CN219484977U - A special automatic clamping device for automobile wheel hub processing - Google Patents
A special automatic clamping device for automobile wheel hub processing Download PDFInfo
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- CN219484977U CN219484977U CN202320941130.XU CN202320941130U CN219484977U CN 219484977 U CN219484977 U CN 219484977U CN 202320941130 U CN202320941130 U CN 202320941130U CN 219484977 U CN219484977 U CN 219484977U
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- drag hook
- hub
- clamping device
- hook mechanism
- positioning
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- 238000012545 processing Methods 0.000 title claims abstract description 7
- 230000007246 mechanism Effects 0.000 claims abstract description 103
- 230000006835 compression Effects 0.000 claims abstract description 21
- 238000007906 compression Methods 0.000 claims abstract description 21
- 238000003825 pressing Methods 0.000 claims abstract description 17
- 238000003754 machining Methods 0.000 claims description 20
- 238000005452 bending Methods 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 230000007704 transition Effects 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000006872 improvement Effects 0.000 description 11
- 239000003921 oil Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 3
- 230000001174 ascending effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Abstract
The utility model discloses a special automatic clamping device for automobile hub processing, which relates to the technical field of automobile manufacturing, and comprises a machine base, a drag hook mechanism, a positioning mandrel and a lifting mechanism, wherein the drag hook mechanism is arranged on the machine base; the positioning mandrel is arranged on the stand and used for positioning the hub; a plurality of supporting upright posts used for supporting the hub are arranged on the stand around the positioning mandrel; the lower end of the drag hook mechanism passes through the positioning mandrel and then is connected with the lifting mechanism, and the upper end of the drag hook mechanism is provided with a drag hook part for pressing the hub; the lifting mechanism is connected with an external power source and is used for driving the drag hook mechanism to lift, so that the compression and the release of the hub are realized.
Description
Technical Field
The utility model relates to the technical field of automobile manufacturing, in particular to a special automatic clamping device for automobile hub machining.
Background
With the rapid development of the automobile industry, the requirements on the performance and the precision of an automobile axle are higher and higher, and particularly, the requirements on adaptation to an expressway, reduction of vibration, improvement of comfort, prolonged service life and the like are raised. The hub is used as a key part of an automobile axle, besides the improvement of the requirements on the aspects of materials and light weight, the hub must be comprehensively lifted in the aspects of machining precision, runout, concentricity and the like so as to ensure that the working play and dynamic balance of the bearing meet the requirements, and the requirements on machining equipment, machining process, tool fixtures and the like of the hub are higher. Therefore, the tool clamp for improving and designing the hub machining is one of the most effective and simple methods for improving the hub machining precision.
Disclosure of Invention
Aiming at the defects in the prior art, the utility model aims to provide a special automatic clamping device for processing an automobile hub, which has the advantages of simple and practical structure, easy manufacture, practicability and reliability.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the special automatic clamping device for machining the automobile hub comprises a machine base, a drag hook mechanism, a positioning mandrel and a lifting mechanism; the positioning mandrel is arranged on the machine base and used for positioning the hub; a plurality of supporting columns for supporting the wheel hubs are arranged on the machine base around the positioning mandrel; the lower end of the drag hook mechanism penetrates through the positioning mandrel and then is connected with the lifting mechanism, and the upper end of the drag hook mechanism is provided with a drag hook part for pressing the hub; the lifting mechanism is connected with an external power source and used for driving the drag hook mechanism to lift, so that the compression and the release of the hub are realized.
The further improvement is that: the drag hook mechanism is connected with the lifting mechanism in a autorotation way, and when the drag hook mechanism is upwards moved, the drag hook part inwards turns to the central axis position of the hub, so that the hub can be conveniently taken and placed; when the drag hook mechanism descends, the drag hook part turns outwards and compresses the hub.
The further improvement is that: the drag hook mechanism comprises a rod body, the upper end of the rod body is provided with a drag hook part, and the lower end of the rod body is provided with a connecting part for connecting the lifting mechanism; the outer side face of the rod body is provided with a spiral groove, the inner side wall of the positioning mandrel is provided with a compression screw matched with the spiral groove, and when the drag hook mechanism moves up and down, the compression screw slides along the spiral groove, so that the drag hook mechanism is driven to rotate.
The further improvement is that: the end part of the drag hook part is downwards bent to form a bending part, and the pressing surface at the lower end of the bending part is provided with an arc-shaped surface matched with the hub contact surface.
The further improvement is that: the end part of the compression screw is provided with a pressure head, the contact surface of the pressure head and the spiral groove is an arc-shaped surface, and the joint of the pressure head and the compression screw is provided with a limiting step.
The further improvement is that: the machine seat is provided with a cavity for accommodating the lifting mechanism at a position below the positioning mandrel, and a communication hole is formed in the bottom of the cavity; the lifting mechanism is connected with an external power source through the communication hole.
The further improvement is that: the positioning mandrel comprises a cylinder, a plurality of guide channels for the drag hook mechanism to pass through are longitudinally arranged in the cylinder, a flange plate used for connecting the machine base is arranged at the lower end of the outer side of the cylinder, a plurality of screw holes used for installing compression screws are transversely arranged in the flange plate in a penetrating manner, and the screw holes correspond to the guide channels one by one and are communicated with the guide channels.
The further improvement is that: the lifting mechanism comprises a pull plate and a connecting screw rod; the middle part of the pulling plate is provided with a central hole, and a plurality of mounting holes are formed in the periphery of the pulling plate; the upper end of the connecting screw rod is connected with the central hole, and the lower end of the connecting screw rod is connected with an external power source; the mounting holes are in one-to-one correspondence with the drag hook mechanisms, and the lower ends of the drag hook mechanisms are locked through locking nuts after penetrating through the mounting holes.
The further improvement is that: the upper end of the connecting screw rod is sequentially provided with a first positioning sleeve, an extension transition sleeve and a positioning nut; a second positioning sleeve matched with the drag hook mechanism is arranged between the lock nut and the pull plate, and a cotter pin is arranged at the position of the drag hook mechanism below the lock nut.
The further improvement is that: the connecting parts of the pull plate are respectively provided with conical chamfers at the two ends of the central hole and the two ends of the mounting hole, the upper end of the first positioning sleeve and the upper end of the second positioning sleeve and the connecting part of the drag hook mechanism.
The utility model has the beneficial effects that:
in the utility model, the spiral groove of the drag hook mechanism has unique design, accurate movement and reasonable design of loosening and tensioning angles, is convenient for loading and unloading the hub, ensures flexible and accurate movement, reduces the processing cost and is economical and reasonable.
Drawings
FIG. 1 is a schematic view of a special automatic clamping device in an embodiment of the utility model;
FIG. 2 is a schematic view of a frame according to an embodiment of the present utility model;
FIG. 3 is a schematic view of a positioning mandrel according to an embodiment of the present utility model;
FIG. 4 is a cross-sectional view of a positioning mandrel in an embodiment of the utility model;
FIG. 5 is a schematic view of a pressing screw according to an embodiment of the present utility model;
FIG. 6 is a schematic view of a lifting mechanism according to an embodiment of the present utility model;
FIG. 7 is a schematic view of a pull plate according to an embodiment of the present utility model;
FIG. 8 is a schematic diagram of a retractor mechanism according to an embodiment of the present utility model;
FIG. 9 is a right side view of FIG. 8;
FIG. 10 is a schematic view of a clamping state of a special automatic clamping device according to an embodiment of the present utility model;
fig. 11 is a schematic view of a structure of a released state of a special automatic clamping device according to an embodiment of the present utility model.
Reference numerals:
1-a stand; 11-cavity; 12-communicating holes; 13-supporting the upright;
2-positioning a mandrel; 21-a cylinder; 22-guiding channels; 23-a flange plate; 24-screw holes; 25-pressing a screw; 26-pressing head; 27-limiting steps;
3-drag hook mechanism; 31-a rod body; 32-helical grooves; 33-a retractor portion; 34-a bend; 35-pressing surface; 36-connecting part;
4-a lifting mechanism; 41-pulling plates; 411-central aperture; 412-mounting holes; 42-connecting a screw; 43-first positioning sleeve; 44-extending the transition sleeve; 45-positioning nuts; 46-locking nut; 47-a second positioning sleeve; 48-cotter pin.
Detailed Description
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout.
In the description of the present utility model, it should be noted that, for the azimuth words such as the terms "center", "transverse (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the azimuth and positional relationships are based on the azimuth or positional relationships shown in the drawings, only for convenience of describing the present utility model and simplifying the description, but do not indicate or imply that the apparatus or element to be referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and should not be construed as limiting the specific protection scope of the present utility model.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features. Thus, the definition of "a first", "a second" feature may explicitly or implicitly include one or more of such feature, and in the description of the present utility model, the meaning of "a number", "a number" is two or more, unless otherwise specifically defined.
The technical scheme and the beneficial effects of the utility model are more clear and definite by further describing the specific embodiments of the utility model with reference to the drawings in the specification. The embodiments described below are exemplary by referring to the drawings for the purpose of illustrating the utility model and are not to be construed as limiting the utility model.
Referring to fig. 1, the embodiment of the utility model provides a special automatic clamping device for processing an automobile hub, which comprises a machine base 1, a drag hook mechanism 3, a positioning mandrel 2 and a lifting mechanism 4;
referring to fig. 3 and 4, a positioning mandrel 2 is provided on the machine base 1 for positioning the hub; specifically, the positioning mandrel 2 comprises a cylinder 21, a plurality of guide channels 22 for the drag hook mechanism 3 to pass through are longitudinally arranged in the cylinder 21, a flange plate 23 for connecting the machine base 1 is arranged at the lower end of the outer side of the cylinder 21, a plurality of screw holes 24 for installing compression screws 25 are transversely arranged in the flange plate 23 in a penetrating manner, and the screw holes 24 are in one-to-one correspondence with the guide channels 22 and are communicated with the guide channels. Referring to fig. 5, the end of the compression screw 25 is provided with a pressing head 26, the contact surface of the pressing head 26 and the spiral groove 32 is an arc surface, and the joint of the pressing head 26 and the compression screw 25 is provided with a limit step 27, so that good motion fit and stress effect with the spiral groove are ensured. The motion part and the spiral groove of the drag hook mechanism, which are contacted with the positioning mandrel, are both filled with lubricating oil, so that the motion is flexible, and friction and clamping stagnation are reduced.
Referring to fig. 2, a plurality of support columns 13 for supporting a hub are arranged on the stand 1 around the positioning mandrel 2; specifically, a cavity 11 for accommodating the lifting mechanism 4 is arranged at the position of the base 1 below the positioning mandrel 2, and a communication hole 12 is formed in the bottom of the cavity 11; the lifting mechanism 4 is connected to an external power source through the communication hole 12.
Referring to fig. 8 and 9, the lower end of the drag hook mechanism 3 passes through the positioning mandrel 2 and then is connected with the lifting mechanism 4, and the upper end of the drag hook mechanism 3 is provided with a drag hook part 33 for pressing a hub; specifically, the drag hook mechanism 3 is connected with the lifting mechanism 4 in a rotatable manner, and when the drag hook mechanism 3 is upwards moved, the drag hook part 33 inwards turns to the central axis position of the hub, so that the hub is conveniently taken and placed; when the retractor mechanism 3 is down, the retractor portion 33 is turned outwards and presses against the hub. The drag hook mechanism 3 comprises a rod body 31, a drag hook part 33 is arranged at the upper end of the rod body 31, and a connecting part 36 for connecting the lifting mechanism 4 is arranged at the lower end of the rod body 31; the lateral surface of the rod body 31 is provided with a spiral groove 32, the inner side wall of the positioning mandrel 2 is provided with a compression screw 25 matched with the spiral groove 32, and when the drag hook mechanism 3 performs lifting movement, the compression screw 25 slides along the spiral groove 32, so that the drag hook mechanism 3 is driven to rotate. The end of the draw hook 33 is bent downwards to form a bending part 34, and a pressing surface 35 at the lower end of the bending part 34 is provided with an arc-shaped surface matched with the hub contact surface.
Referring to fig. 6 and 7, the lifting mechanism 4 is connected with an external power source and is used for driving the drag hook mechanism 3 to lift, so as to compress and loosen the hub. Specifically, the lifting mechanism 4 includes a pulling plate 41 and a connecting screw 42; the middle part of the pulling plate 41 is provided with a central hole 411, and the periphery of the pulling plate 41 is provided with a plurality of mounting holes 412; the upper end of the connecting screw rod 42 is connected with the central hole 411, and the lower end of the connecting screw rod 42 is connected with an external power source; the mounting holes 412 are in one-to-one correspondence with the drag hook mechanisms 3, and the lower ends of the drag hook mechanisms 3 pass through the mounting holes 412 and are locked by the locking nuts 46. The upper end of the connecting screw rod 42 is sequentially provided with a first positioning sleeve 43, an extension transition sleeve 44 and a positioning nut 45, so that interference with a tail locking part of the drag hook mechanism can be prevented when the connecting screw rod is connected with the oil cylinder; a second locating sleeve 47 matched with the drag hook mechanism 3 is arranged between the lock nut 46 and the pull plate 41, and an opening pin 48 is arranged at the position of the drag hook mechanism 3 below the lock nut 46 to prevent the drag hook mechanism from loosening. The two ends of the central hole 411 and the two ends of the mounting hole 412 of the pulling plate 41, the upper ends of the first positioning sleeve 43 and the second positioning sleeve 47 and the connecting part 36 of the pulling hook mechanism 3 are respectively provided with conical chamfers, so that the accurate connection and matching movement of the pulling hook mechanism is ensured, and the pulling hook mechanism is not easy to loosen.
Referring to fig. 10 and 11, the working principle of the present utility model is as follows:
1. the lower end of the connecting screw is connected with a power source hydraulic oil cylinder, the oil cylinder drives the connecting screw 11 to move up and down, and the connecting screw drives the pulling plate and the drag hook mechanism to move up and down;
2. the oil cylinder drives the connecting screw rod to ascend, at the moment, as the compression screw is screwed into the spiral groove of the drag hook mechanism, the drag hook mechanism automatically rotates when ascending, the drag hook parts of the 4 drag hook mechanisms synchronously turn to the inner side (the position of the central line of the shaft), and the drag hook parts of the 4 drag hook mechanisms are at the minimum position (the loosening state), so that the hub can be conveniently put in and taken out;
3. the hub is arranged on the positioning mandrel and the supporting upright post, and the supporting upright post supports the hub;
4. the oil cylinder drives the connecting screw rod to move downwards (pull down), at the moment, the compression screw is screwed into the spiral groove of the drag hook mechanism, the drag hook mechanism automatically rotates downwards, the drag hook parts of the 4 drag hook mechanisms turn to the outer side to open, the drag hook parts of the 4 drag hook mechanisms hook the inner end face of the hub, and the hub is tensioned (compressed), so that the hub is fixed;
5. after the hub is clamped, starting a machine tool to start machining the upper inner hole, the upper outer spigot and the like of the hub for one-time clamping, and performing one-cutter machining, so that good concentricity and verticality of the inner and outer dimensions are ensured;
6. after the hub is machined, the oil cylinder drives the connecting screw rod to ascend, at the moment, as the compression screw is screwed into the spiral groove of the drag hook mechanism, the drag hook mechanism automatically rotates when ascending, the drag hook parts of the 4 drag hook mechanisms turn to the inner side (the position of the central line of the shaft), and the drag hook parts of the 4 drag hook mechanisms are at the minimum position and hang out the hub;
7. the clamping and hanging of the machining hub 1 are completed in one machining cycle.
In the description of the present utility model, a description of the terms "one embodiment," "preferred," "example," "specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model, and a schematic representation of the terms described above in the present specification does not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
From the above description of the structure and principles, it should be understood by those skilled in the art that the present utility model is not limited to the above-described embodiments, but rather that modifications and substitutions using known techniques in the art on the basis of the present utility model fall within the scope of the present utility model, which is defined by the appended claims.
Claims (10)
1. A special automatic clamping device for automobile wheel hub processing, includes frame (1), its characterized in that: the device also comprises a drag hook mechanism (3), a positioning mandrel (2) and a lifting mechanism (4);
the positioning mandrel (2) is arranged on the machine base (1) and is used for positioning the hub;
a plurality of supporting upright posts (13) for supporting the hub are arranged on the stand (1) around the positioning mandrel (2);
the lower end of the drag hook mechanism (3) passes through the positioning mandrel (2) and then is connected with the lifting mechanism (4), and the upper end of the drag hook mechanism (3) is provided with a drag hook part (33) for pressing a hub;
the lifting mechanism (4) is connected with an external power source and is used for driving the drag hook mechanism (3) to lift, so that the compression and the release of the hub are realized.
2. The special automatic clamping device for automobile hub machining according to claim 1, wherein: the drag hook mechanism (3) is connected with the lifting mechanism (4) in a autorotation way, and when the drag hook mechanism (3) is upwards arranged, the drag hook part (33) inwards turns to the central axis position of the hub, so that the hub can be conveniently taken and placed; when the drag hook mechanism (3) descends, the drag hook part (33) turns outwards and presses the hub.
3. The special automatic clamping device for automobile hub machining according to claim 2, wherein: the drag hook mechanism (3) comprises a rod body (31), a drag hook part (33) is arranged at the upper end of the rod body (31), and a connecting part (36) for connecting the lifting mechanism (4) is arranged at the lower end of the rod body (31); the outer side face of the rod body (31) is provided with a spiral groove (32), the inner side wall of the positioning mandrel (2) is provided with a compression screw (25) matched with the spiral groove (32), and when the drag hook mechanism (3) performs lifting movement, the compression screw (25) slides along the spiral groove (32), so that the drag hook mechanism (3) is driven to rotate.
4. A special self-clamping device for automotive hub machining as claimed in claim 3, wherein: the end part of the drag hook part (33) is downwards bent to form a bending part (34), and a pressing surface (35) at the lower end of the bending part (34) is provided with an arc-shaped surface matched with the hub contact surface.
5. A special self-clamping device for automotive hub machining as claimed in claim 3, wherein: the end of the compression screw (25) is provided with a pressing head (26), the contact surface of the pressing head (26) and the spiral groove (32) is an arc surface, and the joint of the pressing head (26) and the compression screw (25) is provided with a limiting step (27).
6. The special automatic clamping device for automobile hub machining according to claim 1, wherein: a cavity (11) for accommodating the lifting mechanism (4) is formed in the position, below the positioning mandrel (2), of the base (1), and a communication hole (12) is formed in the bottom of the cavity (11); the lifting mechanism (4) is connected with an external power source through the communication hole (12).
7. The special automatic clamping device for automobile hub machining according to claim 1, wherein: the positioning mandrel (2) comprises a cylinder (21), a plurality of guide channels (22) for the drag hook mechanism (3) to pass through are longitudinally formed in the cylinder (21), a flange plate (23) for connecting the machine base (1) is arranged at the lower end of the outer side of the cylinder (21), a plurality of screw holes (24) for installing compression screws (25) are transversely formed in the flange plate (23) in a penetrating mode, and the screw holes (24) correspond to the guide channels (22) one by one and are communicated with the guide channels.
8. The special automatic clamping device for automobile hub machining according to claim 1, wherein: the lifting mechanism (4) comprises a pulling plate (41) and a connecting screw rod (42); the middle part of the pull plate (41) is provided with a central hole (411), and a plurality of mounting holes (412) are formed in the periphery of the pull plate (41); the upper end of the connecting screw rod (42) is connected with the central hole (411), and the lower end of the connecting screw rod (42) is connected with an external power source; the mounting holes (412) are in one-to-one correspondence with the drag hook mechanisms (3), and the lower ends of the drag hook mechanisms (3) penetrate through the mounting holes (412) and are locked through locking nuts (46).
9. The special automatic clamping device for automobile hub machining according to claim 8, wherein: the upper end of the connecting screw rod (42) is sequentially provided with a first positioning sleeve (43), an extension transition sleeve (44) and a positioning nut (45); a second locating sleeve (47) matched with the drag hook mechanism (3) is arranged between the lock nut (46) and the pull plate (41), and a cotter pin (48) is arranged at the position of the drag hook mechanism (3) below the lock nut (46).
10. The special automatic clamping device for automobile hub machining according to claim 9, wherein: conical chamfer angles are respectively arranged at two ends of a central hole (411) and two ends of a mounting hole (412) of the pulling plate (41), the upper end of the first positioning sleeve (43) and the upper end of the second positioning sleeve (47) and the connecting part (36) of the drag hook mechanism (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320941130.XU CN219484977U (en) | 2023-04-23 | 2023-04-23 | A special automatic clamping device for automobile wheel hub processing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320941130.XU CN219484977U (en) | 2023-04-23 | 2023-04-23 | A special automatic clamping device for automobile wheel hub processing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219484977U true CN219484977U (en) | 2023-08-08 |
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ID=87475889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320941130.XU Active CN219484977U (en) | 2023-04-23 | 2023-04-23 | A special automatic clamping device for automobile wheel hub processing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219484977U (en) |
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2023
- 2023-04-23 CN CN202320941130.XU patent/CN219484977U/en active Active
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| GR01 | Patent grant | ||
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Denomination of utility model: A dedicated automatic clamping device for automotive wheel hub processing Granted publication date: 20230808 Pledgee: Agricultural Bank of China Limited Shiyan Economic Development Zone Branch Pledgor: HUBEI HEDE INDUSTRIAL TECHNOLOGY CO.,LTD. Registration number: Y2024980002145 |