CN213701797U - Rotary tool rest for turning large-arc shoulder shaft - Google Patents
Rotary tool rest for turning large-arc shoulder shaft Download PDFInfo
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- CN213701797U CN213701797U CN202022658845.3U CN202022658845U CN213701797U CN 213701797 U CN213701797 U CN 213701797U CN 202022658845 U CN202022658845 U CN 202022658845U CN 213701797 U CN213701797 U CN 213701797U
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Abstract
The utility model belongs to the field of machinery, concretely relates to a revolving knife rest for turning big circular arc shoulder axle. The technical scheme of the utility model as follows: a rotary tool rest for turning a large-arc shoulder shaft comprises a support, a transmission shaft, a clamping plate, a worm wheel, a worm, a hand wheel, a turning tool, a locking screw and a square rod, wherein the support is sleeved on the middle section of the transmission shaft, and the worm wheel is fixedly arranged on the lower section of the transmission shaft; the two clamping plates are respectively arranged on two sides of the support, the front end of the worm is arranged between the two clamping plates and meshed with the worm wheel to form a transmission pair, and the tail end of the worm is provided with the hand wheel; the turning tool is placed in the square hole in the upper section of the transmission shaft and is fixed through the locking screw; the square rod is fixedly arranged on the support. The utility model discloses a worm-worm gear drive drives the lathe tool head and rotates, and the circular bead department circular arc radius of big circular arc shoulder axle is cut out to the movement track of lathe tool head.
Description
Technical Field
The utility model belongs to the field of machinery, concretely relates to a revolving knife rest for turning big circular arc shoulder axle.
Background
The mining excavator is one of large-scale equipment of an open pit coal mine, and is mainly used for stripping soil layers and waste rocks of the open pit coal mine and mining coal. There are many large parts and components of mining excavators, such as: a pushing shaft in a pushing mechanism of a mining excavator is characterized in that each pushing shaft is several tons in weight, the length is about 4-6 meters, the size of the section of the joint of two shaft diameters is greatly different, and in order to reduce stress concentration, large arc transition is adopted at the joint of the two shaft diameters, and a large arc transition shaft is called a large arc shoulder shaft for short. Because the circular arc at the shoulder of the large-circular-arc shoulder shaft is very large, the radius size of the circular arc is difficult to control during turning, and the existing processing means cannot realize the processing target, thereby becoming a processing problem.
SUMMERY OF THE UTILITY MODEL
The utility model provides a revolving knife rest for turning big circular arc shoulder axle through worm-worm gear transmission, drives the turning tool bit and rotates, and the circular bead department circular arc radius of big circular arc shoulder axle is cut out to the movement track of turning tool bit.
The technical scheme of the utility model as follows:
a rotary tool rest for turning a large-arc shoulder shaft comprises a support, a transmission shaft, a clamping plate, a worm wheel, a worm, a hand wheel, a turning tool, a locking screw and a square rod, wherein the support is sleeved on the middle section of the transmission shaft, and the worm wheel is fixedly arranged on the lower section of the transmission shaft; the two clamping plates are respectively arranged on two sides of the support, the front end of the worm is arranged between the two clamping plates and meshed with the worm wheel to form a transmission pair, and the tail end of the worm is provided with the hand wheel; the turning tool is placed in the square hole in the upper section of the transmission shaft and is fixed through the locking screw; the square rod is fixedly arranged on the support.
Furthermore, the middle section of the transmission shaft is in transition fit with the support.
Furthermore, the rotary tool rest for turning the large-arc shoulder shaft is in interference fit with the worm gear, and a flat key is arranged at the fit position between the transmission shaft and the worm gear; the lower end of the transmission shaft is provided with threads, and the threads are provided with washers and nuts to enable the transmission shaft and the worm wheel to be connected into a whole.
Furthermore, the rotary tool rest for turning the large-arc shoulder shaft is characterized in that two sides of the support are planes, the two clamping plates are respectively arranged on the two planes, and the two clamping plates are fixed with the support into a whole through bolts.
Further, the number of the heads of the worm is 1, and the number of the teeth of the worm wheel is 72.
Clamping the large arc shoulder shaft by using a lathe chuck on a lathe, and supporting the other end of the large arc shoulder shaft by using a tip on a lathe tailstock; the rotary tool rest is arranged on the lathe tool rest. When the large circular arc shoulder cutting machine works, the lathe chuck rotates to drive the large circular arc shoulder shaft to rotate, the hand wheel on the rotary tool rest is rotated, the turning tool on the rotary tool rest is driven to rotate through worm-worm gear transmission, the large circular arc shoulder shaft is cut along a given turning track, and the machining process of the large circular arc shoulder is completed.
The utility model has the advantages that: the utility model discloses a worm-worm gear drive drives the lathe tool head and rotates, and the circular bead department circular arc radius of big circular arc shoulder axle is cut out to the movement track of lathe tool head, and the course of working can accurate control, has successfully solved difficult technical problem.
Drawings
FIG. 1 is a front view of a rotary tool holder for turning a large arc shoulder shaft;
FIG. 2 is a top view of a rotary tool holder for turning a large arc shoulder shaft;
FIG. 3 is a front view of a rotary tool holder for turning a large arc shoulder shaft mounted on a lathe in a machining state;
fig. 4 is a plan view of a state in which a rotary cutter head for turning a large arc shoulder shaft is mounted on a lathe.
Detailed Description
As shown in fig. 1 and 2, a rotary tool rest for turning a large arc shoulder shaft comprises a support 4, a transmission shaft 3, a clamping plate 9, a worm wheel 6, a worm 12, a hand wheel 13, a turning tool 2, a locking screw 1 and a square rod 11, wherein the support 4 is sleeved on the middle section of the transmission shaft 3, and the middle section of the transmission shaft 3 is in transition fit with the support 4; the worm wheel 6 is fixedly arranged at the lower section of the transmission shaft 3, the transmission shaft 3 and the worm wheel 6 are in interference fit, a flat key 5 is arranged at the fit position between the transmission shaft 3 and the worm wheel 6, the lower end of the transmission shaft 3 is provided with a thread, and the thread is provided with a gasket 7 and a nut 8 so that the transmission shaft 3 and the worm wheel 6 are connected into a whole; the two clamping plates 9 are respectively arranged on two sides of the support 4, the two sides of the support 4 are planes, the two clamping plates 9 are respectively arranged on the two planes, the two clamping plates 9 are fixed with the support 4 into a whole through bolts 10, the front end of the worm 12 is arranged between the two clamping plates 9 and meshed with the worm wheel 6 to form a transmission pair, and the tail end of the worm 12 is provided with the hand wheel 13; the turning tool 2 is placed in a square hole in the upper section of the transmission shaft 3 and is fixed through the locking screw 1; the square rod 11 is fixedly arranged on the support 4; the number of the heads of the worm 12 is 1, and the number of the teeth of the worm wheel 6 is 72.
The working process is as follows: as shown in fig. 3 and 4, a lathe chuck 21 on a lathe is used for clamping a large arc shoulder shaft 24, the other end of the large arc shoulder shaft 24 is arranged on a lathe tailstock 22 and is propped by a tip, and a square rod 11 of a rotary tool rest is arranged on a lathe tool rest 23; during operation lathe chuck 21 is rotatory, drive big circular arc shoulder axle 24 and rotate, twist grip 13 drives worm 12 and rotates, it rotates to drive worm wheel 6, worm 12 rotates 1 circle every time, worm wheel 6 rotates the angle 5 of a tooth, worm wheel 6 drives transmission shaft 3 and rotates, lathe tool 2 on the transmission shaft 3 rotates along with the rotation, lathe tool bit turning radius (the distance of 3 rotation centers of transmission shaft to lathe tool bit is turning radius) of lathe tool 2 on the transmission shaft 3 is adjusted according to the circular arc radius of big circular arc shoulder axle 24, the motion trail of lathe tool bit is exactly the cutting orbit of processing shoulder department 25 great circular arcs, cut big circular arc shoulder axle 24 along the turning orbit, accomplish the course of working to shoulder department 25.
Claims (5)
1. A rotary tool rest for turning a large-arc shoulder shaft is characterized by comprising a support, a transmission shaft, a clamping plate, a worm wheel, a worm, a hand wheel, a turning tool, a locking screw and a square rod, wherein the support is sleeved on the middle section of the transmission shaft, and the worm wheel is fixedly arranged on the lower section of the transmission shaft; the two clamping plates are respectively arranged on two sides of the support, the front end of the worm is arranged between the two clamping plates and meshed with the worm wheel to form a transmission pair, and the tail end of the worm is provided with the hand wheel; the turning tool is placed in the square hole in the upper section of the transmission shaft and is fixed through the locking screw; the square rod is fixedly arranged on the support.
2. The rotary tool holder for turning large arc shoulder shafts according to claim 1, wherein the middle section of the transmission shaft is transition fit with the support.
3. The rotary tool rest for turning the large arc shoulder shaft according to claim 1, wherein the transmission shaft and the worm gear are in interference fit, and a flat key is arranged at the fit position between the transmission shaft and the worm gear; the lower end of the transmission shaft is provided with threads, and the threads are provided with washers and nuts to enable the transmission shaft and the worm wheel to be connected into a whole.
4. The rotary tool holder for turning large arc shoulder shafts according to claim 1, wherein the two sides of the support are flat surfaces, two clamping plates are respectively arranged at the two flat surfaces, and the two clamping plates are fixed with the support into a whole through bolts.
5. The rotary tool holder for turning large circular shoulder shafts according to claim 1, wherein the number of the heads of the worm is 1, and the number of the teeth of the worm wheel is 72.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022658845.3U CN213701797U (en) | 2020-11-17 | 2020-11-17 | Rotary tool rest for turning large-arc shoulder shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022658845.3U CN213701797U (en) | 2020-11-17 | 2020-11-17 | Rotary tool rest for turning large-arc shoulder shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213701797U true CN213701797U (en) | 2021-07-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022658845.3U Active CN213701797U (en) | 2020-11-17 | 2020-11-17 | Rotary tool rest for turning large-arc shoulder shaft |
Country Status (1)
| Country | Link |
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| CN (1) | CN213701797U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112439909A (en) * | 2020-11-17 | 2021-03-05 | 沈阳太重挖掘机有限公司 | Rotary tool rest for turning large-arc shoulder shaft |
-
2020
- 2020-11-17 CN CN202022658845.3U patent/CN213701797U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112439909A (en) * | 2020-11-17 | 2021-03-05 | 沈阳太重挖掘机有限公司 | Rotary tool rest for turning large-arc shoulder shaft |
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