Appearance detection device for automobile die-casting die production

Abstract

The invention relates to the technical field of die detection, and discloses an appearance detection device for automobile die-casting die production, which comprises a transmission crawler belt and a detection box mounted on the upper side of the transmission crawler belt, and a detection camera for detecting a die is mounted in the detection box. The detection box is internally provided with a stretching rod used for stretching into the mold, the detection camera is movably arranged at the end part of the stretching rod, the detection box is internally provided with a driving cylinder used for controlling the stretching rod to stretch out and draw back, and the detection box is internally provided with a rotating mechanism used for controlling the detection camera to rotate. And a driving motor for driving the rotating mechanism to operate is mounted in the detection box. And the detection camera is mounted at the end part of the extension rod, so that the detection camera can scan the interior of the mold in all directions and effectively cover each region in the mold as much as possible, and the comprehensiveness and accuracy of detection are further improved.

Description

Technical Field

[0001] The present invention relates to the technical field of mold detection, and specifically to an appearance detection device for the production of automotive die-casting molds. Background Art

[0002] With the rapid development of the automotive industry, the manufacturing precision and quality requirements of automotive parts are getting higher and higher. Especially in the production process of die-casting molds, the surface quality and dimensional accuracy of the molds directly affect the quality and performance of the final products. Traditional mold appearance detection methods usually rely on manual inspection, which has problems such as low efficiency, strong subjectivity, and large errors, and it is difficult to meet the requirements of modern industry for high precision and high efficiency.

[0003] To solve these problems, in recent years, automated detection technologies have been widely applied. Among them, the circumferential mold detection device, as an advanced appearance detection equipment, has gradually been applied in the production of automotive die-casting molds. Through multi-angle and all-round detection methods, this device can capture surface defects of the mold in real time and accurately, such as cracks, pores, dents, etc., avoiding the subjectivity and limitations of manual detection.

[0004] Currently, during the process of mold appearance detection, it is detected by a detection camera. However, during the injection molding process, the inside of the mold is usually used. But many mold interiors are deep, and traditional appearance detection devices are difficult to directly and effectively detect the inside of the mold. Especially for deep-cavity molds, due to the limitations of the viewing angle and depth, conventional detection devices cannot fully cover all areas inside the mold, resulting in detection blind spots, which in turn affect the quality control of the mold. Therefore, it does not meet the existing requirements, and for this reason, we propose an appearance detection device for the production of automotive die-casting molds. Summary of the Invention

[0005] The present invention provides an appearance detection device for the production of automotive die-casting molds, which has the beneficial effect of being able to detect the inside of the mold, and solves the problem mentioned in the above background art that during the process of mold appearance detection, it is detected by a detection camera. However, during the injection molding process, the inside of the mold is usually used. But many mold interiors are deep, and traditional appearance detection devices are difficult to directly and effectively detect the inside of the mold. Especially for deep-cavity molds, due to the limitations of the viewing angle and depth, conventional detection devices cannot fully cover all areas inside the mold, resulting in detection blind spots, which in turn affect the quality control of the mold.

[0006] The present invention provides the following technical solution: An appearance detection device for automotive die-casting mold production, including a transmission track, and a detection box installed above the transmission track. A detection camera for detecting the mold is installed inside the detection box. A probing rod for penetrating into the interior of the mold is installed inside the detection box. The detection camera is movably arranged at the end of the probing rod. A driving cylinder for controlling the telescopic movement of the probing rod is installed inside the detection box. A rotating mechanism for controlling the rotation of the detection camera is installed inside the detection box. A driving motor for driving the operation of the rotating mechanism is installed inside the detection box.

[0007] For an alternative solution of the appearance detection device for automotive die-casting mold production according to the present invention, wherein: A plurality of placement seats for placing the mold are installed on the belt body of the transmission track. The plurality of placement seats are installed on the belt body of the transmission track in a linear array. Sealing strips for shading are installed at the entrance and exit of the detection box respectively.

[0008] As an alternative solution of the appearance detection device for automotive die-casting mold production according to the present invention, wherein: A support plate is installed inside the detection box. Four support columns are installed on the support plate. The four support columns are installed on the support plate in a rectangular array. The driving cylinder is installed at the bottom side of the support plate. A push plate is installed at the telescopic end of the driving cylinder. The probing rod is rotatably installed at the bottom side of the push plate. The probing rod slides out of the support plate.

[0009] As an alternative solution of the appearance detection device for automotive die-casting mold production according to the present invention, wherein: The driving motor is installed on the support plate. The rotating mechanism includes a first pulley installed on the rotation of the driving motor, a second pulley installed on the probing rod, and a transmission belt rotatably engaged with the first pulley and the second pulley.

[0010] As an alternative solution of the appearance detection device for automotive die-casting mold production according to the present invention, wherein: Connecting cylinders are symmetrically installed at the bottom side of the support plate. A sliding rod is slidably installed inside the connecting cylinder. The bottom sides of the two sliding rods are fixedly installed with an annular block. A corrugated surface is provided at the bottom side of the annular block. And a track groove is provided at the bottom side of the annular block. The track groove is arranged following the shape of the corrugated surface. A driving plate is installed on the probing rod. The bottom side of the driving plate is in contact with the annular block.

[0011] As an optional scheme of the appearance inspection device for automobile die-casting mold production described in the present invention, wherein: a first connecting plate is installed at the end of the probe rod, a rotating cavity is opened on the first connecting plate, a movable column is rotatably installed inside the rotating cavity, a rotating plate is installed on the movable column, the detection camera is installed at the end of the rotating plate, a one-way torsion spring is installed between the movable column and the inner wall of the rotating cavity, a placement seat is installed on the rotating cavity, a resistance rod is hinged on the placement seat, a sliding ball is hinged on the end of the resistance rod, and the sliding ball slidably cooperates with the track groove.

[0012] As an optional scheme of the appearance inspection device for automobile die-casting mold production described in the present invention, wherein: a first bevel gear is coaxially installed on the protruding rod, a second bevel gear is rotatably installed on the protruding rod, a first connecting sleeve is installed on the first bevel gear, a second connecting sleeve is installed on the second bevel gear, a support frame is installed between the second connecting sleeve and the first connecting sleeve, one end of the support frame is rotatably matched with the first connecting sleeve, and the other end of the support frame is rotatably matched with the second connecting sleeve.

[0013] As an optional solution of the appearance inspection device for automobile die-casting mold production described in the present invention, wherein: a third bevel gear is rotatably mounted on the side of the second connecting sleeve, and both sides of the third bevel gear are respectively meshed with the first bevel gear and the second bevel gear.

[0014] As an optional solution of the appearance inspection device for automobile die-casting mold production described in the present invention, a fill light is installed on the first connecting plate.

[0015] As an optional solution of the appearance inspection device for automobile die-casting mold production described in the present invention, the second connecting sleeve is equipped with the second connecting plate, and the specifications of the second connecting plate are consistent with those of the first connecting plate.

[0016] The present invention has the following beneficial effects:

[0017] 1. The appearance inspection device for automobile die-casting mold production, through the cooperation of the probe rod, the driving cylinder, the driving motor and the rotating mechanism, when the mold reaches the specified position, the driving cylinder starts to run, during the operation, the driving cylinder drives the push plate to move downward, the push plate rotates and connects to the probe rod, so that the probe rod descends; after the probe rod reaches the inside of the mold, the driving motor is started, and at the same time, the driving motor transmits the rotational power to the probe rod through the cooperation of the first pulley, the second pulley and the transmission belt, so that the probe rod rotates highly, and because the detection camera is installed at the end of the probe rod, the detection camera can scan the inside of the mold in all directions, covering each area inside the mold as effectively as possible, and further improving the comprehensiveness and accuracy of the detection.

[0018] 2. The appearance inspection device for automobile die-casting mold production is equipped with an annular block, a first connecting plate, a track groove, a rotating rod and a sliding ball. When the inspection camera reaches the inside of the mold, since a resistance rod is installed on the upper side of the rotating plate, the sliding ball on the upper side of the resistance rod slides with the track groove during the rotation of the probe rod. Since the track groove is provided on the corrugated surface and the corrugated surface has an up and down undulating structure, the sliding ball is restricted to drive the resistance rod to move up and down; when the sliding ball slides to the lowest position of the track groove, the resistance rod moves downward to push the rotating plate to tilt downward; when the sliding ball slides to the highest position of the track groove, the resistance rod moves upward and the rotating plate is reset, thereby realizing the up and down swinging of the rotating plate. Since the inspection camera is installed at the end of the rotating plate, the inspection camera will swing up and down with the rotating plate during the rotation process, thereby realizing multi-angle and multi-height inspection. Through the up and down swinging of the rotating plate, the inspection camera can cover a wider area in the vertical direction, thereby further improving the inspection effect.

[0019] 3. The appearance inspection device for automobile die-casting mold production, through the cooperation of the first bevel gear, the second bevel gear, the third bevel gear and the second connecting plate, during the rotation of the probe rod, due to the principle of meshing of the bevel gears, the third bevel gear rotates in opposite directions to the probe rod, and the third bevel gear rotates in opposite directions to the probe rod, thereby achieving the effect of the two inspection cameras rotating in opposite directions. As the probe rod rotates continuously, the two inspection cameras can cover different areas inside the mold through staggered swings. For example, one camera detects the top area and the other camera detects the bottom area, ensuring that the detection range is maximized. Moreover, when one camera detects a suspicious area, the other camera can confirm from the opposite direction, reducing the possibility of misjudgment and further improving the detection effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the detection box and equipment of the present invention.

[0021] Figure 2 It is a schematic diagram of the cutaway structure of the detection box of the present invention.

[0022] Figure 3 It is a schematic diagram of the structure of the probe rod and the support plate of the present invention.

[0023] Figure 4 It is a schematic diagram of the matching structure of the first connecting plate and the second connecting plate of the present invention.

[0024] Figure 5 It is a schematic diagram of the matching structure of the first bevel gear, the second bevel gear and the third bevel gear of the present invention.

[0025] Figure 6 Schematic diagram of the cooperation structure between the unidirectional torsion spring and the movable column of the present invention.

[0026] Figure 7 Schematic diagram of the track groove and the annular block of the present invention.

[0027] In the figure: 110, transmission track; 111, detection box; 112, detection camera; 113, protruding rod; 114, driving cylinder; 115, driving motor; 120, rotating mechanism; 121, first pulley; 122, second pulley; 123, transmission belt; 130, placement seat; 131, support plate; 132, support column; 133, push plate; 140, connecting cylinder; 141, sliding rod; 142, annular block; 143, corrugated surface; 144, track groove; 150, first connecting plate; 151, movable column; 152, unidirectional torsion spring; 153, abutting rod; 154, sliding ball; 160, first bevel gear; 161, second bevel gear; 162, first connecting sleeve; 163, second connecting sleeve; 164, support frame; 165, third bevel gear; 170, fill light; 171, second connecting plate; 180, sealing strip; 190, rotating cavity; 210, driving plate; 220, rotating plate. Specific embodiments

[0028] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0029] Embodiment 1. The purpose of this embodiment is to promote the solution of the problem that during the inspection of the appearance of the mold, it is detected by a detection camera. However, during the injection molding process, the mold is usually used internally. Many molds have deep interiors, but traditional appearance inspection devices are difficult to directly and effectively detect the interior of the mold. Especially for deep cavity molds, due to the limitations of the viewing angle and depth of conventional inspection devices, they cannot completely cover all areas inside the mold, resulting in detection blind spots and thus affecting the quality control of the mold. Please refer to Figures 1-7, An appearance detection device for automobile die-casting mold production, including a transmission track 110 and a detection box 111 installed on the upper side of the transmission track 110. Inside the detection box 111, a detection camera 112 for detecting the mold is installed. Inside the detection box 111, a probing rod 113 for penetrating into the mold is installed. The detection camera 112 is movably arranged at the end of the probing rod 113. Inside the detection box 111, a driving cylinder 114 for controlling the telescopic movement of the probing rod 113 is installed. Inside the detection box 111, a rotating mechanism 120 for controlling the rotation of the detection camera 112 is installed. Inside the detection box 111, a driving motor 115 for driving the operation of the rotating mechanism 120 is installed.

[0030] Specifically, a number of placement seats 130 for placing the mold are installed on the belt body of the transmission track 110. The number of placement seats 130 is installed on the belt body of the transmission track 110 in a linear array. Through the placement seats 130, the operator can be guided when placing the mold, so that the mold is placed in a suitable position, facilitating subsequent detection. Sealing strips 180 for shading are installed at the entrance and exit of the detection box 111 respectively. Through the setting of the sealing strips 180, as much as possible to reduce the external light from entering the detection box 111 and affecting the detection.

[0031] See Figure 1 And Figure 2 , Specifically, a support plate 131 is installed inside the detection box 111. Four support columns 132 are installed on the support plate 131. The four support columns 132 are installed on the support plate 131 in a rectangular array. Through the cooperation of the support plate 131 and the four support columns 132, it can play a supporting role for equipment such as the detection camera 112; the driving cylinder 114 is installed on the bottom side of the support plate 131. A pushing plate 133 is installed at the telescopic end of the driving cylinder 114. The probing rod 113 is rotatably installed on the bottom side of the pushing plate 133. The probing rod 113 slides out of the support plate 131. The driving motor 115 is installed on the support plate 131. The rotating mechanism 120 includes a first pulley 121 installed on the rotation of the driving motor 115, a second pulley 122 installed on the probing rod 113, and a transmission belt 123 rotatably engaged on the first pulley 121 and the second pulley 122.

[0032] See Figure 1 , Figure 2 And Figure 3, During specific implementation, when the mold reaches below the support plate 131 following the belt body of the conveyor belt 110, the driving cylinder 114 operates at this time, driving the pushing plate 133 to move downward. During the downward movement of the pushing plate 133, the protruding rod 113 is driven to descend. Since the detection camera 112 is installed at the end of the protruding rod 113, the detection camera 112 follows and descends. After the descent is completed, the driving motor 115 is started, and during the operation of the driving motor 115, the rotational power is transmitted to the protruding rod 113 through the cooperation of the first pulley 121, the second pulley 122, and the transmission belt 123, realizing the rotation of the protruding rod 113 driving the camera. Therefore, after the protruding rod 113 penetrates into the mold, the detection camera 112 can rotate 360 degrees, covering as many angles and depths inside the mold as possible, reducing undetected blind spots. At the same time, by rotating the detection camera 112, the error caused by a single viewing angle can be reduced, improving the reliability of detection.

[0033] In this embodiment: Through the cooperation of the protruding rod 113, the driving cylinder 114, the driving motor 115, and the rotating mechanism 120, when the mold reaches the designated position, the driving cylinder 114 starts to operate. During the operation, the driving cylinder 114 drives the pushing plate 133 to move downward. The pushing plate 133 is rotatably connected to the protruding rod 113, causing the protruding rod 113 to descend accordingly. After the protruding rod 113 reaches inside the mold, the driving motor 115 is started. At the same time, the driving motor 115 transmits the rotational power to the protruding rod 113 through the cooperation of the first pulley 121, the second pulley 122, and the transmission belt 123, causing the protruding rod 113 to rotate highly. Since the detection camera 112 is installed at the end of the protruding rod 113, the detection camera 112 can scan the inside of the mold in all directions, covering as many areas inside the mold as possible, further improving the comprehensiveness and accuracy of detection.

[0034] Embodiment 2. The purpose of this embodiment is to facilitate the solution of the problem that when the internal space of the mold is spherical, a single rotating detection camera 112 cannot detect the top of the mold, affecting the detection. This embodiment is an improvement based on Embodiment 1. Specifically, please refer to Figure 1 - Figure 7 , connecting cylinders 140 are symmetrically installed on the bottom side of the support plate 131. A sliding rod 141 is slidably installed inside the connecting cylinder 140. The bottom sides of the two sliding rods 141 are fixedly installed with an annular block 142. A corrugated surface 143 is formed on the bottom side of the annular block 142, and a track groove 144 is formed on the bottom side of the annular block 142. The track groove 144 is arranged following the shape of the corrugated surface 143. A driving plate 210 is installed on the protruding rod 113, and the bottom side of the driving plate 210 contacts the annular block 142.

[0035] See Figure 2 、 Figure 3 and Figure 4, during specific implementation, during the process of the detection camera 112 descending, by using the contact of the driving plate 210 with the annular block 142, the annular block 142 is made to descend together with the protruding rod 113; it should be noted that a spring is installed between the sliding rod 141 and the connecting cylinder 140, and the spring functions to reset the sliding rod 141 after it extends.

[0036] A first connecting plate 150 is installed at the end of the protruding rod 113. A rotating cavity 190 is provided on the first connecting plate 150. An activity column 151 is rotatably installed inside the rotating cavity 190. A rotating plate 220 is installed on the activity column 151. The detection camera 112 is installed at the end of the rotating plate 220. A one-way torsion spring 152 is installed between the activity column 151 and the inner wall of the rotating cavity 190. It should be noted that due to the force of the one-way torsion spring 152, the initial inclination direction of the rotating plate 220 is upward. A placement seat 130 is installed on the rotating cavity 190. A resisting rod 153 is hinged on the placement seat 130. A sliding ball 154 is hinged at the end of the resisting rod 153. The sliding ball 154 is in sliding fit with the track groove 144.

[0037] See Figure 2 , Figure 3 , Figure 4 and Figure 6 , during specific implementation, after the detection camera 112 reaches inside the mold, through the setting of the first connecting plate 150, and by installing the resisting rod 153 on the upper side of the rotating plate 220, and at the same time using the cooperation of the sliding ball 154 on the resisting rod 153 with the track groove 144, during the process of the protruding rod 113 driving the first connecting plate 150 to rotate, the sliding ball 154 on the resisting rod 153 slides inside the track groove 144. Since the track groove 144 is opened on the corrugated surface 143, when the resisting rod 153 rotates, it is restricted by the track groove 144 to move up and down. Therefore, when the sliding ball 154 slides to the lowest position of the track groove 144, the resisting rod 153 moves downward, and during the downward movement, it pushes the rotating plate 220, making the rotating plate 220 tilt downward. When the resisting rod 153 moves upward, the rotating plate 220 resets. Thus, the up and down swinging of the rotating plate 220 is realized. Since the detection camera 112 is installed at the end of the rotating plate 220, the detection camera 112 swings up and down during the rotation process. By swinging up and down, the detection camera 112 can cover a wider area in the vertical direction, further improving the detection effect.

[0038] In this embodiment: through the cooperation of the annular block 142, the first connecting plate 150, the track groove 144, the rotating rod and the sliding ball 154, when the detection camera 112 reaches the inside of the mold, since the resistance rod 153 is installed on the upper side of the rotating plate 220, during the rotation of the probe rod 113, the sliding ball 154 on the upper side of the resistance rod 153 slides with the track groove 144. Since the track groove 144 is provided on the corrugated surface 143, the corrugated surface 143 has an up and down structure, the sliding ball 154 is restricted to drive the resistance rod 153 to move up and down; when the sliding ball 154 slides to the track groove 144 When the sliding ball 154 slides to the highest position of the track groove 144, the contact rod 153 moves upward and the rotating plate 220 is reset, thereby realizing the up and down swinging of the rotating plate 220. Since the detection camera is installed at the end of the rotating plate 220, the detection camera 112 will swing up and down with the rotating plate 220 during the rotation process, thereby realizing multi-angle and multi-height detection. Through the up and down swinging of the rotating plate 220, the detection camera 112 can cover a wider area in the vertical direction, thereby further improving the detection effect.

[0039] Embodiment 3: This embodiment is intended to solve the problem that a single detection camera 112 may not detect the internal part of the mold during the up and down swinging process, thereby affecting the detection. This embodiment is an improvement made on the basis of embodiment 2. For details, please refer to Figures 1-7 A first bevel gear 160 is coaxially installed on the protruding rod 113, a second bevel gear 161 is rotatably installed on the protruding rod 113, a first connecting sleeve 162 is installed on the first bevel gear 160, a second connecting sleeve 163 is installed on the second bevel gear 161, a support frame 164 is installed between the second connecting sleeve 163 and the first connecting sleeve 162, one end of the support frame 164 is rotatably matched with the first connecting sleeve 162, and the other end of the support frame 164 is rotatably matched with the second connecting sleeve 163.

[0040] See Figure 4 , Figure 5 and Figure 7 The third bevel gear 165 is rotatably mounted on the side of the second connecting sleeve 163, and the two sides of the third bevel gear 165 are respectively meshed with the first bevel gear 160 and the second bevel gear 161; the fill light 170 is mounted on the first connecting plate 150. The second connecting sleeve 163 is mounted with a second connecting plate 171, and the second connecting plate 171 has the same specifications as the first connecting plate 150.

[0041] See Figure 4 , Figure 5 and Figure 7During specific implementation, during the rotation of the extending rod 113, the first bevel gear 160 is driven to rotate. Therefore, during the rotation of the first bevel gear 160, the second bevel gear 161 is driven to rotate. During the rotation of the second bevel gear 161, the third bevel gear 165 is driven to rotate. Due to the principle of bevel gear rotation, the rotation direction of the third bevel gear 165 is opposite to that of the extending rod 113. At the same time, the second connecting plate 171 is installed on the second connecting sleeve 163 of the third bevel gear 165, so that the rotation direction of the second connecting plate 171 is also opposite to that of the first connecting plate 150. Therefore, when the two detection cameras 112 rotate, the effect of staggered swinging is achieved.

[0042] In this embodiment: Through the cooperation of the first bevel gear 160, the second bevel gear 161, the third bevel gear 165 and the second connecting plate, during the rotation of the extending rod 113, due to the principle of bevel gear meshing, at the same time, the rotation direction of the third bevel gear 165 is opposite to that of the extending rod 113. The rotation direction of the third bevel gear 165 is opposite to that of the extending rod 113, achieving the effect that the rotation directions of the two detection cameras 112 are opposite. As the extending rod 113 rotates continuously, the two detection cameras 112 can cover different areas inside the mold through staggered swinging. For example, one camera detects the top area and the other camera detects the bottom area, ensuring the detection range is maximized. Moreover, when one camera detects a suspicious area, the other camera can confirm from the opposite direction, reducing the possibility of misjudgment and further improving the detection effect.

[0043] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0044] The above are only the preferred embodiments of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. An appearance inspection device for automobile die-casting mold production, comprising a transmission crawler (110), and an inspection box (111) installed on the upper side of the transmission crawler (110), wherein an inspection camera (112) for inspecting the mold is installed inside the inspection box (111), characterized in that: A protruding rod (113) for penetrating into the mold is installed inside the detection box (111); the detection camera (112) is movably arranged at the end of the protruding rod (113); a driving cylinder (114) for controlling the extension and retraction of the protruding rod (113) is installed inside the detection box (111); a rotating mechanism (120) for controlling the rotation of the detection camera (112) is installed inside the detection box (111); and a driving motor (115) for driving the rotating mechanism (120) to operate is installed inside the detection box (111).

2. The appearance inspection device for automobile die-casting mold production according to claim 1 is characterized in that: A plurality of placement seats (130) for placing molds are installed on the conveying crawler (110) body, and the plurality of placement seats (130) are installed on the conveying crawler (110) body in a linear array. Sealing strips (180) for shading light are respectively installed at the entrance and exit of the detection box (111).

3. The appearance inspection device for automobile die-casting mold production according to claim 1 is characterized in that: A support plate (131) is installed inside the detection box (111), and four support columns (132) are installed on the support plate (131). The four support columns (132) are installed on the support plate (131) in a rectangular array. The driving cylinder (114) is installed on the bottom side of the support plate (131), and a push plate (133) is installed at the telescopic end of the driving cylinder (114). The protruding rod (113) is rotatably installed on the bottom side of the push plate (133), and the protruding rod (113) slides out of the support plate (131).

4. The appearance inspection device for automobile die-casting mold production according to claim 3 is characterized in that: The driving motor (115) is mounted on the supporting plate (131), and the rotating mechanism (120) comprises a first pulley (121) mounted for rotation on the driving motor (115), a second pulley (122) mounted on the protruding rod (113), and a transmission belt (123) rotatably engaged with the first pulley (121) and the second pulley (122).

5. The appearance inspection device for automobile die-casting mold production according to claim 4 is characterized in that: A connecting tube (140) is symmetrically mounted on the bottom side of the support plate (131), a sliding rod (141) is slidably mounted inside the connecting tube (140), an annular block (142) is fixedly mounted on the bottom side of the two sliding rods (141), a corrugated surface (143) is provided on the bottom side of the annular block (142), and a track groove (144) is provided on the bottom side of the annular block (142), and the track groove (144) is arranged to follow the shape of the corrugated surface (143), and a driving plate (210) is mounted on the protruding rod (113), and the driving plate (210) is in contact with the annular block (142) at the bottom side.

6. The appearance inspection device for automobile die-casting mold production according to claim 4, characterized in that: A first connecting plate (150) is installed at the end of the protruding rod (113), a rotating cavity (190) is provided on the first connecting plate (150), a movable column (151) is rotatably installed inside the rotating cavity (190), a rotating plate (220) is installed on the movable column (151), the detection camera (112) is installed at the end of the rotating plate (220), a one-way torsion spring (152) is installed between the movable column (151) and the inner wall of the rotating cavity (190), a placement seat (130) is installed on the rotating cavity (190), a resistance rod (153) is hinged on the placement seat (130), a sliding ball (154) is hinged on the end of the resistance rod (153), and the sliding ball (154) is slidably matched with the track groove (144).

7. The appearance inspection device for automobile die-casting mold production according to claim 3 is characterized in that: A first bevel gear (160) is coaxially mounted on the protruding rod (113); a second bevel gear (161) is rotatably mounted on the protruding rod (113); a first connecting sleeve (162) is mounted on the first bevel gear (160); a second connecting sleeve (163) is mounted on the second bevel gear (161); a support frame (164) is mounted between the second connecting sleeve (163) and the first connecting sleeve (162); one end of the support frame (164) is rotatably engaged with the first connecting sleeve (162); and the other end of the support frame (164) is rotatably engaged with the second connecting sleeve (163).

8. The appearance inspection device for automobile die-casting mold production according to claim 7, characterized in that: A third bevel gear (165) is rotatably mounted on the side of the second connecting sleeve (163), and two sides of the third bevel gear (165) are respectively meshed with the first bevel gear (160) and the second bevel gear (161).

9. The appearance inspection device for automobile die-casting mold production according to claim 6, characterized in that: A fill light (170) is installed on the first connecting plate (150).

10. The appearance inspection device for automobile die-casting mold production according to claim 9, characterized in that: The second connecting plate (171) is installed on the second connecting sleeve (163), and the second connecting plate (171) has the same specifications as the first connecting plate (150).

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