A hydraulic nut high-pressure cavity deep hole drilling device

Abstract

This invention belongs to the field of drilling equipment, specifically a deep hole drilling device for a hydraulic nut high-pressure cavity. It is used for deep hole drilling of the high-pressure cavity of a nut body, and includes: a frame and a clamping mechanism mounted on the frame for fixing the nut body to be processed. The clamping mechanism includes a positioning component, a clamping component, and an indexing component. The positioning component includes multiple radially adjustable positioning plates, each with a threaded block on its inner side that mates with the internal thread of the nut body. The clamping component includes an axially movable pressure plate used to press the end face of the nut body. Through the combined action of the threaded block and the pressure plate, the nut body is thread-centered before vertical pressure is applied, thereby converting the traditional clamping of the outer or inner circle under pressure into end face pressure with better rigidity, reducing deformation of the nut body during processing due to radial clamping.

Description

Technical Field

[0001] This invention relates to the field of drilling equipment, specifically a hydraulic nut high-pressure cavity deep hole drilling device. Background Technology

[0002] A hydraulic nut is a fastener that uses hydraulic principles to generate a huge axial thrust. It typically consists of a thin-walled nut body with internal threads and external knurling, an annular piston, sealing elements, and an oil injection nozzle. Its core working principle is to inject high-pressure oil into the sealed cavity, which pushes the piston to move axially, thereby achieving a strong locking of the connected parts. During the machining of the nut body, a deep hole needs to be opened on its surface to connect to the internal high-pressure cavity, so as to install the oil injection nozzle or connect the oil passage.

[0003] In the existing technology, when drilling the nut body, a three-jaw chuck or similar fixture is usually used to radially clamp and fix it from the outer circle, or an internal support fixture is used to tighten it from the inner hole, so as to limit the displacement and vibration of the workpiece under the action of cutting torque and ensure that the drilling process can be carried out stably.

[0004] The aforementioned prior art has the following drawbacks: Since the round nut body is usually large in diameter and very thin in wall thickness, its structural rigidity is poor. Furthermore, the surface has been machined with internal threads and external knurling, resulting in discontinuous clamping surfaces. When a three-jaw chuck is used to apply radial clamping force from the outer circle, the clamping force can easily cause radial elastic deformation of the thin-walled nut body, leading to deviations in the drilling position and affecting the sealing performance and assembly accuracy of the high-pressure cavity.

[0005] Therefore, a hydraulic nut high-pressure cavity deep hole drilling device is proposed to address the above problems. Summary of the Invention

[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0007] The technical solution adopted by this invention to solve its technical problem is as follows: A hydraulic nut high-pressure cavity deep hole drilling device, used for deep hole drilling of the high-pressure cavity of a nut body, includes: a frame; a clamping mechanism, disposed on the frame for fixing the nut body to be processed; the clamping mechanism includes a positioning component, a clamping component, and an indexing component; the positioning component includes multiple radially synchronously adjustable positioning plates, each positioning plate having a threaded block on its inner side that mates with the internal thread of the nut body; the clamping component includes an axially movable pressure plate for clamping the end face of the nut body; the indexing component includes an indexing turntable for driving the nut body to rotate in an indexing manner; a drilling component includes a drill bit, a second slide, and a drive mechanism for driving the drill bit to rotate and feed axially; and an adjusting mechanism connected to the positioning plates and configured to drive the positioning plates to move synchronously radially to adapt to nut bodies of different outer diameters.

[0008] Preferably, the adjustment mechanism includes a first electric cylinder and a support plate fixedly mounted on the indexing turntable; a first connecting plate is fixedly mounted at the output end of the first electric cylinder; a first connecting rod is rotatably mounted between the outer wall of the first connecting plate and the positioning plate, for driving the positioning plate to move synchronously radially along the support plate; by controlling the vertical movement of the first connecting plate through the cooperation of the first connecting plate and the first connecting rod, the size of the inner circle formed by the positioning plate and the threaded block can be adjusted to adapt to the positioning work of different types of nuts, thereby improving the flexibility of the device positioning.

[0009] Preferably, the clamping assembly includes a second electric cylinder; a connecting ring is fixedly provided at the output end of the second electric cylinder; multiple uprights are fixedly provided at the top of the connecting ring; the pressure plate is located on the surface of the uprights, and a lifting plate located below the pressure plate is fixedly provided on the outer wall of the uprights for lifting the processed nut body; before fixing the nut body, the pressure plate is in an upward-suspended state, and the lifting plate is located inside the first slide table, specifically flush with the surface of the first slide table, to avoid obstructing the placement of the nut body; when fixing the nut body, the second electric cylinder can be controlled to drive the connecting ring to move downward, and the connecting ring can drive the uprights and The pressure plate moves downward, fixing the end face of the nut body. After drilling is completed, the first slide is driven to reset, and the first connecting plate is driven upward by controlling the first electric cylinder, driving the threaded block away from the inner wall of the nut body and disengaging the threaded engagement between the two. Then, the second electric cylinder can be controlled to move upward. During the process, the pressure plate first moves away from the nut body, and then the lifting plate moves upward until it contacts the nut body. As the second electric cylinder continues to move upward, the lifting plate can lift the nut body to complete the unloading of the nut body from the surface of the first slide, facilitating the subsequent manual removal of the nut body.

[0010] Preferably, a miniature cylinder is fixedly provided at the top of the upright; a second connecting plate that slides through the upright is fixedly provided at the output end of the miniature cylinder; a second connecting rod is rotatably provided between the second connecting plate and the pressure plate, and the pressure plate and the upright are rotatably connected; when switching the hole position on the nut body, the pressure plate needs to move up to allow the indexing rotation action of the nut body, but the piston movement in the second electric cylinder is based on a lead screw structure, which has a limited speed, resulting in a long indexing operation time. Therefore, after the previous hole is processed and the drilling assembly is retracted, the miniature cylinder can be started and driven to move the second connecting plate up. The second connecting plate can drive the second connecting rod on the outer wall to deflect to pull the pressure plate away from the upper end face of the nut body. After the miniature cylinder is braked, the indexing turntable can perform indexing rotation. This process reduces the time required for the pressure plate to retract through the pneumatic control of the miniature cylinder and the short stroke movement of the second connecting plate, thereby shortening the time required for the indexing rotation process.

[0011] Preferably, a baffle is fixedly provided on the outer wall of the upright; the baffle is located between the pressure plate and the second connecting plate, and is used to limit the movement stroke of the second connecting plate; the baffle can provide physical limit for the second connecting plate, and improve the accuracy of the position of the second connecting plate when the pressure plate presses the end face of the nut body.

[0012] Preferably, the drilling assembly includes a housing fixedly mounted on the outer wall of the second slide; a frame is fixedly mounted on the bottom of the housing; a sliding cover is connected to the inner wall of the frame by a spring, and the drill bit is rotatably mounted inside the sliding cover; the rotational power of the drill bit can be provided by a motor on the housing to drill a hole in the nut body. Initially, the sliding cover is located at the lowest point of the frame under the preload of the spring. As the second slide moves down and the drill bit drills in, the sliding cover can contact the upper end face of the nut body and drive the spring to contract. During this process, the sliding cover can keep the drilling area closed to reduce the splash range of the discharged chips, thereby reducing the possibility of the chips generated in the previous hole contaminating the next hole.

[0013] Preferably, a cooling ring is fixedly provided on the inner wall of the sliding cover for spray cooling of the drill bit; an atomizer is fixedly provided on the outer wall of the housing; the atomizer and the cooling ring are connected by a hose; an air compressor and a delivery pump are connected to the atomizer through a pipe. When the drill bit is drilling, the atomizer can be activated to generate a cutting fluid spray, which is delivered to the cooling ring through the hose and then sprayed out through the inclined holes in the inner wall of the cooling ring to cool the drill bit. This process can be controlled to ensure stable pressure in the inner cavity of the sliding cover by controlling the spray flow rate. In addition, a filter element can also be installed in the holes in the cooling ring to reduce the direct entry of debris into the cooling ring. The filter element is a mature technology, so it will not be elaborated here.

[0014] Preferably, the inner wall of the sliding cover is threaded with an inner ring; the inner ring is located at the bottom of the cooling ring; most of the debris that splashes during drilling will splash and adhere to the inner wall of the sliding cover, i.e. the inner wall of the inner ring. After a certain number of nut bodies have been drilled, the inner ring can be removed from the sliding cover by rotating it, and then cleaned or replaced with a new inner ring, which facilitates the maintenance of the inner wall of the sliding cover.

[0015] Preferably, the inner wall of the inner ring is provided with a plurality of protrusions; the protrusions are arranged in a circumferential array; the inner wall of the inner ring is provided with a plurality of protrusions, which can hook up the large debris generated during drilling, improve the debris capture capability of the inner wall of the inner ring, and facilitate the subsequent recycling and processing of these debris.

[0016] Preferably, a rubber pad is fixedly provided at the bottom of the inner ring; multiple through grooves are provided on the outer wall of the rubber pad; during drilling, the inner ring will frequently come into contact with the upper end face of the nut body as the sliding cover moves down. By providing a rubber pad at the bottom of the inner ring, the rubber pad can improve the sealing between the inner ring and the nut body surface through its own elastic material, preventing debris from leaking out, and also buffering the impact between the inner ring and the nut body.

[0017] The advantages of this invention are: 1. The hydraulic nut high-pressure cavity deep hole drilling device of the present invention uses the cooperation of threaded blocks and pressure plates to center the nut body by threading and then apply vertical pressure, thereby changing the pressure on the outer or inner circle of the traditional clamping to the pressure on the end face with better rigidity, reducing the deformation of the nut body caused by radial clamping during machining.

[0018] 2. The hydraulic nut high-pressure cavity deep hole drilling device of the present invention can adjust the size of the inner circle formed by the positioning plate and the threaded block by controlling the vertical movement of the first connecting plate through the cooperation of the first connecting plate and the first connecting rod, so as to adapt to the positioning work of different types of nuts and improve the positioning flexibility of the device. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the main body of the present invention; Figure 2 This is a schematic diagram of the structure of the first slide in this invention; Figure 3 This is a schematic diagram of the connecting ring structure in this invention; Figure 4 This is a schematic diagram of the structure of the upright pole in this invention; Figure 5 This is a schematic diagram of the positioning plate in this invention; Figure 6 This is a schematic diagram of the structure of the second connecting plate in this invention; Figure 7 This is a schematic diagram of the structure of the second slide in this invention; Figure 8 This is a schematic diagram of the frame structure in this invention; Figure 9 This is a schematic diagram of the inner ring structure in this invention.

[0021] In the diagram: 1. Frame; 12. First slide; 13. Second slide; 14. Indexing turntable; 15. Support plate; 16. Positioning plate; 17. Threaded block; 18. Pressure plate; 2. First electric cylinder; 22. First connecting plate; 23. First connecting rod; 3. Second electric cylinder; 32. Connecting ring; 33. Vertical rod; 34. Lifting plate; 4. Miniature cylinder; 42. Second connecting plate; 43. Second connecting rod; 5. Baffle; 6. Housing; 62. Drill bit; 63. Frame; 64. Sliding cover; 7. Atomizer; 72. Cooling ring; 8. Inner ring; 9. Protrusion; 10. Rubber pad; a. Nut body. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Specific implementation examples are given below.

[0024] Please see Figures 1 to 9 As shown in the embodiment of the present invention, a deep hole drilling device for a hydraulic nut high-pressure cavity is used for deep hole drilling of the high-pressure cavity of a nut body a. The device includes: a frame 1; a clamping mechanism mounted on the frame 1 for fixing the nut body a to be processed; the clamping mechanism includes a positioning component, a clamping component, and an indexing component; the positioning component includes multiple radially synchronously adjustable positioning plates 16, each positioning plate 16 having a threaded block 17 on its inner side that mates with the internal thread of the nut body a; the clamping component includes an axially movable pressure plate 18 for clamping the end face of the nut body a; the indexing component includes an indexing turntable 14 for driving the nut body a to rotate in an indexing manner; a drilling component including a drill bit 62, a second slide 13, and a drive mechanism for driving the drill bit 62 to rotate and feed axially; and an adjusting mechanism connected to the positioning plates 16 and configured to drive the positioning plates 16 to move synchronously radially to adapt to nut bodies a with different outer diameters. The clamping mechanism includes a first slide 12 that moves laterally along the frame 1, and the drilling assembly includes a second slide 13 that moves vertically along the frame 1. Initially, the nut body a can be placed on top of the first slide 12 and fixed by manual or other means. Specifically, the nut body a is tightened onto the inner circle formed by multiple positioning plates 16 and threaded blocks 17 by engaging the threads on the inner wall of the nut body a with the threads on the threaded block 17. Subsequently, the first slide 12 can be controlled to slide radially along the frame 1 to deliver the nut body a to the machining station at the second slide 13. The second slide 13 can also be controlled to slide radially to achieve the feed of the drilling assembly. Before the drilling assembly drills a hole in the nut body a, multiple pressure plates 18 can be controlled to move downward to adjust the screw thread. The top of the mother body a is pressed to complete the fixation. When drilling, the drilling assembly can be used for drilling. When switching the hole position, the pressure plate 18 needs to be controlled to move up and back, and the indexing turntable 14 controls the support plate 15 to rotate according to the preset program. Then, the nut body a on the top of the support plate 15 is rotated to switch the upper and lower hole positions of the nut body a to the bottom of the drilling assembly. After the switching is completed, the pressure plate 18 can fix the nut body a and repeat the above drilling work. Through the cooperation of the threaded block 17 and the pressure plate 18, the nut body a is threaded and centered and then vertically pressed. This converts the pressure on the outer or inner circle of the traditional clamping into pressure on the end face with better rigidity, reducing the deformation of the nut body a due to radial clamping during processing. It is worth mentioning that the sliding of the first slide table 12 and the second slide table 13 is electrically controlled, and the transmission principle can be a gear rack or a lead screw and nut pair. The indexing turntable 14 is based on worm gear indexing and is controlled by a servo motor. These are all mature technologies, so they will not be elaborated on further. In addition, the positions of the multiple pressure plates 18 are pre-designed so that they do not interfere with the drilling components in space and will not hinder the drilling work.

[0025] Please see Figures 3 to 5 As shown, the adjustment mechanism includes a first electric cylinder 2 and a support plate 15 fixedly mounted on the top of the indexing turntable 14; a first connecting plate 22 is fixedly mounted on the output end of the first electric cylinder 2; a first connecting rod 23 is rotatably mounted between the outer wall of the first connecting plate 22 and the positioning plate 16, for driving the positioning plate 16 to move synchronously radially along the support plate 15. For nut bodies a of different sizes and models, before positioning, the first electric cylinder 2 can be controlled according to the preset data of the program to drive the first connecting plate 22 to move vertically. When the first connecting plate 22 moves, it can drive the first connecting rod 23 on the outer wall to deflect, and the first connecting rod 23 controls multiple positioning plates 16 to expand or contract to form inner circles of different sizes. The threaded block 17 is detachably installed on the outer wall of the positioning plate 16, specifically by means of threaded connection, etc. By replacing different threaded blocks 17 to adapt to the internal threads of different models of nut bodies a, the positioning of different models of nut bodies a can be adapted. Through the cooperation of the first connecting plate 22 and the first connecting rod 23, the vertical movement of the first connecting plate 22 can be controlled to adjust the size of the inner circle formed by the positioning plate 16 and the threaded block 17 to adapt to the positioning of different models of nut bodies a, thereby improving the flexibility of the device positioning.

[0026] Please see Figures 3 to 6 As shown, the clamping assembly includes a second electric cylinder 3; a connecting ring 32 is fixedly provided at the output end of the second electric cylinder 3; a plurality of uprights 33 are fixedly provided at the top of the connecting ring 32; the pressure plate 18 is located on the surface of the uprights 33, and a lifting plate 34 located below the pressure plate 18 is fixedly provided on the outer wall of the uprights 33 for lifting the processed nut body a; Before fixing the nut body a, the pressure plate 18 is in an upward-suspended state, and the lifting plate 34 is located inside the first slide table 12, specifically flush with the surface of the first slide table 12, to avoid obstructing the placement of the nut body a. When fixing the nut body a, the second electric cylinder 3 can be controlled to drive the connecting ring 32 to move downward. The connecting ring 32 can drive the upright 33 and the pressure plate 18 to move downward, so that the pressure plate 18 fixes the end face of the nut body a. After drilling is completed, the first slide table 12 is driven to reset, and the first connecting plate 22 is driven upward by controlling the first electric cylinder 2, driving the threaded block 17 away from the first connecting plate 22. The inner wall of nut body a is disengaged from the threaded connection. Then, the second electric cylinder 3 can be controlled to drive the connecting ring 32 to move upward. During the piston retraction of the second electric cylinder 3, the pressure plate 18 and the lifting plate 34 can move upward with the connecting ring 32. During the upward movement, the pressure plate 18 will move away from nut body a, while the lifting plate 34 will move up to contact nut body a. As the connecting ring 32 continues to move upward, the lifting plate 34 can lift nut body a to complete the discharge of nut body a from the surface of the first slide table 12, which facilitates the subsequent manual removal of nut body a.

[0027] Please see Figure 6 As shown, a miniature cylinder 4 is fixedly provided at the top of the upright 33; a second connecting plate 42 that slides through the upright 33 is fixedly provided at the output end of the miniature cylinder 4; a second connecting rod 43 is rotatably provided between the second connecting plate 42 and the pressure plate 18, and the pressure plate 18 and the upright 33 are rotatably connected. When switching the hole position on the nut body a, the pressure plate 18 needs to move upward to allow the indexing rotation of the nut body a. However, the piston movement inside the second electric cylinder 3 is based on a lead screw structure, which has a limited speed, resulting in a long indexing operation time. Therefore, after the previous hole is machined and the drilling assembly is retracted, the micro cylinder 4 can be started and drive the second connecting plate 42 to move upward. The second connecting plate 42 can drive the second connecting rod 43 on the outer wall to deflect and pull the pressure plate 18 away from the upper end face of the nut body a. After the micro cylinder 4 is braked, the indexing turntable 14 can perform indexing rotation. This process reduces the time required for the pressure plate 18 to retract through the pneumatic control of the micro cylinder 4 and the short stroke movement of the second connecting plate 42, thereby shortening the time required for the indexing rotation process.

[0028] Please see Figure 6 As shown, a baffle 5 is fixedly provided on the outer wall of the upright 33; the baffle 5 is located between the pressure plate 18 and the second connecting plate 42, and is used to limit the movement stroke of the second connecting plate 42; The baffle 5 provides a physical limit for the second connecting plate 42, improving the accuracy of the position of the second connecting plate 42 when the pressure plate 18 presses the end face of the nut body a.

[0029] Please see Figures 7 to 9 As shown, the drilling assembly includes a housing 6 fixedly mounted on the outer wall of the second slide 13; the bottom of the housing 6 is provided with a rotatable drill bit 62 and a fixedly mounted frame 63; the inner wall of the frame 63 is connected to a sliding cover 64 by a spring, and the drill bit 62 is located inside the sliding cover 64. The rotational power of the drill bit 62 can be provided by the motor on the housing 6 to drill the nut body a. Initially, the sliding cover 64 is located at the lowest point of the frame 63 under the preload of the spring. As the second slide 13 moves down and the drill bit 62 drills in, the sliding cover 64 can contact the upper end face of the nut body a and drive the spring to contract. During this process, the sliding cover 64 can keep the drilling area closed to reduce the splash range of the discharged chips, thereby reducing the contamination of the next hole caused by the chips generated in the previous hole.

[0030] Please see Figure 8 and Figure 9 As shown, a cooling ring 72 is fixedly provided on the inner wall of the sliding cover 64 for spray cooling of the drill bit 62; an atomizer 7 is fixedly provided on the outer wall of the housing 6; the atomizer 7 and the cooling ring 72 are connected by a hose; The inner wall of the cooling ring 72 is inclined towards the drill bit 62 and has multiple holes on the inclined surface. The atomizer 7 is connected to an air compressor and a delivery pump through a pipe. When the drill bit 62 is drilling, the atomizer 7 can be activated to generate a cutting fluid spray, which is delivered to the cooling ring 72 through a hose and then sprayed out through the inclined holes in the inner wall of the cooling ring 72 to cool the drill bit 62. The holes in the cooling ring 72 can also be equipped with filters to reduce the direct entry of debris into the cooling ring 72. In addition, the design of the hole diameter can be selected with reference to the correspondence between coolant flow rate and hole diameter given in the standard "VDI3209 External Cooling Deep Hole Boring" to ensure the formation of a stable high-pressure atomized flow field in deep hole machining and reduce the impact of metal debris during drilling.

[0031] Please see Figure 8 and Figure 9 As shown, the inner wall of the sliding cover 64 is threaded with an inner ring 8; the inner ring 8 is located at the bottom of the cooling ring 72; Most of the debris that flies out during drilling by drill bit 62 will fly and adhere to the inner wall of sliding cover 64, that is, the inner wall of inner ring 8. After a certain number of nut bodies a have been drilled, inner ring 8 can be removed from sliding cover 64 by rotating it, and then cleaned or replaced with a new inner ring 8, which facilitates the maintenance of the inner wall of sliding cover 64.

[0032] Please see Figure 8 and Figure 9 As shown, the inner wall of the inner ring 8 is fixedly provided with a plurality of protrusions 9; the protrusions 9 are arranged in a circumferential array; The inner wall of the inner ring 8 is provided with multiple protrusions 9. The protrusions 9 can hook up the chips generated during drilling, especially large chips, thereby improving the chip capture capability of the inner wall of the inner ring 8 and facilitating the subsequent recycling and processing of these chips.

[0033] Please see Figure 8 and Figure 9 As shown, a rubber pad 10 is fixedly provided at the bottom of the inner ring 8; the outer wall of the rubber pad 10 is provided with multiple through grooves; During drilling, the inner ring 8 will frequently come into contact with the upper end face of the nut body a as the sliding cover 64 moves down. By setting a rubber pad 10 at the bottom of the inner ring 8, the rubber pad 10 can buffer the impact between the inner ring 8 and the nut body a through its own elastic material, and the through groove opened on the surface of the rubber pad 10 can also facilitate the discharge of the cutting fluid accumulated in the inner ring 8.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A deep hole drilling device for a high-pressure cavity of a hydraulic nut, used for deep hole drilling of the high-pressure cavity of a nut body (a), characterized in that: include: Rack (1), A clamping mechanism is provided on the frame (1) for fixing the nut body (a) to be processed. The clamping mechanism includes a positioning component, a clamping component, and an indexing component. The positioning component includes multiple positioning plates (16) that can be radially and synchronously adjusted. Each positioning plate (16) has a threaded block (17) on its inner side that mates with the internal thread of the nut body (a). The clamping component includes a pressure plate (18) that can be axially moved. The pressure plate (18) is used to clamp the end face of the nut body (a). The indexing component includes an indexing turntable (14) for driving the nut body (a) to rotate in an indexing manner. The drilling assembly includes a drill bit (62), a second slide (13), and a drive mechanism for driving the drill bit (62) to rotate and feed axially; An adjustment mechanism, connected to the positioning plate (16), is configured to drive the positioning plate (16) to move radially synchronously to accommodate nut bodies (a) with different outer diameters.

2. The hydraulic nut high-pressure cavity deep hole drilling device according to claim 1, characterized in that: The adjustment mechanism includes a first electric cylinder (2) and a support plate (15) fixedly installed on the top of the indexing turntable (14); the output end of the first electric cylinder (2) is fixedly provided with a first connecting plate (22); a first connecting rod (23) is rotatably provided between the outer wall of the first connecting plate (22) and the positioning plate (16) for driving the positioning plate (16) to move synchronously radially along the support plate (15).

3. The hydraulic nut high-pressure cavity deep hole drilling device according to claim 1, characterized in that: The clamping assembly includes a second electric cylinder (3); a connecting ring (32) is fixedly provided at the output end of the second electric cylinder (3); a plurality of uprights (33) are fixedly provided at the top of the connecting ring (32); the pressure plate (18) is located on the surface of the uprights (33), and a lifting plate (34) located below the pressure plate (18) is fixedly provided on the outer wall of the uprights (33) for lifting the processed nut body (a).

4. The hydraulic nut high-pressure cavity deep hole drilling device according to claim 3, characterized in that: A miniature cylinder (4) is fixedly provided at the top of the pole (33); a second connecting plate (42) is fixedly provided at the output end of the miniature cylinder (4) and slides through the pole (33); a second connecting rod (43) is rotatably provided between the second connecting plate (42) and the pressure plate (18), and the pressure plate (18) and the pole (33) are rotatably connected.

5. A deep hole drilling device for a hydraulic nut high-pressure cavity according to claim 3, characterized in that: A baffle (5) is fixedly provided on the outer wall of the upright (33); the baffle (5) is located between the pressure plate (18) and the second connecting plate (42) and is used to limit the movement of the second connecting plate (42).

6. The hydraulic nut high-pressure cavity deep hole drilling device according to claim 1, characterized in that: The drilling assembly includes a housing (6) fixedly disposed on the outer wall of the second slide (13); a frame (63) is fixedly disposed at the bottom of the housing (6); a sliding cover (64) is connected to the inner wall of the frame (63) by a spring, and the drill bit (62) is rotatably disposed inside the sliding cover (64).

7. The hydraulic nut high-pressure cavity deep hole drilling device according to claim 6, characterized in that: The inner wall of the sliding cover (64) is fixedly provided with a cooling ring (72) for spray cooling of the drill bit (62); the outer wall of the housing (6) is fixedly provided with an atomizer (7); the atomizer (7) and the cooling ring (72) are connected by a hose.

8. The hydraulic nut high-pressure cavity deep hole drilling device according to claim 7, characterized in that: The inner wall of the sliding cover (64) is threaded with an inner ring (8); the inner ring (8) is located at the bottom of the cooling ring (72).

9. A deep hole drilling device for a hydraulic nut high-pressure cavity according to claim 8, characterized in that: The inner wall of the inner ring (8) is provided with a plurality of protrusions (9); the protrusions (9) are arranged in a circumferential array.

10. A deep hole drilling device for a hydraulic nut high-pressure cavity according to claim 8, characterized in that: A rubber pad (10) is fixedly provided at the bottom of the inner ring (8); multiple through grooves are provided on the outer wall of the rubber pad (10).

Images