CN110666702A - Shot peening treatment device for metal surface - Google Patents
Shot peening treatment device for metal surface Download PDFInfo
- Publication number
- CN110666702A CN110666702A CN201911110605.5A CN201911110605A CN110666702A CN 110666702 A CN110666702 A CN 110666702A CN 201911110605 A CN201911110605 A CN 201911110605A CN 110666702 A CN110666702 A CN 110666702A
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- guide plate
- plate
- shot blasting
- air
- peening
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- 238000005480 shot peening Methods 0.000 title claims abstract description 36
- 239000002184 metal Substances 0.000 title claims abstract description 17
- 238000005422 blasting Methods 0.000 claims abstract description 119
- 239000000463 material Substances 0.000 claims abstract description 40
- 238000007664 blowing Methods 0.000 claims description 7
- 238000009434 installation Methods 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 14
- 238000009825 accumulation Methods 0.000 abstract description 7
- 238000000034 method Methods 0.000 description 28
- 230000008569 process Effects 0.000 description 23
- 230000008859 change Effects 0.000 description 7
- 230000035508 accumulation Effects 0.000 description 6
- 230000000903 blocking effect Effects 0.000 description 5
- 230000007797 corrosion Effects 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 238000005728 strengthening Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000008033 biological extinction Effects 0.000 description 3
- 238000005266 casting Methods 0.000 description 3
- 230000008030 elimination Effects 0.000 description 3
- 238000003379 elimination reaction Methods 0.000 description 3
- 238000005242 forging Methods 0.000 description 3
- 230000003116 impacting effect Effects 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000009931 harmful effect Effects 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 210000003437 trachea Anatomy 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009414 blockwork Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C1/00—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods
- B24C1/10—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods for compacting surfaces, e.g. shot-peening
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C7/00—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts
- B24C7/0046—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts the abrasive material being fed in a gaseous carrier
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C9/00—Appurtenances of abrasive blasting machines or devices, e.g. working chambers, arrangements for handling used abrasive material
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The invention belongs to the technical field of shot peening, and particularly relates to a metal surface shot peening treatment device which comprises a guide plate, wherein the guide plate is used for guiding shot peening, the guide plate is of an arc-shaped cavity structure, air outlets are formed in the surface of the top end of the guide plate at equal intervals along the length direction of the guide plate, an inner cavity of the guide plate is connected with an air compressor through a connecting pipe, the air compressor is used for conveying air into the inner cavity of the guide plate, and four first plates are fixed on the side wall of the guide plate; the moving direction of the shot blasting is changed by the high-speed gas sprayed from the guide plate, so that the shot blasting vertically impacts the inner wall of the circular groove, and the shot blasting hardening effect is enhanced; simultaneously through the setting of dialling the material gear, take out the inside accumulational peening of circular slot, avoided the accumulation of peening to influence the normal clear of peening.
Description
Technical Field
The invention belongs to the technical field of shot peening, and particularly relates to a shot peening treatment device for a metal surface.
Background
Shot blasting is a surface strengthening process widely adopted in factories, has simple equipment and low cost, is not limited by the shape and the position of a workpiece, is convenient to operate, and has poor working environment. Shot peening is widely used to improve mechanical strength, wear resistance, fatigue resistance, corrosion resistance, and the like of parts. It can also be used for surface matting, descaling and eliminating residual stress of cast, forged and welded parts.
In the shot blasting of the holed part, attention should be paid to the simultaneous shot blasting of the inner wall of the hole. Shallow holes with diameter larger than 20mm are easy to realize the requirements in the process. For holes with a diameter less than 20mm, the above requirements are difficult to achieve by adopting a common shot blasting process.
When the part with the deeper circular groove is shot-blasted, the inner wall of the circular groove is difficult to obtain enough shot-blasting strength and uniform coverage rate, so that the mechanical strength and the wear resistance of the part cannot reach the standard, and when high-pressure gas is sprayed out from the air outlet, the shot-blasting can be impacted, so that the movement direction of the shot-blasting is changed, but the shot-blasting passing the edge position of the air outlet is difficult to adjust because the position of the shot-blasting is far away from the sprayed high-pressure gas, so that the impact effect of the whole shot-blasting on the inner wall of the circular groove is influenced; accordingly, the invention provides a metal surface shot peening device.
Disclosure of Invention
In order to make up for the defects of the prior art, the invention provides the metal surface shot peening device, the moving direction of shot peening is changed by high-speed gas sprayed from the guide plate, so that the shot peening vertically impacts the inner wall of the circular groove, and the shot peening effect is enhanced.
The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a shot peening treatment device for a metal surface, which comprises a guide plate, wherein the guide plate is used for guiding shot peening, the guide plate is of an arc-shaped cavity structure, air outlets are formed in the surface of the top end of the guide plate at equal intervals along the length direction of the guide plate, an inner cavity of the guide plate is connected with an air compressor through a connecting pipe, the air compressor is used for conveying air into the inner cavity of the guide plate, a first plate is fixed on the side wall of the guide plate, rectangular grooves are formed in the top ends of the first plates, return springs are fixed at the bottoms of the rectangular grooves, a second plate is fixed at the top ends of the return springs, rollers are rotatably connected to the bottom ends of the first plates and the top ends of the second plates, and connecting rods are respectively fixed on the two first plates at one end of the guide plate;
two ends of the air outlet are symmetrically provided with two swing units; the swing unit comprises an arc spring and a swing plate; the swing plates are contacted and attached to the surfaces of the guide plates and fixedly connected to one ends of the arc springs; the other ends of the arc springs are fixedly connected to the surface of the guide plate; when the air after the air compressor compression is sprayed out from the air outlet, the air pushes away the attached swing plate by force, so that the swing plate is separated from the surface of the guide plate, and shot blasting at the edge of the air outlet is bounced by the flow.
When in work, the shot blasting treatment is a surface strengthening process widely adopted by factories, the equipment is simple, the cost is low, the process is not limited by the shape and the position of a workpiece, the operation is convenient, but the working environment is poor; the shot blasting is widely used for improving the mechanical strength, the wear resistance, the fatigue resistance and the corrosion resistance of parts, and can also be used for surface extinction, descaling and residual stress elimination of castings, forgings and weldments; the shot blasting of the components with holes is to be noticed that the inner wall of the hole is also subjected to shot blasting treatment, and the requirements are easy to realize in the process of shallow holes with the diameter larger than 20 mm; for holes with the diameter smaller than 20mm, the common shot blasting process is adopted, so that the requirements are difficult to realize; when the part with the deeper circular groove is shot-blasted, the inner wall of the circular groove is difficult to obtain enough shot-blasting strength and uniform coverage rate, so that the mechanical strength and the wear resistance of the part can not reach the standard; through the arrangement of the guide plate, when the shot blasting machine sprays high-speed shot blasting, the shot blasting moves on the surface of the guide plate, and in the moving process, the air compressor injects high-pressure gas into the guide plate, so that the high-pressure gas overflows from an air outlet on the guide plate, and the shot blasting is guided; because the shot blasting is very small, the moving direction is easy to change under the guidance of high-pressure gas; meanwhile, high-speed gas blown out of the air outlet can be decomposed into wind perpendicular to the moving direction of shot blasting and wind parallel to the moving direction of shot blasting, and the wind parallel to the moving direction of shot blasting plays a role in accelerating the shot blasting; the high-speed gas vertical to the moving direction of the shot blasting plays a role in changing the moving direction of the shot blasting, so that the moving direction of the shot blasting is changed from being parallel to the inner wall of the circular groove to being vertical to the inner wall of the circular groove, the shot blasting impacts the inner wall of the circular groove at a high speed, and the mechanical strength and the wear resistance of the inner wall of the circular groove are improved; after impacting the inner wall of the circular groove, the shot blasting is carried out of the circular groove from the other side surface of the guide plate along with the gas, so that the blocking of the shot blasting is avoided; when the guide device works in circular grooves with different sizes, the second plate is popped up under the action of the return spring, so that the rollers on the first plate and the second plate are in contact with the inside of the circular grooves, thereby playing a role in positioning, and the change of the position of the guide device can be completed by holding the connecting rod to rotate the guide plate;
meanwhile, when the high-pressure gas is sprayed out of the air outlet, the shot blasting can be impacted, so that the moving direction of the shot blasting is changed, but the moving direction of the shot blasting passing through the edge position of the air outlet is not easily adjusted due to the fact that the position of the shot blasting is far away from the sprayed high-pressure gas, so that the impact effect of the whole shot blasting on the inner wall of the circular groove is influenced; according to the invention, the edge of the air outlet is provided with the swing unit, when the air compressed by the air compressor is sprayed out from the air outlet, the air can forcibly push away the attached swing plate and compress the arc-shaped spring connected with one side of the swing plate, so that the swing plate is separated from the surface of the guide plate, the shot blasting falling on the edge of the air outlet is bounced, and the moving direction of the shot blasting in the range is changed; when the high-pressure gas disappears, the swinging plate can quickly rebound under the reaction of the arc-shaped spring, and is attached to the guide plate again to wait for the next work; utilize the swing unit to realize carrying out the synchronization regulation to the peening of air outlet edge to adjust the moving direction of all peening, guarantee holistic peening to the striking effect of circular slot inner wall, improved the treatment quality of circular slot.
Preferably, a cylinder is fixed between the two first plates far away from the connecting rod, the surface of the cylinder is rotatably connected with a material shifting gear, two air blowing ports are formed in the bottom end of the guide plate and used for conveying gas to the material shifting gear to enable the material shifting gear to rotate, and when the shot blasting machine works, due to the fact that the circular groove is provided with only one outlet, blocking may occur after shot blasting enters the circular groove, and therefore shot blasting hardening failure or low efficiency is achieved; through the setting of dialling the material gear, blow off and blow to dialling the material gear back on from the blast orifice department at high-pressure gas, drive and dial the material gear and rotate for dial the material gear and take out remaining peening in with the circular slot, avoided the peening failure that a large amount of accumulations of peening result in, guaranteed that the deflector is unrestricted in the free movement of circular slot, thereby make peening can continuously go on.
Preferably, the guide plate is communicated with the inner cavity of the cylinder through an air pipe, the side wall of the cylinder is provided with a first rectangular groove, an included angle between the opening direction of the first rectangular groove and the first plate is 45 degrees, the side wall of the material shifting gear is provided with more than two second rectangular grooves at equal intervals along the circumferential direction of the side wall of the material shifting gear, so that gas in the cylinder is sprayed out of the cylinder after passing through the first rectangular groove and the second rectangular grooves, and during work, the material shifting gear takes shot blasting accumulated in the circular grooves out, so that the accumulation of shot blasting is avoided, but the shot blasting can only be dug out from the depth of the circular grooves by the material shifting gear, the working range of the material shifting gear is limited, and the accumulation condition caused by insufficient power can exist in the process of outward movement; through the setting of a rectangular channel and No. two rectangular channels, high-pressure gas among the air compressor enters into the drum through the trachea in, dials material gear revolve's in-process for a rectangular channel and No. two rectangular channels intermittent type intercommunication, thereby make the gaseous intermittent type blowout in the drum, blow the peening of outside removal, make the peening remove outside the circular slot with higher speed, avoided the harmful effects that pile up of peening caused, thereby improved peening efficiency.
Preferably, the material shifting gear comprises gear teeth and an installation part, one side of the gear teeth, which is far away from the installation part, is provided with a containing groove, a limiting spring is fixed in the containing groove, and a sliding block is fixed at the free end of the limiting spring; through the setting of slider, when the slider struck the peening, the slider got into and accomodates the groove, has avoided the hard collision of the teeth of a cogwheel with the peening to the life of the teeth of a cogwheel has been guaranteed.
Preferably, the sliding block is of a semicircular structure, the side wall of the sliding block is provided with an air hole, the air hole extends into the cylinder, when the sliding block works, the sliding block is of the semicircular structure, and shot blasting is extruded away when the sliding block is in contact with shot blasting in the moving process of the sliding block, so that the hard contact probability of the sliding block and the shot blasting is reduced, and the normal work of the sliding block is ensured; the lateral wall of slider is equipped with the gas pocket for gas in the drum is spout from the lateral wall of slider, blows the peening of gas pocket mouth, thereby clears away the peening on the slider movement path, has reduced the interference that the peening removed to the slider, thereby has guaranteed the normal work of dialling the material gear.
Preferably, the swinging plate is formed by hinging a group of sub-plates, and the hinging part of the adjacent sub-plates is far away from the surface of the guide plate. At the wobbling in-process of swing board, swing board can directly strike the peening, the in-process of collision is forced between the two, can lead to swing board to produce the damage under the effect of impact along with the increase of swing board operating time, and then influence the life of swing board, and the swing board that forms by a set of board is articulated can be when striking with the peening, take place to shake and realize the power of unloading, thereby reduce the damage of impact to self, improve the life of swing board, and then reduced the change frequency of swing board, the holistic work efficiency has been improved.
The invention has the following beneficial effects:
1. according to the metal surface shot peening treatment device, the moving direction of shot peening is changed through high-speed gas jetted from the guide plate, so that the shot peening impacts the inner wall of the circular groove in a nearly vertical state, and the shot peening effect is enhanced.
2. According to the shot peening treatment device for the metal surface, shot peening entering the circular groove is pushed out of the circular groove through the material pushing gear, so that an effective working space inside the circular groove is ensured, shot peening can be normally carried out, and the situation that shot peening efficiency is reduced due to mutual interference of shot peening is avoided.
2. According to the shot peening device for the metal surface, shot peening at the edge of the air outlet is synchronously adjusted by utilizing the swing unit, so that the moving directions of all shot peening are adjusted, the impact effect of the whole shot peening on the inner wall of the circular groove is ensured, and the processing quality of the circular groove is improved; meanwhile, the swing plate is formed by hinging a component plate, and can shake to realize force unloading when being impacted by shot blasting, so that the damage of impact force to the swing plate is reduced, the service life of the swing plate is prolonged, the replacement frequency of the swing plate is reduced, and the overall working efficiency is improved.
Drawings
The invention will be further explained with reference to the drawings.
FIG. 1 is a three-dimensional view of the present invention;
FIG. 2 is a top view of the present invention;
FIG. 3 is a cross-sectional view taken at A-A of FIG. 2;
FIG. 4 is an enlarged view of a portion of FIG. 3 at B;
FIG. 5 is a schematic diagram of the operation of the present invention;
FIG. 6 is an enlarged view of a portion of FIG. 3 at C;
in the figure: the device comprises a guide plate 1, an air outlet 2, a first plate 3, a second plate 4, a roller 5, a connecting rod 6, a cylinder 7, a material stirring gear 8, an air blowing opening 9, a first rectangular groove 10, a second rectangular groove 11, gear teeth 12, an installation part 13, a storage groove 14, a limiting spring 15, a sliding block 16, an air hole 17, a swinging unit 18, an arc-shaped spring 19, a swinging plate 20 and a sub-plate 21.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1 to 6, the shot peening apparatus for metal surface according to the present invention includes a guide plate 1, the guide plate 1 is used for guiding shot blasting, the guide plate 1 is of an arc-shaped cavity structure, air outlets 2 are arranged on the surface of the top end of the guide plate 1 at equal intervals along the length direction of the guide plate, the inner cavity of the guide plate 1 is connected with an air compressor through a connecting pipe, the air compressor is used for conveying air into the inner cavity of the guide plate 1, the side wall of the guide plate 1 is fixed with a first plate 3, the top ends of the first plates 3 are provided with rectangular grooves, the bottoms of the rectangular grooves are fixed with return springs, a second plate 4 is fixed at the top end of the return spring, the bottom end of the first plate 3 and the top end of the second plate 4 are both rotatably connected with rollers 5, and two first plates 3 at one end of the guide plate 1 are respectively fixed with a connecting rod 6;
two swing units 18 are symmetrically arranged at two ends of the air outlet 2; the swing unit 18 includes an arc spring 19 and a swing plate 20; the oscillating plate 20 is contacted and attached with the surface of the guide plate 1, and the oscillating plates 20 are fixedly connected with one end of the arc-shaped spring 19; the other ends of the arc springs 19 are fixedly connected to the surface of the guide plate 1; when the air compressed by the air compressor is sprayed out from the air outlet 2, the attached swing plate 20 is forcibly pushed away, so that the swing plate 20 is separated from the surface of the guide plate 1, and shot blasting at the edge of the air outlet 2 is bounced.
When in work, the shot blasting treatment is a surface strengthening process widely adopted by factories, the equipment is simple, the cost is low, the process is not limited by the shape and the position of a workpiece, the operation is convenient, but the working environment is poor; the shot blasting is widely used for improving the mechanical strength, the wear resistance, the fatigue resistance and the corrosion resistance of parts, and can also be used for surface extinction, descaling and residual stress elimination of castings, forgings and weldments; the shot blasting of the components with holes is to be noticed that the inner wall of the hole is also subjected to shot blasting treatment, and the requirements are easy to realize in the process of shallow holes with the diameter larger than 20 mm; for holes with the diameter smaller than 20mm, the common shot blasting process is adopted, so that the requirements are difficult to realize; when the part with the deeper circular groove is shot-blasted, the inner wall of the circular groove is difficult to obtain enough shot-blasting strength and uniform coverage rate, so that the mechanical strength and the wear resistance of the part can not reach the standard; through the arrangement of the guide plate 1, when the shot blasting machine sprays high-speed shot blasting, the shot blasting moves on the surface of the guide plate 1, and in the moving process, the air compressor injects high-pressure gas into the guide plate 1, so that the high-pressure gas overflows from the air outlet 2 on the guide plate 1, and the shot blasting is guided; because the shot blasting is very small, the moving direction is easy to change under the guidance of high-pressure gas; meanwhile, the high-speed gas blown out from the air outlet 2 can be decomposed into wind perpendicular to the moving direction of the shot blasting and wind parallel to the moving direction of the shot blasting, and the wind parallel to the moving direction of the shot blasting plays a role in accelerating the shot blasting; the high-speed gas vertical to the moving direction of the shot blasting plays a role in changing the moving direction of the shot blasting, so that the moving direction of the shot blasting is changed from being parallel to the inner wall of the circular groove to being vertical to the inner wall of the circular groove, the shot blasting impacts the inner wall of the circular groove at a high speed, and the mechanical strength and the wear resistance of the inner wall of the circular groove are improved; after impacting the inner wall of the circular groove, the shot blasting is carried out of the circular groove from the other side surface of the guide plate 1 along with the gas, so that the blocking of the shot blasting is avoided; when the guide device works in circular grooves with different sizes, the second plate 4 is popped up under the action of the return spring, so that the rollers 5 on the first plate 3 and the second plate 4 are in contact with the inside of the circular grooves, the positioning effect is achieved, and the change of the position of the guide device can be completed by holding the connecting rod 6 by hand to rotate the guide plate 1;
meanwhile, when the high-pressure gas is sprayed out of the air outlet 2, the shot blasting is impacted, so that the moving direction of the shot blasting is changed, but the moving direction of the shot blasting passing through the edge position of the air outlet 2 is not easily adjusted due to the fact that the position of the shot blasting is far away from the sprayed high-pressure gas, and the impact effect of the whole shot blasting on the inner wall of the circular groove is influenced; accordingly, the edge of the air outlet 2 is provided with the swing unit 18, when the air compressed by the air compressor is sprayed out of the air outlet 2, the air pushes away the attached swing plate 20 forcibly, and compresses the arc-shaped spring 19 connected with one side, so that the swing plate 20 is separated from the surface of the guide plate 1, the shot blasting falling on the edge of the air outlet 2 is bounced, and the moving direction of the shot blasting in the range is changed; when the high-pressure gas disappears, the swinging plate 20 can quickly rebound under the reaction of the arc-shaped spring 19, and is attached to the guide plate 1 again to wait for the next work; utilize swing unit 18 to realize carrying out the synchronization regulation to the peening of air outlet 2 edge to adjust the moving direction of all peening, guarantee holistic peening to the striking effect of circular slot inner wall, improved the treatment quality of circular slot.
As a specific embodiment of the invention, a cylinder 7 is fixed between two plates 3 far away from a connecting rod 6, the surface of the cylinder 7 is rotatably connected with a material shifting gear 8, two air blowing ports 9 are arranged at the bottom end of the guide plate 1, the air blowing ports 9 are used for conveying air to the material shifting gear 8 to enable the material shifting gear 8 to rotate, and during operation, as only one outlet is arranged in a circular groove, a blocking condition may exist after shot blasting enters the circular groove, so that shot blasting hardening fails or the efficiency is not high; through setting up of dialling material gear 8, blow out and blow to dialling material gear 8 back on high-pressure gas blows from mouth 9 of blowing for dial material gear 8 and take out remaining peening in the circular slot, avoided the peening failure that a large amount of accumulations of peening result in, guaranteed that deflector 1 is unrestricted in the free movement of circular slot, thereby make shot peening can continuously go on.
As a specific embodiment of the invention, the guide plate 1 is communicated with an inner cavity of the cylinder 7 through an air pipe, the side wall of the cylinder 7 is provided with a first rectangular groove 10, an included angle between the opening direction of the first rectangular groove 10 and the first plate 3 is 45 degrees, the side wall of the material shifting gear 8 is provided with more than two second rectangular grooves 11 at equal intervals along the circumferential direction, so that gas in the cylinder 7 is ejected out of the cylinder 7 after passing through the first rectangular groove 10 and the second rectangular grooves 11, during operation, the material shifting gear 8 takes out shot blasting accumulated in the circular grooves, thereby avoiding the accumulation of shot blasting, but the material shifting gear 8 only can dig out shot blasting from the depth of the circular grooves, the working range of the material shifting gear 8 is limited, and the accumulation condition caused by insufficient power may occur in the process of moving the shot blasting outwards; through the setting of a rectangular channel 10 and No. two rectangular channels 11, high-pressure gas among the air compressor enters into drum 7 through the trachea in, dial material gear 8 pivoted in-process for a rectangular channel 10 and No. two rectangular channels 11 intermittent type intercommunication, thereby make the gaseous intermittent type blowout in the drum 7, blow the peening of outside removal, make the peening with higher speed to the outer removal of circular slot, avoided the harmful effects that the piling up of peening caused, thereby improved peening efficiency.
As a specific embodiment of the invention, the material shifting gear 8 comprises a gear tooth 12 and a mounting part 13, a receiving groove 14 is arranged on one side of the gear tooth 12 away from the mounting part 13, a limiting spring 15 is fixed in the receiving groove 14, and a slider 16 is fixed at the free end of the limiting spring 15, so that when the material shifting gear 8 shifts shot shots outwards in operation, the head of the gear tooth 12 of the material shifting gear 8 may collide with the shot shots directly, thereby accelerating the damage of the material shifting gear 8 and reducing the service life of the guiding device; through the arrangement of the sliding block 16, when the sliding block 16 impacts shot blasting, the sliding block 16 enters the containing groove 14, so that the hard collision between the gear teeth 12 and the shot blasting is avoided, and the service life of the gear teeth 12 is ensured.
As a specific embodiment of the present invention, the slider 16 is a semicircular structure, the side wall of the slider 16 is provided with an air hole 17, the air hole 17 extends into the cylinder 7, when in operation, the slider 16 is a semicircular structure, and when the slider 16 contacts shot blasting in the moving process of the slider 16, the shot blasting is squeezed away, so that the hard contact probability between the slider 16 and the shot blasting is reduced, and the normal operation of the slider 16 is ensured; the side wall of the sliding block 16 is provided with the air hole 17, so that the air in the cylinder 7 is sprayed out from the side wall of the sliding block 16 to blow the shot blasting at the opening of the air hole 17, thereby removing the shot blasting on the moving path of the sliding block 16, reducing the interference of the shot blasting on the movement of the sliding block 16 and ensuring the normal work of the material stirring gear 8.
In an embodiment of the present invention, the swing plate 20 is formed by hinging a set of sub-plates 21, and the hinging point of the adjacent sub-plates 21 is far away from the surface of the guide plate 1. In the process of swing plate 20, swing plate 20 can directly strike the peening, the in-process of collision is forced between the two, can lead to swing plate 20 to produce the damage under the effect of impact along with swing plate 20 operating time's increase, and then influence the life of swing plate 20, and swing plate 20 that forms by a set of board 21 is articulated can be when striking with the peening, take place to shake and realize the power of unloading, thereby reduce the damage of impact to self, improve swing plate 20's life, and then reduced swing plate 20's change frequency, whole work efficiency has been improved.
When in work, the shot blasting treatment is a surface strengthening process widely adopted by factories, the equipment is simple, the cost is low, the process is not limited by the shape and the position of a workpiece, the operation is convenient, but the working environment is poor; the shot blasting is widely used for improving the mechanical strength, the wear resistance, the fatigue resistance and the corrosion resistance of parts, and can also be used for surface extinction, descaling and residual stress elimination of castings, forgings and weldments; the shot blasting of the components with holes is to be noticed that the inner wall of the hole is also subjected to shot blasting treatment, and the requirements are easy to realize in the process of shallow holes with the diameter larger than 20 mm; for holes with the diameter smaller than 20mm, the common shot blasting process is adopted, so that the requirements are difficult to realize; when the part with the deeper circular groove is shot-blasted, the inner wall of the circular groove is difficult to obtain enough shot-blasting strength and uniform coverage rate, so that the mechanical strength and the wear resistance of the part can not reach the standard; through the arrangement of the guide plate 1, when the shot blasting machine sprays high-speed shot blasting, the shot blasting moves on the surface of the guide plate 1, and in the moving process, the air compressor injects high-pressure gas into the guide plate 1, so that the high-pressure gas overflows from the air outlet 2 on the guide plate 1, and the shot blasting is guided; because the shot blasting is very small, the moving direction is easy to change under the guidance of high-pressure gas; meanwhile, the high-speed gas blown out from the air outlet 2 can be decomposed into wind perpendicular to the moving direction of the shot blasting and wind parallel to the moving direction of the shot blasting, and the wind parallel to the moving direction of the shot blasting plays a role in accelerating the shot blasting; the high-speed gas vertical to the moving direction of the shot blasting plays a role in changing the moving direction of the shot blasting, so that the moving direction of the shot blasting is changed from being parallel to the inner wall of the circular groove to being vertical to the inner wall of the circular groove, the shot blasting impacts the inner wall of the circular groove at a high speed, and the mechanical strength and the wear resistance of the inner wall of the circular groove are improved; after impacting the inner wall of the circular groove, the shot blasting is carried out of the circular groove from the other side surface of the guide plate 1 along with the gas, so that the blocking of the shot blasting is avoided; when the guide device works in circular grooves with different sizes, the second plate 4 pops out under the action of the reset spring, so that the rollers 5 on the first plate 3 and the second plate 4 are in contact with the inside of the circular grooves, the positioning effect is achieved, and the guide device can be changed by holding the connecting rod 6 to rotate the guide plate 1.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. A metal surface shot peening apparatus, characterized in that: comprises a guide plate (1), the guide plate (1) is used for guiding shot blasting, the guide plate (1) is of an arc-shaped cavity structure, the surface of the top end of the guide plate (1) is provided with air outlets (2) at equal intervals along the length direction, the inner cavity of the guide plate (1) is connected with an air compressor through a connecting pipe, the air compressor is used for conveying air into the inner cavity of the guide plate (1), four first plates (3) are fixed on the side wall of the guide plate (1), rectangular grooves are formed in the top ends of the first plates (3), return springs are fixed at the bottoms of the rectangular grooves, a second plate (4) is fixed at the top end of the return spring, rollers (5) are rotatably connected to the bottom end of the first plate (3) and the top end of the second plate (4), and connecting rods (6) are respectively fixed on the two first plates (3) positioned at one end of the guide plate (1);
two ends of the air outlet (2) are symmetrically provided with two swing units (18); the swing unit (18) comprises an arc spring (19) and a swing plate (20); the oscillating plate (20) is contacted and attached to the surface of the guide plate (1), and the oscillating plates (20) are fixedly connected to one end of the arc-shaped spring (19); the other ends of the arc springs (19) are fixedly connected to the surface of the guide plate (1); when the air compressed by the air compressor is sprayed out from the air outlet (2), the attached swing plate (20) is pushed away forcibly, so that the swing plate (20) is separated from the surface of the guide plate (1), and shot blasting at the edge of the air outlet (2) is bounced.
2. A metal surface shot peening apparatus according to claim 1, wherein: keep away from two of connecting rod (6) be fixed with drum (7) between one board (3), drum (7) surface rotation is connected with dials material gear (8), deflector (1) bottom is equipped with two mouths of blowing (9), and mouth of blowing (9) are used for dialling material gear (8) conveying gas and make and dial material gear (8) and rotate to dialling material gear (8).
3. A metal surface shot peening apparatus according to claim 2, wherein: the guide plate (1) is communicated with an inner cavity of the cylinder (7) through an air pipe, the side wall of the cylinder (7) is provided with a rectangular groove (10), the included angle between the opening direction of the rectangular groove (10) and a plate (3) is 45 degrees, and the side wall of the material shifting gear (8) is provided with more than two rectangular grooves (11) along the circumferential direction in equal distance, so that the air in the cylinder (7) is sprayed out of the cylinder (7) after passing through the rectangular grooves (10) and the rectangular grooves (11).
4. A metal surface shot peening apparatus according to claim 3, wherein: dial material gear (8) including teeth of a cogwheel (12) and installation department (13), one side that installation department (13) were kept away from in teeth of a cogwheel (12) is equipped with accomodates groove (14), accomodates groove (14) internal fixation and has spacing spring (15), and the free end of spacing spring (15) is fixed with slider (16).
5. A metal surface shot peening apparatus according to claim 4, wherein: the slider (16) is of a semicircular structure, the side wall of the slider (16) is provided with an air hole (17), and the air hole (17) extends into the cylinder (7).
6. A metal surface shot peening apparatus according to claim 1, wherein: the swinging plate (20) is formed by hinging a group of sub-plates (21), and the hinging part of the adjacent sub-plates (21) is far away from the surface of the guide plate (1).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911110605.5A CN110666702B (en) | 2019-11-14 | 2019-11-14 | Shot peening treatment device for metal surface |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911110605.5A CN110666702B (en) | 2019-11-14 | 2019-11-14 | Shot peening treatment device for metal surface |
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| CN110666702A true CN110666702A (en) | 2020-01-10 |
| CN110666702B CN110666702B (en) | 2021-06-22 |
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| CN110666702B (en) | 2021-06-22 |
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