Tool setting device and numerical control machining equipment

Abstract

The utility model discloses a tool setting device which is used for numerical control machining equipment and comprises a first barrel body, a second barrel body, a movable contact assembly and a fixed contact assembly, a first space is defined between the first barrel body and the second barrel body, and the movable contact assembly is installed in the first space; a second space is formed in the second barrel body, and the fixed contact assembly is arranged in the second space; the first space and the second space are communicated with each other, the movable contact assembly can move from a first position to a second position under the action of external force, and the movable contact assembly is not in contact with the fixed contact assembly at the first position. And when the movable contact assembly is at the second position, the movable contact assembly is in contact with the fixed contact assembly to realize electric connection. According to the tool setting device, the movable contact assembly and the static contact assembly are integrated on the tool setting device, and therefore the problem that numerical control machining equipment carries useless circuits to work is avoided.

Description

Technical Field

[0001] The utility model relates to the field of numerical control processing, in particular to a tool setting device and numerical control processing equipment. Background Art

[0002] The tool setter in the prior art acts as a fixed contact, and the tool head or probe acts as a moving contact. It is necessary to design a closed circuit between the tool head or probe and the tool setter, so that part of the circuit is located at the tool setter end, and part of the circuit is located at the tool head end or the probe end. The part of the circuit located at the tool head end or the probe end is not used during the process of processing products by the CNC machining equipment, and also increases the instability of the CNC machining equipment. Utility Model Content

[0003] The embodiment of the utility model provides a tool setting device, which is used to solve at least one of the above-mentioned technical problems.

[0004] The utility model provides a tool setting device for numerical control processing equipment, comprising: a first barrel, a second barrel, a moving contact assembly, and a fixed contact assembly, wherein:

[0005] A first space is defined between the first barrel body and the second barrel body, and the moving contact assembly is installed in the first space;

[0006] A second space is formed in the second barrel, and the fixed contact assembly is installed in the second space;

[0007] The first space and the second space are interconnected. Under the action of external force, the moving contact assembly can move from a first position to a second position. In the first position, the moving contact assembly is not in contact with the fixed contact assembly. In the second position, the moving contact assembly is in contact with the fixed contact assembly to achieve electrical connection.

[0008] In some embodiments, the moving contact assembly includes a moving contact structure and a first elastic structure. When the moving contact structure is not affected by external force, the first elastic structure maintains the moving contact structure in the first position. When the moving contact structure is affected by external force, the moving contact structure compresses the elastic structure and moves to the second position.

[0009] In some embodiments, the first end of the first elastic structure conflicts with the second barrel, and the second end of the first elastic structure conflicts with the moving contact structure.

[0010] In some embodiments, the fixed contact assembly includes a fixed contact structure and a buffer structure in contact with the fixed contact structure; when the moving contact structure moves to the second position, the moving contact structure contacts the buffer structure, and the buffer structure realizes electrical connection between the moving contact structure and the fixed contact structure.

[0011] In some embodiments, the buffer structure includes a buffer contact and a second elastic structure, a first end of the second elastic structure is in conflict with the fixed contact structure, and the buffer contact is installed at a second end of the second elastic structure.

[0012] In some embodiments, the elastic coefficient of the first elastic structure is smaller than the elastic coefficient of the second elastic structure.

[0013] In some embodiments, an insulating layer is provided between the fixed contact assembly and the second barrel body; the moving contact assembly is connected to the external circuit through the second barrel body, and the fixed contact assembly is connected to the external circuit through one end of the fixed contact structure away from the moving contact structure.

[0014] In some embodiments, it also includes: a base wiring nut installed at one end of the second barrel body away from the moving contact assembly, a circumferential protrusion structure is provided in the middle of the fixed contact structure, and the base wiring nut defines the fixed contact structure through the circumferential protrusion structure.

[0015] In some embodiments, the base wiring nut is provided with a through hole, and one end of the fixed contact structure away from the moving contact assembly passes through the through hole, and there is a gap between the fixed contact structure and the inner wall of the through hole.

[0016] The embodiment of the utility model provides a numerical control processing equipment, which is equipped with a probe device and a tool setting device of any embodiment of the present application.

[0017] The beneficial effect of the embodiment of the utility model is that the present application integrates both the moving contact assembly and the static contact assembly into the tool setting device, thereby avoiding the problem of CNC machining equipment carrying useless circuits to work. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 This is a schematic diagram of the internal structure of the tool setting device of the utility model;

[0020] Figure 2a This is a schematic diagram of the internal structure of the tool setting device of the utility model (the blue part is a schematic diagram of the upper barrel);

[0021] Figure 2b This is a schematic diagram of the internal structure of the tool setting device of the utility model (the blue part is a schematic diagram of the upper barrel);

[0022] Figure 2c The figure is a schematic diagram of the internal structure of the tool setting device of the utility model (the blue part is a schematic diagram of the sliding probe);

[0023] Figure 2d The figure is a schematic diagram of the internal structure of the tool setting device of the utility model (the blue part is a schematic diagram of the fixed contact point);

[0024] Figure 3a It is a schematic diagram of the structure of the probe device of the utility model;

[0025] Figure 3b It is a structural schematic diagram of the probe device of the utility model from another perspective;

[0026] Figure 4a A schematic diagram of the structure of the probe assembly of the utility model;

[0027] Figure 4b It is a structural schematic diagram of the probe assembly of the utility model from another perspective;

[0028] Figure 5 is a cross-sectional view of the probe device of the utility model;

[0029] Figure 6 It is a structural schematic diagram of the numerical control processing equipment of the utility model;

[0030] Figure 7 This is another structural schematic diagram of the numerical control processing equipment of the present utility model. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical scheme and advantages of the embodiment of the utility model clearer, the technical scheme in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. It should be noted that the embodiments in this application and the features in the embodiments can be combined with each other without conflict.

[0032] It should also be noted that, in this article, the terms "include" and "comprise" include not only those elements, but also other elements not explicitly listed, or elements inherent to such processes, methods, articles or equipment. In the absence of further restrictions, the elements defined by the sentence "include..." do not exclude the existence of other identical elements in the process, method, article or equipment that includes the elements.

[0033] like Figure 1 The figure shows a schematic diagram of the internal structure of the tool setting device of the present application. In this embodiment, it includes: a first barrel body (for example, an upper barrel 7), a second barrel body (for example, a lower barrel 8), a moving contact assembly, and a fixed contact assembly. Among them, a first space is defined between the upper barrel 7 and the lower barrel 8, and the moving contact assembly is installed in the first space; a second space is formed in the lower barrel 8, and the fixed contact assembly is installed in the second space; the first space and the second space are interconnected, and the moving contact assembly can be moved from the first position to the second position under the action of an external force. In the first position, the moving contact assembly is not in contact with the fixed contact assembly, and in the second position, the moving contact assembly is in contact with the fixed contact assembly to achieve electrical connection.

[0034] The present application integrates both the moving contact assembly and the stationary contact assembly into the tool setting device, thereby avoiding the problem of CNC machining equipment carrying useless circuits to work.

[0035] In some embodiments, the moving contact assembly includes a moving contact structure (e.g., a sliding probe 2) and a first elastic structure (e.g., a primary spring 3). When the sliding probe 2 is not acted upon by an external force, the primary spring 3 maintains the sliding probe 2 in the first position, and when the sliding probe 2 is acted upon by an external force, the sliding probe 2 compresses the primary spring 3 and moves to the second position.

[0036] like Figure 2a As shown, it is a schematic diagram of the internal structure of the tool setting device of the present application (the blue part is a schematic diagram of the upper barrel 7); Figure 2b As shown, it is a schematic diagram of the internal structure of the tool setting device of the present application (the blue part is a schematic diagram of the upper barrel 8). The lower end of the upper barrel 7 is installed in cooperation with the upper end of the lower barrel 8, the lower end of the primary spring 3 is in conflict with the upper end of the lower barrel 8, and the upper end of the primary spring 3 is in conflict with the sliding probe 2. Among them, a circumferential boss is provided on the main body of the sliding probe 2, and the primary spring 3 is sleeved on the main body of the sliding probe 2 located below the circumferential boss, and conflicts with the lower surface of the circumferential boss on the main body of the sliding probe 2. The main body of the sliding probe 2 located above the circumferential boss passes through the upper end opening of the upper barrel 7, and the upper end opening of the upper barrel 7 is smaller than the size of the circumferential boss, so that the upper barrel inner wall boss in the upper barrel 7 cooperates with the circumferential boss. Under the action of the primary spring 3, the upper surface of the circumferential boss conflicts with the barrel inner wall boss.

[0037] like Figure 2c As shown, it is a schematic diagram of the internal structure of the tool setting device of the present application (the blue part is a schematic diagram of the sliding probe 2). A tool receiving platform 1 is also installed on the main part of the sliding probe 2 located above the circumferential boss, and the tool or probe device of the CNC machining equipment is used to achieve tool setting with the tool receiving platform 1. The tool receiving platform 1 can be connected to the main part of the sliding probe 2 located above the circumferential boss by a threaded connection, and other connection methods can also be used, which is not limited by the present application.

[0038] The lower end of the upper barrel 7 and the upper end of the lower barrel 8 can be installed in a manner of threaded connection, welding, or riveting, etc., which is not limited in this application. Among them, the upper barrel 7, the lower barrel 8, the sliding probe 2, and the primary spring 3 are all made of conductive materials.

[0039] like Figure 2d , which is a schematic diagram of the internal structure of the tool setting device of the present application (the blue part is a schematic diagram of the fixed contact). In some embodiments, the fixed contact assembly includes a fixed contact structure (e.g., the fixed contact 6) and a buffer structure in contact with the fixed contact structure. When the moving contact structure (e.g., the sliding probe 2) moves to the second position, the moving contact structure contacts the buffer structure, and the buffer structure realizes the electrical connection between the moving contact structure and the fixed contact structure.

[0040] The buffer structure includes a buffer contact 4 and a second elastic structure (e.g., a secondary spring 5). The first end of the secondary spring 5 abuts against the fixed contact 6, and the buffer contact 4 is mounted on the second end of the secondary spring 5. The elastic coefficient of the primary spring 3 is smaller than the elastic coefficient of the secondary spring 5.

[0041] An insulating layer is arranged between the fixed contact assembly and the second barrel body (lower barrel 8), and the insulating layer includes an insulating ring 9; the moving contact assembly is connected to the external circuit through the second barrel body (lower barrel 8), and the fixed contact assembly is connected to the external circuit through one end of the fixed contact structure away from the moving contact structure.

[0042] like Figure 1 As shown, the tool setting device of the present application also includes a base wiring nut 11, which is installed at one end of the lower barrel away from the moving contact assembly. A circumferential protrusion structure is provided in the middle of the fixed contact 6. The base wiring nut 11 limits the fixed contact 6 through the circumferential protrusion structure to complete the installation of the fixed contact in the second space. A through hole is provided at the upper end of the lower barrel 8 for the main body of the sliding probe 2 to pass through. The diameter of the through hole is smaller than the diameter of the second space, the diameter of the secondary spring 5 is larger than the diameter of the through hole, or the diameter of the buffer contact 4 is larger than the diameter of the through hole, so that a lower barrel inner wall boss is formed inside the lower barrel 8, which is used to confine the buffer structure (buffer contact 4 and secondary spring 5) in the second space.

[0043] The secondary spring 5 is sleeved on the body of the fixed contact 6, the upper end of the secondary spring 5 is in contact with or connected to the buffer contact 4, and the lower end of the secondary spring 5 is in contact with the upper surface of the circumferential protrusion structure of the fixed contact 6. Further, an insulating sheet 10 (for example, an annular insulating gasket) is provided between the base wire nut 11 and the lower surface of the circumferential protrusion structure of the fixed contact 6.

[0044] The base wiring nut 11 is provided with a through hole, and one end of the fixed contact 6 away from the moving contact assembly passes through the through hole. There is a gap between the fixed contact 6 and the inner wall of the through hole, ensuring insulation between the fixed contact 6 and the base wiring nut 11.

[0045] Wiring holes are provided at the lower ends of the base wiring nut 11 and the fixed contact 6, which are used to realize the electrical connection between the moving contact assembly and the fixed contact assembly in the tool setting device and the external circuit. For example, when the tool receiving platform 1 is not subjected to force, the moving contact assembly is in the first position and remains separated from the fixed contact assembly. The sliding probe 2 in the moving contact assembly is conductively connected to the lower barrel 8 through the primary spring 3, and the base wiring nut 11 is conductively connected to the lower end of the lower barrel 8, and then connected to the external circuit through a wire; the fixed contact 6 is directly connected to the external circuit through a wire; when the tool receiving platform 1 is subjected to force, the sliding probe 2 moves downward and contacts the buffer contact 4, and the buffer contact is electrically connected to the fixed contact 6 through the secondary spring 5, thereby realizing a closed-loop connection between the moving contact assembly and the fixed contact assembly and the external circuit.

[0046] like Figure 1 As shown, in the present application, the upper barrel 7, the lower barrel 8 and the base wiring nut 11 constitute the overall housing of the tool setting device. The fixed contact 6, the buffer contact 4, the insulating ring 9 and the insulating sheet 10 are normally stationary under the tension of the secondary spring 5 and the restraint of the overall housing.

[0047] The fixed contact 6 and the buffer contact 4 are subjected to the tension of the secondary spring 5 in any working state, so the fixed contact 6 and the buffer contact 4 are electrically connected in any working state. The fixed contact 6, the buffer contact 4 and the secondary spring 5 are fully surrounded and insulated by the insulating ring 9 and the insulating sheet 10 in any working state, so the fixed contact 6, the buffer contact 4, the secondary spring 5 and the overall housing are electrically disconnected in any working state.

[0048] The knife connecting platform 1 and the sliding probe 2 are stably connected and are normally stationary under the restraint of the primary spring 3 and the overall shell. The knife connecting platform 1 and the overall shell are not insulated, so the knife connecting platform 1 and the overall shell are electrically connected. When the knife connecting platform 1 is squeezed by the external vertical downward force, the knife connecting platform 1 and the sliding probe 2 together compress the primary spring 3 to cause vertical downward displacement.

[0049] When the lower end surface of the sliding probe 2 touches the moving contact 4, the knife receiving platform 1 is electrically connected to the fixed contact 6. At this time, the circuits such as the wires connected to the wiring holes 12 outside the insulating layer and the wiring holes 13 inside the insulating layer are also electrically connected, and a feedback signal will be generated.

[0050] The secondary spring 5 has the following functions:

[0051] Firstly, it has a buffering effect on the downwardly moving tool receiving platform 1 and the sliding probe 2, so as to avoid rigid contact which may damage the tool setting device components and the tool and affect the tool setting accuracy.

[0052] Secondly, after the sliding probe 2 contacts the moving contact 4, there is still a distance that can be moved downward, that is, between the upper end surface of the fixed contact 6 and the bottom surface of the moving contact 4. If the sliding probe 2 does not retreat after contacting the moving contact 4 due to some accident and continues to move downward, the secondary spring 5 can always support the moving contact 4 to keep it in contact with the lower end surface of the sliding probe 2, thereby ensuring the real feedback on the fact that the tool has contacted the tool receiving platform 1 in the mechanical mechanism.

[0053] A certain distance is provided between the upper end surface of the fixed contact 6 and the bottom surface of the movable contact 4. The advantage of this is that a buffer space is provided to avoid rigid contact.

[0054] When the external force on the tool receiving platform 1 disappears, the primary spring 3 and the secondary spring 5 resume their deformation, the movable parts inside the entire tool setting device return to normal, the circuits such as the wires connected to the wiring holes 12 and the wiring holes 13 are electrically disconnected, and the feedback signal disappears.

[0055] In some embodiments, the present application also provides a CNC machining device, which is equipped with a probe device and the tool setting device described in any of the aforementioned embodiments.

[0056] In the prior art, before the operator operates the CNC processing equipment (for example, 3D engraving machine) to process the parts, it is necessary to detect the material to be processed, so as to determine the boundary and other information of the material to be processed, so as to facilitate automatic processing according to the processing target. In the process of realizing the present application, the inventor found that when the operator detects the material to be processed through the probe, it is necessary to manually control the movement of the probe in the three-dimensional space to detect the target point on the material to be processed. For example, for a smaller groove on the processing material, the groove needs to be enlarged or deepened. The operator needs to manually adjust the movement of the probe in the front and back and left and right directions, and then tentatively adjust the height of the probe to align the probe with the groove. The whole process is time-consuming and laborious, and requires a high level of operator proficiency. The present application provides a probe device to solve the above problems to a certain extent.

[0057] like Figure 3a , Figure 3b and Figure 5 As shown, the embodiment of the utility model provides a probe device for numerical control processing equipment, the probe device comprises: a housing 10', a light source assembly 20, a probe assembly 30 and a circuit board 40 assembled in the housing 10', wherein:

[0058] The circuit board 40 is connected to the light source assembly 20 and the probe assembly 30;

[0059] The light source assembly 20 is disposed at one end of the probe assembly 30 , and the light source assembly 20 is configured to indicate the probe point of the probe assembly 30 ;

[0060] The probe assembly 30 is provided with an optical channel, and the optical channel is used for the light emitted by the light source assembly 20 to pass through so as to indicate the probe point of the probe assembly 30 .

[0061] Exemplarily, the light source assembly 20 is disposed at the upper end of the probe assembly 30, and the light emitted by the light source assembly 20 can be projected onto the surface of the material to be processed through the light channel disposed in the probe assembly 30 to indicate the probe point of the probe assembly 30 on the material to be processed.

[0062] The embodiment of the present application indicates the detection point of the probe assembly 30 through the light source assembly 20 in the probe device, which facilitates the operator to quickly locate the landing point of the probe assembly 30 on the object to be processed, simplifies the operation steps, and improves the detection efficiency.

[0063] In some embodiments, the light source assembly 20 includes a light source 21 and a light source mounting seat 22 for mounting the light source 21, the light source 21 is at least partially embedded in the light source mounting seat 22, and is electrically connected to the circuit board 40. Exemplarily, the light source 21 may be an infrared light source, and two electrodes are provided on the light source 21, the two electrodes are used to connect to the circuit board 40, and the power on and off control of the light source 21 is realized through the circuit board 40, thereby realizing the switch of the light source 21. Exemplarily, a controller is provided on the circuit board 40 for controlling the switch of the light source 21.

[0064] In some embodiments, the light source assembly 20 further includes a convex lens 23 and a lens mounting seat 24. The convex lens 23 is disposed between the light source 21 and the probe assembly 30 through the lens mounting seat 24 to guide the light of the light source 21 to the light channel. Exemplarily, the convex lens 23 is embedded in the lens mounting seat 24. The convex lens is circular. The lens mounting seat 24 is correspondingly a circular mounting seat. The lens mounting seat 24 is provided with a through hole to allow the light of the convex lens to pass through. The setting of the convex lens 23 in the light source assembly 20 can realize the convergence of the light emitted by the light source 21, so that the light can be better directed to the probe assembly 30, and the probe point of the probe assembly 30 on the material to be processed can be indicated more stably and clearly.

[0065] In some embodiments, the light source assembly 20 further includes a focus stopper 25, which is disposed between the light source 21 and the convex lens 23. Exemplarily, the focus stopper 25 is cylindrical, for example, the focus stopper 25 is a lens focal length cylinder. The length of the focus stopper 25 can be set according to the focal length of the convex lens, so that the light emitted by the light source 21 can be accurately projected to the light channel in the probe assembly 30 after passing through the convex lens 23.

[0066] Exemplarily, the shape of the light source mounting seat 24 matches the light source 21. For example, the light source 21 is at least partially cylindrical, and the outer contour of the corresponding light source mounting seat 24 is cylindrical, and a through hole is provided inside, and the through hole is used to install the light source 21. Further, in order to facilitate the installation of the electrodes on the light source 21, a notch is provided on the side wall of the light source mounting seat 24, and the notch is used for the two electrodes of the light source 21 to be connected to the outside (for example, to be connected to the circuit board 40 through a wire).

[0067] In some embodiments, the lower half of the light source 21 is embedded in the focus limiting component 25, and the upper half of the light source 21 is embedded in the light source mounting seat 24. The focus limiting component 25 is tubular, and the axis of the focus limiting component 25 is colinear with the axis of the light source mounting seat 24.

[0068] Exemplarily, the light source 21, the focus stop component 25, the convex lens 23 and the convex lens mounting seat 24 are assembled together from top to bottom in sequence, and are assembled with each other by means of embedded connection, threaded connection or bonding, etc., which is not limited in this application. The axes of the light source 21, the focus stop component 25, the convex lens 23 and the convex lens mounting seat 24 are collinear.

[0069] like Figure 4a , Figure 4b and Figure 5 As shown, in the probe device provided by the present application, the probe assembly 30 includes a static contact assembly 31 and a movable contact assembly 32 , and the static contact assembly 31 and the movable contact assembly 32 are connected to a circuit board 40 .

[0070] In the present application, the static contact assembly 31 and the moving contact assembly 32 are connected to the circuit board 40 to detect the detection action of the probe assembly. For example, when the moving contact assembly 32 contacts the material to be processed, it is displaced, so that the moving contact assembly 32 contacts the static contact assembly 31, thereby forming a closed loop, and a detection signal is generated in the circuit board 40, indicating that the detection is in place.

[0071] In some embodiments, the stationary contact assembly 31 includes a stationary contact portion 311 and a stationary contact insulating portion 312, the stationary contact portion 311 is embedded in the stationary contact insulating portion 312, and the stationary contact portion 311 is connected to the circuit board 40. Exemplarily, the centers of the stationary contact assembly 31 and the movable contact assembly 32 are both provided with through holes to form an optical channel. Figure 4b As shown, in the embodiment of the present application, the stationary contact assembly 31 further includes a first probe electrode 3111 , wherein one end of the first probe electrode 3111 contacts the stationary contact portion 311 , and the other end of the first probe electrode 3111 is connected to the circuit board 40 .

[0072] In some embodiments, the moving contact assembly 32 includes a probe 321, a probe mounting seat 322 and a probe reset spring 323, a probe clamping portion 3211 is provided on the main body of the probe 321, the probe mounting seat 322 is provided with a through hole for assembling the probe 321, and a probe limiting portion matching the probe clamping portion 3211 is provided in the through hole (for example, the probe limiting portion can be a boss provided in the through hole, or it can be implemented as a gradually decreasing diameter of the lower end of the probe mounting seat to achieve clamping of the probe), the first side surface of the probe clamping portion 3211 cooperates with the probe limiting portion, the second side surface of the probe clamping portion 3211 cooperates with the probe reset spring 323, and the first side surface and the second side surface are opposite. When the probe 321 is subjected to an external force within a preset range, the probe reset spring 323 will be triggered to deform. Exemplarily, the preset range can be 0.1N-0.2N. Since the probe reset spring 323 only needs the above small external force to trigger deformation, when the tip of the probe 321 touches the workpiece to be detected, even if the material is relatively soft, the contact surface will hardly produce deformation that affects the detection accuracy. Therefore, the workpiece material does not have to be limited to relatively hard materials such as metal, plastic, wood, etc.

[0073] Exemplarily, the probe clamping portion 3211 is disposed near the middle of the probe 321 . The probe clamping portion 3211 may be an integral component surrounding the probe 321 circumferentially, or may be a plurality of subcomponents spaced apart around the probe 321 circumferentially, which is not limited in the present application.

[0074] The movable contact assembly 32 further includes a second probe electrode 3112 , wherein one end of the second probe electrode 3112 contacts the probe 321 , and the other end of the second probe electrode 3112 is connected to the circuit board 40 .

[0075] In some embodiments, a general assembly tube 50 for assembling the light source assembly 20 and the probe assembly 30 is also included. The general assembly tube 50 is provided with a general assembly through hole along the light channel direction, and the probe mounting seat 322 is at least partially embedded in the general assembly tube 50 .

[0076] In this embodiment, the light source assembly 20 and the probe assembly 30 are coaxially assembled through the general assembly tube 50, thereby ensuring the reliability of the assembly and avoiding the problem that the light cannot pass smoothly due to the mutual misalignment between the components.

[0077] In some embodiments, the static contact insulating part 312 is provided with an insulating through hole for installing the static contact part 311 and the probe 321, and an isolation part is provided in the insulating through hole. The static contact part 311 abuts against one side of the isolation part, and the probe reset spring 323 abuts against the other side of the isolation part. A contact through hole is formed on the isolation part for the probe 321 to pass through and contact the static contact part 311.

[0078] In this embodiment, an isolation portion is provided on the static contact insulating portion 312 to achieve insulation isolation and matching installation of the static contact portion 311 and the probe 321. When the probe 321 contacts an object, the spring is compressed, so that the upper end of the probe 321 contacts the static contact portion 311 located above through the contact through hole formed on the isolation portion, thereby forming a closed loop and generating a signal in the circuit board.

[0079] In some embodiments, the probe 321 includes a probe through hole arranged along the extension direction of the optical channel, the static contact portion 311 includes a static contact through hole arranged along the extension direction of the optical channel, and the optical channel includes the probe through hole and the static contact through hole.

[0080] In some embodiments, the probe device further comprises a clamping portion 60, for example, the clamping portion 60 is a clamping handle for mounting the probe device on a numerical control processing device. In some embodiments, the clamping portion 60 is connected to the housing 10' via a threaded connection.

[0081] In some embodiments, the probe device further includes a power supply disposed in the housing 10', which is used to power at least the circuit board 40. The housing 10' encloses the light source assembly 20, the probe assembly 30, the circuit board 40 and the power supply in a space. To charge the power supply, a wireless charging circuit is also disposed on the circuit board 40.

[0082] like Figure 6 and 5 As shown, an embodiment of the utility model provides a CNC machining device. For example, the CNC machining device is a 3D engraving machine. The CNC machining device is configured with a probe device according to any embodiment of the present application.

[0083] In some embodiments, the probe 321 is in real-time contact and electrically connected with the touch feedback signal conducting metal sheet (3112-second probe electrode); the static contact portion 311 is in real-time contact and electrically connected with the touch feedback signal conducting metal sheet (3111-first probe electrode); the probe 321 and the static contact portion 311 are electrically insulated under normal conditions; the top of the probe 321 and the bottom of the static contact portion 311 maintain a certain insulation distance under the action of spring tension; the probe 321 can move upward in the vertical direction under the action of an external force from the bottom that can overcome the spring tension.

[0084] As the probe moves upward, the top of the probe 321 is electrically connected to the bottom of the static contact portion 311 at the moment of contact, and the feedback signal is transmitted in the external circuit connected to the first probe electrode 3111 and the second probe electrode 3112 of the touch feedback signal conductive metal sheet. When the external force at the bottom of the probe 321 is removed, the top of the probe 321 is separated and electrically insulated from the bottom of the static contact portion 311 under the tension of the probe reset spring 323, the circuit loop for transmitting the touch feedback signal is cut off, and the signal transmission stops.

[0085] The external force that causes the touch feedback signal is downward pressure. In addition, the spring elastic coefficient of the tool setting device is larger than that of the probe device. When the two move towards each other and touch each other, the probe will be squeezed first to trigger the signal transmission. If the movement continues, the spring of the lower tool setting device will be squeezed because the probe has reached the limit position, thus triggering the signal transmission.

[0086] Because the transmission circuit of the touch trigger signal is an independent structure inside the probe and has nothing to do with external objects, the triggering and transmission of the signal does not need to pass through the workpiece material being detected, so the workpiece material does not have to be limited to a conductive metal material.

[0087] The following is an introduction to the logic of the probe device and the tool setting device in the CNC machining equipment of this application to automatically calculate the height of the upper surface of the workpiece:

[0088] 1. The CNC machining equipment spindle clamping probe device is moved as a whole to the top of the tool setter, so that the probe tip is aligned with the center of the top platform of the tool setter and then slowly moves down.

[0089] 2. As the ends of the two contact, the probe is squeezed and contracted, triggering the contact signal first, but the parameters corresponding to this signal do not participate in the logical calculation of this function. Then the tool setting device will trigger the contact signal, and the parameters corresponding to this signal can calculate the Z-axis coordinate of the tip of the probe in the machine tool coordinate system when the touch signal in itself has been triggered. From this moment on, no matter how the spindle moves with the probe in the coordinate system, this coordinate value can be accurately calculated and becomes a known quantity.

[0090] 3. Next, the spindle carries the probe as a whole to the top of any point on the upper surface of the workpiece that you want to detect, and then slowly moves down until the probe triggers a touch signal. At this time, the Z-axis coordinate of the probe tip corresponding to this signal is the Z-axis coordinate of the detected point. This coordinate can also be used to calculate the height from the machine tool table.

[0091] 4. The above process is the logical principle for realizing the "upper probe + lower tool setting device combination" method for measuring the upper surface of the workpiece blank and any other application scenario that requires measuring the Z-axis coordinate of a vertically detectable point of an object.

[0092] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A tool setting device for CNC machining equipment, characterized in that: include: The first barrel body, the second barrel body, the moving contact assembly, and the fixed contact assembly, wherein: A first space is defined between the first barrel body and the second barrel body, and the moving contact assembly is installed in the first space; A second space is formed in the second barrel, and the fixed contact assembly is installed in the second space; The first space and the second space are interconnected. Under the action of external force, the moving contact assembly can move from a first position to a second position. In the first position, the moving contact assembly is not in contact with the fixed contact assembly. In the second position, the moving contact assembly is in contact with the fixed contact assembly to achieve electrical connection.

2. The tool setting device according to claim 1, characterized in that: The moving contact assembly includes a moving contact structure and a first elastic structure. When the moving contact structure is not acted upon by an external force, the first elastic structure maintains the moving contact structure in the first position. When the moving contact structure is acted upon by an external force, the moving contact structure compresses the elastic structure and moves to the second position.

3. The tool setting device according to claim 2, characterized in that: The first end of the first elastic structure conflicts with the second barrel, and the second end of the first elastic structure conflicts with the moving contact structure.

4. The tool setting device according to claim 2, characterized in that: The fixed contact assembly includes a fixed contact structure and a buffer structure in contact with the fixed contact structure; when the movable contact structure moves to the second position, the movable contact structure contacts the buffer structure, and the buffer structure realizes electrical connection between the movable contact structure and the fixed contact structure.

5. The tool setting device according to claim 4, characterized in that: The buffer structure includes a buffer contact and a second elastic structure, a first end of the second elastic structure is in conflict with the fixed contact structure, and the buffer contact is installed at a second end of the second elastic structure.

6. The tool setting device according to claim 5, characterized in that: The elastic coefficient of the first elastic structure is smaller than the elastic coefficient of the second elastic structure.

7. The tool setting device according to claim 4, characterized in that: An insulating layer is provided between the fixed contact assembly and the second barrel body; the movable contact assembly is connected to an external circuit through the second barrel body, and the fixed contact assembly is connected to an external circuit through one end of the fixed contact structure away from the movable contact structure.

8. The tool setting device according to claim 7, characterized in that: Also includes: The base wiring nut is installed at one end of the second barrel away from the moving contact assembly. A circumferential protrusion structure is provided in the middle of the fixed contact structure, and the base wiring nut defines the fixed contact structure through the circumferential protrusion structure.

9. The tool setting device according to claim 8, characterized in that: The base wiring nut is provided with a through hole, and one end of the fixed contact structure away from the moving contact assembly passes through the through hole, and there is a gap between the fixed contact structure and the inner wall of the through hole.

10. A CNC machining equipment, characterized in that: A probe device and a tool setting device according to any one of claims 1 to 9 are provided.

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