Boring bar

Abstract

The utility model discloses a boring bar, and relates to the technical field of metal cutting machining. And external dust and chippings are easy to fall into the bolt hole, so that the interior of the bolt hole is blocked. The boring rod is provided with the boring rod main body and the bolt groove; the bolt grooves are formed in the top end and the bottom end of the boring rod body. And the material blocking structure is arranged on the upper portion of the interior of the bolt groove, the material blocking structure comprises an internal thread groove formed in the upper portion of the interior of the bolt groove, a protective cover arranged in the internal thread groove, external threads evenly arranged on the outer portion of the protective cover and a rotating base arranged in the middle of the top end of the protective cover, and the internal thread groove and the external threads are meshed with each other. The material blocking structure, the rotating base, the protective cover, the internal thread groove, the external thread and the bolt groove are arranged, the protective cover is installed in the bolt groove, external dust and chippings can be conveniently blocked, the dust and the chippings are prevented from falling into the bolt groove as much as possible, and therefore the interior of the bolt groove is blocked.

Description

Technical Field

[0001] The utility model relates to the technical field of metal cutting and processing, in particular to a boring bar. Background Art

[0002] With the improvement of my country's manufacturing capacity, the processing difficulty of deep hole parts has increased. Internal hole processing accounts for a large proportion of metal cutting, accounting for about one-third of the total metal cutting. Boring is a common processing method in the processing of deep hole parts. The tool used for boring is called a boring tool, also known as a boring bar. In the actual production process, the tool is generally installed on the boring bar of the boring machine for rotary feed cutting to achieve hole processing.

[0003] With respect to the above-mentioned related technologies, the applicant believes that in the actual production process, it is necessary to adjust the tool on the boring bar according to the actual processing hole. When the tool is installed, the tool head seat is inserted into the interior of the boring bar, and then the fixing bolt is inserted into the interior of the tool seat through the bolt hole. This makes it convenient to fix the tool. When the tool is cutting metal, external dust and debris can easily fall into the bolt hole, clogging the bolt hole and affecting the disassembly and assembly of the fixing bolt, thereby affecting the replacement of the tool. Utility Model Content

[0004] The utility model aims to provide a boring bar to solve the problem in the above background technology that external dust and debris easily fall into the inside of the bolt hole and block the inside of the bolt hole.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a boring bar, comprising a boring bar body and a bolt groove; the bolt groove is opened at the top and bottom ends of the boring bar body; a material blocking structure is arranged above the inside of the bolt groove, the material blocking structure includes an internal thread groove opened above the inside of the bolt groove, a protective cover arranged inside the internal thread groove, external threads evenly arranged outside the protective cover and a rotating seat arranged in the middle part of the top end of the protective cover, and the internal thread groove and the external thread are meshed with each other.

[0006] By adopting the above technical solution, by installing the protective cover inside the bolt slot, it is possible to conveniently block external dust and debris, and try to prevent dust and debris from falling into the bolt slot and clogging the inside.

[0007] Preferably, a mounting groove is provided at one end of the boring bar body, and a cutter head mechanism is provided at the end of the boring bar body close to the mounting groove, and the cutter head mechanism includes a mounting rod penetrating the inside of the mounting groove, a cutter head seat welded to the end of the mounting rod away from the boring bar body, mounting holes respectively provided at the top and bottom ends of the mounting rod, and a processing cutter head fixed to the end of the cutter head seat away from the mounting rod.

[0008] By adopting the above technical solution, the material can be cut by installing a cutter head mechanism on the boring bar body and rotating it to achieve hole processing.

[0009] Preferably, a protective mechanism is provided on the protective cover, and the protective mechanism includes a sealing gasket arranged at the bottom end of the protective cover, a water-absorbing cotton arranged outside the sealing gasket, and a sealing sleeve arranged outside the top end of the protective cover.

[0010] By adopting the above technical solution and utilizing the absorbent cotton, the water vapor entering the bolt groove can be absorbed, thereby preventing the water vapor from corroding the fixing bolt and causing the fixing bolt to rust.

[0011] Preferably, a fixing bolt passes through the internal thread of the bolt groove, and a protective gasket is sleeved on the outside of the fixing bolt.

[0012] By adopting the above technical solution, the friction performance of the fixing bolt can be improved, and the deviation of the fixing bolt during operation can be avoided as much as possible, thereby effectively improving the stability of the fixing bolt during operation.

[0013] Preferably, an internal thread is provided inside the mounting hole, and the internal thread is connected to the fixing bolt through a threaded connection.

[0014] By adopting the above technical solution, it is convenient to limit the position of the fixing bolt, thereby facilitating the fixing of the mounting rod.

[0015] Preferably, two groups of bolt grooves are provided, and the bolt grooves are symmetrically distributed about the inner center of the boring bar body.

[0016] By adopting the above technical solution, the fixing effect of the fixing bolt on the cutter head mechanism can be effectively improved.

[0017] Preferably, the bolt groove and the axis line of the mounting hole are arranged on the same horizontal line, and the fixing bolt is respectively inserted into the mounting hole and the bolt groove.

[0018] By adopting the above technical solution, the cutter head mechanism can be conveniently installed on the boring bar body.

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] 1. By providing a material blocking structure, a rotating seat, a protective cover, an internal thread groove, an external thread and a bolt groove, and by installing the protective cover inside the bolt groove, it is convenient to block external dust and debris, and try to prevent dust and debris from falling into the bolt groove, thereby clogging the inside;

[0021] 2. By providing a protective mechanism, a sealing sleeve, absorbent cotton and a sealing pad, the absorbent cotton can be used to absorb the water vapor entering the bolt groove, thereby preventing the water vapor from corroding the fixing bolts and causing the fixing bolts to rust. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0023] Figure 2 This is a three-dimensional structural diagram of the cutter head mechanism of the utility model;

[0024] Figure 3 For this utility model Figure 1 The enlarged structural diagram at A in the middle;

[0025] Figure 4 This is a schematic diagram of the overall internal structure of the utility model;

[0026] Figure 5 This is a schematic diagram of the internal structure of the bolt slot of the utility model

[0027] Figure 6 For this utility model Figure 5 Enlarged structural diagram at B in the middle.

[0028] In the figure: 1. tool head mechanism; 101. machining tool head; 102. tool head seat; 103. mounting rod; 104. mounting hole; 2. boring bar body; 3. material blocking structure; 301. rotating seat; 302. protective cover; 303. internal thread groove; 304. external thread; 4. protective mechanism; 401. sealing sleeve; 402. absorbent cotton; 403. sealing gasket; 5. mounting groove; 6. bolt groove; 7. protective gasket; 8. fixing bolt. DETAILED DESCRIPTION

[0029] 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.

[0030] Embodiment 1

[0031] See also Figures 1 to 6The utility model provides a technical solution: a boring bar, including a boring bar body 2, a bolt groove 6 and a material blocking structure 3; the bolt groove 6 is opened at the top and bottom ends of the boring bar body 2; the material blocking structure 3 is arranged above the inside of the bolt groove 6, which can conveniently block external dust and impurities, and the material blocking structure 3 includes an internal thread groove 303 opened above the inside of the bolt groove 6 and a protective cover 302 arranged inside the internal thread groove 303; it can conveniently block external dust and debris, and try to avoid dust and debris falling into the bolt groove 6 to block the inside, thereby affecting the disassembly and assembly of the fixing bolt 8; the external threads 304 evenly arranged on the outside of the protective cover 302 and the rotating seat 301 arranged at the middle part of the top of the protective cover 302, the internal thread groove 303 and the external thread 304 are meshed with each other, the external thread 304 on the protective cover 302 is meshed with the internal thread groove 303 on the bolt groove 6, and the protective cover 302 can be installed inside the bolt groove 6.

[0032] Embodiment 2

[0033] A mounting groove 5 is provided at one end of the boring bar body 2 to facilitate the positioning of accessories; a cutter head mechanism 1 is provided at one end of the boring bar body 2 close to the mounting groove 5, and the material can be cut by installing the cutter head mechanism 1 on the boring bar body 2 and rotating it to achieve hole processing. The cutter head mechanism 1 includes a mounting rod 103 that passes through the mounting groove 5, and the mounting rod 103 can facilitate the connection of the cutter head mechanism 1; a cutter head seat 102 welded to the end of the mounting rod 103 away from the boring bar body 2, and the cutter head seat 102 can improve the bearing capacity; mounting holes 104 are respectively provided at the top and bottom ends of the mounting rod 103; a processing cutter head 101 is fixed to the end of the cutter head seat 102 away from the mounting rod 103; the processing cutter head 101 can effectively cut the material.

[0034] Embodiment 3

[0035] A protective mechanism 4 is provided on the protective cover 302, which can absorb water vapor entering into the bolt groove 6; the protective mechanism 4 includes a sealing gasket 403 arranged at the bottom end of the protective cover 302, the sealing gasket 403 can improve the sealing performance of the inside of the bolt groove 6, and the water-absorbing cotton 402 arranged outside the sealing gasket 403 can absorb the water vapor entering into the bolt groove 6 by utilizing the work of the water-absorbing cotton 402, and try to avoid the water vapor from corroding the fixing bolt 8 and causing the fixing bolt 8 to rust, thereby effectively extending the service life of the fixing bolt 8; a sealing sleeve 401 is arranged on the outside of the top end of the protective cover 302, and the sealing sleeve 401 is set to be annular, so as to further improve the sealing performance of the inside of the bolt groove 6, and try to avoid water vapor from entering the inside of the bolt groove 6 through the gap between the protective cover 302 and the bolt groove 6.

[0036] Embodiment 4

[0037] The internal thread of the bolt groove 6 is penetrated by a fixing bolt 8, and the cutter head mechanism 1 can be conveniently fixed by the fixing bolt 8; thereby, the stability of the cutter head mechanism 1 during operation is improved; two groups of bolt grooves 6 are provided, and the bolt grooves 6 are symmetrically distributed about the internal center of the boring bar body 2; the fixing effect of the fixing bolt 8 on the cutter head mechanism 1 can be effectively improved; a protective gasket 7 is provided on the outside of the fixing bolt 8, and the protective gasket 7 can improve the friction performance of the fixing bolt 8 and try to avoid the displacement of the fixing bolt 8 during operation, thereby effectively improving the stability of the fixing bolt 8 during operation; an internal thread is provided inside the mounting hole 104, and the internal thread and the fixing bolt 8 are connected by a thread, so the fixing bolt 8 can be conveniently fixed; the bolt groove 6 and the axial center line of the mounting hole 104 are arranged on the same horizontal line, and the fixing bolt 8 is respectively inserted into the mounting hole 104 and the bolt groove 6; the cutter head mechanism 1 can be installed on the boring bar body 2, so the cutter head mechanism 1 can be conveniently removed and replaced by removing the fixing bolt 8, which effectively improves the practicality of the device.

[0038] Working principle: First, when the cutter head mechanism 1 needs to be replaced, the mounting rod 103 is inserted into the mounting groove 5 inside the boring bar body 2, and then the fixing bolt 8 is inserted into the mounting hole 104 inside the mounting rod 103 through the bolt groove 6, so that the mounting rod 103 can be conveniently fixed, and the cutter head mechanism 1 can be installed on the boring bar body 2, so that the staff can replace the cutter head mechanism 1 according to work needs.

[0039] Secondly, by rotating the movable seat 301, the external thread 304 on the protective cover 302 is meshed with the internal thread groove 303 on the bolt groove 6, so that the protective cover 302 can be installed inside the bolt groove 6, which can conveniently block external dust and debris, and try to prevent dust and debris from falling into the bolt groove 6 and clogging the interior, thereby affecting the disassembly and assembly of the fixing bolt 8;

[0040] Finally, external water vapor can easily enter the bolt groove 6 through the gap between the protective cover 302 and the bolt groove 6. The absorbent cotton 402 can absorb the water vapor entering the bolt groove 6, thereby preventing the water vapor from corroding the fixing bolt 8 and causing the fixing bolt 8 to rust, thereby effectively extending the service life of the fixing bolt 8.

[0041] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A boring bar, characterized in that: include: Boring bar body; Bolt grooves; the bolt grooves are provided at the top and bottom ends of the boring bar body; A material blocking structure is arranged above the inside of the bolt groove, and the material blocking structure includes an internal thread groove opened above the inside of the bolt groove, a protective cover arranged inside the internal thread groove, external threads evenly arranged outside the protective cover, and a rotating seat arranged in the middle part of the top end of the protective cover, and the internal thread groove and the external thread are meshed with each other.

2. A boring bar according to claim 1, characterized in that: A mounting groove is provided at one end of the boring bar body, and a cutter head mechanism is provided at one end of the boring bar body close to the mounting groove. The cutter head mechanism includes a mounting rod penetrating the mounting groove, a cutter head seat welded to the end of the mounting rod away from the boring bar body, mounting holes respectively provided at the top and bottom ends of the mounting rod, and a processing cutter head fixed to the end of the cutter head seat away from the mounting rod.

3. A boring bar according to claim 1, characterized in that: The protective cover is provided with a protective mechanism, which comprises a sealing pad arranged at the bottom end of the protective cover, a water-absorbing cotton arranged outside the sealing pad and a sealing sleeve arranged outside the top end of the protective cover.

4. A boring bar according to claim 2, characterized in that: A fixing bolt passes through the internal thread of the bolt groove, and a protective gasket is sleeved on the outside of the fixing bolt.

5. A boring bar according to claim 4, characterized in that: An internal thread is provided inside the mounting hole, and the internal thread is connected to the fixing bolt through a threaded connection.

6. A boring bar according to claim 1, characterized in that: The bolt grooves are arranged in two groups, and the bolt grooves are symmetrically distributed about the inner center of the boring bar body.

7. A boring bar according to claim 4, characterized in that: The bolt groove and the axis center line of the mounting hole are arranged on the same horizontal line, and the fixing bolts are respectively inserted into the mounting hole and the bolt groove.

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