Cutter wear detection device of numerical control machine tool

Abstract

The utility model relates to the technical field of machine tool cutter detection, in particular to a cutter wear detection device of a numerical control machine tool, which comprises a device seat, a sliding groove is arranged in the middle of the upper end of the device seat, and a slidable cutter set is arranged at the upper end of the sliding groove. Contact sensors are symmetrically installed on the left and right sides of the bottom of the detection groove, a slidable trapezoidal plate is arranged in the middle of the detection groove, and a reset spring is fixedly installed in the middle of the lower end of the trapezoidal plate. When the cutter detection device is used, the cutter presses the trapezoidal plate downwards in the detection groove, the reset spring shrinks, the abutting column abuts against the contact sensor, the contact sensor obtains information and indicates that the cutter can still be used, and when the cutter presses the trapezoidal plate downwards, the reset spring shrinks, the abutting column does not abut against the contact sensor, and the contact sensor cannot obtain the information, the cutter can still be used. And the cutter cannot be continuously used.

Description

Technical Field

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

[0002] CNC machine tool is the abbreviation of digitally controlled machine tool. It is an automated machine tool equipped with a program control system. The control system can logically process programs specified by control codes or other symbolic instructions, decode them, express them in coded numbers, and input them into the CNC device through information carriers. After calculation and processing, the CNC device sends various control signals to control the movement of the machine tool and automatically process parts according to the shape and size required by the drawing.

[0003] Before performing CNC operations, the tool needs to be inspected to see if its surface is curled, in order to prevent damage to parts caused by tool damage during the machining process. Existing tool inspections are divided into two situations: one is to manually observe whether the tool surface is curled. In manual inspections, some small curls are difficult to detect manually; the other is mechanical inspection, which requires the tool to be removed from the machine tool for inspection. The overall operation is cumbersome and inconvenient to use. At the same time, after the inspection is completed, the tool needs to be replaced, and the damaged tool cannot be reset for use. Therefore, those skilled in the art provide a tool wear detection device for CNC machine tools to solve the problems raised in the above background technology. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a tool wear detection device for a CNC machine tool, comprising a device seat, a sliding groove is provided in the middle of the upper end of the device seat, a slidable tool holder group is provided at the upper end of the sliding groove, a detection groove is provided in the middle of the bottom of the sliding groove, and contact sensors are symmetrically installed on the left and right sides of the bottom of the detection groove, and a signal is transmitted to the operator through the contact sensor to indicate whether the tool is worn and can be used again. The tool wear is detected. The detection groove is provided in the middle, a slidable trapezoidal plate is fixedly installed in the middle, a reset spring is fixedly installed in the middle of the lower end of the trapezoidal plate, and a support column is symmetrically fixedly installed on the lower end of the trapezoidal plate, and the support column is correspondingly arranged. The front and rear side walls of the detection groove are symmetrically provided with an inner card slot, an inner card strip is provided on the right side of the inner card strip, and a slidable T-shaped card strip is provided on the outer wall of the inner side of the inner card strip, and a cutter is fixedly installed on the inner side of the T-shaped card strip, and the cutter can be customized according to the actual use angle of the tool according to the need to detect the actual use angle of the tool, thereby ensuring that the cutter can be used stably during the tool reset cutting process.

[0005] Preferably, a waste discharge port is provided at the bottom of the middle portion of the inner slot.

[0006] Preferably: the tool holder group includes a tool holder seat, a limit plate, a fixed sliding column, a sleeve plate, a screw, a knob, a tool holder plate, a long bolt hole and a tool holder groove, the limit plates are symmetrically fixedly installed on the front and back sides of the tool holder seat, the fixed sliding columns are symmetrically fixedly installed on the front and back sides of the left end face of the tool holder seat, and the same sleeve plate is provided on the fixed sliding columns.

[0007] Preferably: a rotatable screw is fixedly installed on the rear side of the left end face of the tool holder, and a knob is fixedly installed on the screw through the sleeve plate. By rotating the knob, the screw and the sleeve plate are engaged and rotated, so that the sleeve plate slides in a direction on the fixed sliding column, thereby clamping and fixing the mounted tool.

[0008] Preferably: a tool holder plate is symmetrically arranged at the front and back ends between the tool holder seat and the sleeve plate, a long bolt hole is opened on the left side of the upper end of the tool holder plate, and a fixing bolt is provided on the tool holder plate. The fixing bolt on the left side slides correspondingly with the long bolt hole, thereby maintaining the sleeve plate after completing the clamping work, and the fixing bolt is used to further strengthen the fixation, thereby reducing the shaking of the tool during subsequent detection and cutting reset.

[0009] Preferably, a knife-holding groove is provided on the inner end surface of the knife-holding plate, and the knife-holding groove is convenient for placing the knife.

[0010] The technical effects and advantages of this utility model are:

[0011] 1. When the utility model is used, the tool is placed on the upper end of the tool mounting groove, the tool is pressed, and the knob is turned to engage and rotate the screw and the sleeve, so that the sleeve slides directionally on the fixed sliding column, thereby clamping and fixing the mounted tool, and then the fixing bolt is used to further strengthen the fixation, thereby reducing the shaking of the tool during subsequent detection and cutting reset.

[0012] 2. When the present invention is used, the tool presses down the trapezoidal plate in the detection groove, the reset spring contracts, the push column presses against the contact sensor, and the contact sensor obtains information, indicating that the tool can still be used. However, when the tool presses down the trapezoidal plate, the reset spring contracts, the push column fails to press against the contact sensor, and the contact sensor cannot obtain information, indicating that the tool cannot be used anymore.

[0013] 3. When the present invention is used, the knife holder is slid on the sliding groove so that the tool contacts the cutter in the detection groove to realize the cutting process, and the T-shaped card strip and the inner card strip are used to slide and replace the cutters at different angles until the tool can press the trapezoidal plate, the reset spring contracts, the support column presses the contact sensor, and the contact sensor obtains information, so that the tool is reset and used, reducing cost consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural diagram provided by this application;

[0015] Figure 2It is a structural schematic diagram of the detection tank provided by this application;

[0016] Figure 3 It is a structural schematic diagram of the knife support assembly provided by this application;

[0017] Figure: 1. Device base; 2. Sliding slot; 3. Detection slot; 4. Contact sensor; 5. Trapezoidal plate; 6. Return spring; 7. Column; 8. Internal slot; 9. Waste outlet; 10. Internal retaining strip; 11. T-shaped retaining strip; 12. Cutter; 13. Knife holder assembly.

[0018] 131. Tool holder seat; 132. Limit plate; 133. Fixed sliding column; 134. Sleeve plate; 135. Screw; 136. Knob; 137. Tool holder plate; 138. Long bolt hole; 139. Tool holder groove. DETAILED DESCRIPTION

[0019] The present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for purposes of illustration and description and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for specific applications.

[0020] See also Figures 1 to 3 In this embodiment, a tool wear detection device for a CNC machine tool is provided, comprising a device base 1, a sliding groove 2 is provided in the middle of the upper end of the device base 1, a slidable tool holder group 13 is provided on the upper end of the sliding groove 2, a detection groove 3 is provided in the middle of the bottom of the sliding groove 2, contact sensors 4 are symmetrically installed on the left and right sides of the bottom of the detection groove 3, and a signal is transmitted to the operator through the contact sensor 4 to indicate whether the tool is worn and can be used again, a slidable trapezoidal plate 5 is provided in the middle of the detection groove 3, a reset spring 6 is fixedly installed in the middle of the lower end of the trapezoidal plate 5, and the lower end of the trapezoidal plate 5 is provided. A support column 7 is fixedly installed symmetrically on the left and right sides, and the support column 7 is corresponding to the contact sensor 4. The inner card slot 8 is symmetrically provided on the front and rear side walls of the detection slot 3. A waste discharge port 9 is provided at the bottom of the middle of the inner card slot 8. An inner card strip 10 is provided on the right side of the inner card slot 8. A slidable T-shaped card strip 11 is provided on the outer wall of the inner side of the inner card strip 10. A cutter 12 is fixedly installed on the inner side of the T-shaped card strip 11. The cutter 12 can be customized according to the actual use angle of the tool as needed to detect the tool, thereby ensuring that the cutter 12 can be used stably during the tool reset cutting process;

[0021] The tool holder assembly 13 includes a tool holder seat 131, a limit plate 132, a fixed sliding column 133, a sleeve plate 134, a screw 135, a knob 136, a tool holder plate 137, a long bolt hole 138 and a tool holder slot 139. The limit plates 132 are symmetrically fixed on the front and rear sides of the tool holder seat 131. The fixed sliding column 133 is symmetrically fixed on the front and rear sides of the left end face of the tool holder seat 131. The same sleeve plate 134 is sleeved on the fixed sliding column 133. A rotatable screw 135 is fixedly installed on the rear side of the left end face of the tool holder seat 131. The screw 135 passes through the sleeve plate 134 and is fixedly installed with a knob 136. By rotating the knob 136, the screw 135 is engaged with the sleeve plate 134 and rotated. The movement causes the sleeve plate 134 to slide in a direction on the fixed sliding column 133, thereby clamping and fixing the mounted tool. A knife plate 137 is symmetrically arranged at the upper end between the tool holder seat 131 and the sleeve plate 134. A long bolt hole 138 is provided on the left side of the upper end of the knife plate 137. A fixing bolt is provided on the knife plate 137. The fixing bolt on the left side slides correspondingly with the long bolt hole 138, thereby maintaining the sleeve plate 134. After completing the clamping work, the fixing bolt is used to further strengthen the fixation, thereby reducing the shaking of the tool during subsequent detection and cutting reset. A knife groove 139 is provided on the inner end face of the knife plate 137, and the knife groove 139 is convenient for placing the tool.

[0022] The working principle of this utility model is:

[0023] When the present invention is used, the tool is placed on the upper end of the tool mounting groove 139, the tool is pressed, and the knob 136 is turned to engage and rotate the screw 135 with the sleeve plate 134, so that the sleeve plate 134 slides directionally on the fixed sliding column 133, thereby clamping and fixing the mounted tool. Then, the fixing bolt is used to further strengthen the fixation, thereby reducing the tool from shaking during subsequent detection and cutting reset. The tool presses down the trapezoidal plate 5 in the detection groove 3, the reset spring 6 contracts, and the support column 7 presses the contact sensor 4. The contact sensor 4 obtains information, indicating that the tool is still It can be used, and when the trapezoidal plate 5 is pressed down inside the tool, the reset spring 6 contracts, the support column 7 fails to press the contact sensor 4, and the contact sensor 4 cannot obtain any information, indicating that the tool cannot be used any further, so the tool holder 13 is slid on the sliding groove 2, so that the tool contacts the cutter 12 in the detection groove 3 to realize the cutting process, and the T-shaped card strip 11 and the inner card strip 10 are used to slide and replace the cutters 12 at different angles until the tool can press the trapezoidal plate 5, the reset spring 6 contracts, the support column 7 presses the contact sensor 4, and the contact sensor 4 obtains information.

[0024] Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without making any creative efforts should fall within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described and explained in this utility model shall be implemented in accordance with conventional means in the field unless otherwise specified or limited.

Claims

1. A tool wear detection device for a CNC machine tool, comprising a device base (1), characterized in that: The device seat (1) is provided with a sliding groove (2) at the middle of the upper end, a slidable knife support group (13) is provided at the upper end of the sliding groove (2), a detection groove (3) is provided at the middle of the bottom of the sliding groove (2), contact sensors (4) are symmetrically installed on the left and right sides of the bottom of the detection groove (3), a slidable trapezoidal plate (5) is provided in the middle of the detection groove (3), a reset spring (6) is fixedly installed at the middle of the lower end of the trapezoidal plate (5), a support column (7) is fixedly installed on the left and right sides of the lower end of the trapezoidal plate (5), and the support column (7) is correspondingly arranged with the contact sensor (4), and inner card grooves (8) are symmetrically provided on the front and rear side walls of the detection groove (3), an inner card strip (10) is provided on the right side of the inner card strip (8), a slidable T-shaped card strip (11) is provided on the outer wall of the inner side of the inner card strip (10), and a cutter (12) is fixedly installed on the inner side of the T-shaped card strip (11).

2. The tool wear detection device for a CNC machine tool according to claim 1, characterized in that: A waste discharge port (9) is provided at the bottom of the middle portion of the inner card slot (8).

3. The tool wear detection device for a CNC machine tool according to claim 1, characterized in that: The knife support assembly (13) comprises a knife support seat (131), a limiting plate (132), a fixed sliding column (133), a sleeve plate (134), a screw rod (135), a knob (136), a knife support plate (137), a bolt long hole (138) and a knife support groove (139). The limiting plates (132) are symmetrically fixedly installed on the front and rear sides of the knife support seat (131), and the fixed sliding column (133) is symmetrically fixedly installed on the front and rear sides of the left end face of the knife support seat (131). The same sleeve plate (134) is sleeved on the fixed sliding column (133).

4. The tool wear detection device for a CNC machine tool according to claim 3, characterized in that: A rotatable screw rod (135) is fixedly installed on the rear side of the left end surface of the tool holder seat (131), and the screw rod (135) passes through the sleeve plate (134) and is fixedly installed with a knob (136).

5. The tool wear detection device for a CNC machine tool according to claim 4, characterized in that: A knife support plate (137) is symmetrically arranged at the upper end between the knife support seat (131) and the sleeve plate (134), and a bolt long hole (138) is opened on the left side of the upper end of the knife support plate (137). A fixing bolt is arranged on the knife support plate (137), and the fixing bolt on the left side slides correspondingly with the bolt long hole (138).

6. The tool wear detection device for a CNC machine tool according to claim 5, characterized in that: The inner end surface of the knife-carrying plate (137) is provided with a knife-carrying groove (139), and the knife-carrying groove (139) is convenient for placing the knife.

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