Internal meshing gear honing machine

By optimizing the structural design of the internal gear honing machine, adopting a small-diameter clamping part and coaxial support bearings, the size and cost of the support bearings are reduced, solving the problem of high cost in existing technologies, and achieving high-precision and low-cost processing results.

CN223801696UActive Publication Date: 2026-01-16CHONGQING HENGBO MASCH MFG CO LTD
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Patent Information

Application Number
CN202520170178.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-24
Publication Date
2026-01-16
Estimated Expiration
2035-01-24

AI Technical Summary

Technical Problem

The existing internal gear honing machines have large and high-precision support bearings, resulting in high equipment and maintenance costs, making it difficult to meet the needs of high-precision machining and causing excessive costs.

Method used

The maximum outer diameter of the clamping part using the gear clamping mechanism is smaller than the minimum inner diameter of the honing wheel. The gear is fed into the honing cylinder through the Z-axis feed mechanism. The honing cylinder is coaxially set in the vertical support cavity, reducing the size of the support bearing and lowering its cost. The coaxial accuracy and adaptability of the honing cylinder are improved through the rotary drive mechanism and the tilt drive mechanism.

Benefits of technology

This approach achieves reduced equipment and maintenance costs while maintaining machining accuracy, and improves the overall efficiency and precision of the honing machine.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an internal gearing gear honing machine which comprises a machine body and a honing head assembly arranged in the middle of the machine body, the back side of the machine body is provided with a vertically-arranged stand column, the stand column is provided with a Z-axis supporting plate in a lifting mode through a vertically-arranged Z-axis feeding mechanism, and the Z-axis supporting plate is provided with a vertically-arranged gear jacking and clamping mechanism. A clamping part of the gear jacking and clamping mechanism extends downwards and is suspended below the Z-axis supporting plate; the honing head assembly comprises a honing machine shell, a circular supporting cavity is vertically formed in the honing machine shell, and a supporting hole is coaxially formed in the bottom of the supporting cavity. A honing barrel is coaxially arranged in the supporting cavity, honing wheels which are oppositely arranged in a protruding mode are coaxially installed in the honing barrel, and the honing wheels are located at the upper end of the honing barrel. And a honing shaft is coaxially arranged at the lower end of the honing cylinder, and the honing shaft is rotatably mounted in the supporting hole through a supporting bearing. The utility model has the advantages that the structure design is reasonable, the processing precision requirement can be met, the cost can be reduced, and the like.
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Description

TECHNICAL FIELD

[0001] The utility model relates to gear machining and manufacturing technical field, especially a kind of internal meshing gear honing machine. BACKGROUND

[0002] High-precision hard tooth surface gear is indispensable mechanical transmission component in the field such as automobile, wind power generation, ship, machine tool, aerospace, high-speed rail, etc.The main purpose of hard tooth surface precision gear honing finish machining process is to realize the maximum load capacity and minimum transmission noise of gear.High-precision hard tooth surface gear honing finish machining process is effective manufacturing technology to realize the maximum load capacity and minimum transmission noise of high-quality gear.The traditional gear hobbing, gear shaping, gear shaving, heat treatment and other machining processes cannot meet the requirements of transmission precision, transmission noise and reducing manufacturing cost of gear in high-end equipment, and the corresponding hard tooth surface gear honing finish machining method becomes the leading direction of gear honing manufacturing technology research, gear honing process can reach high dimensional accuracy, shape accuracy and low tooth surface roughness, and has high efficiency, low cost, no tooth surface burn, so it is widely used in hard tooth surface gear processing after heat treatment.

[0003] The existing internal meshing gear honing machine usually sets up a top clamping mechanism on the axial both ends of honing wheel to clamp gear so that honing head is in the form of ring structure with the middle part through, to enable gear and honing wheel to mesh with each other.Honing wheel rotates in honing head, and support bearing is arranged between honing wheel and honing head, the size of support bearing is usually larger than that of honing wheel, and the precision of support bearing is also required to be high to ensure the precision of gear honing, that is, the support bearing of existing gear honing machine needs to meet the requirements of large size and high precision, and under the same precision requirement, the larger the size of bearing is, the higher the cost will be, so that the overall cost and maintenance cost of gear honing machine are high. SUMMARY

[0004] In view of the above technical problems of prior art, the utility model provides an internal meshing gear honing machine with reasonable structure design, which can meet the requirements of machining precision and reduce cost.

[0005] To solve the above technical problems, the utility model adopts the following technical scheme:

[0006] The application discloses an internal meshing gear honing machine, which comprises a bed body and a honing head assembly arranged in the middle of the bed body, the back side of the bed body is provided with a vertical column, the Z-axis support plate is arranged on the vertical column through a vertical Z-axis feeding mechanism, the Z-axis support plate is provided with a gear top clamping mechanism arranged in the vertical direction, the clamping part of the gear top clamping mechanism extends downwards and is suspended below the Z-axis support plate, the honing head assembly comprises a honing machine shell, a circular support cavity is arranged in the vertical direction in the honing machine shell, the bottom of the support cavity is provided with a support hole arranged in the coaxial direction, the support cavity is provided with a honing barrel arranged in the coaxial direction, the honing barrel is provided with a honing wheel arranged in the opposite direction and arranged in the coaxial direction, the honing wheel is arranged at the upper end of the honing barrel, the lower end of the honing barrel is provided with a honing shaft arranged in the coaxial direction, the honing shaft is rotatably arranged in the support hole through a support bearing, the honing barrel or the honing shaft is connected with a rotary driving mechanism, the maximum circumscribed circle diameter of the clamping part of the gear top clamping mechanism is smaller than the minimum inner diameter of the honing wheel, and the clamping part can extend into the honing barrel.

[0007] With the above structure, the gear is clamped by the clamping part of the gear top clamping mechanism which is suspended downwards, and since the maximum circumscribed circle diameter of the clamping part is smaller than the minimum inner diameter of the honing wheel, the clamped gear can be sent downwards into the honing barrel together with the clamping part through the Z-axis feeding mechanism, and the gear is meshed with the honing wheel. The structure does not need to arrange the gear top clamping mechanism on both sides of the honing wheel, so the honing head does not need to be arranged as a through annular structure, and only a relatively deep honing barrel needs to be arranged to accommodate the extension length of the clamping part. Meanwhile, the honing barrel is arranged in the coaxial direction in the vertical support cavity, and the honing shaft at the lower end is arranged in the coaxial direction on the support hole. Since the size of the support hole is small, the size of the support bearing between the honing shaft and the support hole is also small. Compared with the support bearing of the honing head in the prior art, the support bearing with a smaller size has a lower cost under the same precision requirement, so that the equipment cost and the maintenance cost can be reduced. In addition, the honing barrel is arranged in the vertical direction through the honing shaft, so that the bending moment caused by the increase of the axial size of the honing barrel can be avoided, and the gear honing precision can be further ensured.

[0008] Further, the gear top clamping mechanism comprises a honing spindle arranged in the vertical direction downwards on the Z-axis support plate, the lower end of the honing spindle is provided with a head frame part, a tail frame backing plate is arranged in parallel on one side of the honing spindle, the lower end of the tail frame backing plate extends downwards and is suspended below the Z-axis support plate, the tail frame backing plate is provided with a tail frame support plate which is arranged in the vertical direction through a tail frame feeding mechanism, the lower end of the tail frame support plate is provided with a tail frame part which is arranged in the coaxial direction towards one side of the honing spindle, and the head frame part and the tail frame part form a gear clamping space.

[0009] Further, the tailstock feeding mechanism comprises a tailstock guide rail vertically arranged on the tailstock base plate, and the tailstock support plate is slidably mounted on the tailstock guide rail through a sliding block; the tailstock base plate and the tailstock support plate are provided with a vertical screw rod, and the upper end of the screw rod is drivingly connected with a tailstock driving motor, and the screw rod nut on the screw rod is connected with the tailstock support plate.

[0010] Further, an X-axis support plate is arranged on the column, and the X-axis support plate is transversely movably mounted on the column through a transversely arranged X-axis feeding mechanism and can be transversely moved above the honing head assembly; and the Z-axis support plate is liftablely mounted on the X-axis support plate through a vertically arranged Z-axis feeding mechanism.

[0011] In this way, after gear tooth honing, the Z-axis support plate can be moved to a position away from the honing head assembly under the driving of the X-axis support plate, thereby facilitating loading and unloading.

[0012] Further, a vertically arranged balance cylinder is mounted on one side of the X-axis support plate through a support seat, the Z-axis support plate is provided with a pushing seat vertically opposite to the support seat, and the balance cylinder's telescopic rod is connected to the pushing seat.

[0013] In this way, the balance cylinder balances and supports the weight of the Z-axis support plate and its accessories, so that the Z-axis will not generate additional errors due to load changes when moving, thereby improving the positioning accuracy of the Z-axis. Meanwhile, the Z-axis feeding mechanism only needs to provide the power required for feeding, without the need to overcome the weight of the components, thereby reducing the burden of the Z-axis feeding mechanism.

[0014] Further, the X-axis feeding mechanism comprises an X-axis guide rail transversely mounted on the column, the X-axis support plate is slidably mounted on the X-axis guide rail through a sliding block, and the X-axis support plate and the column are provided with a transversely arranged X-axis linear driving mechanism; and the Z-axis feeding mechanism comprises a Z-axis guide rail vertically mounted on the X-axis support plate, the Z-axis support plate is slidably mounted on the Z-axis guide rail through a sliding block, and the Z-axis support plate and the X-axis support plate are provided with a vertically arranged Z-axis linear driving mechanism.

[0015] Further, the X-axis linear driving mechanism and the Z-axis linear driving mechanism are screw nut mechanisms, and a driving motor is connected to the screw nut mechanisms.

[0016] Further, the rotary driving mechanism comprises a stator assembly coaxially embedded in the support cavity, and a permanent magnet matching the stator assembly is embedded on the outer wall of the honing cylinder.

[0017] In this way, on the one hand, the whole honing barrel can be used as a rotor part of the motor to drive the honing barrel to rotate, and on the other hand, the honing barrel can be coaxially supported in the supporting cavity by the magnetic force between the stator assembly and the permanent magnet, so that the coaxial precision of the honing barrel during rotation is higher.

[0018] Further, the honing head assembly comprises a honing head support arranged on the bed body, and the two sides of the honing barrel shell are rotatably arranged on the honing head support through coaxially arranged swing shafts, and the swing shafts are located at the upper end of the honing barrel shell.

[0019] In this way, the honing barrel coaxially arranged in the supporting cavity of the honing barrel shell is driven to rotate by the tilt angle driving mechanism, so that different working postures can be adapted.

[0020] Further, the tilt angle driving mechanism comprises an arc-shaped rack arranged on the honing barrel shell, and the arc-shaped rack is coaxially arranged with the swing shaft; and a tilt angle driving motor is arranged on the honing head support, and the output end of the tilt angle driving motor is drivingly connected with a tilt angle driving gear which is arranged in meshing with the arc-shaped rack.

[0021] In this way, the tilt angle driving motor drives the tilt angle driving gear to rotate, drives the arc-shaped rack to move around the axis of the swing shaft, and thus drives the whole honing barrel shell to rotate around the axis of the swing shaft.

[0022] In summary, the honing machine has the advantages of reasonable structure design, can meet the requirements of machining precision, and can reduce the cost. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a schematic view of the overall structure of the embodiment.

[0024] Figure 2 It is a schematic view of the structure of the honing head assembly.

[0025] Figure 3 It is a schematic view of the structure of the honing barrel shell.

[0026] Figure 4 It is a schematic view of the structure of the honing barrel shell. Figure 2

[0027] Figure 5 It is a schematic view of the structure of the honing barrel shell. Figure 2

[0028] Figure 6 It is a schematic view of the structure of the honing feed assembly. Figure 7

[0029] It is a schematic view of the structure of the honing feed assembly.​​Figure 8 This is a schematic diagram of the gear clamping mechanism. Detailed Implementation

[0030] The present invention will be further described in detail below with reference to the embodiments.

[0031] In specific implementation: a dual-station vertical gear honing machine, such as Figure 1 As shown, the honing head assembly includes a bed 1 and a honing head assembly 2 disposed in the middle of the bed 1. The back side of the bed 1 has a vertically arranged column 3, which extends along the length of the bed 1. A honing feed assembly is disposed on each side of the honing head assembly 2. The honing feed assembly includes a Z-axis support plate 4 and an X-axis support plate 6. The X-axis support plate 6 is laterally movable on the column 3 through a laterally arranged X-axis feed mechanism and can be moved above the honing head assembly 2. The Z-axis support plate 4 is vertically movable on the X-axis support plate 6 through a vertically arranged Z-axis feed mechanism. The Z-axis support plate 4 has a vertically arranged gear clamping mechanism 5, the clamping part of which extends downward and is suspended below the Z-axis support plate 4.

[0032] like Figures 2 to 5 As shown, the honing head assembly 2 includes a honing head support 21 and a honing housing 22 vertically mounted on the honing head support 21. A circular support cavity 221 is vertically arranged inside the honing housing 22, and the bottom of the support cavity 221 has a coaxially arranged support hole. A honing cylinder 23 is coaxially arranged inside the support cavity 221, and a honing wheel 24 is coaxially mounted inside the honing cylinder 23, with relatively protruding honing wheels. The grinding wheel 24 is located at the upper end of the honing cylinder 23; the lower end of the honing cylinder 23 has a honing shaft 25 coaxially arranged, and the honing shaft 25 is rotatably installed in the support hole through the support bearing 251; a rotary drive mechanism 27 is connected to the honing cylinder 23 or the honing shaft 25; the maximum outer circle diameter of the clamping part of the gear clamping mechanism 5 is smaller than the minimum inner diameter of the honing wheel 24, and can extend into the honing cylinder 23.

[0033] With the above structure, the gear is clamped by the downwardly suspended clamping part of the gear clamping mechanism, and since the maximum circumscribed circle diameter of the clamping part is smaller than the minimum inner diameter of the honing wheel, the clamped gear can be fed downward into the honing barrel together with the clamping part through the Z-axis feeding mechanism, and is matched with the honing wheel for gear honing. The structure does not need to arrange the gear clamping mechanism on both sides of the honing wheel, so the honing head does not need to be arranged as a through annular structure, but only needs to arrange a relatively deep honing barrel to accommodate the extension length of the clamping part. Meanwhile, the honing barrel is coaxially arranged in the vertical support cavity, and the honing shaft at the lower end is coaxially arranged on the support hole. Since the support hole is small in size, the support bearing between the honing shaft and the support hole is also small in size. Compared with the support bearing of the existing structure of the honing head, the smaller support bearing is lower in cost under the same precision requirement, so that the equipment cost and maintenance cost can be reduced. In addition, the honing barrel is arranged vertically through the honing shaft, which can avoid the bending moment caused by the increase of the axial size of the honing barrel, and is more conducive to ensuring the gear honing precision. Meanwhile, the two groups of honing feeding assemblies can work alternately, one group can perform gear honing while the other group can perform loading and unloading, so that the machining efficiency can be greatly improved.

[0034] In implementation, the rotating driving mechanism 27 includes a stator assembly 271 coaxially embedded in the support cavity 221, and a permanent magnet 272 embedded on the outer wall of the honing barrel 23 and matched with the stator assembly 271.

[0035] In this way, on the one hand, the entire honing barrel can be used as a rotor part of the motor for driving the honing barrel to rotate, and on the other hand, the magnetic force between the stator assembly and the permanent magnet can be used to coaxially support the honing barrel in the support cavity, so that the coaxial precision of the honing barrel during rotation is higher.

[0036] As shown in Figure 4 and Figure 5 , the honing machine shell 22 is rotatably arranged on the honing head support 21 through the coaxially arranged swing shaft 222, and the swing shaft 222 is located at the upper end of the honing machine shell 22; and an inclination driving mechanism 28 is arranged between the honing machine shell 22 and the honing head support 21 to drive the honing machine shell 22 to rotate around the axis of the swing shaft 222. In this way, the honing machine shell is rotated around the swing shaft through the inclination driving mechanism, so that the honing barrel coaxially arranged in the support cavity of the honing machine shell is also rotated together, so that different working postures can be adapted.

[0037] Specifically, as shown in Figure 3 and Figure 5As shown, the tilt drive mechanism 28 includes an arc-shaped rack 281 mounted on the honing machine housing 22, the arc-shaped rack 281 being coaxially arranged with the swing shaft 222; a tilt drive motor 282 is mounted on the honing head bracket 21, and the output end of the tilt drive motor 282 is connected to a tilt drive gear 283 meshing with the arc-shaped rack 281. Thus, the tilt drive motor drives the tilt drive gear to rotate, causing the arc-shaped rack to move around the axis of the swing shaft, thereby causing the entire honing machine housing to rotate around the axis of the swing shaft.

[0038] In this embodiment, the inner cavity of the honing cylinder 23 has a grinding wheel groove arranged in a ring along the circumference. The grinding wheel groove is located at the top of the honing wheel 23 and extends upward. The diameter of the grinding wheel groove matches the outer diameter of the honing wheel 24, and its width is smaller than the width of the honing wheel 24. A grinding wheel pressure ring 29 is detachably installed on the top of the honing wheel 23. The honing wheel 24 is disposed in the grinding wheel groove, and the grinding wheel pressure ring 29 presses against the honing wheel 24. An annular oil receiving plate 291 is installed in the support cavity 221. The inner side of the oil receiving plate 291 has a first oil-blocking ring 292 extending upward, and the first oil-blocking ring 292 is disposed close to the honing cylinder 23. The outer side of the grinding wheel pressure ring 29 has a downwardly extending second oil baffle ring 293, and the upper end of the first oil baffle ring 292 is located between the honing cylinder 23 and the second oil baffle ring 293. The honing shaft 25 has a through-hole for unloading in the middle.

[0039] To enable the honing shaft 25 to rotate more stably, a plurality of support bearings 251 are provided between the honing shaft 25 and the support hole; a rotary encoder is provided between the honing machine housing 22 and the honing cylinder 23 or the honing shaft 25.

[0040] like Figures 6 to 8 As shown, the gear clamping mechanism 5 includes a honing spindle 51 vertically arranged on the Z-axis support plate 4, with a headstock portion at the lower end of the honing spindle 51; a tailstock pad 52 is arranged side by side on one side of the honing spindle 51, with the lower end of the tailstock pad 52 extending downward and suspended below the Z-axis support plate 4; a tailstock support plate 53 is mounted on the tailstock pad 52 via a vertically arranged tailstock feed mechanism, with a tailstock portion coaxially arranged with the headstock portion on the side of the lower end of the tailstock support plate 53 facing the honing spindle 51, and a gear clamping space is formed between the headstock portion and the tailstock portion.

[0041] like Figure 8As shown, the tailstock feeding mechanism comprises a tailstock guide rail 54 vertically arranged on the tailstock base plate 52, and the tailstock support plate 53 is slidably mounted on the tailstock guide rail 54 through a sliding block; the tailstock base plate 52 and the tailstock support plate 53 are provided with a vertical screw rod 55 therebetween, the upper end of the screw rod 55 is drivingly connected with a tailstock driving motor 56, and a screw rod nut on the screw rod 55 is connected with the tailstock support plate 53. Specifically, the side of the tailstock base plate 52 facing the honing spindle 51 is provided with a vertical through guide groove, the tailstock support plate 53 is located in the guide groove, and the tailstock guide rail 54 is arranged between the two sides of the tailstock support plate 53 and the corresponding groove walls.

[0042] In implementation, the X-axis feeding mechanism comprises an X-axis bearing support guide rail 61 and an X-axis auxiliary guide rail 62 transversely mounted on the column 3, the X-axis bearing support guide rail 61 is located at the top of the column 3, the X-axis auxiliary guide rail 62 is located on the side of the column 3 facing the honing head assembly 2, the upper end of the X-axis support plate 4 is provided with a support block 63 protruding towards the column 3, the bottom of the support block 63 is mounted on the sliding block of the X-axis bearing support guide rail 61, the side of the X-axis support plate 4 facing the column 3 is mounted on the sliding block of the X-axis auxiliary guide rail 62, and the X-axis support plate 6 and the column 3 are provided with a linear driving mechanism transversely arranged therebetween. In this way, the protruding support block forms a "7" shaped structure, the X-axis bearing support guide rail is arranged between the bottom of the support block and the top of the column, so that the weight of the X-axis support plate and the components mounted thereon is mainly applied to the column through the support block, which can greatly improve the service life of the X-axis auxiliary guide rail and the X-axis bearing support guide rail, and improve the overall rigidity, which is conducive to ensuring the honing precision.

[0043] In this embodiment, the side of the X-axis support plate 6 away from the column 3 is vertically and extendingly provided with a relatively protruding guide block, the Z-axis feeding mechanism comprises Z-axis guide rails 41 vertically mounted on the two sides of the guide block, the two sides of the X-axis support plate 6 are both provided with support blocks 42 protruding towards the X-axis support plate 6, the opposite sides of the two support blocks 42 are respectively mounted on the sliding blocks of the corresponding Z-axis guide rails 41, and the X-axis support plate 4 and the Z-axis support plate 6 are provided with a linear driving mechanism vertically arranged therebetween. In this way, the two support blocks of the Z-axis support plate form a "[" shape, on the one hand, the two Z-axis guide rails can be wrapped inside, so that the guide rails are in a relatively closed space, which is conducive to improving the working environment of the guide rails; on the other hand, the force of the Z-axis support plate in the front-rear direction is limited and supported by the width direction of the guide rails and the sliding blocks, and the force of the Z-axis support plate in the left-right direction is limited and supported by the support blocks and the guide blocks, so that the Z-axis support plate can be reliably vertically moved. The linear driving mechanism is a screw rod nut mechanism (not shown in the figure), and a driving motor (not shown in the figure) is connected to the screw rod nut mechanism.

[0044] In implementation, the X-axis supporting plate 6 is provided with a vertical balance cylinder 7 on one side through a supporting base, the Z-axis supporting plate 4 is provided with a pushing base vertically opposite to the supporting base, and the telescopic rod of the balance cylinder is connected to the pushing base. In this way, the balance cylinder balances and supports the weight of the Z-axis supporting plate and its accessories, so that the Z-axis will not produce additional errors due to load changes when moving, thereby improving the positioning accuracy of the Z-axis. At the same time, the Z-axis feeding mechanism only needs to provide the power required for feeding, without the need to overcome the weight of the parts, thereby reducing the burden of the Z-axis feeding mechanism.

[0045] The above merely describes the preferred embodiments of the present application, and is not intended to limit the present application. Any modification, equivalent replacement and improvement within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An internal gear generator characterized by, The bed body (1) and the honing head assembly (2) arranged in the middle of the bed body (1), the back side of the bed body (1) has a vertically arranged column (3), the Z-axis supporting plate (4) is installed on the column (3) by the vertically arranged Z-axis feeding mechanism, the Z-axis supporting plate (4) has the gear clamping mechanism (5) arranged vertically, the clamping part of the gear clamping mechanism (5) extends downward and suspends below the Z-axis supporting plate (4); the honing head assembly (2) comprises a honing machine shell (22), a circular support cavity (221) is vertically arranged in the honing machine shell (22), the bottom of the support cavity (221) has a coaxially arranged support hole; the support cavity (221) has a coaxially arranged honing barrel (23), the honing barrel (23) has a coaxially arranged honing wheel (24) arranged oppositely and protrudingly, the honing wheel (24) is located at the upper end of the honing barrel (23); the lower end of the honing barrel (23) has a coaxially arranged honing shaft (25), the honing shaft (25) is rotatably installed in the support hole through the support bearing (251); the honing barrel (23) or the honing shaft (25) is connected with the rotary driving mechanism (27); the maximum circumscribed circle diameter of the clamping part of the gear clamping mechanism (5) is smaller than the minimum inner diameter of the honing wheel (24), and can extend into the honing barrel (23).

2. The internal gear honing machine of claim 1 wherein, The gear clamping mechanism (5) comprises a honing spindle (51) vertically arranged downward on the Z-axis supporting plate (4), the lower end of the honing spindle (51) has a head frame part; a tail frame backing plate (52) is arranged side by side on one side of the honing spindle (51), the lower end of the tail frame backing plate (52) extends downward and suspends below the Z-axis supporting plate (4); the tail frame backing plate (52) is installed with a tail frame supporting plate (53) by the vertically arranged tail frame feeding mechanism, the lower end of the tail frame supporting plate (53) has a tail frame part coaxially arranged with the head frame part on one side of the honing spindle (51), and the gear clamping space is formed between the head frame part and the tail frame part.

3. The internal gear honing machine of claim 2 wherein, The tail frame feeding mechanism comprises a tail frame guide rail (54) vertically arranged on the tail frame backing plate (52), the tail frame supporting plate (53) is slidably installed on the tail frame guide rail (54) through a sliding block; the tail frame backing plate (52) and the tail frame supporting plate (53) are connected through a vertically arranged screw rod (55), the upper end of the screw rod (55) is drivingly connected with a tail frame driving motor (56), and the screw rod nut on the screw rod (55) is connected with the tail frame supporting plate (53).

4. The internal gear honing machine of claim 1 wherein, The column (3) is provided with an X-axis supporting plate (6), the X-axis supporting plate (6) is transversely movably installed on the column (3) through the transversely arranged X-axis feeding mechanism, and can move transversely above the honing head assembly (2); the Z-axis supporting plate (4) is installed on the X-axis supporting plate (6) by the vertically arranged Z-axis feeding mechanism.

5. The internal gear honing machine of claim 4 wherein, One side of the X-axis supporting plate (6) is provided with a vertical balance cylinder through a supporting base, the Z-axis supporting plate (4) is provided with a pushing base vertically opposite to the supporting base, and the telescopic rod of the balance cylinder is connected to the pushing base.

6. The internal gear honing machine of claim 4 wherein, The X-axis feeding mechanism comprises an X-axis guide rail horizontally installed on the column (3), the X-axis supporting plate (6) is slidably installed on the X-axis guide rail through a sliding block, and the X-axis supporting plate (6) and the column (3) are provided with an X-axis linear driving mechanism horizontally arranged therebetween; the Z-axis feeding mechanism comprises a Z-axis guide rail (41) vertically installed on the X-axis supporting plate (6), the Z-axis supporting plate (4) is slidably installed on the Z-axis guide rail (41) through a sliding block, and the Z-axis supporting plate (4) and the X-axis supporting plate (6) are provided with a Z-axis linear driving mechanism vertically arranged therebetween.

7. The internal gear honing machine of claim 6 wherein, The X-axis linear driving mechanism and the Z-axis linear driving mechanism are screw nut mechanisms, and driving motors are connected to the screw nut mechanisms.

8. The internal gear honing machine according to any one of claims 1 to 7, wherein The rotating driving mechanism (27) comprises a stator assembly (271) coaxially embedded in the supporting cavity (221), and the outer wall of the honing cylinder (23) is embedded with a permanent magnet (272) matched with the stator assembly (271).

9. The internal gear honing machine according to any one of claims 1 to 7, wherein The honing head assembly (2) comprises a honing head support (21) arranged on the column (1), and the two sides of the honing machine shell (22) are rotatably installed on the honing head support (21) through coaxially arranged swing shafts (222), and the swing shafts (222) are located at the upper ends of the honing machine shell (22); the honing machine shell (22) and the honing head support (21) are provided with a tilt angle driving mechanism (28) for driving the honing machine shell (22) to rotate around the axis of the swing shaft (222).

10. The internal gear honing machine of claim 9 wherein, The tilt angle driving mechanism (28) comprises an arc-shaped rack (281) arranged on the honing machine shell (22), and the arc-shaped rack (281) is coaxially arranged with the swing shaft (222); the honing head support (21) is provided with a tilt angle driving motor (282), and the output end of the tilt angle driving motor (282) is drivingly connected with a tilt angle driving gear (283) meshingly arranged with the arc-shaped rack (281).