Workpiece surface sand blasting and polishing device for insulating bearing processing

Abstract

The application discloses a workpiece surface sand blasting and grinding device for insulating bearing machining, and relates to the technical field of insulating bearing machining.The device comprises a shell, a baffle and a cover plate are installed on the shell, an air pump is installed on the top of the shell, a first connecting pipe is connected below the air pump, a driving assembly is installed below the first connecting pipe, a rotating ring and a second connecting pipe are installed below the driving assembly, a third connecting pipe and an electric push rod are arranged on the side of the second connecting pipe, a first sand blasting pipe is installed below the electric push rod, a second sand blasting pipe is hinged to the first sand blasting pipe, a butt joint assembly is installed between the first sand blasting pipe and the second sand blasting pipe, the top of the third connecting pipe is fixedly connected with a first extension pipe, and a second extension pipe is slidably installed on the outer side of the first extension pipe.The device solves the problems that the existing sand blasting device cannot switch between the inner wall sand blasting and the surface sand blasting of the bearing seat ring and cannot recycle the abrasive.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of insulation bearing processing, and particularly relates to a workpiece surface sand blasting and polishing device for insulation bearing processing. BACKGROUND

[0002] Insulation bearings are mainly used for providing excellent electrical isolation performance and high-strength mechanical support, and are widely applied to fields such as high-voltage electrical equipment, rail transit and wind power generation. The type of bearing has extremely high requirements on processing precision and surface quality, and the surface state of the workpiece directly relates to the overall performance and service life. In order to improve the surface quality of the insulation bearing, a sand blasting and polishing process is usually used for treatment. However, the current sand blasting and polishing equipment still has some deficiencies.

[0003] An invention patent with the publication number CN110695854B discloses a sand blasting device applied to inner surface treatment of a bearing mounting hole, which comprises a sand material conveying mechanism and a sand blasting mechanism. One end of the sand blasting mechanism is screw-connected to the sand material conveying mechanism, and the other end of the sand blasting mechanism is embedded and mounted in the bearing mounting hole. The original sand blasting device cannot change the direction in the hole by changing the forward spraying mode, and thus cannot perform sand blasting treatment on the inner wall of the hole. The sand blasting device is applied to corrosion-resistant sand blasting of a bearing mounting hole of a wind power yawing and variable-pitch shaft, and the sand blasting is completed by the device, and then paint spraying treatment is performed, so that the paint surface bonding force meets the requirements. Although the above device can realize sand blasting on the inner wall of the bearing workpiece, it cannot switch between sand blasting on the inner wall of the bearing seat ring and sand blasting on the surface, and the abrasive cannot be recycled.

[0004] An invention patent with the publication number CN103567879B discloses a multi-station rotary feeding sand blasting machine, which comprises a rotary spray pipe, a guide rail, a walking trolley arranged on the guide rail, a plurality of unpowered support trolleys, a sand blasting tank fixed on the walking trolley, a fixed spray pipe connected with the lower outlet of the sand blasting tank, a liftable fixed support fixed on the walking trolley, a rotary spray pipe driving system, a support trolley lifting device and a supporting roller supporting the rotary spray pipe arranged on the unpowered support trolleys, the right end of the fixed spray pipe is fixed on the liftable fixed support, the rotary spray pipe driving system comprises a speed reducer, a driving sprocket driven by the speed reducer, a coupling, a plurality of driven sprockets driven by the driving sprocket, the left end of the coupling is fixedly connected with the fixed spray pipe, the right end of the coupling is connected with the left end of the rotary spray pipe through a bearing and a support, and the driven sprockets are fixed on the rotary spray pipe. The front end of the rotary spray pipe is provided with a nozzle, and the spraying direction forms an angle of 45 degrees with the horizontal plane, so that sand blasting and shot blasting treatment of multiple workpieces can be realized. Although the above device can realize multi-station sand blasting treatment, it cannot adjust the abrasive recycling position by using the power of the abrasive recycling structure when the bearing parts are placed. SUMMARY

[0005] The present application aims at providing a workpiece surface sand blasting and polishing device for insulating bearing machining to solve the problem that the existing sand blasting device cannot switch between the inner wall sand blasting and the surface sand blasting of the bearing race and cannot recycle the abrasive material for reuse.

[0006] To achieve the above-mentioned object, the present application provides the following technical scheme: a workpiece surface sand blasting and polishing device for insulating bearing machining, comprising a shell, a baffle and a cover plate are installed on the shell, a gas pump is installed on the top of the shell, a first connecting pipe is connected below the gas pump, a driving assembly is installed below the first connecting pipe, a rotating ring and a second connecting pipe are installed below the driving assembly, a third connecting pipe and an electric push rod are arranged on the side of the second connecting pipe, a first sand blasting pipe is installed below the electric push rod, a second sand blasting pipe is hinged on the first sand blasting pipe, a butt joint assembly is installed between the first sand blasting pipe and the second sand blasting pipe, a first extension pipe is fixedly connected above the third connecting pipe, a second extension pipe is slidably installed on the outer side of the first extension pipe, a recovery pipe is installed on the second extension pipe, a second motor is installed on the recovery pipe, a first bevel gear and a connecting rod are fixedly connected on the output shaft of the second motor, a helical blade is installed on the connecting rod, a switching assembly is installed on the recovery pipe, a screw rod is rotatably installed in the first extension pipe, a key rod is fixedly connected on the screw rod, a first key sleeve and a second key sleeve are keyed on the outer side of the key rod, a second bevel gear is installed on the first key sleeve, and the screw rod and the second extension pipe are threadedly connected.

[0007] As a further scheme of the present application: a glove interface is installed on the shell, the baffle and the shell are slidably connected, and the cover plate and the shell are rotatably connected.

[0008] As a further scheme of the present application: a support block is installed in the middle of the shell, a guide ring is installed between the support block and the shell, the guide ring comprises an annular body fixedly connected between the support block and the shell, the height of the annular surface of the annular body continuously changes along the circumferential direction thereof, forming at least one lowest collection area and a gradually symmetrical and increasing flow guide slope from the collection area to the two side walls.

[0009] As a further scheme of the present application: the driving assembly comprises a fixed sleeve fixedly installed at the bottom of the first connecting pipe, a fixed frame is fixedly connected at the bottom of the fixed sleeve, a first motor is installed on the fixed frame, a cylindrical gear is fixedly connected on the output shaft of the first motor, a tooth ring is meshingly connected on the outer side of the cylindrical gear, a first rotating cylinder is installed on the tooth ring, and the first rotating cylinder and the second connecting pipe are fixedly connected.

[0010] As a further scheme of the present application: an opening is formed in the second connecting pipe, the third connecting pipe and the second connecting pipe are in communication with each other through the rotating ring and the opening, and the first sand blasting pipe and the second connecting pipe are slidably connected.

[0011] As a further scheme of the present application: the docking assembly comprises a first connecting plate fixedly connected to the second sand blasting pipe, a first spring is mounted in the first connecting plate, a clamping block is mounted on the first spring, a link plate is fixedly arranged on the side surface of the clamping block, and a docking hole is formed in the second connecting plate fixedly connected to the first sand blasting pipe.

[0012] As a further scheme of the present application: a rotating plate is rotatably mounted on the first sand blasting pipe, a first magnetic block is fixedly arranged on the second sand blasting pipe, and a second magnetic block is fixedly arranged on the first sand blasting pipe.

[0013] As a further scheme of the present application: the switching assembly comprises a mounting plate fixedly connected to the electric push rod, a link ring is mounted on the mounting plate, a first sliding plate is slidably mounted in the link ring, a jacking rod is fixedly arranged on the first sliding plate, a jacking block is mounted on the top of the jacking rod, a pressing block is arranged on the side surface of the jacking block, a second sliding plate is mounted on the pressing block, a guide rod is penetratingly arranged in the second sliding plate, the guide rod is fixedly connected between the second sliding plate and the recovery pipe, a second spring is mounted between the second sliding plate and the recovery pipe, and the second sliding plate is rotatably connected with the first key sleeve.

[0014] As a further scheme of the present application: inclined surfaces are arranged on the jacking block and the pressing block, and the pressing blocks are symmetrically arranged on both sides of the second sliding plate.

[0015] As a further scheme of the present application: a gap exists between the first bevel gear and the second bevel gear, the central axes of the second bevel gear, the first key sleeve and the key rod are collinear, a connecting shell is mounted on the recovery pipe, and the first bevel gear and the second bevel gear are located in the connecting shell.

[0016] Compared with the prior art, the present application has the following advantages:

[0017] The device is provided with an air pump, a second motor, a connecting rod, helical blades and a guide ring, which realizes the functions of centralized collection and recycling of the abrasive, the abrasive can be automatically collected to the lowest area of the guide ring in the process of sand blasting by using the guide inclined surface on the guide ring, the abrasive can be delivered to the top of the recovery pipe when the helical blades rotate, and then the abrasive is reabsorbed for use by using the low pressure generated by the high-speed airflow of the air pump, the device can complete the continuous sand blasting work without external feeding, solves the problem that the existing sand blasting device cannot recycle and recycle the abrasive, and not only can the device continuously recycle and recycle the abrasive, but also can centrally guide and collect the abrasive, thereby enhancing the convenience of the device in use.

[0018] The first bevel gear, the second bevel gear and the switching assembly are arranged on the device, when the first bevel gear and the second bevel gear are not engaged, when the first bevel gear rotates, the feeding function is realized through the spiral blade, when the device needs to place the bearing race in the processing area, the second sand blasting pipe is moved upward by shortening the electric push rod, the top block on the switching assembly abuts against the pressing block, so that the pressing block drives the first key sleeve and the second bevel gear to move in the direction of the first bevel gear until the first bevel gear and the second bevel gear are engaged, at this time, the second motor can not only drive the spiral blade to rotate to realize the abrasive feeding function, but also can drive the second bevel gear and the key rod to rotate through the first bevel gear, and then drive the screw rod to rotate, when the screw rod rotates, the recovery pipe can move under the guidance of the third connecting pipe, the first extension pipe and the second extension pipe, so that the device can adaptively adjust the recovery position when recovering the abrasive, and the problem that the existing sand blasting device cannot adjust the abrasive recovery position by using the power of the abrasive recovery structure when placing the bearing parts is solved.

[0019] The driving assembly and the butt joint assembly are arranged on the device, when the first sand blasting pipe and the second sand blasting pipe on the device are communicated with each other, the abrasive can be sprayed to the inner wall of the bearing race in the horizontal direction through the first sand blasting pipe and the second sand blasting pipe, in the process of sand blasting, the first sand blasting pipe and the second sand blasting pipe are driven to rotate through the driving assembly, so that the sand blasting port of the second sand blasting pipe makes circular motion, and the inner wall of the bearing race is sprayed, after the second sand blasting pipe is rotated through the butt joint assembly, the first magnetic block is used to adsorb the second magnetic block, so that the device directly sprays sand vertically through the first sand blasting pipe to spray the surface of the bearing race, the function of switching the sand blasting position is realized, and the problem that the existing sand blasting device cannot be switched between the inner wall sand blasting and the surface sand blasting of the bearing race is solved. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a whole structure schematic view of the application;

[0021] Figure 2 It is a shell internal structure schematic view of the application;

[0022] Figure 3 It is a shell and guide ring connection structure schematic view of the application;

[0023] Figure 4 It is a support block and guide ring connection structure schematic view of the application;

[0024] Figure 5 It is a gas pump and first connecting pipe connection structure schematic view of the application;

[0025] Figure 6 It is a link ring and first sliding plate connection structure schematic view of the application;

[0026] Figure 7 It isFigure 6 Enlarged view of the structure at A;

[0027] Figure 8 For Figure 6 Enlarged view of the structure at B;

[0028] Figure 9 For Figure 6 Enlarged view of the structure at C;

[0029] Figure 10 For Enlarged view of the structure at D;

[0030] Figure 11 Enlarged view of the structure at E;

[0031] Figure 12 For Figure 11 Enlarged view of the structure at D;

[0032] Figure 13 For Figure 11 Enlarged view of the structure at E;

[0033] Figure 14 For Enlarged view of the structure at D;

[0034] The drawings show: 1, housing; 2, glove interface; 3, baffle; 4, cover plate; 5, air pump; 6, first connecting pipe; 7, drive assembly; 701, fixed sleeve; 702, first motor; 703, fixed frame; 704, cylindrical gear; 705, tooth ring; 706, first rotating drum; 8, rotating ring; 9, second connecting pipe; 10, third connecting pipe; 11, electric push rod; 12, first sand blasting pipe; 13, second sand blasting pipe; 14, docking assembly; 1401, first connecting plate; 1402, first spring; 1403, clamping block; 1404, adapter plate; 1405, second connecting plate; 1406, docking hole; 1407, first magnetic block; 1408, second magnetic block; 1409, rotating plate; 15, support block; 16, guide ring; 1601, annular body; 1602, collection area; 1603, flow guide slope; 17, switching assembly; 1701, mounting plate; 1702, adapter ring; 1703, first sliding plate; 1704, jacking rod; 1705, jacking block; 1706, pressing block; 1707, second spring; 1708, second sliding plate; 1709, guide rod; 18, recovery pipe; 19, second motor; 20, first bevel gear; 21, connecting rod; 22, helical blade; 23, second bevel gear; 24, connecting shell; 25, first key sleeve; 26, key rod; 27, screw rod; 28, first extension pipe; 29, second extension pipe; 30, second key sleeve; 31, opening. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those of ordinary skill in the art without creative work belong to the scope of protection of the present application.

[0036] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the present application and simplify the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application. In addition, the terms "first", "second", "third" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance. In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "setting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances. The embodiments will be described below according to the overall structure of the present application.

[0037] Embodiment 1: as Figures 1-14The embodiment shown proposes a workpiece surface sand blasting device for insulating bearing machining, which comprises a shell 1, a baffle 3 and a cover plate 4 are installed on the shell 1, a gas pump 5 is installed on the top of the shell 1, a first connecting pipe 6 is connected below the gas pump 5, a driving assembly 7 is installed below the first connecting pipe 6, a rotating ring 8 and a second connecting pipe 9 are installed below the driving assembly 7, a third connecting pipe 10 and an electric push rod 11 are arranged on the side of the second connecting pipe 9, a first sand blasting pipe 12 is installed below the electric push rod 11, a second sand blasting pipe 13 is hinged on the first sand blasting pipe 12, a butt joint assembly 14 is installed between the first sand blasting pipe 12 and the second sand blasting pipe 13, a first extension pipe 28 is fixedly connected above the third connecting pipe 10, a second extension pipe 29 is slidingly installed on the outer side of the first extension pipe 28, a recovery pipe 18 is installed on the second extension pipe 29, a second motor 19 is installed on the recovery pipe 18, a first bevel gear 20 and a connecting rod 21 are fixedly connected on the output shaft of the second motor 19, a spiral blade 22 is installed on the connecting rod 21, the electric push rod 11 is shortened, the bearing ring is placed in the sand blasting machining area in the shell 1, then the electric push rod 11 is lengthened, the bearing ring is sleeved on the outer side of the second sand blasting pipe 13, at this time, the second motor 19 can be started, the connecting rod 21 and the spiral blade 22 are driven to rotate by the second motor 19, the abrasive in the shell 1 is conveyed to the inside of the third connecting pipe 10 when the spiral blade 22 rotates, the abrasive in the third connecting pipe 10 is sucked by starting the gas pump 5 and using the low pressure area generated by high speed airflow, the abrasive is conveyed to the second connecting pipe 9 through the first connecting pipe 6, the abrasive is guided by the second sand blasting pipe 13 below the first sand blasting pipe 12, and the abrasive is horizontally sprayed to the inner wall of the bearing ring, so that the sand blasting treatment of the inner wall of the bearing ring is realized. The device can change the state of the second sand blasting pipe 13 from Figure 13 to Figure 8The device is always kept closed during work, and the abrasive can be collected into the third connecting pipe 10 through the spiral blade 22. The switching assembly 17 is installed on the recovery pipe 18, the screw rod 27 is rotatably installed in the first extension pipe 28, the key rod 26 is fixedly connected to the screw rod 27, the first key sleeve 25 and the second key sleeve 30 are connected to the outer side of the key rod 26, the second bevel gear 23 is installed on the first key sleeve 25, and the screw rod 27 and the second extension pipe 29 are in threaded connection. When the electric push rod 11 is shortened, the first bevel gear 20 and the second bevel gear 23 are engaged through the switching assembly 17, and when the first bevel gear 20 is driven to rotate by the second motor 19, the second bevel gear 23 and the first key sleeve 25 are rotated, the second key sleeve 30 and the screw rod 27 are rotated through the key rod 26. When the screw rod 27 rotates, the recovery pipe 18 slides on the third connecting pipe 10 under the guidance of the first extension pipe 28 and the second extension pipe 29, the position of the bottom of the recovery pipe 18 is changed, the rotating direction of the screw rod 27 is changed by changing the rotating direction of the first bevel gear 20 driven by the second motor 19, and then the moving direction of the recovery pipe 18 is changed, so that the device can change the abrasive recovery position by using the driving force of the feed.

[0038] Embodiment 2: The scheme in embodiment 1 is further introduced in combination with a specific working mode, and details are described below:

[0039] As shown in Figures 1-3 , as a preferred embodiment, on the basis of the above mode, further, the glove interface 2 is installed on the shell 1, which facilitates the subsequent movement of the bearing workpiece to the sandblasting area in a closed state, the baffle 3 is in sliding connection with the shell 1, and the cover plate 4 is in rotary connection with the shell 1. The baffle 3 can block the cover plate 4, so as to ensure the closed effect of the whole device.

[0040] As shown in Figure 4 , as a preferred embodiment, on the basis of the above mode, further, the support block 15 is installed in the middle of the shell 1, and the guide ring 16 is installed between the support block 15 and the shell 1. The guide ring 16 comprises a ring body 1601 fixedly connected between the support block 15 and the shell 1, the height of the annular surface of the ring body 1601 continuously changes along the circumferential direction, forming at least one lowest collection area 1602 and a gradually symmetrical and increasing flow guide slope 1603 from the collection area 1602 to the two side walls. The support block 15 in the circular truncated cone structure cooperates with the ring body 1601 of the guide ring 16 to guide the abrasive, so that the abrasive moves along the flow guide slope 1603 to the collection area 1602, so as to be recycled and reused.

[0041] As shown in Figure 2 ,Figure 6 , Figure 7 and Figure 14 As shown, in a preferred embodiment, based on the above method, the drive assembly 7 further includes a fixing sleeve 701 fixedly installed at the bottom of the first connecting pipe 6. A fixing frame 703 is fixedly connected to the bottom of the fixing sleeve 701. A first motor 702 is mounted on the fixing frame 703. A cylindrical gear 704 is fixedly connected to the output shaft of the first motor 702. A gear ring 705 is meshed with the outer side of the cylindrical gear 704. A first rotating drum 706 is mounted on the gear ring 705. The first rotating drum 706 is fixedly connected to the second connecting pipe 9. Figure 6 and Figure 14 As can be seen, the first connecting pipe 6, the fixed sleeve 701, and the fixed bracket 703 are all fixed. The first motor 702 drives the cylindrical gear 704 to rotate, which in turn drives the gear ring 705 and the second connecting pipe 9 to rotate. This allows the device to perform a circumferential sandblasting treatment along the inner wall of the bearing seat. When the device is in use, the gear ring 705 and the cylindrical gear 704 are kept in a closed state to prevent the abrasive from affecting the normal operation of the device.

[0042] like Figure 6 and Figure 8 As shown, in a preferred embodiment, based on the above method, the second connecting pipe 9 is further provided with an opening 31, and the third connecting pipe 10 is connected to the second connecting pipe 9 through the rotating ring 8 and the opening 31, so as to ensure that the abrasive can be sent from the third connecting pipe 10 into the second connecting pipe 9. The first sandblasting pipe 12 and the second connecting pipe 9 are slidably connected. The abrasive in the third connecting pipe 10 is sucked into the second connecting pipe 9 and the first sandblasting pipe 12 by the negative pressure generated by the high-speed airflow. After the sandblasting is completed, the sandblasted bearing seat can be removed by sliding the first sandblasting pipe 12 upward.

[0043] like Figure 6 , Figure 8 , Figure 11 and Figure 13 As shown, in a preferred embodiment, based on the above method, the docking assembly 14 further includes a first connecting plate 1401 fixedly connected to the second sandblasting pipe 13. A first spring 1402 is installed inside the first connecting plate 1401, and a locking block 1403 is installed on the first spring 1402. A connecting plate 1404 is fixedly disposed on the side of the locking block 1403. A second connecting plate 1405 is fixedly connected to the first sandblasting pipe 12. A docking hole 1406 is opened on the second connecting plate 1405. When it is necessary to switch to sandblasting treatment of the bearing surface, by pulling the connecting plate 1404, the locking block 1403 is disengaged from the docking hole 1406 in the second connecting plate 1405, and the second sandblasting pipe 13 is rotated to... Figure 8The abrasive in the first sandblasting pipe 12 is no longer guided through the second sandblasting pipe 13, and is vertically sprayed to the surface of the bearing race, thereby achieving the switching function of sandblasting treatment of the inner wall and surface of the bearing race.

[0044] As shown in Figure 13 , as a preferred embodiment, on the basis of the above mode, further, the first sandblasting pipe 12 is rotatably installed with a rotating plate 1409, the second sandblasting pipe 13 is fixedly provided with a first magnetic block 1407, and the first sandblasting pipe 12 is fixedly provided with a second magnetic block 1408, when the second sandblasting pipe 13 is rotated to the state shown in Figure 8 , the first magnetic block 1407 adsorbs the second magnetic block 1408, thereby achieving the folding function of the second sandblasting pipe 13.

[0045] As shown in Figure 5 , Figure 6 , Figures 8-12 and Figure 14 , as a preferred embodiment, on the basis of the above mode, further, the switching assembly 17 includes a mounting plate 1701 fixedly connected to the electric push rod 11, the mounting plate 1701 is installed with a connecting ring 1702, the connecting ring 1702 is slidably installed with a first sliding plate 1703, the first sliding plate 1703 is fixedly provided with a top rod 1704, the top of the top rod 1704 is installed with a top block 1705, the side of the top block 1705 is provided with a pressing block 1706, the pressing block 1706 is installed with a second sliding plate 1708, the second sliding plate 1708 is provided with a guide rod 1709, the guide rod 1709 is fixedly connected to the recovery pipe 18, the second sliding plate 1708 is rotatably connected to the first key sleeve 25, Figure 11 and Figure 12 , as can be seen, when placing the bearing workpiece, the electric push rod 11 needs to be shortened, when the electric push rod 11 is shortened, the first sliding plate 1703 is driven to move upward by the mounting plate 1701 and the connecting ring 1702, the first sliding plate 1703 pushes the pressing block 1706 through the top block 1705, the pressing block 1706 moves under the guidance of the guide rod 1709, and the second spring 1707 is stretched, so as to adjust the position of the abrasive recovery of the subsequent adjusting device.

[0046] As shown in Figure 12 , as a preferred embodiment, on the basis of the above mode, further, the top block 1705 and the pressing block 1706 are provided with inclined surfaces, the pressing blocks 1706 are symmetrically distributed on both sides of the second sliding plate 1708, so as to ensure that the top block 1705 can push the pressing block 1706 and the second sliding plate 1708 to move laterally when moving upward, and the symmetrically distributed pressing blocks 1706 enable the second sliding plate 1708 to move smoothly.

[0047] AsFigure 9 and Figure 12 As shown in Figs. 1-3, as a preferred embodiment, on the basis of the above-mentioned mode, further, there is a gap between the first bevel gear 20 and the second bevel gear 23, the second bevel gear 23 can change the engagement state of the first bevel gear 20 when moving, so as to switch between the recovery abrasive and the adjustment of the recovery position, the central axis of the second bevel gear 23, the first key sleeve 25 and the key rod 26 are collinear, the recovery pipe 18 is provided with a connecting shell 24, the first bevel gear 20 and the second bevel gear 23 are located in the connecting shell 24, and the connecting shell 24 is used for protecting the first bevel gear 20 and the second bevel gear 23, avoiding the abrasive entering the tooth groove of the first bevel gear 20 and the second bevel gear 23.

[0048] Embodiment 3: The schemes in Embodiment 1 and Embodiment 2 are further introduced in combination with specific working modes, which are described in detail as follows:

[0049] Specifically, the workpiece surface sand blasting device for processing insulating bearings is used as follows: Figures 1-8 、 Figure 11 and Figure 13 As shown in Figs. 1-3, as a preferred embodiment, on the basis of the above-mentioned mode, further, there is a gap between the first bevel gear 20 and the second bevel gear 23, the second bevel gear 23 can change the engagement state of the first bevel gear 20 when moving, so as to switch between the recovery abrasive and the adjustment of the recovery position, the central axis of the second bevel gear 23, the first key sleeve 25 and the key rod 26 are collinear, the recovery pipe 18 is provided with a connecting shell 24, the first bevel gear 20 and the second bevel gear 23 are located in the connecting shell 24, and the connecting shell 24 is used for protecting the first bevel gear 20 and the second bevel gear 23, avoiding the abrasive entering the tooth groove of the first bevel gear 20 and the second bevel gear 23. Figure 3 and Figure 4As can be seen, the height of the annular surface of the annular body 1601 continuously changes along the circumferential direction, and the flow guide slope 1603 and the supporting block 15 of the circular truncated cone structure are used to make the abrasive gather in the lowest collection area 1602 of the annular body 1601, and since the collection area 1602 and the position of the recovery pipe 18 correspond to each other, the abrasive can be recycled in the same way as the above-mentioned abrasive feeding steps. When sandblasting the inner wall of the bearing race, the first motor 702 drives the cylindrical gear 704 to rotate, which drives the gear ring 705 and the second connecting pipe 9 to rotate, and then drives the first sandblasting pipe 12 and the second sandblasting pipe 13 to perform circumferential sandblasting treatment along the inner wall of the bearing race. Since the rotating ring 8 and the second connecting pipe 9 are rotationally connected, and the first sliding plate 1703 and the connecting ring 1702 are rotationally connected, during the circumferential sandblasting treatment, the second connecting pipe 9 rotates below the rotating ring 8, the connecting ring 1702 rotates on the first sliding plate 1703, and the recovery pipe 18 remains stationary. The device can rotate the second sandblasting pipe 13 from the state in Figure 13 to the state in Figure 8 by pulling the connecting plate 1404 to make the clamping block 1403 disengage from the docking hole 1406 in the second connecting plate 1405, rotating the second sandblasting pipe 13 to the state in Figure 8 , and the first magnetic block 1407 attracting the second magnetic block 1408, so that the abrasive in the first sandblasting pipe 12 is no longer guided through the second sandblasting pipe 13, and the abrasive is vertically sprayed to the surface of the bearing race, so that the device can be switched between sandblasting the inner wall of the bearing race and surface sandblasting. The abrasive of the device needs to be selected from non-magnetic abrasives such as tungsten carbide, silicon carbide, or zirconia ceramic, to avoid the influence of the magnetic blocks on the abrasive conveying.

[0050] As shown in Figure 2 and Figure 6 , the fixed frame 703 and the connecting shell 24 ensure that the cylindrical gear 704, the gear ring 705, the first bevel gear 20, and the second bevel gear 23 are not affected by the abrasive, and the abrasive is prevented from entering the gear slot to affect normal transmission. The first extension pipe 28 and the second extension pipe 29 are used to protect the screw 27 from the abrasive entering the thread groove. The glove interface 2 facilitates subsequent movement of the bearing workpiece to the sandblasting area while maintaining a closed state, and the baffle 3 can block the cover plate 4 to keep the device closed during operation. As shown in Figure 6 , Figure 7 , Figures 9-12 and Figure 14As shown, when the electric push rod 11 is shortened to place the bearing workpiece, the first bevel gear 20 and the second bevel gear 23 are engaged through the switching assembly 17, the electric push rod 11 is shortened to drive the mounting plate 1701, the adapter ring 1702 and the first sliding plate 1703 to move upward, the first sliding plate 1703 pushes the pressing block 1706 through the top block 1705, the pressing block 1706 and the second sliding plate 1708 move to the direction of the first bevel gear 20 under the guidance of the guide rod 1709, the second spring 1707 is stretched, until the first bevel gear 20 is engaged with the second bevel gear 23, the first bevel gear 20 drives the second bevel gear 23 and the first key sleeve 25 to rotate, the first key sleeve 25 drives the second key sleeve 30 and the screw rod 27 to rotate through the key rod 26. Since the screw rod 27 and the first extension pipe 28 are rotationally connected, the screw rod 27 is threadedly connected with the second extension pipe 29, therefore when the screw rod 27 rotates, under the guidance of the first extension pipe 28 and the second extension pipe 29, the recovery pipe 18 slides on the third connecting pipe 10, the rotating direction of the first bevel gear 20 driven by the second motor 19 is changed, the rotating direction of the screw rod 27 is changed, and then the position of the recovery pipe 18 in the abrasive collection area 1602 is changed, when the helical blade 22 is rotated by the second motor 19, not only the function of conveying abrasive can be realized, but also the position of the abrasive recovery can be adjusted.

[0051] The above is only the preferred embodiment of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A workpiece surface sand blasting device for insulating bearing processing, comprising a shell (1), characterized in that, The shell (1) is provided with a baffle (3) and a cover plate (4), the top of the shell (1) is provided with an air pump (5), the lower portion of the air pump (5) is connected with a first connecting pipe (6), the lower portion of the first connecting pipe (6) is provided with a driving assembly (7), the lower portion of the driving assembly (7) is provided with a rotating ring (8) and a second connecting pipe (9), the side of the second connecting pipe (9) is provided with a third connecting pipe (10) and an electric push rod (11), the lower portion of the electric push rod (11) is provided with a first sand blasting pipe (12), the first sand blasting pipe (12) is hingedly connected with a second sand blasting pipe (13), the first sand blasting pipe (12) and the second sand blasting pipe (13) are provided with a butt joint assembly (14), the upper portion of the third connecting pipe (10) is fixedly connected with a first extension pipe (28), the outer side of the first extension pipe (28) is slidingly provided with a second extension pipe (29), the second extension pipe (29) is provided with a recovery pipe (18), the recovery pipe (18) is provided with a second motor (19), the output shaft of the second motor (19) is fixedly connected with a first bevel gear (20) and a connecting rod (21), the connecting rod (21) is provided with a helical blade (22), the recovery pipe (18) is provided with a switching assembly (17), the first extension pipe (28) is rotatably provided with a screw rod (27), the screw rod (27) is fixedly connected with a key rod (26), the outer side of the key rod (26) is connected with a first key sleeve (25) and a second key sleeve (30), the first key sleeve (25) is provided with a second bevel gear (23), the screw rod (27) and the second extension pipe (29) are threadedly connected.

2. The workpiece surface sand blasting and grinding device for insulating bearing machining according to claim 1, characterized in that, The shell (1) is provided with a glove interface (2), the baffle (3) and the shell (1) are slidingly connected, and the cover plate (4) and the shell (1) are rotatably connected.

3. The workpiece surface sand blasting and grinding device for insulating bearing machining of claim 1, wherein, The middle of the shell (1) is provided with a supporting block (15), the supporting block (15) and the shell (1) are provided with a guide ring (16), the guide ring (16) comprises an annular body (1601) fixedly connected between the supporting block (15) and the shell (1), the height of the annular surface of the annular body (1601) continuously changes along the circumferential direction, forming at least one lowest collection area (1602) and a gradually symmetrical and increasing flow guide slope (1603) from the collection area (1602) to the two side walls.

4. The workpiece surface sand blasting and grinding device for insulating bearing machining of claim 1, wherein, The driving assembly (7) comprises a fixed sleeve (701) fixedly installed at the bottom of the first connecting pipe (6), the bottom of the fixed sleeve (701) is fixedly connected with a fixed frame (703), the fixed frame (703) is provided with a first motor (702), the output shaft of the first motor (702) is fixedly connected with a cylindrical gear (704), the outer side of the cylindrical gear (704) is meshingly connected with a gear ring (705), the gear ring (705) is provided with a first rotary drum (706), and the first rotary drum (706) is fixedly connected with the second connecting pipe (9).

5. The workpiece surface sand blasting and grinding device for insulating bearing machining of claim 1, wherein, An opening (31) is formed in the second connecting pipe (9), the third connecting pipe (10) is in communication with the second connecting pipe (9) through a swivel (8) and the opening (31), and the first sand blasting pipe (12) is in sliding connection with the second connecting pipe (9).

6. A workpiece surface sand blasting and grinding device for insulating bearing processing according to claim 1, characterized in that, The docking assembly (14) comprises a first connecting plate (1401) fixedly connected to the second sand blasting pipe (13), a first spring (1402) is mounted in the first connecting plate (1401), a clamping block (1403) is mounted on the first spring (1402), a side surface of the clamping block (1403) is fixedly provided with a linking plate (1404), the first sand blasting pipe (12) is fixedly connected with a second connecting plate (1405), and a docking hole (1406) is formed in the second connecting plate (1405).

7. The workpiece surface sand blasting and grinding device for insulating bearing machining according to claim 6, characterized in that, A rotating plate (1409) is rotatably mounted on the first sand blasting pipe (12), a first magnetic block (1407) is fixedly arranged on the second sand blasting pipe (13), and a second magnetic block (1408) is fixedly arranged on the first sand blasting pipe (12).

8. The workpiece surface sand blasting and grinding device for insulating bearing machining of claim 1, wherein, The switching assembly (17) comprises a mounting plate (1701) fixedly connected to the electric push rod (11), a linking ring (1702) is mounted on the mounting plate (1701), a first sliding plate (1703) is slidably mounted in the linking ring (1702), a top rod (1704) is fixedly arranged on the first sliding plate (1703), a top block (1705) is mounted on the top of the top rod (1704), a pressing block (1706) is arranged on a side surface of the top block (1705), a second sliding plate (1708) is mounted on the pressing block (1706), a guide rod (1709) is penetratingly arranged in the second sliding plate (1708), the guide rod (1709) is fixedly connected with the recovery pipe (18), a second spring (1707) is mounted between the second sliding plate (1708) and the recovery pipe (18), and the second sliding plate (1708) is rotatably connected with the first key sleeve (25).

9. The workpiece surface sand blasting and grinding device for insulating bearing machining according to claim 8, characterized in that, The top block (1705) and the pressing block (1706) are both provided with inclined surfaces, and the pressing blocks (1706) are symmetrically arranged on two sides of the second sliding plate (1708).

10. The workpiece surface sand blasting and grinding device for insulating bearing machining according to claim 1, characterized in that, The first bevel gear (20) and the second bevel gear (23) are provided with a gap, the central axes of the second bevel gear (23), the first key sleeve (25) and the key rod (26) are collinear, a connecting shell (24) is mounted on the recovery pipe (18), and the first bevel gear (20) and the second bevel gear (23) are located in the connecting shell (24).

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