Detection device for metal shell

Abstract

The invention relates to the technical field of metal shell detection, in particular to a detection device for a metal shell, which mainly comprises a supporting seat, a feeding assembly and a distance measuring assembly fixedly mounted on the top surface of the supporting seat, a visual detection assembly, a discharging assembly and a power assembly fixedly mounted on the top surface of the supporting seat, and a blowing mechanism, the blowing mechanism is arranged above the supporting seat, and the sweeping mechanism is arranged above the supporting seat. A rotating shaft is arranged to drive a fixing strip and an extrusion plate to rotate, when the extrusion plate rotates to a pressing cover, the pressing cover is extruded to move, the pressing cover extrudes an air bag, the air bag shrinks to discharge internal air from a spray head through an exhaust pipe, the spray head blows away dust and impurities on the surface of a shell, and it is guaranteed that the surface of the shell is not prone to being blocked and covered by dust; when the visual detection assembly carries out irradiation detection on the shell, irradiated light rays are not prone to being interfered by reflection of dust, the visual detection assembly can accurately detect scratches or cracks on the shell, and the detection accuracy is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of metal shell detection, and specifically provides a detection device for metal shells. Background Technique

[0002] The wireless charging case is an innovative product that combines the protection function of the mobile phone case with wireless charging technology, providing users with a convenient charging experience. The wireless charging case converts the electromagnetic waves emitted by the wireless charger into electrical energy through an internal wireless charging receiving module and then transmits it to the mobile phone battery. Some products, such as the MOMAX magnetic wireless charging power bank, achieve quick connection between the mobile phone case and the power bank through a magnetic attraction design. Users only need to attach the power bank to the back of the mobile phone case to charge. During the processing of the wireless charging case, a detection device is required to detect the appearance of the wireless charging case to ensure that the wireless charging case meets the required quality.

[0003] When the detection device detects the shell of the wireless charging case, it is necessary to convey the shell below the visual detection module. Through this high-precision irradiation method, various detailed information on the surface of the shell can be clearly captured, so as to judge whether there are problems such as scratches, cracks or other defects on the shell appearance. However, when the shell is conveyed below the visual detection, due to various environmental factors and the possible slight vibrations during the operation of the equipment, the inside of the shell is easily covered with a part of dust impurities. When the light emitted by the visual detection component irradiates the shell, these dust impurities hidden inside will interfere with the propagation and reflection of the light. When the visual component irradiates and detects, it is difficult to detect the scratches or cracks on the shell, which easily causes misjudgment of the visual detection component and affects the detection accuracy. Summary of the Invention

[0004] The purpose of the present invention is to provide a detection device for metal shells to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the present invention provides the following technical solutions:

[0006] A detection device for metal shells includes: a support base, an upper feeding component and a distance measuring component are fixedly installed on the top surface of the support base, a visual detection component, a lower feeding component and a power component are fixedly installed on the top surface of the support base, a rotating shaft is fixedly installed at the upper end of the power component, and further includes:

[0007] A blowing mechanism, the blowing mechanism is arranged above the support base, the blowing mechanism includes a spray head located above the support base, an airbag, a fixed shell and a pressing cover are arranged on one side of the spray head, an air inlet pipe is fixedly communicated with the outer wall of the airbag, and a filter plate is fixedly installed on the inner wall of the air inlet pipe. The blowing mechanism is used to blow off the dust on the surface of the charging case;

[0008] Sweeping mechanism, the sweeping mechanism is arranged above the support base. The sweeping mechanism includes a rotating bar located on one side of the filter plate. A brush is fixedly installed on the side of one end of the rotating bar, and a cylinder is fixedly installed at the other end of the rotating bar. The sweeping mechanism is used to sweep the dust on the filter plate.

[0009] Preferably, a turntable is fixedly installed at the upper end of the rotating shaft. A plurality of placing plates are fixedly installed on the top surface of the turntable. The bottom surface of the fixed shell is fixedly connected to the top surface of the power component. The inner wall of the lower end of the fixed shell is fixedly connected to the lower end of the airbag.

[0010] Preferably, the upper end of the airbag is fixedly connected to the bottom surface of the pressing cover. One end of the nozzle is fixedly installed with an exhaust pipe. The other end of the exhaust pipe fixedly penetrates through the outer wall of the fixed shell and is communicated with the airbag. A support rod is fixedly installed on the outer wall of the exhaust pipe. The other end of the support rod is fixedly connected to the side of the power component.

[0011] Preferably, one end of the air inlet pipe fixedly penetrates through the inner wall of the fixed shell and extends to the outside of the fixed shell. Two limiting sleeves are fixedly installed on the side of the pressing cover. Two limiting grooves are provided on the inner wall of the fixed shell. The outer walls of the two limiting sleeves are respectively slidably connected to the inner walls of the two limiting grooves.

[0012] Preferably, limiting rods are respectively slidably installed in the inner walls of the two limiting sleeves. The two ends of the two limiting rods are respectively fixedly connected to the inner walls of the two limiting grooves. Elastic members I are respectively slidably installed on the outer walls of the two limiting rods. The two ends of the two elastic members I are respectively fixedly connected to the lower inner wall of the limiting groove and the bottom surface of the limiting sleeve.

[0013] Preferably, two grooves are provided on the outer wall of the fixed shell. A plurality of fixing strips are fixedly installed on the outer wall of the rotating shaft. The other ends of the plurality of fixing strips are respectively fixedly installed with pressing plates. The outer wall of the pressing plate is slidably connected to the top surface of the pressing cover.

[0014] Preferably, a fixed block is fixedly installed on the outer wall of the fixed shell. The side of the fixed block is rotationally connected to the middle side of the rotating bar through a connecting shaft. The brush is slidably connected to the side surface of the filter plate. A connecting sleeve is fixedly installed on the side of the rotating bar.

[0015] Preferably, an arc-shaped groove is provided on the side of the fixed block. The inner wall of the arc-shaped groove is slidably connected to the outer wall of the connecting sleeve. An arc-shaped rod is slidably installed in the inner wall of the connecting sleeve. The two ends of the arc-shaped rod are fixedly connected to the inner wall of the arc-shaped groove. An elastic member II is slidably installed on the outer wall of the arc-shaped rod. The two ends of the elastic member II are respectively fixedly connected to one inner wall of the arc-shaped groove and the side of the connecting sleeve.

[0016] Preferably, two sliding rods are fixedly installed on the top surface of the fixed block. A moving plate is slidably installed on the outer walls of the two sliding rods. A sliding groove is provided on the side of the moving plate. The inner wall of the sliding groove is slidably connected to the outer wall of the cylinder. Two round blocks are fixedly installed at the upper ends of the two sliding rods.

[0017] Preferably, a pressing strip is fixedly installed on the side of the pressing cover. The lower end of the pressing strip is movably connected to the top surface of the moving plate. A through groove is provided on the side of the fixed shell in a penetrating manner. The inner wall of the through groove is slidably connected to the side of the pressing strip.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] In the present invention, the rotating shaft drives the fixing strip and the pressing plate to rotate. When the pressing plate rotates to the pressing cover, the pressing cover is pushed downward, and the pressing cover squeezes the airbag. The airbag contracts and discharges the internal gas through the exhaust pipe from the nozzle, and the nozzle blows the dust and impurities on the surface of the housing, ensuring that the surface of the housing is not easily blocked by dust. When the visual detection component irradiates and detects the housing, the irradiated light is not easily interfered by the reflection of dust, and the visual detection component can accurately detect scratches or cracks on the housing, improving the accuracy of detection;

[0020] When the pressing cover moves, it drives the pressing strip to move, and the pressing strip squeezes and moves the moving plate. The sliding groove on the moving plate moves, driving the cylinder to move along the inner wall of the sliding groove, thereby driving the rotating bar to rotate by a certain angle. The rotating bar drives the connecting sleeve to squeeze the second elastic member, and the brush on the side of one end of the rotating bar sweeps the dust on the side of the filter plate. When the pressing cover drives the pressing strip to move upward, under the action of the second elastic member, the rotating bar drives the brush to return to its original position, further sweeping the dust on the filter plate, ensuring that the filter plate is not easily blocked, and the airbag can normally intake and exhaust air, and the gas blows the dust on the housing from the nozzle. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a three-dimensional structure diagram of the present invention;

[0022] Figure 2 is a three-dimensional structure diagram of the turntable of the present invention;

[0023] Figure 3 is a three-dimensional structure diagram of the exhaust pipe of the present invention;

[0024] Figure 4 is an exploded three-dimensional structure diagram of the placement plate of the present invention;

[0025] Figure 5 is of the present invention Figure 3 enlarged view of part A;

[0026] Figure 6 is a schematic cross-sectional three-dimensional structure diagram of the fixed housing of the present invention;

[0027] Figure 7 is a three-dimensional structure diagram of the pressing cover of the present invention;

[0028] Figure 8 is a three-dimensional structure diagram of the rotating bar of the present invention.

[0029] In the figure:

[0030] 1. Support base; 101. Loading component; 102. Distance measuring component; 103. Unloading component; 104. Visual inspection component; 105. Power component; 106. Rotating shaft; 107. Turntable; 108. Placing plate;

[0031] 2. Blowing mechanism; 201. Fixed shell; 202. Airbag; 203. Exhaust pipe; 204. Sprayer head; 205. Intake pipe; 206. Filter plate; 207. Pressing cover; 208. Limiting sleeve; 209. Limiting groove; 210. Limiting rod; 211. First elastic member; 212. Groove body; 213. Fixed strip; 214. Extrusion plate; 215. Support rod;

[0032] 3. Sweeping mechanism; 301. Fixed block; 302. Connecting shaft; 303. Rotating bar; 304. Brush bristles; 305. Arc-shaped groove; 306. Connecting sleeve; 307. Arc-shaped rod; 308. Second elastic member; 309. Slide bar; 310. Moving plate; 311. Round block; 312. Slide groove; 313. Cylinder; 314. Pressing strip; 315. Through groove. Detailed implementation manners

[0033] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments may be combined with each other. The present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0034] In order to enable those skilled in the art to better understand the solution of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0035] As Figures 1 - 8 shown, the present application provides a detection device for a metal shell, including: a support base 1, on the top surface of the support base 1, a loading component 101 and a distance measuring component 102 are fixedly installed, on the top surface of the support base 1, a visual inspection component 104, an unloading component 103 and a power component 105 are fixedly installed, at the upper end of the power component 105, a rotating shaft 106 is fixedly installed, and further including:

[0036] A blowing mechanism 2, the blowing mechanism 2 is arranged above the support base 1, the blowing mechanism 2 includes a sprayer head 204 located above the support base 1, on one side of the sprayer head 204, an airbag 202, a fixed shell 201 and a pressing cover 207 are arranged, the outer wall of the airbag 202 is fixedly communicated with an intake pipe 205, on the inner wall of the intake pipe 205, a filter plate 206 is fixedly installed, and the blowing mechanism 2 is used for blowing off the dust on the surface of the charging shell;

[0037] Specifically, as Figures 1 - 8 shown, a turntable 107 is fixedly installed at the upper end of the rotating shaft 106, and a plurality of placement trays 108 are fixedly installed on the top surface of the turntable 107. The bottom surface of the fixed shell 201 is fixedly connected to the top surface of the power assembly 105, and the lower end inner wall of the fixed shell 201 is fixedly connected to the lower end of the airbag 202.

[0038] In this embodiment: Through the provided placement trays 108, the housing is placed, and the provided power assembly 105 drives the rotating shaft 106 and the turntable 107 to rotate to convey the housing.

[0039] Specifically, as Figures 1 - 8 shown, the upper end of the airbag 202 is fixedly connected to the bottom surface of the pressing cover 207. One end of the nozzle 204 is fixedly installed with an exhaust pipe 203. The other end of the exhaust pipe 203 fixedly penetrates the outer wall of the fixed shell 201 and is communicated with the airbag 202. A support rod 215 is fixedly installed on the outer wall of the exhaust pipe 203, and the other end of the support rod 215 is fixedly connected to the side surface of the power assembly 105.

[0040] In this embodiment: When the airbag 202 is pressed through the provided pressing cover 207, the airbag 202 contracts and discharges the internal gas from the nozzle 204 through the exhaust pipe 203 to blow off the dust and impurities on the housing. The provided support rod 215 supports and fixes the exhaust pipe 203. Check valves are installed on both the air inlet pipe 205 and the exhaust pipe 203, so that only air can enter at the air inlet pipe 205 and only air can be exhausted at the exhaust pipe 203.

[0041] Specifically, as Figures 1 - 8 shown, one end of the air inlet pipe 205 fixedly penetrates the inner wall of the fixed shell 201 and extends to the outside of the fixed shell 201. Two limit sleeves 208 are fixedly installed on the side surface of the pressing cover 207. Two limit grooves 209 are formed on the inner wall of the fixed shell 201. The outer walls of the two limit sleeves 208 are respectively slidably connected to the inner walls of the two limit grooves 209.

[0042] In this embodiment: The limit sleeve 208 is limited by the provided limit groove 209, and further the pressing cover 207 is limited, so that the pressing cover 207 moves more stably.

[0043] Specifically, as Figures 1 - 8 shown, two limit rods 210 are respectively slidably installed in the inner walls of the two limit sleeves 208. The two ends of the two limit rods 210 are respectively fixedly connected to the inner walls of the two limit grooves 209. Elastic members 211 are respectively slidably installed on the outer walls of the two limit rods 210. The two ends of the two elastic members 211 are respectively fixedly connected to the lower end inner wall of the limit groove 209 and the bottom surface of the limit sleeve 208.

[0044] In this embodiment: The limiting sleeve 208 is limited by the provided limiting rod 210, and the first elastic member 211 applies an elastic force to the limiting sleeve 208.

[0045] Specifically, as Figures 1 - 8 shown, two grooves 212 are formed in the outer wall of the fixed housing 201. A plurality of fixing strips 213 are fixedly installed on the outer wall of the rotating shaft 106. The other ends of the plurality of fixing strips 213 are respectively fixedly installed with pressing plates 214, and the outer wall of the pressing plate 214 is slidably connected to the top surface of the pressing cover 207.

[0046] In this embodiment: The pressing cover 207 is pressed by the provided pressing plate 214. The pressing cover 207 moves to press the airbag 202, thereby squeezing out the gas inside the airbag 202.

[0047] Sweeping mechanism 3, the sweeping mechanism 3 is arranged above the support base 1. The sweeping mechanism 3 includes a rotating bar 303 on one side of the filter plate 206. A brush 304 is fixedly installed on one side surface of one end of the rotating bar 303. A cylinder 313 is fixedly installed at the other end of the rotating bar 303. The sweeping mechanism 3 is used to sweep the dust on the filter plate 206.

[0048] Specifically, as Figures 1 - 8 shown, a fixing block 301 is fixedly installed on the outer wall of the fixed housing 201. The side surface of the fixing block 301 is rotatably connected to the middle side surface of the rotating bar 303 through a connecting shaft 302. The brush 304 is slidably connected to the side surface of the filter plate 206. A connecting sleeve 306 is fixedly installed on the side surface of the rotating bar 303.

[0049] In this embodiment: By means of the provided brush 304, when the rotating bar 303 rotates, the brush 304 is driven to clean the side surface of the filter plate 206, sweeping the dust on the side surface of the filter plate 206, and it is not easy to block the filter plate 206.

[0050] Specifically, as Figures 1 - 8 shown, an arc-shaped groove 305 is formed in the side surface of the fixing block 301. The inner wall of the arc-shaped groove 305 is slidably connected to the outer wall of the connecting sleeve 306. An arc-shaped rod 307 is slidably installed inside the connecting sleeve 306. Both ends of the arc-shaped rod 307 are fixedly connected to the inner wall of the arc-shaped groove 305. An elastic member two 308 is slidably installed on the outer wall of the arc-shaped rod 307. Both ends of the elastic member two 308 are respectively fixedly connected to one side inner wall of the arc-shaped groove 305 and the side surface of the connecting sleeve 306.

[0051] In this embodiment: The connecting sleeve 306 is limited by the provided arc-shaped groove 305 and arc-shaped rod 307, thereby limiting the rotating bar 303. The second elastic member 308 applies an elastic force to the connecting sleeve 306.

[0052] Specifically, as Figures 1 - 8As shown, two sliding rods 309 are fixedly installed on the top surface of the fixed block 301. A moving plate 310 is slidably installed on the outer walls of the two sliding rods 309. A sliding groove 312 is formed on the side surface of the moving plate 310. The inner wall of the sliding groove 312 is slidably connected to the outer wall of a cylinder 313. Round blocks 311 are fixedly installed at the upper ends of the two sliding rods 309.

[0053] In this embodiment: When the moving plate 310 moves by the setting, the sliding groove 312 on the moving plate 310 moves, driving the cylinder 313 to move on the inner wall of the sliding groove 312, thereby driving the rotating bar 303 to rotate by a certain angle.

[0054] Specifically, as Figures 1 - 8 shown, a pressure strip 314 is fixedly installed on the side surface of the pressing cover 207. The lower end of the pressure strip 314 is movably connected to the top surface of the moving plate 310. A through groove 315 is formed through the side surface of the fixed shell 207. The inner wall of the through groove 315 is slidably connected to the side surface of the pressure strip 314.

[0055] In this embodiment: Through the setting of the pressure strip 314, driven by the pressing cover 207, the pressure strip 314 moves downward, and the pressure strip 314 presses the moving plate 310 to move.

[0056] The specific solution of this scheme is as follows: The feeding component 101 feeds the housing. The housing is fed onto the placing plate 108. The power component 105 drives the rotating shaft 106 and the turntable 107 to rotate. The turntable 107 drives the placing plate 108 and the housing to rotate. The position of the housing is measured by the distance measuring component 102. When the rotating shaft 106 rotates, the rotating shaft 106 drives the fixing strip 213 and the pressing plate 214 to rotate. When the pressing plate 214 rotates to the pressing cover 207, the pressing cover 207 is pressed to move downward. The pressing cover 207 squeezes the airbag 202. The airbag 202 contracts and discharges the internal gas from the nozzle 204 through the exhaust pipe 203. The nozzle 204 blows off the dust and impurities on the surface of the housing, ensuring that the surface of the housing is not easily blocked by dust. When the visual inspection component 104 irradiates and inspects the housing, the irradiated light is not easily interfered by the reflection of dust. The visual inspection component 104 can accurately detect scratches or cracks on the housing, improving the accuracy of the inspection. At the same time, when the pressing cover 207 moves, it drives the pressing strip 314 to move. The pressing strip 314 squeezes and moves the moving plate 310. The sliding groove 312 on the moving plate 310 moves, driving the cylinder 313 to move on the inner wall of the sliding groove 312, thereby driving the rotating bar 303 to rotate a certain angle. And the rotating bar 303 drives the connecting sleeve 306 to squeeze the second elastic member 308. The brush hair 304 on the side surface of one end of the rotating bar 303 sweeps the dust on the side surface of the filter plate 206. When the pressing cover 207 drives the pressing strip 314 to move upward, under the action of the second elastic member 308, the rotating bar 303 drives the brush hair 304 to return to its original position, further sweeping the dust on the filter plate 206, ensuring that the filter plate 206 is not easily blocked, and the airbag 202 can normally intake and exhaust air. The gas blows off the dust on the housing from the nozzle 204. Subsequently, after being detected by the visual inspection component 104, it is conveyed by the discharging component 103.

[0057] Those of ordinary skill in the art should understand that: The discussion of any of the above embodiments is only exemplary; Under the concept of the present invention, the technical features in the above embodiments or different embodiments can also be combined, and the steps can be implemented in any order, and there are many other variations in different aspects of the present invention as described above. For the sake of brevity, they are not provided in detail.

[0058] The present invention aims to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. A detection device for a metal housing, comprising: Support base (1), on the top surface of the support base (1), a feeding component (101) and a ranging component (102) are fixedly installed. On the top surface of the support base (1), a vision detection component (104), a discharging component (103) and a power component (105) are fixedly installed. The upper end of the power component (105) is fixedly installed with a rotating shaft (106). It is characterized in that it further includes: A blowing mechanism (2), the blowing mechanism (2) is arranged above the support base (1). The blowing mechanism (2) includes a spray head (204) located above the support base (1). One side of the spray head (204) is provided with an airbag (202), a fixed shell (201) and a pressing cover (207). The outer wall of the airbag (202) is fixedly communicated with an air inlet pipe (205). The inner wall of the air inlet pipe (205) is fixedly installed with a filter plate (206). The blowing mechanism (2) is used for blowing dust on the surface of the charging shell. A sweeping mechanism (3), the sweeping mechanism (3) is arranged above the support base (1). The sweeping mechanism (3) includes a rotating bar (303) located on one side of the filter plate (206). One side of the rotating bar (303) is fixedly installed with a brush (304). The other end of the rotating bar (303) is fixedly installed with a cylinder (313). The sweeping mechanism (3) is used for sweeping dust on the filter plate (206).

2. The detection device for a metal shell according to claim 1, wherein The upper end of the rotating shaft (106) is fixedly installed with a turntable (107). On the top surface of the turntable (107), a plurality of placing plates (108) are fixedly installed. The bottom surface of the fixed shell (201) is fixedly connected with the top surface of the power component (105). The inner wall of the lower end of the fixed shell (201) is fixedly connected with the lower end of the airbag (202).

3. The detection device for a metal housing according to claim 2, characterized in that, The upper end of the airbag (202) is fixedly connected with the bottom surface of the pressing cover (207). One end of the spray head (204) is fixedly installed with an exhaust pipe (203). The other end of the exhaust pipe (203) fixedly penetrates through the outer wall of the fixed shell (201) and is communicated with the airbag (202). The outer wall of the exhaust pipe (203) is fixedly installed with a support rod (215). The other end of the support rod (215) is fixedly connected with the side surface of the power component (105).

4. The detection device for a metal housing according to claim 3, characterized in that, One end of the air inlet pipe (205) fixedly penetrates through the inner wall of the fixed shell (201) and extends to the outside of the fixed shell (201). Two limiting sleeves (208) are fixedly installed on the side surface of the pressing cover (207). Two limiting grooves (209) are opened on the inner wall of the fixed shell (201). The outer walls of the two limiting sleeves (208) are respectively slidably connected with the inner walls of the two limiting grooves (209).

5. The detection device for a metal housing according to claim 4, wherein Two limiting rods (210) are respectively slidably installed in the inner walls of the two limiting sleeves (208). The two ends of the two limiting rods (210) are respectively fixedly connected with the inner walls of the two limiting grooves (209). Elastic members I (211) are respectively slidably installed on the outer walls of the two limiting rods (210). The two ends of the two elastic members I (211) are respectively fixedly connected with the lower inner wall of the limiting groove (209) and the bottom surface of the limiting sleeve (208).

6. The detection device for a metal housing according to claim 5, wherein Two grooves (212) are formed in the outer wall of the fixed shell (201). A plurality of fixing strips (213) are fixedly installed on the outer wall of the rotating shaft (106). The other ends of the plurality of fixing strips (213) are respectively fixedly installed with pressing plates (214). The outer wall of the pressing plate (214) is slidably connected to the top surface of the pressing cover (207).

7. The detection device for a metal housing according to claim 1, characterized in that, A fixing block (301) is fixedly installed on the outer wall of the fixed shell (201). The side surface of the fixing block (301) is rotatably connected to the middle side surface of the rotating strip (303) through a connecting shaft (302). The brush bristles (304) are slidably connected to the side surface of the filter plate (206). A connecting sleeve (306) is fixedly installed on the side surface of the rotating strip (303).

8. A detection device for a metal housing according to claim 7, characterized in that, An arc-shaped groove (305) is formed in the side surface of the fixing block (301). The inner wall of the arc-shaped groove (305) is slidably connected to the outer wall of the connecting sleeve (306). An arc-shaped rod (307) is slidably installed in the inner wall of the connecting sleeve (306). Both ends of the arc-shaped rod (307) are fixedly connected to the inner wall of the arc-shaped groove (305). An elastic member II (308) is slidably installed on the outer wall of the arc-shaped rod (307). Both ends of the elastic member II (308) are respectively fixedly connected to one side inner wall of the arc-shaped groove (305) and the side surface of the connecting sleeve (306).

9. The detection device for a metal housing according to claim 8, characterized in that, Two sliding rods (309) are fixedly installed on the top surface of the fixing block (301). A moving plate (310) is slidably installed on the outer walls of the two sliding rods (309). A sliding groove (312) is formed in the side surface of the moving plate (310). The inner wall of the sliding groove (312) is slidably connected to the outer wall of the cylinder (313). Round blocks (311) are fixedly installed at the upper ends of the two sliding rods (309).

10. The detection device for a metal shell according to claim 9, characterized in that, A pressing strip (314) is fixedly installed on the side surface of the pressing cover (207). The lower end of the pressing strip (314) is movably connected to the top surface of the moving plate (310). A through groove (315) is formed through the side surface of the fixed shell (201). The inner wall of the through groove (315) is slidably connected to the side surface of the pressing strip (314).

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