Measuring head for online cutter detection

Abstract

The utility model relates to the technical field of numerical control machine tools, in particular to a measuring head for online cutter detection, which comprises a detection structure and is used for detecting the position of a cutter in the machining process of a numerical control machine tool. The upper cover is mounted at the top of the adapter and is used for pressing and mounting the shell on the adapter, and the upper cover is fixed at the top of the adapter through bolts; the execution assembly comprises a unit upper seat mounted in the shell and a pressing ring mounted at the upper end in the shell; when the tool setting block is in contact in the tool detection process, the tool setting block is extruded to be matched with the switching handle to drive the probe seat, so that the positioning pin on the probe seat is separated from the positioning ball, the circuit state is changed, a signal is transmitted to the elastic contact through the wire, the elastic contact is in contact with the contact, and the circuit assembly receives the signal through the contact. And the signal is transmitted out through the indicating lamp.

Description

Technical Field

[0001] The utility model relates to the technical field of numerically controlled machine tools, in particular to a probe for online tool detection. Background Art

[0002] When measuring tools, CNC machine tool online detection products sometimes require the measurement probe to be brought out to the measurement position. After the measurement is completed, the measurement probe is removed and subsequent processing is carried out. This not only satisfies the measurement requirements but also avoids interference of the measurement probe with the tool processing path during the processing. The tool detection probe usually requires a square tool setting block with the XZ direction of the tool setting block precisely parallel to the machine tool's operating axis.

[0003] Publication number CN216955872U discloses a new ultrasonic straight probe for forging inspection. This technology discloses "a new ultrasonic straight probe for forging inspection, comprising a housing, a probe wire, and a crystal, wherein the probe wire is inserted into the housing, the crystal is located within the housing, and further comprising a contact block, which is detachably connected to the housing, one side of the contact block being in close contact with the surface of the crystal, and a workpiece contact surface being provided on the contact block, the workpiece contact surface being located outside the housing." This technology has the following technical effects: "the provision of the contact block increases the wear resistance of the probe as a whole, the contact block is easy to replace, and the same set of probe equipment can correspond to contact blocks of various materials and specifications, thereby increasing versatility and practicality."

[0004] The main function of the tool setting block is to provide a stable and precise reference point so that the tool detection probe can accurately measure the position and status of the tool. If the parallelism between the square tool setting block in the XZ direction and the machine tool's operating axis is not accurate, it will cause errors in the tool position measurement. This error may come from improper adjustment during the installation process or due to the accuracy limitations of the machine tool itself. Utility Model Content

[0005] In response to the deficiencies in the prior art, the utility model provides a probe for online tool detection, which has the characteristic that when the tool setting block is contacted during tool detection, the tool setting block is squeezed and the adapter handle is used to drive the probe holder, so that the positioning pin on the probe holder is separated from the positioning ball, changing the circuit state, thereby transmitting the signal to the elastic contact through the wire. The elastic contact contacts the contact, the circuit assembly receives the signal through the contact, and transmits the signal through the indicator light.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a probe for online tool detection, including a detection structure and used for detecting the tool position during the processing of a CNC machine tool, the detection structure including:

[0007] The main assembly includes a shell mounted on the upper end of the adapter, an upper cover mounted on the top of the adapter and used to press the shell onto the adapter, and the upper cover is fixed to the top of the adapter by bolts;

[0008] The actuator assembly includes a unit upper seat installed inside the shell, a pressure ring installed at the upper end of the shell, and the unit upper seat is pressed and installed in the shell by the pressure ring, a probe seat installed in the unit upper seat, an adapter handle installed on the probe seat, a tool block installed on the adapter handle, three locating pins installed in equal parts in the circumferential direction of the inner wall of the unit upper seat, three groups of locating balls installed in equal parts in the circumferential direction of the inner wall of the locating pins, and an elastic contact installed at the lower end of the shell, the three locating pins and the three groups of locating balls are connected in series through wires and connected to the elastic contact.

[0009] Preferably, the actuator further comprises a spring mounted at the lower end of the housing, and the spring is located at the bottom of the stylus seat.

[0010] Preferably, the detection structure further includes a circuit assembly installed inside the adapter, contacts welded at the lower end of the circuit assembly, and an indicator light welded at the upper end of the circuit assembly.

[0011] Preferably, the main body assembly further comprises a sealing cover mounted on the upper end of the shell and fixed by the upper cover, and a sealing ring mounted on the lower end of the shell and pressed and fixed by the adapter.

[0012] Preferably, the main body assembly further includes a corresponding plane provided on the shell and a top screw installed on the adapter.

[0013] Preferably, the adapter handle includes a connecting seat fixed to the upper end of the probe seat, a guide frame slidably installed inside the connecting seat, pins slidably installed at both ends of the guide frame through inclined grooves, a bolt rod threadedly installed inside the connecting seat, and the upper end of the bolt rod is rotatably connected to the guide frame, and a cavity is opened on the outer wall of the connecting seat.

[0014] Beneficial effects

[0015] The utility model provides a probe for online tool detection. Compared with the existing technology, it has the following advantages:

[0016] (1) When the tool setting block is touched during the tool detection process, the tool setting block is squeezed and the adapter handle is used to drive the probe holder, so that the positioning pin on the probe holder is separated from the positioning ball, changing the circuit state, thereby transmitting the signal to the elastic contact through the wire. The elastic contact contacts the contact, and the circuit assembly receives the signal through the contact and transmits the signal through the indicator light.

[0017] (2) By installing two top screws on the adapter and pressing them against the corresponding planes of the shell, adjusting the tightness of the two top screws can cause the shell to rotate along the central axis, thereby achieving the purpose of micro-adjustment.

[0018] (3) By rotating the bolt rod and cooperating with the guide frame, the pin is driven to retract inward, thereby releasing the fixation of the tool block, so that the tool block can be removed and replaced from the adapter handle. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the planar side view structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the partial front view structure of the utility model;

[0021] Figure 3 This is a structural diagram of the distribution positions of the positioning pins and positioning balls in the present invention;

[0022] Figure 4 It is a partial cross-sectional structural diagram of the transfer handle in the present invention.

[0023] In the figure: 1. Detection structure; 11. Main assembly; 111. Adapter seat; 112. Shell; 113. Upper cover; 114. Bolt; 115. Sealing cover; 116. Sealing ring; 117. Corresponding plane; 118. Top screw; 12. Actuator assembly; 121. Unit upper seat; 122. Pressing ring; 123. Probe seat; 124. Locating pin; 125. Locating ball; 126. Wire; 127. Spring; 128. Elastic contact; 13. Contact; 14. Circuit assembly; 15. Indicator light; 2. Adapter handle; 21. Connecting seat; 22. Guide frame; 23. Pin; 24. Bolt rod; 25. Cavity; 3. Tool setting block. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] See also Figure 1-4 The present invention provides a probe technology solution for online tool detection: a probe for online tool detection, including a detection structure 1 and used for detecting the tool position during the processing of a CNC machine tool, the detection structure 1 including:

[0026] The main assembly 11 includes a housing 112 mounted on the upper end of the adapter 111, an upper cover 113 mounted on the top of the adapter 111 and used to press the housing 112 onto the adapter 111, and the upper cover 113 is fixed to the top of the adapter 111 by bolts 114;

[0027] The actuator 12 includes a unit upper seat 121 installed inside the shell 112, a pressure ring 122 installed at the upper end of the shell 112, and the unit upper seat 121 is pressed and installed in the shell 112 by the pressure ring 122, a probe seat 123 installed in the unit upper seat 121, an adapter handle 2 installed on the probe seat 123, a tool block 3 installed on the adapter handle 2, three positioning pins 124 installed in equal parts in the circumferential direction of the inner wall of the unit upper seat 121, three groups of positioning balls 125 installed in equal parts in the circumferential direction of the inner wall of the positioning pins 124, and an elastic contact 128 installed at the lower end of the shell 112. The three positioning pins 124 and the three groups of positioning balls 125 are connected in series via wires 126 and connected to the elastic contact 128.

[0028] In this embodiment, when the tool setting block 3 is contacted during the tool detection process, the tool setting block 3 is squeezed to cooperate with the adapter handle 2 to drive the probe holder 123, so that the positioning pin 124 on the probe holder 123 is separated from the positioning ball 125, changing the circuit state, thereby transmitting the signal to the elastic contact 128 through the wire 126 to obtain the signal state.

[0029] Specifically, the actuator 12 further includes a spring 127 installed at the lower end of the housing 112 , and the spring 127 is located at the bottom of the stylus seat 123 .

[0030] In this embodiment, the probe holder 123 can be pressed into a normally closed switch with a positioning function by a spring 127 , which is composed of three positioning pins 124 and three groups of positioning balls 125 .

[0031] Specifically, the detection structure 1 further includes a circuit assembly 14 installed inside the adapter 111 , a contact 13 welded at the lower end of the circuit assembly 14 , and an indicator light 15 welded at the upper end of the circuit assembly 14 .

[0032] In this embodiment, the elastic contact 128 contacts the contact 13 , so that after the elastic contact 128 contacts, the circuit assembly 14 receives a signal through the contact 13 and transmits the signal through the indicator light 15 .

[0033] Specifically, the main assembly 11 further includes a sealing cover 115 installed at the upper end of the shell 112 and fixed by the upper cover 113 , and a sealing ring 116 installed at the lower end of the shell 112 and pressed and fixed by the adapter 111 .

[0034] In this embodiment, the housing 112 can be sealed by the sealing cover 115 and the sealing ring 116 to reduce the entry of dust.

[0035] Specifically, the main assembly 11 further includes a corresponding plane 117 formed on the shell 112 and a top screw 118 mounted on the adapter 111 .

[0036] In this embodiment, two top screws 118 installed on the adapter 111 are pressed against the corresponding plane 117 of the shell 112, so that adjusting the tightness of the two top screws 118 can cause the shell 112 to rotate along the central axis, thereby achieving the purpose of micro-adjustment.

[0037] Specifically, the adapter handle 2 includes a connecting seat 21 fixed to the upper end of the probe seat 123, a guide frame 22 slidably installed inside the connecting seat 21, pins 23 slidably installed at both ends of the guide frame 22 through oblique grooves, a bolt rod 24 threadedly installed inside the connecting seat 21, and the upper end of the bolt rod 24 is rotatably connected to the guide frame 22, and a cavity 25 is opened on the outer wall of the connecting seat 21.

[0038] In this embodiment, the bolt rod 24 is rotated in conjunction with the guide frame 22 to drive the latch pin 23 to retract inward, thereby releasing the fixation of the tool setting block 3, so that the tool setting block 3 can be removed and replaced from the adapter handle 2.

[0039] The working principle and usage process of the present invention are as follows: First, when the tool setting block 3 is contacted during the tool detection process, the tool setting block 3 is squeezed and the adapter handle 2 is used to drive the probe holder 123, so that the positioning pin 124 on the probe holder 123 is separated from the positioning ball 125, changing the circuit state, thereby transmitting the signal to the elastic contact 128 through the wire 126, and the elastic contact 128 contacts the contact 13. The circuit assembly 14 receives the signal through the contact 13 and transmits the signal through the indicator light 15.

[0040] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "includes," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0041] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A probe for online tool detection, characterized by: The invention comprises a detection structure (1) and is used for detecting the position of a tool during machining of a numerical control machine tool. The detection structure (1) comprises: The main body assembly (11) includes a housing (112) mounted on the upper end of the adapter (111), an upper cover (113) mounted on the top of the adapter (111) and used for pressing the housing (112) onto the adapter (111), and the upper cover (113) is fixed to the top of the adapter (111) by bolts (114); The actuator assembly (12) comprises a unit upper seat (121) installed inside a housing (112), a pressure ring (122) installed at the upper end of the housing (112), and the unit upper seat (121) is pressed and installed in the housing (112) by the pressure ring (122), a probe seat (123) installed in the unit upper seat (121), a transfer handle (2) installed on the probe seat (123), a tool setting block (3) installed on the transfer handle (2), three positioning pins (124) installed in equal parts in the circumferential direction of the inner wall of the unit upper seat (121), three groups of positioning balls (125) installed in equal parts in the circumferential direction of the inner wall of the positioning pins (124), and an elastic contact (128) installed at the lower end of the housing (112), and the three positioning pins (124) and the three groups of positioning balls (125) are connected in series via a wire (126) and connected to the elastic contact (128).

2. The probe for online tool detection according to claim 1, characterized in that: The actuator assembly (12) further comprises a spring (127) mounted at the lower end of the housing (112), and the spring (127) is located at the bottom of the stylus seat (123).

3. The probe for online tool detection according to claim 1, characterized in that: The detection structure (1) further comprises a circuit assembly (14) mounted inside the adapter (111), a contact (13) welded at the lower end of the circuit assembly (14), and an indicator light (15) welded at the upper end of the circuit assembly (14).

4. The probe for online tool detection according to claim 1, characterized in that: The main body assembly (11) further includes a sealing cover (115) mounted on the upper end of the housing (112) and fixed by the upper cover (113), and a sealing ring (116) mounted on the lower end of the housing (112) and pressed and fixed by the adapter (111).

5. The probe for online tool detection according to claim 4, characterized in that: The main body component (11) further includes a corresponding plane (117) formed on the housing (112) and a top screw (118) mounted on the adapter seat (111).

6. The probe for online tool detection according to claim 1, characterized in that: The adapter handle (2) includes a connecting seat (21) fixed to the upper end of the measuring needle seat (123), a guide frame (22) slidably mounted inside the connecting seat (21), latches (23) slidably mounted at both ends of the guide frame (22) through inclined grooves, a bolt rod (24) threadedly mounted inside the connecting seat (21), and the upper end of the bolt rod (24) is rotatably connected to the guide frame (22), and a cavity (25) is provided on the outer wall of the connecting seat (21).

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