Anti-seismic high-strength angle head device

Abstract

The utility model provides an anti-seismic high-strength angle head device, and belongs to the technical field of angle heads. A head shell is fixedly connected to the left end of a main connecting cylinder, and the center line of the head shell perpendicularly intersects with the center line of the main connecting cylinder; a long shaft is rotationally supported in the main connecting cylinder, a head shaft is rotationally supported in the head shell, and the axis of the head shaft perpendicularly intersects with the axis of the long shaft. The right end of the long shaft is fixedly connected with a coupler used for being connected with a machine tool power output shaft, the left end of the long shaft is fixedly connected with a bevel gear I, a bevel gear II is fixed to the head shaft, and the bevel gear I and the bevel gear II are meshed with each other. One end of the head shaft is connected with a taper shank through rotation limiting, the head shaft is hollow, a cutterhead connecting bolt penetrates through the head shaft, one end of the cutterhead connecting bolt is connected with the taper shank, and the other end of the cutterhead connecting bolt extends out of the head shaft and is fixed and tensioned. The device is an angle head device with the depth within the range of 600MM, cutting machining is reliable and free of vibration, the precision of parts is improved, and the consumption cost of blades is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of angle heads, and in particular relates to a shock-resistant high-strength angle head device. Background Art

[0002] The floor-type boring and milling machine is a general-purpose machine tool that can perform drilling, expansion, boring, reaming, flat, flat threading and flat cutting on castings, steel parts and non-ferrous metal parts. The flat rotary table can be fed radially, and can bore larger hole planes, turn external circles and cut grooves, etc. Floor-type boring and milling machines are widely used in mechanical processing in industries such as energy, metallurgy, mining, machinery, power generation equipment, and national defense. They are key equipment for processing box parts. The company currently has a TX6213A digital display floor-type milling and boring machine equipment, and the current milling angle head purchased is 1.1 meters long. In recent years, due to the continuous expansion and development of the company's production scale, the company has undertaken a large number of aerospace parts and oil drilling parts, and the size specifications are diversified, and the requirements for part size accuracy and surface finish are high. The 1.1-meter milling angle head currently purchased by the company has some processing disadvantages and defects. For shallow hole processing of product parts with a depth of 0 to 600 mm, the existing milling angle head material is gray iron 300, which has weak bearing strength and the milling angle head is extended for a long time. The angle head will vibrate during processing, which limits the feed rate of the tool to a very low level, and the blade wears very quickly, resulting in vibration marks on the processed surface, very low processing efficiency, and high blade cost. Therefore, it is necessary to propose improvements. Utility Model Content

[0003] The technical problem solved by the utility model is to provide a shock-resistant and high-strength angle head device. Aiming at the problems of the prior art, the utility model designs a shock-resistant and high-strength angle head that is 420MM shorter than the existing 1.1-meter milling angle head. It is an angle head device for a depth within the range of 600MM. The purpose is to achieve reliable and vibration-free cutting processing, improve the precision of parts, reduce the cost of blade consumption, and improve efficiency.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] Seismic-resistant high-strength angle head device, comprising a main connecting cylinder and a head housing. The head housing is fixedly connected to the left end of the main connecting cylinder, and the center line of the head housing is perpendicular to and intersects the center line of the main connecting cylinder. A long shaft is rotatably supported inside the main connecting cylinder, and a head shaft is rotatably supported inside the head housing. The axis of the head shaft is perpendicular to and intersects the axis of the long shaft. A coupling for connecting with the power output shaft of the machine tool is fixedly connected to the right end of the long shaft. A bevel gear I is fixedly connected to the left end of the long shaft. A bevel gear II is fixed on the head shaft. The bevel gear I and the bevel gear II are meshed with each other. One end of the head shaft is connected with a taper shank through rotational limit. The inside of the head shaft is hollow and a tool disc connecting bolt is passed through it. One end of the tool disc connecting bolt is screwed and connected with the taper shank through threads, and the other end of the tool disc connecting bolt extends out of the head shaft and is tightened by screwing with a gasket and a nut.

[0006] Further limitation to the above solution: The outer shape of the head housing is a square structure and one side is a disc structure for facilitating connection with the main connecting cylinder. The disc structure of the head housing is coaxially opposite to the main connecting cylinder and is connected to the main connecting cylinder through fixing screws I. A semi-circular groove is provided on the outer wall of the main connecting cylinder, and a fixing screw II is placed in the semi-circular groove to connect the main connecting cylinder and the head housing. The contact surface between the disc structure of the head housing and the main connecting cylinder is sealed through an O-ring IV.

[0007] Further limitation to the above solution: Both ends of the long shaft are supported through tapered roller bearings III and one deep groove ball bearing III with a sealing ring. The tapered roller bearing III and the deep groove ball bearing III with a sealing ring at the right end of the long shaft are limited on one side by a shoulder on the shaft and on the other side by a bearing end cover II. An O-ring I is used for sealing between the bearing end cover II and the long shaft. The tapered roller bearing III and the deep groove ball bearing III with a sealing ring at the left end of the long shaft are limited on one side by a shoulder on the shaft and on the other side by a bearing end cover IV and a bushing.

[0008] Further limitation to the above solution: The coupling is connected to the right end of the long shaft through a flat key II, and the right end of the long shaft is fixed through a washer, a round nut locking washer and a lock nut.

[0009] Further limitation to the above solution: The bevel gear I is fixed on the long shaft through a flat key III and a snap ring II. The bevel gear II is fixed on the head shaft through a flat key I. The bevel gear II is limited on one side by a bushing and on the other side by an adjusting gasket.

[0010] Further limitation to the above solution: One end of the head shaft is supported in the head housing through a tapered roller bearing II and one deep groove ball bearing I with a sealing ring. The deep groove ball bearing I with a sealing ring is limited on one side by a bushing. The tapered roller bearing II is limited on one side by a bearing gland III. An O-ring III is used for sealing between the bearing gland III and the head shaft.

[0011] The other end of the head shaft is supported in the head housing by a tapered roller bearing I and a deep groove ball bearing II with a seal on one side. The deep groove ball bearing II with a seal on one side is limited by a shoulder on one side, and the tapered roller bearing I is limited by a snap ring I and a bearing gland I on one side. An O-ring II is used for sealing between the bearing gland I and the head shaft.

[0012] For further limitation of the above solution, the taper shank is adapted to the tapered hole at one end of the head shaft. An annular key is fixedly sleeved on the outer part of the head shaft through a limit screw. The annular ring of the annular key is sleeved on the head shaft and fixed by a limit screw. A dowel key is provided on one end face of the annular ring of the annular key, and the dowel key is inserted into the slot on the taper shank.

[0013] For further limitation of the above solution, an observation hole is provided on the head housing and covered by an observation hole cover plate. Observation holes are also provided at the positions corresponding to the couplings on the main connection cylinder and covered by cover plates; oil nipples are provided on both the main connection cylinder and the head housing.

[0014] For further limitation of the above solution, the total length of the anti-seismic high-strength angle head device is 680 mm.

[0015] For further limitation of the above solution, the main connection cylinder, the long shaft, the head shaft and the annular key are all made of 35CrMo forging material.

[0016] Advantages of the present utility model compared with the prior art:

[0017] 1. In the anti-seismic high-strength angle head in this solution, by changing the manufacturing materials of the main connection cylinder, the long shaft and the head shaft, great improvements are achieved in material hardness, tensile strength and bending strength. The bearing strength of the angle head is enhanced, the vibration of the angle head is eliminated, and the surface finish and dimensional accuracy of the machined parts meet the requirements of the drawing standards.

[0018] 2. The anti-seismic high-strength angle head in this solution is 420 MM shorter than the existing 1.1-meter milling angle head. It is a special angle head device for depths within 600 MM. Through continuous operation in the workshop for more than one year, the entire angle head device operates smoothly, the cutting process is reliable without tremors, effectively improving the precision of parts, reducing the cost of blade consumption, the forgings are quenched and tempered to be harder, powerful, durable, supporting heavy cutting with large depths of cut, with higher efficiency and stronger interchangeability.

[0019] 3. In the existing technology of this solution, when machining parts with a 1.1-meter milling angle head, the maximum feed rate F is 500, while when machining parts with this earthquake-resistant high-strength angle head, the maximum feed rate F is 1000, and the machining speed is increased by 2 times, greatly improving the machining efficiency. The existing 1.1-meter milling angle head consumes 50 - 100 alloy blades per day on average, while this earthquake-resistant high-strength angle head consumes 10 - 20 alloy blades per day on average, and the blade consumption cost is reduced to 1 / 5 of the original, greatly saving costs for the company.

[0020] 4. The tool holder clamping of this earthquake-resistant high-strength angle head in this solution adopts BT40, BT50, etc., which is more convenient for replacing various high-end tools used in drilling, milling, and fine boring machining centers compared to the Morse No. 3 taper shank used for the tool holder clamping of the existing 1.1-meter milling angle head. This makes the tools of the TX6213A digital display floor milling and boring machine equipment and the machining center tools have general interchangeability, greatly expanding the machining diversity and machining range of the TX6213A digital display floor milling and boring machine equipment and improving the machining accuracy.

[0021] 5. In this solution, the taper shank installation method of the earthquake-resistant high-strength angle head adopts a structure that can be taper-fitted with BT40, BT50, etc. and self-made integral keys, i.e., ring keys for positioning, and a high-strength screw fastening structure. The ring key is made of 35CrMo forging material and is quenched and tempered. This structure makes the vibration of the cutter head very small during large feed and heavy cutting, and the machining dimensions are stable and reliable compared to the existing 1.1-meter milling angle head that uses Morse No. 3 taper fit and conventional flat key positioning for tool holder installation.

[0022] 6. On the basis of the connection of the original 4 fixing screws Ⅰ in this solution, 4 fixing screws Ⅱ are added for fixing at a suitable wall thickness position according to the structure of the main connection cylinder. Compared with the 4 bolts used for the connection between the main connection cylinder and the head housing in the existing 1.1-meter milling angle head, the strength and stability are increased by 2 times. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic structural view of the present invention;

[0024] Figure 2 in the present invention Figure 1 is a sectional view taken along the line B - B;

[0025] Figure 3 in the present invention Figure 2 is a sectional view taken along the line H - H;

[0026] Figure 4 in the present invention Figure 3 is a schematic structural view taken along the direction K;

[0027] Figure 5 is a three-dimensional structural view of the present invention. Detailed implementation manners

[0028] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0029] It should be noted that in this article, the terms "include", "comprise" or any other variant thereof are intended to cover a non-exclusive inclusion, such that a process, method, article or device including a series of elements includes not only those elements but also other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the phrase "including a..." does not exclude the presence of additional identical elements in the process, method, article or device including the element.

[0030] Please refer to Figures 1 - 5 for a detailed description of the embodiments of the present invention.

[0031] Embodiment: Refer to Figures 1 - 5 As shown, the anti-seismic high-strength angle head device includes a main connection cylinder 1 and a head housing 2. The head housing 2 is fixedly connected to the left end of the main connection cylinder 1, and the center line of the head housing 2 is vertically intersected with the center line of the main connection cylinder 1. A long shaft 6 is rotatably supported inside the main connection cylinder 1, and a head shaft 3 is rotatably supported inside the head housing 2. The axis of the head shaft 3 is vertically intersected with the axis of the long shaft 6. A coupling 7 for connecting with the power output shaft of the machine tool is fixedly connected to the right end of the long shaft 6. A bevel gear I 5 is fixedly connected to the left end of the long shaft 6. A bevel gear II 4 is fixed on the head shaft 3. The bevel gear I 5 and the bevel gear II 4 are meshed with each other. One end of the head shaft 3 is rotationally and limit-connected with a taper shank 17. The head shaft 3 is hollow inside and a tool disk connection bolt 20 is passed through it. One end of the tool disk connection bolt 20 is threadedly screwed with the taper shank 17, and the other end of the tool disk connection bolt 20 extends out of the head shaft 3 and is screwed and tightened by a gasket 18 and a nut 19.

[0032] Specifically, the total length of the earthquake-resistant high-strength angle head device is 680 mm. This earthquake-resistant high-strength angle head is 420 mm shorter than the existing 1.1-meter milling angle head. It is a special angle head device for depths within 600 mm. Through more than one year of continuous operation at the workshop site, the entire angle head device operates smoothly, with reliable cutting and no vibration, effectively improving the precision of parts, reducing the cost of blade consumption, hardening the forgings through quenching and tempering, being strong and powerful, durable, supporting heavy cutting with large depths of cut, having higher efficiency, and stronger interchangeability.

[0033] Moreover, compared with the existing 1.1-meter milling angle head, when processing parts, the maximum feed rate F is 500 at most. For this earthquake-resistant high-strength angle head, when processing parts, the maximum feed rate F is 1000, and the processing speed is increased by 2 times, greatly improving the processing efficiency. The previous 1.1-meter milling angle head consumed 50 - 100 alloy blades per day on average, while this earthquake-resistant high-strength BT40 angle head consumes 10 - 20 alloy blades per day on average, and the blade consumption cost is reduced to 1 / 5 of the original, saving a great deal of cost for the company.

[0034] In a specific embodiment: The outer shape of the head housing 2 is a square structure, and one side is a disc structure for facilitating connection with the main connection cylinder 1. The disc structure of the head housing 2 is coaxially opposite to the main connection cylinder 1 and is connected to the main connection cylinder 1 through fixing screws Ⅰ43. A semi-circular groove is provided on the outer wall of the main connection cylinder 1, and fixing screws Ⅱ44 are placed in the semi-circular groove to connect the main connection cylinder 1 and the head housing 2; The contact surface between the disc structure of the head housing 2 and the main connection cylinder 1 is sealed by an O-ring Ⅳ37.

[0035] The connection between the main connection cylinder and the head housing of the above structure and the existing 1.1-meter milling angle head uses 4 M16X60 high-strength bolts. On the basis of the connection of the original 4 M16X60 high-strength fixing screws Ⅰ43 for this earthquake-resistant high-strength angle head, according to the structure of the main connection cylinder, 4 M16X40 high-strength fixing screws Ⅱ44 are added at appropriate wall thickness positions, which doubles the strength and stability of this earthquake-resistant high-strength angle head.

[0036] In a specific embodiment: Both ends of the long shaft 6 are supported by tapered roller bearings Ⅲ35 and a deep groove ball bearing Ⅲ40 with a sealing ring on one side; The tapered roller bearing Ⅲ35 and the deep groove ball bearing Ⅲ40 with a sealing ring on the right end of the long shaft 6 are limited on one side by the shoulder on the shaft and on the other side by the bearing end cover Ⅱ14, and the bearing end cover Ⅱ14 and the long shaft 6 are sealed by an O-ring Ⅰ27; The tapered roller bearing Ⅲ35 and the deep groove ball bearing Ⅲ40 with a sealing ring on the left end of the long shaft 6 are limited on one side by the shoulder on the shaft and on the other side by the bearing end cover Ⅳ36 and the bushing 42.

[0037] In a specific embodiment: The coupling 7 is connected to the right end of the long shaft 6 through the flat key II 25, and the right end of the long shaft 6 is fixed by a washer 8, a round nut lock washer 9 and a lock nut 10.

[0038] In a specific embodiment: The bevel gear I 5 is fixed on the long shaft 6 through the flat key III 26 and the snap ring II 31, the bevel gear II 4 is fixed on the head shaft 3 through the flat key I 24, and the bevel gear II 4 is limited on one side by the shaft sleeve 41 and on the other side by the adjusting shim 11.

[0039] In a specific embodiment: One end of the head shaft 3 is supported in the head housing 2 through the tapered roller bearing II 34 and a deep groove ball bearing I 38 with a sealing ring on one side. The deep groove ball bearing I 38 with a sealing ring on one side is limited by the shaft sleeve 41 on one side, the tapered roller bearing II 34 is limited by the bearing gland III 15 on one side, and an O-ring III 29 is used for sealing between the bearing gland III 15 and the head shaft 3;

[0040] The other end of the head shaft 3 is supported in the head housing 2 through the tapered roller bearing I 33 and a deep groove ball bearing II 39 with a sealing ring on one side. The deep groove ball bearing II 39 with a sealing ring on one side is limited by a shoulder on one side, the tapered roller bearing I 33 is limited by the snap ring I 30 and the bearing gland I 12 on one side, and an O-ring II 28 is used for sealing between the bearing gland I 12 and the head shaft 3.

[0041] In a specific embodiment: The taper shank 17 is adapted to the tapered hole at one end of the head shaft 3. An annular key 21 is fixedly sleeved on the outside of the head shaft 3 through a limit screw 22. The annular ring of the annular key 21 is sleeved on the head shaft 3 and fixed by the limit screw 22. A pin key is provided on one end face of the annular ring of the annular key 21, and the pin key is inserted into the slot on the taper shank 17.

[0042] The above structure is compared with the existing installation of the 1.1-meter milling angle head tool holder, which uses a Morse No. 3 taper fit plus a conventional flat key positioning. This anti-seismic and high-strength angle head tool holder installation method uses a BT40 taper fit plus a self-made integral key, that is, an annular key positioning, and a fastening structure of 2-M6 high-strength limit screws 22 is adopted. The annular key is made of 35CrMo forging material and is quenched and tempered. Such a structure makes the vibration of the cutter head very small during large feed and heavy cutting, and the machining size is stable and reliable.

[0043] Moreover, the taper shank clamping of this earthquake-resistant high-strength angle head adopts BT40 and BT50, which is more convenient for replacing various high-end tools used in drilling, milling, and precision boring machining centers compared to the Morse No. 3 taper shank used in the existing 1.1-meter milling angle head tool shank. This enables the tools of the TX6213A digital display floor milling and boring machine equipment and the machining center tools to have general interchangeability, greatly expanding the machining diversity and machining range of the TX6213A digital display floor milling and boring machine equipment and improving the machining accuracy.

[0044] In a specific embodiment: an observation hole is provided on the head housing 2 and covered by an observation hole cover plate 13, and an observation hole is also provided at the position corresponding to the coupling 7 on the main connecting cylinder 1 and covered by a cover plate 16; oil nozzles 32 are provided on both the main connecting cylinder 1 and the head housing 2.

[0045] In a specific embodiment: the main connecting cylinder 1, the long shaft 6, the head shaft 3, and the annular key 21 are all made of 35CrMo forging material.

[0046] In the above structure, the main connecting cylinder of this earthquake-resistant high-strength angle head is made of 35CrMo forging material. 35CrMo belongs to alloy structural steel, which has very high static strength, impact toughness, and relatively high fatigue limit. Its hardenability is higher than that of 40Cr, and it has high creep strength and endurance strength at high temperatures. Tensile strength σb (MPa): ≥985, yield strength σs (MPa): ≥835; while the main connecting cylinder of the existing 1.1-meter milling angle head adopts HT300, with tensile strength σb (MPa) ≥ 300 and bending strength (MPa) ≥ 648. The long shaft and head shaft of this earthquake-resistant high-strength angle head are made of 35CrMo forging material, the matrix is quenched and tempered to HB269 - 300, and the part for installing bearings adopts local high-frequency quenching process with a hardness reaching G52; the long shaft and head shaft of the existing 1.1-meter milling angle head adopt 45 steel with a hardness between HRC42 - 46. It can be seen from this that this earthquake-resistant high-strength angle head has been greatly improved in terms of material hardness, tensile strength, and bending strength, the bearing strength of the angle head has been enhanced, the vibration of the angle head has been eliminated, and the surface finish and dimensional accuracy of the machined parts meet the requirements of the drawing standards.

[0047] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, it is intended to include all changes falling within the meaning and scope of the equivalent elements of the claims in the present utility model. Any reference signs in the claims should not be regarded as limiting the claimed rights.

[0048] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. Earthquake-resistant high-strength angle head device, characterized by: The invention comprises a main connecting cylinder (1) and a head shell (2), wherein the head shell (2) is fixedly connected to the left end of the main connecting cylinder (1), and the center line of the head shell (2) intersects perpendicularly with the center line of the main connecting cylinder (1); a long shaft (6) is rotatably supported inside the main connecting cylinder (1), and a head shaft (3) is rotatably supported inside the head shell (2), and the axis of the head shaft (3) intersects perpendicularly with the axis of the long shaft (6); a coupling (7) for connecting to a power output shaft of a machine tool is fixedly connected to the right end of the long shaft (6), and the left end of the long shaft (6) is fixedly connected to the right end of the long shaft (6). The end of the head shaft (3) is fixedly connected with a bevel gear I (5), and a bevel gear II (4) is fixed on the head shaft (3), and the bevel gear I (5) and the bevel gear II (4) are meshed with each other; one end of the head shaft (3) is connected with a cone handle (17) through a rotation limit, the head shaft (3) is hollow inside and a cutter head connecting bolt (20) is passed through the inside, one end of the cutter head connecting bolt (20) is screwed and connected to the cone handle (17) through a thread, and the other end of the cutter head connecting bolt (20) extends out of the head shaft (3) and is screwed and tightened through a gasket (18) and a nut (19).

2. The anti-vibration high-strength angle head device according to claim 1, characterized in that: The head shell (2) has a square structure and one side is a disc structure for connection with the main connecting tube (1). The disc structure of the head shell (2) is coaxial with the main connecting tube (1) and is connected to the main connecting tube (1) via a fixing screw I (43). A semicircular groove is provided on the outer wall of the main connecting tube (1). The fixing screw II (44) is placed in the semicircular groove and connects the main connecting tube (1) and the head shell (2). The contact surface between the disc structure of the head shell (2) and the main connecting tube (1) is sealed via an O-ring IV (37).

3. The anti-vibration high-strength angle head device according to claim 1, characterized in that: Both ends of the long shaft (6) are supported by a tapered roller bearing III (35) and a deep groove ball bearing III (40) with a sealing ring on one side; the tapered roller bearing III (35) and the deep groove ball bearing III (40) with a sealing ring on one side at the right end of the long shaft (6) are limited by a shoulder on the shaft on one side and by a bearing end cover II (14) on the other side, and the bearing end cover II (14) and the long shaft (6) are sealed by an O-ring I (27); the tapered roller bearing III (35) and the deep groove ball bearing III (40) with a sealing ring on one side at the left end of the long shaft (6) are limited by a shoulder on the shaft on one side and by a bearing end cover IV (36) and a bushing (42) on the other side.

4. The anti-vibration high-strength angle head device according to claim 1, characterized in that: The coupling (7) is connected to the right end of the long shaft (6) via a flat key II (25), and the right end of the long shaft (6) is fixed via a washer (8), a round nut stop washer (9) and a locking nut (10).

5. The anti-vibration high-strength angle head device according to claim 1, characterized in that: The bevel gear I (5) is fixed on the long shaft (6) through a flat key III (26) and a retaining ring II (31), and the bevel gear II (4) is fixed on the head shaft (3) through a flat key I (24). One side of the bevel gear II (4) is limited by a shaft sleeve (41) and the other side is limited by an adjusting gasket (11).

6. The anti-vibration high-strength angle head device according to claim 1, characterized in that: One end of the head shaft (3) is supported in the head housing (2) by a tapered roller bearing II (34) and a deep groove ball bearing I (38) with a sealing ring on one side, the deep groove ball bearing I (38) with a sealing ring on one side is limited by a sleeve (41), and the tapered roller bearing II (34) is limited by a bearing cover III (15) on one side, and the bearing cover III (15) and the head shaft (3) are sealed by an O-ring III (29); The other end of the head shaft (3) is supported in the head housing (2) by a tapered roller bearing I (33) and a deep groove ball bearing II (39) with a sealing ring on one side. The deep groove ball bearing II (39) with a sealing ring on one side is limited by a shoulder. The tapered roller bearing I (33) is limited by a retaining ring I (30) and a bearing cover I (12) on one side. The bearing cover I (12) and the head shaft (3) are sealed by an O-ring II (28).

7. The anti-vibration high-strength angle head device according to claim 1, characterized in that: The conical handle (17) is adapted to the conical hole at one end of the head shaft (3); a ring key (21) is fixedly sleeved on the outside of the head shaft (3) by a limit screw (22); the ring ring of the ring key (21) is sleeved on the head shaft (3) and fixed by the limit screw (22); a latch key is provided on one end surface of the ring ring of the ring key (21); the latch key is inserted into a slot on the conical handle (17).

8. The anti-vibration high-strength angle head device according to claim 1, characterized in that: The head shell (2) is provided with an observation hole and is covered by an observation hole cover plate (13); the main connecting tube (1) is also provided with an observation hole at a position corresponding to the coupling (7) and is covered by a cover plate (16); and both the main connecting tube (1) and the head shell (2) are provided with oil nozzles (32).

9. The anti-vibration high-strength angle head device according to claim 1, characterized in that: The total length of the shock-resistant high-strength angle head device is 680 mm.

10. The anti-vibration high-strength angle head device according to claim 7, characterized in that: The main connecting tube (1), the long shaft (6), the head shaft (3) and the ring key (21) are all made of 35CrMo forging material.

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