Double-station vertical gear honing machine

Abstract

The double-station vertical gear honing machine 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, and the stand column extends in the length direction of the machine body; a honing head assembly is arranged on the stand column, the two sides of the honing head assembly are each provided with a honing feeding assembly, each honing feeding assembly comprises a Z-axis supporting plate and an X-axis supporting plate, and the X-axis supporting plates are installed on the stand column in a transverse moving mode through a transversely-arranged X-axis feeding mechanism and can move to the position above the honing head assembly; the Z-axis supporting plate is installed on the X-axis supporting plate in a lifting mode through a vertically-arranged Z-axis feeding mechanism. The Z-axis supporting plate is provided with a gear jacking and clamping mechanism arranged in the vertical direction, and a clamping part of the gear jacking and clamping mechanism extends downwards and is suspended below the Z-axis supporting plate. The device has the advantages of being reasonable in structural design, high in machining efficiency, capable of meeting the requirement for machining precision, capable of reducing cost and the like.

Description

Technical Field

[0001] The invention relates to the technical field of gear processing and manufacturing, and in particular to a double-station vertical gear honing machine. Background Art

[0002] High-precision hardened gears are essential mechanical transmission components in the fields of automobiles, wind power generation, ships, machine tools, aerospace, high-speed rail, etc. The main purpose of the honing finishing process of hardened precision gears is to achieve the maximum load-bearing capacity and minimum transmission noise of the gears. The high-precision hardened gear honing finishing process is an effective manufacturing technology to achieve the maximum load-bearing capacity and minimum transmission noise of high-quality gears. Traditional processing technologies such as hobbing, gear shaping, gear shaving, and heat treatment can no longer meet the requirements of transmission accuracy, transmission noise, and reduced manufacturing costs of gears in high-end equipment. The corresponding hardened gear honing finishing method has become the leading direction of gear honing manufacturing technology research. The honing process can achieve higher dimensional accuracy, shape accuracy, and lower tooth surface roughness, and has high efficiency, low cost, and no burns on the tooth surface, so it is widely used in the processing of hardened gears after heat treatment.

[0003] In order to allow the gear and the honing wheel to mesh with each other, the existing internal meshing honing machine usually sets a top clamping mechanism at both ends of the axial direction of the honing wheel to clamp the gear. In this way, the honing head as a whole is a ring-shaped structure with a through middle. In order for the honing wheel to rotate inside the honing head, a support bearing needs to be set between the honing wheel and the honing head. The size of the support bearing is usually larger than the size of the honing wheel. In order to ensure the accuracy of the honing process, the accuracy requirements for the support bearing are also high. That is, the support bearing of the existing honing machine needs to meet the requirements of large size and high precision at the same time. Under the same accuracy requirements, the larger the size of the bearing, the higher its cost will be, making the overall cost and maintenance cost of the honing machine higher. Summary of the invention

[0004] In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is: how to provide a double-station vertical gear honing machine with reasonable structural design, high processing efficiency, which can not only meet the processing accuracy requirements but also reduce costs.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions: A double-station vertical gear honing machine comprises a bed and a honing head assembly arranged in the middle of the bed, the back side of the bed is provided with a vertically arranged column, and the column is extended along the length direction of the bed; a group of honing feed assemblies are respectively arranged on both sides of the honing head assembly, and the honing feed assembly comprises a Z-axis support plate and an X-axis support plate, and the X-axis support plate can be laterally movably installed on the column through a laterally arranged X-axis feed mechanism, and can be moved to the top of the honing head assembly; the Z-axis support plate can be lifted and lowered on the X-axis support plate through a vertically arranged Z-axis feed mechanism; the Z-axis support plate is provided with a gear top clamping mechanism arranged vertically, and the clamping part of the gear top clamping mechanism is downward Extending and suspended below the Z-axis support plate; the honing head assembly includes a honing housing, a circular supporting cavity is vertically arranged in the honing housing, and the bottom of the supporting cavity has a coaxially arranged supporting hole; a coaxially arranged honing cylinder is arranged in the supporting cavity, and a relatively protruding honing wheel is coaxially installed in the honing cylinder, and the honing wheel is located at the upper end of the honing cylinder; the lower end of the honing cylinder has a coaxially arranged honing shaft, and the honing shaft is rotatably installed in the supporting hole through a supporting bearing; a rotating drive mechanism is connected to the honing cylinder or the honing shaft; 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 can extend into the honing cylinder.

[0006] With the above structure, the gear is clamped by the clamping part suspended downward by the gear top clamping mechanism. 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 cylinder together with the clamping part through the Z-axis feeding mechanism, and cooperate with the honing wheel for honing. This structure does not need to set the gear top clamping mechanism on both sides of the honing wheel, so there is no need to set the honing head as a through annular structure. Only a relatively deep honing cylinder needs to be set to accommodate the extension length of the clamping part. At the same time, the honing cylinder is coaxially set in the vertical support cavity, and the honing shaft at the lower end is coaxially installed 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 relatively small. Compared with the support bearing of the honing head of the existing structure, under the same precision requirement, the smaller support bearing has a lower cost, thereby reducing equipment cost and maintenance cost. In addition, the honing cylinder is set vertically through the honing axis to avoid the bending moment caused by the increase in the axial size of the honing cylinder, which is more conducive to ensuring the honing accuracy. At the same time, the two sets of honing feed components can work alternately. When one set is honing, the other set can load and unload materials, which can greatly improve the processing efficiency.

[0007] Furthermore, the gear top clamping mechanism includes a honing spindle vertically downwardly arranged on the Z-axis support plate, and the lower end of the honing spindle has a headstock portion; a tailstock pad is arranged side by side on one side of the honing spindle, and the lower end of the tailstock pad extends downward and is suspended below the Z-axis support plate; the tailstock pad is liftably mounted with a tailstock support plate through a vertically arranged tailstock feed mechanism, and the lower end of the tailstock support plate has a tailstock portion coaxially arranged with the headstock portion on the side facing the honing spindle, and a gear clamping space is formed between the headstock portion and the tailstock portion.

[0008] Furthermore, the tailstock feeding mechanism includes a tailstock guide rail vertically arranged on the tailstock pad, and the tailstock support plate is slidably mounted on the tailstock guide rail through a slider; a vertically arranged screw rod is provided between the tailstock pad and the tailstock support plate, the upper end of the screw rod is transmission-connected to a tailstock drive motor, and the screw rod nut on the screw rod is connected to the tailstock support plate.

[0009] Furthermore, the tailstock pad has a guide groove vertically penetrating on one side facing the honing spindle, the tailstock support plate is located in the guide groove, and the tailstock guide rails are arranged between the two sides and the corresponding groove walls.

[0010] Furthermore, the X-axis feed mechanism includes an X-bearing support guide rail and an X-axis auxiliary guide rail transversely installed on the column, the X-bearing support guide rail is located at the top of the column; the X-axis auxiliary guide rail is located on the side of the column facing the honing head assembly; the upper end of the X-axis support plate has a supporting block protruding toward the column, and the bottom of the supporting block is installed on the slider of the X-bearing support guide rail; the side of the X-axis support plate facing the column is installed on the slider of the X-axis auxiliary guide rail; a transversely arranged linear drive mechanism is provided between the X-axis support plate and the column.

[0011] In this way, the protruding supporting block forms a "7" shaped structure, and an X-bearing support guide rail is arranged between the bottom of the supporting block and the top of the column, so that the weight of the X-axis support plate and the components mounted thereon are mainly applied to the column through the supporting block, which can greatly improve the service life of the X-axis auxiliary guide rail and the X-bearing support guide rail, and improve the overall rigidity, which is beneficial to ensure the honing accuracy.

[0012] Furthermore, a relatively protruding guide block is vertically extended on one side of the X-axis slide away from the column, and the Z-axis feed mechanism includes Z-axis guide rails vertically installed on both sides of the guide block, and both sides of the Z-axis slide in the horizontal direction have support blocks protruding toward the X-axis slide, and the opposite sides of the support blocks on both sides are respectively installed on the corresponding sliders of the Z-axis guide rails, and a vertically arranged linear drive mechanism is provided between the Z-axis support plate and the X-axis support plate.

[0013] In this way, the two support blocks of the Z-axis slide form a "[" shape, which can, on the one hand, wrap the two Z-axis guide rails 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 slide in the front and rear directions can be supported by the limit in the width direction of the guide rails and the slider, while the force of the Z-axis slide in the left and right directions can be supported by the limit between the support block and the guide block, thereby ensuring that the Z-axis support plate can move vertically reliably.

[0014] Furthermore, the linear drive mechanism is a screw-nut mechanism, and a drive motor is connected to the screw-nut mechanism.

[0015] Furthermore, a vertically arranged balancing cylinder is installed on one side of the X-axis support plate through a support seat, and the Z-axis support plate has a pushing seat arranged vertically opposite to the support seat, and the telescopic rod of the balancing cylinder is connected to the pushing seat.

[0016] In this way, the weight of the Z-axis pallet and its accessories is balanced and supported by the balancing cylinder, and 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 feed mechanism only needs to provide the power required for feeding, without overcoming the deadweight of the components, thereby reducing the burden on the Z-axis feed mechanism.

[0017] Furthermore, the honing head assembly includes a honing head bracket arranged on the bed, and both sides of the honing machine housing are rotatably mounted on the honing head bracket through a coaxially arranged swing shaft, and the swing shaft is located at the upper end of the honing machine housing; an inclination drive mechanism is arranged between the honing machine housing and the honing head bracket for driving the honing machine housing to rotate around the axis of the swing shaft.

[0018] In this way, the honing housing is rotated around the swing shaft through the inclination drive mechanism, so that the honing cylinder coaxially arranged in the supporting cavity of the honing housing also rotates together, thereby being able to adapt to different working postures.

[0019] Furthermore, the inclination drive mechanism includes an arc-shaped rack arranged on the honing machine housing, and the arc-shaped rack is coaxially arranged with the swing shaft; an inclination drive motor is installed on the honing head bracket, and the output end of the inclination drive motor is transmission-connected to the inclination drive gear meshing with the arc-shaped rack.

[0020] In this way, the inclination driving motor drives the inclination driving gear to rotate, and drives the arc-shaped rack to move around the axis of the swing shaft, so that the honing housing as a whole rotates around the axis of the swing shaft.

[0021] In summary, the present invention has the advantages of reasonable structural design, high processing efficiency, and can meet the processing accuracy requirements while reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of this embodiment.

[0023] Figure 2 It is a structural schematic diagram of the honing head assembly.

[0024] Figure 3 It is a schematic diagram of the structure of the honing machine housing.

[0025] Figure 4 for Figure 2 Schematic diagram of the cross-sectional structure.

[0026] Figure 5 for Figure 2 Axonometric section diagram of .

[0027] Figure 6 and Figure 7 It is a schematic diagram of the structure of the honing feed assembly.

[0028] Figure 8 It is a structural schematic diagram of the gear top clamping mechanism. DETAILED DESCRIPTION

[0029] The present invention is further described in detail below in conjunction with embodiments.

[0030] When implemented specifically: a double-station vertical gear honing machine, such as Figure 1 As shown, it includes a bed 1 and a honing head assembly 2 arranged in the middle of the bed 1, the back side of the bed 1 is provided with a vertically arranged column 3, and the column 3 is extended along the length direction of the bed 1; a group of honing feed assemblies are arranged on both sides of the honing head assembly 2, and the honing feed assembly includes a Z-axis support plate 4 and an X-axis support plate 6, and the X-axis support plate 6 can be laterally movably installed on the column 3 through a laterally arranged X-axis feed mechanism, and can be moved to the top of the honing head assembly 2; the Z-axis support plate 4 can be lifted and lowered on the X-axis support plate 6 through a vertically arranged Z-axis feed mechanism; the Z-axis support plate 4 is provided with a vertically arranged gear top clamping mechanism 5, and the clamping part of the gear top clamping mechanism 5 extends downward and is suspended below the Z-axis support plate 4.

[0031] like Figure 2 to Figure 5As shown, the honing head assembly 2 includes a honing head bracket 21 and a honing machine housing 22 vertically arranged on the honing head bracket 21, wherein a circular support cavity 221 is vertically arranged in the honing machine housing 22, and the bottom of the support cavity 221 has a coaxially arranged support hole; a coaxially arranged honing cylinder 23 is arranged in the support cavity 221, and a relatively protruding honing wheel 24 is coaxially installed in the honing cylinder 23, and the honing wheel 24 is coaxially installed in the honing cylinder 23. 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 coaxially arranged honing shaft 25, and the honing shaft 25 is rotatably mounted in the supporting hole through a supporting bearing 251; a rotating drive mechanism 27 is connected to the honing cylinder 23 or the honing shaft 25; the maximum circumscribed circle diameter of the clamping part of the gear top clamping mechanism 5 is smaller than the minimum inner diameter of the honing wheel 24, and can extend into the honing cylinder 23.

[0032] With the above structure, the gear is clamped by the clamping part suspended downward by the gear top clamping mechanism. 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 cylinder together with the clamping part through the Z-axis feeding mechanism, and cooperate with the honing wheel for honing. This structure does not need to set the gear top clamping mechanism on both sides of the honing wheel, so there is no need to set the honing head as a through annular structure. Only a relatively deep honing cylinder needs to be set to accommodate the extension length of the clamping part. At the same time, the honing cylinder is coaxially set in the vertical support cavity, and the honing shaft at the lower end is coaxially installed 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 relatively small. Compared with the support bearing of the honing head of the existing structure, under the same precision requirement, the smaller support bearing has a lower cost, thereby reducing equipment cost and maintenance cost. In addition, the honing cylinder is set vertically through the honing axis to avoid the bending moment caused by the increase in the axial size of the honing cylinder, which is more conducive to ensuring the honing accuracy. At the same time, the two sets of honing feed components can work alternately. When one set is honing, the other set can load and unload materials, which can greatly improve the processing efficiency.

[0033] During implementation, the rotary drive mechanism 27 includes a stator assembly 271 coaxially embedded in the support cavity 221 , and a permanent magnet 272 matching the stator assembly 271 is embedded on the outer wall of the honing cylinder 23 .

[0034] In this way, on the one hand, the entire honing cylinder can be used as the rotor part of the motor to drive the honing cylinder to rotate. On the other hand, the magnetic force between the stator assembly and the permanent magnet can be used to keep the honing cylinder coaxially supported in the support cavity, so that the coaxial accuracy of the honing cylinder during rotation is higher.

[0035] like Figure 4 and Figure 5As shown, the two sides of the honing housing 22 are rotatably mounted on the honing head bracket 21 through a coaxially arranged swing shaft 222, and the swing shaft 222 is located at the upper end of the honing housing 22; an inclination driving mechanism 28 for driving the honing housing 22 to rotate around the axis of the swing shaft 222 is arranged between the honing housing 22 and the honing head bracket 21. In this way, the honing housing is rotated around the swing shaft by the inclination driving mechanism, so that the honing cylinder coaxially arranged in the supporting cavity of the honing housing also rotates together, so as to adapt to different working postures.

[0036] Specifically, Figure 3 and Figure 5 As shown, the inclination drive mechanism 28 includes an arc-shaped rack 281 disposed on the honing housing 22, and the arc-shaped rack 281 is coaxially disposed with the swing shaft 222; an inclination drive motor 282 is mounted on the honing head bracket 21, and the output end of the inclination drive motor 282 is drivingly connected to an inclination drive gear 283 meshing with the arc-shaped rack 281. In this way, the inclination drive motor drives the inclination drive gear to rotate, drives the arc-shaped rack to move around the axis of the swing shaft, and thus allows the honing housing as a whole to rotate around the axis of the swing shaft.

[0037] In this embodiment, the inner cavity of the honing cylinder 23 has a grinding wheel groove arranged in an annular shape along the circumferential direction, the grinding wheel groove is located at the top of the honing wheel 23 and is arranged to penetrate upward; the diameter of the grinding wheel groove matches the outer diameter of the honing wheel 24, and the width is smaller than the width of the honing wheel 24; a grinding wheel pressing ring 29 is detachably installed on the top of the honing wheel 23, the honing wheel 24 is arranged in the grinding wheel groove, and the grinding wheel pressing ring 29 is pressed on the honing wheel 24. An annular oil receiving pan 291 is installed in the support cavity 221, and the inner side of the oil receiving pan 291 has a first oil retaining ring 292 extending upward, and the first oil retaining ring 292 and the honing cylinder 23 are arranged close to each other. The outer side of the grinding wheel pressing ring 29 has a second oil slinger 293 extending downward, and the upper end of the first oil slinger 292 is located between the honing cylinder 23 and the second oil slinger 293. The middle part of the honing shaft 25 has a discharge hole extending therethrough.

[0038] In order to allow 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; and a rotary encoder is provided between the honing housing 22 and the honing cylinder 23 or the honing shaft 25 .

[0039] like Figure 6 to Figure 8As shown, the gear top clamping mechanism 5 includes a honing spindle 51 vertically downwardly arranged on the Z-axis support plate 4, and the lower end of the honing spindle 51 has a headstock portion; a tailstock pad 52 is arranged side by side on one side of the honing spindle 51, and the lower end of the tailstock pad 52 extends downward and is suspended below the Z-axis support plate 4; the tailstock pad 52 is liftably mounted with a tailstock support plate 53 through a vertically arranged tailstock feeding mechanism, and the lower end of the tailstock support plate 53 has a tailstock portion coaxially arranged with the headstock portion on the side facing the honing spindle 51, and a gear clamping space is formed between the headstock portion and the tailstock portion.

[0040] like Figure 8 As shown, the tailstock feeding mechanism includes a tailstock guide rail 54 vertically arranged on the tailstock pad 52, and the tailstock support plate 53 is slidably mounted on the tailstock guide rail 54 through a slider; a vertically arranged screw rod 55 is provided between the tailstock pad 52 and the tailstock support plate 53, and a tailstock driving motor 56 is transmission-connected to the upper end of the screw rod 55, and a screw rod nut on the screw rod 55 is connected to the tailstock support plate 53. Specifically, the tailstock pad 52 has a vertically penetrating guide groove on one side facing the honing spindle 51, and the tailstock support plate 53 is located in the guide groove, and the tailstock guide rail 54 is provided between the two sides and the corresponding groove walls.

[0041] During implementation, the X-axis feed mechanism includes an X-bearing support guide rail 61 and an X-axis auxiliary guide rail 62 installed laterally on the column 3, the X-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 has a supporting block 63 protruding toward the column 3, and the bottom of the supporting block 63 is installed on the slider of the X-bearing support guide rail 61; the side of the X-axis support plate 4 facing the column 3 is installed on the slider of the X-axis auxiliary guide rail 62; a laterally arranged linear drive mechanism is provided between the X-axis support plate 6 and the column 3. In this way, the protruding supporting block forms a "7" shaped structure, and an X-bearing support guide rail is arranged between the bottom of the supporting block and the top of the column, so that the weight of the X-axis support plate and the components mounted thereon are mainly applied to the column through the supporting block, which can greatly improve the service life of the X-axis auxiliary guide rail and the X-bearing support guide rail, and improve the overall rigidity, which is beneficial to ensure the honing accuracy.

[0042] In this embodiment, the X-axis carriage 6 is provided with a relatively protruding guide block extending vertically on one side away from the column 3, the Z-axis feeding mechanism includes Z-axis guide rails 41 vertically installed on both sides of the guide block, and both sides of the Z-axis carriage 4 in the horizontal direction have support blocks 42 protruding toward the X-axis carriage 6, and the opposite sides of the support blocks 42 on both sides are respectively installed on the sliders of the corresponding Z-axis guide rails 41, and a vertically arranged linear driving mechanism is provided between the Z-axis support plate 4 and the X-axis support plate 6. In this way, the two support blocks of the Z-axis carriage form a "[" shape, which can wrap the two Z-axis guide rails inside on the one hand, 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 carriage in the front-to-back direction can be supported by the limit in the width direction of the guide rail and the slider, and the force of the Z-axis carriage in the left-right direction can be supported by the limit between the support block and the guide block, thereby ensuring that the Z-axis carriage can reliably move vertically. The linear drive mechanism is a screw-nut mechanism (not shown in the figure), and a drive motor (not shown in the figure) is connected to the screw-nut mechanism.

[0043] During implementation, a vertically arranged balancing cylinder 7 is installed on one side of the X-axis support plate 6 through a support seat, and the Z-axis support plate 4 has a push seat arranged vertically opposite to the support seat, and the telescopic rod of the balancing cylinder is connected to the push seat. In this way, the weight of the Z-axis support plate and its accessories is balanced and supported by the balancing cylinder, and the Z-axis will not generate 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 overcoming the deadweight of the components, thereby reducing the burden on the Z-axis feeding mechanism.

[0044] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A double-station vertical gear honing machine, characterized in that: The invention comprises a bed (1) and a honing head assembly (2) arranged in the middle of the bed (1), wherein the back side of the bed (1) is provided with a vertically arranged column (3), and the column (3) is extended along the length direction of the bed (1); a group of honing feed assemblies are respectively arranged on both sides of the honing head assembly (2), and the honing feed assemblies comprise a Z-axis support plate (4) and an X-axis support plate (6), wherein the X-axis support plate (6) is laterally movably mounted on the column (3) through a laterally arranged X-axis feed mechanism, and can be moved to the top of the honing head assembly (2); the Z-axis support plate (4) is movably mounted on the X-axis support plate (6) through a vertically arranged Z-axis feed mechanism; the Z-axis support plate (4) is provided with a gear top clamping mechanism (5) arranged vertically, and the clamping portion of the gear top clamping mechanism (5) extends downward and is suspended below the Z-axis support plate (4); the honing head assembly (2) comprises a plurality of honing feed assemblies, wherein the plurality of honing feed assemblies are provided on the plurality of honing feed assemblies; The head assembly (2) comprises a honing housing (22), wherein a circular support cavity (221) is vertically arranged in the honing housing (22), and the bottom of the support cavity (221) has a coaxially arranged support hole; a coaxially arranged honing cylinder (23) is arranged in the support cavity (221), and a relatively protruding honing wheel (24) is coaxially installed in the honing cylinder (23), and the honing wheel (24) is located at the upper end of the honing cylinder (23). The lower end of the honing cylinder (23) has a coaxially arranged honing shaft (25), and the honing shaft (25) is rotatably mounted in the support hole via a support bearing (251); a rotary drive mechanism (27) is connected to the honing cylinder (23) or the honing shaft (25); the maximum circumscribed circle diameter of the clamping portion of the gear top clamping mechanism (5) is smaller than the minimum inner diameter of the honing wheel (24), and can extend into the honing cylinder (23).

2. The double-station vertical gear honing machine according to claim 1, characterized in that: The gear top clamping mechanism (5) comprises a honing spindle (51) vertically arranged downward on the Z-axis support plate (4), the lower end of the honing spindle (51) having a head frame portion; a tail frame pad (52) is arranged side by side on one side of the honing spindle (51), the lower end of the tail frame pad (52) extends downward and is suspended below the Z-axis support plate (4); the tail frame pad (52) is liftably mounted with a tail frame support plate (53) via a vertically arranged tail frame feeding mechanism, the lower end of the tail frame support plate (53) having a tail frame portion coaxially arranged with the head frame portion on a side facing the honing spindle (51), and a gear clamping space is formed between the head frame portion and the tail frame portion.

3. The double-station vertical gear honing machine according to claim 2, characterized in that: The tailstock feeding mechanism comprises a tailstock guide rail (54) vertically arranged on the tailstock pad (52), and the tailstock support plate (53) is slidably mounted on the tailstock guide rail (54) via a slider; a lead screw (55) vertically arranged between the tailstock pad (52) and the tailstock support plate (53), the upper end of the lead screw (55) is transmission-connected to a tailstock drive motor (56), and a lead screw nut on the lead screw (55) is connected to the tailstock support plate (53).

4. The double-station vertical gear honing machine according to claim 3, characterized in that: The tailstock pad (52) has a guide groove that is vertically penetrated on one side facing the honing spindle (51); the tailstock support plate (53) is located in the guide groove, and the tailstock guide rails (54) are provided between the two sides and the corresponding groove walls.

5. The double-station vertical gear honing machine according to claim 1, characterized in that: The X-axis feeding mechanism comprises an X-bearing support rail (61) and an X-axis auxiliary guide rail (62) which are transversely mounted on the column (3), wherein the X-bearing support 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) has a supporting block (63) protruding toward the column (3), and the bottom of the supporting block (63) is mounted on a slider of the X-bearing support rail (61); the side of the X-axis support plate (4) facing the column (3) is mounted on the slider of the X-axis auxiliary guide rail (62); and a transversely arranged linear driving mechanism is provided between the X-axis support plate (6) and the column (3).

6. The double-station vertical gear honing machine according to claim 1, characterized in that: A relatively protruding guide block is vertically extended on one side of the X-axis slide (6) away from the column (3); the Z-axis feeding mechanism includes Z-axis guide rails (41) vertically installed on both sides of the guide block; both sides of the Z-axis slide (4) in the horizontal direction have support blocks (42) protruding toward the X-axis slide (6); the opposite sides of the support blocks (42) on both sides are respectively installed on the corresponding sliders of the Z-axis guide rails (41); and a vertically arranged linear driving mechanism is provided between the Z-axis support plate (4) and the X-axis support plate (6).

7. The double-station vertical gear honing machine according to claim 5 or 6, characterized in that: The linear drive mechanism is a screw-nut mechanism, and a drive motor is connected to the screw-nut mechanism.

8. The double-station vertical gear honing machine according to claim 1, characterized in that: A vertically arranged balancing cylinder is installed on one side of the X-axis support plate (6) via a support seat, and a pushing seat is provided on the Z-axis support plate (4) and is vertically arranged opposite to the support seat, and a telescopic rod of the balancing cylinder is connected to the pushing seat.

9. The double-station vertical gear honing machine according to claim 1, characterized in that: The honing head assembly (2) comprises a honing head bracket (21) arranged on the bed (1); two sides of the honing machine housing (22) are rotatably mounted on the honing head bracket (21) via coaxially arranged swing shafts (222), the swing shafts (222) being located at the upper end of the honing machine housing (22); and an inclination drive mechanism (28) for driving the honing machine housing (22) to rotate around the axis of the swing shaft (222) is arranged between the honing machine housing (22) and the honing head bracket (21).

10. The double-station vertical gear honing machine according to claim 1, characterized in that: The inclination drive mechanism (28) comprises an arc-shaped rack (281) arranged on the honing machine housing (22), the arc-shaped rack (281) being coaxially arranged with the swing shaft (222); an inclination drive motor (282) is mounted on the honing head bracket (21), the output end of the inclination drive motor (282) being drivingly connected to an inclination drive gear (283) meshing with the arc-shaped rack (281).

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