R-angle laser measuring device for parts

Abstract

The invention discloses an R-angle laser measuring device for parts, and relates to the field of R-angle measurement of the parts, the R-angle laser measuring device comprises a workbench, a frame and a laser measuring assembly, a feeding mechanism is rotatably arranged in the workbench, a positioning plate is fixedly mounted on the inner wall of the workbench, a positioning air bag is mounted at the top of the positioning plate, and the positioning air bag is fixedly mounted on the frame. The two sides of the laser measuring assembly are connected with sliding blocks, piston mechanisms matched with the sliding blocks are arranged in the frame, the bottom of the workbench is connected with an air pipe communicated with the piston mechanisms, and the top of the air pipe is provided with a second branch pipe. Gas in a piston cylinder is discharged into a second branch pipe through a gas pipe, a positioning air bag limits a part, an intelligent one-way valve is opened when the positioning air bag is located in the part and is completely expanded, and the part is measured by a laser measuring assembly through a spray head; and dust removal treatment can be carried out on parts to be measured.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of R angle measurement of parts, in particular to an R angle laser measuring device for parts. BACKGROUND

[0002] The R angle of the part usually refers to the fillet radius of the corner of the part, also known as the chamfer radius. The R angle refers to the corner or edge of the part, which is rounded or chamfered to avoid sharp edges, thereby reducing stress concentration and improving the strength and durability of the part. It also helps to reduce wear and improve assembly accuracy. In actual life, the size of the R angle of the part is usually determined according to the design requirements and use of the part.

[0003] The existing R angle detection of parts usually involves high-precision angle and profile measurement using a laser scanner. When measuring the part with a laser scanner, a fixture is used to secure the part at the bottom of the laser scanner to prevent the workpiece from moving during scanning. However, when facing plastic products with hollow interiors, if the clamping force is too large during clamping, the plastic product itself may deform or be damaged, affecting subsequent detection. In addition, the workpiece needs to be dusted before detection, which helps to improve the accuracy of laser reflection. Furthermore, the subsequent work of repeatedly disassembling the fixture is too wasteful of manpower and resources.

[0004] In summary, the above laser scanner may cause the plastic product itself to deform or be damaged when clamping the fixture, affecting subsequent detection. In addition, dusting is required before detection, and the subsequent work of repeatedly disassembling the fixture is too wasteful of manpower and resources. SUMMARY

[0005] Therefore, the present application aims to provide an R angle laser measuring device for parts to solve the technical problem of the clamping of the fixture causing the plastic product itself to deform or be damaged, affecting subsequent detection, and the need for dusting before detection, as well as the subsequent work of repeatedly disassembling the fixture being too wasteful of manpower and resources.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solution: an R angle laser measuring device for parts, comprising a workbench, a frame and a laser measuring assembly, wherein the laser measuring assembly is slidably arranged on the inner wall of the frame, the workbench is rotatably provided with a feeding mechanism inside, and the inner wall of the workbench is fixedly installed with a positioning plate at the bottom of the laser measuring assembly, and the top of the positioning plate is installed with a positioning air bag. Both sides of the laser measuring assembly are connected with sliding blocks, and a piston mechanism matched with the sliding blocks is arranged in the frame, the bottom of the workbench is connected with an air pipe in communication with the piston mechanism, and the top of the air pipe is provided with a second branch pipe in communication with the positioning air bag at the other end of the second branch pipe; The top of the workbench is provided with a cleaning door on one side of the frame, and a plurality of spray heads are arranged on the inner wall of the cleaning door, the outer wall of the air pipe is further provided with a first branch pipe in communication, and an intelligent one-way valve is installed between the first branch pipe and the air pipe, and the other end of the first branch pipe is in communication with the spray head.

[0007] By adopting the above technical scheme, the gas in the piston cylinder is discharged into the second branch pipe through the air pipe, and since the positioning air bag is in communication with the second branch pipe, the positioning air bag will inflate in the hollow of the measured part to achieve the positioning of the part itself. When the positioning air bag is fully inflated in the part, the intelligent one-way valve is opened, and at this time, the excess gas is discharged into the inner wall of the cleaning door through the first branch pipe, and the dust on the part to be measured is removed through the spray head while the laser measuring assembly measures the part.

[0008] The application further provides that the inside of the first branch pipe is rotatably provided with an impeller, and the impeller is eccentrically arranged in the first branch pipe, the top of the impeller is connected with a rotating shaft, and the other end of the rotating shaft penetrates the first branch pipe and is connected with a light barrier door at one end of the cleaning door, wherein the light barrier door is located between the frame and the cleaning door.

[0009] As preferred, when the gas removes the dust on the part through the first branch pipe, the impeller will shield one end of the cleaning door under the driving of the gas, which reduces the flow of dust to the laser measuring body during the gas cleaning process, effectively improves the measurement accuracy, and when the gas flows back into the piston cylinder, the light barrier door is in an open state, thereby facilitating the conveying of the cleaned parts to the positioning plate through the feeding mechanism.

[0010] The application further provides that the piston mechanism includes a piston rod, a sealing plug and a piston cylinder, the bottom of the sliding block is connected with the piston rod, and the piston cylinder is located at the connection between the frame and the workbench, and one end of the piston rod is connected with the sealing plug in the piston cylinder.

[0011] As preferred, when the sliding block slides downward under the action of the laser measuring assembly, the piston rod at the bottom is extruded, so that the piston rod drives the sealing plug in the piston cylinder to slide downward, thereby discharging the gas in the piston cylinder into the air pipe at the bottom.

[0012] The frame is provided with a gas cylinder at the top, which is used to drive the laser measuring assembly at the output end to slide in the vertical direction.

[0013] Preferably, the laser measuring assembly is controlled by the staff to be located at different positions on the inner wall of the frame through the action of the gas cylinder, so that the exhaust capacity of one end of the piston cylinder is adjusted, thereby improving the practicability of the device as a whole.

[0014] The inner wall of the frame is symmetrically provided with a sliding groove matched with the sliding block, and the inner wall of the sliding groove is smooth.

[0015] Preferably, the laser measuring assembly is controlled by the staff to be located at different positions on the inner wall of the frame through the action of the gas cylinder, so that the exhaust capacity of one end of the piston cylinder is adjusted, thereby improving the practicability of the device as a whole.

[0016] The inner wall of the frame is symmetrically provided with a sliding groove matched with the sliding block, and the inner wall of the sliding groove is smooth.

[0017] Preferably, the laser measuring assembly is controlled by the staff to be located at different positions on the inner wall of the frame through the action of the gas cylinder, so that the exhaust capacity of one end of the piston cylinder is adjusted, thereby improving the practicability of the device as a whole.

[0018] The connecting part of the rotating shaft and the first branch pipe is in a sealed state.

[0019] Preferably, the sealed state prevents gas from leaking through the rotating shaft, further improving the stability of gas transmission.

[0020] The feeding mechanism comprises a driving assembly, a transmission roller and a feeding belt, one end of the workbench is connected with the driving assembly, the output end of the driving assembly is connected with the transmission roller, and the outer wall of the transmission roller is sleeved with the feeding belt.

[0021] Preferably, the driving assembly drives the transmission roller to rotate, so that the feeding belt drives the parts at the top to be conveyed, and the different grooves on the outer wall of the transmission roller facilitate the conveying and measuring of plastic hollow parts of different sizes.

[0022] The bottom of the workbench is symmetrically provided with a plurality of supporting legs.

[0023] As preferred, the workbench is supported by the supporting legs, so that the ground dirt does not contaminate the outer surface of the parts.

[0024] The positioning air bag is made of multiple layers of materials, and the outer wall of the positioning air bag is provided with a rough surface.

[0025] As preferred, the positioning air bag is made of materials such as aramid and high-density polyethylene, and the multiple layers increase the overall strength of the positioning air bag, effectively preventing the parts from being pierced by sharp objects inside, and the rough surface increases the sliding friction between the positioning air bag and the inside of the parts, effectively preventing the parts from deviating during measurement.

[0026] In summary, the present application has the following advantages: 1. The feeding mechanism is provided on the workbench, and the hollow plastic parts to be measured are conveyed to the positioning plate by the feeding mechanism, and then the laser measurement assembly is driven to move downward. In this process, the slider drives the piston rod to slide downward, so that the gas in the piston cylinder is discharged into the second branch pipe through the air pipe. Since the positioning air bag is in communication with the second branch pipe, the positioning air bag will inflate in the hollow part to be measured, thereby limiting the parts themselves. This process can effectively prevent the parts from deforming during limiting, and further ensures the accuracy of the laser measurement assembly. 2. The first branch pipe is connected to one side of the air pipe, and an intelligent one-way valve is arranged at the connection between the first branch pipe and the air pipe. During the downward sliding of the laser measurement assembly, the gas in the piston cylinder is first discharged into the positioning air bag through the second branch pipe, and then the intelligent one-way valve is opened when the positioning air bag is fully inflated inside the parts. At this time, the excess gas is discharged into the inner wall of the cleaning door through the first branch pipe. At this time, the inner wall of the cleaning door is placed with the parts to be measured. Thus, the inner wall of the nozzle can be used to measure the parts to be measured by the laser measurement assembly, and also can be used to clean the parts to be measured, saving a lot of manpower and material resources, and speeding up the overall detection efficiency. 3. The impeller is rotatably arranged in the first branch pipe, and the top of the impeller is connected to the lightweight door of one end of the cleaning door through the shaft. When the gas is used to clean the parts through the first branch pipe, the lightweight door will be shielded from one end of the cleaning door by the gas. In this process, the flow of dust to the laser measurement body during the gas cleaning process is reduced, effectively improving the measurement accuracy, and when the gas flows back to the piston cylinder, the lightweight door is in an open state, so that the cleaned parts can be conveyed to the positioning plate by the feeding mechanism. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is a perspective view of the present application; Figure 2 is a schematic diagram of the light-weight door closing structure of the present application; Figure 3 is a schematic diagram of the light-weight door opening structure of the present application; Figure 4 is a schematic diagram of the positioning air bag structure of the present application; Figure 5 is a perspective view of the present application Figure 1 is an enlarged view of A in the present application; Figure 6 is a front view of the present application; Figure 7 is a sectional view of the first branch pipe of the present application; Figure 8 is a schematic diagram of the cleaning door structure of the present application; Figure 9 is a sectional view of the air pipe of the present application; Figure 10 is a perspective view of the present application Figure 9 is an enlarged view of B in the present application; Figure 11 is a schematic diagram of the air pipe and the first branch pipe structure of the present application.

[0028] Explanation of reference signs: 1, workbench; 2, frame; 3, air cylinder; 4, feeding mechanism; 5, chute; 6, air pipe; 7, first branch pipe; 8, rotating shaft; 9, cleaning door; 10, light-weight door; 11, spray head; 12, positioning plate; 13, laser measurement assembly; 14, positioning air bag; 15, second branch pipe; 16, impeller; 17, sliding block; 18, piston rod; 19, sealing plug; 20, piston cylinder; 21, intelligent one-way valve. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present application, and cannot be understood as a limitation of the present application.

[0030] The embodiments of the present application will be described below according to the overall structure of the present application.

[0031] First embodiment: Please refer to Figures 1-11The R angle laser measuring device for parts shown, including workbench 1, frame 2, feeding mechanism 4, laser measuring assembly 13, limiting mechanism, dust removal mechanism and piston mechanism, the top of frame 2 is provided with cylinder 3, which is used to drive the output end of laser measuring assembly 13 to slide in the vertical direction, and feeding mechanism 4 is rotatably arranged on workbench 1, and the inner wall of workbench 1 is fixedly installed with positioning plate 12 at the bottom of laser measuring assembly 13, positioning air bag 14 is installed at the top of positioning plate 12, the plastic hollow parts to be measured are conveyed to positioning plate 12 by starting feeding mechanism 4, and then the output end of laser measuring assembly 13 is driven to slide downward under the action of cylinder 3; The two sides of laser measuring assembly 13 are connected with sliding block 17, the inner wall of frame 2 is symmetrically provided with sliding groove 5 matched with sliding block 17, the stability of laser measuring assembly 13 sliding in frame 2 is facilitated by the cooperation of sliding block 17 and sliding groove 5, the inclination of laser measuring assembly 13 is prevented to avoid measurement error, at the same time, piston rod 18 is connected at the bottom of sliding block 17, and piston cylinder 20 is connected at the connection between frame 2 and workbench 1, one end of piston rod 18 is connected with sealing plug 19 in piston cylinder 20, when sliding block 17 slides downward under the action of laser measuring assembly 13, piston rod 18 at the bottom is extruded, so that sealing plug 19 in piston cylinder 20 is driven to slide downward, thereby realizing the discharge of gas in piston cylinder 20 to the bottom; Because the bottom of workbench 1 is connected with gas pipe 6 communicated with piston cylinder 20, the gas in piston cylinder 20 is discharged back to gas pipe 6, the top of gas pipe 6 is provided with second branch pipe 15, first branch pipe 7 is connected at one side thereof, intelligent one-way valve 21 is installed between first branch pipe 7 and gas pipe 6, the other end of second branch pipe 15 is communicated with positioning air bag 14, during the discharge of gas from piston cylinder 20 to gas pipe 6, intelligent one-way valve 21 is in closed state at this time, so that the gas in gas pipe 6 is discharged to positioning air bag 14 through second branch pipe 15, therefore, positioning air bag 14 is inflated at the hollow part of the part to be measured, limiting the part itself, which can effectively prevent the deformation of the part during limiting, further ensuring the accuracy of laser measuring assembly 13; When the outer wall of the positioning air bag 14 is in full contact with the inner wall of the plastic hollow component part, at this time the intelligent one-way valve 21 is in the open state, because the cleaning door 9 is arranged on one side of the frame 2 at the top of the workbench 1, and a plurality of spray heads 11 are arranged on the inner wall of the cleaning door 9, and the other end of the first branch pipe 7 is connected with the spray head 11, therefore when the intelligent one-way valve 21 is opened, the excess gas in the air pipe 6 is discharged to the spray head 11 through the first branch pipe 7, at this time the inner wall of the cleaning door 9 places the component part to be measured, thereby realizing the dust removal treatment of the component part to be measured while the laser measurement assembly 13 measures the component part through the spray head 11 on the inner wall, saving a large amount of manpower and material resources in the subsequent process, and accelerating the overall detection efficiency. In the above structure, the intelligent one-way valve 21 is a prior art, which is composed of a valve body, a valve seat, a valve core, an electromagnetic valve and a spring, and the electromagnetic valve part is composed of a coil, an iron core and a spring. The coil is controlled by an electric signal to generate a magnetic field to move the iron core. When the electric signal is input, the coil of the electromagnetic valve is electrified to generate a magnetic field to attract the iron core to move and change the position of the valve core, thereby opening or closing the valve port.

[0032] Subsequently, after the measurement of the laser measurement assembly 13 is completed, the cylinder 3 drives it to slide upward, at this time the sliding block 17 drives the piston rod 18 to move upward under the action of the sliding groove 5, at this time the intelligent one-way valve 21 is closed, the air pipe 6 first draws the gas in the positioning air bag 14 under the action of the second branch pipe 15, at this time the positioning air bag 14 releases the limiting work on the component part, thereby the staff can directly take it down, saving a large amount of disassembly burden in the subsequent process, when the positioning air bag 14 is restored, at this time the intelligent one-way valve 21 is opened, thereby the external gas is extracted into the piston cylinder 20 through the spray head 11.

[0033] In the above embodiment, please refer to Figure 8 The plurality of groups of spray heads 11 arranged on the inner wall of the cleaning door 9 are arranged in a surrounding manner, and the spray heads 11 are detachably arranged, the spray heads 11 arranged in a surrounding manner facilitate the overall dust removal treatment of the component part, improve the overall dust removal effect, and ensure the accuracy of the measurement of the laser measurement assembly 13 in the subsequent process, and the detachable arrangement facilitates the regular disassembly and maintenance of the spray heads 11 by the staff.

[0034] In the above embodiment, please refer to Figure 4The positioning air bag 14 is made of a plurality of materials, including aramid, high-density polyethylene and the like, the plurality of layers increase the overall strength of the positioning air bag 14, and the outer wall of the positioning air bag 14 is provided with a rough surface, and the rough surface increases the sliding friction between the positioning air bag 14 and the inside of the part, effectively preventing the part from being offset during measurement.

[0035] The second embodiment is as follows: Please refer to Figure 7 The R angle laser measuring device for the part is similar to the first embodiment, wherein the impeller 16 is arranged in the first branch pipe 7, and the impeller 16 is eccentrically arranged in the first branch pipe 7, so that the impeller 16 rotates when the gas passes through the first branch pipe 7, and the top of the impeller 16 is connected with the rotating shaft 8, and the other end of the rotating shaft 8 penetrates the first branch pipe 7 and is connected with the light barrier door 10 at one end of the cleaning door 9, wherein the light barrier door 10 is located between the frame 2 and the cleaning door 9, so that the light barrier door 10 is shielded from the cleaning door 9 by the impeller 16 driven by the gas, thereby reducing the flow of dust to the laser measuring assembly 13 during the gas cleaning process, effectively improving the measurement accuracy during the measurement process, and the impeller 16 reversely rotates when the piston cylinder 20 extracts the external gas backflow, so that the light barrier door 10 is in an open state by the action of the rotating shaft 8, thereby facilitating the cleaned part to be conveyed to the positioning plate 12 by the feeding mechanism 4.

[0036] In specific work, the cleaned plastic hollow part is conveyed to the positioning plate 12 by the feeding mechanism 4, and then the cylinder 3 drives the laser measuring assembly 13 at the output end to slide downward, so that the sliding blocks 17 at both ends of the laser measuring assembly 13 extrude the piston rod 18 at the bottom, and the gas in the piston cylinder 20 is conveyed into the gas pipe 6 by the cooperation of the piston rod 18 and the sealing plug 19, and the gas is discharged into the positioning air bag 14 in the positioning plate 12 by the action of the intelligent one-way valve 21, so that the positioning air bag 14 is inflated in the inside of the part, and the part is limited, which can effectively prevent the part from being deformed during the limiting process. When the gas in the positioning air bag 14 is filled, the intelligent one-way valve 21 is opened, at this time, the gas in the air pipe 6 will be discharged into the first branch pipe 7, because one end of the first branch pipe 7 is communicated with the nozzle 11 on the inner wall of the cleaning door 9, so the gas will pass through the nozzle 11 on the inner wall of the cleaning door 9 to carry out dust removal work on the parts to be measured, in this process, the measurement of the parts by the laser measurement assembly 13 is realized at the same time, and the dust removal treatment of the parts to be measured is also realized, a large amount of manpower and material resources in the subsequent process is saved, and the overall detection efficiency is accelerated, then after the measurement is completed, the feeding mechanism 4 transports the parts to one side, and the parts just treated by the dust removal are transported to the positioning plate 12 again, the above work process is repeated until the measurement of all the parts is completed.

[0037] Although the embodiments of the present application have been shown and described, the specific embodiments are merely illustrative of the present application, and are not intended to limit the present application, and the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner, and those skilled in the art can make modifications, replacements and variations of the embodiments without creative contribution after reading the specification, but as long as they are within the scope of the claims of the present application, they are protected by the patent law.

Claims

1. A laser measuring device for the radius (R) angle of a component, comprising a worktable (1), a frame (2), and a laser measuring assembly (13), wherein the laser measuring assembly (13) is slidably disposed on the inner wall of the frame (2), characterized in that: The inner rotation of the workbench (1) is provided with a feeding mechanism (4), and the inner wall of the workbench (1) is fixedly installed with a positioning plate (12) at the bottom of the laser measuring assembly (13), and the top of the positioning plate (12) is installed with a positioning air bag (14). The both sides of the laser measuring assembly (13) are connected with sliding blocks (17), and the piston mechanism matched with the sliding blocks (17) is arranged in the frame (2), the bottom of the workbench (1) is connected with an air pipe (6) in communication with the piston mechanism, the top of the air pipe (6) is provided with a second branch pipe (15), and the other end of the second branch pipe (15) is in communication with the positioning air bag (14). The top of the workbench (1) is provided with a cleaning door (9) on one side of the frame (2), and a plurality of spray heads (11) are arranged on the inner wall of the cleaning door (9), the outer wall of the air pipe (6) is also connected with a first branch pipe (7), and the first branch pipe (7) and the air pipe (6) are connected with an intelligent one-way valve (21), and the other end of the first branch pipe (7) is connected with the spray head (11).

2. A device for R-angle laser measurement of a part according to claim 1, characterized in that: The inner rotation of the first branch pipe (7) is provided with an impeller (16), and the impeller (16) is eccentrically arranged in the first branch pipe (7), the top of the impeller (16) is connected with a rotating shaft (8), and the other end of the rotating shaft (8) penetrates the first branch pipe (7) and is connected with a light barrier (10) at one end of the cleaning door (9), wherein the light barrier (10) is located between the frame (2) and the cleaning door (9).

3. A device for R-angle laser measurement of a part according to claim 1, characterized in that: The piston mechanism comprises a piston rod (18), a sealing plug (19) and a piston cylinder (20), the bottom of the sliding block (17) is connected with the piston rod (18), and the connecting part of the piston cylinder (20) in the frame (2) and the workbench (1) is connected with the piston rod (18), one end of the piston rod (18) is connected with the sealing plug (19) in the piston cylinder (20).

4. The R-angle laser measuring device for a component part according to claim 1, characterized in that: The top of the frame (2) is provided with an air cylinder (3), and the air cylinder (3) is used to drive the laser measuring assembly (13) at the output end to slide in the vertical direction.

5. The R-angle laser measuring device for a component part according to claim 1, characterized in that: The inner wall of the frame (2) is symmetrically provided with a sliding groove (5) matched with the sliding block (17), and the inner wall of the sliding groove (5) is smooth.

6. The R-angle laser measuring device for a component part according to claim 1, characterized in that: The spray head (11) is arranged in a plurality of groups on the inner wall of the cleaning door (9), and the spray head (11) is detachably arranged.

7. A device for R-angle laser measurement of a part according to claim 2, characterized in that: The connecting part of the rotating shaft (8) and the first branch pipe (7) is sealed.

8. The R-angle laser measuring device for a component part according to claim 1, characterized in that: The feeding mechanism (4) comprises a driving assembly, a transmission roller and a feeding belt, one end of the workbench (1) is connected with the driving assembly, the output end of the driving assembly is connected with the transmission roller, and the outer wall of the transmission roller is sleeved with the feeding belt, wherein the outer wall of the transmission roller is uniformly provided with a plurality of grooves for the feeding belt to be clamped into.

9. The R-angle laser measuring device for a component part according to claim 1, characterized in that: The bottom of the workbench (1) is symmetrically provided with a plurality of supporting legs.

10. The R-angle laser measuring device for parts according to claim 1, characterized in that: The positioning air bag (14) is composed of multiple layers of materials, and the outer wall of the positioning air bag (14) is provided with a rough surface.

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