Intelligent detection device for mechanical parts

Abstract

The invention relates to the field of laser detection equipment, in particular to an intelligent mechanical part detection device which comprises a wireless laser sensor and further comprises an outer sleeve which is in an arc shape, tangent planes are symmetrically cut at the two ends of the outer sleeve relative to a body of the outer sleeve, and the tangent planes are parallel to each other; and the inner sleeve is in an arc shape and freely slides in the outer sleeve, and the inner sleeve is formed by connecting a front-section pipe, a middle-section pipe and a tail-section pipe. According to the intelligent mechanical part detection device provided by the invention, under the action of centrifugal force and gravity, the rotation dynamic balance of the three-section type inner sleeve to the outer sleeve is balanced, and the opening or closing of the arc-shaped opening of the outer sleeve is controlled, so that the wireless laser sensor on the outer sleeve can rotate around a detected workpiece at a high speed; and the laser diameter measuring equipment can also realize taking and placing of complex workpieces, and effectively solves the problem that laser diameter measuring equipment in the prior art is difficult to realize multi-angle three-dimensional detection on local components in products with complex structures.

Description

Technical Field

[0001] This invention relates to the field of laser inspection equipment, and in particular to an intelligent inspection device for mechanical parts. Background Technology

[0002] A laser diameter measuring device is a device that obtains the diameter data of a part by illuminating both sides of the part with a laser sensor. The distance between the two laser sensors is fixed. When an object is in between them, the diameter of the object is obtained by subtracting the sum of the distances between the two laser sensors and the object from the distance between the laser sensors. Therefore, this type of detection device does not require the object to be in the exact center of the two sensors. It is usually used to detect products such as pipes and ropes.

[0003] In existing laser diameter measuring equipment, the laser sensor and the main frame of the equipment are relatively fixed, and the product being measured passes between two laser sensors. Therefore, it can usually only detect the diameter data of the product in one radial direction. If a more comprehensive and three-dimensional database is required, the product needs to be rotated while being transported. However, in actual production activities, the detection conditions are not always ideal. Rotating products are not suitable for complex detection conditions. For example, if a component is a pipe with other components with a large span welded to both ends, it will expose the problems of needing a large operating space and strong rotation support to rotate the product, as well as the production safety issues and additional costs caused by the product rotation.

[0004] Therefore, to address the limitations of the aforementioned laser diameter measuring equipment, an intelligent inspection device for mechanical parts is proposed. Summary of the Invention

[0005] In view of the problem that laser diameter measuring equipment in the above or existing technologies is difficult to achieve multi-angle three-dimensional detection of local components in complex structural products, this invention is proposed.

[0006] Therefore, the purpose of this invention is to provide an intelligent inspection device for mechanical parts.

[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution: an intelligent detection device for mechanical parts, including a wireless laser sensor, and further comprising: an outer sleeve, which is arc-shaped, with symmetrical cut surfaces at both ends about its body, and the cut surfaces being parallel to each other; an inner sleeve, which is arc-shaped and slides freely inside the outer sleeve, and the inner sleeve is composed of a front section tube, a middle section tube, and a tail section tube connected together, wherein the arc of the middle section tube plus the arc of the outer sleeve equals 360 arcs, and when the overlap between the middle section tube and the outer sleeve is zero, the end faces at both ends of the middle section tube can slide radially outward along the outer sleeve against the cut surfaces, and its sliding limit position is one end of the major axis of the elliptical contour of the end face of the middle section tube, which coincides with one end of the major axis of the elliptical contour of the cut surface, and the peripheral walls of the outer sleeve and the inner sleeve at the coinciding end are spliced ​​into a complete circle; a bracket, which is arc-shaped matching the shape of the outer sleeve, and a roller assembly is rotatably arranged on one side of the bracket, the roller assembly rollingly clamping the outer sleeve, and the roller assembly being distributed in three sets in a ring array about the arc axis of the outer sleeve.

[0008] As a preferred embodiment of the intelligent inspection device for mechanical parts of the present invention, the inner wall of the outer sleeve is provided with a sliding groove, and the front section tube is slidably connected to the sliding groove by ball bearings.

[0009] In a preferred embodiment of the intelligent inspection device for mechanical parts of the present invention, when the arc opening contour of the intermediate tube coincides with that of the inner sleeve, a stop pin is inserted inside the outer sleeve parallel to its axial direction and abuts against the end of the tail tube.

[0010] In a preferred embodiment of the intelligent inspection device for mechanical parts of the present invention, the front section tube, the middle section tube and the tail section tube are continuously provided with circular holes, and the circular holes on the front section tube, the middle section tube and the tail section tube are flared at the joint, and a tension spring is sleeved between the front section tube, the middle section tube and the tail section tube through the circular holes, and the two ends of the tension spring are respectively hooked to the ends of the front section tube and the tail section tube.

[0011] As a preferred embodiment of the intelligent inspection device for mechanical parts of the present invention, the connecting end faces of the front section tube and the middle section tube are provided with hanging grooves and hanging pins. When the end faces of the front section tube and the middle section tube are aligned, the hanging pins can only slide along the hanging grooves to the outside of the outer tube.

[0012] In a preferred embodiment of the intelligent inspection device for mechanical parts of the present invention, the connection structure between the tail section tube and the middle section tube is the same as the connection structure between the front section tube and the middle section tube.

[0013] As a preferred embodiment of the intelligent inspection device for mechanical parts of the present invention, each roller assembly consists of a main roller and a secondary roller. The diameter of the main roller is larger than that of the secondary roller, and it is located on the outside of the outer tube to bear the centrifugal force of the rotation of the outer tube. The secondary roller is located on the inside of the outer tube to support the outer tube and allow the outer tube to rotate around its arc axis.

[0014] In a preferred embodiment of the intelligent inspection device for mechanical parts of the present invention, one of the main rollers is connected to a coupling for connecting a drive motor.

[0015] As a preferred embodiment of the intelligent inspection device for mechanical parts of the present invention, wherein: a mounting seat is symmetrically arranged on the side of the outer sleeve away from the support about its body, the mounting seat is raised so that its movement trajectory is not gapped with the roller assembly, and a pair of corresponding wireless laser sensors are fixed to the two mounting seats respectively.

[0016] In a preferred embodiment of the intelligent inspection device for mechanical parts of the present invention, the bracket has welded columns on both sides for installation.

[0017] The beneficial effects of the intelligent mechanical parts inspection device of the present invention are as follows: The intelligent mechanical parts inspection device provided by the present invention, through the action of centrifugal force and gravity, enables the rotational dynamic balance of the three-section inner sleeve to the outer sleeve and controls the opening or closing of the arc-shaped opening of the outer sleeve. This allows the wireless laser sensor on the outer sleeve to rotate at high speed around the workpiece being measured, and also enables the picking and placing of complex workpieces. It effectively solves the problem that existing laser diameter measuring equipment is difficult to achieve multi-angle three-dimensional inspection of local components in complex structural products. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of an intelligent inspection device for mechanical parts.

[0020] Figure 2 for Figure 1 A structural diagram from another perspective.

[0021] Figure 3 This is a structural diagram of the bracket and roller assembly.

[0022] Figure 4 This is a sectional view of the assembly structure of the outer sleeve and the inner sleeve.

[0023] Figure 5 This is a sectional view of the inner sleeve.

[0024] Figure 6 This is an exploded view of the assembly structure between the front section, middle section, and tail section of the inner sleeve.

[0025] In the diagram: 100, outer sleeve; 101, cut surface; 102, groove; 103, stop pin; 104, mounting base; 200, inner sleeve; 201, front section tube; 202, middle section tube; 203, tail section tube; 204, round hole; 205, tension spring; 206, hanging groove; 207, hanging nail; 300, bracket; 301, roller assembly; 302, main roller; 303, auxiliary roller; 304, coupling; 400, wireless laser sensor. Detailed Implementation

[0026] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0027] Example, refer to Figures 1-6 This embodiment provides an intelligent inspection device for mechanical parts. Through the arc-shaped open inspection structure, it can realize the local inspection of complex structure products. Through the high-speed rotation of the arc structure, it can achieve the local multi-angle three-dimensional inspection effect of complex structure products.

[0028] refer to Figure 1 and Figure 2 It includes a wireless laser sensor 400, an outer sleeve 100, and an inner sleeve 200. The outer sleeve 100 is arc-shaped, with symmetrical cut surfaces 101 at both ends about its body, and the cut surfaces 101 are parallel to each other; Reference Figure 4 The inner sleeve 200 is arc-shaped and can slide freely within the outer sleeve 100. (See reference) Figure 6 The inner sleeve 200 is composed of a front section 201, a middle section 202, and a tail section 203 connected together, as shown in the reference. Figure 1 The arc of the intermediate tube 202 plus the arc of the outer tube 100 equals 360 arcs. When the overlap between the intermediate tube 202 and the outer tube 100 is zero, the end faces of both ends of the intermediate tube 202 can slide radially outward along the outer tube 100 against the tangent 101. The sliding limit position is where one end of the major axis of the elliptical profile of the end face of the intermediate tube 202 coincides with one end of the major axis of the elliptical profile of the tangent 101. The outer tube 100 and the inner tube 200 periphery where this coincident end is located are joined to form a complete circle. (Reference) Figure 2 and Figure 3The bracket 300 and the outer tube 100 are matched in shape and are arc-shaped. A roller assembly 301 is rotatably provided on one side of the bracket 300. The roller assembly 301 rolls and clamps the outer tube 100. The roller assembly 301 is arranged in three sets in a ring array about the arc axis of the outer tube 100.

[0029] For details, please refer to Figure 2 On the side of the outer tube 100 away from the bracket 300, mounting seats 104 are symmetrically arranged about its body. Columns are welded to both sides of the bracket 300 for mounting. The mounting seats 104 are raised to ensure that their movement trajectory is not obstructed by the roller assembly 301. A pair of corresponding wireless laser sensors 400 are fixed to the two mounting seats 104 respectively. (Reference) Figure 4 The inner wall of the outer tube 100 is provided with a groove 102, and the front tube 201 is slidably connected to the groove 102 by ball bearings (the rolling path between the ball bearings and the front tube 201 is implemented in the form of a ball rolling structure in a linear bearing in the prior art), see reference. Figure 5 When the arc-shaped opening contour of the middle section tube 202 coincides with that of the inner sleeve 200, a stop pin 103 is inserted into the outer sleeve 100 parallel to its axis and abuts against the end of the tail section tube 203; a circular hole 204 is continuously opened between the front section tube 201, the middle section tube 202, and the tail section tube 203, and the circular holes 204 on the front section tube 201, the middle section tube 202, and the tail section tube 203 are flared at the joint, and a tension spring 205 is sleeved between the front section tube 201, the middle section tube 202, and the tail section tube 203 through the circular hole 204, with the two ends of the tension spring 205 respectively hooked to the ends of the front section tube 201 and the tail section tube 203, for reference. Figure 6 Both the front section pipe 201 and the middle section pipe 202 are provided with hanging grooves 206 and hanging nails 207 on their connecting end faces. When the end faces of the front section pipe 201 and the middle section pipe 202 are aligned, the hanging nails 207 can only slide along the hanging grooves 206 to the outside of the outer sleeve pipe 100. The connection structure between the tail section pipe 203 and the middle section pipe 202 is the same as the connection structure between the front section pipe 201 and the middle section pipe 202.

[0030] The intelligent inspection device for mechanical parts proposed in this invention mainly provides a device that allows wireless laser sensors 400 to rotate at high speed around the workpiece being tested, and also allows the workpiece to be easily placed between the wireless laser sensors 400. Its structure is roughly as follows: the outer tube 100 is supported by a bracket 300 and a roller assembly 301 to rotate around its arc axis. The wireless laser sensors 400 are mounted on the mounting base 104 on the outer wall of the outer tube 100. The workpiece being tested is placed between the wireless laser sensors 400 through the opening of the arc shape of the outer tube 100. The main roller 302 in the roller assembly 301 is driven, and the main roller 302 drives the outer tube 100 to rotate through friction.

[0031] Obviously, the data acquisition quality of the workpiece being tested is positively correlated with the rotation speed of the wireless laser sensor 400 around the workpiece. As the workpiece is moved along the arc-shaped axis of the outer sleeve 100, the faster the wireless laser sensor 400 rotates around the workpiece, the denser the spiral path swept by the laser on the surface of the workpiece, resulting in higher accuracy, more complete data, and improved detection efficiency. Therefore, when the present invention drives the wireless laser sensor 400 to rotate around the workpiece being measured by the outer tube 100, the technical problem actually involved is how to enable the arc-shaped outer tube 100 to rotate at high speed and stably around the axis of its arc shape.

[0032] To achieve the above-mentioned functional objectives, refer to Figures 4-6 The present invention proposes a combined structure of an outer sleeve 100 and an inner sleeve 200: Taking the removal of the workpiece after a test as an example, control the stop position of the outer sleeve 100 so that the opening of its arc shape faces upward. At this time, the centrifugal force is lost, and under the action of the tension spring 205, the middle section tube 202 retracts downward to the zero position, so that the end faces connecting the middle section tube 202, the front section tube 201, and the tail section tube 203 are no longer misaligned. Since the length of the front section tube 201 is greater than that of the tail section tube 203, and the front section tube 201 also contains a large number of balls, under the action of gravity, the inner sleeve 200 slides down along the outer sleeve 100 towards the side of its front section tube 201 until the entire inner sleeve 200 is completely inside the outer sleeve 100. At this time, the top of the outer sleeve 100 is no longer closed by the inner sleeve 200, and the workpiece to be tested can be placed in. After placing the workpiece to be tested, with Figure 4 Taking the perspective as an example, when the outer sleeve 100 is driven to rotate counterclockwise at a low speed, under the action of inertia, the outer sleeve 100 and the inner sleeve 200 will slide together, causing the inner sleeve 200 to slide out of the outer sleeve 100 again until the end of the tail section 203 of the inner sleeve 200 abuts against the stop pin 103. When the abutment occurs and for a period of time after the abutment occurs, the inner sleeve 200 cannot slide relative to the outer sleeve 100, but is driven to rotate together by the outer sleeve 100 and the stop pin 103. At this time, the middle section 202 is exactly inside the arc-shaped notch of the outer sleeve 100. Under the action of centrifugal force, the middle section 202 overcomes the tension of the tension spring 205 and is thrown to slide to the outside of the outer sleeve 100. For more specific details, please refer to Figure 1The left end of the middle section tube 202 shows two parallel cross-sections 101 at both ends of the outer sleeve 100, and the end face of the inner sleeve 200 that is parallel to the parallel cross-sections 101. This structure can meet the structural requirement of the middle section tube 202 sliding outward. When this sliding occurs, the outer sleeve 100 can be driven to rotate and accelerate until the rotational speed of the outer sleeve 100 satisfies the condition that "one end of the major axis of the elliptical profile of the end face of the middle section tube 202 coincides with one end of the major axis of the elliptical profile of the cross-section 101". Figure 1 Taking the perspective as an example, it can be clearly seen that the overlapping position is located at the top of the cross-section 101 of the outer sleeve 100. This makes it possible to achieve "the outer sleeve 100 and the inner sleeve 200 where the overlapping end is located are spliced ​​into a complete circle". In this way, the outer sleeve 100 and the inner sleeve 200 are closed loops, and the steps between their outer walls and the main rollers 302 are eliminated. This allows the outer sleeve 100, the inner sleeve 200 and the installed wireless laser sensor 400 to roll smoothly over all the main rollers 302, avoiding bumps and vibrations caused by surface steps. The inner sleeve 200 also serves an important function as a primary counterweight. Obviously, when the outer sleeve 100 rotates, the weight distribution around its rotation axis is uneven due to the gap on the outer sleeve 100, resulting in extremely poor dynamic balance. With the inner sleeve 200, the weight gap caused by the imbalance of the outer sleeve 100 rotation is greatly filled without affecting the loading and unloading of the workpiece by the outer sleeve 100. Only a small number of counterweights need to be attached in appropriate positions to balance the rotational dynamic balance of this invention (the operation method can be referred to the dynamic balancing counterweight technology of automobile wheel hubs, which will not be repeated in this article), realizing the high-speed rotation of the wireless laser sensor 400 around the workpiece.

[0033] refer to Figure 1 and Figure 3 Each roller assembly 301 consists of a main roller 302 and an auxiliary roller 303. The diameter of the main roller 302 is larger than that of the auxiliary roller 303, and it is located on the outside of the outer tube 100 to bear the centrifugal force of the rotation of the outer tube 100. The auxiliary roller 303 is located on the inside of the outer tube 100 to support the outer tube 100 and allow the outer tube 100 to rotate around its arc axis. The shaft of one of the main rollers 302 is connected to a coupling 304 for connecting a drive motor. When the present invention is in operation, at least two sets of roller assemblies 301 always roll and clamp the outer tube 100. Since the outer tube 100 has an arc shape, and both the main roller 302 and the auxiliary roller 303 are hourglass-shaped with thicker ends and a thinner middle, when only two sets of roller assemblies 301 clamp the outer tube 100, they can effectively prevent the outer tube 100 from moving in the direction perpendicular to its rotation axis. However, the ability to suppress the sway of the rotation axis of the outer tube 100 is relatively weak. This condition occurs when the outer tube 100 rotates. During the low-speed start-up phase, the sliding resistance between the inner sleeve 200 and the outer sleeve 100 is designed to be very small, so the time for the aforementioned weakly stable working condition to occur is extremely short. The outer sleeve 100 is designed to rotate about half a turn at start-up, at which point the inner sleeve 200 at its bottom can be "thrown out". The outer sleeve 100 is designed to rotate 1 to 1.5 turns, at which point the middle section of the tube 202 reaches the working position and working pressure due to centrifugal force. The inner sleeve 200 abuts against the main roller 302, which helps to keep the rotation axis of the outer sleeve 100 stable.

[0034] In summary, the intelligent mechanical parts detection device provided by this invention, through the action of centrifugal force and gravity, enables the rotational dynamic balance of the three-section inner sleeve 200 and the outer sleeve 100, and controls the opening or closing of the arc-shaped opening of the outer sleeve 100. This allows the wireless laser sensor 400 on the outer sleeve 100 to rotate at high speed around the workpiece being measured, and also enables the picking and placing of complex workpieces. It effectively solves the problem that existing laser diameter measuring equipment is unable to achieve multi-angle three-dimensional detection of local components in complex structural products.

[0035] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. An intelligent inspection device for mechanical parts, comprising a wireless laser sensor (400), characterized in that, Also includes: The outer tube (100) is arc-shaped, with symmetrical cut surfaces (101) at both ends about its body, and the cut surfaces (101) are parallel to each other; The inner sleeve (200) is arc-shaped and slides freely inside the outer sleeve (100). The inner sleeve (200) is composed of a front section (201), a middle section (202), and a tail section (203). The arc of the middle section (202) plus the arc of the outer sleeve (100) equals 360 arcs. When the overlap between the middle section (202) and the outer sleeve (100) is zero, the end faces of the two ends of the middle section (202) can slide radially outward along the outer sleeve (100) in contact with the tangent (101). The sliding limit position is one end of the major axis of the elliptical outline of the end face of the middle section (202) and one end of the major axis of the elliptical outline of the tangent (101). The outer sleeve (100) and the inner sleeve (200) at the overlapping end are spliced ​​together to form a complete circle. The bracket (300) is arc-shaped and matches the outer tube (100). A roller assembly (301) is rotatably provided on one side of the bracket. The roller assembly (301) rolls and clamps the outer tube (100). The roller assembly (301) is arranged in three groups in a ring array about the arc axis of the outer tube (100).

2. The intelligent inspection device for mechanical parts as described in claim 1, characterized in that: The inner wall of the outer tube (100) is provided with a groove (102), and the front tube (201) is slidably connected to the groove (102) by ball bearings.

3. The intelligent inspection device for mechanical parts as described in claim 1, characterized in that: When the arc opening contour of the intermediate tube (202) coincides with that of the inner sleeve (200), a stop pin (103) is inserted inside the outer sleeve (100) parallel to its axis and abuts against the end of the tail tube (203).

4. The intelligent inspection device for mechanical parts as described in claim 1, characterized in that: A circular hole (204) is continuously provided between the front section tube (201), the middle section tube (202), and the tail section tube (203). The circular holes (204) on the front section tube (201), the middle section tube (202), and the tail section tube (203) are flared at the joint. A tension spring (205) is sleeved between the front section tube (201), the middle section tube (202), and the tail section tube (203) through the circular hole (204). The two ends of the tension spring (205) are respectively hooked to the ends of the front section tube (201) and the tail section tube (203).

5. The intelligent inspection device for mechanical parts as described in claim 4, characterized in that: The connecting end faces of the front section tube (201) and the middle section tube (202) are provided with hanging grooves (206) and hanging nails (207). When the end faces of the front section tube (201) and the middle section tube (202) are aligned, the hanging nails (207) can only slide along the hanging grooves (206) to the outside of the outer tube (100).

6. The intelligent inspection device for mechanical parts as described in claim 5, characterized in that: The connection structure between the tail section pipe (203) and the middle section pipe (202) is the same as the connection structure between the front section pipe (201) and the middle section pipe (202).

7. The intelligent inspection device for mechanical parts as described in claim 1, characterized in that: Each of the roller assemblies (301) consists of a main roller (302) and a secondary roller (303). The main roller (302) has a larger diameter than the secondary roller (303) and is located on the outside of the outer tube (100) to bear the centrifugal force of the rotation of the outer tube (100). The secondary roller (303) is located on the inside of the outer tube (100) to support the outer tube (100) so that the outer tube (100) can rotate around its arc axis.

8. The intelligent inspection device for mechanical parts as described in claim 7, characterized in that: One of the main rollers (302) has a shaft connected to a coupling (304) for connecting to a drive motor.

9. The intelligent inspection device for mechanical parts as described in claim 1, characterized in that: The outer tube (100) is symmetrically provided with mounting bases (104) on the side away from the bracket (300) about its body. The mounting bases (104) are raised so that their movement trajectory is not in the gap with the roller assembly (301). A pair of corresponding wireless laser sensors (400) are fixed to the two mounting bases (104) respectively.

10. The intelligent inspection device for mechanical parts as described in claim 1, characterized in that: The bracket (300) has welded columns on both sides for installation.

Images