CN217301316U

CN217301316U - Fitting tool

Info

Publication number: CN217301316U
Application number: CN202221107705.XU
Authority: CN
Inventors: 卞丽莉; 陈尚谕; 高鹏
Original assignee: Changzhou Guangyang Bearing Co Ltd
Current assignee: Changzhou Guangyang Bearing Co Ltd
Priority date: 2022-05-10
Filing date: 2022-05-10
Publication date: 2022-08-26
Anticipated expiration: 2032-05-10

Abstract

The utility model relates to a thrust bearing technical field especially relates to a cover frock closes. The fitting tool is used for assembling a first workpiece and a second workpiece. The sleeve combining tool comprises a lower die and an upper die, wherein the lower die comprises a base and a guide bulge arranged on the base, the diameter of the guide bulge is gradually reduced along the direction of keeping away from the base, the diameters of two ends of the guide bulge are respectively a first diameter and a second diameter, the second diameter is smaller than the inner diameter of a second workpiece, the first diameter is not smaller than the inner diameter of the second workpiece, when the first workpiece and the second workpiece are assembled, the upper die can drive the first workpiece to be sleeved on the second workpiece, therefore, the quick sleeve combining assembly of the first workpiece and the second workpiece is realized, an operator is not required to use hand pliers for carrying out, and the assembly efficiency is improved. Meanwhile, the guide bulge can provide guide for downward movement of the second workpiece and can provide resistance for downward movement of the second workpiece, and the application range of the fitting tool is favorably expanded.

Description

Fitting tool

Technical Field

The utility model relates to a thrust bearing technical field especially relates to a cover frock closes.

Background

The thrust bearing is a special bearing for bearing axial force, namely a bearing for bearing force in a direction parallel to the shaft. The thrust bearing comprises a first workpiece and a second workpiece, wherein the first workpiece and the second workpiece are both in circular ring structures. In the working process, the first workpiece is sleeved on the periphery of the second workpiece, and the first workpiece and the second workpiece are in interference fit.

In the prior art, the assembly process of the first workpiece and the second workpiece is manually completed by an operator by using a hand clamp, but the gap between the outer diameter of the second workpiece and the inner diameter of the first workpiece is too small, so that the operator is difficult to operate by using the hand clamp.

In order to solve the above problems, it is desirable to provide a fitting tool, which solves the problem that an operator has difficulty in fitting a second workpiece and a first workpiece by using a hand clamp.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a close cover frock to reach the effect that second work piece closed the equipment with first work piece fast.

To achieve the purpose, the utility model adopts the following technical proposal:

a fitting tool configured to be assembled onto annular first and second workpieces, the fitting tool comprising:

the lower die comprises a base and a guide bulge arranged on the base, the diameter of the guide bulge is gradually reduced along the direction far away from the base, the diameters of two ends of the guide bulge are respectively a first diameter and a second diameter, the second diameter is smaller than the inner diameter of the second workpiece, and the first diameter is not smaller than the inner diameter of the second workpiece; and

and the upper die can drive the first workpiece to be sleeved on the second workpiece when the first workpiece and the second workpiece are assembled.

Optionally, an included angle between the side edge of the guide protrusion and the central axis of the guide protrusion is 70 ° to 89 °.

Optionally, the upper mold includes:

and the end surface of the abutting piece facing the lower die is an annular abutting surface, and part of the abutting surface can be partially or completely abutted with the upper end surface of the first workpiece.

Optionally, the abutment member is provided with an avoidance slot.

Optionally, the upper mold further includes:

the first limiting ring is arranged on the abutting surface and protrudes towards the lower die, and the inner diameter of the first limiting ring is larger than the outer diameter of the first workpiece.

Optionally, an avoiding hole is formed in one end, away from the lower die, of the upper die, and the inner diameter of the avoiding hole is larger than the outer diameter of the guide protrusion.

Optionally, the upper mold further includes:

a hand piece disposed on the abutment piece.

Optionally, the number of the handpieces is two, and the two handpieces are oppositely arranged on two sides of the abutting piece.

Optionally, the lower mold further includes:

the second limiting ring is arranged on the end face, facing the upper die, of the base, and the inner diameter of the second limiting ring is larger than the outer diameter of the abutting face.

Optionally, the height of the second stop collar is less than the guide projection.

The beneficial effects of the utility model are that:

the utility model provides a set frock closes, should close set frock and be used for assembling first work piece and second work piece. The sleeve combining tool comprises a lower die and an upper die. The lower die comprises a base and a guide protrusion arranged on the base, the diameter of the guide protrusion is gradually reduced along the direction far away from the base, the diameters of two ends of the guide protrusion are respectively a first diameter and a second diameter, the second diameter is smaller than the inner diameter of a second workpiece, the first diameter is not smaller than the inner diameter of the second workpiece, when the first workpiece and the second workpiece are assembled, the upper die can drive the first workpiece to be sleeved on the second workpiece, therefore, the first workpiece and the second workpiece can be assembled in a fast sleeved mode, the manual pliers are not needed to be used by an operator, and the assembly efficiency is improved. Simultaneously, because the bellied diameter of direction is followed first diameter and is passed through gradually to the second diameter all the time, can enough provide the direction for the downstream of second work piece, can provide the resistance for the downstream of second work piece again, and be favorable to making this suit frock can be applicable to the first work piece and the second work piece of equipment different diameters, realize expanding this application scope who closes the suit frock.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required to be used in the description of the embodiments of the present invention 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 the contents of the embodiments of the present invention and the drawings without creative efforts.

Fig. 1 is a first schematic structural diagram of a fitting tool provided by an embodiment of the present invention;

FIG. 2 is an enlarged partial schematic view at A of FIG. 1;

fig. 3 is a schematic structural diagram ii of the fitting tool provided in the embodiment of the present invention.

The figures are labeled as follows:

100-thrust piece;

200-inner cover; 210-an inner shroud body; 220-fixing the projection; 230-a support ring;

300-lower die; 310-a base; 320-a guide projection; 330-a second stop collar;

400-upper die; 410-an abutment; 411-an abutment face; 412-avoidance slot; 420-a first stop collar; 430-avoidance holes; 440 — handpiece.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be noted that, for convenience of description, only a part of the structure related to the present invention is shown in the drawings, not the whole structure.

In the description of the present invention, unless otherwise explicitly specified or limited, the terms "connected", "connected" and "fixed" are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be structurally related or interoperable between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the recitation of a first feature "on" or "under" a second feature may include the recitation of the first and second features being in direct contact, and may also include the recitation of the first and second features not being in direct contact, but being in contact with another feature between them. Also, the first feature "on," "above" and "over" the second feature may include the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are used in the orientation or positional relationship shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

As shown in fig. 1, the thrust bearing is a special bearing for receiving a force in an axial direction, that is, a bearing for receiving a force in a direction parallel to the axis. The thrust bearing comprises a first workpiece and a second workpiece, wherein the first workpiece and the second workpiece are both in circular ring structures. In the working process, the first workpiece is sleeved on the periphery of the second workpiece, and the first workpiece and the second workpiece are in interference fit. In this example, the first workpiece is the thrust plate 100, and the second workpiece is the inner cover 200, but in other embodiments, the first workpiece and the second workpiece may have other structures, and this embodiment is not limited thereto.

As shown in fig. 2, specifically, the inner cover 200 includes an inner cover 200 body and a fixing protrusion 220 disposed on an outer diameter of the inner cover 200 body, and a dimension of an inner diameter of the thrust piece 100 is between an outer diameter of the inner cover 200 and an outer diameter of the fixing protrusion 220, so that when the thrust piece 100 is sleeved on the inner cover 200, the inner diameter of the thrust piece 100 and the fixing protrusion 220 of the inner cover 200 form an interference fit, and the fixing protrusion 220 is clamped at a corresponding position of the inner diameter of the thrust piece 100, thereby fixing a relative position of the thrust piece 100 and the inner cover 200.

Meanwhile, the inner cover 200 further includes a support ring 230 disposed at one end of the body of the inner cover 200, and the support ring 230 is disposed to protrude from the outer diameter of the body of the inner cover 200, so that when the thrust plate 100 is assembled in place on the inner cover 200, the end surface of the thrust plate 100 facing the inner cover 200 can abut against the end surface of the support ring 230, generally determining the relative position of the thrust plate 100 and the inner cover 200.

In the prior art, in order to assemble the thrust plate and the inner cover, an operator generally completes the assembly by hand through hand pliers. However, the clearance between the outer diameter of the fixing protrusion of the inner cover and the inner diameter of the thrust piece is too small due to the limitation of the fixing protrusion, so that the manual pliers are difficult to operate by an operator.

In order to solve the above problems, as shown in fig. 1 to 3, the present embodiment provides a fitting tool, the fitting tool is used for assembling the thrust plate 100 and the inner cover 200, an inner diameter of the thrust plate 100 is not greater than an outer diameter of a corresponding position of the inner cover 200, that is, an inner diameter of the thrust plate 100 is not greater than an outer diameter of the fixing protrusion 220. The fitting tool comprises a lower die 300 and an upper die 400. The lower mold 300 includes a base 310 and a guide protrusion 320 disposed on the base 310, the diameter of the guide protrusion 320 is gradually reduced along a direction away from the base 310, the diameters of two ends of the guide protrusion 320 are respectively a first diameter and a second diameter, the second diameter is smaller than the inner diameter of the inner cover 200, the first diameter is not smaller than the inner diameter of the inner cover 200, when the thrust plate 100 and the inner cover 200 are assembled, the upper mold 400 can drive the thrust plate 100 to be sleeved on the inner cover 200, thereby realizing the rapid sleeving assembly of the thrust plate 100 and the inner cover 200, and an operator does not need to use hand pliers, which is beneficial to improving the assembly efficiency. Meanwhile, the diameter of the guide protrusion 320 gradually transitions from the first diameter to the second diameter, so that the guide can be provided for the downward movement of the inner cover 200, the resistance can be provided for the downward movement of the inner cover 200, the sleeve closing tool can be suitable for assembling inner sleeves and thrust pieces 100 with different diameters, and the application range of the sleeve closing tool can be expanded.

As shown in fig. 1 to 3, when assembling, an operator fits the inner cover 200 over the guide protrusion 320, and since the first diameter is not smaller than the diameter of the inner cover 200, the inner cover 200 is located at a position in the middle of the guide protrusion 320. Then, the thrust plate 100 is sleeved on the inner cover 200, and the end surface of the thrust plate 100 facing the lower mold 300 abuts against the fixing protrusion 220. Finally, the operator holds the upper mold 400 and places it above the thrust plate 100, and the operator pushes the upper mold 400 downward, so that the thrust plate 100 can be pushed to move toward the lower mold 300 while the thrust plate 100 applies a downward driving force to the inner cover 200. At this time, the inner cover 200 is restricted by the inclined outer diameter of the guide protrusion 320, the resistance of the downward movement of the inner cover 200 is large, the inner diameter of the thrust plate 100 gradually passes through the guide protrusion 320 and continues to move downward, and finally, the thrust plate 100 abuts against the support ring 230, thereby completing the fitting assembly of the thrust plate 100 and the inner cover 200.

Optionally, as shown in fig. 3, an included angle between a side edge of the guide protrusion 320 and a central axis of the guide protrusion 320 is 70 ° to 89 °, that is, the first straight diameter gradually transitions to the second straight diameter, the guide protrusion 320 is improved to provide a guide effect for the downward movement of the inner cover 200, and the guide protrusion 320 is prevented from having too large resistance to the downward movement of the inner cover 200, which is beneficial to improving the fitting and assembling effect of the thrust plate 100 and the inner cover 200.

With reference to fig. 3, the upper die 400 includes the abutting piece 410, the end surface of the abutting piece 410 facing the lower die 300 is an annular abutting surface 411, and a part of the abutting surface 411 can abut against a part or all of the upper end surface of the thrust piece 100, and the abutting surface 411 makes surface-to-surface contact with the upper end surface of the thrust piece 100, so that the stability of the upper die 400 pushing the thrust piece 100 to move downwards is improved, and the abutting surface 411 can be applied to thrust pieces 100 with different diameters, which is beneficial to increasing the application range of the fitting tool.

Further, the abutting member 410 is provided with an avoiding groove 412, and when the upper mold 400 drives the thrust plate 100 to move downward, the guide protrusion 320 can go deep into the avoiding groove 412 to avoid interference with other structures of the upper mold 400.

With reference to fig. 3, in addition, the upper mold 400 further includes a first limiting ring 420 disposed on the abutting surface 411, the first limiting ring 420 protrudes from the abutting surface 411 toward the lower mold 300, and an inner diameter of the first limiting ring 420 is greater than an outer diameter of the thrust piece 100, the first limiting ring 420 can restrict a deviation range of the thrust piece 100 relative to a central axis of the guide protrusion 320, so as to avoid that the thrust piece 100 cannot fit the inner cover 200 due to an excessively large eccentric distance relative to the central axis. The first limit ring 420 is beneficial to improving the accuracy of the matching of the thrust piece 100 and the inner cover 200.

Further, an avoiding hole 430 is formed at one end of the upper die 400 away from the lower die 300, and the inner diameter of the avoiding hole 430 is greater than the outer diameter of the guide protrusion 320, so that interference between the guide protrusion 320 and the upper die 400 is avoided. That is, when the height of the guide protrusion 320 is greater than that of the upper die 400, and in the process of fitting the thrust plate 100 and the inner cover 200 together, the guide protrusion 320 can penetrate through the avoiding hole 430 and protrude out of the upper die 400, so that the guide protrusion 320 is prevented from being pushed against the end surface of the avoiding groove 412, the thrust plate 100 and the inner cover 200 are prevented from being not fitted in place, and the accuracy of the fitting tool is improved.

With continued reference to fig. 3, the upper die 400 further includes a hand piece 440 disposed on the abutment 410 to facilitate an operator to hold the upper die 400 and push the upper die 400 toward the lower die 300. Specifically, the number of the handpieces 440 is two, and the two handpieces 440 are oppositely disposed at two sides of the abutting piece 410, so that an operator can simultaneously exert force on the upper die 400 through the two handpieces 440, which is beneficial to improving the stability of the movement of the upper die 400 towards the lower die 300 and the balance of the two sides.

Meanwhile, the lower die 300 further comprises a second limiting ring 330, the second limiting ring 330 is arranged on the end surface of the base 310 facing the upper die 400, the inner diameter of the second limiting ring 330 is larger than the outer diameter of the abutting surface 411, the second limiting ring 330 can restrict the deviation range of the upper die 400 relative to the central shaft of the guide protrusion 320, the phenomenon that the upper die 400 and the thrust plate 100 cannot fit with the inner cover 200 due to too large eccentric distance relative to the central shaft is avoided, and the accuracy of fit of the thrust plate 100 and the inner cover 200 is improved.

In order to avoid interference between the second stop collar 330 and the hand piece 440, the height of the second stop collar 330 is smaller than the guide projection 320 so as not to contact the second stop collar 330 even when the hand piece 440 is moved to the lowest position.

It is noted that the basic principles and main features of the present invention and the advantages of the present invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration only, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents.

Claims

1. A fitting tool configured to be assembled on a first workpiece and a second workpiece in an annular shape, the fitting tool comprising:

the lower die (300) comprises a base (310) and a guide protrusion (320) arranged on the base (310), the diameter of the guide protrusion (320) is gradually reduced along the direction far away from the base (310), the diameters of two ends of the guide protrusion (320) are respectively a first diameter and a second diameter, the second diameter is smaller than the inner diameter of the second workpiece, and the first diameter is not smaller than the inner diameter of the second workpiece; and

and the upper die (400) is used for driving the first workpiece to be sleeved on the second workpiece when the first workpiece and the second workpiece are assembled.

2. The fitting tool according to claim 1, wherein an included angle between the side edge of the guide protrusion (320) and the central axis of the guide protrusion (320) is 70-89 degrees.

3. The fitting tool according to claim 1, wherein the upper die (400) comprises:

and an abutting piece (410), wherein the end surface of the abutting piece (410) facing the lower die (300) is an annular abutting surface (411), and part of the abutting surface (411) can abut against part or all of the upper end surface of the first workpiece.

4. The fitting tool according to claim 3, wherein the abutting piece (410) is provided with an avoiding groove (412).

5. The fitting tool according to claim 3, wherein the upper die (400) further comprises:

and a first limiting ring (420) which is arranged on the abutting surface (411) and protrudes towards the direction of the lower die (300), wherein the inner diameter of the first limiting ring (420) is larger than the outer diameter of the first workpiece.

6. The fitting tool according to claim 1, wherein an avoiding hole (430) is formed in one end, away from the lower die (300), of the upper die (400), and the inner diameter of the avoiding hole (430) is larger than the outer diameter of the guide protrusion (320).

7. The fitting tool according to claim 3, wherein the upper die (400) further comprises:

a handpiece (440) disposed on the abutment (410).

8. The fitting tool according to claim 7, characterized in that the number of the handpieces (440) is two, and the two handpieces (440) are oppositely arranged on two sides of the abutting piece (410).

9. The fitting tool according to claim 3, wherein the lower die (300) further comprises:

the second limiting ring (330) is arranged on the end face, facing the upper die (400), of the base (310), and the inner diameter of the second limiting ring (330) is larger than the outer diameter of the abutting face (411).

10. The fitting tool according to claim 9, wherein the height of the second limit ring (330) is smaller than that of the guide protrusion (320).