Press-fitting floating centering mechanism

Abstract

The utility model discloses a press-fitting floating centering mechanism which comprises a press-fitting base, a deviation adjusting mechanism and a pressing head. The deviation adjusting mechanism comprises a deviation base in elastic floating connection with the press-fitting base, the deviation base is provided with an adjusting cavity and a matched adjusting pin rod arranged in the adjusting cavity, and the adjusting cavity comprises a conical surface wall. The matching adjusting pin rod comprises a conical head matched with the conical surface wall and a connecting rod which is arranged on the conical head, penetrates through the adjusting cavity and is connected with the crimping base. A gap is reserved between the top wall of the conical head and the top wall of the adjusting cavity, and a reset elastic element is arranged between the top wall of the conical head and the top wall of the adjusting cavity. According to the utility model, the concentricity correction matching requirement of crimping can be realized, and a certain deviation adjustment amount is provided, so that the crimping quality is improved. The mode of combining conical surface matching and floating stroke is adopted, the deviation adjusting structure is ingenious, and construction and implementation are easy. And the carrying requirement of the annular press-fitting structural part is met, the auxiliary material carrying and press-fitting guiding and returning requirements are met, operation is convenient, and running is smooth and efficient.

Description

Technical Field

[0001] The utility model relates to a press-fit floating centering mechanism, belonging to the technical field of centering press-fitting. Background Art

[0002] During the pressing operation, a pressure head is used, that is, pressure is applied to the pressure head to crimp the opponent into place. In order to meet the crimping stroke protection, a floating displacement design is usually used to provide a certain crimping buffer, thereby ensuring the crimping quality and reliability of the product.

[0003] At present, there is a press-fitting of oil seals. Oil seals are generally annular structures, which need to be crimped and pushed by a pressure head equipped with a storage tank. However, the mating end of the oil seal may have its own tolerance or the tolerance of the feeding material, which leads to the problem of deviation between its mounting displacement and the linear displacement of the pressure head. When deviation occurs, the crimping quality is difficult to guarantee. Utility Model Content

[0004] The utility model aims to solve the deficiencies of the prior art and proposes a press-fit floating centering mechanism to solve the problem that the relative concentricity deviation of the traditional floating press-fit mechanism cannot meet the centering fit and lead to press-fit defects.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A press-fit floating centering mechanism, comprising a press-fit base, a deflection adjustment mechanism arranged on the press-fit base, and a pressure head arranged on the deflection adjustment mechanism;

[0007] The deflection adjustment mechanism includes a deflection base elastically floatingly connected to the press-fitting base, the deflection base has an adjustment chamber facing the press-fitting base, and a matching adjustment pin arranged in the adjustment chamber, the adjustment chamber includes a conical wall with a wide mouth end facing the pressure head, the matching adjustment pin includes a conical head matching the conical wall, and a connecting rod arranged on the conical head and passing through the adjustment chamber and connected to the crimping base, a gap is left between the top wall of the conical head and the top wall of the adjustment chamber, and a reset elastic element is provided between the top wall of the conical head and the top wall of the adjustment chamber.

[0008] Preferably, a floating spring located at the outer periphery of the connecting rod is provided between the deflection base and the press-fitting base.

[0009] Preferably, the deflection base comprises a base body and an assembly cover detachably arranged on the base body, and the pressure head is arranged on the assembly cover.

[0010] Preferably, the pressure head includes a positioning shaft with a pressing ring rib arranged on the assembly cover, a floating loading ring sleeve sleeved on the positioning shaft and located between the pressing ring rib and the assembly cover, and a connecting spring is provided between the floating loading ring sleeve and the assembly cover.

[0011] Preferably, a positioning annular groove is provided on the pressing ring rib.

[0012] Preferably, the floating loading ring sleeve is provided with a floating extension end extending toward the assembly cover, the assembly cover is provided with a cover extension end arranged opposite to the floating extension end, and the two ends of the connecting spring are respectively sleeved and fixed on the floating extension end and the cover extension end;

[0013] When the connecting spring is in an extended state, a separation gap is left between the cover extension end and the floating extension end.

[0014] Preferably, the press-fit base includes a support pile for carrying the deflection adjustment mechanism and a change-over base detachably connected to the support pile.

[0015] The beneficial effects of the utility model are mainly reflected in:

[0016] 1. It can realize the concentricity correction and matching requirements of crimping, and provide a certain amount of deviation adjustment, thereby improving the crimping quality.

[0017] 2. The cone fit is combined with the floating stroke, and the deflection adjustment structure is ingenious and easy to construct and implement.

[0018] 3. It meets the requirements of carrying annular press-fitted structural parts, has the requirements of auxiliary loading and press-fitting guide retraction, and is easy to operate and runs smoothly and efficiently. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0020] Figure 1 The utility model is a structural schematic diagram of a press-fit floating centering mechanism.

[0021] Figure 2 The utility model is a schematic diagram of the exploded structure of a press-fit floating centering mechanism.

[0022] Figure 3 The utility model is a cross-sectional structural schematic diagram of a press-fit floating centering mechanism.

[0023] Figure 4 The utility model is a cross-sectional structural schematic diagram of a press-fit floating centering mechanism in a press-fit state. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the relevant utility model, rather than to limit the utility model. It is also necessary to explain that, for ease of description, only the parts related to the relevant utility model are shown in the accompanying drawings. It should be noted that, in the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0026] The utility model provides a press-fit floating centering mechanism, such as Figures 1 to 4 As shown, it includes a press-fitting base 1 , a deflection adjustment mechanism 2 arranged on the press-fitting base 1 , and a pressing head 3 arranged on the deflection adjustment mechanism 2 .

[0027] The deflection adjustment mechanism 2 includes a deflection base 21 elastically floatingly connected to the press-fitting base 1, the deflection base has an adjustment chamber 22 facing the press-fitting base, and a matching adjustment pin 23 arranged in the adjustment chamber. The adjustment chamber 22 includes a conical wall 220 with a wide mouth end facing the pressure head, and the matching adjustment pin 23 includes a cone head 231 matching the conical wall, and a connecting rod 232 arranged on the cone head 231 and passing through the adjustment chamber and connected to the crimping base. A gap is left between the top wall of the cone head and the top wall of the adjustment chamber, and a reset elastic element 24 is provided between the top wall of the cone head and the top wall of the adjustment chamber.

[0028] Specific implementation process and principle description:

[0029] When performing the press-fitting operation, the crimping drive source drives the press-fitting base 1 for crimping, and the pressing head 3 is subjected to the force for press-fitting operation. During the crimping process of the pressing head 3, the deflection base 21 and the press-fitting base 1 will produce relative elastic floating displacement, thereby producing a relative displacement between the deflection base 21 and the cone head 231. At this time, a separation gap is generated between the cone wall 220 and the cone head 231, thereby realizing the adaptive deflection adjustment function of the deflection base 21 on the cone head 231, which plays a corrective and centering role.

[0030] Reference Figure 4As shown, in the crimped state, a relative movable gap 100 is generated between the conical wall 220 and the conical head 231, and the deflection adjustment of the pressure can be achieved under this movable gap, thereby adapting to and adjusting the deflection angle difference.

[0031] In a specific embodiment, referring to Figures 1 to 4 As shown, a floating spring 4 located on the outer periphery of the connecting rod is provided between the deflection base and the press-fit base.

[0032] The floating spring 4 can meet the requirements of sleeve coaxial guidance and floating matching connection.

[0033] Of course, the floating spring 4 is only a specific embodiment, and it can also be implemented by using a plurality of spring bodies distributed around the periphery of the connecting rod. All structures that only need to satisfy the elastic floating connection are within the protection scope of this case.

[0034] In a specific embodiment, Figure 3 and Figure 4 As shown, the deflection base 2 comprises a base body 25 and an assembly cover 26 detachably arranged on the base body, and the pressure head is arranged on the assembly cover.

[0035] The design of the assembly cover 26 makes it easy to adjust the assembly molding of the chamber 22 and to coordinate with the mounting assembly requirements of the adjustment pin 23, so that the assembly is convenient.

[0036] In a specific embodiment, Figures 1 to 4 As shown, the pressure head 3 includes a positioning shaft 31 with a pressing ring rib 311 arranged on the assembly cover, a floating loading ring sleeve 32 sleeved on the positioning shaft and located between the pressing ring rib and the assembly cover, and a connecting spring 5 is provided between the floating loading ring sleeve and the assembly cover.

[0037] Specifically, under normal circumstances, the pressure head 3 is used for direct crimping operations. When crimping operations such as sealing rings and oil seals are performed, the floating loading ring sleeve 32 is used to achieve the pre-loading requirements of the materials. During the crimping process, the floating loading ring sleeve 32 plays the role of loading and guiding. As the crimping continues, the floating loading ring sleeve will be forced to retreat, thus meeting the crimping assembly requirements. When the crimping is completed, it realizes the reset operation.

[0038] In a specific embodiment, a positioning annular groove 312 is provided on the pressing ring rib 311 .

[0039] The positioning annular groove 312 can meet the requirements of matching with the floating loading ring 32 for loading, and at the same time, after the floating loading ring 32 is withdrawn, it itself can meet certain guiding matching requirements.

[0040] In a specific embodiment, the floating loading ring sleeve 31 is provided with a floating extension end extending toward the assembly cover, the assembly cover is provided with a cover extension end arranged opposite to the floating extension end, and the two ends of the connecting spring are respectively sleeved and fixed on the floating extension end and the cover extension end; Figure 3 As shown, when the connecting spring is in the extended state, a separation gap is left between the cover extension end and the floating extension end.

[0041] That is, the requirements for carrying and guiding the connecting spring are met, and the separation gap meets the requirements for the compressed push-back stroke of the floating loading ring sleeve 32. When the separation gap is eliminated, the abutment crimping operation is achieved.

[0042] In a specific embodiment, the press-fit base 1 includes a support pile 11 for carrying the deflection adjustment mechanism and a change-over base 12 detachably connected to the support pile.

[0043] The detachable cooperation between the support pile 11 and the mold changing base 12 can meet the demand for efficient mold changing.

[0044] From the above description, it can be found that the utility model is a press-fit floating centering mechanism, which can realize the concentricity correction and matching requirements of the press-fit, and provides a certain amount of bias adjustment, thereby improving the quality of the press-fit. The method of combining the conical surface matching with the floating stroke is adopted, and its bias adjustment structure is ingenious and easy to construct and implement. It meets the carrying requirements of the annular press-fit structural parts, has the requirements of auxiliary material loading and press-fit guide retraction, and is easy to operate, smooth and efficient.

[0045] The term "comprise" or any other similar term is intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus / device that includes a list of elements includes not only those elements but also other elements not expressly listed, or also includes elements inherent to such process, method, article, or apparatus / device.

[0046] So far, the technical solution of the present invention has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A press-fit floating centering mechanism, characterized in that: It comprises a press-fitting base, a deflection adjustment mechanism arranged on the press-fitting base, and a pressing head arranged on the deflection adjustment mechanism; The deflection adjustment mechanism includes a deflection base elastically floatingly connected to the press-fitting base, the deflection base has an adjustment chamber facing the press-fitting base, and a matching adjustment pin arranged in the adjustment chamber, the adjustment chamber includes a conical wall with a wide mouth end facing the pressure head, the matching adjustment pin includes a conical head matching the conical wall, and a connecting rod arranged on the conical head and passing through the adjustment chamber and connected to the press-fitting base, a gap is left between the top wall of the conical head and the top wall of the adjustment chamber, and a reset elastic element is provided between the top wall of the conical head and the top wall of the adjustment chamber.

2. A press-fit floating centering mechanism according to claim 1, characterized in that: A floating spring located at the outer periphery of the connecting rod is provided between the deflection base and the press-fitting base.

3. A press-fit floating centering mechanism according to claim 1, characterized in that: The deflection base comprises a base body and an assembly cover detachably arranged on the base body, and the pressure head is arranged on the assembly cover.

4. A press-fit floating centering mechanism according to claim 3, characterized in that: The pressure head includes a positioning shaft with a pressing ring rib arranged on the assembly cover, a floating material loading ring sleeve sleeved on the positioning shaft and located between the pressing ring rib and the assembly cover, and a connecting spring is provided between the floating material loading ring sleeve and the assembly cover.

5. A press-fit floating centering mechanism according to claim 4, characterized in that: A positioning annular groove is provided on the pressing ring rib.

6. A press-fit floating centering mechanism according to claim 4, characterized in that: The floating material loading ring sleeve is provided with a floating extension end extending toward the assembly cover, the assembly cover is provided with a cover extension end arranged opposite to the floating extension end, and the two ends of the connecting spring are respectively sleeved and fixed on the floating extension end and the cover extension end; When the connecting spring is in an extended state, a separation gap is left between the cover extension end and the floating extension end.

7. A press-fit floating centering mechanism according to any one of claims 1 to 6, characterized in that: The press-fit base includes a support pile for carrying the deflection adjustment mechanism and a change-over base detachably connected to the support pile.

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