Deep hole machining tool
By designing a deep hole machining tool with ball support and adjustable cutting head, the deviation and wear problems caused by the lack of support in the deep hole machining of long-axis tools is solved, and efficient and accurate deep hole machining is achieved. And extend the service life of the tool.
Patent Information
- Application Number
- CN202420364225.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Priority Date
- 2023-04-10
- Filing Date
- 2024-02-27
- Publication Date
- 2025-02-25
- Estimated Expiration
- 2034-02-27
AI Technical Summary
During the deep hole processing of large parts, if the long-axis tool does not support and contact the hole wall after it extends into the deep hole, it is easy to cause the tool center to shift, resulting in unqualified processing. At the same time, the tool extends into the deep hole for a long time to cut. The cutter head is seriously worn, and the entire tool needs to be replaced with fixed installation head, which is time-consuming and laborious.
A deep hole processing tool is designed, including tailstock, drill rod, cutter plate, cutter head and support bolt. It extends into the edge of the deep hole through the drill rod and cutter plate, and uses the balls of the support bolt to contact the hole wall to reduce friction It also provides support, and at the same time adjusts the position of the cutting head through the rotation of the screw, achieving efficient cutting of the inner wall of the deep hole.
The tool reduces friction through the rolling of the ball and the hole wall, provides support for the tool, improves the accuracy and efficiency of deep hole processing, extends the service life of the tool, avoids processing failure caused by tool offset, and adjusts the tool head Position reduces the frequency of tool replacement.
Smart Images
Figure CN222520031U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of deep hole processing, in particular to a deep hole processing tool. Background Art
[0002] For deep hole processing of large parts, long-axis tools are needed to cut the parts. Once the long-axis tool is inserted into the deep hole, if there is no supporting contact with the hole wall, the center of the long-axis tool will be offset from the center of the deep hole, resulting in unqualified deep hole processing. At the same time, it takes a long time for the long-axis tool to insert into the center of the deep hole for cutting, and the cutter head and the inner wall of the hole will also wear during cutting. If a fixed-mounted cutter head is used, the entire long-axis tool needs to be replaced, which is time-consuming and labor-intensive. Utility Model Content
[0003] In view of the deficiencies in the prior art, the utility model provides a deep hole processing tool having the advantages of supporting and adjusting the cutter head. It solves the problem that once the long-axis tool is inserted into the deep hole, if there is no supporting contact with the hole wall, the center of the long-axis tool will be offset from the center of the deep hole, resulting in unqualified deep hole processing. At the same time, it takes a long time for the long-axis tool to extend into the center of the deep hole for cutting, and the cutter head and the inner wall of the hole will also wear out during cutting. If a fixedly installed cutter head is used, the entire long-axis tool needs to be replaced, which is time-consuming and labor-intensive.
[0004] In order to achieve the purpose of supporting and adjusting the cutter head, the utility model provides the following technical solutions: a deep hole processing tool, comprising a tailstock, a drill rod is fixedly installed on the left side of the tailstock, a cutter disc is fixedly installed on the left end of the drill rod, a cutter head is arranged on the surface of the cutter disc, a through hole is opened on the surface of the cutter disc, a nut is fixedly installed on the inner wall of the through hole, and a support bolt is connected to the internal thread of the nut;
[0005] A mounting seat is fixedly installed on the surface of the cutter disc, a screw rod is rotatably connected inside the mounting seat, a screw rod sleeve is threadedly connected to the outer side of the screw rod, a connecting block is fixedly installed on the outer side of the screw rod sleeve, a strip opening corresponding to the connecting block is opened on the surface of the mounting seat, and a limiting slider is fixedly installed on the inner wall of the cutter head.
[0006] Preferably, one end of the cutter head protrudes to the outside of the cutter disc.
[0007] Preferably, the number of the through holes and the cutter heads are both three, which are arranged at equal intervals, and the cutter head is located between two adjacent through holes.
[0008] Preferably, one end of the support bolt extends to the outside of the cutter disc, and one end of the support bolt is rotatably connected to a ball bearing.
[0009] Preferably, one end of the screw rod passes through and extends to the outside of the mounting seat and is fixedly connected to the handwheel, and the other end of the screw rod is rotatably connected to the inner wall of the mounting seat through a bearing.
[0010] Preferably, one end of the connecting block passing through the strip-shaped opening is fixedly connected to the inner wall of the cutter head.
[0011] Preferably, strip-shaped sliding grooves corresponding to the limiting sliding blocks are provided on both sides of the mounting seat.
[0012] Beneficial effects: The deep hole processing tool extends into the edge of the deep hole through the drill rod and the cutter disc, and by twisting the support bolt, the ball at one end of the support bolt is brought into contact with the hole wall, and then the cutter disc is pushed into the deep hole again, so that the drill rod rotates, and the ball rolls with the hole wall, which not only reduces the friction but also supports the cutter disc extended into the hole; the deep hole processing tool rotates the screw rod in advance, and the screw rod sleeve and the connecting block on the screw rod are displaced, so that the cutter head will protrude from the outer edge of the cutter disc, and the rotating cutter disc and cutter head will cut the inner wall of the deep hole. This method uses the rotation of the screw rod to adjust the position of the cutter head. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 This is a schematic diagram of the front structure of the utility model;
[0014] Figure 2 This is a schematic diagram of the side view of the cutter head of the utility model;
[0015] Figure 3 This is a schematic diagram of the cutaway structure of the cutter head of the utility model;
[0016] Figure 4 It is a schematic diagram of the three-dimensional structure of the cutter head of the utility model.
[0017] In the figure: 1-tailstock, 2-drill rod, 3-cutter disc, 4-cutter head, 31-through hole, 32-nut, 33-support bolt, 34-ball, 41-mounting seat, 42-screw rod, 43-screw rod sleeve, 44-connecting block, 45-strip mouth, 46-limiting slider. DETAILED DESCRIPTION
[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0019] See also Figure 1A deep hole processing tool comprises a tailstock 1, a drill rod 2 is fixedly mounted on the left side of the tailstock 1, a cutter disc 3 is fixedly mounted on the left end of the drill rod 2, a cutter head 4 is arranged on the surface of the cutter disc 3, and one end of the cutter head 4 protrudes to the outside of the cutter disc 3.
[0020] See also Figure 2 The surface of the cutter disc 3 is provided with through holes 31, and the number of through holes 31 and the cutter head 4 are both three, which are arranged at equal intervals, and the cutter head 4 is located between two adjacent through holes 31. At the same time, the through hole 31 can also play the role of debris removal; a nut 32 is fixedly installed on the inner wall of the through hole 31, and a support bolt 33 is connected to the internal thread of the nut 32, one end of the support bolt 33 extends to the outside of the cutter disc 3, and one end of the support bolt 33 is rotatably connected to a ball 34, and the support bolt 33 and the ball 34 are made of tungsten steel to increase the support strength.
[0021] See also Figure 3 A mounting seat 41 is fixedly mounted on the surface of the cutter disc 3, and a screw rod 42 is rotatably connected inside the mounting seat 41. One end of the screw rod 42 penetrates and extends to the outside of the mounting seat 41 and is fixedly connected to the hand wheel, and the other end of the screw rod 42 is rotatably connected to the inner wall of the mounting seat 41 through a bearing. A screw rod sleeve 43 is threadedly connected to the outside of the screw rod 42, and a connecting block 44 is fixedly mounted on the outside of the screw rod sleeve 43. A strip opening 45 corresponding to the connecting block 44 is opened on the surface of the mounting seat 41, and one end of the connecting block 44 penetrates the strip opening 45 and is fixedly connected to the inner wall of the cutter head 4.
[0022] See also Figure 4 A limiting slider 46 is fixedly mounted on the inner wall of the cutter head 4, and strip slide grooves corresponding to the limiting slider 46 are opened on both sides of the mounting seat 41. The cutter head 4 moves horizontally relative to the mounting seat 41 through the limiting slider 46 and the strip slide grooves.
[0023] Working principle: When in use, the drill rod 2 and the cutter disc 3 are inserted into the edge of the deep hole, and the support bolt 33 is twisted to make the ball 34 at one end of the support bolt 33 contact the hole wall, and then the cutter disc 3 is pushed into the deep hole again. In this way, the drill rod 2 rotates, and the ball 34 rolls with the hole wall, which not only reduces the friction, but also supports the cutter disc 3 inserted into the hole.
[0024] The screw rod 42 is rotated in advance, and the screw rod sleeve 43 and the connecting block 44 on the screw rod 42 are displaced, so that the cutter head 4 will protrude from the outer edge of the cutter disc 3. The rotating cutter disc 3 and the cutter head 4 will cut the inner wall of the deep hole. This method utilizes the rotation of the screw rod 42 to adjust the position of the cutter head 4.
Claims
1. A deep hole machining tool, comprising a tailstock (1), characterized in that: A drill rod (2) is fixedly mounted on the left side of the tailstock (1), a cutter head (3) is fixedly mounted on the left end of the drill rod (2), a cutter head (4) is arranged on the surface of the cutter head (3), a through hole (31) is opened on the surface of the cutter head (3), a nut (32) is fixedly mounted on the inner wall of the through hole (31), and a support bolt (33) is connected to the inner thread of the nut (32); A mounting seat (41) is fixedly mounted on the surface of the cutter disc (3); a screw rod (42) is rotatably connected to the interior of the mounting seat (41); a screw rod sleeve (43) is threadedly connected to the outer side of the screw rod (42); a connecting block (44) is fixedly mounted on the outer side of the screw rod sleeve (43); a strip-shaped opening (45) corresponding to the connecting block (44) is formed on the surface of the mounting seat (41); and a limiting slider (46) is fixedly mounted on the inner wall of the cutter head (4).
2. A deep hole processing tool according to claim 1, characterized in that: One end of the cutter head (4) protrudes to the outside of the cutter disc (3).
3. A deep hole processing tool according to claim 1, characterized in that: The through holes (31) and the cutter heads (4) are both three in number and are arranged at equal intervals, and the cutter head (4) is located between two adjacent through holes (31).
4. A deep hole processing tool according to claim 1, characterized in that: One end of the support bolt (33) extends to the outside of the cutter disc (3), and one end of the support bolt (33) is rotatably connected to a ball bearing (34).
5. A deep hole processing tool according to claim 1, characterized in that: One end of the screw rod (42) penetrates and extends to the outside of the mounting seat (41) and is fixedly connected to the hand wheel, and the other end of the screw rod (42) is rotatably connected to the inner wall of the mounting seat (41) via a bearing.
6. A deep hole processing tool according to claim 1, characterized in that: One end of the connection block (44) that passes through the strip-shaped opening (45) is fixedly connected to the inner wall of the cutter head (4).
7. A deep hole processing tool according to claim 1, characterized in that: Strip-shaped sliding grooves corresponding to the limiting sliding blocks (46) are provided on both sides of the mounting seat (41).