CN201815679U - Movable inner groove knife for adjusting machine clamp - Google Patents

Abstract

Adjustable machine clip indexable internal groove cutter, including a cutter bar and a blade, the head of the cutter bar is provided with an axial slit, and the head is provided with a radial for adjusting the slit The locking screw of the opening degree; the end of the slit is provided with a blade receiving groove perpendicular to the locking screw, and it is characterized in that: the surface of the head of the knife rod is provided with a hole that goes deep into the The positioning screw of the blade receiving groove described above, the positioning screw limits the depth of the blade inserted into the blade receiving groove; the knife rod is a square cylinder structure. The locking screw utilizes the elastic deformation of the head opening of the cutter bar to compress and fix the indexable inner groove insert. The positioning screw is used as the radial braking support point of the indexable inner groove insert to realize the radial adjustment of the insert within a certain range. Changing the tool holder from a cylinder to a square cylinder can effectively increase the processing depth of the inner groove. Reasonable design, simple structure, convenient adjustment, safe, reliable, firm and durable.

Description

Adjustable machine clamp indexable inner groove cutter

technical field

The utility model belongs to the technical field of cutting tools for metal cutting, and in particular relates to an adjustable inner groove cutter with indexable clamps.

Background technique

At present, the internal groove cutter is mainly used for the processing of internal grooves, relief grooves, overrun grooves, sealing grooves, or inner cavities in the inner hole. It can be cut radially or axially. It is widely used in processing. Inner groove knives can be divided into welded and machine-clip indexable inner groove knives. Welded inner groove knives directly weld the blade to the cutter body. The geometric angle and machining accuracy of the cutter are guaranteed by skilled workers. ; while the blade and cutter body of the machine-clip indexable inner groove cutter are standardized, and the carbide blade is directly installed on the cutter body, which greatly improves the machining accuracy and production efficiency, and gradually replaces the welded inner groove Knife use.

The machine clamp type indexable internal groove cutters currently used at home and abroad are mainly composed of a cutter bar, an indexable groove blade and a locking screw. The blade is clamped by the elastic deformation of the positioning surface and the locking screw on the opening of the head of the cutter body to ensure the stability of the cutting tool. However, due to the fixed radial positioning surface of the machine clip-type inner groove cutters currently on the market, the damaged blade is clamped after turning around, and its length is shorter than the original one, resulting in insufficient protruding length of the blade and cannot be used again, resulting in The blades are wasted, and because the cemented carbide blades are expensive, once they are damaged, the production and processing costs of the enterprise will increase greatly. Moreover, the maximum processing depth of the inner groove is a fixed value, which cannot be effectively adjusted within a certain range, and the processing performance is not good.

Contents of the invention

The utility model aims to overcome the shortcomings of the existing machine clamp type indexable inner groove blades that are seriously wasted and the maximum processing depth of the inner groove cannot be effectively adjusted within a certain range, and proposes a blade with high utilization rate and inner groove processing depth The adjustable machine clamp can be added within a certain range and the indexable inner groove knife can be added.

The technical scheme of the utility model is:

Adjustable machine clip indexable internal groove cutter, including a cutter bar and a blade, the head of the cutter bar is provided with an axial slit, and the head is provided with a radial for adjusting the slit The locking screw of the opening degree; the end of the slit is provided with a blade receiving groove perpendicular to the locking screw, and it is characterized in that: the surface of the head of the knife rod is provided with a hole that goes deep into the The positioning screw of the blade receiving groove described above, the positioning screw defines the depth of the blade inserted into the blade receiving groove.

Further, the knife rod is a square cylinder.

When in use, the tool holder is mainly used for the installation of the tool on the tool holder and the clamping of the blade; the blade is a standardized part, used for metal cutting of the inner groove; the positioning screw is used to adjust the radial extension length of the blade and the radial The brake blade; the locking screw mainly uses the elastic deformation of the head opening of the cutter bar to compress and fix the blade.

The adjustable machine clip indexable inner groove knife described in the utility model makes one end of the blade cracked or damaged through the structural design of the indexable inner groove knife, and the other end can continue to work after the other end is installed on the knife bar. The use meets the processing requirements, reduces production costs, and achieves low-carbon environmental protection; through the structural modification of the head of the tool holder, adding a positioning screw and adjusting the stop screw can effectively increase the processing depth of the inner groove within a certain range and improve the processing of the tool. Process range. At the same time, the structure of the cutter bar is optimized, and the original cylinder is changed to a square cylinder, which can effectively increase the cutting depth of the inner groove.

The utility model has the following advantages:

(1) By adding a positioning screw on the head of the cutter bar as the radial braking support point of the blade, the radial adjustment of the blade within a certain effective range, the radial processing depth, and the expansion of the processing range are realized.

(2) After one end of the blade is cracked or damaged, the other end can continue to be used after the blade is indexed.

(3) Changing the cutter bar from the original cylinder to a square cylinder can effectively increase the processing depth of the inner groove.

(4) Reasonable design, simple structure, convenient adjustment, safe and reliable, durable, low-carbon and environmentally friendly.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Fig. 2 is a top view of the utility model.

Fig. 3 is a structural schematic diagram of the locking screw of the present invention.

Fig. 4 is a schematic diagram of the structure of the blade in the radial direction of the head of the tool holder.

Fig. 5 is a sectional view along A-A direction of Fig. 2 .

Detailed ways

Below in conjunction with accompanying drawing, the utility model is further described:

Referring to Fig. 1-Fig. 5, the adjustable machine clip indexable internal groove cutter described in the utility model includes a cutter bar 1 and a blade 2, and the head of the cutter bar is provided with an axial slit, and the described The head is provided with a radial locking screw 4 for adjusting the opening of the slit; the end of the slit is provided with a blade receiving groove perpendicular to the locking screw 4, so The surface of the head of the cutter bar 1 is provided with a positioning screw 3 that goes deep into the blade receiving groove, and the positioning screw 3 limits the depth of the blade 2 inserted into the blade receiving groove.

The cutter bar 1 is a square cylinder.

When in use, the tool bar 1 is mainly used for installing the tool on the tool holder and clamping the blade; the blade 2 is a standardized part, used for metal cutting of the inner groove; the positioning screw 3 is used to adjust the radial extension of the blade 3 The length and radial brake blade 2; the locking screw 4 mainly uses the elastic deformation of the head opening of the cutter bar 1 to compress and fix the blade 2.

The adjustable machine clip indexable inner groove knife described in the utility model is designed through the structural design of the indexable inner groove knife so that after one end of the blade 2 is cracked or damaged, the other end is installed on the knife bar 1 after being indexed. It can continue to be used to meet the processing requirements, reduce production costs, and achieve low-carbon environmental protection; through the structural modification of the head of the cutter bar 1, a positioning screw 3 is added, and the adjustment of the positioning screw 3 can effectively increase the processing depth of the inner groove within a certain range. , Improve the processing range of the tool. At the same time, the structure of the cutter bar 1 is optimized, and the original cylinder is changed into a square cylinder, which can effectively increase the cutting depth of the inner groove.

The content described in the embodiments of this specification is only an enumeration of the realization forms of the utility model concept, and the protection scope of the utility model should not be regarded as being limited to the specific forms stated in the embodiments, and the protection scope of the utility model also extends to Equivalent technical means that those skilled in the art can think of according to the concept of the utility model.

Claims (2)

1. Adjustable machine clip indexable inner groove cutter, including cutter bar and blade, the head of the cutter bar is provided with axial slits, and the head is provided with radial slots for adjusting the The locking screw of the opening of the slit; the end of the slit is provided with a blade receiving groove perpendicular to the locking screw, and it is characterized in that: the surface of the head of the knife rod is provided with a The positioning screw goes deep into the blade receiving groove, and the positioning screw limits the depth of the blade inserted into the blade receiving groove. 2 . The indexable internal groove cutter of the adjustable clamp according to claim 1 , wherein the cutter rod is a square cylinder. 3 .

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