CN215846152U - Thread tool for machining internal threads - Google Patents
Thread tool for machining internal threads Download PDFInfo
- Publication number
- CN215846152U CN215846152U CN202122197414.6U CN202122197414U CN215846152U CN 215846152 U CN215846152 U CN 215846152U CN 202122197414 U CN202122197414 U CN 202122197414U CN 215846152 U CN215846152 U CN 215846152U
- Authority
- CN
- China
- Prior art keywords
- tool
- threading
- internal threads
- mounting
- machining internal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model provides a thread cutter for processing internal threads, which comprises a cutter holder and at least one thread turning blade for processing internal threads, wherein the cutter holder is provided with a central axis, and each thread turning blade is spirally arranged on the cutter holder around the central axis of the cutter holder; by adopting the thread cutting tool, when the internal thread is machined, the internal thread is obtained by cutting the part through each thread turning blade, so that the cutting resistance is reduced, the machining precision of the thread is ensured, meanwhile, the service life of the thread turning blade is prolonged, and the cost is reduced.
Description
Technical Field
The utility model belongs to the field of machining tools, and particularly relates to a threaded tool for machining internal threads.
Background
The reducer casing is an important part on the axle, and generally has high requirements on the machining precision. The reducer shell is provided with a differential reducer shell adjusting internal thread, when the differential reducer shell adjusting internal thread is machined, a screw tap is usually adopted for tapping, and due to the fact that the external diameter of the differential reducer shell internal thread is large, the thread is thin, tapping resistance is large due to the fact that the screw tap is adopted for tapping, the accuracy of the internal thread is affected, and the screw tap is prone to being damaged.
SUMMERY OF THE UTILITY MODEL
In view of the above-mentioned drawbacks of the prior art, it is an object of the present invention to provide a threading tool for machining an internal thread, which can reduce cutting resistance and improve thread accuracy, and which can also improve the tool life when machining an internal thread.
In order to achieve the above and other related objects, the present invention provides a threading tool for machining internal threads, comprising a tool holder and at least one threading tool insert for machining internal threads, the tool holder having a central axis, each threading tool insert being arranged on the tool holder spirally about the central axis of the tool holder.
Optionally, each threading insert is gradually increased in distance from the central axis of the tool holder from front to back in the direction of the central axis of the tool holder.
Optionally, the tool holder is uniformly provided with mounting bosses around a central axis of the tool holder for mounting the threading machine blades, and the threading machine blades are respectively arranged on the mounting bosses.
Optionally, the side surface of the mounting boss, which is away from the rotation direction of the tool apron, is an arc surface recessed into the mounting boss.
Optionally, a connecting piece is arranged between each threading tool piece and the tool holder, each mounting boss is provided with a first mounting groove for mounting each connecting piece, each connecting piece is arranged in each first mounting groove, each connecting piece is provided with a second mounting groove for mounting each threading tool piece, and each threading tool is arranged in each second mounting groove.
Optionally, each of the connecting members is provided with a support boss for supporting a rear angle of a nose of the threading tool.
Optionally, the connecting piece further comprises an axial adjusting piece for adjusting the axial position of the connecting piece, and the axial adjusting piece is arranged on the mounting boss and is abutted against the connecting piece in an axially adjustable manner.
Optionally, the axial adjusting member is an axial adjusting screw, an axial adjusting threaded hole communicated with the first mounting groove is formed in the mounting boss along the central axis, and the axial adjusting screw is arranged in the axial adjusting threaded hole and abuts against the connecting member.
Optionally, the connecting device further comprises a radial adjusting piece for adjusting the radial position of each connecting piece, and the radial adjusting piece is arranged on the connecting piece and is abutted against the mounting boss in a radially adjustable manner.
Optionally, the radial adjusting member is a radial adjusting screw, a radial adjusting threaded hole penetrating through the connecting member is radially formed in the connecting member along the tool holder, and the radial adjusting screw is arranged in the radial adjusting threaded hole and abuts against the side surface of the first mounting groove.
As described above, the thread cutting tool for machining an internal thread according to the present invention has the following advantageous effects:
by adopting the thread cutting tool, when the internal thread is machined, the internal thread is obtained by cutting the part through each thread turning blade, and compared with the tapping of a screw tap, the cutting resistance is reduced, so that the machining precision of the thread is ensured, meanwhile, the service life of the thread turning blade is prolonged, and the cost is reduced.
Drawings
FIG. 1 is an elevation view of one example of a threading tool of the present invention;
FIG. 2 is a right side view of FIG. 1;
FIG. 3 is an axial schematic view of FIG. 1;
FIG. 4 is a partial exploded view of FIG. 3;
FIG. 5 is an isometric view of the connector of FIG. 3;
figure 6 is an isometric view of the threading insert in figure 3.
Part number description:
1-a tool apron; 11-mounting a boss; 111-an arc-shaped face; 112-a first mounting groove; 113-axial adjustment threaded hole;
2-threading cutting blade; 21-a blade base; 22-a knife tip; 221-tool nose cutting angle; 222-nose relief angle;
3-a connector; 31-a first mounting groove; 32-a support boss; 33-radial adjustment threaded hole; 34-mounting a counter bore; 35-strip shaped holes;
4-a first fastening screw;
5-a second fastening screw;
6-axial adjustment;
7-radial adjustment.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.
In the following embodiments, the front and the rear are relative concepts, the front is the left end of the tool apron in fig. 2, and the rear is the right end of the tool apron in fig. 2.
As shown in fig. 1-6, the present invention provides a threading tool for processing an internal thread, including a tool holder 1 and at least one threading tool 2 for adding an internal thread, the tool holder 1 having a central axis, each threading tool 2 being spirally mounted on the tool holder 1 around the central axis of the tool holder 1, that is, each threading tool 2 being uniformly distributed around the central axis of the tool holder, along the opposite direction of the rotation of the tool holder (in the direction K in fig. 1), each threading tool 2 gradually approaches to the rear end of the tool holder 2, and the axial distance between two adjacent threading tools 2 is fixed (the axial distance here is the pitch of the internal thread), thereby forming a spiral arrangement; the internal thread can be a differential reducer casing adjusting internal thread of a reducer casing or an internal thread of other components.
When processing the internal thread of a part, the tool apron 1 is installed on a driving shaft of a machine tool, the tool apron 1 is driven by the driving shaft of the machine tool to move towards one side close to the part along the axial direction of the tool apron, and meanwhile, the tool apron 1 is driven to rotate along the direction K in the figure 1, so that each threading lathe blade 2 cuts the part, and the differential internal thread is processed.
Adopt this screw thread cutter, when processing the internal thread, carry out cutting process to the part through each thread turning tool piece 2 and obtain the internal thread, compare in the screw tap and attack, reduced the cutting resistance to guarantee the machining precision of screw thread, simultaneously, still improved this thread turning tool piece 2's life, reduce cost still can reduce the drive power of lathe drive blade holder, the removal of the blade holder of being convenient for.
In some embodiments, each threading insert 2 is located at a gradually increasing distance from the central axis of the insert seat from the front to the rear in the direction of the central axis of the insert seat; by adopting the structure, when the internal thread is processed, the cutting resistance can be further reduced, and the processing precision of the internal thread is improved, so that the abrasion of the thread turning blade 2 is reduced, the service life of the thread cutter is prolonged, and the cost is reduced.
Specifically, the threading tool pieces 2 are four, the four threading tool pieces 2 are spirally arranged on the tool apron 1 around the central axis of the tool apron, and the distance between each threading tool piece 2 and the central axis of the tool apron is gradually increased by 0.2mm from front to back along the central axis of the tool apron.
In some embodiments, the tool apron 1 is uniformly provided with mounting bosses 11 for mounting the threading machine blades 2 around the central axis of the tool apron, and the threading machine blades 2 are respectively mounted on the mounting bosses 11; through setting up each installation boss 11, can increase the range of arranging of threading lathe blade 2, each installation boss 11 sets up to split type structure, has still increased compact structure nature, has reduced weight (avoids setting up to integral, and increases the volume and the weight of installation boss).
Specifically, each mounting boss 11 and the tool apron 1 are manufactured in an integrated mode, so that assembly is facilitated, the structural strength of the joint of the mounting boss 11 and the tool apron 1 can be enhanced, and the mounting bosses and the tool apron can be connected into a whole through bolts, welding or other forms of fixed connection according to specific needs.
In some embodiments, the side surface of the mounting boss 11, which is away from the rotation direction of the tool apron, is an arc surface 111 which is recessed into the mounting boss 11, and by adopting the arrangement of the arc surface 111, when an internal thread is machined, the stress capacity of the mounting boss 11 can be increased, the structural strength is improved, so that the reliability of thread machining is improved, and the machining precision is ensured; of course, the structural strength can be increased by adopting a mode of arranging the reinforcing ribs, and the reinforcing ribs can be selected according to specific requirements.
In some embodiments, a connecting member 3 is installed between each threading insert 2 and the tool holder, each mounting boss 11 is provided with a first mounting groove 112 for mounting each connecting member 3, each connecting member 3 is installed in each first mounting groove 112 and fixed by a first fastening screw 4, each connecting member 3 is provided with a second mounting groove 31 for mounting each threading insert 2, and each threading insert 2 is installed in each second mounting groove 31 and fixed by a second fastening screw 5. Through setting up this connecting piece 3, not only reduced the processing degree of difficulty, be convenient for manufacturing, still improved the interchangeability of spare part, avoided damaging the whole more because of single part, reduced manufacturing cost.
In some embodiments, the threading insert 2 includes an insert base body 21 and an insert tip 22 integrally formed with the insert base body, the insert base body 21 is mounted in the second mounting groove 31, the insert tip 22 includes a tip cutting angle 221 and a tip relief angle 222, and the holder cutting angle 221 is used for cutting machining. Each connecting piece 3 is provided with a supporting boss 32 for supporting the tool nose back angle 222 of the threading tool, when the tool nose cutting angle 221 is cut, the supporting boss 32 is abutted against the tool nose back angle 222, the strength of the tool nose 12 of the threading tool blade can be improved, the phenomenon that the tool nose cutting angle 221 deforms in the cutting process to influence the processing quality is avoided, and the processing precision of the internal thread is improved.
In some embodiments, the thread cutting tool further comprises an axial adjusting piece 6 for adjusting the axial position of the connecting piece 3, the axial adjusting piece 6 is respectively arranged on the mounting boss 11 and is abutted against the connecting piece 3 in an axially adjustable manner, and the axial adjusting piece is arranged to adjust the axial position of the connecting piece 3 in the axial direction of the tool apron, so that the adjustment of the axial position of the thread turning piece 2 is indirectly realized, the mounting precision of the thread turning piece 2 is improved, and the processing precision of internal threads is improved; the axial direction referred to here is an axial direction along the center axis of the insert seat.
In some embodiments, the axial adjusting member 6 is an axial adjusting screw, the mounting boss 11 is provided with an axial adjusting threaded hole 113 along the central axis, the axial adjusting threaded hole 113 is communicated with the first mounting groove 122, the axial adjusting screw is mounted in the axial adjusting threaded hole 113 and abuts against the connecting member 3, the axial adjusting screw is matched with the axial adjusting threaded hole 113 and abuts against the connecting member 3, and the axial adjusting screw has the advantages of simple structure and convenience in adjustment under the condition of adjusting the axial position of the connecting member 3.
In some embodiments, the threading tool further comprises a radial adjusting member 7 for adjusting the radial position of the connecting member, the radial adjusting member 7 is mounted on the connecting member 3 and abuts against the mounting boss 11 in a radially adjustable manner along the tool holder, and the radial adjusting member 7 is arranged to adjust the position of the connecting member 3 in a radially adjustable manner along the tool holder, so that the adjustment of the radial position of the threading tool bit 2 is achieved, and the mounting accuracy of the threading tool bit 2 is indirectly improved.
In some embodiments, the radial adjusting member 7 is a radial adjusting screw, the connecting member 3 is provided with a radial adjusting threaded hole 33 penetrating through the connecting member along the tool holder in the radial direction, the radial adjusting screw is installed in the radial adjusting threaded hole 33 and abuts against the side surface of the first mounting groove 112, and the radial adjusting screw moves relative to the radial adjusting threaded hole 33, so that the radial position of the connecting member 3 is adjusted.
Specifically, the connecting piece 3 is further provided with a mounting counter bore 34 communicated with the radial adjusting threaded hole 33, the rod part of the radial adjusting screw is mounted in the radial adjusting threaded hole 33, and the head part of the radial adjusting screw is mounted in the mounting counter bore 34, so that interference caused by the fact that the head part of the radial adjusting screw extends out of the mounting counter bore 34 is avoided.
Correspondingly, a strip-shaped through hole 35 is further formed in the connecting piece 3, and the first fastening screw 4 penetrates through the strip-shaped through hole 35.
The assembly step of the thread cutter:
1) firstly, the connecting piece 3 is installed on the first installation groove 112, and then the first fastening screw 4 is inserted into the strip-shaped through hole and screwed into the installation boss 11 for pre-tightening (at this time, the connecting piece 3 can move in the first installation groove).
2) The axial adjustment screw and the radial adjustment screw are respectively installed in the axial adjustment screw hole 113 and the radial adjustment screw hole 33.
3) And respectively installing the threading blades 2 in the second installation grooves 31 of the connecting pieces to be fixed.
4) And respectively adjusting the axial adjusting screw and the radial adjusting screw, and setting the tool by using a tool setting gauge.
5) After the axial adjusting screw and the radial adjusting screw are adjusted in place, the connecting piece 3 is fixed in the first mounting groove 31 by screwing the first fastening screw 4.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the utility model. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (10)
1. A threading tool for machining internal threads, characterized in that: the thread turning tool comprises a tool apron and at least one thread turning tool blade used for machining internal threads, wherein the tool apron is provided with a central axis, and each thread turning tool blade is spirally arranged on the tool apron around the central axis of the tool apron.
2. A threading tool for machining internal threads according to claim 1, characterized in that: the distance between each threading tool piece and the central axis of the tool holder is gradually increased from front to back along the central axis of the tool holder.
3. A threading tool for machining internal threads according to claim 1, characterized in that: the thread turning tool is characterized in that mounting bosses for mounting each thread turning blade are uniformly arranged on the tool apron around the central axis of the tool apron, and each thread turning blade is arranged on each mounting boss respectively.
4. A threading tool for machining internal threads according to claim 3 wherein: the side surface of the mounting boss, which is far away from the rotating direction of the tool apron, is an arc-shaped surface which is sunken towards the inside of the mounting boss.
5. A threading tool for machining internal threads according to claim 1, characterized in that: connecting pieces are arranged between each threading tool piece and the tool apron, each mounting boss is provided with a first mounting groove for mounting each connecting piece, each connecting piece is arranged in each first mounting groove, each connecting piece is provided with a second mounting groove for mounting each threading tool piece, and each threading tool is arranged in each second mounting groove.
6. A threading tool for machining internal threads according to claim 1, characterized in that: and each connecting piece is provided with a supporting boss for supporting the rear angle of the tool nose of the threading tool.
7. A threading tool for machining internal threads according to claim 5, characterized in that: the axial adjusting piece is arranged on the mounting boss and is abutted against the connecting piece in an axially adjustable manner.
8. A threading tool for machining internal threads according to claim 7, characterized in that: the axial adjusting piece is an axial adjusting screw, an axial adjusting threaded hole communicated with the first mounting groove is formed in the mounting boss along the central axis, and the axial adjusting screw is arranged in the axial adjusting threaded hole and abuts against the connecting piece.
9. A threading tool for machining internal threads according to claim 7, characterized in that: the radial adjusting pieces are respectively arranged on the connecting pieces and abut against the mounting boss along the radial direction in an adjustable manner.
10. A threading tool for machining internal threads according to claim 9, characterized in that: the radial adjusting part is a radial adjusting screw, a radial adjusting threaded hole penetrating through the connecting part is radially formed in the connecting part along the tool apron, and the radial adjusting screw is arranged in the radial adjusting threaded hole and abuts against the side face of the first mounting groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122197414.6U CN215846152U (en) | 2021-09-10 | 2021-09-10 | Thread tool for machining internal threads |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122197414.6U CN215846152U (en) | 2021-09-10 | 2021-09-10 | Thread tool for machining internal threads |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215846152U true CN215846152U (en) | 2022-02-18 |
Family
ID=80258554
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122197414.6U Active CN215846152U (en) | 2021-09-10 | 2021-09-10 | Thread tool for machining internal threads |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215846152U (en) |
-
2021
- 2021-09-10 CN CN202122197414.6U patent/CN215846152U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104308275B (en) | Adjustable excircle cylinder process tool and its application method | |
| CN111408773B (en) | Inclination angle eccentric composite hole milling device and working method | |
| CN215846152U (en) | Thread tool for machining internal threads | |
| CN209272507U (en) | Centreless lathe cutter head | |
| CN210755238U (en) | Cutter assembly | |
| CN112157297A (en) | Round pin centering single-limit side pressure locking crown drill bit | |
| CN217045704U (en) | Deep hole grinding drive plate for machining live center shell | |
| CN211588667U (en) | Cutting tool | |
| CN111570915B (en) | Reamer special for steering knuckle and machining method of steering knuckle | |
| CN111673194B (en) | A compound reamer for new energy automobile motor casing | |
| CN215090877U (en) | Novel draw formula crown tool bit after cooling | |
| CN212070418U (en) | Cutter for boring | |
| CN207414385U (en) | A kind of support interior cooling turning tool of bearing shell bore hole | |
| CN209754104U (en) | Length-adjustable one-step forming double-sided chamfering cutter bar | |
| CN208019472U (en) | A kind of deep device such as lathe centering | |
| CN112536618A (en) | Axial and radial adjusting mechanism for cutter | |
| CN215880041U (en) | Milling cutter with chamfering function | |
| CN217018768U (en) | Corn rough milling cutter | |
| CN219292849U (en) | Angle-adjustable hard alloy milling cutter for automobile machining | |
| CN110586972A (en) | Lathe tool self-transposition device | |
| CN217749388U (en) | Fine-adjustable boring cutter for machining conical surface | |
| CN211360692U (en) | Cutting tool | |
| CN212665003U (en) | Cutter with full-tooth unequal-distance structure | |
| CN214920776U (en) | Rotary positioning tool-changing head type drill bit | |
| CN220805612U (en) | Welded PCD drum milling cutter for processing spherical surface |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |