a steel pipe internal polishing machine and a polishing method thereof. One side of the top of the support base is provided with a material loading and discharging mechanism, and the other side of the top of the support base is provided with a material discharging and discharging mechanism. There is a rotating support mechanism between the discharge mechanisms, and a clamping device is arranged on the rotating supporting mechanism. The clamping device clamps the pipe to be polished and drives the pipe to be polished to rotate. One side of the rotating supporting mechanism is provided with a dust removal mechanism, and the rotating supporting mechanism The other side is provided with a chip removal polishing mechanism. The chip removal polishing mechanism includes a chip removal polishing head and a feeding mechanism. The chip removal polishing head is located in the pipe to be polished and is driven by the feed mechanism along the length of the pipe to be polished. direction movement. The invention can support steel pipes of different diameters, can adjust the height of the chip removal polishing head, realizes the applicability to the pipe fittings to be polished of different pipe diameters and the consistency of precision during chip removal polishing, high polishing efficiency and long service life , to avoid environmental pollution.

Description

A steel pipe internal polishing machine and polishing method thereof

technical field

The invention belongs to the technical field of steel pipe production, and in particular relates to a steel pipe internal polishing machine and a polishing method thereof.

Background technique

Pipe parts have good mechanical properties and corrosion resistance, and are widely used in aerospace, marine, nuclear energy, medical equipment, petrochemical and other fields. Pipe parts have good corrosion resistance and are mainly used for fluid delivery pipes for high-end products. In recent years, with the development and innovation of technology, people's demand for pipe parts is increasing day by day, and their quality requirements are also increasing. Since reducing the roughness of the inner wall of the pipe fitting can reduce the resistance of the inner wall to the fluid and the adsorption effect of the material on the inner wall, people have higher and higher requirements for the roughness of the inner wall of the pipe fitting. In the early stage of pipe fittings processing, the inner surface is relatively rough, so necessary polishing equipment is required, but during the polishing process, there will be a lot of waste residues, resulting in a decline in the quality of the working environment, and currently in the process of processing, it is necessary to pass through the fixing parts Fixing pipe parts greatly wastes unnecessary time.

The most common use of existing polishing equipment is to use internal polishing equipment, and the clamping mechanism of the internal polishing equipment is usually to place the pipe fittings on the bracket manually, and then perform manual construction pressure or use a heavy pressure plate to press the pipe fittings. The following technical defects: not only increase the labor cost, time-consuming and labor-intensive, but also increase the scratches on the surface of the pipe fittings, and there will still be vibrations during the polishing process, thereby reducing the polishing effect and the production quality of the product.

Another way to reduce the roughness of the inner wall of the pipe fitting is to use mechanical polishing, mainly by inserting the polishing rod into the pipe wall, and driving the polishing rod to rotate manually or by a motor, so that the polishing rod and the inner wall of the pipe fitting are in contact with each other and rubbed, thereby Achieve the effect of inner wall polishing. There are the following technical defects: purely mechanical grinding, the inner wall of pipe fittings with different diameters is not polished well, and often some subtle places are not polished in place, resulting in poor overall polishing effect.

How to design a steel pipe internal polishing machine and its polishing method, how to realize the applicability of the pipe fittings to be polished with different pipe diameters and the consistency of precision during chip removal and polishing have become problems that need to be solved urgently.

Contents of the invention

In view of the shortcomings of the prior art described above, the object of the present invention is to provide a steel pipe internal polishing machine, which is used to solve the problem that the clamping mechanism of the internal polishing equipment in the prior art usually uses manual placement of the pipe fittings on the bracket, Then carry out manual construction pressure or use a heavy pressure plate to press the pipe fittings, which not only increases the labor cost, time-consuming and labor-intensive, but also increases the scratches on the surface of the pipe fittings, and there will still be vibrations during the polishing process, thereby reducing the cost. The polishing effect also reduces the production quality of the product; while the grinding rod is inserted into the pipe wall, and the grinding rod is driven to rotate by hand or by a motor, the inner wall of the pipe fittings with different diameters is not well polished, and there are often some fine places that are not polished In place, resulting in poor overall polishing effect.

In order to achieve the above object, the present invention provides a steel pipe internal throwing machine, comprising a support base, a feeding and discharging mechanism is provided on one side of the top of the supporting base, and a discharging and discharging mechanism is provided on the other side of the top of the supporting base. A rotating support mechanism is set between the feeding and discharging mechanism and the unloading and discharging mechanism. A clamping device is arranged on the rotating supporting mechanism. The clamping device clamps the pipe to be polished and drives the pipe to be polished to rotate. One side of the rotating support mechanism A dust removal mechanism is provided, and the other side of the rotating support mechanism is provided with a chip removal polishing mechanism. The chip removal polishing mechanism includes a chip removal polishing head and a feeding mechanism. The bottom moves along the length direction of the pipe to be polished, and performs chip removal and polishing on the inner wall of the rotating pipe to be polished.

In one embodiment of the present invention, the feeding and discharging mechanism includes two symmetrically arranged feeding support frames, both of which are horizontal first F-shaped structures, and the first F-shaped structure The two horizontal plates are arranged vertically, the long horizontal plates of the two horizontal plates are far away from the center line of the support base, and the upper parts of the horizontal plates of the two feeding support frames are respectively connected by the first cylindrical linear guide column. Two first cylindrical linear sliders are arranged on the first cylindrical linear guide post,

By adopting this technical scheme: by using the first cylindrical linear slider to slide on the first cylindrical linear guide column as a sliding guide mechanism, the adjustment of feeding can be adjusted smoothly, and it has the advantages of 1. High positioning accuracy; 2. Less wear and longer energy Time maintenance accuracy; 3. Use high-speed movement and greatly reduce the driving horsepower required by the machine; 4. Can bear up, down, left, and right loads at the same time; 5. Easy assembly and interchangeability; 6. Simple lubrication structure and other advantages;

The top of the two first cylindrical linear sliders close to the feeding support frame on either side is equipped with an L-shaped structure of the feeding side sliding channel; the horizontal plate of the loading side sliding channel is close to the center line end of the supporting base There is a feeding limit stop;

The blanking and discharging mechanism includes two blanking support frames arranged in parallel, the two blanking support frames are both horizontal second F-shaped structures, and the two horizontal plates of the second F-shaped structure are vertically arranged , The top surface of the two blanking support frames is provided with a blanking trough, and the blanking trough is a U-shaped structure.

In one embodiment of the present invention, the two above-mentioned feeding side chute are arranged symmetrically;

The inlet height of the chute on the loading side is higher than the outlet height of the chute on the loading side;

The inlet height of the lower chute is higher than the outlet height of the lower chute;

The outlet height of the feeding side chute is higher than the inlet height of the lower chute.

In one embodiment of the present invention, the clamping device includes a supporting end and a clamping end;

The rotating support mechanism includes vertical plates arranged in parallel, a nut is arranged on the upper part of one vertical plate, a screw rod is arranged inside the nut, and a feed baffle is arranged on the top surface of the other vertical plate;

A second cylindrical linear guide column arranged in parallel is arranged between the lower parts of the two vertical plates, and a second cylindrical linear slider is arranged on the two second cylindrical linear guide columns, and one end of the screw rod is connected with the second cylindrical linear slider , the other end of the screw is provided with a hand wheel;

The top of the second cylindrical linear slider and the lower left side of the feed baffle are provided with symmetrically arranged support wheel seats, and any one of the support wheel seats is provided with two support rotating wheels, wherein the feed baffle is far away from the second cylindrical straight line A rotary drive motor is arranged on the end face of one side of the slider, and a driving wheel is arranged on the output end of the rotary drive motor. The driving wheel drives a supporting rotary wheel close to the output end of the rotary drive motor to rotate through the conveyor belt, and the feed baffle is close to the second cylinder. A compression cylinder is arranged on the upper end surface of one side of the linear slide block, the piston rod of the compression cylinder is arranged downward, and a rotating pressure wheel is arranged on the piston rod of the compression cylinder.

In one embodiment of the present invention, the two supporting wheel seats correspond to the first supporting wheel seat and the second supporting wheel seat respectively, wherein the top of the second cylindrical linear slider is the first supporting wheel seat, and the first supporting wheel seat The two supporting rotating wheels on the seat are the supporting ends of the clamping device;

The lower part of the left side of the feed baffle is the second support wheel seat, and the rotating pressure wheel and the two support rotating wheels on the second support wheel seat are the clamping ends of the clamping device;

By adopting this technical solution: adjust the movement of the second cylindrical linear slider by rotating the hand wheel, thereby adjusting the distance between the supporting end and the clamping end, and adapting to different lengths of pipes to be polished;

There is a vertically arranged waist-shaped hole in the center of the end face of the feed baffle;

By adopting this technical scheme: the waist-shaped hole on the feed baffle is used for the chip-removing polishing head to pass in and out of the pipe to be polished;

The inner end surface of the supporting end of the clamping device and the inner end surface of the clamping end are provided with a feeding cylinder and a discharging cylinder in sequence from front to back, and the piston rod of the feeding cylinder and the piston rod of the discharging cylinder are arranged upwards. The piston rods of the cylinders are all provided with feeding cylinder push blocks, and the piston rods of the unloading cylinders are all provided with unloading cylinder push blocks;

A dust removal mechanism is provided on the outer end surface of the support end of the clamping device. The dust removal mechanism includes a chip suction port, which corresponds to the pipe hole of the pipe to be polished and is connected to the chip suction device;

By adopting this technical solution: the impurities remaining on the inner wall of the pipe can be effectively removed by the dust removal mechanism;

The top surface of the pushing block of the feeding cylinder and the top surface of the pushing block of the unloading cylinder are both slopes, wherein the inlet height of the pushing block of the feeding cylinder is higher than the outlet height of the pushing block of the feeding cylinder, and the inlet height of the pushing block of the unloading cylinder is higher The outlet height of the push block of the feeding cylinder is higher than the inlet height of the push block of the lower material cylinder;

The center of the rotating pressure roller is arranged correspondingly to the midpoint of the line connecting the centers of the two supporting rotating wheels on the second supporting wheel seat.

In one embodiment of the present invention, the feed mechanism includes a feed cylinder, the piston end of the feed cylinder is connected to the polishing head fixing seat through a floating joint, and the chip removal polishing head is installed in the polishing head fixing seat,

By adopting this technical solution: through the polishing head fixing seat, it is convenient and quick to replace the dandruff-removing polishing head;

The mounting bracket of the feed cylinder is installed on the second adjustment transition plate, and the second adjustment transition plate is also provided with a first ball-type linear slide rail mechanism, wherein the slider of the first ball-type linear slide rail mechanism and the polishing head fixing seat The bottom connection of the first ball-type linear slide rail mechanism is installed on the top surface of the second adjustment transition plate;

By adopting this technical solution: through the first ball-type linear slide rail mechanism, the polishing accuracy of the chip-removing polishing head is guaranteed and the working pressure of the feed cylinder is avoided due to excessive friction.

In one embodiment of the present invention, the bottom surface of the second adjustment transition plate is provided with a first adjustment transition plate, the first adjustment transition plate is a 7-shaped structure, and the vertical plate of the 7-shaped structure is far away from one end of the horizontal plate. A vertically arranged second ball-type linear slide rail mechanism is arranged on the end surface, and the second ball-type linear slide rail mechanism is connected to the support base through the linear slide rail fixing seat.

In one embodiment of the present invention, the slider of the second ball-type linear slide mechanism is connected to the vertical plate of the first adjustment transition plate, and the slide rail of the second ball-type linear slide mechanism is installed on the linear slide rail on the fixed seat.

In an embodiment of the present invention, an adjusting cylinder mounting seat is provided under the vertical plate of the first adjusting transition plate, and an adjusting cylinder is arranged on the adjusting cylinder mounting seat, and the piston end of the adjusting cylinder is connected to the first adjusting transition plate. Riser bottom connection;

By adopting this technical scheme: by setting the first adjustment transition plate and the second adjustment transition plate under the first ball-type linear slide rail mechanism, the height of the chip removal polishing head can be adjusted, and the pipe fittings to be polished with different pipe diameters can be realized. The applicability and precision consistency of chip removal and polishing.

The invention provides a polishing method for a steel pipe internal polishing machine, comprising the following steps:

1), preparation for feeding:

①Adjust the distance between two pieces of feeding side chute to adapt to different lengths of pipes to be polished;

②Adjust the movement of the second cylindrical linear slider by rotating the hand wheel, thereby adjusting the distance between the supporting end and the clamping end, and adapting to different lengths of pipes to be polished;

③Put the pipe fittings to be polished into the feeding side chute of the feeding and discharging mechanism, and the pipe fittings to be polished will roll to the feeding limit stop under the action of gravity, ready for feeding;

2), feeding:

When the pipe to be polished rolls to the feeding limit stop, the push block of the feeding cylinder lifts the pipe to be polished under the action of the feeding cylinder; the top of the push block of the feeding cylinder is a slope, when the pipe to be polished is lifted off the When the material is limited, the pipe to be polished will roll along the top of the inclined surface of the feeding cylinder push block to the support end and the two support rotating wheels at the clamping end under the action of gravity. V-shaped support structure;

3) Rotation of the pipe to be polished:

①The rotating pressure wheel will press the pipe to be polished downward under the thrust of the compression cylinder to complete the clamping of the clamping end;

②The rotary drive motor is energized and rotated, and the supporting rotary wheel under the rotary pressure wheel near the output end of the rotary drive motor is driven to rotate through the synchronous belt, thereby driving the pipe to be polished to rotate;

4) Adjustment of the anti-dandruff polishing head:

①By adjusting the cylinder to adjust the first adjustment transition plate, the height of the chip removal polishing head can be adjusted;

②Adjust the fixing seat of the polishing head through the feed cylinder to adjust the feeding direction of the chip removal polishing head;

5), polishing:

①When the rotary drive motor is energized and rotates to drive the pipe to be polished to rotate, the feed cylinder pushes the slider of the first ball-type linear slide mechanism to drive the chip removal polishing head to feed, and polish the inner wall of the pipe to be polished;

② After polishing, the waste chips in the polished pipe fittings are sucked out by the chip suction device through the chip suction port;

6), blanking:

①Under the action of the unloading cylinder, the push block lifts up the polished pipe for unloading;

②The top of the push block of the blanking cylinder is inclined. When the polished pipe is lifted off the supporting rotating wheel, the polished pipe will roll along the top of the slope of the push block of the blanking cylinder to the discharge mechanism under the action of gravity , the material is discharged from the discharge trough of the discharge and discharge mechanism.

As mentioned above, the present invention provides a steel pipe internal polishing machine, which has reasonable structure, convenient use, low economic cost, and wide application range. The dust removal mechanism can effectively remove impurities remaining on the inner wall of the pipe fittings; it is convenient and quick to replace the chip removal polishing head. Improve the work efficiency; through the supporting end and the clamping end, the pipe fittings can be effectively fixed and there will be no shaking phenomenon during the polishing process of the pipe fittings, which greatly improves the polishing effect. Excellent polishing accuracy and avoid increasing the working pressure of the feed cylinder due to excessive friction;

The invention provides a polishing method for a steel pipe internal polishing machine. The V-shaped support structure formed between two supporting rotating wheels can support steel pipes of different diameters, and the first adjustment transition plate provided under the ball-type linear slide rail mechanism And the second adjustment transition plate can adjust the height of the chip removal polishing head, which realizes the applicability to the pipe fittings to be polished of different pipe diameters and the accuracy consistency of chip removal polishing. The chip removal polishing head can polish the inner wall of steel pipes with different diameters High efficiency, long service life, effectively avoiding environmental pollution, popularization and application have good economic and social benefits.

Description of drawings

Fig. 1 is a front view of the installation structure of the present invention.

Fig. 2 is a top view of the installation structure of the present invention.

Fig. 3 is a left view of the installation structure of the present invention.

Fig. 4 is a three-dimensional view of the installation structure of the loading and discharging mechanism, the unloading and discharging mechanism and the support base of the present invention.

FIG. 5 is a top view of FIG. 4 .

FIG. 6 is a cross-sectional view along line A-A of FIG. 5 .

Fig. 7 is a three-dimensional view of the rotating support mechanism of the present invention.

Fig. 8 is a front view of Fig. 7 .

FIG. 9 is a top view of FIG. 7 .

Fig. 10 is a left side view of Fig. 7 .

Fig. 11 is a three-dimensional view of the chip removing and polishing mechanism of the present invention.

Fig. 12 is a front view of Fig. 11 .

In the figure: 1. Loading and discharging mechanism; 2. Rotary support mechanism; 3. Chip removal and polishing mechanism; 4. Loading and discharging mechanism; 5. Support base; 6. Chip suction port; Material channel; 102. Loading limit block; 103. The first cylindrical linear slider; 104. The first cylindrical linear guide column; 105. Feeding support frame; 201. Feeding cylinder push block; 202. Feeding cylinder ;203. Support rotating wheel; 204. Rotating pressure wheel; 205. Compression cylinder; 206. Rotary drive motor; Polishing head; 302. Fixing seat of polishing head; 303. First ball-type linear slide rail mechanism; 304. Floating joint; 305. Feed cylinder; 306. Linear slide rail fixing seat; 307. Second ball-type linear slide rail mechanism ; 308. the first adjustment transition plate; 309. the second adjustment transition plate; 310. adjustment cylinder; 401. blanking support frame; 402. blanking chute.

Detailed ways

The implementation of the present invention will be illustrated by specific specific examples below, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

See Figures 1 through 12. It should be noted that the structures, proportions, sizes, etc. shown in the drawings attached to this specification are only used to match the content disclosed in the specification, for those who are familiar with this technology to understand and read, and are not used to limit the implementation of the present invention. Limiting conditions, so there is no technical substantive meaning, any modification of structure, change of proportional relationship or adjustment of size, without affecting the effect and purpose of the present invention, should still fall within the scope of the present invention. The disclosed technical content must be within the scope covered. At the same time, terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description and are not used to limit this specification. The practicable scope of the invention and the change or adjustment of its relative relationship shall also be regarded as the practicable scope of the present invention without any substantial change in the technical content.

As shown in Figure 3, the present invention provides a steel pipe internal throwing machine, including a support base 5, the top side of the support base 5 is provided with a feeding and discharging mechanism 1, and the other side of the support base 5 top is provided with a lower Material discharge mechanism 4,

As shown in Figure 2, a rotating support mechanism 2 is provided between the feeding and discharging mechanism 1 and the discharging and discharging mechanism 4, and a clamping device is arranged on the rotating supporting mechanism 2, and the clamping device clamps the pipe to be polished and drives the pipe to be polished. The polished pipe is rotated, one side of the rotating support mechanism 2 is provided with a dust removal mechanism, and the other side of the rotating support mechanism 2 is provided with a chip removal polishing mechanism 3,

As shown in Figure 11, the chip removal polishing mechanism 3 includes a chip removal polishing head 301 and a feed mechanism, and the chip removal polishing head 301 is located in the pipe of the pipe to be polished and moves along the length direction of the pipe to be polished under the drive of the feed mechanism , to remove debris and polish the inner wall of the rotating pipe to be polished;

As shown in Figure 4, the described feeding and discharging mechanism 1 includes two symmetrically arranged feeding support frames 105, both of which are horizontal first F-shaped structures, the first F-shaped structure The two horizontal plates are all vertically arranged, the long horizontal plates in the two horizontal plates are all away from the center line of the support base 5, and the upper parts of the horizontal plates of the two feeding support frames 105 are respectively connected by the first cylindrical linear guide post 104, Any one of the first cylindrical linear guide posts 104 is provided with two first cylindrical linear sliders 103. By adopting this technical scheme: by using the first cylindrical linear sliders to slide on the first cylindrical linear guide posts as sliding The guide mechanism can be adjusted smoothly when feeding and adjusting, and has the characteristics of 1. High positioning accuracy; 2. Less wear can maintain the accuracy for a long time; 3. Use high-speed movement and greatly reduce the driving horsepower required by the machine; 4. Can withstand up and down at the same time Left and right load; 5. Easy assembly and interchangeability; 6. Simple lubrication structure and other advantages;

The tops of the two first cylindrical linear sliders 103 close to the feeding support frame 105 on either side are provided with an L-shaped feeding side blocking slideway 101;

As shown in FIG. 5 , the end of the horizontal plate of the sliding material channel 101 on the feeding side close to the center line of the supporting base 5 is provided with a feeding limit block 102 ;

As shown in Figure 6, the described blanking and discharging mechanism 4 includes two blanking support frames 401 arranged in parallel, and the two blanking support frames 401 are both horizontal second F-shaped structures, and the second F-shaped structure The two horizontal plates are all vertically arranged, and the top surfaces of the two blanking support frames 401 are provided with a blanking trough 402, and the blanking trough 402 is a U-shaped structure;

The two described feeding side chute 101 are arranged symmetrically;

The inlet height of the material-feeding side chute 101 is higher than the outlet height of the loading-side chute 101;

The inlet height of the lower chute 402 is higher than the outlet height of the lower chute 402;

The outlet height of the feeding side chute 101 is higher than the inlet height of the lower chute 402;

The clamping device includes a supporting end and a clamping end;

As shown in FIG. 7 , the rotating support mechanism 2 includes vertical plates arranged in parallel, a nut is arranged on the upper part of one vertical plate, a screw rod is arranged inside the nut, and a feed baffle 209 is provided on the top surface of the other vertical plate;

A second cylindrical linear guide column arranged in parallel is arranged between the lower parts of the two vertical plates, and a second cylindrical linear slider is arranged on the two second cylindrical linear guide columns, and one end of the screw rod is connected with the second cylindrical linear slider , the other end of the screw is provided with a hand wheel;

The top of the second cylindrical linear slide block and the left side lower part of the feed baffle 209 are provided with symmetrically arranged support wheel seats, and any one of the support wheel seats is provided with two support rotating wheels 203, wherein the feed baffle 209 is far away from the first A rotary drive motor 206 is arranged on the end face of one side of the two cylindrical linear sliders, and a driving wheel is arranged on the output end of the rotary drive motor 206, and the driving wheel drives a supporting rotary wheel 203 near the output end of the rotary drive motor to rotate through the conveyor belt, and the knife feed A compression cylinder 205 is arranged on the upper end surface of the baffle plate 209 close to the side of the second cylindrical linear slider, the piston rod of the compression cylinder 205 is arranged downward, and the piston rod of the compression cylinder 205 is provided with a rotary pressure roller 204;

As shown in Figure 8, the two supporting wheel bases correspond to the first supporting wheel base and the second supporting wheel base respectively, wherein the top of the second cylindrical linear slider is the first supporting wheel base, and the two supporting wheel bases on the first supporting wheel base A supporting rotating wheel 203 is the supporting end of the clamping device;

The lower left side of the knife feed stopper 209 is the second support wheel seat, and the two supporting rotating wheels 203 on the rotary pressure wheel 204 and the second support wheel seat are the clamping ends of the clamping device; by adopting this technical scheme: by Rotate the hand wheel to adjust the movement of the second cylindrical linear slider, thereby adjusting the distance between the supporting end and the clamping end, and adapting to different lengths of pipes to be polished;

As shown in Figure 10, a vertically arranged waist-shaped hole is arranged in the center of the end face of the knife-feeding baffle 209; by adopting this technical scheme: the waist-shaped hole on the knife-feeding baffle is used for the chip removal polishing head to pass in and out of the pipe to be polished;

The inner end surface of the supporting end of the clamping device and the inner end surface of the clamping end are sequentially provided with a feeding cylinder 202 and a lowering cylinder 208 from front to back, and the piston rod of the feeding cylinder 202 and the piston rod of the lowering cylinder 208 are arranged upwards. , wherein the piston rod of the feeding cylinder 202 is provided with a feeding cylinder push block 201, and the piston rod of the blanking cylinder 208 is provided with a blanking cylinder push block 207;

As shown in Figure 1, a dust removal mechanism is provided on the outer surface of the support end of the clamping device, and the dust removal mechanism includes a chip suction port 6, which corresponds to the pipe hole of the pipe to be polished and is connected with the chip suction device; by using this A technical solution: through the dust removal mechanism, the impurities remaining on the inner wall of the pipe can be effectively removed;

As shown in Figure 9, the top surface of the feeding cylinder push block 201 and the top surface of the unloading cylinder push block 207 are all inclined surfaces, wherein the inlet height of the feed cylinder push block 201 is higher than the outlet height of the feed cylinder push block 201 , the inlet height of the blanking cylinder pushing block 207 is higher than the outlet height of the blanking cylinder pushing block 207, and the outlet height of the feeding cylinder pushing block 201 is higher than the inlet height of the blanking cylinder pushing block 207;

As shown in Figure 10, the center of the circle of the rotating pressure wheel 204 is arranged correspondingly to the midpoint of the line connecting the centers of the circles of the two supporting rotating wheels 203 on the second supporting wheel seat;

As shown in Figure 12, described feeding mechanism comprises feeding cylinder 305, and the piston end of feeding cylinder 305 is connected with polishing head fixing seat 302 by floating joint 304, and deswarfing polishing head 301 is installed in polishing head fixing seat 302 , by adopting this technical scheme: through the polishing head fixing seat, it is convenient and quick to replace the dandruff removal polishing head;

The mounting bracket of the feed cylinder 305 is installed on the second adjustment transition plate 309, and the second adjustment transition plate 309 is also provided with a first ball-type linear slide rail mechanism 303, wherein the slider of the first ball-type linear slide rail mechanism 303 Connected with the bottom of the polishing head holder 302, the slide rail of the first ball-type linear slide mechanism 303 is installed on the top surface of the second adjustment transition plate 309; by adopting this technical scheme: through the first ball-type linear slide mechanism, Ensure the polishing accuracy of the chip removal polishing head and avoid increasing the working pressure of the feed cylinder due to excessive friction;

The bottom surface of the second adjustment transition plate 309 is provided with a first adjustment transition plate 308, the first adjustment transition plate 308 is a 7-shaped structure, and the vertical plate of the 7-shaped structure is provided with a vertical The second ball-type linear slide rail mechanism 307 is arranged, and the second ball-type linear slide rail mechanism 307 is connected to the support base 5 through the linear slide rail fixing seat 306;

The slider of the second ball-type linear slide mechanism 307 is connected to the vertical plate of the first adjustment transition plate 308, and the slide rail of the second ball-type linear slide mechanism 307 is installed on the linear slide rail fixing seat 306;

The bottom of the vertical plate of the first adjustment transition plate 308 is provided with an adjustment cylinder mount, and the adjustment cylinder mount is provided with an adjustment cylinder 310, and the piston end of the adjustment cylinder 310 is connected with the bottom surface of the vertical plate of the first adjustment transition plate 308; By adopting this technical scheme: by setting the first adjustment transition plate and the second adjustment transition plate under the first ball-type linear slide rail mechanism, the height of the chip removal polishing head can be adjusted, and the pipe fittings to be polished with different pipe diameters can be realized. The applicability and precision consistency of chip removal and polishing.

The invention provides a polishing method for a steel pipe internal polishing machine, comprising the following steps:

1), preparation for feeding:

①Adjust the distance between the two feeding side slide rails 101 to adapt to different lengths of pipes to be polished;

②Adjust the movement of the second cylindrical linear slider by rotating the hand wheel, thereby adjusting the distance between the supporting end and the clamping end, and adapting to different lengths of pipes to be polished;

③Put the pipe fittings to be polished into the feeding side chute 101 of the feeding and discharging mechanism 1, and the pipe fittings to be polished will roll to the feeding limit block 102 under the action of gravity to prepare for feeding;

2), feeding:

When the pipe fittings to be polished roll to the feeding limit block 102, the feeding cylinder push block 201 lifts the pipe fittings to be polished under the action of the feeding cylinder 202; the top of the feeding cylinder push block 201 is a slope, when the pipe fittings to be polished When jacking up and breaking away from the feeding limit block 102, the pipe to be polished will roll along the slope top of the feeding cylinder push block 201 to between the two supporting rotating wheels 203 at the supporting end and the clamping end under the action of gravity. A V-shaped support structure is formed between the two supporting rotating wheels;

3) Rotation of the pipe to be polished:

①The rotating pressure wheel 204 will press down the pipe to be polished under the thrust of the pressing cylinder 205;

② The rotary drive motor 206 is energized and rotated, and the supporting rotary wheel 203 below the rotary pinch wheel 204, which is close to the output end of the rotary drive motor, is driven to rotate through the synchronous belt, thereby driving the pipe to be polished to rotate;

4) Adjustment of the anti-dandruff polishing head:

①By adjusting the cylinder 310 to adjust the first adjustment transition plate 308, the height of the chip removal polishing head 301 can be adjusted;

②By adjusting the polishing head fixing seat 302 through the feeding cylinder 305, the feeding direction of the chip removal polishing head 301 can be adjusted;

5), polishing:

①When the rotary drive motor 206 is energized and rotates to drive the pipe to be polished to rotate, the feed cylinder 305 pushes the slider of the first ball-type linear slide rail mechanism 303 to drive the chip removal polishing head 301 to feed, and polish the inner wall of the pipe to be polished;

② After polishing, the waste chips in the polished pipe fittings are sucked out by the chip suction device through the chip suction port 6;

6), blanking:

①Under the action of the unloading cylinder 208, the push block 207 of the unloading cylinder lifts up the polished pipe for unloading;

②The top of the push block 207 of the blanking cylinder is inclined. When the polished pipe is lifted off the supporting rotating wheel 203, the polished pipe will roll to the discharge row along the top of the slope of the push block 207 of the blanking cylinder under the action of gravity. In the material mechanism 4 , the material is discharged by the discharge trough 402 of the discharge mechanism 4 .

During specific implementation, the rotation driving motor 206 adopts any one of a servo motor or a stepping motor.

To sum up, the present invention provides a steel pipe internal polishing machine, which has reasonable structure, convenient use, low economic cost, and wide application range. The dust removal mechanism can effectively remove impurities remaining on the inner wall of the pipe fittings; it is convenient and quick to replace the chip removal polishing head , improve work efficiency; through the supporting end and the clamping end, the pipe fittings can be effectively fixed and there will be no vibration during the polishing process of the pipe fittings, which greatly improves the polishing effect. The polishing accuracy of the head and avoid increasing the working pressure of the feed cylinder due to excessive friction;

The invention provides a polishing method for a steel pipe internal polishing machine. The V-shaped support structure formed between two supporting rotating wheels can support steel pipes of different diameters, and the first adjustment transition plate provided under the ball-type linear slide rail mechanism And the second adjustment transition plate can adjust the height of the chip removal polishing head, which realizes the applicability to the pipe fittings to be polished of different pipe diameters and the accuracy consistency of chip removal polishing. The chip removal polishing head can polish the inner wall of steel pipes with different diameters High efficiency, long service life, effectively avoiding environmental pollution. Therefore, the present invention effectively overcomes various shortcomings in the prior art and has high industrial application value.

The above-mentioned embodiments only illustrate the principles and effects of the present invention, but are not intended to limit the present invention. Anyone skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those skilled in the art without departing from the spirit and technical ideas disclosed in the present invention should still be covered by the claims of the present invention.

Claims (9)

1. A steel pipe internal throwing machine, comprising a support base (5), is characterized in that: one side of the top of the support base (5) is provided with a feeding and discharging mechanism (1), and the other side of the support base (5) top is A blanking and discharging mechanism (4) is provided on one side, and a rotating support mechanism (2) is provided between the loading and discharging mechanism (1) and the blanking and discharging mechanism (4); The rotating support mechanism (2) is provided with a clamping device. The clamping device includes a supporting end and a clamping end. The clamping device clamps the pipe to be polished and drives the pipe to be polished to rotate. The rotating support (2) includes parallel Arranged vertical boards, a nut is provided on the upper part of one vertical board, a screw rod is arranged inside the nut, and a feed baffle (209) is provided on the top surface of the other vertical board; A second cylindrical linear guide column arranged in parallel is arranged between the lower parts of the two vertical plates, and a second cylindrical linear slider is arranged on the two second cylindrical linear guide columns, and one end of the screw rod is connected with the second cylindrical linear slider , the other end of the screw is provided with a hand wheel; The top of the second cylindrical linear slider and the lower left side of the feed stopper (209) are provided with symmetrically arranged support wheel seats, and any support wheel seat is provided with two support rotating wheels (203), wherein the feed stopper A rotary drive motor (206) is arranged on the end surface of the plate (209) away from the side of the second cylindrical linear slider, and a driving wheel is arranged on the output end of the rotary drive motor (206). A support rotary wheel (203) at the end rotates, and a compression cylinder (205) is arranged on the end surface of the feed baffle (209) near the side of the second cylindrical linear slider, and the piston rod of the compression cylinder (205) is arranged downwards. , the piston rod of the compression cylinder (205) is provided with a rotating pressure roller (204); The inboard end face of the supporting end of the clamping device and the inboard end face of the clamping end are all provided with a feeding cylinder (202), a feeding cylinder (208) from front to back, a piston rod of the feeding cylinder (202) and a feeding cylinder ( The piston rods of 208) are all arranged upwards, wherein the piston rods of the feeding cylinders (202) are all provided with feeding cylinder push blocks (201), and the piston rods of the unloading cylinders (208) are all provided with unloading cylinder push blocks (207); The top surface of the feeding cylinder push block (201) and the top surface of the unloading cylinder push block (207) are sloped, wherein the inlet height of the feed cylinder push block (201) is higher than that of the feed cylinder push block (201) Outlet height, the inlet height of the blanking cylinder pushing block (207) is higher than the outlet height of the blanking cylinder pushing block (207), and the outlet height of the feeding cylinder pushing block (201) is higher than that of the blanking cylinder pushing block (207) Inlet height; One side of the rotary support mechanism (2) is provided with a dust removal mechanism, and the other side of the rotary support mechanism (2) is provided with a chip removal polishing mechanism (3), and the chip removal polishing mechanism (3) includes a chip removal polishing head (301), In the feed mechanism, the chip removal polishing head (301) is located in the tube of the pipe to be polished and moved along the length direction of the tube to be polished driven by the feed mechanism to perform chip removal and polishing on the inner wall of the rotating tube to be polished. 2. A steel pipe internal throwing machine according to claim 1, characterized in that: the feeding and discharging mechanism (1) includes two symmetrically arranged feeding support frames (105), and the two feeding support frames The frame (105) is the first F-shaped structure placed horizontally, the two horizontal plates of the first F-shaped structure are arranged vertically, and the long horizontal plates in the two horizontal plates are all away from the center line of the supporting base (5). The tops of the horizontal plates of the two feeding support frames (105) are respectively connected by the first cylindrical linear guide pillars (104), and any one of the first cylindrical linear guide pillars (104) is provided with two first cylindrical linear sliders (103), the tops of the two first cylindrical linear sliders (103) near any side feeding support frame (105) are all provided with the feeding side chute (101) of L-shaped structure; The end of the horizontal plate of the slideway (101) close to the centerline of the support base (5) is provided with a feeding limit stopper (102); The blanking and discharging mechanism (4) comprises two blanking support frames (401) arranged in parallel, and the two blanking support frames (401) are both horizontal second F-shaped structures, and the second F-shaped structure The two horizontal plates are all vertically arranged, and the top surfaces of the two blanking support frames (401) are provided with a blanking trough (402), and the blanking trough (402) is a U-shaped structure. 3. A steel pipe internal throwing machine according to claim 2, characterized in that: the two said feeding side chute (101) are arranged symmetrically; The inlet height of the feeding side chute (101) is higher than the outlet height of the feeding side chute (101); The inlet height of the lower chute (402) is higher than the outlet height of the lower chute (402); The outlet height of the feeding side chute (101) is higher than the inlet height of the lower chute (402). 4. A steel pipe internal throwing machine according to claim 1, characterized in that: the two supporting wheel seats correspond to the first supporting wheel seat and the second supporting wheel seat respectively, wherein the top of the second cylindrical linear slider It is the first supporting wheel seat, and the two supporting rotating wheels (203) on the first supporting wheel seat are the supporting ends of the clamping device; The lower left side of the feed baffle plate (209) is the second support wheel seat, and the two support rotating wheels (203) on the rotary pressure wheel (204) and the second support wheel seat are the clamping ends of the clamping device; A vertically arranged waist-shaped hole is arranged at the center of the end face of the feed baffle (209); A dust removal mechanism is provided on the outer end surface of the support end of the clamping device, and the dust removal mechanism includes a chip suction port (6), which corresponds to the pipe hole of the pipe to be polished and is connected to the chip suction device; The center of circle of the rotating pinch wheel (204) is arranged correspondingly to the midpoint of the line connecting the centers of the circles of the two supporting rotating wheels (203) on the second supporting wheel seat. 5. A steel pipe internal throwing machine according to claim 1, characterized in that: the feed mechanism includes a feed cylinder (305), and the piston end of the feed cylinder (305) connects with the floating joint (304) The polishing head holder (302) is connected, and the dandruff removal polishing head (301) is installed in the polishing head holder (302), The mounting bracket of the feed cylinder (305) is installed on the second adjustment transition plate (309), and the second adjustment transition plate (309) is also provided with a first ball type linear slide rail mechanism (303), wherein the first ball type The slide block of the linear slide mechanism (303) is connected with the bottom of the polishing head fixing seat (302), and the slide rail of the first ball type linear slide mechanism (303) is installed on the top surface of the second adjustment transition plate (309). 6. A steel pipe internal throwing machine according to claim 5, characterized in that: the bottom surface of the second adjustment transition plate (309) is provided with a first adjustment transition plate (308), the first adjustment transition plate ( 308) is a 7-shaped structure, the vertical plate of the 7-shaped structure is provided with a vertically arranged second ball-type linear slide mechanism (307) on the end face away from the end of the horizontal plate, and the second ball-type linear slide mechanism (307) ) is connected with the support base (5) through the linear slide rail fixing seat (306). 7. A steel pipe internal throwing machine according to claim 6, characterized in that: the slider of the second ball type linear slide rail mechanism (307) is connected to the vertical plate of the first adjustment transition plate (308) , the slide rail of the second ball type linear slide rail mechanism (307) is installed on the linear slide rail fixing seat (306). 8. A steel pipe internal throwing machine according to claim 7, characterized in that: an adjusting cylinder mounting seat is provided under the vertical plate of the first adjusting transition plate (308), and an adjusting cylinder mounting seat is provided with an adjusting The cylinder (310), the piston end of the adjustment cylinder (310) is connected with the vertical plate bottom surface of the first adjustment transition plate (308). 9. A polishing method for a steel pipe internal polishing machine, characterized in that: comprising the following steps: 1), preparation for feeding: ①Adjust the distance between the two feeding side slide rails (101) to adapt to different lengths of pipe fittings to be polished; ②Adjust the movement of the second cylindrical linear slider by rotating the hand wheel, thereby adjusting the distance between the supporting end and the clamping end, and adapting to different lengths of pipes to be polished; ③Put the pipe fittings to be polished into the feeding side chute (101) of the feeding and discharging mechanism (1), and the pipe fittings to be polished will roll to the feeding limit block (102) under the action of gravity, ready to Feeding; 2), feeding: When the pipe fitting to be polished rolls to the feeding limit block (102), the feeding cylinder push block (201) lifts the pipe fitting to be polished under the action of the feeding cylinder (202); the top of the feeding cylinder push block (201) When the pipe to be polished is lifted away from the feeding limit block (102), the pipe to be polished will roll along the top of the slope of the feeding cylinder push block (201) to the support end and clamp under the action of gravity. Between the two supporting rotating wheels (203) at the holding end, a V-shaped supporting structure is formed between the two supporting rotating wheels; 3) Rotation of the pipe to be polished: ①The rotating pressure wheel (204) will press down the pipe fitting to be polished under the thrust of the pressing cylinder (205); ②The rotary drive motor (206) is energized and rotated, and the supporting rotary wheel (203) below the rotary pinch wheel (204) near the output end of the rotary drive motor is driven to rotate through the synchronous belt, thereby driving the pipe to be polished to rotate; 4) Adjustment of the anti-dandruff polishing head: ①By adjusting the cylinder (310) to adjust the first adjustment transition plate (308), the height of the chip removal polishing head (301) can be adjusted; ②By adjusting the polishing head fixing seat (302) through the feeding cylinder (305), the feeding direction of the chip removal polishing head (301) can be adjusted; 5), polishing: ①When the rotary drive motor (206) is energized and rotates to drive the pipe to be polished to rotate, the feed cylinder (305) pushes the slider of the first ball-type linear slide rail mechanism (303) to drive the chip removal polishing head (301) to feed, and treats Polishing the inner wall of the pipe fittings for polishing; ② After polishing, the waste chips in the polished pipe fittings are sucked out by the chip suction device through the chip suction port (6); 6), blanking: ①Under the action of the blanking cylinder (208), the push block (207) lifts up the polished pipe for blanking; ②The top of the blanking cylinder push block (207) is inclined. When the polished pipe is lifted off the supporting rotating wheel (203), the polished pipe will follow the slope of the blanking cylinder push block (207) under the action of gravity The top rolls into the blanking and discharging mechanism (4), and is discharged by the blanking chute (402) of the blanking and discharging mechanism (4).

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