Cutter pendulum detector and cutter pendulum detection method of machine tool cutter

Abstract

The cutter pendulum detector comprises a cutter pendulum calibration and adjustment unit and a supporting bearing which are coaxially arranged up and down, the cutter pendulum calibration and adjustment unit comprises an installation part, a plurality of movable adjustment beads and a threaded column, the installation part is provided with a center through hole and a plurality of installation through holes, and the center through hole is communicated with the installation through holes. The movable adjusting bead is movably assembled in an inner hole opening, close to the central through hole, of the mounting through hole, one side of the movable adjusting bead protrudes out of the inner hole opening and is used for abutting against a measured object in a sliding mode, the threaded column is arranged in the mounting through hole and is used for abutting against the other side of the movable adjusting bead, and the threaded column is rotated to adjust the protruding amount of the movable adjusting bead corresponding to the threaded column. Therefore, the tool pendulum precision can be detected in an environment without relying on a machine tool, the tool pendulum precision is prevented from being directly adjusted on a main shaft of the machine tool, and short machine adjustment time and high efficiency are further ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of mechanical processing, and in particular to a tool swing detector for a machine tool and a tool swing detection method. Background Art

[0002] Tool swing refers to the deviation between the tool's operating diameter and the tool's standard diameter caused by the machine tool's spindle or other reasons when the machine tool's tool moves.

[0003] Currently, when testing the tool swing accuracy, the milling cutter handle is first installed on the machine tool spindle, and then the pointer of the micrometer is placed against the outer cylindrical end of the tool rod of the handle. The handle is then rotated, and the runout value of the micrometer is used to determine whether the tool swing accuracy or coaxial runout accuracy is within the qualified range. For example, the fine machining requires the tool swing accuracy to be less than 0.01mm, and if the tool swing accuracy exceeds the qualified range, the installation position of the tool handle on the machine tool spindle needs to be reciprocated. Such machine adjustment is time-consuming and inefficient. Summary of the invention

[0004] To this end, in order to solve the above-mentioned problem, the present invention provides a tool swing detector and a tool swing detection method for a machine tool, which can detect the tool swing accuracy in an environment independent of the machine tool, so as to avoid adjusting the tool swing accuracy directly on the machine tool spindle, thereby ensuring that the machine adjustment time is short and the efficiency is high.

[0005] To achieve the above purpose, the technical solution provided by the present invention is as follows:

[0006] The present invention provides a tool swing detector for a machine tool, comprising a tool swing calibration adjustment unit and a support bearing for cooperating with the rotation of a measured object; the support bearing and the tool swing calibration adjustment unit are coaxially arranged at the upper and lower parts; the tool swing calibration adjustment unit is used to calibrate the tool swing accuracy of the measured object, and comprises a mounting member and a plurality of matching movable adjustment beads and threaded columns, the mounting member has a central through hole axially penetrating its upper and lower surfaces and a plurality of mounting through holes extending radially and connected to the central through hole, the central through hole corresponds to the inner ring hole of the support bearing; the movable The adjusting bead can be movably assembled in the inner hole opening of the mounting through hole close to the central through hole, and one side of the movable adjusting bead protrudes from the inner hole opening for slidingly abutting against the object to be measured; the threaded column is arranged in the mounting through hole, and is used to abut against the other side of the movable adjusting bead away from the central through hole, and the threaded column located in the mounting through hole is rotated to adjust the protrusion amount of the corresponding movable adjusting bead protruding from the mounting through hole until the rotational runout value of the inspection rod located in the central through hole is within the qualified range, so as to quickly identify the coaxial runout accuracy of the object to be measured.

[0007] Furthermore, the outer wall of the movable adjusting bead is provided with a limiting groove, and the hole wall of the inner hole opening is inserted into the limiting groove, so that the movable trajectory of the movable adjusting bead is limited by the hole wall of the inner hole opening.

[0008] Furthermore, it also includes a shell, which has an opening on one side, and the knife swing calibration adjustment unit and the support bearing are respectively assembled in the shell, and the opening of the shell, the central through hole and the inner circle hole are arranged as coaxial axes.

[0009] Furthermore, a clearance through hole connected to the mounting through hole is formed on the outer peripheral wall of the shell, and one end of the threaded column close to the clearance through hole is used for externally connecting a tool for rotating the threaded column.

[0010] Furthermore, a support shaft coaxial with the inner circle hole is provided on the bottom wall of the shell body opposite to the opening thereof, and the support shaft is used for rotational support of the object to be measured.

[0011] Furthermore, a plurality of movable adjustment beads and threaded columns are respectively spaced around the central through hole.

[0012] Furthermore, every two adjacent movable adjustment beads are arranged at equal intervals.

[0013] Furthermore, the number of the support bearings is multiple, and the multiple support bearings are arranged in the housing at intervals to match different models of objects to be measured.

[0014] The present invention provides a tool swing detection method, which uses the tool swing detector of the machine tool tool to detect the tool swing of the object to be detected, including the following steps: S1, loosening the multiple threaded columns of the tool swing calibration and adjustment unit respectively to ensure that the various movable adjustment beads of the tool swing calibration and adjustment unit have a sufficient range of motion; S2, inserting the detection rod for tool swing calibration into the tool swing detector, and passing through the inner ring of the support bearing and the central through hole of the mounting part of the tool swing calibration and adjustment unit in sequence, and forming a rotatable arrangement; S3, rotating the various threaded columns of the tool swing calibration and adjustment unit, and through the screw connection between each threaded column and the mounting part, respectively, to drive the corresponding movable adjustment beads to perform corresponding movements, thereby adjusting the corresponding movable adjustment beads. The protrusion amount of the corresponding movable adjusting bead protrudes from the mounting through hole of the mounting part until each movable adjusting bead respectively abuts the outer circumferential surface of the inspection rod, then the pointer of the micrometer abuts the inspection rod, and the inspection rod is driven to rotate; the rotational runout value of the inspection rod is identified through the feedback of the runout value of the micrometer, and the protrusion amount of each movable adjusting bead is fine-tuned again until the runout value of the micrometer is within the qualified range, that is, the coaxial runout accuracy of the inspection rod is guaranteed to be within the qualified range; S4, the inspection rod is taken out from the tool swing detector, and then the tool handle of the machine tool is inserted into the tool swing detector, and the pointer of the micrometer abuts the tool rod of the tool handle, and the tool handle is driven to rotate, and then the runout value of the micrometer is used to determine whether the coaxial runout accuracy of the tool handle is qualified.

[0015] Furthermore, a support shaft coaxial with the inner ring hole of the support bearing is provided in the housing of the tool swing detector, and the support shaft is used for rotational support of the inspection rod or the tool handle.

[0016] The technical solution provided by the present invention has the following beneficial effects:

[0017] The threaded column located in the mounting through hole is rotated to adjust the protrusion amount of the corresponding movable adjusting bead out of the mounting through hole until the rotational runout value of the inspection rod located in the central through hole is within the qualified range, and then the inspection rod is taken out from the tool swing detector, and then the tool handle of the machine tool is inserted into the tool swing detector, and the pointer of the micrometer is abutted against the tool rod of the tool handle, and the tool handle is driven to rotate, and then the coaxial runout accuracy of the tool handle is determined by the runout value of the micrometer to realize rapid identification of the coaxial runout accuracy of the tool handle. In this way, the tool swing accuracy can be detected in an environment without relying on the machine tool, so as to avoid adjusting the tool swing accuracy directly on the machine tool spindle, thereby ensuring short machine adjustment time and high efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The figure shows an exploded view of a tool swing detector of a machine tool equipped with a tool handle in an embodiment;

[0019] Figure 2 The figure shows a cross-sectional view of a tool swing detector of a machine tool equipped with a tool handle in an embodiment;

[0020] Figure 3 The figure shows a cross-sectional view of the knife swing calibration adjustment unit in the embodiment;

[0021] Figure 4 Shown is a schematic diagram of a knife swing detection method in an embodiment;

[0022] Figure 5 FIG. 2 is a schematic diagram of a housing in an embodiment. DETAILED DESCRIPTION

[0023] To further illustrate the various embodiments, the present invention provides drawings. These drawings are part of the disclosure of the present invention, which are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, a person of ordinary skill in the art should be able to understand other possible implementations and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0024] The present invention will now be further described with reference to the accompanying drawings and specific implementation methods.

[0025] Reference Figures 1 to 5As shown, the present embodiment provides a tool swing detector for a machine tool (hereinafter referred to as the tool swing detector 100) for quickly identifying whether the tool swing accuracy or coaxial runout accuracy of the tool holder 6 of the machine tool tool is qualified, and the object to be measured in the present embodiment is the tool holder 6 or the inspection rod 5 for tool swing calibration.

[0026] like Figure 1 and Figure 2 As shown, the tool swing detector 100 of this embodiment includes a tool swing calibration adjustment unit 1, a cylindrical shell 2 and two support bearings for cooperating with the rotation of the object to be measured, the shell 2 has a side opening 21, the two support bearings and the tool swing calibration adjustment unit 1 are coaxially arranged at the upper and lower parts and are respectively assembled in the shell 2, and the two support bearings are arranged in the shell 2 at a distance, and are defined as the first support bearing 3 and the second support bearing 4. Specifically, the first support bearing 3 is assembled at the opening 21 of the shell 2, and the second support bearing 4 is assembled between the first support bearing 3 and the tool swing calibration adjustment unit 1, the first support bearing 3 and the tool swing calibration adjustment unit 1 cooperate with each other, or the second support bearing 4 and the tool swing calibration adjustment unit 1 cooperate with each other, so as to detect tool handles 6 of different models. Of course, in other embodiments, the number of support bearings may also be 1 or more than 3.

[0027] like Figure 3 As shown, the tool swing calibration and adjustment unit 1 is used to calibrate the tool swing accuracy of the tool handle 6, and includes a circular mounting member 11 and 6 matching movable adjustment beads 12 and threaded columns 13. The mounting member 11 has a central through hole 111 axially extending through its upper and lower surfaces and 6 mounting through holes 112 extending radially and connected to the central through hole 111. The 6 movable adjustment beads 12 and threaded columns 13 are respectively arranged around the central through hole 111 at equal intervals. The central through hole 111 corresponds to the inner ring holes of the two supporting bearings respectively, and the opening 21 of the housing 2, the central through hole 111 and the inner ring holes of the two supporting bearings are arranged as concentric axes.

[0028] like Figure 5 As shown, the outer peripheral wall of the housing 2 is provided with a clearance through hole 22 connected to the mounting through hole 112, and the outer end of the threaded column 13 near the clearance through hole 22 is used to connect a tool for rotation, such as a hexagonal wrench or a screwdriver. Of course, the outer peripheral wall of the housing 2 can also adopt a hollow structure to expose the outer opening of the mounting through hole 112 away from the movable adjustment bead 12, so as to facilitate the connection of tools.

[0029] like Figure 2 and Figure 3 As shown, the movable adjustment bead 12 can be movably assembled in the inner hole 113 of the installation through hole 112 close to the central through hole 111, and one side of the movable adjustment bead 12 protrudes from the inner hole 113 for slidingly abutting against the tool handle 6 or the inspection rod 5.

[0030] The threaded column 13 is arranged in the mounting through hole 112, and is used to abut against the other side of the movable adjusting bead 12 away from the center through hole 111, and the threaded column 13 located in the mounting through hole 112 is rotated to adjust the protrusion amount of the corresponding movable adjusting bead 12 protruding from the mounting through hole 112 until the rotational runout value of the testing rod 5 located in the center through hole 111 is within the qualified range, so as to quickly identify the coaxial runout accuracy of the tool handle 6 to be tested.

[0031] In this embodiment, the movable adjusting bead 12 is a metal sphere such as a steel ball, and a limiting groove is provided on the outer wall of the movable adjusting bead 12, and the hole wall of the inner hole opening 113 is inserted into the limiting groove so that the movable trajectory of the movable adjusting bead 12 is limited by the hole wall of the inner hole opening 113, thereby ensuring that the movable adjusting bead 12 can move back and forth within a certain distance along the radial direction of the central through hole 111.

[0032] In addition, the following tool swing detection method is adopted, and the tool swing detector 100 of this embodiment is used to detect the tool swing of the tool handle 6. The specific steps are as follows:

[0033] Step S1, loosen all the threaded columns 13 of the tool swing calibration and adjustment unit 1 respectively to ensure that each movable adjustment bead 12 of the tool swing calibration and adjustment unit 1 has a sufficient range of movement.

[0034] like Figure 4 As shown, in step S2, the inspection rod 5 is inserted into the tool swing detector 100, and passes through the inner ring and the center through hole 111 of the first support bearing 3 in sequence, and forms a rotatable arrangement. At this time, the second support bearing 4 does not participate in the tool swing detection and does not contact the object to be measured.

[0035] like Figure 2 and Figure 3 As shown, in step S3, each threaded column 13 is rotated, and each threaded column 13 is screwed to the mounting member 11 to drive the corresponding movable adjusting bead 12 to move accordingly, thereby adjusting the protrusion of the corresponding movable adjusting bead 12 from the inner hole 11, until each movable adjusting bead 12 abuts against the outer circumferential surface of the inspection rod 5, and then the pointer of the micrometer abuts against the inspection rod 5, and the inspection rod 5 is driven to rotate, and then the runout value of the micrometer is fed back to identify the rotation runout value of the inspection rod 5, and each threaded column 13 is rotated again by the tool to fine-tune the protrusion of each movable adjusting bead 12, until the runout value of the micrometer is within the qualified range, that is, to ensure that the coaxial runout accuracy of the inspection rod 5 is also within the qualified range.

[0036] like Figure 4As shown, in step S4, the inspection rod 5 is taken out from the tool swing detector 100, and then the tool holder 6 of the machine tool tool to be tested is inserted into the tool swing detector 100, and the pointer of the micrometer is brought into contact with the tool rod of the tool holder 6, and the tool holder 6 is driven to rotate, and then the coaxial runout accuracy of the tool holder 6 is determined by the runout value of the micrometer to determine whether it is qualified, so as to quickly identify qualified machine tool tools, thereby avoiding adjusting the tool swing accuracy on the machine tool spindle.

[0037] By rotating the threaded column 13 located in the mounting through hole 112 to adjust the protrusion amount of the corresponding movable adjusting bead 12 out of the mounting through hole 112, until the rotational runout value of the inspection rod 5 located in the central through hole 111 is within the qualified range, then the inspection rod 5 is taken out from the tool swing detector 100, and then the tool handle 6 of the machine tool tool is inserted into the tool swing detector 100, and the pointer of the micrometer is abutted against the tool rod of the tool handle 6, and the tool handle 6 is driven to rotate, and then the coaxial runout accuracy of the tool handle 6 is determined by the runout value of the micrometer to achieve rapid identification of the coaxial runout accuracy of the tool handle 6, so that the tool swing accuracy of the machine tool tool can be detected in an environment without relying on the machine tool, so as to avoid adjusting the tool swing accuracy directly on the machine tool spindle, thereby ensuring short machine adjustment time and high efficiency.

[0038] Further preferably, Figure 2 As shown, the bottom wall of the housing 2 opposite to its opening 21 is provided with a support shaft 23 coaxial with the inner ring holes of the two support bearings, and the support shaft 23 is used for the rotation support of the inspection rod 5 or the tool handle 6, and further ensures the accuracy of the tool swing precision. Of course, in other embodiments, the bottom wall of the housing 2 can also be provided with a rotation center groove or a rotation center boss, which can also be used for the rotation support of the inspection rod 5 or the tool handle 6.

[0039] Further preferably, Figure 5 As shown, the wall of the shell 2 located at the opening 21 is provided with three embedding grooves 24 for assembling the first support bearing 3, and the outer peripheral wall of the first support bearing 3 has three radially protruding and extending mounting portions, and the mounting portions of the first support bearing 3 are respectively inserted into the corresponding embedding grooves 24 to realize the assembly of the first support bearing 3 at the opening 21.

[0040] Although the present invention has been specifically shown and described in conjunction with the preferred embodiments, it should be understood by those skilled in the art that various changes may be made to the present invention in form and details without departing from the spirit and scope of the present invention as defined by the appended claims, all of which are within the scope of protection of the present invention.

Claims

1. A tool swing detector for a machine tool, characterized in that: It includes a tool swing calibration adjustment unit and a support bearing for cooperating with the rotation of the object to be measured; The support bearing and the knife swing calibration adjustment unit are coaxially arranged at the upper and lower parts; The tool swing calibration and adjustment unit is used to calibrate the tool swing accuracy of the object to be measured, and includes a mounting member and a plurality of matching movable adjustment beads and threaded columns, the mounting member has a central through hole axially penetrating its upper and lower surfaces and a plurality of mounting through holes extending radially and connected to the central through hole, the central through hole corresponds to the inner ring hole of the support bearing; the movable adjustment bead can be movably assembled in the mounting through hole close to the inner hole opening of the central through hole, and one side of the movable adjustment bead protrudes from the inner hole opening for sliding against the object to be measured; The threaded column is arranged in the mounting through hole and is used to abut the other side of the movable adjusting bead away from the center through hole, and the threaded column located in the mounting through hole is rotated to adjust the protrusion amount of the corresponding movable adjusting bead out of the mounting through hole until the rotational runout value of the testing rod located in the center through hole is within the qualified range, so as to quickly identify the coaxial runout accuracy of the object under test.

2. The tool swing detector for a machine tool according to claim 1, characterized in that: The outer wall of the movable regulating bead is provided with a limiting groove, and the hole wall of the inner hole opening is inserted into the limiting groove, so that the movable trajectory of the movable regulating bead is limited by the hole wall of the inner hole opening.

3. The tool swing detector for a machine tool according to claim 1 or 2, characterized in that: It also includes a shell having an opening on one side, the knife swing calibration adjustment unit and the support bearing are respectively assembled in the shell, and the opening of the shell, the central through hole and the inner circle hole are arranged as coaxial axes.

4. The tool swing detector for a machine tool according to claim 3, characterized in that: The outer peripheral wall of the shell is provided with a clearance through hole connected to the installation through hole, and one end of the threaded column close to the clearance through hole is used for externally connecting a tool for rotation thereof.

5. The tool swing detector for machine tool according to claim 3, characterized in that: A support shaft coaxial with the inner circle hole is arranged on the bottom wall of the shell body opposite to the opening thereof, and the support shaft is used for rotational support of the object to be measured.

6. The tool swing detector for a machine tool according to claim 5, characterized in that: A plurality of movable adjustment beads and threaded columns are respectively spaced around the central through hole.

7. The tool swing detector for a machine tool according to claim 6, characterized in that: Every two adjacent movable adjustment beads are arranged at equal intervals.

8. The tool swing detector for a machine tool according to claim 3, characterized in that: The supporting bearings are provided in a plurality, and the plurality of supporting bearings are arranged in the housing at intervals to match different types of objects to be measured.

9. A tool swing detection method, using the tool swing detector of a machine tool according to any one of claims 1 to 8 to perform tool swing detection on a detected object, characterized in that: The steps include: S1, loosen the multiple threaded columns of the knife swing calibration adjustment unit respectively to ensure that each movable adjustment bead of the knife swing calibration adjustment unit has a sufficient range of movement; S2, inserting the inspection rod for tool swing calibration into the tool swing detector, and passing through the inner ring of the support bearing and the central through hole of the mounting member of the tool swing calibration adjustment unit in sequence, and forming a rotatable arrangement; S3, rotating each threaded column of the tool swing calibration adjustment unit, and driving the corresponding movable adjustment bead to move accordingly through the screw connection between each threaded column and the mounting piece, thereby adjusting the protrusion amount of the corresponding movable adjustment bead protruding from the mounting through hole of the mounting piece, until each movable adjustment bead abuts against the outer peripheral surface of the inspection rod, then abuts the pointer of the micrometer against the inspection rod, and drives the inspection rod to rotate; the rotational runout value of the inspection rod is identified through the runout value feedback of the micrometer, and the protrusion amount of each movable adjustment bead is fine-tuned again until the runout value of the micrometer is within the qualified range, that is, the coaxial runout accuracy of the inspection rod is ensured to be within the qualified range; S4, remove the inspection rod from the tool swing detector, then insert the tool holder of the machine tool into the tool swing detector, and make the pointer of the micrometer abut against the tool rod of the tool holder, and drive the tool holder to rotate, and then determine whether the coaxial runout accuracy of the tool holder is qualified through the runout value of the micrometer.

10. The tool swing detection method according to claim 9, characterized in that: A support shaft coaxial with the inner ring hole of the support bearing is arranged in the housing of the knife swing detector, and the support shaft is used for rotation support of the inspection rod or the knife handle.

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