Mounting jig

Abstract

The utility model relates to an installation jig which comprises a pressing head, a limiting piece and a magnetic piece. The magnetic piece is arranged on the pressing head and is used for magnetically attracting an oil guide nozzle placed on the pressing head; the limiting piece is arranged on the pressing head and used for being matched with a limiting part on the supporting object so that when the pressing head gets close to the supporting object in the axial direction of the assembling hole, the position of the pressing head in the assembling hole in the radial direction of the assembling hole can be limited. Through cooperation of the limiting piece and the limiting part, the pressing head can be prevented from shaking in the radial direction of the assembly hole, then the oil guide nozzle adsorbed to the pressing head is prevented from shaking in the radial direction of the assembly hole, the oil guide nozzle can be aligned with the assembly hole all the time in the process that the oil guide nozzle moves close to a supporting object along with the pressing head, and therefore the oil guide nozzle can be conveniently installed in the assembly hole. In addition, the oil guide nozzle can be evenly stressed in the process of being installed in the assembly hole, and therefore the oil guide nozzle is prevented from being damaged due to the problems of deformation and the like.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of automobile production, especially relates to a mounting fixture. BACKGROUND

[0002] The oil guide nozzle is mainly used to guide lubricating oil into the oil guide hole on the shaft (such as the input shaft and the output shaft) of the transmission, so that the needle bearing and the synchronizing ring of each gear position can be fully lubricated, and the abnormal phenomenon of burning and sticking of the transmission in the oil-free state can be prevented.

[0003] The oil guide nozzle comprises an end cover and an oil pipe arranged on the end cover. After assembly, the end cover is installed in the assembly hole on the supporting object such as the housing of the transmission and is in interference fit with the assembly hole, and the oil pipe is inserted into the assembly hole on the shaft body of the transmission.

[0004] The oil guide nozzle is usually a thin-walled stamping part, and when it is installed in the assembly hole, it is prone to deformation and damage due to misalignment. INNOVATION CONTENT

[0005] The utility model solves the problem in the prior art that the oil guide nozzle is prone to deformation and damage due to misalignment when it is installed in the assembly hole, and provides a mounting fixture.

[0006] To solve the above problems, on the one hand, the utility model provides a mounting fixture for installing the end cover of the oil guide nozzle into the assembly hole of the supporting object, which comprises a pressure head, a limiting part and a magnetic part; the magnetic part is arranged on the pressure head and is used for magnetically attracting the oil guide nozzle placed on the pressure head; the limiting part is arranged on the pressure head and is used for cooperating with the limiting part on the supporting object, so that when the pressure head approaches the supporting object along the axial direction of the assembly hole, the position of the pressure head in the radial direction of the assembly hole is limited.

[0007] Optionally, the pressure head comprises a first shaft; the first shaft can be inserted into the assembly hole along the axial direction of the first shaft to install the end cover into the assembly hole; the first shaft can cooperate with the assembly hole to limit the position of the first shaft in the radial direction of the assembly hole; and / or the first shaft has a first resisting structure, and when the first shaft moves in the assembly hole along the axial direction of the first shaft, the first resisting structure can abut against the second resisting structure on the supporting object to limit the depth of the pressure head inserted into the assembly hole.

[0008] Optionally, the cooperation accuracy of the limiting part and the limiting part is lower than the cooperation accuracy of the first shaft and the assembly hole; when the pressure head approaches the supporting object along the axial direction of the assembly hole, the first shaft cooperates with the assembly hole after the limiting part and the limiting part cooperate.

[0009] Optionally, the pressure head further comprises a second shaft, the second shaft is arranged on an end surface of the first shaft in the axial direction of the first shaft; the end surface of the second shaft away from the first shaft is used to place the end cover in the axial direction of the first shaft; the first shaft protrudes out of the second shaft in the radial direction of the first shaft to form the first resisting structure, the first resisting structure can abut against the second resisting structure on the supporting object when the first shaft is inserted into the assembly hole along the direction from the first shaft to the second shaft.

[0010] Optionally, the first shaft and the second shaft are coaxial.

[0011] Optionally, the second shaft is provided with a first limiting structure, the first limiting structure is used to cooperate with a second limiting structure on the oil guide nozzle to limit the position of the oil guide nozzle relative to the second shaft in the circumferential direction of the first shaft.

[0012] Optionally, the first limiting structure is a limiting groove arranged on the side surface of the second shaft, the limiting groove penetrates through the end surface of the second shaft away from the first shaft in the axial direction of the first shaft.

[0013] Optionally, the second shaft is provided with a first positioning structure, the first positioning structure is used to cooperate with a second positioning structure of the oil guide nozzle to limit the position of the oil guide nozzle relative to the second shaft in the radial direction of the first shaft.

[0014] Optionally, the first positioning structure is a third shaft arranged on the end surface of the second shaft away from the first shaft in the axial direction of the first shaft; the second shaft protrudes out of the third shaft in the radial direction of the first shaft.

[0015] Optionally, the second shaft and the third shaft are coaxial.

[0016] Optionally, the pressure head is provided with a containing hole, the containing hole is used to contain the oil pipe of the oil guide nozzle.

[0017] Optionally, the limiting piece is detachably connected with the pressure head; and / or, the magnetic piece is detachably connected with the pressure head.

[0018] Optionally, the limiting piece comprises a mounting plate and a limiting column; the mounting plate is arranged on the pressure head, and the limiting column is arranged on the mounting plate; the limiting column is used to cooperate with the limiting part.

[0019] Optionally, the number of the limiting columns is plural, and each limiting column is used to cooperate with the corresponding limiting part.

[0020] Optionally, the pressing head is provided with a first positioning structure, the first positioning structure is used for cooperating with a second positioning structure of the oil guide nozzle, so as to limit the position of the oil guide nozzle relative to the pressing head in the radial direction of the assembly hole when the pressing head approaches the supporting object in the axial direction of the assembly hole; and / or the pressing head is provided with a first limiting structure, the first limiting structure is used for cooperating with a second limiting structure of the oil guide nozzle, so as to limit the position of the end cover relative to the pressing head in the circumferential direction of the assembly hole, and the limiting member can also limit the position of the pressing head relative to the assembly hole in the circumferential direction of the assembly hole when the limiting member cooperates with the limiting part on the supporting object.

[0021] Optionally, the pressing head and / or the limiting member is provided with a first resisting structure, the first resisting structure is used for resisting a second resisting structure on the supporting object when the pressing head approaches the supporting object in the axial direction of the assembly hole, so as to limit the distance of the movement of the pressing head towards the supporting object.

[0022] In the mounting jig provided in the embodiment of the utility model, through the cooperation of the limiting member and the limiting part, the pressing head can be prevented from shaking in the radial direction of the assembly hole, and then the oil guide nozzle adsorbed on the pressing head can be prevented from shaking in the radial direction of the assembly hole, so that the oil guide nozzle can be always aligned with the assembly hole in the process of approaching the supporting object with the pressing head, thereby facilitating the installation of the oil guide nozzle into the assembly hole.

[0023] In addition, in the prior art, in the process of installing the oil guide nozzle into the assembly hole, the oil guide nozzle is subjected to uneven force due to misalignment of the oil guide nozzle and the assembly hole, and then the oil guide nozzle (mainly the end cover of the oil guide nozzle) is deformed and damaged. Moreover, in the present application, the oil guide nozzle can be subjected to uniform force in the process of being installed into the assembly hole, and then the oil guide nozzle (mainly the end cover of the oil guide nozzle) can be prevented from being damaged due to deformation and other problems.

[0024] In addition, in the present application, the oil guide nozzle is stably placed on the pressing head by the magnetic attraction of the magnetic member, which not only facilitates the fixation of the oil guide nozzle, but also avoids the problem of damage of the oil guide nozzle caused by the fixation of the oil guide nozzle. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is a schematic diagram of cooperation of the oil guide nozzle and the supporting object provided by an embodiment of the utility model Figure 1 ;

[0026] Figure 2 is a schematic diagram of cooperation of the oil guide nozzle and the supporting object provided by an embodiment of the utility model Figure 2 ;

[0027] Figure 3 is a schematic diagram of the structure of the mounting jig provided by an embodiment of the utility modelFigure 1 ;

[0028] Figure 4 is the structure of the mounting jig provided by an embodiment of the utility model Figure 2 ;

[0029] Figure 5 is the structure of the mounting jig provided by an embodiment of the utility model Figure 1 ;

[0030] Figure 6 is the structure of the mounting jig provided by an embodiment of the utility model Figure 2 ;

[0031] Figure 7 is the structure of the mounting jig provided by an embodiment of the utility model Figure 3 ;

[0032] Figure 8 is the structure of the mounting jig provided by an embodiment of the utility model

[0033] The reference signs in the specification are as follows:

[0034] 10, mounting jig;

[0035] 1, pressure head; 11, first positioning structure; 12, first limiting structure; 13, first resisting structure; 14, first shaft; 141, exhaust groove; 15, second shaft; 16, third shaft; 161, first connecting hole; 17, accommodating hole; 171, first section hole; 172, second section hole; 18, holding part;

[0036] 2, limiting piece; 21, mounting plate; 211, mounting hole; 22, limiting column;

[0037] 3, magnetic piece;

[0038] 4, bolt;

[0039] 5, screw;

[0040] 20, oil guide nozzle; 201, end cover; 202, second positioning structure; 203, second limiting structure; 204, bottom plate; 205, side plate; 206, oil pipe;

[0041] 30, supporting object; 301, assembly hole; 302, limiting part; 303, second resisting structure. DETAILED DESCRIPTION

[0042] To make the technical problems solved, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0043] like Figures 1 to 8 As shown, in one embodiment, the mounting fixture 10 is used to install the end cap 201 of the oil guide nozzle 20 into the assembly hole 301 of the support object 30. The mounting fixture 10 includes a pressure head 1, a limiting member 2, and a magnetic member 3. The pressure head 1 is used to place the oil guide nozzle 20 and to press the end cap 201 into the assembly hole 301. The magnetic member 3 is disposed on the pressure head 1 and is used to magnetically attract the oil guide nozzle 20 placed on the pressure head 1. The limiting member 2 is disposed on the pressure head 1 and is used to cooperate with the limiting part 302 on the support object 30 so that when the pressure head 1 approaches the support object 30 along the axial direction of the assembly hole 301, it limits the position of the pressure head 1 in the radial direction relative to the assembly hole 301, so that the pressure head 1 can install the end cap 201 into the assembly hole 301.

[0044] By cooperating with the limiting member 2 and the limiting part 302, the pressure head 1 can be prevented from wobbling in the radial direction of the mounting hole 301, thereby preventing the oil guide nozzle 20 adsorbed on the pressure head 1 from wobbling in the radial direction of the mounting hole 301. This ensures that the oil guide nozzle 20 can always be aligned with the mounting hole 301 as the pressure head 1 moves closer to the support object 30, thus facilitating the installation of the oil guide nozzle 20 into the mounting hole 301.

[0045] Furthermore, in the prior art, during the installation of the oil guide nozzle 20 into the mounting hole 301, uneven force is applied to the oil guide nozzle 20 due to misalignment between the oil guide nozzle 20 and the mounting hole 301, which leads to deformation and damage of the oil guide nozzle 20 (mainly the end cap 201 of the oil guide nozzle 20). This application ensures that the oil guide nozzle 20 receives uniform force during installation into the mounting hole 301, thereby preventing damage to the oil guide nozzle 20 (mainly the end cap 201 of the oil guide nozzle 20) due to deformation and other problems.

[0046] Furthermore, in this application, the oil guide nozzle 20 is stably placed on the pressure head 1 by magnetic attraction of the magnetic component 3. This not only makes it convenient and quick to fix the oil guide nozzle 20, but also avoids the problem of damage to the oil guide nozzle 20 caused by fixing it.

[0047] After assembly, the oil guide nozzle 20 is interference-fitted with the assembly hole 301. After the oil guide nozzle 20 and the assembly hole 301 are assembled, when the pressure head 1 is moved outward, the force applied to the oil guide nozzle 20 through the side wall of the assembly hole 301 can disengage the oil guide nozzle 20 from the pressure head 1.

[0048] It should be noted that the oil guide nozzle 20 and the support object 30 are both existing designs.

[0049] As shown in Figure 3 and Figure 4 In an embodiment, the pressure head 1 is provided with a first positioning structure 11, which is used to cooperate with a second positioning structure 202 of the oil guide nozzle 20, so as to limit the position of the oil guide nozzle 20 relative to the pressure head 1 in the radial direction of the assembly hole 301 when the pressure head 1 approaches the support object 30 along the axial direction of the assembly hole 301; and / or, the pressure head 1 is provided with a first limiting structure 12, which is used to cooperate with a second limiting structure 203 of the oil guide nozzle 20, so as to limit the position of the end cover 201 relative to the pressure head 1 in the circumferential direction of the assembly hole 301, and when the limiting member 2 cooperates with the limiting part 302 on the support object 30, the position of the pressure head 1 relative to the assembly hole 301 in the circumferential direction of the assembly hole 301 can also be limited.

[0050] Through the cooperation of the first positioning structure 11 and the first limiting structure 12, the oil guide nozzle 20 can be more conveniently installed at a suitable position of the pressure head 1, so as to improve the assembly efficiency.

[0051] In addition, through the cooperation of the first limiting structure 12 and the second limiting structure 203, and the cooperation of the limiting member 2 and the limiting part 302, the position of the oil guide nozzle 20 relative to the assembly hole 301 in the circumferential direction of the assembly hole 301 can also be limited, so that the oil guide nozzle 20 and the assembly hole 301 can also be aligned in the circumferential direction of the assembly hole 301, so as to ensure that the oil guide nozzle 20 can be installed at a suitable position.

[0052] In an embodiment, one end of the pressure head 1 where the oil guide nozzle 20 is placed can extend into the assembly hole 301, so as to drive the end cover 201 into the assembly hole 301. In this way, the end cover 201 can be installed to a deeper position of the assembly hole 301.

[0053] As shown in Figure 3 and Figure 4 The pressure head 1 is provided with a first resisting structure 13, which is used to resist a second resisting structure 303 on the support object 30 when the pressure head 1 approaches the support object 30 along the axial direction of the assembly hole 301, so as to limit the distance of movement of the pressure head 1 towards the support object 30.

[0054] As shown in Figure 3 and Figure 4 In an embodiment, the pressure head 1 comprises a first shaft 14; the first shaft 14 can be placed into the assembly hole 301 along the axial direction of itself, so as to install the end cover 201 into the assembly hole 301; that is, when the pressure head 1 approaches the support object 30 along the axial direction of the assembly hole 301, it actually approaches the support object 30 along the axial direction of the first shaft 14. Usually, during the assembly process, the first shaft 14 is coaxial with the assembly hole 301.

[0055] In addition, when the pressing head 1 is placed into the assembly hole 301, the first shaft 14 can also be placed into the assembly hole 301. When the pressing head 1 is placed into the assembly hole 301 along the axial direction of the first shaft 14, the first shaft 14 can be matched with the assembly hole 301 to limit the position of the first shaft 14 in the radial direction of the assembly hole 301, and further limit the position of the pressing head 1 in the radial direction of the assembly hole 301. That is, in addition to the cooperation between the limiting part 2 and the limiting portion 302 to limit the position of the pressing head 1 in the radial direction of the assembly hole 301, the cooperation between the first shaft 14 and the assembly hole 301 can also be used to limit the position of the pressing head 1 in the radial direction of the assembly hole 301, so as to improve the limiting effect.

[0056] In an embodiment, the cooperation precision between the limiting part 2 and the limiting portion 302 is lower than the cooperation precision between the first shaft 14 and the assembly hole 301. When the pressing head 1 approaches the supporting object 30 along the axial direction of the assembly hole 301, the first shaft 14 can be matched with the assembly hole 301 after the cooperation between the limiting part 2 and the limiting portion 302.

[0057] During operation, the cooperation between the limiting part 2 and the limiting portion 302 is used to realize the coarse positioning of the pressing head 1, so as to facilitate the oil guide nozzle 20 to enter the assembly hole 301 along with the pressing head 1. Then, the cooperation between the first shaft 14 and the assembly hole 301 is used to realize the fine positioning of the pressing head 1, so as to facilitate the oil guide nozzle 20 to be more accurately aligned with the assembly hole 301.

[0058] In an embodiment, the cooperation between the first shaft 14 and the assembly hole 301 can be interference fit, transition fit or clearance fit. When the two are interference fit, the interference amount is small, so that the first shaft 14 can move in the assembly hole 301 along the axial direction of the assembly hole 301. When the two are clearance fit, the clearance amount is small, so as to improve the positioning effect of the first shaft 14. The specific tolerance size when the two are matched can be set according to actual needs, which is not limited in the present application.

[0059] In addition, the first shaft 14 has the first resisting structure 13 described above. When the first shaft 14 moves in the assembly hole 301 along the axial direction of the first shaft 14, the first resisting structure 13 can abut against the second resisting structure 303 on the supporting object 30, so as to limit the depth of the pressing head 1 extending into the assembly hole 301. That is, in addition to being used to limit the position of the first shaft 14 in the radial direction of the assembly hole 301, the first shaft 14 can also be used to limit the depth of the pressing head 1 extending into the assembly hole 301. It should be understood that in other embodiments, the first shaft 14 can also be used only to limit the depth of the pressing head 1 extending into the assembly hole 301.

[0060] In this way, the depth of the pressing head 1 extending into the assembly hole 301 can be avoided to be too large, so as to avoid the oil guide nozzle 20 being damaged by the pressing head 1.

[0061] The first stop structure 13 abuts against the second stop structure 303, in fact, the end face of the first shaft 14 close to the second shaft 15 abuts against the second stop structure 303, and the second stop structure 303 is located in the assembly hole 301. For example, the assembly hole 301 is a stepped hole, and along the direction gradually extending into the assembly hole 301, the assembly hole 301 has a first hole and a second hole, the diameter of the first hole is larger than that of the second hole, so as to form a stepped surface between the two, which is the second stop structure 303. During assembly, the end face of the first shaft 14 in the axial direction can abut against the stepped surface, thereby avoiding the further deepening of the punch 1 into the assembly hole 301.

[0062] As shown in Figure 3 and Figure 5 , in an embodiment, the side surface of the first shaft 14 is provided with an exhaust groove 141, which penetrates the two end faces of the first shaft 14 in the axial direction of the first shaft 14. After the first shaft 14 is placed into the assembly hole 301, the first shaft 14 can move smoothly along the axial direction of the assembly hole 301.

[0063] As shown in Figure 3 and Figure 4 , in an embodiment, the punch 1 further comprises a second shaft 15, which is arranged on one end face of the first shaft 14 in the axial direction of the first shaft 14, i.e. the first shaft 14 and the second shaft 15 are arranged in sequence along the axial direction of the first shaft 14; in the axial direction of the first shaft 14, the end face of the second shaft 15 away from the first shaft 14 is used to place the end cover 201. During assembly, the oil guide nozzle 20 can be pressed into the second hole of the assembly hole 301 by applying force to it through the second shaft 15. When the first shaft 14 can abut against the stepped surface of the assembly hole, in fact, the end face of the first shaft 14 close to the second shaft 15 abuts against the stepped surface.

[0064] In the radial direction of the first shaft 14, the first shaft 14 protrudes the second shaft 15 to form the first stop structure 13, which can abut against the second stop structure 303 when the first shaft 14 is placed into the assembly hole 301 along the direction from the first shaft 14 to the second shaft 15, so as to limit the depth of the punch 1 extending into the assembly hole 301.

[0065] In an embodiment, the first shaft 14 protrudes the second shaft 15 in the radial direction all around.

[0066] In an embodiment, the first shaft 14 and the second shaft 15 are coaxial. Among them, the first shaft 14 and the second shaft 15 can both be cylindrical, at this time, the diameter of the first shaft 14 is larger than that of the second shaft 15. Alternatively, either of the first shaft 14 and the second shaft 15 can also be a prism or other column structure.

[0067] As shown in Figure 3As shown in the drawings, in an embodiment, the second shaft 15 is provided with the first limiting structure 12 described above, and the first limiting structure 12 is used to cooperate with the second limiting structure 203 on the oil guide nozzle 20 to limit the position of the oil guide nozzle 20 in the circumferential direction of the first shaft 14 relative to the second shaft 15.

[0068] As shown in the drawings, in an embodiment, the first limiting structure 12 is a limiting groove provided on the side surface of the second shaft 15, and in the axial direction of the first shaft 14, the limiting groove penetrates to the end surface of the second shaft 15 away from the first shaft 14. Figure 3

[0069] At this time, the second limiting structure 203 is a limiting block on the oil guide nozzle 20, which can extend into the limiting groove to limit the position of the limiting block through the two side walls in the circumferential direction of the first shaft 14, thereby limiting the position of the oil guide nozzle 20.

[0070] As shown in the drawings, in an embodiment, the second shaft 15 is provided with the first limiting structure 12 described above, and the first limiting structure 12 is used to cooperate with the second limiting structure 203 on the oil guide nozzle 20 to limit the position of the oil guide nozzle 20 in the circumferential direction of the first shaft 14 relative to the second shaft 15. Figure 3

[0071] As shown in the drawings, in an embodiment, in the axial direction of the first shaft 14, the first limiting structure 11 is a third shaft 16 provided on the end surface of the second shaft 15 away from the first shaft 14; and in the radial direction of the first shaft 14, the second shaft 15 protrudes from the third shaft 16. At this time, the second limiting structure 202 is a cavity of the end cover 201, and during assembly, the third shaft 16 can extend into the cavity of the end cover 201 to limit the position of the end cover 201 in the radial direction of the first shaft 14 relative to the second shaft 15. Figure 3

[0072] In addition, during assembly, the side wall of the cavity is in contact with the end surface of the second shaft 15 away from the first shaft 14, so as to facilitate the second shaft 15 to exert pressure on the side wall of the cavity when extending into the assembly hole 301, thereby pressing the oil guide nozzle 20 into the assembly hole 301, specifically, pressing the end cover 201 of the oil guide nozzle 20 into the second hole. Wherein, the end cover 201 is in interference fit with the second hole, thereby realizing the interference fit between the oil guide nozzle 20 and the assembly hole 301. In addition, the first hole can be used to install a bearing during subsequent assembly.

[0073] ​​​In the actual product, the end cover 201 of the oil guide nozzle 20 comprises a bottom plate 204 and a side plate 205, the side plate 205 is in a ring structure, one end of the side plate 205 is connected to the bottom plate 204, and the two enclose a cavity of the end cover 201. Among them, in some scenarios, the cavity can be regarded as the inner ring space of the side plate 205, and the side wall of the cavity is the side plate 205. The oil pipe 206 is connected to the bottom plate 204 and located in the inner ring space of the side plate 205, and along the axial direction of the side plate 205, the oil pipe 206 extends out of the cavity from the side of the side plate 205 away from the bottom plate 204, and the outer diameter of the oil pipe 206 is smaller than the inner diameter of the side plate 205. In addition, the limiting block on the oil guide nozzle 20 described above can be provided on the end face of the side plate 205 away from the bottom plate 204.

[0074] In an embodiment, the second shaft 15 is protruded around the third shaft 16 in the radial direction of the first shaft 14.

[0075] In an embodiment, the first shaft 14 and the second shaft 15 are coaxial, and the third shaft 16 can be a cylindrical structure or a prism, etc.

[0076] As shown in the drawings, Figure 4 In an embodiment, the pressure head 1 is provided with a receiving hole 17 extending along the axial direction of the first shaft 14, and the receiving hole 17 is used to accommodate the oil pipe 206 of the oil guide nozzle 20.

[0077] Among them, the receiving hole 17 can be provided on the end face of the third shaft 16 away from the second shaft 15.

[0078] As shown in the drawings, Figure 4 Along the axial direction of the first shaft 14 and in the direction from the third shaft 16 to the first shaft 14, the receiving hole 17 comprises a first section hole 171 and a second section hole 172 which are sequentially communicated. Among them, the hole diameter of the first section hole 171 is larger than the hole diameter of the second section hole 172. In the actual product, the diameter of the oil pipe 206 of the oil guide nozzle 20 at the connection with the end cover 201 (i.e. the root of the oil pipe 206) is larger, so that the hole diameter of the first section hole 171 is set to be larger to accommodate the root of the oil pipe 206.

[0079] As shown in the drawings, Figure 4 In an embodiment, the pressure head 1 further has a holding part 18 connected to the first shaft 14, and the holding part 18 can receive external force (such as the force applied by the operator) to drive the pressure head 1 to approach the supported object 30.

[0080] Specifically, the holding part 18 can be provided on the end face of the first shaft 14 away from the second shaft 15. In addition, the holding part 18 is also in a column structure, and can be coaxially arranged with the first shaft 14.

[0081] In addition, the diameter of the holding part 18 can be smaller than the diameter of the first shaft 14.

[0082] In addition, the accommodating hole 17 described above can extend to the holding portion 18.

[0083] In an embodiment, the limiting member 2 is detachably connected with the pressing head 1. In actual scenarios, there is a need to install the oil guide nozzle 20 in the assembly hole 301 of different support objects 30, and the setting position and structure of the limiting portion 302 thereon can be different for different support objects 30. Therefore, the limiting member 2 and the pressing head 1 are set to be detachably connected, so that the limiting member 2 matched with the support object 30 can be selected and installed on the pressing head 1 according to different support objects 30, thereby improving the adaptability of the installation jig 10 to different installation scenarios.

[0084] As shown in Figure 3 and Figure 4 In an embodiment, the limiting member 2 includes an installation plate 21 and a limiting column 22; the installation plate 21 is arranged on the pressing head 1, and the limiting column 22 is arranged on the installation plate 21; the limiting column 22 is used to cooperate with the limiting portion 302.

[0085] Among them, the installation plate 21 is provided with a mounting hole 211, and the limiting column 22 is embedded in the mounting hole 211, wherein the limiting column 22 and the mounting hole 211 can be in interference fit. In addition, the limiting column 22 can be a pin or the like, which can be a cylindrical structure.

[0086] In an embodiment, the installation plate 21 is detachably connected with the pressing head 1, thereby realizing the detachable connection of the limiting member 2 and the pressing head 1. Among them, the installation plate 21 can be detachably connected on the first shaft 14.

[0087] Specifically, the installation plate 21 is provided with a through hole, the through hole penetrates the installation plate 21, and the holding portion 18 is arranged in the through hole, that is, the installation plate 21 is arranged on the holding portion 18, and the installation plate 21 abuts against the end surface of the first shaft 14 away from the second shaft 15. The installation plate 21 is provided with an avoiding hole, the avoiding hole penetrates the installation plate 21 along the axis of the first shaft 14, the end surface of the first shaft 14 away from the second shaft 15 is provided with a threaded hole, and the corresponding bolt 4 passes through the installation plate 21 from the avoiding hole and cooperates with the threaded hole, so as to lock the installation plate 21 on the first shaft 14, thereby realizing the detachable connection of the installation plate 21 and the first shaft 14.

[0088] After assembly, in the radial direction of the first shaft 14, the installation plate 21 protrudes from the first shaft 14, and the limiting column 22 is connected to the region of the installation plate 21 protruding from the first shaft 14, that is, in the radial direction of the first shaft 14, the limiting column 22 is located on the outer side of the first shaft 14.

[0089] In addition, the axis of the limiting column 22 and the axis of the first shaft 14 can be arranged in parallel.

[0090] It should be understood that the limiting part 302 on the supporting object 30 is a limiting hole. The limiting hole is a round hole, and the limiting member 2 and the limiting part 302 are in a hole-shaft fit relationship. Moreover, the two can be in a clearance fit, and the tolerance range of the fit between the two can be greater than the tolerance range of the fit between the first shaft 14 and the first hole.

[0091] In one embodiment, there are multiple limiting posts 22, and each limiting post 22 is used to cooperate with a limiting part 302. After each limiting post 22 cooperates with each limiting part 302, the position of the pressure head 1 relative to the assembly hole 301 in the circumferential direction can be limited.

[0092] In one embodiment, the magnetic element 3 is detachably connected to the pressure head 1 so as to facilitate maintenance in case the magnetic element 3 is damaged or loses its magnetism.

[0093] In one embodiment, the magnetic element 3 may be a permanent magnet.

[0094] like Figure 4 As shown, the magnetic component 3 can be mounted on the third shaft 16. Specifically, the end face of the third shaft 16 opposite to the first shaft 14 has a first connecting hole 161, and the bottom surface of the first connecting hole 161 has a threaded hole. The magnetic component 3 has a second connecting hole, which penetrates the magnetic component 3. During assembly, the magnetic component 3 is installed in the first connecting hole 161, and the screw 5 passes through the second connecting hole and engages with the threaded hole on the bottom surface of the first connecting hole 161, thereby locking the magnetic component 3 onto the pressure head 1.

[0095] In addition, after assembly, along the direction from the first shaft 14 to the third shaft 16, neither the screw nor the magnetic component 3 protrudes from the end face of the third shaft 16 away from the first shaft 14.

[0096] In addition, the first connecting hole 161 may extend to the second shaft 15 or to the first shaft 14.

[0097] It should be understood that the above-mentioned design can also be replaced in other ways: for example:

[0098] In other embodiments, the first abutting structure 13 may also be disposed on the limiting member 2. For example, the first abutting structure 13 may be a protrusion disposed on the mounting plate 21. In this case, the second abutting structure 303 may be located outside the mounting hole 301.

[0099] In other embodiments, the receiving hole 17 can also serve as the first positioning structure 11. In this case, the oil pipe 206 can serve as the second positioning structure 202. By appropriately setting the diameter of the receiving hole 17 to match the outer diameter of the oil pipe 206, the position of the oil guide nozzle 20 in the radial direction of the first shaft 14 can also be defined.

[0100] In other embodiments, the limiting post 22 can also be a prism, and the cross section of the limiting hole is a prism-shaped ridge structure, at this time, after one limiting post 22 cooperates with one limiting hole, the position of the pressure head 1 relative to the assembly hole 301 in the radial direction of the assembly hole 301 can be limited, and the position of the pressure head 1 relative to the assembly hole 301 in the circumferential direction of the assembly hole 301 can also be limited.

[0101] In other embodiments, the magnetic member 3 can also be an electromagnetic element, which can generate a magnetic field to adsorb the oil guide nozzle 20 after being energized.

[0102] In other embodiments, the first limiting structure 12 can also be a stopper or the like arranged on the side surface of the second shaft 15. Moreover, in other embodiments, the first limiting structure 12 can also be arranged at other positions, such as the end surface of the second shaft 15 away from the first shaft 14.

[0103] The technical features of the above-described embodiments can be combined in any manner. In order to make the description concise, all possible combinations of the technical features in the above-described embodiments are not described, however, as long as the combinations of the technical features do not exist contradictions, they should be considered as the scope of the present disclosure.

[0104] The above only describes the preferred embodiments of the present application, and is not intended to limit the present application, and any modification, equivalent replacement and improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. An installation jig for installing an end cap of an oil guide nozzle into an assembly hole of a support object, characterized by, The pressure head, the limiting member and the magnetic member are included. The magnetic member is arranged on the pressure head and used for magnetically attracting the oil guide nozzle arranged on the pressure head. The limiting member is arranged on the pressure head and used for cooperating with the limiting part on the supporting object, so as to limit the position of the pressure head in the radial direction of the assembly hole when the pressure head approaches the supporting object in the axial direction of the assembly hole.

2. The mounting jig according to claim 1, wherein The pressure head includes a first shaft, which can be arranged in the assembly hole in the axial direction of the first shaft to mount the end cover into the assembly hole. The first shaft can cooperate with the assembly hole to limit the position of the first shaft in the radial direction of the assembly hole, and / or the first shaft has a first resisting structure, which can abut against a second resisting structure on the supporting object when the first shaft moves in the assembly hole along the axial direction of the first shaft, so as to limit the depth of the pressure head inserted into the assembly hole.

3. The mounting jig according to claim 2, wherein The cooperation precision of the limiting member and the limiting part is lower than the cooperation precision of the first shaft and the assembly hole. The first shaft can cooperate with the assembly hole after the cooperation of the limiting member and the limiting part when the pressure head approaches the supporting object in the axial direction of the assembly hole.

4. The mounting jig according to claim 2, wherein The pressure head further includes a second shaft arranged on an end face of the first shaft in the axial direction of the first shaft. The end face of the second shaft away from the first shaft in the axial direction of the first shaft is used for arranging the end cover. The first shaft protrudes out of the second shaft in the radial direction of the first shaft to form the first resisting structure, which can abut against the second resisting structure on the supporting object when the first shaft is arranged into the assembly hole in the direction from the first shaft to the second shaft. The first shaft and the second shaft are coaxial.

5. The mounting jig according to claim 4, wherein The second shaft is provided with a first limiting structure, which is used for cooperating with a second limiting structure on the oil guide nozzle to limit the position of the oil guide nozzle relative to the second shaft in the circumferential direction of the first shaft. The first limiting structure is a limiting groove arranged on the side face of the second shaft, which penetrates through the end face of the second shaft away from the first shaft in the axial direction of the first shaft.

6. The mounting jig of claim 4, wherein The second shaft is provided with a first positioning structure, which is used for cooperating with a second positioning structure of the oil guide nozzle to limit the position of the oil guide nozzle relative to the second shaft in the radial direction of the first shaft.

7. The mounting jig according to claim 6, wherein The first positioning structure is a third shaft arranged on the end face of the second shaft away from the first shaft in the axial direction of the first shaft. The second shaft protrudes out of the third shaft in the radial direction of the first shaft. The second shaft and the third shaft are coaxial.

8. The mounting jig of claim 1, wherein The pressure head is provided with a containing hole, which is used for containing the oil pipe of the oil guide nozzle.

9. The mounting jig of claim 1, wherein The limiting member is detachably connected with the pressure head, and / or The magnetic member is detachably connected with the pressure head.

10. The mounting jig of claim 1, wherein The limiting member includes a mounting plate and a limiting column. The mounting plate is arranged on the pressure head, and the limiting column is arranged on the mounting plate. The limiting columns are used for cooperating with the limiting parts; the number of the limiting columns is plural, and each limiting column is used for cooperating with a corresponding limiting part.

11. The mounting jig of claim 1, wherein The pressing head is provided with a first positioning structure, the first positioning structure is used for cooperating with a second positioning structure of the oil guide nozzle, so as to define the position of the oil guide nozzle relative to the pressing head in the radial direction of the assembly hole when the pressing head approaches the supporting object in the axial direction of the assembly hole; and / or, The pressing head is provided with a first limiting structure, the first limiting structure is used for cooperating with a second limiting structure of the oil guide nozzle, so as to define the position of the end cover relative to the pressing head in the circumferential direction of the assembly hole, and when the limiting member cooperates with the limiting part on the supporting object, the position of the pressing head relative to the assembly hole in the circumferential direction of the assembly hole can also be defined.

12. The mounting jig of claim 1, wherein The pressing head and / or the limiting member is provided with a first resisting structure, the first resisting structure is used for resisting a second resisting structure on the supporting object when the pressing head approaches the supporting object in the axial direction of the assembly hole, so as to define the distance of the movement of the pressing head towards the supporting object.

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