Probe assembly, thickness measuring device, and laser processing apparatus

Abstract

A kind of probe assembly, thickness measuring device and laser processing equipment, probe assembly includes support rod, measuring rod and universal structure;Wherein, measuring rod is used to contact the piece to be measured;Universal structure connects support rod and measuring rod, measuring rod is rotatably connected with universal structure, measuring rod can rotate around rotation axis, and rotation axis intersects with the axial direction of support rod.Probe assembly can achieve anti-collision effect, solve the equipment damage problem caused by the collision between processing platform and thickness measuring device, and reduce cost.

Description

Technical Field

[0001] This utility model relates to the field of laser processing technology, specifically to a probe assembly, a thickness measuring device, and a laser processing equipment. Background Technology

[0002] In laser processing equipment, the workpiece thickness needs to be measured before processing. Using traditional contact-type thickness gauges, operational errors or incorrect program settings during machine setup can cause collisions between the processing platform and the thickness gauge probe during measurement. Such collisions can range from damaging the probe to affecting the accuracy of the processing platform. To avoid this problem, the thickness gauge requires anti-collision measures. Utility Model Content

[0003] The purpose of this invention is to provide a probe assembly, a thickness measuring device, and a laser processing equipment to solve the problem that the measuring probe used in laser processing is easily damaged by collision with the processing platform.

[0004] To achieve the objectives of this utility model, the following technical solution is provided: In a first aspect, this utility model provides a probe assembly, which is applied in a thickness measuring device and includes a support rod, a measuring rod, and a universal structure; wherein, the measuring rod is used to contact the workpiece to be measured; the universal structure connects the support rod and the measuring rod, the measuring rod is rotatably connected to the universal structure, the measuring rod is rotatable about a rotation axis, and the rotation axis intersects the axial direction of the support rod.

[0005] In some embodiments, the rotation axis includes an intersecting first rotation axis and a second rotation axis, and the measuring rod is rotatable about the first rotation axis and / or the second rotation axis.

[0006] In some embodiments, the universal structure includes a fixed member and a movable member that are rotatably connected. The fixed member is connected to the support rod, and the movable member is rotatably connected to the measuring rod. The movable member drives the measuring rod to rotate around a first rotation axis, and the measuring rod can rotate around a second rotation axis.

[0007] In some embodiments, the fixing member includes a first end and a second end spaced apart from each other, and the movable member is located between the first end and the second end; the universal structure includes a first rotating pin connecting the movable member, the two opposite ends of the first rotating pin being connected to the first end and the second end respectively, and the first rotation axis being the axis of the first rotating pin; the first rotating pin includes a first pin body and a second pin body, and the universal structure has a first hole and a second hole, the first pin body extending into the first hole and the second pin body extending into the second hole; wherein, the first hole is opened on the first end and the second hole is opened on the second end; the first pin body and the second pin body are connected to opposite sides of the movable member; and / or, the first pin body is connected to the first end and the second pin body is connected to the second end; the first hole and the second hole are opposite to each other on the movable member.

[0008] In some embodiments, the movable component is sleeved on the outer periphery of the measuring rod; the universal structure includes a second rotating pin connecting the measuring rod, the two opposite ends of the second rotating pin being connected to the inner ring surface of the movable component, and the second rotation axis being the axis of the second rotating pin; the second rotating pin includes a third pin and a fourth pin, and the universal structure has a third hole and a fourth hole, the third pin extending into the third hole and the fourth pin extending into the fourth hole; wherein the third hole and the fourth hole are oppositely formed on the movable component; the third pin and the fourth pin are connected to opposite sides of the measuring rod; and / or, the third hole and the fourth hole are oppositely formed on the measuring rod, and the third pin and the fourth pin are connected to the inner ring surface of the movable component.

[0009] In some embodiments, the probe assembly further includes a reset element connected to at least one of the support rod and the measuring rod, the reset element being used to drive the measuring rod to reset after rotation.

[0010] In some embodiments, the reset element includes a first magnet and a second magnet, the first magnet being connected to the support rod and the second magnet being connected to the measuring rod, the first magnet and the second magnet having opposite polarities.

[0011] Secondly, this utility model provides a thickness measuring device, which includes a driving member, a sensor, and a probe assembly as described in the embodiments of the first aspect. The driving member is used to drive the probe assembly to approach or move away from the workpiece to be measured. The probe assembly is rotatable to prevent impact on the workpiece to be measured. The sensor is used to sense the support rod to measure the thickness of the workpiece to be measured.

[0012] In some embodiments, the driving member is used to drive the probe assembly to descend until the probe assembly is lifted, at which point the sensor is used to sense the probe assembly and emit a first position signal; the driving member is used to drive the probe assembly to descend again until the probe assembly is lifted, at which point the sensor is used to sense the probe assembly and emit a second position signal; the absolute value of the difference between the second position signal and the first position signal is the thickness of the test piece.

[0013] Thirdly, this utility model provides a laser processing equipment, including a laser device and a thickness measuring device as described in the second aspect, wherein the laser device processes the workpiece according to the thickness of the workpiece obtained by the thickness measuring device.

[0014] The probe assembly for a thickness measuring device provided by this utility model divides the probe into two sections: a support rod and a measuring rod, which are connected by a universal joint. The measuring rod is rotatably connected to the universal joint, eliminating the risk of collision damage to the processing platform when the probe assembly extends. When the processing platform collides with the measuring rod, the non-fixed measuring rod can swing in any direction, resulting in a smaller impact force on the processing platform. This ensures that neither the measuring rod nor the processing platform is damaged. Therefore, the probe assembly provided by this utility model achieves an anti-collision effect, solving the problem of equipment damage caused by collisions between the processing platform and the thickness measuring device, and reducing costs. Attached Figure Description

[0015] 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.

[0016] Figure 1 This is an external view of a laser processing device according to one implementation method; Figure 2 This is an external view of a thickness measuring device according to one embodiment; Figure 3 A side view of a thickness measuring device according to one embodiment; Figure 4 This is an external view of a probe assembly according to one implementation method; Figure 5 This is a front view of a probe assembly according to one implementation method; Figure 6 A side view of a probe assembly according to one implementation method; Figure 7 This is a front view of a support rod and fastener according to one embodiment; Figure 8 This is an appearance drawing of a movable component in one embodiment; Figure 9 This is a front view of the support rod and fastener according to another embodiment; Figure 10 This is an external view of the moving part in another embodiment; Figure 11 This is a front view of a measuring rod according to one implementation method; Figure 12 This is an external view of the movable component in another embodiment; Figure 13 This is a front view of the measuring rod in another embodiment.

[0017] Explanation of reference numerals in the attached figures: 10-Probe assembly, 11-Support rod, 12-Measuring rod, 13-Universal structure, 131-Fixing component, 1311-First end, 1312-Second end, 1313-Third end, 132-Moving component, 14-First rotating pin, 141-First pin body, 142-Second pin body, 15-Second rotating pin, 151-Third pin body, 152-Fourth pin body, 161-First hole, 162-Second hole, 163-Third hole, 164-Fourth hole, 17-Reset component, 171-First magnet, 172-Second magnet; 100-Thickness measuring device, 20-Driver, 30-Sensor, 40-Mounting plate, 50-Linear bearing, 60-Clamping block; 1000 - Laser processing equipment, 200 - Laser device, 300 - Processing platform; 001 - Z-axis direction, 002 - X-axis direction, 003 - Y-axis direction, A - first rotation axis, B - second rotation axis. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] It should be noted that when a component is said to be "fixed" to another component, it can be directly on the other component or it can be in a middle component. When a component is said to be "connected" to another component, it can be directly connected to the other component or it may be in a middle component.

[0020] Unless otherwise defined, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used in this invention includes any and all combinations of one or more of the associated listed items.

[0021] The following detailed description, in conjunction with the accompanying drawings, outlines some embodiments of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0022] This utility model provides a laser processing equipment 1000. Please refer to it. Figure 1 The laser processing equipment 1000 includes a laser device 200 and a thickness measuring device 100. The laser device 200 processes the workpiece based on the thickness obtained by the thickness measuring device 100. The laser device 200 may include a laser emitter, a lens system, a camera, and a sliding assembly. The laser emitter emits a laser beam, which can be redirected or intensified by the lens system. The camera locates positioning holes or target points on the workpiece before laser processing, ensuring the accuracy of the laser processing. The sliding assembly moves at least one of the laser emitter, lens system, and camera.

[0023] In a specific embodiment, please refer to Figure 1 The laser processing equipment 1000 also includes a processing platform 300, which is placed below the laser device 200 and the thickness measuring device 100. The processing platform 300 is used to place the workpiece. The processing platform 300 can move along the X-axis direction 002 and the Y-axis direction 003.

[0024] For some implementation methods, please refer to Figure 2 and Figure 3 The thickness measuring device 100 includes a drive unit 20, a sensor 30, and a probe assembly 10. The drive unit 20 drives the probe assembly 10 to move closer to or away from the workpiece to be measured. The probe assembly 10 is rotatable to prevent impact on the workpiece. The sensor 30 senses the probe assembly 10 to measure the thickness of the workpiece. Specifically, before laser processing, the thickness of the processing plate is measured by the thickness measuring device 100, eliminating the need for manual measurement, reducing production processing time, and facilitating quick finding of the laser processing focal length during laser processing.

[0025] In a specific embodiment, please refer to Figure 2 and Figure 3The driving component 20 can be a cylinder, used to drive the probe assembly 10 to move along the thickness direction of the workpiece. Optionally, the workpiece is placed on the processing platform 300, with the thickness direction of the workpiece perpendicular to the surface of the processing platform 300 where the workpiece is placed. The probe assembly 10 can move up and down along the thickness direction to accommodate changes in the thickness of the workpiece. In other embodiments, the driving component 20 can also be a motor. Optionally, the thickness direction of the workpiece can be the Z-axis direction 001, and the driving component 20 drives the probe assembly 10 to move along the Z-axis direction 001 as well.

[0026] In a specific embodiment, please refer to Figure 2 and Figure 3 The thickness measuring device 100 may further include a mounting plate 40, which is fixedly connected to the driving component 20. The driving component 20 is used to drive the mounting plate 40 to move, specifically driving the mounting plate 40 to move closer to or away from the workpiece to be measured. The probe assembly 10 is mounted on the mounting plate 40. Optionally, the driving component 20 is a cylinder, which can control the mounting plate 40 to rise or fall by air intake and exhaust, thereby driving the probe assembly 10 to move up and down.

[0027] In a specific embodiment, please refer to Figure 2 and Figure 3 The probe assembly 10 is movably mounted on the mounting plate 40. The probe assembly 10 can move along the Z-axis direction 001. That is, not only can the drive component 20 drive the probe assembly 10 to move through the mounting plate 40, but the probe assembly 10 itself can also move up and down. Optionally, the thickness measuring device 100 may also include a linear bearing 50 and a clamping block 60, both of which are mounted on the mounting plate 40. The probe assembly 10 can pass through the linear bearing 50 and the clamping block 60. The linear bearing 50 is used to restrict the degree of freedom of the probe assembly 10 so that the probe assembly 10 can only move in the Z-axis direction 001.

[0028] In a specific embodiment, please refer to Figure 2 and Figure 3 The sensor 30 can be a photoelectric sensor, which can be positioned along the moving path of the probe assembly 10. The photoelectric sensor senses the probe assembly 10 and generates an electrical signal to determine the thickness of the workpiece. Optionally, the photoelectric sensor can be positioned at the end of the probe assembly 10 facing away from the workpiece. The probe assembly 10 can move closer to or further away from the photoelectric sensor during its vertical movement. When the probe assembly 10 is lifted by the workpiece, it moves towards the photoelectric sensor and triggers the upper photoelectric sensor. After the lifting force is removed, the probe assembly 10 falls under gravity, and the photoelectric sensor resumes its signal.

[0029] For some implementation methods, please refer to Figure 2 and Figure 3The probe assembly 10 includes a support rod 11, a measuring rod 12, and a universal structure 13; wherein, the sensor 30 is used to sense the support rod 11, and the measuring rod 12 is used to contact the part to be measured; the universal structure 13 connects the support rod 11 and the measuring rod 12, the measuring rod 12 is rotatably connected to the universal structure 13, and the measuring rod 12 can rotate around the rotation axis, which intersects the axial direction of the support rod 11.

[0030] In a specific embodiment, please refer to Figure 2 and Figure 3 The probe assembly 10 has a two-section rod structure: an upper support rod 11 and a lower measuring rod 12. Both the support rod 11 and the measuring rod 12 are straight rod structures. The axes of the support rod 11 and the measuring rod 12 coincide, and their axes are the Z-axis direction 001; therefore, the axis of the measuring rod 12 (or the support rod 11) will be referred to as the Z-axis direction 001 below. Of course, in other embodiments, the axes of the support rod 11 and the measuring rod 12 may not coincide, that is, the axes of the support rod 11 and the measuring rod 12 may have an angle other than 0°.

[0031] In a specific embodiment, please refer to Figure 2 and Figure 3 The support rod 11 and measuring rod 12 are spaced apart along their Z-axis direction 001. A universal joint 13 is disposed between the support rod 11 and the measuring rod 12, and the two opposite sides of the universal joint 13 along the Z-axis direction 001 are respectively connected to the support rod 11 and the measuring rod 12, with the universal joint 13 connecting the support rod 11 and the measuring rod 12 in the middle. A sensor 30 is disposed at the end of the support rod 11 away from the measuring rod 12, and the end of the measuring rod 12 away from the support rod 11 is used to contact the workpiece to be measured. The linear bearing 50 and the clamping block 60 mentioned above can be sleeved on the outer periphery of the support rod 11, and the support rod 11 can move up and down relative to the linear bearing 50 and the clamping block 60 in the Z-axis direction 001.

[0032] In a specific embodiment, please refer to Figure 2 and Figure 3 The measuring rod 12 is rotatably connected to the universal joint 13, and the measuring rod 12 is rotatable relative to the support rod 11 via the universal joint 13. The measuring rod 12 may include a first position and a second position, wherein, in the first position, the axes of the support rod 11 and the measuring rod 12 coincide; in the second position, the measuring rod 12 rotates, and the axes of the support rod 11 and the measuring rod 12 have an included angle other than 0°.

[0033] In a specific embodiment, please refer to Figure 2 and Figure 3The axis of rotation is perpendicular to the Z-axis direction 001. After the measuring rod 12 rotates around the axis of rotation, that is, from the first position to the second position, the axial direction of the measuring rod 12 intersects the Z-axis direction 001. Optionally, the axis of rotation can be the X-axis direction 002 and / or the Y-axis direction 003, or any other direction perpendicular to the Z-axis direction 001. It is understood that the axis of rotation is parallel to the surface of the machining platform 300, so the specific direction of extension of the axis of rotation is not limited.

[0034] The probe assembly 10 provided by this utility model for use in the thickness measuring device 100 divides the probe into two sections: a support rod 11 and a measuring rod 12, which are connected by a universal joint 13. The measuring rod 12 is rotatably connected to the universal joint 13. This eliminates the risk of the processing platform 300 colliding with the probe assembly 10 when it extends. When the processing platform 300 collides with the measuring rod 12, the measuring rod 12, being not fixedly installed, can swing in any direction, resulting in a small impact force on the processing platform 300. This avoids damage to the measuring rod 12 and also prevents any impact on the processing platform 300. Therefore, the probe assembly 10 provided by this utility model achieves an anti-collision effect, solving the problem of equipment damage caused by collisions between the processing platform 300 and the thickness measuring device 100, and reducing costs.

[0035] For some implementation methods, please refer to Figures 4-6 The rotation axes include intersecting first rotation axis A and second rotation axis B, and the measuring rod 12 is rotatable about the first rotation axis A and / or the second rotation axis B. Specifically, the measuring rod 12 can rotate about the first rotation axis A and the second rotation axis B respectively through the universal joint 13; the first rotation axis A and the second rotation axis are perpendicular. Optionally, the first rotation axis A can extend along the X-axis direction 002, and the second rotation axis B can extend along the Y-axis direction 003.

[0036] In a specific embodiment, please refer to Figures 4-6 During the movement of the machining platform 300, it can move along the X-axis direction 002 or along the Y-axis direction 003. When the machining platform 300 collides with the measuring rod 12 during its movement along the X-axis direction 002, the measuring rod 12 can rotate around the second rotation axis B, using a coordinated oscillation to avoid a hard impact. Conversely, during the movement of the machining platform 300 along the Y-axis direction 003, the measuring rod 12 can rotate around the first rotation axis A. Simultaneously, through the coordinated movement of the first rotation axis A and the second rotation axis B, the measuring rod 12 can also oscillate in any direction.

[0037] For some implementation methods, please refer to Figures 4-6The universal structure 13 includes a fixed part 131 and a movable part 132 that are rotatably connected. The fixed part 131 is connected to the support rod 11, and the movable part 132 is rotatably connected to the measuring rod 12. The movable part 132 drives the measuring rod 12 to rotate around the first rotation axis A and the measuring rod 12 to rotate around the second rotation axis B.

[0038] In a specific embodiment, please refer to Figures 4-6 The fixing member 131 is connected and fixed to the support rod 11. The fixing member 131 and the support rod 11 can be an integral structure, that is, the fixing member 131 and the support rod 11 can be formed by injection molding or 3D printing. The fixing member 131 is connected to the end of the support rod 11 away from the sensor 30. In other embodiments, the fixing member 131 and the support rod 11 can be an assembled structure, that is, the two can be connected by snap-fit, welding, screwing, bonding, etc. In other embodiments, the fixing member 131 can also be rotatably connected to the support rod 11, that is, the fixing member 131 can rotate around the axis of the support rod 11, thereby enhancing the effect of the measuring rod 12 being able to rotate in all directions.

[0039] In other implementations, please refer to Figures 4-6 The movable component 132 and the fixed component 131 are rotatably connected, and the movable component 132 can rotate about the first rotation axis A. It can be understood that the movable component 132 can rotate on its own axis about the first rotation axis A, and the measuring rod 12 is connected to the movable component 132. Therefore, the movable component 132 drives the measuring rod 12 to rotate, so that the measuring rod 12 rotates about the first rotation axis A. Simultaneously, the measuring rod 12 is rotatably connected to the movable component 132, and the measuring rod 12 itself can also rotate about the second rotation axis B.

[0040] For some implementation methods, please refer to Figures 4-6 The fixing member 131 includes a first end 1311 and a second end 1312 that are spaced apart from each other, and the movable member 132 is located between the first end 1311 and the second end 1312; the universal structure 13 includes a first rotating pin 14 that connects to the movable member 132, and the two opposite ends of the first rotating pin 14 are respectively connected to the first end 1311 and the second end 1312, and the first rotation axis A is the axis of the first rotating pin 14.

[0041] In a specific embodiment, please refer to Figures 4-6The fixing member 131 can be a "U" shaped structure, with a third end 1313 between the first end 1311 and the second end 1312, and the third end 1313 is connected to the support rod 11. The first end 1311 and the second end 1312 are arranged opposite each other along the direction of the first rotation axis A (X-axis direction 002), and the movable member 132 and the measuring rod 12 are both located between the first end 1311 and the second end 1312. The movable member 132 is connected to the first end 1311 and the second end 1312 through the first rotating pin 14, so that the movable member 132 can rotate about the first rotating pin 14 as the rotation axis, and the movable member 132 can rotate on the fixing member 131.

[0042] In a specific embodiment, please refer to Figures 4-6 Alternatively, the first rotating pin 14 can be fixedly connected to the movable part 132, meaning the two will not move relative to each other; or the first rotating pin 14 can be movably connected to the fixed part 131, meaning both ends of the first rotating pin 14 are movably connected to the first end 1311 and the second end 1312 respectively, allowing them to move relative to each other.

[0043] In a specific embodiment, please refer to Figures 4-6 The first rotating pin 14 can be a rotating shaft extending along the X-axis direction 002. The first rotating pin 14 passes through (or does not pass through) the movable member 132, and the first rotating pin 14 is fixedly connected to the movable member 132. The first end 1311 and the second end 1312 have opposing holes, and both ends of the first rotating pin 14 extend into the holes, and the first rotating pin 14 is movable within the holes. Alternatively, the first rotating pin 14 passes through the movable member 132, and the first rotating pin 14 is rotatable relative to the movable member 132. The two ends of the first rotating pin 14 are fixedly connected to the first end 1311 and the second end 1312.

[0044] For some implementation methods, please refer to Figure 5 , Figure 7 and Figure 8 The first end 1311 has a first hole 161 and the second end 1312 has a second hole 162; the first rotating pin 14 includes a first pin body 141 and a second pin body 142, the first pin body 141 and the second pin body 142 are connected to the opposite sides of the movable part 132, the first pin body 141 extends into the first hole 161 and the second pin body 142 extends into the second hole 162.

[0045] In a specific embodiment, please refer to Figure 5 and Figure 7The first end 1311 has a first hole 161 on the side facing the second end 1312, and the second end 1312 has a second hole 162 on the side facing the first end 1311. The first pin 141 and the second pin 142 extend into the first hole 161 and the second hole 162 respectively, and the first pin 141 and the second pin 142 are movable (rotatable) in the first hole 161 and the second hole 162. Optionally, the first hole 161 and the second hole 162 can be blind holes or through holes.

[0046] In a specific embodiment, please refer to Figure 5 and Figure 8 The first pin 141 and the second pin 142 are connected to the two opposite sides of the movable part 132 along the X-axis direction 002. The first pin 141 and the second pin 142 and the movable part 132 can be an integral structure, that is, the first rotating pin 14 and the movable part 132 can be formed by injection molding or 3D printing. In other embodiments, the first rotating pin 14 and the movable part 132 can be an assembled structure, that is, the two can be connected by snap-fit, welding, screwing, bonding or other methods.

[0047] For some implementation methods, please refer to Figure 9 and Figure 10 The first rotating pin 14 includes a first pin 141 and a second pin 142. The first pin 141 is connected to the first end 1311, and the second pin 142 is connected to the second end 1312. The movable part 132 has a first hole 161 and a second hole 162 with opposite openings. The first pin 141 extends into the first hole 161, and the second pin 142 extends into the second hole 162.

[0048] In a specific embodiment, please refer to Figure 9 The first pin 141 is connected to the side of the first end 1311 facing the second end 1312, and the second pin 142 is connected to the side of the second end 1312 facing the first end 1311. The first pin 141 and the second pin 142 and the fixing member 131 can be an integral structure, that is, the first rotating pin 14 and the fixing member 131 can be formed by injection molding or 3D printing. In other embodiments, the first rotating pin 14 and the fixing member 131 can be an assembled structure, that is, the two can be connected by snap-fitting, welding, screwing, bonding, etc.

[0049] In a specific embodiment, please refer to Figure 9 and Figure 10 The movable part 132 has a first hole 161 and a second hole 162 respectively on its two opposite sides along the X-axis direction 002. The first pin 141 and the second pin 142 extend into the first hole 161 and the second hole 162 respectively, and the first pin 141 and the second pin 142 are movable (rotatable) in the first hole 161 and the second hole 162. Optionally, the first hole 161 and the second hole 162 can be blind holes or through holes.

[0050] For some implementation methods, please refer to Figures 4-6 The movable component 132 is sleeved on the outer periphery of the measuring rod 12. The universal structure 13 includes a second rotating pin 15 connecting the measuring rod 12. The two opposite ends of the second rotating pin 15 are connected to the inner ring surface of the movable component 132, and the second rotation axis B is the axis of the second rotating pin 15. Specifically, the movable component 132 can be a ring-shaped structure, and the measuring rod 12 passes through the inner ring of the movable component 132. The movable component 132 can be a circular ring, or it can also be an elliptical ring, a quadrilateral ring, etc. The measuring rod 12 is connected to the inner ring surface of the movable component 132 through the second rotating pin 15, so that the measuring rod 12 can rotate about the second rotating pin 15 as the rotation axis, and the measuring rod 12 can rotate within the movable component 132.

[0051] In a specific embodiment, please refer to Figures 4-6 Alternatively, the second rotating pin 15 can be fixedly connected to the measuring rod 12, meaning they will not move relative to each other; or the second rotating pin 15 can be movably connected to the movable part 132, meaning both ends of the second rotating pin 15 are movably connected to the inner ring surface of the movable part 132, allowing them to move relative to each other.

[0052] In a specific embodiment, please refer to Figures 4-6 The second rotating pin 15 can be a rotating shaft extending along the Y-axis direction 003. The second rotating pin 15 passes through (or does not pass through) the measuring rod 12, and the second rotating pin 15 is fixedly connected to the measuring rod 12. The inner ring surface of the movable part 132 has opposing holes, and both ends of the second rotating pin 15 extend into the holes, and the second rotating pin 15 is movable within the holes. Alternatively, the second rotating pin 15 passes through the measuring rod 12, and the second rotating pin 15 is rotatable relative to the measuring rod 12. Both ends of the second rotating pin 15 are fixedly connected to the inner ring surface of the movable part 132.

[0053] For some implementation methods, please refer to Figure 6 , Figure 8 and Figure 11 The second rotating pin 15 includes a third pin 151 and a fourth pin 152, which are connected to opposite sides of the measuring rod 12. The movable part 132 has a third hole 163 and a fourth hole 164, with the third pin 151 extending into the third hole 163 and the fourth pin 152 extending into the fourth hole 164.

[0054] In a specific embodiment, please refer to Figure 6 and Figure 8The movable part 132 has a third hole 163 and a fourth hole 164 on its inner ring surfaces along the Y-axis direction 003. The third pin 151 and the fourth pin 152 extend into the third hole 163 and the fourth hole 164 respectively, and the third pin 151 and the fourth pin 152 are movable (rotatable) in the third hole 163 and the fourth hole 164. Optionally, the third hole 163 and the fourth hole 164 can be blind holes or through holes.

[0055] In a specific embodiment, please refer to Figure 6 and Figure 11 The third pin 151 and the fourth pin 152 are connected to the two opposite sides of the measuring rod 12 along the Y-axis direction 003. The third pin 151 and the fourth pin 152 can be an integral structure with the measuring rod 12, that is, the second rotating pin 15 and the measuring rod 12 can be formed by injection molding or 3D printing. In other embodiments, the second rotating pin 15 and the measuring rod 12 can be an assembled structure, that is, the two can be connected by snap-fit, welding, screwing, bonding or other methods.

[0056] For some implementation methods, please refer to Figure 12 and Figure 13 The second rotating pin 15 includes a third pin 151 and a fourth pin 152. The third pin 151 and the fourth pin 152 are connected to the inner ring surface of the movable part 132. The measuring rod 12 has a third hole 163 and a fourth hole 164 facing away from each other. The third pin 151 extends into the third hole 163 and the fourth pin 152 extends into the fourth hole 164.

[0057] In a specific embodiment, please refer to Figure 12 The third pin 151 and the fourth pin 152 are connected to the opposing inner ring surfaces of the movable part 132 along the Y-axis direction 003. The third pin 151 and the fourth pin 152 can be an integral structure with the movable part 132, meaning the second rotating pin 15 and the movable part 132 can be formed by injection molding or 3D printing. In other embodiments, the second rotating pin 15 and the movable part 132 can be an assembled structure, meaning they can be connected by snap-fitting, welding, screwing, bonding, or other methods.

[0058] In a specific embodiment, please refer to Figure 12 and Figure 13 The measuring rod 12 has a third hole 163 and a fourth hole 164 on opposite sides along the Y-axis direction 003. A third pin 151 and a fourth pin 152 extend into the third hole 163 and the fourth hole 164 respectively, and are movable (rotatable) within these holes. Optionally, the third hole 163 and the fourth hole 164 can be blind holes or through holes.

[0059] For some implementation methods, please refer to Figure 6The probe assembly 10 also includes a reset member 17, which connects to at least one of the support rod 11 and the measuring rod 12. The reset member 17 is used to drive the measuring rod 12 to reset after rotation. Specifically, the reset member 17 is used to reset the measuring rod 12, which is located in the second position, to the first position.

[0060] In a specific embodiment, please refer to Figure 6 The reset component 17 includes a first magnet 171 and a second magnet 172. The first magnet 171 is connected to the support rod 11, and the second magnet 172 is connected to the measuring rod 12. The first magnet 171 and the second magnet 172 have opposite polarities. Specifically, the first magnet 171 is connected to the end of the support rod 11 facing the measuring rod 12, and the second magnet 172 is connected to the end of the measuring rod 12 facing the support rod 11.

[0061] In other embodiments, the reset member 17 may include a magnet and a metal block, with the magnet connected to the end of the support rod 11 facing the measuring rod 12, and the metal block connected to the end of the measuring rod 12 facing the support rod 11. It is understood that the metal block can drive the measuring rod 12 to reset under the attraction of the magnet. In other embodiments, the reset member 17 may also be a torsion spring, tension spring, or other elastic spring component.

[0062] This utility model also adds a reset component 17 between the support rod 11 and the measuring rod 12. The reset component 17 resets the measuring rod 12 after it swings, so that the measuring rod 12 can always maintain its axial position when it is not hit. The measuring rod 12 will automatically return to the center. Even if a collision occurs, there is no need to replace or adjust the thickness measuring device 100. It can be used normally after reset, saving the time of replacement and debugging.

[0063] In some embodiments, the specific process of the thickness measuring device 100 measuring the workpiece may include: before the workpiece moves below the thickness measuring device 100, the thickness measuring device 100 performs a zeroing operation; after the workpiece moves below the thickness measuring device 100, the thickness measuring device 100 performs a measurement operation.

[0064] In a specific embodiment, the thickness measuring device 100 performs a zeroing operation, which specifically includes: the driving component 20 driving the mounting plate 40 to descend so that the probe assembly 10 contacts the bottom (which can be the processing platform 300); when the probe assembly 10 is lifted, it triggers the photoelectric sensor located above, and the photoelectric sensor emits a first position signal. It should be noted that the photoelectric sensor is triggered when the probe assembly 10 is lifted, which could be because the photoelectric sensor is blocked by the probe assembly 10, and the corresponding photoelectric sensing signal is output as the first position signal.

[0065] In a specific embodiment, the thickness measuring device 100 performs a measurement operation, specifically including: the driving component 20 driving the mounting plate 40 to descend, so that the probe assembly 10 contacts the workpiece to be measured; when the probe assembly 10 is lifted, it triggers the photoelectric sensor located above, and the photoelectric sensor emits a second position signal. The absolute value of the difference between the second position signal and the first position signal is the thickness of the workpiece to be measured. The second position signal and the first position signal are the basis for the thickness of the workpiece to be measured as described above.

[0066] In a specific embodiment, if an operational error or a program setting error occurs during the zeroing or measurement operation of the thickness measuring device 100, and the photoelectric sensor does not emit an electrical signal while the drive component 20 holds the drive probe assembly 10 to press the processing platform 300 or the workpiece to be measured, the support rod 11 and the measuring rod 12 can rotate relative to each other through the universal structure 13, so that the measuring rod 12 can swing, thereby reducing the collision force on the processing platform 300; and after the impact, the measuring rod 12 can be reset by the reset component 17, so that the measuring rod 12 can always maintain its axial position when it is not hit.

[0067] In the description of the embodiments of this utility model, it should be noted that the orientation or positional relationship of the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and other indicators are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0068] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Those skilled in the art can understand that implementing all or part of the above-described embodiments and making equivalent changes in accordance with the claims of the present utility model are still within the scope of the present utility model.

Claims

1. A probe assembly (10) used in a thickness measuring device (100), characterized in that, include: Support rod (11); Measuring rod (12) is used to contact the part to be measured; A universal structure (13) connects the support rod (11) and the measuring rod (12). The measuring rod (12) is rotatably connected to the universal structure (13). The measuring rod (12) can rotate around the rotation axis, which intersects the axis of the support rod (11).

2. The probe assembly (10) according to claim 1, characterized in that, The rotation axis includes an intersecting first rotation axis (A) and a second rotation axis (B), and the measuring rod (12) is rotatable about the first rotation axis (A) and / or the second rotation axis (B).

3. The probe assembly (10) according to claim 2, characterized in that, The universal structure (13) includes a fixed member (131) and a movable member (132) that are rotatably connected. The fixed member (131) is connected to the support rod (11), and the movable member (132) is rotatably connected to the measuring rod (12). The movable member (132) drives the measuring rod (12) to rotate around the first rotation axis (A), and the measuring rod (12) can rotate around the second rotation axis (B).

4. The probe assembly (10) according to claim 3, characterized in that, The fixing member (131) includes a first end (1311) and a second end (1312) arranged at a distance from each other, and the movable member (132) is located between the first end (1311) and the second end (1312); the universal structure (13) includes a first rotating pin (14) connecting the movable member (132), the two opposite ends of the first rotating pin (14) are respectively connected to the first end (1311) and the second end (1312), and the first rotation axis (A) is the axis of the first rotating pin (14); The first rotating pin (14) includes a first pin body (141) and a second pin body (142). The universal structure (13) has a first hole (161) and a second hole (162). The first pin body (141) extends into the first hole (161), and the second pin body (142) extends into the second hole (162). Wherein, the first hole (161) is formed on the first end (1311), and the second hole (162) is formed on the second end (1312); the first pin (141) and the second pin (142) are connected to opposite sides of the movable part (132); and / or, The first pin (141) is connected to the first end (1311), and the second pin (142) is connected to the second end (1312); the first hole (161) and the second hole (162) are respectively opened on the movable part (132).

5. The probe assembly (10) according to claim 3, characterized in that, The movable part (132) is sleeved on the outer periphery of the measuring rod (12); the universal structure (13) includes a second rotating pin (15) connecting the measuring rod (12), the two opposite ends of the second rotating pin (15) are connected to the inner ring surface of the movable part (132), and the second rotation axis (B) is the axis of the second rotating pin (15); The second rotating pin (15) includes a third pin (151) and a fourth pin (152). The universal structure (13) has a third hole (163) and a fourth hole (164). The third pin (151) extends into the third hole (163), and the fourth pin (152) extends into the fourth hole (164). The third hole (163) and the fourth hole (164) are respectively opened on the movable part (132); the third pin (151) and the fourth pin (152) are connected to opposite sides of the measuring rod (12); and / or, The third hole (163) and the fourth hole (164) are opened opposite to each other on the measuring rod (12), and the third pin (151) and the fourth pin (152) are connected to the inner ring surface of the movable part (132).

6. The probe assembly (10) according to any one of claims 1-5, characterized in that, The probe assembly (10) further includes a reset member (17), which is connected to at least one of the support rod (11) and the measuring rod (12). The reset member (17) is used to drive the measuring rod (12) to reset after rotation.

7. The probe assembly (10) according to claim 6, characterized in that, The reset component (17) includes a first magnet (171) and a second magnet (172). The first magnet (171) is connected to the support rod (11), and the second magnet (172) is connected to the measuring rod (12). The first magnet (171) and the second magnet (172) have opposite polarities.

8. A thickness measuring device (100), characterized in that, The thickness measuring device (100) includes a drive (20), a sensor (30), and a probe assembly (10) as described in any one of claims 1-7. The drive (20) is used to drive the probe assembly (10) to move closer to or further away from the workpiece to be measured. The probe assembly (10) is rotatable to prevent impact on the workpiece to be measured. The sensor (30) is used to sense the support rod (11) to measure the thickness of the workpiece to be measured.

9. The thickness measuring device (100) according to claim 8, characterized in that, The driving element (20) is used to drive the probe assembly (10) to descend until the probe assembly (10) is lifted, and the sensor (30) is used to sense the probe assembly (10) and emit a first position signal; the driving element (20) is used to drive the probe assembly (10) to descend again until the probe assembly (10) is lifted, and the sensor (30) is used to sense the probe assembly (10) and emit a second position signal; the absolute value of the second position signal minus the first position signal is the thickness of the test piece.

10. A laser processing device (1000), characterized in that, It includes a laser device and a thickness measuring device (100) as described in claim 8 or 9, wherein the laser device performs processing based on the thickness of the workpiece to be measured obtained by the thickness measuring device (100).

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