Press-in structure and bushing press-in device

Abstract

The present application is applicable to the field of bushing assembly technology, and discloses a press-in structure and bushing press-in device, wherein the press-in structure comprises a transmission shaft, a transmission member, a first assembly seat, a second assembly seat and a connecting mechanism, wherein one end of the transmission shaft is used to connect a driving device, the transmission member is sleeved on the transmission shaft, and is connected to the transmission shaft in a transmission manner so as to move along the axial direction of the transmission shaft under the action of the transmission shaft; the first assembly seat is connected to the other end of the transmission shaft, and the first assembly seat and the second assembly seat are arranged at intervals in the axial direction of the transmission shaft, and the space between the two is used to place the bushing and the workpiece; one end of the connecting mechanism is connected to the transmission member, and the other end of the connecting mechanism is connected to the second assembly seat; the connecting mechanism is used to drive the second assembly seat to move in a direction close to the first assembly seat along the axial direction of the transmission shaft under the action of the transmission member so as to press the bushing into the mounting hole. The press-in structure of this embodiment can save assembly time and reduce the bushing damage rate.

Description

Technical Field

[0001] The present application relates to the technical field of bushing assembly, and in particular to a press-in structure and a bushing press-in device. Background Art

[0002] In the related art, when the bushing is assembled with an interference fit into the inner hole of the workpiece, the bushing cannot be pressed directly into the inner hole of the workpiece manually because the size of the bushing is larger than the inner diameter of the inner hole of the workpiece. Instead, a hammer is used to hit the bushing to press the bushing into the inner hole of the workpiece. However, this method is time-consuming and easily damages the bushing. Utility Model Content

[0003] The purpose of the present application is to provide a press-in structure, which aims to solve the technical problems in the related art that the bushing and the inner hole of the workpiece are time-consuming and easily damaged during assembly.

[0004] To achieve the above objectives, the solution provided by this application is:

[0005] A press-in structure for fitting a bushing into a mounting hole of a workpiece, the press-in structure comprising a transmission shaft, a transmission member, a first assembly seat, a second assembly seat and a connecting mechanism, one end of the transmission shaft being used to connect to a driving device;

[0006] The transmission member is sleeved on the transmission shaft and is in transmission connection with the transmission shaft so as to move along the axial direction of the transmission shaft under the action of the transmission shaft;

[0007] The first assembly seat is connected to the other end of the transmission shaft. In the axial direction of the transmission shaft, the first assembly seat and the second assembly seat are spaced apart, and the bushing and the workpiece are placed therebetween.

[0008] One end of the connecting mechanism is connected to the transmission member, and the other end of the connecting mechanism is connected to the second assembly seat; the connecting mechanism is used to drive the second assembly seat to move toward the first assembly seat along the axial direction of the transmission shaft under the action of the transmission member, so as to press the bushing into the mounting hole.

[0009] The present application also provides a bushing pressing device, which includes a driving device and the above-mentioned pressing structure, and the driving device is driven to connect to the transmission shaft to drive the transmission shaft to rotate.

[0010] The press-in structure provided by this application has the following beneficial effects:

[0011] In this embodiment, the press-in structure includes a transmission shaft, a transmission member, a first assembly seat, a second assembly seat and a connecting mechanism. The transmission shaft can transmit the rotational power provided by the driving device to the transmission member. The transmission shaft also has a linear guiding function to guide the transmission member to move back and forth in a straight line along the axial direction of the transmission shaft, so that the connecting mechanism drives the second assembly seat to move closer to the first assembly seat under the drive of the transmission member.

[0012] In this way, when assembling the bushing and the workpiece, the bushing and the workpiece are placed between the first assembly seat and the second assembly seat, and one of the first assembly seat and the second assembly seat is against the side of the workpiece away from the bushing, and the other is against the side of the bushing away from the workpiece, so that after the bushing and the mounting hole are connected along the axial direction of the transmission shaft, the second assembly seat can be moved along the axial direction of the transmission shaft toward the direction close to the first assembly seat, pressing the bushing into the mounting hole of the workpiece to achieve an interference fit between the bushing and the mounting hole.

[0013] In this embodiment, during the process of the second assembly seat pressing the bushing into the mounting hole, it moves along the axial direction of the transmission shaft, which can increase the fit between the workpiece and the bushing and improve the assembly accuracy of the bushing and the workpiece. Compared with the method of using a hammer to hit the bushing to press the bushing into the mounting hole of the workpiece, it can save assembly time and reduce the bushing damage rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0015] Figure 1 Schematic diagram of the structure of the bushing pressing device provided in an embodiment of the present application;

[0016] Figure 2 Schematic diagram of the structure of the press-in structure provided in the embodiment of the present application;

[0017] Figure 3 is a schematic diagram of an exploded structure of a press-in structure provided in an embodiment of the present application from a first perspective;

[0018] Figure 4 is a schematic diagram of the exploded structure of the press-in structure provided in an embodiment of the present application at a second viewing angle;

[0019] Figure 5 yes Figure 4 A local enlarged schematic diagram of point a in the middle;

[0020] Figure 6is a schematic diagram of an exploded structure of the press-in structure provided in an embodiment of the present application from a third perspective;

[0021] Figure 7 yes Figure 6 A partial enlarged schematic diagram of point b in the middle;

[0022] Figure 8 This is a partial structural diagram of the press-in structure provided in an embodiment of the present application;

[0023] Figure 9 yes Figure 8 Schematic diagram of the cross-sectional structure along the AA direction;

[0024] Figure 10 yes Figure 9 A partial enlarged schematic diagram of point c in the middle.

[0025] Description of Figure Numbers:

[0026] 1. Press-in structure; 2. Bushing press-in device;

[0027] 10. Transmission shaft; 11. First connecting hole;

[0028] 20. Transmission member; 21. First transmission portion; 211. First corner portion; 22. Second transmission portion; 23. First via hole;

[0029] 30. First assembly seat; 31. First through hole; 311. First hole section; 312. Second hole section; 313. First step end surface; 32. First assembly portion; 33. Second assembly portion;

[0030] 40. Second assembly seat; 41. Third assembly portion; 42. Fourth assembly portion; 43. Second through hole; 431. Third hole section; 432. Fourth hole section; 433. Second step end surface;

[0031] 50. Connecting mechanism; 51. Main bracket; 511. Connecting groove; 52. First bracket; 53. Second bracket; 531. First arm; 532. Second arm; 533. Arc-shaped portion; 54. Guide member; 541. First guide portion; 5411. Second corner portion; 542. Second guide portion; 543. Second via hole;

[0032] 60. First clamping member; 61. First clamping portion; 62. First clamping body;

[0033] 70. Second clamping member; 71. Second clamping portion; 72. Second clamping body;

[0034] 80. Limiting member; 81. Third via hole;

[0035] 90. Adjustment portion; 91. Adjustment hole;

[0036] 201. Driving device; 2011. Grip. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0038] It should be noted that all directional indications in the embodiments of the present application (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship and movement status between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0039] It should also be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or indirectly connected to the other element through an intervening element.

[0040] In addition, the descriptions of "first", "second", etc. in this application are for descriptive purposes only and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0041] like Figure 1 As shown, the pressing structure 1 provided in the embodiment of the present application can be applied to a bushing pressing device 2 such as a bushing pressing machine, and is used to press the bushing (not shown) into the mounting hole of the workpiece (not shown) to achieve an interference fit between the bushing and the mounting hole.

[0042] like Figure 1 and Figure 2As shown, the press-in structure 1 provided in the embodiment of the present application is used to assemble the bushing in the mounting hole of the workpiece, which includes a transmission shaft 10, a transmission member 20, a first assembly seat 30, a second assembly seat 40 and a connecting mechanism 50. One end of the transmission shaft 10 is used to connect the driving device 201 to rotate under the drive of the driving device 201; the transmission member 20 is sleeved on the transmission shaft 10 and is transmission-connected to the transmission shaft 10 so as to move along the axial direction of the transmission shaft 10 under the action of the transmission shaft 10; the first assembly seat 30 is connected to the other end of the transmission shaft 10, and in the axial direction of the transmission shaft 10, the first assembly seat 30 and the second assembly seat 40 are spaced apart, and the bushing and the workpiece are placed therebetween; one end of the connecting mechanism 50 is connected to the transmission member 20, and the other end of the connecting mechanism 50 is connected to the second assembly seat 40; the connecting mechanism 50 is used to drive the second assembly seat 40 to move in a direction close to the first assembly seat 30 along the axial direction of the transmission shaft 10 under the action of the transmission member 20, so as to press the bushing into the mounting hole.

[0043] In the present embodiment, the press-in structure 1 comprises a transmission shaft 10, a transmission member 20, a first assembly seat 30, a second assembly seat 40 and a connecting mechanism 50. One end of the transmission shaft 10 can be used to connect the drive device 201 of the bushing press-in device 2. The other end of the transmission shaft 10 is connected to the first assembly seat 30, so that the drive device 201 can drive the transmission shaft 10 to rotate, and the transmission shaft 10 can drive the first assembly seat 30 to rotate. The transmission member 20 is sleeved on the transmission shaft 10. The transmission shaft 10 can also transmit the rotational power provided by the drive device 201 to the transmission member 20. The transmission shaft 10 also has a linear guide effect to guide the transmission member 20 to move back and forth along the axial direction of the transmission shaft 10. Moreover, when the transmission member 20 moves on the transmission shaft 10, it can drive the connecting mechanism 50 to move back and forth along the axial direction of the transmission shaft 10, thereby driving the second assembly seat 40 along the axial direction of the transmission shaft 10, moving in a direction close to the first assembly seat 30, or moving in a direction away from the first assembly seat 30.

[0044] In this way, when assembling the bushing and the workpiece, the bushing and the workpiece can be placed side by side between the first assembly seat 30 and the second assembly seat 40, and the bushing and the mounting hole can be docked along the axial direction of the transmission shaft 10. In the axial direction of the transmission shaft 10, one of the first assembly seat 30 and the second assembly seat 40 is against the side of the workpiece away from the bushing, and the other is against the side of the bushing away from the workpiece, that is, the workpiece can be placed close to the first assembly seat 30 or the second assembly seat 40. When the workpiece is placed close to the first assembly seat 30, the bushing is placed close to the second assembly seat 40. In this case, the first assembly seat 30 is against the side of the workpiece away from the bushing, and the second assembly seat 40 is against the side of the bushing away from the workpiece. After the bushing and the mounting hole are connected along the axial direction of the transmission shaft 10, the transmission shaft 10 rotates under the drive of the driving device 201, and the transmission member 20 can move along the axial direction of the transmission shaft 10, thereby driving the connecting mechanism 50 to move along the axial direction of the transmission shaft 10, and then driving the second assembly seat 40 to move along the axial direction of the transmission shaft 10 toward the first assembly seat 30, pressing the bushing into the mounting hole of the workpiece to achieve an interference fit between the bushing and the mounting hole.

[0045] In this embodiment, the second assembly seat 40 moves along the axial direction of the transmission shaft 10 during the process of pressing the bushing into the mounting hole, thereby increasing the fit between the workpiece and the bushing and improving the assembly accuracy of the bushing and the workpiece. Compared with the method of using a hammer to strike the bushing to press the bushing into the mounting hole of the workpiece, this method can save assembly time and reduce the bushing damage rate. In this embodiment, the workpiece and the bushing are placed between the first assembly seat 30 and the second assembly seat 40, and in the axial direction of the transmission shaft 10, one of the first assembly seat 30 and the second assembly seat 40 is against the side of the workpiece away from the bushing, and the other is against the side of the bushing away from the workpiece, which helps to increase the fit between the workpiece and the bushing.

[0046] like Figure 2 As shown, in some embodiments, the first assembly seat 30 is detachably connected to the transmission shaft 10, and the second assembly seat 40 is detachably connected to the connecting mechanism 50, so that the corresponding first assembly seat 30 and second assembly seat 40 can be replaced according to different bushings.

[0047] like Figure 2 and Figure 3 As shown, in some embodiments, the press-in structure 1 further includes a first connecting member (not shown). A first connecting hole 11 is provided at one end of the transmission shaft 10 facing the second assembly seat 40. The first connecting member connects the first assembly seat 30 and the first connecting hole 11 along the axial direction of the transmission shaft 10 to connect the first assembly seat 30 to the transmission shaft 10. In this embodiment, the first connecting member connects the first assembly seat 30 and the transmission shaft 10, simplifying the connection between the first assembly seat 30 and the transmission shaft 10. In some embodiments, the first connecting member is a half-thread screw, and the second assembly seat 40 is rotatable relative to the transmission shaft 10.

[0048] like Figure 4 and Figure 5 As shown, combined with Figures 8 to 10 In some embodiments, the first assembly seat 30 is provided with a first through hole 31. The first through hole 31 includes a first hole section 311 and a second hole section 312. The first hole section 311 and the second hole section 312 are sequentially connected along the axis of the transmission shaft 10. The diameter of the first hole section 311 is larger than the diameter of the second hole section 312. Thus, a first stepped end surface 313 is formed at the intersection of the first hole section 311 and the second hole section 312. The first connecting member includes a first connecting portion and a second connecting portion. The first connecting portion and the second connecting portion are sequentially connected along the axis of the transmission shaft 10. The diameter of the first connecting portion is larger than the diameter of the second connecting portion. The first connecting portion is received in the first hole section 311 and presses against the first stepped end surface 313 formed at the intersection of the first hole section 311 and the second hole section 312. A portion of the second connecting portion is received in the second hole section 312, and another portion of the second connecting portion is connected to the first connecting hole 11, so that the first assembly seat 30 can rotate relative to the transmission shaft 10.

[0049] In this embodiment, the first connecting member includes a first connecting portion and a second connecting portion connected in sequence along the same axis, the first connecting portion is accommodated in the first hole section 311 of the first assembly seat 30, the outer diameter of the first connecting portion is smaller than the inner diameter of the first hole section 311, the first connecting portion is pressed against the first step end face 313 along the axial direction of the transmission shaft 10, so that the first assembly seat 30 can rotate relative to the first connecting portion, a part of the second connecting portion is accommodated in the second hole section 312 of the first assembly seat 30, the outer diameter of the second connecting portion is smaller than the inner diameter of the second hole section 312, so that the first assembly seat 30 can rotate relative to the second connecting portion, the other part of the second connecting portion is connected to the first connecting hole 11, for example, the other part of the second connecting portion is threadedly connected to the first connecting hole 11, so that the first connecting member can be fixed on the transmission shaft 10, the first assembly seat 30 can rotate relative to the first connecting member, so that the first assembly seat 30 can rotate relative to the transmission shaft 10.

[0050] like Figure 6 and Figure 7As shown, in some embodiments, the first assembly seat 30 includes a first assembly portion 32 and a second assembly portion 33, the first assembly portion 32 is located on a side of the second assembly portion 33 away from the transmission shaft 10, and the first assembly portion 32 and the second assembly portion 33 are connected in sequence along the axis of the transmission shaft 10, so that when the first assembly portion 32 abuts against the workpiece or bushing, the first assembly seat 30 can effectively guide the workpiece or bushing to be placed along the axial direction of the transmission shaft 10, so that when the bushing is pressed into the workpiece, the bushing can be pressed into the mounting hole of the workpiece along the axial direction of the transmission shaft 10, thereby improving the assembly accuracy of the bushing and the workpiece. The first through hole 31 passes through the first assembly portion 32 and the second assembly portion 33, and along the axial direction of the transmission shaft 10, the first assembly portion 32 is used to swing relative to the transmission shaft 10 toward the end of the second assembly seat 40 under the action of an external force, so that the angle of the first assembly seat 30 can be adjusted in the axial direction of the transmission shaft 10, thereby improving the adaptability of the first assembly seat 30 to the workpiece or bushing. In some embodiments, the outer diameter of the first assembly portion 32 is greater than the outer diameter of the second assembly portion 33 , and a surface of the first assembly portion 32 away from the transmission shaft 10 can abut against a workpiece or a bushing.

[0051] like Figure 3 As shown, in some embodiments, the connecting mechanism 50 includes a main bracket 51, a first bracket 52 and a second bracket 53. In the axial direction of the transmission shaft 10, the first bracket 52 and the second bracket 53 are respectively connected to the two ends of the main bracket 51, the end of the first bracket 52 away from the main bracket 51 is connected to the transmission member 20, and the end of the second bracket 53 away from the main bracket 51 is connected to the second assembly seat 40; at the same time, the main bracket 51 extends along the axial direction of the transmission shaft 10, the first bracket 52 extends along the radial direction of the transmission shaft 10, a part of the second bracket 53 extends along the axial direction of the transmission shaft 10, and the other part of the second bracket 53 extends along the radial direction of the transmission shaft 10, so that along the radial direction of the transmission shaft 10, the connecting mechanism 50 as a whole is arranged side by side with the transmission shaft 10. In this way, when the transmission member 20 moves along the axial direction of the transmission shaft 10, it can drive the connecting mechanism 50 to move along the axial direction of the transmission shaft 10 as a whole, so that the second assembly seat 40 can follow the connecting mechanism 50 to move along the axial direction of the transmission shaft 10, which can ensure that the second assembly seat 40 is pressed against the bushing or workpiece along the axial direction of the transmission shaft 10, and further ensure that the bushing can enter the mounting hole of the workpiece along the axial direction of the transmission shaft 10, thereby improving the assembly accuracy of the bushing and the workpiece and reducing the bushing damage rate.

[0052] like Figure 2 、 Figure 3 and Figure 4As shown, in some embodiments, the transmission member 20 includes a first transmission portion 21 and a second transmission portion 22 sequentially connected along the axial direction of the transmission shaft 10, simplifying the structure of the transmission member 20. The first transmission portion 21 is located on a side of the second transmission portion 22 close to the second assembly seat 40, and the end of the first bracket 52 away from the main bracket 51 is connected to the first transmission portion 21, so that the connecting mechanism 50 can move along the axial direction of the transmission shaft 10 under the drive of the transmission member 20. In some embodiments, the transmission member 20 is provided with a first through hole 23 that passes through the first transmission portion 21 and the second transmission portion 22, the transmission shaft 10 is passed through the first through hole 23, and a first thread (not shown) is provided in the first through hole 23. The outer circumferential surface of the transmission shaft 10 is provided with a second thread (not shown) adapted to be connected to the first thread, so that the transmission member 20 and the transmission shaft 10 are connected in a transmission manner.

[0053] like Figure 2 、 Figure 3 and Figure 4 As shown, in some embodiments, the press-in structure 1 also includes a first clamping member 60 arranged around the outer periphery of the transmission member 20, which can improve the connection stability between the first clamping member 60 and the transmission member 20. The first clamping member 60 has two first clamping parts 61, and the two first clamping parts 61 are arranged opposite to each other along the radial direction of the transmission shaft 10. The two first clamping parts 61 cooperate to clamp the end of the first bracket 52 away from the main bracket 51 to improve the connection stability between the first bracket 52 and the transmission member 20. In some embodiments, the first clamping member 60 has a first clamping body 62, which surrounds the outer periphery of the first transmission part 21 along the circumference of the transmission shaft 10 to fix the first transmission part 21 in the first clamping body 62. The two first clamping parts 61 are connected to the clamping body, and the space between the two first clamping parts 61 is connected to the space surrounded by the first clamping bodies 62. This helps to ensure that the end of the first bracket 52 away from the main bracket 51 can be against the first transmission part 21 when assembling the transmission part 20 and the first bracket 52, thereby improving the connection stability between the first bracket 52 and the transmission part 20. In some embodiments, a first fixing member (not shown) passes through the first clamping part 61 and the first bracket 52 to fix the first clamping part 61 and the first bracket 52, thereby improving the connection stability between the first bracket 52 and the first clamping member 60. For example, the first fixing member can be a screw.

[0054] like Figure 2 、 Figure 3 and Figure 4As shown, in some embodiments, the transmission member 20 is a transmission block, and the first transmission portion 21 is block-shaped and has four first corner portions 211. The four first corner portions 211 are arranged around the circumference of the transmission shaft 10. The end of the first bracket 52 away from the main bracket 51 abuts against the first corner portion 211 at the top of the transmission member 20. In the radial direction of the transmission shaft 10, the surface of the first clamping body 62 away from the first assembly seat 30 presses against the second transmission portion 22. In this way, the second transmission portion 22 can, to a certain extent, limit the movement of the second clamping body 72 in the direction away from the transmission shaft 10.

[0055] like Figure 2 、 Figure 3 and Figure 4 As shown, in some embodiments, the connecting mechanism 50 further includes a guide member 54. Along the radial direction of the transmission shaft 10, one end of the second bracket 53 away from the main bracket 51 is connected to the outer peripheral side of the guide member 54. In this way, when the second bracket 53 moves along the axial direction of the transmission shaft 10, it can drive the guide member 54 to move along the axial direction of the transmission shaft 10. Moreover, along the axial direction of the transmission shaft 10, the second assembly seat 40 is connected to the side of the guide member 54 facing the transmission shaft 10. In this way, the guide member 54 can guide the second assembly seat 40 to move along the axial direction of the transmission shaft 10 under the drive of the second bracket 53, so that the second assembly seat 40 can press the bushing into the mounting hole along the axial direction of the transmission shaft 10. Combined with Figure 5 In some embodiments, the second assembly seat 40 includes a third assembly portion 41 and a fourth assembly portion 42, the third assembly portion 41 is located on the side of the fourth assembly portion 42 away from the transmission shaft 10, and the third assembly portion 41 and the fourth assembly portion 42 are connected in sequence along the axis of the transmission shaft 10, so that when the fourth assembly portion 42 is against the workpiece or the bushing, the second assembly seat 40 can effectively guide the workpiece or the bushing to be placed along the axial direction of the transmission shaft 10. In this way, in the process of pressing the bushing into the workpiece, the bushing can be pressed into the mounting hole of the workpiece along the axial direction of the transmission shaft 10, thereby improving the assembly accuracy of the bushing and the workpiece.

[0056] like Figure 2 、 Figure 3 and Figure 4 As shown, in some embodiments, the press-in structure 1 also includes a second clamping member 70, which is arranged to surround the outer periphery of the guide member 54, thereby improving the connection stability between the second clamping member 70 and the guide member 54. The second clamping member 70 has two second clamping portions 71, and the two second clamping portions 71 are arranged opposite to each other along the radial direction of the transmission shaft 10. The two second clamping portions 71 cooperate to clamp the end of the second bracket 53 away from the main bracket 51, thereby improving the connection stability between the second bracket 53 and the guide member 54.

[0057] like Figure 2 、 Figure 3 and Figure 4As shown, in some embodiments, the guide member 54 includes a first guide portion 541 and a second guide portion 542. In the axial direction of the transmission shaft 10, the first guide portion 541 is connected to the side of the second guide portion 542 away from the transmission shaft 10. The second clamping member 70 has a second clamping body 72. The second clamping body 72 surrounds the outer periphery of the first guide portion 541 along the circumference of the transmission shaft 10 to fix the first guide portion 541 in the second clamping body 72. The two second clamping portions 71 are connected to the second clamping body 72. The space between the two second clamping portions 71 is connected to the space surrounded by the second clamping body 72, which helps when assembling the guide member 54 and the second bracket 53. The end of the second bracket 53 away from the main bracket 51 can be against the first guide portion 541, thereby improving the connection stability between the second bracket 53 and the guide member 54.

[0058] like Figure 2 、 Figure 3 and Figure 4 As shown, combined with Figure 6 In some embodiments, the guide member 54 is a transmission block. The first guide portion 541 is block-shaped and has four second corner portions 5411. The four second corner portions 5411 are arranged around the circumference of the transmission shaft 10. The end of the second bracket 53 away from the main bracket 51 abuts against the second corner portion 5411 located at the top of the guide member 54. In some embodiments, in the radial direction of the transmission shaft 10, the surface of the second clamping body 72 close to the transmission shaft 10 presses against the second guide portion 542, which can limit the second clamping body 72 from moving in the direction closer to the transmission shaft 10. At the same time, the press-in structure 1 also includes a limit member 80. The surface of the second clamping body 72 away from the transmission shaft 10 presses against the limit member 80, which can limit the second clamping body 72 from moving in the direction away from the transmission shaft 10. Therefore, the limit member 80 and the second guide portion 542 cooperate to limit the axial movement of the second clamping body 72 along the transmission shaft 10, thereby improving the assembly stability of the second clamping member 70.

[0059] like Figure 2 、 Figure 3 and Figure 4 As shown, combined with Figure 6 and Figure 7 In some embodiments, the press-fit structure 1 further includes a second connecting member (not shown), which is sequentially arranged along the axial direction of the transmission shaft 10 to connect the second assembly seat 40 and the guide member 54 to achieve assembly of the second assembly seat 40 and the guide member 54. In some embodiments, the second assembly seat 40 is provided with a second through hole 43, and the guide member 54 is provided with a second through hole 543. The second connecting member is arranged to connect the second through hole 43 and the second through hole 543 to secure the second assembly seat 40 to the guide member 54.

[0060] like Figure 6 and Figure 7As shown, combined with Figures 8 to 10 In some embodiments, the second through hole 43 includes a third hole segment 431 and a fourth hole segment 432, which are sequentially connected along the axis of the transmission shaft 10. The diameter of the third hole segment 431 is larger than that of the fourth hole segment 432, thereby forming a second stepped end surface 433 between the third hole segment 431 and the fourth hole segment 432. The second connecting member includes a third connecting portion and a fourth connecting portion sequentially connected along the axis of the transmission shaft 10. The fourth connecting portion is sequentially passed through and fixed to the fourth hole segment 432 and the second through hole 543. The third connecting portion is located within the third hole segment 431 and presses against the second stepped end surface 433 along the axial direction of the transmission shaft 10. In some embodiments, the stopper 80 is provided with a third through hole 81 passed through and fixed by the second connecting member.

[0061] like Figure 3 and Figure 4 As shown, in some embodiments, both the main bracket 51 and the second bracket 53 are provided with an adjustment portion 90. The position at which the adjustment portion 90 of the main bracket 51 is connected to the adjustment portion 90 of the second bracket 53 is adjustable to adjust the position at which the second bracket 53 is mounted on the main bracket 51. In this embodiment, the position at which the second bracket 53 is connected to the main bracket 51 is adjustable. This allows the specific position at which the second bracket 53 is mounted on the main bracket 51 to be adjusted based on the specific dimensions of the workpiece and the bushing along the axial direction of the transmission shaft 10, and the initial spacing between the first assembly seat 30 and the second assembly seat 40 to be adjusted to accommodate workpieces of different sizes.

[0062] like Figure 2 、 Figure 3 and Figure 4 As shown, in some embodiments, the second bracket 53 includes a first arm 531 and a second arm 532, the first arm 531 and the second arm 532 being connected at an angle, the first arm 531 extending along the axial direction of the transmission shaft 10, the first arm 531 being provided with an adjustment portion 90, and the second arm 532 being connected to the second assembly seat 40 at one end away from the first arm 531. In this embodiment, the position at which the first arm 531 is connected to the main bracket 51 is adjustable, and the main bracket 51 can drive the first arm 531 to move axially along the transmission shaft 10, thereby driving the second arm 532 to move axially along the transmission shaft 10, and further driving the second assembly seat 40 to move axially along the transmission shaft 10.

[0063] like Figure 2 、 Figure 3 and Figure 4 As shown, combined with Figure 6In some embodiments, the end of the second arm 532 away from the first arm 531 is connected to the second corner portion 5411 at the top of the guide member 54 and is clamped and fixed by the two second clamping portions 71. In some embodiments, the second arm 532 extends radially along the transmission shaft 10. The second bracket 53 further includes an arcuate portion 533 for connecting the first arm 531 and the second arm 532. The center of the arcuate portion 533 is located on the side of the arcuate portion 533 facing the transmission shaft 10. The first arm 531, the arcuate portion 533, and the second arm 532 are integrally formed and connected to improve the structural stability of the second bracket 53.

[0064] like Figure 4 and Figure 6 As shown, in some embodiments, the main bracket 51 is provided with a connecting groove 511, and the second bracket 53 extends into the connecting groove 511 along the axial direction of the transmission shaft 10, so that a portion of the second bracket 53 can be encircled within the main bracket 51, thereby improving the connection stability between the second bracket 53 and the main bracket 51. The second bracket 53 can move relative to the main bracket 51 along the axial direction of the transmission shaft 10. That is, the second bracket 53 can slide into or out of the connecting groove 511 along the axial direction of the transmission shaft 10 to change the connection position of the second bracket 53 with the main bracket 51. The adjustment portion 90 includes a plurality of adjustment holes 91, and at least two adjustment holes 91 of the main bracket 51 are installed in a one-to-one correspondence with at least two adjustment holes 91 of the second bracket 53. In this embodiment, the second bracket 53 can be moved according to the specific size of the workpiece in the axial direction of the transmission shaft 10, so that the second bracket 53 moves within the connecting groove 511, thereby changing the connection position of the second bracket 53 with the main bracket 51. Exemplarily, the adjustment holes 91 are circular holes.

[0065] For example, according to the size of the workpiece, when it is necessary to increase the distance between the first assembly seat 30 and the second assembly seat 40, the second bracket 53 can be adjusted to move away from the main bracket 51. In this case, a small number of adjustment holes 91 on the second bracket 53 (specifically, the first arm 531) are installed in a one-to-one correspondence with a small number of adjustment holes 91 on the main bracket 51. For example, assuming that the number of adjustment holes 91 on the second bracket 53 and the main bracket 51 are both fourteen, in this case, the six adjustment holes 91 on the second bracket 53 are installed in a one-to-one correspondence with the six adjustment holes 91 on the main bracket 51. This embodiment does not specifically limit the number of adjustment holes 91. When it is necessary to reduce the distance between the first assembly seat 30 and the second assembly seat 40, the second bracket 53 can be adjusted to move closer to the main bracket 51. In this case, the majority of adjustment holes 91 on the second bracket 53 are installed in a one-to-one correspondence with the majority of adjustment holes 91 on the main bracket 51. In this case, the eight adjustment holes 91 on the second bracket 53 are installed in a one-to-one correspondence with the eight adjustment holes 91 on the main bracket 51. This embodiment does not specifically limit the number of adjustment holes 91.

[0066] like Figure 1As shown, this embodiment further provides a bushing pressing device 2, which includes a driving device 201 and the above-mentioned pressing structure 1. The driving device 201 is driven and connected to the transmission shaft 10 to drive the transmission shaft 10 to rotate.

[0067] The bushing pressing device 2 of this embodiment is provided with a driving device 201 to provide driving force for the transmission shaft 10. Since it uses the above-mentioned pressing structure 1, it can increase the adaptability between the workpiece and the bushing and improve the assembly accuracy of the bushing and the workpiece. Compared with the method of using a hammer to hit the bushing to press the bushing into the mounting hole of the workpiece, it can save assembly time and reduce the bushing damage rate.

[0068] like Figure 1 As shown, in some embodiments, the driving device 201 can be an existing device such as a hand drill or an electric wrench to provide rotational power to the transmission shaft 10. In some embodiments, the driving device 201 has a gripping portion 2011 for being gripped by a human hand, so that when using the bushing pressing device 2, the operator can directly grip the driving device 201. Furthermore, the gripping portion 2011 can be a handle.

[0069] The above description is only a preferred embodiment of the present application and does not limit the patent scope of the present application. All equivalent structural transformations made based on the contents of the present application specification and drawings, or direct / indirect application in other related technical fields, are included in the patent protection scope of the present application.

Claims

1. A press-fit structure for fitting a bushing into a mounting hole of a workpiece, characterized in that: The press-in structure comprises a transmission shaft, a transmission member, a first assembly seat, a second assembly seat and a connecting mechanism, and one end of the transmission shaft is used to connect the driving device; The transmission member is sleeved on the transmission shaft and is in transmission connection with the transmission shaft so as to move along the axial direction of the transmission shaft under the action of the transmission shaft; The first assembly seat is connected to the other end of the transmission shaft. In the axial direction of the transmission shaft, the first assembly seat and the second assembly seat are spaced apart, and the bushing and the workpiece are placed between the first assembly seat and the second assembly seat. One end of the connecting mechanism is connected to the transmission member, and the other end of the connecting mechanism is connected to the second assembly seat; the connecting mechanism is used to drive the second assembly seat to move toward the first assembly seat along the axial direction of the transmission shaft under the action of the transmission member, so as to press the bushing into the mounting hole.

2. The press-in structure according to claim 1, characterized in that: The press-in structure further comprises a first connecting member, and a first connecting hole is provided at one end of the transmission shaft facing the second assembly seat; Along the axial direction of the transmission shaft, the first connecting member is respectively connected to the first assembly seat and the first connecting hole to connect the first assembly seat to the transmission shaft.

3. The press-in structure according to claim 2, characterized in that: The first assembly seat is provided with a first through hole, the first through hole includes a first hole segment and a second hole segment, the first hole segment and the second hole segment are sequentially connected along the axis of the transmission shaft, and the aperture of the first hole segment is larger than the aperture of the second hole segment; The first connecting member includes a first connecting portion and a second connecting portion, the first connecting portion and the second connecting portion are sequentially connected along the axis of the transmission shaft, and the diameter of the first connecting portion is greater than the diameter of the second connecting portion; The first connecting portion is accommodated in the first hole segment and is pressed against a first step end surface formed at the junction of the first hole segment and the second hole segment; a portion of the second connecting portion is accommodated in the second hole segment, and another portion of the second connecting portion is connected to the first connecting hole, so that the first assembly seat can rotate relative to the transmission shaft.

4. The press-in structure according to any one of claims 1 to 3, characterized in that: The connecting mechanism comprises a main bracket, a first bracket and a second bracket, wherein the main bracket extends in the axial direction of the transmission shaft, the first bracket extends in the radial direction of the transmission shaft, a part of the second bracket extends in the axial direction of the transmission shaft, and another part of the second bracket extends in the radial direction of the transmission shaft, and in the axial direction of the transmission shaft, the first bracket and the second bracket are respectively connected to two ends of the main bracket; One end of the first bracket away from the main bracket is connected to the transmission member, and one end of the second bracket away from the main bracket is connected to the second assembly seat.

5. The press-in structure according to claim 4, characterized in that: The transmission member comprises a first transmission part and a second transmission part connected in sequence along the axial direction of the transmission shaft, the first transmission part is located on a side of the second transmission part close to the second assembly seat, and an end of the first bracket away from the main bracket is connected to the first transmission part; and / or, The press-in structure also includes a first clamping member arranged around the outer circumference of the transmission member, the first clamping member has two first clamping parts, the two first clamping parts are arranged opposite to each other along the radial direction of the transmission shaft, and the two first clamping parts cooperate to clamp the end of the first bracket away from the main bracket.

6. The press-in structure according to claim 4, characterized in that: The connecting mechanism also includes a guide member. Along the radial direction of the transmission shaft, one end of the second bracket away from the main bracket is connected to the outer peripheral side of the guide member. Along the axial direction of the transmission shaft, the second assembly seat is connected to a side of the guide member facing the transmission shaft.

7. The press-in structure according to claim 6, characterized in that: The press-in structure further includes a second clamping member, the second clamping member is arranged around the outer circumference of the guide member, the second clamping member has two second clamping parts, the two second clamping parts are arranged opposite to each other along the radial direction of the transmission shaft, and the two second clamping parts cooperate to clamp the end of the second bracket away from the main bracket; and / or, The press-in structure further comprises a second connecting member, which is sequentially penetrated along the axial direction of the transmission shaft and connected with the second assembly seat and the guide member.

8. The press-in structure according to claim 4, characterized in that: The main bracket and the second bracket are both provided with an adjustment part, and the position where the adjustment part of the main bracket is connected to the adjustment part of the second bracket is adjustable to adjust the position where the second bracket is installed on the main bracket.

9. The press-in structure according to claim 8, characterized in that: The second bracket includes a first arm and a second arm, the first arm and the second arm are connected at an angle, the first arm extends along the axial direction of the transmission shaft, the first arm is provided with the adjustment portion, and the second arm is connected to the second assembly seat at one end away from the first arm; and / or, The main bracket is provided with a connecting groove, and the second bracket extends into the connecting groove along the axial direction of the transmission shaft and can be moved relative to the main bracket along the axial direction of the transmission shaft to change the connection position of the second bracket and the main bracket, and the adjustment part includes a plurality of adjustment holes, and at least two adjustment holes of the main bracket are installed in a one-to-one correspondence with at least two adjustment holes of the second bracket.

10. A bushing pressing device, characterized in that: It comprises a driving device and a pressing structure according to any one of claims 1 to 9, wherein the driving device is drivingly connected to the transmission shaft to drive the transmission shaft to rotate.

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