CN113953984A

CN113953984A - Processing technology of flashlight

Info

Publication number: CN113953984A
Application number: CN202111048482.4A
Authority: CN
Inventors: 曹勇平; 孙晶晶
Original assignee: Ningbo Jingcheng Intelligent Technology Co ltd
Current assignee: Ningbo Jingcheng Intelligent Technology Co ltd
Priority date: 2021-09-08
Filing date: 2021-09-08
Publication date: 2022-01-21
Anticipated expiration: 2041-09-08
Also published as: CN113953984B

Abstract

The invention discloses a processing technology of a flashlight, which comprises the following sand blasting steps: a, placing a flashlight shell to a support station by using a manipulator; b, driving a first positioning assembly by using a driving assembly to position the flashlight shell above the supporting assembly; c, the centering assembly is always positioned at the midpoint position of the first supporting wheel and the third supporting wheel through the action of the third positioning assembly, and the centering assembly clamps and fixes the flashlight from two clamping parts of the shell of the flashlight; e, rotating the flashlight, and then carrying out sand blasting on the flashlight shell by a plurality of side-by-side spray heads; step F, taking out the flashlight shell after sand blasting is finished, and putting the flashlight shell into a new flashlight shell; through having set up third locating component, can find the position of flashlight shell centre of a circle fast, increased the commonality of location centering to flashlight shell.

Description

Processing technology of flashlight

Technical Field

The invention belongs to the technical field of flashlight processing, and particularly relates to a flashlight processing technology.

Background

The flashlight is a common living article, has various application fields and types, is a processed common flashlight and an industrially used highlight flashlight, but comprises a flashlight shell, and the processing of the flashlight shell needs punching and chamfering equipment and also needs sand blasting on the shell of the flashlight; need fix a position the flashlight when handling these course of working, need find the centre of a circle of flashlight shell, later provide power in centre of a circle department, make the flashlight shell rotate, thereby process its excircle, but the model of flashlight has a lot, thereby lead to the variation in size of flashlight shell, but current equipment can't fix a position according to the flashlight of different diameters, can't be quick, automatic, accurate its centre of a circle of finding, thereby make and cause the error easily when adding man-hour, especially when carrying out the sandblast to the flashlight, can be because the unable accurate location of spraying leads to the flashlight to rotate when sandblast position is fixed, because rotatory circle is beated too big, thereby lead to the sandblast inhomogeneous.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention provides the flashlight processing technology which enables the flashlight to rotate more stably, so that the sand blasting effect is better, and the flashlight can be better attached.

In order to achieve the purpose, the invention adopts the following technical scheme: a working personnel welds the switch assembly and bulb together, use the numerical control lathe to the excircle finish machining to its test quality, aluminium blanking, use the aluminium material after deburring machine to the processing to repair the burr, use the outer casing sand blasting machine of the electric torch to carry on the sand blasting to the outer casing of the electric torch, cut off the both ends without sand blasting to the outer casing of the electric torch, use the numerical control center to empty the outer casing of the electric torch, put the switch bulb into outer casing of the electric torch, and weld together; the sand blasting machine comprises a first support, a support assembly arranged in the middle of the first support, a positioning and centering device arranged above the first support, a first blocking plate arranged on the inner side of the positioning and centering device, a first rotating shaft arranged below the positioning and centering device, and a plurality of nozzles arranged on the first rotating shaft; the supporting station, the positioning station, the centering station, the clamping station and the sand blasting station are formed by the structure; the sand blasting treatment comprises the following steps: step A, placing the flashlight shell on a supporting station by using a manipulator, and supporting the flashlight shell by a supporting assembly; b, driving a first positioning assembly by using a driving assembly to position the flashlight shell above the supporting assembly; c, the first supporting wheel, the second supporting wheel and the third supporting wheel are attached to the surface of the flashlight shell, and then the angle and the length of the second positioning assembly can be changed along with the position change of the second supporting wheel and the third supporting wheel; the first supporting wheel, the second supporting wheel and the third supporting wheel form a triangle in an enclosing mode; the second supporting wheel and the third supporting wheel are arranged on the first positioning assembly; two straight lines formed by the second supporting wheel and the third supporting wheel and the first supporting wheel and the second supporting wheel are mutually vertical; therefore, the center positions of the two points of the first supporting wheel and the third supporting wheel on the second positioning assembly can be known to be the circle center of the flashlight shell according to the fact that the center point of the hypotenuse of the right triangle inscribed in the circle is the circle center; the first positioning component comprises a first connecting rod hinged to the second supporting wheel, a first sliding chute arranged on the first connecting rod, and a first control component arranged above the first connecting rod and abutted against the third supporting wheel to enable the third supporting wheel to move downwards; the first sliding block comprises a second connecting rod hinged to the first supporting wheel and a second sliding groove arranged on the second connecting rod; the third supporting wheel is hinged and slidably connected into the first sliding groove, and the third supporting wheel is hinged and slidably arranged in the second sliding groove; the driving assembly is connected to the first positioning assembly; the method comprises the following specific steps: before discharging, the driving assembly drives the first positioning assembly to move to the side, the flashlight shell is placed above the supporting assembly to be supported, then the driving assembly drives the first positioning assembly to move back, namely the first connecting rod returns, the second supporting wheel and the third supporting wheel on the first connecting rod can clamp the flashlight shell, and therefore the first supporting wheel and the second supporting wheel are located on the same horizontal line; the second supporting wheel and the third supporting wheel are positioned in the first sliding groove; the first supporting wheel and the third supporting wheel are positioned on the second positioning assembly, so that the positioning and centering of the flashlight shell are realized; d, the first supporting wheel, the second supporting wheel and the third supporting wheel can change positions according to the change of the outer diameter of the shell of the flashlight, the centering assembly is always positioned at the midpoint position of the first supporting wheel and the third supporting wheel through the action of the third positioning assembly, and the centering assembly clamps and fixes the flashlight from two sides of the shell of the flashlight; e, rotating the flashlight, then carrying out sand blasting on the flashlight shell by a plurality of side-by-side spray heads, blocking sand sprayed by the spray heads through the first blocking plate and the supporting assembly, and protecting the sand blasting machine; step F, taking out the flashlight shell after sand blasting is finished, and putting the flashlight shell into a new flashlight shell; three points are selected on the concentric circle of the flashlight shell, namely the first supporting wheel, the second supporting wheel and the third supporting wheel, so that the triangle surrounded by the three points is a right-angled triangle, the middle point on the hypotenuse of the right-angled triangle is also the center of the concentric circle, namely the center of the flashlight shell, then the centering component is accurately positioned at the middle point of the first supporting wheel and the third supporting wheel through the third positioning component, the centering component can be better positioned at the center of the flashlight shell, the flashlight shell can better rotate by taking the center of the circle as the center when rotating, namely errors generated when the flashlight shell rotates due to the problems existing in positioning can be more reduced, and the distance between the spray head and the flashlight shell can be better ensured not to change when the spray head performs sand blasting on the flashlight shell, thereby better messenger's sandblast is more even, increases the effect of sandblast to the technology effect that makes flashlight processing is better, and product quality is better.

Furthermore, the first positioning assembly further comprises a first supporting rod fixedly arranged on the third supporting wheel, a first sliding block rotatably connected to the first supporting rod, and a second supporting rod fixedly arranged on the second supporting wheel; the first sliding block is arranged in the first sliding groove in a sliding manner; the second support rod is rotatably connected to the first connecting rod; the second positioning assembly further comprises a third supporting rod fixedly arranged on the first rotating shaft of the second blocking plate and a third sliding block which is connected inside the second sliding chute in a sliding mode and is rotatably connected to the first supporting rod; the third support rod is rotatably connected to the second connecting rod; the third positioning assembly comprises two third connecting rods hinged to the third supporting rod and the first supporting rod, a first guide rod connected to the third connecting rods, a fourth connecting rod connected to the first guide rod, two fifth sliding blocks hinged to the fourth connecting rods, a second guide rod connected to the fifth sliding blocks in a sliding mode, and a centering component arranged in the second sliding groove in a sliding mode; the second guide rod is connected to the centering component; the first support rod, the second support rod and the third support rod are completely the same as the first support wheel, the second support wheel and the third support wheel in axle center position and distance; the method comprises the following specific steps: when the driving component drives the first connecting rod to move towards the side, the first sliding groove in the first connecting rod drives the first sliding block to move, so that the first sliding block drives the first supporting rod to move, the first supporting rod drives the second sliding block to move towards the side, then the first connecting rod drives the second supporting rod to move, the second supporting rod drives the second supporting wheel to move together, so that the first connecting rod is at a yielding position, the flashlight shell can be normally placed on the supporting component, then the driving component drives the first connecting rod to reset, so that the flashlight shell is positioned, when the first supporting wheel, the second supporting wheel and the third supporting wheel change positions along with the change of the outer diameter of the flashlight shell, the first sliding block and the third sliding block respectively slide in the first sliding groove and the second sliding groove, so that the intersection point of the first connecting rod and the third sliding block is always the first supporting rod, therefore, the positioning by using the shell of the three-point flashlight is normally realized, the position of the circle center is quickly found out through the positioning midpoint of the bevel edges of the first supporting wheel and the third supporting wheel, then the position of the third supporting rod is not changed, the positions of the first supporting rod and the second supporting rod are changed, namely the distance between the third supporting rod and the first supporting rod is changed, the first supporting rod and the second supporting rod are the bevel edges of a right triangle, when the distance between the first supporting rod and the second supporting rod is changed, the angle between straight lines formed by the two third connecting rods, the first guiding rod and the fourth connecting rod is changed, and then the fifth sliding block is connected to the second guiding rod in a sliding manner, so that when one of the third connecting rods moves, the second guiding rod is driven to slide on the fifth sliding block, and then the fifth sliding block drives the other third connecting rod to move, so that the two third connecting rods keep the same movement, the centering component is always positioned at the center of the third spring and the first supporting rod, and the position of the centering component is the circle center; the first sliding block and the third sliding block are driven to move together when moving through the arrangement of the second guide rod, so that the centering component is ensured to be located at the position of the circle center, and the circle center is positioned.

Further, the first guide rod is fixedly connected to the fourth connecting rod; the first guide rod is connected to the third connecting rod in a sliding manner; the third positioning assembly further comprises two second rotating shafts which are rotatably connected to the fifth sliding block and positioned on two sides of the fifth sliding block, and first gears which are fixedly arranged on the two second rotating shafts and are meshed with each other; when the first sliding block and the third sliding block move, the first supporting rod is driven to move, so that the distance between the first supporting rod and the third supporting rod is increased, when the increased distance is greater than the sum of the two third connecting rods, the first guide rod and the fourth connecting rod, namely, the third connecting rod is driven to move towards two sides, then the third connecting rod slides on the first guide rod, in the sliding process, the included angle between the third connecting rod and the second connecting rod changes, so that the fourth connecting rod can be driven to rotate along with the change of the angle, then the fourth connecting rod can also rotate another fourth connecting rod through the matching of the second rotating shaft and the first gear, so that an isosceles triangle is formed by the two third connecting rods and the second connecting rod, and therefore, the third connecting rod, the first guide rod and the fourth connecting rod are ensured to be in the same length, so that the third supporting wheel is driven to slide in the second sliding chute, the second guide rod moves together, and the centering component is positioned at the midpoint of the first support rod and the third support rod; when the increased distance is smaller than the sum, the third connecting rod, the first guide rod and the fourth connecting rod are kept away through the same isosceles triangle, so that the angles and the lengths of the third connecting rod, the first guide rod and the fourth connecting rod are the same, and the centering component is also ensured to be positioned at the position of the circle center;

if the third link, the first guide bar and the fourth link are fixed together, and the third link, the first guide bar and the fourth link are combined links, the length of the combined link is fixed, so that theoretically, when the first slider and the third slider move, the farthest distance is the position where the two combined links are parallel to the second link, the maximum size for centering and positioning the flashlight housing is limited, in order to maintain the stability of the movement, the included angle between the combined link and the second guide bar is kept to be larger than an included angle, the two combined links can better perform synchronous movement under the action of the second guide bar and the fifth slider, if the size of the combined link is increased to increase the maximum size of the positioning, the minimum size for positioning the flashlight housing is increased under the condition that the combined link is too long, and the positioning range cannot be effectively increased, therefore, the length of the combined connecting rod can be changed through the combination, so that the length of the combined connecting rod is reduced when the combined connecting rod is positioned in a small size, and the length is increased when the combined connecting rod is positioned in a large size, thereby better improving the positioning of different flashlight shell sizes, improving the universality and better improving the positioning range.

Furthermore, the centering component comprises an eighth sliding block arranged in the second sliding groove in a sliding manner, a sixth sliding block arranged on the second guide rod in a sliding manner, two sixth guide rods fixedly arranged at two sides of the sixth sliding block, a fifth connecting rod fixedly arranged at two sides of the sixth guide rod, a third sliding groove arranged in the fifth connecting rod, a seventh sliding block arranged in the third sliding groove in a sliding manner, and a third rotating shaft which is rotatably connected to the seventh sliding block and fixedly arranged on the third connecting rod; when the two first gears are used for a long time, the problem of gear looseness can occur, so that the active third connecting rod can rotate for a certain angle, the angle for driving the other third connecting rod to rotate is smaller than the angle for driving the third connecting rod to rotate due to the gear looseness, so that the included angle between the two third connecting rods and the second connecting rod cannot be well ensured to be the same, when the distance between the first supporting rod and the third supporting rod is greatly changed, the eighth sliding block cannot be well ensured to be positioned at the position of the circle center, then, when one of the third connecting rods moves, the position of a third rotating shaft on the third connecting rod can be changed, the position can move downwards, then, the fifth connecting rod is sleeved on the third rotating shaft through the seventh sliding block and is also in sliding connection with the second guide rod, namely, when the position of the third rotating shaft is changed, the position of the fifth connecting rod can be changed, thereby, that is, the fifth connecting rod slides on the second guide bar, later the fifth connecting rod can drive the third pivot on another third connecting rod and move together, thereby can make the third pivot on two third connecting rods keep same height, thereby can make two third connecting rods keep same angle, thereby make two third connecting rod synchronous motion, the stability of assurance motion that also can be fine after just also having realized not hard up when the gear, thereby also can be fine assurance sixth slider is in mid point position, thereby better promoting the location, the stability of the location and the centering of the centre of a circle of flashlight shell has been guaranteed to the centering scope simultaneously.

Furthermore, the driving assembly comprises a first supporting plate fixedly arranged on the side surface of the first support, a second motor fixedly arranged on the first supporting plate, and a first lead screw fixed at the output end of the second motor; the first positioning component also comprises two third fixed plates fixedly arranged above the first support, a fifth guide rod fixedly arranged between the two third fixed plates, a connecting plate slidably arranged on the fifth guide rod, a guide rail fixedly arranged above the first support, a second sliding block slidably arranged on the guide rail and fixedly connected to the connecting plate, and a sliding plate in threaded connection with the first lead screw and fixedly connected to the second sliding block; a first guide member connected to the second support wheel; the first guide part comprises a fourth sliding block fixedly arranged on the first connecting rod, a first connecting rod of the positioning and centering device fixedly arranged on the first supporting plate and a fourth guide rod for fixing the second fixing plate; the fourth sliding block is connected to the fourth guide rod in a sliding mode; the number of the fourth guide rods is two; the method comprises the following specific steps: the second motor drives the first screw rod to rotate, the first screw rod drives the sliding plate to move when rotating, thereby, namely, the sliding plate drives the second sliding block to move, the second sliding block slides on the guide rail, then the second sliding block drives the connecting plate to move, the connecting plate slides on the fifth guide rod, the second supporting wheel is fixedly connected with the connecting plate, thereby driving the second supporting wheel to move together, then the fourth slide block slides on the fourth guide rod to drive the first connecting rod to move together, thereby the first connecting rod keeps moving vertically, and the triangle formed by the first supporting wheel, the second supporting wheel and the third supporting wheel is a right-angled triangle no matter how the position is changed, therefore, the process of determining the circle center of the flashlight shell by using the right triangle is better ensured, and the positioning stability is improved.

Furthermore, the first control part comprises two first fixing plates fixedly arranged on the side surfaces of the first connecting rods, a third guide rod fixedly arranged between the two first fixing plates, a third support arranged on the third guide rod in a sliding manner, and a first spring arranged on the third support and used for abutting against the third support; two side surfaces of the first connecting rod are provided with first fixing plates; the third support is fixedly connected to the third supporting wheel; the method comprises the following specific steps: when the first connecting rod moves to the side, the position of the third supporting wheel can make the third supporting wheel move downwards under the action of the first spring pressing the third bracket downwards, so that the third supporting wheel is at a lower position, namely at the lowest position of the first sliding chute, and then the first connecting rod is driven by the second motor to perform the return movement, the flashlight shell is fixed, then the third supporting wheel is in a low position, so that the third supporting wheel can be better contacted with the shell of the flashlight when in motion, therefore, the first supporting wheel, the second supporting wheel and the third supporting wheel can be contacted with the shell of the flashlight when the shell of the flashlight is positioned better, the three can be ensured to be positioned on the concentric circle of the shell of the flashlight better, therefore, the up-and-down sliding of the third bracket is more stable through the two third guide rods.

Furthermore, the centering assembly comprises a second bracket fixedly arranged on the eighth sliding block, a third motor fixedly arranged on the second bracket, a second gear fixedly connected to the output end of the third motor, a third gear meshed with the second gear, a clamping plate fixedly connected to the third gear and rotatably connected to the eighth sliding block, a third gear fixedly connected to the pin shaft and meshed with the second gear, a fixed block fixedly arranged on the second connecting rod, an electric push rod fixedly connected to the output end of the fixed block, a push plate fixedly connected to the electric push rod, and a thrust bearing arranged between the push plate and the clamping plate and sleeved on the pin shaft; the method comprises the following specific steps: when the first supporting wheel, the second supporting wheel and the third supporting wheel are used for fixing the flashlight shell, the fixed block drives the electric push rod to move, the second gear nozzle drives the push plate to move, the push plate drives the clamping plate to move through the thrust bearing, the clamping plate rotates through the pin shaft and is arranged in the eighth sliding block in a sliding manner, thereby pushing the clamping plate to move through the thrust bearing, so that the clamping plate is clamped on the shell of the flashlight, then the third motor drives the second gear to rotate, the second gear drives the third gear to rotate, thereby the third gear drives the grip block rotatory to can drive the flashlight shell through the grip block and rotate, later thrust bearing locates between push pedal and the grip block, makes the rotation of grip block not receive the influence of the push pedal of immobilization, thereby makes the grip block normally rotate, thereby has improved the rotation efficiency of grip block.

Furthermore, the supporting component comprises a connecting component arranged on the first support, a sixth connecting rod connected to the connecting component, a first supporting component connected to the sixth connecting rod, and a second supporting component fixedly arranged on the bottom surface and used for guiding the sixth connecting rod; the connecting assembly comprises a guide block fixedly arranged above the first support, a first sliding rod arranged in the guide block in a sliding manner, a second support plate fixedly arranged on the first sliding rod, and a second spring arranged between the second support plate and the first sliding rod; the second supporting plate is hinged to the sixth connecting rod; the first supporting part is connected to the sixth connecting rod; the first supporting part comprises a fourth spring fixedly arranged on the ground, a supporting foot seat first blocking plate fixedly arranged on the fourth spring, a first lifting plate arranged above the seventh guide rod in a sliding manner, and a third spring arranged between the first lifting plate and the supporting foot seat; a fourth fixing plate is fixedly arranged on the second sliding block; the first lifting plate is hinged to the sixth connecting rod; the concrete steps are that when the first connecting rod moves towards the side, namely the second sliding block drives the fourth fixing plate to move towards the side, then the fourth fixing plate can impact the second supporting plate to drive the second supporting plate to move, the second supporting plate can make the second supporting plate stably move under the guidance of the guide block and the first sliding rod, then the second supporting plate can drive the sixth connecting rod to move, then the sixth connecting rod drives the first lifting plate to move upwards under the guidance of the seventh guide rod, then the first lifting plate is lifted upwards to drive the second supporting part to move upwards, so that the position of the second supporting part is too high, then the third spring can act on the first supporting part to move upwards, so that the force required by the sixth connecting rod to drive the first lifting plate to move upwards is reduced, and the first lifting plate can move upwards better, later first connecting rod move to the side when also needing to place the flashlight shell, at this moment the flashlight shell can be placed on the second supporting component, thereby support the flashlight shell, later first connecting rod can reverse motion, thereby can make the flashlight shell fix a position, thereby can not be because first supporting wheel, the influence of second supporting wheel and third supporting wheel position leads to unable normal material loading, thereby also can not lose the support to the flashlight shell when not being in the holding position because second supporting wheel and third supporting wheel, thereby better stability when having guaranteed the material loading of flashlight shell, better messenger fixes a position more reliable and more stable.

Furthermore, the second supporting component comprises a plurality of second sliding rods arranged on the first lifting plate in a sliding manner, a second lifting plate fixedly arranged below the second sliding rods, a fourth supporting wheel fixedly arranged above the second sliding rods, and a fourth spring arranged between the fourth supporting wheel and the first lifting plate; a second blocking plate is arranged on the outer side of the supporting foot seat; a baffle plate is arranged above the second baffle plate; the method comprises the following specific steps: the baffle is opened when second supporting component upward movement supports, when second supporting component downward movement need not support, can reach the inside of second baffler, later the baffle is closed, place during spun sand can reach supporting component, the flashlight shell can be placed in fourth supporting wheel top, later because the flashlight shell shape is circular, later when the flashlight is placed in the top, the second slide bar can reciprocate, thereby make the fourth supporting wheel present circularly to support it, thereby improve the effect of supporting, the phenomenon that the sliding away can not appear.

Further, the first rotating shaft is rotatably arranged on the first bracket; the spray head is fixedly arranged on the first rotating shaft; a transmission belt is arranged on the first rotating shaft; the transmission belt is connected to the first rotating shaft and the third supporting rod; the spray heads are uniformly distributed on the first rotating shaft; the first supporting wheel is provided with a first motor for driving the first supporting wheel; the first motor can drive the first supporting wheel to rotate, so that the first supporting wheel drives the flashlight shell to rotate, then the initial position of the spray head faces the center of the flashlight shell, then the size of the flashlight shell can be changed, so that the positions of the second supporting wheel and the third supporting wheel can be changed, so that the position of the second connecting rod can be rotated, so that the third supporting rod can be rotated, the third supporting rod drives the first rotating shaft to rotate together through the transmission belt, so that the first rotating shaft can drive the spray head to rotate, when the outer diameter of the flashlight shell is changed, the position where the spray head faces is not the center of the circle any more, then the center of the circle can be located on the second connecting rod all the time, then the rotating angle of the second connecting rod is the same as the rotating angle of the third supporting rod, so that the first rotating shaft drives the spray head to rotate by the same angle, therefore, the direction opposite to the spray head can be changed along with the change of the second connecting rod all the time, so that the spray head can better face the shell of the flashlight, and the sand blasting effect of the spray head on the shell of the flashlight is better ensured.

In summary, the flashlight shell can be quickly positioned by arranging the first positioning assembly and the second positioning assembly, and the approximate position of the circle center can be found; the third positioning assembly is arranged, the position of the circle center of the flashlight shell can be found quickly, adaptation can be carried out according to the change of the size of the flashlight shell, the universality of positioning and centering the flashlight shell is increased, the support with the circle center can be better rotated when the flashlight shell is subjected to sand blasting, the rotation is more stable, the sand blasting effect is increased later, and the quality of the flashlight is improved.

Drawings

FIG. 1 is a first schematic structural diagram of the present invention;

FIG. 2 is a second schematic structural view of the present invention;

FIG. 3 is an enlarged view of A of FIG. 2 according to the present invention;

FIG. 4 is an enlarged view of B of FIG. 2 according to the present invention;

FIG. 5 is an enlarged view of C of FIG. 2 according to the present invention;

FIG. 6 is an enlarged view of D of FIG. 2 in accordance with the present invention;

FIG. 7 is a schematic view of the structure above the first bracket of the present invention;

FIG. 8 is a schematic view of the positioning and centering device of the present invention;

FIG. 9 is a schematic structural view of a first positioning assembly of the present invention;

FIG. 10 is a schematic structural view of a third positioning assembly of the present invention;

FIG. 11 is a schematic view of the centering member of the present invention;

FIG. 12 is a schematic view of a support assembly according to the present invention;

FIG. 13 is a schematic view of a connecting assembly according to the present invention;

FIG. 14 is a schematic view of a second barrier plate according to the present invention;

FIG. 15 is a schematic view of the centering assembly of the present invention;

FIG. 16 is a schematic view of the construction of the thrust bearing of the present invention;

Detailed Description

In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention.

As shown in fig. 1-16, in the processing technology of the flashlight, a worker welds a switch assembly and a bulb together, tests the quality of the switch assembly and the bulb, finely processes the excircle of the aluminum material by using a numerical control lathe, trims the burr of the machined aluminum material by using a burr trimming machine, sand-blast-treats the shell of the flashlight by using a shell sand blasting machine, cuts off two ends of the shell of the flashlight which are not sand-blasted, hollows the interior of the shell of the flashlight by using a numerical control center, places the switch bulb into the shell of the flashlight and welds the switch assembly and the bulb together; the sand blasting machine comprises a first support 1, a support assembly 4 arranged in the middle of the first support 1, a positioning and centering device 7 arranged above the first support 1, a first blocking plate 2 arranged on the inner side of the positioning and centering device 7, a first rotating shaft 6 arranged below the positioning and centering device 7, and a plurality of spray heads 5 arranged on the first rotating shaft 6; the supporting station, the positioning station, the centering station, the clamping station and the sand blasting station are formed by the structure; the sand blasting treatment comprises the following steps: step A, placing the flashlight shell on a supporting station by using a manipulator, and supporting the flashlight shell by a supporting component 4; b, driving a first positioning assembly 72 to position the flashlight shell above the support assembly 4 by using a driving assembly 71; step C, attaching the first support wheel 76, the second support wheel 77 and the third support wheel 78 on the surface of the flashlight shell, and then changing the angle and the length of the second positioning assembly 73 along with the position change of the second support wheel 77 and the third support wheel 78; the first support wheel 76, the second support wheel 77 and the third support wheel 78 form a triangle; the second supporting wheel 77 and the third supporting wheel 78 are arranged on the first positioning assembly 72; the two straight lines formed by the second supporting wheel 77 and the third supporting wheel 78 and the first supporting wheel 76 and the second supporting wheel 77 are perpendicular to each other; therefore, the center position of the two points of the first supporting wheel 76 and the third supporting wheel 78 on the second positioning component 73 can be known as the center of the flashlight shell according to the center point of the hypotenuse of the right triangle inscribed in the circle as the center of the circle; the first positioning assembly 72 comprises a first connecting rod 721 hinged to the second supporting wheel 77, a first chute 722 arranged on the first connecting rod 721, and a first control component 724 arranged above the first connecting rod 721 and abutted on the third supporting wheel 78 to enable the third supporting wheel 78 to move downwards; the first sliding block 723 comprises a second connecting rod 731 hinged to the first supporting wheel 76 and a second sliding chute 732 arranged on the second connecting rod 731; the third supporting wheel 78 is hinged and slidably connected in the first sliding groove 722, and the third supporting wheel 78 is hinged and slidably arranged in the second sliding groove 732; the driving assembly 71 is connected to the first positioning assembly 72; the method comprises the following specific steps: the first positioning component 72 is driven by the driving component 71 to move to the side before discharging, the flashlight shell is placed above the supporting component 4 to be supported, then the driving component 71 drives the first positioning component 72 to move back, namely the first connecting rod 721 returns, the second supporting wheel 77 and the third supporting wheel 78 on the first connecting rod 721 clamp the flashlight shell, and therefore the first supporting wheel 76 and the second supporting wheel 77 are located on the same horizontal line; the second support wheel 77 and the third support wheel 78 are located in the first chute 722; the first support wheel 76 and the third support wheel 78 are positioned on the second positioning assembly 73, so as to position and center the flashlight housing; step D, the first support wheel 76, the second support wheel 77 and the third support wheel 78 change positions according to the change of the outer diameter of the shell of the flashlight, the centering assembly 75 is always positioned at the midpoint position of the first support wheel 76 and the third support wheel 78 through the action of the third positioning assembly 74, and the centering assembly 75 clamps and fixes the flashlight from two sides of the shell of the flashlight; e, rotating the flashlight, then carrying out sand blasting on the flashlight shell by the plurality of side-by-side spray heads 5, blocking sand sprayed by the spray heads 5 through the first blocking plate 2 and the supporting component 4, and protecting a sand blasting machine; step F, taking out the flashlight shell after sand blasting is finished, and putting the flashlight shell into a new flashlight shell; three points are selected on the concentric circle of the flashlight shell, namely the first supporting wheel 76, the second supporting wheel 77 and the third supporting wheel 78, so that the triangle surrounded by the three points is a right-angled triangle, the middle point on the hypotenuse of the right-angled triangle is also the center of the concentric circle, namely the center of the flashlight shell, then the centering component 75 is accurately positioned at the middle point of the first supporting wheel 76 and the third supporting wheel 78 through the third positioning component 74, and therefore the centering component 75 can be better positioned at the center of the flashlight shell, the flashlight shell can be better rotated by taking the center of the circle as the center when rotated, namely errors generated when the flashlight shell is rotated due to the problems existing in positioning can be more reduced, and the distance between the sprayer 5 and the flashlight shell can be better ensured not to change when the sprayer 5 sprays sand to the flashlight shell, thereby better messenger's sandblast is more even, increases the effect of sandblast to the technology effect that makes flashlight processing is better, and product quality is better.

Specifically, the first positioning assembly 72 further includes a first supporting rod 725 fixedly disposed on the third supporting wheel 78, a first slider 723 rotatably connected to the first supporting rod 725, and a second supporting rod 729 fixedly disposed on the second supporting wheel 77; the first sliding block 723 is slidably arranged in the first sliding groove 722; the second support rod 729 is rotatably connected to the first link 721; the second positioning assembly 73 further includes a third support bar 734 fixedly disposed on the first rotating shaft 6 of the second blocking plate 3, and a third slide 733 slidably connected to the inside of the second sliding groove 732 and rotatably connected to the first support bar 725; the third support bar 734 is rotatably connected to the second link 731; the third positioning assembly 74 includes two third links 741 hinged to the third support bar 734 and the first support bar 725, a first guide rod 742 connected to the third links 741, a fourth link 743 connected to the first guide rod 742, two fifth sliders 7471 hinged to the fourth link 743, a second guide rod 747 slidably connected to the fifth slider 7471, and a centering member 748 slidably disposed in the second sliding groove 732; the second guide rod 747 is connected to the centering component 748; the first support rod 725, the second support rod 729 and the third support rod 734 have the same axial positions and distances as the first support wheel 76, the second support wheel 77 and the third support wheel 78; the method comprises the following specific steps: when the driving assembly 71 drives the first connecting rod 721 to move laterally, the first sliding slot 722 in the first connecting rod 721 drives the first sliding block 723 to move, so that the first sliding block 723 drives the first supporting rod 725 to move, so that the first supporting rod 725 drives the second sliding block 728 to move laterally, then the first connecting rod 721 drives the second supporting rod 729 to move, the second supporting rod 729 drives the second supporting wheel 77 to move together, so that the first connecting rod 721 is at a position away from the supporting assembly 4, so that the flashlight housing can be normally placed on the supporting assembly 4, then the driving assembly 71 drives the first connecting rod 721 to reset, so that the flashlight housing is positioned, and when the first supporting wheel 76, the second supporting wheel 77 and the third supporting wheel 78 change positions along with the change of the outer diameter of the flashlight housing, the first sliding block 723 and the third sliding block 733 slide in the first sliding slot 722 and the second sliding slot 732 respectively, so that the first link 721 and the third slider 733 have an intersection at all times, that is, the first support rod 725, thereby normally realizing the positioning using the three-point flashlight case, and the center of the circle is quickly found out by locating the middle point of the hypotenuse of the first support wheel 76 and the third support wheel 78, and then the position of the third support rod 734 does not change, and the positions of the first support rod 725 and the second support rod 729 change, that is, the distance between the third support rod 734 and the first support rod 725 changes, the first support rod 725 and the second support rod 729 are the hypotenuses of a right triangle, and then when the distance between the first support rod 725 and the second support rod 729 changes, the angle between the straight lines formed by the two third links 741, the first guide rod 742 and the fourth link 743 changes, and then the fifth slider 7471 is slidably connected to the second guide rod 747, when one of the third links 741 moves, the second guide rod 747 is driven to slide on the fifth slider 7471, and then the fifth slider 7471 drives the other third link 741 to move, so that the two third links 741 keep the same movement, and the centering component 748 is always located at the center of the third spring 434 and the first support rod 725, so that the position of the centering component 748 is the center of the circle.

Specifically, the first guide rod 742 is fixedly connected to the fourth link 743; the first guide rod 742 is slidably connected to the third link 741; the third positioning assembly 74 further includes two second rotating shafts 745 rotatably connected to the fifth sliding block 7471 and located at two sides of the fifth sliding block 7471, and a first gear 746 fixedly disposed on the two second rotating shafts 745 and engaged with each other; the method comprises the following specific steps: when the first slider 723 and the third slider 733 move, the first support rod 725 is driven to move, so that the distance between the first support rod 725 and the third support rod 734 increases, when the increased distance is greater than the sum of the two third links 741, the first guide rod 742 and the fourth link 743, that is, the third link 741 is driven to move towards both sides, then the third link 741 slides on the first guide rod 742, during the sliding process, the included angle between the third link 741 and the second link 731 changes, so that the fourth link 743 is also driven to rotate along with the change of the angle, then the fourth link 743 rotates the other fourth link 743 through the cooperation of the second rotating shaft 745 and the first gear 746, so that the isosceles triangle formed by the two third links 741 and the second link 731 is ensured, and therefore the third link 741, the first guide rod 742 and the fourth link 743 are ensured to be at the same length, thereby causing the third support wheel 78 to slide in the second sliding groove 732, and the second guide rod 747 to move together, and the centering component 748 is located at the midpoint between the first support rod 725 and the third support rod 734;

if the third link 741, the first guide rod 742 and the fourth link 743 are fixed as a single unit, and the three are called a combined link, the length of the combined link is fixed, so that theoretically the maximum distance between the first slider 723 and the third slider 733 is the position where the two combined links are parallel to the second link 731, which limits the maximum size of the centering position of the flashlight housing, and to maintain the stability of the movement, the included angle between the combined link and the second guide rod 747 is maintained to be greater than 30 degrees, so that the two combined links can better perform the synchronous movement under the action of the second guide rod 747 and the fifth slider 7471, and if the size of the combined link is increased to increase the maximum size of the positioning, the minimum size of the positioning of the flashlight housing is increased due to the overlong combined link, therefore, the positioning range cannot be effectively improved, the length of the combined connecting rod can be changed through the combination of the combined connecting rod, the length of the combined connecting rod is reduced when the combined connecting rod is positioned in a small size, and the length of the combined connecting rod is increased when the combined connecting rod is positioned in a large size, so that the positioning of different flashlight shell sizes is better improved, the universality is improved, and the positioning range is better improved.

Specifically, the centering component 748 includes an eighth sliding block 7487 slidably disposed in the second sliding groove 732, a sixth sliding block 7481 slidably disposed on the second guiding rod 747, two sixth guiding rods 7482 fixedly disposed on both sides of the sixth sliding block 7481, a fifth connecting rod 7483 fixedly disposed on both sides of the sixth guiding rod 7482, a third sliding groove 7484 disposed in the fifth connecting rod 7483, a seventh sliding block 7486 slidably disposed in the third sliding groove 7484, and a third rotating shaft 7485 rotatably connected to the seventh sliding block 7486 and fixedly disposed on the third connecting rod 741; the method comprises the following specific steps: when two first gears 746 have been used for a long time, the problem of gear looseness can occur, so that the active third connecting rod 741 rotates by a certain angle, the gear looseness drives another third connecting rod 741 to rotate by an angle smaller than the active third connecting rod 741, so that the included angle between the two third connecting rods 741 and the second connecting rod 731 cannot be well guaranteed to be the same, and therefore when the distance between the first supporting rod 725 and the third supporting rod 734 changes greatly, the position of the eighth slider 7487 at the center of a circle cannot be well guaranteed.

Specifically, the driving assembly 71 includes a first supporting plate 712 fixedly disposed on the side surface of the first bracket 1, a second motor 711 fixedly disposed on the first supporting plate 712, and a first lead screw 713 fixed to an output end of the second motor 711; the first positioning assembly 72 further comprises two third fixing plates 7283 fixedly arranged above the first bracket 1, a fifth guide rod 7282 fixedly arranged between the two third fixing plates 7283, a connecting plate 7281 slidably arranged on the fifth guide rod 7282, a guide rail 726 fixedly arranged above the first bracket 1, a second sliding block 728 slidably arranged on the guide rail 726 and fixedly connected to the connecting plate 7281, and a sliding plate 7284 threadedly connected to the first lead screw 713 and fixedly connected to the second sliding block 728; a first guide component 727 connected to the second support wheel 77; the first guide component 727 comprises a fourth slide block 7273 fixedly arranged on the first connecting rod 721, a positioning and centering device 7 fixedly arranged on the first supporting plate 712, the first connecting rod 721 and a fourth guide rod 7272 fixedly arranged on the second fixing plate 7271; the fourth slide block 7273 is slidably connected to the fourth guide rod 7272; two fourth guide rods 7272 are provided; the method comprises the following specific steps: the second motor 711 drives the first lead screw 713 to rotate, the first lead screw 713 rotates to drive the sliding plate 7284 to move, so that the sliding plate 7284 drives the second slider 728 to move, the second slider 728 slides on the guide rail 726, then the second slider 728 drives the connecting plate 7281 to move, the connecting plate 7281 slides on the fifth guide rod 7282, the second support wheel 77 is fixedly connected to the connecting plate 7281 to drive the second support wheel 77 to move together, then the fourth slider 7273 slides on the fourth guide rod 7272 to drive the first link 721 to move together, so that the first link 721 keeps moving vertically, and a triangle formed by the first support wheel 76, the second support wheel 77 and the third support wheel 78 is a right-angled triangle no matter how the positions are changed by fixing the first link 721 in a vertical state.

Specifically, the first control part 724 includes two first fixing plates 7241 fixedly disposed on the side surfaces of the first connecting rods 721, a third guide rod 7242 fixedly disposed between the two first fixing plates 7241, a third bracket 7244 slidably disposed on the third guide rod 7242, and a first spring 7243 disposed on the third bracket 7244 and abutting against the third bracket 7244; both side surfaces of the first connecting rod 721 are provided with first fixing plates 7241; the third bracket 7244 is fixedly connected to the third supporting wheel 78; the method comprises the following specific steps: when the first link 721 is moved laterally, the position of the third support wheel 78 will cause the third support wheel 78 to move downward by the first spring 7243 pressing the third bracket 7244 downward, so that the third supporting wheel 78 is located at a lower position, i.e., at the lowest position of the first sliding groove 722, and then the first link 721 is moved back by the second motor 711, the flashlight housing is fixed, then the third support wheel 78 is in a low position to better enable the third support wheel 78 to contact the flashlight housing during movement, therefore, the first supporting wheel 76, the second supporting wheel 77 and the third supporting wheel 78 can be contacted with the shell of the flashlight when the shell of the flashlight is positioned better, the three can be ensured to be positioned on the concentric circle of the shell of the flashlight better, thus, it is better to make the up-and-down sliding of the third holder 7244 more stable by the two third guide bars 7242.

Specifically, the centering assembly 75 includes a second bracket 753 fixedly disposed on the eighth slider 7487, a third motor 752 fixedly disposed on the second bracket 753, a second gear 756 fixedly connected to an output end of the third motor 752, a third gear 757 meshed with the second gear 756, a clamping plate 751 fixedly connected to the third gear 757 and rotatably connected to the eighth slider 7487, the clamping plate 751 is rotatably connected to the eighth slider 7487 through a pin shaft, the third gear 757 fixedly connected to the pin shaft and meshed with the second gear 756, a fixed block 754 fixedly disposed on the second connecting rod 731, an electric push rod 755 fixedly connected to an output end of the fixed block 754, a push plate 758 fixedly connected to the electric push rod 755, and a thrust bearing 759 disposed between the push plate 758 and the clamping plate 751 and sleeved on the pin shaft; the method comprises the following specific steps: after the first supporting wheel 76, the second supporting wheel 77 and the third supporting wheel 78 fix the flashlight shell, the fixing block 754 drives the electric push rod 755 to move, the second gear 756 spray head 5 drives the push plate 758 to move, the push plate 758 drives the clamping plate 751 to move through the thrust bearing 759, the clamping plate 751 rotates through the pin shaft and is arranged in the eighth sliding block 7487 in a sliding mode, the clamping plate 751 is pushed to move through the thrust bearing 759, the clamping plate 751 is clamped on the flashlight shell, then the third motor 752 drives the second gear 756 to rotate, the second gear 756 drives the third gear 757 to rotate, the third gear 757 drives the clamping plate 751 to rotate, the flashlight shell is driven to rotate through the clamping plate, and then the thrust bearing 759 is arranged between the push plate 758 and the clamping plate 751.

Specifically, the support assembly 4 includes a connection assembly 41 disposed on the first bracket 1, a sixth link 42 connected to the connection assembly 41, a first support member 43 connected to the sixth link 42, and a second support member 44 fixedly disposed on the bottom surface for guiding the sixth link 42; the connecting assembly 41 comprises a guide block 411 fixedly arranged above the first bracket 1, a first sliding rod 412 slidably arranged in the guide block 411, a second support plate 414 fixedly arranged on the first sliding rod 412, and a second spring 413 arranged between the second support plate 414 and the first sliding rod 412; the second support plate 414 is hinged to the sixth link 42; the first support member 43 is connected to the sixth link 42; the first supporting member 43 includes a fourth spring 443 fixed on the ground, a supporting leg base 433 fixed on the fourth spring 443, a first blocking plate 2 slidably disposed above the seventh guiding rod 432, and a third spring 434 disposed between the first blocking plate 431 and the supporting leg base 433; a fourth fixing plate 7285 is fixedly arranged on the second slider 728; the first lifting plate 431 is hinged to the sixth connecting rod 42; specifically, when the first link 721 moves toward the side, that is, the second slider 728 drives the fourth fixing plate 7285 to move toward the side, then the fourth fixing plate 7285 collides with the second support plate 414, so as to drive the second support plate 414 to move, the second support plate 414 can make the second support plate 414 stably move under the guidance of the guide block 411 and the first slide bar 412, then the second support plate 414 can drive the sixth link 42 to move, then the sixth link 42 drives the first lifting plate 431 to move upward under the guidance of the seventh guide rod 432, then the first lifting plate 431 is lifted upward, so as to drive the second support member 44 to move upward, so as to make the position of the second support member 44 too high, then the third spring 434 exerts an upward moving force on the first support member 43, so as to reduce the force required by the sixth link 42 to drive the first lifting plate 431 to move upward, thereby allowing the first lifting plate 431 to move in a better upward direction.

Specifically, the second support member 44 includes a plurality of second sliding bars 442 slidably disposed on the first lifting plate 431, a second lifting plate 441 fixedly disposed below the second sliding bars 442, a fourth support wheel 444 fixedly disposed above the second sliding bars 442, and a fourth spring 443 disposed between the fourth support wheel 444 and the first lifting plate 431; a second blocking plate 3 is arranged on the outer side of the supporting foot seat 433; a baffle plate 31 is arranged above the second baffle plate 3; the method comprises the following specific steps: when the second supporting part 44 moves upwards to support, the baffle 31 is opened, when the second supporting part 44 moves downwards and does not need to support, the second blocking plate 3 can be located inside, then the baffle 31 is closed, the sprayed sand can reach the supporting component 4, the flashlight shell can be placed above the fourth supporting wheel 444, then the flashlight shell is circular, when the flashlight is placed above, the second sliding rod 442 can move up and down, so that the fourth supporting wheel 444 is circular to support the flashlight, the supporting effect is improved, and the phenomenon of sliding away can not occur.

Specifically, the first rotating shaft 6 is rotatably arranged on the first bracket 1; the spray head 5 is fixedly arranged on the first rotating shaft 6; a transmission belt 61 is arranged on the first rotating shaft 6; the transmission belt 61 is connected to the first rotating shaft 6 and the third supporting rod 734; the spray heads 5 are uniformly distributed on the first rotating shaft 6; the first support wheel 76 is provided with a first motor 735 for driving the first support wheel 76; the first motor 735 will drive the first supporting wheel 76 to rotate, so that the first supporting wheel 76 drives the flashlight case to rotate, then the initial position of the spray head 5 is opposite to the center of the flashlight case, then the size of the flashlight case will change, so that the positions of the second supporting wheel 77 and the third supporting wheel 78 will change, so that the position of the second connecting rod 731 will rotate, so that the third supporting rod 734 will rotate, the third supporting rod 734 will drive the first rotating shaft 6 to rotate together through the driving belt 61, so that the first rotating shaft 6 will drive the spray head 5 to rotate, when the outer diameter of the flashlight case changes, the position that the spray head 5 faces will not be the center of the circle any more, then the center of the circle will always be located on the second connecting rod 731, and then the angle of rotation of the second connecting rod 731 will be the same as the angle of rotation of the third supporting rod 734, so that the first rotation axis 6 rotates the spray head 5 through the same angle.

The specific working process of the invention is as follows: the method comprises the following steps that a worker welds a switch assembly and a bulb together, tests the quality of the switch assembly and the bulb, uses a numerical control lathe to carry out finish machining on an excircle on aluminum material blanking, uses a deburring machine to deburr machined aluminum material, uses a flashlight shell sand blasting machine to carry out sand blasting treatment on the flashlight shell, cuts off two ends of the flashlight shell without sand blasting, uses a numerical control center to empty the interior of the flashlight shell, places the switch bulb into the flashlight shell and welds the switch bulb together;

when the sand blasting machine is used, the flashlight shell needs to be placed on a supporting station by a manipulator and is supported by the supporting component 4;

the second motor 711 drives the first lead screw 713 to rotate, the first lead screw 713 rotates to drive the sliding plate 7284 to move, so that the sliding plate 7284 drives the second slider 728 to move, the second slider 728 slides on the guide rail 726, then the second slider 728 drives the connecting plate 7281 to move, the connecting plate 7281 slides on the fifth guide rod 7282, the second support wheel 77 is fixedly connected to the connecting plate 7281 to drive the second support wheel 77 to move together, then the fourth slider 7273 slides on the fourth guide rod 7272 to drive the first link 721 to move together, so that the first link 721 keeps moving vertically, the triangle formed by the first support wheel 76, the second support wheel 77 and the third support wheel 78 is a right-angled triangle no matter how the positions are changed, and then when the first link 721 moves laterally, the third support wheel 78 is positioned to move downwards under the action of the first spring 7243 pressing the third bracket 7244 downwards, so that the third support wheel 78 is positioned at a lower position, namely, at the lowest position of the first chute 722, then the first connecting rod 721 is driven by the second motor 711 to move back to fix the flashlight housing, then the third support wheel 78 is positioned at a lower position, so that the third support wheel 78 can be better contacted with the flashlight housing during movement, and then when the flashlight housing is placed, the second support wheel 77 and the third support wheel 78 can move to a position that two sides can not block normal feeding;

when the first link 721 moves to the side, that is, the second slider 728 drives the fourth fixing plate 7285 to move in this direction, then the fourth fixing plate 7285 collides with the second supporting plate 414, thereby driving the second supporting plate 414 to move, the second supporting plate 414 can make the second supporting plate 414 stably move under the guidance of the guide block 411 and the first sliding rod 412, then the second supporting plate 414 can drive the sixth link 42 to move, then the sixth link 42 drives the first lifting plate 431 to move upwards under the guidance of the seventh guide rod 432, then the first lifting plate 431 is lifted upwards, thereby driving the second supporting member 44 to move upwards, thereby making the position of the second supporting member 44 too high, then the third spring 434 exerts an upward moving force on the first supporting member 43, thereby reducing the force required by the sixth link 42 to drive the first lifting plate 431 to move upwards, so that the first lifting plate 431 can move in a better upward direction, and then the first connecting rod 721 moves to the side, that is, when the flashlight shell needs to be placed, the flashlight shell can be placed on the second supporting component 44 to support the flashlight shell, and then the first connecting rod 721 moves in the reverse direction to position the flashlight shell; when the second supporting part 44 moves upwards for supporting, the baffle plate 31 is opened, when the second supporting part 44 moves downwards and does not need to be supported, the second blocking plate 3 is arranged inside, then the baffle plate 31 is closed, the sprayed sand is prevented from reaching the supporting assembly 4, the flashlight shell is placed above the fourth supporting wheel 444, then the flashlight shell is circular, when the flashlight is placed above, the second sliding rod 442 moves upwards and downwards, so that the fourth supporting wheel 444 is circular for supporting;

when the driving assembly 71 drives the first connecting rod 721 to move laterally, the first sliding slot 722 in the first connecting rod 721 drives the first sliding block 723 to move, so that the first sliding block 723 drives the first supporting rod 725 to move, so that the first supporting rod 725 drives the second sliding block 728 to move laterally, then the first connecting rod 721 drives the second supporting rod 729 to move, the second supporting rod 729 drives the second supporting wheel 77 to move together, so that the first connecting rod 721 is at a position away from the supporting assembly 4, so that the flashlight housing can be normally placed on the supporting assembly 4, then the driving assembly 71 drives the first connecting rod 721 to reset, so that the flashlight housing is positioned, and when the first supporting wheel 76, the second supporting wheel 77 and the third supporting wheel 78 change positions along with the change of the outer diameter of the flashlight housing, the first sliding block 723 and the third sliding block 733 slide in the first sliding slot 722 and the second sliding slot 732 respectively, so that the first link 721 and the third slider 733 have an intersection at all times, that is, the first support rod 725, thereby normally realizing the positioning using the three-point flashlight case, and the center of the circle is quickly found out by locating the middle point of the hypotenuse of the first support wheel 76 and the third support wheel 78, and then the position of the third support rod 734 does not change, and the positions of the first support rod 725 and the second support rod 729 change, that is, the distance between the third support rod 734 and the first support rod 725 changes, the first support rod 725 and the second support rod 729 are the hypotenuses of a right triangle, and then when the distance between the first support rod 725 and the second support rod 729 changes, the angle between the straight lines formed by the two third links 741, the first guide rod 742 and the fourth link 743 changes, and then the fifth slider 7471 is slidably connected to the second guide rod 747, when one of the third links 741 moves, the second guide rod 747 is driven to slide on the fifth slider 7471, and then the fifth slider 7471 drives the other third link 741 to move, so that the two third links 741 keep the same movement, and the centering component 748 is always located at the center of the third spring 434 and the first support rod 725, so that the position of the centering component 748 is the center of a circle; when the first slider 723 and the third slider 733 move, the first support rod 725 is driven to move, so that the distance between the first support rod 725 and the third support rod 734 increases, when the increased distance is greater than the sum of the two third links 741, the first guide rod 742 and the fourth link 743, that is, the third link 741 is driven to move towards both sides, then the third link 741 slides on the first guide rod 742, during the sliding process, the included angle between the third link 741 and the second link 731 changes, so that the fourth link 743 is also driven to rotate along with the change of the angle, then the fourth link 743 rotates the other fourth link 743 through the cooperation of the second rotating shaft 745 and the first gear 746, so that the isosceles triangle formed by the two third links 741 and the second link 731 is ensured, and therefore the third link 741, the first guide rod 742 and the fourth link 743 are ensured to be at the same length, thereby causing the third support wheel 78 to slide in the second sliding groove 732, and the second guide rod 747 to move together, and the centering component 748 is located at the midpoint between the first support rod 725 and the third support rod 734; when the two first gears 746 are used for a long time, a problem of gear looseness may occur, such that the active third link 741 rotates by a certain angle, and the gear looseness drives the other third link 741 to rotate by an angle smaller than the angle of rotation of the active third link 741, such that the included angle between the two third links 741 and the second link 731 cannot be well ensured, such that when the distance between the first support rod 725 and the third support rod 734 varies greatly, it cannot be well ensured that the eighth slider 7487 is located at the position of the center of the circle, and then when one of the third links 741 moves, the position of the third rotating shaft 7485 on the third link 741 changes, such that the position may move downwards, and then the fifth link 7483 is sleeved on the third rotating shaft 7485 by the seventh slider 7486 and is further connected with the second guide rod 747 in a sliding manner, that when the position of the third rotating shaft 7485 changes, the position of the fifth connecting rod 7483 can be changed, so that the fifth connecting rod 7483 slides on the second guide rod 747, and then the fifth connecting rod 7483 can drive the third rotating shaft 7485 on the other third connecting rod 741 to move together, so that the third rotating shafts 7485 on the two third connecting rods 741 can keep the same height, so that the two third connecting rods 741 can keep the same angle, so that the two third connecting rods 741 can move synchronously, that is, the stability of movement can be well guaranteed after the gear is loosened can be realized, the sixth sliding block 7481 can be well guaranteed to be in the middle point position, the lifting and positioning of the flashlight can be better realized, the positioning range can be guaranteed, and the stability of positioning and centering of the center of the circle of the hand housing can be guaranteed; when the first support wheel 76, the second support wheel 77 and the third support wheel 78 fix the flashlight casing, the fixing block 754 drives the electric push rod 755 to move, the second gear 756 spray head 5 drives the push plate 758 to move, the push plate 758 drives the clamping plate 751 to move through the thrust bearing 759, the clamping plate 751 rotates through the pin shaft and is arranged in the eighth sliding block 7487 in a sliding manner, so that the clamping plate 751 is pushed to move through the thrust bearing 759, the clamping plate 751 is clamped on the flashlight casing, then the third motor 752 drives the second gear 756 to rotate, the second gear 756 drives the third gear 757 to rotate, the third gear 757 drives the clamping plate 751 to rotate, the flashlight casing is driven to rotate through the clamping plate, and then the thrust bearing 759 is arranged between the push plate 758 and the clamping plate 751, so that the rotation of the clamping plate 751 is not influenced by the fixed push plate 758, thereby rotating the clamping plate 751 normally, and improving the rotation efficiency of the clamping plate 751

The second baffle plate 3 enables the spray head 5 to drive the first supporting wheel 76 to rotate, so that the first supporting wheel 76 drives the flashlight housing to rotate, then the initial position of the spray head 5 is directly opposite to the center of the flashlight housing, then the size of the flashlight housing changes, so that the positions of the second supporting wheel 77 and the third supporting wheel 78 change, so that the position of the second connecting rod 731 rotates, so that the third supporting rod 734 rotates, the third supporting rod 734 drives the first rotating shaft 6 to rotate together through the driving belt 61, so that the first rotating shaft 6 drives the spray head 5 to rotate, when the outer diameter of the flashlight housing changes, the position where the spray head 5 faces is no longer the center of the circle, then the center of the circle is always located on the second connecting rod 731, and then the angle of rotation of the second connecting rod 731 is the same as the angle of rotation of the third supporting rod 734, therefore, the first rotating shaft 6 drives the spray head 5 to rotate at the same angle, so that the direction in which the spray head 5 faces changes along with the change of the second connecting rod 731, the spray head 5 faces the shell of the flashlight better, then the spray heads 5 arranged side by side perform sand blasting on the shell of the flashlight, sand sprayed by the spray head 5 is blocked by the first blocking plate 2 and the supporting component 4, and the sand blasting machine is protected; and taking out the flashlight shell after the sand blasting is finished, and putting the flashlight shell into a new flashlight shell.

It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Claims

1. A processing technology of a flashlight is characterized in that a worker welds a switch assembly and a bulb together, tests the quality of the switch assembly and the bulb, finely processes the excircle of the aluminum material by using a numerical control lathe, trims the burr of the processed aluminum material by using a deburring machine, sand-blast-treats the shell of the flashlight by using a shell sand blasting machine, cuts off the two ends of the shell of the flashlight which are not sand-blasted, hollows the interior of the shell of the flashlight by using a numerical control center, places the switch bulb into the shell of the flashlight and welds the switch bulb together; the sand blasting machine comprises a first support (1), a support assembly (4) arranged in the middle of the first support (1), a positioning and centering device (7) arranged above the first support (1), a first blocking plate (2) arranged on the inner side of the positioning and centering device (7), a first rotating shaft (6) arranged below the positioning and centering device (7), and a plurality of spray heads (5) arranged on the first rotating shaft (6); the supporting station, the positioning station, the centering station, the clamping station and the sand blasting station are formed by the structure; the sand blasting treatment comprises the following steps: a, placing a flashlight shell on a supporting station by using a manipulator, and supporting the flashlight shell by a supporting component (4); b, driving a first positioning assembly (72) to position the flashlight shell above the supporting assembly (4) by using a driving assembly (71); c, attaching the first support wheel (76), the second support wheel (77) and the third support wheel (78) to the surface of the flashlight shell, and then changing the angle and the length of the second positioning assembly (73) along with the position change of the second support wheel (77) and the third support wheel (78); the first supporting wheel (76), the second supporting wheel (77) and the third supporting wheel (78) form a triangle; the second supporting wheel (77) and the third supporting wheel (78) are arranged on the first positioning component (72); the second supporting wheel (77) and the third supporting wheel (78) are perpendicular to two straight lines formed by the first supporting wheel (76) and the second supporting wheel (77); therefore, the center positions of the two points of the first supporting wheel (76) and the third supporting wheel (78) on the second positioning assembly (73) can be known to be the circle center according to the fact that the center point of the hypotenuse of the right triangle inscribed in the circle is the circle center; the first positioning assembly (72) comprises a first connecting rod (721) hinged to the second supporting wheel (77), a first sliding groove (722) arranged on the first connecting rod (721), and a first control component (724) arranged above the first connecting rod (721) and abutted against the third supporting wheel (78) to enable the third supporting wheel (78) to be downward; the first sliding block (723) comprises a second connecting rod (731) hinged to the first supporting wheel (76) and a second sliding groove (732) arranged on the second connecting rod (731); the third supporting wheel (78) is hinged and slidably connected into the first sliding groove (722), and the third supporting wheel (78) is hinged and slidably arranged in the second sliding groove (732); the driving assembly (71) is connected to the first positioning assembly (72); the method comprises the following specific steps: the first positioning component (72) is driven by the driving component (71) to move to the side face before discharging, the flashlight shell is placed above the supporting component (4) to be supported, then the driving component (71) drives the first positioning component (72) to move back, namely the first connecting rod (721) returns, the flashlight shell can be clamped by the second supporting wheel (77) and the third supporting wheel (78) on the first connecting rod (721), and therefore the first supporting wheel (76) and the second supporting wheel (77) are located on the same horizontal line; the second supporting wheel (77) and the third supporting wheel (78) are positioned in the first chute (722); the first support wheel (76) and the third support wheel (78) are positioned on the second positioning assembly (73), so as to realize the positioning and centering of the flashlight shell; d, the first support wheel (76), the second support wheel (77) and the third support wheel (78) change positions according to the change of the outer diameter of the shell of the flashlight, the centering assembly (75) is always positioned at the midpoint position of the first support wheel (76) and the third support wheel (78) under the action of the third positioning assembly (74), and the centering assembly (75) clamps and fixes the flashlight from two clamping parts of the shell of the flashlight; e, enabling the flashlight to rotate, then carrying out sand blasting on the shell of the flashlight by the aid of the plurality of side-by-side spray heads (5), blocking sand sprayed by the spray heads (5) through the first blocking plate (2) and the supporting assembly (4), and protecting a sand blasting machine; and F, taking out the flashlight shell after the sand blasting is finished, and putting the flashlight shell into a new flashlight shell.

2. The process of manufacturing a flashlight of claim 1, wherein: the first positioning assembly (72) further comprises a first supporting rod (725) fixedly arranged on the third supporting wheel (78), a first sliding block (723) rotatably connected to the first supporting rod (725), and a second supporting rod (729) fixedly arranged on the second supporting wheel (77); the first sliding block (723) is arranged in the first sliding groove (722) in a sliding manner; the second support rod (729) is rotatably connected to the first connecting rod (721); the second positioning assembly (73) further comprises a third support rod (734) fixedly arranged on the first rotating shaft (6) of the second blocking plate (3), and a third sliding block (733) which is connected to the inside of the second sliding groove (732) in a sliding manner and is rotatably connected to the first support rod (725); the third support rod (734) is rotatably connected to the second link (731); the third positioning assembly (74) comprises two third connecting rods (741) hinged to the third supporting rod (734) and the first supporting rod (725), a first guide rod (742) connected to the third connecting rods (741), a fourth connecting rod (743) connected to the first guide rod (742), two fifth sliding blocks (7471) hinged to the fourth connecting rods (743), a second guide rod (747) connected to the fifth sliding blocks (7471) in a sliding manner, and a centering component (748) arranged in the second sliding groove (732) in a sliding manner; the second guide bar (747) is connected to a centering component (748); the axle center positions and distances of the first support rod (725), the second support rod (729) and the third support rod (734) are completely the same as those of the first support wheel (76), the second support wheel (77) and the third support wheel (78); the method comprises the following specific steps: when the driving assembly (71) drives the first connecting rod (721) to move towards the side, the first sliding groove (722) in the first connecting rod (721) drives the first sliding block (723) to move, so that the first sliding block (723) drives the first supporting rod (725) to move, the first supporting rod (725) drives the second sliding block (728) to move towards the side, then the first connecting rod (721) drives the second supporting rod (729) to move, the second supporting rod (729) drives the second supporting wheel (77) to move together, so that the first connecting rod (721) is in a position where the flashlight shell can be normally placed on the supporting assembly (4), then the driving assembly (71) drives the first connecting rod (721) to reset, so that the flashlight shell is positioned, and when the first supporting wheel (76), the second supporting wheel (77) and the third supporting wheel (78) change positions along with the change of the outer diameter of the flashlight shell, the first sliding block (723) and the third sliding block (733) can respectively change positions along with the change of the outer diameter of the flashlight shell The first sliding groove (722) and the second sliding groove (732) slide in each other, so that the first connecting rod (721) and the third sliding block (733) always have an intersection point, namely the first support rod (725), normal positioning is realized by using the three-point flashlight shell, the position of the circle center is quickly found out through the positioning middle points of the bevel edges of the first support wheel (76) and the third support wheel (78), then the position of the third support rod (734) is not changed, the positions of the first support rod (725) and the second support rod (729) are changed, namely the distance between the third support rod (734) and the first support rod (725) is changed, the first support rod (725) and the second support rod (729) are the bevel edges of a right triangle, and then when the distance between the first support rod (725) and the second support rod (729) is changed, the two third connecting rods (741) and the third support rod (733) are located at the intersection points, The angle between the straight lines formed by the first guide rod (742) and the fourth connecting rod (743) changes, so that the fifth sliding block (7471) is connected to the second guide rod (747) in a sliding manner, when one third connecting rod (741) moves, the second guide rod (747) is driven to slide on the fifth sliding block (7471), then the fifth sliding block (7471) drives the other third connecting rod (741) to move, so that the two third connecting rods (741) keep the same movement, the centering component (748) is always located at the center positions of the third spring (434) and the first supporting rod (725), and the position where the centering component (748) is located is the center of a circle.

3. The process for manufacturing a flashlight of claim 2, wherein: the first guide rod (742) is fixedly connected to the fourth connecting rod (743); the first guide rod (742) is slidably connected to the third link (741); the third positioning component (74) further comprises two second rotating shafts (745) which are rotatably connected to the fifth sliding block (7471) and located at two sides of the fifth sliding block (7471), and a first gear (746) which is fixedly arranged on the two second rotating shafts (745) and is meshed with the two second rotating shafts; the method comprises the following specific steps: when the first slider (723) and the third slider (733) move, the first supporting rod (725) is driven to move, so that the distance between the first supporting rod (725) and the third supporting rod (734) is increased, when the increased distance is larger than the sum of the two third connecting rods (741), the first guide rod (742) and the fourth connecting rod (743), that is, the third connecting rod (741) is driven to move towards two sides, then the third connecting rod (741) slides on the first guide rod (742), during the sliding process, an included angle between the third connecting rod (741) and the second connecting rod (731) is changed, so that the fourth connecting rod (743) is also driven to rotate along with the change of the angle, and then the fourth connecting rod (743) can enable the other fourth connecting rod (743) to rotate through the matching of the second rotating shaft (745) and the first gear (746), so that an isosceles triangle is formed by the two third connecting rods (741) and the second connecting rod (731), thus, the third link (741), the first guide rod (742) and the fourth link (743) are ensured to be at the same length, so that the third support wheel (78) is driven to slide in the second sliding groove (732), the second guide rod (747) moves together, and the centering component (748) is located at the midpoint of the first support rod (725) and the third support rod (734).

4. The process of manufacturing a flashlight of claim 3, wherein: the centering component (748) comprises an eighth sliding block (7487) arranged in the second sliding groove (732) in a sliding manner, a sixth sliding block (7481) arranged on the second guide rod (747) in a sliding manner, two sixth guide rods (7482) fixedly arranged on two sides of the sixth sliding block (7481), a fifth connecting rod (7483) fixedly arranged on two sides of the sixth guide rod (7482), a third sliding groove (7484) arranged in the fifth connecting rod (7483), a seventh sliding block (7486) arranged in the third sliding groove (7484) in a sliding manner, and a third rotating shaft (7485) rotatably connected to the seventh sliding block (7486) and fixedly arranged on the third connecting rod (741); the method comprises the following specific steps: when two first gears (746) live time have been of a specified duration and the gear becomes flexible, thereby can lead to the third connecting rod (741) of initiative rotatory certain angle, can drive another third connecting rod (741) rotatory angle to be less than the rotatory angle of initiative third connecting rod (741) owing to the gear becomes flexible, thereby can not be fine guarantee that the contained angle between two third connecting rods (741) and second connecting rod (731) is the same, thereby can lead to when the distance between first bracing piece (725) and third bracing piece (734) changes greatly, can't be fine guarantee that eighth slider (7487) is in the position of centre of a circle.

5. The process of manufacturing a flashlight of claim 1, wherein: the driving assembly (71) comprises a first supporting plate (712) fixedly arranged on the side surface of the first support (1), a second motor (711) fixedly arranged on the first supporting plate (712), and a first lead screw (713) fixed at the output end of the second motor (711); the first positioning assembly (72) further comprises two third fixing plates (7283) fixedly arranged above the first support (1), a fifth guide rod (7282) fixedly arranged between the two third fixing plates (7283), a connecting plate (7281) slidably arranged on the fifth guide rod (7282), a guide rail (726) fixedly arranged above the first support (1), a second sliding block (728) slidably arranged on the guide rail (726) and fixedly connected to the connecting plate (7281), and a sliding plate (7284) in threaded connection with the first lead screw (713) and fixedly connected to the second sliding block (728); a first guide member (727) connected to the second support wheel (77); the first guide component (727) comprises a fourth sliding block (7273) fixedly arranged on the first connecting rod (721), a positioning and centering device (7) fixedly arranged on the first supporting plate (712), the first connecting rod (721) and a fourth guide rod (7272) for fixing the second fixing plate (7271); the fourth sliding block (7273) is connected to the fourth guide rod (7272) in a sliding manner; two fourth guide rods (7272) are provided; the method comprises the following specific steps: the second motor (711) drives the first lead screw (713) to rotate, the first lead screw (713) rotates to drive the sliding plate (7284) to move, so that the sliding plate (7284) drives the second sliding block (728) to move, the second sliding block (728) slides on the guide rail (726), the second sliding block (728) drives the connecting plate (7281) to move, the connecting plate (7281) slides on the fifth guide rod (7282), the second supporting wheel (77) is fixedly connected to the connecting plate (7281) to drive the second supporting wheel (77) to move together, the fourth sliding block (7273) slides on the fourth guide rod (7272) to drive the first connecting rod (721) to move together, so that the first connecting rod (721) keeps moving vertically, and the first supporting wheel (76), the second supporting wheel (77) and the vertical state of the first connecting rod (721) are fixed, The triangle formed by the third supporting wheels (78) is a right-angled triangle no matter how the position is changed.

6. The process of manufacturing a flashlight of claim 5, wherein: the first control part (724) comprises two first fixing plates (7241) fixedly arranged on the side surface of the first connecting rod (721), a third guide rod (7242) fixedly arranged between the two first fixing plates (7241), a third bracket (7244) slidably arranged on the third guide rod (7242), and a first spring (7243) arranged on the third bracket (7244) and used for abutting against the third bracket (7244); both side surfaces of the first connecting rod (721) are provided with first fixing plates (7241); the third bracket (7244) is fixedly connected to the third supporting wheel (78); the method comprises the following specific steps: when the first connecting rod (721) moves to the side, the third supporting wheel (78) moves downwards under the action of the third bracket (7244) pressed downwards by the first spring (7243), so that the third supporting wheel (78) is positioned at a lower position, namely, at the lowest position of the first sliding chute (722), then the first connecting rod (721) moves back under the driving of the second motor (711) to fix the flashlight shell, then the third supporting wheel (78) can better make the third supporting wheel (78) contact with the flashlight shell when in the low position, so that the first supporting wheel (76), the second supporting wheel (77) and the third supporting wheel (78) can better contact with the flashlight shell when positioning the flashlight shell, and the three can be better ensured to be positioned on the same center circle of the flashlight shell, therefore, the up-and-down sliding of the third bracket (7244) is more stable by the two third guide rods (7242).

7. The process of manufacturing a flashlight of claim 4, wherein: the centering component (75) comprises a second bracket (753) fixedly arranged on the eighth sliding block (7487), a third motor (752) fixedly arranged on the second bracket (753), a second gear (756) fixedly connected to the output end of the third motor (752), a third gear (757) meshed with the second gear (756), a clamping plate (751) fixedly connected to the third gear (757) and rotatably connected to the eighth sliding block (7487), and the clamping plate (751) is rotatably connected with the eighth sliding block (7487) through a pin shaft, a third gear (757) which is fixedly connected on the pin shaft and is meshed with the second gear (756), a fixed block (754) which is fixedly arranged on the second connecting rod (731), an electric push rod (755) which is fixedly connected with the output end of the fixed block (754), a push plate (758) which is fixedly connected with the electric push rod (755), and a thrust bearing (759) which is arranged between the push plate (758) and the clamping plate (751) and is sleeved on the pin shaft; the method comprises the following specific steps: when the first supporting wheel (76), the second supporting wheel (77) and the third supporting wheel (78) fix the flashlight shell, the fixing block (754) drives the electric push rod (755) to move, the second gear (756) spray head (5) drives the push plate (758) to move, the push plate (758) drives the clamping plate (751) to move through the thrust bearing (759), the clamping plate (751) rotates through the pin shaft and is arranged in the eighth sliding block (7487) in a sliding mode, so that the clamping plate (751) is pushed to move through the thrust bearing (759), the clamping plate (751) clamps the flashlight shell, then the third motor (752) drives the second gear (756) to rotate, the second gear (756) drives the third gear (757) to rotate, the third gear (757) drives the clamping plate (751) to rotate, and the flashlight shell is driven to rotate through the clamping plate (751), then, a thrust bearing (759) is provided between the pusher plate (758) and the holding plate (751).

8. The process of manufacturing a flashlight of claim 1, wherein: the supporting assembly (4) comprises a connecting assembly (41) arranged on the first support (1), a sixth connecting rod (42) connected to the connecting assembly (41), a first supporting part (43) connected to the sixth connecting rod (42), and a second supporting part (44) fixedly arranged on the bottom surface and used for guiding the sixth connecting rod (42); the connecting assembly (41) comprises a guide block (411) fixedly arranged above the first support (1), a first sliding rod (412) arranged in the guide block (411) in a sliding manner, a second supporting plate (414) fixedly arranged on the first sliding rod (412), and a second spring (413) arranged between the second supporting plate (414) and the first sliding rod (412); the second support plate (414) is hinged to the sixth link (42); the first support member (43) is connected to the sixth link (42); the first supporting component (43) comprises a fourth spring (443) fixedly arranged on the ground, a supporting foot seat (433) fixedly arranged on the fourth spring (443), a first blocking plate (2), a first lifting plate (431) arranged above the seventh guide rod (432) in a sliding manner, and a third spring (434) arranged between the first lifting plate (431) and the supporting foot seat (433); a fourth fixing plate (7285) is fixedly arranged on the second sliding block (728); the first lifting plate (431) is hinged to the sixth connecting rod (42); the concrete steps are that when the first connecting rod (721) moves towards the side, namely the second sliding block (728) drives the fourth fixing plate (7285) to move towards the direction, then the fourth fixing plate (7285) can impact the second supporting plate (414) to drive the second supporting plate (414) to move, the second supporting plate (414) can make the second supporting plate (414) stably move under the guidance of the guide block (411) and the first sliding rod (412), then the second supporting plate (414) can drive the sixth connecting rod (42) to move, then the sixth connecting rod (42) drives the first lifting plate (431) to move upwards under the guidance of the seventh guide rod (432), then the first lifting plate (431) lifts upwards to drive the second supporting part (44) to move upwards, so that the position of the second supporting part (44) is too high, then the third spring (434) can apply upward movement force to the first supporting part (43), therefore, the force required by the sixth connecting rod (42) to drive the first lifting plate (431) to move upwards is reduced, and the first lifting plate (431) can move in a better upwards direction.

9. The process of claim 8, wherein: the second supporting component (44) comprises a plurality of second sliding rods (442) arranged on the first lifting plate (431) in a sliding mode, a second lifting plate (441) fixedly arranged below the second sliding rods (442), a fourth supporting wheel (444) fixedly arranged above the second sliding rods (442), and a fourth spring (443) arranged between the fourth supporting wheel (444) and the first lifting plate (431); a second blocking plate (3) is arranged on the outer side of the supporting foot seat (433); a baffle plate (31) is arranged above the second baffle plate (3); the method comprises the following specific steps: when the second supporting part (44) moves upwards to support, the baffle (31) is opened, when the second supporting part (44) moves downwards and does not need to support, the second blocking plate (3) can be arranged inside, then the baffle (31) is closed, the sprayed sand can reach the supporting assembly (4) when placed, the flashlight shell can be placed above the fourth supporting wheel (444), then the shape of the flashlight shell is circular, when the flashlight is placed above, the second sliding rod (442) can move up and down, so that the fourth supporting wheel (444) is circular to support, the supporting effect is improved, and the phenomenon of sliding away can not occur.

10. The process of manufacturing a flashlight of claim 1, wherein: the first rotating shaft (6) is rotatably arranged on the first bracket (1); the spray head (5) is fixedly arranged on the first rotating shaft (6); a transmission belt (61) is arranged on the first rotating shaft (6); the transmission belt (61) is connected to the first rotating shaft (6) and the third supporting rod (734); the spray heads (5) are uniformly distributed on the first rotating shaft (6); a first motor (735) for driving the first supporting wheel (76) is arranged on the first supporting wheel (76); the first motor (735) can drive the first supporting wheel (76) to rotate, so that the first supporting wheel (76) drives the flashlight shell to rotate, then the initial position of the spray head (5) is opposite to the circle center of the flashlight shell, then the size of the flashlight shell can be changed, so that the positions of the second supporting wheel (77) and the third supporting wheel (78) can be changed, so that the position of the second connecting rod (731) can be rotated, so that the third supporting rod (734) can be rotated, the third supporting rod (734) drives the first rotating shaft (6) to rotate together through the driving belt (61), so that the first rotating shaft (6) can drive the spray head (5) to rotate, when the outer diameter of the flashlight shell is changed, the position opposite to the spray head (5) is no longer the circle center, and then the circle center is always located on the second connecting rod (731), then the angle of rotation of the second link (731) is the same as the angle of rotation of the third support bar (734), so that the first rotating shaft (6) rotates the spray head (5) by the same angle.