CN214350933U - Processing device for processing inner plane of ultralong square hole in two directions - Google Patents
Processing device for processing inner plane of ultralong square hole in two directions Download PDFInfo
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- CN214350933U CN214350933U CN202120506003.8U CN202120506003U CN214350933U CN 214350933 U CN214350933 U CN 214350933U CN 202120506003 U CN202120506003 U CN 202120506003U CN 214350933 U CN214350933 U CN 214350933U
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Abstract
The utility model discloses a processing device for processing a plane in a super-long square hole in two directions, which relates to the technical field of lathe machining, and comprises a workbench, wherein a support arm supporting seat is fixed on the workbench in a sliding manner, a short support arm used for extending into a workpiece square hole to perform plane processing is fixedly arranged on the support arm supporting seat, a milling cutter component used for processing the plane of the square hole is arranged at the end part of the short support arm, and the length of the short support arm is 1/2-2/3 of the length of the workpiece; metal gaskets are uniformly distributed on the side walls of the short support arms and are used for filling gaps between the side walls of the end parts of the short support arms and the wall surfaces of the square holes of the workpieces; the utility model discloses a trade the tradition for short support arm than the long tool arm of work piece, make the rigidity of short support arm obviously improve, can enough guarantee the straightness accuracy of short support arm, can also reduce the vibration range of short support arm in the course of the work, avoided because tool arm overlength, crooked, the technical problem that the machining precision that the vibration range leads to greatly is low to can further reduce the vibration range of short support arm through metal gasket.
Description
Technical Field
The utility model relates to a lathe machine tooling technical field especially relates to a processingequipment of plane in two-way processing overlength square hole.
Background
At present, the processing difficulty of the inner surface of a long shell material is larger. For example, a square shell with the length of more than 1000mm requires that the precision of the front end and the rear end of the surface of an inner cavity is controlled within a tolerance range of 0.1mm, and because the inner cavity is small, the existing milling cutter cannot mill a groove in the machined shell in the narrow inner cavity. Even if the milling cutter can extend into the inner cavity of the shell, the milling cutter tool which is longer than the length of the shell is needed, the end part is easy to droop due to the low rigidity of the milling cutter tool with the longer length, the amplitude is larger during vibration, and the machining precision is difficult to guarantee.
The utility model discloses a utility model patent of application number "201920516572.3", the name "be used for PF15 guided missile launcher lathe milling flutes cutter arm" discloses a milling cutter instrument for cutter arm and the work piece of work end remain on the same axis all the time through cutter arbor uide bushing and guide bar cooperation, with the precision that improves the milling flutes. But the top of the shell of the PF15 missile launcher is provided with an opening, so that the inner positioning sleeve is allowed to extend into the cavity of the shell from the top of the shell to be matched with the guide rod, and the cutter arm and the workpiece are ensured to be always kept on the same axis. However, the prior art implementation requires the workpiece housing to have an opening at the top, with certain requirements on the material structure. But not for workpieces that do not have an opening at the top.
Therefore, how to rapidly and accurately mill the groove in the narrow cavity is an urgent problem to be solved in long shell workpiece machining.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a processingequipment of plane in two-way processing overlength square hole to solve the problem that prior art exists, carry out milling of interior plane through using short support arm, can guarantee that short support arm has stronger rigidity, cooperate the metal gasket that its tip set up, can obviously reduce the vibration of short support arm at the milling process, guarantee the machining precision.
In order to achieve the above object, the utility model provides a following scheme: the utility model provides a processing device for processing planes in a super-long square hole in two directions, which comprises a workbench, wherein a support arm support seat is fixed on the workbench in a sliding manner, a short support arm for extending into a workpiece square hole to perform plane processing is fixedly arranged on the support arm support seat, a milling cutter assembly for processing the square hole plane is arranged at the end part of the short support arm, and the length of the short support arm is 1/2-2/3 of the length of the workpiece; still the equipartition has the metal gasket on the lateral wall of short support arm, the metal gasket is used for filling the clearance between short support arm tip lateral wall and the work piece square hole wall, and in the direction of feed of short support arm, the metal gasket is located the front end of milling cutter subassembly.
Preferably, the section of the short support arm is square, the milling cutter assembly is fixed on one side wall of the short support arm, and the metal gaskets are arranged on the other three side walls.
Preferably, the metal gasket is fixed on the side wall of the short support arm through a countersunk bolt.
Preferably, a rotating shaft is arranged in the short supporting arm, one end of the rotating shaft is in transmission connection with the transmission shaft, and the other end of the rotating shaft is in transmission connection with the milling cutter assembly.
Preferably, the processing device further comprises a rotary power mechanism, the output end of the rotary power mechanism is provided with a chuck sleeve, and the chuck sleeve is in transmission connection with the transmission shaft through a connecting key; the connecting key is fixed on the chuck sleeve, the length of the transmission shaft is larger than the key groove of the feeding length of the short support arm, and the connecting key and the key groove can slide relatively.
Preferably, the support arm support seat is fixed on a support arm feeding device, and the support arm feeding device drives the support arm support seat to perform linear feeding motion.
Preferably, the milling cutter assembly comprises a milling cutter, a first bevel gear and a second bevel gear, the milling cutter is fixed at the end of the short support arm, the first bevel gear is fixed at the end of the rotating shaft, the second bevel gear is fixed on a milling cutter shaft of the milling cutter, and the first bevel gear and the second bevel gear are vertically arranged and are meshed with each other.
Preferably, the workbench is further provided with two clamping parts for clamping the workpiece.
Preferably, the clearance between the metal gasket and the inner wall of the square hole of the workpiece is less than 0.1mm, and the thickness of the metal gasket is 0.05 mm-0.3 mm.
Preferably, the metal gasket is a copper sheet.
The utility model discloses for prior art gain following technological effect:
1. the utility model changes the traditional knife arm longer than the workpiece into the short support arm, so that the rigidity of the short support arm is obviously improved, the straightness of the short support arm can be ensured, the vibration amplitude of the short support arm in the working process can be reduced, and the technical problem of low processing precision caused by overlong knife arm, bending and large vibration amplitude is avoided, thereby ensuring the processing precision of the workpiece;
2. in the utility model, the metal gasket is evenly distributed on the side wall of the end part of the short support arm, the gap between the side wall of the short support arm and the wall surface of the square hole of the workpiece is filled through the metal gasket, and the size of the gap between the end part of the short support arm and the wall surface of the square hole is reduced, so that the vibration amplitude of the short support arm can be further reduced, and the processing precision is improved;
3. the utility model discloses carry out the transmission through the connection key between well chuck cover and the transmission shaft and be connected, and the connection key is fixed on the chuck cover, epaxial keyway length of transmission is greater than the feed length of short support arm, make rotary power mechanism rotate through driving the chuck cover and can drive the transmission shaft and rotate, and the support arm supporting seat is when making rectilinear feed motion, can also make the transmission shaft carry out rectilinear feed motion in the chuck cover, thereby realize that the transmission shaft can enough rotate, provide rotary power for the rotation axis, can also remove along with the rotation axis, thereby establish the basis for the processing of work piece.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.
Fig. 1 is a schematic perspective view of the present invention;
FIG. 2 is a front view of FIG. 1;
FIG. 3 is an enlarged partial cross-sectional view of A in FIG. 2;
FIG. 4 is an enlarged partial cross-sectional view of B in FIG. 2;
FIG. 5 is a front view of the chuck cover;
FIG. 6 is a cross-sectional view of the chuck sleeve;
FIG. 7 is a front view of the connecting key;
FIG. 8 is a side cross-sectional view of the connecting key;
wherein, 1, a support arm support seat; 2. a workpiece; 3. a short support arm; 4. a metal gasket; 5. a precision vice; 6. milling cutters; 7. a first bevel gear; 8. a second bevel gear; 9. milling a cutter shaft; 10. a coupling; 11. a bearing; 12. a rotating shaft; 13. a drive shaft; 14. a chuck sleeve; 15. a connecting bond; 16. a through hole; 17. an internally threaded bore; 18. a keyway.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The utility model aims at providing a processingequipment of plane in two-way processing overlength square hole to solve the problem that prior art exists, carry out milling of interior plane through using short support arm, can guarantee that short support arm has stronger rigidity, cooperate the metal gasket that its tip set up, can obviously reduce the vibration of short support arm at the milling process, guarantee the machining precision.
In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.
As shown in fig. 1 to 2, the present embodiment discloses a processing apparatus for processing a plane in a super-long square hole in two directions, which includes a workbench, a support arm support seat 1 is fixed on the workbench in a sliding manner, a short support arm 3 for extending into a square hole of a workpiece 2 to perform plane processing is fixed on the support arm support seat 1, a milling cutter assembly for processing the plane of the square hole is arranged at an end of the short support arm 3, and the length of the short support arm 3 is 1/2 to 2/3 of the length of the workpiece 2; metal gaskets 4 are uniformly distributed on the side wall of the short support arm 3, the metal gaskets 4 are used for filling a gap between the side wall of the end part of the short support arm 3 and the wall surface of the square hole of the workpiece 2, and in the feeding direction of the short support arm 3, the metal gaskets 4 are positioned at the front end of the milling cutter assembly.
When a workpiece 2 is machined, firstly, the workpiece 2 is horizontally fixed on two precision vices 5, the workpiece 2 is clamped by the two precision vices 5, the horizontal placement of the workpiece is ensured, a square hole of the workpiece 2 is aligned with a short supporting arm 3, then, a gap between the side wall of the short supporting arm 3 and the wall surface of the square hole of the workpiece 2 is measured, then, a metal gasket 4 with a certain thickness is fixed at the end part of the short supporting arm 3 according to the size of the gap to fill the gap, then, a supporting arm supporting seat 1 performs linear feeding motion, and meanwhile, a milling cutter assembly acts to mill the surface of the square hole of the workpiece 2; when the processing length of the inner surface of the square hole of the short support arm 3 exceeds half of the total length of the workpiece 2 or reaches the limit processing position of the short support arm 3, stopping feeding and withdrawing the square hole of the workpiece 2; and after the workpiece 2 is withdrawn, overturning the workpiece 2, enabling the short supporting arm 3 to extend into the workpiece 2 from the other end of the workpiece, machining the workpiece 2 again, and finally finishing the milling process of the square hole of the workpiece 2. When a plurality of inner surfaces of the square hole of the workpiece 2 need to be machined, the workpiece 2 is clamped again, and the process is repeated.
Therefore, according to the embodiment, the traditional tool arm longer than the workpiece 2 is replaced by the short support arm 3, and the length of the short support arm 3 is 1/2-2/3 of the length of the workpiece 2, so that the length of the short support arm 3 is reduced, the rigidity is obviously improved, the straightness of the short support arm 3 can be ensured, the vibration amplitude of the short support arm 3 in the working process can be reduced, and the technical problem of low machining precision caused by bending of the tool arm due to overlong length and large vibration amplitude is solved; in addition, in this embodiment, the metal gaskets 4 are uniformly distributed on the side wall of the end portion of the short support arm 3, and the metal gaskets 4 fill up the gap between the side wall of the short support arm 3 and the wall surface of the square hole of the workpiece 2, so that the size of the gap between the end portion of the short support arm 3 and the wall surface of the square hole is reduced, thereby further reducing the vibration amplitude of the short support arm 3 and ensuring the machining precision.
In the prior art, the length of the shell is usually 1350mm, that is, the length of the workpiece 2 is 1350mm, in this embodiment, one end of the short support arm 3 is fixed on the support arm support frame, and the length of the support arm support frame exposed out is 750mm to 850mm, so that the length of the support arm is obviously shortened, and the overall size of the workbench can be reduced.
In this embodiment, the support arm support base 1 is composed of an upper positioning sleeve and a lower positioning sleeve, a cavity matched with the shape of the short support arm 3 is formed between the upper positioning sleeve and the lower positioning sleeve, and the upper positioning sleeve is fixed on the lower positioning sleeve through a bolt to clamp and fix the short support arm 3. Utilize last position sleeve and position sleeve down to carry out the clamp fastening and fix, can guarantee short support arm 3 level through top surface, the bottom surface level of guaranteeing the cavity, for other modes such as bolt fastening or welding, the installation accuracy of short support arm 3 is higher, more is favorable to milling the assurance of precision.
Specifically, the clearance between the metal gasket 4 and the inner wall of the square hole of the workpiece 2 is less than 0.1mm, the smaller the clearance is, the better the clearance is theoretically, and the thickness of the metal gasket 4 is 0.05 mm-0.3 mm; although the thickness of the metal gasket 4 should be determined by the clearance between the short arm 3 and the inner wall of the square hole, in general, in order to make the short arm 3 have a certain rigidity to ensure the machining accuracy, the outer dimension of the short arm 3 approaches the dimension of the square hole as much as possible, so that the thickness of the metal sheet is limited to 0.05mm to 0.3mm, which is generally satisfactory in practical use.
In this embodiment, the cross section of the short arm 3 is square, a milling cutter assembly is fixed on one side wall of the short arm 3, metal gaskets 4 are arranged on the other three side walls, and the metal gaskets 4 are close to the end surface of the short arm 3 as much as possible, preferably, one side of each metal gasket 4 can coincide with the edge of the short arm 3. The shape of the metal gasket 4 can be selected by those skilled in the art according to actual situations, and the embodiment is not limited.
Further, in the present embodiment, the metal gasket 4 is fixed on the side wall of the short arm 3 by a countersunk head bolt, and the metal gasket 4 is preferably a copper alloy sheet with a smooth and wear-resistant surface.
As shown in fig. 3, in order to implement the planar processing of the milling cutter 6 in the square hole, in the embodiment, a rotating shaft 12 is arranged in the short arm 3, one end of the rotating shaft 12 is in transmission connection with a transmission shaft 13, and the other end is in transmission connection with a milling cutter assembly; the milling cutter assembly comprises a milling cutter 6, a first bevel gear 7 and a second bevel gear 8, wherein the milling cutter 6 is fixed at the end part of the short support arm 3, the first bevel gear 7 is fixed at the end part of the rotating shaft 12, the second bevel gear 8 is fixed on a milling cutter shaft 9 of the milling cutter 6, and the first bevel gear 7 and the second bevel gear 8 are vertically arranged and are meshed with each other, so that the rotating direction of the milling cutter 6 is changed.
In addition, the rotating shaft 12 is connected with the transmission shaft 13 through the coupler 10 in the embodiment; the rotating shaft 12 and its milling cutter shaft 9 are fixed in the short arm 3 by means of a bearing 11.
As shown in fig. 4 to 8, in order to realize the rotation of the transmission shaft 13, the processing apparatus in this embodiment further includes a rotation power mechanism, an output end of the rotation power mechanism is provided with a chuck sleeve 14, and the chuck sleeve 14 is in transmission connection with the transmission shaft 13 through a connection key 15; different from the traditional method for fixing the key in the key groove 18 on the shaft, the connecting key 15 in the embodiment is L-shaped, one side of the L-shaped is provided with a through hole 16, the position of the chuck sleeve 14 close to the central hole is provided with an internal thread hole 17, a bolt can pass through the through hole 16 to fix the connecting key 15 on the chuck sleeve 14, the through hole 16 of the chuck sleeve 14 is provided with a groove for accommodating the connecting key 15 in the circumferential direction, the height of the connecting key 15 is higher than the depth of the groove, the transmission shaft 13 is provided with a key groove 18 for matching with the connecting key 15, and the connecting key 15 and the key groove 18 can generate relative sliding along the linear feeding direction of the short supporting arm 3; the rotary power mechanism can drive the transmission shaft 13 to rotate by driving the chuck sleeve 14 to rotate, the support arm supporting seat 1 can also enable the transmission shaft 13 to perform linear feeding motion in the chuck sleeve 14 while performing linear feeding motion, so that the transmission shaft 13 can rotate, rotary power is provided for the rotary shaft 12, the rotary power can also move along with the rotary shaft 12, and a foundation is laid for processing the workpiece 2.
In order to ensure that the transmission shaft 13 can perform long linear feeding, the length of the key groove 18 on the transmission shaft 13 is not less than the feeding length of the short support arm 3 for one-time milling in the embodiment; and the rotary drive mechanism also needs to have a space for accommodating the longer transmission shaft 13.
In order to realize the linear feeding motion of the support arm support seat 1, in this embodiment, the support arm support seat 1 is fixed on a support arm feeding device, the support arm feeding device drives the support arm support seat 1 to perform the linear motion, and the support arm feeding device may be any device capable of driving the support arm support seat 1 to perform the linear motion.
The adaptability that carries out according to actual demand all is in the protection scope of the utility model.
It should be noted that, as is obvious to a person skilled in the art, the invention is not limited to details of the above-described exemplary embodiments, but can be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention 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.
Claims (10)
1. The machining device for machining the plane in the overlong square hole in the two directions is characterized by comprising a workbench, wherein a support arm support seat is fixed on the workbench in a sliding mode, a short support arm used for extending into a workpiece square hole to perform plane machining is fixedly arranged on the support arm support seat, a milling cutter assembly used for machining the plane of the square hole is arranged at the end of the short support arm, and the length of the short support arm is 1/2-2/3 of the length of the workpiece; still the equipartition has the metal gasket on the lateral wall of short support arm, the metal gasket is used for filling the clearance between short support arm tip lateral wall and the work piece square hole wall, and in the direction of feed of short support arm, the metal gasket is located the front end of milling cutter subassembly.
2. The apparatus of claim 1, wherein the short arm has a square cross-section, and the milling cutter assembly is fixed to one side wall of the short arm, and the metal gasket is disposed on the other three side walls.
3. The apparatus for machining the plane inside a super-long square hole in two directions according to claim 2, wherein the metal gasket is fixed on the side wall of the short arm by a countersunk head bolt.
4. The device for machining the plane inside the ultra-long square hole in the two directions as claimed in any one of claims 1 to 3, wherein a rotating shaft is arranged in the short arm, one end of the rotating shaft is in transmission connection with a transmission shaft, and the other end of the rotating shaft is in transmission connection with the milling cutter assembly.
5. The machining device for machining the plane in the ultralong square hole in the two directions is characterized by further comprising a rotary power mechanism, wherein a chuck sleeve is arranged at the output end of the rotary power mechanism, and the chuck sleeve is in transmission connection with the transmission shaft through a connecting key; the connecting key is fixed on the chuck sleeve, the length of the transmission shaft is larger than the key groove of the feeding length of the short support arm, and the connecting key and the key groove can slide relatively.
6. The apparatus of claim 5, wherein the arm support base is fixed to an arm feeding device, and the arm feeding device drives the arm support base to perform a linear feeding motion.
7. The device for machining the inner plane of the ultra-long square hole in the two directions as claimed in claim 6, wherein the milling cutter assembly comprises a milling cutter, a first bevel gear and a second bevel gear, the milling cutter is fixed at the end of the short arm, the first bevel gear is fixed at the end of the rotating shaft, the second bevel gear is fixed on a milling cutter shaft of the milling cutter, and the first bevel gear and the second bevel gear are vertically arranged and meshed with each other.
8. The machining device for machining the plane inside the ultralong square hole in the two directions according to claim 1, wherein the workbench is further provided with two clamping portions for clamping a workpiece.
9. The apparatus of claim 1, wherein the clearance between the metal gasket and the inner wall of the square hole of the workpiece is less than 0.1mm, and the thickness of the metal gasket is 0.05mm to 0.3 mm.
10. The device for machining the plane inside the ultralong square hole in the two directions as claimed in claim 1 or 9, wherein the metal gasket is a copper sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120506003.8U CN214350933U (en) | 2021-03-10 | 2021-03-10 | Processing device for processing inner plane of ultralong square hole in two directions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120506003.8U CN214350933U (en) | 2021-03-10 | 2021-03-10 | Processing device for processing inner plane of ultralong square hole in two directions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214350933U true CN214350933U (en) | 2021-10-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120506003.8U Active CN214350933U (en) | 2021-03-10 | 2021-03-10 | Processing device for processing inner plane of ultralong square hole in two directions |
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| CN (1) | CN214350933U (en) |
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2021
- 2021-03-10 CN CN202120506003.8U patent/CN214350933U/en active Active
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Effective date of registration: 20230807 Address after: 448000 Group 13, Ziling Village, Zilingpu Town, Dongbao District, Jingmen City, Hubei Province Patentee after: JINGMEN NUOHENG SCIENCE & TECHNOLOGY Co.,Ltd. Address before: 448001 33 Xiangshan Avenue, Jingmen City, Hubei Province Patentee before: JINGCHU University OF TECHNOLOGY |