CN210633059U - Numerical control machine tool for machining double-lead special-shaped screw rod and automatically changing tool - Google Patents

Numerical control machine tool for machining double-lead special-shaped screw rod and automatically changing tool Download PDF

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Publication number
CN210633059U
CN210633059U CN201921351921.7U CN201921351921U CN210633059U CN 210633059 U CN210633059 U CN 210633059U CN 201921351921 U CN201921351921 U CN 201921351921U CN 210633059 U CN210633059 U CN 210633059U
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China
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double
tool
tool changing
screw rod
control machine
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CN201921351921.7U
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Chinese (zh)
Inventor
许慈
毕光明
张洪斌
郭永
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Nanjing Kangni Mechanical and Electrical Co Ltd
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Nanjing Kangni Mechanical and Electrical Co Ltd
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Abstract

The utility model discloses a digit control machine tool of automatic tool changing of two helical pitch dysmorphism screw rods of processing, including the lathe bed, the lathe bed on install the saddle, install tool changing mechanism on the saddle, tool changing mechanism include the motor, install two play axle speed reduction decollators on the output shaft of motor, two play axle speed reduction decollators and left double-layered knife tackle spare and right double-layered knife tackle spare of clamp be connected, left double-layered knife tackle spare and right double-layered knife tackle spare on be provided with the cutter of at least three kinds of types respectively, two liang of correspondences of cutter of every type are located same axis. The utility model discloses an degree of automation is higher, has solved screw rod course of working in-process multiple operation, a lot of clamping and has accomplished under thick, semi-smart, the finish milling problem, can improve production efficiency and processingquality, has improved product quality's stability, reduces artifical intensity of labour, and further promotion automation process has good application prospect.

Description

Numerical control machine tool for machining double-lead special-shaped screw rod and automatically changing tool
Technical Field
The utility model relates to a digit control machine tool especially relates to a digit control machine tool of automatic tool changing of two lead dysmorphism screw rods of processing.
Background
Due to the structural characteristics and the motion characteristics of the screw, the screw is widely applied to the fields of chemical engineering, rail transit, food processing, mechanical equipment manufacturing and the like. However, the screw has a complex spiral profile and high precision, and particularly, in the machining of the double-head screw, different machining procedures are realized by repeatedly carrying out tool setting and clamping on different machine tools, so that not only is the efficiency low, but also the precision cannot be guaranteed.
SUMMERY OF THE UTILITY MODEL
Utility model purpose: the utility model aims at providing a digit control machine tool of automatic tool changing of two lead journey dysmorphism screw rods of processing, degree of automation is higher, has solved the production quality and the efficiency problem of two lead journey dysmorphism screw rod multiple operation, clamping many times of processing.
The technical scheme is as follows: the utility model discloses a lathe bed, lathe bed on install the saddle, install tool changing mechanism on the saddle, tool changing mechanism include the motor, install two play axle speed reduction decollators on the output shaft of motor, two play axle speed reduction decollators press from both sides cutter unit spare and right side with a left side and press from both sides cutter unit spare and be connected, a left side press from both sides cutter unit spare and right side and press from both sides the cutter that is provided with three at least types on the cutter unit spare respectively, two liang of correspondences of cutter of every type are located same axis.
The bottom of the tool changing mechanism is connected with the support through a tool changing mechanism support frame, and the support is installed on the large carriage.
The cutter comprises a rough milling cutter, a semi-finish milling cutter and a finish milling cutter.
And a left cutting spindle support and a right cutting spindle support are respectively arranged on two sides above the large dragging plate, a left cutting unit is arranged on the left cutting spindle support, and a right cutting unit is arranged on the right cutting spindle support.
The left cutting unit and the right cutting unit respectively comprise a broach cylinder, a main shaft servo motor, a servo motor transmission assembly and a servo main shaft.
The top of the left cutting main shaft support and the top of the right cutting main shaft support are respectively provided with a left servo main shaft and a right servo main shaft, and the end surfaces of the right servo main shaft and the left servo main shaft are symmetrical along the axis of a machined workpiece.
An X-axis servo motor is installed at the bottom of the large dragging plate and drives an X-axis left-right spinning rod to rotate through an X-axis transmission assembly.
Has the advantages that: the utility model discloses an degree of automation is higher, has solved screw rod course of working in multiple processes, a lot of clamping and has accomplished under thick, semi-smart, the finish milling problem, accomplishes the multiple process through automatic tool changing, can general double-end dysmorphism screw rod's processing production, improves production efficiency and processingquality, reduces artifical intensity of labour, and further promotion automation process has good application prospect.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a side view of the present invention;
FIG. 3 is a schematic structural view of a tool changing mechanism of the present invention;
fig. 4 is a side view of the tool changing mechanism of the present invention.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
As shown in fig. 1 to 4, the utility model discloses a lathe bed 8, the big planker 10 is installed on lathe bed 8, and big planker 10 accessible Z axle servo motor 28 rotatory Z axle screw assembly 27 makes it remove along lathe Z direction. The machine tool rotates the Z-axis screw rod component 27 through the Z-axis servo motor 28 to drive the large carriage 10, the main spindle box component 29 drives the pneumatic chuck 30 and the X-axis left-right screw rod 11 to perform three-axis linkage or two-two linkage, and the spiral groove processing is performed on various double-head special-shaped screw rods with equal lead, variable lead, gradually-changed lead, equal groove depth and variable groove depth and novel self-designed screw rods. An X-axis servo motor 7 is installed at the bottom of the large dragging plate 10, and drives an X-axis left-right rotating screw rod 11 to rotate through an X-axis transmission assembly 6, so that the right servo spindle 1 and the left servo spindle 17 are driven to move along the X axis in an opposite or back-to-back mode.
A left cutting spindle support 13 and a right cutting spindle support 5 are respectively arranged on the left side and the right side above the large dragging plate 10, a left cutting unit is arranged on the left cutting spindle support 13, and the left cutting unit consists of a left broach cylinder 14, a left spindle servo motor 15, a left servo motor transmission assembly 16 and a left servo spindle 17; the right cutting unit is arranged on the right cutting spindle support and consists of a right broach cylinder 4, a right spindle servo motor 3, a right servo motor transmission assembly 2 and a right servo spindle 1. The top of the left cutting spindle support 13 and the top of the right cutting spindle support 5 are respectively provided with a left servo spindle 17 and a right servo spindle 1, and the end surfaces of the right servo spindle 1 and the left servo spindle 17 are symmetrical about the axis of a machined workpiece. The left main shaft servo motor 15 drives a cutter on a left servo main shaft 17 to rotate at a high speed through a left servo motor transmission assembly 16 for cutting, and the cutter on the main shaft realizes automatic cutter drawing and cutter loosening through a left cutter drawing cylinder 14.
The large carriage 10 is provided with a tool changing mechanism, as shown in fig. 3 and 4, the tool changing mechanism is located between the left cutting spindle support 13 and the right cutting spindle support 5, the tool changing mechanism comprises a servo motor 23, an output shaft of the servo motor 23 is provided with a double-output-shaft speed reducing divider 22, the double-output-shaft speed reducing divider 22 is connected with the left clamping tool assembly 19 and the right clamping tool assembly 21, three types of tools are respectively arranged on the left clamping tool assembly 19 and the right clamping tool assembly 21, the three types of tools include a rough milling cutter T3, a semi-finish milling cutter T2 and a finish milling cutter T1, and every two types of tools correspond to each other and are located on the same axis. The bottom of the tool changing mechanism is connected with a bracket 25 through a tool changing mechanism support frame 24, and the bracket 25 is arranged on the large carriage 10. The servo motor 23 drives the left clamping tool assembly 19 and the right clamping tool assembly 21 to rotate through the double-output-shaft speed reducing divider 22, switching among the rough milling cutter T3, the semi-finish milling cutter T2 and the finish milling cutter T1 is achieved, different cutters are replaced, machining of double-lead special-shaped screws can be achieved through the machine tool changing mechanism, multiple processes are completed under the condition that multiple processes, multiple times of clamping and multiple machine tool production are optimized to be one-time clamping, and production quality and efficiency of products are improved.
The utility model discloses a processing method of digit control machine tool includes following step:
(1) resetting the equipment, returning each servo motor to the original point, installing cutters on line, enabling three cutters of the left milling cutter 18 and the right milling cutter 20 to be zero, respectively installing three cutters of the left milling cutter 18 and the right milling cutter 20 on the left cutter clamping assembly 19 and the right cutter clamping assembly 21 respectively, and respectively defining a rough milling cutter T3, a semi-finish milling cutter T2 and a finish milling cutter T1, wherein the left cutter and the right cutter are paired in pairs;
(2) the fine adjustment screw rod 12 is rotated through a hand wheel, so that the end surface of the right servo main shaft 1 and the end surface of the left servo main shaft 17 are symmetrical by the axis of a machined workpiece;
(3) installing a left milling unit consisting of a left broach cylinder 14, a left spindle servo motor 15, a left servo motor transmission component 16 and a left servo spindle 17 on a left cutting spindle support 13; a right milling unit consisting of a right broach cylinder 4, a right spindle servo motor 3, a right servo motor transmission component 2 and a right servo spindle 1 is arranged on a left cutting spindle support 5; the X-axis servo motor 7 drives an X-axis left and right screw rod 11 through an X-axis transmission assembly 6 to realize the opposite or back-to-back movement of the left milling unit and the right milling unit, so that the cutter is retracted to the maximum position of the X axis in the X axis direction;
(4) after the X axis reaches the maximum position, the cutter changing mechanism arranged on the bracket 25 and the cutter changing mechanism supporting frame 24 is connected with the double-output-shaft speed reducing divider 22 through the servo motor 23, so that the left cutter clamping assembly 19 and the right cutter clamping assembly 21 rotate 60 degrees anticlockwise, and the axes of two groups of opposite T3 rough milling cutters are positioned on the axes of the right servo spindle 1 and the left servo spindle 17;
(5) the right broach cylinder 4 and the left broach cylinder 14 act and are in a cutter feeding state, the X-axis servo motor 7 rotates the X-axis left-right rotary screw rod 11 through the X-axis transmission assembly 6 to drive the left milling unit and the right milling unit to move oppositely to a cutter feeding coordinate, and the right broach cylinder 4 and the left broach cylinder 14 act to complete cutter feeding;
(6) the tool changing mechanism arranged on the bracket 25 and the tool changing mechanism supporting frame 24 is connected with the double-output-shaft speed reducing divider 22 through the servo motor 23, so that the left tool clamping assembly 19 and the right tool clamping assembly 21 rotate clockwise by 60 degrees, and the left tool clamping assembly 19 and the right tool clamping assembly 21 are positioned at positions to be processed;
(7) the machine tool finishes the feeding action, the main shaft starts to be started, the machine tool rotates the Z-axis screw rod assembly 27 through the Z-axis servo motor 28 to drive the large dragging plate 10, the main shaft box assembly 29 drives the pneumatic chuck 30 and the X-axis left and right screw rods 11 to carry out three-axis linkage or two-to-two linkage, and rough machining is carried out on the special-shaped double-lead screw rods;
(8) after rough machining is finished and the X axis is retracted to a tool returning position, the tool changing mechanism arranged on the bracket 25 and the tool changing mechanism supporting frame 24 is connected with the double-output-shaft speed reducing divider 22 through the servo motor 23, so that the left tool clamping assembly 19 and the right tool clamping assembly 21 rotate 60 degrees anticlockwise, and tool buckling is finished;
(9) the right broach cylinder 4 and the left broach cylinder 14 act to loosen the cutter, and the X axis retracts to the maximum position to finish the cutter returning action;
(10) the tool changing mechanism arranged on the bracket 25 and the tool changing mechanism supporting frame 24 is connected with the double-output-shaft speed reducing divider 22 through the servo motor 23, so that the left tool clamping assembly 19 and the right tool clamping assembly 21 rotate anticlockwise or rotate 120 degrees clockwise, a finish milling cutter T1 or a semi-finish milling cutter T2 can be selected, the tool changing action and the process are similar to those of a rough milling cutter T3, and the finish machining is completed.

Claims (7)

1. The utility model provides a digit control machine tool of automatic tool changing of two lead dysmorphism screw rods of processing, includes the lathe bed, the lathe bed on install the saddle, install tool changing mechanism on the saddle, its characterized in that, tool changing mechanism include the motor, install two play axle speed reduction decollators on the output shaft of motor, two play axle speed reduction decollators be connected with left double-layered knife tackle spare and right double-layered knife tackle spare, left double-layered knife tackle spare and right double-layered knife tackle spare on be provided with the cutter of at least three kinds respectively, every two liang of correspondences of cutter of every kind are located the same axis.
2. The numerical control machine tool for machining the double-lead special-shaped screw rod with the automatic tool changing function as claimed in claim 1, wherein the bottom of the tool changing mechanism is connected with a support through a tool changing mechanism support frame, and the support is mounted on a large carriage.
3. The numerical control machine tool for machining the double-lead special-shaped screw with the automatic tool changing function as claimed in claim 1, wherein the tool comprises a rough milling cutter, a semi-fine milling cutter and a fine milling cutter.
4. The numerical control machine tool for machining the double-lead special-shaped screw rod with the automatic tool changing function as claimed in claim 1, wherein a left cutting spindle support and a right cutting spindle support are respectively mounted on two sides above the large dragging plate, a left cutting unit is mounted on the left cutting spindle support, and a right cutting unit is mounted on the right cutting spindle support.
5. The numerical control machine tool for machining the double-lead special-shaped screw rod with the automatic tool changing function as claimed in claim 4, wherein the left cutting unit and the right cutting unit respectively comprise a broach cylinder, a main shaft servo motor, a servo motor transmission assembly and a servo main shaft.
6. The numerical control machine tool for machining the double-lead special-shaped screw rod with the automatic tool changing function as claimed in claim 4, wherein a left servo spindle and a right servo spindle are respectively mounted at the tops of the left cutting spindle support and the right cutting spindle support, and the end faces of the right servo spindle and the left servo spindle are symmetrical about the axis of a machined workpiece.
7. The numerical control machine tool for automatically changing the tool for machining the double-lead special-shaped screw rod according to claim 1, wherein an X-axis servo motor is mounted at the bottom of the large dragging plate and drives an X-axis left and right screw rod to rotate through an X-axis transmission assembly.
CN201921351921.7U 2019-08-20 2019-08-20 Numerical control machine tool for machining double-lead special-shaped screw rod and automatically changing tool Active CN210633059U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921351921.7U CN210633059U (en) 2019-08-20 2019-08-20 Numerical control machine tool for machining double-lead special-shaped screw rod and automatically changing tool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921351921.7U CN210633059U (en) 2019-08-20 2019-08-20 Numerical control machine tool for machining double-lead special-shaped screw rod and automatically changing tool

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CN210633059U true CN210633059U (en) 2020-05-29

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112222883A (en) * 2020-09-24 2021-01-15 上海大隆机器厂有限公司 Shaft bracket device for milling large screw rotor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112222883A (en) * 2020-09-24 2021-01-15 上海大隆机器厂有限公司 Shaft bracket device for milling large screw rotor

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