A broaching device for gear splines
By introducing a cleaning device into the spline broaching machine, and utilizing high-pressure gas and adsorption components, the problem of difficult chip cleaning of the inner hole of the workpiece is solved, and convenient and efficient chip cleaning is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHONGQING YOUTAI MASCH CO LTD
- Filing Date
- 2025-09-05
- Publication Date
- 2026-07-31
AI Technical Summary
When conventional spline broaching equipment is used to machine the inner hole of a workpiece, the debris is difficult to remove and manual cleaning is also difficult.
A gear spline broaching device was designed, which includes a cleaning device that uses high-pressure gas to blow away debris from the inner hole through a cleaning pipe and achieves automated cleaning through an adsorption component and a collection box.
It enables convenient cleaning of debris inside workpiece holes, improving processing efficiency and cleaning effect.
Smart Images
Figure CN224574773U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of spline machining technology, and in particular to a broaching device for gear splines. Background Technology
[0002] Gear spline broaching is a highly efficient and precise metal cutting process specifically designed for machining splines or internal gears with precise tooth profiles on workpieces (typically the inner bores of shafts or sleeves). Its core principle utilizes a specially designed spline broach. Under a strong pulling force, the broach moves smoothly and continuously in a straight line along the axis of the workpiece's inner bore. Each cutting tooth on the broach sequentially removes a thin layer of metal from the surface of the workpiece's inner bore. Through the continuous cutting of all the cutting teeth, the surface of the workpiece's inner bore is precisely shaped, ultimately forming a complete spline groove or internal gear profile with the required number of teeth, module, pressure angle, and tolerances.
[0003] However, conventional spline broaching equipment leaves workpiece debris inside the workpiece's inner hole when machining it, making manual cleaning difficult. Utility Model Content
[0004] The purpose of this invention is to provide a broaching device for gear splines, which solves the problem that conventional spline broaching devices leave workpiece debris inside the workpiece hole during machining, making manual cleaning difficult.
[0005] To achieve the above objectives, this utility model provides a gear spline broaching device, including a frame, a mounting table, a broach, and a feeding device. The mounting table is fixedly mounted on the frame, and a chuck is provided on the mounting table. The broach is mounted on the frame via the feeding device. The device also includes a cleaning device, which comprises a fixed base, a connecting shaft, a cleaning tube, and an adsorption assembly. The fixed base is fixedly mounted on the frame, the connecting shaft is rotatably mounted on the fixed base, the cleaning tube is fixedly mounted on the connecting shaft and passes through the connecting shaft, and the adsorption assembly is mounted on the fixed base.
[0006] The adsorption assembly includes a magnetic ring and a fixing rod. The magnetic ring is mounted on the fixing base, and the fixing rod is threaded into the fixing base. The fixing rod passes through the magnetic ring, and the magnetic ring is attracted to one end of the cleaning tube.
[0007] The cleaning device further includes a collection box and a fixing frame. The fixing frame is fixedly installed on the frame and close to the mounting platform. The collection box is disposed on the frame and located inside the fixing frame.
[0008] The feeding device includes a fixed platform, a slider, a fixed cylinder, and a locking assembly. The fixed platform is fixedly installed on the frame, and a hydraulic cylinder is provided on the fixed platform. The slider is slidably installed on the fixed platform and is fixedly connected to the output end of the hydraulic cylinder. The fixed cylinder is fixedly installed on the slider, and the cutter is installed in the fixed cylinder through the locking assembly.
[0009] The locking assembly includes a locking rod and a locking head. The locking rod is threaded through the fixed cylinder and abuts against the pull knife. The locking head is fixedly installed on the locking rod.
[0010] This utility model discloses a gear spline broaching device. In use, the workpiece is fixed on the mounting table by the chuck. Then, the hydraulic cylinder is activated, and the output end of the hydraulic cylinder pushes the slider to move along the fixed table towards one side of the workpiece. The movement of the slider drives the broach to broach the inner hole of the workpiece through the fixed cylinder, so that the spline of the inner hole of the workpiece is formed. Then, the broach is withdrawn, and one end of the cleaning tube is connected to an external high-pressure air pump. Then, the other end of the cleaning tube is aligned with the inner hole of the workpiece, and high-pressure gas is blown into the inner hole of the workpiece by the cleaning tube, so that the debris in the inner hole of the workpiece is discharged and falls into the collection box at the bottom, thereby realizing convenient cleaning of the debris in the inner hole of the workpiece. Attached Figure Description
[0011] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.
[0012] Figure 1 This is a schematic diagram of the overall structure of a gear spline broaching device according to this utility model.
[0013] Figure 2 This is a schematic diagram of the adsorption component of this utility model.
[0014] In the diagram: 101-Frame, 102-Mounting platform, 103-Broach, 104-Chuck, 105-Fixed base, 106-Connecting shaft, 107-Cleaning tube, 108-Magnetic ring, 109-Fixed rod, 110-Collection box, 111-Fixed frame, 112-Fixed platform, 113-Slider, 114-Fixed cylinder, 115-Hydraulic cylinder, 116-Locking rod, 117-Locking head. Detailed Implementation
[0015] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.
[0016] The embodiment of this application is as follows:
[0017] Please see Figure 1-2 , Figure 1 This is a schematic diagram of the overall structure of a gear spline broaching device according to this utility model. Figure 2 This is a schematic diagram of the adsorption component of this utility model.
[0018] This utility model provides a gear spline broaching device: including a frame 101, a mounting table 102, a broach 103, and a feeding device, and also includes a cleaning device. The cleaning device includes a fixed base 105, a connecting shaft 106, a cleaning tube 107, and an adsorption assembly. The adsorption assembly includes a magnetic ring 108 and a fixing rod 109. The cleaning device also includes a collection box 110 and a fixing frame 111. The feeding device includes a fixed table 112, a slider 113, a fixing cylinder 114, and a locking assembly. The locking assembly includes a locking rod 116 and a locking head 117. The aforementioned solution solves the problem that conventional spline broaching devices leave workpiece debris inside the workpiece's inner hole during machining, making manual cleaning difficult.
[0019] In this embodiment, by connecting the cleaning pipe 107 to an external high-pressure air pump and aligning one end of the cleaning pipe 107 with the inner hole of the workpiece, the high-pressure gas blown out by the cleaning pipe 107 is directed toward the inner hole of the workpiece, thereby achieving convenient cleaning of debris in the inner hole of the workpiece.
[0020] The fixed base 105 is fixedly mounted on the frame 101, the connecting shaft 106 is rotatably mounted on the fixed base 105, the cleaning tube 107 is fixedly mounted on the connecting shaft 106 and passes through the connecting shaft 106, the adsorption assembly is mounted on the fixed base 105, the puller 103 is provided with pull teeth, the pull teeth are distributed at intervals along the axis of the puller 103, the size of the pull teeth increases sequentially along the axial direction, and a group of pull teeth distributed along the axis is distributed in a ring along the puller 103, the chuck 104 has three jaws, the fixed base 105 is welded to the frame 101, and the connecting shaft 106 has a through hole in the middle for the puller to pass through. The diameter of the hole is equal to the outer diameter of the cleaning tube 107. The cleaning tube 107 is made of metal and has a Z-shaped structure. The adsorption component facilitates simple fixation of the cleaning tube 107. The workpiece is fixed by the chuck 104, and the feed device drives the broach 103 to feed, so that the broach 103 performs spline machining on the inner hole of the workpiece. By connecting the cleaning tube 107 to an external high-pressure air pump and aligning one end of the cleaning tube 107 with the inner hole of the workpiece, the high-pressure gas blown out by the cleaning tube 107 blows into the inner hole of the workpiece, thereby realizing convenient cleaning of debris in the inner hole of the workpiece.
[0021] Secondly, the fixing rod 109 is threadedly engaged with the fixing seat 105. The fixing rod 109 passes through the magnetic ring 108, and the magnetic ring 108 is attracted to one end of the cleaning tube 107. The fixing rod 109 has a T-shaped cross-section and a thread on its horizontal end. The magnetic ring 108 has a circular ring structure. By screwing the fixing rod 109 into the fixing seat 105, the fixing rod 109 fixes the magnetic ring 108. The magnetic ring 108 allows the cleaning tube 107 to be attracted to the magnetic ring 108, making it easy to fix the cleaning tube 107.
[0022] Furthermore, the fixing frame 111 is fixedly installed on the frame 101 and close to the mounting platform 102; the collection box 110 is disposed on the frame 101 and located inside the fixing frame 111. The fixing frame 111 has an L-shaped structure and is fixed to the frame 101 by screws. The opening of the collection box 110 faces upward. The fixing frame 111 facilitates the limiting of the collection box 110 and facilitates the collection of debris falling into the inner hole of the workpiece.
[0023] Furthermore, the fixed platform 112 is fixedly mounted on the frame 101, and a hydraulic cylinder 115 is provided on the fixed platform 112; the slider 113 is slidably mounted on the fixed platform 112 and fixedly connected to the output end of the hydraulic cylinder 115; the fixed cylinder 114 is fixedly mounted on the slider 113, and the puller 103 is mounted inside the fixed cylinder 114 through the locking assembly. The fixed platform 112 has an L-shaped structure, the slider 113 has an inverted U-shaped structure, and the fixed cylinder 114 is welded... The fixed cylinder 114, located on the top side of the slider 113, has an opening on the side facing the mounting platform 102. In use, the puller 103 is inserted into the fixed cylinder 114 and locked by the locking assembly. The hydraulic cylinder 115 drives the slider 113 to move along the fixed platform 112 toward one side of the mounting platform 102, causing the slider 113 to move synchronously with the fixed cylinder 114, thereby causing the fixed cylinder 114 to drive the puller 103 to perform a feed motion.
[0024] Finally, the locking rod 116 is threaded through the fixed cylinder 114 and abuts against the pull knife 103; the locking head 117 is fixedly installed on the locking rod 116, the locking rod 116 is threaded, the axis of the locking rod 116 is perpendicular to the axis of the fixed cylinder 114, the locking head 117 is welded to the top of the locking rod 116, the edge of the locking head 117 protrudes outward, by rotating the locking head 117, the locking head 117 drives the locking rod 116 to rotate, the locking rod 116 moves downward during the rotation and abuts against the pull knife 103 in the fixed cylinder 114, thereby locking the pull knife 103 in the fixed cylinder 114.
[0025] In this embodiment, during use, the workpiece is fixed on the mounting platform 102 by the chuck 104. Then, the hydraulic cylinder 115 is activated, and the output end of the hydraulic cylinder 115 pushes the slider 113 to move along the fixed platform 112 toward one side of the workpiece. The movement of the slider 113 drives the broach 103 to broach the inner hole of the workpiece through the fixed cylinder 114, so that the spline of the inner hole of the workpiece is formed. Then, the broach 103 is withdrawn, and one end of the cleaning tube 107 is connected to an external high-pressure air pump. Then, the other end of the cleaning tube 107 is aligned with the inner hole of the workpiece, and the cleaning tube 107 blows high-pressure gas into the inner hole of the workpiece, so that the debris in the inner hole of the workpiece is discharged and falls into the collection box 110 at the bottom, thereby realizing convenient cleaning of the debris in the inner hole of the workpiece.
[0026] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.
Claims
1. A broaching device for gear splines, comprising a frame, a mounting table, a broach, and a feed device, wherein the mounting table is fixedly mounted on the frame, a chuck is provided on the mounting table, and the broach is mounted on the frame via the feed device, characterized in that, It also includes cleaning devices; The cleaning device includes a fixed base, a connecting shaft, a cleaning tube, and an adsorption assembly. The fixed base is fixedly installed on the frame, the connecting shaft is rotatably installed on the fixed base, the cleaning tube is fixedly installed on the connecting shaft and passes through the connecting shaft, and the adsorption assembly is installed on the fixed base.
2. The gear spline broaching device as described in claim 1, characterized in that, The adsorption assembly includes a magnetic ring and a fixing rod. The magnetic ring is mounted on the fixing base, and the fixing rod is threaded into the fixing base. The fixing rod passes through the magnetic ring, and the magnetic ring is attracted to one end of the cleaning tube.
3. The gear spline broaching device as described in claim 1, characterized in that, The cleaning device also includes a collection box and a fixing frame. The fixing frame is fixedly installed on the frame and close to the mounting platform. The collection box is disposed on the frame and located inside the fixing frame.
4. The gear spline broaching device as described in claim 1, characterized in that, The feeding device includes a fixed platform, a slider, a fixed cylinder, and a locking assembly. The fixed platform is fixedly mounted on the frame, and a hydraulic cylinder is provided on the fixed platform. The slider is slidably mounted on the fixed platform and is fixedly connected to the output end of the hydraulic cylinder. The fixed cylinder is fixedly mounted on the slider, and the cutter is mounted inside the fixed cylinder through the locking assembly.
5. The gear spline broaching device as described in claim 4, characterized in that, The locking assembly includes a locking rod and a locking head. The locking rod is threaded through the fixed cylinder and abuts against the pull knife. The locking head is fixedly installed on the locking rod.