A cleaning machine and automatic cleaning measurement system

Abstract

The present application relates to machining center technical field, disclose a kind of cleaning machine and automatic cleaning measurement system, including rack and cleaning air drying device, the inside of rack has a cleaning space being communicated with the outside of rack;Cleaning air drying device is arranged in the cleaning space, and cleaning air drying device includes the fixed structure for positioning workpiece, the cleaning structure for the water to the workpiece on fixed structure is sprayed, and the air drying structure for the air drying workpiece on fixed structure.By setting cleaning air drying device, after workpiece is installed on fixed structure, the workpiece on fixed structure is flushed by cleaning structure, and the cost is lower relative to ultrasonic cleaning, and by the impact of water workpiece surface, so that more stubborn dust can be flushed, cleaning is completed;After completing cleaning, without shifting workpiece, water stain on the surface of workpiece is blown dry by air drying fixed structure until completely air dried, reduce the use of equipment, speed up the cleaning, air drying time, to reduce cost, improve efficiency.

Description

Technical Field

[0001] This invention relates to the field of machining center technology, and in particular to a cleaning machine and an automatic cleaning and measuring system. Background Technology

[0002] Mechanical processing refers to the process of changing the shape, size, or properties of a workpiece using mechanical equipment. This process occupies a core position in manufacturing. It mainly includes two categories: cutting and pressure processing. Cutting involves removing excess metal material from the workpiece through the relative movement of a cutting tool and the workpiece to obtain the desired shape, size, and surface quality. Pressure processing, on the other hand, uses external force to cause plastic deformation of the metal material, thereby changing its shape and size.

[0003] During workpiece machining, workpieces often undergo cutting, grinding, drilling, and other processes, generating debris and dust during material removal. This debris and dust adhere to the workpiece surface; similarly, machining workshops typically experience high levels of dust due to environmental factors, which also easily adhere to workpiece surfaces. To ensure workpiece cleanliness, maintain its appearance quality and performance, and meet the requirements of subsequent processing steps, it is usually necessary to clean the dust and debris from the workpiece surface.

[0004] In traditional workpiece cleaning methods, ultrasonic cleaning plays a crucial role. This method involves immersing the workpiece in water, where the bursting of tiny bubbles generated by high-frequency sound wave vibrations effectively removes dirt from the workpiece surface, achieving the cleaning purpose. However, ultrasonic cleaning requires a certain amount of time to ensure the cleaning effect, resulting in a longer cleaning time and relatively slower processing speed. The investment, use, and maintenance costs of ultrasonic cleaning equipment are also relatively high, increasing the operating costs of enterprises. Furthermore, after ultrasonic cleaning, the workpiece needs to be retrieved and transferred to keep its surface dry, which increases processing time and further reduces efficiency. Summary of the Invention

[0005] In view of the shortcomings of the prior art, the technical problem to be solved by the present invention is to provide a cleaning machine and an automatic cleaning and measuring system to solve the problems of low efficiency and high cost of ultrasonic cleaning of workpieces.

[0006] To solve the above-mentioned technical problems, the present invention provides a cleaning machine including a frame and a cleaning and drying device. The frame has a cleaning space connecting to the outside of the frame. The cleaning and drying device is disposed in the cleaning space and includes a fixing structure for positioning the workpiece, a cleaning structure for spraying water onto the workpiece on the fixing structure, and a drying structure for air-drying the workpiece. By using water mist rinsing, the workpiece can be rinsed and dried without transferring it, thus completing the cleaning work. This not only greatly improves the cleaning efficiency but also has a relatively low cost.

[0007] Furthermore, the fixing structure includes at least two positioning parts, the size of which can be adjusted according to the size of the workpiece, and the relative movement of the two positioning parts can be controlled by a driving device to realize the loosening and clamping of the workpiece, so as to facilitate the installation and disassembly of the workpiece.

[0008] Furthermore, the positioning part includes a pair of symmetrically arranged positioning frames, with multiple limiting points between the positioning frames. The limiting points contact the edge of the workpiece to achieve line contact positioning. At least one of the limiting points has elastic contact with the workpiece to reduce friction on the workpiece during the positioning process and reduce wear on the workpiece.

[0009] Furthermore, the fixing structure also includes a drive unit mounted on the frame. The drive unit includes multiple second drive members connected to the frame, a moving part disposed on the frame and extending into the cleaning space, and a connecting plate located in the cleaning space and connected to the moving part. Each second drive member is used to drive the moving part to move the connecting plate back and forth along a cleaning direction. The positioning part is mounted on the connecting plate to drive the positioning part to move along the cleaning direction, so as to facilitate the comprehensive cleaning of the workpiece. A limiting buffer part is provided on the connecting plate to abut against the positioning part, so as to reduce the damage to the workpiece caused by the positioning part when disassembling the workpiece.

[0010] Furthermore, the cleaning structure is configured as two symmetrically arranged on both sides of the fixed structure along a direction perpendicular to the cleaning direction; both cleaning structures include a bracket connected to the inner wall of the cleaning space and at least one water jet installed on the side of the bracket facing the fixed structure. The water jet spray range covers the workpiece along its length. The water jet spray range is within the moving range of the fixed structure on the second driving member driving the connecting plate, so that the water jet can rinse the moving workpiece.

[0011] Furthermore, the air-drying structure is configured as two and is respectively set on the side of the two supports facing the fixed structure. The air-drying structure includes at least one air knife, which is arranged parallel to the water knife along the cleaning direction so that the air knife dries the moving workpiece.

[0012] Furthermore, the rack is equipped with alarm indicator lights to provide timely alarm prompts in case of equipment failure.

[0013] The cleaning machine of the present invention further includes a collection box disposed on the frame for collecting wastewater in the cleaning space for collecting wastewater from rinsing workpieces.

[0014] Furthermore, the cleaning machine of the present invention also includes a circulating water supply structure movably mounted on the frame. The circulating water supply structure includes a recovery filtration section that connects the cleaning space and the collection box respectively, and a water supply section that connects the recovery filtration section and the cleaning structure respectively. The recovery filtration section is used to recover filtered wastewater and send the filtered wastewater to the water supply section. The water supply section is used to supply water to the cleaning structure to facilitate circulating water supply and reduce water waste. The water supply section is equipped with movable rollers to facilitate the movement and maintenance of the structure, thereby facilitating the movement of the circulating water supply structure.

[0015] The present invention also provides an automatic cleaning and measuring system including a conveying mechanism for intermittently transporting workpieces along a conveying direction and a cleaning machine disposed on the side of the conveying mechanism. The conveying mechanism is used for conveying and loading / unloading workpieces, thereby completing the transportation and cleaning of workpieces.

[0016] The cleaning machine and automatic cleaning and measuring system of the present invention have at least the following beneficial effects: by setting up a cleaning and drying device, after the workpiece is installed on a fixed structure, the cleaning structure rinses the workpiece on the fixed structure. Compared with ultrasonic cleaning, this method is less expensive, and the impact of water on the surface of the workpiece can wash away stubborn dust and debris, thus completing the cleaning. After cleaning, without transferring the workpiece, the water stains on the surface of the workpiece are dried by the drying fixed structure until it is completely dry, thereby reducing the use of equipment, speeding up the cleaning and drying time, reducing costs, and improving efficiency. Attached Figure Description

[0017] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0018] Figure 1 This is a schematic diagram of the cleaning machine of the present invention;

[0019] Figure 2 This is a schematic diagram of the cleaning machine of the present invention from another angle after the door is opened;

[0020] Figure 3 This is a schematic diagram of the cleaning and drying device and the recycling box of the present invention;

[0021] Figure 4This is a schematic diagram of the cooperation structure of the positioning part, cleaning structure and air drying structure of the invention;

[0022] Figure 5 for Figure 4 An enlarged view of part A shown;

[0023] Figure 6 for Figure 4 A schematic diagram of the fit between the structure and the workpiece.

[0024] The meanings of the labels in the attached diagram are as follows:

[0025] Frame-1; First partition-11; First baffle-12; Water collection hole-13; Second baffle-14; Third baffle-15; Cleaning space-16; Box door-17; Cleaning and drying device-2; Fixing structure-21; Positioning part-211; First driving component-2111; Base plate-2112; Vertical plate-2113; Elastic rubber block-2114; First rubber block-21141; Second rubber block-21142; Guide surface-21143; Limiting rod-2115; Driving part-212; Second driving component-2121; Motor-21211; Pulley assembly-21212; Movement Part-2122; Slide rail-21221; Second connecting block-21222; Connecting frame plate-21223; Slide rod-21224; Linear guide rail-21225; Connecting plate-2123; Limiting buffer part-2124; Cleaning structure-22; Bracket-221; Mounting plane-222; Water jet-223; Air drying structure-23; Air knife-231; Alarm indicator light-3; Collection box-4; Circulating water supply structure-5; Recycling filter part-51; Drain pipe-511; Filter box-512; Filter hole-513; Water supply part-52; Water tank-521; Water pump-522. Detailed Implementation

[0026] The invention will now be further described with reference to the accompanying drawings.

[0027] An automatic cleaning and measuring system of the present invention includes a conveying mechanism for transporting workpieces along a conveying direction and a cleaning machine disposed on the side of the conveying mechanism. In use, a transport vehicle first transports the workpieces to a loading mechanism, which then transfers the workpieces from the transport vehicle to the input end of the conveying mechanism. The conveying mechanism then transports the workpieces from the inlet end to the outlet end. During the conveying process, a mechanical transfer mechanism sequentially transfers the workpieces from the conveying mechanism to the cleaning machine, the measuring structure, and the unloading mechanism. The cleaning machine and the measuring mechanism then transfer the cleaned or inspected workpieces back to the conveying mechanism. The cleaning machine cleans and dries the workpiece surface, and the inspection mechanism tests and screens various aspects of the workpiece's performance. Finally, the mechanical transfer mechanism transfers the cleaned and inspected workpieces to the unloading mechanism, thus completing the entire process of workpiece cleaning and inspection and improving production efficiency.

[0028] In this embodiment, the conveying mechanism includes a circulating conveyor for transporting workpieces along a conveying direction, a loading machine located at the inlet end of the circulating conveyor, a transport vehicle for transporting workpieces to the loading machine, a measuring machine located on the side of the circulating conveyor, and a unloading machine located at the outlet end of the circulating conveyor. The conveying mechanism also includes a mechanical transfer mechanism. In use, the transport vehicle first transports the workpieces to the loading machine, which then transfers the workpieces from the transport vehicle to the inlet end of the circulating conveyor. The circulating conveyor then transports the workpieces from the inlet end to the outlet end. During the workpiece transport process, the mechanical transfer mechanism sequentially transfers the workpieces from the circulating conveyor to the cleaning machine, measuring machine, and unloading machine. The cleaning machine and measuring machine then transfer the cleaned or inspected workpieces back to the circulating conveyor. The cleaning machine cleans and dries the workpiece surface, the measuring machine inspects and screens various aspects of the workpiece's performance, and finally, the mechanical transfer mechanism transfers the cleaned and inspected workpieces to the unloading machine, thus completing the entire process of workpiece cleaning and inspection and improving production efficiency. In this embodiment, the transport vehicle is an AGV logistics vehicle used to dock with the loading machine. The loading machine is electrically connected to the information control system. It scans and confirms the product ID code of the workpiece by scanning the dock. After sensing that the workpiece is in place, it triggers a signal to load the workpiece, and the loading machine picks up the material and transfers it to the waiting position, ensuring that the product corresponds 100% with the assembled auxiliary materials. The measuring machine includes a comparison measuring machine and a UMP measuring machine located on the side of the circulating conveyor. It detects various parameters of the workpiece to ensure the workpiece yield. The mechanical transfer mechanism consists of four six-axis robots, which correspond to the cleaning machine, the comparison measuring machine, the UMP measuring machine, and the unloading machine, respectively. The first six-axis robot picks up the workpiece from the loading machine and places it into the cleaning machine for fixing. After the cleaning machine completes the cleaning and drying of the workpiece, the first six-axis robot removes the product from the cleaning machine and places it onto the circulating conveyor. The workpiece is then moved by a circulating conveyor to the side of the UMP measuring machine. A second six-axis robot picks up the workpiece, scans its product ID code inside the UMP measuring machine, and uploads the image to the Trace system (a tool for monitoring, analyzing, and optimizing service calls in complex distributed systems). After the UMP measuring machine completes its measurement, the second six-axis robot removes the workpiece and returns it to the circulating conveyor, which continues transporting workpieces. When the workpiece moves to the side of the comparison measuring machine, a third six-axis robot picks it up, scans its ID code, and moves it to the comparison measuring machine. This process continues until the comparison measuring machine completes its measurement. Then, the third six-axis robot removes the workpiece and returns it to the circulating conveyor, which resumes transporting workpieces. When the workpiece reaches the discharge end, a fourth six-axis robot removes it, scans its ID code again, and moves it to the OK or NG area of ​​the unloading machine for cleaning and inspection.

[0029] like Figures 1 to 6As shown, a cleaning machine of the present invention includes a frame 1 with a cleaning space 16 inside, a cleaning and drying device 2 disposed in the cleaning space 16, an alarm indicator light 3 disposed on the frame 1, a collection box 4 disposed on the frame 1, and a circulating water supply structure 5 movably disposed on the frame 1. The cleaning space 16 is connected to the outside of the frame 1 so that a first six-axis robot can reach into the cleaning space for easy picking and placing of workpieces. After the workpiece is moved into the cleaning space by the first six-axis robot, the cleaning and drying device 2 positions the workpiece and then rinses it by spraying water and dries it after rinsing. The alarm indicator light 3 alarms when the equipment malfunctions to indicate abnormal equipment information. The collection box 4 is used to collect wastewater during and after rinsing of workpieces in the cleaning space. The circulating water supply structure 5 can provide water to the cleaning and drying device 2. At the same time, the circulating water supply structure 5, in conjunction with the collection box 4 and the cleaning space 16, can collect and filter wastewater, so that the filtered wastewater is circulated to the cleaning and drying device 2, saving water resources.

[0030] In this embodiment, the frame 1 has a bottom space and an upper space located above the bottom space and independent of the bottom space. A cleaning space 16 is separated in the upper space of the frame 1 by a first partition 11. The side of the cleaning space 16 away from the first partition 11 is open, forming an open side. A first baffle 12, which is sealed to the frame 1, is provided on the open side. The first baffle 12 blocks the lower half of the open side to protect the cleaning and drying device 2 within the cleaning space 16 and also serves to prevent water from entering. The open side above the first baffle 12 is used for the passage of a six-axis robot arm to facilitate the picking and placing of workpieces. To facilitate the installation and maintenance of the cleaning and drying device 2 and other structures, several hinged doors 17 are connected on each side wall of the frame 1 for opening and closing. To facilitate the movement of the entire cleaning machine, rollers are provided at the four corners of the bottom of the frame 1.

[0031] In this embodiment, the cleaning and drying device 2 includes a fixing structure 21 for positioning the workpiece within the cleaning space 16, a cleaning structure 22 for spraying water onto the workpiece on the fixing structure 21 within the cleaning space 16, and a drying structure 23 for drying the workpiece on the fixing structure 21 within the cleaning space 16. When the six-axis robot moves the workpiece to the fixing structure 21, the fixing structure 21 fixes and moves the workpiece, and releases the workpiece after cleaning to allow the six-axis robot to remove it. The cleaning structure 22 uses the fixing structure 21 to move the workpiece and rinse it, removing dust and debris from the surface of the workpiece to ensure its cleanliness. Furthermore, cleaning the workpiece using water jets can quickly remove stains, is low-cost, and does not pollute the environment, requiring no heating or cleaning agents. The air-drying structure 23 blows air onto the workpiece moving on the fixed structure 21 until the water stains on the workpiece surface are dried, thus completing the workpiece cleaning. The drying operation is still performed on the fixed structure 21, eliminating the need to transfer the workpiece, which greatly improves efficiency, reduces the use of transfer equipment, and lowers costs. In another embodiment, the cleaning and drying device 2 may include a fixed structure 21, a cleaning structure 22, and a hot drying structure. The hot drying structure includes a dryer installed in the cleaning space 16, with a corresponding waterproof structure on the dryer to achieve both cleaning and hot air drying of the workpiece.

[0032] In this embodiment, the fixing structure 21 includes a positioning part 211 with an installation space and a driving part 212 mounted on the frame 1. At least two positioning parts 211 are provided, adjacent to each other and not obstructing or blocking each other relative to the cleaning structure 22 and the drying structure 23. The installation space is adjustable; the size of the installation space for each positioning part 211 can be adjusted according to the size of the workpiece. A driving device controls the relative movement of the two positioning parts 211 to achieve the loosening and clamping of the workpiece. The driving part 212 is used to move each positioning part 211 and the workpiece on the positioning part 211 relative to the cleaning structure 22 and the drying structure 23, facilitating the cleaning and drying of the entire workpiece. Each fixing structure 21 can be two pneumatic grippers installed in the cleaning space 16, which fix the workpiece from both sides to achieve workpiece fixation.

[0033] In this embodiment, the positioning unit 211 includes a first driving member 2111 and two positioning frames symmetrically mounted on the first driving member 2111. The first driving member 2111 drives the two positioning frames to move towards or away from each other. When the two positioning frames move towards each other, the length of the installation space is reduced, which can be used to clamp and fix the workpiece. When the two positioning frames move away from each other, the length of the installation space is increased, which can be used to open the installation space enclosed between the positioning frames. When a workpiece is installed in the installation space, the workpiece is released so that the six-axis robot can remove the workpiece. The first driving member 2111 can be configured as a linear module, a double slide cylinder, or two slide cylinders, with the two slides moving towards or away from each other in a linear motion. It should be noted that the first driving member 2111 needs to be waterproofed to avoid damage to the equipment. It should be noted that the first driving member 2111 is limited to the aforementioned driving device.

[0034] In this embodiment, two positioning frames are fixedly connected to two slides. The two positioning frames are driven by a slide cylinder to move towards each other or away from each other, adjusting the length between them and thus the length of the installation space. Preferably, each positioning frame is provided with at least two sets of limiting points that position the workpiece edge in a line-contact manner. This reduces contact with the workpiece surface while supporting and fixing the workpiece, and minimizes obstruction of the workpiece surface during cleaning by the cleaning structure 22, ensuring effective cleaning. Furthermore, the line contact method reduces friction on the workpiece surface during the positioning frame's clamping or releasing process, thus reducing or preventing damage such as impacts, scratches, or dents. At least one set of limiting points maintains elastic contact with the workpiece, improving the tightness while also reducing the possibility of damage caused by friction. Specifically, both positioning frames include a base plate 2112 made of rigid material connected to the slide table along the sliding direction, a vertical plate 2113 connected to the base plate 2112 and arranged in a direction perpendicular to the sliding direction, and an elastic rubber block 2114 detachably connected to the inner side of the vertical plate 2113 along the sliding direction. The base plate 2112 connects to the slide table, the vertical plate 2113 supports the elastic rubber block 2114, and the elastic rubber block 2114 is used to contact the workpiece. After positioning the workpiece, the elastic rubber block 2114 reduces interference with the workpiece, reduces hard contact, and correspondingly reduces wear. The elastic rubber block 2114 includes a first rubber block 21141 arranged in a strip along the length of the block and at least two sets of second rubber blocks 21142 fixedly connected to the first rubber block 21141 on the inward side along the sliding direction. Each set of second rubber blocks 21142 consists of two blocks spaced apart in a direction perpendicular to both the sliding direction and the length of the block. On the opposite side of the two second rubber blocks 21142 in each set, an arc-shaped guide surface 21143 with a central protrusion is formed. The gap between the sides of the two opposing guide surfaces 21143 is greater than the thickness of the workpiece, while the gap between the central protrusions of the two opposing guide surfaces 21143 is slightly less than the thickness of the workpiece. The workpiece is sequentially inserted between the two guide surfaces 21143 in each set along the length of the block, so as to achieve the positioning and limiting of the workpiece by the squeezing and friction of the guide surfaces 21143. An arc-shaped groove with a superior arc cross-section is formed on the facing side of the two first adhesive blocks 21141. The arc-shaped groove passes through the upright plate 2113, and a pin made of rigid material passes through the arc-shaped groove on the upright and the first adhesive block 21141 to realize the connection between the first adhesive block 21141 and the upright. In this embodiment, the second adhesive block 21142 is set in two sets. One set is fixedly connected to the side of the upright away from the base plate 2112, and the other set is fixedly connected to the end of the upright near the base plate 2112. When installing the workpiece, the set of second adhesive blocks 21142 located near the base plate 2112 is used to support and hold one side of the workpiece (e.g., Figure 5The bottom side of the workpiece is shown, while another set of second rubber blocks 21142 is used to clamp the other adjacent side of the workpiece to position the workpiece from multiple sides and prevent the workpiece from sliding. To ensure the stability of the workpiece, at least one set of limiting rods 2115 are fixedly provided on the base plate 2112 along the length direction of the upright plate 2113. Each set of limiting rods 2115 has two rods, which are distributed at intervals in the same direction as the distribution of each set of second rubber blocks 21142. When the side of the workpiece is supported on the second rubber blocks 21142 near the base plate 2112, the side of the workpiece is also passed between the two limiting rods 2115 of each set. The limiting rods 2115 are made of rigid material to prevent the workpiece from flipping on the side supported by the second rubber blocks 21142 and causing the workpiece to shift. To avoid the limiting rods 2115 scratching the workpiece, each positioning frame is provided with a set of limiting rods 2115, and the limiting rods 2115 have a cylindrical structure and make line contact with the workpiece. It should be noted that the guide surface 21143 is arc-shaped, therefore, it makes essentially line contact with the workpiece. In this embodiment, the portions of each set of limiting rods 2115 and each set of guide surfaces 21143 that contact the workpiece are defined as limiting points. During workpiece installation, only the edge portion of the workpiece contacts each limiting point to minimize obstruction of the workpiece, while the rest of the workpiece is fully exposed in the cleaning space. The cleaning structure 22 and the drying structure 23 are used for rinsing and drying, respectively. It should be noted that the distribution direction of each positioning part 211 can be arranged along the distribution direction of the two positioning frames.

[0035] In this embodiment, the drive unit 212 includes multiple second drive members 2121 connected to the frame 1, a motion unit 2122 disposed on the frame 1 and extending into the cleaning space 16, a connecting plate 2123 located in the cleaning space 16 and connected to the motion unit 2122, and a limiting buffer part 2124 disposed on the connecting plate 2123 for always abutting against the positioning frame 211. The second drive members 2121 provide power to the motion unit 2122, causing the motion unit 2122 to drive the connecting plate 2122 to move. The positioning part 211 is mounted on the connecting plate 2123. When the motion unit 2122 drives the connecting plate 2123 to move, the connecting plate 2123 drives the positioning part 211 to move, thereby realizing the movement of the workpiece. This allows the cleaning structure 22 and the drying structure 23 to thoroughly rinse and dry the workpiece while remaining stationary. The limiting buffer part 2124 is used to slow down the movement speed of the positioning frame to prevent the positioning frame from scratching the workpiece due to excessive speed during the release of the workpiece.

[0036] In this embodiment, the second driving component 2121 is disposed within the bottom space and includes a motor 21211 fixedly mounted on the inner wall of the bottom space and a pulley assembly 21212 connected to the output shaft of the motor 21211 and arranged along a cleaning direction. The motor 21211 is a servo motor, and its output shaft can rotate clockwise and counterclockwise. The operation of the motor 21211 drives the pulley assembly 21212 via belt transmission. The moving part 2122 is connected to the pulley assembly 21212, causing the moving part 2122 to move with the pulley assembly 21212, thereby driving the connecting plate 2123 to move back and forth along the cleaning direction. The pulley assembly 21212 includes a vertical plate arranged along the cleaning direction, two parallel pulleys rotatably connected to the vertical plate, and a belt wound around the two pulleys. One pulley shaft is connected to the output shaft of the motor 21211, the two pulleys are distributed along the cleaning direction, and a first connecting block is fixedly connected to the belt. The moving part 2122 is connected to the first connecting block. When in use, the motor 21211 runs clockwise, driving the pulley connected to it to rotate, which in turn drives the belt to rotate around the two pulleys. The first connecting block on the belt moves along the cleaning direction from near one of the pulleys to near the other pulley. When the motor 21211 runs counterclockwise, the pulley and belt rotate in opposite directions, and the first connecting block moves in the opposite direction along the cleaning direction.

[0037] In this embodiment, the moving part 2122 includes at least two slide rails 21221 spaced apart and parallel to each other along the cleaning direction, a plurality of second connecting blocks 21222 respectively disposed on each slide rail 21221, a connecting frame plate 21223 located inside each slide rail 21221 and fixedly connected to each second connecting block 21222, a plurality of slide rods 21224 fixedly connected to the connecting frame plate 21223, and a linear guide rail 21225 fixedly installed on the inner wall of the cleaning space 16 and facing each slide rod 21224 along the cleaning direction. Each slide rod 21224 is movably inserted into the cleaning space 16 and slides through each linear guide rail 21225 along the cleaning direction so that each slide rod 21224 can slide in the cleaning space 16 along the cleaning direction. The connecting plate 2123 is fixedly connected to one end of each slide rod 21224 extending into the cleaning space 16. When the workpiece is mounted on the positioning part 211 and needs to be cleaned, the motor 21211 of the second driving member 2121 rotates counterclockwise and clockwise alternately. Through the cooperation between the pulley and the belt, it drives the connecting frame plate 21223 connected to the second connecting block 21222 to move along the cleaning direction. This drives the slide rod 21224 to pass through the cleaning space 16 along the cleaning direction, thereby moving the connecting plate 2123. The positioning part 211 then moves along the cleaning direction, causing the workpiece to move back and forth along the cleaning direction. During the movement of the workpiece, the cleaning structure 22 and the drying structure 23 sequentially rinse and dry the workpiece. In this embodiment, most of the structure of the second driving member 2121 and the moving part 2122 is set in the bottom space, which can avoid the second driving member 2121 and the moving part 2122 from obstructing the workpiece and affecting the rinsing effect. Moreover, if all parts of the moving part 2122 and the second driving member 2121 are set in the cleaning space 16, it will increase the amount of water splashing and affect the rinsing effect.

[0038] In this embodiment, two limiting buffer parts 2124 are provided and are respectively located on both sides of the two positioning frames along the length of the installation space. Both limiting buffer parts 2124 are fixedly connected to the connecting plate 2123. When the two positioning frames clamp the workpiece, the two limiting buffer parts are in their normal state and gently abut against the upright plate 2113 of the positioning frame. When it is necessary to release the workpiece, the two upright plates 2113 gradually move in opposite directions under the drive of the first driving member 2111. During this process, the limiting buffer parts 2124 press against the upright plates 2113 to reduce the moving speed of the upright plates 2113 and reduce the possibility of scratches on the upright plates 2113 during the release process. The limiting buffer parts 2124 are existing buffers and are prior art, so they will not be described in detail here.

[0039] In this embodiment, the cleaning structures 22 are configured as two symmetrically arranged on both sides of the fixed structure 21 along a direction perpendicular to the cleaning direction, so that the fixed structure 21 is located between the two cleaning structures 22. After the drive unit 212 is running, the positioning unit 211 moves between the cleaning structures 22 along the cleaning direction to rinse the workpiece on the positioning unit 211 back and forth. Each of the two cleaning structures 22 includes a bracket 221 connected to the inner wall of the cleaning space 16 and at least one water jet 223 mounted on the side of the bracket 221 facing the fixed structure 21. The opposing sides of the two brackets 221 each have a mounting plane 222, and the two water jets 223 are respectively mounted on the mounting plane 222. The water jet 223 is connected to the circulating water supply structure 5 through a pipeline. The length direction of the water jet 223 is arranged parallel to the length direction of the installation space, and the length of the water jet 223 is greater than the length of the installation space. The water spray range of the water jet 223 covers the workpiece along the length range of the workpiece, and the water spray range is within the moving range of the fixed structure 21 on the drive connecting plate 2123 driven by the second drive component 2121. Thus, when the water jet 223 sprays water, the workpiece moves along the cleaning direction and passes through the water jet 223 in sequence, achieving full-coverage rinsing.

[0040] In this embodiment, two air-drying structures 23 are configured and mounted on the mounting planes 222 of the two supports 221. Each air-drying structure 23 includes at least one air knife 231, which is arranged parallel to the water jet 223 along the cleaning direction. An air pump and an exhaust fan connected to the air pump are mounted on the frame 1. The exhaust fan is used for heat dissipation in the bottom space, and the air pump is used to connect to the air knife 231 through a second pipe. Each air-drying structure 23 has two air knives 231 arranged parallel to each other along the cleaning direction. The water jet 223 is located outside the two air knives 231, and the two air knives 231 are arranged adjacent to each other. The air-drying range of the air knife 231 is set to be consistent with the spray range of the water jet 223 so as to cover the movement range of the workpiece, thereby drying water stains on the surface of the workpiece. In operation, the water jet 223 operates before the air jet 231 to rinse the workpiece. When the workpiece is stationary, the two air jets 231 are positioned directly at one-third and two-thirds of the workpiece, respectively, allowing air to be blown onto the workpiece surface without movement. This increases the contact time between the air and the workpiece, accelerating the drying process by directly blowing air onto the workpiece and driving airflow within the cleaning space 16. After a certain time, the workpiece is dried. Even when the workpiece is moving, the contact area between the air jet 231 and the workpiece is increased, achieving the same drying effect.

[0041] In this embodiment, the bottom space is located at the bottom of the upper space, and the collection box 4 is fixedly installed at the top of the bottom space. A water collection hole 13 is provided on the bottom wall of the cleaning space 16 at a position directly opposite the positioning part 211 along the cleaning direction. The collection box 4 is located directly below the water collection hole 13, and each side of the collection box 4 is connected to the inner wall of the bottom space surrounding the water collection hole 13. Preferably, the brackets 221 are disposed on both sides of the water collection hole 13, and the mounting planes 222 extend along the cleaning direction to the two opposite sides of the water collection hole 13, so that the two mounting planes 222 surround the positioning part 211 inside it. The water jet 223 is disposed on the side of the mounting plane 222 away from the water collection hole 13, and the two mounting planes 222 can block most of the splashing water so that most of the water, after rinsing, flows with the mounting planes 222 towards the water collection hole 13 due to gravity and the water blocked by the mounting planes 222 and finally flows into the collection box 4, thereby reducing water splashing everywhere and collecting wastewater in the cleaning space. Since the water jet 223 is installed on the side (top) of the mounting plane 222 away from the water collection hole 13, when the workpiece moves with the positioning part 211 to be rinsed by the water jet 223, water will splash onto the cleaning space 16 outside the two mounting planes 222 when it sprays towards the workpiece surface. Since there are many wires and electrical components in the frame 1 to control the pumps and drive components, in order to prevent the blocked water from splashing onto the electrical components, second baffles 14 are respectively provided on the two sides opposite to the bracket 221 in the cleaning space 16. The first baffle 12 is located on one side of the mounting space of the two brackets 221 along the length direction. One side of the two second baffles 14 is connected to the first partition 11, and the other opposite side of the two second baffles 14 is connected to a third baffle 15 set on the open side. The third baffle 15 covers two-thirds of the open side, which can block some of the splashed water while allowing the first six-axis robot to pass through. Each second baffle 14 has a gap between the side away from the water collection hole 13 and the inner wall of the cleaning space 16 to achieve a double water-blocking effect.

[0042] In this embodiment, the circulating water supply structure 5 includes a recycling filter section 51 that connects the cleaning space 16 and the collection box 4, and a water supply section 52 that connects the recycling filter section 51 and the cleaning structure 22. The water supply section 52 provides water and water pressure to the cleaning structure 22 for rinsing the workpiece. The recycling filter section 51 collects and filters the wastewater in the cleaning space 16 that does not flow to the collection box 4 and the water in the collection box 4. The filtered water flows to the water supply section 52 for water supply to the cleaning structure 22, thereby achieving circulating water supply, reducing water use and waste, and lowering costs. The recycling filter section 51 includes several drain pipes 511 with input ends connected to the bottom wall of the cleaning space 16 and a filter box 512. Drain pipes 511 are also connected to the bottom wall of the cleaning space 16 located outside each of the second baffles 14 and the third baffles 15. The wastewater in this part is difficult to flow into the collection box 4 due to the restriction of the second baffles 14 and the third baffles 15, so the drain pipes 511 are used to discharge the wastewater. The output ends of each drain pipe 511 are connected to the filter box 512 and communicate with the interior of the filter box 512. Water in the collection box 4 is also connected to the filter box 512 through pipes. Several filter cotton and / or filter media are installed in the filter box 512 to filter the wastewater. The water supply unit 52 includes a water tank 521 with movable rollers at the bottom and a water pump 522 installed on the water tank 521. The input pipe of the water pump 522 extends into the water tank 521, and the output pipe of the water pump 522 is connected to the water jet 223 through pipes. The filter box 512 is fixedly installed at the bottom of the water tank 521, and filter holes 513 are opened at the bottom of the filter box 512 and the top of the water tank 521 to allow the filtered water in the filter box 512 to enter the interior of the water tank 521, so that the filtered water flows into the water tank 521. On the side wall of the frame 1, there is a moving port that allows the entire circulating water supply structure 5 to move freely into or out of the bottom space. The moving port is blocked by the box door 17 to prevent the circulating water supply structure 5 from detaching from the frame 1.

[0043] It should be noted that the water pump 522, air pump, first drive unit 2111, second drive unit 2121, and alarm indicator 3 in this invention are all electrically connected to a controller for control. A switch is installed on the frame 1 to enable fully automatic operation of each component. The cleaning direction in this invention is the vertical Z-axis direction, the separation direction is the X-axis direction, and the length direction of the installation space is the Y-axis direction, forming a three-axis distribution. The cleaning direction can also be set along the transverse direction; in this case, the installation positions of the second drive unit 2121 and the moving part 2122 would need to be modified for easier operation.

[0044] The working method of one embodiment of the cleaning machine of the present invention is as follows: In the initial state, the installation space between the two positioning frames is open, and the workpiece can freely pass through it. The slide rod 21224 drives the connecting plate 2123 to be located below the spray range of the water jet 223. Then, the first six-axis robot moves the workpiece from the open side to the position directly above the positioning part 211 and moves the workpiece into the installation space along the cleaning direction. After the bottom side of the workpiece moves between the sets of limit rods 2115, the workpiece is in place. The first driving member 2111 runs and drives the two positioning frames to move towards each other to gradually squeeze the side of the workpiece until the side of the workpiece is squeezed between the sets of guide surfaces 21143, and the installation and positioning of the workpiece is completed. Then, the six-axis robot withdraws, and the second driving member 2121 runs and drives the connecting plate through the slide rod 21224. 2123 moves, causing the workpiece to move along the cleaning direction. At the same time, water pump 522 runs to deliver water to water jet 223. During this process, slide bar 21224 drives the workpiece to be rinsed from one side to the other by water jet 223. Then, first drive member 2111 drives slide bar 21224 to slide in the opposite direction to repeatedly clean the workpiece. After cleaning, water pump 522 stops supplying water, and air pump runs to blow air onto the workpiece to dry the water stains on the surface of the workpiece. During this process, first drive member 2111 can continue to run or remain stationary until the surface of the workpiece is basically dried. Then, air pump stops running, and the corresponding six-axis robot extends into the cleaning space 16 and grabs the workpiece. Then, first drive member 2111 runs to release the workpiece, and the six-axis robot takes out the workpiece and places it on the conveying mechanism, thus completing the workpiece picking, placing and cleaning.

Claims

1. A cleaning machine, characterized in that, include: A rack, the interior of which has a cleaning space communicating with the outside of the rack; as well as A cleaning and drying device is installed in the cleaning space. The cleaning and drying device includes a fixing structure for positioning the workpiece, a cleaning structure for spraying water onto the workpiece on the fixing structure, and a drying structure for drying the workpiece. The fixing structure includes at least two positioning parts. The size of the installation space of the positioning parts can be adjusted according to the size of the workpiece, and the relative movement of the two positioning parts is controlled by a driving device to realize the loosening and clamping of the workpiece. The positioning unit includes a first driving member with two slidable slides and a pair of positioning frames symmetrically disposed on the two slides. The first driving member is used to drive the two positioning frames to move towards or away from each other along the sliding direction of the slides. Multiple limiting points are provided between the positioning frames. The limiting points contact the edge of the workpiece to achieve line contact positioning. At least one of the limiting points has elastic contact with the workpiece to reduce friction of the workpiece during the positioning process. Each pair of positioning frames includes a base plate connected to the slide table, a vertical plate connected to the base plate and arranged in a direction perpendicular to the sliding direction, and an elastic rubber block detachably connected to the inner side of the vertical plate in the sliding direction. The elastic rubber block includes a first rubber block arranged in a strip along the length of the vertical block and at least two sets of second rubber blocks fixedly connected to the inner side of the first rubber block in the sliding direction. Each set of second rubber blocks consists of two blocks spaced apart in a direction perpendicular to both the sliding direction and the length of the vertical block. A central protrusion is formed on the opposite side of the two second rubber blocks in each set. The guide surface is arc-shaped, and the gap between the sides of two opposing guide surfaces is greater than the thickness of the workpiece, while the gap between the protruding parts in the middle of the two opposing guide surfaces is less than the thickness of the workpiece. An arc-shaped groove with a superior arc cross-section is opened on the opposing side surface of each group of first rubber blocks. The arc-shaped groove passes through the vertical plate and is inserted into the arc-shaped groove on the column and the first rubber block by a pin. At least one set of limiting rods is fixedly arranged on the base plate along the length direction of the vertical plate for the side of the workpiece to pass through and make line contact with it. Each limiting rod and the part of each guide surface used to contact the workpiece is defined as the limiting point.

2. The cleaning machine as described in claim 1, characterized in that: The fixed structure also includes a drive unit mounted on the frame. The drive unit includes a plurality of second drive members connected to the frame, a motion unit disposed on the frame and extending into the cleaning space, and a connecting plate located in the cleaning space and connected to the motion unit. Each second drive member is used to drive the motion unit to move the connecting plate back and forth along a cleaning direction. The positioning part is mounted on the connecting plate, and a limiting buffer part abutting against the positioning part is provided on the connecting plate.

3. A cleaning machine as described in claim 2, characterized in that: The cleaning structure is configured as two and symmetrically arranged on both sides of the fixed structure along a direction perpendicular to the cleaning direction; both cleaning structures include a bracket connected to the inner wall of the cleaning space and at least one water jet installed on the side of the bracket facing the fixed structure. The water jet spray range covers the workpiece along the length of the workpiece, and the water spray range is within the movement range of the fixed structure on the second driving member driving the connecting plate.

4. A cleaning machine as described in claim 3, characterized in that: The air-drying structure is configured as two and is respectively installed on the side of the two supports facing the fixed structure. The air-drying structure includes at least one air knife, which is arranged parallel to the water knife along the cleaning direction.

5. A cleaning machine as described in claim 1, characterized in that: The frame is equipped with alarm indicator lights.

6. A cleaning machine as described in claim 1, characterized in that: It also includes a collection box mounted on the rack for collecting wastewater within the cleaning space.

7. A cleaning machine as described in claim 6, characterized in that: It also includes a circulating water supply structure that is movably mounted on the frame. The circulating water supply structure includes a recycling filter section that connects the cleaning space and the collection box respectively, and a water supply section that connects the recycling filter section and the cleaning structure respectively. The recycling filter section is used to recycle the filtered wastewater and send the filtered wastewater to the water supply section. The water supply section is used to supply water to the cleaning structure. The water supply section is equipped with movable rollers to facilitate the movement and maintenance of the structure.

8. An automatic cleaning and measuring system, characterized in that: It includes a conveying mechanism for transporting and inspecting workpieces along a conveying direction, and a cleaning machine as described in any one of claims 1 to 7 disposed on the side of the conveying mechanism.

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