A deep hole drilling machine for motor production

Abstract

The present application relates to the technical field of motor deep hole drilling machine, especially to a deep hole drilling machine for motor production, which comprises a drilling machine main body driving bed, a modular clamping assembly, a rotating limiting assembly, a drill bit assembly and a drilling driving assembly, the drill bit assembly is provided with multiple, multiple drill bit assemblies are evenly installed on the outer ring side of the rotating limiting assembly, the drill bit assembly rotates with the rotating limiting assembly, the drill bit assembly can slide transversely relative to the rotating limiting assembly, the drill bit assembly is elastically connected with the rotating limiting assembly, and the lengths of multiple drill bit assemblies gradually increase, the present application can gradually change the whole of multiple drill bit assemblies, gradually increase the depth of drilling of the lowermost motor rod through the drill bit assembly with gradually increasing length after the whole cooperation of the drilling driving assembly and the rotating limiting assembly, ensure that the drill bit assembly does not have a longer length hanging outside the motor rod when drilling each time, and ensure the drilling precision of the drill bit assembly on the motor rod.

Description

Technical Field

[0001] This invention relates to the technical field of deep hole drilling machines for electric motors, and in particular to a deep hole drilling machine for electric motor production. Background Technology

[0002] Deep hole drilling machines used in motor manufacturing are used for deep hole machining of motor shafts. These shaft-type parts usually require the machining of axial deep holes, and the straightness and coaxiality of the holes must be ensured to meet subsequent assembly requirements. Deep hole drilling machines use specially designed deep hole drill bits. The drill bits make linear feed movements, and the workpiece and the drill bits rotate relative to each other to complete the deep hole machining. Unlike traditional deep hole machining equipment, deep hole drilling machines rely on specific drilling techniques to drill deep holes and precision shallow holes.

[0003] Chinese patent CN120002034B, related to deep hole machining, discloses a small deep hole drilling machine, including a bed, a drill rod box, a support ring assembly, and a guide sleeve assembly. The drill rod box is slidably connected to the linear guide rail of the bed via a drill rod box support plate. Multiple support ring assemblies for supporting and fixing the workpiece are provided on the bed on the drill bit side of the drill rod box. Each support ring assembly also has a support ring support plate between it and the bed. The guide sleeve assembly is fixed to the end of the workpiece near the drill rod box. This invention achieves precise positioning of the drill rod through the support plate and drill rod box. Simultaneously, through the drill rod support and guide sleeve assembly, it achieves stable guidance and positioning of the drill rod during long hole machining, improving the machining accuracy and straightness of slender holes and preventing drill bit breakage. Furthermore, through the cooperation of the chuck and jaws on the support ring assembly, the positional relationship between the workpiece and the drill rod is finely adjusted in real time based on the detection data of the measuring instrument, thereby quickly correcting the workpiece position, improving the workpiece qualification rate, and increasing machining speed and efficiency.

[0004] The aforementioned related technologies and existing technologies have the following drawbacks regarding deep hole machining: To meet the requirements of deep hole machining, the length of the drill rod cutting tool is relatively long. When the drilling depth is shallow, the longer part of the drill rod is suspended on the outside. When the drill rod is suspended and rotates, it will deviate and sway due to the influence of vibration, thereby reducing the accuracy of the drilled hole. Summary of the Invention

[0005] To address the problems mentioned in the background art, the present invention provides a deep hole drilling machine for motor production.

[0006] The present invention provides a deep hole drilling machine for motor production, which adopts the following technical solution: including a main drive bed, a modular clamping assembly, a rotation limit assembly, a drill bit assembly, and a drilling drive assembly.

[0007] The modular clamping assembly is installed on the upper side of the main drive bed of the drilling machine. The modular clamping assembly can clamp multiple workpieces simultaneously, and the main drive bed of the drilling machine can drive the modular clamping assembly to rotate.

[0008] The rotation limiting component is installed on the upper side of the drill press main drive bed. The modular clamping component and the rotation limiting component are located at both ends of the drill press main drive bed, and the drill press main drive bed drives the rotation limiting component to rotate.

[0009] The drill bit assembly is provided in multiple ways. The multiple drill bit assemblies are evenly installed on the outer ring side of the rotation limit assembly. The drill bit assembly rotates with the rotation limit assembly. The drill bit assembly can slide laterally relative to the rotation limit assembly. The drill bit assembly is elastically connected to the rotation limit assembly. The length of the multiple drill bit assemblies gradually increases.

[0010] The drilling drive assembly is connected to the main drive bed of the drilling machine. The main drive bed of the drilling machine drives the drilling drive assembly to move laterally. When the drilling drive assembly moves toward the modular clamping assembly, it pushes the uppermost drill bit assembly among the multiple drill bit assemblies to move laterally.

[0011] Optionally, the modular clamping assembly includes: The main barrel is installed at one end of the main drive bed of the drilling machine, and rotates relative to the main drive bed of the drilling machine.

[0012] Modular clamping cylinders are provided in multiple forms. The modular clamping cylinders are installed inside the main cylinder by bolts. A through groove is provided on the side of the modular clamping cylinder near the axis of the main cylinder.

[0013] A clamping and fixing assembly is installed inside the main cylinder, and the clamping and fixing assembly presses the workpiece inside the modular clamping cylinder through a through groove.

[0014] Optionally, the clamping and fixing assembly includes: Multiple pressure plates, the number of which is the same as the number of modular clamping cylinders, slide through the through slots corresponding to adjacent modular clamping cylinders, and the pressure plates are elastically connected to the inner wall of the main cylinder.

[0015] The shaft is located at the axis of the main cylinder. A frustum column is coaxially mounted on the shaft. One end of the frustum column is tapered. A clamping rod is vertically mounted on the side of the pressure plate near the axis of the main cylinder. The clamping rod slides in contact with the outer ring surface of the frustum column. The shaft is connected to the main drive bed of the drilling machine. The main drive bed of the drilling machine drives the shaft to move along the axis of the main cylinder.

[0016] Optionally, the rotation limiting component includes: The main plate frame is connected to the main drive bed of the drilling machine, which drives the main plate frame to rotate. The drill bit assembly is slidably connected to the main plate frame.

[0017] The horizontal frame is provided in multiple ways, and the number of horizontal frames is the same as the number of drill bit assemblies. The multiple drill bit assemblies are respectively arranged one-to-one inside the multiple horizontal frames, and the horizontal frames are elastically connected to the adjacent drill bit assemblies.

[0018] Optionally, the drill assembly includes: The main mounting block is slidably inserted into the outer ring surface of the main plate frame. The main mounting block can adapt to slide inside the transverse frame and is elastically connected to the transverse frame.

[0019] The drill rod is rotatably mounted on the outside of the main body mounting block.

[0020] Optionally, multiple drill rods are evenly distributed in a circumferential array around the axis of the main body frame, and the multiple drill rods are distributed in a spiral step pattern near the end of the main cylinder.

[0021] Optionally, the drilling drive assembly includes: A movable gantry is connected to the main drive bed of the drilling machine, and the main drive bed of the drilling machine drives the movable gantry to move laterally.

[0022] The drive shaft is rotatably connected to the moving gantry. The drive shaft has a groove coaxially formed on the side near the main frame. The drive shaft rotates relative to the moving gantry.

[0023] Optionally, a prism is coaxially mounted on the end of the drill rod near the movable gantry, the prism is adapted to the prism groove, and the end of the prism away from the drill rod is shaped like a frustum.

[0024] Optionally, the uppermost prism among the multiple prisms is coaxial with the prism groove, and the lowermost modular clamping cylinder among the multiple modular clamping cylinders is coaxial with the prism groove.

[0025] Optionally, the modular clamping cylinder axis is arranged parallel to the main cylinder axis, and multiple modular clamping cylinders are evenly distributed in a circumferential array around the main cylinder axis.

[0026] In summary, the present invention has the following beneficial technical effects: This invention, through the gradual modification of multiple drill bit assemblies, and the overall coordination of the drilling drive assembly and the rotation limit assembly, gradually increases the drilling depth of the motor rod by passing through the drill bit assembly with increasing length. This ensures that each time the drill bit assembly drills, there will not be a long section of the drill bit assembly suspended outside the motor rod, thus guaranteeing the accuracy of the drill bit assembly drilling the motor rod.

[0027] The modular clamping cylinder of this invention is bolted to the inside of the main cylinder. According to the parameters of the motor rod being processed, different modular clamping cylinders with different parameters can be replaced. At the same time, during the movement of the shaft, the clamping rod is pushed by the conical surface of the truncated column, which in turn pushes all the pressure plates to fix the motor rods inside all the modular clamping cylinders at the same time, increasing the convenience of replacing the motor rod.

[0028] This invention utilizes the overall coordination of the rib groove, rib shaft, and transverse frame. The moving gantry drives the drive shaft to make the rib groove fit outside the uppermost rib shaft, causing only the uppermost drill rod to rotate. When drilling the motor rod, only the uppermost drill rod approaches and rotates, while the other drill rods do not move or rotate. This reduces the vibration of the overall structure and prevents resonance caused by the synchronous rotation of multiple drill rods, thereby reducing the drilling depth of the drill rods. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the overall structure in an embodiment of the present invention; Figure 2 This is a schematic diagram of the distribution of the main cylinder and the modular clamping cylinder in an embodiment of the present invention; Figure 3 This is a top view schematic diagram of some structures in an embodiment of the present invention; Figure 4 This is a schematic diagram of the structure inside the main cylinder in an embodiment of the present invention; Figure 5 This is a schematic diagram of the distribution of the pressure plate and clamping rod in an embodiment of the present invention; Figure 6 This is a schematic diagram of the distribution of the transverse frame and the main disk frame in an embodiment of the present invention; Figure 7 This is a schematic diagram of the drill rod distribution in an embodiment of the present invention; Figure 8 This is a schematic diagram of the distribution of the grooves and axes in an embodiment of the present invention.

[0030] Reference numerals: 1. Drilling machine main drive bed; 2. Modular clamping assembly; 21. Main cylinder; 22. Modular clamping cylinder; 23. Clamping and fixing assembly; 231. Pressure plate; 232. Shaft; 233. Frustum column; 234. Clamping rod; 3. Rotation limit assembly; 31. Main plate frame; 32. Transverse frame; 4. Drill bit assembly; 41. Main mounting block; 42. Drill bit rod; 5. Drilling drive assembly; 51. Moving gantry; 52. Drive shaft; 53. Rib groove; 54. Rib shaft. Detailed Implementation

[0031] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0032] It should be noted that all directional indications in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0033] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0034] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. If the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed in this application.

[0035] The following is in conjunction with the appendix Figures 1-8 The present invention will be described in further detail below.

[0036] This invention discloses a deep hole drilling machine for motor production. For example... Figures 1-8 As shown, it includes a main drive bed 1, a modular clamping assembly 2, a rotation limit assembly 3, a drill bit assembly 4, and a drilling drive assembly 5.

[0037] The modular clamping assembly 2 is installed on the upper side of the main drive bed 1 of the drilling machine. The modular clamping assembly 2 can clamp multiple workpieces at the same time, and the main drive bed 1 of the drilling machine can drive the modular clamping assembly 2 to rotate.

[0038] In this embodiment, the modular clamping assembly 2 can clamp multiple motor rods, and the main drive bed 1 of the drilling machine can drive the modular clamping assembly 2 to rotate the multiple motor rods.

[0039] The rotation limit assembly 3 is installed on the upper side of the main drive bed 1 of the drilling machine. The modular clamping assembly 2 and the rotation limit assembly 3 are located at both ends of the main drive bed 1 of the drilling machine. The main drive bed 1 of the drilling machine drives the rotation limit assembly 3 to rotate.

[0040] Multiple drill bit assemblies 4 are provided, and the multiple drill bit assemblies 4 are evenly installed on the outer ring side of the rotation limit assembly 3. The drill bit assemblies 4 rotate with the rotation limit assembly 3. The drill bit assemblies 4 can slide laterally relative to the rotation limit assembly 3. The drill bit assemblies 4 are elastically connected to the rotation limit assembly 3. The drill rod length of the multiple drill bit assemblies 4 gradually increases.

[0041] In this embodiment, by changing the length of the drill rod, the multiple drill bit assemblies 4 are processed by first using a shorter drill rod for a motor rod during the drilling process, and then the length of the drill rod is gradually increased to ensure that the length of the drill bit assembly 4 in the suspended part outside the motor rod is not too long, thereby reducing the shaking of the drill bit assembly 4 during drilling.

[0042] The drilling drive assembly 5 is connected to the main drive bed 1 of the drilling machine. The main drive bed 1 of the drilling machine drives the drilling drive assembly 5 to move laterally. When the drilling drive assembly 5 moves toward the modular clamping assembly 2, it pushes the uppermost drill bit assembly 4 among the multiple drill bit assemblies 4 to move laterally. During the movement, the drill bit assembly 4 is controlled to approach the motor rod for drilling.

[0043] Furthermore, in an optional embodiment, the modular clamping assembly 2 includes a main cylinder 21, a modular clamping cylinder 22, and a clamping and fixing assembly 23.

[0044] The main cylinder 21 is installed at one end of the main drive bed 1 of the drilling machine. The main cylinder 21 rotates relative to the main drive bed 1 of the drilling machine. Multiple modular clamping cylinders 22 are provided. The modular clamping cylinders 22 are installed inside the main cylinder 21 by bolts. A through groove is opened on the side of the modular clamping cylinder 22 near the axis of the main cylinder 21. The clamping and fixing assembly 23 is installed inside the main cylinder 21. The clamping and fixing assembly 23 presses the workpiece inside the modular clamping cylinder 22 through the through groove.

[0045] The modular clamping cylinder 22 is arranged parallel to the axis of the main cylinder 21, and multiple modular clamping cylinders 22 are evenly distributed in a circumferential array around the axis of the main cylinder 21.

[0046] In this embodiment, a through hole is opened on the axial side of the modular clamping cylinder 22. The modular clamping cylinder 22 with the corresponding through hole can be adapted and replaced according to the parameters of different motor rods. The modular clamping cylinder 22 can be replaced modularly by removing the bolts.

[0047] The rotation limit assembly 3 includes a main plate frame 31 and a transverse frame 32.

[0048] The main body frame 31 is connected to the main body drive bed 1 of the drilling machine. The main body drive bed 1 drives the main body frame 31 to rotate. The drill bit assembly 4 is slidably connected to the main body frame 31.

[0049] In this embodiment, a worm gear is coaxially mounted on the main body frame 31, and the worm gear meshes with a worm. The main body drive bed 1 of the drilling machine is equipped with a torsion servo motor that drives the worm to rotate.

[0050] Multiple transverse frames 32 are provided, and the number of transverse frames 32 is the same as the number of drill bit assemblies 4. Multiple drill bit assemblies 4 are respectively arranged inside multiple transverse frames 32, and the transverse frames 32 are elastically connected to adjacent drill bit assemblies 4.

[0051] Furthermore, in an alternative embodiment, the clamping and fixing assembly 23 includes a plurality of pressure plates 231 and a shaft 232.

[0052] The number of pressure plates 231 is the same as the number of modular clamping cylinders 22. The pressure plates 231 slide through the corresponding through slots of adjacent modular clamping cylinders 22. The pressure plates 231 are elastically connected to the inner wall of the main cylinder 21. The shaft 232 is located at the axis of the main cylinder 21. A frustum column 233 is coaxially mounted on the shaft 232. One end of the frustum column 233 is tapered. A clamping rod 234 is vertically mounted on the side of the pressure plate 231 near the axis of the main cylinder 21. The clamping rod 234 slides in contact with the outer ring surface of the frustum column 233. The shaft 232 is connected to the main drive bed 1 of the drilling machine. The main drive bed 1 of the drilling machine drives the shaft 232 to move along the axis of the main cylinder 21.

[0053] In this embodiment, the main body drive bed 1 of the drilling machine is equipped with a drive telescopic cylinder that moves the drive shaft 232 along the axis of the main cylinder 21. At the same time, a worm gear is installed on the outside of the main cylinder 21, and the worm gear meshes with a worm. The main body drive bed 1 of the drilling machine is equipped with an adjustment servo motor that drives the worm to rotate, controlling the angle of the main cylinder 21 to rotate once each time, so that the adjacent modular clamping cylinder 22 rotates to the lowest side.

[0054] When the motor rod is placed into the through hole of the corresponding modular clamping cylinder 22, and the shaft 232 moves along the axis of the main cylinder 21, it drives the conical surface of the frustum column 233 to push all the clamping rods 234, which in turn drive multiple pressure plates 231 to simultaneously press the motor rod inside the corresponding modular clamping cylinder 22.

[0055] The drill assembly 4 includes a main body mounting block 41 and a drill rod 42.

[0056] The main mounting block 41 is slidably inserted into the outer ring surface of the main plate frame 31. The main mounting block 41 can be adapted to slide inside the transverse frame 32. The main mounting block 41 is elastically connected to the transverse frame 32, preferably by a push spring, which pushes the main mounting block 41 to move to one side of the main plate frame 31. The main mounting block 41 is rotatably mounted on the outside of the drill rod 42.

[0057] Multiple drill rods 42 are evenly distributed in a circular array around the axis of the main body plate 31. The multiple drill rods 42 are arranged in a spiral step pattern near the end of the main cylinder 21. The length of the multiple drill rods 42 gradually increases, and the end faces of the multiple drill rods 42 near the end of the main body plate 31 are flush.

[0058] Furthermore, in an alternative embodiment, the drilling drive assembly 5 includes a movable gantry 51 and a drive shaft 52.

[0059] The movable gantry 51 is connected to the main drive bed 1 of the drilling machine. The main drive bed 1 of the drilling machine drives the movable gantry 51 to move laterally. The drive shaft 52 is rotatably connected to the movable gantry 51. The main drive bed 1 of the drilling machine is equipped with a threaded shaft driven by a displacement servo motor. The movable gantry 51 is threadedly sleeved on the outside of the threaded shaft, driving the movable gantry 51 to move horizontally.

[0060] The drive shaft 52 has a coaxial groove 53 on the side near the main body plate 31. The drive shaft 52 rotates relative to the moving gantry 51. The drill rod 42 has a coaxial prism 54 installed on the end near the moving gantry 51. The prism 54 is adapted to the groove 53. A drilling servo motor is installed on one side of the moving gantry 51. A gear is installed at the output end of the drilling servo motor. A gear is installed on the drive shaft 52. The gear at the output end of the drilling servo motor meshes with the gear of the drive shaft 52 to provide rotational power to the drive shaft 52. The end of the prism 54 away from the drill rod 42 is truncated cone-shaped. The uppermost prism 54 among the multiple prisms 54 is coaxially arranged with the groove 53. The lowermost modular clamping cylinder 22 among the multiple modular clamping cylinders 22 is coaxially arranged with the groove 53.

[0061] In this embodiment, when the movable gantry 51 moves closer to the main cylinder 21, the movable gantry 51 drives the drive shaft 52 to have its groove 53 fitted onto the outer side of the uppermost prism 54. The drive shaft 52 drives the prism 54 and the corresponding drill rod 42 to rotate through the prism 54. At the same time, as the movable gantry 51 moves toward the main cylinder 21, the movable gantry 51 pushes the main mounting block 41 toward one side of the main cylinder 21 through the drive shaft 52 and the prism 54, so that the main mounting block 41 elastically moves relative to the transverse frame 32 to store force. During the movement of the drill rod 42, it drills the motor rod clamped at the lowermost side.

[0062] After the moving gantry 51 pushes a drill rod 42 to reciprocate and reset, the main plate 31 rotates once, controlling the adjacent longer drill rod 42 to rotate to the same axis as the groove 53. When the moving gantry 51 reciprocates once again, the clamped motor rod is drilled deeper once more. Through the continuous reciprocating movement of the moving gantry 51, the longer drill rod 42 is continuously drilled into deeper holes in the motor rod, ensuring that no longer drill rod 42 is located outside the processed motor rod during each drilling operation, thus improving the drilling accuracy of the drill rod 42.

[0063] After the longest drill rod 42 drills the deepest hole with the clamped motor rod, and after the drill rod 42 separates from the lowest motor rod, it rotates to drive the new unprocessed motor rod to the lowest side. At the same time, after the drill rod 42 moves to the farthest distance from the main cylinder 21, the main body plate 31 rotates again, so that the shortest drill rod 42 rotates again to be coaxial with the lowest motor rod, and performs a new round of deep hole processing on the new motor rod.

[0064] The working principle is as follows: the modular clamping assembly 2 clamps and fixes multiple motor rods simultaneously. The drilling drive assembly 5 first drives the shortest drill bit assembly 4 to move towards the lowest fixed motor rod, so that the drill bit assembly 4 drills a shorter hole in the lowest motor rod. Then, as the rotation limit assembly 3 rotates, the length of the drill bit assembly 4 that processes the motor rod is continuously increased, gradually increasing the drilling depth of the motor rod. This ensures that no longer drill bit assembly 4 is suspended outside the motor rod during each drilling process, thus ensuring the drilling accuracy.

[0065] The above are all preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A deep hole drilling machine manufactured by an electric motor, comprising: Drilling machine main drive bed (1); Modular clamping assembly (2) is installed on the upper side of the main drive bed (1) of the drilling machine. The modular clamping assembly (2) can clamp multiple workpieces at the same time. The main drive bed (1) of the drilling machine can drive the modular clamping assembly (2) to rotate. Rotation limiting component (3) is installed on the upper side of the main drive bed (1) of the drilling machine. The modular clamping component (2) and the rotation limiting component (3) are located at both ends of the main drive bed (1) of the drilling machine. The main drive bed (1) of the drilling machine drives the rotation limiting component (3) to rotate. The drill bit assembly (4) is provided in multiple ways. Multiple drill bit assemblies (4) are evenly installed on the outer ring side of the rotation limiting assembly (3). The drill bit assembly (4) rotates with the rotation limiting assembly (3). The drill bit assembly (4) can slide laterally relative to the rotation limiting assembly (3). The drill bit assembly (4) is elastically connected to the rotation limiting assembly (3). The length of the multiple drill bit assemblies (4) gradually increases. The drilling drive assembly (5) is connected to the main drive bed (1) of the drilling machine. The main drive bed (1) of the drilling machine drives the drilling drive assembly (5) to move laterally. When the drilling drive assembly (5) moves toward the modular clamping assembly (2), it pushes the uppermost drill bit assembly (4) among the multiple drill bit assemblies (4) to move laterally.

2. The deep hole drilling machine for motor production according to claim 1, characterized in that: The modular clamping assembly (2) includes: Main cylinder (21), the main cylinder (21) is installed at one end of the main drive bed (1) of the drilling machine body, and the main cylinder (21) rotates relative to the main drive bed (1) of the drilling machine body; Modular clamping cylinder (22), multiple modular clamping cylinders (22) are provided. The modular clamping cylinder (22) is installed on the inner side of the main cylinder (21) by bolts. The modular clamping cylinder (22) has a through groove on the side near the axis of the main cylinder (21). The clamping and fixing assembly (23) is installed inside the main cylinder (21) and clamps and fixing assembly (23) presses the workpiece inside the modular clamping cylinder (22) through the through slot.

3. A deep hole drilling machine for motor production according to claim 2, characterized in that: The clamping and fixing assembly (23) includes: Multiple pressure plates (231) are provided, the number of which is the same as the number of modular clamping cylinders (22). The pressure plates (231) slide through the through slots corresponding to adjacent modular clamping cylinders (22), and the pressure plates (231) are elastically connected to the inner wall of the main cylinder (21). The shaft (232) is located on the axis of the main cylinder (21). A frustum column (233) is coaxially mounted on the shaft (232). One end of the frustum column (233) is tapered. A clamping rod (234) is vertically mounted on the side of the pressure plate (231) near the axis of the main cylinder (21). The clamping rod (234) slides in contact with the outer ring surface of the frustum column (233). The shaft (232) is connected to the main drive bed (1) of the drilling machine. The main drive bed (1) of the drilling machine drives the shaft (232) to move along the axis of the main cylinder (21).

4. A deep hole drilling machine for motor production according to claim 2, characterized in that: The rotation limiting component (3) includes: The main body frame (31) is connected to the main body drive bed (1) of the drilling machine. The main body drive bed (1) drives the main body frame (31) to rotate. The drill bit assembly (4) is slidably connected to the main body frame (31). A horizontal frame (32) is provided, and multiple horizontal frames (32) are provided. The number of horizontal frames (32) is the same as the number of drill bit assemblies (4). Multiple drill bit assemblies (4) are respectively arranged inside multiple horizontal frames (32) in a corresponding manner. The horizontal frames (32) are elastically connected to the adjacent drill bit assemblies (4).

5. A deep hole drilling machine for motor production according to claim 4, characterized in that: The drill assembly (4) includes: The main mounting block (41) is slidably inserted into the outer ring surface of the main plate frame (31). The main mounting block (41) can be adapted to slide inside the transverse frame (32). The main mounting block (41) is elastically connected to the transverse frame (32). The drill rod (42) is rotatably mounted on the outside of the main mounting block (41).

6. A deep hole drilling machine for motor production according to claim 5, characterized in that: Multiple drill rods (42) are evenly distributed in a circular array around the axis of the main body frame (31), and multiple drill rods (42) are arranged in a spiral step pattern near the end of the main cylinder (21).

7. A deep hole drilling machine for motor production according to claim 5 or 6, characterized in that: The drilling drive assembly (5) includes: The movable gantry (51) is connected to the main drive bed (1) of the drilling machine, and the main drive bed (1) of the drilling machine drives the movable gantry (51) to move laterally. The drive shaft (52) is rotatably connected to the moving gantry (51). The drive shaft (52) has a groove (53) coaxially opened on the side near the main plate (31). The drive shaft (52) rotates relative to the moving gantry (51).

8. A deep hole drilling machine for motor production according to claim 7, characterized in that: The drill rod (42) has a prism shaft (54) coaxially mounted on one end near the movable gantry (51). The prism shaft (54) is adapted to the prism groove (53), and the end of the prism shaft (54) away from the drill rod (42) is truncated cone-shaped.

9. A deep hole drilling machine for motor production according to claim 8, characterized in that: Among the multiple prisms (54), the uppermost prism (54) is coaxially arranged with the prism groove (53), and among the multiple modular clamping cylinders (22), the lowermost modular clamping cylinder (22) is coaxially arranged with the prism groove (53).

10. A deep hole drilling machine for motor production according to claim 2, characterized in that: The modular clamping cylinder (22) is arranged parallel to the axis of the main cylinder (21), and multiple modular clamping cylinders (22) are evenly distributed in a circumferential array around the axis of the main cylinder (21).

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