Automatic tool changing device of numerical control slotting machine

Abstract

The utility model relates to the technical field of numerical control slotting machines, and discloses an automatic tool changing device of a numerical control slotting machine, which comprises a slotting machine body and a worm gear, a servo motor is arranged in the slotting machine body, the output end of the servo motor is fixedly connected with a driving belt wheel, the driving belt wheel is sleeved with a synchronous belt, and the synchronous belt is fixedly connected with the worm gear. A worm is rotationally connected to the interior of the slotting machine body, a driven belt wheel is fixedly connected to the exterior of the worm, a ram is fixedly connected to the left side of the exterior of the slotting machine body, a plurality of bearings are arranged on the exterior of a worm gear, and two positioning discs are arranged on the left side of the exterior of the ram. According to the utility model, the servo motor is matched with the worm and the worm gear, so that the tool rest can be rotated and fixed, the stability is good, the tool rest is very practical, the machining rigidity is ensured, the machining precision is also ensured, the service life of the tool is prolonged, the original cumbersome tool replacement is reduced, and the machining efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of numerically controlled slotting machines, in particular to an automatic tool changing device for a numerically controlled slotting machine. Background Art

[0002] As the name implies, CNC slotting machines are machine tools that use digital control technology to guide slotting cutters for precise cutting. This type of machine tool is mainly used to solve the processing of various sizes of workpieces such as inner hole keyways, splines, and special-shaped teeth. Its core advantage lies in its high-precision and repeatable processing capabilities. CNC slotting machines occupy a pivotal position in the modern manufacturing industry with their efficient and precise processing capabilities. Through in-depth understanding and reasonable application of this equipment, productivity and processing quality can be greatly improved, thus gaining an advantage in the fierce market competition.

[0003] However, the traditional tool loading method is no longer suitable for the high-speed, high-precision, and efficient CNC intelligent processing trend. Currently, CNC slotting machines on the market basically use manual tool changing, which has the disadvantages of inaccurate positioning, low efficiency, and unguaranteed quality of processed workpieces, hindering the development of CNC intelligence. Therefore, in view of the above shortcomings, an automatic tool changing device for CNC slotting machines is proposed. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes an automatic tool changing device for a CNC slotting machine, aiming to improve the problems in the prior art that some CNC slotting machines require manual tool changing and the positioning is not accurate enough, resulting in low efficiency.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] An automatic tool changing device for a numerically controlled slotting machine comprises a slotting machine body and a worm wheel, wherein a servo motor is installed inside the slotting machine body, an output end of the servo motor is fixedly connected to a driving pulley, an outer sleeve of the driving pulley is provided with a synchronous belt, a worm is rotatably connected inside the slotting machine body, an outer portion of the worm is fixedly connected to a driven pulley, a ram is fixedly connected to the outer left side of the slotting machine body, a plurality of bearings are arranged on the outer portion of the worm wheel, two positioning plates are arranged on the outer left side of the ram, a cutter disc is fixedly connected to the left side of the two positioning plates, two slotting knives are fixedly connected to the outer portion of the cutter disc, and a driving assembly is arranged inside the slotting machine body.

[0007] Furthermore, the driving assembly comprises a hydraulic cylinder, the exterior of the hydraulic cylinder is mounted inside the slotting machine body, the driving end of the hydraulic cylinder is fixedly connected to a spline shaft, and the exterior of the spline shaft is fixedly connected to a support shaft.

[0008] Further, the internal teeth of the synchronous belt are meshed with the external teeth of the driving pulley, and the internal teeth of the synchronous belt are meshed with the external teeth of the driven pulley.

[0009] Furthermore, the worm and the worm wheel are meshingly connected, the handle of the insert knife is I-shaped, and trapezoidal positioning grooves are provided on both the upper and lower sides of the slide.

[0010] The utility model has the following beneficial effects:

[0011] In the utility model, the rotation and fixation of the tool holder can be achieved through the servo motor in conjunction with the worm and the worm gear, which has good stability and is very practical. It not only ensures the processing rigidity, but also ensures the processing accuracy, and prolongs the service life of the tool, reduces the tediousness of the original tool change, and improves the processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 The utility model discloses a schematic diagram of the ram structure of an automatic tool changing device of a CNC slotting machine.

[0013] Legend:

[0014] 1. Slotting machine body; 2. servo motor; 3. driving pulley; 4. synchronous belt; 5. worm; 6. driven pulley; 7. worm wheel; 8. bearing; 9. slide; 10. positioning plate; 11. support shaft; 12. cutter head; 13. slotting cutter; 14. hydraulic cylinder; 15. spline shaft. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0016] Reference Figure 1The utility model provides an embodiment: an automatic tool changing device for a CNC slotting machine, comprising a slotting machine body 1 and a worm gear 7, a servo motor 2 is installed inside the slotting machine body 1, an output end of the servo motor 2 is fixedly connected to a driving pulley 3, an outer sleeve of the driving pulley 3 is provided with a synchronous belt 4, when the servo motor 2 is running, it can drive other parts to move through the driving pulley 3 and the synchronous belt 4, the inner teeth of the synchronous belt 4 are meshingly connected with the outer teeth of the driving pulley 3, the inner rotation connection of the slotting machine body 1 is a worm 5, the worm 5 and the worm wheel 7 are meshingly connected, the outer fixed connection of the worm 5 is a driven pulley 6, the inner teeth of the synchronous belt 4 are meshingly connected with the outer teeth of the driven pulley 6, the servo motor 2 can drive the worm 5 to rotate through the driving pulley 3, the synchronous belt 4 and the driven pulley 6, thereby driving the worm wheel 7 to rotate, a ram 9 is fixedly connected to the outer left side of the slotting machine body 1, and the ram 9 is provided with upper and lower sides. There is a trapezoidal positioning groove, which can ensure the stability and accuracy of the tool when inserting or pulling out. A plurality of bearings 8 are arranged on the outside of the worm gear 7, and the bearings 8 can ensure the smooth operation of the worm gear 7. Two positioning plates 10 are arranged on the left side of the outside of the ram 9, and a cutter disc 12 is fixedly connected to the left side of the two positioning plates 10. Two insert knives 13 are fixedly connected to the outside of the cutter disc 12, and the handle of the insert knives 13 is in the shape of a letter "1". A driving component is arranged inside the slotting machine body 1, and the driving component includes a hydraulic cylinder 14, and the outside of the hydraulic cylinder 14 is installed inside the slotting machine body 1. The driving end of the hydraulic cylinder 14 is fixedly connected to a spline shaft 15, and the outside of the spline shaft 15 is fixedly connected to a support shaft 11. The support shaft 11 is designed here to make the movement process more stable and stable. The tool handle can be rotated 180 degrees by the servo motor 2, the worm gear 7 and the worm 5. After it is in place, it is clamped or released by the hydraulic cylinder, and it reciprocates according to the system tool change setting.

[0017] Working principle: The tool holder can be rotated 180 degrees through the servo motor 2, worm gear 7 and worm 5. After it is in place, it is clamped or released by the hydraulic cylinder. It reciprocates according to the system tool change setting. The central axis is the spline shaft 15, which reciprocates by the hydraulic oil pump. The tool holder has trapezoidal positioning grooves in the 180-degree direction up and down. The lower part of the slotting machine slide 9 also has trapezoidal positioning grooves with opposite angles. After the tool holder rotates, the hydraulic cylinder 14 returns to its original position. The trapezoidal positioning groove ensures the verticality of the tool holder, that is, the processing accuracy of the workpiece is guaranteed.

[0018] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An automatic tool changing device for a CNC slotting machine, comprising a slotting machine body (1) and a worm gear (7), characterized in that: A servo motor (2) is installed inside the slotting machine body (1); an output end of the servo motor (2) is fixedly connected to a driving pulley (3); a synchronous belt (4) is sleeved on the outside of the driving pulley (3); a worm (5) is rotatably connected inside the slotting machine body (1); a driven pulley (6) is fixedly connected to the outside of the worm (5); a ram (9) is fixedly connected to the left side of the outside of the slotting machine body (1); a plurality of bearings (8) are arranged on the outside of the worm wheel (7); two positioning plates (10) are arranged on the left side of the outside of the ram (9); a cutter disc (12) is fixedly connected to the left side of the two positioning plates (10); two slotting knives (13) are fixedly connected to the outside of the cutter disc (12); and a driving assembly is arranged inside the slotting machine body (1).

2. The automatic tool changing device for a CNC slotting machine according to claim 1, characterized in that: The driving assembly comprises a hydraulic cylinder (14), the exterior of the hydraulic cylinder (14) being mounted inside the slotting machine body (1), the driving end of the hydraulic cylinder (14) being fixedly connected to a spline shaft (15), and the exterior of the spline shaft (15) being fixedly connected to a support shaft (11).

3. The automatic tool changing device for a CNC slotting machine according to claim 1, characterized in that: The internal teeth of the synchronous belt (4) are meshed with the external teeth of the driving pulley (3), and the internal teeth of the synchronous belt (4) are meshed with the external teeth of the driven pulley (6).

4. The automatic tool changing device for a CNC slotting machine according to claim 1, characterized in that: The worm (5) and the worm wheel (7) are meshingly connected, the handle of the inserting knife (13) is I-shaped, and trapezoidal positioning grooves are provided on both upper and lower sides of the ram (9).

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