Tool setting gauge suitable for numerically-controlled lathe and use method of tool setting gauge

Abstract

The invention provides a tool setting gauge for a numerical control lathe and a using method thereof, relates to the field of mechanical cutting machining, and can improve the tool setting efficiency of the numerical control lathe and reduce the risk of tool setting operation. According to the tool setting gauge, the real-time state of the tool setting gauge is monitored by adopting a spatial position sensor and a gravity acceleration sensor, the real-time position of a target surface is calculated by applying a computer technology, and a result is output; the device is mainly composed of a base body shaft sleeve, a moving frame, a blocking sleeve, a hemisphere, a hemisphere base, a measuring rod, a measuring plate, a position sensor, a gravity acceleration sensor, an electronic calculation part, a warning indicator, a spring and the like. When the tool setting gauge is used, the tool setting gauge is installed on a lathe and rotates by a circle with the actual use axis as the center, and the electronic calculation component calculates the difference value between the design axis and the actual use axis; then the tool nose is moved to make contact with the target face and drive the measuring rod to move, the electronic calculation part monitors the real-time position of the target face, when the target position is reached, the warning indicator gives out a warning, and the position of the turning tool can be accurately measured.

Description

Technical Field

[0001] The invention relates to the field of mechanical processing, in particular to the field of processing and production using a digital controlled lathe. Background Art

[0002] With the continuous upgrading and transformation of my country's manufacturing industry, it has entered the era of fully automated production. In the field of mechanical cutting processing, the penetration rate of digital control equipment has been very high. In the actual application of digital control machine tools for processing and production, it is usually necessary to set the exact position of the processing parts and specific tools in the machine tool first, which is often called machine setting work. Some digital control machine tools have built-in tool setting devices, which makes it very convenient and quick to set the exact position of the tool. However, a large number of digital control machine tools do not have built-in tool setting devices. In the actual production process, the vast number of craftsmen have also created a variety of tool setting tools and methods of use. Specifically, when it comes to the application of digital control lathes for processing and production, in the absence of built-in tool setting devices, the method of setting the exact position of the tool is basically a three-step process of trial run, measurement, and setting, which is inefficient and has certain risks in operation.

[0003] In recent years, independent tool setting instruments suitable for use in digital control lathes have appeared on the market. They use contact triggering, which has two major disadvantages: one is low accuracy, and the other is that they cannot trigger non-metallic insulating tool tips such as cubic boron carbide.

[0004] The tool setting instrument suitable for digital controlled lathe and the using method thereof provided by the present invention are proposed to effectively solve the above-mentioned problems. Summary of the invention

[0005] The present invention provides a tool setting instrument suitable for a digital control lathe and a method for using the tool setting instrument, which can improve the efficiency of setting up the digital control lathe and reduce the danger of setting up operation, and adopts the following technical measures.

[0006] The present invention provides a tool setting instrument suitable for a digital control lathe, which is based on a design use plane H and a design use axis G, wherein the design use axis G is on the design use plane H.

[0007] The structure includes a base sleeve, a movable bracket, a hemisphere, a hemisphere seat sleeve, a measuring rod, a measuring plate, a measuring plate screw, a tail plug sleeve, an electronic base, a pull rod screw, a pull rod nut, a limit rod, a spring, a locking nut sleeve, a limit plate one, a limit plate two, a head cover, a position alarm, an axial linear position sensor, a radial gravity acceleration sensor, an axial gravity acceleration sensor, electronic functional components, a clamping handle, a Z-axis limit column, a battery compartment, a battery, screws, a waterproof rubber sleeve, etc.

[0008] The axis of the base sleeve is the reference axis D, the hemispherical seat sleeve is fixed on the base sleeve, the spherical center of the hemispherical seat sleeve is on the reference axis D, and the hemisphere is installed in the hemispherical seat sleeve.

[0009] The measuring rod is fixed on the hemisphere, the hemisphere is provided with an end plane E perpendicular to the measuring rod, and the measuring rod is provided with a plurality of mutually parallel limiting planes.

[0010] The measuring plate is fixed on the measuring rod, and a cylindrical surface A and a cylindrical surface B are provided on the measuring plate.

[0011] The measuring plate screw is fixed on the measuring plate, and the measuring plate screw is provided with an end plane C which is perpendicular to the measuring rod.

[0012] The movable bracket is installed in the base shaft sleeve, and the outer cylindrical surface of the movable bracket and the inner cylindrical surface of the base shaft sleeve are precisely matched with each other in shaft and hole.

[0013] The movable bracket is provided with an end plane F which is perpendicular to the reference axis D.

[0014] The tail plug sleeve is locked and fixed on the base shaft sleeve by a locking nut sleeve.

[0015] The tail plug sleeve is provided with a pin shaft, and the movable bracket is provided with a pin groove. The pin shaft of the tail plug sleeve and the pin groove of the movable bracket are precision shaft and groove matching.

[0016] The movable bracket has one degree of freedom under the restriction of the base shaft sleeve and the tail plug sleeve: linear movement along the reference axis D.

[0017] The limiting plate 1 and the limiting plate 2 are fixed on the hemispherical seat sleeve by screws. The limiting plane of the limiting plate 1 is precisely fitted with the first limiting plane of the measuring rod, and the limiting plane of the limiting plate 2 is precisely fitted with the second limiting plane of the measuring rod.

[0018] The measuring rod has three degrees of freedom in the plane under the restriction of limiting plate 1 and limiting plate 2: rotation in the plane, movement along the X direction of the plane and movement along the Y direction of the plane.

[0019] The limiting rod is fixed on the tail plug sleeve, and the spring is installed on the limiting rod. One end of the spring presses on the tail plug sleeve, and the other end presses on the moving bracket.

[0020] Under the action of the spring, the end plane F of the movable bracket and the end plane E of the hemisphere are precisely fitted, and the outer spherical surface of the hemisphere and the inner spherical surface of the hemisphere seat sleeve are precisely fitted. This state is the natural state: the positions of various components are relatively fixed, the measuring rod and the reference axis D are coaxial, the end plane C of the measuring plate screw is perpendicular to the reference axis D, and the spherical center of the hemisphere is on the reference axis D.

[0021] When the measuring rod is driven by external force to move the hemisphere to overcome the spring force and produce a position change, the position of the movable bracket also changes accordingly. This state is an unnatural state.

[0022] After the external force on the measuring rod disappears, each component returns to its natural state under the action of the spring.

[0023] The electronic base is locked and fixed on the tail plug sleeve by a tie rod screw and a tie rod nut, and the electronic functional component is fixed on the electronic base.

[0024] The radial gravity acceleration sensor and the axial gravity acceleration sensor are fixed on the electronic base.

[0025] The radial gravity acceleration sensor is designed to monitor the horizontal inclination angle of plane H in the X direction of the machine tool in real time, and the axial gravity acceleration sensor is designed to monitor the horizontal inclination angle of axis G in the Z direction of the machine tool in real time.

[0026] One side of the axial linear position sensor is fixed on the electronic base, and the other side is fixed on the moving bracket.

[0027] As a first choice, a linear displacement sensor is used as the axial linear position sensor.

[0028] As an alternative, a proximity position detection switch may be used as the axial linear position sensor.

[0029] The measuring plate is provided with a cylindrical surface A and a cylindrical surface B. The cylindrical surface A moves toward its target direction under the action of an external force, and drives the axial linear position sensor at the same time, or the cylindrical surface B moves toward its target direction under the action of an external force, and drives the axial linear position sensor at the same time.

[0030] The electronic functional component integrates the real-time position of the axial linear position sensor, the monitoring result of the radial gravity acceleration sensor and the monitoring result of the axial gravity acceleration sensor to calculate the real-time position of the cylindrical surface A, the cylindrical surface B or the end plane C.

[0031] When the cylindrical surface A or the cylindrical surface B is in a coaxial position with the design axis G, the position alarm will issue a position alarm in real time.

[0032] The Z-axis limit column is fixed on the clamping handle or the adapter frame, and its relative position to the base sleeve is fixed. When in use, its end face fits with a fixed position of the machine tool.

[0033] The measuring plate screw is provided with an end plane C perpendicular to the measuring rod. The end plane C moves toward its designed target direction under the action of external force, and at the same time drives the axial linear position sensor.

[0034] The electronic functional component integrates the real-time position of the axial linear position sensor, the monitoring results of the radial gravity acceleration sensor and the monitoring results of the axial gravity acceleration sensor to calculate the real-time position of the end plane C. When the end plane C is at the designed target position, the position alarm issues a position alarm in real time.

[0035] The head cover is fixed to one end of the base shaft sleeve, and the position alarm is installed in the head cover, which can wirelessly output position information and emit sound and light alarms.

[0036] The clamping handle is fixed to the other end of the base sleeve to provide a clamping position.

[0037] When in use, the tool setting probe is installed on the machine tool and rotates one circle with the actual axis as the center. The electronic functional components calculate the difference between the design axis G and the actual axis. If it exceeds the target range, it will continuously issue an alarm for improper use.

[0038] Reinstall and adjust, and rotate it around the actual use axis for one circle again, until the electronic functional component calculates that the difference between the design use axis G and the actual use axis is within the target range, then it can enter the normal use state.

[0039] Under normal use, the tool tip is operated to contact the target surface and drive the measuring rod to move to complete the tool setting operation.

[0040] There are two situations in which the axis G is used in design: one is coaxial with the reference axis D, and the other is parallel to the reference axis D but not coaxial. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] For ease of explanation, the present invention is described in detail with reference to the following specific implementations and the accompanying drawings.

[0042] Figure 1 It is an isometric illustration of an embodiment of the present invention in which two axes are parallel but not coaxial.

[0043] Figure 2 This is a scenario diagram illustrating an option in which two axes are parallel but not coaxial in an embodiment of the present invention.

[0044] Figure 3 It is an isometric illustration of the two-axis coaxial option of an embodiment of the present invention.

[0045] Figure 4 This is a scenario diagram illustrating the two-axis coaxial option of an embodiment of the present invention.

[0046] Figure 5 It is a cross-sectional view of the tool setting instrument body according to an embodiment of the present invention.

[0047] Figure 6 It is an explanatory diagram of a mobile bracket according to an embodiment of the present invention.

[0048] Figure 7 1 is an explanatory diagram of a tail plug sleeve according to an embodiment of the present invention.

[0049] Figure 8 An explanatory diagram of an electronic base according to an embodiment of the present invention.

[0050] Fig. 9 An explanatory diagram of a measuring rod according to an embodiment of the present invention.

[0051] Fig.10 It is an explanatory diagram of a hemisphere according to an embodiment of the present invention.

[0052] Fig.11 1 is an explanatory diagram of a limiting plate according to an embodiment of the present invention.

[0053] Names in the attached drawings: 1 tool setting instrument body 2 adapter frame 3 Z axis limit column 4 Z axis limit block 5 base shaft sleeve 6 movable bracket 7 hemisphere 8 hemisphere seat sleeve 9 measuring rod 10 measuring plate 11 measuring plate screw 12 tail plug sleeve 13 electronic base 14 locking nut sleeve 15 clamping handle 16 battery 17 battery cover 18 limit plate 19 head cover 20 waterproof rubber sleeve 21 decorative ring Example

[0054] Embodiment 1: Two axes are parallel but not coaxial.

[0055] like Figures 1 to 11 As shown, an embodiment of the present invention provides a tool setting instrument suitable for use in a digital control lathe, and the specific implementation adopts the following technical solution.

[0056] The structure includes a base sleeve, a movable bracket, a hemisphere, a hemisphere seat sleeve, a measuring rod, a measuring plate, a measuring plate screw, a tail plug sleeve, an electronic base, a pull rod screw, a pull rod nut, a limit rod, a spring, a locking nut sleeve, a limit plate one, a limit plate two, a head cover, a position alarm, an axial linear position sensor, a radial gravity acceleration sensor, an axial gravity acceleration sensor, electronic functional components, a clamping handle, a Z-axis limit column, an adapter frame, a battery compartment, batteries, screws, a waterproof rubber sleeve, etc.

[0057] The axis of the base sleeve is the reference axis D, the hemispherical seat sleeve is fixed on the base sleeve, the spherical center of the hemispherical seat sleeve is on the reference axis D, and the hemisphere is installed in the hemispherical seat sleeve.

[0058] The measuring rod is fixed on the hemisphere, the hemisphere is provided with an end plane E perpendicular to the measuring rod, and the measuring rod is provided with a plurality of mutually parallel limiting planes.

[0059] The measuring plate is fixed on the measuring rod, and a cylindrical surface A and a cylindrical surface B are provided on the measuring plate.

[0060] The measuring plate screw is fixed on the measuring plate, and the measuring plate screw is provided with an end plane C which is perpendicular to the measuring rod.

[0061] The movable bracket is installed in the base shaft sleeve, and the outer cylindrical surface of the movable bracket and the inner cylindrical surface of the base shaft sleeve are precisely matched with each other in shaft and hole.

[0062] The movable bracket is provided with an end plane F which is perpendicular to the reference axis D.

[0063] The tail plug sleeve is locked and fixed on the base shaft sleeve by a locking nut sleeve.

[0064] The tail plug sleeve is provided with a pin shaft, and the movable bracket is provided with a pin groove. The pin shaft of the tail plug sleeve and the pin groove of the movable bracket are precision shaft and groove matching.

[0065] The movable bracket has one degree of freedom under the restriction of the base shaft sleeve and the tail plug sleeve: linear movement along the reference axis D.

[0066] The limiting plate 1 and the limiting plate 2 are fixed on the hemispherical seat sleeve by screws. The limiting plane of the limiting plate 1 is precisely fitted with the first limiting plane of the measuring rod, and the limiting plane of the limiting plate 2 is precisely fitted with the second limiting plane of the measuring rod.

[0067] The measuring rod has three degrees of freedom in the plane under the restriction of limiting plate 1 and limiting plate 2: rotation in the plane, movement along the X direction of the plane and movement along the Y direction of the plane.

[0068] The limiting rod is fixed on the tail plug sleeve, and the spring is installed on the limiting rod. One end of the spring presses on the tail plug sleeve, and the other end presses on the moving bracket.

[0069] Under the action of the spring, the end plane F of the movable bracket and the end plane E of the hemisphere are precisely fitted, and the outer spherical surface of the hemisphere and the inner spherical surface of the hemisphere seat sleeve are precisely fitted. This state is the natural state: the positions of various components are relatively fixed, the measuring rod and the reference axis D are coaxial, the end plane C of the measuring plate screw is perpendicular to the reference axis D, and the spherical center of the hemisphere is on the reference axis D.

[0070] When the measuring rod is driven by external force to move the hemisphere to overcome the spring force and produce a position change, the position of the movable bracket also changes accordingly. This state is an unnatural state.

[0071] After the external force on the measuring rod disappears, each component returns to its natural state under the action of the spring.

[0072] The electronic base is locked and fixed on the tail plug sleeve by a tie rod screw and a tie rod nut, and the electronic functional component is fixed on the electronic base.

[0073] The radial gravity acceleration sensor and the axial gravity acceleration sensor are fixed on the electronic base.

[0074] The radial gravity acceleration sensor is designed to monitor the horizontal inclination angle of plane H in the X direction of the machine tool in real time, and the axial gravity acceleration sensor is designed to monitor the horizontal inclination angle of axis G in the Z direction of the machine tool in real time.

[0075] A capacitive grid linear displacement sensor is used as an axial linear position sensor, the emitter of which is fixed on an electronic base, and the reflector is fixed on a movable bracket.

[0076] The measuring plate is provided with a cylindrical surface A and a cylindrical surface B. The cylindrical surface A moves toward its target direction under the action of an external force, and drives the axial linear position sensor at the same time, or the cylindrical surface B moves toward its target direction under the action of an external force, and drives the axial linear position sensor at the same time.

[0077] The electronic functional component integrates the real-time position of the axial linear position sensor, the monitoring result of the radial gravity acceleration sensor and the monitoring result of the axial gravity acceleration sensor to calculate the real-time position of the cylindrical surface A, the cylindrical surface B or the end plane C.

[0078] When the cylindrical surface A or the cylindrical surface B is in a coaxial position with the design axis G, the position alarm will issue a position alarm in real time.

[0079] The Z-axis limit column is fixed on the adapter frame, and the adapter frame is fixed on the clamping handle. When in use, the end face of the Z-axis limit column fits with a fixed position of the machine tool.

[0080] The measuring plate screw is provided with an end plane C perpendicular to the measuring rod. The end plane C moves toward its designed target direction under the action of external force, and at the same time drives the axial linear position sensor.

[0081] The electronic functional component integrates the real-time position of the axial linear position sensor, the monitoring results of the radial gravity acceleration sensor and the monitoring results of the axial gravity acceleration sensor to calculate the real-time position of the end plane C. When the end plane C is at the designed target position, the position alarm issues a position alarm in real time.

[0082] The head cover is fixed to one end of the base shaft sleeve, and the position alarm is installed in the head cover, which can wirelessly output position information and emit sound and light alarms.

[0083] When in use, the tool setting probe is installed on the machine tool and rotates one circle with the actual axis as the center. The electronic functional components calculate the difference between the design axis G and the actual axis. If it exceeds the target range, it will continuously issue an alarm for improper use.

[0084] Reinstall and adjust, and rotate it around the actual use axis for one circle again, until the electronic functional component calculates that the difference between the design use axis G and the actual use axis is within the target range, then it can enter the normal use state.

[0085] Under normal use, the tool tip is operated to contact the target surface and drive the measuring rod to move to complete the tool setting operation.

[0086] Embodiment 2: Two axis coaxial option.

[0087] like Figures 1 to 11 As shown, an embodiment of the present invention provides a tool setting instrument suitable for use in a digital control lathe, and the specific implementation adopts the following technical solution.

[0088] The structure includes a base sleeve, a movable bracket, a hemisphere, a hemisphere seat sleeve, a measuring rod, a measuring plate, a measuring plate screw, a tail plug sleeve, an electronic base, a pull rod screw, a pull rod nut, a limit rod, a spring, a locking nut sleeve, a limit plate one, a limit plate two, a head cover, a position alarm, an axial linear position sensor, a radial gravity acceleration sensor, an axial gravity acceleration sensor, electronic functional components, a clamping handle, a Z-axis limit block, a battery compartment, batteries, screws, a waterproof rubber sleeve, etc.

[0089] The axis of the base sleeve is the reference axis D, the hemispherical seat sleeve is fixed on the base sleeve, the spherical center of the hemispherical seat sleeve is on the reference axis D, and the hemisphere is installed in the hemispherical seat sleeve.

[0090] The measuring rod is fixed on the hemisphere, the hemisphere is provided with an end plane E perpendicular to the measuring rod, and the measuring rod is provided with a plurality of mutually parallel limiting planes.

[0091] The measuring plate is fixed on the measuring rod, and a cylindrical surface A and a cylindrical surface B are provided on the measuring plate.

[0092] The measuring plate screw is fixed on the measuring plate, and the measuring plate screw is provided with an end plane C which is perpendicular to the measuring rod.

[0093] The movable bracket is installed in the base shaft sleeve, and the outer cylindrical surface of the movable bracket and the inner cylindrical surface of the base shaft sleeve are precisely matched with each other in shaft and hole.

[0094] The movable bracket is provided with an end plane F which is perpendicular to the reference axis D.

[0095] The tail plug sleeve is locked and fixed on the base shaft sleeve by a locking nut sleeve.

[0096] The tail plug sleeve is provided with a pin shaft, and the movable bracket is provided with a pin groove. The pin shaft of the tail plug sleeve and the pin groove of the movable bracket are precision shaft and groove matching.

[0097] The movable bracket has one degree of freedom under the restriction of the base shaft sleeve and the tail plug sleeve: linear movement along the reference axis D.

[0098] The limiting plate 1 and the limiting plate 2 are fixed on the hemispherical seat sleeve by screws. The limiting plane of the limiting plate 1 is precisely fitted with the first limiting plane of the measuring rod, and the limiting plane of the limiting plate 2 is precisely fitted with the second limiting plane of the measuring rod.

[0099] The measuring rod has three degrees of freedom in the plane under the restriction of limiting plate 1 and limiting plate 2: rotation in the plane, movement along the X direction of the plane and movement along the Y direction of the plane.

[0100] The limiting rod is fixed on the tail plug sleeve, and the spring is installed on the limiting rod. One end of the spring presses on the tail plug sleeve, and the other end presses on the moving bracket.

[0101] Under the action of the spring, the end plane F of the movable bracket and the end plane E of the hemisphere are precisely fitted, and the outer spherical surface of the hemisphere and the inner spherical surface of the hemisphere seat sleeve are precisely fitted. This state is the natural state: the positions of various components are relatively fixed, the measuring rod and the reference axis D are coaxial, the end plane C of the measuring plate screw is perpendicular to the reference axis D, and the spherical center of the hemisphere is on the reference axis D.

[0102] When the measuring rod is driven by external force to move the hemisphere to overcome the spring force and produce a position change, the position of the movable bracket also changes accordingly. This state is an unnatural state.

[0103] After the external force on the measuring rod disappears, each component returns to its natural state under the action of the spring.

[0104] The electronic base is locked and fixed on the tail plug sleeve by a tie rod screw and a tie rod nut, and the electronic functional component is fixed on the electronic base.

[0105] The radial gravity acceleration sensor and the axial gravity acceleration sensor are fixed on the electronic base.

[0106] The radial gravity acceleration sensor is designed to monitor the horizontal inclination angle of plane H in the X direction of the machine tool in real time, and the axial gravity acceleration sensor is designed to monitor the horizontal inclination angle of axis G in the Z direction of the machine tool in real time.

[0107] A capacitive grid linear displacement sensor is used as an axial linear position sensor, the emitter of which is fixed on an electronic base, and the reflector is fixed on a movable bracket.

[0108] The measuring plate is provided with a cylindrical surface A and a cylindrical surface B. The cylindrical surface A moves toward its target direction under the action of an external force, and drives the axial linear position sensor at the same time, or the cylindrical surface B moves toward its target direction under the action of an external force, and drives the axial linear position sensor at the same time.

[0109] The electronic functional component integrates the real-time position of the axial linear position sensor, the monitoring result of the radial gravity acceleration sensor and the monitoring result of the axial gravity acceleration sensor to calculate the real-time position of the cylindrical surface A, the cylindrical surface B or the end plane C.

[0110] When the cylindrical surface A or the cylindrical surface B is in a coaxial position with the design axis G, the position alarm will issue a position alarm in real time.

[0111] The Z-axis limit block is fixed on the clamping handle. When in use, the end face of the Z-axis limit block fits into a fixed position of the machine tool.

[0112] The measuring plate screw is provided with an end plane C perpendicular to the measuring rod. The end plane C moves toward its designed target direction under the action of external force, and at the same time drives the axial linear position sensor.

[0113] The electronic functional component integrates the real-time position of the axial linear position sensor, the monitoring results of the radial gravity acceleration sensor and the monitoring results of the axial gravity acceleration sensor to calculate the real-time position of the end plane C. When the end plane C is at the designed target position, the position alarm issues a position alarm in real time.

[0114] The head cover is fixed to one end of the base shaft sleeve, and the position alarm is installed in the head cover, which can wirelessly output position information and emit sound and light alarms.

[0115] When in use, the tool setting probe is installed on the machine tool and rotates one circle with the actual axis as the center. The electronic functional components calculate the difference between the design axis G and the actual axis. If it exceeds the target range, it will continuously issue an alarm for improper use.

[0116] Reinstall and adjust, and rotate it around the actual use axis for one circle again, until the electronic functional component calculates that the difference between the design use axis G and the actual use axis is within the target range, then it can enter the normal use state.

[0117] Under normal use, the tool tip is operated to contact the target surface and drive the measuring rod to move to complete the tool setting operation.

[0118] The beneficial effects of the technical measures adopted by the present invention include at least the following.

[0119] The present invention adopts sensors and electronic computing technology, has high measurement data accuracy, and has a simple and practical structure and is easy to implement.

[0120] The application of the present invention can improve the efficiency of setting up a digital controlled lathe and reduce the danger of setting up operation.

Claims

1. A tool setting instrument suitable for use on a digital controlled lathe, characterized in that: Based on the design plane H and the design axis G, the design axis G is on the design plane H; including a base sleeve, a movable bracket, a hemisphere, a hemisphere seat sleeve, a measuring rod, a measuring plate, a measuring plate screw, a tail plug sleeve, an electronic base, a tie rod screw, a tie rod nut, a limit rod, a spring, a locking nut sleeve, a limit plate 1, a limit plate 2, a head cover, a position alarm, an axial linear position sensor, a radial gravity acceleration sensor, an axial gravity acceleration sensor, an electronic functional component, and a clamping handle; The axis of the base sleeve is the reference axis D, the hemispherical sleeve is fixed on the base sleeve, the spherical center of the hemispherical sleeve is on the reference axis D, the hemisphere is installed in the hemispherical sleeve, the measuring rod is fixed on the hemisphere, the measuring plate is fixed on the measuring rod, and the measuring plate screw is fixed on the measuring plate; The hemisphere is provided with an end plane E perpendicular to the measuring rod, the measuring rod is provided with a plurality of mutually parallel limiting planes, the measuring plate is provided with a cylindrical surface A and a cylindrical surface B, and the measuring plate screw is provided with an end plane C perpendicular to the measuring rod; The movable bracket is installed in the base sleeve, the outer cylindrical surface of the movable bracket and the inner cylindrical surface of the base sleeve are precisely matched with the shaft and hole, the movable bracket is provided with an end plane F perpendicular to the reference axis D, the tail plug sleeve is locked and fixed on the base sleeve by the locking nut sleeve, the tail plug sleeve is provided with a pin shaft, the movable bracket is provided with a pin groove, the pin shaft of the tail plug sleeve and the pin groove of the movable bracket are precisely matched with the shaft and groove, and the movable bracket has one degree of freedom under the restriction of the base sleeve and the tail plug sleeve: linear movement along the reference axis D; The limiting plate 1 and the limiting plate 2 are fixed on the hemispherical seat sleeve, the limiting plane of the limiting plate 1 is precisely fitted with the first limiting plane of the measuring rod, the limiting plane of the limiting plate 2 is precisely fitted with the second limiting plane of the measuring rod, and the measuring rod has three degrees of freedom of movement in the plane: rotation in the plane, movement along the plane X direction and movement along the plane Y direction; The limit rod is fixed on the tail plug sleeve, and the spring is installed on the limit rod. One end of the spring is pressed against the tail plug sleeve, and the other end is pressed against the movable bracket. Under the action of the spring, the end plane F of the movable bracket and the end plane E of the hemisphere are precisely fitted, and the outer spherical surface of the hemisphere and the inner spherical surface of the hemisphere seat sleeve are precisely fitted. This state is a natural state: the positions of various components are relatively fixed, the measuring rod and the reference axis D are coaxial, the end plane C of the measuring plate screw and the reference axis D are perpendicular, and the spherical center of the hemisphere is on the reference axis D; When the measuring rod is driven by an external force to move the hemisphere and change its position, the position of the movable bracket also changes accordingly, and this state is an unnatural state; After the external force on the measuring rod disappears, each component returns to a natural state under the action of the spring; The electronic base is fixed to the tail plug sleeve by the tie rod screw and the tie rod nut, the electronic functional component is fixed to the electronic base, the radial gravity acceleration sensor and the axial gravity acceleration sensor are fixed to the electronic base, one side of the axial linear position sensor is fixed to the electronic base, and the other side is fixed to the mobile bracket; The head cover is fixed to one end of the base sleeve, the clamping handle is fixed to the other end of the base sleeve, and the position alarm is installed in the head cover; There are two situations in which the axis G is used in design: one is coaxial with the reference axis D, and the other is parallel to the reference axis D but not coaxial.

2. The tool setting instrument suitable for a digital controlled lathe according to claim 1, characterized in that: The cylindrical surface A set on the measuring plate moves toward its designed target direction under the action of external force, and drives the axial linear position sensor at the same time, or the cylindrical surface B set on the measuring plate moves toward its designed target direction under the action of external force, and drives the axial linear position sensor at the same time; the electronic functional component monitors the real-time position of the cylindrical surface A or the cylindrical surface B, and when the cylindrical surface A or the cylindrical surface B is in a coaxial position with the designed use axis G, the position alarm device issues a position alarm in real time; The end plane C of the measuring plate screw moves toward its designed target direction under the action of external force, and at the same time drives the axial linear position sensor. The electronic functional component monitors the real-time position of the end plane C. When the end plane C is at the designed target position, the position alarm issues a position alarm in real time.

3. A tool setting instrument suitable for a digital controlled lathe according to claim 1 or claim 2, characterized in that: The radial gravity acceleration sensor is designed for real-time monitoring and uses the horizontal inclination angle of plane H in the X direction of the machine tool. The axial gravity acceleration sensor is designed for real-time monitoring and uses the horizontal inclination angle of axis G in the Z direction of the machine tool. The electronic functional component integrates the real-time position of the axial linear position sensor, the monitoring results of the radial gravity acceleration sensor and the monitoring results of the axial gravity acceleration sensor to calculate the real-time position of cylindrical surface A, cylindrical surface B or end plane C.

4. A method for using the tool setting instrument suitable for a digital controlled lathe as claimed in any one of claims 1 to 3, characterized in that: The tool setting instrument is installed on the machine tool and rotates one circle around the actual use axis. The electronic functional component calculates the difference between the design use axis G and the actual use axis. If it exceeds the target range, it will continuously issue an alarm that it cannot be used correctly. Reinstall and adjust, and rotate it one circle around the actual use axis again, until the electronic functional component calculates that the difference between the design use axis G and the actual use axis is within the target range before it can enter the normal use state.

5. A tool setting instrument suitable for use on a digital controlled lathe, characterized in that: Spatial position sensors and gravity acceleration sensors are used to monitor the difference between the design plane and the actual plane used, and the difference between the design axis and the actual axis used of the tool setting instrument. Computer technology is used to integrate the monitoring results to calculate the real-time status and position of the target object and output the results.

6. A method for using the tool setting instrument suitable for a digital controlled lathe as claimed in claim 5, characterized in that: The tool setting instrument is installed on the machine tool and rotates one circle with the actual use axis as the center. The computer technology is used to comprehensively monitor the results to calculate the difference between the design use plane and the actual use plane of the tool setting instrument, and the difference between the design use axis and the actual use axis. If it exceeds the target range, it will continuously issue an alarm that it cannot be used correctly; re- After installation and adjustment, rotate it around the actual axis of use for one circle again until the difference between the design use plane and the actual use plane, and the difference between the design use axis and the actual use axis of the tool setting instrument are calculated to be within the target range before it can enter normal use.

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