PCBN grooving tool grinding positioning device and grinding equipment

Abstract

The application provides a PCBN slotting cutter grinding positioning device and grinding equipment, and relates to the technical field of cutter grinding. A protruding part is formed on the first positioning surface, the second positioning surface is located on one side of the first positioning surface in the second direction, the pressing piece is hinged with the positioning member; the PCBN slotting cutter comprises a first abutting surface and a second abutting surface, the first abutting surface is provided with a first positioning groove, the first positioning groove extends in the second direction, the first abutting surface abuts against the first positioning surface, part of the positioning member extends into the first positioning groove, the second abutting surface abuts against the second positioning surface, and the fastening member applies force to the first end of the pressing piece, so that the second end of the pressing piece abuts against the side of the PCBN slotting cutter which is opposite to the first positioning surface in the first direction. The application can solve the problem that the stability of the existing positioning device for fixing the PCBN slotting cutter is relatively poor, which will affect the production efficiency and machining quality of the PCBN slotting cutter.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of cutter grinding, in particular to a PCBN slotting cutter grinding positioning device and a grinding equipment. BACKGROUND

[0002] Polycrystalline cubic boron nitride (PCBN) and its product production is an important branch of the superhard material industry. Since PCBN cutters were first introduced as cutting tool materials, they have gradually become the preferred tool for solving difficult-to-machine materials. They can be used to cut difficult-to-machine materials such as hardened steel, cast iron, high-temperature alloy and powder metallurgy materials. Today, PCBN cutters are gradually replacing traditional hard alloy cutters and ceramic cutters due to their high wear resistance, high corrosion resistance, high removal rate, high cost performance and other excellent characteristics, and are widely used in the black metal processing field of the automobile, aviation, shipbuilding and other industries.

[0003] Cutting and grooving is an important machining method in turning processing, and it has high requirements for cutters. In existing cutting and grooving processing applications, due to its processing characteristics, the rigidity of traditional groove cutters is low, and situations such as poor chip removal, vibration of the cutter, broken cutter and broken blade often occur, which not only seriously affects the machining safety and the surface quality of the part, but also reduces the service life of the cutter, resulting in high cutter cost. In recent years, machining enterprises have generally found that slotting cutters with PCBN material at the cutting edge have advantages that cannot be matched by traditional alloy slotting cutters in the machining of oil grooves, relief grooves and external turning of difficult-to-machine materials such as hardened steel, cast iron, high-temperature alloy and powder metallurgy materials. The anti-vibration, high-strength and high-hardness of PCBN slotting cutters are the development trend of future slotting cutters.

[0004] However, PCBN slotting cutters need to be ground during the manufacturing process, and the PCBN slotting cutters need to be positioned during grinding. However, the stability of the existing positioning device for fixing the PCBN slotting cutter is relatively poor, which will affect the production efficiency and machining quality of the PCBN slotting cutter. SUMMARY

[0005] Therefore, the application provides a PCBN slotting cutter grinding positioning device and a grinding equipment to solve the problem that the stability of the existing positioning device for fixing the PCBN slotting cutter is relatively poor, which will affect the production efficiency and machining quality of the PCBN slotting cutter.

[0006] According to an aspect of the present application, a PCBN slotting tool grinding positioning device is provided for grinding a PCBN slotting tool, the PCBN slotting tool grinding positioning device comprising a positioning member, a pressing member and a fastening member, the positioning member comprising a first positioning surface and a second positioning surface, a protruding portion protruding from the first positioning surface in a first direction being formed on the first positioning surface, the second positioning surface being located on one side of the first positioning surface in a second direction, the pressing member being hinged to the positioning member;

[0007] The PCBN slotting tool comprises a first abutting surface and a second abutting surface, a first positioning groove being formed in the middle of the first abutting surface in a third direction, the first positioning groove extending in the second direction, the first direction intersecting the second direction, the third direction intersecting the plane determined by the first direction and the second direction;

[0008] The first abutting surface abuts against the first positioning surface, part of the positioning member extending into the first positioning groove, the second abutting surface abutting against the second positioning surface, the fastening member being capable of applying force to the first end of the pressing member, so that the second end of the pressing member abuts against the side of the PCBN slotting tool facing away from the first positioning surface in the first direction.

[0009] Preferably, the PCBN slotting tool grinding positioning device comprises a rotating shaft and two support members, the two support members being spaced apart on the positioning member in the third direction, the pressing member being arranged between the two support members and connected to the two support members through the rotating shaft.

[0010] Preferably, the first end of the pressing member and the second end of the pressing member are respectively located on both sides of the rotating shaft in the second direction, the first end of the pressing member being provided with a threaded hole extending through the pressing member;

[0011] The fastening member extends in the first direction, the fastening member being threadedly connected to the threaded hole, and the fastening member abutting against the positioning member.

[0012] Preferably, the PCBN slotting tool further comprises a third abutting surface, the third abutting surface and the first abutting surface being respectively located on both sides of the PCBN slotting tool in the first direction, the third abutting surface being formed with a second positioning groove, the second positioning groove extending in the second direction, part of the pressing member being capable of extending into the second positioning groove.

[0013] Preferably, the positioning member comprises a first positioning piece and a second positioning piece, one end of the first positioning piece is connected with the second positioning piece in the second direction, part of the second positioning piece is higher than the first positioning piece in the first direction, the first positioning surface is located on the side of the first positioning piece facing the crimping piece in the first direction, and the second positioning surface is located on the side of the second positioning piece facing the first positioning piece in the second direction.

[0014] Preferably, the size of the first positioning surface in the second direction is smaller than the size of the PCBN grooving tool in the second direction.

[0015] Preferably, the PCBN grooving tool grinding positioning device further comprises a fixing seat, a mounting piece and a connecting piece, one end of the mounting piece is connected with the second positioning piece away from the first positioning piece in the second direction, the fixing seat comprises a limiting hole and an engaging groove, the limiting hole penetrates through the fixing seat in the second direction, the engaging groove is recessed from the side of the fixing seat in the third direction to the inside of the fixing seat, and the engaging groove is in communication with the limiting hole.

[0016] The mounting piece is arranged in the limiting hole, and the connecting piece can apply force to the fixing seat to make the two parts of the fixing seat located on both sides of the engaging groove in the first direction close to each other.

[0017] Preferably, the side of the fixing seat away from the positioning member is provided with a plurality of scale lines, and the plurality of scale lines are equidistantly arranged along the circumference of the limiting hole.

[0018] The side of the mounting piece away from the positioning member is provided with an identification part, and the mounting piece can rotate in the limiting hole to make the identification part point to one of the scale lines.

[0019] Preferably, the positioning member surrounds a first communication cavity, and the side of the positioning member away from the mounting piece is provided with a liquid outlet in the second direction, and the liquid outlet is in communication with the first communication cavity.

[0020] The mounting piece surrounds a second communication cavity, the side of the mounting piece away from the positioning piece is provided with a liquid inlet in the second direction, the liquid inlet is in communication with the second communication cavity, and the first communication cavity is in communication with the second communication cavity.

[0021] According to another aspect of the present application, a grinding device is provided, which comprises a grinding machine and the above-mentioned PCBN grooving tool grinding positioning device, and the PCBN grooving tool grinding positioning device is fixed on the grinding machine.

[0022] In use of the PCBN slotting cutter grinding positioning device of the application, the first abutting surface abuts against the first positioning surface, and part of the positioning member extends into the first positioning groove. The second abutting surface abuts against the second positioning surface, and the fastening member can apply force to the first end of the pressure contact member, so that the second end of the pressure contact member abuts against the side of the PCBN slotting cutter which is opposite to the side of the PCBN slotting cutter facing the first positioning surface in the first direction. The first positioning surface cooperates with the pressure contact member to realize positioning of the PCBN slotting cutter in the first direction, the second abutting surface abuts against the second positioning surface to realize positioning of the PCBN slotting cutter in the second direction, and part of the PCBN slotting cutter extends into the first positioning groove to realize positioning of the PCBN slotting cutter in the third direction. In this way, the PCBN slotting cutter grinding positioning device can realize positioning of the PCBN slotting cutter in the first direction, the second direction and the third direction, thereby improving the stability of fixation of the PCBN slotting cutter, and further improving the production efficiency and machining quality of the PCBN slotting cutter. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some of the embodiments of the application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor.

[0024] Figure 1 A diagram showing the relative position of the PCBN slotting cutter grinding positioning device of the embodiment of the application and the grinding wheel;

[0025] Figure 2 A diagram showing the relative position of the mounting member and the positioning member;

[0026] Figure 3 A diagram showing the relative position of the positioning member, the mounting member and the PCBN slotting cutter;

[0027] Figure 4 A diagram showing the structure of the PCBN slotting cutter;

[0028] Figure 5 A diagram showing the relative position of the pressure contact member and the positioning member;

[0029] Figure 6 A diagram showing the structure of the fixing seat;

[0030] Figure 7 A diagram showing the structure of the PCBN slotting cutter grinding positioning device.

[0031] Icon: 1-PCBN grooving tool; 11-first positioning groove; 12-second positioning groove; 2-positioning member; 21-first positioning piece; 211-liquid outlet; 22-second positioning piece; 23-protruding part; 3-pressing piece; 31-embedded part; 4-fastening member; 41-fastening part; 42-contact part; 51-rotation shaft; 52-supporting piece; 53-connecting rod; 6-connector; 7-mounting piece; 71-identification part; 72-liquid inlet; 8-fixing seat; 81-limiting hole; 82-adapting groove; 83-scale line; 84-notch; 9-grinding wheel; S1-first positioning surface; S2-second positioning surface; S3-first abutting surface; S4-second abutting surface; S5-third abutting surface; L1-first direction; L2-second direction; L3-third direction. DETAILED DESCRIPTION

[0032] The following detailed description is presented to aid in understanding the method, apparatus and / or system described herein. It is not intended to limit the method, apparatus and / or system described herein to the precise construction described. Rather, various changes, modifications, and equivalents can be resorted to as will be apparent to those skilled in the art. For example, the order of the operations described herein can be changed, except that the operations must occur in the order in which they are described unless otherwise stated. In addition, features known to those in the art can be omitted from the description.

[0033] The features described herein can be implemented in different forms and should not be construed as limited to the examples described herein. Rather, these examples have been provided so that this disclosure will be thorough and complete, and will fully convey the scope of the methods, apparatus and / or systems to those skilled in the art. Further, the description should not be construed as limiting the methods, apparatus and / or systems described herein to particular examples presented.

[0034] Throughout the specification, when an element (such as a layer, region or substrate) is referred to as being "on" another element, "connected to" another element, "coupled to" another element, "in contact with" another element, or "covering" another element, it can be directly on, connected, coupled, in contact with, or covering the other element, or one or more other elements can be interposed therebetween. In contrast, when an element is referred to as being "directly on", "directly connected to", "directly coupled to", "directly in contact with" or "directly covering" another element, there are no other elements interposed therebetween.

[0035] As used herein, the term "and / or" includes any and all combinations of one or more of the associated items.

[0036] Although terms such as "first" and "second" and "third" can be used herein to describe various elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. Rather, these terms are only used to distinguish one element, component, region, layer or section from another element, component, region, layer or section. Thus, elements, components, regions, layers and / or sections referred to as a first element, component, region, layer or section in an example described herein can also be referred to as a second element, component, region, layer or section in another example without departing from the teachings of the examples.

[0037] For ease of description, spatial relationship terms, such as "on", "upper", "below", and "lower", can be used herein to describe the relationship between one element and another element as shown in the drawings. Such spatial relationship terms are intended to encompass different orientations of the device in use or operation, in addition to the orientation depicted in the drawings. For example, if the device in the drawings is turned over, an element described as on "upper" or "above" another element would then be oriented "below" or "on" the other element. Accordingly, the term "on" encompasses both an "on" and "under" orientation in

[0038] The terminology used herein is for the purpose of describing various examples only and is not intended to be limiting of the disclosure. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises", "comprising", "includes", "including" and "has", "having" and "contains", "containing" as used herein, are meant to be open-ended terms that do not exclude other components, but mean that the listed components are included.

[0039] Variations in shapes depicted in the drawings can occur as a result of manufacturing processes and / or tolerances. Thus, the examples described herein are not limited to the precise shapes shown in the drawings, but include variations in shapes that occur as a result of manufacturing processes.

[0040] Features of the examples described herein can be combined with one another as would be apparent to one of ordinary skill in the art after having the benefit of the present disclosure. Furthermore, although examples are described herein with various configurations, other configurations are possible in accordance with the present disclosure.

[0041] The following will be described with reference to the drawings. Figures 1 to 7The PCBN grooving tool grinding positioning device of this application is described, wherein the first direction L1 intersects with the second direction L2, and the third direction L3 intersects with the plane determined by the first direction L1 and the second direction L2. Preferably, the first direction L1, the second direction L2 and the third direction L3 are perpendicular to each other.

[0042] According to one aspect of this application, a PCBN grooving tool grinding positioning device is provided. This device is used to grind a PCBN grooving tool 1. Figures 1 to 7 As shown, the PCBN grooving tool grinding positioning device includes a positioning component 2, a pressing component 3, and a fastening component 4. The positioning component 2 includes a first positioning surface S1 and a second positioning surface S2. A protrusion 23 is formed on the first positioning surface S1 along the first direction L1. The second positioning surface S2 is located on one side of the first positioning surface S1 in the second direction L2. The pressing component 3 is hinged to the positioning component 2. The PCBN grooving tool 1 includes a first abutting surface S3 and abutting surface S4. The first abutting surface S3 has a first positioning groove 11 in the middle of the third direction L3. The first positioning groove 11 extends along the second direction L2. The first abutting surface S3 abuts against the first positioning surface S1. A portion of the positioning component 2 extends into the first positioning groove 11. The second abutting surface S4 abuts against the second positioning surface S2. The fastening component 4 can apply force to the first end of the pressing component 3, so that the second end of the pressing component 3 abuts against the side of the PCBN grooving tool 1 facing away from the first positioning surface S1 in the first direction L1.

[0043] When the PCBN grooving tool grinding positioning device is used, the first positioning surface S1 cooperates with the pressing part 3 to position the PCBN grooving tool 1 in the first direction L1. The second abutting surface S4 abuts with the second positioning surface S2 to position the PCBN grooving tool 1 in the second direction L2. A portion of the PCBN grooving tool 1 extends into the first positioning groove 11, thereby positioning the PCBN grooving tool 1 in the third direction L3. In this way, the PCBN grooving tool grinding positioning device can position the PCBN grooving tool 1 in three directions: the first direction L1, the second direction L2, and the third direction L3, improving the stability of fixing the PCBN grooving tool 1, and thus improving the production efficiency and processing quality of the PCBN grooving tool 1.

[0044] In the embodiments of this application, such as Figure 2 and Figure 3As shown, the positioning member 2 comprises a first positioning piece 21 and a second positioning piece 22, the first positioning piece 21 is connected with one end of the second positioning piece 22 in the second direction L2, and part of the second positioning piece 22 is higher than the first positioning piece 21 in the first direction L1, the first positioning surface S1 is located on the side of the first positioning piece 21 facing the crimping piece 3 in the first direction L1, and the second positioning surface S2 is located on the side of the second positioning piece 22 facing the first positioning piece 21 in the second direction L2. In this way, the first positioning surface S1 can support the PCBN grooving cutter 1, and one end of the PCBN grooving cutter 1 in the third direction L3 abuts against the second positioning surface S2 to limit the PCBN grooving cutter 1 in the second direction L2.

[0045] Further, the size of the first positioning surface S1 in the second direction L2 is smaller than the size of the PCBN grooving cutter 1 in the second direction L2, which makes the end of the PCBN grooving cutter 1 in the second direction L2 away from the second positioning surface S2 protrude relative to the first positioning piece 21, and interference between the positioning member 2 and the grinding wheel 9 in the grinding machine during grinding can be avoided.

[0046] As shown in Figure 2 , Figure 3 and Figure 5 , the PCBN grooving cutter grinding positioning device comprises a rotating shaft 51 and two support pieces 52, the support pieces 52 protrude from the upper surface of the second positioning piece 22 in the first direction L1, and the two support pieces 52 are arranged at intervals in the third direction L3, the crimping piece 3 is arranged between the two support pieces 52, and the rotating shaft 51 passes through the crimping piece 3 and the two support pieces 52, so that the crimping piece 3 can rotate relative to the two support pieces 52.

[0047] Further, the first end of the crimping piece 3 and the second end of the crimping piece 3 are respectively located on both sides of the rotating shaft 51 in the second direction L2, the first end of the crimping piece 3 is provided with a threaded hole penetrating through the crimping piece 3; the fastening member 4 extends in the first direction L1, the fastening member 4 is threadedly connected with the threaded hole, and the fastening member 4 abuts against the upper surface of the second positioning piece 22 of the positioning member 2. In this way, when the fastening member 4 is tightened, the fastening member 4 rotates relative to the second positioning piece 22, and because the fastening member 4 abuts against the upper surface of the second positioning piece 22, the first end of the crimping piece 3 moves away from the second positioning piece 22, the second end of the crimping piece 3 moves towards the PCBN grooving cutter 1, and the second end of the crimping piece 3 cooperates with the first positioning surface S1 to realize positioning of the PCBN grooving cutter 1 in the first direction L1.

[0048] Preferably, the fastening member 4 comprises a fastening portion 41 and a contact portion 42, the fastening portion 41 abuts against the side of the pressure joint 3 opposite to the positioning member 2, and the outer side wall of the contact portion 42 is formed with external threads. The outer diameter of the fastening portion 41 is larger than that of the contact portion 42, and the outer side wall of the fastening portion 41 is formed with patterns, which allows an operator to tighten the fastening member 4 by hand-tightening the fastening portion 41, thereby achieving the positioning of the PCBN grooving tool 1.

[0049] Optionally, as shown in Figure 4 and Figure 5 , the PCBN grooving tool 1 further comprises a third abutting surface S5, the first abutting surface S3 and the third abutting surface S5 are respectively located on both sides of the PCBN grooving tool 1 in the first direction L1, the third abutting surface S5 is formed with a second positioning groove 12, the second positioning groove 12 extends along the second direction L2, and the side of the second end of the pressure joint 3 facing the PCBN grooving tool 1 is formed with an embedding portion 31, which can be a strip structure extending along the second direction L2. In this way, by cooperating the embedding portion 31 with the second positioning groove 12, the stability of the contact between the PCBN grooving tool 1 and the pressure joint 3 can be ensured, and the positioning of the PCBN grooving tool 1 in the third direction L3 can be achieved.

[0050] In addition, as shown in Figure 3 and Figure 7 , the PCBN grooving tool 1 further comprises a mounting member 7, which is connected to the end of the second positioning member 22 opposite to the second positioning member 22 in the third direction L3. The fixing seat 8 comprises a notch 84, part of the grinding machine extends into the notch 84, and the connecting rod 53 passes through the fixing seat 8 and the grinding machine, thereby fixing the PCBN grinding clamp on the grinding machine. The fixing seat 8 comprises a limiting hole 81 and a connecting groove 82, the limiting hole 81 extends through the fixing seat 8 along the second direction L2, and the connecting groove 82 is recessed from the side of the fixing seat 8 in the third direction L3 to the inside of the fixing seat 8, and the connecting groove 82 communicates with the limiting hole 81; the mounting member 7 is arranged in the limiting hole 81, and the connecting member 6 can apply force to the fixing seat 8 to make the two parts of the fixing seat 8 located on both sides of the connecting groove 82 in the first direction L1 close to each other, thereby achieving the fixation of the mounting member 7 and the positioning member through the fixing seat 8.

[0051] Preferably, the connecting member 6 can be a bolt.

[0052] Further, the side of the fixing seat 8 opposite to the second positioning member 22 is provided with a plurality of scale lines 83, the plurality of scale lines 83 are equidistantly arranged along the circumference of the limiting hole 81; the side of the mounting member 7 opposite to the second positioning member 22 is provided with an identification part 71, the mounting member 7 can rotate in the limiting hole 81, so that the identification part 71 points to one scale line 83. In this way, the inclination degree of the mounting member 7 and the positioning member 2 connected with the mounting member 7 can be adjusted based on the scale line 83, so as to adjust the grinding angle of the PCBN slotting cutter 1, so as to be suitable for the angle grinding needs of various complex PCBN slotting cutters 1.

[0053] Optionally, the positioning member 2 surrounds a first communication cavity, the positioning member 2 is provided with a liquid outlet 211, the liquid outlet 211 is in communication with the first communication cavity; the mounting member 7 surrounds a second communication cavity, the mounting member 7 is provided with a liquid inlet 72 on the side opposite to the positioning member 2 in the second direction L2, the liquid inlet 72 is in communication with the second communication cavity, and the first communication cavity is in communication with the second communication cavity. In this way, the cooling liquid can be provided to the grinding wheel 9 through the liquid inlet 72, the second communication cavity, the first communication cavity and the liquid outlet 211, and the addition of cooling liquid during grinding is helpful for the precise forming of the edge of the PCBN slotting cutter 1, the cooling liquid can take away most of the grinding heat and grinding powder, and at the same time clean the grinding wheel 9.

[0054] In the use of the PCBN slotting cutter grinding positioning device of the present application, the first abutting surface S3 of the PCBN slotting cutter 1 is abutted with the first positioning surface S1, and the protruding part 23 is placed in the first positioning groove 11 of the PCBN slotting cutter 1, the second abutting surface S4 of the PCBN slotting cutter 1 is abutted with the second positioning surface S2, so as to realize the limiting of the PCBN slotting cutter 1 in the first direction L1 and the third direction L3. Then the fastening member 4 is screwed, so that the second end of the pressure contact member 3 moves towards the PCBN slotting cutter 1, the embedding part 31 is embedded in the second positioning groove 12, and the positioning of the PCBN slotting cutter 1 in the second direction L2 can be realized by the cooperation of the pressure contact member 3 and the first positioning surface S1.

[0055] According to another aspect of the present application, a grinding equipment is provided, the grinding equipment comprises a grinding machine and the PCBN slotting cutter grinding positioning device, the PCBN slotting cutter grinding positioning device is fixed on the grinding machine, and the grinding equipment has the same technical effect as the PCBN slotting cutter grinding positioning device, which will not be described here.

[0056] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and are not intended to limit the present application; although the present application has been described in detail with reference to the above embodiments, those skilled in the art should understand that the technical solutions recorded in the above embodiments can be modified, or some or all of the technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A PCBN grooving tool grinding and positioning device, wherein the PCBN grooving tool grinding and positioning device is used for grinding PCBN grooving tools, characterized in that, The PCBN grooving tool grinding positioning device includes a positioning component, a pressing component, and a fastening component. The positioning component includes a first positioning surface and a second positioning surface. A protrusion protruding from the first positioning surface along a first direction is formed on the first positioning surface. The second positioning surface is located on one side of the first positioning surface in a second direction. The pressing component is hinged to the positioning component. The PCBN grooving tool includes a first abutting surface and a second abutting surface. The first abutting surface has a first positioning groove in the middle of a third direction. The first positioning groove extends along the second direction. The first direction intersects the second direction. The third direction intersects the plane determined by the first direction and the second direction. The first abutting surface abuts against the first positioning surface, a portion of the positioning member extends into the first positioning groove, the second abutting surface abuts against the second positioning surface, and the fastening member can apply force to the first end of the crimping member, so that the second end of the crimping member abuts against the side of the PCBN grooving tool facing away from the first positioning surface in the first direction. The positioning component includes a first positioning element and a second positioning element, wherein the first positioning element and the second positioning element are connected at one end in the second direction; The PCBN grooving tool grinding positioning device also includes a fixed base, a mounting component, and a connecting component. The mounting component is connected to the end of the second positioning component facing away from the first positioning component in the second direction. The fixed base includes a limiting hole and a connecting groove. The limiting hole penetrates the fixed base along the second direction. The connecting groove is recessed into the fixed base from the side of the fixed base in the third direction and communicates with the limiting hole. The mounting component is disposed in the limiting hole, and the connecting component can apply force to the fixing seat so that the two parts of the fixing seat located on both sides of the connecting groove in the first direction are brought closer to each other. The fixed base has multiple scale lines on the side opposite to the positioning member, and the multiple scale lines are equally spaced along the circumference of the limiting hole. The mounting component has a marking portion on the side facing away from the positioning member. The mounting component can rotate within the limiting hole so that the marking portion points to one of the scale lines.

2. The PCBN grooving tool grinding and positioning device according to claim 1, characterized in that, The PCBN grooving tool grinding positioning device includes a rotating shaft and two support members. The two support members are spaced apart on the positioning member along the third direction. The pressing member is disposed between the two support members and is connected to the two support members through the rotating shaft.

3. The PCBN grooving tool grinding and positioning device according to claim 2, characterized in that, The first end and the second end of the crimping member are respectively located on both sides of the rotating shaft in the second direction, and the first end of the crimping member has a threaded hole that passes through the crimping member; The fastening member extends along the first direction, the fastening member is threadedly connected to the threaded hole, and the fastening member abuts against the positioning member.

4. The PCBN grooving tool grinding and positioning device according to any one of claims 1-3, characterized in that, The PCBN grooving tool further includes a third abutment surface, which is located on both sides of the PCBN grooving tool in the first direction, and the third abutment surface forms a second positioning groove that extends along the second direction. A portion of the pressing member can extend into the second positioning groove.

5. The PCBN grooving tool grinding and positioning device according to claim 1, characterized in that, A portion of the second positioning member is higher than the first positioning member in the first direction, the first positioning surface is located on the side of the first positioning member facing the crimping member in the first direction, and the second positioning surface is located on the side of the second positioning member facing the first positioning member in the second direction.

6. The PCBN grooving tool grinding and positioning device according to claim 5, characterized in that, The dimension of the first positioning surface in the second direction is smaller than the dimension of the PCBN grooving tool in the second direction.

7. The PCBN grooving tool grinding and positioning device according to claim 1, characterized in that, The positioning member encloses a first communicating cavity, and the positioning member has a liquid outlet on the side opposite to the mounting member in the second direction, and the liquid outlet communicates with the first communicating cavity. The mounting component encloses a second communicating cavity. The mounting component has a liquid inlet on the side opposite to the positioning component in the second direction. The liquid inlet communicates with the second communicating cavity, and the first communicating cavity communicates with the second communicating cavity.

8. A grinding device, characterized in that, The grinding equipment includes a grinding machine and a PCBN grooving tool grinding positioning device according to any one of claims 1-7, wherein the PCBN grooving tool grinding positioning device is fixed on the grinding machine.

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