CN220388139U - Gear shaping machine for oil injection pump gear machining - Google Patents

Abstract

The utility model relates to the field of gear shaping machine processing equipment, in particular to a gear shaping machine for processing a gear of an oil injection pump. The automatic feeding device comprises a frame, wherein a horizontally arranged mounting plate is arranged on the frame, a feeding box is fixed on the lower plate surface of the mounting plate, a hydraulic cylinder is fixed at the output end of the feeding box, a first rotating assembly is arranged on the output shaft of the hydraulic cylinder, and a detachable gear shaping cutter is arranged on the first rotating assembly; a workbench which is horizontally arranged is in sliding fit on the frame; the workbench is provided with a clamp which is fixedly connected with the output end of the second rotating assembly; the lower surface of the workbench is fixedly provided with a first fixing seat and a second fixing seat, and the second rotating assembly is rotationally connected with the first fixing seat and the second fixing seat. The feeding device is used for adjusting the position of the gear shaping cutter, the position of the clamp is fixed, the workpiece is fixed, and gear machining is performed; the gear shaper cutter moves up and down to be linked with the rotation of a workpiece through the transmission device, so that gear machining is performed; the operation is simple, and the processing efficiency of the workpiece is higher.

Description

Gear shaping machine for oil injection pump gear machining

Technical Field

The utility model relates to the field of gear shaping machine processing equipment, in particular to a gear shaping machine for processing a gear of an oil injection pump.

Background

The gear shaper is a kind of metal cutting machine, which is a gear processing machine that uses a gear shaper cutter to process inner and outer straight teeth and helical teeth cylindrical gears and other tooth-shaped parts according to a generating method. The gear shaping method of machining the tooth form of a gear, rack, or the like with a pinion cutter as a tool is called "pinion". When in gear shaping, the gear shaping knife performs up-and-down reciprocating cutting motion and simultaneously rolls relatively to the workpiece. The gear shaper is mainly used for processing multiple gears and internal gears, and racks can be processed after accessories are added. The use of special tools on gear shaping machines also enables the machining of non-round gears, incomplete gears and internally and externally shaped surfaces.

Through searching, the patent application with the bulletin number of CN213318136U discloses a gear shaping machine for processing a fluted disc of a coupler; the base is fixedly provided with a first hydraulic cylinder and the processing table, the output end of the first hydraulic cylinder is fixedly connected with the processing table, the first hydraulic cylinder drives the processing table to move along the horizontal direction, and the processing table is provided with a chuck; the bottom of the side frame is fixedly arranged on the base, the top plate is fixedly arranged on the side frame and positioned on the upper portion of the base, the second hydraulic cylinder is fixedly arranged on the top plate, the output end of the second hydraulic cylinder is connected with the motor, the end part of the motor is connected with the gear shaping cutter, the motor drives the gear shaping cutter to rotate in the horizontal plane, and the second hydraulic cylinder drives the gear shaping cutter to move along the vertical direction.

Patent application publication No. CN209792793U discloses a gear shaping machine, including frame and workstation and gear shaping device that sets up in the frame, gear shaping device is located the top of workstation, be provided with clamping device on the workstation.

Among the above-mentioned technical scheme, gear shaping machine is when carrying out gear machining, and not only the position and the rotation angle of gear shaping sword need be adjusted in real time, still need synchronous adjustment by the position of processing work piece, make gear shaping sword and by the cooperation of processing work piece, just can carry out the production of work piece, the process is loaded down with trivial details, and the production efficiency of work piece is lower.

Disclosure of Invention

In order to solve the problems in the background technology, the utility model provides a gear shaping machine for processing an oil injection pump gear.

In order to achieve the above object, the present utility model provides the following technical solutions:

the gear shaping machine for the oil injection pump gear machining comprises a frame, wherein a mounting plate is fixedly arranged above the frame, the mounting plate is horizontally arranged, a feed box is fixedly arranged on the lower plate surface of the mounting plate, the output end of the feed box is fixedly connected with a vertical downward hydraulic cylinder, a first rotating assembly is arranged on the output shaft of the hydraulic cylinder, and a detachable gear shaping cutter is arranged on the first rotating assembly; a workbench is arranged on the rack in a sliding fit manner, and is horizontally arranged; and the upper surface of the workbench is provided with a clamp.

Specifically, the first rotating assembly comprises a sleeve, and the sleeve is fixedly arranged on an output shaft of the hydraulic cylinder; an annular gear is fixedly arranged at the lower part of the inner side wall of the sleeve; the side wall of the output shaft of the hydraulic cylinder is provided with an annular groove, the annular groove is rotationally connected with a mounting frame, and one side of the mounting frame, which is far away from the output shaft of the hydraulic cylinder, is fixedly connected with a second motor; the output shaft of the second motor is vertically downward and is fixedly connected with a gear; the inner gear ring is meshed with the gear; the gear shaper cutter is arranged on the lower end face of the mounting frame.

Preferably, the sleeve is in a cylindrical shape with an opening at the lower end; an output shaft of the hydraulic cylinder penetrates through the center position of the upper bottom surface of the sleeve.

Specifically, the fixture is rotatably arranged on the workbench, a second rotating assembly is further arranged on the workbench, and a rack matched with the second rotating assembly is arranged on an output shaft of the hydraulic cylinder.

Preferably, the workbench is provided with a round table; the round table consists of an upper round table, a lower round table and a support column; the upper round table and the lower round table are fixedly connected through a support column, the upper surface of the upper round table is in running fit with the lower surface of the clamp, and the lower surface of the upper round table is fixedly connected with the upper surface of the workbench; the support column passes through the workbench and is fixedly connected with the workbench; the upper surface of the lower round table is fixedly connected with the lower surface of the workbench.

Preferably, the second rotating assembly comprises a first rotating rod penetrating through the supporting column and in rotating fit with the supporting column, and the upper end face of the first rotating rod is fixedly connected with the center position of the lower surface of the clamp; the lower terminal surface fixedly connected with first bevel gear of first bull stick, fixedly provided with second fixing base and first fixing base on the workstation, the damping rotation is provided with the second bull stick on the first fixing base, and the one end of second bull stick is fixedly provided with the second bevel gear with first bevel gear meshing, and the other end of second bull stick is fixedly provided with the third bevel gear, rotates on the second fixing base and is provided with the pivot, and the one end of pivot is fixedly provided with rack matched with unidirectional gear, the other end of pivot fixedly provided with the fourth bevel gear of third bevel gear meshing.

Specifically, a first motor is fixedly arranged on the right side of the frame; the output end of the first motor is fixedly connected with a screw rod, and the screw rod is rotationally connected to the frame; the lower surface of the workbench is fixedly provided with a moving plate, and the moving plate is provided with a threaded hole; the screw rod is in threaded connection with a threaded hole on the moving plate.

Specifically, fixedly be provided with the slide rail along workstation direction of movement in the frame, the spout has been seted up to the lower terminal surface of workstation, spout and slide rail sliding fit.

Compared with the prior art, the utility model has the following beneficial effects:

first, through setting up feed box and first rotating assembly, gear shaping sword is when carrying out gear machining, can carry out back-and-forth movement, control and remove, can carry out the rotation along axial at the machining surface of work piece again simultaneously, and operation process is simple, and production efficiency is high.

Secondly, in the workpiece machining process, the gear shaping cutter stretches up and down along with the output shaft of the hydraulic cylinder to move up and down; simultaneously, under the effect of the second rotating component, the clamp can be in linkage with the gear shaping cutter, namely the gear shaping cutter moves upwards after cutting a tooth slot, when the gear shaping cutter is separated from a workpiece, the second rotating component drives the clamp to rotate along the horizontal plane by a certain angle, and then the workpiece rotates along the horizontal plane by a certain angle, and then cutting of the next tooth slot is performed. The gear shaper cutter can move up and down in one cutting action, and simultaneously the workpiece rotates, so that the gear shaper cutter performs circumferential rotary motion relative to a processing surface of the workpiece, and the processing efficiency is improved.

Drawings

FIG. 1 is a schematic perspective view of an embodiment of the present utility model;

FIG. 2 is a schematic illustration in partial cross-section of an example one of the utility model;

FIG. 3 is an enlarged schematic view of a portion of FIG. 2 at A;

FIG. 4 is a schematic perspective view of a second embodiment of the present utility model;

FIG. 5 is a schematic partial cross-sectional view of an example II of the present utility model;

FIG. 6 is an enlarged schematic view of a portion of FIG. 5 at B;

FIG. 7 is a schematic view of a second transmission assembly of the present utility model;

in the figure: 1. a frame; 2. a work table; 3. a screw rod; 4. a mounting plate; 5. a feed box; 6. a hydraulic cylinder; 7. a sleeve; 8. a gear shaping cutter; 9. a clamp; 10. a first motor; 11. a moving plate; 12. a second motor; 13. a gear; 14. a mounting frame; 15. an inner gear ring; 16. a rack; 19. a first rotating lever; 20. round bench; 21. a first bevel gear; 22. a second bevel gear; 23. a first fixing seat; 24. a second rotating rod; 25. a third bevel gear; 26. a fourth bevel gear; 27. a one-way gear; 28. a rotating shaft; 29. the second fixing seat.

Detailed Description

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

Example 1

A gear shaper for oil injection pump gear processing as described in fig. 1-3.

The gear shaping machine for machining the oil injection pump gear comprises a frame 1, wherein a mounting plate 4 is fixedly connected to a side frame of the frame 1. A sliding rail is arranged on the frame 1 below the mounting plate 4, and the frame 1 is fixedly provided with a first motor 10 which is horizontally arranged. The sliding rail is in sliding fit with a sliding groove on the lower end surface of the workbench 2. The output shaft of the first motor 10 is fixedly connected with a screw rod 3, the screw rod 3 is rotationally connected with the frame 1, and the frame 1 supports the screw rod 3. The motor 10 drives the screw rod 3 to rotate around the axis of the screw rod 3. The lower end face of the workbench 2 is fixedly provided with a moving plate 11, and the moving plate 11 is provided with a threaded through hole. The threaded through hole on the moving plate 11 is in threaded connection with the screw rod 3, and the workbench 2 is pushed to move.

And a mounting fixture 9 is fixed on the workbench 2 and is used for fixing a workpiece, so that the position of the workpiece is ensured not to deviate in the processing process.

The lower surface of the mounting plate 4 is fixedly provided with a feed box 5, and the output end of the feed box 5 is fixedly connected with a hydraulic cylinder 6 to drive the hydraulic cylinder 6 to move forwards and backwards and leftwards and rightwards.

The output shaft of the hydraulic cylinder 6 is provided with a first rotating component which ensures that the gear shaper cutter 8 rotates on a horizontal plane. The first rotating assembly comprises a sleeve 7. The sleeve 7 has a cylindrical structure with an opening at the lower end. An inner gear ring 15 is fixedly arranged at the lower part of the inner side wall of the sleeve 7. The output shaft of the hydraulic cylinder 6 passes through the top cover from the sleeve 7 and protrudes into the sleeve 7. The output shaft of the hydraulic cylinder 6 is arranged coaxially with the central axis of the sleeve 7. The sleeve 7 is fixedly connected with the output end of the hydraulic cylinder 6.

The side wall of the output shaft of the hydraulic cylinder 6 is provided with an annular groove, the annular groove is rotationally provided with a mounting frame 14, the annular groove limits the mounting frame 14 in the vertical direction, and meanwhile, the mounting frame 14 is ensured to move up and down along with the output shaft of the hydraulic cylinder 6.

A second motor 12 with an output shaft vertically downward is fixedly connected to one side of the mounting frame 14 away from the output shaft of the hydraulic cylinder 6. The output shaft of the second motor 12 is fixedly connected with a gear 13. The gear 13 is engaged with the ring gear 15. By the meshing engagement, the output shaft of the motor 12 can revolve around the central axis of the hydraulic cylinder 6. The detachable slotting cutter 8 is arranged on the mounting frame 14, so that the forming and cutting of tooth grooves can be performed. The gear shaper cutter 8 rotates with the mounting frame 14 around the central axis of the hydraulic cylinder 6.

The workbench 2 and the mounting plate 4 are horizontally arranged.

Working principle:

before starting the work, a mounting rack 14 of a suitable length is selected. The output shaft of the hydraulic cylinder 6 is in a retracted state, the pinion cutter 8 is mounted to the mounting bracket 14, and the workpiece is fixedly mounted to the jig 9. The first motor 10 is started, and the output shaft starts to rotate, so that the screw rod 3 is driven to rotate. The moving plate 11 drives the workbench 2 to move right below the mounting plate 4. When the workpiece moves to the position right below the mounting plate 4, the first motor 10 stops rotating, and the workpiece is fixed.

At this time, the feed box 5 and the second motor 12 are started. The output end of the feed box 5 drives the hydraulic cylinder 6 to adjust the front, back, left and right positions, and the gear shaper cutter 8 is adjusted to a proper position. The second motor 12 is started, and the output shaft starts to rotate, and the rotation of the output shaft drives the gear 13 to rotate. The second motor 12 is fixedly connected to one side of the mounting frame 14, and the other side of the mounting frame 14 is rotatably connected to an output shaft of the hydraulic cylinder 6. The sleeve 7 is fixedly arranged on the output shaft of the hydraulic cylinder 6. Under the action of the meshing engagement of the gear 13 and the inner gear ring 15 on the inner side wall of the sleeve 7, the gear 13 revolves around the axis of the output shaft of the hydraulic cylinder 6. The revolution of the gear 13 drives the second motor 12, the gear 13 and the mounting frame 14 to rotate in the same way, and as the gear shaper cutter 8 is mounted on the mounting frame 14, the gear shaper cutter 8 also rotates around the axis of the output shaft of the hydraulic cylinder 6. When the cutting edge of the slotting cutter 8 is in the proper machining position, the second motor 12 stops rotating.

Then the hydraulic cylinder 6 starts to work, and the output shaft thereof stretches up and down, so as to drive the gear shaper cutter 8 to move up and down. I.e. the slotting tool 8 cuts the workpiece.

After the first tooth slot is machined, the gear shaping cutter 8 moves upwards to separate from the upper surface of the workpiece, the second motor 12 moves to adjust the gear shaping cutter 8, and after the gear shaping cutter 8 rotates a certain angle, the cutting edge of the gear shaping cutter 8 is aligned with the machining of the second tooth slot of the workpiece again, and then the machining of the second tooth slot is performed.

The above-mentioned actions are repeated to complete the processing of the gear, at this time, the second motor 12 stops working, the hydraulic cylinder 6 is retracted, and the gear shaper cutter is far away from the workpiece. The first motor 10 rotates reversely to the previous one to bring the workpiece back to the initial position, the first motor 10 stops rotating to take the workpiece off the clamp 9, and the working process is finished.

Example 2

The utility model provides an injection pump gear machining is with gear shaping machine, includes frame 1, fixedly connected with is mounting panel 4 that the level was placed on the side bearer of frame 1, the lower terminal surface fixedly connected with pneumatic cylinder 6 of mounting panel 4, detachable gear shaping sword 8 is installed to the output of pneumatic cylinder 6 for the cutting to the work piece.

The upper surface of the frame 1 is fixedly provided with a sliding rail and a first motor 10 which is horizontally arranged. The sliding rail is in sliding fit with the workbench 2 through a sliding groove on the lower end surface of the workbench 2. The workbench 2 is horizontally arranged. The output end of the first motor 10 is fixedly connected with the screw rod 3 and drives the screw rod 3 to rotate around the axis of the screw rod 3. The lower end face of the workbench 2 is fixedly provided with a movable plate 11, and the movable plate 11 is provided with a threaded through hole. The threaded through hole is in threaded connection with the screw rod 3, the screw rod 3 rotates to push the moving plate 11 to move, and the moving plate 11 moves to drive the workbench 2 to move.

The workbench 2 is rotatably provided with a clamp 9. The jig 9 is supported by a circular table 20. The circular table 20 is composed of an upper circular table, a lower circular table and a supporting column, and the three components are coaxial. The upper end surface of the support column is fixedly connected with the lower surface of the upper round table. The lower end face of the support column is fixedly connected with the upper end face of the lower round table. The support column is fixedly connected with the workbench 2, the upper surface of the workbench 2 is fixedly connected with the lower surface of the upper round table, and the lower surface of the workbench 2 is fixedly connected with the upper surface of the lower round table. The support column is provided with a through hole along the central axis.

The workbench 2 is provided with a second rotating assembly.

The second rotating assembly comprises a first rotating rod 19. The first rotating rod 19 is a vertically placed cylinder, the upper end face of the first rotating rod 19 is fixedly connected to the center position of the lower end face of the clamp 9, and the lower end face of the first rotating rod 19 is fixedly connected with a coaxial first bevel gear 21. The first rotating rod 19 passes through the through hole of the support column and is rotatably connected with the support column. A first fixing base 23 and a second fixing base 29 are fixedly arranged at the bottom of the workbench 2.

The first fixing seat 23 is provided with a through hole, a pin groove is arranged in the through hole, a round spring pin is matched in the pin groove, the round spring pin is fixedly arranged on the second rotating rod 24, the limit is ensured to be started when the second rotating rod 24 stops rotating, and the limit is released when the second rotating rod 24 starts rotating. The second rotating rod 24 passes through the through hole and is rotatably connected with the first fixing seat 23. The first fixing seat 23 and the second rotating rod 24 can also be rotationally connected through other existing damping mechanisms.

One end of the second rotating rod 24 is fixedly connected with a coaxial second bevel gear 22, and the other end is fixedly connected with a coaxial third bevel gear 25. The second bevel gear 22 is in meshing engagement with the first bevel gear 21.

The second fixing base 29 is provided with a through hole. The rotation shaft 28 passes through the through hole and is rotatably connected with the second fixing seat 29. One end of the rotating shaft 28 is fixedly connected with the coaxial fourth bevel gear 26, and the other end of the rotating shaft 28 is rotatably connected with the coaxial one-way gear 27. The fourth bevel gear 26 is in meshing engagement with the third bevel gear 25.

The unidirectional gear 27 cooperates with the rack 16. The rack 16 is in an inverted L shape, and the rack 16 is fixedly connected to an output shaft of the hydraulic cylinder 6, and the rack 16 is placed in a vertical direction. The distance between the lower end surface of the gear shaper cutter 8 and the uppermost tooth on the rack 16 is larger than the thickness of the workpiece, so that the rack 16 is not meshed with the unidirectional gear 27 in the process of upward movement of the gear shaper cutter 8 in a tooth slot, and the workpiece is not processed to rotate. The workbench 2 is provided with a rectangular through hole on the workbench body of the workbench 2 right above the unidirectional gear 27, the rack 16 can pass through the rectangular through hole to be meshed with the unidirectional gear 27, and meanwhile, the rack 16 does not interfere with a processed workpiece when descending along with the output shaft of the hydraulic cylinder 6. When the pinion cutter 8 cuts downward, the one-way gear 27 is engaged with the rack 16, and the one-way gear 27 idles. When the gear shaper cutter 8 moves upwards and is separated from a machined workpiece, the rack 16 is meshed through the rack and the pinion, the unidirectional gear 27 is driven to rotate reversely, and at the moment, the unidirectional gear 27 starts to work to drive the rotating shaft 28 to rotate.

The central axis of the gear shaper cutter 8 is parallel to the central axis of the clamp 9, and the central axis of the gear shaper cutter 8 and the central axis of the clamp 9 are perpendicular to the axis of the output shaft of the first motor 10.

Before starting the work, the output end of the hydraulic cylinder 6 is in a retracted state, and the processed workpiece is fixed on the clamp 9. The first motor 10 starts to work, the workbench 2 moves to the lower part of the hydraulic cylinder 6 with the workpiece on the clamp 9 under the action of the screw pair, and when the rack 16 in the second transmission assembly moves downwards to be meshed with the one-way gear 27 in the second rotation assembly, the workbench 2 stops moving, and the first motor 10 stops rotating. At this time, the round spring pin is matched with the pin groove in the first fixing seat 23 to limit the second rotating rod 24, namely, limit the machined workpiece, and prevent the machined workpiece on the clamp 9 from rotating. At the same time, the pinion 8 is in the machining position.

The pinion 8 is now mounted on the output shaft of the hydraulic cylinder 6. The hydraulic cylinder 6 is started, and the output shaft of the hydraulic cylinder 6 moves downwards to drive the gear shaper cutter 8 and the rack 16 to move downwards. In the process of moving downwards, the slotting cutter 8 cuts the machined workpiece and machines tooth grooves. The rack 16 is meshed with a one-way gear 27, and the one-way gear 27 idles.

When the tooth slot machining is completed, the cutting edge of the gear shaper cutter 8 is positioned below the machined workpiece, and at the moment, the rack 16 and the one-way gear 27 are not meshed. The output end of the hydraulic cylinder 6 is then retracted, the pinion 8 moves upwards and the rack 16 moves upwards. When the pinion cutter 8 is disengaged from the workpiece to be machined, the rack 16 is engaged with the one-way gear 27, and the one-way gear 27 starts to operate and rotates in the opposite direction.

The reversing of the unidirectional gear 27 drives the rotating shaft 28 to rotate, and the round spring pin breaks away from the pin groove to release the limit of the machined workpiece. Rotation of the shaft 28 causes synchronous rotation of the fourth bevel gear 26. Due to the meshing engagement of the gears, the fourth bevel gear 26 drives the third bevel gear 25 to rotate synchronously. The third bevel gear 25 drives the second bevel gear 22 to synchronously rotate through the second rotating rod 24. Under the action of the meshing and matching of the gears, the second bevel gear 22 drives the first bevel gear 21 to synchronously rotate. The first bevel gear 21 drives the clamp 9 to synchronously rotate on the round table 20 around the central axis of the first rotating rod 19 through the first rotating rod 19. The rotation of the clamp 9 drives the machining workpiece to synchronously rotate.

At this time, after the rack 16 moves up a certain distance, the machined workpiece rotates by a corresponding angle, and the round spring pin cooperates with the pin slot to limit the machined workpiece and prevent the workpiece from rotating. The output end of the hydraulic cylinder 6 is extended, the rack 16 moves downwards, the unidirectional gear 27 idles, and the gear shaper cutter 8 performs the processing of the second tooth socket.

The above working process is repeated, when the workpiece is processed, the output shaft of the hydraulic cylinder 6 is retracted to the initial position, the workbench 2 is returned to the initial position, and then the workpiece is taken out.

Example 3

The technical solutions in example 1 and example 2 can be adopted simultaneously.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (8)

1. The utility model provides an injection pump gear processing is with gear shaping machine, includes frame (1), its characterized in that: the automatic gear shaping machine is characterized in that a mounting plate (4) is fixedly arranged above the frame (1), the mounting plate (4) is horizontally arranged, a feeding box (5) is fixedly arranged on the lower plate surface of the mounting plate (4), the output end of the feeding box (5) is fixedly connected with a vertical downward hydraulic cylinder (6), a first rotating assembly is arranged on an output shaft of the hydraulic cylinder (6), and a detachable gear shaping cutter (8) is arranged on the first rotating assembly; a workbench (2) is arranged on the frame (1) in a sliding fit manner, and the workbench (2) is horizontally arranged; the upper surface of the workbench (2) is provided with a clamp (9).

2. The gear shaper for oil injection pump gear machining as set forth in claim 1, wherein the first rotating assembly includes a sleeve (7), the sleeve (7) being fixedly mounted on an output shaft of a hydraulic cylinder (6); an annular gear (15) is fixedly arranged at the lower part of the inner side wall of the sleeve (7); an annular groove is formed in the side wall of the output shaft of the hydraulic cylinder (6), a mounting frame (14) is connected in the annular groove in a rotating mode, and a second motor (12) is fixedly connected to one side, away from the output shaft of the hydraulic cylinder (6), of the mounting frame (14); an output shaft of the second motor (12) is vertically downward and is fixedly connected with a gear (13); the inner gear ring (15) is meshed with the gear (13); the gear shaper cutter (8) is arranged on the lower end face of the mounting frame (14).

3. Gear shaper for oil injection pump gear machining according to claim 2, characterized in that the sleeve (7) has a cylindrical shape with an open lower end; an output shaft of the hydraulic cylinder (6) penetrates through the center position of the upper bottom surface of the sleeve (7).

4. The gear shaping machine for oil injection pump gear machining according to claim 1, characterized in that a clamp (9) is rotatably mounted on the workbench (2), a second rotating assembly is further mounted on the workbench (2), and a rack (16) matched with the second rotating assembly is mounted on an output shaft of the hydraulic cylinder (6).

5. The gear shaper for oil injection pump gear machining according to claim 4, characterized in that a round table (20) is mounted on the workbench (2); the round table (20) consists of an upper round table, a lower round table and a support column; the upper round table and the lower round table are fixedly connected through a support column, the upper surface of the upper round table is in running fit with the lower surface of the clamp (9), and the lower surface of the upper round table is fixedly connected with the upper surface of the workbench (2); the support column passes through the workbench (2) and is fixedly connected with the workbench (2); the upper surface of the lower round table is fixedly connected with the lower surface of the workbench (2).

6. The gear shaping machine for oil injection pump gear machining according to claim 5, wherein the second rotating assembly comprises a first rotating rod (19) penetrating through the support column and in rotating fit with the support column, and the upper end surface of the first rotating rod (19) is fixedly connected with the center position of the lower surface of the clamp (9); the automatic rotary table is characterized in that a first bevel gear (21) is fixedly connected to the lower end face of the first rotary rod (19), a second fixing seat (29) and a first fixing seat (23) are fixedly arranged on the workbench (2), a second rotary rod (24) is arranged on the first fixing seat (23) in a damping rotation mode, a second bevel gear (22) meshed with the first bevel gear (21) is fixedly arranged at one end of the second rotary rod (24), a third bevel gear (25) is fixedly arranged at the other end of the second rotary rod (24), a rotary shaft (28) is rotatably arranged on the second fixing seat (29), a unidirectional gear (27) matched with the rack (16) is fixedly arranged at one end of the rotary shaft (28), and a fourth bevel gear (26) meshed with the third bevel gear (25) is fixedly arranged at the other end of the rotary shaft (28).

7. Gear shaper for oil injection pump gear machining according to claim 1, characterized in that the right side of the frame (1) is fixedly provided with a first motor (10); the output end of the first motor (10) is fixedly connected with a screw rod (3), and the screw rod (3) is rotationally connected to the frame (1); a movable plate (11) is fixedly arranged on the lower surface of the workbench (2), and a threaded hole is formed in the movable plate (11); the screw rod (3) is in threaded connection with a threaded hole on the moving plate (11).

8. The gear shaping machine for oil injection pump gear machining according to claim 1, wherein a sliding rail along the moving direction of the workbench (2) is fixedly arranged on the frame (1), a sliding groove is formed in the lower end face of the workbench (2), and the sliding groove is in sliding fit with the sliding rail.