Elastic retainer mounting device

Abstract

The present application relates to the technical field of automobile engineering, and particularly relates to an elastic check ring mounting device, which comprises a machine base, a clamping mechanism and a material withdrawing mechanism, a machine shell is arranged on the machine base, a first mounting base opposite to the machine shell and a first driving device for driving the first mounting base and the machine shell to move close to or away from each other are arranged on the base; the clamping mechanism comprises a first clamping piece, a second clamping piece and a second driving device fixed on the first mounting base and used for driving the first clamping piece and the second clamping piece to clamp or release the elastic check ring, the material withdrawing mechanism comprises a material withdrawing piece arranged opposite to the hole body and a third driving device fixed on the first mounting base, the first driving device drives the first mounting base to drive the material withdrawing piece and the first clamping piece and the second clamping piece clamping the elastic check ring to be inserted into the hole body, then the third driving device drives the material withdrawing piece to push the elastic check ring in the direction of the check ring groove, the elastic check ring is pushed into the check ring groove, and efficient mounting of the elastic check ring is realized.

Description

Technical Field

[0001] This invention relates to the field of automotive engineering technology, and in particular to a flexible retaining ring mounting device. Background Technology

[0002] like Figure 1 As shown, during the assembly of automotive steering system components, a bearing needs to be installed inside the bore of the housing, and a retaining ring needs to be installed in the retaining ring groove inside the bore. The retaining ring is used to prevent the bearing from moving axially within the bore. Figure 2 As shown, the elastic retaining ring includes a retaining ring body with a circumferential opening. Clamping holes are provided on both sides of the opening on the retaining ring body. Currently, the elastic retaining ring is mostly installed manually using needle-nose pliers. Specifically, the tips of the two pliers are ground into pins slightly smaller than the clamping holes. Then, the two pins on the pliers are inserted into the two clamping holes of the elastic retaining ring. After manually clamping the pliers, the diameter of the elastic retaining ring is reduced. The elastic retaining ring is then inserted into the retaining ring groove inside the hole. Manual installation of elastic retaining rings is inefficient and cannot meet the requirements for large-scale installation. Summary of the Invention

[0003] The technical problem to be solved by the present invention is that, currently, when installing snap rings, it is necessary to manually insert the snap rings into the snap ring slots in the holes of the housing, resulting in low assembly efficiency.

[0004] To solve the above-mentioned technical problems, the purpose of this invention is to provide an elastic retaining ring mounting device for mounting an elastic retaining ring in a retaining ring groove inside a bore of a housing, comprising:

[0005] A base, wherein the housing is detachably mounted on the base;

[0006] The clamping mechanism includes a first clamping member, a second clamping member, a first mounting base, and a second driving device fixed on the first mounting base. The first mounting base is disposed opposite to the housing. The first clamping member and the second clamping member are both arranged opposite to the hole. The ends of the first clamping member and the second clamping member opposite to the hole are provided with clamping pins for passing through the clamping holes of the elastic retaining ring. The second driving device is used to drive the first clamping member and the second clamping member to move closer to each other or further away from each other.

[0007] The ejection mechanism includes an ejection component arranged opposite to the hole and a third drive device fixed on the first mounting base;

[0008] A first driving device is disposed on the machine base and is used to drive the machine housing and the first mounting base to move closer to each other so that the ejector and the first clamping member and the second clamping member holding the elastic retaining ring are inserted into the hole to the outside of the retaining ring groove.

[0009] The third driving device is connected to the ejector, and drives the ejector to push the elastic retaining ring away from the clamping pin into the retaining ring groove.

[0010] As a preferred embodiment, the end of the ejector facing the hole, the end of the first clamping member facing the hole, and the end of the second clamping member facing the hole are assembled into a columnar structure.

[0011] As a preferred embodiment, the ejector includes an ejector rod and an ejector disc fixed to the end of the ejector rod facing the hole. The ejector disc has a mounting groove. Each clamping pin includes a connecting section passing through the mounting groove and a mounting section protruding from the mounting groove. Each mounting section passes through each clamping hole.

[0012] As a preferred embodiment, a magnetic suction element is fixed to the end of the unloading tray facing the elastic retaining ring, and the elastic retaining ring is attracted to the magnetic suction element.

[0013] As a preferred embodiment, each of the mounting sections includes a tapered portion, the diameter of which gradually increases from near the connecting section to far away from the connecting section.

[0014] As a preferred embodiment, the ejector is a cylindrical body, and a mandrel is inserted inside the cylindrical body. The end of the mandrel facing the hole has a columnar part for inserting a bearing.

[0015] As a preferred embodiment, a measuring rod is slidably inserted through the cylinder wall, arranged parallel to the axial direction of the cylinder. The end of the measuring rod facing the hole is opposite to the end of the elastic retaining ring, and the end of the measuring rod away from the hole is connected to a displacement measuring mechanism for measuring the moving distance of the measuring rod.

[0016] As a preferred embodiment, the mandrel is provided with a mounting cavity arranged along the axial direction of the mandrel. The displacement measuring mechanism includes a connecting rod slidably inserted in the mounting cavity and a contact displacement gauge fixed on the first mounting base. The end of the measuring rod away from the hole is provided with a first connecting part. The first connecting part passes through the hole wall of the mounting cavity and connects to the end of the connecting rod located in the mounting cavity. A measuring block is fixed to the end of the connecting rod extending out of the mounting cavity. The measuring end of the contact displacement gauge abuts against the measuring block.

[0017] As a preferred embodiment, the clamping mechanism further includes a limiting block, which has a limiting groove arranged along the moving direction of the first clamping member and the second clamping member. The non-clamping end of the second clamping member is fixed in the limiting groove, and the non-clamping end of the first clamping member is slidably disposed in the limiting groove. A first adjusting bolt is threadedly fitted in the groove wall of the limiting groove, and the threaded end of the first adjusting bolt extends into the limiting groove and abuts against the side of the first clamping member away from the second clamping member.

[0018] As a preferred embodiment, both the first clamping member and the second clamping member include a clamping section, a transition section and a limiting section arranged sequentially along the axial direction of the hole body, the clamping pin is connected to the end of the clamping section, and the limiting section is disposed in the limiting groove;

[0019] The transition section of the first clamping member and / or the transition section of the second clamping member are threadedly fitted with a second adjusting bolt. The end of the threaded end of the second adjusting bolt located in the first clamping member abuts against the side of the second clamping member facing the first clamping member, and the threaded end of the second adjusting bolt located in the second clamping member abuts against the side of the first clamping member facing the second clamping member.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0021] The elastic retaining ring mounting device of the present invention includes a base, a clamping mechanism, and a retraction mechanism. The base is mounted on the base. The clamping mechanism includes a first clamping member, a second clamping member, and a second driving device fixed on a first mounting base. The first clamping member and the second clamping member are both arranged opposite to the hole. Each of the ends of the first clamping member and the second clamping member facing the hole is provided with a clamping pin for passing through the clamping hole of the elastic retaining ring. The second driving device drives the first clamping member and the second clamping member to move closer or further apart, thereby switching the first clamping member and the second clamping member between a closer clamping position and a farther loading position. The retraction mechanism includes a retraction member arranged opposite to the hole and a third driving device fixed on the first mounting base. The third drive device is connected to the ejector. In use, the first clamping mechanism clamps the housing, and the first drive device drives the first mounting base and the housing to move closer to each other, causing the first mounting base to move towards the hole. The first mounting base drives the ejector and the first and second clamping members holding the elastic retaining ring to insert into the hole, causing the elastic retaining ring to move to the part of the hole located outside the retaining ring groove. Then, the third drive device drives the ejector to push the elastic retaining ring towards the retaining ring groove, pushing the elastic retaining ring away from each clamping pin. The third drive device continues to push the elastic retaining ring, which can push the elastic retaining ring into the retaining ring groove. After entering the retaining ring groove, the elastic retaining ring is stuck in the retaining ring groove under the action of its own elastic force, which can achieve efficient installation of the elastic retaining ring. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the installation structure of the elastic retaining ring inside the housing.

[0023] Figure 2 This is a schematic diagram of the structure of an elastic retaining ring;

[0024] Figure 3 This is an isometric view of the elastic retaining ring mounting device of the present invention;

[0025] Figure 4 This is an isometric view of the elastic retaining ring mounting portion of the elastic retaining ring mounting device of the present invention when the columnar portion and the bearing are not connected.

[0026] Figure 5 for Figure 4 Enlarged view of a section at point C;

[0027] Figure 6 This is an isometric view of the elastic retaining ring mounting portion of the elastic retaining ring mounting device of the present invention when it is connected to a columnar part but not connected to a bearing.

[0028] Figure 7 This is a front view of the elastic retaining ring mounting portion of the elastic retaining ring mounting device of the present invention when a columnar portion and a bearing are connected.

[0029] Figure 8 This is a schematic diagram of the clamping device when the first clamping member and the second clamping member are in the clamping position.

[0030] Figure 9 This is a schematic diagram of the clamping device when the first clamping member and the second clamping member are in the loading position;

[0031] Figure 10 This is a schematic diagram showing the arrangement of the first clamping member, the second clamping member, and the limiting block;

[0032] Figure 11 This is a structural diagram of the ejected part;

[0033] Figure 12 Schematic diagram of the connection structure between the mandrel and the first mounting base;

[0034] Figure 13 This is a schematic diagram of the displacement measuring mechanism;

[0035] In the diagram, 100 is the housing, 101 is the bore, 102 is the retaining ring groove, 200 is the bearing, 300 is the elastic retaining ring, 301 is the clamping hole, 1 is the base, 11 is the first clamping mechanism, 12 is the first mounting base, 13 is the first driving device, 31 is the first clamping member, 311 is the clamping section, 312 is the transition section, 313 is the limiting section, 32 is the second clamping member, 33 is the second driving device, 34 is the clamping pin, 341 is the mounting section, 3411 is the tapered part, 342 is the connecting section, and 35 is the connecting section. Limiting block, 351, limiting groove, 36, first adjusting bolt, 37, second adjusting bolt, 41, ejector, 411, ejector rod, 4111, clearance groove, 412, ejector disc, 4121, mounting groove, 413, magnetic suction, 42, third drive device, 5, spindle, 51, columnar part, 61, measuring rod, 611, first connecting part, 612, second connecting part, 62, connecting rod, 63, contact displacement gauge, 64, measuring block, 65, fourth drive device, 7, second mounting base. Detailed Implementation

[0036] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and are not intended to limit the scope of the invention.

[0037] In the description of this invention, it should be understood that the terms "upper," "lower," "left," "right," "top," "bottom," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. It should be understood that the terms "first," "second," etc., are used in this invention to describe various information, but this information should not be limited to these terms; these terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of this invention, "first" information can also be referred to as "second" information, and similarly, "second" information can also be referred to as "first" information.

[0038] The elastic retaining ring mounting device of the present invention is used to install the elastic retaining ring 300 in the retaining ring groove 102 within the hole 101 of the housing 100, such as... Figures 3 to 13 As shown, the elastic retaining ring mounting device of the present invention includes:

[0039] The base 1 and the housing 100 are detachably mounted on the base 1;

[0040] The clamping mechanism includes a first clamping member 31, a second clamping member 32, a first mounting base 12, and a second driving device 33 fixed on the first mounting base 12. The first mounting base 12 is disposed opposite to the housing 100. The first clamping member 31 and the second clamping member 32 are both disposed opposite to the hole 101. The ends of the first clamping member 31 and the second clamping member 32 opposite to the hole 101 are provided with clamping pins 34 for passing through the clamping holes 301 of the elastic retaining ring 300. The second driving device 33 is used to drive the first clamping member 31 and the second clamping member 32 to move closer to each other or further away from each other.

[0041] The ejection mechanism includes an ejection component 41 arranged opposite to the hole 101 and a third drive device 42 fixed on the first mounting base 12.

[0042] The first driving device 13 is mounted on the base 1 and is used to drive the housing 100 and the first mounting base to move closer to each other so that the ejector 41 and the first clamping member 31 and the second clamping member 32 holding the elastic retaining ring 300 are inserted into the hole 101 to the outside of the retaining ring groove 102; the third driving device 42 is connected to the ejector 41 and drives the ejector 41 to push the elastic retaining ring 300 away from the clamping pin 34 into the retaining ring groove 102.

[0043] The base 1 and the housing 100 are detachably mounted on the base 1. In this embodiment, the base 1 is provided with a first clamping mechanism 11 for clamping the housing 100.

[0044] The clamping mechanism includes a first clamping member 31, a second clamping member 32, and a second driving device 33 fixed on a first mounting base 12. The first mounting base 12 is disposed opposite to the housing 100. The first clamping member 31 and the second clamping member 32 are both disposed opposite to the hole 101. The end of the first clamping member 31 facing the hole 101 and the end of the second clamping member 32 facing the hole 101 are provided with clamping pins 34 for passing through the clamping holes 301 of the elastic retaining ring 300. The second driving device 33 is used to drive the first clamping member 31 and the second clamping member 32 to move closer or further away from each other, thereby switching the first clamping member 31 and the second clamping member 32 between a clamping position that is closer and a loading position that is farther away.

[0045] The first driving device 13 is mounted on the base 1 and is used to drive the housing 100 and the first mounting seat to move closer to each other so that the ejector 41 and the first clamping member 31 and the second clamping member 32 holding the elastic retaining ring 300 are inserted into the hole 101 to the position outside the retaining ring groove 102.

[0046] The ejection mechanism includes an ejection component 41 arranged opposite to the hole body 101 and a third drive device 42 fixed on the first mounting base 12. The third drive device 42 is connected to the ejection component 41. Specifically, the third drive device 42 is connected to the end of the ejection component 41 away from the hole body 101. In use, the second drive device 33 is used to drive the first clamping component 31 and the second clamping component 32 to switch to the loading position. At this time, the distance between the clamping pin 34 at the end of the first clamping component 31 and the clamping pin 34 at the end of the second clamping component 32 increases. When the first clamping component 31 and the second clamping component 32 are in the loading position, the distance between the two clamping pins 34 is equal to the distance between the two clamping holes 301 when the elastic retaining ring 300 is in a free state, which makes it convenient for the operator to manually or use an automatic feeding device to install the elastic retaining ring 300 on the clamping pins 34. After the elastic retaining ring 300 is installed on the first clamping member 31 and the second clamping member 32, the second driving device 33 switches the first clamping member 31 and the second clamping member 32 to the clamping position. At this time, the distance between the two clamping pins 34 is reduced, thereby reducing the outer diameter of the elastic retaining ring 300 to slightly smaller than the diameter of the hole 101. Then, the first driving device 13 drives the first mounting base 12 and the housing 100 to move closer to each other, causing the first mounting base 12 to move towards the hole. The first mounting base 12 drives the ejector 41 and the first clamping member 31 and the second clamping member 32 holding the elastic retaining ring 300 to insert into the hole 101, so that the elastic retaining ring 300... The retaining ring 300 moves to a position on the outside of the retaining ring groove 102 in the hole 101 and close to the retaining ring groove 102. Then, the third driving device 42 drives the ejector 41 to push the elastic retaining ring 300 towards the retaining ring groove 102, pushing the elastic retaining ring 300 away from the clamping pin 34. The ejector 41 continues to push the elastic retaining ring 300, which, after being separated from the clamping pin 34, can be pushed into the retaining ring groove 102. After entering the retaining ring groove 102, the elastic retaining ring 300 automatically expands under its own elastic force, the outer diameter of the elastic retaining ring 300 increases and it is stuck in the retaining ring groove 102, which can achieve efficient installation of the elastic retaining ring 300. After the elastic retaining ring 300 is installed, the first driving device 13 drives the first clamping member 31, the second clamping member 32 and the ejector 41 to move outside the hole 101, and the third driving device 42 drives the ejector 41 to return to the non-ejection state.

[0047] In this embodiment, the base 1 is provided with a first clamping mechanism for clamping the housing 100, and a first mounting base 12 is movably disposed on the base 1, with the first mounting base 12 and the housing 100 arranged at a distance from each other. A first driving device 13 is connected to the first movable base 12, thereby driving the first mounting base 12 to move. In other embodiments of the present invention, the first clamping mechanism can be movably disposed on the base 1, and the first driving device 13 can be connected to the first clamping mechanism; alternatively, both the first clamping mechanism and the first mounting base 12 can be movably disposed on the base 1, with the two ends of the first driving device 13 connected to the first clamping mechanism and the first mounting base 12, respectively.

[0048] In order to ensure that the ejector component 41 can smoothly push the elastic retaining ring 300 away from the clamping pin 34, in this embodiment, as follows: Figure 5 , Figure 10 , Figure 11 As shown, the ejector component 41 includes an ejector rod 411 and an ejector disc 412 fixed to the end of the ejector rod 411 facing the hole 101. The ejector disc 412 has a mounting groove 4121. Each clamping pin 34 includes a connecting section 342 passing through the mounting groove 4121 and a mounting section 341 protruding from the mounting groove 4121. Each mounting section 341 is respectively inserted into each clamping hole 301. Specifically, the groove wall around the mounting groove 4121 can push the elastic retaining ring 300, so that the entire circumference of the elastic retaining ring 300 can be subjected to the pushing force of the ejector disc 412.

[0049] Furthermore, to prevent the elastic retaining ring 300 from disengaging from the clamping pin 34 after being installed after the first clamping member 31 and the second clamping member 32 and before being held in the retaining ring groove 102, in this embodiment, as follows: Figure 5 As shown, a magnetic suction member 413 is fixed to the end of the unloading tray 412 facing the elastic retaining ring 300, and the elastic retaining ring 300 is attracted to the magnetic suction member 413. The magnetic suction member 413 ensures that the elastic retaining ring 300 is stably connected to the unloading tray 412 before being installed into the retaining ring groove 102, thereby ensuring the stability of the elastic retaining ring installation device in this embodiment.

[0050] In this embodiment, to further ensure the stability of the elastic retaining ring 300 connected to the clamping pin 34, such as... Figure 5 As shown, each mounting section 341 includes a tapered portion 3411, and the diameter of the tapered portion 3411 near the connecting section 342 is smaller than the diameter of the tapered portion 3411 away from the connecting section 342. Specifically, when the first clamping member 31 and the second clamping member 32 are in the clamping position, the elastic retaining ring 300 is engaged with the tapered portion 3411 near the smaller diameter portion of the connecting section 342, thereby preventing the elastic retaining ring 300 from disengaging from the clamping pin 34.

[0051] The arrangement of the first clamping member 31, the second clamping member 32, and the ejector member 41 is sufficient to ensure that they can enter the hole 101 synchronously, and that the ejector member 41 can move independently after entering the hole 101. For example, the ejector rod 411 can be made thinner, the diameter of the ejector disc 412 can match the diameter of the hole 101, and the first clamping member 31 and the second clamping member 32 can be set as rods parallel to the ejector rod 411. In this embodiment, to ensure the structural strength of the first clamping member 31, the second clamping member 32, and the ejector member 41, the end of the ejector member 41 facing the hole, the end of the first clamping member 31 facing the hole, and the end of the second clamping member 32 facing the hole 101 are combined to form a columnar structure. Specifically, the ejector 41 is a cylindrical body. The upper end of the cylindrical body is machined into a platform by grinding, milling or wire cutting. The lower ends of the first clamping member 31 and the second clamping member 32 are both arranged to fit the platform at the upper end of the cylindrical body. With this arrangement, the cylindrical body can support and reinforce the first clamping member 31 and the second clamping member 32, ensuring the structural strength of the first clamping member 31 and the second clamping member 32, and making full use of the space inside the hole 101.

[0052] The retaining ring of the automotive steering system needs to be installed at the stop end of the bearing 200. Therefore, before installing the elastic retaining ring 300, the bearing 200 needs to be installed in the bore 101. In this embodiment, in order to improve the installation efficiency of the bearing 200, the ejector 41 is a cylindrical body, and a mandrel 5 is inserted through the cylindrical body. The end of the mandrel 5 facing the bore 101 is provided with a columnar part 51 that protrudes from the ejector 41 and is coaxial with the bore. The columnar part 51 is used to insert the bearing 200. Specifically, the unloading disc 412 has a through hole in the middle for the columnar part 51 to pass through. The diameter of the through hole is smaller than the inner diameter of the elastic retaining ring 300. In use, the elastic retaining ring 300 is first installed on the clamping pins 34 of the first clamping member 31 and the second clamping member 32. Then, the bearing 200 is sleeved on the outside of the columnar part 51. The first driving device 13 drives the first mounting base 12 to move, causing the bearing 200 and the elastic retaining ring 300 to enter the hole synchronously. When the first driving device 13 pushes the bearing 200 to the loading position, the third driving device 42 drives the unloading. Rod 411 and ejector plate 412 push the elastic retaining ring 300 away from clamping pin 34. The elastic retaining ring 300, which is detached from clamping pin 34, is exactly in the position of retaining ring groove 102. After the elastic retaining ring 300 is inserted into retaining ring groove 102, the first driving device 13 drives the first mounting base 12 to move away from the hole body 101. At this time, under the blocking action of elastic retaining ring 300, bearing 200 is detached from column body, realizing the synchronous installation of bearing 200 and elastic retaining ring 300, which greatly improves the installation efficiency of bearing 200 and elastic retaining ring 300.

[0053] The loading position of the elastic retaining ring 300 determines the axial clearance of the bearing 200. Excessive axial clearance leads to increased axial movement of the bearing 200 during operation, resulting in increased noise and potentially affecting the function of its mating shaft. Therefore, it is necessary to check the loading position of the elastic retaining ring 300 within the bore 101. In this embodiment, as... Figure 6 , Figure 13 As shown, a measuring rod 61, arranged axially parallel to the cylinder, slides through the cylinder wall. One end of the measuring rod 61 facing the bore 101 is opposite to the end of the elastic retaining ring 300. The end of the measuring rod 61 away from the bore 101 is connected to a displacement measuring mechanism for measuring the movement distance of the measuring rod 61. Specifically, after the bearing 200 retaining ring is engaged in the retaining ring groove 102, the measuring rod 61 is pushed towards the elastic retaining ring 300 until its end abuts against the end of the elastic retaining ring 300 facing outward from the bore 101. At this point, the displacement measuring mechanism can measure the distance the measuring rod 61 has moved. By comparing the distance moved by the measuring rod 61 with a standard value, it can be determined whether the loading position of the elastic retaining ring 300 is within the standard setting range, thus detecting whether the loading position of the elastic retaining ring 300 is qualified.

[0054] In order to make the elastic retaining ring mounting device of the present invention compact, the spindle 5 is provided with a mounting cavity arranged along the axial direction of the spindle 5. The displacement measuring mechanism includes a connecting rod 62 slidably inserted in the mounting cavity and a contact displacement meter 63 fixed on the first mounting seat 12. The measuring rod 61 has a first connecting part 611 at one end away from the hole 101. The first connecting part 611 passes through the hole wall of the mounting cavity and connects to one end of the connecting rod 62 inserted into the mounting cavity. A measuring block 64 is fixed at one end of the connecting rod 62 extending out of the mounting cavity. The measuring end of the contact displacement meter 63 abuts against the measuring block 64. Specifically, the mounting cavity is a through hole coaxial with the mandrel 5. The connecting rod 62 is placed in the mounting cavity of the mandrel 5, fully utilizing the internal space of the mandrel 5. This allows the measuring mechanism for measuring the loading position of the elastic retaining ring 300, the second clamping mechanism for holding the elastic retaining ring 300, the ejection mechanism for pushing the elastic retaining ring 300 away from the second clamping mechanism and engaging it in the retaining ring groove 102, and the bearing 200 mounting mechanism for mounting the bearing 200 to be cleverly arranged within the narrow space of the hole 101. Furthermore, the connecting rod 62, mandrel 5, and ejection rod 411 are sequentially nested within each other to achieve reinforcement and guidance, ensuring the connection strength and operational stability of the connecting rod 62, mandrel 5, ejection rod 411, and measuring rod 61. In this embodiment, as... Figure 12 As shown, the mandrel 5 is fixedly connected to the first mounting base, and the ejector rod 411 is slidably sleeved on the outside of the mandrel 5.

[0055] In this embodiment, two magnetic suction components 413 are provided. The two magnetic suction components 413 are arranged at intervals along the axial direction of the unloading disc 412. The unloading disc 412 is provided with a relief groove 4111 for the measuring rod 61 to pass through at the position between the two magnetic suction components 413. The measuring end of the measuring rod 61 slides through the relief groove 4111.

[0056] To improve the detection efficiency when measuring the elastic retaining ring 300, in this embodiment, the displacement measuring mechanism further includes a fourth driving device 65 fixed on the first mounting base 12. The fourth driving device 65 is used to drive the measuring rod 61 to move axially parallel to the cylinder. In other embodiments of the present invention, the fourth driving device 65 may not be provided, and the measuring rod 61 may be moved manually.

[0057] In this embodiment, the fourth driving device 65 is a pneumatic cylinder fixed on the first mounting base 12. The measuring rod 61 is provided with a connecting block that protrudes radially outward along the ejector 41. The axial direction of the pneumatic cylinder is parallel to the axial direction of the bore 101. The output end of the pneumatic cylinder is arranged facing the bore 101 and connected to the connecting block. Specifically, the end of the measuring rod 61 away from the bore 101 is provided with a second connecting part 612. The second connecting part 612 extends outward from the ejector rod 411 and connects to the fourth driving device 65.

[0058] There are various ways to implement the second driving device 33, such as using a forward and reverse rotating lead screw to drive the two sliders to move closer or further apart to drive the first clamping member 31 and the second clamping member 32. In this embodiment, as shown... Figure 8 , Figure 9 As shown, for ease of processing, the second drive device 33 is a pneumatic finger fixed on the first mounting base 12, and the two output ends of the pneumatic finger are respectively connected to the first clamping member 31 and the second clamping member 32.

[0059] To facilitate precise control of the movement distance of the first clamping member 31 and the second clamping member 32, in this embodiment, as follows: Figure 10As shown, the clamping mechanism also includes a limiting block 35, which has a limiting groove 351. The limiting groove 351 is arranged along the moving direction of the first clamping member 31 and the second clamping member 32. The non-clamping end of the second clamping member 32 is fixed in the limiting groove 351, and the non-clamping end of the first clamping member 31 is slidably disposed in the limiting groove 351. The limiting block 35 is connected to a first limiting member that can move along the length direction of the limiting groove 351. The end of the first limiting member abuts against the side of the first clamping member 31 away from the second clamping member 32. Specifically, the first adjusting component is a first adjusting bolt 36. The groove wall of the limiting groove 351 is provided with a first threaded hole arranged along the moving direction of the first clamping member 31 and the second clamping member 32. The first adjusting bolt 36 is screwed into the threaded hole. By rotating the first adjusting bolt 36, the length of the threaded end of the first adjusting bolt 36 extending into the limiting groove 351 can be adjusted. When the second driving device 33 drives the first clamping member 31 and the second clamping member 32 to switch to the loading position, the threaded end of the first adjusting bolt 36 abuts against the side of the first clamping member 31 away from the second clamping member 32. By rotating the first adjusting bolt 36, the length of the threaded end of the first adjusting bolt 36 extending into the limiting groove 351 can be changed, and the distance between the two clamping pins 34 when the first clamping member 31 and the second clamping member 32 are in the loading position can be adjusted, so that the distance between the two clamping pins 34 matches the distance between the two clamping holes 301 of the elastic retaining ring 300.

[0060] Furthermore, both the first clamping member 31 and the second clamping member 32 include a clamping section 311, a transition section 312 and a limiting section 313 arranged sequentially along the axial direction of the hole. The clamping pin 34 is connected to the end of the clamping section 311, and the limiting section 313 is disposed in the limiting groove 351. The transition section 312 of the first clamping member 31 and / or the transition section 312 of the second clamping member 32 are threadedly fitted with a second adjusting bolt 37. The end of the threaded end of the second adjusting bolt 37 located in the first clamping member 31 abuts against the side of the second clamping member 32 facing the first clamping member 31, and the threaded end of the second adjusting bolt 37 located in the second clamping member 32 abuts against the side of the first clamping member 31 facing the second clamping member 32. Specifically, the transition section 312 of the first clamping member 31 is provided with a second threaded hole arranged along the moving direction of the first clamping member 31 and the second clamping member 32. The second adjusting bolt 37 is screwed into the second threaded hole. By rotating the second adjusting bolt 37, the length of the threaded end of the second adjusting bolt 37 protruding outside the first clamping member 31 can be adjusted. When the second driving device 33 switches the first clamping member 31 and the second clamping member 32 to the clamping position, the threaded end of the second adjusting bolt 37 abuts against the side of the second clamping member 32 facing the first clamping member 31. Therefore, by rotating the second adjusting bolt 37, the distance between the two clamping pins 34 when the first clamping member 31 and the second clamping member 32 are in the clamping position can be adjusted, which facilitates precise control of the distance between the two clamping pins 34 when the first clamping member 31 and the second clamping member 32 are in the clamping position. In other embodiments of the present invention, the second adjusting bolt 37 can be disposed in the transition section 312 of the second clamping member 32.

[0061] In this embodiment, the first driving device 13 and the third driving device 42 are pneumatic cylinders, and the telescopic shafts of the first driving device 13 and the third driving device 42 are parallel to the axial direction of the bore 101.

[0062] To facilitate the installation of bearing 200 and elastic retaining ring 300 by operators, in this embodiment, a second mounting seat 7 is slidably guided onto the base 1. A first mounting seat 12 is slidably guided onto the second mounting seat 7. A handle is fixed to the second mounting seat 7. Before installing the elastic retaining ring 300 and bearing 200, the operator manually holds the handle to move the second mounting seat 7 to a loading position farther from the machine housing 100. This avoids the limited operating space caused by the first clamping member 31, the second clamping member 32, and the ejector member 41 being too close to the machine housing 100, thus facilitating the quick installation of the elastic retaining ring 300 and bearing 200 by operators. The base 1 is also provided with a mechanism for mounting the second mounting seat... 7. A locking cylinder is locked in the assembly position. The telescopic end of the locking cylinder is connected to a locking pin. The outer side of the second mounting seat 7 is provided with a locking hole. After the operator installs the elastic retaining ring 300 and the bearing 200 on the clamping pin 34 and the columnar part 51 respectively, the operator holds the handle and moves the second mounting seat 7 to the assembly position hinged to the housing 100. At this time, the distance between the end of the bearing 200 and the end of the hole 101 is about 5mm. The telescopic end of the locking cylinder drives the locking pin to insert into the locking hole, thereby fixing the position of the second mounting seat 7. Then, the third drive device 42 is activated to install the bearing 200 and the elastic retaining ring 300 in the hole 101.

[0063] The process of using the elastic retaining ring mounting device of the present invention is as follows:

[0064] First, according to the required specifications of the elastic retaining ring 300, the distance between the first clamping member 31 and the second clamping member 32 in the loading position and the clamping position is adjusted by rotating the first adjusting bolt 36 and the second adjusting bolt 37. Before installing the elastic retaining ring 300 and the bearing 200, the second mounting base 7 is moved to a loading position farther from the housing 100 by manually holding the handle. When the second mounting base 7 is in the loading position, the second drive device 33 drives the first clamping member 31 and the second clamping member 32 to switch to the loading position. Then, the elastic retaining ring 300 is installed on the clamping pins 34, so that the end of the elastic retaining ring 300 is in contact with the magnetic suction member 413 on the unloading tray 412. Then, the second drive device 33 switches the first clamping member 31 and the second clamping member 32 to the clamping position. After that, the bearing 200 is sleeved on the outside of the columnar part 51. Then, the second mounting base 7 is moved to the assembly position by manually holding the handle. The locking cylinder locks the position of the second mounting seat 7. Then, the first drive device 13 drives the first mounting seat 12 to move closer to the hole 101, so that the ejector 41, the spindle 5 with the bearing 200 installed, and the first clamping member 31 and the second clamping member 32 holding the elastic retaining ring 300 are inserted into the hole 101. After the bearing 200 is installed in place, the third drive device 42 drives the ejector 41 to push the elastic retaining ring 300 towards the retaining ring groove 102, pushing the elastic retaining ring 300 away from each clamping pin 34 and pushing the elastic retaining ring 300 into the retaining ring groove 102. Then, the third drive device 42 drives the retaining member to reset, and the first drive device 13 drives the first mounting seat 12 to move away from the hole 101, moving the ejector 41, the first clamping member 31 and the second clamping member 32 outside the hole 101. Then, the second drive device 33 drives the first clamping member 31 and the second clamping member 32 to switch to the loading position.

[0065] In summary, the elastic retaining ring mounting device of the present invention includes a base 1, a clamping mechanism, and a retraction mechanism. The base 1 is provided with a first clamping mechanism 11 for clamping the housing 100, a first mounting base 12 spaced apart from the first clamping mechanism 11, and a first driving device 13 for driving the first mounting base 12 to move. The clamping mechanism includes a first clamping member 31, a second clamping member 32, and a second driving device 33 fixed on the first mounting base 12. Both the first clamping member 31 and the second clamping member 32 are arranged opposite to the hole 101. The first clamping member 31 and the second clamping member 32, both facing the hole 101, are provided with clamping pins 34 for passing through the clamping holes 301 of the elastic retaining ring 300. The second driving device 33 is used to drive the first clamping member 31 and the second clamping member 32 to switch between a closer clamping position and a farther loading position. The unloading mechanism includes an unloading member 41 arranged opposite to the hole 101 and a third driving device 42 fixed on the first mounting base 12. The third driving device 42 and the unloading member 41 are connected to the first mounting base 12. The end of the material 41 facing away from the hole 101 is connected; in use, the first clamping mechanism 11 clamps the housing, and the first driving device 13 drives the first mounting base 12 to move towards the hole. The first mounting base 12 drives the ejector 41 and the first clamping member 31 and the second clamping member 32 holding the elastic retaining ring 300 to insert into the hole 101, so that the elastic retaining ring 300 moves to the part of the hole 101 located outside the retaining ring groove 102. Then, the third driving device 42 drives the ejector 41 towards the retaining ring groove 101. The elastic retaining ring 300 is pushed in the direction of 2, pushing it away from each clamping pin 34. The third driving device 42 continues to push the elastic retaining ring 300, which can push the elastic retaining ring 300 into the retaining ring groove 102. After entering the retaining ring groove 102, the elastic retaining ring 300 is stuck in the retaining ring groove 102 under the action of its own elastic force, which can realize the efficient installation of the elastic retaining ring 300. The elastic retaining ring installation device of the present invention can also install the bearing 200 simultaneously, which greatly improves the assembly efficiency of automotive steering system components.

[0066] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present invention, and these improvements and substitutions should also be considered within the scope of protection of the present invention.

Claims

1. A resilient retaining ring mounting device for mounting a resilient retaining ring (300) in a retaining ring groove (102) within a hole (101) of a housing (100), characterized in that, include: The base (1) is detachably mounted on the housing (100); The clamping mechanism includes a first clamping member (31), a second clamping member (32), a first mounting base (12), and a second driving device (33) fixed on the first mounting base (12). The first mounting base (12) is disposed opposite to the housing (100). The first clamping member (31) and the second clamping member (32) are both disposed opposite to the hole (101). The first clamping member (31) and the second clamping member (32) are each provided with a clamping pin (34) for passing through the clamping hole (301) of the elastic retaining ring (300) at one end opposite to the hole (101). The second driving device (33) is used to drive the first clamping member (31) and the second clamping member (32) to move closer to each other or further away from each other. The ejection mechanism includes an ejection component (41) arranged opposite to the hole (101) and a third drive device (42) fixed on the first mounting base (12). The first driving device (13) is disposed on the base (1) and is used to drive the housing (100) and the first mounting base (12) to move closer to each other so that the ejector (41) and the first clamping member (31) and the second clamping member (32) holding the elastic retaining ring (300) are inserted into the hole (101) to the outside of the retaining ring groove (102); the third driving device (42) is connected to the ejector (41) and drives the ejector (41) to push the elastic retaining ring (300) away from the clamping pin (34) into the retaining ring groove (102); the ejector (41) is assembled into a columnar structure at one end facing the hole, the first clamping member (31) is assembled into a columnar structure at one end facing the hole and the second clamping member (32) is assembled into a columnar structure. The ejector (41) includes an ejector rod (411) and an ejector disc (412) fixed to the end of the ejector rod (411) facing the hole (101). The ejector disc (412) has a mounting groove (4121). Each clamping pin (34) includes a connecting section (342) passing through the mounting groove (4121) and a mounting section (341) protruding from the mounting groove (4121). Each mounting section (341) passes through each clamping hole (301). The clamping mechanism also includes a limiting block (35), which has a limiting groove (351) arranged along the moving direction of the first clamping member (31) and the second clamping member (32). The non-clamping end of the second clamping member (32) is fixed in the limiting groove (351), and the non-clamping end of the first clamping member (31) is slidably disposed in the limiting groove (351). A first adjusting bolt (36) is threadedly fitted in the groove wall of the limiting groove (351). The threaded end of the first adjusting bolt (36) extends into the limiting groove (351) and abuts against the side of the first clamping member (31) away from the second clamping member (32).

2. The elastic retaining ring mounting device according to claim 1, characterized in that, A magnetic suction element (413) is fixed to one end of the unloading tray (412) facing the elastic retaining ring (300), and the elastic retaining ring (300) is attracted to the magnetic suction element (413).

3. The elastic retaining ring mounting device according to claim 1, characterized in that, Each of the mounting sections (341) includes a tapered portion (3411) whose diameter gradually increases from near the connecting section (342) to away from the connecting section (342).

4. The elastic retaining ring mounting device according to claim 1, characterized in that, The ejector (41) is a cylindrical body, and a mandrel (5) is inserted inside the cylindrical body. One end of the mandrel (5) facing the hole (101) is provided with a columnar part (51) for inserting a bearing (200).

5. The elastic retaining ring mounting device according to claim 4, characterized in that, A measuring rod (61) is slidably inserted through the cylinder wall, parallel to the axial direction of the cylinder. One end of the measuring rod (61) facing the hole (101) is opposite to the end of the elastic retaining ring (300). The other end of the measuring rod (61) away from the hole (101) is connected to a displacement measuring mechanism for measuring the moving distance of the measuring rod (61).

6. The elastic retaining ring mounting device according to claim 5, characterized in that, The mandrel (5) is provided with a mounting cavity arranged along the axial direction of the mandrel (5). The displacement measuring mechanism includes a connecting rod (62) slidably inserted in the mounting cavity and a contact displacement gauge (63) fixed on the first mounting base (12). The measuring rod (61) has a first connecting part (611) at one end away from the hole (101). The first connecting part (611) passes through the hole wall of the mounting cavity and connects to one end of the connecting rod (62) located in the mounting cavity. A measuring block (64) is fixed at one end of the connecting rod (62) extending out of the mounting cavity. The measuring end of the contact displacement gauge (63) abuts against the measuring block (64).

7. The elastic retaining ring mounting device according to claim 1, characterized in that, Both the first clamping member (31) and the second clamping member (32) include a clamping section (311), a transition section (312) and a limiting section (313) arranged sequentially along the axial direction of the hole. The clamping pin (34) is connected to the end of the clamping section (311), and the limiting section (313) is disposed in the limiting groove (351). The transition section (312) of the first clamping member (31) and / or the transition section (312) of the second clamping member (32) are threadedly fitted with a second adjusting bolt (37). The end of the threaded end of the second adjusting bolt (37) located in the first clamping member (31) abuts against the side of the second clamping member (32) facing the first clamping member (31), and the threaded end of the second adjusting bolt (37) located in the second clamping member (32) abuts against the side of the first clamping member (31) facing the second clamping member (32).

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