CN113245976B

CN113245976B - Duplex position triangular tube burnishing machine

Info

Publication number: CN113245976B
Application number: CN202110657462.0A
Authority: CN
Inventors: 林啊振
Original assignee: Foshan Ruidopu Machining Co ltd
Current assignee: Foshan Ruidopu Machining Co ltd
Priority date: 2021-06-12
Filing date: 2021-06-12
Publication date: 2022-05-17
Anticipated expiration: 2041-06-12
Also published as: CN113245976A

Abstract

The invention discloses a double-station triangular pipe polishing machine which structurally comprises a motor, limiting triangular prisms, diamond-shaped dust covers, an adsorption fixing disc, a fixing frame, a driving polishing device, a driven polishing device, a machine body, a V-shaped frame and a telescopic rod, wherein the adsorption fixing disc is arranged on the top surface of the machine body, and the adsorption fixing disc is provided with two in a mirror image mode.

Description

Double-station triangular tube polishing machine

Technical Field

The invention relates to a polishing machine, in particular to a double-station triangular tube polishing machine.

Background

The special-shaped seamless steel pipe is a general name of seamless steel pipes with other cross-sectional shapes except for a round pipe, and is divided into the following shapes: outer hexagonal inner circular steel tube, outer hexagonal inner steel tube, inside and outside hexagonal steel tube, oval steel pipe, triangular tube etc. abnormal shape steel pipe need carry out burnishing and polishing in the course of working, and the triangular tube has triangular steadiness, all has extensive use in each field such as building, and to the triangular tube surface polishing, current abrasive band polishing machine is owing to the technique perfect inadequately, has following defect and treats with the improvement:

(1) the regular triangular tube has three surfaces, so that the abrasive belt polishing machine needs to polish and polish the three surfaces of the triangular tube for three times respectively, and the polishing efficiency is low and the polishing time is long;

(2) the two ends of the abrasive belt of the prior abrasive belt polishing machine are jointed together to form a ring, and the polishing of the abrasive belt is easy to damage, so that the ring-shaped abrasive belt is tightly arranged on the polishing machine, and the abrasive belt is inconvenient to replace.

Disclosure of Invention

Aiming at the problems, the invention provides a double-station triangular tube polishing machine, which solves the problems that the existing polishing machine is not perfect in technology, and three surfaces of a triangular tube need to be respectively polished for three times, so that the polishing efficiency is low, the polishing time is long, and an abrasive belt is inconvenient to replace.

In order to achieve the purpose, the invention is realized by the following technical scheme: a double-station triangular tube polishing machine structurally comprises a motor, two limiting triangular prisms, a diamond-shaped dust cover, an adsorption fixing disc, a fixing frame, a driving polishing device, a driven polishing device, a machine body, a V-shaped frame and a telescopic rod, wherein the adsorption fixing disc is arranged on the top surface of the machine body, the adsorption fixing disc is provided with two mirrors, the bottom surface of the adsorption fixing disc is perpendicularly connected with the telescopic rod, the telescopic rod is arranged inside the machine body, the two adsorption fixing discs are provided with the driving polishing device, the fixing frame is arranged at the two ends of the driving polishing device, the two ends of the driving polishing device are matched with the driven polishing device, the two driven polishing devices towards one side of the limiting triangular prisms are connected through the V-shaped frame, one ends, far away from the V-shaped frame, of the driven polishing devices are connected with the fixing frame, the two limiting triangular prisms are matched with the diamond-shaped dust cover, the rhombic dust cover is in contact with the top surface of the machine body, and the active polishing device is in transmission connection with the motor;

the driving polishing device comprises a driving bevel gear, an abrasive belt, a driving roller, a driven roller and a transmission belt, wherein the transmission belt is in transmission fit with the driving roller and the driven roller, the driving bevel gear is fixed at both ends of the driving roller, the abrasive belt is installed on the transmission belt, and the driving roller is connected with an output shaft of a motor.

And as optimization, a polishing channel is formed between the two driven polishing devices and the driving polishing device facing one side of the limiting triangular prism, and the polishing channel is used for accommodating the triangular pipe.

As optimization, the mount includes isosceles frame body, mounting hole, U-shaped mouth, buckling plate, prevents off tracking stopper, the mounting hole has been seted up to isosceles frame body towards the one side of initiative burnishing device, the mounting hole is the equidistance formula and is equipped with eight and more than side by side, the U-shaped mouth has all been seted up to two wainscots of isosceles frame body towards driven burnishing device, the lug cooperation of U-shaped mouth and buckling plate, buckling plate and isosceles frame body lock mutually, buckling plate is fixed with the off tracking stopper towards the one side in abrasive band, prevent off tracking stopper and the alternate setting of U-shaped mouth.

As an optimization, the driving roller and the driven roller penetrate through the mounting hole, the driving roller penetrates through the mounting hole to be in transition fit with the driving bevel gear, the isosceles frame body is vertically connected with the machine body, and the driven shaft of the driven polishing device penetrates through the U-shaped opening.

Preferably, the two ends of the abrasive belt are respectively provided with an aluminum jacket clamp, each aluminum jacket clamp comprises a jacket clamp body, a sharp tooth, a first channel and a clamping groove, the jacket clamp body is internally provided with the first channel and the clamping groove, the inner top surface and the inner bottom surface of the clamping groove are respectively provided with the sharp tooth, the sharp tooth and the jacket clamp body are arranged in an integrated structure, the end of the abrasive belt penetrates through the clamping groove, and the sharp tooth is pricked into the abrasive belt to clamp the abrasive belt by the aluminum jacket clamp.

As optimization, the driving belt is provided with a convex groove and a second channel, and the second channel is provided with two channels which are distributed on two sides of the convex groove.

Preferably, the aluminum sleeve clamp and the transmission belt are fixed through a fixer, the fixer is composed of a U-shaped rod, thread grooves and screws, the thread grooves are formed in the tail ends of two limiting supporting legs of the U-shaped rod, one limiting supporting leg of the U-shaped rod penetrates through the first channel, the other limiting supporting leg of the U-shaped rod penetrates through the second channel, and the thread grooves are in threaded fit with the screws.

Preferably, the nut of the screw is circular, the diameter of the circle is larger than the caliber of the second channel, the calibers of the second channel and the first channel are equal, and the caliber of the second channel is slightly larger than the caliber of the limiting support leg

According to the technical scheme, the double-station triangular tube polishing machine has the following beneficial effects:

(1) according to the invention, the driving polishing device and the driven polishing device are arranged, so that each outer surface of the two triangular pipes can be polished at the same time, and the polishing efficiency is high;

(2) by arranging the fixing frame and the V-shaped frame, the invention not only can support the driving polishing device and the driven polishing device, but also can prevent the abrasive belt from deviating;

(3) according to the invention, the diamond-shaped dust cover and the limiting triangular prism are arranged, the balls of the limiting triangular prism are beneficial to smooth installation of the diamond-shaped dust cover, the driving polishing device and the driven polishing device can be completely covered by the diamond-shaped dust cover, polishing scraps generated by polishing can be blocked, and the polishing scraps are prevented from splashing;

(4) the invention is provided with the telescopic rod and the adsorption fixed disk, the telescopic rod can drive the adsorption fixed disk to lift, the adsorption fixed disk can adsorb and fix the triangular pipe, the triangular pipe can move, the abrasive belt can be static, the triangular pipe can move downwards, the abrasive belt can drive upwards to perform primary polishing, when the triangular pipe is taken out, the triangular pipe can move, the abrasive belt can be static, the triangular pipe can move upwards, the abrasive belt drives downwards, and three times of polishing are performed, so that the polishing is more comprehensive;

(5) according to the invention, through arranging the aluminum sleeve clamp and the fixer, two tail ends of the abrasive belt are disconnected and clamped by the aluminum sleeve clamp, when the abrasive belt is damaged and needs to be replaced, the screws are unscrewed from the thread grooves by screwing the screws, the U-shaped rod is pulled out from the first channel and the second channel, the two tail ends of the abrasive belt are pulled out from the convex grooves, a new abrasive belt is inserted into the convex grooves through the sleeve clamp body, then the U-shaped rod passes through the first channel and the second channel and is screwed into the thread grooves through the screws, so that the abrasive belt and the transmission belt are limited and fixed, and the abrasive belt can be replaced quickly.

Drawings

FIG. 1 is a schematic top view of a double-station triangular tube polishing machine according to the present invention.

Fig. 2 is a schematic structural view of the machine body of the present invention, an adsorption fixed disk and a limiting triangular prism.

Fig. 3 is a schematic perspective view of an active polishing apparatus according to the present invention.

Fig. 4 is a schematic perspective view of the fastening frame of the present invention.

Fig. 5 shows a cross-sectional view of the belt of the invention in cooperation with a drive belt.

Fig. 6 is a cross-sectional view of the fastener of the present invention.

In the figure: the device comprises a motor-1, a limiting triangular prism-2, a diamond dust cover-3, an adsorption fixed disc-4, a fixed frame-5, a driving polishing device-6, a driven polishing device-7, a machine body-8, a V-shaped frame-9, a telescopic rod-10, a driving bevel gear-61, an abrasive belt-62, a driving roller-63, a driven roller-64, a transmission belt-65, an isosceles frame body-51, a mounting hole-52, a U-shaped opening-53, a buckling plate-54, an anti-deviation limiting block-55, an aluminum sleeve clamp-x, a sleeve clamp body-x 1, a sharp tooth-x 2, a first channel-x 3, a clamp groove-x 4, a convex groove-y 1, a second channel-y 2, a U-shaped rod-z 1, a thread groove-z 2 and a screw-z 3.

Detailed Description

In order to make the technical means, creation features, achievement purposes and effects of the invention easy to understand, fig. 1 to fig. 6 schematically show the structure of a double-station triangular tube polishing machine according to an embodiment of the invention, and the invention is further described below with reference to specific embodiments.

In the description of the present invention, it is to be understood that the terms "center", "side", "length", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "side", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Example 1

As shown in fig. 1-2, the invention provides a double-station triangular tube polishing machine, which structurally comprises a motor 1, a limiting triangular prism 2, a diamond-shaped dust cover 3, an adsorption fixed disk 4, a fixed frame 5, a driving polishing device 6, a driven polishing device 7, a machine body 8, a V-shaped frame 9 and a telescopic rod 10, wherein the top surface of the machine body 8 is provided with the adsorption fixed disk 4, the adsorption fixed disk 4 is provided with two adsorption fixed disks 4 in a mirror image manner, the bottom surface of the adsorption fixed disk 4 is vertically connected with the telescopic rod 10, the telescopic rod 10 is arranged in the machine body 8, the driving polishing device 6 is arranged between the two adsorption fixed disks 4, the fixed frame 5 is arranged at both ends of the driving polishing device 6, the driven polishing device 7 is matched at both sides of both ends of the driving polishing device 6, the two driven polishing devices 7 facing one side of the limiting triangular prism 2 are connected through the V-shaped frame 9, driven burnishing device 7 keeps away from the one end of V type frame 9 and connects in mount 5, spacing triangular prism 2 is equipped with two, two spacing triangular prism 2 can cooperate with rhombus dust cover 3, rhombus dust cover 3 contacts with organism 8's top surface, initiative burnishing device 6 is connected with the transmission of motor 1, two towards spacing triangular prism 2 one side form the polishing way between driven burnishing device 7 and initiative burnishing device 6, and this polishing way is used for holding the triangular tube.

The both sides face equipartition of above-mentioned spacing triangular prism 2 has the ball, and the ball does benefit to smooth and easy installation of rhombus dust cover 3 with the contact of rhombus dust cover 3, and spacing triangular prism 2 can play spacing, the effect of location to two angles of rhombus dust cover 3 simultaneously, does benefit to putting of rhombus dust cover 3 for initiative burnishing device 6, driven burnishing device 7 can be located rhombus dust cover 3.

As shown in fig. 3, the active polishing device 6 includes a driving bevel gear 61, a sanding belt 62, a driving roller 63, a driven roller 64, and a transmission belt 65, the transmission belt 65 is in transmission fit with the driving roller 63 and the driven roller 64, the driving bevel gear 61 is fixed at both ends of the driving roller 63, the sanding belt 62 is installed on the transmission belt 65, and the driving roller 63 is connected with an output shaft of the motor 1.

The arrangement of the driven roller 64 can further improve the contact surface of the triangular tube of the abrasive belt 62, and is more beneficial to polishing the triangular tube by the abrasive belt 62.

As shown in fig. 4, the fixing frame 5 includes an isosceles frame body 51, mounting holes 52, U-shaped openings 53, fastening plates 54, and anti-deviation limiting blocks 55, the mounting holes 52 are formed in one surface of the isosceles frame body 51 facing the driving polishing device 6, the mounting holes 52 are arranged in parallel in an equidistant manner, the U-shaped openings 53 are formed in two waist surfaces of the isosceles frame body 51 facing the driven polishing device 7, the U-shaped openings 53 are matched with the protruding blocks of the fastening plates 54, the fastening plates 54 are fastened with the isosceles frame body 51, the anti-deviation limiting blocks 55 are fixed to one surface of the fastening plates 54 facing the abrasive belt 62, and the anti-deviation limiting blocks 55 and the U-shaped openings 53 are alternately arranged.

Above-mentioned isosceles frame body 51's setting can not only play the effect of supporting to initiative burnishing device 6, driven burnishing device 7, can also keep apart initiative bevel gear 61, driven bevel gear, prevents that initiative bevel gear 61, driven bevel gear from being infected with the polishing bits and influencing the transmission precision, avoids the transmission to take place to block.

The arrangement of the deviation-preventing limiting block 55 can limit the abrasive belt 62 and the transmission belt 65 on the basis of not interfering the transmission of the abrasive belt 62 and the transmission belt 65, so as to prevent the abrasive belt 62 and the transmission belt 65 from deviating and separating.

The driving roller 63 and the driven roller 64 penetrate through the mounting hole 52, the driving roller 63 penetrates through the mounting hole 52 and is in transition fit with the driving bevel gear 61, the isosceles frame body 51 is vertically connected with the machine body 8, and the driven shaft of the driven polishing device 7 penetrates through the U-shaped opening 53.

The matching of the buckling plate 54 and the U-shaped opening 53 facilitates the mounting, dismounting and maintenance of the driven polishing device 7, and also facilitates the transmission polishing of the driven polishing device 7.

Based on the above embodiment, the specific working principle is as follows:

before the triangular tube is polished, the diamond dust cover 3 passes through from top to bottom under the guide limit of the two limit triangular prisms 2, so that the driving polishing device 6 and the driven polishing device 7 are positioned in the diamond dust cover 3, scraps generated by polishing can be blocked, the scraps are prevented from splashing, the adsorption fixed disk 4 is driven to rise to the maximum height by controlling the telescopic rod 10, the triangular tube is placed on the adsorption fixed disk 4, the bottom surface of the triangular tube is adsorbed and fixed by the adsorption fixed disk 4, the adsorption fixed disk 4 is driven to fall by controlling the telescopic rod 10, the triangular tube is driven to fall, the process can use the triangular tube as a moving part, the abrasive belt 62 as a static part, the triangular tube can also move downwards, the abrasive belt 62 is driven upwards, the primary grinding and polishing of the triangular tube are realized, and the maximum limit of the adsorption fixed disk 4 which is driven by the telescopic rod 10 to rise and fall is in a polishing path, the triangular pipe is lifted to the maximum height so as to be convenient for matching with the polishing channel, the triangular pipe can enter the polishing channel for polishing, the top and the bottom of the abrasive belt 62 are cambered surfaces which cannot be contacted with the outer surface of the triangular pipe, so that the triangular pipe is lifted or lowered to the maximum and falls into the polishing channel, the whole surface of the triangular pipe is polished, the driving roller 63 rotates through the movement of the driving motor 1, the driving bevel gear 61 is meshed with the driven bevel gear, the movement of the driving polishing device 6 can drive the movement of the driven polishing device 7, the triangular pipe is used as static, the abrasive belt 62 is used as dynamic, the secondary polishing is simultaneously carried out on each outer surface of the two triangular pipes, the triangular pipe can be used as dynamic, the abrasive belt 62 is used as static, the triangular pipe can be used as dynamic, the abrasive belt 62 is used as dynamic for tertiary polishing, the polishing efficiency is high, and the polishing effect is good.

Example 2

As shown in fig. 1-2, the invention provides a double-station triangular tube polishing machine, which structurally comprises a motor 1, a limiting triangular prism 2, a rhombic dust cover 3, adsorption fixed discs 4, fixed frames 5, a driving polishing device 6, driven polishing devices 7, a machine body 8, a V-shaped frame 9 and a telescopic rod 10, wherein the top surface of the machine body 8 is provided with the adsorption fixed discs 4, the adsorption fixed discs 4 are arranged in two mirror images, the bottom surface of each adsorption fixed disc 4 is vertically connected with the telescopic rod 10, the telescopic rod 10 is arranged in the machine body 8, the driving polishing device 6 is arranged between the two adsorption fixed discs 4, the fixed frames 5 are arranged at the two ends of the driving polishing device 6, the driven polishing devices 7 are matched at the two ends of the driving polishing device 6, the two driven polishing devices 7 facing one side of the limiting triangular prism 2 are connected through the V-shaped frame 9, driven burnishing device 7 keeps away from the one end of V type frame 9 and connects in mount 5, spacing triangular prism 2 is equipped with two, two spacing triangular prism 2 can cooperate with rhombus dust cover 3, rhombus dust cover 3 contacts with organism 8's top surface, initiative burnishing device 6 is connected with the transmission of motor 1, two towards spacing triangular prism 2 one side form the polishing way between driven burnishing device 7 and initiative burnishing device 6, and this polishing way is used for holding the triangular tube.

The arrangement of the diamond dust cover 3 can cover the driving polishing device 6 and the driven polishing device 7, polishing scraps generated by polishing can be blocked, and the splashing of the polishing scraps is avoided.

The expansion link 10 drives the adsorption fixing disc 4 to ascend and descend to the maximum extent in the polishing channel, and the triangular tube ascends to the maximum height so as to be convenient for matching with the polishing channel, so that the triangular tube can enter the polishing channel to be polished comprehensively.

As shown in fig. 5, aluminum collets x are mounted at both ends of the abrasive belt 62, the aluminum collets x are composed of a collet body x1, sharp teeth x2, a first channel x3, and a clamping groove x4, a first channel x3 and a clamping groove x4 are disposed in the collet body x1, sharp teeth x2 are disposed on both the inner top surface and the inner bottom surface of the clamping groove x4, the sharp teeth x2 and the collet body x1 are integrated, the end of the abrasive belt 62 penetrates through the clamping groove x4, and the sharp teeth x2 are pricked into the abrasive belt 62 to clamp the abrasive belt 62 by the aluminum collets x.

As shown in fig. 5, the transmission belt 65 is provided with a convex groove y1 and a second channel y2, and the second channel y2 is provided with two channels and is distributed on two sides of the convex groove y 1.

As shown in fig. 6, the aluminum jacket clamp x and the transmission belt 65 are fixed by a fixer, the fixer is composed of a U-shaped rod z1, a threaded groove z2 and a screw z3, the threaded groove z2 is arranged in the tail end of each of two limiting legs of the U-shaped rod z1, one limiting leg of the U-shaped rod z1 penetrates through the first channel x3, the other limiting leg penetrates through the second channel y2, and the threaded groove z2 is in threaded fit with the screw z 3.

The nut of the screw z3 is circular, the diameter of the circular shape is larger than the caliber of the channel II y2, and the U-shaped rod z1 is prevented from being separated from the channel II y2 and the channel I x 3.

The caliber of the second channel y2 is equal to that of the first channel x3, and the caliber of the second channel y2 is slightly larger than that of the limiting support leg, so that the limiting support leg can smoothly penetrate through the second channel y2 and the first channel x 3.

Based on the above embodiment, the specific working principle is as follows:

after polishing in the first embodiment, when the abrasive belt 62 is damaged and needs to be replaced, the diamond dust cover 3 is removed, the screw z3 is screwed, so that the screw z3 is disengaged from the threaded groove z2, the U-shaped rod z1 is pulled out from the first channel x3 and the second channel y2, so that the two ends of the abrasive belt 62 are pulled out from the convex groove y1, during installation, the U-shaped rod z1 is inserted into the convex groove y1 through the sleeve clamp body x1 until being limited, then the U-shaped rod z1 passes through the first channel x3 and the second channel y2, and is screwed into the threaded groove z2 through the screw z3, so that the U-shaped rod z1 is fixed, and therefore the abrasive belt 62 and the transmission belt 65 are fixed in a limiting manner, and installation of the abrasive belt 62 is achieved.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A double-station triangular tube polishing machine is characterized in that the structure of the polishing machine comprises a motor (1), a limiting triangular prism (2), a diamond-shaped dust cover (3), adsorption fixing discs (4), fixing frames (5), a driving polishing device (6), driven polishing devices (7), a machine body (8), a V-shaped frame (9) and a telescopic rod (10), wherein the top surface of the machine body (8) is provided with the two adsorption fixing discs (4), the bottom surface of each adsorption fixing disc (4) is connected with the telescopic rod (10), the driving polishing device (6) is arranged between the two adsorption fixing discs (4), the fixing frames (5) are arranged at the two ends of the driving polishing device (6), the driven polishing devices (7) are matched at the two ends of the driving polishing device (6), the two driven polishing devices (7) facing one side of the limiting triangular prism (2) are connected through the V-shaped frame (9), one end, far away from the V-shaped frame (9), of the driven polishing device (7) is connected to the fixing frame (5), two limiting triangular prisms (2) are arranged and matched with the rhombic dust cover (3), and the driving polishing device (6) is in transmission connection with the motor (1);

the driving polishing device (6) comprises a driving bevel gear (61), an abrasive belt (62), a driving roller (63), a driven roller (64) and a transmission belt (65), the transmission belt (65) is matched with the driving roller (63) and the driven roller (64), the driving bevel gear (61) is fixed at both ends of the driving roller (63), the abrasive belt (62) is installed on the transmission belt (65), and the driving roller (63) is connected with the motor (1);

the fixing frame (5) comprises an isosceles frame body (51), mounting holes (52), a U-shaped opening (53), a buckling plate (54) and a deviation-preventing limiting block (55), the isosceles frame body (51) is provided with the mounting holes (52), the two waist surfaces of the isosceles frame body (51) facing the driven polishing device (7) are provided with the U-shaped openings (53), the U-shaped openings (53) are matched with the buckling plate (54), the buckling plate (54) is buckled with the isosceles frame body (51), and the deviation-preventing limiting block (55) is fixed on the buckling plate (54);

the driving roller (63) and the driven roller (64) penetrate through the mounting hole (52), the driving roller (63) penetrates through the mounting hole (52) to be in transition fit with the driving bevel gear (61), the isosceles frame body (51) is vertically connected with the machine body (8), and the driven shaft of the driven polishing device (7) penetrates through the U-shaped opening (53).

2. The double-station triangular tube polishing machine according to claim 1, characterized in that: and a polishing channel is formed between the two driven polishing devices (7) facing one side of the limiting triangular prism (2) and the driving polishing device (6), and is used for accommodating the triangular pipe.

3. The double-station triangular tube polishing machine according to claim 1, characterized in that: the aluminum jacket clamp (x) is mounted at two tail ends of the abrasive belt (62), the aluminum jacket clamp (x) consists of a jacket clamp body (x 1), sharp teeth (x 2), a first channel (x 3) and a clamp groove (x 4), the first channel (x 3) and the clamp groove (x 4) are arranged in the jacket clamp body (x 1), the sharp teeth (x 2) are arranged on the inner top surface and the inner bottom surface of the clamp groove (x 4), the tail end of the abrasive belt (62) penetrates through the clamp groove (x 4), and the sharp teeth (x 2) are pricked into the abrasive belt (62) to clamp the abrasive belt (62) by the aluminum jacket clamp (x);

convex type groove (y 1), No. two passageways (y 2) have been seted up in drive belt (65), No. two passageways (y 2) are equipped with two and distribute in the both sides of convex type groove (y 1).

4. The double-station triangular pipe polishing machine according to claim 3, characterized in that: aluminium collet (x) is fixed through the fixer with drive belt (65), and this fixer comprises U-shaped pole (z 1), thread groove (z 2), screw (z 3), be equipped with thread groove (z 2) in the end of two spacing stabilizer blades of U-shaped pole (z 1) all, a spacing stabilizer blade of U-shaped pole (z 1) runs through in No. one passageway (x 3), and another spacing stabilizer blade runs through in No. two passageways (y 2), thread groove (z 2) and screw (z 3) screw-thread fit.

5. The double-station triangular tube polishing machine according to claim 4, characterized in that: the screw cap of screw (z 3) is circular, and this circular diameter is greater than the bore of No. two passageway (y 2), No. two passageways (y 2) and the bore of No. one passageway (x 3) are equal, the bore of No. two passageway (y 2) slightly is greater than the bore of spacing stabilizer blade.