CN215700211U - Machine tool and aligning device thereof - Google Patents
Machine tool and aligning device thereof Download PDFInfo
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- CN215700211U CN215700211U CN202122428525.3U CN202122428525U CN215700211U CN 215700211 U CN215700211 U CN 215700211U CN 202122428525 U CN202122428525 U CN 202122428525U CN 215700211 U CN215700211 U CN 215700211U
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Abstract
The application relates to the technical field of machine tools, in particular to a machine tool and an alignment device thereof, wherein the rear end of an alignment shaft is matched with one end of a clamping device facing a workpiece clamp, and the clamping device can drive the alignment shaft to extend out or retract; the front end of the alignment shaft is movably matched with the pressing arm in the axial direction, and the extending direction of the pressing arm is vertical to the extending direction of the alignment shaft; the elastic sleeve is sleeved on the aligning shaft and is positioned at the rear end of the pressing arm; one end of the safety switch opening rod is connected to the aligning shaft, the other end of the safety switch opening rod extends to a safety switch on the clamping device, and after the aligning shaft retracts, the other end of the safety switch opening rod can be in contact with the safety switch to trigger the safety switch to be closed; the safety switch is used for being connected with a cutter driving circuit of the machine tool, and the cutter driving circuit is communicated through the closing of the safety switch, so that the cutter driving device can move towards a workpiece to be machined. The application can ensure the accuracy of the machine tool in positioning and aligning the machined workpiece, and realize fine machining of the machined workpiece.
Description
Technical Field
The application relates to the technical field of machine tools, in particular to a machine tool and an alignment device thereof.
Background
The sealing cover is a device for sealing, and generally, a cylindrical blank workpiece is formed by stamping a steel plate, then an operator sleeves the cylindrical blank workpiece formed by stamping on a workpiece fixture of a machine tool, and presses the cylindrical blank workpiece to make a positioning end of the cylindrical blank workpiece contact and align with a positioning surface of the workpiece fixture so as to realize positioning and alignment.
However, it is often difficult to align the positioning end of the cylindrical blank workpiece in contact with the workpiece holder at every position by merely pressing the cylindrical blank workpiece by an operator, which results in inaccurate positioning of the seal housing and difficulty in fine machining of the seal housing.
Therefore, how to ensure the positioning and aligning accuracy of the machine tool on the machined workpiece so as to realize the fine machining of the machined workpiece is a technical problem to be solved by those skilled in the art at present.
SUMMERY OF THE UTILITY MODEL
The application provides a machine tool and an alignment device thereof to guarantee the accuracy of machine tool to the positioning alignment of a machined workpiece, and to realize the fine machining of the machined workpiece.
In order to solve the technical problem, the application provides the following technical scheme:
a machine tool alignment device, comprising: the alignment shaft, the safety switch opening rod, the elastic sleeve, the pressing arm and the safety switch are arranged on the positioning shaft; the rear end of the aligning shaft is used for being matched with one end, facing the workpiece clamp, of a clamping device of the machine tool, and the clamping device can drive the aligning shaft to extend out or retract; the front end of the aligning shaft is movably matched with the pressing arm in the axial direction, and the extending direction of the pressing arm is vertical to the extending direction of the aligning shaft so as to press a workpiece to be machined, which is clamped on the workpiece clamp; the elastic sleeve is sleeved on the aligning shaft and is positioned at the rear end of the pressing arm to provide a certain amount of buffer for backward movement of the pressing arm; one end of the safety switch opening rod is connected to the aligning shaft, the other end of the safety switch opening rod extends to a safety switch on the clamping device, and after the aligning shaft retracts, the other end of the safety switch opening rod can be in contact with the safety switch to trigger the safety switch to be closed; the safety switch is used for being connected with a cutter driving circuit of the machine tool, and the cutter driving circuit is communicated through the closing of the safety switch, so that the cutter driving device can move towards a workpiece to be machined.
The alignment device for a machine tool as described above, wherein it is preferable that the rear end of the alignment shaft is inserted into a workpiece positioning hole of a knock-out shaft which can be protruded or retracted inside the chucking device, to be fitted with the chucking device.
In the machine tool aligning device according to the above aspect, it is preferable that the pressing arm has a fitting hole penetrating through the front and rear sides, and the front end of the aligning shaft passes through the fitting hole of the pressing arm to be movably fitted to the pressing arm in the axial direction.
In the machine tool aligning device according to the above aspect, preferably, the aligning shaft has a screw thread at a front end thereof, and the positioning nut is screwed to the aligning shaft at a front end of the pressing arm.
In the machine tool aligning device according to the above aspect, it is preferable that the diameter of the front section of the aligning shaft is smaller than the diameter of the middle section of the aligning shaft, and the front end of the elastic sleeve contacts the rear end of the pressing arm and the rear end of the elastic sleeve contacts the front end of the middle section of the aligning shaft.
The machine tool aligning device as described above, wherein it is preferable that the diameter of the front end of the elastic sleeve is smaller than the diameter of the rear end of the elastic sleeve.
The machine tool aligning device as described above, wherein it is preferable that a diameter of a connecting portion of the rear section of the aligning shaft and the middle section of the aligning shaft is larger than other portions of the rear section of the aligning shaft to form a limit step at the connecting portion of the rear section of the aligning shaft and the middle section of the aligning shaft.
The alignment device for a machine tool as described above, wherein preferably, the rear section of the alignment shaft is provided with an ejector thread, the front end of the ejector thread is in contact with the rear end of the limit step, and the ejector thread is further engaged with the ejector sleeve.
A machine tool, comprising: the machine tool comprises a main spindle box, a machine tool body, a clamping device and a workpiece clamp; the rear end of the spindle box is connected to the front end of the machine tool body, the workpiece clamp is positioned at the part, higher than the machine tool body, of the rear end of the spindle box, extends backwards and is used for fixing a workpiece to be machined, and the clamping device is positioned at the upper end of the machine tool body; further comprising: the machine tool aligning device according to any one of the above claims, wherein the machine tool aligning device is inserted into a front end of the clamping device, and the clamping device is capable of driving the machine tool aligning device to extend forward or retract backward to press the workpiece to be machined, which is clamped on the workpiece holder.
The machine tool as described above, wherein preferably, a pneumatic driving device is connected to a rear end of the clamping device, and the machine tool aligning device inserted into the clamping device is driven by the pneumatic driving device to extend forward or retract backward.
Compared with the background technology, the machine tool alignment device and the machine tool provided by the application can ensure that each position of the positioning end of the workpiece to be machined is in contact alignment with the workpiece clamp, so that the workpiece to be machined is accurately positioned, and the workpiece to be machined is precisely machined; in addition, because the machine tool alignment device and the machine tool in the application are both provided with the safety switch, the tool driving device can be prevented from being started when the machine tool alignment device is ejected out, so that equipment damage or personnel injury is avoided.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to the drawings.
FIG. 1 is a schematic view of a machine tool provided in an embodiment of the present application;
FIG. 2 is a schematic view of a machine tool alignment device provided in an embodiment of the present application;
FIG. 3 is a schematic view of an alignment axis of the machine tool alignment device provided in the embodiment of the present application;
FIG. 4 is a schematic view of a pressing arm of the machine tool aligning device provided by the embodiment of the present application;
FIG. 5 is a front view of an elastic sleeve of the machine tool aligning device provided by the embodiment of the present application;
FIG. 6 is a right side view of the elastic sleeve of the machine tool aligning device provided in the embodiment of the present application;
fig. 7 is a schematic view of a workpiece holder of a machine tool according to an embodiment of the present application.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative only and should not be construed as limiting the utility model.
As shown in fig. 1 and 2, the present application provides a machine tool alignment device 150 comprising: a aligning shaft 151, a safety switch opening lever 153, an elastic sleeve 154, a pressing arm 155 and a safety switch 157;
wherein the rear end of the aligning shaft 151 is adapted to engage with an end of the clamping device 140 of the machine tool facing the workpiece holder 160, and the clamping device 140 can drive the aligning shaft 151 to extend or retract. Specifically, the rear end of the alignment shaft 151 may be inserted into a workpiece positioning hole of a protruding shaft that can be extended or retracted inside the clamping device 140 to be engaged with the clamping device 140, where the clamping device 140 is a device that is originally used on a machine tool to be engaged with the workpiece clamp 160 to clamp a workpiece to be machined from both ends of the workpiece to be machined, and the workpiece positioning hole is a hole on the protruding shaft that can be extended or retracted inside the clamping device 140 to be inserted into the workpiece to be machined, so as to fix the workpiece to be machined.
The front end of the aligning shaft 151 is movably matched with the pressing arm 155 in the axial direction, and the extending direction of the pressing arm 155 is perpendicular to the extending direction of the aligning shaft 151 so as to press a workpiece to be machined clamped on the workpiece fixture 160, and it is ensured that each position of the positioning end of the workpiece to be machined is in contact alignment with the workpiece fixture 160, so that the workpiece to be machined is accurately positioned, and further, the fine machining of the workpiece to be machined is realized.
Specifically, as shown in fig. 4, the pressing arm 155 has a fitting hole penetrating through the front and rear sides, and the front end of the aligning shaft 151 passes through the fitting hole of the pressing arm 155 to be movably fitted to the pressing arm 155 in the axial direction. Further, in order to prevent the pressing arm 155 from falling off the aligning shaft 151, as shown in fig. 2, the front end of the aligning shaft 151 is provided with a screw, and the positioning nut 156 is screw-engaged with the aligning shaft 151 at the front end of the pressing arm 155. In order to avoid the pressing arm 155 from moving in the circumferential direction, the sectional shape of the front section of the aligning shaft 151 is non-circular in the present application, and the shape of the fitting hole of the pressing arm 155 corresponds to the sectional shape of the front section of the aligning shaft 151, for example: rectangular, square, oval, irregular, etc.
As for the shape of the pressing arm 155, a rectangular parallelepiped rod shape of the pressing arm 155 is preferable in the present application, but other shapes are also possible as long as the workpiece to be machined can be pressed so that each position of the positioning end of the workpiece to be machined is in contact alignment with the workpiece holder 160.
In order to avoid the pressing arm 155 from rigidly pressing the workpiece to be machined, the elastic sleeve 154 is sleeved on the aligning shaft 151, and the elastic sleeve 154 is located at the rear end of the pressing arm 155, so that the pressing arm 155 located in front has a certain amount of buffer moving backwards when the pressing arm 155 presses the workpiece to be machined.
Specifically, in order to restrict the position of the elastic bush 154, as shown in fig. 3, the diameter of the front section of the aligning shaft 151 is set to be smaller than the diameter of the middle section of the aligning shaft 151, and the front end of the elastic bush 154 is in contact with the rear end of the pressing arm 155 and the rear end of the elastic bush 154 is in contact with the front end of the middle section of the aligning shaft 151. When the pressing arm 155 is not pressed, the pressing arm 155 is limited between the elastic sleeve 154 and the positioning nut 156 by the elastic sleeve 154, and during the pressing of the pressing arm 155, the elastic sleeve 154 is gradually compressed and deformed, and the pressing arm 155 is gradually moved backward, thereby avoiding the rigid pressing of the pressing arm 155 on the workpiece to be processed.
On the above basis, as shown in fig. 5 and 6, the front end of the elastic sleeve 154 has a smaller diameter than the rear end of the elastic sleeve 154 so that the elastic sleeve 154 is compressed and deformed to provide a certain amount of movement for the pressing arm 155 to move backward.
In addition, in order to limit the length of the aligning shaft 151 extending into the workpiece positioning hole of the lift shaft inside the clamping device 140, the diameter of the connecting portion between the rear section of the aligning shaft 151 and the middle section of the aligning shaft 151 is greater than the diameter of the other portion of the rear section of the aligning shaft 151, so that a limit step is formed at the connecting portion between the rear section of the aligning shaft 151 and the middle section of the aligning shaft 151, and when the rear section of the aligning shaft 151 is inserted into the workpiece positioning hole of the lift shaft inside the clamping device 140, the workpiece is limited by the limit step.
On the basis, in order to more conveniently and easily pull the alignment shaft 151 out of the workpiece positioning hole of the ejector shaft inside the clamping device 140, an ejector thread is provided at the rear section of the alignment shaft 151, the front end of the ejector thread contacts with the rear end of the limit step, and the ejector thread is also engaged with the ejector sleeve 152. When the aligning shaft 151 is pulled out from the workpiece positioning hole of the push-out shaft inside the clamping device 140, the push-out sleeve 152 engaged with the push-out screw is screwed, so that the aligning shaft 151 is pulled out from the workpiece positioning hole of the push-out shaft inside the clamping device 140 by pushing the push-out sleeve 152 to the clamping device 140.
One end of the safety switch opening rod 153 is connected to the aligning shaft 151, the other end extends to the safety switch 157 on the clamping device 140, and after the aligning shaft 151 retracts, the other end of the safety switch opening rod 153 can contact the safety switch 157 to trigger the safety switch 157 to close. Specifically, the safety switch opening lever 153 includes: a vertical opening rod and a horizontal opening rod, the lower end of the vertical opening rod is connected to the middle section of the aligning shaft 151, the upper section of the vertical opening rod is connected with the front end of the horizontal opening rod, and the rear end of the horizontal opening rod extends to the safety switch 157 to close the safety switch 157.
The safety switch 157 is used for connecting with a tool driving circuit of the machine tool, and the tool driving circuit is communicated by closing the safety switch 157, so that the tool driving device can move towards the position of the workpiece to be processed, namely move forwards, and further the workpiece to be processed can be processed. That is, if the safety switch 157 is closed, the tool driving circuit is connected, and at this time, the switch for controlling the tool driving device can be turned on according to the requirement, so that the tool driving device moves towards the position of the workpiece to be processed to process the workpiece to be processed; if the safety switch 157 is not closed, the tool driving circuit is not connected, and at this time, the tool driving device does not move even if the switch for controlling the tool driving device is turned on. Due to the safety switch 157 arranged in the application, the workpiece to be machined can be machined only after the machine tool aligning device 150 retracts and resets, and therefore the safety of the machining of the workpiece to be machined is guaranteed.
As shown in fig. 1, the present application also provides a machine tool comprising: a headstock 110, a machine tool body 120, a clamping device 140, a workpiece holder 160, and the machine tool alignment device 150; the rear end of the headstock 110 is connected to the front end of the machine tool body 120, the workpiece holder 160 is located at a portion of the rear end of the headstock 110 higher than the machine tool body 120, and the workpiece holder 160 extends rearward for holding a workpiece to be machined; the clamping device 140 is located at the upper end of the machine tool body 120, and the front end thereof is inserted into the machine tool aligning device 150, and the clamping device 140 may drive the machine tool aligning device 150 to extend forward or retract backward to press the workpiece to be machined, which is clamped on the workpiece holder 160. Specifically, the machine tool alignment device 150 is inserted into a workpiece positioning hole of a top extension shaft that can extend or retract inside the clamping device 140.
Preferably, the rear end of the clamping device 140 is connected to a pneumatic driving device 130, and the machine tool alignment device 150 inserted into the clamping device 140 is driven by the pneumatic driving device 130 to extend forward or retract backward, or the machine tool alignment device 150 may be driven by other driving methods as long as the technical effects to be achieved by the present application are met.
On the basis of the above, as shown in fig. 7, the workpiece holder 160 is a multi-segment arc-shaped holder, and the multi-segment arc-shaped holder can move along the radial direction, so that the diameter of the circumference surrounded by the multi-segment arc-shaped holder can be enlarged or reduced, and further the workpiece to be processed mounted on the arc-shaped holder can be clamped by moving the multi-segment arc-shaped holder along the radial direction, for example: the sealing cover enables the processing of the workpiece to be processed to be more accurate.
When the machine tool aligning device and the machine tool are used, a workpiece to be machined is installed on a workpiece clamp, then the machine tool aligning device is started, the aligning shaft of the machine tool aligning device extends forwards, the pressing arm at the front end of the aligning shaft presses the workpiece to be machined on the workpiece clamp, after the pressing is finished, the aligning shaft of the machine tool aligning device retracts, and after the safety switch is closed, the cutter driving device can be started to machine the workpiece to be machined.
In the application, the machine tool alignment device and the machine tool can ensure that each position of the positioning end of the workpiece to be machined is in contact alignment with the workpiece clamp, so that the workpiece to be machined is accurately positioned, the workpiece to be machined is finely machined, and for machining the sealing cover, the height and the parallelism of the sealing cover can be ensured; in addition, because the machine tool alignment device and the machine tool in the application are both provided with the safety switch, the tool driving device can be prevented from being started when the machine tool alignment device is ejected out, so that equipment damage or personnel injury is avoided.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (10)
1. A machine tool aligning apparatus, comprising: the alignment shaft, the safety switch opening rod, the elastic sleeve, the pressing arm and the safety switch are arranged on the positioning shaft;
the rear end of the aligning shaft is used for being matched with one end, facing the workpiece clamp, of a clamping device of the machine tool, and the clamping device can drive the aligning shaft to extend out or retract;
the front end of the aligning shaft is movably matched with the pressing arm in the axial direction, and the extending direction of the pressing arm is vertical to the extending direction of the aligning shaft so as to press a workpiece to be machined, which is clamped on the workpiece clamp;
the elastic sleeve is sleeved on the aligning shaft and is positioned at the rear end of the pressing arm to provide a certain amount of buffer for backward movement of the pressing arm;
one end of the safety switch opening rod is connected to the aligning shaft, the other end of the safety switch opening rod extends to a safety switch on the clamping device, and after the aligning shaft retracts, the other end of the safety switch opening rod can be in contact with the safety switch to trigger the safety switch to be closed;
the safety switch is used for being connected with a cutter driving circuit of the machine tool, and the cutter driving circuit is communicated through the closing of the safety switch, so that the cutter driving device can move towards a workpiece to be machined.
2. The machine tool aligning apparatus of claim 1, wherein the rear end of the aligning shaft is inserted into a workpiece positioning hole of a projecting shaft which can be extended or retracted inside the clamping apparatus to be engaged with the clamping apparatus.
3. The machine tool aligning apparatus of claim 1, wherein the pressing arm has a fitting hole penetrating forward and backward, and a front end of the aligning shaft passes through the fitting hole of the pressing arm to movably fit the pressing arm in the axial direction.
4. The machine tool aligning apparatus according to claim 3, wherein the front end of the aligning shaft is provided with a thread, and the positioning nut is threadedly engaged with the aligning shaft at the front end of the pressing arm.
5. The machine tool aligning device according to any one of claims 1 to 4, wherein the diameter of the front section of the aligning shaft is smaller than the diameter of the middle section of the aligning shaft, and the front end of the elastic sleeve is in contact with the rear end of the pressing arm and the rear end of the elastic sleeve is in contact with the front end of the middle section of the aligning shaft.
6. The machine tool aligning apparatus of claim 5, wherein the front end of the elastic sleeve has a diameter smaller than that of the rear end of the elastic sleeve.
7. The machine tool aligning device of claim 5, wherein a diameter of a connecting portion of the rear section of the aligning shaft and the middle section of the aligning shaft is larger than other portions of the rear section of the aligning shaft to form a limit step at the connecting portion of the rear section of the aligning shaft and the middle section of the aligning shaft.
8. The machine tool aligning device of claim 7, wherein the rear section of the aligning shaft is provided with an ejecting thread, a front end of the ejecting thread is in contact with a rear end of the limit step, and the ejecting thread is also engaged with the ejecting sleeve.
9. A machine tool, comprising: the machine tool comprises a main spindle box, a machine tool body, a clamping device and a workpiece clamp; the rear end of the spindle box is connected to the front end of the machine tool body, the workpiece clamp is positioned at the part, higher than the machine tool body, of the rear end of the spindle box, extends backwards and is used for fixing a workpiece to be machined, and the clamping device is positioned at the upper end of the machine tool body; it is characterized by also comprising: the machine tool aligning device according to any one of claims 1 to 8, which is inserted into a front end of the clamping device, and the clamping device is driven to extend forward or retract backward to press the workpiece to be machined, which is clamped on the workpiece holder.
10. The machine tool of claim 9 wherein a pneumatic drive is connected to the rear end of the clamping device and the alignment device inserted into the clamping device is driven by the pneumatic drive to extend forward or retract backward.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122428525.3U CN215700211U (en) | 2021-10-09 | 2021-10-09 | Machine tool and aligning device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122428525.3U CN215700211U (en) | 2021-10-09 | 2021-10-09 | Machine tool and aligning device thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215700211U true CN215700211U (en) | 2022-02-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122428525.3U Active CN215700211U (en) | 2021-10-09 | 2021-10-09 | Machine tool and aligning device thereof |
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| Country | Link |
|---|---|
| CN (1) | CN215700211U (en) |
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2021
- 2021-10-09 CN CN202122428525.3U patent/CN215700211U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A machine tool and its alignment device Effective date of registration: 20230814 Granted publication date: 20220201 Pledgee: Agricultural Bank of China Limited Zhangjiakou Qiaodong Branch Pledgor: ZHANGJIAKOU TIMES RUBBER PRODUCTS Corp.,Ltd. Registration number: Y2023980052081 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |