Automatic feed broaching machine

Abstract

The application relates to an automatic feeding broaching machine, which comprises a bed body part, the upper surface of the bed body part is provided with a large cover and a column part, the upper part of the column part is provided with a middle broach mechanism, the lower part of the column part is provided with a lower clamping assembly, the upper clamping assembly and a jig are slidably connected to the column part, the bed body part comprises a chip removal machine and a water tank, and the chip removal machine is fixed to the side wall of the water tank. The automatic feeding broaching machine can complete large-depth keyway broaching by using one broach, the broach of different specifications does not need to be replaced, the broach specification reserve amount is effectively reduced, the frequency of manual tool changing is reduced, the broaching machining efficiency is greatly improved, positioning errors generated in the tool changing process are reduced, the feeding distance of an electric cylinder is adjusted, the broaching depth required by different workpieces is accurately matched, the keyway machining requirements of gears of various specifications are met, the jig does not need to be additionally replaced or the core structure does not need to be adjusted, and the machining cost is reduced.

Description

Technical Field

[0001] This invention relates to the field of broaching technology, specifically to an automatic feed broaching machine. Background Technology

[0002] With the continuous upgrading of the manufacturing industry, the requirements for machining accuracy and process stability of large gear workpieces are constantly increasing. In the keyway broaching process of large gear workpieces, deep keyways cannot be formed in a single broaching operation due to the large cutting allowance and the limitations of broaching machine tension and broach bearing capacity. If a single deep broaching process is forcibly adopted, it will not only cause the broach to wear faster and shorten its service life, but also cause workpiece deformation. At the same time, it will affect the stability of broaching machine operation, resulting in problems such as keyway dimensional deviation and poor surface quality, which cannot meet the process requirements of automated production.

[0003] In existing technologies, broaching of deep keyways typically involves changing broaches of different specifications in multiple stages. This method requires a stock of broaches of various specifications and involves frequent manual tool changes, which not only increases equipment investment and labor costs but also introduces positioning errors during tool changes, affecting the machining accuracy of the keyway. Furthermore, existing broaching machines have fixed workpiece feed positions, making it impossible to flexibly adjust the feed distance according to the broaching depth requirements, resulting in poor adaptability. In addition, a large amount of iron filings adhere to the broach surface after broaching, and existing cleaning methods often involve a separate cleaning process, which is cumbersome, time-consuming, and the iron filings can affect the quality of subsequent broaching operations. Based on the aforementioned shortcomings of existing technologies, an automatic feed broaching machine is proposed. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides an automatic feed broaching machine, which has advantages such as single-tool deep keyway broaching, adjustable feed distance, and convenient broach cleaning, thus solving the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an automatic feed broaching machine, comprising a bed component, wherein a large cover and a column component are provided on the upper surface of the bed component, a centrally located tool lifting mechanism is provided on the upper part of the column component, a lower clamping assembly is provided on the lower part of the column component, and an upper clamping assembly and a fixture are slidably connected to the column component.

[0006] The bed component includes a chip conveyor and a water tank. The chip conveyor is fixed to the side wall of the water tank, and the column component is set on the upper surface of the water tank.

[0007] The column component includes a column, a main motor, a coupling, a lead screw a, and a guide rail slider a. The output shaft of the main motor is connected to the top of the lead screw a via the coupling. The guide rail slider a is symmetrically slidably connected to both sides of the column. The upper clamping assembly and the fixture are both fixed on the guide rail slider a. The lead screw a passes through the column. The lead screw a is threadedly engaged with the lead screw nut a. A nut seat is fixed to the outside of the lead screw nut a. The nut seat is fixedly connected to the guide rail slider a. The lead screw nut a is rotatably connected to the outside of the lead screw a.

[0008] The centrally located knife-lifting mechanism is fixed to the top of the column. The centrally located knife-lifting mechanism includes a knife-lifting motor, a lead screw b, a synchronous pulley a, a synchronous belt, and a synchronous pulley b. The output shaft of the knife-lifting motor is locked and fixed to the synchronous pulley a. The top of the lead screw b is fixedly connected to the synchronous pulley b. The synchronous belt is movably sleeved on the outside of the synchronous pulley a and the synchronous pulley b. The lower end of the lead screw b is connected to the upper clamping assembly for transmission.

[0009] The upper clamping assembly includes an upper clamping seat, a cylinder a, a gripping body a, and a gripping pin a. The upper clamping seat is fixed to the upper surface of the guide rail slider a. The cylinder a is fixed below the upper clamping seat, and the output end of the cylinder a is connected to the gripping body a for transmission. The gripping pin a is fixed inside the gripping body a.

[0010] The lower clamping assembly includes a lower clamping seat, a cylinder d, a tool gripping body b, and a tool gripping pin b. The lower clamping seat is fixed to the lower part of the column, and the cylinder d is fixed on the lower clamping seat. The output end of the cylinder d is connected to the tool gripping body b. The tool gripping pin b is fixed inside the tool gripping body b. The cylinder d drives the tool gripping body b and the tool gripping pin b to support the lower end of the positioning keyway puller. The upper clamping assembly cooperates with the lower clamping assembly to clamp and fix the keyway puller.

[0011] The fixture includes a worktable, an electric cylinder, a pneumatic cylinder c, a pressure plate, a push plate, a pneumatic cylinder b, a brush, a positioning mandrel, and a workpiece. The worktable is fixed on the upper surface of the guide rail slider a. The electric cylinder is fixed on the worktable. A push plate is fixed to the output end of the electric cylinder. The pneumatic cylinder c is fixed to the push plate. A pressure plate is fixed to the output end of the pneumatic cylinder c. The pressure plate presses the workpiece fitted on the positioning mandrel. The pneumatic cylinder b is fixed to the front side of the worktable. A brush is fixed to the output end of the pneumatic cylinder b.

[0012] Furthermore, the bed component also includes feet, which are fixed to the four corners of the lower surface of the water tank.

[0013] Furthermore, the column component also includes a lead screw tailstock rotatably connected to the outer side of the bottom end of the lead screw a. A tailstock adjusting shim is provided between the lead screw tailstock and the column. A tailstock end cap is fixed to the lower end of the lead screw tailstock. From bottom to top, the lead screw tailstock is sequentially equipped with a locking nut a, a tailstock nut washer, a bearing a, a large spacer, a small spacer, a skeleton oil seal a, and a steel strip flange b. A main bearing cover is fixed to the upper end of the column. A locking nut b and a bearing b are sequentially assembled inside the main bearing cover. A skeleton oil seal b is fixed to the inner side of the main bearing cover. A steel strip flange a is fixed to the lower end of the column. A protective cover seat pad is fixed to the nut seat. A nut seat shim is fixed to the protective cover seat pad. A nut seat flat key is embedded and fixed in the middle of the nut seat. A side top is provided on the side of the guide rail slider a. Column pressure blocks and card seat positioning flat keys are fixed to the column.

[0014] Furthermore, the centrally located lifting mechanism also includes a motor plate fixed to the top of the column. The motor plate is fixed with a motor base, a bearing base, and a stop block a. The stop block b is fixed to the motor base. The lifting motor is fixed to the motor plate via a motor mounting plate. The synchronous pulley a is locked to the outside of the lifting motor output shaft via a tensioning sleeve. From top to bottom, the lead screw b is sequentially fixed with a connecting plate on the upper cover, a synchronous belt cover, a protective cover, a protective cover mounting block, a lubrication cover, a lead screw nut b, a connecting shaft, a skeleton oil seal c, a bearing c, an outer spacer, a locking cap spacer, a locking nut, and a connecting block. A top cover is fixed to the lower side of the protective cover mounting block, and a protective cover baffle is provided on the upper side of the top cover. A side observation glass is fixed to the side of the motor base, and a sensor a is fixed to the motor plate.

[0015] Furthermore, the upper clamping assembly also includes a transition pad fixed to the lower surface of the upper clamping seat. The cylinder a is fixed on the transition pad, and the output shaft of the cylinder a is connected to the gripper body a through a floating joint a. The upper clamping seat is fixed with a limit pin, an adjusting nut a, and an adjusting nut b from top to bottom. A sleeve a is fitted on the outer side of the gripper body a. Connecting side plates a are fixed on both sides of the sleeve a. A connecting plate a is fixed between the two connecting side plates a. A sensor seat is fixed on the upper clamping seat, and a sensor b is fixed on the sensor seat.

[0016] Furthermore, the lower clamping assembly also includes an anti-collision base and an anti-collision post fixed to the upper surface of the lower clamping seat. The gripper body b is positioned and fixed on the lower clamping seat by a positioning sleeve. A sleeve b is fitted on the outer side of the gripper body b. Connecting side plates b are fixed on both sides of the sleeve b. The cylinder d is fixed on the lower clamping seat by a cylinder mounting plate. The outer side of the output shaft of the cylinder d is connected to the gripper body b in sequence through a floating joint d and a connecting plate b. A fixing block and a positioning pin are also fixed on the lower clamping seat.

[0017] Furthermore, the fixture also includes a linear guide fixing seat, a sliding plate, a guide rail stop a, a guide rail slider b, a guide rail pad, a cable chain bracket, an air pipe bracket, a cover plate, a water distribution block bracket, a brush cylinder fixing plate, a brush cylinder guard, a clamping cylinder guard, a chip flushing water pipe, an electric cylinder fixing seat, a cable chain, a side water distribution block, a front left water spray block, a clamping pad, a cylinder head, a water spray pipe, a guide rail slider c, a guide rail stop b, a floating joint b, a cylinder connecting plate, a brush cylinder push plate, a positioning plate, a front right water spray block, a front water distribution block, a floating joint c, a floating joint seat, an air blowing block, a gasket fixing block, a gasket, a T-shaped brush seat, a brush pressure plate, a brush fixing plate, a gear eccentric sleeve, a reference metal, a chip scraper, a slide base, and a positioning sleeve.

[0018] Furthermore, a brush cylinder fixing plate is fixed to the front side of the workbench, a linear guide fixing seat is fixed to the front side of the brush cylinder fixing plate, a front left water spray block is fixed to the front left side of the workbench, an electric cylinder fixing seat is fixed to the right side of the linear guide fixing seat, a front right water spray block is fixed to the right side of the electric cylinder fixing seat, a front water distribution block is fixed to the front side of the electric cylinder fixing seat, the electric cylinder is on the electric cylinder fixing seat, and the output end of the electric cylinder is connected to a push plate through a floating connector c and a floating connector seat. Guide rail pads are fixed on the workbench and the linear guide fixing seat.

[0019] Furthermore, a guide rail slider b and a guide rail stop block a are fixed on the guide rail pad block. The push plate is fixed on the guide rail slider b. Pressing pads are fixed on both sides of the push plate. Cylinder c is equipped with a cylinder head and a pressing cylinder cover. The outside of cylinder b is covered with a brush cylinder cover. The output shaft of cylinder b is connected to a brush cylinder push plate through a floating joint b and a cylinder connecting plate. Two brush pressure plates are fixed on the brush cylinder push plate. A brush fixing plate is fixed between the two brush pressure plates. A T-shaped brush seat is fixed on the brush fixing plate. The brush is fixed on the T-shaped brush seat. A water spray pipe is fixed on the brush cylinder fixing plate. The front left water spray block and the front right water spray block are connected to a chip flushing water pipe. A drag chain bracket and a water distribution block bracket are fixed on the left side of the workbench.

[0020] Furthermore, a cable chain is arranged on the cable chain bracket, the cable chain is connected to the air pipe bracket, a cover plate is fixed on the left side of the air pipe bracket, a side water distribution block is fixed on the water distribution block bracket, a scraper and an air blowing block are fixed on the worktable, a slide base and a slide plate are fixed in the middle of the worktable, a shim fixing block is fixed on the slide base, the shim fixing block locks the shim, a reference metal is fixed on the worktable, a gear eccentric sleeve is locked on the reference metal, and the positioning mandrel is fixed on the gear eccentric sleeve.

[0021] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0022] This automatic feed broaching machine can complete deep keyway broaching with a single broach, eliminating the need to change multiple broaches of different specifications. This effectively reduces the reserve of broaches of various specifications, lowers the frequency of manual tool changes, and significantly improves broaching efficiency. It also reduces positioning errors during tool changes. By adjusting the feed distance of the electric cylinder, it can precisely adapt to the broaching depth required by different workpieces, meeting the keyway machining needs of various gear workpieces. No additional fixture changes or core structure adjustments are required, reducing processing costs. During the broach reset process after broaching, the control cylinder b pushes the brush directly below the broach. As the upper clamping assembly lifts the broach, the brush can fully contact the broach surface, simultaneously cleaning the metal filings. No separate cleaning process is needed, saving time and labor. The overall structure of the equipment is simple and compact, significantly reducing installation space requirements and facilitating placement in limited workshop spaces. Attached Figure Description

[0023] Figures 1-2 This is a schematic diagram of the structure of the present invention;

[0024] Figures 3-4 This is a schematic diagram of the bed components of the present invention;

[0025] Figures 5-6 This is a schematic diagram of the column component structure of the present invention;

[0026] Figures 7-9 This is a schematic diagram of the centrally located blade lifting mechanism of the present invention;

[0027] Figures 10-11 This is a schematic diagram of the upper card slot assembly structure of the present invention;

[0028] Figures 12-15 This is a schematic diagram of the fixture structure of the present invention;

[0029] Figures 16-19 This is a schematic diagram of the lower card slot assembly structure of the present invention.

[0030] In the diagram: 1. Bed assembly, 1-1. Chip conveyor, 1-2. Foot, 1-3. Water tank, 2. Large cover, 3. Column assembly, 3-1. Main motor, 3-2. Coupling, 3-3. Main bearing cover, 3-4. Steel strip flange a, 3-5. Lead screw a, 3-6. Guide rail slider a, 3-7. Column pressure block, 3-8. Steel strip flange b, 3-9. Protective cover seat pad, 3-10. Nut seat, 3-11. Side top, 3-12. Card slot positioning key, 3-13. Tailstock end cover, 3-14. Tailstock adjusting shim, 3-15. Lead screw tailstock, 3-16. Nut seat key, 3-17. Nut seat shim, 3-18. Locking nut a, 3-19. Tailstock nut washer, 3-20. Large spacer, 3-21. Lead screw nut a, 3-22. Bearing a, 3-23. Small spacer, 3-24. 3-25 Oil seal a, 3-26 Bearing b, 3-27 Locking nut b, 3-28 Column, 4 Center-mounted knife lifting mechanism, 4-1 Motor plate, 4-2 Side observation glass, 4-3 Motor mounting plate, 4-4 Protective cover edge, 4-5 Top cover, 4-6 Synchronous belt cover, 4-7 Upper connecting plate of the cover, 4-8 Lead screw b, 4-9 Knife lifting motor, 4-10 Protective cover, 4-11 Protective cover mounting block, 4-12 Sensor a, 4-13 Connecting block, 4-14 Connecting shaft, 4-15 Motor base, 4-16 Synchronous belt pulley a, 4-17 Synchronous belt, 4-18 Synchronous belt pulley b, 4-19 Lubrication cover, 4-20 Lead screw nut b, 4-21 Bearing seat, 4-22 Oil seal c, 4-23 Bearing c, 4- 24 Outer spacer ring, 4-25 Locking cap spacer ring, 4-26 Locking nut, 4-27 Expansion sleeve, 4-28 Abutment block a, 4-29 Abutment block b, 5 Upper clamping assembly, 5-1 Clamping seat, 5-2 Sensor b, 5-3 Sensor seat, 5-4 Adjusting nut a, 5-5 Adjusting nut b, 5-6 Transition pad, 5-7 Gripper body a, 5-8 Cylinder a, 5-9 Connecting side plate a, 5-10 Gripper pin a, 5-11 Connecting plate a, 5-12 Floating joint a, 5-13 Sleeve a, 5-14 Limiting pin, 6 Fixture, 6-1 Linear rail fixing seat, 6-2 Slide plate, 6-3 Guide rail stop block a, 6-4 Guide rail slider b, 6-5 Guide rail pad block, 6-6 Drag chain bracket, 6-7 Air pipe bracket, 6-8 Cover plate, 6-9 Water divider bracket 6-10 Brush cylinder fixing plate, 6-11 Cylinder b, 6-12 Brush cylinder guard, 6-13 Clamping cylinder guard, 6-14 Pressure plate, 6-15 Chip flushing water pipe, 6-16 Electric cylinder, 6-17 Electric cylinder fixing seat, 6-18 Cable chain, 6-19 Side water distribution block, 6-20 Front left water spray block, 6-21 Clamping pad, 6-22 Cylinder c, 6-23 Cylinder cover, 6-24 Water spray pipe, 6-25 Worktable, 6-26 Guide rail slider c, 6-27 Guide rail stop block b, 6-28 Floating joint b, 6-29 Cylinder connecting plate, 6-30 Brush cylinder push plate, 6-31 Positioning plate, 6-32 Front right water spray block, 6-33 Front water distribution block, 6-34 Floating joint c, 6-35 Floating joint seat, 6-36 Air blowing block.6-37 Gasket fixing block, 6-38 Gasket, 6-39 Brush, 6-40 T-type brush holder, 6-41 Keyway broach, 6-42 Brush pressure plate, 6-43 Brush fixing plate, 6-44 Gear eccentric sleeve, 6-45 Base metal, 6-46 Scraper plate, 6-47 Push plate, 6-48 Slide base, 6-49 Positioning sleeve, 6-50 Positioning mandrel, 6-51 Workpiece, 7 Lower clamping assembly, 7-1 Lower clamping seat, 7-2 Anti-collision base, 7-3 Anti-collision post, 7-4 Fixing block, 7-5 Gripper body b, 7-6 Sleeve b, 7-7 Connecting plate b, 7-8 Floating joint d, 7-9 Cylinder d, 7-10 Connecting side plate b, 7-11 Cylinder mounting plate, 7-12 Positioning sleeve, 7-13 Gripper pin b, 7-14 Positioning pin. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] Please see Figures 1-2 An automatic feed broaching machine in this embodiment includes a bed component 1. The upper surface of the bed component 1 is provided with a large cover 2 and a column component 3. The upper part of the column component 3 is provided with a centrally located tool lifting mechanism 4. The lower part of the column component 3 is provided with a lower clamping assembly 7. The upper clamping assembly 5 and a fixture 6 are slidably connected to the column component 3.

[0033] In this embodiment, the bed component 1 includes a chip conveyor 1-1 and a water tank 1-3. The chip conveyor 1-1 is fixed to the side wall of the water tank 1-3, and the column component 3 is disposed on the upper surface of the water tank 1-3.

[0034] Please see Figures 3-19 The column component 3 includes a column 3-28, a main motor 3-1, a coupling 3-2, a lead screw a3-5, and a guide rail slider a3-6. The output shaft of the main motor 3-1 is connected to the top of the lead screw a3-5 via the coupling 3-2. The guide rail slider a3-6 is symmetrically slidably connected to both sides of the column 3-28. The upper clamping assembly 5 and the fixture 6 are both fixed on the guide rail slider a3-6. The lead screw a3-5 passes through the column 3-28 and is threadedly engaged with the lead screw nut a3-21. A nut seat 3-10 is fixed to the outside of the lead screw nut a3-21. The nut seat 3-10 is fixedly connected to the guide rail slider a3-6. The lead screw nut a3-21 is rotatably connected to the outside of the lead screw a3-5.

[0035] The centrally mounted knife-lifting mechanism 4 is fixed to the top of the column 3-28. The centrally mounted knife-lifting mechanism 4 includes a knife-lifting motor 4-9, a lead screw b4-8, a synchronous pulley a4-16, a synchronous belt 4-17, and a synchronous pulley b4-18. The output shaft of the knife-lifting motor 4-9 is locked and fixed to the synchronous pulley a4-16. The top of the lead screw b4-8 is fixedly connected to the synchronous pulley b4-18. The synchronous belt 4-17 is movably sleeved on the outside of the synchronous pulleys a4-16 and b4-18. The lower end of the lead screw b4-8 is connected to the upper clamping assembly 5 for transmission.

[0036] The upper clamping assembly 5 includes an upper clamping seat 5-1, a cylinder a5-8, a gripper body a5-7, and a gripper pin a5-10. The upper clamping seat 5-1 is fixed on the upper surface of the guide rail slider a3-6, and the cylinder a5-8 is fixed below the upper clamping seat 5-1. The output end of the cylinder a5-8 is connected to the gripper body a5-7 for transmission. The gripper pin a5-10 is fixed inside the gripper body a5-7.

[0037] The lower clamping assembly 7 includes a lower clamping seat 7-1, a cylinder d7-9, a tool gripping body b7-5, and a tool gripping pin b7-13. The lower clamping seat 7-1 is fixed to the lower part of the column 3-28, and the cylinder d7-9 is fixed on the lower clamping seat 7-1. The output end of the cylinder d7-9 is connected to the tool gripping body b7-5 for transmission. The tool gripping pin b7-13 is fixed inside the tool gripping body b7-5. The cylinder d7-9 drives the tool gripping body b7-5 and the tool gripping pin b7-13 to support the lower end of the positioning keyway puller 6-41. The upper clamping assembly 5 cooperates with the lower clamping assembly 7 to clamp and fix the keyway puller 6-41.

[0038] The fixture 6 includes a worktable 6-25, an electric cylinder 6-16, a pneumatic cylinder c6-22, a pressure plate 6-14, a push plate 6-47, a pneumatic cylinder b6-11, a brush 6-39, a positioning mandrel 6-50, and a workpiece 6-51. The worktable 6-25 is fixed on the upper surface of the guide rail slider a3-6. The electric cylinder 6-16 is fixed on the worktable 6-25. The output end of the electric cylinder 6-16 is fixed with the push plate 6-47. The pneumatic cylinder c6-22 is fixed on the push plate 6-47. The output end of the pneumatic cylinder c6-22 is fixed with the pressure plate 6-14. The pressure plate 6-14 presses the workpiece 6-51, which is fitted onto the positioning mandrel 6-50. The pneumatic cylinder b6-11 is fixed on the front side of the worktable 6-25. The output end of the pneumatic cylinder b6-11 is fixed with the brush 6-39.

[0039] The bed component 1 also includes feet 1-2, which are fixed to the four corners of the lower surface of the water tank 1-3.

[0040] The column assembly 3 also includes a lead screw tailstock 3-15 rotatably connected to the outer side of the bottom end of the lead screw a3-5. A tailstock adjusting shim 3-14 is placed between the lead screw tailstock 3-15 and the column 3-28. A tailstock end cap 3-13 is fixed to the lower end of the lead screw tailstock 3-15. Inside the lead screw tailstock 3-15, from bottom to top, are assembled a locking nut a3-18, a tailstock nut washer 3-19, a bearing a3-22, a large spacer 3-20, a small spacer 3-23, a skeleton oil seal a3-24, and a steel strip flange b3-8. A main bearing cover 3-3 is fixed to the upper end of the column 3-28. Locking nuts b3-26 and bearings b3-25 are sequentially assembled inside the pressure cover 3-3. A skeleton oil seal b3-27 is fixed inside the main bearing cover 3-3. A steel strip flange a3-4 is fixed at the lower end of the column 3-28. A protective cover seat pad 3-9 is fixed on the nut seat 3-10. A nut seat shim 3-17 is fixed on the protective cover seat pad 3-9. A nut seat flat key 3-16 is embedded and fixed in the middle of the nut seat 3-10. A side top 3-11 is provided on the side of the guide rail slider a3-6. A column pressure block 3-7 and a card seat positioning flat key 3-12 are fixed on the column 3-28.

[0041] The centrally mounted knife-lifting mechanism 4 also includes a motor plate 4-1 fixed to the top of the column 3-28. The motor plate 4-1 is fixed with a motor base 4-15, a bearing seat 4-21, and a stop block a4-28. A stop block b4-29 is fixed to the motor base 4-15. The knife-lifting motor 4-9 is fixed to the motor plate 4-1 via a motor mounting plate 4-3. The synchronous belt pulley a4-16 is locked to the outside of the output shaft of the knife-lifting motor 4-9 via a tensioning sleeve 4-27. The lead screw b4-8 is sequentially fixed from top to bottom with a connecting plate 4-7 on the upper cover, a synchronous belt cover 4-28, and a connecting plate 4-7 on the upper cover, and a synchronous belt cover 4-28. 6. Protective cover 4-10, protective cover mounting block 4-11, lubrication cover 4-19, lead screw nut b4-20, connecting shaft 4-14, skeleton oil seal c4-22, bearing c4-23, outer spacer 4-24, locking cap spacer 4-25, locking nut 4-26 and connecting block 4-13. A top cover 4-5 is fixed to the lower side of the protective cover mounting block 4-11. A protective cover edge 4-4 is provided on the upper side of the top cover 4-5. A side observation glass 4-2 is fixed to the side of the motor base 4-15. A sensor a4-12 is fixed on the motor plate 4-1.

[0042] The upper clamping assembly 5 also includes a transition pad 5-6 fixed to the lower surface of the upper clamping seat 5-1. The cylinder a5-8 is fixed on the transition pad 5-6. The output shaft of the cylinder a5-8 is connected to the gripper body a5-7 through a floating joint a5-12. The upper clamping seat 5-1 is fixed with a limit pin 5-14, an adjusting nut a5-4, and an adjusting nut b5-5 from top to bottom. A sleeve a5-13 is fitted on the outside of the gripper body a5-7. Connecting side plates a5-9 are fixed on both sides of the sleeve a5-13. A connecting plate a5-11 is fixed between the two connecting side plates a5-9. A sensor seat 5-3 is fixed on the upper clamping seat 5-1. A sensor b5-2 is fixed on the sensor seat 5-3.

[0043] The lower clamping assembly 7 also includes an anti-collision base 7-2 and an anti-collision post 7-3 fixed on the upper surface of the lower clamping seat 7-1. The gripper body b7-5 is positioned and fixed on the lower clamping seat 7-1 by a positioning sleeve 7-12. A sleeve b7-6 is fitted on the outside of the gripper body b7-5. Connecting side plates b7-10 are fixed on both sides of the sleeve b7-6. The cylinder d7-9 is fixed on the lower clamping seat 7-1 by a cylinder mounting plate 7-11. The outside of the output shaft of the cylinder d7-9 is connected to the gripper body b7-5 in sequence through a floating joint d7-8 and a connecting plate b7-7. A fixing block 7-4 and a positioning pin 7-14 are also fixed on the lower clamping seat 7-1.

[0044] Fixture 6 also includes a linear guide fixing seat 6-1, a sliding plate 6-2, a guide rail stop a 6-3, a guide rail slider b 6-4, a guide rail pad 6-5, a cable chain bracket 6-6, an air pipe bracket 6-7, a cover plate 6-8, a water distribution block bracket 6-9, a brush cylinder fixing plate 6-10, a brush cylinder guard 6-12, a clamping cylinder guard 6-13, a chip flushing water pipe 6-15, an electric cylinder fixing seat 6-17, a cable chain 6-18, a side water distribution block 6-19, a front left water spray block 6-20, a clamping pad 6-21, a cylinder head 6-23, a water spray pipe 6-24, and a guide rail slider c6. -26, guide rail stop b6-27, floating joint b6-28, cylinder connecting plate 6-29, brush cylinder push plate 6-30, positioning plate 6-31, front right spray block 6-32, front water distribution block 6-33, floating joint c6-34, floating joint seat 6-35, air blowing block 6-36, gasket fixing block 6-37, gasket 6-38, T-shaped brush seat 6-40, brush pressure plate 6-42, brush fixing plate 6-43, gear eccentric sleeve 6-44, base metal 6-45, scraper plate 6-46, slide seat 6-48 and positioning sleeve 6-49.

[0045] A brush cylinder fixing plate 6-10 is fixed to the front side of the workbench 6-25. A linear guide fixing seat 6-1 is fixed to the front side of the brush cylinder fixing plate 6-10. A front left water spray block 6-20 is fixed to the front left side of the workbench 6-25. An electric cylinder fixing seat 6-17 is fixed to the right side of the linear guide fixing seat 6-11. A front right water spray block 6-32 is fixed to the right side of the electric cylinder fixing seat 6-17. A front water distribution block 6-33 is fixed to the front side of the electric cylinder fixing seat 6-17. An electric cylinder 6-16 is on the electric cylinder fixing seat 6-17. The output end of the electric cylinder 6-16 is connected to a push plate 6-47 through a floating connector c6-34 and a floating connector seat 6-35. A guide rail pad 6-5 is fixed on the workbench 6-25 and the linear guide fixing seat 6-1.

[0046] The gear workpiece 6-51 is manually placed on the reference metal 6-45. The workpiece 6-51 is initially positioned by the gear eccentric sleeve 6-44 and the positioning mandrel 6-50. Then, the control cylinder c6-22 is activated, and its output shaft drives the pressure plate 6-14 to move downward, pressing and fixing the gear workpiece 6-51 on the reference metal 6-45. After pressing, the control cylinder 6-16 extends and pushes the push plate 6-47 to move the workpiece 6-51 to the designated broaching position a, completing the clamping and positioning of the workpiece 6-51. The broach is lowered and locked, and the broaching motor 4-9 in the central broaching mechanism 4 is started. The broaching motor 4-9 drives the lead screw b4-8 to rotate through the synchronous pulley a4-16, synchronous belt 4-17, and synchronous pulley b4-18, which in turn drives the upper clamping assembly 5 to move downward along the linear guide of the column component 3. The keyway broach 6-41 descends synchronously with the upper clamping assembly 5.

[0047] Guide rail pad 6-5 is fixed with guide rail slider b6-4 and guide rail stop a6-3. Push plate 6-47 is fixed on guide rail slider b6-4. Pressing pads 6-21 are fixed on both sides of push plate 6-47. Cylinder c6-22 is equipped with cylinder head 6-23 and pressing cylinder cover 6-13. Cylinder b6-11 is covered with brush cylinder cover 6-12. The output shaft of cylinder b6-11 is connected to brush cylinder push plate 6-30 through floating joint b6-28 and cylinder connecting plate 6-29. Two brush pressure plates 6-42 are fixed on the push plate 6-30. A brush fixing plate 6-43 is fixed between the two brush pressure plates 6-42. A T-shaped brush holder 6-40 is fixed on the brush fixing plate 6-43. The brush 6-39 is fixed on the T-shaped brush holder 6-40. A water spray pipe 6-24 is fixed on the brush cylinder fixing plate 6-10. The front left water spray block 6-20 and the front right water spray block 6-32 are connected to the chip flushing water pipe 6-15. A drag chain bracket 6-6 and a water distribution block bracket 6-9 are fixed on the left side of the worktable 6-25.

[0048] Deep keyway broaching can be completed with a single broach, reducing the need for broach specifications and manual tool changes, thus improving efficiency. The position of the workpiece after broaching (6-51) is advanced can be flexibly controlled, and the feed distance can be adjusted to adapt to the required broaching depth. During the broach return process after broaching, the broach surface can be cleaned with a brush (6-39), saving time and facilitating maintenance. The simple and compact structure reduces installation space. Broaching can be achieved with a single broach, and the workpiece (6-51) can be precisely controlled to be pushed to the required broaching position for feed broaching, minimizing the impact on the quality of subsequent broaching operations.

[0049] A cable chain 6-18 is arranged on the cable chain bracket 6-6. The cable chain 6-18 is connected to the air pipe bracket 6-7. A cover plate 6-8 is fixed on the left side of the air pipe bracket 6-7. A side water divider block 6-19 is fixed on the water divider block bracket 6-9. A scraper 6-46 and an air blowing block 6-36 are fixed on the worktable 6-25. A slide base 6-48 and a slide plate 6-2 are fixed in the middle of the worktable 6-25. A gasket fixing block 6-37 is fixed on the slide base 6-48. Gasket fixing block 6-37 and locking gasket 6-38 are also present. A reference metal 6-45 is fixed on the worktable 6-25. A gear eccentric sleeve 6-44 is locked on the reference metal 6-45. A positioning mandrel 6-50 is fixed on the gear eccentric sleeve 6-44.

[0050] Until the bottom of the broach is in contact with the locking washer 6-38 on the fixture 6, the control cylinder d7-9 retracts, putting the gripper body b7-5 in a released state. The bottom of the broach smoothly enters the locking position of the gripper body b7-5. Then, the control cylinder d7-9 extends, locking the bottom of the broach onto the lower locking assembly 7 via the gripper pin b7-13. After the lower locking is completed, the control cylinder a5-8 retracts, releasing the upper locking assembly 5 from locking the top of the broach. At the same time, the central lifting mechanism 4 is controlled to move the upper locking mechanism. Assembly 5 moves to its initial position, and then the water spray pipe 6-24 is activated to continuously spray coolant to cool down the subsequent broaching process. After broaching and cycle reset, the main motor 3-1 in the column component 3 is activated. The main motor 3-1 drives the lead screw a3-5 to rotate through the coupling 3-2. The lead screw a3-5 drives the fixture 6 to move upward along the linear guide of the column component 3 through the lead screw nut a3-21. The workpiece 6-51 rises synchronously with the fixture 6, while the keyway broach 6-41 is locked and kept stationary by the lower clamping assembly 7.

[0051] In this embodiment, when clamping the broach, the control cylinder a5-8 retracts, releasing the gripper locking state of the upper clamping assembly 5. The keyway broach 6-41 is manually inserted into the corresponding position of the gripper body a5-7. After insertion, the control cylinder a5-8 extends, and the gripper pin a5-10 locks the keyway broach 6-41 onto the upper clamping assembly 5, completing the clamping and fixing of the broach. The workpiece 6-51 is clamped and positioned, and the control cylinder 6-16 retracts. The output end of the cylinder 6-16 drives the push plate 6-47 to move towards the side closer to the operator through the floating joint c6-34 and the floating joint seat 6-35, so that the fixture 6 is in the workpiece 6-51 clamping position.

[0052] It should be noted that during the upward movement of workpiece 6-51, the keyway broaching is completed through relative motion with the broach. After broaching to the preset endpoint, the electric cylinder 6-16 retracts, driving the push plate 6-47 to move. Simultaneously, the scraper plate 6-46 moves synchronously, pushing the iron chips accumulated on the upper surface of the slide plate 6-2 and the slide base 6-48 to the chip conveyor 1-1, where the chip conveyor 1-1 cleans the iron chips. Then, the control cylinder b6-11 extends, driving the brush cylinder push plate 6-30 to move, pushing the brush 6-39 to the middle position directly below the broach. Next, the control fixture 6 descends to the initial clamping position, while the central lifting mechanism 4 drives the upper clamping assembly 5 to descend, re-aligning the workpiece. The broach is gripped, i.e., the cylinder a5-8 is retracted, the broach tip is inserted into the gripper body a5-7, and then the cylinder a5-8 is extended to lock the broach. After the broach is locked, the upper clamping assembly 5 is raised. During the raising process, the brush 6-39 makes full contact with the broach surface to clean the iron filings attached to the broach surface. Then, the electric cylinder 6-16 is extended to push the workpiece 6-51 to the designated broaching position b. The above broaching, cleaning, and resetting steps are repeated until the keyway broaching of the workpiece 6-51 reaches the preset requirements. After the processing is completed, the pneumatic cylinders and electric cylinders are reset, and the processed workpiece 6-51 is manually removed, completing a complete broaching cycle.

[0053] The working principle of the above embodiments is as follows:

[0054] (1) Clamp the broach, control cylinder a5-8 to retract, release the gripper locking state of the upper clamping assembly 5, manually insert the keyway broach 6-41 into the corresponding position of the gripper body a5-7, after insertion, control cylinder a5-8 to extend, and through the clamping action of gripper pin a5-10, lock the keyway broach 6-41 onto the upper clamping assembly 5, completing the clamping and fixing of the broach, clamp and position the workpiece 6-51, control cylinder 6-16 to retract, the output end of cylinder 6-16 drives the push plate 6-47 to move towards the side closer to the operator through floating joint c6-34 and floating joint seat 6-35, so that the fixture 6 is positioned on the workpiece 6- At the clamping station 51, the gear workpiece 6-51 is manually placed on the reference metal 6-45. The workpiece 6-51 is initially positioned using the gear eccentric sleeve 6-44 and the positioning mandrel 6-50. Then, the control cylinder c6-22 actuates, its output shaft driving the pressure plate 6-14 downwards to press and fix the gear workpiece 6-51 onto the reference metal 6-45. After pressing, the control cylinder 6-16 extends, pushing the push plate 6-47 to move the workpiece 6-51 to the designated broaching position a, completing the clamping and positioning of workpiece 6-51. The broach is lowered and locked, and the broaching motor 4-9 in the centrally located broaching mechanism 4 is activated. 4-9 drives the lead screw b4-8 to rotate via synchronous pulleys a4-16, synchronous belt 4-17, and synchronous pulley b4-18, thereby causing the upper clamping assembly 5 to move downwards along the linear guide of the column component 3. The keyway broach 6-41 descends synchronously with the upper clamping assembly 5 until the bottom end of the broach is in contact with the shim 6-38 on the fixture 6. At this time, the control cylinder d7-9 retracts, putting the gripper body b7-5 in a released state, and the bottom end of the broach smoothly enters the clamping position of the gripper body b7-5. Then, the control cylinder d7-9 extends, locking the bottom end of the broach onto the lower clamping assembly 7 via the gripper pin b7-13. After the lower clamping is locked, the control cylinder... The cylinder a5-8 retracts, releasing the locking of the upper clamping assembly 5 to the top of the broach. At the same time, the central lifting mechanism 4 is controlled to move the upper clamping assembly 5 to the initial position. Then, the water spray pipe 6-24 is activated to continuously spray coolant to cool down the subsequent broaching process. After broaching and cycle reset, the main motor 3-1 in the column component 3 is activated. The main motor 3-1 drives the lead screw a3-5 to rotate through the coupling 3-2. The lead screw a3-5 drives the fixture 6 to move upward along the linear guide of the column component 3 through the lead screw nut a3-21. The workpiece 6-51 rises synchronously with the fixture 6, while the keyway broach 6-41 is locked and kept stationary by the lower clamping assembly 7.

[0055] (2) During the upward movement of workpiece 6-51, the keyway broaching is completed through the relative movement with the broach. After broaching to the preset endpoint, the electric cylinder 6-16 is retracted, and the push plate 6-47 is moved. At the same time, the scraper plate 6-46 moves synchronously, pushing the iron chips accumulated on the upper surface of the slide plate 6-2 and the slide table 6-48 to the chip conveyor 1-1. The chip conveyor 1-1 cleans up the iron chips. Then, the cylinder b6-11 is extended, and the brush cylinder push plate 6-30 is moved, pushing the brush 6-39 to the middle position directly below the broach. Then, the fixture 6 is lowered to the initial clamping position, and the central lifting mechanism 4 is lowered to drive the upper clamping assembly 5 to descend again. The broach is gripped by retracting cylinder a5-8, inserting the broach tip into the gripper body a5-7, and then extending cylinder a5-8 to lock the broach. After the broach is locked, the upper clamping assembly 5 is raised. During the raising process, brush 6-39 makes full contact with the broach surface to clean the iron filings attached to the broach surface. Then, electric cylinder 6-16 is extended to push the workpiece 6-51 to the designated broaching position b. The broaching, cleaning, and resetting steps are repeated until the broaching of the keyway on the workpiece meets the preset requirements. After the processing is completed, all cylinders and electric cylinders are reset, and the processed workpiece 6-51 is manually removed, completing one complete broaching cycle.

[0056] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0057] Although embodiments of the invention 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 to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic feed broaching machine, comprising a bed component (1), characterized in that: The upper surface of the bed component (1) is provided with a large cover (2) and a column component (3). The upper part of the column component (3) is provided with a centrally located lifting mechanism (4). The lower part of the column component (3) is provided with a lower locking assembly (7). The upper locking assembly (5) and a fixture (6) are slidably connected to the column component (3). The bed component (1) includes a chip conveyor (1-1) and a water tank (1-3). The chip conveyor (1-1) is fixed to the side wall of the water tank (1-3), and the column component (3) is set on the upper surface of the water tank (1-3). The column component (3) includes a column (3-28), a main motor (3-1), a coupling (3-2), a lead screw a (3-5), and a guide rail slider a (3-6). The output shaft of the main motor (3-1) is connected to the top of the lead screw a (3-5) via the coupling (3-2). The guide rail slider a (3-6) is symmetrically slidably connected to both sides of the column (3-28). The upper clamping assembly (5) and the fixture (6) are both fixed on the guide rail slider a (3-6). The lead screw a (3-5) passes through the column (3-28). The lead screw a (3-5) is threadedly engaged with the lead screw nut a (3-21). A nut seat (3-10) is fixed on the outside of the lead screw nut a (3-21). The nut seat (3-10) is fixedly connected to the guide rail slider a (3-6). The lead screw nut a (3-21) is rotatably connected to the outside of the lead screw a (3-5). The centrally mounted knife-lifting mechanism (4) is fixed at the top of the column (3-28). The centrally mounted knife-lifting mechanism (4) includes a knife-lifting motor (4-9), a lead screw (4-8), a synchronous pulley a (4-16), a synchronous belt (4-17), and a synchronous pulley b (4-18). The output shaft of the knife-lifting motor (4-9) is locked and fixed to the synchronous pulley a (4-16). The top of the lead screw b (4-8) is fixedly connected to the synchronous pulley b (4-18). The synchronous belt (4-17) is movably sleeved on the outside of the synchronous pulley a (4-16) and the synchronous pulley b (4-18). The lower end of the lead screw b (4-8) is connected to the upper clamping assembly (5) for transmission. The upper clamping assembly (5) includes an upper clamping seat (5-1), a cylinder a (5-8), a gripper body a (5-7), and a gripper pin a (5-10). The upper clamping seat (5-1) is fixed on the upper surface of the guide rail slider a (3-6). The cylinder a (5-8) is fixed below the upper clamping seat (5-1). The output end of the cylinder a (5-8) is connected to the gripper body a (5-7) in a transmission connection. The gripper pin a (5-10) is fixed inside the gripper body a (5-7). The lower clamping assembly (7) includes a lower clamping seat (7-1), a cylinder d (7-9), a gripping body b (7-5), and a gripping pin b (7-13). The lower clamping seat (7-1) is fixed to the lower part of the column (3-28), and the cylinder d (7-9) is fixed on the lower clamping seat (7-1). The output end of the cylinder d (7-9) is connected to the gripping body b (7-5) in a transmission connection. The gripping pin b (7-13) is fixed inside the gripping body b (7-5). The cylinder d (7-9) drives the gripping body b (7-5) and the gripping pin b (7-13) to support the lower end of the positioning keyway puller (6-41). The upper clamping assembly (5) cooperates with the lower clamping assembly (7) to clamp and fix the keyway puller (6-41). The fixture (6) includes a worktable (6-25), an electric cylinder (6-16), a pneumatic cylinder (6-22), a pressure plate (6-14), a push plate (6-47), a pneumatic cylinder (6-11), a brush (6-39), a positioning mandrel (6-50), and a workpiece (6-51). The worktable (6-25) is fixed on the upper surface of the guide rail slider a (3-6), the electric cylinder (6-16) is fixed on the worktable (6-25), and the electric cylinder (6-14) is fixed on the upper surface of the guide rail slider a (3-6). 6) A push plate (6-47) is fixed at the output end. The cylinder c (6-22) is fixed on the push plate (6-47). A pressure plate (6-14) is fixed at the output end of the cylinder c (6-22). The pressure plate (6-14) presses the workpiece (6-51) fitted on the positioning mandrel (6-50). The cylinder b (6-11) is fixed on the front side of the worktable (6-25). A brush (6-39) is fixed at the output end of the cylinder b (6-11).

2. The automatic feed broaching machine according to claim 1, characterized in that: The bed component (1) also includes feet (1-2), which are fixed at the four corners of the lower surface of the water tank (1-3).

3. The automatic feed broaching machine according to claim 1, characterized in that: The column component (3) further includes a lead screw tailstock (3-15) rotatably connected to the outer side of the bottom end of the lead screw a (3-5). A tailstock adjusting shim (3-14) is provided between the lead screw tailstock (3-15) and the column (3-28). A tailstock end cap (3-13) is fixed to the lower end of the lead screw tailstock (3-15). The lead screw tailstock (3-15) is equipped with, from bottom to top, a locking nut a (3-18), a tailstock nut washer (3-19), a bearing a (3-22), a large spacer (3-20), a small spacer (3-23), a skeleton oil seal a (3-24), and a steel strip flange b (3-8). A main bearing cover (3-3) is fixed to the upper end of the column (3-28). Locking nut b (3-26) and bearing b (3-25) are sequentially assembled inside the pressure cap (3-3). A skeleton oil seal b (3-27) is fixed inside the main bearing pressure cap (3-3). A steel strip flange a (3-4) is fixed at the lower end of the column (3-28). A protective cover seat pad (3-9) is fixed on the nut seat (3-10). A nut seat shim block (3-17) is fixed on the protective cover seat pad (3-9). A nut seat flat key (3-16) is embedded and fixed in the middle of the nut seat (3-10). A side top (3-11) is provided on the side of the guide rail slider a (3-6). A column pressure block (3-7) and a card seat positioning flat key (3-12) are fixed on the column (3-28).

4. The automatic feed broaching machine according to claim 1, characterized in that: The centrally located knife-lifting mechanism (4) also includes a motor plate (4-1) fixed to the top of the column (3-28). The motor plate (4-1) is fixed with a motor base (4-15), a bearing seat (4-21), and a stop block a (4-28). The stop block b (4-29) is fixed to the motor base (4-15). The knife-lifting motor (4-9) is fixed to the motor plate (4-1) via a motor mounting plate (4-3). The synchronous pulley a (4-16) is locked to the outside of the output shaft of the knife-lifting motor (4-9) via a shrink sleeve (4-27). The lead screw b (4-8) is sequentially fixed from top to bottom with a connecting plate (4-7) on the upper cover, a synchronous belt cover (4-28), and a connecting plate (4-29). 6) Protective cover (4-10), protective cover mounting block (4-11), lubrication cover (4-19), lead screw nut b (4-20), connecting shaft (4-14), skeleton oil seal c (4-22), bearing c (4-23), outer spacer (4-24), locking cap spacer (4-25), locking nut (4-26) and connecting block (4-13). The protective cover mounting block (4-11) is fixed with a top cover (4-5) on the lower side. The top cover (4-5) is provided with a protective cover edge (4-4) on the upper side. The motor base (4-15) is fixed with a side observation glass (4-2). The motor plate (4-1) is fixed with a sensor a (4-12).

5. An automatic feed broaching machine according to claim 1, characterized in that: The upper clamping assembly (5) also includes a transition pad (5-6) fixed on the lower surface of the upper clamping seat (5-1). The cylinder a (5-8) is fixed on the transition pad (5-6). The output shaft of the cylinder a (5-8) is connected to the gripper body a (5-7) through a floating joint a (5-12). The upper clamping seat (5-1) is fixed with a limit pin (5-14), an adjusting nut a (5-4), and an adjusting nut b (5-5) from top to bottom. A sleeve a (5-13) is fitted on the outside of the gripper body a (5-7). A connecting side plate a (5-9) is fixed on both sides of the sleeve a (5-13). A connecting plate a (5-11) is fixed between the two connecting side plates a (5-9). A sensor seat (5-3) is fixed on the upper clamping seat (5-1). A sensor b (5-2) is fixed on the sensor seat (5-3).

6. An automatic feed broaching machine according to claim 1, characterized in that: The lower clamping assembly (7) also includes an anti-collision base (7-2) and an anti-collision post (7-3) fixed on the upper surface of the lower clamping seat (7-1). The gripper body b (7-5) is fixed on the lower clamping seat (7-1) by a positioning sleeve (7-12). A sleeve b (7-6) is fitted on the outside of the gripper body b (7-5). Connecting side plates b (7-10) are fixed on both sides of the sleeve b (7-6). The cylinder d (7-9) is fixed on the lower clamping seat (7-1) by a cylinder mounting plate (7-11). The outer side of the output shaft of the cylinder d (7-9) is connected to the gripper body b (7-5) in sequence through a floating joint d (7-8) and a connecting plate b (7-7). A fixing block (7-4) and a positioning pin (7-14) are also fixed on the lower clamping seat (7-1).

7. An automatic feed broaching machine according to claim 1, characterized in that: The fixture (6) further includes a linear guide fixing seat (6-1), a sliding plate (6-2), a guide rail stop a (6-3), a guide rail slider b (6-4), a guide rail pad (6-5), a cable chain bracket (6-6), an air pipe bracket (6-7), a cover plate (6-8), a water distribution block bracket (6-9), a brush cylinder fixing plate (6-10), a brush cylinder guard (6-12), a clamping cylinder guard (6-13), a chip flushing water pipe (6-15), an electric cylinder fixing seat (6-17), a cable chain (6-18), a side water distribution block (6-19), a front left water spray block (6-20), a clamping pad (6-21), a cylinder head (6-23), a water spray pipe (6-24), and a guide rail slider c. (6-26), guide rail stop b (6-27), floating joint b (6-28), cylinder connecting plate (6-29), brush cylinder push plate (6-30), positioning plate (6-31), front right spray block (6-32), front water distribution block (6-33), floating joint c (6-34), floating joint seat (6-35), air blowing block (6-36), gasket fixing block (6-37), gasket (6-38), T-type brush seat (6-40), brush pressure plate (6-42), brush fixing plate (6-43), gear eccentric sleeve (6-44), base metal (6-45), scraper plate (6-46), slide seat (6-48) and positioning sleeve (6-49).

8. An automatic feed broaching machine according to claim 7, characterized in that: A brush cylinder fixing plate (6-10) is fixed to the front side of the workbench (6-25). A linear guide fixing seat (6-1) is fixed to the front side of the brush cylinder fixing plate (6-10). A front left water spray block (6-20) is fixed to the front left side of the workbench (6-25). An electric cylinder fixing seat (6-17) is fixed to the right side of the linear guide fixing seat (6-1). A front right water spray block (6-32) is fixed to the right side of the electric cylinder fixing seat (6-17). A front water distribution block (6-33) is fixed to the front side of the electric cylinder fixing seat (6-17). The electric cylinder (6-16) is on the electric cylinder fixing seat (6-17). The output end of the electric cylinder (6-16) is connected to a push plate (6-47) through a floating connector c (6-34) and a floating connector seat (6-35). A guide rail pad (6-5) is fixed on the workbench (6-25) and the linear guide fixing seat (6-1).

9. An automatic feed broaching machine according to claim 8, characterized in that: The guide rail pad (6-5) is fixed with a guide rail slider b (6-4) and a guide rail stop a (6-3). The push plate (6-47) is fixed on the guide rail slider b (6-4). A clamping pad (6-21) is fixed on both sides of the push plate (6-47). Each cylinder c (6-22) is equipped with a cylinder head (6-23) and a clamping cylinder cover (6-13). The cylinder b (6-11) is covered with a brush cylinder cover (6-12). The output shaft of the cylinder b (6-11) is connected to a brush cylinder push plate (6-30) via a floating joint b (6-28) and a cylinder connecting plate (6-29). The brush... Two brush pressure plates (6-42) are fixed on the cylinder push plate (6-30), and a brush fixing plate (6-43) is fixed between the two brush pressure plates (6-42). A T-shaped brush seat (6-40) is fixed on the brush fixing plate (6-43), and the brush (6-39) is fixed on the T-shaped brush seat (6-40). A water spray pipe (6-24) is fixed on the brush cylinder fixing plate (6-10). The front left water spray block (6-20) and the front right water spray block (6-32) are connected to the chip flushing water pipe (6-15). A drag chain bracket (6-6) and a water distribution block bracket (6-9) are fixed on the left side of the worktable (6-25).

10. An automatic feed broaching machine according to claim 9, characterized in that: A cable chain (6-18) is arranged on the cable chain bracket (6-6), and the cable chain (6-18) is connected to the air pipe bracket (6-7). A cover plate (6-8) is fixed on the left side of the air pipe bracket (6-7). A side water distribution block (6-19) is fixed on the water distribution block bracket (6-9). A scraper (6-46) and an air blowing block (6-36) are fixed on the workbench (6-25). The middle part of the workbench (6-25) is fixed with... There is a slide base (6-48) and a slide plate (6-2). A shim fixing block (6-37) is fixed on the slide base (6-48). The shim fixing block (6-37) locks the shim (6-38). A reference metal (6-45) is fixed on the worktable (6-25). A gear eccentric sleeve (6-44) is locked on the reference metal (6-45). The positioning mandrel (6-50) is fixed on the gear eccentric sleeve (6-44).

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