Reusable tool verification tool

Abstract

The utility model provides a reusable cutter checking tool, which relates to the technical field of numerical control machining and comprises a checking base, a positioning camera and a reflecting seat, and the positioning camera and the reflecting seat are symmetrically arranged at two ends of the checking base. Angle steel pieces are fixed at the corners of the two sides of the verification base, and a rail table is arranged below the two angle steel pieces at the same end; compared with a traditional prefabricated verification tool matched with a machine tool platform, the verification tool provided by the utility model has the beneficial effects that the verification base matched with the positioning camera is arranged on the verification base, and the rail table and the displacement motor in the verification base are used for matching with the position of the positioning camera; during actual tool checking, real-time displacement compensation is carried out according to the hovering position of the tool, meanwhile, the checking base serves as a machining platform to carry out tool machining, and therefore the checking tool can cope with various measurement and checking scenes of transverse and longitudinal movement of the tool after being prefabricated and formed.

Description

Technical Field

[0001] The utility model relates to the technical field of numerical control processing, and relates to a reusable tool calibration tool. Background Art

[0002] The positioning and setting of the tool during CNC machine processing has a decisive influence on the machining accuracy of the workpiece. The preset calibration tool is mainly used to detect the X / Z coordinate data of the boring and milling machine edges on CNC machine tools, machining centers and flexible manufacturing units. It is mainly designed to simplify tool preset and measurement.

[0003] However, since the existing calibration tooling mainly uses prefabricated structures to match the tool, when it is put into production for calibration, it is necessary to consider the range of motion of the lathe processing platform and the horizontal and vertical axes of the tool to match and install the calibration tooling. The time and cost of making the tooling restrict the processing efficiency during small-batch production, making the existing prefabricated tool calibration tooling less applicable. Utility Model Content

[0004] In view of the above technical problems existing in the prior art, a reusable tool calibration tool is provided.

[0005] The purpose and effect of the utility model are achieved by the following specific technical means:

[0006] A reusable tool calibration tool comprises a calibration base, a positioning camera and a reflection seat, wherein the positioning camera and the reflection seat are symmetrically arranged at two ends of the calibration base;

[0007] Angle steel pieces are fixed to both side corners of the calibration base, rail platforms are arranged under the two angle steel pieces at the same end, an inner shaft is arranged horizontally through the rail platform and the angle steel piece, a matching shaft cylinder is sleeved on the inner shaft, a transmission shaft threadedly matched with the matching shaft cylinder is arranged in the calibration base, and a displacement motor is arranged at one end of the transmission shaft;

[0008] The positioning camera head and the reflection seat are provided with matching camera head components.

[0009] Furthermore, the calibration base is a cast iron platform plate, and a positioning hole is opened on the calibration base.

[0010] Furthermore, a mounting platform is fixed to one end of the positioning camera head and the camera assembly in the reflector seat, a slide is protruded from the outer side of the mounting platform, and an angle seat that slidably cooperates with the slide is provided at the outer end of the positioning camera head and the reflector seat.

[0011] Furthermore, the displacement motor and the camera assembly transmit signals via wireless Internet of Things.

[0012] Furthermore, the inner shaft and the matching shaft cylinder are relatively fixed coaxial core structures, and the relative rail platforms are linked by the matching shaft cylinder.

[0013] Furthermore, the camera assembly is a matching laser light source measurement camera.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] Compared with the traditional prefabricated calibration tool that matches the machine tool platform, this reusable tool calibration tool sets a calibration base that matches the positioning camera on the calibration base, uses the rail table and displacement motor in the calibration base to match the position of the positioning camera, performs real-time displacement compensation according to the tool hovering position during actual tool calibration, and uses the calibration base as a processing platform for tool processing. This allows the calibration tool to cope with various measurement and calibration scenarios of horizontal and vertical tool movements after prefabrication, thereby improving the applicability and reusability of the calibration tool. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the internal planar structure of the calibration base of the utility model;

[0018] Figure 3 It is a schematic diagram of the internal planar structure of the positioning camera head of the utility model.

[0019] Markings in the figure: 1-calibration base; 2-positioning camera; 3-reflection seat; 4-angle seat; 5-rail platform; 6-angle steel piece; 7-inner shaft; 8-matching shaft cylinder; 9-displacement motor; 10-transmission shaft; 11-camera assembly; 12-installation platform; 13-slide. DETAILED DESCRIPTION

[0020] See also Figure 1-3 , the embodiments of the utility model are further described;

[0021] A reusable tool calibration tool comprises a calibration base 1, a positioning camera 2 and a reflection seat 3, wherein the positioning camera 2 and the reflection seat 3 are symmetrically arranged at two ends of the calibration base 1;

[0022] Angle steel pieces 6 are fixed to both side corners of the calibration base 1, and rail platforms 5 are arranged under the two angle steel pieces 6 at the same end. An inner shaft 7 is arranged horizontally through the rail platform 5 and the angle steel piece 6, and a matching shaft cylinder 8 is sleeved on the inner shaft 7. A transmission shaft 10 threadedly matched with the matching shaft cylinder 8 is arranged in the calibration base 1, and a displacement motor 9 is arranged at one end of the transmission shaft 10;

[0023] The positioning camera head 2 and the reflection seat 3 are provided with matching camera head components 11 .

[0024] The tool calibration fixture uses a rail platform 5 arranged under the calibration base 1 as a displacement support structure of the calibration base 1. On this basis, an inner shaft 7 inserted between the rail platform 5 and the angle steel piece 6 is used as an axial structure to serve as an axial displacement track of the calibration base 1. The displacement motor 9 brakes by receiving a driving signal from the lathe PLC system, and uses the driven transmission shaft 10 to perform spiral axial displacement with the matching shaft cylinder 8 to meet the requirements of the horizontal and vertical displacement of the calibration base 1.

[0025] The calibration method of the calibration tool is based on the existing tool calibration measurement method. The light source is emitted at the end of the positioning camera 2 through the matching optical camera assembly 11, and the light source is received by the reflector seat 3 at the other end. The light source rays contact the cut surface of the tool during the process, and the corresponding tool cross-sectional dimensions are obtained according to the changes in the horizontal and vertical displacements of the tool to complete the calibration of the tool.

[0026] Compared with the traditional tool calibration tool, this calibration tool adopts a prefabricated calibration base 1 and a fixed matching positioning camera 2 and a reflector seat 3 to calibrate the tool after matching and installation. When facing different batches of tool processing, tool size changes, and changes in the horizontal and vertical processing displacements of the tool, the displacement activity of the calibration base 1 can be used for matching to meet the requirements of reusability, effectively shortening the time cost brought by the calibration using prefabricated tool calibration tool.

[0027] On the basis of the above, the calibration base 1 is a cast iron platform plate, and positioning holes are opened on the calibration base 1. The positioning holes serve as installation holes extended on the calibration base 1 to provide corresponding fixed points for the installation of the lathe platform and the fixture.

[0028] Preferably, a mounting platform 12 is fixed to one end of the positioning camera 2 and the camera assembly 11 in the reflection seat 3, a slide 13 is protruding from the outer side of the mounting platform 12, and the outer ends of the positioning camera 2 and the reflection seat 3 are provided with an angle seat 4 that slides with the slide 13. As a supporting structure for the positioning camera 2 and the reflection seat 3, the angle seat 4 is adjusted to cope with the axial displacement change of the calibration base 1 by performing a transverse axial displacement with the slide 13 between the mounting platform 12, so as to further adapt the matching accuracy of the positioning camera 2, the reflection seat 3 and the calibration base 1.

[0029] Preferably, the displacement motor 9 and the camera assembly 11 transmit signals via wireless Internet of Things, which is a way of connecting the lathe PLC control system with the transmission. At the same time, the Internet of Things displacement motor 9 and the camera assembly 11 are linked to the camera assembly 11 to verify the horizontal and vertical axial coordinate information of the tool, so as to further meet the displacement control of the lathe PLC control system.

[0030] Preferably, the inner shaft 7 and the matching shaft cylinder 8 are relatively fixed coaxial core structures, and the relative rail platforms 5 are linked by the matching shaft cylinder 8, and the matching shaft cylinders 8 in the rail platforms 5 at both ends are linked by the shaft core structure extending between the matching shaft cylinders 8.

[0031] Preferably, the camera assembly 11 is a matching laser light source measurement camera. Compared with the traditional contact calibration tool measurement or grating positioning method, the laser light source of the camera assembly 11 and the receiving end matched with the reflector seat 3 are used to measure the displacement signal according to the receiving delay between the real-time emitted laser light source and the receiving end. The corresponding tool position is obtained by the light source signal delay after the laser light source contacts the tool cross section and when the tool moves, so as to meet the calibration accuracy of the tool calibration tool.

[0032] The implementation method of the device is to use the calibration base 1 as a replaceable platform structure to be installed at the installation position of the lathe processing platform, and its rail platform 5 structure serves as a fixed support structure between the calibration base 1 and the lathe. During prefabrication and installation, the calibration base 1 is adjusted relative to the positioning camera 2 and the reflection seat 3 in combination with the corresponding tool size and the lateral, longitudinal and axial displacement range of the tool. Specifically, the lathe PLC system is used to control the braking of the displacement motor 9, and the displacement motor 9 drives the transmission shaft 10 to make a relative screw-in axial displacement along the matching shaft tube 8, so that the position of the entire calibration base 1 processing platform is matched with the tool, and when the tool moves to the axial limit position, the calibration base 1 is moved to compensate for the displacement of the processing position, so as to expand the calibration range of the calibration tool that can cope with the tool calibration, thereby meeting the calibration use of various tool specifications in different scenarios.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A reusable tool calibration tool, characterized in that: It comprises a calibration base (1), a positioning camera (2) and a reflection base (3), wherein the positioning camera (2) and the reflection base (3) are symmetrically arranged at two ends of the calibration base (1); Angle steel pieces (6) are fixed to both side corners of the calibration base (1), rail platforms (5) are arranged under the two angle steel pieces (6) at the same end, an inner shaft (7) is arranged transversely between the rail platform (5) and the angle steel piece (6), a matching shaft cylinder (8) is sleeved on the inner shaft (7), a transmission shaft (10) threadedly matched with the matching shaft cylinder (8) is arranged in the calibration base (1), and a displacement motor (9) is arranged at one end of the transmission shaft (10); The positioning camera head (2) and the reflection seat (3) are provided with matching camera head components (11).

2. A reusable tool calibration tool according to claim 1, characterized in that: The calibration base (1) is a cast iron platform plate, and a positioning hole is opened on the calibration base (1).

3. The reusable tool calibration tool according to claim 1, characterized in that: A mounting platform (12) is fixed to one end of the positioning camera head (2) and the camera head assembly (11) in the reflective seat (3); a slide table (13) is protruding from the outer side of the mounting platform (12); and an angle seat (4) that slidably cooperates with the slide table (13) is provided at the outer ends of the positioning camera head (2) and the reflective seat (3).

4. The reusable tool calibration tool according to claim 1, characterized in that: The displacement motor (9) and the camera assembly (11) transmit signals via wireless Internet of Things.

5. The reusable tool calibration tool according to claim 1, characterized in that: The inner shaft (7) and the matching shaft cylinder (8) are relatively fixed coaxial core structures, and the relative rail platforms (5) are linked via the matching shaft cylinder (8).

6. The reusable tool calibration tool according to claim 1, characterized in that: The camera assembly (11) is a matching laser light source measurement camera.

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