Numerical control grinding machine blade grinding clamp

Abstract

The utility model discloses a numerical control grinding machine blade grinding clamp which comprises a base body and a fastener. The base body comprises a base column and a base table, the base table is fixed to the top of the base column, and the base table is provided with a first positioning side part, a second positioning side part and a clearance position; a blade containing groove is defined by the first positioning side portion and the second positioning side portion, the receding position is arranged at the junction of the first positioning side portion and the second positioning side portion, and a fixing screw hole penetrating through the base table is formed in the bottom of the blade containing groove. The fastener is in threaded connection with the fixing screw hole; the coping clamp is simple in structure, resistant to abrasion and corrosion, high in positioning precision, good in coping angle consistency and high in coping efficiency.

Description

Technical Field

[0001] This utility model relates to the field of blade processing technology, specifically a CNC grinding machine blade regrinding fixture. Background Technology

[0002] In modern turning production, the application of non-standard turning tools is becoming increasingly widespread. To meet daily production needs, companies have to purchase large quantities of brand-new, finished non-standard turning tools. Due to the lack of appropriate fixture support, these non-standard turning tools cannot be effectively regrinded and reused once they wear out, and can only be treated as disposable tools. This not only greatly increases production costs but also increases resource waste. In addition, the current regrinding of non-standard turning tools mainly relies on manual operation, and due to the lack of CNC grinding machines, the degree of automation is low, resulting in low regrinding efficiency. Utility Model Content

[0003] To solve the above problems, this utility model provides a CNC grinding machine cutting tool regrinding fixture, including a base and fasteners; the base includes a base column and a base platform, the base platform is fixed on the top of the base column, and the base platform is provided with a first positioning side, a second positioning side and a clearance position; the first positioning side and the second positioning side form a cutting tool placement groove, the clearance position is located at the intersection of the first positioning side and the second positioning side, and the bottom of the cutting tool placement groove is provided with a fixing screw hole that penetrates the base platform; the fasteners are screwed into the fixing screw hole.

[0004] Preferably, the base is provided with a first support surface, a second support surface and a third support surface below the blade placement slot, and the first support surface, the second support surface and the third support surface are all vertical surfaces.

[0005] Preferably, the surface connecting the base and the column is a conical surface, and the angle of inclination between the conical surface and the centerline of the column is 30~60°.

[0006] Preferably, the surface of the abutment is coated with a titanium nitride coating.

[0007] Preferably, the surface of the base is coated with an aluminum-titanium nitride composite coating layer.

[0008] The beneficial effects are as follows: This application provides a simple CNC grinding machine insert regrinding fixture. In use, the tool blank is placed in the insert placement groove, the cutting edge of the tool blank is engaged in the clearance position, the first side of the tool blank is tightly fitted with the first positioning side of the base, and the second side of the tool blank is tightly fitted with the second positioning side of the base. Fasteners pass through the through holes on the tool blank and are screwed into the fixing screw holes on the base. After the tool blank is fixed by the regrinding fixture, the regrinding fixture is then installed on the chuck of the CNC grinding machine, and the tool blank is ground by the grinding wheel on the CNC grinding machine. The regrinding fixture provided by this application is wear-resistant, corrosion-resistant, has high positioning accuracy, good consistency of regrinding angle, and greatly improves regrinding efficiency. Attached Figure Description

[0009] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0010] Figure 1 This is a schematic diagram of the structure of this utility model;

[0011] Figure 2 This is a structural schematic diagram of the present invention from another perspective;

[0012] In the picture:

[0013] 1. Matrix;

[0014] 11. Foundation column;

[0015] 12. Base; 121. First positioning side; 122. Second positioning side; 123. Fixing screw hole; 124. Clearance space; 125. Blade placement slot; 126. First support surface; 127. Second support surface; 128. Third support surface; 129. Conical surface;

[0016] 2. Fasteners;

[0017] 3. Tool blank; 31. First side; 32. Second side; 33. Cutting edge; 34. Through hole. Detailed Implementation

[0018] The following drawings will disclose several embodiments of this utility model. For clarity, many practical details will be described in the following description. However, it should be understood that these practical details should not be used to limit this utility model. That is, in some embodiments of this utility model, these practical details are not essential. In addition, for the sake of simplicity, some conventional structures and components will be shown in the drawings in a simple schematic manner.

[0019] It should be noted that all directional indicators in this utility model embodiment, such as up, down, left, right, front, back, etc., are only used to explain the relative positional relationship and movement of the components in a specific posture as shown in the attached figure. If the specific posture changes, the directional indicator will also change accordingly.

[0020] Furthermore, in this utility model, the use of terms such as "first" and "second" is for descriptive purposes only and does not specifically refer to any order or sequence, nor is it intended to limit the utility model. They are merely used to distinguish components or operations described with the same technical terms and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of various embodiments can be combined with each other, but only if they are feasible for those skilled in the art. If a combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0021] Example

[0022] Please see Figure 1 , Figure 1 This is a schematic diagram of the structure of the present invention. This embodiment provides a CNC grinding machine cutting tool regrinding fixture, including a base 1 and a fastener 2. The base 1 includes a base column 11 and a base platform 12. The base platform 12 is fixed to the top of the base column 11. The base platform 12 is provided with a first positioning side 121, a second positioning side 122, and a clearance 124. The first positioning side 121 and the second positioning side 122 form a cutting tool placement groove 125. The clearance 124 is located at the intersection of the first positioning side 121 and the second positioning side 122. The bottom of the cutting tool placement groove 125 is provided with a fixing screw hole 123 that penetrates the base platform 12. The fastener 2 is screwed into the fixing screw hole 123. The base 12 is fixed to the top of the base column 11 to form a stable support platform, ensuring that the tool blank 3 will not shift due to external vibration or impact during the regrinding process. The first positioning side 121 and the second positioning side 122 together form the blade placement groove 125, which can precisely define the position of the tool blank 3, ensuring that the tool blank 3 can be accurately placed in the same position each time it is regrinded. The clearance 124 set at the intersection of the first positioning side 121 and the second positioning side 122 can protect the cutting edge of the regrinded tool blank 3 from damage by the fixture, and at the same time protect the regrinding fixture. The fastener 2 is screwed into the fixing screw hole 123, which can be used for tool blanks 3 of different thicknesses, expanding the application range of the regrinding fixture.

[0023] Please see Figure 2 , Figure 2This is a structural schematic diagram of the present invention from another perspective. The base 12 has a first support surface 126, a second support surface 127, and a third support surface 128 located below the blade placement groove 125. All three support surfaces are vertical. These vertical surfaces provide stable vertical support for the tool blank 3, preventing it from tilting or shifting during regrinding. By providing multiple support surfaces, the pressure from the tool blank 3 can be distributed at different locations, preventing deformation or damage to the base 12 due to excessive localized stress. The surface connecting the base 12 to the base column 11 is a conical surface 129, and the angle of inclination between the conical surface 129 and the centerline of the base column 11 is 30° to 60°. Adding a conical surface 129 ensures that the tool blank 3 can effectively prevent interference between the grinding wheel and the base column 11 during the regrinding process. The tilt angle needs to be set within a suitable range. If the tilt angle of the conical surface 129 is set too small, it cannot effectively prevent interference between the grinding wheel and the base column 11, which may lead to a collision between the grinding wheel and the base column 11 during the regrinding process. This will not only damage the grinding wheel and the base column 11, but may also damage the tool blank 3, thus affecting the quality and service life of the final product. If the tilt angle is set too large, it will reduce the effective support area of ​​the base 12, thereby reducing the support stability of the base 12 on the tool blank 3. This makes the tool blank 3 more susceptible to external forces during the regrinding process, causing it to shake or shift, thus affecting the regrinding accuracy and quality.

[0024] The surface of the base 12 is coated with either a titanium nitride coating or an aluminum-titanium nitride composite coating. The titanium nitride coating offers advantages such as high hardness, good lubricity, and corrosion resistance, significantly improving the wear resistance and corrosion resistance of the regrinding fixture while reducing cutting forces and heat generation. Compared to the titanium nitride coating, the aluminum-titanium nitride composite coating provides better oxidation resistance, featuring a dense and stable alumina protective film that enhances the wear resistance and lifespan of the regrinding fixture, enabling it to withstand high-temperature environments.

[0025] In summary, this application provides a simple CNC grinding machine insert regrinding fixture. In use, the tool blank 3 is placed in the insert placement groove 125, the cutting edge of the tool blank 3 is engaged in the clearance position 124, the first side 31 of the tool blank 3 is tightly fitted with the first positioning side 121 of the base 12, and the second side 32 of the tool blank 3 is tightly fitted with the second positioning side 122 of the base 12. Fasteners 2 pass through the through hole 34 on the tool blank 3 and are screwed into the fixing screw hole 123 on the base 12. After fixing the tool blank 3 with the regrinding fixture, the regrinding fixture is then installed on the chuck of the CNC grinding machine, and the tool blank 3 is ground by the grinding wheel on the CNC grinding machine. The regrinding fixture provided by this application is wear-resistant, corrosion-resistant, has high positioning accuracy, good consistency of regrinding angles, and greatly improves regrinding efficiency.

[0026] The above are merely embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. A CNC grinding machine tool regrinding fixture, characterized in that, The device includes a base (1) and fasteners (2); the base (1) includes a base column (11) and a base platform (12), the base platform (12) is fixed to the top of the base column (11), the base platform (12) is provided with a first positioning side (121), a second positioning side (122) and a clearance position (124); the first positioning side (121) and the second positioning side (122) form a blade placement groove (125), the clearance position (124) is located at the intersection of the first positioning side (121) and the second positioning side (122), the bottom of the blade placement groove (125) is provided with a fixing screw hole (123) penetrating the base platform (12); the fasteners (2) are screwed to the fixing screw hole (123).

2. The CNC grinding machine tool grinding fixture according to claim 1, characterized in that, The base (12) is provided with a first support surface (126), a second support surface (127) and a third support surface (128) below the blade placement groove (125), and the first support surface (126), the second support surface (127) and the third support surface (128) are all vertical surfaces.

3. The CNC grinding machine tool grinding fixture according to claim 1, characterized in that, The surface connecting the base (12) and the base column (11) is a conical surface (129), and the angle of inclination formed between the conical surface (129) and the center line of the base column (11) is 30~60°.

4. The CNC grinding machine tool grinding fixture according to claim 1, characterized in that, The surface of the base (12) is coated with a titanium nitride coating.

5. The CNC grinding machine tool grinding fixture according to claim 1, characterized in that, The surface of the base (12) is coated with an aluminum-titanium nitride composite coating layer.

Images