A surface spraying pre-treatment device for piston production

Abstract

The present invention is directed to the technical field of piston surface treatment, specifically a surface spraying pre-treatment device for piston production, comprising a surface treatment unit, the surface treatment unit comprising a plurality of sandblasting components; a feeding unit for conveying a workpiece to be treated; a surface detection unit disposed on the upper portion of the feeding unit, a plurality of transfer units, the transfer units comprising a fixed component and a lifting component for moving the fixed component; the sandblasting component comprising a nozzle module; and a controller disposed within the control box. During the metal plating pre-treatment of the piston, the present invention performs surface treatment on the piston skirt area to increase the adhesion of the coating, limit the position and area of ​​the surface treatment area, facilitate surface treatment according to the actual designed position and area of ​​the coating area, and avoid large-area treatment affecting the performance of the piston; at the same time, the device has the function of detecting the machining dimensions of the piston ring groove; in some embodiments, the outer diameter of the piston can also be detected.

Description

Technical Field

[0001] The invention relates to the technical field of piston surface treatment, in particular to a surface spraying pre-treatment device for piston production. Background Art

[0002] Since the working conditions of the piston in the internal combustion engine are very harsh, it needs to withstand the impact load of high temperature and high pressure, and is extremely prone to wear; common wear includes piston ring groove wear and piston skirt wear; therefore, the piston surface needs to be tinned, sprayed with molybdenum disulfide, and sprayed with graphite to enhance the performance of the piston; sprayed molybdenum disulfide is often used to improve the surface performance of the piston skirt, and its spraying area is also limited to the piston skirt area; before spraying the coating, the surface needs to be pre-treated to remove oil stains and oxide scales on the piston surface, which can increase the adhesion of the coating. Common methods include mechanical and chemical methods, and sandblasting is a common mechanical treatment method.

[0003] In traditional sandblasting, there is no limit on the treatment area, and it is impossible to sandblast the designated area and area of ​​the piston skirt. Areas outside the skirt that do not need to be sprayed are also sanded, especially the ring groove. If the pressure of the sandblasting machine is too high, the ring groove is easily damaged, resulting in defective piston products. Summary of the Invention

[0004] The object of the present invention is to provide a surface spraying pre-treatment device for piston production to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a surface spraying pre-treatment device for piston production, comprising:

[0006] A surface treatment unit, used for sandblasting a workpiece, the surface treatment unit comprising a plurality of sandblasting components;

[0007] A feeding unit is used to transport the workpiece to be processed. The feeding unit is arranged on the upper part of the surface treatment unit. The feeding unit includes a part table on which a piston is placed and a horizontal conveying assembly for driving the part table to move horizontally.

[0008] A surface detection unit is provided on the upper part of the feeding unit, and the surface detection unit includes a propulsion component, a detection component and a light source component coordinated with the detection component;

[0009] Multiple transfer units, used to drive the workpiece to be processed to transfer between the feeding unit, the detection unit and the surface treatment unit, the transfer unit includes a fixed component and a lifting component for driving the fixed component to move;

[0010] The fixing assembly includes a clamping module, a limiting module and an air pressure assembly. The clamping module is used to clamp and measure the workpiece to be processed, and the limiting module is used to limit the shape and area of ​​the sandblasting area on the surface of the workpiece.

[0011] The clamping module includes multiple clamping modules and multiple laser ranging modules. The limiting module includes a connecting component, a limiting tool and multiple adjustment components. The limiting tool is connected to the adjustment component through the connecting component. The air pressure component is used to provide negative pressure and airflow required for cleaning.

[0012] The sandblasting assembly includes a nozzle module, a Z-axis module for driving the nozzle module to move up and down, and an X-axis module for controlling the feed distance of the nozzle module;

[0013] A control box is provided with a controller, and the controller is respectively connected to the surface treatment unit, the feeding unit, the surface detection unit and the transfer unit.

[0014] Preferably, it also includes a detection box, a conveying box, a sandblasting box and a recovery box arranged in sequence from top to bottom, the feeding unit is arranged in the conveying box, the surface detection unit is arranged in the detection box, the light source assembly includes a plurality of lighting lamps, the lighting lamps are arranged on the inner surface of the detection box, the lighting lamps are connected to the controller, the surface treatment unit is arranged in the sandblasting box, a partition is provided in the sandblasting box, and a plurality of connecting grooves are respectively provided in the detection box, the conveying box, the partition and the lower side of the sandblasting box; a nitrogen box is provided on one side of the sandblasting box, a nitrogen tank is provided in the nitrogen box, two air outlets are provided on the upper part of the nitrogen tank, and the two air outlets are respectively connected to an air supply valve and an air pressure sensor, the upper part of the air supply valve is connected to an air supply pipe, and a plurality of branch pipes are connected to the air supply pipe, and the branch pipes pass through the detection box, and the air supply valve and the air pressure sensor are connected to the controller.

[0015] Preferably, the nozzle module includes a fixed plate, an electric clamp, a connecting block nozzle and a sand inlet pipe, the electric clamp is connected to the front end of the fixed plate, the nozzle is connected to the electric clamp, one end of the sand inlet pipe is connected to the nozzle, the end of the sand inlet pipe away from the nozzle passes through the sandblasting box, and the connecting block is arranged at the end of the fixed plate away from the electric clamp; the X-axis module includes an X-axis electric cylinder and an X-axis bracket, the X-axis electric cylinder is connected to the lower part of the X-axis bracket; the Z-axis module includes a Z-axis electric cylinder, the Z-axis electric cylinder is arranged on the upper part of the partition, the lower part of the Z-axis electric cylinder passes through the partition and is connected to the upper part of the X-axis bracket, and the electric clamp, Z-axis electric cylinder and X-axis electric cylinder are respectively connected to the controller.

[0016] Preferably, the horizontal conveying assembly includes two linear motors and a slide, the two linear motors are arranged parallel to each other on the inner surface of the conveying box, the movers of the linear motors are connected to the slide, two limit slots are provided on the upper part of the slide, a distance sensor 1 is provided on one side of the linear motor, and the linear motor and the distance sensor 1 are respectively connected to the controller; the part table includes a center column and two side tables, the two side tables are respectively arranged on both sides of the center column, a placement groove is provided on the upper part of the side table, the center column is arranged between the two limit slots, and the lower part of the center column is connected to the slide.

[0017] Preferably, the propulsion assembly includes two slide rails, multiple slide seats and multiple pushing electric cylinders, the slide seat is slidably connected to the slide rails, the two slide rails are respectively arranged on both sides of the connecting groove, the lower part of the slide rail is connected to the inner surface of the detection box, the pushing electric cylinder is arranged on one side of the slide seat, one end of the pushing electric cylinder is connected to the slide seat, the lower part of the pushing electric cylinder is connected to the inner surface of the detection box, and the pushing electric cylinder is connected to the controller; a rotating electric cylinder is provided on the upper part of the slide seat, and a sealing disk is provided on the lower part of the slide seat, the size of the sealing disk matches the size of the connecting groove, the rotating electric cylinder is connected to the controller, the detection assembly includes a detection box, a fluorescence detector, a control assembly, a battery assembly and a plurality of CMOS photosensitive modules arranged inside the detection box, a detection hole matching the fluorescence detector is opened at one end of the detection box, and the control assembly includes a control chip, a storage module, The image processing chip, the wireless communication module and the interface module, the control chip are connected to the interface module and the storage module respectively, the image processing chip and the wireless communication module are connected to the interface module respectively, the battery assembly includes a storage battery and a charge and discharge module, the storage battery is connected to the charge and discharge module, the charge and discharge module is respectively connected to the CMOS photosensitive module, the fluorescence detector and the interface module, the control chip is connected to the controller, and the control chip is connected to the external host computer through the wireless communication module; the lifting assembly includes multiple lifting cylinders, multiple distance sensors and multiple connecting rods, the lifting cylinder is arranged at the upper part of the detection box, the lower part of the lifting cylinder passes through the detection box and is connected to the connecting rod, the distance sensor 2 is arranged on one side of the lifting cylinder, the lower part of the distance sensor passes through the detection box, the distance sensor 2 and the lifting cylinder are respectively connected to the controller.

[0018] Preferably, the clamping module includes an inner box unit, an outer box unit, a clamping part, a fixed plate, and a rotating unit, the lower side of the fixed plate is provided with a connecting ring groove 1 and a connecting ring groove 2 which respectively cooperate with the inner box unit and the outer box unit, the middle part of the fixed plate is provided with a parts groove, the surface of the fixed plate is provided with a plurality of air pipe slide grooves which cooperate with the air pressure component, the surface of the fixed plate is provided with a plurality of adjustment grooves which cooperate with the connecting component, the lower part of the fixed plate is provided with a plurality of guide slide grooves which cooperate with the clamping part; the inner box unit includes an inner box, a transmission gear ring 1 arranged on the outer side of the inner box, a plurality of sliding columns 1 arranged on the inner side of the inner box, and a plurality of sliding grooves 1 opened on the outer side of the inner box, the upper part of the inner box is provided with a connecting ring 1, the connecting ring 1 and the connecting ring groove 1 are slidably connected, and the longitudinal section of the connecting ring groove 1 is a T-shaped structure;

[0019] The outer box unit includes an outer box, a transmission gear ring 2 arranged on the inner side of the outer box, a plurality of sliding grooves 2 opened on the outer side of the outer box, and a plurality of slider columns 2 arranged on the inner side of the outer box. A connecting ring 2 is provided on the upper part of the outer box, and the connecting ring 2 is slidably connected with the connecting ring groove 2; the rotating unit includes a rotating motor, a rotating shaft, a gear 1 and a gear 2. The rotating motor is provided on the upper part of the fixed plate, the rotating shaft passes through the fixed plate and is connected to the rotating shaft, the gear 1 and the gear 2 are sequentially sleeved on the outer side of the rotating shaft, and the gear 1 and the transmission gear ring are One is meshed with the other, the gear two is meshed with the transmission gear ring two, and the rotating motor is connected to the controller; the clamping part includes a plurality of clamping boxes, an extrusion piece one arranged on the outside of the clamping box, a limit slider arranged on the upper part of the clamping box, a return spring and a plurality of buffer sheets arranged at one end of the limit slider, the limit slider is slidably connected to the guide slide groove, the end of the return spring away from the limit slider abuts against the inner wall of the guide slide groove, the extrusion piece one abuts against the sliding column one, and the extrusion piece one is slidably connected to the inner wall of the sliding groove one; the plurality of clamping boxes are evenly distributed Arranged on the inner side of the inner box; a clamping groove is provided on one side of the clamping box, and two air flow grooves are provided inside the clamping box, and the two air flow grooves are distributed on the upper and lower sides of the clamping groove. A plurality of through holes are provided on the surface of the clamping box corresponding to the position of the air flow groove, and a permanent magnet sheet is provided at one end of the clamping groove; an iron sheet is embedded in one end of the buffer sheet; a plurality of mounting grooves are provided on the surface of the clamping box close to the inner box, and one end of the mounting groove is connected to the clamping groove; the laser ranging module includes a laser distance sensor, a connection box slidably arranged in the mounting groove, a measuring box arranged on one side of the connection box, a light guide box arranged inside the connection box, a mounting box arranged on one side of the light guide box, and a plurality of protrusions arranged on the upper part of the connection box and an extrusion sheet 2 arranged on one side of the connection box, a guide bar is provided on the inner side of the mounting groove, a guide groove cooperating with the guide bar is provided, the laser distance sensor is arranged in the mounting box, and the side of the light guide box away from the mounting box is connected to the measuring box, the surface of the light guide box is coated with a light-shielding coating, and the laser distance sensor is connected to the controller.

[0020] Preferably, the laser ranging module further comprises a plurality of reflective components, wherein the reflective components comprise a plurality of reflective strips, wherein the reflective strips are used to reflect light and change the propagation path of the light; the cross-section of the reflective strip is an isosceles right triangle, the inclined surface of the reflective strip is set as a reflective surface, and the reflective surface of the reflective strip is coated with a reflective coating; the plurality of reflective strips are respectively arranged in different measuring boxes, and the reflective surfaces of the reflective strips in the plurality of measuring boxes face different directions, so that the lasers emitted by the plurality of laser distance sensors enter the measuring box through the light guide box, and the rays are emitted upward or downward after being reflected by the reflective strips.

[0021] Preferably, a plurality of the adjusting components are evenly distributed around the connecting slot on the upper surface of the fixed disk, the adjusting component includes a guide piece, a mounting piece and a plurality of electromagnets arranged in the mounting piece, and the electromagnet is connected to the controller; the connecting component includes two splints, a connecting arm arranged on the upper part of the splint, and a sliding column arranged at one end of the connecting arm, the sliding column is slidably connected to the adjustment slot, and the lower part of the connecting arm is respectively provided with a limiting groove 1 cooperating with the guide piece and a limiting groove 2 cooperating with the mounting piece, the inner side of the limiting groove 2 is provided with a permanent magnet block cooperating with the electromagnet, and the electromagnet is connected to the controller; the limiting tooling includes two side The cam is connected to the upper and lower plates of the second frame, and the cam is connected to the lower plate by a spring, and the cam is connected to the lower plate by a spring.

[0022] Preferably, the limiting tooling includes a front panel, a C-shaped frame and a rear frame, the two sides of the front panel are respectively connected to the two side panels, the front panel is provided with three sand inlet grooves cooperating with the C-shaped frame, one end of the C-shaped frame is connected to the surface of one side of the front panel, the end of the C-shaped frame away from the front panel is connected to the rear frame, and the lower edge of the rear frame is provided with multiple sand discharge holes.

[0023] Preferably, the air pressure component includes a connecting plate, an air distribution box arranged on the upper part of the connecting plate, and an air pump arranged on the upper part of the air distribution box, a plurality of connecting columns are provided at the lower part of the connecting plate, and the lower part of the connecting column is connected to the fixed plate; a plurality of air distribution valves are connected to the outer side of the air distribution box, one end of the air distribution valve is connected to an air distribution pipe, one end of the air distribution pipe downwardly passes through the connecting plate and extends into the air pipe groove, a connecting pipe is provided in the air pipe groove, the upper end of the connecting pipe is connected to the air distribution pipe, the lower end of the connecting pipe is connected to an air flow groove, and the air distribution pipe The air pump is connected to the air inlet pipe, the lower part of the air pump is connected to the air outlet pipe, the air outlet pipe is connected to the air distribution box, and the air valve is connected to the controller; the upper part of the connecting plate is provided with a pressure plate, the lower part of the pressure plate is provided with a plurality of connecting columns 2, the lower part of the connecting column 2 is connected to the connecting plate, the upper part of the pressure plate is provided with a connecting column, the upper part of the connecting column is connected to the connecting rod, the upper part of the air inlet pipe is connected to an extension pipe, and one end of the extension pipe passes through the pressure plate upward and is connected to the branch pipe.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] 1. In the present invention, the contact area between the sand and the piston surface can be limited by a limiting fixture. The angle between the two connecting arms can be adjusted by an adjustment assembly. The connecting arms drive the side plates to move, thereby adjusting the left and right width of the treatment area between the side plates. By adjusting the installation position of the upper and lower plates, the upper and lower heights of the treatment area can be adjusted to adjust the surface treatment area. The two connecting arms move simultaneously in one direction to adjust the position of the treatment area on the piston surface. The movement of the connecting arms is achieved by the adjustment assembly. Based on the principle of a linear motor, the electromagnet and permanent magnet block cooperate to drive the connecting arms to slide along the guide plate through magnetic force.

[0026] 2. In the present invention, the permanent magnet sheet absorbs the iron sheet inside the buffer sheet, thereby fixing one end of the buffer sheet to one end of the clamping box. The air pump is started by the controller, and the air distribution valve is opened to extract the air in the air flow groove, forming a negative pressure in the air flow groove. The buffer sheet and the clamping box are tightly fitted by the effect of atmospheric pressure. The buffer sheet is connected to the clamping box in this way to facilitate the replacement of the buffer sheet. When the surface of the buffer sheet is used for a long time and wear occurs, or when oil and other pollutants are detected by a fluorescence detector, it is convenient for quick replacement. When replacing, it is only necessary to control the air pump to inflate the air flow groove, and the air flow is blown out from the through hole, and the buffer sheet is blown off by a larger air flow.

[0027] 3. In this invention, the installation of the clamping groove and the sliding installation of the clamping box and the measuring box facilitate the measurement of piston ring dimensions. The asynchronous movement of the clamping box and the measuring box leaves some space in the clamping groove, facilitating the placement of the piston ring placement box. In actual use, multiple fixed components can be installed, and one laser distance measurement module can be selected without a reflective component, so that the laser light emitted by the laser distance sensor can directly illuminate the piston ring surface and reflect to measure the piston ring's outer diameter.

[0028] 4. In the present invention, the exhaust valve is opened by the controller, and the air flow in the gas distribution box is blown downward. On the one hand, it can clean the surface of the clamping module. On the other hand, when sandblasting, the downward air flow is blown to the upper part of the piston, which can increase the air pressure on the upper part of the piston and reduce the metal debris generated during surface treatment from entering the upper part of the piston. When necessary, the nitrogen tank provides nitrogen to the air pump to form an inert gas environment around the piston, slowing down the oxidation rate of the sandblasting area of ​​the piston. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic diagram of the external structure of the present invention;

[0030] Figure 2 Schematic diagram of the internal structure of the present invention;

[0031] Figure 3 For the present invention Figure 2 A schematic diagram of the front structure of FIG.

[0032] Figure 4 This is a schematic diagram of the overall structure of the fixing assembly in Example 1 of the present invention;

[0033] Figure 5 For the present invention Figure 4 A schematic diagram of the front structure of FIG.

[0034] Figure 6 For the present invention Figure 4 A side structural diagram of

[0035] Figure 7 For the present invention Figure 4 Schematic diagram of the structure viewed from above;

[0036] Figure 8 For the present invention Figure 7 AA direction cross-sectional view;

[0037] Figure 9 This is a schematic diagram of the overall structure of the fixing assembly in the second embodiment of the present invention;

[0038] Figure 10 For the present invention Figure 9 A schematic diagram of the front structure of FIG.

[0039] Figure 11For the present invention Figure 9 A side structural diagram of

[0040] Figure 12 For the present invention Figure 9 Schematic diagram of the top view structure;

[0041] Figure 13 For the present invention Figure 12 BB direction cross-sectional view;

[0042] Figure 14 This is an exploded schematic diagram of the clamping module structure of the present invention;

[0043] Figure 15 For the present invention Figure 14 Schematic diagram of the top view structure;

[0044] Figure 16 For the present invention Figure 14 Schematic diagram of the structure viewed from above;

[0045] Figure 17 This is a schematic diagram of the restricting tooling structure in Example 1 of the present invention;

[0046] Figure 18 For the present invention Figure 17 Side view structural diagram;

[0047] Figure 19 This is a schematic structural diagram of the nozzle module of the present invention;

[0048] Figure 20 For the present invention Figure 19 A side structural diagram of

[0049] Figure 21 This is a top sectional view of the detection assembly installation structure of the present invention;

[0050] Figure 22 This is a schematic structural diagram of the horizontal conveying assembly of the present invention;

[0051] Figure 23 This is a schematic diagram of the assembly structure of the clamping part and the laser detection module of the present invention;

[0052] Figure 24 For the present invention Figure 2 A top view of

[0053] Figure 25 For the present invention Figure 23 Schematic diagram of the explosion structure;

[0054] Figure 26 This is a schematic diagram of the module connection principle of the present invention;

[0055] Figure 27 For the present invention Figure 8Enlarged structural diagram at point A in the middle.

[0056] In the figure: 1. surface treatment unit; 2. feeding unit; 202. horizontal conveying assembly; 3. surface detection unit; 301. propulsion assembly; 302. detection assembly; 303. light source assembly; 3031. lighting lamp; 4. transfer unit; 5. control box; 6. detection box; 7. conveying box; 8. sandblasting box; 9. recovery box; 10. partition; 11. sandblasting assembly; 12. connecting groove; 13. nitrogen tank; 14. air supply pipe; 15. branch pipe; 16. air pipe slide; 17. adjustment groove; 41. fixing assembly; 42. lifting assembly; 411. clamping module; 412. restriction module; 413. air pressure assembly; 4111. clamping module; 4112. laser ranging module; 4121. connection assembly; 4122. Restriction tooling; 4123, adjustment assembly; 111, nozzle module; 1111, fixing plate; 1112, electric gripper; 1113, connecting block; 1114, Z-axis electric cylinder; 1115, nozzle; 1116, sand inlet pipe; 1117, X-axis electric cylinder; 221, linear motor; 222, slide; 223, distance sensor 1; 211, center column; 212, side table; 213, limit slot; 311, slide rail; 312, slide 2; 313, push electric cylinder; 314, rotating electric cylinder; 321, detection box; 322, fluorescence detector; 323, CMOS photosensitive module; 421, lifting electric cylinder; 422, distance sensor 2; 423, connecting rod; 41111, inner box unit; 41112, outer Box unit; 41113, clamping part; 41114, fixed plate; 41115, rotating unit; 18, inner box; 19, transmission gear ring 1; 20, sliding column 1; 21, parts table; 211, center column; 212, side table; 22, connecting ring 1; 23, connecting ring groove 1; 24, outer box; 25, transmission gear ring 2; 26, connecting ring 2; 27, connecting ring groove 2; 28, rotating motor; 29, rotating shaft; 30, gear 1; 31, gear 2; 32, clamping box; 33, extrusion plate 1; 34, limit slider; 35, reset spring; 36, buffer plate; 37, clamping groove; 38, air flow groove; 39, permanent magnet; 41121, connecting box; 41122, measuring box; 41123, light guide box; 41124. Mounting box; 41125. Extrusion plate 2; 41126. Reflective strip; 41231. Guide plate; 41232. Mounting plate; 41233. Electromagnet; 41211. Clamp; 41212. Connecting arm; 41221. Side panel; 41222. Upper panel; 41223. Lower panel; 41224. Sliding baffle 1; 41225. Sliding baffle 2; 41226. Front panel; 41227. C-shaped frame; 41228. Rear frame; 4131. Connecting plate; 4132. Gas distribution box; 4133. Air pump; 4134. Connecting column; 4135. Gas distribution valve; 4136. Gas distribution pipe; 4137. Inlet pipe; 4138. Exhaust pipe; 4139. Connecting column 2; 4130. Pressure plate. DETAILED DESCRIPTION

[0057] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0058] In the description of the present invention, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0059] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "mounted / connected," and "connected" should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in the present invention in specific circumstances.

[0060] Example 1: Please refer to Figure 1-27 The present invention provides a technical solution: a surface spraying pre-treatment device for piston production, comprising: a surface treatment unit 1, a feeding unit 2, a surface detection unit 3, a transfer unit 4, a control box 5, a controller inside the control box 5, a detection box 6, a conveying box 7, a sandblasting box 8 and a recovery box 9.

[0061] The surface treatment unit 1 is used for sandblasting the workpiece and includes a plurality of sandblasting components 11; the feeding unit 2 is used for conveying the workpiece to be processed and is installed on the upper part of the surface treatment unit 1. The feeding unit 2 includes a part table 21 for placing a piston and a horizontal conveying component 202 for driving the part table 21 to move horizontally; the surface inspection unit is installed on the upper part of the feeding unit 2 and includes a propulsion component 301, a detection component 302 and a light source component 303 cooperating with the detection component 302; the transfer unit 4 includes a fixing component 41 and a lifting component 42 for driving the fixing component 41 to move; the fixing component 41 includes a clamping module 411, a limiting module 412 and an air pressure component 413. The clamping module 411 is used to clamp and measure the workpiece to be processed, and the limiting module 412 and the air pressure component 413 The mold making group 412 is used to limit the shape and blasting area of ​​the sandblasting area on the workpiece surface; the clamping module 411 includes multiple clamping modules 4111 and multiple laser ranging modules 4112, and the limiting module 412 includes a connecting component 4121, a limiting tooling 4122 and multiple adjustment components 4123; the limiting tooling 4122 is connected to the adjustment component 4123 through the connecting component 4121; the air pressure component 413 is used to provide negative pressure and the airflow required for cleaning; the sandblasting component 11 includes a nozzle module 111, a Z-axis module for driving the nozzle module 111 to move up and down, and an X-axis module for controlling the feed distance of the nozzle module 111; the controller is respectively connected to the surface treatment unit 1, the feeding unit 2, the surface detection unit 3 and the transfer unit 4.

[0062] The feeding unit 2 is installed in the conveying box 7, the surface detection unit 3 is installed in the detection box 6, the light source assembly 303 includes multiple lighting lamps 3031, the lighting lamps 3031 are installed on the inner surface of the detection box 6, and the lighting lamps 3031 are connected to the controller. The surface treatment unit 1 is installed in the sandblasting box 8, and a partition 10 is installed in the sandblasting box 8. A plurality of connecting grooves 12 are respectively provided in the detection box 6, the conveying box 7 and the partition 10; a nitrogen box is installed on one side of the sandblasting box 8, and a nitrogen tank 13 is installed in the nitrogen box. Two air outlets are installed on the upper part of the nitrogen tank 13, and the two air outlets are respectively connected to an air supply valve and an air pressure sensor, and the upper part of the air supply valve is connected to an air supply pipe 14, and the air supply pipe 14 is connected to a plurality of branch pipes 15, and the branch pipes 15 pass through the detection box 6, and the air supply valve and the air pressure sensor are connected to the controller.

[0063] The nozzle module 111 includes a fixed plate 1111, an electric clamp 1112, a connecting block 1113, a nozzle 1115 and a sand inlet pipe 1116. The electric clamp 1112 is connected to the front end of the fixed plate 1111, the nozzle 1115 is connected to the electric clamp 1112, one end of the sand inlet pipe 1116 is connected to the nozzle 1115, and the end of the sand inlet pipe 1116 away from the nozzle 1115 passes through the sand blasting box 8. The connecting block 1113 is mounted on the fixed plate 1111. 11 is away from one end of the electric gripper 1112; the X-axis module includes an X-axis electric cylinder 1117 and an X-axis bracket, and the X-axis electric cylinder 1117 is connected to the lower part of the X-axis bracket; the Z-axis module includes a Z-axis electric cylinder 1114, and the Z-axis electric cylinder 1114 is installed on the upper part of the partition 10, and the lower part of the Z-axis electric cylinder 1114 passes through the partition 10 and is connected to the upper part of the X-axis bracket, and the electric gripper 1112, the Z-axis electric cylinder 1114 and the X-axis electric cylinder 1117 are respectively connected to the controller.

[0064] The horizontal conveying assembly 202 includes two linear motors 221 and a slide 222. The two linear motors 221 are installed parallel to each other on the inner surface of the conveying box 7. The mover of the linear motor 221 is connected to the slide 222. Two limit slots 213 are provided on the upper part of the slide 222. A distance sensor 223 is installed on one side of a linear motor 221. The linear motor 221 and the distance sensor 223 are respectively connected to the controller; the part table 21 includes a central column 211 and two side tables 212. The two side tables 212 are respectively installed on both sides of the central column 211. A placement groove is provided on the upper part of the side table 212. The central column 211 is installed between the two limit slots 213. The lower part of the central column 211 is connected to the slide 222. The propulsion assembly 301 includes two slide rails 311, multiple slide seats 312 and multiple push cylinders 313. The slide seat 312 is slidably connected to the slide rails 311. The two slide rails 311 are respectively installed on both sides of the connecting groove 12. The lower part of the slide rail 311 is connected to the inner surface of the detection box 6. The push cylinder 313 is installed on one side of the slide seat 312. One end of the push cylinder 313 is connected to the slide seat 312. The lower part of the push cylinder 313 is connected to the inner surface of the detection box 6. The cylinder is connected to the controller. The upper part of the slide 312 is equipped with a rotating electric cylinder 314, and the lower part of the slide 312 is equipped with a sealing disk 315. The size of the sealing disk 315 matches the size of the connecting groove 12. The rotating electric cylinder 314 is connected to the controller. The detection component 302 includes a detection box 321, a fluorescence detector 322, a control component, a battery component and a plurality of CMOS photosensitive modules 323 installed inside the detection box 321. One end of the detection box 321 is provided with a detection port that cooperates with the fluorescence detector 322. Hole measurement, the control component includes a control chip, a storage module, an image processing chip, a wireless communication module and an interface module. The control chip is connected to the interface module and the storage module respectively, and the image processing chip and the wireless communication module are connected to the interface module respectively. The battery component includes a storage battery and a charge and discharge module. The storage battery is connected to the charge and discharge module. The charge and discharge module is connected to the CMOS photosensitive module 323, the fluorescence detector 322 and the interface module respectively. The control chip is connected to the controller, and the control chip is connected to the external host computer through the wireless communication module; the lifting component 42 includes multiple lifting cylinders 421, multiple distance sensors 422 and multiple connecting rods 423. The lifting cylinder 421 is installed on the upper part of the detection box 6, and the lower part of the lifting cylinder 421 passes through the detection box 6 and is connected to the connecting rod 423. The distance sensor 422 is installed on one side of the lifting cylinder 421, and the lower part of the distance sensor passes through the detection box 6. The distance sensor 422 and the lifting cylinder 421 are respectively connected to the controller.

[0065] The clamping module 4111 includes an inner box unit 41111, an outer box unit 41112, a clamping portion 41113, a fixed disk 41114, and a rotating unit 41115. The lower side of the fixed disk 41114 is provided with a connecting ring groove 1 23 and a connecting ring groove 2 27 which respectively cooperate with the inner box unit 41111 and the outer box unit 41112. A parts groove is provided in the middle of the fixed disk 41114. A plurality of air pipe grooves 16 which cooperate with the air pressure component 413 are provided on the surface of the fixed disk 41114. A plurality of adjustment grooves 17 which cooperate with the connecting component 4121 are provided on the surface of the fixed disk 41114. A plurality of guide grooves which cooperate with the clamping portion 41113 are provided on the lower part of the fixed disk 41114. 11 includes an inner box 18, a transmission gear ring 19 installed on the outside of the inner box 18, a plurality of sliding columns 20 installed on the inside of the inner box 18, and a plurality of sliding grooves 1 opened on the outside of the inner box 18. A connecting ring 22 is installed on the upper part of the inner box 18. The connecting ring 22 and the connecting ring groove 23 are slidably connected. The longitudinal section of the connecting ring groove 23 is a T-shaped structure. The outer box unit 41112 includes an outer box 24, a transmission gear ring 25 installed on the inside of the outer box 24, a plurality of sliding grooves 2 opened on the outside of the outer box 24, and a plurality of slider columns 2 installed on the inside of the outer box 24. A connecting ring 26 is installed on the upper part of the outer box 24. The connecting ring 26 is slidably connected to the connecting ring groove 27. The rotating unit 41115 includes a rotating motor 28, rotating shaft 29, gear 1 30 and gear 2 31, the rotating motor 28 is installed on the upper part of the fixed plate 41114, the rotating shaft 29 passes through the fixed plate 1111 and is connected to the rotating shaft 29, the gear 1 30 and gear 2 31 are sequentially sleeved on the outer side of the rotating shaft 29, the gear 1 30 is engaged with the transmission gear ring 19, the gear 2 31 is engaged with the transmission gear ring 25, and the rotating motor 28 is connected to the controller; the clamping part 41113 includes a plurality of clamping boxes 32, an extrusion piece 1 33 installed on the outer side of the clamping box 32, a limiting slider 34 installed on the upper part of the clamping box 32, a reset spring 35 and a plurality of buffer pieces 36 installed at one end of the limiting slider 34, the limiting slider 34 is slidably connected to the guide slide groove, and the reset The end of the spring 35 away from the limit slider 34 abuts against the inner wall of the guide slide groove, the extrusion piece 33 abuts against the sliding post 20, and the extrusion piece 33 is slidably connected to the inner wall of the sliding groove 1; multiple clamping boxes 32 are evenly distributed on the inner side of the inner box 18; a clamping groove 37 is opened on one side of the clamping box 32, and two air flow grooves 38 are opened inside the clamping box 32, and the two air flow grooves 38 are distributed on the upper and lower sides of the clamping groove 37. A plurality of through holes are opened on the surface of the clamping box 32 corresponding to the position of the air flow groove 38, and a permanent magnet piece 39 is installed at one end of the clamping groove 37; an iron sheet is embedded in one end of the buffer piece 36; a plurality of mounting grooves are opened on the surface of the clamping box 32 on the side close to the inner box 18, and one end of the mounting groove is connected to the clamping groove 37;Laser ranging module 4112 includes a laser distance sensor, a connection box 41121 slidably mounted within a mounting slot, a measuring box 41122 mounted on one side of connection box 41121, a light guide box 41123 mounted within connection box 41121, a mounting box 41124 mounted on one side of light guide box 41123, multiple bumps mounted on the top of connection box 41121, and a second extrusion piece 41125 mounted on one side of connection box 41121. A guide bar is mounted on the top of connection box 41121, and a guide groove is defined within the mounting slot to mate with the guide bar. The laser distance sensor is mounted within mounting box 41124. The side of light guide box 41123 facing away from mounting box 41124 is connected to measuring box 41122. The surface of light guide box 41123 is coated with a light-shielding coating. The laser distance sensor is connected to a controller.

[0066] The laser ranging module 4112 also includes multiple reflective components, which include multiple reflective strips 41126. The reflective strips 41126 are used to reflect light and change the propagation path of the light. The cross-section of the reflective strip 41126 is an isosceles right triangle, and the inclined surface of the reflective strip 41126 is installed as a reflective surface. The reflective surface of the reflective strip 41126 is coated with a reflective coating. The multiple reflective strips 41126 are respectively installed in different measuring boxes 41122, and the reflective surfaces of the reflective strips 41126 in the multiple measuring boxes 41122 face different directions, so that the lasers emitted by the multiple laser distance sensors enter the measuring box 41122 through the light guide box 41123, and the rays are reflected by the reflective strips 41126 and emitted upward or downward.

[0067] The plurality of adjustment components 4123 are evenly distributed around the connecting groove on the upper surface of the fixed disk 41114, and the adjustment component 4123 includes a guide piece 41231, a mounting piece 41232 and a plurality of electromagnets 41233 installed in the mounting piece 41232, and the electromagnet 41233 is connected to the controller; the connecting component 4121 includes two clamping plates 41211, a connecting arm 41212 installed on the upper part of the clamping plate 41211, and a sliding column installed at one end of the connecting arm 41212, the sliding column is slidably connected to the adjustment groove 17, and the lower part of the connecting arm 41212 is respectively provided with a limiting groove 213 one cooperating with the guide piece 41231 and a limiting groove 213 two cooperating with the mounting piece 41232, and a permanent magnet block cooperating with the electromagnet 41233 is installed on the inner side of the limiting groove 213 two, and the electromagnet 41233 is connected to the controller; the limiting tooling 4122 includes two side plates 41221, an upper plate 4 1222, lower plate 41223, two sliding baffles 1 41224 and a sliding baffle 2 41225 that cooperates with the sliding baffle 1 41224, one end of the side plate 41221 is connected to the clamping plate 41211, and the upper and lower sides of one side plate 41221 are respectively provided with a first coupling groove and a second coupling groove that cooperate with the upper plate 41222 and the lower plate 41223. The two sliding baffles 41224 are connected at one end to a side plate 41221, and the sliding baffle 2 41225 is slidably installed between the two sliding baffles 41224. The end of the sliding baffle 2 41225 away from the sliding baffle 1 41224 is connected to a side plate 41221. A sand inlet trough 1 is provided on one side of the sliding baffle 1 41224, and a sand inlet trough 2 is provided on one side of the sliding baffle 2 41225.

[0068] The air pressure assembly 413 includes a connecting plate 4131, an air distribution box 4132 installed on the upper part of the connecting plate 4131, and an air pump 4133 installed on the upper part of the air distribution box 4132. A plurality of connecting columns 4134 are installed on the lower part of the connecting plate 4131, and the lower part of the connecting column 4134 is connected to the fixed plate 41114; a plurality of air distribution valves 4135 are connected to the outer side of the air distribution box 4132, and one end of the air distribution valve 4135 is connected to the air distribution pipe 4136. The air distribution pipe 4136 is connected to the fixed plate 41114. One end of 136 extends downward through the connecting plate 4131 and extends into the tracheal chute 16. A connecting pipe is installed in the tracheal groove. The upper end of the connecting pipe is connected to the air distribution pipe 4136. The lower end of the connecting pipe is connected to an air flow groove 38. The air distribution pipe 4136 is a bellows. The air distribution valve 4135 is connected to the controller; the upper part of the air pump 4133 is connected to the air inlet pipe 4137, the lower part of the air pump 4133 is connected to the air outlet pipe, the air outlet pipe is connected to the air distribution box 4132, and the air distribution valve 4135 is connected to the controller. 135 is connected to the controller; an exhaust pipe 4138 is installed at the lower part of the gas distribution box 4132, and an exhaust valve is connected to the upper part of the exhaust pipe 4138, and the exhaust valve is connected to the controller; the exhaust valve is opened by the controller, and the air flow in the gas distribution box 4132 is blown downward. On the one hand, it can clean the surface of the clamping module 411. On the other hand, when sandblasting, the downward air flow blows to the upper part of the piston, which can increase the air pressure on the upper part of the piston and reduce the metal debris generated during surface treatment from entering the upper part of the piston; a pressure plate 4130 is installed at the upper part of the connecting disk 4131, and a plurality of connecting columns 4139 are installed at the lower part of the pressure plate 4130. The lower part of the connecting column 4139 is connected to the connecting disk 4131, and a connecting column 4134 is installed at the upper part of the pressure plate 4130. The upper part of the connecting column 4134 is connected to the connecting rod 423, and the upper part of the air inlet pipe 4137 is connected to an extension pipe, and one end of the extension pipe passes through the pressure plate 4130 upward and is connected to the branch pipe 15.

[0069] Example 2: Please refer to Figure 1-26 The present invention provides a surface spraying pre-treatment device for piston production, comprising: a surface treatment unit 1, a feeding unit 2, a surface detection unit 3, a transfer unit 4, a control box 5 and a controller arranged in the control box.

[0070] The surface treatment unit 1 is used for sandblasting the workpiece, and includes a plurality of sandblasting components 11; the feeding unit 2 for conveying the workpiece to be processed is installed on the upper part of the surface treatment unit 1, and includes a part table 21 for placing a piston and a horizontal conveying component 202 for driving the part table 21 to move horizontally; the surface inspection unit includes a propulsion component 301, a detection component 302 and a light source component 303 cooperating with the detection component 302; the transfer unit 4 is used to drive the workpiece to be processed to transfer between the feeding unit 2, the detection unit and the surface treatment unit 1, and includes a fixing component 41 and a lifting component 42 for driving the fixing component 41 to move; the fixing component 41 includes a clamping module 411, a limiting module 412 and an air pressure component 413, and the clamping module 411 is used to clamp and measure the workpiece to be processed The limiting module 412 is used to limit the shape and blasting area of ​​the sandblasting area on the workpiece surface; the clamping module 411 includes multiple clamping modules 4111 and multiple laser ranging modules 4112, and the limiting module 412 includes a connecting component 4121, a limiting tooling 4122 and multiple adjustment components 4123; the limiting tooling 4122 is connected to the connecting component 4121 through the connecting component 4121; the air pressure component 413 is used to provide negative pressure and the airflow required for cleaning; the sandblasting component 11 includes a nozzle module 111, a Z-axis module for driving the nozzle module 111 to move up and down, and an X-axis module for controlling the feeding distance of the nozzle module 111; a controller is installed in the control box 5, and the controller is respectively connected to the surface treatment unit 1, the feeding unit 2, the surface detection unit 3 and the transfer unit 4.

[0071] The feeding unit 2 is installed in the conveying box 7, the surface detection unit 3 is installed in the detection box 6, the light source assembly 303 includes multiple lighting lamps 3031, the lighting lamps 3031 are installed on the inner surface of the detection box 6, the lighting lamps 3031 are connected to the controller, the surface treatment unit 1 is installed in the sandblasting box 8, a partition 10 is installed in the sandblasting box 8, and multiple connecting grooves 12 are respectively opened in the detection box 6, the conveying box 7 and the partition 10; a nitrogen box is installed on one side of the sandblasting box 8, a nitrogen tank 13 is installed in the nitrogen box, two air outlets are installed on the upper part of the nitrogen tank 13, and the two air outlets are respectively connected to the air supply valve and the air pressure sensor, the upper part of the air supply valve is connected to the air supply pipe 14, and the air supply pipe 14 is connected to multiple branch pipes 15, the branch pipes 15 pass through the detection box 6, the air supply valve and the air pressure sensor are connected to the controller, and the nitrogen tank 13 is used to supply nitrogen to the air pump.

[0072] The nozzle module 111 includes a fixed plate 1111, an electric clamp 1112 and a connecting block 1113. The electric clamp 1112 is hinged to the front end of the fixed plate 1111, and the connecting block 1113 is installed at the end of the fixed plate 1111 away from the electric clamp 1112; the X-axis module includes an X-axis electric cylinder 1117 and an X-axis bracket. The X-axis electric cylinder 1117 is connected to the lower part of the X-axis bracket; the Z-axis module includes a Z-axis electric cylinder 1114. The Z-axis electric cylinder 1114 is installed on the upper part of the partition 10. The lower part of the Z-axis electric cylinder 1114 passes through the partition 10 and is connected to the upper part of the X-axis bracket. The electric clamp 1112, the Z-axis electric cylinder 1114 and the X-axis electric cylinder 1117 are respectively connected to the controller; in use, the nozzle 1115 is clamped by the electric clamp 1112, and the nozzle 1115 is connected to an external sandblasting machine.

[0073] The horizontal conveying assembly 202 includes two linear motors 221 and a slide 222. The two linear motors 221 are installed parallel to each other on the inner surface of the conveying box 7. The mover of the linear motor 221 is connected to the slide 222. Two limit slots 213 are provided on the upper part of the slide 222. A distance sensor 223 is installed on one side of a linear motor 221. The linear motor 221 and the distance sensor 223 are respectively connected to the controller; the part table 21 includes a central column 211 and two side tables 212. The two side tables 212 are respectively installed on both sides of the central column 211. A placement groove is provided on the upper part of the side table 212. The central column 211 is installed between the two limit slots 213. The lower part of the central column 211 is connected to the slide 222.

[0074] The propulsion assembly 301 includes two slide rails 311, multiple slide seats 312 and multiple push cylinders 313. The slide seats 312 are slidably connected to the slide rails 311. The two slide rails 311 are respectively installed on both sides of the connecting groove 12. The lower part of the slide rails 311 is connected to the inner surface of the detection box 6. The push cylinder 313 is installed on one side of the slide seat 222. One end of the push cylinder 313 is connected to the slide seat 222. The lower part of the push cylinder 313 is connected to the inner surface of the detection box 6. The cylinder is connected to the controller. The upper part of the slide 222 is equipped with a rotating electric cylinder 314, and the lower part of the slide 222 is equipped with a sealing disk 315. The size of the sealing disk 315 matches the size of the connecting groove 12. The rotating electric cylinder 314 is connected to the controller. The detection component 302 includes a detection box 321, a fluorescence detector 322, a control component, a battery component and a plurality of CMOS photosensitive modules 323 installed inside the detection box 321. One end of the detection box 321 is provided with a detection port that cooperates with the fluorescence detector 322. Hole measurement, the control component includes a control chip, a storage module, an image processing chip, a wireless communication module and an interface module. The control chip is connected to the interface module and the storage module respectively, and the image processing chip and the wireless communication module are connected to the interface module respectively. The battery component includes a storage battery and a charge and discharge module. The storage battery is connected to the charge and discharge module. The charge and discharge module is respectively connected to the CMOS photosensitive module 323, the fluorescence detector 322 and the interface module. The control chip is connected to the controller, and the control chip is connected to the external host computer through the wireless communication module; the lifting component 42 includes multiple lifting cylinders 421, multiple distance sensors 422 and multiple connecting rods 423. The lifting cylinder 421 is installed on the upper part of the detection box 6, and the lower part of the lifting cylinder 421 passes through the detection box 6 and is connected to the connecting rod 423. The distance sensor is installed on one side of the lifting cylinder 421, and the lower part of the distance sensor passes through the detection box 6. The distance sensor 422 and the lifting cylinder 421 are respectively connected to the controller.

[0075] The clamping module 4111 includes an inner box unit 41111, an outer box unit 41112, a clamping portion 41113, a fixed disk 41114, and a rotating unit 41115. The lower side of the fixed disk 41114 is provided with a connecting ring groove 1 23 and a connecting ring groove 2 27 that respectively cooperate with the inner box unit 41111 and the outer box unit 41112. The middle of the fixed disk 41114 is provided with a parts groove. The surface of the fixed disk 41114 is provided with a plurality of air pipe grooves 16 that cooperate with the air pressure component 413. The surface of the fixed disk 41114 is provided with a plurality of adjustment grooves 17 that cooperate with the connecting component 4121. The lower part of the fixed disk 41114 is provided with a plurality of guide grooves that cooperate with the clamping portion 41113. Slide groove; The inner box unit 41111 includes an inner box 18, a transmission gear ring 19 installed on the outside of the inner box 18, a plurality of sliding columns 20 installed on the inside of the inner box 18, and a plurality of sliding grooves 1 opened on the outside of the inner box 18. A connecting ring 22 is installed on the upper part of the inner box 18. The connecting ring 22 and the connecting ring groove 23 are slidably connected. The longitudinal section of the connecting ring groove 23 is a T-shaped structure; the outer box unit 41112 includes an outer box 24, a transmission gear ring 25 installed on the inside of the outer box 24, a plurality of sliding grooves 2 opened on the outside of the outer box 24, and a plurality of slider columns 2 installed on the inside of the outer box 24. A connecting ring 26 is installed on the upper part of the outer box 24. The connecting ring 26 and the connecting ring groove 27 are connected. Sliding connection; the rotating unit 41115 includes a rotating motor 28, a rotating shaft 29, a gear 1 30 and a gear 2 31. The rotating motor 28 is installed on the upper part of the fixed plate 41114. The rotating shaft 29 passes through the fixed plate 1111 and is connected to the rotating shaft 29. The gear 1 30 and the gear 2 31 are sequentially sleeved on the outer side of the rotating shaft 29. The gear 1 30 is engaged with the transmission gear ring 19, and the gear 2 31 is engaged with the transmission gear ring 25. The rotating motor 28 is connected to the controller; the clamping part 41113 includes a plurality of clamping boxes 32, an extrusion sheet 1 33 installed on the outer side of the clamping box 32, a limit slider 34 installed on the upper part of the clamping box 32, and a reset spring installed at one end of the limit slider 34. The spring 35 and multiple buffer sheets 36, the limit slider 34 is slidably connected to the guide slide groove, the end of the return spring 35 away from the limit slider 34 abuts against the inner wall of the guide slide groove, the extrusion sheet 1 33 abuts against the sliding column 1 20, and the extrusion sheet 1 33 is slidably connected to the inner wall of the sliding groove 1; multiple clamping boxes 32 are evenly distributed on the inner side of the inner box 18; a clamping groove 37 is opened on one side of the clamping box 32, and two air flow grooves 38 are opened inside the clamping box 32, and the two air flow grooves 38 are distributed on the upper and lower sides of the clamping groove 37. A plurality of through holes are opened on the surface of the clamping box 32 corresponding to the position of the air flow groove 38, and a permanent magnet sheet 39 is installed at one end of the clamping groove 37; an iron sheet is embedded at one end of the buffer sheet 36;

[0076] A plurality of mounting grooves are provided on a surface of one side of the clamping box 32 close to the inner box 18, and one end of the mounting groove is connected to the clamping groove 37; the laser ranging module 4112 includes a laser distance sensor, a connecting box 41121 slidably installed in the mounting groove, a measuring box 41122 installed on one side of the connecting box 41121, a light guide box 41123 installed inside the connecting box 41121, a mounting box 41124 installed on one side of the light guide box 41123, a plurality of protrusions installed on the upper part of the connecting box 41121, and an extrusion piece 2 41125 installed on one side of the connecting box 41121, a guide bar is installed on the upper part of the connecting box 41121, a guide groove matching the guide bar is provided on the inner side of the mounting groove, the laser distance sensor is installed in the mounting box 41124, the side of the light guide box 41123 away from the mounting box 41124 is connected to the measuring box 41122, the surface of the light guide box 41123 is coated with a light-shielding coating, and the laser distance sensor is connected to the controller.

[0077] A plurality of adjustment components 4123 are evenly distributed around the connecting groove on the upper surface of the fixed disk 41114, and the adjustment component 4123 includes a guide piece 41231, a mounting piece 41232 and a plurality of electromagnets 41233 mounted in the mounting piece 41232, and the electromagnet 41233 is connected to the controller; the connecting component 4121 includes two clamping plates 41211, a connecting arm 41212 mounted on the upper part of the clamping plate 41211, and a sliding column mounted on one end of the connecting arm 41212, the sliding column is slidably connected to the adjustment groove 17, and the lower part of the connecting arm 41212 is respectively provided with a limit groove 213 cooperating with the guide piece 41231 and a limit groove 213 cooperating with the mounting piece 41232. The second limiting slot 213 is provided with a permanent magnet block cooperating with the electromagnet 41233 on the inner side of the limiting slot 213, and the electromagnet 41233 is connected to the controller; the limiting tooling 4122 includes a front panel 41226, a C-shaped frame 41227 and a rear frame 41228, the two sides of the front panel 41226 are respectively connected to the two side panels 41221, the front panel 41226 is provided with a sand inlet groove 3 cooperating with the C-shaped frame 41227, one end of the C-shaped frame 41227 is connected to the surface of one side of the front panel 41226, and the end of the C-shaped frame 41227 away from the front panel 41226 is connected to the rear frame 41228, and the lower edge of the rear frame 41228 is provided with multiple sand discharge holes.

[0078] The air pressure assembly 413 includes a connecting plate 4131, an air distribution box 4132 installed on the upper part of the connecting plate 4131, and an air pump 4133 installed on the upper part of the air distribution box 4132. A plurality of connecting columns 4134 are installed on the lower part of the connecting plate 4131, and the lower part of the connecting column 4134 is connected to the fixed plate 41114; a plurality of air distribution valves 4135 are connected to the outer side of the air distribution box 4132, and one end of the air distribution valve 4135 is connected to the air distribution pipe 4136. The air distribution pipe 4136 is connected to the fixed plate 41114. One end of 136 extends downward through the connecting plate 4131 and extends into the trachea chute 16. A connecting pipe is installed in the trachea groove. The upper end of the connecting pipe is connected to the air distribution pipe 4136. The lower end of the connecting pipe is connected to an air flow groove 38. The air distribution pipe 4136 is a bellows. The air distribution valve 4135 is connected to the controller; the upper part of the air pump 4133 is connected to the air inlet pipe 4137, the lower part of the air pump 4133 is connected to the air outlet pipe, the air outlet pipe is connected to the air distribution box 4132, and the air distribution valve 4135 is connected to the controller; an exhaust pipe 4138 is installed at the lower part of the gas distribution box 4132, and an exhaust valve is connected to the upper part of the exhaust pipe 4138, and the exhaust valve is connected to the controller; the exhaust valve is opened by the controller, and the air flow in the gas distribution box 4132 is blown downward. On the one hand, it can clean the surface of the clamping module 411. On the other hand, when sandblasting, the downward air flow blows to the upper part of the piston, which can increase the air pressure on the upper part of the piston and reduce the metal debris generated during surface treatment from entering the upper part of the piston; a pressure plate 4130 is installed at the upper part of the connecting disk 4131, and a plurality of connecting columns 4139 are installed at the lower part of the pressure plate 4130. The lower part of the connecting column 4139 is connected to the connecting disk 4131, and a connecting column 4134 is installed at the upper part of the pressure plate 4130. The upper part of the connecting column 4134 is connected to the connecting rod 423, and an extension pipe is connected to the upper part of the air inlet pipe 4137. One end of the extension pipe passes through the pressure plate 4130 upward and is connected to the branch pipe 15.

[0079] Working principle: In the inspection box 6, the surface of the clamping module 411 can be inspected; specifically, when inspecting the surface of the clamping module 411, the surface of the buffer plate 36 and the surface of the parts in contact with the piston surface in the limiting tooling 4122 can be inspected for oil stains and dimensional changes. During the dimensional detection process, the light emitted by the lighting lamp passes through the limiting tooling 4122 and then shines on the CMOS photosensitive module 323. By measuring the photosensitive area, it is detected whether the size of the limiting tooling 4122 has changed.

[0080] Taking the limiting fixture 4122 in some embodiments as an example, the detection box 321 is pushed to the lower side of the clamping module 411 by pushing the electric cylinder 313, and the connecting groove 12 is sealed by the sealing disk 315 to prevent light from entering the detection box 6. The lifting electric cylinder 421 drives the clamping module 411 to descend, and the limiting fixture 4122 is placed on the outside of the detection box 321 and contacts the surface of the detection box 321. At this time, the CMOS photosensitive module 323 inside the detection box 321 faces the rear frame 41228, and the lighting is turned on by the controller. Light passes through the rear frame 41228 and enters the detection box 321. The CMOS photosensitive module 323 senses light and transmits the obtained image to the host computer through the image processing chip via the wireless transmission module. The photosensitive area is calculated, and then the inner size of the rear frame 41228 is calculated. The inner surface of the rear frame 41228 is detected to see if it is worn due to the impact of sanding. This avoids the use of the worn limiting tooling 4122, which causes the limiting area to change. As a result, the area of ​​the processing area changes during surface processing, affecting the processing quality.

[0081] The permanent magnet sheet 39 absorbs the iron sheet inside the buffer sheet 36, thereby fixing one end of the buffer sheet 36 to one end of the clamping box 32. The air pump 4133 is started by the controller, and the air distribution valve 4135 is opened to extract the air in the air flow groove 38, forming a negative pressure in the air flow groove 38, and the buffer sheet 36 is tightly fitted to the clamping box 32 by the effect of atmospheric pressure. The buffer sheet 36 is connected to the clamping box 32 in this way to facilitate the replacement of the buffer sheet 36. When the surface of the buffer sheet 36 is used for a long time and wear occurs, or when oil or other pollutants are detected by the fluorescence detector 322, it is convenient for quick replacement. When replacing, it is only necessary to control the air pump 4133 to inflate the air flow groove 38, and the air flow is blown out from the through hole, and the buffer sheet 36 is blown off by a larger air flow.

[0082] After the inspection of the limiting tool 4122 is completed, the piston to be processed is placed on the central column 211, so that the two side platforms 212 pass through the middle position of the two skirts, and the lower end of the skirt is exactly located in the placement groove. The placement groove installed on the upper part of the side platform 212 can be used to place the piston ring;

[0083] The controller controls the two linear motors 221 to start, drive the slide 222 to move, and measures the position of the slide 222 through the distance sensor 1 223. The position information is transmitted to the controller so that the controller can control the moving position of the slide 222. When the piston moves to the lower part of the clamping module 4111, the linear motor 221 stops working, and the controller controls the lifting cylinder 421 to extend, driving the clamping module 4111 to move downward. The distance sensor 2 422 measures the descending distance of the pressure plate 4130, and the measured distance information is transmitted to the controller so that the controller can control the descending distance of the clamping module 4111, thereby ensuring that the measuring box 41122 corresponds to the ring groove at the bottom of the piston ring groove. At this time, the controller controls the rotating motor 28 to rotate, and the rotating motor 2 8 drives the rotating shaft 29 to rotate, the rotating shaft 29 drives gear 1 30 and gear 2 31 to rotate, gear 1 30 and gear 2 31 respectively drive the transmission ring gear 1 19 and the transmission ring gear 2 25 to rotate, the rotation of the transmission ring gear 19 drives the inner box 18 to rotate, and the rotation of the transmission gear 2 31 drives the outer box 24 to rotate, the rotation directions of the transmission ring gear 19 and the transmission ring gear 2 25 are opposite, the gear ratio of gear 1 30 and transmission gear 1 30 is different from the gear ratio of gear 2 31 and transmission gear 2 31, so that the rotation speeds of the inner box 18 and the outer box 24 are different.

[0084] Specifically, the rotation of the outer box 24 drives the second sliding column inside it to rotate, thereby squeezing the second squeezing piece 41125. After being squeezed, the second squeezing piece 41125 drives the connecting box 41121 to move toward the piston. The connecting box 41121 drives the measuring box 41122 to move, and the distance sensor moves along with the installation box 41124.

[0085] The rotation of the inner box 18 drives the sliding column 20 inside it to move, thereby squeezing the squeezing piece 33. After being squeezed, the squeezing piece 33 drives the clamping box 32 to move closer to the piston. The clamping box 32 drives the buffer piece 36 at its front end to move closer to the piston surface.

[0086] In the setting of the gear ratio, it is ensured that the rotation speed of the inner box 18 is greater than the rotation speed of the outer box 24, so that the buffer plate 36 first contacts the piston surface and clamps the piston first. The buffer plate 36 is deformed when it is squeezed, thereby providing space for the measuring box 41122 to continue moving, allowing the measuring box 41122 to enter the annular groove; at the same time, it plays a good sealing role.

[0087] The laser distance sensor is activated by the controller. The lasers emitted by multiple laser distance sensors are reflected and emitted from the upper and lower sides of the measuring box 41122 respectively, irradiating the upper and lower surfaces of the ring groove and then reflecting. The measured distance information is transmitted to the controller. After processing by the controller, the width of the ring groove can be calculated, and then whether the processing of the ring groove is qualified can be detected.

[0088] The installation of clamping groove 37 and the sliding installation of clamping box 32 and measuring box 41122 facilitate the measurement of piston ring dimensions. The asynchronous movement of clamping box 32 and measuring box 41122 leaves some space within clamping groove 37, facilitating the placement of the piston ring placement box. In actual use, when multiple fixing assemblies 41 are installed, one laser distance measurement module 4112 can be selected without a reflective component, allowing the laser light emitted by the laser distance sensor to directly illuminate the piston ring surface and reflect, thereby measuring the piston ring's outer diameter.

[0089] The lifting electric cylinder 421 is started by the controller to drive the qualified piston to pass through the connecting groove 12 into the sandblasting box 8 for sandblasting. The nozzle 1115 is clamped by the electric clamp 1112 and the nozzle 1115 is driven up and down by the Z-axis electric cylinder 1114. Under the cover of the limiting tooling 4122, the sprayed sand will only polish an area of ​​a certain area; in the second embodiment, that is, the restricted area of ​​the rear frame 41228, the nozzle 1115 is driven to move by the X-axis electric cylinder 1117 and the nozzle 1115 is inserted into the inner side of the C-shaped frame 41227.

[0090] The limiting tooling 4122 can limit the contact area between the sand and the piston surface. The angle between the two connecting arms 41212 can be adjusted by adjusting the assembly. The connecting arm 41212 drives the side plate 41221 to move, thereby adjusting the spacing between the side plates 41221 (that is, the left and right widths of the processing area). By adjusting the installation position of the upper plate 41222 and the lower plate 41223, the spacing between the upper plate 41222 and the lower plate 41223 (the upper and lower heights of the processing area) is adjusted to achieve adjustment of the surface treatment area.

[0091] The two connecting arms 41212 move in one direction at the same time to adjust the position of the processing area on the piston surface. The movement of the connecting arm 41212 is achieved through an adjustment component. According to the principle of the linear motor 221, the electromagnet 41233 and the permanent magnet block are combined to drive the connecting arm 41212 to slide along the guide plate 41231 through magnetic force.

[0092] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0093] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A surface spraying pre-treatment device for piston production, characterized by: include: A surface treatment unit (1) for performing sandblasting on a workpiece, the surface treatment unit (1) comprising a plurality of sandblasting components (11); A feeding unit (2) for conveying a workpiece to be processed, the feeding unit (2) being arranged on the upper portion of the surface treatment unit (1), the feeding unit (2) comprising a part table (21) on which a piston is placed and a horizontal conveying assembly (202) for driving the part table (21) to move horizontally; A surface detection unit (3) is arranged on the upper part of the feeding unit (2), and the surface detection unit (3) includes a propulsion component (301), a detection component (302), and a plurality of light source components (303) cooperating with the detection component (302); A plurality of transfer units (4) for realizing a transfer function of a workpiece to be processed between the feeding unit (2), the surface detection unit (3) and the surface treatment unit (1), wherein the transfer unit (4) comprises a fixed component (41) and a lifting component (42) for driving the fixed component (41) to move; The fixing assembly (41) comprises a clamping module (411), a limiting module (412) and an air pressure assembly (413), wherein the clamping module (411) is used to clamp and measure a workpiece to be processed, and the limiting module (412) is used to limit the shape and area of ​​the sandblasting region on the surface of the workpiece; The clamping module (411) includes a plurality of clamping modules (4111) and a plurality of laser distance measuring modules (4112); the limiting module (412) includes a connecting component (4121), a limiting tool (4122), and a plurality of adjusting components (4123); the limiting tool (4122) is connected to the adjusting component (4123) via the connecting component (4121); the air pressure component (413) is used to provide negative pressure and airflow required for cleaning; The sandblasting assembly (11) comprises a nozzle module (111), a Z-axis module for driving the nozzle module (111) to move up and down, and an X-axis module for controlling the distance of the nozzle module (111) in and out of the limiting tool (4122); A control box (5), wherein a controller is provided in the control box (5), and the controller is respectively connected to the surface treatment unit (1), the feeding unit (2), the surface detection unit (3) and the transfer unit (4); The clamping module (4111) comprises an inner box unit (41111), an outer box unit (41112), a clamping portion (41113), a fixed disk (41114), and a rotating unit (41115); a surface of the fixed disk (41114) is provided with a plurality of adjustment slots (17) that cooperate with the connecting assembly (4121); A plurality of adjustment components (4123) are evenly distributed around the parts slot on the upper surface of the fixed plate (41114), and the adjustment component (4123) includes a guide piece (41231), a mounting piece (41232), and a plurality of electromagnets (41233) disposed within the mounting piece (41232), wherein the electromagnets (41233) are connected to a controller; The connecting assembly (4121) comprises two clamping plates (41211), a connecting arm (41212) arranged on the upper part of the clamping plate (41211), and a sliding column arranged at one end of the connecting arm (41212); the sliding column is slidably connected to the adjustment slot (17); a limiting slot 1 cooperating with the guide piece (41231) and a limiting slot 2 cooperating with the mounting piece (41232) are respectively provided at the lower part of the connecting arm (41212); a permanent magnet block cooperating with the electromagnet (41233) is provided on the inner side of the limiting slot 2; and the electromagnet (41233) is connected to the controller; The limiting tooling (4122) comprises two side panels (41221), an upper panel (41222), a lower panel (41223), two sliding baffles (41224) and a sliding baffle (41225) cooperating with the sliding baffle (41224). One end of the side panel (41221) is connected to the clamping plate (41211). The upper and lower sides of one side panel (41221) are respectively provided with a first coupling groove and a second coupling groove cooperating with the upper panel (41222) and the lower panel (41223). The upper and lower sides of the other side panel (41221) are respectively provided with a first coupling groove and a second coupling groove cooperating with the upper panel (41222) and the lower panel (41223). They are respectively connected to the upper plate (41222) and the lower plate (41223), one end of each of the two sliding baffles (41224) is connected to a side plate (41221), the sliding baffle (41225) is slidably arranged between the two sliding baffles (41224), the end of the sliding baffle (41225) away from the sliding baffle (41224) is connected to a side plate (41221), a sand feed groove (1) is provided on one side of the sliding baffle (41224), and a sand feed groove (2) is provided on one side of the sliding baffle (41225).

2. A surface spraying pre-treatment device for piston production according to claim 1, characterized in that: The apparatus further comprises a detection box (6), a conveying box (7), a sandblasting box (8) and a recycling box (9) arranged in sequence from top to bottom, wherein the feeding unit (2) is arranged in the conveying box (7), the surface detection unit (3) is arranged in the detection box (6), the light source assembly (303) comprises a plurality of lighting lamps (3031), the lighting lamps (3031) are arranged on the inner surface of the detection box (6), and the lighting lamps (3031) are connected to a controller, the surface treatment unit (1) is arranged in the sandblasting box (8), a partition (10) is arranged in the sandblasting box (8), and a plurality of connecting grooves (12) are respectively provided in the detection box (6), the conveying box (7) and the partition (10); A nitrogen box is provided on one side of the sandblasting box (8), a nitrogen tank (13) is provided in the nitrogen box, two air outlets are provided on the upper part of the nitrogen tank (13), the two air outlets are respectively connected to an air supply valve and an air pressure sensor, the upper part of the air supply valve is connected to an air supply pipe (14), the air supply pipe (14) is connected to a plurality of branch pipes (15), the branch pipes (15) penetrate into the detection box (6), and the air supply valve and the air pressure sensor are connected to the controller.

3. The surface spraying pre-treatment device for piston production according to claim 2, characterized in that: The nozzle module (111) comprises a fixed plate (1111), an electric clamp (1112), a connecting block (1113), a nozzle (1115) and a sand inlet pipe (1116), wherein the electric clamp (1112) is connected to the front end of the fixed plate (1111), the nozzle (1115) is connected to the electric clamp (1112), one end of the sand inlet pipe (1116) is connected to the nozzle (1115), and the end of the sand inlet pipe (1116) away from the nozzle (1115) passes through the sand blasting box (8), and the connecting block (1113) is arranged on the fixed plate (1111). The fixed plate (1111) is away from one end of the electric clamp (1112); the X-axis module includes an X-axis electric cylinder (1117) and an X-axis bracket, and the X-axis electric cylinder (1117) is connected to the lower part of the X-axis bracket; the Z-axis module includes a Z-axis electric cylinder (1114), and the Z-axis electric cylinder (1114) is arranged on the upper part of the partition (10), and the lower part of the Z-axis electric cylinder (1114) passes through the partition (10) and is connected to the upper part of the X-axis bracket, and the electric clamp (1112), the Z-axis electric cylinder (1114) and the X-axis electric cylinder (1117) are respectively connected to the controller.

4. A surface spraying pre-treatment device for piston production according to claim 3, characterized in that: The horizontal conveying assembly (202) includes two linear motors (221) and a slide (222), the two linear motors (221) are arranged parallel to each other on the inner surface of the conveying box (7), the movers of the linear motors (221) are connected to the slide (222), the upper part of the slide (222) is provided with two limit slots (213), one side of one of the linear motors (221) is provided with a distance sensor (223), and the linear motor (221) and the distance sensor (223) are respectively connected to a controller; The part platform (21) comprises a central column (211) and two side platforms (212), wherein the two side platforms (212) are respectively arranged on both sides of the central column (211), a placement groove is opened on the upper part of the side platform (212), the central column (211) is arranged between the two limiting grooves (213), and the lower part of the central column (211) is connected to the slide seat (222).

5. The surface spraying pre-treatment device for piston production according to claim 4, characterized in that: The propulsion assembly (301) includes two slide rails (311), a plurality of slide seats (312) and a plurality of push electric cylinders (313). The slide seats (312) are slidably connected to the slide rails (311). The two slide rails (311) are respectively arranged on both sides of the connecting groove (12). The lower part of the slide rails (311) is connected to the inner surface of the detection box (6). The push electric cylinder (313) is arranged on one side of the slide seat (312). One end of (313) is connected to the second slide (312), the lower part of the pushing electric cylinder (313) is connected to the inner surface of the detection box (6), and the pushing electric cylinder (313) is connected to the controller; the upper part of the second slide (312) is provided with a rotating electric cylinder (314), and the lower part of the second slide (312) is provided with a sealing disk (315), the size of the sealing disk (315) matches the size of the connecting groove (12), and the rotating electric cylinder (314) is provided with a sealing disk (315). ) is connected to the controller, the detection component (302) includes a detection box (321), a fluorescence detector (322), a control component, a battery component and a plurality of CMOS photosensitive modules (323) arranged inside the detection box (321), one end of the detection box (321) is provided with a detection hole that cooperates with the fluorescence detector (322), the control component includes a control chip, a storage module, an image processing chip, a wireless communication module and an interface module, the control chip is respectively connected to the interface module and the storage module, the image processing chip and the wireless communication module are respectively connected to the interface module, the battery component includes a battery and a charge and discharge module, the battery is connected to the charge and discharge module, the charge and discharge module is respectively connected to the CMOS photosensitive module (323), the fluorescence detector (322) and the interface module, the control chip is connected to the controller, and the control chip is connected to an external host computer through the wireless communication module; The lifting assembly (42) includes a plurality of lifting cylinders (421), a plurality of distance sensors (422) and a plurality of connecting rods (423). The lifting cylinders (421) are arranged on the upper part of the detection box (6). The lower part of the lifting cylinders (421) penetrates into the detection box (6) and is connected to the connecting rods (423). The distance sensor (422) is arranged on one side of the lifting cylinder (421). The lower part of the distance sensor (422) penetrates into the detection box (6). The distance sensor (422) and the lifting cylinder (421) are respectively connected to the controller.

6. The surface spraying pre-treatment device for piston production according to claim 5, characterized in that: The lower side of the fixed plate (41114) is provided with a connecting ring groove 1 (23) and a connecting ring groove 2 (27) respectively cooperating with the inner box unit (41111) and the outer box unit (41112), a parts groove is provided in the middle of the fixed plate (41114), a plurality of air pipe grooves (16) cooperating with the air pressure assembly (413) are provided on the surface of the fixed plate (41114), and a plurality of guide grooves cooperating with the clamping portion (41113) are provided at the lower part of the fixed plate (41114); The inner box unit (41111) comprises an inner box (18), a transmission gear ring (19) arranged on the outside of the inner box (18), a plurality of sliding columns (20) arranged on the inside of the inner box (18), and a plurality of sliding grooves (22) opened on the outside of the inner box (18); a connecting ring (22) is provided on the upper part of the inner box (18); the connecting ring (22) and the connecting ring groove (23) are slidably connected; and the longitudinal section of the connecting ring groove (23) is a T-shaped structure; The outer box unit (41112) includes an outer box (24), a second transmission gear ring (25) arranged on the inner side of the outer box (24), a plurality of second sliding grooves opened on the outer side of the outer box (24), and a plurality of second slider columns arranged on the inner side of the outer box (24). A second connecting ring (26) is provided on the upper part of the outer box (24), and the second connecting ring (26) is slidably connected to the second connecting ring groove (27). The rotating unit (41115) includes a rotating motor (28), a rotating shaft (29), a gear 1 (30) and a gear 2 (31), wherein the rotating motor (28) is arranged on the upper part of the fixed disk (41114), the rotating shaft (29) passes through the fixed disk (41114) and is connected to the rotating motor (28), the gear 1 (30) and the gear 2 (31) are sequentially sleeved on the outer side of the rotating shaft (29), the gear 1 (30) is meshed with the transmission gear ring 1 (19), the gear 2 (31) is meshed with the transmission gear ring 2 (25), and the rotating motor (28) is connected to the controller; The clamping portion (41113) includes a plurality of clamping boxes (32), an extrusion sheet (33) arranged on the outside of the clamping box (32), a limiting slider (34) arranged on the upper part of the clamping box (32), a return spring (35) and a plurality of buffer sheets (36) arranged at one end of the limiting slider (34), the limiting slider (34) is slidably connected to the guide slide groove, the end of the return spring (35) away from the limiting slider (34) abuts against the inner wall of the guide slide groove, the extrusion sheet (33) abuts against the sliding column (20), and the extrusion sheet (33) is slidably connected to the inner wall of the sliding groove; the plurality of clamping boxes (32) are evenly distributed on the inner side of the inner box (18); A clamping groove (37) is provided on one side of the clamping box (32), and two air flow grooves (38) are provided inside the clamping box (32), and the two air flow grooves (38) are distributed on the upper and lower sides of the clamping groove (37). A plurality of through holes are provided on the surface of the clamping box (32) at positions corresponding to the air flow grooves (38), and a permanent magnet sheet (39) is provided at one end of the clamping groove (37); an iron sheet is embedded at one end of the buffer sheet (36); A plurality of mounting grooves are provided on a surface of one side of the clamping box (32) close to the inner box (18), and one end of the mounting groove is communicated with the clamping groove (37); The laser distance measurement module (4112) comprises a laser distance sensor, a connection box (41121) slidably arranged in an installation groove, a measuring box (41122) arranged on one side of the connection box (41121), a light guide box (41123) arranged inside the connection box (41121), a mounting box (41124) arranged on one side of the light guide box (41123), a plurality of protrusions arranged on the upper part of the connection box (41121), and a second extrusion sheet (41125) arranged on one side of the connection box (41121), wherein a guide bar is provided on the upper part of the connection box (41121), a guide groove cooperating with the guide bar is provided on the inner side of the installation groove, the laser distance sensor is arranged in the installation box (41124), a side of the light guide box (41123) away from the installation box (41124) is communicated with the measuring box (41122), a surface of the light guide box (41123) is coated with a light-shielding coating, and the laser distance sensor is connected to a controller.

7. The surface spraying pre-treatment device for piston production according to claim 6, characterized in that: The laser distance measurement module (4112) further includes a plurality of reflective components, each of which includes a plurality of reflective strips (41126), the reflective strips (41126) being used to reflect light and change the propagation path of the light; the cross-section of the reflective strip (41126) is an isosceles right triangle, the inclined surface of the reflective strip (41126) is set as a reflective surface, and the reflective surface of the reflective strip (41126) is coated with a reflective coating; the plurality of reflective strips (41126) are respectively arranged in different measuring boxes (41122), and the reflective surfaces of the reflective strips (41126) in the plurality of measuring boxes (41122) face different directions, so that the lasers emitted by the plurality of laser distance sensors enter the measuring box (41122) through the light guide box (41123), and the rays are emitted upward or downward after being reflected by the reflective strips (41126).

8. The surface spraying pre-treatment device for piston production according to claim 7, characterized in that: The limiting tooling (4122) further includes a front panel (41226), a C-shaped frame (41227) and a rear frame (41228), the two sides of the front panel (41226) are respectively connected to the two side panels (41221), the front panel (41226) is provided with three sand inlet grooves cooperating with the C-shaped frame (41227), one end of the C-shaped frame (41227) is connected to a surface of one side of the front panel (41226), the end of the C-shaped frame (41227) away from the front panel (41226) is connected to the rear frame (41228), and the lower edge of the rear frame (41228) is provided with a plurality of sand discharge holes.

9. The surface spraying pre-treatment device for piston production according to claim 8, characterized in that: The air pressure assembly (413) includes a connecting disk (4131), an air separation box (4132) arranged on the upper part of the connecting disk (4131), and an air pump (4133) arranged on the upper part of the air separation box (4132). A plurality of connecting columns (4134) are provided at the lower part of the connecting disk (4131), and the lower part of the connecting columns (4134) is connected to the fixed disk (41114); a plurality of air separation valves (4135) are connected to the outer side of the air separation box (4132). One end of the air distribution valve (4135) is connected to an air distribution pipe (4136), one end of the air distribution pipe (4136) extends downward through the connecting plate (4131) and into the air pipe chute (16), a connecting pipe is provided in the air pipe chute (16), the upper end of the connecting pipe is connected to the air distribution pipe (4136), and the lower end of the connecting pipe is connected to an air flow groove (38), the air distribution pipe (4136) is a bellows, and the air distribution valve (4135) is connected to the controller; the air The upper part of the pump (4133) is connected to an air inlet pipe (4137), the lower part of the air pump (4133) is connected to an air outlet pipe, the air outlet pipe is in communication with the air separation box (4132), and the air separation valve (4135) is connected to a controller; the lower part of the air separation box (4132) is provided with an exhaust pipe (4138), the exhaust pipe (4138) is connected to an exhaust valve, and the exhaust valve is connected to a controller; the upper part of the connecting plate (4131) is provided with a pressure plate (413 0), a plurality of connecting columns (4139) are provided at the lower portion of the pressure plate (4130), the lower portion of the connecting column (4139) is connected to the connecting plate (4131), a connecting column (4134) is provided at the upper portion of the pressure plate (4130), the upper portion of the connecting column (4134) is connected to the connecting rod (423), an extension pipe is connected to the upper portion of the intake pipe (4137), one end of the extension pipe passes through the pressure plate (4130) upward and is connected to the branch pipe (15).

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