CN117066848A - Bearing support assembly, positioning support device and press mounting equipment - Google Patents
Bearing support assembly, positioning support device and press mounting equipment Download PDFInfo
- Publication number
- CN117066848A CN117066848A CN202310959234.8A CN202310959234A CN117066848A CN 117066848 A CN117066848 A CN 117066848A CN 202310959234 A CN202310959234 A CN 202310959234A CN 117066848 A CN117066848 A CN 117066848A
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- workpiece
- supporting
- bearing
- positioning
- press
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- 230000002093 peripheral effect Effects 0.000 claims abstract description 8
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 230000000712 assembly Effects 0.000 claims description 2
- 238000000429 assembly Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 9
- 230000008569 process Effects 0.000 abstract description 8
- 230000007246 mechanism Effects 0.000 description 10
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/02—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for connecting objects by press fit or for detaching same
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
- B25B11/02—Assembly jigs
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automatic Assembly (AREA)
Abstract
The application discloses a bearing support assembly, a positioning support device and press-fitting equipment. Wherein the bearing support assembly comprises a bearing portion and a support portion, the bearing portion being movable within a predetermined range relative to the support portion; wherein: the bearing part is provided with a pressed surface and a supported surface, and the pressed surface can be always kept in contact with part of the peripheral surface of the workpiece in the moving process; and the supporting portion is capable of applying a supporting force to the workpiece through the supported surface. The supporting part can apply supporting force to the workpiece through the bearing part serving as the intermediate piece, and when the workpiece moves, the bearing part can move along with the workpiece so as to keep contact with part of the peripheral surface of the workpiece all the time, so that the bearing supporting component can improve the press-fitting efficiency under the working condition of the press-fitting force with a plurality of press-fitting points and a plurality of corresponding angles, and meanwhile, the surface of the workpiece is prevented from being damaged in the supporting process due to good contact between the bearing part and the workpiece.
Description
Technical Field
The application relates to the field of mechanical part assembly, in particular to a bearing and supporting assembly, a positioning and supporting device and press-fitting equipment.
Background
The workpiece (for example, a housing part of an engine, a transmission, etc.) is generally provided with a plurality of press-fitting points, and the other side of the press-fitting points needs to be supported reversely during press-fitting.
Since the devices that provide the press-fit or support force tend to have a large volume and weight, it is often necessary to translate and/or rotate the workpiece after switching the press-fit points to accommodate different positions and/or angular orientations of the different press-fit points.
The existing press-fit supporting mechanism is directly contacted with the surface of the workpiece, and once the workpiece translates and/or rotates relative to the supporting mechanism, the supporting mechanism cannot be well attached to the workpiece any more.
Disclosure of Invention
In view of this, the present application discloses a bearing support assembly comprising a bearing portion and a support portion, wherein the bearing portion is movable within a predetermined range relative to the support portion; wherein: the bearing has a compression surface and a bracing surface, wherein: the pressed surface can always keep contact with part of the peripheral surface of the workpiece in the moving process; and the supporting portion is capable of applying a supporting force to the workpiece through the supported surface.
The application also discloses a positioning and supporting device, which comprises a positioning part, wherein the positioning part is used for arranging a workpiece at a preset position to be suitable for the direction of the press-fitting force; and the bearing support assembly is used for applying supporting force to the workpiece so as to counter the press-fit force applied to the workpiece.
The application also discloses a press-fitting device, wherein the press-fitting device comprises: the positioning and supporting device; and a ram for applying a press-fitting force to the workpiece.
According to the application, the supporting part can apply supporting force to the workpiece through the bearing part serving as the middle piece, and when the workpiece translates and/or rotates, the bearing part can translate and/or rotate along with the workpiece so as to always keep contact with part of the peripheral surface of the workpiece, so that the technical problem that once the workpiece translates and/or rotates relative to the supporting mechanism, the supporting mechanism cannot be attached to the workpiece any more in the prior art is solved, the bearing supporting assembly can improve the press mounting efficiency in the working condition of the press mounting force with a plurality of press mounting points and a plurality of corresponding angles, and meanwhile, the surface of the workpiece is prevented from being damaged in the supporting process due to good contact between the bearing part and the workpiece.
Additional features and advantages of the application will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application, illustrate embodiments of the application and together with the description serve to explain the application. In the drawings:
FIG. 1 is a schematic view of a positioning and supporting device according to an embodiment of the present application, showing a workpiece mounted on a positioning portion of the positioning and supporting device, wherein a letter X and an arrow corresponding thereto indicate a press-fitting force and a direction thereof in one case;
FIG. 2 is a schematic view of part A of FIG. 1, showing structural features of the bearing portion and the supporting portion and positional relationship therebetween, wherein the workpiece is not shown;
fig. 3 is a partial schematic view of B of fig. 1 for illustrating a pin hole structure, in which the work piece is not shown.
Reference numerals: 1-a bearing part, 11-a compression surface, 12-a support surface, 121-a first cambered surface and 122-a second cambered surface; 2-a support part, 21-a first support part, 22-a second support part; 3-a workpiece; 4-positioning part; a 5-pin hole structure; 6-a rotating shaft.
Detailed Description
The technical scheme of the present application will be described in detail below with reference to the accompanying drawings in combination with embodiments.
In the press-fitting process of a workpiece, since there are usually a plurality of points to be press-fitted on the workpiece, and since the equipment for providing the press-fitting force or the supporting force often has a large volume and a large weight, it is often necessary to translate and/or rotate the workpiece after switching the points to be press-fitted to satisfy different positions and/or angular directions of different press-fitting points. However, existing support mechanisms are typically in direct contact with the surface of the workpiece, and once the workpiece translates and/or rotates relative to the support mechanism, the support mechanism no longer conforms well to the workpiece.
In order to overcome the above-mentioned drawbacks of the prior art, the present application discloses a bearing support assembly comprising a bearing portion 1 and a support portion 2, wherein: the bearing part 1 can move in a preset range relative to the supporting part 2; wherein:
the support 1 has a compression surface 11 and a bracing surface 12, wherein: the pressure receiving surface 11 can be kept in contact with a part of the outer peripheral surface of the workpiece 3 at all times during the movement to receive the pressure from the workpiece 3; and, the supporting portion 2 can apply a supporting force to the workpiece 3 through the supported surface 12.
The presently disclosed cradle support assembly improves upon the prior art practice of directly supporting a workpiece 3, and in particular: as shown in fig. 1, the supporting portion 2 of the present application can apply a supporting force to the workpiece 3 through the bearing portion 1 as an intermediate member, when the workpiece 3 moves (including translating and/or rotating), the bearing portion 1 can translate and/or rotate along with the workpiece to keep contact with a part of the outer peripheral surface of the workpiece 3 all the time, so as to overcome the technical problem in the prior art that once the workpiece translates and/or rotates relative to the supporting mechanism, the supporting mechanism cannot be attached to the workpiece any more, so that the bearing and supporting assembly of the present application can improve the press-mounting efficiency in the working condition of the press-mounting force with a plurality of press-mounting points and a plurality of corresponding angles, and avoid damaging the surface of the workpiece during the supporting process due to good contact between the bearing portion 1 and the workpiece 3.
Wherein the bearing part 1 and the supporting part 2 can be kept in constant contact within the predetermined range of relative movement of the two in a suitable manner. For example, the bearing part 1 and the supporting part 2 have a predetermined contact area therebetween, and the area of the contact area is not smaller than the predetermined range of relative movement between the bearing part 1 and the supporting part 2.
In order to reduce stress concentration at the contact surface and to improve the life of the part, it is preferable that at least one of the supported surface 12 and the supporting portion 2 has a smooth curved surface to contact with the other as shown in fig. 2; wherein: the curved surface protrudes outward.
In order to reduce the tangential force to each other when the support part 1 and the support part 2 are in contact with each other, so as to avoid displacement of the workpiece or mechanical damage to the support part, it is preferable that, as shown in fig. 2, the curved surface is provided with a predetermined shape such that, when the support part 1 moves relative to the support part 2, the tangential direction of the curved surface at the point where the force is applied is always substantially perpendicular to the direction of the force applied. Specifically, the predetermined shape is determined according to the direction of the supporting force and the direction of the translation and/or the center of the rotation and the radius, and by a geometric method, and the determination process is common knowledge of geometry.
In order to enable the angle of the supporting force to be adjustable over a larger range, the supported surface 12 may comprise a plurality of said cambered surfaces to withstand a plurality of supporting forces. Preferably, as shown in fig. 2, the supported surface 12 includes a first arcuate surface 121 and a second arcuate surface 122; wherein: the first arc surface 121 and the second arc surface 122 do not have smooth transition, and form a substantially perpendicular position relationship; and, the supporting portion 2 includes a first supporting portion 21 and a second supporting portion 22 that are disposed perpendicular to each other, so as to apply a first supporting force and a second supporting force that are perpendicular to each other to the first arc surface 121 and the second arc surface 122, respectively, where the first supporting force and the second supporting force can be combined into a supporting force in any angular direction within an included angle range of the first supporting force and the second supporting force.
The support 2 and the cradle 1 have a suitable form of relative position to allow the cradle support assembly to be switched between an operative condition in which support is provided and an inoperative condition in which support is not provided, and to allow the amount of support force to be adjusted. Preferably, as shown in fig. 2, the support 2 is arranged to be movable towards or away from the supported surface 12 to a first position contacting the supported surface 12 or a second position away from the supported surface 12; when the support portion 2 and the supported surface 12 are in contact with each other, the magnitude of the supporting force can be adjusted by moving the support portion 2 toward or away from the supported surface 12 to adjust the degree of contact therebetween.
The application also discloses a positioning and supporting device, which comprises a positioning part 4 and the bearing and supporting component, wherein: the positioning part 4 can drive the workpiece 3 to move so as to set the workpiece 3 at a preset position to adapt to the direction of the press fitting force; the cradle support assembly is used to apply a supporting force to the workpiece 3 to counter the press-fit force to which the workpiece 3 is subjected, thereby holding the workpiece 3 in the predetermined position.
In order to make the pressed position of the workpiece 3 adapt to the direction of the press-fitting force, the positioning portion 4 can drive the workpiece 3 to move so as to adjust the position and/or the angular direction of the workpiece 3 relative to the direction of the press-fitting force applied to the workpiece 3; and, the supporting portion 1 can move along with the positioning portion 4 so that the pressing surface 11 can be kept in contact with a part of the outer peripheral surface of the workpiece 3 all the time during the movement.
In order to enable the angle of the supporting force to be adjustable within a larger range, the positioning and supporting device can comprise a plurality of bearing and supporting components which are arranged at intervals, so that the supporting forces provided by the bearing and supporting components can be mutually combined, and the direction of the pressing force can be adapted within a larger angular range. Preferably, as shown in fig. 1, said positioning and supporting means comprises two said bearing and supporting members arranged substantially symmetrically on either side of the workpiece, wherein: the support forces applied by the two bearing support assemblies to the workpiece 3 are substantially in the same plane, which is parallel to the press-fit force, so that the resultant support force better counter-balances the press-fit force.
In order to prevent the press-fitting force and/or the supporting force from being transmitted between the bearing part 1 and the positioning part 4, and to avoid the work-piece displacement or the mechanical damage of the positioning part 4 caused by the direct action of the press-fitting force and/or the supporting force on the positioning part 4, the bearing part 1 is preferably configured to be capable of floating relative to the positioning part 4 in a plane where the press-fitting force and the supporting force are located together. The floating means that the supporting part 1 can also move within a certain range relative to the positioning part on the basis of being capable of following the movement of the positioning part 4, in other words, the connection mode between the supporting part 1 and the positioning part 4 is flexible link instead of rigid connection.
The floating may be achieved in a suitable manner, for example: a movable joint may be provided between the support portion 1 and the positioning portion 4, and the movable joint may include a hinge, a ball joint, or a sliding joint, and may allow the support portion 1 and the positioning portion 4 to relatively move within a predetermined range in a predetermined direction; alternatively, the support 1 and the positioning portion 4 may be connected together using an elastic member (e.g., a spring) that allows the support 1 and the positioning portion 4 to move relatively within a certain range while providing a certain restoring force. Preferably, the floating is achieved by:
as shown in fig. 3, the supporting part 1 is rotatably connected to the positioning part 4 through a rotating shaft 6; a pin hole structure 5 is arranged on the connecting interface of the bearing part 1 and the positioning part 4 at a distance from the rotating shaft 6 so as to limit the relative rotation of the bearing part 1 and the positioning part 4 within a preset range; wherein: one of the support 1 and the positioning 4 is provided with a pin, the other is provided with a hole, the diameter of the pin is smaller than that of the hole, so that the pin can be inserted into the hole and rotate around the rotating shaft 6 within a preset range, and when the rotation angle exceeds the preset range, the contact between the pin and the hole prevents further rotation; the length of the pin is matched to the depth of the hole to ensure that the two do not come out of each other.
The application also discloses a press-fitting device comprising the positioning and supporting device and a press head for applying a press-fitting force to the workpiece 3.
The working process of the present application is described below by taking the press-fitting device according to an embodiment of the present application as an example:
before the press head applies the press-fitting force to the workpiece 3, the positioning portion 4 drives the workpiece 3 to move (translate or rotate) so as to set the workpiece 3 at a predetermined position to be adapted to the direction of the press-fitting force;
the supporting part 2 moves to a first position contacting the supported surface 12, and the bearing part 1 floats relative to the positioning part 4, so that the press-fitting force and/or supporting force are not transmitted between the bearing part 1 and the positioning part 4, and the workpiece displacement or the mechanical damage of the positioning part 4 caused by the direct action of the press-fitting force and/or supporting force on the positioning part 4 is avoided;
the ram gradually applies a press-fitting force to the workpiece 3, and in synchronization with this, the support portion 2 also accordingly provides a support force to the workpiece 3 to counter the press-fitting force.
In describing the present application, it should be noted that: the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate an azimuth or a positional relationship based on that shown in the drawings, or that is conventionally put in place when the technical features are used, merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the technical features referred to must have a specific azimuth, be configured and operated in a specific azimuth, and therefore should not be construed as limiting the present application; the terms "first," "second," "third," and the like, are used solely for distinguishing between descriptions and should not be construed as indicating or implying a relative importance; the terms "horizontal," "vertical," "overhang," and the like do not denote that the component is required to be absolutely horizontal or overhang, but rather may be slightly inclined (e.g., "horizontal" merely means that its direction is more horizontal than "vertical" and does not denote that the structure must be entirely horizontal, but may be slightly inclined); the terms "substantially," "essentially," and "approximately" mean that a certain feature or range is somewhat similar or approaching a predetermined requirement, but need not be completely consistent, which implies some flexibility and scope of variation, allowing for certain modifications without affecting its core concept or functionality; furthermore, unless explicitly stated and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art in combination with specific cases.
The preferred embodiments of the present application have been described in detail above, but the present application is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present application within the scope of the technical concept of the present application, and all the simple modifications belong to the protection scope of the present application.
In addition, the specific features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various possible combinations are not described further.
Moreover, any combination of the various embodiments of the application can be made without departing from the spirit of the application, which should also be considered as disclosed herein.
Claims (10)
1. A bearing support assembly comprising a bearing portion (1) and a support portion (2), characterized in that the bearing portion (1) is movable within a predetermined range with respect to the support portion (2); wherein:
the support (1) has a compression surface (11) and a support surface (12), wherein: the pressure-receiving surface (11) can be kept in contact with a part of the outer peripheral surface of the workpiece (3) all the time during the movement; and, the support (2) is capable of applying a supporting force to the workpiece (3) through the supported surface (12).
2. The cradle support assembly of claim 1, wherein:
at least one of the supported surface (12) and the support (2) has a smoothly curved surface to be in contact with the other; wherein: the curved surface protrudes outward.
3. The cradle support assembly of claim 2, wherein: the curved surface is provided with a preset shape, so that when the bearing part (1) moves relative to the supporting part (2), the tangential direction of the curved surface at the stressed position is perpendicular to the direction of the stressed force.
4. The cradle support assembly of claim 2, wherein:
the supported surface (12) comprises a first cambered surface (121) and a second cambered surface (122); and
the supporting part (2) comprises a first supporting part (21) and a second supporting part (22) which are arranged perpendicular to each other, so as to apply a first supporting force and a second supporting force which are perpendicular to each other to the first cambered surface (121) and the second cambered surface (122) respectively.
5. The cradle support assembly of any one of claims 1-4, wherein: the support (2) is arranged to be movable towards or away from the supported surface (12).
6. A positioning and supporting device, comprising:
a positioning portion (4), wherein the positioning portion (4) is used for setting the workpiece (3) at a preset position to adapt to the direction of the press fitting force; and
the cradle support assembly of any one of claims 1-5, for applying a supporting force to the workpiece (3) to counter the press-fit force to which the workpiece (3) is subjected.
7. The positioning support device of claim 6 wherein:
the positioning part (4) can drive the workpiece (3) to move so as to adjust the position and/or the angular direction of the workpiece (3) relative to the direction of the press-fit force applied by the workpiece (3); and, the support part (1) can move along with the positioning part (4);
and/or the number of the groups of groups,
the positioning and supporting device comprises two bearing and supporting components symmetrically arranged on two sides of a workpiece, wherein: the supporting forces applied to the workpiece (3) by the two bearing and supporting assemblies are in the same plane.
8. The positioning support device of claim 6 or 7, wherein: the bearing part (1) is arranged to be capable of floating relative to the positioning part (4) in a plane where the press-fitting force and the supporting force are located together.
9. The positioning support device of claim 8 wherein:
the bearing part (1) is rotatably connected with the positioning part (4) through a rotating shaft (6); and
a pin hole structure (5) is arranged at a position which is spaced from the rotating shaft (6) on the connecting interface of the bearing part (1) and the positioning part (4); wherein: one of the bearing part (1) and the positioning part (4) is provided with a pin, and the other is provided with a hole, and the diameter of the pin is smaller than that of the hole, so that the pin can be inserted into the hole and rotate around the rotating shaft (6) within a preset range.
10. A press-fitting apparatus, characterized in that the press-fitting apparatus comprises:
the positioning support device of any one of claims 6-9; and
a ram for applying a press-fitting force to the workpiece (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310959234.8A CN117066848B (en) | 2023-08-01 | 2023-08-01 | Bearing support assembly, positioning support device and press mounting equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310959234.8A CN117066848B (en) | 2023-08-01 | 2023-08-01 | Bearing support assembly, positioning support device and press mounting equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117066848A true CN117066848A (en) | 2023-11-17 |
| CN117066848B CN117066848B (en) | 2024-06-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310959234.8A Active CN117066848B (en) | 2023-08-01 | 2023-08-01 | Bearing support assembly, positioning support device and press mounting equipment |
Country Status (1)
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|---|---|
| CN (1) | CN117066848B (en) |
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| Publication number | Publication date |
|---|---|
| CN117066848B (en) | 2024-06-04 |
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