Small-modulus high-precision gear forming machining tool

Abstract

The utility model relates to the technical field of gear forming cutters, in particular to a small-modulus high-precision gear forming machining cutter which comprises a cutter disc, connecting discs are arranged in the middles of the two sides of the cutter disc, a plurality of hollow areas are evenly formed in the connecting discs, and first holes communicated with the hollow areas are formed in one sides of the connecting discs. A second hole communicated with the hollow area is formed in the outer side of the connecting disc, a threaded rod is rotationally arranged in the first hole in a limited mode, a first bevel gear is fixed to one end, located in the hollow area, of the threaded rod, a connecting shaft is rotationally arranged in the second hole in a limited mode, a second bevel gear meshed with the first bevel gear is fixed to the bottom end of the connecting shaft, and an inner hexagonal end is fixed to the top end of the connecting shaft. The gear machining tool solves the problems that a tool bit in an existing gear machining tool cannot be replaced and is inconvenient to use, and a gap is formed between a limiting cylinder and a cutter head, so that the cutter head is prone to shaking in the cutting process.

Description

TECHNICAL FIELD

[0001] The utility model relates to gear forming tool technical field, concretely point to a kind of small modulus high-precision gear forming machining tool. BACKGROUND

[0002] Gear transmission is a way of transmitting motion and power through the meshing of gear teeth, and is the main form of mechanical transmission. It has the characteristics of high transmission efficiency, large carrying capacity, high transmission precision, high reliability and long service life, and has been widely used in aerospace, wind power, water conservancy and hydropower, engineering machinery and other fields.

[0003] The existing gear finishing tool is generally of integrated structure, and once one blade tooth is severely worn, the entire tool must be replaced. In addition, a limiting cylinder is needed to clamp the cutter head during cutting to facilitate clamping and fixing the position of the cutter head. However, since the limiting cylinder has a certain gap with the side surface of the cutter head, it is inevitable that the cutter head will shake during cutting, affecting the machining precision. SUMMARY

[0004] The utility model solves the problem that the tool bit in the existing gear machining tool cannot be replaced, which is inconvenient to use, and the cutter head shakes during cutting due to the gap between the limiting cylinder and the cutter head.

[0005] To solve the above problems, the utility model adopts the technical scheme of a small modulus high-precision gear forming machining tool, which comprises a cutter head, a connecting disc is arranged at the middle part of both sides of the cutter head, a plurality of hollow areas are uniformly arranged in the connecting disc, a hole one is arranged on one side of the connecting disc and communicates with the hollow area, a hole two is arranged on the outer side of the connecting disc and communicates with the hollow area, a threaded rod is limitingly rotatable arranged in the hole one, a taper gear one is fixed at one end of the threaded rod and located in the hollow area, a connecting shaft is limitingly rotatable arranged in the hole two, a taper gear two meshing with the taper gear one is fixed at the bottom end of the connecting shaft, and an internal hexagonal end is fixed at the top end of the connecting shaft.

[0006] As a further scheme of the utility model, a rotating shaft is connected to the middle part of the cutter head through spline connection, a clamping sleeve is sleeved on both sides of the cutter head outside the rotating shaft, a threaded hole is arranged at one end of the cutter head near the cutter head in the hole one, the threaded rod and the threaded hole are threadedly rotatable connected, the distance between the cutter head and the clamping sleeve can be made more close, the shaking during rotation is reduced, and the cutting precision is improved.

[0007] As a further scheme of the utility model, a plurality of plug-in grooves are arranged at the edge of the cutter head, a cutting tool is inserted in the plug-in groove, the cutting tool can be replaced at any time, a hole is arranged at both sides of the cutting tool, and a round hole is arranged at the side surface of the plug-in groove at the hole.

[0008] As a further scheme of the utility model: the cutting tool is fixed in the insertion slot through the cooperation of the bolt, the through hole and the nut, and the position of the cutting tool is fixed.

[0009] As a further scheme of the utility model: if the hollow regions are three in total, the connection is more stable.

[0010] As a further scheme of the utility model: the top end of the cutting tool is an acute angle structure, so that the gear cutting is facilitated.

[0011] Compared with the prior art, the utility model has the advantages that the threaded rod structure is added, the threaded rod structure can be tightly connected with the clamping sleeve, the tool is prevented from shaking during cutting, the cutting tool is facilitated to be disassembled, and when one cutting tool is damaged, only the cutting tool needs to be replaced. BRIEF DESCRIPTION OF DRAWINGS

[0012] The drawings are used to provide a further understanding of the utility model, and constitute a part of the specification, are used to explain the utility model together with the embodiments of the utility model, and do not constitute the limitation to the utility model. In the drawings:

[0013] Figure 1 It is an overall structure perspective view of the small modulus high-precision gear forming machining tool.

[0014] Figure 2 It is an overall structure sectional view of the small modulus high-precision gear forming machining tool.

[0015] Figure 3 It is a cutting tool perspective view of the small modulus high-precision gear forming machining tool.

[0016] Figure 4 It is an A part structure enlarged view of the small modulus high-precision gear forming machining tool.

[0017] In the drawings:

[0018] 1, cutter head; 2, connecting disc; 3, threaded rod; 4, bevel gear one; 5, connecting shaft; 6, bevel gear two; 7, inner hexagonal end; 8, rotating shaft; 9, clamping sleeve; 10, cutting tool; 1.1, insertion slot; 2.1, hollow region; 2.2, hole one; 2.3, hole two; 9.1, threaded hole; 10.1, opening. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0020] The utility model provides a technical scheme: in order to solve the existing problem proposed in the background art.

[0021] Combine the drawings Figures 1-4 It can be known that the cutter head 1 is provided with the connecting disc 2 at the middle of both sides, the hollow area 2.1 is uniformly arranged in the connecting disc 2, it is convenient to connect more stably, the hole one 2.2 that is communicated with the hollow area 2.1 is arranged at one side of the connecting disc 2, the hole two 2.3 that is communicated with the hollow area 2.1 is arranged at the outside of the connecting disc 2, the screw rod 3 is limit rotation arranged in the hole one 2.2, the bevel gear one 4 is fixed in the hollow area 2.1 at one end of the screw rod 3, the connecting shaft 5 is limit rotation arranged in the hole two 2.3, the bevel gear two 6 that is engaged with the bevel gear one 4 is fixed at the bottom end of the connecting shaft 5, the inner hexagonal end 7 is fixed at the top end of the connecting shaft 5, the rotating shaft 8 is connected with the cutter head 1 through the spline at the middle, the clamping sleeve 9 is arranged at both sides of the cutter head 1, the threaded hole 9.1 is arranged at one end of the clamping sleeve 9 near the cutter head 1, the screw rod 3 is screw rotation connected with the threaded hole 9.1, the distance between the cutter head 1 and the clamping sleeve 9 can be more closely, the shaking when rotating is reduced, the cutting precision is improved, the cutting tool 10 is fixed in the plug-in slot 1.1 through the bolt passing through the opening 10.1 and cooperating with the nut, and is used for fixing the position of the cutting tool 10.

[0022] Combine the drawings Figure 1 , 3 It can be known that the cutter head 1 is provided with the connecting disc 2 at the middle of both sides, the hollow area 2.1 is uniformly arranged in the connecting disc 2, it is convenient to connect more stably, the hole one 2.2 that is communicated with the hollow area 2.1 is arranged at one side of the connecting disc 2, the hole two 2.3 that is communicated with the hollow area 2.1 is arranged at the outside of the connecting disc 2, the screw rod 3 is limit rotation arranged in the hole one 2.2, the bevel gear one 4 is fixed in the hollow area 2.1 at one end of the screw rod 3, the connecting shaft 5 is limit rotation arranged in the hole two 2.3, the bevel gear two 6 that is engaged with the bevel gear one 4 is fixed at the bottom end of the connecting shaft 5, the inner hexagonal end 7 is fixed at the top end of the connecting shaft 5, the rotating shaft 8 is connected with the cutter head 1 through the spline at the middle, the clamping sleeve 9 is arranged at both sides of the cutter head 1, the threaded hole 9.1 is arranged at one end of the clamping sleeve 9 near the cutter head 1, the screw rod 3 is screw rotation connected with the threaded hole 9.1, the distance between the cutter head 1 and the clamping sleeve 9 can be more closely, the shaking when rotating is reduced, the cutting precision is improved, the cutting tool 10 is fixed in the plug-in slot 1.1 through the bolt passing through the opening 10.1 and cooperating with the nut, and is used for fixing the position of the cutting tool 10.

[0023] The working principle of the application is: when the cutting tool 10 is replaced, the nut is unscrewed, then the bolt is taken out from the opening 10.1 and the through hole, then the cutting tool 10 is taken down, and then a new cutting tool 10 is replaced.

[0024] When the cutter head 1 is installed, first, the cutter head 1 is fixed on the outside of the rotating shaft 8 through the spline, then the clamping sleeve 9 is arranged on both sides of the cutter head 1, at this time, the bevel gear II 6 can be rotated by rotating the inner hexagonal end 7 through the use of a hexagonal wrench, so as to drive the bevel gear I 4 to rotate, so that the threaded rod 3 is rotated into the threaded hole 9.1, the gap between the clamping sleeve 9 and the connecting disc 2 is reduced, and stability during rotation is facilitated, and cutting precision is improved.

[0025] The above describes the utility model and its implementation mode, and this description is not restrictive, and the embodiment shown in the drawings is only one of the utility model, and the actual structure is not limited thereto. In summary, if a person skilled in the art is inspired thereby, without departing from the creative purpose of the utility model, similar structure modes and embodiments are not creatively designed, which should belong to the protection scope of the utility model.

Claims

1. A small-module, high-precision gear forming tool, comprising a cutter head (1), characterized in that: The cutter head (1) is provided with a connecting plate (2) in the middle of both sides. The connecting plate (2) is provided with several hollow areas (2.1) evenly distributed inside. A hole (2.2) communicating with the hollow area (2.1) is provided on one side of the connecting plate (2). A hole (2.3) communicating with the hollow area (2.1) is provided on the outside of the connecting plate (2). A threaded rod (3) is provided in the hole (2.2) for limiting rotation. A bevel gear (4) is fixed at one end of the threaded rod (3) in the hollow area (2.1). A connecting shaft (5) is provided in the hole (2.3) for limiting rotation. A bevel gear (6) meshing with the bevel gear (4) is fixed at the bottom of the connecting shaft (5). An internal hexagonal end (7) is fixed at the top of the connecting shaft (5).

2. The small module high-precision gear forming tool according to claim 1, characterized in that: The cutter head (1) is connected to a rotating shaft (8) via a spline in the middle. The outer side of the rotating shaft (8) is fitted with clamping sleeves (9) on both sides of the cutter head (1). The clamping sleeves (9) near the cutter head (1) are provided with threaded holes (9.1) at hole one (2.2). The threaded rod (3) is threadedly rotated to the threaded hole (9.1).

3. The small module high-precision gear forming tool according to claim 1, characterized in that: The cutter head (1) has several insertion slots (1.1) on its edge. A cutting tool (10) is inserted in the insertion slot (1.1). Openings (10.1) are opened on both sides of the cutting tool (10). A round hole is opened on the side of the insertion slot (1.1) at the opening (10.1).

4. The small module high-precision gear forming tool according to claim 3, characterized in that: The cutting tool (10) is fixed in the insertion slot (1.1) by bolts passing through the opening (10.1) and the through hole and then engaging with the nut.

5. The small module high-precision gear forming tool according to claim 1, characterized in that: There are three hollow regions (2.1) mentioned above.

6. The small module high-precision gear forming tool according to claim 3, characterized in that: The cutting tool (10) has an acute-angled top.

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