Adjustable horizontal hydraulic broaching machine

By designing the broaching frame, hydraulic rods, push plates, electric push rods, gears, and thread grooves in a horizontal hydraulic broaching machine, the angle adjustment and cooling of the broach are achieved, solving the problems of low efficiency and thermal expansion in the existing technology, improving machining accuracy and efficiency, and realizing the recycling and reuse of chips.

CN224073458UActive Publication Date: 2026-04-03TIANJIN GUANHUA TECHNOLOGY DEVELOPMENT CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-05
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

Existing horizontal hydraulic broaching machines cannot rotate and adjust the broach during use, resulting in low processing efficiency and ineffective cooling, which affects the broach's lifespan and processing accuracy.

Method used

The angle of the broach is adjusted by designing a broach frame, hydraulic rod, push plate, electric push rod, gear and threaded groove; and the broach is cooled and debris is collected by designing an output pump, pipe, nozzle, filter and magnetic plate.

Benefits of technology

It improves processing efficiency, reduces workpiece positioning and adjustment time, maintains the dimensional stability of the cutting tool, improves processing accuracy, and enables the recycling and reuse of chips.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of broaching machines, and discloses an adjustable horizontal hydraulic broaching machine which comprises a broaching machine frame, a hydraulic rod is fixedly connected to the middle of the left side of the broaching machine frame, the output end of the hydraulic rod penetrates through the broaching machine frame to be fixedly connected with a push plate, the right side of the push plate is rotationally connected with an installation block, and a gear is fixedly connected to the outer wall of the installation block. An electric push rod is fixedly connected to the rear side of the top of the push plate, a sliding block is fixedly connected to the output end of the electric push rod, a rack is fixedly connected to the right side of the bottom of the sliding block, and a broaching hole is formed in the upper middle end of the right side of the broaching machine frame. According to the utility model, the bed frame, the hydraulic rod, the push plate and the electric push rod are pulled; under the mutual cooperation of the sliding block, the rack, the mounting block, the gear and the threaded groove, the broach can be adjusted and rotated, the turning frequency of a workpiece can be reduced, meanwhile, the frequency of frequently pulling out the broach is reduced, the workpiece positioning and adjusting time is saved, and the overall machining efficiency is improved.
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Description

Technical Field

[0001] This utility model relates to the field of broaching technology, and in particular to an adjustable horizontal hydraulic broaching machine. Background Technology

[0002] A horizontal hydraulic broaching machine is a metal cutting machine tool mainly used for machining holes or keyways. Its key feature is that the workpiece remains stationary while the broach performs linear cutting motion. This machine tool has a horizontal structure, making it suitable for machining internal holes and cavities. The horizontally placed worktable enhances workpiece stability during machining, reducing vibration and swaying, and improving machining accuracy and surface quality.

[0003] A search revealed Chinese Patent Publication No. CN205571564U, which discloses a hydraulic broaching machine, including a frame, a slide rail, and a broach holder. The broach holder's sleeve is fitted onto the slide rail, and a detachable strap surrounds the slide rail between the sleeve and the sleeve, with the strap fitting snugly against the slide rail. In this invention, the strap inside the sleeve of the broach holder separates the sleeve from the slide rail, preventing direct contact. During the sliding of the broach holder along the slide rail, only the strap wears, not the sleeve. The strap only needs to be replaced according to its wear condition, thus reducing the maintenance cost of the hydraulic broaching machine.

[0004] However, in this application, the broach cannot be rotated and adjusted during use. When different angles need to be processed, the broach needs to be frequently pulled out and the workpiece readjusted, which greatly reduces processing efficiency and increases production costs. At the same time, the broach cannot be cooled during use, and the broach generates a lot of heat during use. This not only affects the service life of the broach, but also causes the hardness and strength of the broach to decrease, thereby affecting the processing accuracy and surface quality. Therefore, an adjustable horizontal hydraulic broaching machine is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides an adjustable horizontal hydraulic broaching machine, which aims to improve the problems of the inability to rotate and adjust the broaching angle and the inability to cool the broaching tool in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: an adjustable horizontal hydraulic broaching machine, comprising a broaching frame, a hydraulic rod fixedly connected to the middle left side of the broaching frame, a push plate fixedly connected to the output end of the hydraulic rod through the broaching frame, a mounting block rotatably connected to the right side of the push plate, a gear fixedly connected to the outer wall of the mounting block, an electric push rod fixedly connected to the rear top of the push plate, a slider fixedly connected to the output end of the electric push rod, the slider slidably connected to the left and right sides of the push plate, a rack fixedly connected to the bottom right side of the slider, the rack meshing with the outer wall of the gear, a broaching hole is provided at the upper middle right side of the broaching frame, a broaching tool is provided inside the broaching hole, and a mounting assembly is provided inside the mounting block.

[0007] As a further description of the above technical solution:

[0008] The mounting assembly includes a threaded groove and a threaded block. The threaded groove is located on the right side of the mounting block, and the threaded block is threadedly connected to the inner wall of the threaded groove. The threaded block is fixedly connected to the right side of the broach.

[0009] As a further description of the above technical solution:

[0010] A sliding frame is slidably connected to the rear side of the tufting frame, a filter screen is fixedly connected to the inner wall of the sliding frame, a nozzle is fixedly connected to the right side of the inner wall of the tufting frame, an output pump is fixedly connected to the bottom right side of the front end of the tufting frame, a pipe is fixedly connected to the output end of the output pump, the pipe is fixedly connected to the top of the nozzle, and the broach is located at the bottom of the nozzle.

[0011] As a further description of the above technical solution:

[0012] A magnetic suction plate is fixedly connected to the rear side of the sliding frame, and the magnetic suction plate abuts against the rear side of the tufting frame. A handle is fixedly connected to the rear side of the tufting frame.

[0013] As a further description of the above technical solution:

[0014] The inner wall of the tufting frame is fixedly connected with front and rear opposing fixed rods, and the push plate is slidably connected in the middle of the two fixed rods.

[0015] As a further description of the above technical solution:

[0016] A drain pipe is fixedly connected to the front right side of the tufting frame, a valve is fixedly connected to the middle of the drain pipe, and a beveled block is fixedly connected to the bottom of the inner wall of the tufting frame.

[0017] As a further description of the above technical solution:

[0018] A fixing block is fixedly connected to the right side of the tufting frame, the hydraulic rod is fixedly connected to the top of the fixing block, an observation port is provided in the middle of the front end of the tufting frame, and evenly distributed casters are fixedly connected to the bottom of the tufting frame.

[0019] As a further description of the above technical solution:

[0020] The broaching frame has a front-to-back positioning hole on the upper right side, and the broaching hole is located between the two positioning holes.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, the broach is adjusted and rotated by the cooperation of the broach frame, hydraulic rod, push plate, electric push rod, slider, rack, mounting block, gear and threaded groove. This reduces the number of times the workpiece is flipped and the number of times the broach is frequently pulled out, thereby saving the time for workpiece positioning and adjustment and improving the overall processing efficiency.

[0023] 2. In this utility model, through the cooperation of the output pump, pipe, nozzle, sliding frame, filter screen, magnetic plate and handle, the broach is cooled and the debris is collected, reducing the thermal expansion of the broach caused by overheating, thereby maintaining the stability of the tool size and improving the machining accuracy. At the same time, the debris can be collected and recycled, reducing resource waste. Attached Figure Description

[0024] Figure 1 This is a three-dimensional schematic diagram of an adjustable horizontal hydraulic broaching machine proposed in this utility model;

[0025] Figure 2 This is a schematic diagram of the broaching frame of an adjustable horizontal hydraulic broaching machine proposed in this utility model;

[0026] Figure 3 This is a schematic diagram of the hydraulic rod structure of an adjustable horizontal hydraulic broaching machine proposed in this utility model;

[0027] Figure 4 This is a schematic diagram of the push plate of an adjustable horizontal hydraulic broaching machine proposed in this utility model;

[0028] Figure 5 for Figure 1 Enlarged view of point A in the middle.

[0029] Legend:

[0030] 1. Broaching frame; 2. Hydraulic rod; 3. Push plate; 4. Electric push rod; 5. Slider; 6. Rack; 7. Mounting block; 8. Gear; 9. Broach; 10. Threaded groove; 11. Threaded block; 12. Fixing rod; 13. Broaching hole; 14. Positioning hole; 15. Output pump; 16. Pipe; 17. Nozzle; 18. Sliding frame; 19. Filter screen; 20. Magnetic plate; 21. Handle; 22. Bevel block; 23. Fixing block; 24. Drain pipe; 25. Observation port; 26. Casters; 27. Valve. Detailed Implementation

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

[0032] Reference Figure 1 , Figure 4 and Figure 5 This utility model provides an embodiment of an adjustable horizontal hydraulic broaching machine, comprising a broaching frame 1, a hydraulic rod 2 fixedly connected to the middle left side of the broaching frame 1, a push plate 3 fixedly connected to the output end of the hydraulic rod 2 through the broaching frame 1, a mounting block 7 rotatably connected to the right side of the push plate 3, a gear 8 fixedly connected to the outer wall of the mounting block 7, an electric push rod 4 fixedly connected to the rear top of the push plate 3, a slider 5 fixedly connected to the output end of the electric push rod 4, the slider 5 slidably connected to the left and right sides of the push plate 3, a rack 6 fixedly connected to the bottom right side of the slider 5, the rack 6 meshing with the outer wall of the gear 8, and a broaching hole 13 opened at the upper middle right side of the broaching frame 1, with a broaching tool 9 disposed inside the broaching hole 13. The mounting block 7 has a mounting assembly inside, which includes a threaded groove 10 and a threaded block 11. The threaded groove 10 is located on the right side of the mounting block 7. The threaded block 11 is threadedly connected to the inner wall of the threaded groove 10. The threaded block 11 is fixedly connected to the right side of the broach 9. The inner wall of the broach frame 1 is fixedly connected to two opposing fixed rods 12. The push plate 3 is slidably connected to the middle of the two fixed rods 12. The right side of the broach frame 1 is fixedly connected to a fixed block 23. The hydraulic rod 2 is fixedly connected to the top of the fixed block 23. The bottom of the broach frame 1 is fixedly connected to evenly distributed casters 26. The upper right side of the broach frame 1 has opposing positioning holes 14. The broaching hole 13 is located between the two positioning holes 14.

[0033] The workpiece to be processed is installed and secured through the positioning hole 14. Then, the broach 9 is inserted into the broaching hole 13 and threaded into the thread groove 10 via the threaded block 11, thus fixing the push plate 3 and the broach 9. The hydraulic rod 2 is then retracted, pulling the push plate 3 to the left, simultaneously pulling the broach 9 to the left to process the workpiece. The hydraulic rod 2 is then extended, pushing the broach 9 to the right via the push plate 3. When further processing is needed after processing, the electric push rod 4 is activated to extend and retract, causing the slider 5 to slide back and forth on the push plate 3. When activated, the rack 6 meshes with the gear 8, causing the mounting block 7 to rotate. As the mounting block 7 rotates, it drives the broach 9 to rotate via the threaded block 11. When the broach 9 rotates to the required angle, the hydraulic rod 2 retracts and the push plate 3 pulls the broach 9 to the left to continue processing the workpiece. When the push plate 3 moves within the broach frame 1, it slides between the two fixed rods 12 for stability, preventing deviation. The fixed block 23 supports the hydraulic rod 2 to prevent it from tilting due to excessive weight. The casters 26 facilitate the overall movement or transportation of the broach frame 1.

[0034] Reference Figures 1-3 A sliding frame 18 is slidably connected to the rear side of the pull bed frame 1. A filter screen 19 is fixedly connected to the inner wall of the sliding frame 18. A nozzle 17 is fixedly connected to the right side of the inner wall of the pull bed frame 1. An output pump 15 is fixedly connected to the bottom right side of the front end of the pull bed frame 1. A pipe 16 is fixedly connected to the output end of the output pump 15. The pipe 16 is fixedly connected to the top of the nozzle 17. A pull knife 9 is set at the bottom of the nozzle 17. A magnetic suction plate 20 is fixedly connected to the rear side of the sliding frame 18. The magnetic suction plate 20 abuts against the rear side of the pull bed frame 1. A handle 21 is fixedly connected to the rear side of the pull bed frame 1. A drain pipe 24 is fixedly connected to the front right side of the pull bed frame 1. A valve 27 is fixedly connected to the middle of the drain pipe 24. A beveled block 22 is fixedly connected to the bottom of the inner wall of the pull bed frame 1. An observation port 25 is set at the middle of the front end of the pull bed frame 1.

[0035] When the broach 9 moves within the broaching frame 1 and processes the workpiece, the output pump 15 draws water from the bottom of the broaching frame 1 and transmits it to the pipe 16. The pipe 16 then transmits the water to the nozzle 17, where it is sprayed out through multiple nozzles at the bottom of the nozzle 17. This process rinses the part of the broach 9 that is entering the broaching frame 1, cools the broach 9, and washes away the debris generated during processing. This debris, along with the water, is washed away. The debris remains on the filter screen 19, while the water continues to be stored at the bottom of the inner wall of the broaching frame 1 for reuse. By holding the handle 21 and using the magnetic suction plate 20, the sliding frame 18 can be pulled out from the rear of the broaching frame 1 to handle the debris trapped on the filter screen 19. After handling, the sliding frame 18 is pushed back into the broaching frame 1. The handle 21 is used to hold the rear wall of the broaching frame 1, and the inclined block 22 keeps the water at the bottom of the inner wall of the broaching frame 1 on the right side, making it easy for the output pump 15 to draw it out and for the drain pipe 24 to discharge it. Finally, the valve is turned. 27 Open, the water in the pull bed frame 1 is discharged through the drain pipe 24, and the observation port 25 makes it easy to observe the amount of debris intercepted by the sliding frame 18 and the water at the bottom of the inner wall of the pull bed frame 1.

[0036] Working principle: In use, the workpiece to be processed is installed on the positioning hole 14, and the broach 9 is inserted into the broaching frame 1 through the broaching hole 13 and threaded into the thread groove 10 through the threaded block 11. The push plate 3 is pulled to the left by the hydraulic rod 2, which simultaneously pulls the broach 9 to the left to process the workpiece. Then, the push plate 3 and the broach 9 are pushed to the right by the hydraulic rod 2. When the processing is completed and the angle needs to be changed for further processing, the electric push rod 4 is started to make the slider 5 slide on the top of the push plate 3, which simultaneously drives the rack 6 to mesh with the gear 8 to drive the mounting block 7 to rotate. At this time, the mounting block 7 will drive the broach 9 to rotate through the threaded block 11. When the broach 9 rotates to the required angle, the electric push rod 4 is stopped, and the hydraulic rod 2 is started again to drive the push plate 3 and the broach. Pulling broach 9 to the left allows for machining of the workpiece at different angles. When broach 9 is machining the workpiece and extends into the broaching frame 1, water is drawn from the bottom of the inner wall of the broaching frame 1 by the output pump 15 and transmitted to the nozzle 17 through the pipe 16. Multiple nozzles at the bottom of the nozzle 17 spray water onto broach 9, cooling it down and flushing away the generated debris. The debris is intercepted by the filter screen 19, while the water passes through the filter screen 19 and enters the bottom of the inner wall of the broaching frame 1 to be drawn out by the output pump 15 for recycling to cool broach 9. When the debris intercepted on the filter screen 19 reaches a certain amount, the sliding frame 18 is pulled out from the back of the broaching frame 1 by holding the handle 21, and the debris on the filter screen 19 is collected. After collection, the sliding frame 18 is slid back into the broaching frame 1 and adsorbed by the handle 21.

[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An adjustable horizontal hydraulic broaching machine comprising a broaching machine frame (1), characterized in that: The left middle part of the broaching frame (1) is fixedly connected with a hydraulic rod (2), the output end of the hydraulic rod (2) penetrates the broaching frame (1) and is fixedly connected with a push plate (3), the right side of the push plate (3) is rotatably connected with a mounting block (7), the outer wall of the mounting block (7) is fixedly connected with a gear (8), the top rear side of the push plate (3) is fixedly connected with an electric push rod (4), the output end of the electric push rod (4) is fixedly connected with a sliding block (5), the sliding block (5) is slidably connected on the left and right sides of the push plate (3), the bottom right side of the sliding block (5) is fixedly connected with a rack (6), the rack (6) is meshingly connected to the outer wall of the gear (8), the right middle upper end of the broaching frame (1) is provided with a broaching hole (13), the inside of the broaching hole (13) is provided with a broach (9), and the inside of the mounting block (7) is provided with a mounting assembly.

2. An adjustable horizontal hydraulic broaching machine according to claim 1, characterized in that: The mounting assembly comprises a threaded groove (10) and a threaded block (11), the threaded groove (10) is formed in the right side of the mounting block (7), and the inner wall of the threaded groove (10) is threadedly connected with the threaded block (11), and the threaded block (11) is fixedly connected to the right side of the broach (9).

3. An adjustable hydraulic horizontal broaching machine as claimed in claim 1, wherein: The rear side of the broaching frame (1) is slidably connected with a sliding frame (18), the inner wall of the sliding frame (18) is fixedly connected with a filter screen (19), the inner wall right side of the broaching frame (1) is fixedly connected with a spray head (17), the front end right side bottom of the broaching frame (1) is fixedly connected with an output pump (15), the output end of the output pump (15) is fixedly connected with a pipeline (16), the pipeline (16) is fixedly connected to the top of the spray head (17), and the broach (9) is arranged at the bottom of the spray head (17).

4. An adjustable horizontal hydraulic broaching machine according to claim 3, characterized in that: The rear side of the sliding frame (18) is fixedly connected with a magnetic plate (20), the magnetic plate (20) abuts against the rear side of the broaching frame (1), and the rear side of the broaching frame (1) is fixedly connected with a handle (21).

5. An adjustable hydraulic horizontal broaching machine as claimed in claim 1, wherein: The inner wall of the broaching frame (1) is fixedly connected with front and rear opposite fixed rods (12), and the push plate (3) is slidably connected to the middle part of the two fixed rods (12).

6. An adjustable hydraulic horizontal broaching machine as claimed in claim 1, wherein: The right side of the broaching frame (1) is fixedly connected with a drain pipe (24), the middle part of the drain pipe (24) is fixedly connected with a valve (27), and the inner wall bottom of the broaching frame (1) is fixedly connected with a bevel block (22).

7. An adjustable hydraulic horizontal broaching machine as claimed in claim 1 wherein: The right side of the broaching frame (1) is fixedly connected with a fixed block (23), the hydraulic rod (2) is fixedly connected to the top of the fixed block (23), the front end of the broaching frame (1) is provided with an observation port (25), and the bottom of the broaching frame (1) is fixedly connected with evenly distributed universal wheels (26).

8. An adjustable hydraulic horizontal broaching machine as claimed in claim 1 wherein: The right middle upper end of the broaching frame (1) is provided with front and rear opposite positioning holes (14), and the broaching hole (13) is arranged between the two positioning holes (14). The right middle upper end of the broaching frame (1) is provided with front and rear opposite positioning holes (14), and the broaching hole (13) is arranged between the two positioning holes (14).

Citation Information

Patent Citations

  • Hydraulic broaching machine

    CN205571564U