Pressure head floating mechanism and press fitting equipment

Abstract

The invention provides a pressure head floating mechanism and press fitting equipment, the pressure head floating mechanism comprises a press mounting seat, a pressure head mounting seat, a connecting piece and a bearing, the connecting piece is fixedly connected to the press mounting seat, the pressure head mounting seat is movably arranged on the connecting piece, and the bearing is located between the press mounting seat and the pressure head mounting seat. The connecting piece penetrates through the bearing in the axial direction of the bearing, the bearing comprises a first ring, a rolling body and a second ring which are sequentially distributed in the axial direction of the bearing, the first ring is opposite to the press mounting seat, and the second ring is opposite to the pressure head mounting seat. The first ring is movably arranged between the press mounting seat and the rolling body, and / or the second ring is movably arranged between the rolling body and the pressure head mounting seat. Thus, in the process that the press-fitting equipment presses the contained piece into the mounting hole of the containing piece, the pressure head assembly can drive the first ring and / or the second ring of the bearing to move relative to the press mounting seat under the action of external force, so that the contained piece can be accurately aligned relative to the containing piece.

Description

Technical Field

[0001] The present invention relates to the field of press-fitting technology, and in particular to a press head floating mechanism and press-fitting equipment. Background Art

[0002] In the related art, the press assembly of the press-fitting equipment can drive the press head assembly to press-fit the contained part into the mounting hole of the containing part. However, due to the low precision of the press-fitting equipment, it is difficult to correctly align the containing part and the contained part for press-fitting. Summary of the invention

[0003] The embodiments of the present invention provide a press head floating mechanism and a press-fitting device to improve at least one of the above problems.

[0004] The embodiments of the present invention achieve the above-mentioned purpose through the following technical solutions.

[0005] In the first aspect, an embodiment of the present invention provides a pressure head floating mechanism, which includes a press mounting seat, a pressure head mounting seat, a connecting piece and a bearing. The connecting piece is fixedly connected to the press mounting seat, and the pressure head mounting seat is movably arranged on the connecting piece. The bearing is located between the press mounting seat and the pressure head mounting seat. The connecting piece passes through the bearing along the axial direction of the bearing. The bearing includes a first circle, a rolling body and a second circle distributed along the axial direction of the bearing in sequence. The first circle is opposite to the press mounting seat, and the second circle is opposite to the pressure head mounting seat. The first circle is movably arranged between the press mounting seat and the rolling body, and / or the second circle is movably arranged between the rolling body and the pressure head mounting seat.

[0006] In some embodiments, a limiting groove is provided on a side of the first circle facing the rolling body or on a side of the second circle facing the rolling body, and the rolling body is partially located in the limiting groove.

[0007] In some embodiments, the limiting groove is an annular limiting groove.

[0008] In some embodiments, a first inclined surface is provided on one side of the pressure head mounting seat facing the second circle, and the first inclined surface is arranged around the connecting member. A second inclined surface is provided on one side of the second circle facing the pressure head mounting seat, and the second inclined surface is arranged around the connecting member, and the second inclined surface abuts against the first inclined surface.

[0009] In some embodiments, the pressure head mounting seat is provided with a mounting through hole, and the connecting piece includes a main body and a head connected to each other, the main body is fixedly connected to the press mounting seat and passed through the mounting through hole, the press mounting seat, the mounting through hole and the head are distributed along the axial direction of the bearing in sequence, the maximum outer diameter of the head is larger than the inner diameter of the mounting through hole, and there is a gap between the main body and the pressure head mounting seat along the radial direction of the bearing.

[0010] In some embodiments, a clearance between the main body and the pressure head mounting seat along the radial direction of the bearing is 0.5 mm to 1.5 mm.

[0011] In some embodiments, the pressure head mounting seat is provided with a third inclined surface on one side facing the head, and the third inclined surface is arranged around the connecting member. A fourth inclined surface is provided on one side of the head facing the third inclined surface, and the fourth inclined surface is arranged around the connecting member, and the fourth inclined surface cooperates with the third inclined surface 203.

[0012] In some embodiments, a groove is provided on a side of the pressure head mounting seat facing away from the press mounting seat, the groove is connected to the mounting through hole, and the third inclined surface and the head are both located in the groove.

[0013] In some embodiments, the main body includes a first sub-connector, a second sub-connector and at least one gasket, the first sub-connector is fixed to the press mounting base, the second sub-connector is connected to the first sub-connector and the head, and at least one gasket is detachably located between the press mounting base and the second sub-connector.

[0014] In some embodiments, the pressure head floating mechanism further includes an elastic member, the press mounting seat is provided with a mounting groove, the elastic member is located in the mounting groove and abuts against a side of the first circle away from the second circle.

[0015] In some embodiments, there are multiple elastic members, and the multiple elastic members are arranged at intervals around the connecting member.

[0016] In some embodiments, the ram floating mechanism further includes a fixing member, which is fixedly connected to the press mounting seat, and the ram mounting seat is movably connected to the fixing member.

[0017] In a second aspect, an embodiment of the present invention further provides a press-fitting device, which includes a press assembly, a press head assembly and a press head floating mechanism of any of the above-mentioned embodiments, wherein the press mounting seat is mounted on the press assembly, and the press head assembly is mounted on the press head mounting seat.

[0018] In the ram floating mechanism and press-fitting equipment provided by the embodiment of the present invention, the ram floating mechanism includes a press mounting seat, a ram mounting seat, a connecting piece and a bearing, the connecting piece is fixedly connected to the press mounting seat, the ram mounting seat is movably arranged on the connecting piece, the bearing is located between the press mounting seat and the ram mounting seat, the connecting piece is passed through the bearing along the axial direction of the bearing, and the bearing includes a first circle, a rolling body and a second circle distributed in sequence along the axial direction of the bearing, the first circle is opposite to the press mounting seat, and the second circle is opposite to the ram mounting seat. The first circle is movably arranged between the press mounting seat and the rolling body, and / or the second circle is movably arranged between the rolling body and the ram mounting seat. In this way, the press mounting seat can be connected to the press assembly, and the ram mounting seat can be connected to the ram assembly. In the process of the press-fitting equipment pressing the contained part into the mounting hole of the contained part, the ram assembly can drive the first circle and / or the second circle of the bearing to move relative to the press mounting seat under the action of external force, so that the ram mounting seat can drive the contained part to float, which helps the contained part to deflect relative to the containing part, so that the contained part can be adaptively aligned with the containing part, so that the contained part can be accurately aligned with the containing part, which helps to reduce the risk of unqualified press-fitting interference caused by the axis of the contained part and the axis of the mounting hole of the containing part being non-concentric due to working positioning errors. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 A schematic structural diagram of a press-fitting device provided in an embodiment of the present invention is shown.

[0021] Figure 2 Shows Figure 1 Schematic diagram of the structure of the press assembly and frame.

[0022] Figure 3 Shows Figure 1 Schematic diagram of the structure of the middle containing part.

[0023] Figure 4 A schematic structural diagram of a pressure head floating mechanism provided in an embodiment of the present invention is shown.

[0024] Figure 5 Shows Figure 4 Schematic diagram of the exploded structure of the medium pressure head floating mechanism.

[0025] Figure 6 Shows Figure 4A cross-sectional schematic diagram of the pressure head floating mechanism in an initial state.

[0026] Figure 7 Shows Figure 4 A cross-sectional schematic diagram of the pressure head floating mechanism in a floating state.

[0027] Figure 8 Shows Figure 5 Schematic diagram of the structure of the medium pressure machine mounting base.

[0028] Fig. 9 Shows Figure 5 Schematic diagram of the structure of the medium pressure head mounting base.

[0029] Fig.10 Shows Figure 5 Schematic diagram of the structure of the middle bearing.

[0030] Fig.11 Shows Fig.10 Schematic diagram of the structure of the middle rolling element and the second ring assembly.

[0031] Fig.12 Shows Figure 5 Schematic diagram of the structure of the connecting parts.

[0032] Description of reference numerals:

[0033] The ram floating mechanism 10, the press-fitting device 20, the press mounting seat 100, the mounting groove 101, the ram mounting seat 200, the first inclined surface 201, the mounting through hole 202, the third inclined surface 203, the groove 204, the connecting member 300, the main body 310, the first sub-connecting member 311, the second sub-connecting member 312, the gasket 313, the head 320, the fourth inclined surface 321, the bearing 400, the limiting groove 401, the first circle 410, the rolling body 420, the second circle 430, the second inclined surface 431, the elastic member 500, the fixing member 600, the press assembly 700, the servo press 710, the vertical slide 720, the ram assembly 800, the containing member 30, the mounting hole 30a, the contained member 40, the frame 900, the first sub-frame 910, and the second sub-frame 920. DETAILED DESCRIPTION

[0034] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0035] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0036] See also Figures 1 to 3 The embodiment of the present invention proposes a press-fitting device 20, which can be used to press-fit the enclosed part 40 into the mounting hole 30a of the enclosed part 30. For example, the enclosed part 30 can be a reducer housing, and the reducer housing is provided with a mounting hole 30a. The enclosed part 40 can be a bearing part, and the press-fitting device 20 can press-fit the bearing part into the mounting hole 30a of the reducer housing.

[0037] The press-fitting device 20 may include a press assembly 700 , a press head assembly 800 and a press head floating mechanism 10 . The press head floating mechanism 10 may be movably installed between the press assembly 700 and the press head assembly 800 so as to drive the press head assembly 800 to make adaptive adjustments relative to the press assembly 700 .

[0038] The press-fitting device 20 may include a frame 900, the outer contour of the frame 900 may be roughly L-shaped, the frame 900 may include a first sub-frame 910 and a second sub-frame 920, the first sub-frame 910 may be fixed to the ground by bolts or screws to improve the stability of the press-fitting device 20, the second sub-frame 920 may be installed on the first sub-frame 910, for example, the second sub-frame 920 may be connected to the first sub-frame 910 by bolting or welding, and the second sub-frame 920 may be installed above the first sub-frame 910. In other embodiments, the second sub-frame 920 may be integrally formed with the first sub-frame 910, thereby helping to reduce the assembly process of the second sub-frame 920 and the first sub-frame 910.

[0039] The side of the first sub-frame 910 facing away from the ground can be used to place the containing member 30. The press assembly 700, the press head floating mechanism 10 and the press head assembly 800 can be installed in the second sub-frame 920 in sequence along the vertical direction and are located above the first sub-frame 910. The side of the press head assembly 800 close to the first sub-frame 910 can be used for the contained member 40 to be installed, so that the press assembly 700 drives the contained member 40 to be press-fitted with the containing member 30 located on the first sub-frame 910.

[0040] The press assembly 700 may include a servo press 710 and a vertical slide 720, and the servo press 710, the vertical slide 720, the ram floating mechanism 10 and the ram assembly 800 may be connected in sequence. The servo press 710 may drive the vertical slide 720 to move in the vertical direction, thereby driving the ram floating mechanism 10 and the ram assembly 800 to move in the vertical direction. The ram assembly 800 may be a structure such as a fixed fixture. Therefore, when the servo press 710 moves downward, it may drive the ram assembly 800 to adaptively press the contained part 40 into the contained part 30, thereby completing the press-fitting action.

[0041] The specific structure of the pressure head floating mechanism 10 refers to the following embodiments. Since the press-fitting equipment 20 adopts all the technical solutions of all the following embodiments, it has at least all the beneficial effects brought by the technical solutions of the following embodiments, which will not be repeated here.

[0042] See also Figure 1 and Figure 4 The embodiment of the present invention also provides a pressure head floating mechanism 10, which can be applied to the press-fitting device 20 so that the containing part 30 and the contained part 40 can be correctly aligned. In the following embodiments, the application of the pressure head floating mechanism 10 to the press-fitting device 20 is mainly used as an example for description and introduction, and other situations requiring the pressure head floating mechanism 10 can be implemented with reference.

[0043] See also Figures 4 to 7 The ram floating mechanism 10 may include a press mounting seat 100, a press mounting seat 200, a connecting member 300 and a bearing 400. The connecting member 300 is fixedly connected to the press mounting seat 100, and the press mounting seat 200 is movably arranged on the connecting member 300. The bearing 400 is located between the press mounting seat 100 and the press mounting seat 200. The connecting member 300 is penetrated through the bearing 400 along the axial direction of the bearing 400. The bearing 400 includes a first ring 410, a rolling body 420 and a second ring 430 which are sequentially distributed along the axial direction of the bearing 400. The first ring 410 is opposite to the press mounting seat 100, and the second ring 430 is opposite to the press mounting seat 200. The first ring 410 is movably arranged between the press mounting seat 100 and the rolling body 420, and / or the second ring 430 is movably arranged between the rolling body 420 and the press mounting seat 200.

[0044] In this way, the press mounting seat 100 can be connected to the press assembly 700, and the ram mounting seat 200 can be connected to the ram assembly 800. In the process of the pressing device 20 pressing the contained part 40 into the mounting hole 30a of the contained part 30, the ram assembly 800 can drive the first circle 410 and / or the second circle 430 of the bearing 400 to move relative to the press mounting seat 100 under the action of external force, so that the ram mounting seat 200 can drive the contained part 40 to float, which helps the contained part 40 to deflect relative to the contained part 30, so that the contained part 40 can be adaptively aligned with the contained part 30, so that the contained part 40 can be accurately aligned with the contained part 30, thereby helping to reduce the risk of unqualified press-fitting interference caused by the axis of the contained part 40 and the axis of the mounting hole 30a of the contained part 30 being non-concentric due to the positioning error of the pressing device 20.

[0045] In addition, the pressure head mounting seat 200 is movably arranged on the connecting member 300, the first circle 410 is movably arranged between the press mounting seat 100 and the rolling body 420, and / or the second circle 430 is movably arranged between the rolling body 420 and the pressure head mounting seat 200, so that the containing member 30 can swing in multiple directions, and the structure is simple, the cost is low, and the maintenance is convenient. Moreover, since the pressure head floating mechanism 10 is provided with a bearing 400, the pressure head floating mechanism 10 can share and absorb the impact and vibration during the press-fitting process, which helps to reduce the risk of damage to the press-fitting device 20, thereby extending the service life of the press-fitting device 20.

[0046] The pressure head floating mechanism 10 can have an initial state and a floating state. Figure 6 As shown, the press-fitting device 20 has not started press-fitting, the servo press 710 has not driven the containing member 30 to move downward, and the containing member 30 has not made any contact with the contained member 40. At this time, the pressing head floating mechanism 10 is in the initial state; Figure 7 As shown, when the pressing device 20 starts pressing, the servo press 710 drives the vertical slide 720 to slide downward, so that the press head assembly 800 drives the contained part 40 to move downward, and the contained part 40 comes into contact with the containing part 30. At this time, the press head floating mechanism 10 is in a floating state, which helps the press head assembly 800 to press the contained part 40 into the containing part 30 under the action of the servo press 710.

[0047] See also Figure 1 , Figure 6 and Figure 8The press mounting seat 100 can be connected to the press assembly 700, wherein the press mounting seat 100 can be connected to one end of the vertical slide 720 of the press assembly 700 away from the servo press 710. For example, the press mounting seat 100 can be screwed to the vertical slide 720, or the press mounting seat 100 can be welded to the vertical slide 720 so that the press mounting seat 100 and the vertical slide 720 are relatively fixed.

[0048] See also Figure 1 , Figure 6 and Fig. 9 The side of the ram mounting seat 200 facing away from the press mounting seat 100 can be connected to the ram assembly 800, for example, the ram mounting seat 200 can be screwed to the ram assembly 800, or the ram mounting seat 200 can be welded to the ram assembly 800. When the ram floating mechanism 10 is in the initial state, there can be a gap between the ram mounting seat 200 and the press mounting seat 100, so as to facilitate the ram mounting seat 200 to be movably arranged on the connecting member 300.

[0049] The pressure head mounting seat 200 and the press mounting seat 100 can enclose a receiving space, and the bearing 400 can be located in the receiving space, thereby helping to protect the bearing 400. In addition, the pressure head mounting seat 200 and the press mounting seat 100 can also limit the bearing 400 so that the bearing 400 can move in the receiving space.

[0050] See also Figure 6 and Fig.10 The bearing 400 can be a thrust ball bearing, so that the contained part 40 can swing in multiple directions. In addition, the pressure head floating mechanism 10 can meet the requirement that the pressure head mounting seat 200 drives the contained part 40 to float by a single bearing, and the structure of the pressure head floating mechanism 10 is relatively compact, so that the size of the pressure head floating structure 10 in the width direction and the height direction are greatly reduced.

[0051] The first ring 410 may be a bearing ring of the bearing 400, the first ring 410 may be located between the press mounting seat 100 and the rolling element 420, the outer contour of the first ring 410 may be roughly annular, and the first ring 410 may be arranged around the connecting member 300. Specifically, since the first ring 410 is arranged around the connecting member 300, when the first ring 410 moves, the first ring 410 can still surround the connecting member 300, which helps to avoid a large change in the position of the first ring 410, so that the first ring 410 can move within a preset range, thereby helping to improve the stability and reliability of the pressure head floating mechanism 10.

[0052] The second ring 430 may be a bearing ring of the bearing 400, the second ring 430 may be located between the rolling element 420 and the pressure head mounting seat 200, the outer contour of the second ring 430 may be roughly annular, and the second ring 430 may be arranged around the connecting member 300. Specifically, since the second ring 430 is arranged around the connecting member 300, when the second ring 430 moves, the second ring 430 can still surround the connecting member 300, which helps to avoid a large change in the position of the second ring 430, so that the second ring 430 can move within a preset range, thereby helping to improve the stability and reliability of the pressure head floating mechanism 10.

[0053] The rolling body 420 abuts between the first circle 410 and the second circle 430. Since the first circle 410 is movably disposed between the press mounting seat 100 and the rolling body 420, and / or the second circle 430 is movably disposed between the rolling body 420 and the press head mounting seat 200, the rolling body 420 can roll between the first circle 410 and the second circle 430, thereby helping to reduce the friction of the relative movement of the first circle 410 and the second circle 430, and further helping to extend the service life of the first circle 410 and the second circle 430.

[0054] In addition, the rolling body 420 rolls between the first circle 410 and the second circle 430, and the friction resistance between the rolling body 420 and the first circle 410 and the second circle 430 is small, so that the rolling body 420 can guide the first circle 410 and the second circle 430 to move more easily and quickly. Moreover, there is no large friction resistance between the first circle 410 and the second circle 430 and the rolling body 420, thereby reducing the motion error and loss of the first circle 410 and the second circle 430, and then the first circle 410 and the second circle 430 can move in the direction and speed adjusted adaptively, so that the contained part 40 can be aligned with the containing part 30 more quickly. In this embodiment, the rolling body 420 can be a sphere, for example, the rolling body 420 can be a steel ball. In other embodiments, the rolling body 420 can be a cylindrical roller or a cylindrical roller, etc.

[0055] See also Figure 6 , Fig.10 and Fig.11In some embodiments, a limiting groove 401 is provided on one side of the first circle 410 facing the rolling body 420 or on one side of the second circle 430 facing the rolling body 420, and the rolling body 420 is partially located in the limiting groove 401. Specifically, the depth of the limiting groove 401 can be designed according to specific needs, so that when the rolling body 420 is displaced, the moving range of the rolling body 420 is limited to prevent the rolling body 420 from being separated from the bearing 400. Of course, the bearing 400 is a thrust ball bearing, and one of the bearing rings of the first circle 410 or the second circle 430 of the bearing 400 can be reversed to meet the requirement that the limiting groove 401 is provided on one side of the first circle 410 facing the rolling body 420 or on one side of the second circle 430 facing the rolling body 420. In this way, the limiting groove 401 can be formed by cleverly changing the installation position of the components of the bearing 400, thereby reducing the processing steps of the limiting groove 401 and making the operation more convenient.

[0056] In addition, the limiting groove 401 can prevent the rolling body 420 from excessively moving in the bearing 400. When the rolling body 420 is displaced by the force of the first circle 410 and / or the second circle 430, the displacement is limited within the moving range by the limiting groove 401, so that the rolling body 420 is always located between the first circle 410 and the second circle 430, thereby allowing the rolling body 420 to stably transfer the load between the first circle 410 and the second circle 430.

[0057] There are many options for the shape of the limiting groove 401. For example, in this embodiment, the groove wall of the limiting groove 401 may be an arc-shaped groove wall formed by inward concave. For another example, in other embodiments, the groove wall of the limiting groove 401 may be a trapezoidal groove wall formed by inward concave. Of course, the shape and size of the limiting groove 401 may be matched according to the corresponding part of the rolling body 420, so that the surface of the rolling body 420 can fit the groove wall of the limiting groove 401.

[0058] In some embodiments, the limiting groove 401 can be an annular limiting groove, that is, the limiting groove 401 can be roughly arranged around the connecting member 300, so that the rolling body 420 has a larger range of motion, so that the rolling body 420 can adjust the relative movement of the first circle 410 and the second circle 430 at different positions.

[0059] In addition, there can be multiple rolling bodies 420, and multiple rolling bodies 420 can be located in the limiting groove 401. Multiple rolling bodies 420 can be arranged around the connecting member 300 and arranged in sequence along the extension direction of the limiting groove 401, so that the relative movement of the first circle 410 and the second circle 430 is more stable, which in turn helps to improve the stability and reliability of the relative movement of the first circle 410 and the second circle 430.

[0060] See also Figure 6 , Fig. 9 and Fig.10 In some embodiments, the first inclined surface 201 may be provided on the side of the press head mounting seat 200 facing the second circle 430, and the first inclined surface 201 may be arranged around the connecting member 300. The second circle 430 may be provided on the side of the press head mounting seat 200 facing the second inclined surface 431, and the second inclined surface 431 may be arranged around the connecting member 300, and the second inclined surface 431 abuts against the first inclined surface 201.

[0061] Specifically, the inclination direction of the first inclined surface 201 and the inclination direction of the second inclined surface 431 can both be set to be inclined upward from the connecting member 300 to the direction away from the connecting member 300; or, the inclination direction of the first inclined surface 201 and the inclination direction of the second inclined surface 431 can both be set to be inclined downward from the connecting member 300 to the direction away from the connecting member 300. In this way, the second inclined surface 431 abuts against the first inclined surface 201, so that the pressure head mounting seat 200 and the second ring 430 can move relative to each other, which helps to increase the moving direction of the pressure head mounting seat 200, thereby helping to increase the adjustment direction of the contained member 40.

[0062] In addition, the second inclined surface 431 abuts against the first inclined surface 201, and the second inclined surface 431 and the first inclined surface 201 are both inclined, so that there is a larger contact area between the pressure head mounting seat 200 and the second circle 430, and the connection between the pressure head mounting seat 200 and the second circle 430 is relatively stable, which helps to ensure the stable transfer of the load, so that the contained part 40 can cooperate with the containing part 30 more smoothly.

[0063] See also Figure 6 , Fig. 9 and Fig.12 In some embodiments, the ram mounting seat 200 may be provided with a mounting through hole 202, and the connecting piece 300 may include a main body 310 and a head 320 connected to each other. The main body 310 may be fixedly connected to the press mounting seat 100 and passed through the mounting through hole 202. The press mounting seat 100, the mounting through hole 202 and the head 320 are distributed axially along the bearing 400 in sequence. The maximum outer diameter of the head 320 is greater than the inner diameter of the mounting through hole 202, so that the head 320 can limit the ram mounting seat 200, thereby preventing the ram mounting seat 200 from falling off the connecting piece 300 when the ram floating mechanism 10 is in the initial state, thereby facilitating the ram mounting seat 200 to move between the head 320 and the press mounting seat 100, so as to ensure that the contained part 40 floats relative to the containing part 30.

[0064] There is a gap between the main body 310 and the pressure head mounting seat 200 along the radial direction of the bearing 400, so that the pressure head mounting seat 200 can be movably connected to the connecting member 300, so that the pressure head mounting seat 200 can move along the radial direction of the bearing 400, and facilitate the pressure head mounting seat 200 to swing relative to the main body 310, thereby helping the pressure head mounting seat 200 to drive the contained member 40 to float adaptively in different directions.

[0065] In some embodiments, the radial clearance between the main body 310 and the pressure head mounting seat 200 along the bearing 400 is 0.5 mm to 1.5 mm. The radial clearance between the main body 310 and the pressure head mounting seat 200 along the bearing 400 may be, but is not limited to, 0.5 mm, 0.6 mm, 0.7 mm, 0.8 mm, 0.9 mm, 1.0 mm, 1.1 mm, 1.2 mm, 1.3 mm, 1.4 mm or 1.5 mm, etc. In this way, the radial clearance between the main body 310 and the pressure head mounting seat 200 along the bearing 400 is within the above range, so that the pressure head mounting seat 200 can be deflected within a suitable range, so as to drive the contained part 40 to perform adaptive adjustment relative to the containing part 30 within a suitable range.

[0066] Please continue reading Figure 6 , Fig. 9 and Fig.12 In some embodiments, the pressure head mounting seat 200 may be provided with a third inclined surface 203 on one side facing the head 320, and the third inclined surface 203 is arranged around the connecting member 300. The head 320 may be provided with a fourth inclined surface 321 on one side facing the third inclined surface 203, and the fourth inclined surface 321 is arranged around the connecting member 300, and the fourth inclined surface 321 cooperates with the third inclined surface 203.

[0067] Specifically, the inclination direction of the third inclined surface 203 can be set to be inclined upward from the direction of the pressure head mounting seat 200 to the main body 310, and correspondingly, the inclination direction of the fourth inclined surface 321 can be set to be inclined downward from the main body 310 to the pressure head mounting seat 200. In this way, when the pressure head floating mechanism 10 is in the initial state, the third inclined surface 203 and the fourth inclined surface 321 are in contact, so that it is convenient to theoretically align the contained part 40 and the containing part 30 before press-fitting, that is, the axis of the contained part 40 coincides with the axis of the mounting hole 30a of the containing part 30. When the pressure head floating mechanism 10 is in the floating state, the third inclined surface 203 and the fourth inclined surface 321 are spaced apart, and the pressure head mounting seat 200 can move relative to the head 320, thereby facilitating the pressure head mounting seat 200 to float relative to the press mounting seat 100.

[0068] In some embodiments, a groove 204 may be provided on one side of the press mounting seat 200 away from the press mounting seat 100, and the groove 204 may be connected to the mounting through hole 202, and the third inclined surface 203 and the head 320 may be located in the groove 204. Specifically, the head 320 may be received in the groove 204, so that the structure of the press floating mechanism 10 is more compact. In addition, the head 320 is received in the groove 204, which can reduce the risk of interference between the connector 300 and the press assembly 800. Moreover, the groove 204 may be connected to the mounting through hole 202, so as to facilitate the processing of the head 320.

[0069] See also Figure 6 and Fig.12 In some embodiments, the main body 310 may include a first sub-connector 311 and a second sub-connector 312, and the first sub-connector 311 is fixed to the press mounting base 100. For example, the first connector 300 may be threadedly connected to the press mounting base 100; for another example, the first connector 300 may be welded to the press mounting base 100.

[0070] The second sub-connector 312 is connected to the first sub-connector 311 and the head 320, wherein the second sub-connector 312 can be connected to the first sub-connector 311 by threaded connection, plug connection, etc., and the second connector 300 can be connected to the head 320 by threaded connection, plug connection, etc. In other embodiments, the second connector 300 can be integrally formed with the head 320, thereby helping to improve the connection strength between the second sub-connector 312 and the head 320 and saving assembly steps.

[0071] The body 310 may further include at least one gasket 313 detachably positioned between the press mount 100 and the second sub-connector 312 .

[0072] Specifically, the gasket 313 can abut against the press mounting seat 100 and the second sub-connector 312. When the ram floating mechanism 10 is in the initial state, the third inclined surface 203 abuts against the fourth inclined surface 321. In this way, the connector 300 can adjust the contact degree between the third inclined surface 203 and the fourth inclined surface 321 when the ram floating mechanism 10 is in the initial state by the number or thickness of the gaskets 313, thereby helping to reduce the machining accuracy of the third inclined surface 203 and the fourth inclined surface 321, and the cost is low. In addition, when the ram floating mechanism 10 is in the initial state, the first circle 410 can have a gap with the press mounting seat 100, so that the connector 300 can also adjust the gap between the first circle 410 and the press mounting seat 100 by the number or thickness of the gaskets 313, and the structure is relatively simple and the operation is relatively convenient.

[0073] See also Figures 5 to 8In some embodiments, the press head floating mechanism 10 may further include an elastic member 500 , the press mounting seat 100 may be provided with a mounting groove 101 , the elastic member 500 may be located in the mounting groove 101 and abut against a side of the first circle 410 away from the second circle 430 .

[0074] Specifically, the elastic member 500 may be a spring plunger or a hollow rubber cylinder, one end of the elastic member 500 may abut against the press mounting seat 100 or the press assembly 700, and the other end of the elastic member 500 may abut against the side of the first circle 410 away from the second circle 430. In this way, when the ram floating mechanism 10 is in a floating state, the first circle 410 may abut against the press mounting seat 100; when the ram floating mechanism 10 is in an initial state, the first circle 410 may have a gap with the press mounting seat 100 under the action of its own gravity and the action of the elastic member 500, so that the first circle 410 has a movable gap.

[0075] In addition, when the pressure head floating mechanism 10 is in the initial state, the third inclined surface 203 abuts against the fourth inclined surface 321. Since one end of the elastic member 500 abuts against the press mounting seat 100 or the press assembly 700, the other end of the elastic member 500 can abut against the side of the second circle 430 away from the second circle 430. Therefore, the third inclined surface 203 of the pressure head mounting seat 200 can be in close contact with the fourth inclined surface 321 under the action of the elastic member 500, so that the axis of the pressure head mounting seat 200 can be parallel to the vertical direction without the action of its own gravity, which in turn helps the axis of the contained component 40 to be parallel to the vertical direction without the action of its own gravity, so as to ensure that the initial position of the contained component 40 is placed correctly, and the cost is low, the precision is high, and the installation and adjustment are simple.

[0076] In some embodiments, there may be a plurality of elastic members 500 , and the plurality of elastic members 500 may be arranged at intervals around the connecting member 300 , so that the force applied to the second circle 430 is more uniform.

[0077] When the pressure head floating mechanism 10 is in the initial state, it is also more conducive to the third inclined surface 203 of the pressure head mounting seat 200 to be in close contact with the fourth inclined surface 321 under the action of the elastic member 500, thereby making it easier for the axis of the axis of the pressure head mounting seat 200 to be parallel to the vertical direction without the need for its own gravity, and further helping the axis of the contained component 40 to be parallel to the vertical direction without the need for its own gravity, so as to ensure that the initial position of the contained component 40 is placed correctly.

[0078] See also Figures 5 to 7In some embodiments, the pressure head floating mechanism 10 may further include a fixing member 600, which may be fixedly connected to the press mounting seat 100, and the press mounting seat 200 may be movably connected to the fixing member 600. Specifically, the fixing member 600 may be an isopause screw, and one end of the fixing member 600 may be connected to the press mounting seat 100, for example, the fixing member 600 may be threadedly connected to the press mounting seat 100. The other end of the fixing member 600 may be movably connected to the fixing member 600, for example, the press mounting seat 100 may be provided with a fixing through hole, the fixing member 600 may be inserted into the fixing through hole, and the end of the fixing member 600 away from the press mounting seat 100 may limit the press mounting seat 100, so that the press mounting seat 200 may be movably connected to the fixing member 600. In this way, when the ram floating mechanism 10 is in the initial state, the ram mounting seat 200 can abut against the end of the fixing member 600 away from the press mounting seat 100, thereby limiting the position of the ram mounting seat 200. When the ram floating mechanism 10 is in the floating state, there is a gap between the ram mounting seat 200 and the end of the fixing member 600 away from the press mounting seat 100, thereby facilitating the ram mounting seat 200 to float.

[0079] Based on the above implementation, Figure 6 As shown, when the ram floating mechanism 10 is in the initial state, the servo press 710 of the press assembly 700 is not working, and the ram mounting seat 200 is not subjected to a vertical upward force. At this time, the third inclined surface 203 of the ram mounting seat 200 can abut against the fourth inclined surface 321 under the action of the ram mounting seat 200, the bearing 400 and the elastic member 500, so that the ram mounting seat 200, the press mounting seat 100 and the connecting member 300 can be adaptively concentric, thereby helping to meet the theoretical alignment of the contained part 40 on the ram assembly 800 in the initial state and the mounting hole 30a of the containing part 30 of the first sub-frame 910.

[0080] like Figure 7 As shown, when the ram floating mechanism 10 is in a floating state, the ram mounting seat 200 receives a vertical upward press reaction force, and the elastic member 500 is compressed at this time, and the ram mounting seat 200 moves upward together with the bearing 400. When the first circle 410 of the bearing 400 contacts the press mounting seat 100, the third inclined surface 203 of the ram mounting seat 200 is spaced from the fourth inclined surface 321 of the head 320. At this time, the center of the ram mounting seat 200 can float in a certain area around the center of the connecting member 300, and since the contained member 40 is relatively fixed to the ram mounting seat 200, the contained member 40 can also float, thereby achieving the requirement of accurate alignment of the contained member 40 and the containing member 30 during the press-fitting process of the press-fitting device 20, and avoiding the problem of non-concentricity and unqualified interference between the mounting holes 30a of the contained member 40 and the containing member 30 caused by the positioning error of the press-fitting device 20.

[0081] In the present invention, unless otherwise clearly specified or limited, the terms "installation", "connection" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, an integral connection, or a transmission connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0082] In addition, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as a specific reference or special structure. The description of the term "some embodiments" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In the present invention, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine the different embodiments or examples described in the present invention and the features of the different embodiments or examples without contradiction.

[0083] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention, and should all be included in the protection scope of the present invention.

Claims

1. A pressure head floating mechanism, characterized in that: include: Press mounting base; Pressure head mounting seat; A connecting piece, the connecting piece is fixedly connected to the press mounting seat, and the press head mounting seat is movably arranged on the connecting piece; as well as A bearing, wherein the bearing is located between the press mounting seat and the press head mounting seat, the connecting member is provided through the bearing along the axial direction of the bearing, the bearing comprises a first ring, a rolling element and a second ring which are sequentially distributed along the axial direction of the bearing, the first ring is opposite to the press mounting seat, and the second ring is opposite to the press head mounting seat; The first ring is movably arranged between the press mounting seat and the rolling body, and / or the second ring is movably arranged between the rolling body and the press head mounting seat.

2. The pressure head floating mechanism according to claim 1, characterized in that: A limiting groove is provided on a side of the first circle facing the rolling body or a side of the second circle facing the rolling body, and the rolling body is partially located in the limiting groove.

3. The pressure head floating mechanism according to claim 2, characterized in that: The limiting groove is an annular limiting groove.

4. The pressure head floating mechanism according to claim 2, characterized in that: A first inclined surface is provided on one side of the pressure head mounting seat facing the second circle, and the first inclined surface is arranged around the connecting member; A second inclined surface is provided on a side of the second circle facing the pressure head mounting seat. The second inclined surface is arranged around the connecting member, and the second inclined surface abuts against the first inclined surface.

5. The pressure head floating mechanism according to any one of claims 1 to 4, characterized in that: The pressure head mounting seat is provided with a mounting through hole, and the connecting piece includes a main body and a head connected to each other. The main body is fixedly connected to the press mounting seat and penetrates the mounting through hole. The press mounting seat, the mounting through hole and the head are distributed along the axial direction of the bearing in sequence. The maximum outer diameter of the head is larger than the inner diameter of the mounting through hole, and there is a gap between the main body and the pressure head mounting seat along the radial direction of the bearing.

6. The pressure head floating mechanism according to claim 5, characterized in that: A clearance between the main body and the pressure head mounting seat along the radial direction of the bearing is 0.5 mm to 1.5 mm.

7. The pressure head floating mechanism according to claim 5, characterized in that: A third inclined surface is provided on one side of the pressure head mounting seat facing the head, and the third inclined surface is arranged around the connecting member; A fourth inclined surface is provided on a side of the head facing the third inclined surface. The fourth inclined surface is arranged around the connecting member and matches with the third inclined surface.

8. The pressure head floating mechanism according to claim 7, characterized in that: A groove is provided on a side of the pressure head mounting seat away from the press mounting seat, the groove is connected to the mounting through hole, and the third inclined surface and the head are both located in the groove.

9. The pressure head floating mechanism according to claim 7, characterized in that: The main body includes a first sub-connector, a second sub-connector and at least one gasket, the first sub-connector is fixed to the press mounting seat, the second sub-connector is connected to the first sub-connector and the head, and at least one gasket is detachably located between the press mounting seat and the second sub-connector.

10. The pressure head floating mechanism according to claim 1, characterized in that: The press head floating mechanism also includes an elastic member, the press mounting seat is provided with a mounting groove, the elastic member is located in the mounting groove and abuts against a side of the first circle away from the second circle.

11. The pressure head floating mechanism according to claim 10, characterized in that: There are multiple elastic members, and the multiple elastic members are arranged at intervals around the connecting member.

12. The pressure head floating mechanism according to claim 1, characterized in that: The pressure head floating mechanism also includes a fixing member, which is fixedly connected to the press mounting seat, and the pressure head mounting seat is movably connected to the fixing member.

13. A press-fitting device, characterized in that: include: Press components; Press head assembly; as well as According to the ram floating mechanism according to any one of claims 1 to 12, the press mounting seat is mounted on the press assembly, and the ram assembly is mounted on the ram mounting seat.

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