Wax mould surface defect detection device

Abstract

The utility model discloses a wax mould surface defect detection device and relates to the technical field of wax mould detection devices. The device comprises a detection table, a supporting column is fixedly connected to the middle of the bottom end of the detection table, a rotating ring is clamped to the side face of the detection table in a sliding mode, and an arc-shaped frame is rotationally connected between the two sides of the rotating ring. A stepping motor drives a gear to rotate, the gear is connected with a rack in a meshed mode, meanwhile, the gear is driven to roll along the side face of the rack, and then the gear is driven to slide around the outer side of a detection table, so that detection of the side face of a wax mold is achieved; the first bevel gear is connected with a second bevel gear in a meshed mode, and meanwhile the first bevel gear and a rotating rod are driven to rotate; and a crank and a roller are driven to rotate around a central shaft of a rotating rod, so that a connecting plate is driven to swing in a reciprocating manner, an arc-shaped frame and a visual detector are driven to swing in a reciprocating manner, the visual detector is used for detecting the top of the wax mold, all-directional detection of the wax mold is realized, and the detection efficiency is further improved.

Description

Technical Field

[0001] This utility model relates to the technical field of wax model inspection devices, specifically a wax model surface defect inspection device. Background Technology

[0002] Wax models are crucial molds in precision casting (such as lost-wax casting). They are typically made of materials like beeswax and synthetic wax, and their surface finish and dimensional accuracy directly affect the quality of the final metal casting. During production, the wax model is coated with multiple layers of refractory material to form a shell. After heating, the wax melts and flows out, forming a cavity for pouring metal. Wax models may develop defects such as cracks, bubbles, and deformation due to shrinkage, demolding, or external forces, requiring rigorous inspection. Traditional wax model defect inspection mainly relies on manual visual inspection or handheld magnifying glasses, which suffers from low efficiency, high missed detection rate, and strong subjectivity.

[0003] However, wax models usually have complex three-dimensional geometric features. Fixed vision inspection instruments, due to their single perspective, cannot fully capture defects in all parts of the curved surface. Frequent manual adjustments to the wax model's posture or camera position are required, leading to interruptions in the inspection process and low efficiency. To address these issues, the inventors have proposed a wax model surface defect detection device. Utility Model Content

[0004] In order to solve the problem of comprehensive detection of surface defects in wax molds, the purpose of this utility model is to provide a device for detecting surface defects in wax molds.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a wax model surface defect detection device, including a detection platform, a support column fixedly connected to the bottom center of the detection platform, a rotating ring slidably engaged with the side of the detection platform, an arc-shaped frame rotatably connected between the two sides of the rotating ring, a visual inspection instrument fixedly installed at the top center of the arc-shaped frame, a horizontal rotating component provided on one side of the rotating ring, a vertical swing component provided on the side of the rotating ring near the arc-shaped frame, and a clamping mechanism provided at the top of the detection platform for clamping and fixing the wax model.

[0006] Preferably, the horizontal rotation assembly includes a rack, which is fixedly connected to the periphery of the detection platform. A gear is rotatably connected to the inside of the rotating ring near the rack. A stepper motor is fixedly installed on the top of the rotating ring near the gear, and the drive end of the stepper motor is fixedly connected to the rotation shaft of the gear.

[0007] Preferably, the vertical swing assembly includes two symmetrically distributed fixed plates, which are fixedly connected to a rotating ring. One end of each fixed plate is movably mounted around the outside of the rotating shaft of the arc-shaped frame. Both ends of the rotating shaft of the arc-shaped frame are fixedly connected to connecting plates. The connecting plates have movable slots. A rotating rod is rotatably connected to one side of the bottom of the fixed plate. The end of the rotating rod near the fixed plate extends to one side of the fixed plate and is fixedly connected to a crank. A roller is rotatably connected to one end of the crank away from the fixed plate. The roller is movably engaged in the movable slot. A bevel gear one is fixedly connected to the end of the rotating rod away from the fixed plate. A bevel gear two is fixedly connected to the outside of the support column. The bevel gear one and bevel gear two are meshed. The diameter of bevel gear two is larger than the diameter of bevel gear one. An annular slide rail is fixedly connected to the bottom of the detection platform. A sliding plate is slidably engaged on the annular slide rail. The rotating rod is rotatably connected to the sliding plate.

[0008] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0009] A stepper motor drives a gear to rotate, which meshes with a rack and pinion. The gear rolls along the side of the rack and slides around the outside of the inspection platform, allowing for inspection of the side of the wax model. Bevel gear one meshes with bevel gear two, causing bevel gear one and a rotating rod to rotate. This, in turn, causes a crank and roller to rotate around the central axis of the rotating rod, resulting in the reciprocating oscillation of a connecting plate. This, in turn, causes the arc-shaped frame and the vision inspection instrument to reciprocate, allowing for inspection of the top of the wax model. This comprehensive inspection of the wax model further improves inspection efficiency. Attached Figure Description

[0010] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0012] Figure 2 This is a partial cross-sectional view of the present invention.

[0013] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle.

[0014] Figure 4 This is a partial structural diagram of the present invention.

[0015] Figure 5 This utility model Figure 4 Enlarged view of point B in the middle.

[0016] In the diagram: 1. Inspection table; 2. Rotating ring; 3. Arc frame; 4. Vision inspection instrument; 5. Horizontal rotation assembly; 51. Rack; 52. Gear; 53. Stepper motor; 6. Vertical swing assembly; 61. Fixed plate; 62. Connecting plate; 63. Movable groove; 64. Rotating rod; 65. Crank; 66. Roller; 67. Bevel gear one; 68. Bevel gear two; 7. Circular slide rail; 8. Slide plate; 9. Support column; 10. Clamping mechanism. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Example: Figure 1-5 As shown, this utility model provides a surface defect detection device for wax molds, including a detection platform 1. A support column 9 is fixedly connected to the bottom center of the detection platform 1. A rotating ring 2 is slidably engaged with the side of the detection platform 1. An arc frame 3 is rotatably connected between the two sides of the rotating ring 2. A visual inspection instrument 4 is fixedly installed at the top center of the arc frame 3. A horizontal rotating component 5 is provided on one side of the rotating ring 2. A vertical swing component 6 is provided on the side of the rotating ring 2 near the arc frame 3.

[0019] The horizontal rotation assembly 5 includes a rack 51, which is fixedly connected to the periphery of the detection table 1. A gear 52 is rotatably connected to the inside of the rotating ring 2 near the rack 51. A stepper motor 53 is fixedly installed on the top of the rotating ring 2 near the gear 52. The drive end of the stepper motor 53 is fixedly connected to the rotation shaft of the gear 52.

[0020] By adopting the above technical solution, the stepper motor 53 drives the gear 52 to rotate, and the gear 52 meshes with the rack 51. At the same time, the gear 52 rolls along the side of the rack 51, and the rotating ring 2 slides around the outside of the detection table 1 to realize the detection of the side of the wax model.

[0021] The vertical swing assembly 6 includes two symmetrically distributed fixed plates 61. The fixed plates 61 are fixedly connected to the rotating ring 2. One end of the fixed plate 61 is movably wrapped around the outside of the rotating shaft of the arc frame 3. Both ends of the rotating shaft of the arc frame 3 are fixedly connected to the connecting plates 62. The connecting plates 62 are provided with movable grooves 63. A rotating rod 64 is rotatably connected to one side of the bottom of the fixed plate 61. The end of the rotating rod 64 near the fixed plate 61 extends to one side of the fixed plate 61 and is fixedly connected to the crank 65. A roller 66 is rotatably connected to one end of the crank 65 away from the fixed plate 61. The roller 66 is movably engaged in the movable groove 63. A bevel gear 67 is fixedly connected to the end of the rotating rod 64 away from the fixed plate 61. A bevel gear 68 is fixedly connected to the outside of the support column 9. The bevel gear 67 and the bevel gear 68 are meshed together.

[0022] By adopting the above technical solution, when the rotating ring 2 rotates around the side of the inspection table 1, it drives the bevel gear 67 to revolve around the central axis of the support column 9. The bevel gear 67 meshes with the bevel gear 68, and at the same time drives the bevel gear 67 and the rotating rod 64 to rotate, thereby driving the crank 65 and the roller 66 to rotate around the central axis of the rotating rod 64. The rotating groove 63 limits the rotation of the roller 66, thereby driving the connecting plate 62 to reciprocate, and driving the arc frame 3 and the vision inspection instrument 4 to reciprocate. The vision inspection instrument 4 is used to inspect the top of the wax model, thereby realizing the all-round inspection of the wax model.

[0023] The bottom of the testing table 1 is fixedly connected to an annular slide rail 7, and a slide plate 8 is slidably engaged on the annular slide rail 7. The rotating rod 64 is rotatably connected to the slide plate 8.

[0024] By adopting the above technical solution and setting the annular slide rail 7, the slide plate 8 can slide along the direction of the annular slide rail 7, while the slide plate 8 supports the rotating rod 64, thereby improving the stability of the rotating rod 64 when it moves.

[0025] The top of the testing table 1 is equipped with a clamping mechanism 10, which is used to clamp and fix the wax model.

[0026] By adopting the above technical solution and by setting the clamping mechanism 10, the position of the wax model can be fixed.

[0027] The diameter of bevel gear 268 is larger than the diameter of bevel gear 167.

[0028] By adopting the above technical solution, by setting the diameter of bevel gear 2 68 to be larger than the diameter of bevel gear 1 67, it is easier to control the rotation ratio between bevel gear 1 67 and bevel gear 2 68, so that when the rotating ring 2 rotates once, the arc frame 3 swings vertically back and forth multiple times, thereby realizing defect detection on different positions of the top of the wax model.

[0029] Working principle: When inspecting the surface of a wax model for defects, the wax model is placed on the top of the inspection table 1 and clamped and fixed by the clamping mechanism 10. Then, the stepper motor 53 drives the gear 52 to rotate. The gear 52 meshes with the rack 51 and simultaneously drives the gear 52 to roll along the side of the rack 51, thereby driving the rotating ring 2 to slide around the outside of the inspection table 1 to achieve the inspection of the side of the wax model.

[0030] When the rotating ring 2 rotates around the side of the inspection table 1, it drives the bevel gear 67 to revolve around the central axis of the support column 9. The bevel gear 67 meshes with the bevel gear 68, and at the same time drives the bevel gear 67 and the rotating rod 64 to rotate, thereby driving the crank 65 and the roller 66 to rotate around the central axis of the rotating rod 64. The rotating groove 63 limits the rotation of the roller 66, thereby driving the connecting plate 62 to reciprocate, and driving the arc frame 3 and the vision inspection instrument 4 to reciprocate. The vision inspection instrument 4 is used to inspect the top of the wax model, thereby realizing the all-round inspection of the wax model.

[0031] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A device for detecting surface defects in wax molds, comprising a testing table (1), characterized in that: A support column (9) is fixedly connected to the bottom center of the testing platform (1). A rotating ring (2) is slidably engaged on the side of the testing platform (1). An arc frame (3) is rotatably connected between the two sides of the rotating ring (2). A visual inspection instrument (4) is fixedly installed at the top center of the arc frame (3). A horizontal rotating component (5) is provided on one side of the rotating ring (2). A vertical swing component (6) is provided on the side of the rotating ring (2) near the arc frame (3).

2. The wax mold surface defect detection device as described in claim 1, characterized in that, The horizontal rotating assembly (5) includes a rack (51), which is fixedly connected to the periphery of the detection table (1). A gear (52) is rotatably connected to the inside of the rotating ring (2) near the rack (51). A stepper motor (53) is fixedly installed on the top of the rotating ring (2) near the gear (52). The drive end of the stepper motor (53) is fixedly connected to the rotating shaft of the gear (52).

3. The wax mold surface defect detection device as described in claim 1, characterized in that, The vertical swing assembly (6) includes two symmetrically distributed fixed plates (61). The fixed plates (61) are fixedly connected to the rotating ring (2). One end of the fixed plate (61) is movably wrapped around the outside of the rotating shaft of the arc frame (3). Both ends of the rotating shaft of the arc frame (3) are fixedly connected to connecting plates (62). The connecting plates (62) are provided with movable grooves (63). A rotating rod (64) is rotatably connected to one side of the bottom of the fixed plate (61). The rotating rod (64) is close to the fixed plate (61). One end of the rotating rod (64) extends to one side of the fixed plate (61) and is fixedly connected to a crank (65). One end of the crank (65) away from the fixed plate (61) is rotatably connected to a roller (66). The roller (66) is movably engaged in the movable groove (63). One end of the rotating rod (64) away from the fixed plate (61) is fixedly connected to a bevel gear (67). The outer side of the support column (9) is fixedly connected to a bevel gear (68). The bevel gear (67) and the bevel gear (68) are meshed together.

4. The wax mold surface defect detection device as described in claim 3, characterized in that, The bottom end of the testing platform (1) is fixedly connected to an annular slide rail (7), and a slide plate (8) is slidably engaged on the annular slide rail (7). The rotating rod (64) is rotatably connected to the slide plate (8).

5. The wax mold surface defect detection device as described in claim 1, characterized in that, The top of the testing platform (1) is provided with a clamping mechanism (10), which is used to clamp and fix the wax model.

6. The wax mold surface defect detection device as described in claim 3, characterized in that, The diameter of the second bevel gear (68) is greater than the diameter of the first bevel gear (67).

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