Long through hole workpiece inner hole machining device for boring machine and boring machine

Abstract

The utility model provides a long through hole workpiece inner hole machining device for a boring machine and the boring machine, and belongs to the field of machining, the long through hole workpiece inner hole machining device comprises a mounting shaft, a boring cutter and a limiting mechanism, and the mounting shaft is coaxially connected with a main shaft of the boring machine and keeps synchronous rotation with the main shaft; the boring cutter comprises a cutter handle and a cutter head, the cutter head is detachably connected to the end of the cutter handle, the cutter handle is slidably arranged in the mounting shaft in a lockable mode in the length direction of the cutter handle, and the length direction of the cutter handle is perpendicular to the axial direction of the mounting shaft; the limiting mechanism comprises a limiting seat, the limiting seat is movably arranged on the boring machine in the axial direction of the main shaft, and the mounting shaft is rotationally connected with the limiting seat in an axial lockable mode. Compared with the prior art, the long through hole workpiece inner hole machining device for the boring machine can solve the technical problem that an existing boring machine cannot meet the use requirement when machining a deep hole workpiece through the arrangement of the limiting mechanism.

Description

Technical Field

[0001] The utility model belongs to the field of mechanical processing, and more specifically, relates to a device for processing inner holes of long through-hole workpieces for boring machines. The utility model also relates to a boring machine. Background Art

[0002] A deep hole refers to a hole with a depth to diameter ratio of L / d ≥ 5. It is a difficult problem in mechanical processing, especially the processing of deep holes with a large depth-to-diameter ratio. The difficulty lies in the slender tool, poor rigidity, and low strength, which can easily cause tool deflection, and it is difficult to dissipate heat and remove chips, often resulting in phenomena such as enlarged diameter, tapered or skewed holes, thus failing to meet quality requirements.

[0003] When deep hole machining of parts is carried out by conventional boring machine drilling, the boring machine spindle is always subjected to unidirectional radial force during the drilling process, and the tool extension distance of long and deep hole workpieces is long, and the tool strength cannot meet the processing requirements. Not only is the processing accuracy low, the surface roughness is poor, the processing efficiency is low, the operator's labor intensity is high, the quality is difficult to guarantee, and the dimensional accuracy of the barely processed workpiece cannot meet the requirements. Improvement is urgently needed. Utility Model Content

[0004] The utility model aims to provide a device for processing inner holes of long through-hole workpieces for boring machines, so as to solve the technical problem that the existing boring machines cannot meet the use requirements when processing deep-hole workpieces.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: to provide a long through-hole workpiece inner hole processing device for a boring machine, comprising:

[0006] The mounting shaft is coaxially fixed to the main shaft of the boring machine;

[0007] The boring tool comprises a tool handle and a tool head, wherein the tool head is detachably connected to the end of the tool handle, and the tool handle is lockably slidably arranged in the installation shaft along its length direction, and the length direction of the tool handle is perpendicular to the axial direction of the installation shaft;

[0008] The limiting mechanism comprises a limiting seat, which is slidably arranged on the boring machine along the axial direction of the main shaft, and the mounting shaft is movably arranged in the limiting seat along its own axial direction and can be locked on the limiting seat after moving to a specified position.

[0009] In a possible implementation, the limiting mechanism also includes a guide rail and a mounting seat, the guide rail is fixed to the boring machine, and the length direction of the guide rail is parallel to the axial direction of the mounting shaft; the mounting seat is arranged at the bottom of the limiting seat and is slidably adapted to the guide rail along the axial direction of the mounting shaft.

[0010] In a possible implementation, the mounting shaft is provided with a mounting hole and a positioning hole, the mounting hole is used to mount the tool handle, the positioning hole is used to connect a fastening bolt, the depth direction of the mounting hole is perpendicular to the axial direction of the mounting shaft, the depth direction of the positioning hole is perpendicular to the mounting hole, and the mounting hole and the positioning hole are connected to each other, the fastening bolt thread is adapted in the positioning hole, and can tighten the tool handle.

[0011] In a possible implementation, the limiting mechanism also includes a double-row tapered roller bearing and a first bolt sleeve, the first bolt sleeve thread is adapted to the outer circumference of the mounting shaft, the inner ring of the double-row tapered roller bearing is coaxially connected to the outer circumference of the first bolt sleeve, the outer ring of the double-row tapered roller bearing is connected to the limiting seat, and the end of the mounting shaft is provided with an external thread adapted to the first bolt sleeve.

[0012] In a possible implementation, the limiting mechanism further includes a second bolt sleeve and a third bolt sleeve, both of which are threadedly adapted to the mounting shaft, and the second bolt sleeve and the third bolt sleeve are respectively arranged on both axial sides of the first bolt sleeve.

[0013] In a possible implementation, the mounting shaft is provided with a plurality of mounting holes along its length direction, and is also provided with a plurality of positioning holes along its length direction.

[0014] In a possible implementation, each of the mounting holes corresponds to two of the positioning holes, the depth directions of the two positioning holes are perpendicular to each other, and the depth directions of the two positioning holes are perpendicular to the depth direction of the mounting hole.

[0015] In a possible implementation, there are two guide rails, and the two guide rails are arranged side by side on the boring machine along a horizontal direction, and two sliding grooves respectively slidably matched with the two guide rails are formed at the bottom of the mounting seat.

[0016] Compared with the prior art, the beneficial effect of the long through hole workpiece inner hole processing device for a boring machine provided by the utility model is that the limit seat can use its own sliding adaptation with the boring machine to guide the movement of the mounting shaft to prevent the mounting shaft from offsetting in the process of driving the boring cutter to move. In addition, in the utility model, the distance between the boring cutter and the limit seat can be shortened by adjusting the position of the limit seat on the mounting shaft, which not only maintains the structural rigidity of the mounting shaft, but also facilitates the utility model to be suitable for processing deep hole workpieces of different sizes, and prevents the mounting shaft from having insufficient structural rigidity during the deep hole processing, resulting in the drilling operation being unable to proceed smoothly, and the dimensional accuracy of the processed workpiece being unable to meet the use requirements. Technical problems.

[0017] Another object of the utility model is to provide a boring machine, including the long through-hole workpiece inner hole processing device for the boring machine mentioned above.

[0018] Compared with the prior art, the boring machine in the utility model has all the advantages of the above-mentioned boring machine for inner hole processing device of long through hole workpiece, which will not be described here. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments or the prior art description. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0020] Figure 1 This is a schematic diagram of the overall structure of the inner hole processing device for a long through-hole workpiece used in a boring machine provided by the utility model;

[0021] Figure 2 A schematic diagram of the positional relationship between the limiting mechanism and the boring machine provided by the utility model;

[0022] Figure 3 This is a structural schematic diagram of the installation shaft provided by the utility model.

[0023] In the figure:

[0024] 1. Mounting shaft; 11. Mounting hole; 12. Positioning hole;

[0025] 2. Boring tool;

[0026] 3. Limiting mechanism; 31. Limiting seat; 32. Guide rail; 33. Mounting seat; 34. Double-row tapered roller bearing; 35. First bolt sleeve; 36. Second bolt sleeve; 37. Third bolt sleeve. DETAILED DESCRIPTION

[0027] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0028] In the description of the present invention, it should be noted that if terms such as "upper", "lower", "inside", and "back" appear to indicate orientation or positional relationships, they are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0029] In addition, in the description of the present invention, unless otherwise clearly defined, the terms "installation", "connection", "connection", and "connector" should be understood in a broad sense. For example, the connection can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, an indirect connection through an intermediate medium, or a connection between two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood in combination with specific circumstances.

[0030] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0031] Please also read Figures 1 to 3 Now, the long through hole workpiece inner hole processing device for boring machine provided by the utility model is described. The long through hole workpiece inner hole processing device for boring machine comprises a mounting shaft 1, a boring tool 2 and a limiting mechanism 3, wherein the mounting shaft 1 is coaxially fixed to the main shaft of the boring machine; the boring tool 2 comprises a tool handle and a tool head, the tool head is detachably connected to the end of the tool handle, the tool handle is lockably slidably arranged in the mounting shaft 1 along its own length direction, and the length direction of the tool handle is perpendicular to the axial direction of the mounting shaft 1; the limiting mechanism 3 comprises a limiting seat 31, the limiting seat 31 is movably arranged in the boring machine along the axial direction of the main shaft, the mounting shaft 1 is movably arranged in the limiting seat 31 along its own axial direction, and can be locked in the limiting seat 31 after moving to a specified position.

[0032] Compared with the prior art, in the specific use process of the utility model, the limit seat 31 can use its own sliding adaptation with the boring machine to guide the movement of the installation shaft 1 to prevent the installation shaft 1 from being offset in the process of driving the boring tool 2 to move. In addition, in the utility model, the distance between the boring tool 2 and the limit seat 31 can be shortened by adjusting the position of the limit seat 31 on the installation shaft 1, which can not only maintain the structural rigidity of the installation shaft 1, but also facilitate the utility model to be suitable for processing deep hole workpieces of different sizes, and prevent the installation shaft 1 from having insufficient structural rigidity during the deep hole processing, resulting in the drilling operation being unable to proceed smoothly, and the dimensional accuracy of the processed workpiece being unable to meet the use requirements. In addition, the utility model can also adjust the feed amount of the boring tool 2 by adjusting the telescopic amount of the tool handle on the installation shaft 1, thereby improving the scope of application of the utility model to deep hole parts of different specifications.

[0033] Based on the above embodiment, the limiting mechanism 3 further includes a guide rail 32 and a mounting seat 33. The guide rail 32 is fixed to the boring machine, and the length direction of the guide rail 32 is parallel to the axial direction of the mounting shaft 1. The mounting seat 33 is arranged at the bottom of the limiting seat 31, and slides and fits with the guide rail 32 along the axial direction of the mounting shaft 1. In this embodiment, the guide rail 32 can limit the movement range of the mounting seat 33 in its own length direction, prevent the mounting seat 33 from being loosened from the guide rail 32, and make the connection between the mounting seat 33 and the boring machine more stable, which is conducive to ensuring the guiding accuracy of the mounting seat 33 for the movement of the mounting shaft 1.

[0034] In some embodiments, the mounting shaft 1 is provided with a mounting hole 11 and a positioning hole 12, the mounting hole 11 is used to mount the tool handle, the positioning hole 12 is used to connect the fastening bolt, the depth direction of the mounting hole 11 is perpendicular to the axial direction of the mounting shaft, the depth direction of the positioning hole 12 is perpendicular to the mounting hole, and the mounting hole 11 and the positioning hole 12 are connected to each other, the fastening bolt thread fits in the positioning hole 12, and can press against the tool handle. In this embodiment, the fastening bolt can be pressed against or away from the tool handle by the screwing depth of the fastening bolt in the positioning hole 12, which is convenient for adjusting the feed amount of the boring tool 2 and replacing the boring tool 2.

[0035] Optionally, in some embodiments, the limiting mechanism 3 further includes a double-row tapered roller bearing 34 and a first bolt sleeve 35, the first bolt sleeve 35 is threadedly adapted to the outer periphery of the installation shaft 1, the inner ring of the double-row tapered roller bearing 34 is coaxially connected to the outer periphery of the first bolt sleeve 35, the outer ring of the double-row tapered roller bearing 34 is connected to the limiting seat 31, and the end of the installation shaft 1 is provided with an external thread adapted to the first bolt sleeve 35. Compared with the prior art, the position of the limiting seat 31 relative to the installation shaft 1 can be adjusted by rotating the first bolt sleeve 35 relative to the installation shaft 1 in this embodiment. At the same time, the installation shaft 1 in this embodiment can drive the limiting seat 31 to move along its own axial direction during the process of rotation and axial movement, and the limiting seat 31 can also provide support for the rotation of the installation shaft 1.

[0036] In one possible implementation, in order to prevent uncontrollable deflection between the mounting shaft 1 and the first bolt sleeve 35, the limiting mechanism 3 also includes a second bolt sleeve 36 and a third bolt sleeve 37. The second bolt sleeve 36 and the third bolt sleeve 37 are both threadedly adapted to the outer periphery of the mounting shaft 1, and the second bolt sleeve 36 and the third bolt sleeve 37 are respectively arranged on both axial sides of the first bolt sleeve 35. As arranged above, the second bolt sleeve 36 and the third bolt sleeve 37 can tighten the first bolt sleeve 35 from the left and right ends, so that the connection between the first bolt sleeve 35 and the mounting shaft 1 is more stable.

[0037] Optionally, in a specific implementation process, the mounting shaft 1 is provided with a plurality of mounting holes 11 along its length direction, and a plurality of positioning holes 12 are also provided along its length direction, so as to facilitate adjustment of the position of the boring tool 2 on the mounting shaft 1, or to simultaneously install a plurality of boring tools 2 of different specifications on the mounting shaft 1, so as to improve the processing efficiency of the utility model for long through hole workpieces.

[0038] In some embodiments, each mounting hole 11 corresponds to two positioning holes 12, the depth directions of the two positioning holes 12 are perpendicular to each other, and the depth directions of the two positioning holes 12 are perpendicular to the depth direction of the mounting hole 11. Compared with the prior art, this embodiment can restrict the degree of freedom of the boring tool 2 from two directions by tightening the fastening bolts in the two positioning holes 12 respectively, so that the mounting shaft 1 can fix the boring tool 2 more securely.

[0039] In a possible implementation, the number of guide rails 32 mentioned above is two, and the two guide rails 32 are arranged side by side on the boring machine in the horizontal direction, and two slide grooves respectively slidably adapted to the two guide rails 32 are provided at the bottom of the mounting seat 33. As set above, this embodiment can guide and limit the movement of the mounting seat 33 by two guide rails 32 arranged side by side, so that the connection between the mounting seat 33 and the boring machine is more secure.

[0040] Based on the same inventive concept, the utility model also proposes a boring machine, which includes the long through-hole workpiece inner hole processing device for the boring machine mentioned above.

[0041] Compared with the prior art, the boring machine in the utility model has all the advantages of the above-mentioned boring machine for inner hole processing device of long through hole workpiece, which will not be described here.

[0042] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A device for machining inner holes of long through-hole workpieces for a boring machine, characterized in that: include: A mounting shaft (1) is coaxially fixed to a main shaft of a boring machine; A boring tool (2) comprises a tool handle and a tool head, wherein the tool head is detachably connected to the end of the tool handle, and the tool handle is lockably slidably arranged in the installation shaft (1) along its length direction, and the length direction of the tool handle is perpendicular to the axial direction of the installation shaft (1); The limiting mechanism (3) comprises a limiting seat (31), wherein the limiting seat (31) is slidably arranged on the boring machine along the axial direction of the main shaft, and the mounting shaft (1) is movably arranged in the limiting seat (31) along its own axial direction and can be locked on the limiting seat (31) after moving to a specified position.

2. The long through-hole workpiece inner hole processing device for a boring machine according to claim 1, characterized in that: The limiting mechanism (3) further comprises a guide rail (32) and a mounting seat (33); the guide rail (32) is fixed to the boring machine, and the length direction of the guide rail (32) is parallel to the axial direction of the mounting shaft (1); the mounting seat (33) is arranged at the bottom of the limiting seat (31) and is slidably matched with the guide rail (32) along the axial direction of the mounting shaft (1).

3. The inner hole processing device for a long through hole workpiece for a boring machine according to claim 2, characterized in that: The mounting shaft (1) is provided with a mounting hole (11) and a positioning hole (12); the mounting hole (11) is used for mounting the knife handle, and the positioning hole (12) is used for connecting a fastening bolt; the depth direction of the mounting hole (11) is perpendicular to the axial direction of the mounting shaft (1); the depth direction of the positioning hole (12) is perpendicular to the mounting hole (11); the mounting hole (11) and the positioning hole (12) are connected to each other; the fastening bolt thread is adapted to fit in the positioning hole (12) and can be pressed against the knife handle.

4. The inner hole processing device for a long through hole workpiece for a boring machine according to claim 1, characterized in that: The limiting mechanism (3) further comprises a double-row tapered roller bearing (34) and a first bolt sleeve (35), wherein the first bolt sleeve (35) is threadedly adapted to the outer periphery of the mounting shaft (1), the inner ring of the double-row tapered roller bearing (34) is coaxially connected to the outer periphery of the first bolt sleeve (35), the outer ring of the double-row tapered roller bearing (34) is connected to the limiting seat (31), and the end of the mounting shaft (1) is provided with an external thread adapted to the first bolt sleeve (35).

5. The inner hole processing device for a long through hole workpiece for a boring machine according to claim 4, characterized in that: The limiting mechanism (3) further comprises a second bolt sleeve (36) and a third bolt sleeve (37), wherein the second bolt sleeve (36) and the third bolt sleeve (37) are both threadedly adapted to the mounting shaft (1), and the second bolt sleeve (36) and the third bolt sleeve (37) are respectively arranged on two axial sides of the first bolt sleeve (35).

6. The inner hole processing device for a long through hole workpiece for a boring machine according to claim 3, characterized in that: The installation shaft (1) is provided with a plurality of installation holes (11) along its length direction, and is also provided with a plurality of positioning holes (12) along its length direction.

7. The inner hole processing device for a long through hole workpiece for a boring machine according to claim 3, characterized in that: Each of the mounting holes (11) corresponds to two positioning holes (12), the depth directions of the two positioning holes (12) are perpendicular to each other, and the depth directions of the two positioning holes (12) are perpendicular to the depth direction of the mounting hole (11).

8. The inner hole processing device for a long through hole workpiece for a boring machine according to claim 2, characterized in that: There are two guide rails (32), and the two guide rails (32) are arranged side by side on the boring machine in a horizontal direction. The bottom of the mounting seat (33) is provided with two sliding grooves respectively slidably matched with the two guide rails (32).

9. A boring machine, characterized in that: It comprises the inner hole processing device for a long through hole workpiece used in a boring machine as claimed in any one of claims 1 to 8.

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