Laser detection device for additive manufacturing

Abstract

The utility model discloses a laser detection device for additive manufacturing, and relates to the technical field of additive manufacturing. The utility model comprises a fixing part which comprises a shell, a cover plate arranged at the top of the shell, and an accommodating cavity arranged at the bottom of the shell, and the shell and the cover plate are connected through a connecting rivet; the detection part comprises a driving assembly arranged in the shell, a moving assembly arranged outside the driving assembly, and a detection assembly arranged in the moving assembly; the driving assembly comprises a motor fixed in the containing cavity. The bearing disc for bearing a finished product is rotated through the motor, the finished product is rotated, the finished product is detected by the detection probe more comprehensively, in addition, through the action of the driving gear and the connecting gear, the connecting gear ring is rotated to drive the convex block to move, and the contact column can drive the detection probe to move up and down. Therefore, the detection of the finished product is more comprehensive.

Description

Technical Field

[0001] The utility model belongs to the technical field of additive manufacturing, and particularly relates to a laser detection device for additive manufacturing. Background Art

[0002] Additive manufacturing, commonly known as 3D printing, is a manufacturing technology that integrates computer-aided design and material processing and molding technology. It is based on digital model files and uses software and numerical control systems to stack special metal materials, non-metallic materials and medical biomaterials layer by layer through extrusion, sintering, melting, photocuring, spraying, etc. to produce physical objects.

[0003] At present, when additive manufacturing is completed, the finished product needs to be inspected. The inspection method is mostly through infrared scanning. The infrared inspection method is a hierarchical scanning like CT scanning. When the finished product has oblique defects, the infrared scanning needs to be adjusted to the scanning plane manually or mechanically. The required inspection time is long and the number of inspections is large. The defects detected are not coherent, resulting in low inspection efficiency. It is also affected by the number of scans and whether the scan is comprehensive, resulting in inaccurate inspection results.

[0004] To this end, we provide a laser detection device for additive manufacturing to solve the above-mentioned problems. Summary of the invention

[0005] The purpose of the utility model is to provide a laser detection device for additive manufacturing, which can realize comprehensive and multiple detection of finished products by moving the detection probe up and down and rotating the finished products, thereby solving the problems of poor effect and low efficiency of existing infrared scanning detection.

[0006] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0007] The utility model is a laser detection device for additive manufacturing, comprising:

[0008] The fixing component comprises a housing, a cover plate arranged on the top of the housing, the housing and the cover plate being connected by connecting rivets, and a receiving cavity arranged on the bottom of the housing;

[0009] A detection component, comprising a driving component disposed inside the housing, a moving component disposed outside the driving component, and a detection component disposed inside the moving component;

[0010] The driving assembly includes a motor fixed inside the accommodating cavity, a driving shaft fixed to the driving end of the motor, a driving gear sleeved on the outer wall of the driving shaft, a bearing disc fixed to the top of the driving shaft, a limiting arc block fixed to the periphery of the bearing disc, and a connecting block arranged outside the bearing disc;

[0011] The moving assembly includes a connecting gear disposed on one side of the driving gear, a connecting gear ring disposed on one side of the connecting gear, a supporting disc fixed to the bottom of the connecting gear ring, a protruding block fixed to the top of the connecting gear ring, a contact column disposed on the top of the connecting gear ring, and a detection probe fixedly connected to the inner side of the contact column;

[0012] The detection component includes a slide groove opened inside the connecting block, a protective cover fixed on the top of the connecting block, a strip hole opened on the inner side of the protective cover, a spring arranged inside the slide groove, and a stop block fixed on the top of the spring.

[0013] The utility model is further configured such that the driving gear is meshed with the connecting gear, the driving gear is fixedly connected to the driving shaft, the limiting arc block is rotatably connected to the connecting block, and the connecting block is fixedly connected to the inner wall of the shell.

[0014] The utility model is further configured such that the connecting gear is meshed with the connecting gear ring, the supporting disc is rotatably connected to the inner wall of the shell, the motor driving end passes through the driving shaft, and the motor driving end is rotatably connected to the driving shaft.

[0015] The utility model is further configured such that the protective cover is slidably connected to the contact column, the retaining block is fixedly connected to the contact column, the end of the spring is fixedly connected to the end of the retaining block, and the other end of the spring is fixedly connected to the inside of the slide groove.

[0016] The utility model is further configured such that the width of the strip-shaped hole arranged on the protective cover is greater than the diameter of the detection probe arranged on the contact column, and the detection probe is arranged inside the strip-shaped hole.

[0017] The utility model is further configured to also include an installation component, including a limiting groove opened inside the supporting disc, a guide wheel arranged inside the limiting groove, a tension spring arranged on the guide wheel, a connecting rod arranged on one side of the guide wheel, an articulated seat arranged on one side of the connecting rod, and an arc plate fixed to one side of the articulated seat.

[0018] The utility model is further configured that the guide wheels cooperate with each other in pairs and are evenly arranged inside the limiting groove, and the guide wheels are slidably connected to the limiting groove.

[0019] The utility model is further configured that the connecting rod is hinged to the guide wheel, and the two ends of the tension spring are respectively fixedly connected to the opposite sides of two adjacent guide wheels.

[0020] The utility model has the following beneficial effects:

[0021] 1. The utility model uses a motor to rotate the bearing disc carrying the finished product, so that the finished product rotates, and the detection probe can detect the finished product more comprehensively. In addition, through the action of the active gear and the connecting gear, the connecting gear ring rotates to drive the raised block to move, so that the contact column can move up and down with the detection probe. While scanning in the circumferential direction, it can also scan in the oblique direction synchronously, so that the detection of the finished product is more comprehensive and complete, and the detection efficiency is improved.

[0022] 2. The utility model pushes the arc plate outward, utilizes the change in the angle of the two connecting rods, and causes the tension spring to deform, and then utilizes the resetting effect of the tension spring to clamp and fix the finished product. At the same time, finished products of different sizes can be used, thereby improving the applicability of the device.

[0023] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 This is a schematic diagram of the overall structure of a laser detection device for additive manufacturing.

[0026] Figure 2 This is a schematic diagram of the overall internal structure of a laser detection device for additive manufacturing.

[0027] Figure 3 The present invention is a schematic diagram of the overall structure of a detection component for a laser detection device for additive manufacturing.

[0028] Figure 4 Schematic diagram of the overall structure of the drive assembly for the detection component.

[0029] Figure 5 The present invention is a schematic diagram of the overall structure of a fixing component for a laser detection device for additive manufacturing.

[0030] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0031] 100, fixed component; 101, shell; 102, cover plate; 103, connecting rivet; 104, accommodating cavity; 200, detection component; 201, driving component; 201a, motor; 201b, driving shaft; 201c, driving gear; 201d, limiting arc block; 201e, bearing disc; 201f, connecting block; 202, moving component; 202a, connecting gear; 202b, connecting gear ring; 202c, supporting disc; 202d, protruding block; 202e, contact column; 203, detection component; 203a, slide groove; 203b, protective cover; 203c, spring; 203d, resisting block; 300, fixed component; 301, limiting groove; 302, guide wheel; 303, tension spring; 304, hinged seat; 305, connecting rod; 306, arc plate. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Specific embodiment 1

[0034] See also Figure 1-4 The utility model is a laser detection device for additive manufacturing, comprising:

[0035] The fixing component 100 includes a housing 101, a cover plate 102 disposed on the top of the housing 101, the housing 101 and the cover plate 102 are connected by connecting rivets 103, and a receiving cavity 104 disposed at the bottom of the housing 101;

[0036] The detection component 200 includes a driving component 201 disposed inside the housing 101, a moving component 202 disposed outside the driving component 201, and a detection component 203 disposed inside the moving component 202;

[0037] The driving assembly 201 includes a motor 201a fixed inside the accommodating cavity 104, a driving shaft 201b fixed to the driving end of the motor 201a, a driving gear 201c sleeved on the outer wall of the driving shaft 201b, a bearing disc 201e fixed to the top of the driving shaft 201b, a limiting arc block 201d fixed to the periphery of the bearing disc 201e, and a connecting block 201f arranged outside the bearing disc 201e;

[0038] The moving assembly 202 includes a connecting gear 202a arranged on one side of the driving gear 201c, a connecting gear ring 202b arranged on one side of the connecting gear 202a, a supporting disc 202c fixed to the bottom of the connecting gear ring 202b, a protruding block 202d fixed to the top of the connecting gear ring 202b, a contact column 202e arranged on the top of the connecting gear ring 202b, and a detection probe fixedly connected to the inner side of the contact column 202e.

[0039] Specifically, the driving gear 201c is meshed with the connecting gear 202a, the driving gear 201c and the driving shaft 201b are fixedly connected, the limiting arc block 201d is rotationally connected to the connecting block 201f, the connecting block 201f is fixedly connected to the inner wall of the outer shell 101, the connecting gear 202a is meshed with the connecting gear ring 202b, the supporting disc 202c is rotationally connected to the inner wall of the outer shell 101, the driving end of the motor 201a passes through the driving shaft 201b, and the driving end of the motor 201a is rotationally connected to the driving shaft 201b.

[0040] The operation process of this embodiment is as follows: first, the motor 201a is started, and the driving shaft 201b is rotated under the action of the motor 201a, and the driving shaft 201b is fixedly connected to the carrying disc 201e, and the carrying disc 201e serves as a carrier of the finished product to be detected, so when the carrying disc 201e rotates, the finished product will also rotate, thereby realizing a full-scale scanning of the finished product, and secondly, a driving gear 201c is connected to the bottom of the driving shaft 201b, and the driving gear 201c is meshed and connected with the connecting gear 202a, and the other end of the connecting gear 202a is meshed and connected with the connecting gear 202a. One side is meshed with the connecting gear ring 202b, so when the active gear 201c rotates, the connecting gear ring 202a can drive the connecting gear ring 202b to rotate, and the connecting gear ring 202b is fixedly connected to the top of the connecting gear ring 202b. The connecting gear ring 202b is formed into a hill-like shape after a series of cutting. When the protruding block 202d rotates, it will lift up the contact column 202e in turn, thereby driving the detection probe on one side of the contact column 202e to move, thereby realizing a more comprehensive scan of the finished product, making the detection of the finished product more comprehensive. Specific embodiment 2

[0042] See also Figure 2 and 3 On the basis of the specific embodiment 1, the detection component 203 includes a slide groove 203a opened inside the connecting block 201f, a protective cover 203b fixed to the top of the connecting block 201f, a strip hole opened on the inner side of the protective cover 203b, a spring 203c arranged inside the slide groove 203a, and a stop block 203d fixed to the top of the spring 203c.

[0043] Specifically, the protective cover 203b is slidably connected to the contact column 202e, the stop block 203d is fixedly connected to the contact column 202e, the end of the spring 203c is fixedly connected to the end of the stop block 203d, and the other end of the spring 203c is fixedly connected to the inside of the slide groove 203a. The width of the strip hole set on the protective cover 203b is greater than the diameter of the detection probe set on the contact column 202e, and the detection probe is set inside the strip hole.

[0044] The operation process of this embodiment is as follows: during the rotation of the driving shaft 201b, the limiting arc block 201d will also rotate, and during the rotation of the limiting arc block 201d, the contact column 202e will be forced to move upward. When the contact column 202e moves upward, it will drive the detection probe on one side to move upward. When the limiting arc block 201d continues to rotate, it will detach from the contact column 202e, and will contact the next contact column 202e to lift it up. When the limiting arc block 201d detaches from a contact column 202e, the contact column 202e will return to its original position under the action of the spring 203c, thereby realizing the up and down reciprocating movement of the contact column 202e, and indirectly achieving the up and down movement of the detection probe, thereby realizing a more comprehensive scanning and detection of the finished product.

[0045] It should be noted that the curvature and height of the limiting arc block 201d can be adaptively adjusted according to the height of the finished product, so as to facilitate more comprehensive scanning and detection of the finished product. Specific embodiment three

[0047] See also Figure 5 On the basis of the specific embodiment 1 and the specific embodiment 2, it also includes an installation component 300, including a limiting groove 301 opened inside the supporting disk 201e, a guide wheel 302 arranged inside the limiting groove 301, a tension spring 303 arranged on the guide wheel 302, a connecting rod 305 arranged on one side of the guide wheel 302, a hinge seat 304 arranged on one side of the connecting rod 305, and an arc plate 306 fixed to one side of the hinge seat 304.

[0048] Specifically, the guide wheels 302 cooperate with each other and are evenly arranged inside the limiting groove 301. The guide wheels 302 are slidably connected to the limiting groove 301. The connecting rod 305 is hinged to the guide wheels 302. The two ends of the tension spring 303 are respectively fixedly connected to the opposite sides of the two adjacent guide wheels 302.

[0049] The operation process of this embodiment is as follows: first, the additively manufactured finished product is installed, and the arc plate 306 is pushed outward. At this time, under the action of the connecting rod 305, the distance between the two guide wheels 302 connected by the tension spring 303 will become larger, that is, the tension spring 303 is deformed and stretched at this time, and then the finished product is placed inside the circular receiving groove formed by the arc plate 306, and then the arc plate 306 is released. Due to the deformation of the tension spring 303, a reset effect will inevitably occur, thereby pulling the guide wheels 302 back and approaching each other, so that the distance between the connecting rods 305 becomes smaller, and indirectly pushing the arc plate 306 to move inward, that is, the space formed by the arc plate 306 will become smaller, thereby clamping the finished product.

[0050] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0051] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A laser detection device for additive manufacturing, characterized in that: include: A fixing component (100) comprising a housing (101), a cover plate (102) arranged on the top of the housing (101), the housing (101) and the cover plate (102) being connected via a connecting rivet (103), and a receiving cavity (104) arranged at the bottom of the housing (101); A detection component (200), comprising a driving component (201) disposed inside the housing (101), a moving component (202) disposed outside the driving component (201), and a detection component (203) disposed inside the moving component (202); The driving assembly (201) comprises a motor (201a) fixed inside the accommodating cavity (104), a driving shaft (201b) fixed to the driving end of the motor (201a), a driving gear (201c) sleeved on the outer wall of the driving shaft (201b), a bearing disc (201e) fixed to the top of the driving shaft (201b), a limiting arc block (201d) fixed to the periphery of the bearing disc (201e), and a connecting block (201f) arranged outside the bearing disc (201e); The moving assembly (202) comprises a connecting gear (202a) arranged on one side of the driving gear (201c), a connecting gear ring (202b) arranged on one side of the connecting gear (202a), a supporting disc (202c) fixed to the bottom of the connecting gear ring (202b), a protruding block (202d) fixed to the top of the connecting gear ring (202b), a contact column (202e) arranged on the top of the connecting gear ring (202b), and a detection probe fixedly connected to the inner side of the contact column (202e); The detection component (203) comprises a slide groove (203a) opened inside the connecting block (201f), a protective cover (203b) fixed to the top of the connecting block (201f), a strip hole opened on the inner side of the protective cover (203b), a spring (203c) arranged inside the slide groove (203a), and a stop block (203d) fixed to the top of the spring (203c).

2. The laser detection device for additive manufacturing according to claim 1, characterized in that: The driving gear (201c) is meshed with the connecting gear (202a), the driving gear (201c) is fixedly connected to the driving shaft (201b), the limiting arc block (201d) is rotatably connected to the connecting block (201f), and the connecting block (201f) is fixedly connected to the inner wall of the housing (101).

3. The laser detection device for additive manufacturing according to claim 1, characterized in that: The connecting gear (202a) is meshed with the connecting gear ring (202b), the supporting disc (202c) is rotatably connected to the inner wall of the housing (101), the driving end of the motor (201a) passes through the driving shaft (201b), and the driving end of the motor (201a) is rotatably connected to the driving shaft (201b).

4. The laser detection device for additive manufacturing according to claim 1, characterized in that: The protective cover (203b) is slidably connected to the contact column (202e), the stop block (203d) is fixedly connected to the contact column (202e), the end of the spring (203c) is fixedly connected to the end of the stop block (203d), and the other end of the spring (203c) is fixedly connected to the inside of the slide groove (203a).

5. The laser detection device for additive manufacturing according to claim 1, characterized in that: The width of the strip-shaped hole provided on the protective cover (203b) is greater than the diameter of the detection probe provided on the contact column (202e), and the detection probe is provided inside the strip-shaped hole.

6. The laser detection device for additive manufacturing according to claim 1, characterized in that: It also includes an installation component (300), including a limiting groove (301) opened inside the supporting disc (201e), a guide wheel (302) arranged inside the limiting groove (301), a tension spring (303) arranged on the guide wheel (302), a connecting rod (305) arranged on one side of the guide wheel (302), a hinge seat (304) arranged on one side of the connecting rod (305), and an arc plate (306) fixed to one side of the hinge seat (304).

7. The laser detection device for additive manufacturing according to claim 6, characterized in that: The guide wheels (302) cooperate with each other in pairs and are evenly arranged inside the limiting groove (301), and the guide wheels (302) are slidably connected to the limiting groove (301).

8. The laser detection device for additive manufacturing according to claim 6, characterized in that: The connecting rod (305) is hinged to the guide wheel (302), and two ends of the tension spring (303) are respectively fixedly connected to opposite sides of two adjacent guide wheels (302).

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