Heavy cutting type double-edge heavy boring cutter

By designing the structure of the inverted T-shaped adjustment slide groove and inner groove notch in the rough boring tool, the contact area between the insert seat and the tool body is increased, and the combined locking of the fastening bolt and the adjustment bolt is solved, and the problem of insufficient cutting stiffness of the traditional rough boring tool is achieved, achieving higher cutting rigidity and stability.

CN222679563UActive Publication Date: 2025-03-28ZHEJIANG YOUNIO TOOLS CO LTD
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Patent Information

Application Number
CN202420550644.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-03-21
Publication Date
2025-03-28
Estimated Expiration
2034-03-21

AI Technical Summary

Technical Problem

The contact area between the insert seat of the traditional rough boring tool and the tool body is small, resulting in insufficient cutting stiffness and easy loosening.

Method used

A heavy-cut double-edged rough boring tool is designed, and the inverted T-shaped adjustment slide groove and inner groove notch is used to make the blade seat come into contact with the tool body through more surfaces, increase the contact area, and lock it through a combination of fastening bolts and adjustment bolts to ensure the stable installation of the blade seat.

Benefits of technology

The contact area between the blade base and the tool body is improved, the cutting rigidity is enhanced, and the possibility of loosening is reduced, thereby improving processing efficiency and product stability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a heavy cutting type double-edge heavy boring cutter which comprises a cutter body and two blade seats, an adjusting sliding groove with an inverted-T-shaped section is transversely formed in the upper end face of the cutter body in a penetrating mode, the two blade seats are transversely installed in the inverted-T-shaped adjusting sliding groove, sliding rails protruding inwards are formed on the two sides of the position, above the adjusting sliding groove, of the cutter body, and the adjusting sliding groove is formed in the cutter body. Inwards-concave notches are formed in the blade seats corresponding to the sliding rails in a matched mode, so that the blade seats are movably adjusted along the adjusting sliding grooves and the sliding rails, fastening bolt installation holes are formed in the positions, corresponding to the two sides of the adjusting sliding grooves, of the cutter body respectively, fastening bolts are installed in the fastening bolt installation holes, and adjusting holes are correspondingly formed in the two blade seats respectively. Fastening bolts penetrate through the adjusting holes to fasten and install the two blade seats in the adjusting sliding grooves. The blade seat is in contact with the cutter body through the bottom surface of the blade seat, the side surface of the blade and three surfaces in the inner groove opening, so that the contact surface of the blade seat and the cutter body is larger, the blade seat is not easy to loosen, and the cutting rigidity is good.
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Description

Technical Field

[0001] The utility model relates to a rough boring tool, belonging to the field of metal cutting technology processing, in particular to a heavy-cutting double-edged rough boring tool. Background Art

[0002] like Figure 1 and Figure 2 As shown, the traditional rough boring tool consists of a tool body 1 and two blade seats 2. The two blade seats are respectively installed in the slide grooves on the upper end surface of the tool body from top to bottom. The blade seats are locked on the tool body by longitudinal fastening bolts. They are fitted with the tool body on three sides. The contact surfaces are the bottom surface 3 of the blade seat, the inner side surface 4 of the bottom of the blade seat and the outer inclined surface 5 of the bottom of the blade seat. The overall contact support area is small and the cutting rigidity is insufficient. Utility Model Content

[0003] In order to solve the above technical problems, the utility model designs a heavy-cutting double-edged rough boring tool. Compared with the structure of traditional rough boring tools, the contact surface between the blade seat and the tool body of the utility model is larger, it is not easy to loosen, and has good cutting rigidity.

[0004] The utility model adopts the following technical solutions:

[0005] A heavy-cutting double-edged rough boring tool comprises a tool body and two blade seats. An adjusting slot with an inverted T-shaped cross section is transversely penetrated through the upper end surface of the tool body. The two blade seats are transversely installed in the inverted T-shaped adjusting slot. Inwardly protruding slide rails are formed on both sides above the adjusting slot on the tool body. Inner groove openings are provided corresponding to the slide rails on the blade seats so that the blade seats can be moved and adjusted along the adjusting slot and the slide rails. Fastening bolt mounting holes are respectively provided on the tool body on both sides of the adjusting slot, and fastening bolts are installed in the fastening bolt mounting holes. Adjustment holes are respectively provided on the two blade seats, and the fastening bolts pass through the adjustment holes to fasten the two blade seats in the adjusting slot.

[0006] Preferably, an adjusting bolt hole is transversely opened on one side of the two blade seats, and an adjusting bolt is installed in the inner thread of the adjusting bolt hole, and the end of the adjusting bolt is squeezed on the bolt rod of the fastening bolt.

[0007] Preferably, the adjustment hole is a waist-shaped hole.

[0008] Preferably, a scale is correspondingly provided on the outer side surface of the upper portion of the blade seat, and a scale pointer is correspondingly provided on the blade body.

[0009] Preferably, a blade slot is provided on the blade seat, and a blade is fastened and installed in the blade slot by bolts.

[0010] Preferably, the lower surface of the slide rail is an inclined surface.

[0011] Preferably, the fastening bolts and adjusting bolts are hexagon socket bolts respectively.

[0012] The beneficial effects of the utility model are as follows: an inverted T-shaped adjustment groove is arranged on the cutter body of the utility model. Compared with the structure of the traditional rough boring tool, the blade seat of the utility model contacts the cutter body through three surfaces: the bottom surface of the blade seat, the side surface of the blade and the inner groove mouth. The contact surface between the blade seat and the cutter body is larger, not easy to loosen, and has good cutting rigidity. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural diagram of a traditional rough boring tool;

[0014] Figure 2 It is a structural diagram of a traditional rough boring tool from another angle;

[0015] Figure 3 It is a stereogram of the utility model;

[0016] Figure 4 It is a front view of the utility model;

[0017] Figure 5 yes Figure 4 A cross-sectional view in the AA direction;

[0018] Figure 6 It is a left side view of the utility model;

[0019] Figure 7 yes Figure 6 A cross-sectional view in the BB direction;

[0020] Figure 8 This is a structural schematic diagram of the utility model when a single blade seat is installed;

[0021] In the figure: 1. knife body, 2. blade seat, 3. bottom surface of blade seat, 4. inner side surface of blade seat bottom, 5. outer inclined surface of blade seat bottom, 6. fastening bolt, 7. blade, 8. adjusting slide groove, 9. inner groove opening, 10. adjusting bolt, 11. adjusting hole, 12. scale, 13. slide rail. DETAILED DESCRIPTION

[0022] The technical solution of the present invention is further described in detail below through specific embodiments and in conjunction with the accompanying drawings:

[0023] Example: Figure 3-Figure 8As shown, a heavy-cutting double-edged rough boring tool comprises a tool body 1 and two blade seats 2. An adjusting slot with an inverted T-shaped cross section is transversely penetrated through the upper end surface of the tool body. The two blade seats are transversely installed in the inverted T-shaped adjusting slot 8. Inwardly protruding slide rails 13 are formed on both sides above the adjusting slot on the tool body. Inner groove openings 9 are provided corresponding to the slide rails on the blade seats to enable the blade seats to move and adjust along the adjusting slot and the slide rails. Fastening bolt mounting holes are respectively opened on the tool body on both sides of the adjusting slot, and fastening bolts 6 are installed in the fastening bolt mounting holes. Adjustment holes 11 are respectively opened on the two blade seats, and the fastening bolts pass through the adjustment holes to fasten the two blade seats in the adjusting slot.

[0024] Adjustment bolt holes are respectively opened horizontally on one side of the two blade seats, and adjustment bolts 10 are installed in the inner threads of the adjustment bolt holes. The adjustment bolts are inserted horizontally into the adjustment holes, and the ends of the adjustment bolts are pressed on the bolt rods of the fastening bolts. The adjustment holes are waist-round holes.

[0025] The outer surface of the upper part of the blade seat is correspondingly provided with a scale 12, and the blade body is correspondingly provided with a scale pointer. The blade seat is provided with a blade slot, and a blade 7 is fastened and installed in the blade slot by bolts. The lower surface of the slide rail is an inclined surface. The fastening bolt and the adjusting bolt are respectively hexagon socket bolts.

[0026] When the utility model is used, two blade seats are horizontally installed in the inverted T-shaped adjustment slide groove, and the blade is installed in the blade groove of the blade seat by fastening the bolts. The fastening bolts are pre-tightened first, and then the blade position is finely adjusted by rotating the adjustment bolts and squeezing the fastening bolts according to the scale to achieve the required size position.

[0027] The blade seat of the utility model contacts the cutter body through three surfaces, namely, the bottom surface of the blade seat, the side surface of the blade and the inner groove. The contact surface between the blade seat and the cutter body is larger, the blade seat is not easy to loosen and the cutting rigidity is good.

[0028] The above-described embodiment is only a preferred solution of the present invention and does not limit the present invention in any form. There are other variations and modifications without exceeding the technical solution described in the claims.

Claims

1. A heavy-cutting double-edged rough boring tool, comprising a tool body (1) and two blade seats (2), characterized in that: The upper end surface of the knife body (1) is transversely penetrated by an adjustment slot (8) having an inverted T-shaped cross section, and the two blade seats (2) are transversely installed in the inverted T-shaped adjustment slot. Inwardly protruding slide rails (13) are formed on both sides above the adjustment slot (8) on the knife body (1), and the blade seat (2) is provided with an inner groove opening (9) corresponding to the slide rail (13) so that the blade seat (2) can be moved and adjusted along the adjustment slot (8) and the slide rail (13). The knife body (1) is provided with fastening bolt mounting holes on both sides of the adjustment slot (8), and fastening bolts (6) are installed in the fastening bolt mounting holes. The two blade seats (2) are respectively provided with adjustment holes (11), and the fastening bolts (6) pass through the adjustment holes (11) to fasten the two blade seats (2) in the adjustment slot (8).

2. The heavy-cutting double-edged rough boring tool according to claim 1, characterized in that: An adjusting bolt hole is transversely opened on one side of the two blade seats (2), and an adjusting bolt (10) is installed in the inner thread of the adjusting bolt hole. The end of the adjusting bolt (10) is pressed on the bolt rod of the fastening bolt (6).

3. The heavy-cutting double-edged rough boring tool according to claim 1, characterized in that: The adjustment hole (11) is a waist-shaped hole.

4. The heavy-cutting double-edged rough boring tool according to claim 1, characterized in that: A scale (12) is correspondingly provided on the outer side of the upper portion of the blade seat (2), and a scale pointer is correspondingly provided on the blade body.

5. The heavy-cutting double-edged rough boring tool according to claim 1, characterized in that: The blade seat (2) is provided with a blade groove, in which a blade (7) is fastened and installed by bolts.

6. The heavy-cutting double-edged rough boring tool according to claim 1, characterized in that: The lower surface of the slide rail (13) is an inclined surface.

7. The heavy-cutting double-edged rough boring tool according to claim 1, characterized in that: The fastening bolt (6) and the adjusting bolt (10) are respectively hexagon socket bolts.