3D line-scan detection flatness inspection platform

Abstract

The application discloses a kind of 3D line scanning detection flatness testing platform, involving detection flatness testing platform technical field, including bottom plate, the upper end of the bottom plate is equipped with shell, the lower portion of the shell is equipped with laser scanner, the upper end of the bottom plate is located below workpiece table of shell, the side of the workpiece table away from shell is equipped with two groups of cleaning components, the upper end of the workpiece table is equipped with workpiece placing box close to the side of two groups of cleaning components, the workpiece placing box is equipped with pusher component.The detection surface of workpiece is cleaned, the motor rotates to make the first rotating roller of the other transmission end of outer wall sleeve transmission belt rotate, drives the sliding rod in the first connecting rod to slide, makes the limit block along the fixed rod to slide on both sides, drives the brush rod to swing, and the workpiece in the workpiece placing box below is cleaned, so that the detection effect is not affected by dust.

Description

Technical Field

[0001] This invention relates to the technical field of flatness inspection platform, specifically a 3D line scan flatness inspection platform. Background Technology

[0002] Flatness refers to the deviation of the macroscopic unevenness of a substrate from an ideal plane. Flatness is an indicator that limits the variation of an actual plane from its ideal plane and is used to control the shape error of the measured actual plane. The flatness of a workpiece needs to be inspected, and the results of the flatness inspection affect the production pass rate, making the flatness inspection of the workpiece an important part of the high-quality processing process. Currently, in order to meet the needs of high-quality processing, it is necessary to inspect the flatness of the workpiece.

[0003] The workpieces obtained after machining need to undergo various tests to ensure that their quality meets the standards. One of the most common methods for flatness testing is to place the workpiece on an inspection platform and measure the distance to the workpiece surface using a laser displacement sensor. However, since most existing flatness testing devices have open structures and are often used in workshop environments, the sensor and workpiece surface are exposed to the air during the testing process. This makes it easy for dust particles or other large impurities to adhere to the workpiece surface before testing, indirectly leading to inaccurate flatness test results. To ensure the accuracy of the workpiece testing, the surface needs to be wiped frequently by hand, resulting in low testing efficiency and difficulty in ensuring the cleanliness of the workpiece surface. Summary of the Invention

[0004] Therefore, the purpose of this invention is to provide a 3D line scan detection flatness inspection platform to solve the technical problems mentioned in the background.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a 3D line scan flatness inspection platform, comprising a base plate, a housing mounted on the upper end of the base plate, a laser scanner located below the housing, a workpiece stage located below the housing on the upper end of the base plate, two sets of cleaning components on the side of the workpiece stage away from the housing, a workpiece placement box slidably mounted on the upper end of the workpiece stage near the two sets of cleaning components, a pushing component installed in the workpiece placement box, a collecting component installed in the cleaning components, and a lead screw installed in the internal bearing of the workpiece stage;

[0006] The cleaning assembly includes a chassis fixedly mounted on a base plate near the workpiece table. A motor is installed inside the chassis. A lead screw is mounted on the output end of the motor via a coupling. A transmission belt is sleeved on the outer wall of the motor's output end. A first rotating roller, mounted on the inner wall of the chassis and extending through the outer side of the chassis, is fitted with a bearing on the inner wall of the other end of the transmission belt. A first connecting rod is fixedly mounted on the other end of the first rotating roller near the chassis. A sliding rod is slidably fitted on the inner wall of the first connecting rod. Two sets of mounting plates are fixedly mounted on one end of the chassis near the upper and lower sides of the sliding rod. A limit block is fixedly mounted on one end of the sliding rod. A fixing rod is installed between the mounting plates, penetrating the inner wall of the limit block. A second rotating roller is rotatably sleeved on the outer wall of the fixing rod. Both ends of the second rotating roller are fixed to the ends of the mounting plates via bearings. A brush rod is fixedly mounted on the outer wall of the second rotating roller near the workpiece placement box.

[0007] As a preferred embodiment of the present invention, the collecting assembly includes a piston cylinder fixedly installed on the inner wall of the housing and located below the connecting plate. A crank connecting rod is fixedly installed at the other end of the first rotating roller located inside the housing. An ejector rod extending out of the piston cylinder and fixed to the end bearing of the crank connecting rod is slidably provided inside the piston cylinder. A piston plate is installed at one end of the ejector rod inside the piston cylinder. A telescopic spring fixed to the end of the piston plate is installed at the bottom of the piston cylinder. A positioning rod is installed between one end of the ejector rod and the crank connecting rod. A connecting pipe penetrating the housing and the mounting plate is installed at the other end of the piston cylinder. Two sets of collecting boxes are fixedly installed on both sides of the upper end of the workpiece stage near the workpiece placement box. One end of each collecting box is connected to the connecting pipe. A dust suction port is installed at one end of each set of collecting boxes. A filter plate is slidably installed inside the collecting box.

[0008] As a preferred embodiment of the present invention, the pushing assembly includes a pushing cavity formed inside one side of the workpiece placement box. Two sets of gears extending outward from the outside of the workpiece placement box are installed at both ends of the pushing cavity. A movable plate is installed between the two sets of gears at the contact position with the gear surface. A first L-shaped block is installed at the bottom end of the movable plate inside the pushing cavity. A second L-shaped block is installed at both ends of the first L-shaped block at the contact position with the bottom end of the closing door. Two sets of closing doors are rotatably installed at one end of the workpiece placement box. A sliding groove is formed at one end of the workpiece table. A limiting plate is installed at the upper end of the base plate near the contact position of the sliding groove. Two sets of toothed plates at the contact positions with the gear surface are installed at both ends of the inner wall of the housing.

[0009] As a preferred embodiment of the present invention, a circular hole is provided at the connection point between one end of the piston cylinder and the connecting pipe, and a one-way valve is provided in the circular hole. A discharge pipe extending through and to the outside of the chassis is installed at one end of the piston cylinder, and a one-way valve is provided at the connection point between the discharge pipe and the piston cylinder.

[0010] As a preferred embodiment of the present invention, the inner wall of the connecting plate is provided with a through groove at the contact position with the surface of the transmission belt, and the size of the through groove is larger than the outer wall size of the transmission belt.

[0011] As a preferred embodiment of the present invention, a support rod is installed between the two ends of the workpiece placement box cavity and the two sets of gears, and the two ends of the support rod are fixedly installed to the two ends of the workpiece placement box cavity through bearings, and the outer wall of the support rod is fixed to the end of the gear.

[0012] As a preferred embodiment of the present invention, a travel groove is provided at the contact position between one end of the second L-shaped block and the surface of the first L-shaped block, and a sliding rod is installed in the travel groove, which penetrates the second L-shaped block and extends to both ends of the travel groove. The upper end of the second L-shaped block is fixedly installed to the closing door by a bearing, and a telescopic spring fixed to the end of the second L-shaped block is sleeved on the outer wall of the sliding rod.

[0013] As a preferred embodiment of the present invention, a limiting rod is fixedly installed inside the pushing cavity through the movable plate, and the limiting rod is circular in shape.

[0014] As a preferred embodiment of the present invention, two sets of mounting blocks are installed at the contact positions between the two ends of the filter plate and the collection box, and the collection box is provided with mounting grooves at the contact positions with the surfaces of the mounting blocks.

[0015] As a preferred embodiment of the present invention, a cover plate is installed on the upper end of the collection box, and a rubber block is installed at the contact position between the cover plate and the upper end of the collection box.

[0016] In summary, the present invention has the following main beneficial effects:

[0017] 1. In this invention, when cleaning the inspection surface of a workpiece, the rotation of the motor causes the first rotating roller at the other transmission end of the transmission belt sleeved on the outer wall to rotate, which drives the sliding rod installed inside the first connecting rod to slide, causing the limiting block to swing along the fixed rod on both sides, which drives the brush rod to swing accordingly, so that the brush rod cleans the surface dust and impurities of the workpiece placed in the workpiece placement box below, avoiding dust obstruction of the workpiece during inspection and affecting the inspection effect.

[0018] 2. In this invention, when dust is collected, the transmission belt rotates, driving the crank connecting rod installed at the other end of the first rotating roller to rotate. This causes the ejector rod and piston plate to slide inside the piston cylinder. At the same time, the one-way valve in the discharge pipe closes while the one-way valve in the connecting pipe opens, allowing the dust cleaned from the workpiece surface to be sucked in through the dust suction port at one end of the collection box. This achieves self-collection of dust, preventing dust from being stirred up and splashed out. Furthermore, the filter plate can be cleaned by removing the cover plate.

[0019] 3. In this invention, when the workpiece is inspected and pushed out, the motor drives the lead screw to rotate, causing the laser scanner to inspect the flatness of the workpiece. When the workpiece placement box continues to move and causes the gear to contact the toothed plate, the toothed plate rotates and extends the moving plate to push out the workpiece. The first L-shaped block and the second L-shaped block extend outward, causing the closing door to open, allowing the workpiece to slide down the slide groove to the limiting plate, thus completing the flatness inspection of the workpiece. The inspected workpiece can be automatically pushed out to the limiting plate, facilitating quick handling of the workpiece. Attached Figure Description

[0020] Figure 1 This is a three-dimensional overall structural diagram of the present invention;

[0021] Figure 2 This is a three-dimensional structural diagram of the workpiece stage of the present invention;

[0022] Figure 3 This is a three-dimensional structural diagram of the cleaning component of the present invention;

[0023] Figure 4 For the present invention Figure 3 Enlarged structural diagram at point A in the middle;

[0024] Figure 5 This is a three-dimensional structural diagram of the collection component of the present invention;

[0025] Figure 6 This is a three-dimensional structural diagram of the collection box and the suction port of the present invention;

[0026] Figure 7 This is a three-dimensional structural diagram of the feeding assembly of the present invention;

[0027] Figure 8 This is a three-dimensional structural diagram of the second L-shaped block and the movable toothed plate of the present invention.

[0028] In the diagram: 100, base plate;

[0029] 110. Housing; 120. Laser scanner; 130. Cleaning assembly; 140. Collection assembly; 150. Workpiece placement box; 160. Pushing assembly; 170. Workpiece table; 180. Lead screw; 131. Chassis; 132. Motor; 133. Drive belt; 134. First rotating roller; 135. First connecting rod; 136. Sliding rod; 137. Mounting plate; 138. Fixing rod; 139. Limiting block; 1391. Second rotating roller; 1392. Brush rod; 41. Connecting plate; 142. Piston cylinder; 143. Ejector rod; 144. Piston plate; 145. Telescopic spring; 146. Crank connecting rod; 147. Positioning rod; 148. Connecting pipe; 149. Collection box; 1491. Dust suction port; 1492. Filter plate; 161. Pushing cavity; 162. Gear; 163. Moving plate; 164. First L-shaped block; 165. Second L-shaped block; 166. Closing door; 167. Slide groove; 168. Limiting plate; 169. Toothed plate. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0031] The embodiments of the present invention will now be described.

[0032] A 3D line scan inspection flatness testing platform, such as Figures 1 to 8 As shown, the device includes a base plate 100, a housing 110 mounted on the upper end of the base plate 100, a laser scanner 120 located below the housing 110, a workpiece stage 170 located below the housing 110 on the upper end of the base plate 100, two sets of cleaning components 130 located on the side of the workpiece stage 170 away from the housing 110, a workpiece placement box 150 slidably mounted on the upper end of the workpiece stage 170 near the side of the two sets of cleaning components 130, a pushing component 160 installed in the workpiece placement box 150, a collecting component 140 installed in the cleaning component 130, and a lead screw 180 installed in the bearing inside the workpiece stage 170.

[0033] The cleaning assembly 130 includes a housing 131 fixedly mounted on the base plate 100 and near the workpiece stage 170. A motor 132 is installed inside the housing 131. A lead screw 180 is mounted on the output end of the motor 132 via a coupling. A transmission belt 133 is sleeved on the outer wall of the output end of the motor 132. A first rotating roller 134, with a bearing mounted on the inner wall of the other end of the transmission belt 133 and extending through the outer side of the housing 131, is also mounted on the inner wall of the housing 131. A first connecting rod 135 is fixedly mounted on the other end of the first rotating roller 134 near the side of the housing 131. The inner wall of the 35 is fitted with a sliding rod 136. Two sets of mounting plates 137 are fixedly installed at one end of the housing 131 near the upper and lower sides of the sliding rod 136. A limit block 139 is fixedly installed at one end of the sliding rod 136. A fixing rod 138 is installed between the mounting plates 137, penetrating the inner wall of the limit block 139. A second rotating roller 1391 is rotatably sleeved on the outer wall of the fixing rod 138. The two ends of the second rotating roller 1391 are fixed to the ends of the mounting plate 137 through bearings. A brush rod 1392 is fixedly installed on the outer wall of the second rotating roller 1391 near the workpiece placement box 150.

[0034] When cleaning the inspection surface of the workpiece, the motor 132 rotates the first rotating roller 134 at the other transmission end of the transmission belt 133 connected to the outer wall, causing the first connecting rod 135 installed at the other end to rotate simultaneously. This causes the sliding rod 136 installed inside the first connecting rod 135 to slide, and at the same time, it causes the limiting block 139 installed at one end of the sliding rod 136 to swing along the fixed rod 138 inside, making it slide on both sides. This causes the second rotating roller 1391 and the brush rod 1392 fixed at both ends of the fixed rod 138 to swing accordingly, so that the brush rod 1392 cleans the surface dust and impurities of the workpiece placed in the workpiece placement box 150 below, so as to avoid the workpiece being blocked by dust during inspection and thus affecting the inspection effect.

[0035] Please refer to this carefully. Figure 5 and Figure 6The collecting assembly 140 includes a piston cylinder 142 fixedly installed on the inner wall of the housing 131 and located below the connecting plate 141. A crank connecting rod 146 is fixedly installed at the other end of the first rotating roller 134 located inside the housing 131. An ejector rod 143 is slidably provided inside the piston cylinder 142, extending out of the piston cylinder 142 and fixed to the end bearing of the crank connecting rod 146. A piston plate 144 is installed at one end of the ejector rod 143 inside the piston cylinder 142. A piston plate 144 is fixed to the end of the piston plate 144 at the bottom inside the piston cylinder 142. A telescopic spring 145 and a positioning rod 147 are installed between one end of the ejector rod 143 and the crank connecting rod 146. A connecting pipe 148 is installed at the other end of the piston cylinder 142, passing through the machine housing 131 and the mounting plate 137. Two sets of collection boxes 149 are fixedly installed on both sides of the upper end of the workpiece table 170 near the workpiece placement box 150. One end of the collection box 149 is connected to the connecting pipe 148. A dust suction port 1491 is opened at one end of each set of collection boxes 149. A filter plate 1492 is slidably installed inside the collection box 149.

[0036] When collecting dust, the drive belt 133 rotates, driving the crank connecting rod 146 mounted on the other end of the first rotating roller 134 to rotate. This causes the positioning rod 147 and the ejector rod 143 mounted on one end of the crank connecting rod 146 to descend, allowing the ejector rod 143 and piston plate 144 to slide within the piston cylinder 142. At this time, the air in the piston cylinder 142 is compressed, and the one-way valve in the discharge pipe closes while the one-way valve in the connecting pipe 148 opens. When the ejector rod 143 is pressed down into the piston cylinder 142, the dust cleaned from the surface of the workpiece in the workpiece placement box 150 is sucked in through the dust suction port 1491 at one end of the collection box 149. The dust is blocked by the filter plate 1492, causing larger impurities to fall into the collection box 149, while smaller impurities and dust are adsorbed into the filter plate 1492. This achieves self-collection of dust, preventing dust from being stirred up and splashed out. The filter plate 1492 can also be cleaned by removing the cover.

[0037] Please refer to this carefully. Figure 7 and Figure 8The pushing assembly 160 includes a pushing cavity 161 opened inside one side of the workpiece placement box 150. Two sets of gears 162 extending out of the outside of the workpiece placement box 150 are installed at both ends of the pushing cavity 161. A movable plate 163 is installed between the two sets of gears 162 at the contact position with the surface of the gears 162. A first L-shaped block 164 is installed at the bottom end of the movable plate 163 inside the pushing cavity 161. A second L-shaped block 165 is installed at both ends of the first L-shaped block 164 at the contact position with the bottom end of the closing door 166. Two sets of closing doors 166 are rotatably installed at one end of the workpiece placement box 150. A slide groove 167 is opened at one end of the workpiece table 170. A limiting plate 168 is installed at the upper end of the base plate 100 near the contact position of the slide groove 167. Two sets of toothed plates 169 at the contact position with the surface of the gears 162 are installed at both ends of the inner wall of the housing 110.

[0038] When the workpiece inspection is completed and the workpiece is pushed out, the motor 132 drives the lead screw 180 to rotate, causing the workpiece placement box 150, which is sleeved on the outer wall of the lead screw 180, to move downwards towards the laser scanner 120, so that the laser scanner 120 can inspect the flatness of the workpiece. When the workpiece placement box 150 continues to move and causes the gear 162 to contact the toothed plate 169, the toothed plate 169 is rotated and the moving plate 163 between the two sets of toothed plates 169 extends to push the workpiece out of the workpiece placement box 150. At the same time, when the moving plate 163 moves, it causes the first L-shaped block 164 and the second L-shaped block 165 installed at the bottom to extend outwards. At the same time, it causes the closing door 166 installed on the upper bearing of the second L-shaped block 165 to open, so that the workpiece in the workpiece placement box 150 slides down through the slide groove 167 to the limiting plate 168, completing the flatness inspection of the workpiece. The inspected workpiece can be automatically pushed out to the limiting plate 168 for quick pick-up and drop.

[0039] Please refer to this carefully. Figure 5 A circular hole is provided at one end of the piston cylinder 142 where it connects with the connecting pipe 148. A one-way valve is installed in the circular hole. A discharge pipe is installed at one end of the piston cylinder 142, extending through to the outside of the casing 131. A one-way valve is also provided at the connection point between the discharge pipe and the piston cylinder 142.

[0040] The ejector rod 143 and piston plate 144 slide inside the piston cylinder 142. At this time, the air inside the piston cylinder 142 is compressed, the one-way valve in the discharge pipe is closed and the one-way valve in the connecting pipe 148 is opened. As the ejector rod 143 slides up and down inside the piston cylinder 142, air enters from the connecting pipe 148 and is discharged from the discharge pipe, thus completing the collection of dust in the collection box 149 connected to the end of the connecting pipe 148.

[0041] Please refer to this carefully. Figure 3 and Figure 4The inner wall of the connecting plate 141 is provided with a through groove at the contact position with the surface of the transmission belt 133, and the size of the through groove is larger than the outer wall size of the transmission belt 133.

[0042] When the transmission belt 133 rotates, it slides through the slot in the connecting plate 141 without affecting the transmission effect of the transmission belt 133.

[0043] Please refer to this carefully. Figure 7 and Figure 8 Support rods are installed between the two ends of the workpiece placement box 150 cavity and the two sets of gears 162. The two ends of the support rods are fixedly installed to the two ends of the workpiece placement box 150 cavity through bearings. The outer wall of the support rods is fixed to the end of the gears 162.

[0044] When gear 162 comes into contact with gear plate 169, it causes gear 162 to rotate within the cavity of workpiece placement box 150 via bearing.

[0045] Please refer to this carefully. Figure 7 and Figure 8 A travel groove is provided at the contact position between one end of the second L-shaped block 165 and the surface of the first L-shaped block 164, and a sliding rod is installed in the travel groove, which passes through the second L-shaped block 165 and extends to both ends of the travel groove. The upper end of the second L-shaped block 165 is fixedly installed to the closing door 166 by bearings, and a telescopic spring 145 fixed to the end of the second L-shaped block 165 is sleeved on the outer wall of the sliding rod.

[0046] When the second L-shaped block 165 and the first L-shaped block 164 move, they cause the upper bearing of the second L-shaped block 165 to perform a coordinated closing and opening movement of the closing door 166.

[0047] Please refer to this carefully. Figure 7 and Figure 8 The movable plate 163 has a limiting rod that is fixedly installed in the push cavity 161, and the limiting rod is circular in shape.

[0048] The moving plate 163 is restricted by the limiting rod when it moves, and a passage groove is provided in the workpiece placement box 150 at the contact position with the surface of the moving plate 163, so that the moving plate 163 moves more smoothly.

[0049] Please refer to this carefully. Figure 6 Two sets of mounting blocks are installed at the contact positions between the two ends of the filter plate 1492 and the collection box 149, and the collection box 149 has a mounting groove at the contact position with the surface of the mounting block.

[0050] The filter plate 1492 can be quickly slidably installed inside the collection box 149 via the mounting blocks on both sides.

[0051] Please refer to this carefully. Figure 6The upper end of the collection box 149 is equipped with a cover plate, and a rubber block is installed at the contact position between the cover plate and the upper end of the collection box 149.

[0052] By pulling upwards to open the cover, the filter plate 1492 installed inside the collection box 149 can be quickly retrieved.

[0053] During use, when cleaning the inspection surface of the workpiece, the motor 132 rotates the first rotating roller 134 at the other transmission end of the transmission belt 133 connected to the outer wall, causing the first connecting rod 135 at the other end to rotate simultaneously. This causes the sliding rod 136 installed inside the first connecting rod 135 to slide, and simultaneously causes the limiting block 139 at one end of the sliding rod 136 to swing along the fixed rod 138 passing through it on both sides. This causes the second rotating roller 1391 and the brush rod 1392, which are fixed at both ends of the fixed rod 138, to swing accordingly. This allows the brush rod 1392 to clean the surface dust and impurities of the workpiece placed in the workpiece placement box 150 below, preventing the workpiece from being inspected. Dust obstructs the inspection process, affecting its effectiveness. During dust collection, the drive belt 133 rotates, driving the crank connecting rod 146 mounted on the other end of the first rotating roller 134 to rotate. This causes the positioning rod 147 and ejector rod 143 to descend, allowing the ejector rod 143 and piston plate 144 to slide within the piston cylinder 142. Simultaneously, the air inside the piston cylinder 142 is compressed, and the one-way valve in the discharge pipe closes while the one-way valve in the connecting pipe 148 opens. As the ejector rod 143 presses down into the piston cylinder 142, the dust cleaned from the workpiece surface in the workpiece placement box 150 is collected through a dust suction port 1491 at one end of the collection box 149. The workpiece is drawn in and blocked by the filter plate 1492, causing larger impurities to fall into the collection box 149, while smaller impurities and dust are adsorbed into the filter plate 1492, achieving self-collection of dust and preventing dust from being stirred up and splashed out. The filter plate 1492 can be cleaned by removing the cover. When the workpiece inspection is completed and the workpiece is pushed out, the motor 132 drives the lead screw 180 to rotate, causing the outer wall of the lead screw 180, which is sleeved with the workpiece placement box 150, to move downwards towards the laser scanner 120, so that the laser scanner 120 can detect the flatness of the workpiece. When the workpiece placement box 150 continues to move and causes the gear 162 to contact the toothed plate 169, the toothed plate 169... 9. Rotate and extend the movable plate 163 between the two sets of toothed plates 169 to push the workpiece out of the workpiece placement box 150. At the same time, when the movable plate 163 moves, it causes the first L-shaped block 164 and the second L-shaped block 165 installed at the bottom to extend outward. Simultaneously, it causes the closing door 166 installed on the upper bearing of the second L-shaped block 165 to open, causing the workpiece in the workpiece placement box 150 to slide down through the slide groove 167 to the limiting plate 168, completing the detection of the flatness of the workpiece. The workpiece after the detection can be automatically pushed out to the limiting plate 168, which is convenient for quick picking up and taking out of the workpiece. All parts not involved in this device are the same as or can be implemented by existing technology.

[0054] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the invention and are not intended to limit it. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the invention, but such modifications, substitutions, and variations are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A 3D line-scan flatness inspection platform comprising a base plate (100), characterized in that: The upper end of the bottom plate (100) is provided with a machine shell (110), and the lower end of the machine shell (110) is provided with a laser scanner (120). The upper end of the bottom plate (100) is provided with a workpiece table (170) below the machine shell (110). The side of the workpiece table (170) away from the machine shell (110) is provided with two sets of cleaning assemblies (130). The upper end of the workpiece table (170) is slidably provided with a workpiece placing box (150) close to the side of the two sets of cleaning assemblies (130). The workpiece placing box (150) is provided with a pushing assembly (160). The cleaning assembly (130) is provided with a collecting assembly (140). The inside bearing of the workpiece table (170) is provided with a lead screw (180). The cleaning assembly (130) comprises a machine box (131) fixedly installed on the bottom plate (100) and close to one side of the workpiece table (170), a motor (132) is installed in the machine box (130), a lead screw (180) is installed on the output end of the motor (132) through a shaft coupling, a transmission belt (133) is sleeved on the outer wall of the output end of the motor (132), one end of the transmission belt (133) is sleeved with a first rotating roller (134) installed on the inner wall of the machine box (131) and penetrating through the outer side of the machine box (131), the other end of the first rotating roller (134) is fixedly installed with a first connecting rod (135) close to one side of the machine box (131), a sliding rod (136) is sleeved on the inner wall of the first connecting rod (135), two groups of mounting plates (137) are fixedly installed on one end of the machine box (131) and close to the upper and lower sides of the sliding rod (136), a limiting block (139) is fixedly installed on one end of the sliding rod (136), a fixed rod (138) penetrating through the inner wall of the limiting block (139) is installed between the mounting plates (137), a second rotating roller (1391) is rotatably sleeved on the outer wall of the fixed rod (138), the two ends of the second rotating roller (1391) are fixedly connected with the end portions of the mounting plates (137) through bearings, and a brush rod (1392) is fixedly installed on the outer wall of the second rotating roller (1391) and close to one side of the workpiece placing box (150); the pushing assembly (160) comprises a pushing cavity (161) formed in one side of the inner wall of the workpiece placing box (150), two groups of gears (162) extending out of the outer side of the workpiece placing box (150) are installed at the two ends in the pushing cavity (161), a moving plate (163) in contact with the surface of the gears (162) is installed between the two groups of gears (162), a first L-shaped block (164) is installed at the bottom end of the moving plate (163) in the pushing cavity (161), a second L-shaped block (165) in contact with the bottom end of the closing door (166) is installed at the two ends of the first L-shaped block (164), two groups of closing doors (166) are rotatably installed at one end of the workpiece placing box (150), a sliding groove (167) is formed at one end of the workpiece table (170), a limiting plate (168) in contact with the contact position of the sliding groove (167) is installed on the upper end of the bottom plate (100), and two groups of toothed plates (169) in contact with the surface of the gears (162) are installed at the two ends of the inner wall of the machine shell (110); a stroke groove is formed at the surface contact position of one end of the second L-shaped block (165) and the first L-shaped block (164), a sliding rod penetrating through the second L-shaped block (165) and extending to the two ends in the stroke groove is installed in the stroke groove, the upper end of the second L-shaped block (165) is fixedly installed with the closing door (166) through a bearing, and a telescopic spring (145) fixedly installed at the end portion of the second L-shaped block (165) is sleeved on the outer wall of the sliding rod.The inside of the moving plate (163) is provided with a limiting rod fixedly installed in the pushing cavity (161), and the limiting rod is in a circular shape.

2. The 3D line-scan inspection flatness inspection platform of claim 1, wherein: The collecting assembly (140) comprises a piston cylinder (142) fixedly installed on the inner wall of the machine box (131) and located below the connecting plate (141). The first rotating roller (134) is fixedly installed at the other end in the machine box (131). The piston cylinder (142) is slidably provided with an ejection rod (143) extending out of the piston cylinder (142) and fixedly connected with the end bearing of the crank connecting rod (146). The ejection rod (143) is installed with a piston sheet (144) at one end in the piston cylinder (142). The inside bottom end of the piston cylinder (142) is installed with a telescopic spring (145) fixedly connected with the end of the piston sheet (144). The ejection rod (143) is installed with a positioning rod (147) between one end and the crank connecting rod (146). The other end of the piston cylinder (142) is installed with a connecting pipe (148) penetrating the machine box (131) and the mounting plate (137). The upper end of the workpiece table (170) is fixedly installed with two sets of collecting boxes (149) close to the sides of the workpiece placing box (150). One end of the collecting box (149) is connected with the connecting pipe (148). One end of each set of collecting boxes (149) is provided with a dust suction port (1491). The inside of the collecting box (149) is slidably provided with a filter plate (1492).

3. The 3D line-scan inspection flatness inspection platform of claim 2, wherein: The one end of the piston cylinder (142) is provided with a circular hole at the position connected with the connecting pipe (148). The circular hole is provided with a one-way valve. The one end of the piston cylinder (142) is installed with a discharge pipe penetrating and extending to the outside of the machine box (131). The discharge pipe is provided with a one-way valve at the position connected with the piston cylinder (142).

4. The 3D line-scan inspection flatness inspection platform of claim 2, wherein: The inner wall of the connecting plate (141) is provided with a through groove at the position contacting the surface of the transmission belt (133). The size of the through groove is greater than the size of the outer wall of the transmission belt (133).

5. The 3D line-scan inspection flatness inspection platform of claim 1, wherein: The inside of the workpiece placing box (150) is provided with a support rod between the two ends and the two gears (162). The support rod is fixedly installed at the two ends through bearings in the cavity of the workpiece placing box (150). The outer wall of the support rod is fixedly connected with the end of the gear (162).

6. The 3D line-scan inspection flatness inspection platform of claim 2, wherein: The two ends of the filter plate (1492) are provided with two sets of mounting blocks at the positions contacting the inside of the collecting box (149). The collecting box (149) is provided with a mounting groove at the position contacting the surface of the mounting block.

7. The 3D line-scan inspection flatness inspection platform of claim 2, wherein: The upper end of the collecting box (149) is provided with a cover plate, and a rubber block is arranged at the position where the cover plate contacts the upper end of the collecting box (149).

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