Srb aerodynamic skiving and rolling tool holder and tool

Abstract

The utility model provides a kind of SRB pneumatic skiving and rolling cutter holder and cutter, including holder body, the cross section of holder body is L-shaped, a blade mounting groove is provided on the longitudinal side wall of the front female angle of holder body, the blade mounting groove is used to realize the installation of any one of WNMG08 series blade, after any one of WNMG08 series blade is installed in the blade mounting groove, one sub-nose of its blade is exposed above the blade mounting groove, a blade fixing threaded hole is provided on the right side wall of the blade mounting groove. Cutter includes the above-mentioned holder, any one of WNMG08 series blade and pressing block. The holder can realize the installation and fixation of WNMG08 series blade, and the inner tube of cold-drawn tube can be processed using WNMG08 series blade. Because the price of WNMG08 series blade is low, the processing cost of the inner tube of cold-drawn tube can be reduced.

Description

Technical Field

[0001] This utility model relates to the field of deep hole boring and finishing tool technology, specifically an SRB pneumatic scraping and burnishing tool holder and tool. Background Technology

[0002] SRB pneumatic scraping and burnishing tools are often used for boring of cold-drawn tubes, and they have a high degree of automation, efficiency and processing quality.

[0003] Currently, the commonly used inserts on SRB pneumatic scraping and burnishing tools are R420.37 inserts. This type of insert has a single specification and a high value. Due to the poor versatility of the insert, each insert can only be machined at two cutting edges, resulting in a high machining cost per insert, which in turn leads to a high cost for boring cold-drawn tubes. Utility Model Content

[0004] The purpose of this invention is to provide an SRB pneumatic scraping and burnishing tool holder and tool. This tool holder can install and fix WNMG08 series inserts, and the WNMG08 series inserts can be used to perform inner tube machining of cold-drawn tubes. Because the WNMG08 series inserts are inexpensive, the inner tube machining cost of cold-drawn tubes can be reduced.

[0005] The technical solution adopted by this utility model to solve its technical problem is: an SRB pneumatic scraping and burnishing tool holder and tool, including a tool holder body, the cross-section of the tool holder body is L-shaped, and a blade mounting groove is provided on the longitudinal side wall of the front internal corner of the tool holder body. The blade mounting groove is used to install any blade in the WNMG08 series. After any blade in the WNMG08 series is installed in the blade mounting groove, one of its secondary blade tips is exposed above the blade mounting groove. A blade fixing threaded hole is provided on the right side wall of the blade mounting groove.

[0006] Preferably, the angle between the right boundary of the longitudinal section in the middle of the blade mounting groove and the vertical sidewall of the tool holder body in the vertical plane is β, where 10°≤β≤12°; the angle between the upper horizontal boundary of the blade mounting groove and the vertical sidewall of the tool holder body in the horizontal plane is α, where 2°≤α≤4°.

[0007] Furthermore, a pressure block groove is provided on the transverse side wall of the front internal corner of the tool holder body, located on the left side of the blade mounting groove. The pressure block groove is connected to the blade mounting groove, and a pressure block fixing threaded hole is provided on the bottom side wall of the pressure block groove.

[0008] Furthermore, a limiting arc-shaped groove is provided on both the front and rear sides of the upper part of the blade mounting groove, and the limiting arc-shaped groove corresponds to the main cutting tip of any blade in the WNMG08 series blades.

[0009] Furthermore, the bottom right side of the briquetting groove is lower than the bottom of the blade mounting groove.

[0010] An SRB pneumatic scraping and burnishing cutter includes the aforementioned SRB pneumatic scraping and burnishing cutter holder, in which any one of the WNMG08 series inserts is fixedly mounted with screws in the insert mounting slot, and in which a pressure block for pressing down on the left side wall of the insert is fixed with screws in the pressure block slot.

[0011] The beneficial effects of this utility model are as follows: The tool holder structure of this utility model is simple and easy to manufacture; the tool holder can be used to install and fix WNMG08 series tools in the tool mounting slot, and the inner tube boring of cold-drawn tubes can be achieved using WNMG08 series tools. Because the price of WNMG08 series tools is low, and the cutting edge at the secondary tip of the WNMG08 series tools discarded from existing lathes can be used for the inner tube boring of cold-drawn tubes, the cost of inner tube boring of cold-drawn tubes is greatly reduced; the two limiting arc grooves can limit the vertical movement of the tool installed in the tool mounting slot, thereby improving the installation stability of the tool in the tool mounting slot, and thus improving the machining accuracy of the tool on the cold-drawn tube; the pressure block is used to press and fix the left side of the tool, which helps to improve the stability of the tool in the left and right directions, and thus also helps to improve the machining accuracy of the tool on the cold-drawn tube. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some preferred embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the overall structure of the tool holder in this utility model;

[0014] Figure 2 This is a first-view structural diagram of the tool holder in this utility model;

[0015] Figure 3 This is a schematic diagram of the tool holder structure from a second perspective in this utility model;

[0016] Figure 4 A longitudinal sectional view of the middle part of the tool holder mounting slot;

[0017] Figure 5 This is a schematic diagram of the overall structure of the cutting tool in this utility model;

[0018] Figure 6 for Figure 2 Enlarged view of point A in the middle;

[0019] Figure 7 for Figure 2 Enlarged view at point B in the middle;

[0020] Figure 8 This is a structural diagram of one of the existing WNMG08 series cutting tools;

[0021] In the figure: 1. Tool holder body, 11. Internal corner, 111. Longitudinal side wall, 112. Transverse side wall, 12. Support copper block fixing groove, 13. Sliding hole, 14. Size adjustment hole, 15. Connecting shaft hole, 2. Tool mounting groove, 21. Tool fixing threaded hole, 22. Right side wall, 221. Horizontal boundary, 222. Right side boundary, 23. Limiting arc groove, 3. Pressure block groove, 31. Pressure block fixing threaded hole, 4. WNMG08 series tool, 5. Pressure block, 6. Tool, 61. Main tool tip, 62. Secondary tool tip. Detailed Implementation

[0022] The following will describe specific embodiments and appendices. Figure 1-8 The technical solutions in the embodiments of this utility model are clearly and completely described below. Obviously, the described embodiments are only some preferred embodiments of this utility model, and not all embodiments. Those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0023] Currently, the WNMG08 series inserts on the market generally include models such as WNMG080404, WNMG080408, and WNMG080412. The main tip radius of the WNMG08 series inserts differs slightly, while the rest of the structure is the same. Furthermore, the cutting edge at the secondary tip of the WNMG08 series inserts is capable of boring cold-drawn tubes. (See attached image.) Figure 8 The insert 6 shown is a specification of the WNMG08 series inserts. Insert 6 mainly includes a main cutting tip 61 and a secondary cutting tip 62. The WNMG08 series inserts are relatively inexpensive, and the cutting edge at the secondary cutting tip of WNMG08 series inserts that are no longer usable on lathes is not used.

[0024] This utility model provides an SRB pneumatic scraping and burnishing tool holder (such as...) Figure 1As shown), it includes a tool holder body 1, the cross-section of which is L-shaped. The structure of the tool holder body 1 is basically the same as that of the tool holder used to fix and install R420.37 inserts in the existing SRB pneumatic scraping and burnishing tool. For example, a support copper block fixing groove 12, a sliding hole 13, a size adjustment hole 14, and a connecting shaft hole 15 are also provided at the corresponding positions of the tool holder body 1. When performing actual machining of the tool holder body 1, it can be adapted to the insert installation area based on the structure of the tool holder for installing R420.37 inserts, and the other related structural features do not need to be modified. The specific implementation of the adaptation improvement of the insert installation area is as follows: an insert installation groove 2 is provided on the longitudinal side wall 111 of the front internal corner 11 of the tool holder body 1. The insert installation groove 2 is used to install any insert in the WNMG08 series, such as WNM G080404, WNMG080408, or WNMG080412 inserts can all be fixedly installed in the insert mounting slot 2. After any insert from the WNMG08 series is installed in the insert mounting slot 2, one of its secondary cutting tips is exposed above the insert mounting slot 2, which facilitates the boring of cold-drawn tubes using the cutting edge at the secondary cutting tip. Specifically, when insert 6 is fixedly installed in the insert mounting slot 2, one secondary cutting tip 62 is above the insert mounting slot 2, and one main cutting tip 61 is located in the inner lower groove of the insert mounting slot 2. The secondary cutting tips of each insert in the WNMG08 series have the same structural dimensions. Therefore, when different specifications of WNMG08 series inserts are installed in the insert mounting slot 2, they can all be used to bore cold-drawn tubes. An insert fixing threaded hole 21 is provided on the right side wall 22 of the insert mounting slot 2.

[0025] Based on the above embodiments, to facilitate the boring of cold-drawn tubes using WNMG08 series inserts, the angle between the right boundary 222 of the longitudinal section in the middle of the insert mounting groove 2 and the vertical sidewall of the tool holder body 1 in the vertical plane is β, where 10°≤β≤12°. In this specific embodiment, the value of β can be set to 11°. By setting the β angle, the insert mounting groove 2 is generally tilted to the right at the top. When the insert is installed in the insert mounting groove 2, the insert is also tilted to the right at the top. When the upper part of the insert is tilted to the right... This ensures that the corresponding cutting edge on the upper part of the blade is at its highest point, thus facilitating cutting using the cutting edge. The angle between the upper horizontal boundary of the blade mounting groove 2 and the vertical side wall of the blade holder body in the horizontal plane is α, where 2°≤α≤4°. In this specific embodiment, the value of α can be set to 3°. By setting the angle α, the blade mounting groove 2 is tilted to the right in the front. When the blade is installed in the blade mounting groove 2, the blade is also tilted to the right in the front. When the blade is tilted to the right in the front, it is easier to remove cutting chips when cutting with the cutting edge on the upper part of the blade.

[0026] Based on the above embodiments, in order to improve the installation stability of the blade in the left and right directions in the blade mounting groove 2, a pressure block groove 3 located on the left side of the blade mounting groove 2 is provided on the transverse side wall 112 of the front internal corner 11 of the blade holder body 1. The pressure block groove 3 is connected to the blade mounting groove 2, and a pressure block fixing threaded hole 31 is provided on the bottom side wall of the pressure block groove 3. The pressure block installed in the pressure block groove 3 can be used to press and fix the blade, thereby improving the installation stability of the blade in the blade mounting groove 2.

[0027] Based on the above embodiments, in order to improve the stability of the blade in the vertical direction within the blade mounting groove 2, a limiting arc groove 23 is provided on both the front and rear sides of the upper part of the blade mounting groove 2. The limiting arc groove 23 corresponds to the main cutting tip of any blade in the WNMG08 series. For example, after the blade 6 is installed in the blade mounting groove 2, the two main cutting tips 61 on the upper left and right sides are locked in the corresponding limiting arc groove 23.

[0028] Based on the above embodiments, in order to facilitate the smooth installation of the blade in the blade mounting groove 2, the bottom right side of the pressure block groove 3 is lower than the bottom of the blade mounting groove 2. According to the above design, the blade can be directly pushed into the blade mounting groove 2 laterally when installing the blade.

[0029] This utility model also provides an SRB pneumatic scraping and burnishing tool, including the SRB pneumatic scraping and burnishing tool holder described in the above embodiment. Any one of the WNMG08 series blades is fixedly installed in the blade mounting groove 2 using screws. In practical application, after placing the blade 6 in the blade mounting groove 2, a screw is passed through the through hole on the blade 6 and then tightened in the blade fixing threaded hole 21, thus fixing the blade 6 in the blade mounting groove 2. A pressure block 5 for pressing the left side wall of the blade is fixed in the pressure block groove 3 using screws. Specifically, a through hole corresponding to the pressure block fixing threaded hole 31 is provided on the pressure block 5. A screw is passed through the through hole on the pressure block 5 and then tightened in the pressure block fixing threaded hole, thus fixing the pressure block 5 in the pressure block groove 3.

[0030] In this utility model, "front", "rear", "up", "down", "left", and "right" are all relative positions used to facilitate the description of positional relationships, and therefore cannot be understood as absolute positions as a limitation on the scope of protection.

[0031] Except for the technical features in the instruction manual, all of these are technologies known to those skilled in the art.

[0032] The preferred embodiments and examples of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments and examples. For those skilled in the art, several improvements and modifications can be made without departing from the concept of the present invention, and these improvements and modifications should also be considered within the protection scope of the present invention.

Claims

1. An SRB pneumatic scraping and burnishing tool holder, comprising a tool holder body, the cross-section of which is L-shaped, characterized in that, A blade mounting groove is provided on the longitudinal side wall of the front internal corner of the blade holder body. The blade mounting groove is used to install any blade in the WNMG08 series. After any blade in the WNMG08 series is installed in the blade mounting groove, one of its secondary blade tips is exposed above the blade mounting groove. A blade fixing threaded hole is provided on the right side wall of the blade mounting groove.

2. The SRB pneumatic scraping and burnishing tool holder according to claim 1, characterized in that, The angle between the right boundary of the longitudinal section in the middle of the blade mounting groove and the vertical sidewall of the tool holder body in the vertical plane is β, 10°≤β≤12°; the angle between the upper horizontal boundary of the blade mounting groove and the vertical sidewall of the tool holder body in the horizontal plane is 2°≤α≤4°.

3. The SRB pneumatic scraping and burnishing tool holder according to claim 2, characterized in that, A pressure block groove is provided on the transverse side wall of the front internal corner of the tool holder body, located to the left of the blade mounting groove. The pressure block groove is connected to the blade mounting groove, and a pressure block fixing threaded hole is provided on the bottom side wall of the pressure block groove.

4. The SRB pneumatic scraping and burnishing tool holder according to claim 3, characterized in that, A limiting arc groove is provided on both the front and rear sides of the upper part of the blade mounting groove, and the limiting arc groove corresponds to the main cutting tip of any blade in the WNMG08 series blades.

5. The SRB pneumatic scraping and burnishing tool holder according to claim 4, characterized in that, The bottom right side of the briquetting groove is lower than the bottom of the blade mounting groove.

6. An SRB pneumatic scraping and burnishing cutter, characterized in that, The SRB pneumatic scraping and burnishing tool holder according to any one of claims 3-5 includes a WNMG08 series insert fixedly mounted in the insert mounting slot by screws, and a pressure block for pressing the left side wall of the insert fixedly in the pressure block slot by screws.

Images