Casting part forming size inspection system

Abstract

The invention discloses a casting part forming size inspection system, and relates to the technical field of size inspection. A lens supporting gear ring rotation and revolution mechanism is adopted, transmission of a center gear and a gear ring is combined, and a casting part is driven to be flexibly positioned. The vertical concave-convex lens group and the side optical assembly work cooperatively, the profile of the casting part is captured accurately through light collimation and shadow imaging, and the receiving precision of the sensor is further improved through the condensing lens. Continuous detection is achieved through motor control, synchronous operation is supported through the double-support lens design, and efficiency is greatly improved. The light shield effectively isolates external light interference and ensures measurement reliability. The system flexibly adapts to detection requirements of various casting parts, overcomes the defects of low precision and poor efficiency of the traditional technology, and is suitable for high-precision industrial detection scenes.

Description

Technical Field

[0001] The present invention relates to the technical field of dimensional inspection, and in particular to a casting forming dimensional inspection system. Background Art

[0002] The existing casting forming dimensional inspection technologies mainly rely on manual measurement or traditional optical measurement equipment. Manual measurement usually uses tools such as vernier calipers and micrometers to obtain dimensional data by manually contacting the surface of the casting. This method is cumbersome to operate, has low measurement efficiency, and is limited by the technical level of the operator, easily introducing human errors and resulting in insufficient measurement accuracy. Especially for castings with complex shapes, it is difficult to achieve comprehensive detection. Traditional optical measurement equipment, such as fixed projectors or single-direction laser scanners, usually can only obtain the contour information of the casting from a single angle and cannot achieve multi-angle and three-dimensional dimensional detection. In addition, most of these devices have fixed structures and lack flexibility, and cannot meet the detection requirements of castings with different sizes and shapes. In the prior art, the detection process often requires multiple adjustments of the casting position, with complex operations, long time consumption, and it is difficult to achieve automatic continuous detection. Summary of the Invention

[0003] To overcome the defects of the above-mentioned prior art, the present invention provides the following technical solution: A casting forming dimensional inspection system, including a supporting annular seat, on which a bottom rotating plate is rotatably installed, a placement flat plate is fixedly installed on the bottom rotating plate, two symmetrically arranged supporting lens tooth rings are rotatably installed between the opposite surfaces of the bottom rotating plate and the placement flat plate, through holes are opened at the positions corresponding to the two supporting lens tooth rings on the bottom rotating plate and the placement flat plate, supporting lenses are fixedly installed on both of the two supporting lens tooth rings, a groove is opened on the supporting annular seat, and a permanent magnetic friction plate that is magnetically frictionally engaged with the bottom rotating plate is slidably arranged in the groove; The two supporting lens tooth rings are meshed and driven by a central gear. The central gear is concentrically arranged with the bottom rotating plate and the placement flat plate, and the central gear is rotationally matched with the placement flat plate and the bottom rotating plate; At the edge position between the opposite surfaces of the bottom rotating plate and the placement flat plate, a tooth ring is also rotatably installed, and the tooth ring is meshed and driven with the two supporting lens tooth rings.

[0004] 2. The casting forming dimensional inspection system according to claim 1, wherein: The supporting annular seat is fixedly installed on a supporting seat, a control motor is fixedly installed on the supporting seat, a tooth ring support frame is also rotatably installed on the supporting annular seat, the tooth ring support frame is fixedly matched with the tooth ring, and the tooth ring support frame is in transmission cooperation with the output shaft of the control motor through a transmission belt.

[0005] 3. A casting forming size inspection system according to claim 2, characterized in that: a rotating motor and an adjusting motor are also fixedly installed on the support base, wherein the output shaft of the rotating motor is fixedly fitted with a central gear, and an adjusting lead screw is fixedly installed on the output shaft of the adjusting motor. A vertical lens slide rod is arranged in parallel on the side of the adjusting lead screw, and the vertical lens slide rod is fixedly installed on the support base. A vertical convex lens is arranged at the top of the adjusting lead screw and the vertical lens slide rod. The vertical convex lens is fixed on the vertical lens slide rod through a bracket, and the vertical convex lens is rotationally fitted with the adjusting lead screw through a bracket. A vertical concave lens is also arranged between the vertical convex lens and the support base. The vertical concave lens is slidably arranged on the vertical lens slide rod through a bracket, and the vertical concave lens is in threaded transmission cooperation with the adjusting lead screw through a bracket for adjusting the distance between the vertical convex lens and the vertical concave lens. And a through hole is opened at the position of the support base aligned with the vertical concave lens, wherein the vertical convex lens and the vertical concave lens are located at the edge position below the bottom rotating plate, so that the support lens can be aligned with the axes of the vertical convex lens and the vertical concave lens.

[0006] 4. A casting forming size inspection system according to claim 3, characterized in that: a platform plate is also fixedly installed on the support base, and the upper surface of the platform plate is flush with the upper surface of the placement plane plate. Side convex lenses and side condensing convex lenses are symmetrically arranged on the platform plate, and the side convex lenses and side condensing convex lenses are located at the edge position of the placement plane plate. Among them, a side concave lens and a side light-emitting diode are sequentially arranged on the side of the side convex lens away from the side condensing convex lens. The side light-emitting diode and the side concave lens are fixed on the platform plate, and a side image sensor is arranged on the side of the side condensing convex lens away from the side convex lens. The side image sensor is fixed on the platform plate.

[0007] 5. A casting forming size inspection system according to claim 4, characterized in that: a bottom light-shielding cover is sleeved outside the side light-emitting diode, side concave lens, side convex lens, side condensing convex lens and side image sensor. A top light-shielding cover is fixedly communicated with the bottom light-shielding cover. A vertical image sensor is fixed at the top end inside the top light-shielding cover. A vertical condensing convex lens is arranged below the vertical image sensor, and the vertical condensing convex lens is fixed on the inner wall of the top light-shielding cover. The vertical condensing convex lens is coaxially arranged with the vertical convex lens.

[0008] 6. A casting forming size inspection system according to claim 5, characterized in that: both the support base and the platform plate are fixedly installed above the base in an overhead manner, wherein the rotating motor is also fixedly fitted with the base, and a vertical light-emitting diode is fixedly installed at the bottom of the base directly below the vertical concave lens and the vertical convex lens.

[0009] 7. A casting forming size inspection system according to claim 6, characterized in that: a protective housing is fixedly installed on the base, a window plate is provided on the side of the protective housing, and the top light-shielding cover, the bottom light-shielding cover, and the platform plate are sleeved inside the protective housing.

[0010] The present invention has the following beneficial effects compared with the prior art: (1) Through the rotation and revolution cooperation of the two supporting lens rings of the present invention, combined with the transmission mechanism of the central gear and the ring gear, the casting can be driven to rotate and detect at multiple angles in the vertical and lateral directions. The cooperative work of the vertical convex lens, the vertical concave lens and the side optical components can capture the contour information of the casting from multiple directions, overcoming the limitations of traditional single-angle detection. This design significantly improves the comprehensiveness of detection, is particularly suitable for the three-dimensional size measurement of castings with complex shapes, and ensures the integrity and accuracy of measurement data; (2) The present invention adopts vertical light-emitting diodes, vertical convex and concave lens groups and side optical components, and through the light collimation and focusing mechanism, the light is accurately projected onto the image sensor. The vertical condenser convex lens and the side condenser convex lens further reduce the beam area and improve the receiving accuracy of the sensor. Compared with traditional equipment relying on rough optical projection, this system can accurately calculate the contour size of the casting through shadow imaging and pixel point analysis, significantly reducing the measurement error and meeting the requirements of high-precision industrial inspection; (3) Through the coordinated control of the rotation motor, the control motor and the adjustment motor of the present invention, the system realizes the automatic rotation, positioning and light adjustment of the casting. The casting can be automatically rotated from one supporting lens to the detection position, and after the detection is completed, it is moved to the window plate and taken out. At the same time, a new casting can be placed on the other supporting lens synchronously, realizing continuous operation. Compared with the traditional detection method that requires multiple manual adjustments, this system greatly improves the detection efficiency, reduces manual intervention, and is suitable for large-scale production scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0012] Figure 2 It is a schematic diagram of the light-shielding cover structure of the present invention.

[0013] Figure 3 It is a schematic diagram of the internal structure of the light-shielding cover of the present invention.

[0014] Figure 4 It is a schematic diagram of the structure at the support seat of the present invention.

[0015] Figure 5 It is a schematic diagram of the structure at the support ring seat of the present invention.

[0016] Figure 6 It is a schematic diagram of the structure at the bottom rotating plate of the present invention.

[0017] Figure 7 For the present invention Figure 6 Schematic diagram of the structure at position A in the present invention.

[0018] Figure 8 Schematic diagram of the structure at the support lens tooth ring of the present invention.

[0019] In the figure: 101 - base; 102 - protective housing; 103 - window plate; 104 - platform plate; 105 - top light shield; 106 - bottom light shield; 107 - side light-emitting diodes; 108 - side concave lenses; 109 - side convex lenses; 110 - vertical condenser convex lenses; 111 - vertical image sensors; 112 - side condenser convex lenses; 113 - side image sensors; 114 - support base; 115 - vertical light-emitting diodes; 116 - rotation motor; 117 - control motor; 118 - support ring seat; 119 - permanent magnet friction plate; 120 - bottom rotating plate; 121 - transmission belt; 122 - adjustment motor; 123 - vertical concave lenses; 124 - vertical convex lenses; 125 - vertical lens slide bar; 126 - adjustment screw rod; 127 - tooth ring support frame; 128 - tooth ring; 129 - support lens tooth ring; 130 - support lens; 131 - placement flat plate; 132 - center gear. Specific embodiments

[0020] The following combines the appended Figure 1-8 drawings and further illustrates the technical solution of the present invention through specific embodiments.

[0021] The present invention provides a casting forming size inspection system, including a support ring base 118. A bottom rotating plate 120 is rotatably installed on the support ring base 118. A placement flat plate 131 is fixedly installed on the bottom rotating plate 120. Two symmetrically arranged support lens gear rings 129 are rotatably installed between the opposite surfaces of the bottom rotating plate 120 and the placement flat plate 131. Through holes are provided at positions corresponding to the two support lens gear rings 129 on the bottom rotating plate 120 and the placement flat plate 131. Support lenses 130 are fixedly installed on both of the two support lens gear rings 129. A groove is provided on the support ring base 118, and a permanent magnet friction plate 119 that is magnetically frictionally engaged with the bottom rotating plate 120 is slidably arranged in the groove; The two support lens gear rings 129 are meshed and driven by a central gear 132. The central gear 132 is concentric with the bottom rotating plate 120 and the placement flat plate 131, and the central gear 132 is rotatably matched with the placement flat plate 131 and the bottom rotating plate 120; A gear ring 128 is also rotatably installed at the edge position between the opposite surfaces of the bottom rotating plate 120 and the placement flat plate 131. The gear ring 128 is meshed and driven with the two support lens gear rings 129. The support ring base 118 is fixedly installed on a support base 114. A control motor 117 is fixedly installed on the support base 114. A gear ring support frame 127 is also rotatably installed on the support ring base 118. The gear ring support frame 127 is fixedly engaged with the gear ring 128. The gear ring support frame 127 is in transmission cooperation with the output shaft of the control motor 117 through a transmission belt 121. A rotating motor 116 and an adjusting motor 122 are also fixedly installed on the support base 114. The output shaft of the rotating motor 116 is fixedly engaged with the central gear 132. An adjusting lead screw 126 is fixedly installed on the output shaft of the adjusting motor 122. A vertical lens slide bar 125 is arranged in parallel on the side of the adjusting lead screw 126. The vertical lens slide bar 125 is fixedly installed on the support base 114. A vertical convex lens 124 is provided at the top of the adjusting lead screw 126 and the vertical lens slide bar 125. The vertical convex lens 124 is fixed on the vertical lens slide bar 125 through a bracket. The vertical convex lens 124 is rotatably matched with the adjusting lead screw 126 through a bracket. A vertical concave lens 123 is also provided between the vertical convex lens 124 and the support base 114. The vertical concave lens 123 is slidably arranged on the vertical lens slide bar 125 through a bracket. The vertical concave lens 123 is in threaded transmission cooperation with the adjusting lead screw 126 through a bracket for adjusting the distance between the vertical convex lens 124 and the vertical concave lens 123. A through hole is provided at the position of the support base 114 aligned with the vertical concave lens 123. The vertical convex lens 124 and the vertical concave lens 123 are located at the edge position below the bottom rotating plate 120, so that the support lens 130 can be aligned with the axes of the vertical convex lens 124 and the vertical concave lens 123.A platform plate 104 is also fixedly installed on the support base 114. The upper surface of the platform plate 104 is flush with the upper surface of the placement flat plate 131. Side convex lenses 109 and side condenser convex lenses 112 are symmetrically arranged on the platform plate 104. The side convex lenses 109 and side condenser convex lenses 112 are located at the edge positions of the placement flat plate 131. On the side of the side convex lens 109 away from the side condenser convex lens 112, a side concave lens 108 and a side light-emitting diode 107 are sequentially arranged. The side light-emitting diode 107 and the side concave lens 108 are fixed on the platform plate 104. On the side of the side condenser convex lens 112 away from the side convex lens 109, a side image sensor 113 is arranged. The side image sensor 113 is fixed on the platform plate 104. The outside of the side light-emitting diode 107, the side concave lens 108, the side convex lens 109, the side condenser convex lens 112 and the side image sensor 113 is sleeved with a bottom light-shielding cover 106. A top light-shielding cover 105 is fixedly communicated with the bottom light-shielding cover 106. At the top end inside the top light-shielding cover 105, a vertical image sensor 111 is fixed. Below the vertical image sensor 111, a vertical condenser convex lens 110 is arranged. The vertical condenser convex lens 110 is fixed on the inner wall of the top light-shielding cover 105. The vertical condenser convex lens 110 is coaxially arranged with the vertical convex lens 124. The support base 114 and the platform plate 104 are both fixedly installed overhead on the upper part of the base 101. Among them, the rotation motor 116 is also fixedly matched with the base 101. A vertical light-emitting diode 115 is fixedly installed directly below the vertical concave lens 123 and the vertical convex lens 124 on the base 101. A protective housing 102 is fixedly installed on the base 101. A window plate 103 is arranged on the side of the protective housing 102. The protective housing 102 sleeves the top light-shielding cover 105, the bottom light-shielding cover 106 and the platform plate 104 inside the protective housing 102.

[0022] The working principle of a casting forming size inspection system disclosed by the present invention is as follows: Open the window plate 103, and then place the casting on one of the support lenses 130. At this time, start the rotation motor 116 and the control motor 117. The output shaft of the rotation motor 116 drives the central gear 132 to rotate, and the output shaft of the control motor 117 only needs to provide a torque to restrict the rotation of the limiting gear ring 128 without driving the gear ring 128 to rotate (the output shaft of the control motor 117 is in transmission cooperation with the gear ring support frame 127 through the transmission belt 121, and the gear ring support frame 127 is fixedly matched with the gear ring 128). Therefore, when the central gear 132 rotates, it will drive the two support lens gear rings 129 to rotate on their own axes, and also revolve inside the gear ring 128. At this time, the two support lens gear rings 129 will drive the bottom rotating plate 120, the placement plane plate 131, the support lenses 130 on the support lens gear rings 129, and the casting placed on the support lenses 130 to rotate, and rotate the casting to a position directly above the vertical concave lens 123 and the vertical convex lens 124. Start the vertical light-emitting diode 115. The light emitted by the vertical light-emitting diode 115 passes through the vertical concave lens 123 and the vertical convex lens 124 (for collimation. Among them, the output shaft of the adjustment motor 122 drives the adjustment screw rod 126 to rotate, and the adjustment screw rod 126 drives the vertical concave lens 123 to slide along the vertical lens slide rod 125 to adjust the distance between the vertical convex lens 124 and the vertical concave lens 123 for adjusting the angle of the light emitted from the vertical convex lens 124. The same method can also be used at the side concave lens 108 and the side convex lens 109. This is only applicable to the initial equipment debugging stage and is not used during normal operation), and emits parallel light beams, and then passes through the support lens 130 and irradiates onto the vertical condenser convex lens 110. The vertical condenser convex lens 110 focuses the light on the vertical image sensor 111. The vertical condenser convex lens 110 is used to reduce the area of the light emitted by the support lens 130, facilitating the reception of the vertical image sensor 111. During this process, the light emitted by the support lens 130 will be blocked by the casting, and the blocked part is the shadow. Therefore, the shadow part cannot be received by the vertical image sensor 111. As a result, the corresponding pixel points of the vertical image sensor 111 cannot receive light signals. Since the distance between the pixel points of the vertical image sensor 111 is known, the contour shape of the casting in the vertical height can be detected through the number and shape of the pixel points that do not receive light (it needs to be calculated proportionally because the vertical condenser convex lens 110 focuses and reduces the light). The working principles of the side light-emitting diode 107, the side concave lens 108, the side convex lens 109, the side condenser convex lens 112, and the side image sensor 113 are the same, and are used to measure the side contour shape size of the casting. The casting can also rotate to measure the side contour sizes at different angles.Specifically, cut off the power supply of the control motor 117 (or control the output shaft of the control motor 117 to rotate in the same direction as the applied force so that the gear ring 128 can rotate freely), start the rotating motor 116, the output shaft of the rotating motor 116 drives the central gear 132 to rotate, the central gear 132 drives the two support lens gear rings 129 to rotate, and the rotation of the support lens gear rings 129 drives the gear ring 128 to rotate. At this time, the support lens gear rings 129 will only rotate on their own axes and not revolve. At this time, the castings on the support lens gear rings 129 and the support lenses 130 will rotate on their own axes, changing the angle between the side of the casting and the light emitted by the side light-emitting diodes 107 to achieve profile size measurement at different angles. Finally, through the cooperation of the rotating motor 116 and the control motor 117, control the castings that have completed the inspection to rotate to the window plate 103 (during this process, the next casting to be inspected for size can be placed on another support lens 130), which is convenient for removal, and then the inspection of the next casting can be carried out.

Claims

1. A casting forming size inspection system, characterized in that: It includes a supporting annular seat (118), on which a bottom rotating plate (120) is rotatably mounted. A placing flat plate (131) is fixedly mounted on the bottom rotating plate (120). Two symmetrically arranged supporting lens gear rings (129) are rotatably mounted between the opposite surfaces of the bottom rotating plate (120) and the placing flat plate (131). Through holes are provided at positions corresponding to the two supporting lens gear rings (129) on the bottom rotating plate (120) and the placing flat plate (131). Supporting lenses (130) are fixedly mounted on the two supporting lens gear rings (129). A groove is provided on the supporting annular seat (118), and a permanent magnet friction plate (119) which is magnetically frictionally engaged with the bottom rotating plate (120) is slidably arranged in the groove. The two supporting lens gear rings (129) are meshed and driven by a central gear (132). The central gear (132) is concentrically arranged with the bottom rotating plate (120) and the placing flat plate (131), and the central gear (132) is rotatably matched with the placing flat plate (131) and the bottom rotating plate (120). A gear ring (128) is also rotatably mounted at the edge position between the opposite surfaces of the bottom rotating plate (120) and the placing flat plate (131). The gear ring (128) is meshed and driven with the two supporting lens gear rings (129).

2. The casting part forming size inspection system according to claim 1, characterized in that: The supporting annular seat (118) is fixedly mounted on a supporting seat (114). A control motor (117) is fixedly mounted on the supporting seat (114). A gear ring support frame (127) is also rotatably mounted on the supporting annular seat (118). The gear ring support frame (127) is fixedly matched with the gear ring (128). The gear ring support frame (127) and the output shaft of the control motor (117) are in transmission cooperation through a transmission belt (121).

3. The forming size inspection system for a casting according to claim 2, characterized in that: A rotary motor (116) and an adjustment motor (122) are also fixedly installed on the support base (114). The output shaft of the rotary motor (116) is fixedly engaged with the central gear (132). An adjustment lead screw (126) is fixedly installed on the output shaft of the adjustment motor (122). A vertical lens slide rod (125) is arranged in parallel on the side of the adjustment lead screw (126). The vertical lens slide rod (125) is fixedly installed on the support base (114). A vertical convex lens (124) is arranged at the top of the adjustment lead screw (126) and the vertical lens slide rod (125). The vertical convex lens (124) is fixed on the vertical lens slide rod (125) through a bracket. The vertical convex lens (124) is rotationally engaged with the adjustment lead screw (126) through a bracket. A vertical concave lens (123) is also arranged between the vertical convex lens (124) and the support base (114). The vertical concave lens (123) is slidably arranged on the vertical lens slide rod (125) through a bracket. The vertical concave lens (123) is in threaded driving engagement with the adjustment lead screw (126) through a bracket for adjusting the distance between the vertical convex lens (124) and the vertical concave lens (123). A through hole is formed at the position of the support base (114) aligned with the vertical concave lens (123). The vertical convex lens (124) and the vertical concave lens (123) are located at the edge position below the bottom rotary plate (120), so that the support lens (130) can be aligned with the axes of the vertical convex lens (124) and the vertical concave lens (123).

4. The forming size inspection system for a casting according to claim 3, wherein: A platform plate (104) is also fixedly installed on the support base (114). The upper surface of the platform plate (104) is flush with the upper surface of the placement flat plate (131). Side convex lenses (109) and side condenser convex lenses (112) are symmetrically arranged on the platform plate (104). The side convex lenses (109) and the side condenser convex lenses (112) are located at the edge position of the placement flat plate (131). A side concave lens (108) and a side light emitting diode (107) are sequentially arranged on the side of the side convex lens (109) away from the side condenser convex lens (112). The side light emitting diode (107) and the side concave lens (108) are fixed on the platform plate (104). A side image sensor (113) is arranged on the side of the side condenser convex lens (112) away from the side convex lens (109). The side image sensor (113) is fixed on the platform plate (104).

5. The forming size inspection system for a casting according to claim 4, wherein: The outer sides of the side-emitting diode (107), side concave lens (108), side convex lens (109), side condenser convex lens (112) and side image sensor (113) are sleeved with a bottom light-shielding cover (106). A top light-shielding cover (105) is fixedly connected to the bottom light-shielding cover (106). At the top end inside the top light-shielding cover (105), a vertical image sensor (111) is fixed. Below the vertical image sensor (111), a vertical condenser convex lens (110) is provided. The vertical condenser convex lens (110) is fixed to the inner wall of the top light-shielding cover (105). The vertical condenser convex lens (110) and the vertical convex lens (124) are coaxially arranged.

6. The forming size inspection system for a casting according to claim 5, characterized in that: The support base (114) and the platform plate (104) are both fixedly installed overhead on the upper part of the base (101). Among them, the rotation motor (116) is also fixedly matched with the base (101). A vertical light-emitting diode (115) is fixedly installed directly below the vertical concave lens (123) and the vertical convex lens (124) on the base (101).

7. A casting forming size inspection system according to claim 6, characterized in that: A protective housing (102) is fixedly installed on the base (101). A window plate (103) is provided on the side of the protective housing (102). The protective housing (102) sleeves the top light-shielding cover (105), the bottom light-shielding cover (106) and the platform plate (104) inside the protective housing (102).

Images