CN120347247A

CN120347247A - Quick-positioning drilling machine for gears

Info

Publication number: CN120347247A
Application number: CN202510831066.3A
Authority: CN
Inventors: 程凌; 周芸析
Original assignee: Changzhou Enhui Metal New Material Co ltd
Current assignee: Changzhou Enhui Metal New Material Co ltd
Priority date: 2025-06-20
Filing date: 2025-06-20
Publication date: 2025-07-22

Abstract

The present invention discloses a fast positioning gear drilling machine, which belongs to the technical field of drilling machines. The present invention comprises a vertically arranged frame, a horizontal frame is fixedly installed at the lower end of the frame, and adjustment mechanisms are arranged on the frame and the horizontal frame; a movable frame is rotatably installed on the fixed seat, and a second motor is fixedly installed on the inner side of the fixed seat, and a movable frame is fixedly installed on the output end of the second motor, a positioning assembly for preliminary positioning of the gear is installed on the frame plate, locking assemblies for engaging the tooth groove are evenly installed on the movable frame, and a fine-tuning mechanism for driving the rotation fine-tuning of the gear to be processed is connected between the locking assembly and the movable frame. The fast positioning gear drilling machine can conveniently and quickly perform multi-directional positioning and locking of the gear, and can fine-tune the angle of the gear during the positioning process to ensure that the tooth groove of the gear can be accurately locked, and positioning efficiency is ensured while also ensuring positioning stability.

Description

Quick-positioning drilling machine for gears

Technical Field

The invention relates to the technical field of drilling machines, in particular to a drilling machine for a gear capable of being positioned quickly.

Background

The gear drilling process is an important link in the gear manufacturing process, and drilling holes on gears generally has multiple purposes, such as being used for installing shafts, key grooves and locating pins, or being used for reducing the weight of gears, increasing lubrication channels and the like, the existing gears are fixed by the locating mechanism structure of the drilling machine, and stable locating of the gears cannot be realized by a single clamping mechanism.

Prior art (publication No.: CN118321954a, chinese patent publication No. 2024-07-12) discloses a planetary gear vertical drilling device and a drilling process, which relates to the technical field of planetary gear vertical drilling processing devices, the planetary gear vertical drilling device comprises a vertical drilling device body, a motor base, a servo motor, a telescopic crank arm, a driving motor, a gear box, a drill rod mechanism, a feeding mechanism and the like, the drill rod mechanism comprises a grading drilling unit, an aperture adjusting unit and a drill rod replacing unit, drill rods with different parameters can be quickly replaced and adjusted, drilling requirements with different apertures are met, the feeding mechanism is used for clamping, moving and positioning the planetary gear, the hydraulic telescopic box and a clamping plate are adopted for accurately positioning and clamping the planetary gear, the drilling angle and range are adjusted through the telescopic crank arm, and the efficient and accurate drilling of the planetary gear is realized by combining the drill rod mechanism and the feeding mechanism, the working efficiency and the product quality are effectively improved, and meanwhile, the production cost and the operation difficulty are reduced;

Prior art (publication No.: CN119036111a, chinese patent publication No. 2024-11-29) discloses a gear drilling tool for a vertical machining center, comprising a mounting plate having a plurality of positioning holes thereon; the three mounting shafts are perpendicular to the mounting disc, clamping gears are detachably and fixedly connected to the mounting shafts, and a plurality of clamping gears enclose a placing cavity for placing gears to be processed; the device comprises a mounting disc, a driving unit, a gear drilling tool and a gear drilling tool, wherein the driving unit is used for driving the mounting shaft to synchronously move, is connected to the mounting disc, is connected with the mounting shaft and is used for driving the mounting shaft to approach or depart from a gear to be processed;

The existing drilling equipment for gears can realize positioning and clamping of the gears by adopting the meshing effect of the tooth blocks and the gears to be processed in the processing process, but the position of the gears needs to be adjusted in advance in the positioning process, so that the tooth blocks can be ensured to be smoothly clamped into tooth grooves of the gears to be processed, and the positioning convenience of the gears and the drilling processing efficiency of the equipment are greatly reduced by adjusting the positions of the gears, so that certain use defects exist.

Disclosure of Invention

The invention aims to provide a quick positioning drilling machine for gears, which aims to solve the problems that in the positioning process of the gear drilling machine for the current market, which is proposed by the background technology, the position intersection of gears needs to be adjusted, so that tooth blocks can be ensured to be smoothly clamped into tooth grooves of the gears to be processed, and the positioning convenience of the gears and the drilling processing efficiency of equipment are greatly reduced by adjusting the positions of the gears.

The drilling machine for the gear comprises a vertically arranged frame, wherein a transverse frame is horizontally and fixedly arranged at the lower end of the frame, adjusting mechanisms are arranged on the frame and the transverse frame, a first mounting plate and a second mounting plate are respectively arranged on the two adjusting mechanisms, meanwhile, a drilling machine and a fixed seat are respectively and fixedly arranged on the first mounting plate and the second mounting plate, a movable frame is rotatably arranged on the fixed seat, a second motor is fixedly arranged on the inner side of the fixed seat, a movable frame is fixedly arranged at the output end of the second motor, a rotary column is elastically rotatably arranged at the central position of the movable frame, a frame plate is fixedly arranged at the upper end of the rotary column, a positioning assembly for initially positioning the gear is arranged on the frame plate, a locking assembly for clamping into a tooth socket is uniformly arranged on the movable frame, and a fine-tuning mechanism for driving the gear to be processed to rotate is connected between the locking assembly and the movable frame.

Preferably, the adjusting mechanism comprises two first motors and guide rods which are respectively and fixedly arranged on the frame and the transverse frame, a screw rod is fixedly arranged at the output end of each first motor, the two screw rods are respectively and spirally connected with the first mounting plate and the second mounting plate, and meanwhile the first mounting plate and the second mounting plate are both arranged on the outer side of the guide rod in a sliding mode.

Preferably, the rack plate and the gear to be processed are coaxially arranged, the positioning assembly comprises a hydraulic cylinder fixedly mounted on the upper surface of the lower end of the movable rack, the upper end of the hydraulic cylinder is fixedly connected with a containing seat, the containing seat is sleeved on the outer side of the pushing piece, a buffer spring is fixedly connected between the containing seat and the pushing piece, and the pushing piece is sleeved on the outer side of the rotating column in a sliding mode.

Preferably, the slide groove is evenly formed in the frame plate, the positioning assembly further comprises a slide plate which is slidably arranged in the slide groove, the lower portion of the slide plate is transversely and fixedly provided with a first guide pillar, the first guide pillar is connected with the frame plate in a telescopic mode, a first reset spring is connected between the slide plate and the frame plate, the upper portion of the pushing piece is in a conical structure, and the pushing piece contacts with the lower end of the slide plate in the upward moving process and pushes the slide plate to slide along the slide groove.

Preferably, the top elastic rotation of slide installs the locating part, and the locating part is the arc structure setting to the slide removes the lower extreme that is close to the gear in-process locating part and contacts the gear inner circle and rotate, and the upper end of locating part pushes down simultaneously and laminates in the upper surface of gear.

Preferably, the locking component comprises a second guide pillar which is slidably mounted on the movable frame, one end of the second guide pillar, which is far away from the gear, is fixedly provided with a wear-resisting plate, the lower part of the wear-resisting plate is in an inclined structure, the outer side of the holding seat is rotationally provided with a roller, the holding seat drives the roller to roll on the outer side of the wear-resisting plate in the process of moving upwards, and a second reset spring is fixedly connected between the movable frame and the wear-resisting plate.

Preferably, one end of the second guide post, which is close to the gear, is fixedly provided with an adjusting seat, a sliding block is arranged in a groove body formed in the adjusting seat in a lifting and sliding manner, the outer side of the sliding block is fixedly connected with a positioning latch through a bolt, and meanwhile, the adjusting seat is moved to drive the positioning latch to be clamped into a tooth groove of the gear.

Preferably, the fine adjustment mechanism comprises a telescopic column vertically and fixedly arranged on the lower surface of the sliding block, the telescopic column penetrates through the lower end of the adjusting seat, the lower end of the telescopic column is in a spherical structure, and a third reset spring is connected between the sliding block and the adjusting seat;

The fine adjustment mechanism further comprises a third guide post fixedly mounted on the lower surface of the upper portion of the movable frame, a movable plate is arranged on the outer side lifting sleeve of the third guide post, a fourth reset spring is fixedly connected between the movable frame and the movable plate, the positioning latch is arranged in an inclined surface structure towards one side of the gear, the positioning latch is in contact with a tooth block of the gear and is subjected to ascending adjustment when being pressed, the movable plate is arranged in a U-shaped structure, the lower end of the telescopic column slides in a groove body on the movable plate and is subjected to ascending adjustment, and the movable plate is driven to synchronously ascend in the ascending process of the telescopic column.

Preferably, the outside fixedly connected with stay cord of fly leaf, and the one end fixed connection in the outside of frame plate that the fly leaf was kept away from to the stay cord slope sets up between frame plate and fly leaf, and the while fly leaf moves up the in-process and carries out elastic rotation through stay cord pulling frame plate and column spinner.

Compared with the prior art, the drilling machine for the gears with quick positioning has the advantages that the drilling machine for the gears with quick positioning can be used for conveniently and quickly performing multidirectional positioning and locking on the gears, fine adjustment of angles can be performed on the gears in the positioning process, accurate locking on tooth grooves of the gears is ensured, positioning efficiency is ensured, and meanwhile positioning stability is also ensured, and the drilling machine has the following specific contents;

1. Be provided with slide and locating part, along with the pneumatic cylinder promotes flourishing seat and reciprocates, flourishing seat can drive the impeller in step and reciprocate for the impeller upper end can support and promote the slide and carry out sliding adjustment, thereby make the locating part that slide upper end is connected carry out elastic rotation, and then realize the correction to the gear position, ensure that gear and frame plate remain coaxial, the simultaneous location of gear can be realized to synchronous compressing tightly of inner circle and upper surface of gear to the locating part.

2. The adjusting seat and the positioning latch are arranged, and the roller on the outer side of the adjusting seat can contact and push the wear-resisting plate along with the continuous upward movement of the containing seat, so that the wear-resisting plate drives the adjusting seat to carry out sliding adjustment, a plurality of positioning latches are moved and clamped into corresponding tooth grooves of the gear, and locking and positioning of the gear are realized.

3. Be provided with location latch, fly leaf and stay cord, when the tooth piece of location latch removal process contact gear, when the inclined plane of location latch received the conflict power, promote the location latch and carry out elasticity and shift up, the slider can drive the fly leaf through the telescopic column and carry out synchronous upward movement this moment, the fly leaf utilizes stay cord pulling frame plate and column spinner to carry out elastic rotation this moment, thereby realize the fine setting to gear angle, when the tooth's socket of gear is close to the location latch, the location latch can move down again and reset, and in the card goes into corresponding tooth's socket, thereby realize the locking to the gear, need not the manual work and put the position to carry out the preadjustment, further improved the location of gear, drilling efficiency.

Drawings

FIG. 1 is a schematic diagram of a front view structure of the present invention;

FIG. 2 is a schematic diagram of a front view of a movable frame according to the present invention;

FIG. 3 is a schematic top view of the movable frame of the present invention;

Fig. 4 is a schematic cross-sectional view of a movable frame and a frame plate according to the present invention;

FIG. 5 is an enlarged schematic view of the structure of FIG. 4A according to the present invention;

FIG. 6 is a schematic view of the connection structure of the adjusting seat and the positioning latch of the present invention;

FIG. 7 is a schematic cross-sectional view of an adjusting seat according to the present invention;

FIG. 8 is a schematic view of the bottom view of the movable frame of the present invention;

Fig. 9 is an enlarged view of the structure of fig. 8B according to the present invention.

The device comprises a frame 1, a frame 2, a first motor, a 3, a screw rod, a 4, a guide rod, a 5, a first mounting plate, a 6, a drilling machine, a 7, a transverse frame, a 8, a second mounting plate, a 9, a fixed seat 10, a movable frame 11, a second motor, a 12, a rotating column 13, a frame plate 14, a hydraulic cylinder 15, a containing seat 16, a buffer spring 17, a pushing piece 18, a sliding groove 19, a sliding plate 20, a first guide pillar 21, a first return spring 22, a limiting piece 23, a roller, 24, a second guide pillar 25, an adjusting seat 26, a wear-resisting plate 2601, a second return spring 27, a sliding block 28, a positioning latch 29, a telescopic column 30, a third return spring 31, a third guide pillar 32, a movable plate 33, a fourth return spring 34 and a pull rope.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

In order to solve the technical problem, please refer to fig. 1-5, the embodiment discloses a quick positioning drilling machine for gears, which comprises a vertically arranged frame 1, wherein a transverse frame 7 is horizontally and fixedly arranged at the lower end of the frame 1, adjusting mechanisms are arranged on the frame 1 and the transverse frame 7, a first mounting plate 5 and a second mounting plate 8 are respectively arranged on the two adjusting mechanisms, a drilling machine 6 and a fixed seat 9 are respectively and fixedly arranged on the first mounting plate 5 and the second mounting plate 8, a movable frame 10 is rotatably arranged on the fixed seat 9, a second motor 11 is fixedly arranged on the inner side of the fixed seat 9, a movable frame 10 is fixedly arranged at the output end of the second motor 11, a rotating column 12 is elastically rotatably arranged at the center position of the movable frame 10, a frame plate 13 is fixedly arranged at the upper end of the rotating column 12, a positioning component for preliminary positioning of the gears is arranged on the frame plate 13, and a locking component for locking into a tooth space uniformly is arranged on the movable frame 10.

The adjusting mechanism comprises two first motors 2 and guide rods 4 which are respectively and fixedly arranged on a frame 1 and a transverse frame 7, a screw rod 3is fixedly arranged at the output end of the first motor 2, the two screw rods 3 are respectively and fixedly connected with a first mounting plate 5 and a second mounting plate 8 in a threaded manner, meanwhile, the first mounting plate 5 and the second mounting plate 8 are both arranged on the outer side of the guide rod 4 in a sliding manner, a frame plate 13 and a gear to be processed are coaxially arranged, a positioning assembly comprises a hydraulic cylinder 14 fixedly arranged on the upper surface of the lower end of the movable frame 10, the upper end of the hydraulic cylinder 14 is fixedly connected with a containing seat 15, the containing seat 15 is sleeved on the outer side of a pushing member 17, a buffer spring 16 is fixedly connected between the containing seat 15 and the pushing member 17, the pushing member 17 is sleeved on the outer side of a rotating column 12 in a sliding manner, a sliding groove 18 is uniformly formed in the frame plate 13, the positioning assembly further comprises a sliding plate 19 which is slidably arranged in the sliding groove 18, the lower part of the sliding plate 19 is transversely and fixedly provided with a first guide post 20, the first guide post 20 is in telescopic connection with the frame plate 13, a first return spring 21is connected between the sliding plate 19 and the frame plate 13, the upper part of the pushing piece 17 is in a conical structure, the pushing piece 17 contacts with the lower end of the sliding plate 19 in the upward moving process and pushes the sliding plate 19 to slide along the sliding groove 18, the top of the sliding plate 19 elastically rotates and is provided with a limiting piece 22, the limiting piece 22 is in an arc-shaped structure, the lower end of the limiting piece 22 contacts with the inner ring of the gear and rotates in the moving process of the sliding plate 19, the upper end of the limiting piece 22 is pressed and attached to the upper surface of the gear, the locking assembly comprises a second guide post 24 which is slidably mounted on the movable frame 10, one end of the second guide post 24 away from the gear is fixedly provided with a wear-resistant plate 26, and the lower part of the wear-resistant plate 26 is in an inclined structure, simultaneously, the roller 23 is rotatably arranged on the outer side of the accommodating seat 15, the accommodating seat 15 drives the roller 23 to roll on the outer side of the attaching wear plate 26 in the upward moving process, a second reset spring 2601 is fixedly connected between the movable frame 10 and the wear plate 26, an adjusting seat 25 is fixedly arranged at one end of the second guide pillar 24 close to a gear, a sliding block 27 is arranged in a lifting sliding manner in a groove body arranged on the adjusting seat 25, positioning clamping teeth 28 are fixedly connected on the outer side of the sliding block 27 through bolts, and the positioning clamping teeth 28 are driven to clamp into tooth grooves of the gear in the moving process of the adjusting seat 25.

When the gear needs to be drilled, the gear to be machined is placed above the frame plate 13, so that the central hole of the gear is sleeved on the outer side of the sliding plate 19, then the hydraulic cylinder 14 is controlled to push the containing seat 15 to move upwards, at the moment, the containing seat 15 drives the pushing piece 17 to move upwards synchronously through the buffer spring 16, the conical surface at the upper end of the pushing piece 17 contacts and pushes the lower part of the sliding plate 19 to slide along the sliding groove 18, meanwhile, the first guide pillar 20 on the pushing piece 17 and the frame plate 13 are adjusted in a telescopic manner, the limiting piece 22 connected with the upper end of the limiting piece gradually approaches the central hole of the gear along with the movement of the sliding plate 19, at the moment, the lower end of the limiting piece 22 contacts the central hole wall of the gear, so that the limiting piece 22 elastically rotates, and the upper end of the limiting piece 22 contacts the upper surface of the pressing gear in the rotating process, so that the position correction and the preliminary positioning of the gear are realized, ensuring that the gear and the frame plate 13 are kept coaxial, when the pushing piece 17 cannot move upwards, the hydraulic cylinder 14 can push the containing seat 15 to move upwards continuously, so that the roller 23 on the outer side of the containing seat 15 contacts the wear-resisting plate 26, thereby pushing the wear-resisting plate 26 to slide towards the gear, at the moment, the wear-resisting plate 26 can drive the adjusting seat 25 to move synchronously through the second guide post 24, so that the positioning latch 28 on the outer side of the adjusting seat 25 can be clamped into a tooth slot of the gear to lock the gear, so as to ensure the positioning stability of the gear, the first motor 2 on the subsequent control rack 1 drives the screw rod 3 to rotate, the first mounting plate 5 can be driven to adjust along the guide rod 4 in a lifting manner, the drilling machine 6 on the first mounting plate 5 moves downwards to realize drilling of the gear, the second mounting plate 8 on the control transverse frame 7 moves, the position of the gear can be adjusted, the subsequent control second motor 11 drives the movable frame 10 to rotate, the angle of the gear can be adjusted, and the drilling position of the gear can be conveniently adjusted.

Embodiment two: the technical content disclosed in the present embodiment is a further improvement made on the basis of the first embodiment, and when the existing gear drilling machine is used for positioning, the angle of the gear is inconvenient to automatically regulate and control, manual pre-regulation is needed, the processing efficiency is reduced, to further solve this technical problem, the present embodiment discloses the following technical matters, as shown in fig. 6 to 9; a fine adjustment mechanism for driving the gear to be processed to rotate and finely adjust is connected between the locking component and the movable frame 10, the fine adjustment mechanism comprises a telescopic column 29 vertically and fixedly arranged on the lower surface of the sliding block 27, the telescopic column 29 penetrates through the lower end of the adjusting seat 25, the lower end of the telescopic column 29 is in a spherical structure, a third reset spring 30 is connected between the sliding block 27 and the adjusting seat 25, the fine adjustment mechanism further comprises a third guide column 31 fixedly arranged on the lower surface of the upper part of the movable frame 10, a movable plate 32 is sleeved on the outer side of the third guide column 31 in a lifting manner, and a fourth return spring 33 is fixedly connected between the movable frame 10 and the movable plate 32, one side of the positioning latch 28 facing the gear is in an inclined plane structure, and the positioning latch 28 is in contact with the tooth block of the gear and performs ascending adjustment when being pressed, the movable plate 32 is arranged in a U-shaped structure, the lower end of the telescopic column 29 slides in a groove body on the movable plate 32 and performs ascending and descending adjustment, and the telescopic column 29 drives the movable plate 32 to synchronously move upwards and adjust in the rising process, the outer side of the movable plate 32 is fixedly connected with a pull rope 34, one end of the pull rope 34 away from the movable plate 32 is fixedly connected with the outer side of the frame plate 13, and the pull rope 34 is obliquely arranged between the frame plate 13 and the movable plate 32, and the frame plate 13 and the rotary column 12 are pulled by the pull rope 34 to elastically rotate in the process of moving the movable plate 32 upwards.

In the moving process of the adjusting seat 25, the telescopic column 29 connected to the adjusting seat can slide along the groove body on the movable plate 32, when the positioning latch 28 moves and contacts with the gear block part of the gear, the gear block of the gear can exert force on the inclined surface of the positioning latch 28 so as to push the positioning latch 28 to move upwards, at the moment, the positioning latch 28 can drive the sliding block 27 to elastically move upwards in the groove body of the adjusting seat 25, the sliding block 27 can drive the movable plate 32 to elastically lift and adjust through the telescopic column 29, at the moment, the movable plate 32 can pull the frame plate 13 and the rotary column 12 to elastically rotate through the pull rope 34 at the outer side of the sliding block, and further, the gear limited on the frame plate 13 is rotationally and finely adjusted, and when the tooth slot of the gear moves to the outer side of the positioning latch 28, the positioning latch 28 can elastically reset and is clamped into the tooth slot of the gear, so that the adjusting and locking of the gear are realized, and the positioning convenience and the stability of the gear are effectively improved.

What is not described in detail in this specification is prior art known to those skilled in the art.

Although the present invention has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present invention.

Claims

1. The utility model provides a quick gear drilling machine that fixes a position, includes frame (1) of vertical setting, the lower extreme level fixed mounting of frame (1) has crossbearer (7), and all is provided with adjustment mechanism on frame (1) and crossbearer (7), and install first mounting panel (5) and second mounting panel (8) on two adjustment mechanism respectively, simultaneously on first mounting panel (5) and second mounting panel (8) respectively fixed mounting have rig (6) and fixing base (9);

The automatic fine adjustment device is characterized in that a movable frame (10) is rotatably mounted on the fixed seat (9), a second motor (11) is fixedly mounted on the inner side of the fixed seat (9), the movable frame (10) is fixedly mounted at the output end of the second motor (11), a rotating column (12) is elastically rotatably mounted at the central position of the movable frame (10), a frame plate (13) is fixedly mounted at the upper end of the rotating column (12), a positioning component for preliminarily positioning a gear is mounted on the frame plate (13), a locking component for clamping into a tooth slot is uniformly mounted on the movable frame (10), and a fine adjustment mechanism for driving the gear to be processed to rotate is connected between the locking component and the movable frame (10).

2. The rapid positioning gear drilling machine according to claim 1, wherein the adjusting mechanism comprises two first motors (2) and guide rods (4) which are respectively fixedly mounted on the frame (1) and the transverse frame (7), screw rods (3) are fixedly mounted at the output ends of the first motors (2), the two screw rods (3) are respectively in threaded connection with the first mounting plate (5) and the second mounting plate (8), and meanwhile the first mounting plate (5) and the second mounting plate (8) are both arranged on the outer sides of the guide rods (4) in a sliding mode.

3. The quick positioning gear drilling machine according to claim 1, wherein the frame plate (13) and the gear to be machined are coaxially arranged, the positioning assembly comprises a hydraulic cylinder (14) fixedly arranged on the upper surface of the lower end of the movable frame (10), the upper end of the hydraulic cylinder (14) is fixedly connected with a containing seat (15), the containing seat (15) is sleeved on the outer side of the pushing piece (17), a buffer spring (16) is fixedly connected between the containing seat (15) and the pushing piece (17), and the pushing piece (17) is sleeved on the outer side of the rotating column (12) in a sliding mode.

4. The drilling machine for the gear with the rapid positioning function according to claim 3, wherein the frame plates (13) are uniformly provided with the sliding grooves (18), the positioning assembly further comprises sliding plates (19) which are slidably arranged in the sliding grooves (18), the lower parts of the sliding plates (19) are transversely and fixedly provided with first guide posts (20), the first guide posts (20) are in telescopic connection with the frame plates (13), first return springs (21) are connected between the sliding plates (19) and the frame plates (13), the upper parts of the pushing pieces (17) are arranged in a conical structure, and the pushing pieces (17) contact with the lower ends of the sliding plates (19) in the upward moving process and push the sliding plates (19) to slide along the sliding grooves (18).

5. The rapid positioning gear drilling machine according to claim 4, wherein the top of the sliding plate (19) is elastically provided with a limiting piece (22) in a rotating mode, the limiting piece (22) is arranged in an arc-shaped structure, the lower end of the limiting piece (22) contacts the inner ring of the gear and rotates in the process that the sliding plate (19) moves to be close to the gear, and meanwhile the upper end of the limiting piece (22) is pressed down to be attached to the upper surface of the gear.

6. The rapid positioning gear drilling machine according to claim 3, wherein the locking assembly comprises a second guide post (24) slidably mounted on the movable frame (10), one end, far away from the gear, of the second guide post (24) is fixedly provided with a wear-resisting plate (26), the lower portion of the wear-resisting plate (26) is in an inclined structure, meanwhile, the outer side of the containing seat (15) is rotatably provided with a roller (23), the outer side of the containing seat (15) is attached to the wear-resisting plate (26) to roll in the process of moving the roller (23) upwards, and a second reset spring (2601) is fixedly connected between the movable frame (10) and the wear-resisting plate (26).

7. The rapid positioning gear drilling machine according to claim 6, wherein an adjusting seat (25) is fixedly arranged at one end, close to a gear, of the second guide column (24), a sliding block (27) is arranged in a lifting sliding mode in a groove body formed in the adjusting seat (25), positioning clamping teeth (28) are fixedly connected to the outer side of the sliding block (27) through bolts, and meanwhile the positioning clamping teeth (28) are driven to clamp into tooth grooves of the gear in the moving process of the adjusting seat (25).

8. The quick positioning gear drilling machine according to claim 7, wherein the fine adjustment mechanism comprises a telescopic column (29) vertically and fixedly arranged on the lower surface of the sliding block (27), the telescopic column (29) penetrates through the lower end of the adjusting seat (25), the lower end of the telescopic column (29) is in a spherical structure, and a third reset spring (30) is connected between the sliding block (27) and the adjusting seat (25);

The fine tuning mechanism further comprises a third guide post (31) fixedly mounted on the lower surface of the upper portion of the movable frame (10), a movable plate (32) is sleeved on the outer side of the third guide post (31) in a lifting mode, a fourth reset spring (33) is fixedly connected between the movable frame (10) and the movable plate (32), one side of the positioning latch (28) facing the gear is in an inclined surface structure, the positioning latch (28) is in contact with a tooth block of the gear and is subjected to ascending adjustment when being pressed, the movable plate (32) is in a U-shaped structure, the lower end of the telescopic column (29) slides in a groove body on the movable plate (32) and is in ascending adjustment, and the movable plate (32) is driven to synchronously move upwards in the ascending process of the telescopic column (29).

9. The rapid positioning gear drilling machine according to claim 8, wherein a pull rope (34) is fixedly connected to the outer side of the movable plate (32), one end, away from the movable plate (32), of the pull rope (34) is fixedly connected to the outer side of the frame plate (13), the pull rope (34) is obliquely arranged between the frame plate (13) and the movable plate (32), and meanwhile the movable plate (32) pulls the frame plate (13) and the rotary column (12) to elastically rotate through the pull rope (34) in the upward movement process.