Internal heat dissipation structure of power tool turret

Abstract

The utility model belongs to the technical field of power turrets, and particularly relates to an internal heat dissipation structure of a power turret, which comprises a cutterhead, a transmission shaft and a power motor, a power cutter shaft seat is arranged in the cutterhead, one end of the power cutter shaft seat is provided with the transmission shaft, and the power cutter shaft seat comprises a gear box body and a heat dissipation blank cap. The heat dissipation blank cap is installed at the front end of the gear box body, a heat dissipation disc is installed on the outward side of the heat dissipation blank cap, the heat dissipation blank cap comprises a disc body and a circular ring body, the circular ring body is arranged on the upper surface of the disc body, and a plurality of annular bodies are arranged in the circular ring body. The surface of the front end of the gear box body is hollowed out, the heat dissipation blank cap and the heat dissipation disc are installed, the heat dissipation blank cap and the heat dissipation disc are made of aluminum alloy materials, and heat is promoted to be discharged to the outer side of the cutter head through the excellent heat conduction performance of aluminum alloy.

Description

TECHNICAL FIELD

[0001] The utility model belongs to power cutter tower technical field, concretely relates to a power cutter tower internal heat radiation structure. BACKGROUND

[0002] Power cutter tower is evolved from common servo cutter tower, compared with common servo cutter tower, power cutter tower is additionally installed with a set of power device in the inside to drive cutter to complete independent rotation, thereby realizing a series of complex turning, milling, drilling, attack, carving and other processing actions on numerical control lathe. And it is mainly used for processing precision parts, batch processing of non-standard shaft parts.

[0003] In the actual work of power cutter tower, due to the complex structure of power cutter tower, the compact space, the heat generated by rotating element rotation, meshing makes the internal temperature of cutter tower rise rapidly, causes the rotation precision to reduce, influences the machining accuracy. Therefore, it is necessary to control the problem of excessively high internal temperature of power cutter tower. However, due to the size of cutter tower as a whole is limited by the size of the matched machine tool, therefore, the temperature rise problem cannot be controlled by increasing the cavity volume. And the cutter tower needs to use coolant during processing, and the open cavity cannot be used to achieve heat dissipation. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at providing a power cutter tower internal heat radiation structure, which improves the temperature rise phenomenon by changing the internal component structure, and solves the deficiencies in the prior art.

[0005] The utility model provides the following technical scheme:

[0006] A power cutter tower internal heat radiation structure, comprising a cutter head, a transmission shaft and a power motor, a power cutter shaft seat is arranged in the cutter head, a transmission shaft is installed at one end of the power cutter shaft seat, the power cutter shaft seat comprises a gear box body and a heat dissipation cover, the heat dissipation cover is installed at the front end of the gear box body, a heat dissipation disc is installed on the outer side of the heat dissipation cover, the heat dissipation cover comprises a disc body and a ring body, the ring body is arranged on the upper surface of the disc body, a plurality of annular bodies are arranged in the ring body.

[0007] Preferably, a ring groove is arranged on the side surface of the ring body, and a positioning notch is symmetrically arranged on the side surface of the disc body.

[0008] Preferably, a sealing ring is installed on the ring groove.

[0009] Preferably, the plurality of annular bodies are concentrically and equally spaced.

[0010] Preferably, a positioning hole matched with the positioning notch is arranged on the front end surface of the gear box body, and a via hole matched with the positioning notch and the positioning hole is arranged on the heat dissipation disc.

[0011] Preferably, the positioning notch and the positioning hole are both semicircular in cross section.

[0012] Preferably, a plurality of threaded holes I are arranged on the circumference of the heat dissipation cover, and a plurality of countersunk holes I are arranged on the circumference of the heat dissipation disc, the countersunk holes I corresponding to the threaded holes I.

[0013] Preferably, a plurality of threaded holes II are arranged on the circumference of the front end surface of the gear box body, and a plurality of countersunk holes II are arranged on the circumference of the heat dissipation disc, the countersunk holes II corresponding to the threaded holes II.

[0014] Preferably, the gear box body is made of nodular cast iron material, and the heat dissipation cover and the heat dissipation disc are made of aluminum alloy material.

[0015] Preferably, the power motor is in transmission connection with one end of the transmission shaft.

[0016] Overall, compared with the prior art, the above technical scheme conceived by the utility model can achieve the following beneficial effects:

[0017] 1) The gear box body is still made of nodular cast iron material, the front end surface of the gear box body is hollowed out, and the heat dissipation cover and the heat dissipation disc are installed, and the heat dissipation cover and the heat dissipation disc are made of aluminum alloy material, so that the heat is discharged to the outside of the cutter disc by utilizing the excellent heat conduction performance of the aluminum alloy.

[0018] 2) The structure of the heat dissipation cover is optimized and adjusted, and the contact area of the heat dissipation cover and the heat flow inside the gear box body is further increased by utilizing the multi-layer annular heat dissipation structure distribution of the annular body, so that heat absorption and heat conduction are better achieved.

[0019] 3) Meanwhile, the heat dissipation disc is designed as an aluminum disc cover, the heat of the heat dissipation cover is more quickly conducted to the heat dissipation disc, a large area is in contact with the external air / cutting fluid, the working condition under high-speed operation is greatly improved, and the internal temperature rise problem of the cutter tower is relieved. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a partial explosion schematic view of the power cutter tower during work of the utility model;

[0021] Figure 2 is a partial assembly structure view of the internal heat dissipation structure of the power cutter tower of the utility model;

[0022] Figure 3 is a partial disassembly structure view of the internal heat dissipation structure of the power cutter tower of the utility model;

[0023] Figure 4 is an assembly structure schematic view of the heat dissipation disc and the heat dissipation cover of the utility model;

[0024] Figure 5is the specific structure schematic diagram of the heat dissipation cover of the utility model;

[0025] Figure 6 is the specific structure schematic diagram of the heat dissipation disc of the utility model.

[0026] The marks in the drawing are as follows:

[0027] 1-power motor;2-transmission shaft;3-cutter head;4-power cutter shaft base;5-gear box body;6-heat dissipation cover;7-heat dissipation disc;8-disc body;9-ring body;10-ring body;11-ring groove;12-positioning notch;13-positioning hole;14-via hole;15-counter bore hole two;16-threaded hole one;17-counter bore hole one;18-threaded hole two. DETAILED DESCRIPTION

[0028] The specific embodiments of the utility model are described in detail below in combination with the drawings, so that the person skilled in the art can more clearly understand how to practice the utility model. Although the utility model is described in combination with its preferred specific embodiments, these embodiments are only illustrative, not limiting the scope of the utility model.

[0029] As shown in the accompanying Figure 1 A power cutter tower internal heat dissipation structure, including cutter head 3, transmission shaft 2 and power motor 1, power motor 1 drives the power element in cutter head 3 to rotate together through transmission shaft 2, and the power head and cutter fixed on cutter head 3 will rotate together with the internal power element to complete the cutting of workpiece.

[0030] As shown in the accompanying Figures 2-6 The cutter head 3 is provided with power cutter shaft base 4, and the power cutter shaft base 4 is provided with transmission shaft 2 at one end, the power cutter shaft base 4 includes gear box body 5 and heat dissipation cover 6, the heat dissipation cover 6 is installed at the front end of gear box body 5, the heat dissipation cover 6 is provided with heat dissipation disc 7 on the outer side, the heat dissipation cover 6 includes disc body 8 and ring body 9, the ring body 9 is arranged on the upper surface of disc body 8, and a plurality of ring bodies 10 are arranged in the ring body 9.

[0031] Specifically, the ring groove 11 is arranged on the side of the ring body 9, the positioning notches 12 are symmetrically arranged on the side of the disc body 8, the sealing ring is installed on the ring groove 11, and the ring groove 11 is isolated from the outside pollution and prevents the grease in the cavity from flowing out by installing the sealing ring.

[0032] Specifically, the plurality of ring bodies 10 are concentrically and equidistantly distributed, the plurality of ring bodies 10 are arranged in a plurality of layers, and the heat dissipation cover 6 and the gear box body 5 are further increased in contact area of heat flow, so that heat absorption and heat conduction are better realized.

[0033] Specifically, the front end surface of the gear box 5 is provided with a positioning hole 13 matched with the positioning notch 12, the positioning notch 12 is connected with the positioning hole 13 by bolts after the heat dissipation cover 6 is installed on the front end surface of the gear box 5, the heat dissipation cover 6 is compressed and the preliminary auxiliary positioning and fastening are realized, the heat dissipation disc 7 is provided with a through hole 14 matched with the positioning notch 12 and the positioning hole 13, and the connection of the positioning hole 13 and the positioning notch 12 is realized by the bolts passing through the through hole 14.

[0034] Specifically, the cross sections of the positioning notch 12 and the positioning hole 13 are semicircular, and the connection of the positioning notch 12 and the positioning hole 13 is facilitated.

[0035] Specifically, the heat dissipation cover 6 is provided with a plurality of threaded holes one 16 in the circumferential direction, the heat dissipation disc 7 is provided with a plurality of countersunk holes one 17 in the circumferential direction, the countersunk holes one 17 correspond to the threaded holes one 16, the threaded holes one 16 and the countersunk holes one 17 are connected by bolts, the heat dissipation cover 6 and the heat dissipation disc 7 are connected, the heat dissipation cover 6 and the heat dissipation disc 7 are ensured to be an integral whole during tool changing rotation, and operation noise is reduced.

[0036] Specifically, the front end surface of the gear box 5 is provided with a plurality of threaded holes two 18, the heat dissipation disc 7 is provided with a plurality of countersunk holes two 15 in the circumferential direction, the countersunk holes two 15 correspond to the threaded holes two 18, the countersunk holes two 15 and the threaded holes two 18 are connected by bolts, the heat dissipation disc 7 and the gear box 5 are connected, the heat dissipation disc 7 and the gear box 5 are ensured to be an integral whole during tool changing rotation, and operation noise is reduced.

[0037] Specifically, the gear box 5 is made of nodular cast iron material, that is, nodular cast iron QT450-10, and the front end surface of the gear box 5 is provided with a hollow structure for installing the heat dissipation cover 6, observation and adjustment during installation are facilitated, the gear box 5 is machined by a nine-axis turning and milling composite machining center, and the gear box is machined by one-time finishing, the heat dissipation cover 6 and the heat dissipation disc 7 are made of aluminum alloy material, that is, hard aluminum alloy 2A12-T4, the thermal conductivity coefficient of the aluminum alloy material is about 125-169 W / mk, the thermal conductivity coefficient of the nodular cast iron material is about 46-54 W / mk, and the excellent heat conduction performance of the aluminum alloy material promotes heat discharge to the outside of the cutter head 3.

[0038] Specifically, the power motor 1 is in transmission connection with one end of the transmission shaft 2, and the power motor 1 is used for providing a power source.

[0039] The utility model discloses a specific working principle:

[0040] The traditional gear box body 5 is made of whole steel, which is changed to be made of nodular cast iron material, the front end surface of the gear box body 5 is provided with a hollow structure, and the heat dissipation cover 6 and the heat dissipation disc 7 are installed, the heat dissipation cover 6 and the heat dissipation disc 7 are made of aluminum alloy material, the excellent heat conduction performance of the aluminum alloy material is utilized to promote the heat to be discharged to the outside of the cutter head 3, the structure of the heat dissipation cover 6 is optimized and adjusted, the multi-layer annular heat dissipation structure distribution of the annular body 10 is utilized to further increase the contact area of the heat dissipation cover 6 and the internal heat flow of the gear box body 5, and the heat absorption and heat conduction are better realized.

[0041] In addition, the original steel heat dissipation disc 7 mainly used for preventing the dirt from the outside into the cutter head 3 to affect the service life is designed to be an aluminum disc cover, the heat dissipation disc 7 is tightly attached to the heat dissipation cover 6 after installation, the heat of the heat dissipation cover 6 is more quickly conducted to the heat dissipation disc 7, the heat dissipation disc 7 is in large-area contact with the outside air / cutting fluid, the working condition under high-speed operation is greatly improved, and the internal temperature rise problem of the cutter tower is relieved.

[0042] The above only describes the preferred embodiments of the present application, but the protection scope of the present application is not limited to this, any modification and replacement based on the technical scheme and the application concept provided by the present application should be covered in the protection scope of the present application.

Claims

1. A power cutter internal heat dissipation structure, comprising a cutterhead (3), a transmission shaft (2) and a power motor (1), characterized in that: The cutter head (3) is internally provided with a power cutter shaft seat (4), one end of the power cutter shaft seat (4) is provided with a transmission shaft (2), the power cutter shaft seat (4) comprises a gear box body (5) and a heat dissipation cover (6), the heat dissipation cover (6) is installed at the front end of the gear box body (5), the heat dissipation cover (6) is provided with a heat dissipation disc (7) on the outer side, the heat dissipation cover (6) comprises a disc body (8) and a ring body (9), the ring body (9) is arranged on the upper surface of the disc body (8), and a plurality of annular bodies (10) are arranged in the ring body (9).

2. The internal heat dissipation structure of a power tool tower as claimed in claim 1, characterized in that: The ring body (9) is provided with a ring groove (11) on the side surface, and the disc body (8) is provided with a positioning notch (12) on the side surface.

3. The internal heat dissipation structure of a power tool tower as claimed in claim 2, characterized in that: The ring groove (11) is provided with a sealing ring.

4. The internal heat dissipation structure of a power tool tower as claimed in claim 1, characterized in that: The plurality of annular bodies (10) are concentrically and equidistantly distributed.

5. The internal heat dissipation structure of a power tool tower as claimed in claim 2, characterized in that: The front end surface of the gear box body (5) is provided with a positioning hole (13) matched with the positioning notch (12), and the heat dissipation disc (7) is provided with a through hole (14) matched with the positioning notch (12) and the positioning hole (13).

6. The internal heat dissipation structure of a power tool tower as claimed in claim 5, characterized in that: The cross sections of the positioning notch (12) and the positioning hole (13) are semicircular.

7. The internal heat dissipation structure of a power tool tower as claimed in claim 1, characterized in that: The heat dissipation cover (6) is provided with a plurality of threaded holes (16) circumferentially, the heat dissipation disc (7) is provided with a plurality of countersunk holes (17) circumferentially, and the countersunk holes (17) correspond to the threaded holes (16).

8. The internal heat dissipation structure of a power tool tower as claimed in claim 1, characterized in that: The front end surface of the gear box body (5) is provided with a plurality of threaded holes (18) circumferentially, the heat dissipation disc (7) is provided with a plurality of countersunk holes (15) circumferentially, and the countersunk holes (15) correspond to the threaded holes (18).

9. The internal heat dissipation structure of a power tool tower according to claim 1, characterized in that: The gear box body (5) is made of nodular cast iron material, and the heat dissipation cover (6) and the heat dissipation disc (7) are made of aluminum alloy material.

10. The internal heat dissipation structure of a power tool tower as claimed in claim 1, characterized in that: The power motor (1) is in transmission connection with one end of the transmission shaft (2).

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