Shot blasting and sand blasting machine with burr removing function

Abstract

The invention relates to the field of sand blasting, and provides a shot blasting and sand blasting machine with a burr removing function. The lifting part is mounted on the treatment box; the partition box is connected with the movable end of the lifting part and ascends and descends along with the movable end; the two first telescopic pieces are located on the front and rear side walls or the left and right side walls of the partition box; and the clamping piece is mounted on the first telescopic piece and is used for moving along with the first telescopic piece so as to clamp the edge part of the outer side wall of the bearing. When the sand blasting device is used, the side wall of the clamping piece can prevent sand sprayed by the sand blasting head from flying around, on one hand, the sand can be prevented from entering the space between the outer ring and the inner ring of the bearing, and the safety and the stability of the bearing in the using process are protected.

Description

Technical Field

[0001] The invention relates to the field of sandblasting, and more particularly to a shot blasting machine with a burr removal function. Background Art

[0002] In the technical solution disclosed in the prior art (publication (announcement) number: CN108481206B), a large number of structures are used to fix workpieces of different sizes, but the effect is not ideal for annular workpieces, such as bearings.

[0003] First, shot blasting and sand blasting are performed together, and the effects affect each other. The material ejected by sand blasting is used to polish the outer wall of the bearing, while shot blasting is used to adjust the stress of the product and remove burrs. However, during shot blasting, there is no distinction between shot and sand. If the shot contacts the outer wall of the bearing, it will affect the stress of the outer wall and reduce the polishing effect of the outer wall. If the sand contacts the edge of the outer wall of the bearing, the effect of shot blasting in removing burrs will be reduced, and the sand may even enter the area between the inner ring and the outer ring. Incomplete burr removal will not only affect the appearance quality, but also reduce the service life of the bearing to a certain extent, especially in scenarios where the bearing needs to be sealed.

[0004] Therefore, we propose a shot blasting machine with burr removal function and a preparation method thereof to solve the above problems. Summary of the invention

[0005] In view of the problems existing in the prior art, the purpose of the present invention is to provide a shot blasting machine with a burr removal function, which solves the problem that the effects of shot blasting and sand blasting conflict with each other when processing bearings together.

[0006] To solve the above problems, the present invention adopts the following technical solutions.

[0007] A shot blasting machine with a burr removal function comprises a processing box; a lifting member installed on the processing box; a partition box connected to the movable end of the lifting member and rising and falling with the movable end; two first telescopic members located on the front and rear or left and right side walls of the partition box; a clamping member installed on the first telescopic member and used to move with the first telescopic member to clamp the outer side wall edge of the bearing; a sand feeding pipe, one end of which extends into the partition box and is installed on the clamping member; a sand blasting head connected to the sand feeding pipe and used to sandblast the middle part of the outer side wall of the bearing; a second telescopic member installed on the partition box The partition box is mounted on the second telescopic member, and the mounting side wall of the second telescopic member is perpendicular to the mounting side wall of the first telescopic member; the movable part is mounted on the telescopic end of the second telescopic member; the annular airbag is mounted on the movable part, and the second telescopic member is used to drive the movable part and the annular airbag to pass through the hollow central area of ​​the bearing; the air pump is connected to the annular airbag to inflate or deflate the annular airbag; the third telescopic member is mounted on the top of the partition box; the mounting frame is connected to the telescopic end of the third telescopic member; two shot blasting ports are respectively located on both sides of the edge of the outer wall of the bearing, and are used to shot blast the outer wall of the bearing.

[0008] In a new embodiment, a conveying part; the processing box includes an outlet and an inlet, and the conveying part passes through the outlet and the inlet to send the material into the processing box from the inlet and out of the processing box from the outlet; multiple recovery parts are installed under the conveying part for recovering the abrasives and sand produced by shot blasting and sand blasting.

[0009] In a new embodiment, the clamping member includes: a main board, which is connected to the telescopic end of the first telescopic member, and a sandblasting head is installed on the main board; two side panels, which are respectively connected to the parallel two side walls of the main board, and the sandblasting head is located between the two side panels; an arc-shaped opening, which is opened on the side wall of the side panel, and the arc-shaped opening is used to contact the edge portion of the outer wall of the bearing.

[0010] In a new embodiment, a mounting cavity is provided in the side plate; a driving source is installed in the mounting cavity; a plurality of friction wheels are rotatably connected in the mounting cavity and are transmission-connected to the driving source through a transmission belt so that the driving source drives the friction wheels to rotate, and an opening is provided on a side of the mounting cavity close to the bearing, and a side wall of the friction wheel extends outside the mounting cavity through the opening so that the friction wheel contacts the edge of the outer wall of the bearing; and the plurality of friction wheels are axially symmetrical with respect to the transverse axis of the side plate.

[0011] In a new embodiment, the radius of the arc-shaped opening is not less than the radius of the outer side wall of the bearing; and when the radius of the arc-shaped opening is equal to the radius of the outer side wall of the bearing, the height of the side plate is greater than the diameter of the bearing.

[0012] In a new embodiment, it also includes: a connecting rod, which is directly connected to the movable end of the second telescopic member, the movable part is hollow inside, the connecting rod extends into the movable part, and is rotatably connected to the inner wall of the movable part; the air pump is installed in the movable part; an annular rack is fixedly installed in the movable part; a driving motor is installed on the connecting rod; a gear is installed on the power shaft of the driving motor and meshes with the annular rack. When the driving motor is working, the driving gear and the annular rack rotate to drive the movable part to rotate.

[0013] In a new embodiment, two annular slide rails are installed on the inner wall of the movable part, and the two annular slide rails are symmetrically arranged on both sides of the annular rack; multiple groups of sliding members, each group of at least two sliding members are respectively installed on the connecting rod, and the sliding members are slidably connected to the annular slide rails.

[0014] In a new embodiment, anti-slip grooves are provided on the outer side wall of the annular airbag so as to increase the friction between the annular airbag and the inner ring of the bearing when the annular airbag contacts the inner ring.

[0015] In a new embodiment, the mounting frame is in an N-shape, and the shot blasting ports are respectively located at the lower two ends of the N-shape; the shot feeding pipe is connected to the shot blasting ports.

[0016] In a new embodiment, the thickness of the side plate does not exceed one fifth of the bearing width.

[0017] Beneficial effects: Compared with the prior art, the advantages of the present invention are: when the side wall of the bearing is clamped by the clamping member, the side wall of the clamping member can prevent the sand material sprayed by the sandblasting head from scattering around, which can prevent the sand material from entering between the outer ring and the inner ring of the bearing, protecting the safety and stability of the bearing when in use, and ensure that the sand material fully contacts the outer side wall of the bearing, thereby improving the effect of sandblasting and polishing. When blasting at the blasting port, the clamping member is also used to prevent the shot material from contacting the outer side wall of the bearing, ensuring that the shot material only contacts the edge of the outer side wall of the bearing, thereby improving the effect of deburring. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the present invention.

[0019] Figure 2 Schematic diagram of the interior of the processing box.

[0020] Figure 3 This is a schematic diagram of the connection structure in which the arc opening radius is larger than the bearing diameter.

[0021] Figure 4 It is a schematic diagram of the connection structure in which the arc opening radius is equal to the bearing diameter.

[0022] Figure 5 for Figure 4 Schematic diagram of the three-dimensional connection structure between the middle clamping piece and the sand feeding pipe.

[0023] Figure 6 It is a schematic diagram of the connection structure between the partition box and the second telescopic member and the third telescopic member.

[0024] Figure 7 It is a schematic diagram of the internal structure of the activity part.

[0025] Figure 8 Schematic diagram of the external structure of the partition box.

[0026] Fig. 9 Schematic diagram of the middle and edge portions of the outer side wall of the bearing.

[0027] The accompanying drawings in the figure are marked as follows: 1. Processing box; 2. Lifting member; 3. Partition box; 4. First telescopic member; 5. Clamping member; 501. Main board; 502. Side panel; 503. Arc-shaped opening.

[0028] 6. Sand delivery pipe; 7. Sand blasting head; 8. Second telescopic part; 9. Movable part; 10. Annular air bag; 11. Air pump; 12. Third telescopic part; 13. Mounting frame; 14. Shot blasting port.

[0029] 15. Transmission unit; 16. Recovery unit; 17. Driving source; 18. Friction wheel.

[0030] 19. Connecting rod; 20. Annular rack; 21. Driving motor; 22. Gear; 23. Annular slide rail; 24. Sliding part; 25. Anti-slip pattern.

[0031] 26. Pill delivery tube. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention.

[0033] The embodiment of the present application solves the problem of mutual interference between sandblasting and shot blasting when working together by providing a shot blasting machine with a burr removal function. When in use, sandblasting and shot blasting can be performed simultaneously without interfering with bearing products, thereby improving the processing quality of bearings.

[0034] The technical solution in the embodiment of the present application is to solve the above technical problems, and the overall idea is as follows: Based on the different effects of shot blasting and sand blasting. Sand blasting the surface of the product can make the surface of the product form a beautiful matte surface. Sand blasting is a surface treatment process for workpieces. It uses compressed air to evenly spray copper ore sand, quartz sand, corundum and other materials on the surface of the workpiece, which impacts and cuts the surface of the workpiece to improve the cleanliness and clarity of the workpiece. Therefore, the surface of the workpiece is generally sandblasted before coating. In addition, sand blasting can also deal with burrs, but for burrs, the effect of sand blasting is not ideal.

[0035] Shot peening is mainly to spray the shot through high-pressure air to adjust the stress on the workpiece surface. Shot peening and shot peening have similar functions, but they mainly use different structures. Shot peening mainly uses rotating equipment to launch the shot.

[0036] See also Figure 1-Figure 9 A shot blasting machine with burr removal function includes a processing box 1; a lifting member 2, which is installed on the processing box 1; a partition box 3, which is connected to the movable end of the lifting member 2 and rises and falls with the movable end; two first telescopic members 4, which are located on the front and rear or left and right side walls of the partition box 3; a clamping member 5, which is installed on the first telescopic member 4 and is used to move with the first telescopic member 4 to clamp the outer wall edge of the bearing; a sand feeding pipe 6, one end of which extends into the partition box 3 and is installed on the clamping member 5; a sand blasting head 7, which is connected to the sand feeding pipe 6 and is used to sandblast the middle part of the outer wall of the bearing; a second telescopic member 8, which is installed on the partition box 3 , and the mounting side wall of the second telescopic member 8 is perpendicular to the mounting side wall of the first telescopic member 4; the movable part 9 is mounted on the telescopic end of the second telescopic member 8; the annular airbag 10 is mounted on the movable part 9, and the second telescopic member 8 is used to drive the movable part 9 and the annular airbag 10 to pass through the hollow center area of ​​the bearing; the air pump 11 is connected to the annular airbag 10 to inflate or deflate the annular airbag 10; the third telescopic member 12 is mounted on the top of the partition box 3; the mounting frame 13 is connected to the telescopic end of the third telescopic member 12; two shot blasting ports 14 are respectively located on both sides of the edge of the outer wall of the bearing, and are used to shot blast the outer wall of the bearing.

[0037] The partition box 3 can be made of metal, and the first telescopic member 4, the second telescopic member 8 and the third telescopic member 12 can all be made of cylinders, hydraulic cylinders or electric telescopic rods. When clamping the side wall of the bearing, the material hardness of the side plate 502 used should be lower than that of the bearing to avoid leaving scratches on the bearing.

[0038] In a new embodiment, refer to Figure 1 and Figure 2 , a conveying part 15; the processing box 1 includes an outlet and an inlet, and the conveying part 15 runs through the outlet and the inlet to send the material into the processing box 1 from the inlet and send it out of the processing box 1 from the outlet; a plurality of recovery parts 16 are installed under the conveying part 15, and are used to recover the shot and sand produced by shot blasting and sand blasting.

[0039] The conveying part 15 can adopt a conveyor belt, and the inlet and outlet of the processing box 1 can be set to be half open to facilitate the entry of the bearing and prevent the material from flying out.

[0040] The recovery part 16 can adopt the recovery part 16 in the prior art, and can adopt a method of recovering the shot and the sand separately.

[0041] In a new embodiment, the clamping member 5 includes: a main board 501, which is connected to the telescopic end of the first telescopic member 4, and the sandblasting head 7 is installed on the main board 501; two side panels 502, which are respectively connected to the parallel two side walls of the main board 501, and the sandblasting head 7 is located between the two side panels 502; an arc-shaped opening 503, which is opened on the side wall of the side panel 502, and the arc-shaped opening 503 is used to contact the edge portion of the outer wall of the bearing.

[0042] The main board 501 can provide space for the installation of the side board 502, and the main board 501 provides a position for the installation of the sandblasting head 7, so that when the sandblasting head 7 is sandblasting, the side board 502 can block the flying sand. In addition, a top board can be arranged above the side board 502 and the main board 501. The bottom of the side board 502 and the main board 501 is open, so that the sand is conveniently recovered by the recovery unit 16.

[0043] The arc-shaped opening 503 can ensure that the side plate 502 can cover more areas, further preventing the sand from contacting the bearing.

[0044] In a new embodiment, refer to Figure 3 , Figure 4 and Figure 5 , a mounting cavity is provided in the side plate 502; a driving source 17 is installed in the mounting cavity; a plurality of friction wheels 18 are rotatably connected in the mounting cavity and are transmission-connected to the driving source 17 through a transmission belt, so that the driving source 17 drives the friction wheels 18 to rotate, and an opening is provided on a side of the mounting cavity close to the bearing, and a side wall of the friction wheel 18 extends outside the mounting cavity through the opening so that the friction wheel 18 contacts the edge of the outer wall of the bearing; and the plurality of friction wheels 18 are axially symmetrical with respect to the transverse axis of the side plate 502.

[0045] By setting the driving source 17 and the friction wheel 18, the outer ring of the bearing can be driven to rotate, so as to facilitate the grinding of the outer ring of the entire bearing. In addition, the driving source 17 can be a servo motor, or a programmable stepping motor.

[0046] An opening is provided, and a gap between the opening and the friction wheel 18 is small, so that abrasive materials will not enter the interior of the installation cavity.

[0047] In a new embodiment, see Figure 4, the radius of the arc-shaped opening 503 is not less than the radius of the outer wall of the bearing; and when the radius of the arc-shaped opening 503 is equal to the radius of the outer wall of the bearing, the height of the side plate 502 is greater than the diameter of the bearing.

[0048] When the radius of the arc-shaped opening 503 is equal to the radius of the outer wall of the bearing, the two arc-shaped openings 503 completely wrap the bearing, and the side plate 502 can completely seal the bearing from the side, so that the sand material sprayed by the sandblasting head 7 will never contact the outside of the bearing, avoiding mutual influence between the sand material and the shot material.

[0049] In a new embodiment, see Figure 6 and Figure 7 , also includes: a connecting rod 19, which is directly connected to the movable end of the second telescopic member 8. The movable part 9 is hollow inside, and the connecting rod 19 extends into the movable part 9 and is rotatably connected to the inner wall of the movable part 9; the air pump 11 is installed in the movable part 9; the annular rack 20 is fixedly installed in the movable part 9; the driving motor 21 is installed on the connecting rod 19; the gear 22 is installed on the power shaft of the driving motor 21 and meshes with the annular rack 20. When the driving motor 21 is working, the driving gear 22 and the annular rack 20 rotate to drive the movable part 9 to rotate.

[0050] By cooperating with the driving motor 21, the gear 22 and the annular rack 20, the movable part 9 and the annular airbag 10 can be ensured to rotate stably, and these structures can enter the center of the inner ring of the bearing without affecting the rotation of the outer ring.

[0051] In a new embodiment, two annular slide rails 23 are installed on the inner wall of the movable part 9, and the two annular slide rails 23 are symmetrically arranged on both sides of the annular rack 20; multiple groups of sliding members 24, each group of at least two sliding members 24 are respectively installed on the connecting rod 19, and the sliding members 24 are slidably connected to the annular slide rails 23.

[0052] The annular slide rail 23 and the sliding member 24 are arranged to ensure the stability of the movable part 9 when rotating along the support rod, and the bearing will not be skewed due to movement or loose connection. In addition, the sliding member 24 is arranged in multiple groups to further ensure the stability of the movable part 9 when rotating.

[0053] In a new embodiment, see Figure 7 The anti-slip pattern 25 is arranged on the outer side wall of the annular airbag 10 so as to increase the friction between the annular airbag 10 and the inner ring of the bearing when the annular airbag 10 contacts the inner ring.

[0054] The anti-slip pattern 25 can increase the friction force when in contact with the inner ring of the bearing, thereby ensuring that the inner ring of the bearing stably rotates with the annular airbag 10 .

[0055] In a new embodiment, the mounting frame 13 is in an N-shape, and the shot blasting ports 14 are respectively located at two ends of the N-shape; the shot feeding pipe 26 is connected to the shot blasting ports 14 .

[0056] This arrangement is to ensure that the shot blasting opening 14 or the shot peening opening can blast or peen the two sides of the bearing at the same time, so that the entire area of ​​the bearing can be processed quickly.

[0057] In a new embodiment, the thickness of the side plate 502 does not exceed one fifth of the bearing width.

[0058] This arrangement is to ensure that the side plate 502 can stably clamp the bearing, while not affecting the processing area of ​​the bearing, thereby ensuring the quality of the bearing processing.

[0059] When the bearing workpiece needs to be processed, the workpiece is first placed on the conveying part 15, and the conveying part 15 sends the workpiece into the processing box 1, and then the lifting part 2 drives the partition box 3 to move, so that the workpiece enters the partition box 3. The first telescopic part 4 drives the clamping part 5 to move, and the two clamping parts 5 respectively clamp the edge positions of the outer wall of the bearing, and the sandblasting head 7 is located between the two side plates 502, so that when sandblasting the middle of the outer wall of the bearing, the sand is blocked by the side plate 502, and will not contact the side wall or inner ring of the bearing, and cannot enter between the inner ring and the outer ring. In addition, when shot blasting or shot blasting, the third telescopic part 12 first drives the mounting frame 13 to move, and the mounting frame 13 drives the two shot blasting ports 14 to move. The shot blasting ports 14 here can also be replaced by shot blasting ports. Move the shot blasting port 14 or shot blasting port to the left and right sides of the bearing, and the inner ring and outer ring of the bearing can be seen from the left and right sides of the bearing at the same time. In this way, the shot material of shot blasting or shot peening can contact the side wall of the bearing and grind the burrs of the side wall of the bearing.

[0060] After the conveying part 15 conveys the bearing into the processing box 1, the second telescopic member 8 can first drive the movable part 9 to move, so that the movable part 9 and the annular airbag 10 enter the center of the bearing, and then the air pump 11 inflates the annular airbag 10 to inflate the annular airbag 10 until the side wall of the annular airbag 10 contacts the inner ring of the bearing, so that the position of the bearing can be fixed more stably, which is convenient for shot blasting or sand blasting of various areas of the bearing.

[0061] In the process of sandblasting, shot peening or blasting, in order to ensure that the entire side wall of the bearing is processed, the driving source 17 and the transmission belt can be used to drive the friction wheel 18 to rotate, and after the bearing is clamped by the side plate 502, the friction wheel 18 contacts the outer side wall of the bearing. When the friction wheel 18 rotates, the friction between the friction wheel 18 and the bearing can drive the outer ring of the bearing to rotate, so that the entire outer side wall of the bearing can be polished.

[0062] When processing the outer wall of the inner ring, the inner ring needs to rotate, so the driving motor 21 drives the gear 22 to rotate, the gear 22 drives the annular rack 20 to rotate, the annular rack 20 drives the movable part 9 and the annular airbag 10 to rotate, and the friction between the annular airbag 10 and the inner ring of the bearing drives the inner ring to rotate, so that the burrs of the outer wall of the inner ring can be processed and polished. In the processing process, the outer ring or inner ring of the bearing can be processed first, and then the inner ring or outer ring of the bearing can be processed, that is, the inner ring and outer ring of the bearing can be processed separately during shot blasting or sand blasting.

[0063] The above is only a preferred specific implementation of the present invention; however, the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and its improved conception within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

[0064] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0065] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A shot blasting machine with burr removal function, It is characterized in that include: Processing box (1); A lifting member (2) mounted on the processing box (1); A partition box (3) is connected to the movable end of the lifting member (2) and rises and falls along with the movable end; Two first telescopic members (4) are located on the front and rear or left and right side walls of the partition box (3); A clamping member (5) mounted on the first telescopic member (4) and used to move along with the first telescopic member (4) to clamp an edge portion of an outer wall of the bearing; A sand delivery pipe (6), one end of which extends into the partition box (3) and is mounted on the clamping member (5); A sandblasting head (7) connected to the sand delivery pipe (6) and used for sandblasting the middle part of the outer wall of the bearing; A second telescopic member (8) is mounted on the partition box (3), and a mounting side wall of the second telescopic member (8) is perpendicular to a mounting side wall of the first telescopic member (4); A movable portion (9) mounted on the telescopic end of the second telescopic member (8); An annular airbag (10) is mounted on the movable portion (9), and the second telescopic member (8) is used to drive the movable portion (9) and the annular airbag (10) to pass through the hollow central area of ​​the bearing; An air pump (11) is connected to the annular airbag (10) to inflate or deflate the annular airbag (10); A third telescopic member (12) is installed on the top of the partition box (3); A mounting frame (13) connected to the telescopic end of the third telescopic member (12); Two shot blasting openings (14) are respectively located on two sides of the edge of the outer side wall of the bearing and are used for blasting the outer side wall of the bearing.

2. A shot blasting machine with burr removal function as claimed in claim 1, It is characterized in that Also includes: Transmission unit (15); The processing box (1) comprises an outlet and an inlet, and the conveying part (15) penetrates the outlet and the inlet to convey the material into the processing box (1) from the inlet and convey the material out of the processing box (1) from the outlet; A plurality of recovery parts (16) are installed below the conveying part (15) and are used to recover the shot and sand produced by shot blasting and sand blasting.

3. A shot blasting machine with burr removal function as claimed in claim 1, It is characterized in that The clamping member (5) comprises: A main board (501) connected to the telescopic end of the first telescopic member (4), and a sandblasting head (7) mounted on the main board (501); Two side plates (502) are respectively connected to two parallel side walls of the main plate (501), and the sandblasting head (7) is located between the two side plates (502); The arc-shaped opening (503) is opened on the side wall of the side plate (502), and the arc-shaped opening (503) is used to contact the edge portion of the outer side wall of the bearing.

4. A shot blasting machine with burr removal function as claimed in claim 3, It is characterized in that Also includes: An installation cavity is provided in the side plate (502); A driving source (17) is installed in the installation cavity; A plurality of friction wheels (18) are rotatably connected in the installation cavity and are transmission-connected to a driving source (17) via a transmission belt, so that the driving source (17) drives the friction wheels (18) to rotate, and an opening is provided on a side of the installation cavity close to the bearing, and a side wall of the friction wheel (18) extends outside the installation cavity through the opening so that the friction wheel (18) contacts an edge of an outer wall of the bearing; Furthermore, the plurality of friction wheels (18) are axially symmetrical about the transverse axis of the side plate (502).

5. A shot blasting machine with burr removal function as claimed in claim 3, It is characterized in that The radius of the arc-shaped opening (503) is not less than the radius of the outer side wall of the bearing; Furthermore, when the radius of the arc-shaped opening (503) is equal to the radius of the outer wall of the bearing, the height of the side plate (502) is greater than the diameter of the bearing.

6. A shot blasting machine with burr removal function as claimed in claim 1, It is characterized in that Also includes: A connecting rod (19) is directly connected to the movable end of the second telescopic member (8); the movable portion (9) is hollow inside, and the connecting rod (19) extends into the movable portion (9) and is rotatably connected to the inner wall of the movable portion (9); The air pump (11) is installed in the movable part (9); An annular rack (20) fixedly mounted in the movable portion (9); A driving motor (21) mounted on the connecting rod (19); The gear (22) is mounted on the power shaft of the driving motor (21) and meshes with the annular rack (20). When the driving motor (21) is working, the driving gear (22) and the annular rack (20) rotate to drive the movable part (9) to rotate.

7. A shot blasting machine with burr removal function as claimed in claim 6, It is characterized in that Also includes: Two annular slide rails (23) are mounted on the inner wall of the movable portion (9), and the two annular slide rails (23) are symmetrically arranged on both sides of the annular rack (20); A plurality of groups of sliding members (24), each group of at least two sliding members (24) are respectively mounted on the connecting rods (19), and the sliding members (24) are slidably connected to the annular slide rails (23).

8. A shot blasting machine with burr removal function as claimed in claim 1, It is characterized in that Also includes: The anti-slip pattern (25) is arranged on the outer side wall of the annular airbag (10) so as to increase the friction between the annular airbag (10) and the inner ring of the bearing when the annular airbag (10) contacts the inner ring.

9. A shot blasting machine with burr removal function as claimed in claim 1, It is characterized in that The mounting frame (13) is in the shape of an N letter, and the shot blasting openings (14) are respectively located at two ends of the lower side of the N letter; The shot delivery pipe (26) is connected with the shot blasting port (14).

10. A shot blasting machine with burr removal function as claimed in claim 3, It is characterized in that The thickness of the side plate (502) does not exceed one fifth of the width of the bearing.

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