CN215746658U - Ultrashort oil cylinder tensioning device for mounting milling head of machine tool - Google Patents
Ultrashort oil cylinder tensioning device for mounting milling head of machine tool Download PDFInfo
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- CN215746658U CN215746658U CN202122101178.3U CN202122101178U CN215746658U CN 215746658 U CN215746658 U CN 215746658U CN 202122101178 U CN202122101178 U CN 202122101178U CN 215746658 U CN215746658 U CN 215746658U
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Abstract
The utility model discloses an ultrashort oil cylinder tensioning device for mounting a machine tool milling head, which comprises a milling head connecting seat cushion, wherein oil cylinder cavities are formed in the periphery of the milling head connecting seat cushion, oil cylinder pull claw assemblies are mounted in the oil cylinder cavities, each oil cylinder pull claw assembly comprises a piston and a pull nail which are arranged in the oil cylinder cavity in an up-and-down sliding mode, a gland fixedly mounted on the lower end face of the milling head connecting seat cushion and a group of pull claws; an upper oil cavity is defined between the piston and the inner wall of the oil cylinder cavity, a lower oil cavity is defined between the piston, the gland and the inner wall of the oil cylinder cavity, and a loosening channel cavity and a tightening channel cavity are formed on the outer side wall of the milling head connecting seat cushion and are communicated with the upper oil cavity and the lower oil cavity respectively; and a pull claw is arranged in the central hole of the gland. The oil cylinder cavity, the piston and the blind rivet are reasonable in structural design, the blind rivet is arranged in the piston, longitudinal space is not occupied, the overall assembly structure is compact in design, and the blind rivet can be used in a milling machine with a short main shaft.
Description
Technical Field
The utility model relates to the technical field of machine tool equipment, in particular to an ultra-short oil cylinder tensioning device for mounting a milling head of a machine tool.
Background
The milling machine is a machine tool with wide application, and can process planes (horizontal planes and vertical planes), grooves (key grooves, T-shaped grooves, dovetail grooves and the like), tooth dividing parts (gears, spline shafts and chain wheels), spiral surfaces (threads and spiral grooves) and various curved surfaces on the milling machine. In addition, the method can be used for machining the surface and inner hole of the revolving body, cutting off the revolving body, and the like.
The existing assembling structure of the milling machine and the milling head usually adopts a puller cylinder mechanism arranged in a connecting seat cushion to tighten a milling head rivet on the upper end surface of the milling head, thereby realizing the assembling and fixing of the milling head. However, the slider oil cylinder mechanism in the prior art adopts a series structure, such as: the pull rod is connected to the rear of the pull claw, the oil cylinder piston is connected to the rear of the pull rod, and all parts of the pull head oil cylinder mechanism are connected in series one by one, so that the connecting seat cushion is large in longitudinal size, large in occupied space and difficult to adapt to a milling machine with a short spindle.
How to design a vertical size less, overall structure is compact, can become the technical problem that this application needs to solve with the ultrashort hydro-cylinder straining device is used in the installation of the lathe cutter head that is applicable to the shorter milling machine of main shaft to use.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an ultra-short oil cylinder tensioning device for mounting a milling head of a machine tool, which aims to solve the problems in the background technology.
In order to achieve the purpose, the utility model provides the following technical scheme:
an ultrashort oil cylinder tensioning device for mounting a machine tool milling head comprises a milling head connecting seat cushion, wherein oil cylinder cavities are formed in the periphery of the milling head connecting seat cushion, an oil cylinder pull claw assembly is mounted in each oil cylinder cavity, and each oil cylinder pull claw assembly comprises a piston, a pull nail, a gland and a group of pull claws, wherein the piston, the pull nail, the gland and the group of pull claws are arranged in each oil cylinder cavity in a vertically sliding mode, and the gland is fixedly mounted on the lower end face of the milling head connecting seat cushion;
an upper oil cavity is defined between the piston and the inner wall of the oil cylinder cavity, a lower oil cavity is defined between the piston, the gland and the inner wall of the oil cylinder cavity, and a loosening channel cavity and a tightening channel cavity are formed on the outer side wall of the milling head connecting seat cushion and are communicated with the upper oil cavity and the lower oil cavity respectively;
the piston is characterized in that a pull claw is arranged in a center hole of the gland, a tapered groove used for being matched with the lower end of the pull claw is formed in the lower end of the center hole, a pull nail is fixedly arranged in the piston, and the lower end of the pull nail is in driving connection with the pull claw.
Preferably, a pull claw convex part extends from the lower side end of the pull claw, and a pull claw embedding part extends from the upper side end of the pull claw;
the lower end face of the piston is provided with a piston end face groove, and the upper end face of the gland extends to form a gland sleeve which is matched and inserted with the circumferential inner wall of the piston end face groove;
the middle part of the blind rivet is provided with a middle convex ring, the center of the upper end face of the middle convex ring extends to form a blind rivet thread section, the blind rivet thread section is screwed in the piston through threads, the lower end of the blind rivet extends to form a blind rivet end cap, and the blind rivet embedding part is embedded between the middle convex ring and the blind rivet end cap.
Preferably, the cylinder cavity comprises an upper matching groove and a lower cavity groove, the upper part of the piston is in sliding fit in the matching groove, a piston annular convex part extends on the side wall of the lower part of the piston, and the piston annular convex part is in sliding fit in the cavity groove.
Preferably, a main shaft through hole is formed in the middle of the milling head connecting seat cushion, a centering stepped groove corresponding to the main shaft through hole is formed in the lower end face of the milling head connecting seat cushion, and a centering ring is fixed in the centering stepped groove in a matched mode.
Preferably, the upper end of the peripheral side wall of the milling head connecting seat cushion is provided with an upper embedded groove, and a T-shaped key block is fixedly installed in the upper embedded groove.
Preferably, the lower part of the lower end of the peripheral side wall of the milling head connecting seat cushion is provided with a lower part embedded groove, and a tooth block is fixedly arranged in the lower part embedded groove.
Preferably, the circumferential outer wall of the annular convex part of the piston, the circumferential inner wall of the end surface groove of the piston and the circumferential inner wall of the matching groove are all embedded with sealing rings, and the pressing cover is also embedded with sealing rings matched with the cavity groove.
Compared with the prior art, the utility model has the beneficial effects that: the oil cylinder cavity, the piston and the blind rivet are reasonable in structural design, the blind rivet is arranged in the piston, longitudinal space is not occupied, the overall assembly structure is compact in design, and the blind rivet can be used in a milling machine with a short main shaft. The core of the utility model is that the pulling claw for tensioning the milling head is arranged in the piston, thus greatly shortening the whole length of the oil cylinder assembly and meeting the application requirements in some special states.
Drawings
FIG. 1 is a schematic top view of an ultra-short cylinder tensioning device for mounting a milling head of a machine tool;
FIG. 2 is a schematic structural view of a section A-A of an ultra-short cylinder tensioning device for mounting a milling head of a machine tool;
FIG. 3 is an enlarged schematic structural view of a tensioning device K of an ultra-short oil cylinder for mounting a milling head of a machine tool;
FIG. 4 is a schematic structural view of a cylinder pull claw assembly in an ultra-short cylinder tensioning device for mounting a milling head of a machine tool;
fig. 5 is a schematic structural view of a side surface of an ultra-short oil cylinder tensioning device for mounting a milling head of a machine tool.
In the figure: 100-sealing ring, 1-milling head connecting seat cushion, 11-main shaft through hole, 12-centering stepped groove, 13-oil cylinder cavity, 14-loosening channel cavity, 15-tensioning channel cavity, 2-oil cylinder pulling claw component, 21-piston, 22-gland, 221-conical groove, 222-gland sleeve, 23-piston end surface groove, 24-piston annular convex part, 3-T type key block, 4-centering ring, 5-pulling nail, 51-pulling nail thread section, 52-middle convex ring, 53-pulling nail end cap, 6-pulling claw, 61-pulling claw convex part, 62-pulling claw embedded part, 7-upper oil cavity, 8-lower oil cavity and 9-tooth block.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1: please refer to fig. 1 to 5, an ultrashort oil cylinder tensioning device for installing a milling head of a machine tool comprises a milling head connecting seat cushion 1, an oil cylinder cavity 13 is arranged around the milling head connecting seat cushion 1, and an oil cylinder pull claw assembly 2 is installed in the oil cylinder cavity 13, and is characterized in that: the oil cylinder pull claw assembly 2 comprises a piston 21 arranged in an oil cylinder cavity 13 in a vertically sliding mode, a pull nail 5, a gland 22 fixedly installed on the lower end face of the milling head connecting seat cushion 1 and a group of pull claws 6;
an upper oil cavity 7 is defined between the piston 21 and the inner wall of the oil cylinder cavity 13, a lower oil cavity 8 is defined between the piston 21, the gland 22 and the inner wall of the oil cylinder cavity 13, and a loosening channel cavity 14 communicated with the upper oil cavity 7 and a tightening channel cavity 15 communicated with the lower oil cavity 8 are formed in the outer side wall of the milling head connecting seat cushion 1;
a pull claw 6 is arranged in a central hole of the gland 22, a tapered groove 221 used for being matched with the lower end of the pull claw 6 is arranged at the lower end of the central hole, a pull nail 5 is fixedly arranged in the piston 21, and the lower end of the pull nail 5 is in driving connection with the pull claw 6.
Wherein, a pulling claw convex part 61 extends from the lower side end of the pulling claw 6, and a pulling claw embedded part 62 extends from the upper side end of the pulling claw 6;
a piston end surface groove 23 is formed in the lower end surface of the piston 21, and a gland sleeve 222 which is matched and inserted with the circumferential inner wall of the piston end surface groove 23 extends from the upper end surface of the gland 22;
the middle part of the blind rivet 5 is provided with a middle convex ring 52, the center of the upper end surface of the middle convex ring 52 extends to form a blind rivet thread section 51, the blind rivet thread section 51 is screwed in the piston 21 through threads, the lower end of the blind rivet 5 extends to form a blind rivet end cap 53, and the blind rivet embedding part 62 is embedded between the middle convex ring 52 and the blind rivet end cap 53.
The working principle of the utility model is as follows: during installation, oil is supplied to the lower oil cavity 8 through the tensioning channel cavity 15, the piston 21 moves upwards due to oil pressure, the pull nail 5 is pulled by the piston 21 moving upwards, the pull nail 5 drives the pull claws 6 to move upwards, the lower ends of the pull claws 6 can be retracted into the central hole from the conical groove 221 while each pull claw 6 moves upwards, and then the lower ends of the pull claws 6 clamp the milling head pull nail package on the upper end surface of the milling head, so that the tensioning assembly of the milling head is realized;
during the dismantlement, through loosening the interior fuel feeding of passageway chamber 14 to oiling cavity 7, the oil pressure makes piston 21 remove downwards, and the piston 21 that moves down drives the blind rivet 5, and the blind rivet 5 is pushing away and is drawing claw 6 downstream, and each draws claw 6 when removing downwards can make and draw claw 6 lower extreme to get into the bell jar 221 of below from the central hole in, and then makes and draw claw 6 lower extreme and the milling head blind rivet of milling head up end to throw off to realize the dismantlement of milling head.
The oil cylinder cavity 13, the piston 21 and the blind rivet 5 are reasonable in structural design, and the blind rivet 5 is installed inside the piston 21 and does not occupy longitudinal space, so that the overall assembly structural design is compact, and the blind rivet can be used by a milling machine which is suitable for a short spindle.
The cylinder chamber 13 includes an upper fitting groove and a lower chamber groove, and it is apparent that the inner diameter of the chamber groove is larger than that of the fitting groove, the upper portion of the piston 21 is slidably fitted in the fitting groove, and a piston annular protrusion 24 is extended on the lower side wall of the piston 21, and the piston annular protrusion 24 is slidably fitted in the chamber groove. In this embodiment, the annular protrusion 24 of the piston divides the cavity into an upper wall and a lower wall, i.e. the upper oil cavity 7 and the lower oil cavity 8, and the overall structure is compact in design.
The middle of the milling head connecting seat cushion 1 is provided with a main shaft through hole 11, the lower end face of the milling head connecting seat cushion 1 is provided with a centering stepped groove 12 corresponding to the main shaft through hole 11, and a centering ring 4 is fixed in the centering stepped groove 12 in a matched mode. The centering ring 4 is used for centering the milling head, so that the mounting precision of the milling head assembly is ensured.
The upper end of the peripheral side wall of the milling head connecting seat cushion 1 is provided with an upper embedded groove, and a T-shaped key block 3 is fixedly arranged in the upper embedded groove. The T-shaped key block 3 is matched and inserted with a concave key block on a machine tool, so that the assembly and positioning of the milling head connecting seat cushion 1 are realized.
The lower part of the peripheral side wall of the milling head connecting seat cushion 1 is provided with a lower part embedding groove, and a tooth block 9 is fixedly arranged in the lower part embedding groove. The gear block 9 is inserted in a matching way with a rack on the milling head, so that the assembly and positioning of the milling head are realized.
In the present invention, terms such as "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "side", "bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only terms of relationships determined for convenience of describing structural relationships of the parts or elements of the present invention, and are not intended to refer to any parts or elements of the present invention, and are not to be construed as limiting the present invention.
Claims (7)
1. The utility model provides an installation of lathe cutter head is with ultrashort hydro-cylinder straining device, includes cutter head connection seatpad (1), has seted up hydro-cylinder chamber (13) all around of cutter head connection seatpad (1), installs hydro-cylinder in hydro-cylinder chamber (13) and draws claw subassembly (2), its characterized in that: the oil cylinder pull claw assembly (2) comprises a piston (21) which is arranged in an oil cylinder cavity (13) in a vertically sliding mode, a pull nail (5), a gland (22) which is fixedly arranged on the lower end face of the milling head connecting seat cushion (1) and a group of pull claws (6);
an oiling cavity (7) is defined between the piston (21) and the inner wall of the oil cylinder cavity (13), a discharging cavity (8) is defined between the piston (21), the gland (22) and the inner wall of the oil cylinder cavity (13), and a loosening channel cavity (14) communicated with the oiling cavity (7) and a tightening channel cavity (15) communicated with the discharging cavity (8) are formed in the outer side wall of the milling head connecting seat cushion (1);
a pull claw (6) is arranged in a center hole of the gland (22), a tapered groove (221) used for being matched with the lower end of the pull claw (6) is formed in the lower end of the center hole, a pull nail (5) is fixedly arranged in the piston (21), and the lower end of the pull nail (5) is in driving connection with the pull claw (6).
2. The ultra-short cylinder tensioning device for mounting the milling head of the machine tool according to claim 1, wherein: a pull claw convex part (61) extends from the lower side end of the pull claw (6), and a pull claw embedded part (62) extends from the upper side end of the pull claw (6);
a piston end surface groove (23) is formed in the lower end surface of the piston (21), and a gland sleeve (222) which is matched and inserted with the circumferential inner wall of the piston end surface groove (23) extends from the upper end surface of the gland (22);
the middle of the blind rivet (5) is provided with a middle convex ring (52), the center of the upper end face of the middle convex ring (52) extends to form a blind rivet thread section (51), the blind rivet thread section (51) is rotatably installed in the piston (21) through threads, the lower end of the blind rivet (5) extends to form a blind rivet end cap (53), and the blind rivet embedding part (62) is embedded between the middle convex ring (52) and the blind rivet end cap (53).
3. The ultra-short cylinder tensioning device for mounting the milling head of the machine tool according to claim 2, wherein: the oil cylinder cavity (13) comprises an upper matching groove and a lower cavity groove, the upper part of the piston (21) is in sliding fit with the matching groove, a piston annular convex part (24) extends on the side wall of the lower part of the piston (21), and the piston annular convex part (24) is in sliding fit with the cavity groove.
4. The ultra-short cylinder tensioning device for mounting the milling head of the machine tool according to claim 1, wherein: the middle of the milling head connecting seat cushion (1) is provided with a main shaft through hole (11), the lower end face of the milling head connecting seat cushion (1) is provided with a centering step groove (12) corresponding to the main shaft through hole (11), and a centering ring (4) is fixed in the centering step groove (12) in a matched manner.
5. The ultra-short cylinder tensioning device for mounting the milling head of the machine tool according to claim 1, wherein: the upper end of the peripheral side wall of the milling head connecting seat cushion (1) is provided with an upper embedded groove, and a T-shaped key block (3) is fixedly arranged in the upper embedded groove.
6. The ultra-short cylinder tensioning device for mounting the milling head of the machine tool according to claim 1, wherein: the lower part of the lower end of the peripheral side wall of the milling head connecting seat cushion (1) is provided with a lower part embedded groove, and a tooth block (9) is fixedly arranged in the lower part embedded groove.
7. The ultra-short cylinder tensioning device for mounting the milling head of the machine tool according to claim 3, wherein: and sealing rings (100) are embedded in the circumferential outer wall of the annular convex part (24) of the piston, the circumferential inner wall of the end surface groove (23) of the piston and the circumferential inner wall of the matching groove, and the sealing rings (100) matched with the cavity groove are also embedded in the gland (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122101178.3U CN215746658U (en) | 2021-09-02 | 2021-09-02 | Ultrashort oil cylinder tensioning device for mounting milling head of machine tool |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122101178.3U CN215746658U (en) | 2021-09-02 | 2021-09-02 | Ultrashort oil cylinder tensioning device for mounting milling head of machine tool |
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| CN215746658U true CN215746658U (en) | 2022-02-08 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115864274A (en) * | 2023-01-31 | 2023-03-28 | 江东金具设备有限公司 | Corrosion-resistant stable strain clamp and wire clamping method thereof |
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2021
- 2021-09-02 CN CN202122101178.3U patent/CN215746658U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115864274A (en) * | 2023-01-31 | 2023-03-28 | 江东金具设备有限公司 | Corrosion-resistant stable strain clamp and wire clamping method thereof |
| CN115864274B (en) * | 2023-01-31 | 2023-05-26 | 江东金具设备有限公司 | Corrosion-resistant stable strain clamp and clamping method thereof |
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