Novel milling tool rest transmission structure

Abstract

The utility model discloses a novel milling knife rest transmission structure which is characterized in that a milling box body is arranged above a ram, and a speed reducer and a main motor are arranged on one side of the milling box body; a transmission lever is arranged in the ram and the milling box body; a milling main shaft is arranged at the lower end of the transmission lever through a coupler; meshed transmission gears are arranged at the driving ends of the speed reducer and the main motor and the upper ends of the transition shaft and the transmission lever; two labyrinth sealing structures are arranged at the upper end and the lower end of the transmission gear of the transmission lever and on the transmission lever; a support bearing is arranged below each labyrinth sealing structure and between the ram and the transmission lever; a fixed supporting sleeve is arranged above the coupler and between the ram and the transmission lever, and a supporting bearing is arranged between the fixed supporting sleeve and the transmission lever; two suspension supporting sleeves which are arranged up and down at intervals are arranged above the fixed supporting sleeve and between the ram and the transmission lever, and supporting bearings are arranged between the two suspension supporting sleeves and the transmission lever. The utility model can ensure the high speed and stability of the milling function, and has the characteristics of high transmission rotating speed and strong transmission stability.

Description

TECHNICAL FIELD

[0001] The utility model relates to a novel milling tool holder transmission structure and belongs to the mechanical technical field. BACKGROUND

[0002] With the rapid development of equipment manufacturing industry, the performance requirement of various parts processing to machine tool is higher and higher, especially the composite requirement of machine tool is higher and higher, many vertical lathes integrate milling function, want to guarantee high speed, high precision and high stability of milling, adopt novel milling tool holder transmission structure is essential, the transmission speed of the existing vertical tool holder of integrating milling function is very low, and the stability is difficult to guarantee. SUMMARY

[0003] In order to overcome the insufficient of prior art, the utility model provides a novel milling tool holder transmission structure, this structure can guarantee the high speed and stability of milling function, has the characteristics such as high transmission speed, strong transmission stability and high transmission efficiency.

[0004] The utility model discloses a novel milling tool holder transmission structure, including speed reducer and main motor, ram, transmission gang, shaft coupling, milling main shaft, transmission gear, labyrinth seal structure, support bearing, suspension support sleeve and fixed support sleeve, the ram top is installed with milling box body, and the speed reducer and main motor are installed on one side in milling box body.

[0005] The driving end of speed reducer and main motor faces down, and a vertical transition shaft is arranged between the driving end of speed reducer and main motor and transmission gang, and a transmission gear is arranged on the shaft body of transition shaft and the upper end of transmission gang and is engaged with the transmission gear on the driving end of speed reducer and main motor.

[0006] A fixed support sleeve is arranged between the ram and transmission gang above the shaft coupling, and a support bearing is arranged between the fixed support sleeve and transmission gang.

[0007] Further, the fixed support sleeve and the adjacent suspension support sleeve above are arranged in a spaced manner, and the shaft coupling and the fixed support sleeve above are arranged in a spaced manner.

[0008] Further, two horizontal direction top blocks are arranged in the two positions of the ram on both sides of each suspension support sleeve, and the end of the top block abuts against the suspension support sleeve.

[0009] The transmission structure of the utility model has the advantages of compactness, simplicity, reliability, convenient assembly and adjustment, low manufacturing cost, rigid connection between each transmission component, high overall rigidity and good stability, no limitation by conventional structures, wide application in different scenes, high transmission speed, strong transmission stability and high transmission efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0010] The utility model is further described below in combination with the drawings and specific embodiments.

[0011] Figure 1 is a structural schematic view of the utility model.

[0012] Figure 2 is Figure 1 A enlarged schematic view of the utility model.

[0013] Figure 3 is Figure 1 B enlarged schematic view of the utility model.

[0014] Figure 4 is Figure 1 C enlarged schematic view of the utility model.

[0015] Mark in the drawing:

[0016] 1, speed reducer and main motor, 2, ram, 3, transmission bar, 4, shaft coupling, 5, milling spindle, 6, transmission gear, 7, labyrinth seal structure, 8, support bearing, 9, suspension support sleeve, 10, top block, 11, fixed support sleeve. DETAILED DESCRIPTION

[0017] As Figure 1 -4 shows, a kind of new milling tool holder transmission structure, including speed reducer and main motor 1, ram 2, transmission bar 3, shaft coupling 4, milling spindle 5, transmission gear 6, labyrinth seal structure 7, support bearing 8, suspension support sleeve 9 and fixed support sleeve 11, the milling box body is installed on the ram 2 top, speed reducer and main motor 1 are installed in one side on milling box body;Ram 2 and milling box body are installed with a vertical direction transmission bar 3, the lower end of transmission bar 3 is installed with a milling spindle 5 by shaft coupling 4;Shaft coupling 4 and milling spindle 5 are located in the ram 2.

[0018] The driving end of the speed reducer and the main motor 1 is downward, a vertical transition shaft is arranged between the driving end of the speed reducer and the main motor 1 and the transmission lever 3, and a transmission gear 6 is arranged on the shaft body of the transition shaft and the upper end of the transmission lever 3 and is in mesh with each other; two labyrinth seal structures 7 are arranged on the transmission lever 3 and are arranged between the milling box and the transmission lever 3; a support bearing 8 is arranged between the slide block 2 and the transmission lever 3 below each labyrinth seal structure 7.

[0019] A fixed support sleeve 11 is arranged between the slide block 2 and the transmission lever 3 above the shaft coupling 4, and a support bearing 8 is arranged between the fixed support sleeve 11 and the transmission lever 3; two suspended support sleeves 9 are arranged between the slide block 2 and the transmission lever 3 above the fixed support sleeve 11, and a support bearing 8 is arranged between the suspended support sleeve 9 and the transmission lever 3; two horizontal clamping blocks 10 are arranged in the slide block 2 on both sides of each suspended support sleeve 9, and the end of the clamping block 10 clamps the suspended support sleeve 9.

[0020] The fixed support sleeve 11 is arranged in a spaced manner with the adjacent suspended support sleeve 9 above, and the shaft coupling 4 is arranged in a spaced manner with the fixed support sleeve 11 above.

[0021] In use, the slide block 2 is the base, the milling box is arranged above the slide block 2, the speed reducer and the main motor 1 are arranged on the milling box 1, power is transmitted to the transmission lever 3 through the transmission gear 6, and the power is transmitted to the milling spindle 5 through the transmission lever 3 and the shaft coupling 4.

[0022] The labyrinth seal structure 7 is arranged between the milling box and the transmission lever 3, the support bearing 8 ensures that the upper end of the transmission lever 3 and the box are fixed, the support bearing 8 and the suspended support sleeve 9 are combined in the middle support of the transmission lever 3, the suspended support sleeve 9 is adjusted and fastened through the clamping block 10, the support bearing 8 and the fixed support sleeve 11 are combined in the lower end of the transmission lever 3, the fixed support sleeve 11 is in transition fit with the slide block 2, and the absolute stability of the lower end of the transmission lever 3 is ensured, so as to complete the work of the whole transmission system.

[0023] The upper end of the transmission lever 3 is provided with a labyrinth seal structure 7, which is installed between the milling box and the transmission lever 3. The labyrinth seal structure 7 does not directly contact and does not produce friction, so it is not limited by the rotating speed of the transmission lever 3, which is a prerequisite for ensuring high rotating speed of transmission. At the same time, it can also prevent the leakage of lubricating oil in the milling box. The support bearing 8 in the milling box ensures the fixation of the upper end of the transmission lever 3 and the milling box. The support in the middle of the transmission lever 3 adopts the combination of the support bearing 8 and the floating support sleeve 9, which can easily adjust the position of the floating support sleeve 9 through the jacking block 10, thereby ensuring the stability of the transmission lever 3. The fixation of the lower end of the transmission lever 3 adopts the combination of the support bearing 8 and the fixed support sleeve 11. The fixed support sleeve 11 is in transition fit with the ram 2. The fixed support sleeve 11 can effectively limit the radial runout of the transmission lever 3 during transmission, ensuring the absolute stability of the lower end of the transmission lever 3, thereby realizing the stable work of the milling spindle 5. The novel milling tool holder transmission structure has the characteristics of high transmission rotating speed, strong transmission stability, and high transmission efficiency. It can be used as a milling tool holder transmission for vertical lathes, and can also be popularized on other long shafts, high speed, and high stability transmission mechanisms.

Claims

1. A novel transmission structure of a milling tool holder, characterized by: It includes speed reducer and main motor (1), ram (2), transmission bar (3), coupling (4), milling spindle (5), transmission gear (6), labyrinth seal structure (7), support bearing (8), suspension support sleeve (9) and fixed support sleeve (11), the milling box is installed above the ram (2), and the speed reducer and main motor (1) are installed on one side of the milling box; A vertical transmission bar (3) is installed in the ram (2) and the milling box, and a milling spindle (5) is installed at the lower end of the transmission bar (3) through a coupling (4); The coupling (4) and the milling spindle (5) are located in the ram (2); The driving end of the speed reducer and main motor (1) faces downward, a vertical transition shaft is arranged between the driving end of the speed reducer and main motor (1) and the transmission bar (3), and a transmission gear (6) is arranged on the shaft body of the transition shaft and the upper end of the transmission bar (3); Two labyrinth seal structures (7) are installed on the transmission bar (3) at the upper and lower ends of the transmission gear (6), and the two labyrinth seal structures (7) are arranged in the milling box and between the milling box and the transmission bar (3); A support bearing (8) is installed between the ram (2) and the transmission bar (3) below each labyrinth seal structure (7); A fixed support sleeve (11) is installed between the ram (2) and the transmission bar (3) above the coupling (4), and a support bearing (8) is arranged between the fixed support sleeve (11) and the transmission bar (3); Two suspension support sleeves (9) arranged in an upper and lower interval are installed between the ram (2) and the transmission bar (3) above the fixed support sleeve (11), and a support bearing (8) is arranged between the two suspension support sleeves (9) and the transmission bar (3).

2. A new type of milling tool holder transmission structure according to claim 1, characterized in that: The fixed support sleeve (11) and the adjacent suspension support sleeve (9) above are arranged in an interval, and the coupling (4) and the fixed support sleeve (11) above are arranged in an interval.

3. A new type of milling tool holder transmission structure according to claim 1, characterized in that: Two horizontal direction tight blocks (10) are installed in the ram (2) at the two positions, and the end of the tight block (10) tightens the suspension support sleeve (9).

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