A check block and a check method for numerical control machining tool travel

Abstract

The application relates to the technical field of numerical control machining, and discloses a check block for tool feeding in numerical control machining and a tool feeding checking method. The check block comprises a cathode piece, a shell and an anode core. The anode core is insulatively installed on the cathode piece. The shell is detachably installed on the cathode piece and covers the anode core. A gap is arranged between the outer wall of the anode core and the inner wall of the shell. An alarm piece and a battery are installed in the cathode piece. The positive pole of the battery is connected with the anode core. The negative pole of the battery is connected with the cathode piece through the alarm piece. When the shell is deformed and contacts the anode core, the alarm piece gives an alarm. The check block has the beneficial effects that the shell is connected with the alarm piece through the cathode piece, and the anode core is insulatively installed on the cathode piece. When a verification program is run, if a cutter mills the shell, the shell is deformed and contacts the anode core, so that the circuit is connected, the alarm piece gives an alarm sound, the operator is reminded to find the error and take measures, and the parts are prevented from being scrapped due to the error machining.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of numerical control machining, in particular to a check block for numerical control machining and a tool path checking method. BACKGROUND

[0002] In the process of numerical control machining, the product quality safety of numerical control machining is very important, especially for the machining of high-value parts, and the check block is used to verify the correctness of the tool and coordinates after the tool and parts are installed and the machining coordinates are set before the machining of the parts starts, such as the Chinese invention patent (publication number: CN102922026A, name: a numerical control machining tool checking device). When the verification program is running, the numerical control tool respectively mills a tool around the top surface, inclined surface and side surface of the check block. If none of them is milled, it proves that the coordinates and the tool are correct, and the parts can be machined. If a part of the check block is milled, it may be that the X, Y, Z coordinates are incorrect or the diameter, length compensation and tool tip R of the tool are incorrect, and the error needs to be corrected and a new check block is replaced, and the verification program is run again. After the parts are machined, the parts are machined. However, in actual machining, the operator mills the check block after running the verification program, but due to the operator's careless inspection, the operator fails to find the slight milling damage or forgets to check, and directly runs the program to machine the parts, resulting in the parts being scrapped. SUMMARY

[0003] The purpose of the present application is to provide a check block for numerical control machining and a tool path checking method to overcome the shortcomings of the prior art.

[0004] The purpose of the present application is achieved by the following technical scheme: a check block for numerical control machining, comprising a cathode piece, a shell and an anode core, the cathode piece, the shell and the anode core are all made of conductive material, the anode core is insulated and installed on the cathode piece, the shell is detachably installed on the cathode piece and covers the anode core, a gap is provided between the outer wall of the anode core and the inner wall of the shell, an alarm piece and a battery are installed in the cathode piece, the positive electrode of the battery is connected with the anode core through a positive electrode wire, and the negative electrode of the battery is connected with the cathode piece through a wire on the alarm piece. When the shell is deformed and contacts the anode core, the alarm piece gives an alarm.

[0005] Preferably, the cathode member comprises a base, a cathode core and an insulating cylinder, a mounting cavity is formed in the sidewall of the base, the alarm member and the battery are both mounted in the mounting cavity, an installation hole is formed in the top of the base and communicates with the mounting cavity, one end of the cathode core is clamped in the installation hole, threads are arranged on the inner walls of both ends of the insulating cylinder, a first external thread is arranged on one end of the anode core, a second external thread is arranged on the outer wall of the end of the cathode core away from the installation hole, limiting shoulders are arranged on the anode core and the cathode core, the anode core and the cathode core are respectively screwed on both ends of the insulating cylinder through the limiting shoulders, a gap is arranged between the anode core and the cathode core, a wire hole is formed in the cathode core along the axis of the insulating cylinder, the anode core is connected with the positive electrode of the battery through the positive electrode wire passing through the wire hole, and the negative electrode of the battery is connected with the cathode core through the wire on the alarm member.

[0006] Preferably, the cathode member comprises a base, a cathode core and an insulating cylinder, a mounting cavity is formed in the sidewall of the base, the alarm member and the battery are both mounted in the mounting cavity, an installation hole is formed in the top of the base and communicates with the mounting cavity, one end of the cathode core is clamped in the installation hole, threads are arranged on the inner walls of both ends of the insulating cylinder, a first external thread is arranged on one end of the anode core, a second external thread is arranged on the outer wall of the end of the cathode core away from the installation hole, limiting shoulders are arranged on the anode core and the cathode core, the anode core and the cathode core are respectively screwed on both ends of the insulating cylinder through the limiting shoulders, a gap is arranged between the anode core and the cathode core, a wire hole is formed in the cathode core along the axis of the insulating cylinder, the anode core is connected with the positive electrode of the battery through the positive electrode wire passing through the wire hole, and the negative electrode of the battery is connected with the cathode core through the wire on the alarm member.

[0007] Preferably, a cover plate is detachably mounted on the port of the mounting cavity, a first sealing groove closed at both ends is formed in the port of the mounting cavity, and a first sealing ring is mounted in the first sealing groove and attached to the cover plate.

[0008] Preferably, a second sealing groove closed at both ends is formed in the port of the shell, and a second sealing ring is mounted in the second sealing groove and attached to the base.

[0009] Preferably, a positioning column is arranged at the bottom of the base, and the insulating cylinder is coaxial with the positioning column.

[0010] Preferably, a pair of notches are arranged on the side wall of the base below the mounting cavity, and the notches are respectively arranged on the two sides of the insulating cylinder body, and a through groove is arranged on the inner wall of the mounting cavity away from the notches, the through groove is in U shape, and the port of the U shape is arranged on the side wall of the base.

[0011] A verification method of a verification block for numerical control machining tool feeding, comprising the following steps:

[0012] Step one, installation of the verification block: first fix the cathode part on the verification position of the workbench, then install the anode core and the shell on the cathode part in sequence, and the shell covers the anode core, and then run the verification program;

[0013] Step two, if the verification block does not give an alarm during the verification process, it proves that the coordinates and the tool are correct, and the machining program can be started to process the part, and the verification is completed; if the verification block gives an alarm, the milling damage of the shell needs to be carefully checked, the error is found out, the shell or the anode core is replaced, and then the verification program is run again until the verification block does not give an alarm during the verification.

[0014] Compared with the prior art, the beneficial effects of the present application are:

[0015] The shell is connected with the alarm part through the cathode part, and the anode core is insulated and installed on the cathode part, when the tool mills the shell during the running of the verification program, the shell is deformed and contacts the anode core at this time, so as to connect the circuit, the alarm part gives an alarm sound, reminding the operator to find out the error and take measures, and avoiding the part from being scrapped due to the error machining. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The figure is a structural schematic diagram of the present application;

[0017] Figure 2 The figure is a structural schematic diagram of the present application; Figure 1 The figure is a sectional view of A-A;

[0018] Figure 3 The figure is a circuit structure schematic diagram of the alarm part;

[0019] In the figure, 1 is a shell, 2 is an anode core, 3 is a battery, 4 is a base, 5 is a cathode core, 6 is an insulating cylinder body, 7 is a mounting cavity, 8 is a wire hole, 9 is a limiting ring, 10 is a cover plate, 11 is a first sealing ring, 12 is a second sealing ring, 13 is a positioning column, 14 is a notch, and 15 is a through groove. DETAILED DESCRIPTION

[0020] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some but not all of the embodiments of the present application. Generally, the components of the embodiments of the present application described and shown in the accompanying drawings can be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0022] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0023] It should be noted that: similar reference numerals and letters in the following drawings represent similar items, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0024] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly placed when the product of the present application is used, or the orientation or positional relationship commonly understood by those skilled in the art, and are only for the convenience of describing the present application and simplifying the description, and are not intended to indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" and the like are only used to distinguish description, and cannot be understood as indicating or implying relative importance.

[0025] In the description of the present application, it should also be noted that, unless otherwise explicitly specified and limited, the terms "arrangement", "installation", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication inside two elements. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0026] As Figure 1As shown, a kind of verification block for numerical control machining tool walking, including cathode piece, shell 1 and anode core 2, cathode piece, shell 1 and anode core 2 are made of conductive material, preferably made of aluminum, low hardness easy deformation, anode core 2 is insulated and installed on cathode piece, shell 1 can be detachably installed on cathode piece and cover anode core 2, gap is set between the outer wall of anode core 2 and the inner wall of shell 1, alarm piece and battery 3 are installed in cathode piece, the positive pole of battery 3 is connected with anode core 2 by positive pole wire, the negative pole of battery 3 is connected with cathode piece by the wire on alarm piece, when shell 1 is deformed and contacts anode core 2, alarm piece sends alarm, shell 1 is connected with alarm piece by cathode piece, while anode core 2 is insulated and installed on cathode piece, when running verification program, if tool mills shell 1, shell 1 is deformed and contacts anode core 2 at this time, so as to connect circuit, alarm piece sends alarm sound, reminds operator to find out error and take measures, avoid that the part is scrapped due to error processing.

[0027] In the present embodiment, as Figure 1 and 2As shown, the cathode member includes a base 4, a cathode core 5, and an insulating cylinder 6, the cathode core 5, the anode core 2, and the shell 1 are all rotary bodies, and the distance between the anode core 2 and the inner wall of the shell 1 is not greater than 0.05 mm, the insulating cylinder 6 is made of nylon or hard plastic, the side wall of the base 4 is provided with a mounting cavity 7, the alarm member and the battery 3 are both mounted in the mounting cavity 7, the top of the base 4 is provided with a mounting hole in communication with the mounting cavity 7, one end of the cathode core 5 is clamped in the mounting hole, the inner walls of the two ends of the insulating cylinder 6 are both provided with threads, one end of the anode core 2 is provided with a first external thread, the outer wall of the end of the cathode core 5 away from the mounting hole is provided with a second external thread, the anode core 2 and the cathode core 5 are both provided with a limiting shoulder, the anode core 2 and the cathode core 5 are respectively screwed at the two ends of the insulating cylinder 6 through the limiting shoulder, and a gap is arranged between the anode core 2 and the cathode core 5, since the anode core 2 needs to be insulated and mounted on the cathode member, the anode core 2 and the cathode member need to be separately machined and then assembled, but the split type machining cannot guarantee the overall size after assembly, the actual size of some parts after assembly is greater than the installation size, and the actual size of the corresponding part is less than the installation size, and after the shell 1 is installed, the gaps at all places cannot be guaranteed to be equal, and the shell 1 is made of aluminum (to ensure that the tool is easy to deform after contacting the shell 1 and contacts the anode core 2 to issue an alarm), which will produce a slight deformation during installation, one is that the actual size of the anode core 2 is greater than the installation size, which will cause contact, thereby issuing a false alarm, two is that during the verification stage, the actual size of the anode core 2 is less than the installation size, which cannot contact the anode core 2, thereby causing the alarm and warning functions to fail, therefore, the anode core 2, the insulating cylinder 6, and the cathode core 5 are all left with a margin during rough machining and are assembled through threaded connection between each other, and then are finished, thereby ensuring that the actual size of the anode core 2 after assembly is consistent with the installation size, thereby avoiding the slight deformation of the shell 1 during installation to cause false alarms, or no alarm during the verification stage, the cathode core 5 is provided with a wire hole 8 along the axis of the insulating cylinder 6, the positive wire passes through the wire hole 8 to connect the anode core 2 and the positive electrode of the battery 3, the negative electrode of the battery 3 is connected with the cathode core 5 through the wire on the alarm member, the alarm member is composed of a single-chip microcomputer and a buzzer (the circuit structure is shown in Figure 3 ).

[0028] In the embodiment, as Figure 2As shown, the limiting ring 9 is arranged on the cathode core 5 outside the insulating cylinder 6, the limiting ring 9 is close to the insulating cylinder 6, the third thread is arranged between the insulating cylinder 6 and the limiting ring 9, the inner cavity of the shell 1 is provided with an inner thread, the limiting ring 9 is clamped on the port of the mounting hole, and the cathode core 5 is screwed on the port of the shell 1 through the limiting ring 9, a wire hole 8 is arranged on the cathode core 5 along the axis of the insulating cylinder 6, the positive wire passes through the wire hole 8 to connect the anode core 2 and the positive electrode of the battery 3, the negative electrode of the battery 3 is connected with the cathode core 5 through the wire on the alarm part, and the limiting ring 9 ensures quick and accurate installation, avoids excessive screwing into the anode core 2, and avoids the top of the anode core 2 contacting the inner top of the shell 1, causing continuous alarm or not being screwed into the anode core 2, and the top of the shell 1 contacts the cutter and deforms, and still does not alarm.

[0029] In the embodiment, as shown in Figure 1 and 2 , a cover plate 10 is detachably arranged on the port of the mounting cavity 7, and a first sealing groove closed at both ends is arranged on the port of the mounting cavity 7, and a first sealing ring 11 is arranged in the first sealing groove, the first sealing ring 11 is attached to the cover plate 10, the risk of milling fluid entering the mounting cavity 7 is reduced, and the risk of corrosion of the internal parts of the mounting cavity 7 is reduced.

[0030] In the embodiment, as shown in Figure 1 and 2 , a second sealing groove closed at both ends is arranged on the port of the shell 1, and a second sealing ring 12 is arranged in the second sealing groove, the second sealing ring 12 is attached to the base 4, and preferably the threaded connection between the clamping end of the anode core 2 and the mounting hole is used to pressurize the second sealing ring 12, enhance the sealing performance, reduce the risk of milling fluid entering the inside of the shell 1, and reduce the risk of the milling fluid connecting the anode core 2 and the cathode core 5 to cause false alarm.

[0031] In the embodiment, as shown in Figure 1 and 2 , the bottom of the base 4 is provided with a positioning column 13, the insulating cylinder 6 and the positioning column 13 have the same axis, and the positioning column 13 is used for positioning when it is installed on the workbench to ensure quick installation.

[0032] In the embodiment, as shown in Figure 1 , a pair of notches 14 are arranged on the side wall of the base 4 below the mounting cavity 7, the pair of notches 14 are respectively arranged on both sides of the insulating cylinder 6, a through groove 15 is arranged on the inner wall of the notch 14 away from the mounting cavity 7, the through groove 15 is U-shaped and the port of the U-shaped is on the side wall of the base 4, the cooperation of the bolt and the nut can firmly install the base 4 on the workbench, and the risk of displacement is reduced.

[0033] A verification method of a verification block for numerical control machining, comprising the following steps:

[0034] Step one, check the installation of the block: first fix the cathode piece on the workbench on the check position, and then install the anode core and shell on the cathode piece in turn, and the shell covers the anode core, and then run the check program;

[0035] Step two, if the check block does not issue an alarm during the check process, it proves that the coordinates and the tool are correct, and the machining program can be started for part machining, and the check is completed; if the check block issues an alarm, the milling damage of the shell needs to be carefully checked, the error is found out, and then the shell or the anode core is replaced, and then the check program is run again until the check block does not issue an alarm during the check. Since the alarm sound will be issued when milling, the verification block prevents the part from being scrapped to a greater extent than the traditional verification block, and when the verification block is milled, only the shell or the anode core needs to be replaced, thereby saving the cost.

[0036] Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can modify the technical solutions recorded in the foregoing embodiments or make equivalent replacements for part of the technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A check block for use in numerical control machining of a tool path, characterized by: The utility model provides a kind of alarm device, including cathode piece, shell (1) and anode core (2), the cathode piece, the shell (1) and the anode core (2) are made of electrically conductive material, the anode core (2) is insulatedly installed on the cathode piece, the shell (1) is detachably installed on the cathode piece and covers the anode core (2), gap is provided between the outer wall of the anode core (2) and the inner wall of the shell (1), alarm piece and battery (3) are installed in the cathode piece, the positive pole of the battery (3) is connected with the anode core (2) by positive pole wire, the negative pole of the battery (3) is connected with the cathode piece by the wire on the alarm piece, when the shell (1) is deformed and contacted with the anode core (2), the alarm piece issues warning; The cathode piece includes base (4), cathode core (5) and insulating cylinder (6), the side wall of the base (4) is provided with mounting cavity (7), the alarm piece and the battery (3) are installed in the mounting cavity (7), the top of the base (4) is provided with mounting hole communicated with the mounting cavity (7), one end of the cathode core (5) is clamped in the mounting hole, the inner wall of both ends of the insulating cylinder (6) is provided with screw thread, one end of the anode core (2) is provided with first external thread, the outer wall of the end of the cathode core (5) away from the mounting hole is provided with second external thread, the anode core (2) and the cathode core (5) are provided with limiting shoulder, the anode core (2) and the cathode core (5) are respectively screwed in both ends of the insulating cylinder (6) by the limiting shoulder, and gap is provided between the anode core (2) and the cathode core (5), wire hole (8) is provided on the cathode core (5) along the axis of the insulating cylinder (6), the positive pole of the battery (3) is connected with the anode core (2) by the positive pole wire passing through the wire hole (8), and the negative pole of the battery (3) is connected with the cathode core by the wire on the alarm piece; The limiting ring (9) and the third external thread are provided on the cathode core (5) outside the insulating cylinder (6), the limiting ring (9) is close to the insulating cylinder (6), the third external thread is located between the insulating cylinder (6) and the limiting ring (9), the inner cavity of the shell (1) is provided with internal thread, the limiting ring (9) is clamped on the port of the mounting hole, and the cathode core (5) is screwed on the port of the shell (1) by the limiting ring (9).

2. A check block for use in numerical control machining of a workpiece according to claim 1, wherein: The port of the mounting cavity (7) is detachably provided with cover plate (10), and the port of the mounting cavity (7) is also provided with first sealing groove closed at both ends, the first sealing groove is provided with first sealing ring (11), and the first sealing ring (11) is attached to the cover plate (10).

3. A check block for use in numerical control machining of a workpiece according to claim 1, wherein: The port of the shell (1) is provided with second sealing groove closed at both ends, the second sealing groove is provided with second sealing ring (12), and the second sealing ring (12) is attached to the base (4).

4. The check block for tool path of numerical control machining according to claim 1, characterized in that: The bottom of the base (4) is provided with a positioning column (13), and the insulating cylinder (6) is coaxial with the positioning column (13).

5. The check block for tool path of numerical control machining according to claim 1, characterized in that: A pair of notches (14) are formed in the sidewall of the base (4) below the mounting cavity (7), and the notches (14) are respectively located at two sides of the insulating cylinder (6). A through groove (15) is formed in the inner wall of the notches (14) away from the mounting cavity (7), and the through groove (15) is in a U shape with the port of the U shape located on the sidewall of the base (4).

6. The verification method for the verification block used in CNC machining as described in claim 1, characterized in that, The method comprises the following steps: Step one, check the installation of the block: first fix the cathode part in the check position on the workbench, then install the anode core and shell on the cathode part in turn, and the shell covers the anode core, and then run the check program; Step two, if the check block does not issue an alarm during the check process, it proves that the coordinates and the tool are correct, and the machining program can be started for part machining, and the check is completed; if the check block issues an alarm, the milling damage of the shell needs to be carefully checked, the error is found out, the shell or the anode core is replaced, and then the check program is run again until the check block does not issue an alarm during the check.

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