TW201424928A - Speed-reduction mechanism and tool change device having the same - Google Patents

Abstract

Disclosed are a speed-reduction mechanism and a tool change device having the same. The speed-reduction mechanism comprises a motor, a gear box, and a coupling flange. The coupling flange is mounted to the motor and is coupled to a fixed chassis of the tool change device. The gear box is coupled to the motor and comprises a power output end that is coupled to a tool holding frame of the tool change device. As such, the distance from the tool holding frame to the fixed chassis is reduced to enhance space utilization of a machining center that includes the tool change device.

Description

Speed reduction mechanism and tool change device having the same

The present invention relates to a speed reduction mechanism, and more particularly to a speed reduction mechanism and a tool change device having the speed reduction mechanism.

Pressing, the composition of the speed reduction mechanism usually includes a motor and a reduction gear box, which are set for the purpose of power output and transmission, and are therefore often assembled on a fixed body, thereby stably applying power to a driven member. However, the aforementioned speed reduction mechanism is inconvenient to be used in practical applications or due to different driven objects.

For example, the tool change device 1 of the integrated cutting machine shown in FIG. 1 includes a speed reduction mechanism composed of a reduction gear box 2 and a motor 3, wherein the top edge of the reduction gear box 2 is composed of a plurality of bolts 4 The fixed reduction gear box 2 has a power output shaft 2a. The motor 3 is coupled to the reduction gear box 2 and located on a side away from the fixed body 5. The driven member of the tool change device 1 is a tool holder 6 on which a plurality of tool holders 7 are mounted. However, the speed reduction shaft of the output shaft 2a is not long, and therefore the transmission shaft 8 must be sleeved on the output shaft 2a, and one end of the transmission shaft 8 is fixed to the holder 6. Thereby, the distance between the tool holder 6 and the fixed body 5 is increased to prevent the rotating tool holder 7 from inadvertently colliding with the fixed body 5. Moreover, the tool changer 1 is further sleeved on the outside of the drive shaft 8 with a sleeve 9 including a bearing for stability and protection. The drive shaft 8, in this way, not only adds assembly procedures, but also increases the cost.

Secondly, the distance L1 between the tool holder 6 and the fixed body 5, plus the distance L2 from the fixed body 5 to the rear end of the motor 3, causes the height of the entire tool change device 1 to increase a lot, which is not conducive to the space of the integrated cutting machine. use.

In view of the above, the main object of the present invention is to provide a speed reduction mechanism and a tool change device having the same, which has the advantages of cost saving and effective use of space.

In order to achieve the above object, the speed reduction mechanism provided by the present invention comprises a motor, a reduction gear box and a connecting flange. The motor has a front end and a rear end; the reduction gear box is coupled to the front end of the motor and has a power output end; the connecting flange is coupled to the motor.

The present invention further provides a tool changing device having a speed reducing mechanism, comprising a tool holder; and a speed reducing mechanism disposed on one side of the tool holder, the speed reducing mechanism having a power output end and a connecting flange, the power output end The tool holder is coupled to the side of the power output end.

Thereby, the power transmission of the speed reduction mechanism is not lost, and the height of the entire tool change device can be compressed.

In order that the present invention may be more clearly described, the preferred embodiments are illustrated in the accompanying drawings.

Referring to FIG. 2, a tool change device 100 having a speed reduction mechanism 10 according to a preferred embodiment of the present invention is a part of a comprehensive cutting machine including a tool holder 20, the knife A plurality of shanks 30 are provided on the frame 20. The speed reduction mechanism 10 is disposed on one side of the tool holder 20 and includes a motor 12, a reduction gear box 14 and a connecting flange 16. among them:

The motor 12 has a front end 12a and a rear end 12b connected to the rear cover 122. The front end of the housing 121 has the front end 12a, and the rear cover 122 has the rear end. 12b.

The reduction gear box 14 is coupled to the front end 12a of the motor 12, that is, the reduction gear box 14 is fixed to the housing 121. The reduction gear box 14 has a power output end formed by a power output shaft 141, and a part of the output shaft 141. The protrusion protrudes outwardly and is directly fixed to the holder 20, and is driven by the activated motor 12 to drive the holder 20 to rotate. Since the reduction gear box 14 is a general specification, it will not be described here.

The connecting flange 16 is coupled to the motor 12. Preferably, the connecting flange 16 is integrally formed with the housing 121 or the rear cover 122. In this embodiment, the connecting flange 16 is rearward. The cover 122 is integrally formed. In other words, the connecting flange 16 is located on one side of the output shaft 141. As shown in FIG. 2, the speed reduction mechanism 10 is assembled by a plurality of bolts 18 passing through the connecting flange 16, and then locked into a fixed body 101. In this state, the tool holder 20 is The distance L3 of the fixed body 101 is greater than the length of the shank 30, so that the rotating shank 30 can be prevented from inadvertently colliding with the fixed body 101, thereby ensuring the smooth operation of the implement.

In the above embodiment, the speed reduction mechanism 10 is configured to drive the tool holder 20, and the speed reduction mechanism of the type has a lower cost and a lower price, which is easy for the relevant industry to use. The structure of the present embodiment is much smaller than the distance L1+L2 between the tool holder 6 and the fixed body 5 in the structure shown in FIG. 1 because the distance L3 between the tool holder 20 and the fixed body 101 is much smaller. Therefore, in the case where the power transmission efficiency of the speed reduction mechanism 10 is not impaired, the height of the entire tool change device 100 is reduced, which is advantageous for the space utilization of the integrated cutting machine.

3 shows a tool change device 200 having a speed reduction mechanism 40 according to another preferred embodiment of the present invention. The tool change device 200 has a tool holder 20 and a tool holder 30 of the same embodiment. The difference is that the power output end of the reduction gear box 42 of the speed reduction mechanism 40 is not a power output shaft structure, but a rotary 421 structure that is combined by surface contact, that is, the turntable 421 is locked by a plurality of bolts 44. On the tool holder 20, the speed of this type of speed reduction mechanism may be higher, but due to the large bonding force with the tool holder 20, it is possible to drive a large load object. The connecting flange 46 of the speed reducing mechanism 40 is also locked to the rear end (rear cover) of the motor 48 through the bolt 47 so as to be fixed to a fixed body 201, so as to obtain the effect of compressing the height of the entire tool changing device 200, so that The integrated cutting machine can make good use of the space.

It should be noted that the connecting flange of the present invention is preferably a power output end away from the speed reducing mechanism. In the above embodiments, although it is disposed on the motor back cover, it should not be limited thereto. For example, the connecting method can be used. The blue change is set on the housing of the motor, and the effect of compressing the height of the entire tool changer can also be obtained.

The above is only a preferred embodiment of the present invention, and equivalent changes to the scope of the present invention and the scope of the patent application are intended to be included in the scope of the present invention.

100, 200‧‧‧ tool changer

101, 201‧‧‧ fixed body

10‧‧‧Deceleration mechanism

12‧‧‧ motor

12a‧‧‧ front end

12b‧‧‧ Backend

121‧‧‧Shell

122‧‧‧Back cover

14‧‧‧Reduction gearbox

141‧‧‧Output shaft

16‧‧‧Connecting flange

18‧‧‧ bolt

20‧‧‧Tool holder

30‧‧‧Cutter

40‧‧‧Deceleration mechanism

42‧‧‧Reduction gearbox

421‧‧‧ Turntable

44‧‧‧ bolt

46‧‧‧Connecting flange

47‧‧‧ bolt

48‧‧‧Motor

L3‧‧‧ Distance from the knife holder to the fixed body

1 is a side view showing the structure of a tool changer of a known integrated cutting machine; FIG. 2 is a side view showing a tool changer having a speed reduction mechanism according to a preferred embodiment of the present invention; and FIG. BRIEF DESCRIPTION OF THE DRAWINGS A tool changer having a speed reduction mechanism according to another preferred embodiment of the present invention is illustrated.

100‧‧‧Tool changer

101‧‧‧Fixed body

10‧‧‧Deceleration mechanism

12‧‧‧ motor

12a‧‧‧ front end

12b‧‧‧ Backend

121‧‧‧Shell

122‧‧‧Back cover

14‧‧‧Reduction gearbox

141‧‧‧Output shaft

16‧‧‧Connecting flange

18‧‧‧ bolt

20‧‧‧Tool holder

30‧‧‧Cutter

L3‧‧‧ Distance from the knife holder to the fixed body

Claims (10)

A speed reduction mechanism includes: a motor having a front end and a rear end; a reduction gear box coupled to the front end of the motor and having a power output end; and a connecting flange coupled to the motor. The speed reduction mechanism of claim 1, wherein the motor has a casing and a rear cover, the front edge of the casing forms a front end of the motor, and the rear cover connects the casing and has the rear end; the connecting flange is Connected to the housing or back cover of the motor. The speed reduction mechanism of claim 2, wherein the connecting flange is integrally formed with the housing or the back cover of the motor. The speed reduction mechanism of claim 1, wherein the power output end of the reduction gear box is a power output shaft. The speed reduction mechanism of claim 1, wherein the power output end of the reduction gear box is a turntable. A tool change device having a speed reduction mechanism, comprising: a tool holder; a speed reduction mechanism disposed on one side of the tool holder, the speed reduction mechanism having a power output end and a connection flange, the power output end connecting the The tool holder is disposed on a side opposite to the power output end. A tool change device having a speed reduction mechanism according to claim 6, wherein the speed reduction mechanism has a motor and a reduction gear box, and the motor has a casing and a back cover, The reduction gear box is coupled to the housing of the motor and has the power output end coupled to the housing or the back cover of the motor. A tool change device having a speed reduction mechanism according to claim 7, wherein the connecting flange is integrally formed with a casing or a rear cover of the motor. The tool change device of claim 7, wherein the power output end of the reduction gear box is a power output shaft, and the power output shaft is coupled to the tool holder. The tool changing device of claim 7, wherein the power output end of the reduction gear box is a turntable, and the turntable is coupled to the tool holder.