Transverse deep hole drilling machine and metal pipe production line

Abstract

The invention provides a transverse deep hole drilling machine and a metal pipe production line, and belongs to the field of machining, the transverse deep hole drilling machine comprises a base, a first hole rotating assembly and a second hole drilling assembly, and the length direction of the base extends in the first direction; the first drilling assembly comprises a first mounting seat, a first driving motor and a first drilling rod, and the first mounting seat is movably arranged on the base in the first direction; the second drilling assembly comprises a second mounting seat, a second driving motor and a second drilling rod coaxial with the first drilling rod, and the second mounting seat is movably arranged on the base in the first direction; the workpiece positioning assembly comprises a third mounting base, a third driving motor and a first clamp, the third mounting base is located between the first mounting base and the second mounting base, and the first drill rod and the second drill rod are oppositely arranged on the two sides of the first clamp correspondingly. Compared with the prior art, the technical problems that all components of an existing drilling machine are not matched, and the machining efficiency of workpieces cannot meet the use requirement are solved.

Description

Technical Field

[0001] The present invention belongs to the field of machining, and more specifically, relates to a horizontal deep hole drilling machine, and the present invention also relates to a metal pipe production line. Background Art

[0002] A drilling machine mainly refers to a machine tool for machining holes in workpieces. Usually, the rotation of the drill bit is the main movement, and the axial movement of the drill bit is the feed movement. The structure of the drilling machine is simple, and the machining accuracy is relatively low. It can drill through holes and blind holes. By replacing special tools, it can perform operations such as reaming, counterboring, reaming or tapping. During the machining process, the workpiece remains stationary while the tool moves. The center of the tool is aligned with the center of the hole, and the tool rotates (main movement). The characteristic of the drilling machine is that the workpiece is fixed and the tool rotates.

[0003] A drilling machine is mainly a machine tool for machining holes (such as drilling, reaming, reaming, tapping, counterboring, etc.) in workpieces. It is an essential equipment in mechanical manufacturing and various repair factories. According to its uses and structures, it is mainly divided into the following categories. Vertical drilling machine: The worktable and the spindle box can move vertically on the column and are used for machining medium and small workpieces. Bench drilling machine: Abbreviated as bench drill. A small vertical drilling machine with a maximum drilling diameter of 12 - 15 mm. It is installed on a bench and mostly uses manual feed for drilling. It is often used for machining small holes in small workpieces.

[0004] Radial drilling machine: The spindle box can move on the radial arm, and the radial arm can rotate and lift. The workpiece is fixed, and it is suitable for machining large, heavy and multi-hole workpieces, and is widely used in mechanical manufacturing.

[0005] Deep hole drilling machine: A specialized machine tool for drilling holes with a depth much larger than the diameter (such as deep holes in parts like gun barrels, cannon barrels and machine tool spindles). To facilitate chip removal and avoid the machine tool being too tall, it is generally in a horizontal layout and is usually equipped with a coolant delivery device (inputting coolant from inside the tool to the cutting part) and a periodic tool withdrawal and chip removal device, etc. Center hole drilling machine: Used for machining center holes at both ends of shaft parts.

[0006] Milling drilling machine: The worktable can move longitudinally and transversely, and the drill shaft is vertically arranged, and it is a drilling machine that can perform milling.

[0007] Horizontal drilling machine: A drilling machine with a horizontally arranged spindle and a vertically movable spindle box. Generally, it has a higher machining efficiency than a vertical drilling machine and can machine multiple surfaces simultaneously.

[0008] However, deep hole machining is still a difficult point in the existing drilling machine machining. During the use of the existing drilling machine for deep hole machining, the feed rate of drilling is only controlled by the driving device of the drill pipe, and the fixing fixture of the workpiece is only used for fixing the workpiece. There is a lack of cooperation between them, and the machining efficiency of the workpiece cannot meet the usage requirements. Summary of the Invention

[0009] The object of the present invention is to provide a horizontally placed deep hole drilling machine to solve the technical problem that in the process of processing deep holes by the existing drilling machines, there is a lack of cooperation between various components, and the processing efficiency of workpieces cannot meet the usage requirements.

[0010] To achieve the above object, the technical solution adopted by the present invention is: to provide a horizontally placed deep hole drilling machine, including:

[0011] A base, the length direction of the base extends along a first direction;

[0012] A first drilling assembly, including a first mounting seat, a first driving motor and a first drill rod. The first mounting seat is movably arranged on the base along the first direction. The first driving motor is arranged on the first mounting seat, and the first drill rod is arranged at the power output end of the first driving motor;

[0013] A second drilling assembly, including a second mounting seat, a second driving motor and a second drill rod coaxial with the first drill rod. The second mounting seat is movably arranged on the base along the first direction. The second driving motor is arranged on the second mounting seat, and the second drill rod is arranged at the power output end of the second driving motor;

[0014] A workpiece positioning assembly, including a third mounting seat, a third driving motor and a first fixture. The third mounting seat is movably arranged on the base along the first direction and is located between the first mounting seat and the second mounting seat. The first drill rod and the second drill rod are respectively arranged on both sides of the first fixture. The third driving motor is arranged on the third mounting seat. The first fixture is connected to the power output end of the third driving motor, and the third driving motor is used to drive the first fixture to rotate around the axis of the first drill rod.

[0015] In a feasible implementation manner, the first fixture includes a chuck and a plurality of jaws. The chuck is annular and coaxial with the first drill rod. The jaws are multiple, and each jaw is evenly arranged around the axis of the chuck. Each jaw can approach or move away from the axis of the chuck to fix the workpiece, and the chuck is rotatably arranged on the first mounting seat around a first axis.

[0016] In a feasible implementation manner, the horizontally placed deep hole drilling machine further includes a guiding mechanism. The guiding mechanism includes a guiding slide rail and a guiding rod. The slide rail is arranged on the top of the base and extends along the first direction. The guiding rod is arranged above the slide rail and extends along the first direction. The bottoms of the first mounting seat, the second mounting seat and the third mounting seat are all in guiding fit with the slide rail. The guiding rod is installed on the top of the third mounting seat, and the tops of the first mounting seat and the second mounting seat are all in guiding fit with the guiding rod.

[0017] In a feasible implementation manner, the horizontal deep hole drilling machine further includes a driving assembly, and the driving assembly includes a driving cylinder, a linear driving module, and a lead screw nut mechanism, all of which are arranged on the base. The telescopic direction of the power output end of the driving cylinder extends along a first direction. The first mounting seat is arranged at the power output end of the driving cylinder. The moving direction of the power output end of the linear driving module extends along the first direction. The third mounting seat is arranged at the power output end of the linear driving module. The power output end of the lead screw nut mechanism extends along the first direction. The second mounting seat is connected to the power output end of the lead screw nut mechanism.

[0018] In a feasible implementation manner, the guiding mechanism further includes two positioning plates, and the two positioning plates are respectively arranged on both sides of the third mounting seat. The positioning plates are in guiding fit with the guiding rods, and the positioning plates are provided with positioning holes. The positioning holes on the two positioning plates are respectively in rotational fit with the first drill rod and the second drill rod.

[0019] In a feasible implementation manner, a rotating bearing and an external gear ring are sleeved on the outer periphery of the chuck. The rotating bearing is used to form a rotational fit between the chuck and the third mounting seat. A driving gear meshing with the external gear ring is arranged at the power output end of the third driving motor.

[0020] In a feasible implementation manner, the horizontal deep hole drilling machine further includes an operation panel arranged on the base.

[0021] In a feasible implementation manner, the guiding mechanism further includes two positioning bearings coaxially arranged in the positioning holes. The inner rings of the two positioning bearings rotate synchronously with the first drill rod and the second drill rod respectively. The outer rings of the two positioning bearings are fixedly connected to the inner walls of the two positioning holes respectively.

[0022] In a feasible implementation manner, the horizontal deep hole drilling machine further includes a storage box, and the base is arranged on the top of the storage box.

[0023] Compared with the prior art, the beneficial effects of the horizontal deep hole drilling machine provided by the present invention are as follows:

[0024] Through the coaxial and opposed design of double drill pipes and combined with the workpiece rotation drive, the present invention can achieve dynamic symmetric cutting force balance. During the machining process, the two drills feed simultaneously, offsetting the radial force difference generated by single-sided drilling, thereby reducing the risk of workpiece torsional deformation. At the same time, the rotation of the workpiece makes the cutting heat evenly distributed along the circumference, avoiding material hardening or increased drill wear caused by local overheating. This structure is particularly suitable for ultra-deep hole machining with a length-diameter ratio greater than 20:1, improving the tool life of traditional single-sided drilling by more than 40%, and increasing the machining efficiency by 50%-60% (measured by the same hole diameter and depth), solving the problems of "drilling deviation" and "adhesive tool" that are prone to occur during deep hole machining of alloy components. In addition, the present application can also adjust the feed rate of workpiece drilling at any time through the real-time movement of the workpiece positioning component and the two drilling components. While continuously machining, the drilling quality of the workpiece can also be effectively guaranteed.

[0025] Another object of the present invention is to propose a metal pipe production line, including the horizontal deep hole drilling machine described above.

[0026] Compared with the prior art, the metal pipe production line in the present invention has all the beneficial effects of the above horizontal deep hole drilling machine, which will not be repeated here. At the same time, through the cooperation of the horizontal deep hole drilling machine and the metal pipe production line, seamless connection of the pipe fitting drilling process can be achieved, thereby forming a continuous processing system, achieving the technical effects of significantly shortening the production beat and reducing the intermediate turnover cost, and solving the production capacity bottleneck and logistics loss problems existing in traditional segmented processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts. In the drawings:

[0028] Figure 1 is the front view of the horizontal deep hole drilling machine provided by the present invention;

[0029] Figure 2 is the top view of the horizontal deep hole drilling machine of the present invention.

[0030] In the figure:

[0031] 1. Base;

[0032] 2. First drilling component; 21. First mounting seat; 22. First driving motor; 23. First drill pipe;

[0033] 3. Second drilling component; 31. Second mounting seat; 32. Second driving motor; 33. Second drill pipe;

[0034] 4. Workpiece positioning component; 41. Third mounting seat; 42. Third driving motor; 43. First fixture; 431. Chuck; 432. Jaw

[0035] 5. Guiding mechanism; 51. Guiding slide rail; 52. Guiding rod; 53. Positioning plate

[0036] 6. Driving component; 61. Driving cylinder; 62. Linear driving module; 63. Lead screw nut mechanism

[0037] 7. Operation panel

[0038] 8. Accommodating box Detailed implementation manners

[0039] It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments may be combined with each other.

[0040] In the description of the present invention, it should be noted that if terms indicating orientation or positional relationship such as "upper", "lower", "inner", "back", etc. appear, they are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention.

[0041] In addition, in the description of the present invention, unless otherwise clearly defined, the terms "mount", "connect", "connection", "connecting piece" 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 directly connected or indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in combination with the specific circumstances.

[0042] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the 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.

[0043] Please refer to Figure 1 and Figure 2, the horizontal deep hole drilling machine provided by the present invention will be described below. The horizontal deep hole drilling machine includes a base 1, a first drilling assembly, and a second drilling assembly 3. Among them, the length direction of the base 1 extends along the first direction; the first drilling assembly 2 includes a first mounting base 21, a first driving motor 22, and a first drill rod 23. The first mounting base 21 is movably arranged on the base 1 along the first direction. The first driving motor 22 is arranged on the first mounting base 21, and the first drill rod 23 is arranged at the power output end of the first driving motor 22; the second drilling assembly 3 includes a second mounting base 31, a second driving motor 32, and a second drill rod 33 coaxial with the first drill rod 23. The second mounting base 31 is movably arranged on the base 1 along the first direction. The second driving motor 32 is arranged on the second mounting base 31, and the second drill rod 33 is arranged at the power output end of the second driving motor 32; the workpiece positioning assembly 4 includes a third mounting base 41, a third driving motor 42, and a first fixture 43. The third mounting base 41 is movably arranged on the base 1 along the first direction and is located between the first mounting base 21 and the second mounting base 31. The first drill rod 23 and the second drill rod 33 are respectively arranged on both sides of the first fixture 43. The third driving motor 42 is arranged on the third mounting base 41. The first fixture 43 is connected to the power output end of the third driving motor 42, and the third driving motor 42 is used to drive the first fixture 43 to rotate around the axis of the first drill rod 23.

[0044] Compared with the prior art, in the specific implementation process of this embodiment, through the coaxial and opposed design of the double drill rods and the combination of workpiece rotation drive, dynamic symmetric cutting force balance can be achieved. During the machining process, the two drills feed simultaneously to offset the radial force difference generated by single-sided drilling, thereby reducing the risk of workpiece torsional deformation; at the same time, the rotation of the workpiece makes the cutting heat evenly distributed along the circumference, avoiding material hardening or increased drill wear caused by local overheating. This structure is particularly suitable for ultra-deep hole machining with a length-to-diameter ratio greater than 20:1, improving the tool life of traditional single-sided drilling by more than 40% and increasing the machining efficiency by 50%-60% (measured by the same hole diameter and depth), solving the problems of "drilling deviation" and "tool sticking" that are prone to occur during the deep hole machining of alloy components. In addition, the present application can also adjust the feed rate of workpiece drilling at any time through the real-time movement of the workpiece positioning assembly 4 and the two drilling assemblies. While continuously machining, the drilling quality of the workpiece can also be effectively guaranteed.

[0045] Based on the above embodiments, in order to fix the workpiece, in some feasible embodiments, the first fixture 43 includes a chuck 431 and a plurality of jaws 432. The chuck 431 is an annular shape coaxial with the first drill rod 23. There are a plurality of jaws 432, and each jaw 432 is evenly arranged around the axis of the chuck 431. Each jaw 432 can move closer to or away from the axis of the chuck 431 to fix the workpiece. The chuck 431 is rotatably arranged on the first mounting seat 21 around the first axis. Through the cooperation of the coaxial annular chuck 431 and the evenly clamping of the multiple jaws 432, rapid centering and fixing of the workpiece can be achieved, so as to ensure that the rotation axis of the workpiece coincides strictly with the axis of the drill rod, achieving the technical effects of eliminating eccentric vibration and ensuring the coaxiality of drilling, and solving the technical problems of hole position deviation and rough machining surface caused by eccentric clamping of the workpiece. In addition, the annular chuck 431 enables the workpiece to extend outwards along the first axis on both sides, so that workpieces with longer dimensions can be processed.

[0046] In order to guide each mounting seat, in some feasible embodiments, the horizontal deep hole drilling machine further includes a guiding mechanism 5. The guiding mechanism 5 includes a guiding slide rail 51 and a guiding rod 52. The slide rail is arranged on the top of the base 1 and extends along the first direction. The guiding rod 52 is arranged above the slide rail and extends along the first direction. The bottoms of the first mounting seat 21, the second mounting seat 31 and the third mounting seat 41 are all adapted to the guiding of the slide rail, and the guiding rod 52 is installed on the top of the third mounting seat 41. The tops of the first mounting seat 21 and the second mounting seat 31 are all adapted to the guiding of the guiding rod 52. In this way, through the double-layer guiding structure cooperation of the slide rail and the guiding rod 52, synchronous and precise movement of the three groups of mounting seats can be achieved, so as to ensure that the two drill rods and the workpiece fixture are always on the same straight line during the movement, thereby improving the alignment accuracy and reducing the cumulative assembly error, and solving the alignment deviation problem caused by poor coordination of multiple moving parts.

[0047] To facilitate driving the movement of each mounting base, in some feasible embodiments, the horizontal deep hole drilling machine further includes a driving assembly 6. The driving assembly 6 includes a driving cylinder 61, a linear driving module 62, and a lead screw nut mechanism 63, all of which are provided on the base 1. The telescopic direction of the power output end of the driving cylinder 61 extends along the first direction. The first mounting base 21 is provided at the power output end of the driving cylinder 61. The moving direction of the power output end of the linear driving module 62 extends along the first direction. The third mounting base 41 is provided at the power output end of the linear driving module 62. The power output end of the lead screw nut mechanism 63 extends along the first direction. The second mounting base 31 is connected to the power output end of the lead screw nut mechanism 63. Through the differential driving cooperation of the driving cylinder 61, the linear module, and the lead screw nut mechanism 63, the coordinated control of the rapid coarse adjustment of the first drilling assembly 2 and the precise fine adjustment of the workpiece fixture is realized, so as to balance the processing efficiency and positioning accuracy, which is beneficial to shortening the non-processing time and adapting to different workpiece lengths, and solves the contradiction problem that the traditional single driving method cannot balance speed and accuracy.

[0048] In some feasible embodiments, the guiding mechanism 5 further includes two positioning plates 53. The two positioning plates 53 are respectively provided on both sides of the third mounting base 41. The positioning plates 53 are guidingly adapted to the guiding rods 52, and the positioning plates 53 are provided with positioning holes. The positioning holes on the two positioning plates 53 are respectively rotationally adapted to the first drill rod 23 and the second drill rod 33. Through the cooperation of the positioning plates 53 and their positioning holes, the dynamic axial support during the movement of the drill rod is realized, so as to provide additional constraints for the drill rod in the non-processing section, achieving the technical effects of suppressing the overhanging vibration of the drill rod and preventing the radial yaw of the processing section, and solving the problems of initial alignment misalignment of the long drill rod due to its own weight during the idle stroke and drill rod jitter caused by processing vibration during the subsequent processing process.

[0049] In some feasible embodiments, a rotating bearing and an external gear ring are sleeved on the outer periphery of the chuck 431. The rotating bearing is used to form the rotational adaptation between the chuck 431 and the third mounting base 41. A driving gear meshing with the external gear ring is provided at the power output end of the third driving motor 42. Through the meshing transmission cooperation of the external gear ring and the driving gear, the high-torque stable rotation of the chuck 431 can be realized, so as to improve the anti-torsion ability of the workpiece positioning assembly 4.

[0050] In addition to the above feasible implementation manners, in some feasible embodiments, the horizontal deep hole drilling machine further includes an operation panel 7 provided on the base 1. While displaying the processing parameters, the real-time control of various driving devices such as driving motors is realized, simplifying the equipment operation process and real-time monitoring of the processing parameters, achieving the technical effects of reducing the operation complexity and improving the automation degree of the production line.

[0051] In some feasible embodiments, the guiding mechanism 5 further includes two positioning bearings coaxially arranged in the positioning holes respectively. The inner rings of the two positioning bearings rotate synchronously with the first drill pipe 23 and the second drill pipe 33 respectively, and the outer rings of the two positioning bearings are fixedly connected to the inner walls of the two positioning holes respectively. Through the synchronous / fixed cooperation of the inner and outer rings of the positioning bearings, the purpose of low-friction dynamic sealing between the drill pipe and the positioning hole can be achieved, so as to provide radial support while blocking the cutting fluid and prolong the service life of the guiding mechanism 5.

[0052] In some feasible embodiments, the horizontal deep-hole drilling machine further includes a receiving box 8, and the base 1 is arranged on the top of the receiving box 8 to realize the recovery of cutting fluid and the centralized treatment of debris, so as to construct a closed processing space and achieve the technical effects of resource recycling and environmental pollution avoidance.

[0053] In summary, compared with the prior art: through the coaxial and opposed design of the double drill pipes and combined with the workpiece rotation drive, the present invention can achieve the balance of dynamic symmetric cutting forces. The two drills feed simultaneously to offset the radial force difference generated by single-side drilling, thereby reducing the risk of workpiece torsional deformation; at the same time, the problems of "drilling deviation" and "tool sticking" that are prone to occur during the deep-hole processing of alloy components are solved. In addition, the present application can also adjust the feed rate of workpiece drilling at any time through the real-time movement of the workpiece positioning component 4 and the two drilling components. While continuously processing, the drilling quality of the workpiece can also be effectively guaranteed; in addition, the present invention can also guide the movement of the workpiece and the drill pipe through the guiding mechanism 5 such as the guiding rod 52 and the guiding plate, so as to ensure that the two drill pipes and the workpiece fixture are always on the same straight line during the movement process, achieving the technical effects of suppressing the vibration of the drill pipe overhang and preventing the radial deflection of the processing section, thereby improving the alignment accuracy and reducing the cumulative assembly error.

[0054] Based on the same inventive concept, the present invention also provides a metal pipe production line, which includes the horizontal deep-hole drilling machine described above.

[0055] Compared with the prior art, the metal pipe production line in the present invention has all the beneficial effects of the above horizontal deep-hole drilling machine, which will not be repeated here. At the same time, through the cooperation of the horizontal deep-hole drilling machine and the metal pipe production line, seamless connection of the pipe fitting drilling process can be achieved, so as to form a continuous processing system, achieving the technical effects of greatly shortening the production beat and reducing the intermediate turnover cost, and solving the production capacity bottleneck and logistics loss problems existing in traditional segmented processing.

[0056] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A horizontal deep hole drilling machine, characterized in that, Comprising: A base (1), the length direction of the base (1) extending along a first direction; A first drilling assembly (2), including a first mounting seat (21), a first driving motor (22) and a first drill rod (23), the first mounting seat (21) being movably arranged on the base (1) along the first direction, the first driving motor (22) being arranged on the first mounting seat (21), and the first drill rod (23) being arranged at the power output end of the first driving motor (22); A second drilling assembly (3), including a second mounting seat (31), a second driving motor (32) and a second drill rod (33) coaxial with the first drill rod (23), the second mounting seat (31) being movably arranged on the base (1) along the first direction, the second driving motor (32) being arranged on the second mounting seat (31), and the second drill rod (33) being arranged at the power output end of the second driving motor (32); A workpiece positioning assembly (4), including a third mounting seat (41), a third driving motor (42) and a first fixture (43), the third mounting seat (41) being movably arranged on the base (1) along the first direction and located between the first mounting seat (21) and the second mounting seat (31), the first drill rod (23) and the second drill rod (33) being respectively arranged on both sides of the first fixture (43), the third driving motor (42) being arranged on the third mounting seat (41), the first fixture (43) being connected to the power output end of the third driving motor (42), and the third driving motor (42) being used to drive the first fixture (43) to rotate around the axis of the first drill rod (23).

2. The horizontal deep hole drilling machine according to claim 1, wherein The first fixture (43) includes a chuck (431) and a plurality of jaws (432), the chuck (431) being an annular shape coaxial with the first drill rod (23), the jaws (432) being multiple, each of the jaws (432) being evenly arranged around the axis of the chuck (431), each of the jaws (432) being able to approach or move away from the axis of the chuck (431) to fix the workpiece, and the chuck (431) being rotatably arranged on the first mounting seat (21) around a first axis.

3. The horizontal deep hole drilling machine according to claim 1, wherein, The horizontal deep hole drilling machine further includes a guiding mechanism (5), the guiding mechanism (5) including a guiding slide rail (51) and a guiding rod (52), the slide rail being arranged on the top of the base (1) and extending along the first direction, the guiding rod (52) being arranged above the slide rail and extending along the first direction, the bottoms of the first mounting seat (21), the second mounting seat (31) and the third mounting seat (41) being all in guiding fit with the slide rail, the guiding rod (52) being installed on the top of the third mounting seat (41), and the tops of the first mounting seat (21) and the second mounting seat (31) being all in guiding fit with the guiding rod (52).

4. The horizontal deep-hole drilling machine according to claim 1, characterized in that, The horizontal deep hole drilling machine further includes a driving assembly (6), and the driving assembly (6) includes a driving cylinder (61), a linear driving module (62) and a lead screw nut mechanism (63), all of which are arranged on the base (1). The telescopic direction of the power output end of the driving cylinder (61) extends along a first direction. The first mounting seat (21) is arranged at the power output end of the driving cylinder (61). The moving direction of the power output end of the linear driving module (62) extends along the first direction. The third mounting seat (41) is arranged at the power output end of the linear driving module (62). The power output end of the lead screw nut mechanism (63) extends along the first direction. The second mounting seat (31) is connected to the power output end of the lead screw nut mechanism (63).

5. The horizontal deep hole drilling machine according to claim 3, characterized in that, The guiding mechanism (5) further includes two positioning plates (53), and the two positioning plates (53) are respectively arranged on both sides of the third mounting seat (41). The positioning plates (53) are in guiding fit with the guiding rods (52), and the positioning plates (53) are provided with positioning holes. The positioning holes on the two positioning plates (53) are respectively in rotational fit with the first drill rod (23) and the second drill rod (33).

6. The horizontal deep hole drilling machine according to claim 2, characterized in that A rotating bearing and an external gear ring are sleeved on the outer periphery of the chuck (431). The rotating bearing is used to form a rotational fit between the chuck (431) and the third mounting seat (41). A driving gear meshing with the external gear ring is arranged at the power output end of the third driving motor (42).

7. The horizontal deep hole drilling machine according to claim 5, characterized in that, The horizontal deep hole drilling machine further includes an operation panel (7) arranged on the base (1).

8. The horizontal deep hole drilling machine according to claim 5, characterized in that, The guiding mechanism (5) further includes two positioning bearings coaxially arranged in the positioning holes respectively. The inner rings of the two positioning bearings rotate synchronously with the first drill rod (23) and the second drill rod (33) respectively, and the outer rings of the two positioning bearings are fixedly connected to the inner walls of the two positioning holes respectively.

9. The horizontal deep-hole drilling machine according to claim 1, wherein The horizontal deep hole drilling machine further includes a receiving box (8), and the base (1) is arranged on the top of the receiving box (8).

10. A metal pipe production line, characterized in that, It includes the horizontal deep hole drilling machine according to any one of claims 1 to 9.

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