An internal spline finishing apparatus

Abstract

The utility model relates to the field of inner spline machining especially relates to a kind of inner spline finish machining equipment, including machine table, three-jaw chuck and cleaning mechanism, and the cutter is connected with driving element on machine table upside, and the cutter side is fixed with infusion tube, and three-jaw chuck is fixed in the top of machine table by support frame, and cleaning mechanism includes injection assembly and recycling component, and injection assembly includes collection tank, filter plate and spray ring. Cooling liquid filtered is delivered to spray ring by water pump, and then three-jaw chuck and inner spline are sprayed and cleaned in large range, avoid the damage such as scratch produced when clamping subsequent inner spline needing finish machining and chip extrusion, accurate positioning, improve the machining precision and appearance quality of workpiece spline, simultaneously make cooling liquid get cyclic utilization, reduce production cost, and driving module is driven scraper to push the chip accumulated on the surface of filter plate into two recycling tanks, while avoiding excessive chip to block filter plate, improve filtration effect.

Description

Technical Field

[0001] This utility model relates to the field of internal spline machining, and in particular to an internal spline precision machining equipment. Background Technology

[0002] With the development of modern industry, the requirements for the machining accuracy of internal splines are getting higher and higher. Especially in high-end manufacturing fields such as aerospace and automobiles, high-precision internal spline machining is required to ensure transmission reliability. The machining accuracy of internal splines directly affects the performance and life of products. Using high-precision CNC machining equipment can effectively improve the machining accuracy of internal splines.

[0003] According to the patent document with publication number CN119426726A, the patent document describes a method of fixing the spline of a workpiece using a hollow three-jaw chuck. A second motor drives the spline of the workpiece to move closer to the tool, allowing the tool to smoothly enter the spline of the workpiece. A first motor drives the fixing plate, tool holder, and tool structure to reciprocate. A rotary motor drives the spline of the workpiece to rotate and feed towards the grinding direction close to the tooth surface according to the grinding parameters, starting the tooth surface grinding. At the same time, a coolant is delivered through a liquid inlet pipe to cool the tool during the grinding operation and remove grinding particles.

[0004] In the process of cooling the cutting tool with coolant, the patent document states that since the coolant is mainly sprayed onto the cutting tool, some grinding particles splash, which means that the coolant cannot completely remove all the grinding particles. The debris contaminated with coolant easily adheres to the hollow three-jaw chuck. If it is not cleaned in time, the grinding particles can easily cause scratches and other damage when clamping the spline of the workpiece, affecting the machining accuracy and appearance quality of the spline. Utility Model Content

[0005] The purpose of this invention is to provide an internal spline finishing device to solve the above-mentioned problems.

[0006] This utility model achieves the above objectives through the following technical solutions:

[0007] An internal spline finishing machine includes a machine base, a three-jaw chuck, and a cleaning mechanism.

[0008] A cutting tool is connected to the upper side of the machine platform via a drive component, and an infusion tube is fixed to one side of the cutting tool.

[0009] The three-jaw chuck is fixed to the top of the machine tool by a support frame.

[0010] The cleaning mechanism includes a spraying component and a recovery component.

[0011] The spray assembly includes a collection box, a filter plate, and a spray ring. The collection box is located on the lower side of the three-jaw chuck, the filter plate is fixed inside the collection box, and the spray ring is located on the upper side of the three-jaw chuck. An extraction component is provided between the spray ring and the collection box, through which the filtered coolant in the collection box is pumped into the spray ring.

[0012] The recycling component is located on top of the filter plate, and it promptly cleans and collects the debris that accumulates on top of the filter plate.

[0013] Preferably, the recycling assembly includes a scraper, a drive module, and two recycling bins. The scraper is located on top of the filter plate and is driven by the drive module to move back and forth along both sides. The two recycling bins are fixed on both sides of the collection bin.

[0014] Preferably, the drive module includes a lead screw and a motor. The lead screw is threadedly connected to the front end of the scraper. The lead screw is rotatably connected to the front end of the machine tool, and the motor is fixed to the input end of the lead screw.

[0015] Preferably, the extraction component is a water pump, which is located on the lower side of the filter plate, and the water outlet of the water pump is connected to the spray ring.

[0016] Preferably, the spray ring is fixed to the top of the support frame by a support plate.

[0017] Preferably, several nozzles are fixed at the bottom of the spray ring, and the nozzles are inclined toward the three-jaw chuck.

[0018] Preferably, a guide rod is fixed at the rear end of the machine, and the guide rod is slidably connected to the rear end of the scraper. Discharge ports are opened on both sides of the collection box.

[0019] The advantages compared to existing technologies are as follows:

[0020] 1. The filtered coolant is pumped into the spray ring by a water pump, which sprays and cleans the three-jaw chuck and internal splines over a wide area. This avoids scratches and other damage caused by the squeezing of debris when clamping the internal splines that need to be precision machined later. It ensures accurate positioning, improves the machining accuracy and appearance quality of the workpiece splines, and allows the coolant to be recycled, reducing production costs.

[0021] 2. The drive module drives the scraper to push the debris accumulated on the surface of the filter plate into two recycling bins, which not only recycles the debris but also prevents excessive debris from clogging the filter plate, thus improving the filtration effect. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the internal spline finishing equipment described in this utility model;

[0024] Figure 2 This is a top view of the internal spline finishing equipment described in this utility model;

[0025] Figure 3 yes Figure 2 Sectional view at point AA;

[0026] Figure 4 yes Figure 3 A magnified view of a section at point B in the middle;

[0027] Figure 5 This is a schematic diagram of the spray ring and nozzle structure of the internal spline finishing equipment described in this utility model;

[0028] Figure 6 This is a schematic diagram of the filter plate and scraper structure of the internal spline finishing equipment described in this utility model.

[0029] The annotations in the attached figures are explained as follows:

[0030] 100. Machine base; 200. Cutting tool; 300. Infusion tube; 400. Support frame; 500. Three-jaw chuck; 601. Collection box; 602. Filter plate; 603. Water pump; 604. Spray ring; 605. Nozzle; 701. Scraper; 702. Lead screw; 703. Motor; 704. Recovery box. Detailed Implementation

[0031] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. The motors and their associated control systems, power supply modules, circuits, and pipelines mentioned herein can be provided by the manufacturer. Apart from this, the electronic components and control modules involved in this utility model are all prior art, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this utility model does not involve improvements to the structure and usage methods of electronic components.

[0032] The present invention will be further described below with reference to the accompanying drawings:

[0033] like Figures 1-6 As shown, an internal spline finishing machine includes a machine base 100, a three-jaw chuck 500, and a cleaning mechanism.

[0034] A cutting tool 200 is connected to the upper side of the machine base 100 via a drive unit, which is a cylinder. An infusion pipe 300 is fixed to one side of the cutting tool 200. A three-jaw chuck 500 is fixed to the top of the machine base 100 via a support frame 400. The internal spline that needs to be precision machined is fixed by the three-jaw chuck 500. The cutting tool 200 is driven to move up and down reciprocally by the drive unit to perform precision machining on the internal spline. During this process, coolant is delivered through the infusion pipe 300 to cool the cutting tool 200 during operation.

[0035] The cleaning mechanism includes a spraying assembly and a recovery assembly. The spraying assembly includes a collection tank 601, a filter plate 602, and a spray ring 604. The collection tank 601 is located below the three-jaw chuck 500, and the filter plate 602 is fixed inside the collection tank 601. The spray ring 604 is located above the three-jaw chuck 500 and is fixed to the top of the support frame 400 by a support plate. Several nozzles 605 are fixed to the bottom of the spray ring 604, and the nozzles 605 are inclined towards the three-jaw chuck 500. An extraction component is provided between the spray ring 604 and the collection tank 601. The extraction component, which is a water pump 603, pumps the filtered coolant from the collection tank 601 into the spray ring 604. On the lower side of the filter plate 602, the outlet of the water pump 603 is connected to the spray ring 604. After use, the coolant carries some debris and falls into the collection box 601. The filter plate 602 intercepts and filters the debris in the coolant. The filtered coolant is then pumped by the water pump 603 into the spray ring 604. The filtered coolant then passes through several nozzles 605 to spray and clean the three-jaw chuck 500 and the internal spline over a wide area, cleaning the debris in time and avoiding scratches and other damage when clamping the internal spline that needs to be precision machined later. This ensures accurate positioning, improves the machining accuracy and appearance quality of the workpiece spline, and the used coolant falls back into the collection box 601, allowing the coolant to be recycled and reducing production costs.

[0036] The recycling component is located on top of the filter plate 602. It promptly cleans and collects the debris accumulated on top of the filter plate 602. The recycling component includes a scraper 701, a drive module, and two recycling bins 704. The scraper 701 is located on top of the filter plate 602 and is driven by the drive module to move back and forth along both sides. The two recycling bins 704 are fixed to both sides of the collection bin 601, and each side of the collection bin 601 has a discharge port. The drive module includes a lead screw 702 and a motor 703. The lead screw 702 is threadedly connected to the front end of the scraper 701. The 02 is rotatably connected to the front end of the machine base 100. The motor 703 is fixed to the input end of the lead screw 702. The rear end of the machine base 100 is fixed with a guide rod, which is slidably connected to the rear end of the scraper 701. The motor 703 drives the lead screw 702 to rotate in the forward direction and then in the reverse direction, thereby driving the scraper 701 to move back and forth on the surface of the filter plate 602 towards the two recovery boxes 704. Thus, the scraper 701 pushes the debris accumulated on the surface of the filter plate 602 into the two recovery boxes 704, which not only recovers the debris but also avoids excessive debris clogging the filter plate 602, thereby improving the filtration effect.

[0037] Working principle: The internal spline to be precision machined is fixed by the three-jaw chuck 500, and the tool 200 is driven to move up and down reciprocally to perform precision machining on the internal spline. During this process, coolant is delivered through the liquid inlet pipe 300 to cool the tool 200 during operation.

[0038] After use, the coolant, carrying some debris, falls into the collection tank 601. The debris is intercepted and filtered by the filter plate 602. The filtered coolant is then pumped by the water pump 603 into the spray ring 604. The filtered coolant then passes through several nozzles 605 to spray and clean the three-jaw chuck 500 and the internal spline over a wide area, removing debris in time and avoiding scratches and other damage when clamping the internal spline that needs to be precision machined later. This ensures accurate positioning, improves the machining accuracy and appearance quality of the workpiece spline, and the used coolant falls back into the collection tank 601, allowing the coolant to be recycled and reducing production costs.

[0039] After a certain period of time, the motor 703 drives the lead screw 702 to rotate in the forward direction and then in the reverse direction, thereby driving the scraper 701 to move back and forth on the surface of the filter plate 602 towards the two recovery boxes 704. Thus, the scraper 701 pushes the debris accumulated on the surface of the filter plate 602 into the two recovery boxes 704, recovering the debris while avoiding excessive debris clogging the filter plate 602 and improving the filtration effect.

[0040] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. An internal spline finishing machine, characterized in that: Includes a machine base (100), a three-jaw chuck (500), and a cleaning mechanism; The upper side of the machine base (100) is connected to a cutting tool (200) via a driving component, and an infusion tube (300) is fixed to one side of the cutting tool (200); The three-jaw chuck (500) is fixed to the top of the machine base (100) by a support frame (400); The cleaning mechanism includes a spraying component and a recovery component; The spray assembly includes a collection box (601), a filter plate (602), and a spray ring (604). The collection box (601) is located below the three-jaw chuck (500). The filter plate (602) is fixed inside the collection box (601). The spray ring (604) is located above the three-jaw chuck (500). An extraction component is provided between the spray ring (604) and the collection box (601). The filtered coolant in the collection box (601) is pumped into the spray ring (604) through the extraction component. The recycling component is located on top of the filter plate (602), and the debris accumulated on the top of the filter plate (602) is cleaned and collected in a timely manner through the recycling component.

2. The internal spline finishing equipment according to claim 1, characterized in that: The recycling assembly includes a scraper (701), a drive module, and two recycling bins (704). The scraper (701) is located on top of the filter plate (602). The drive module drives the scraper (701) to move back and forth along both sides. The two recycling bins (704) are respectively fixed on both sides of the collection bin (601).

3. The internal spline finishing equipment according to claim 2, characterized in that: The drive module includes a lead screw (702) and a motor (703). The lead screw (702) is threadedly connected to the front end of the scraper (701). The lead screw (702) is rotatably connected to the front end of the machine base (100). The motor (703) is fixed to the input end of the lead screw (702).

4. The internal spline finishing equipment according to claim 1, characterized in that: The extraction component is a water pump (603), which is located below the filter plate (602). The water outlet of the water pump (603) is connected to the spray ring (604).

5. The internal spline finishing equipment according to claim 1, characterized in that: The spray ring (604) is fixed to the top of the support frame (400) by a support plate.

6. The internal spline finishing equipment according to claim 5, characterized in that: The bottom of the spray ring (604) is fixed with a number of nozzles (605), and the nozzles (605) are inclined toward the three-jaw chuck (500).

7. The internal spline finishing equipment according to claim 3, characterized in that: The rear end of the machine platform (100) is fixed with a guide rod, which is slidably connected to the rear end of the scraper (701). The collection box (601) has discharge ports on both sides.

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