Bushing assembly equipment

Abstract

The invention relates to the technical field of automobile assembly, and provides bushing assembly equipment which comprises a first pressure device, a second pressure device and a support. A mounting table is formed on the support; the first pressure device and the second pressure device are correspondingly arranged on the mounting table, a telescopic first pressure head is arranged at the end, facing the second pressure device, of the first pressure device, and a telescopic second pressure head corresponding to the first pressure head is arranged at the end, facing the first pressure device, of the second pressure device. A mandrel through hole is formed in the second pressure head, a telescopic expanding mandrel coaxial with the mandrel through hole is arranged on the second pressure device, and an expanding part is formed on the expanding mandrel, so that a flange is formed through extrusion of the second pressure head on the bushing, and the bushing can be prevented from being loosened from a mounting lug of a workpiece due to long-term vibration; and the stability of workpiece installation is improved.

Description

Technical Field

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

[0002] In the prior art, since the assembly of electronic devices in the automotive electronics industry is faced with the requirement of lightweight, the shells of most workpieces are made of plastic, and the corresponding mounting ears of the workpieces are also made of plastic. In order to achieve long-term fastening reliability, it is often necessary to embed bushings in the mounting ears of the workpieces. Since the torque bearing capacity of the plastic parts themselves is low, the bushings and mounting ears assembled by the traditional press-fitting method make the bushings and the mounting holes opened on the mounting ears have an interference fit. However, during the vibration process, the above-mentioned bushings are prone to deformation, and then gradually loosen from the mounting ears of the workpiece, thereby affecting the stability of the workpiece. Summary of the invention

[0003] In order to solve the above technical problems, the present application provides a bushing assembly device.

[0004] A bushing assembly device provided in the present application includes: a first pressure device, a second pressure device and a support; a mounting platform is formed on the support; the first pressure device and the second pressure device are correspondingly arranged on the mounting platform, a retractable first pressure head is arranged on the first pressure device at one end facing the second pressure device, a retractable second pressure head corresponding to the first pressure head is arranged on the second pressure device at one end facing the first pressure device, a spindle through hole is opened on the second pressure head, a retractable expansion spindle is arranged on the second pressure device coaxially with the spindle through hole, and an expansion support portion is formed on the expansion spindle at one end facing the first pressure head.

[0005] Optionally, the second pressure device includes a driving mechanism, and the driving mechanism is threadedly connected to the expansion spindle.

[0006] Optionally, the driving mechanism includes a motor and a coupling, and the motor is transmission-connected to the coupling to drive the coupling to rotate forward or reverse, and a transmission part is provided at one end of the coupling facing the expanded spindle; a transmission fitting part is formed on the outer periphery of one end of the expanded spindle facing the coupling, and the transmission part is sleeved outside the transmission fitting part, and the transmission part is threadedly transmission-connected to the transmission fitting part.

[0007] Optionally, an annular elastic member is provided on a side of the second pressing head facing the first pressing head, and an abutting portion abutting against the annular elastic member is provided on an outer periphery of the second pressing head.

[0008] Optionally, a threaded portion is formed on the outer periphery of the expanded mandrel, and a threaded fitting portion is formed on the inner wall of the mandrel through hole, and the threaded portions are drivingly connected to each other.

[0009] Optionally, a stop platform is formed on the outer periphery of the expansion mandrel at one end of the threaded portion facing away from the expansion portion.

[0010] Optionally, a thrust bearing is provided on a side of the stop platform facing the second pressure head.

[0011] Optionally, a forming groove is formed on a side of the second pressing head facing the first pressing head.

[0012] Optionally, the expansion portion is disposed toward one end of the first pressing head and gradually expands in diameter in a direction away from the first pressing head.

[0013] Optionally, a clamping device is provided on the mounting platform, and the mounting opening is located at one side of the clamping device.

[0014] Optionally, the first pressure device comprises a cylinder, and a telescopic end of the cylinder is connected to the first pressure head.

[0015] Optionally, a mounting opening is provided on the mounting platform, and the orthographic projections of the first pressing head and the second pressing head on the mounting platform both fall into the mounting opening.

[0016] Optionally, the first pressure head, the second pressure head and the expansion mandrel are coaxially arranged.

[0017] Compared with the prior art, the technical solution provided by the embodiments of the present application has the following advantages:

[0018] The bushing assembly equipment provided in the embodiment of the present application is configured to respectively arrange a first pressure device and a second pressure device on both sides of the mounting platform of the support, so that the first pressure head of the first pressure device and the second pressure head of the second pressure device can respectively abut against the two ends of the bushing arranged at the mounting port, wherein the first pressure head can press the bushing into the assembly hole opened on the mounting ear of the workpiece, and the first pressure head can abut against the flange flange at one end of the bushing to keep the bushing in a preset position; by opening a spindle through hole on the second pressure head, and arranging a retractable expanded spindle on the end of the second pressure device facing the first pressure head, the expanded support portion of the expanded spindle can pass through the second pressure head and be sleeved on the bushing, thereby expanding the bushing, so that the second pressure head can extrude the flange flange on the other end of the bushing, thereby connecting the bushing to the mounting ear of the workpiece through the flange flanges at both ends of the bushing, which can prevent the bushing from loosening from the mounting ear of the workpiece due to long-term vibration, thereby improving the stability of the workpiece installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0021] Figure 1 It is a schematic diagram of the bushing assembly equipment described in the embodiment of the present application;

[0022] Figure 2 This is a schematic diagram of the first pressure device in an embodiment of the present application;

[0023] Figure 3 This is a schematic diagram of the second pressure device in an embodiment of the present application;

[0024] Figure 4 This is a partial schematic diagram of the second pressure device in an embodiment of the present application.

[0025] Reference numerals:

[0026] 1. First pressure device; 11. Cylinder; 12. First pressure head; 13. Support member; 2. Clamping device; 3. Second pressure device; 33. Annular elastic member; 34. Second pressure head; 341. Abutment portion; 342. Threaded fitting portion; 35. Thrust bearing; 36. Expanded spindle; 361. Threaded portion; 362. Stop platform; 363. Expanded support portion; 37. Coupling; 38. Output shaft; 39. Motor; 4. Support; 5. Workpiece; 6. Bushing. DETAILED DESCRIPTION

[0027] In order to more clearly understand the above-mentioned purposes, features and advantages of the present application, the scheme of the present application will be further described below. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0028] In the following description, many specific details are set forth to facilitate a full understanding of the present application, but the present application may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only part of the embodiments of the present application, rather than all of the embodiments.

[0029] Combination Figures 1 to 3As shown, the embodiment of the present application provides a bushing 6 assembly device, including: a first pressure device 1, a second pressure device 3 and a support 4; a mounting platform is formed on the support 4, and the mounting platform is suitable for arranging a workpiece 5 and a bushing 6; the first pressure device 1 and the second pressure device 3 are correspondingly arranged on the mounting platform, and a first pressure head 12 which is retractable relative to the mounting port is arranged on the end of the first pressure device 1 facing the mounting platform, and the first pressure head 12 is used to abut against the end of the bushing 6 facing the first pressure head 12, and a flange flange is formed on the end of the bushing 6 facing the first pressure head 12, and the above-mentioned flange flange can be either integral with the bushing 6 The molding can also be extruded by the first ram 12. A retractable second ram 34 opposite to the mounting port is arranged on the second pressure device 3 at one end facing the mounting platform. The orthographic projection of the bushing 6 in the direction toward the first ram 12 falls on the first ram 12. The orthographic projection of the bushing 6 in the direction toward the second ram 34 falls on the second ram 34. A spindle through hole is opened on the second ram 34. A retractable expansion spindle 36 is arranged coaxially with the spindle through hole on the second pressure device 3. In addition, the expansion spindle 36 and the bushing 6 are also coaxially arranged, and an expansion support portion 363 is formed on the end of the expansion spindle 36 facing the first ram 12. It should be noted that the above-mentioned second ram 34 and expansion spindle 36 can be driven by the same power output mechanism or by different power output mechanisms respectively; illustratively, the second ram 34 and expansion spindle 36 can be driven by the same motor 39 or by two motors 39 respectively, or one of the second ram 34 and expansion spindle 36 can be driven by the motor 39 and the other can be driven by the cylinder 11.

[0030] The bushing 6 assembly equipment of this embodiment is provided with a first pressure device 1 and a second pressure device 3 on both sides of the mounting platform of the support 4, so that the first pressure head 12 of the first pressure device 1 and the second pressure head 34 of the second pressure device 3 can respectively abut against the two ends of the bushing 6 arranged at the mounting opening, wherein the first pressure head 12 can press the bushing 6 into the assembly hole opened on the mounting ear of the workpiece 5, and the first pressure head 12 can abut against the flange flange at one end of the bushing 6 to keep the bushing 6 in a preset position; by opening a center hole on the second pressure head 34 The shaft is provided with a through hole, and a retractable expansion spindle 36 is arranged at one end of the second pressure device 3 facing the first pressure head 12, so that the expansion support portion 363 of the expansion spindle 36 can pass through the second pressure head 34 and be connected with the bushing 6, thereby expanding the bushing 6, so that the second pressure head 34 can extrude a flange on the other end of the bushing 6, thereby connecting the bushing 6 to the mounting ears of the workpiece 5 through the flanges at both ends of the bushing 6, which can prevent the bushing 6 from loosening from the mounting ears of the workpiece 5 due to long-term vibration, thereby improving the stability of the installation of the workpiece 5.

[0031] In some embodiments, the second pressure device 3 includes a driving mechanism, which is threadedly connected to the expansion spindle 36. Specifically, the driving mechanism may be provided with a screw for outputting power, and the expansion spindle 36 may be provided with a nut for transmission connection with the screw. Alternatively, the power output end of the driving mechanism and the expansion spindle 36 may be provided with a threaded structure that can cooperate with each other. By setting the above-mentioned threaded transmission, the expansion spindle 36 can be extended and retracted through the forward and reverse rotation of the driving mechanism. In addition, the above-mentioned transmission structure is simple, rotates smoothly, and has low noise, which can reduce the production cost of the whole machine and improve the stability of the assembly.

[0032] In some more detailed embodiments, the driving mechanism includes a motor 39 and a coupling 37, and the motor 39 is connected to the coupling 37 in a transmission manner to drive the coupling 37 to rotate forward or reversely. A transmission portion is provided at one end of the coupling 37 facing the expanded spindle 36; a transmission fitting portion is formed on the outer periphery of the end of the expanded spindle 36 facing the coupling 37, and the transmission portion is sleeved outside the transmission fitting portion, and the transmission portion and the transmission fitting portion are threadedly connected in a transmission manner. By providing the coupling 37, a transmission connection between the output shaft 38 of the motor 39 and the expanded spindle 36 can be achieved. Furthermore, the coupling 37 can further provide overload protection for the expanded spindle 36, as well as the bushing 6 and the workpiece 5; by providing the transmission portion of the coupling 37 to be sleeved on the expanded spindle 36, a stable transmission connection between the coupling 37 and the expanded spindle 36 can be achieved, and installation space can be saved.

[0033] In some optional embodiments, such as Figure 4 As shown, an annular elastic member 33 is provided on the side of the second pressing head 34 facing the first pressing head 12. The above-mentioned annular elastic member 33 can be a spring, a rubber ring, a silicone ring, etc. The annular mouth of the annular elastic member 33 is directly opposite to the spindle through hole, thereby forming an avoidance for the expansion spindle 36 to avoid the interference of the annular elastic member 33 with the movement of the expansion spindle. An abutment portion 341 abutting against the annular elastic member 33 is provided on the outer periphery of the second pressing head 34. The annular elastic member 33 can form a buffer between the second pressing head 34 and the mounting ears of the workpiece 5. When the expansion spindle 36 expands and moves, the annular mouth and the mounting ears at both ends of the second pressing head 34 are enclosed to form an expansion space; when the expansion spindle 36 completes the expansion of the end of the bushing 6, the second pressing head 34 rises to squeeze the annular elastic member 33 onto the outer periphery of the second pressing head 34 to avoid the annular elastic member 33 interfering with the extrusion molding of the second pressing head 34.

[0034] In more detail, a threaded portion 361 is formed on the outer periphery of the expansion spindle 36, and a threaded fitting portion 342 is formed on the inner wall of the spindle through hole, and the threaded portion 361 is transmission-connected with the threaded fitting portion 342; illustratively, after the first pressing head 12 presses the bushing 6 into the mounting ear, the motor 39 rotates forward to push the expansion spindle 36 to move away from the motor 39, so that the expansion spindle 36 opens the bushing 6, and then the motor 39 reverses to move the expansion spindle 36 toward the motor 39, and at the same time, the threaded portion 361 on the outer periphery of the expansion spindle 36 pushes the second pressing head 34 to move toward the bushing 6 until the second pressing head 34 squeezes the bushing 6 to form a flange.

[0035] More specifically, at one end of the threaded portion 361 facing away from the expansion support portion 363, a stop platform 362 is formed on the outer periphery of the expansion spindle 36. The stop platform 362 is used to limit the relative position between the second pressure head 34 and the expansion spindle 36 to avoid the threaded fitting portion 342 on the inner wall of the spindle through hole and the threaded portion 361 on the outer periphery of the expansion spindle 36 from disengaging from each other. Optionally, the stop platform 362 can be arranged adjacent to the threaded portion 361, or a gap can be left between the threaded portion 361 and the stop platform 362 in the axial direction of the expansion spindle 36.

[0036] In some further embodiments, a thrust bearing 35 is provided on the side of the stop platform 362 facing the second pressure head 34. The thrust bearing 35 can protect the second pressure head 34 and the stop platform 362, thereby improving the service life of the expanded spindle 36 and the second pressure head 34 and the stability of axial movement.

[0037] In some embodiments, a molding groove is formed on the side of the second pressing head 34 facing the first pressing head 12 , and the molding groove is used to accommodate the extruded flange. By providing the molding groove, the molding of the flange can be made more precise.

[0038] Furthermore, the expansion portion 363 gradually expands in diameter toward one end of the first ram 12 in a direction away from the first ram 12, thereby forming a guide surface on the outer periphery of the expansion portion 363 toward one end of the first ram 12 to facilitate pressing the expansion portion 363 into the bushing 6. Exemplarily, the above-mentioned guide surface can be a conical structure.

[0039] In other embodiments, a clamping device 2 is provided on the mounting table, and the mounting port is located on one side of the clamping device 2. The clamping device 2 is used to fix the workpiece 5 on the mounting table to prevent the workpiece 5 from swinging when the first pressure device 1 and the second pressure device 3 are press-fitting the bushing 6, thereby avoiding damage to the bushing 6 and the mounting ear, thereby ensuring the accuracy of the installation of the bushing 6; by setting the mounting port on one side of the clamping device 2, interference between the clamping device 2 and the first pressure device 1 can be avoided.

[0040] Exemplarily, the first pressure device 1 includes a cylinder 11, the telescopic end of the cylinder 11 is connected to the first pressure head 12, and specifically, the cylinder 11 can be connected to the mounting platform through a support 13, the support 4 can be a frame structure, the top of the support 4 is provided with a mounting platform, the bottom of the support 4 is provided with a base plate, and legs are connected between the base plate and the top plate, and the second pressure device 3 can be installed on the base plate.

[0041] In some more detailed embodiments, a mounting opening is provided on the mounting table, a mounting ear of the workpiece 5 is arranged on the mounting opening, an assembly hole provided on the mounting ear is opposite to the mounting opening, a hollow structured bushing 6 is suitable for being inserted into the assembly hole, and the orthographic projections of the first pressure head 12 and the second pressure head 34 on the mounting table both fall into the mounting opening; specifically, the first pressure device 1 is arranged above the mounting table, and the second pressure device 3 is arranged below the mounting table, and the positions of the first pressure head 12 and the second pressure head 34 are correspondingly arranged on the upper and lower sides of the mounting opening, and during the assembly process, the bushing 6 can be coaxially arranged with the first pressure head 12 and the second pressure head 34.

[0042] In some embodiments, the first ram 12, the second ram 34 and the expanded mandrel 36 are coaxially arranged, and the above arrangement can optimize the pressure conduction path and reduce the size of the whole machine. In some embodiments, the first ram 12 is detachably connected to the first pressure device 1; in other embodiments, the second ram 34 and the expanded mandrel 36 are connected to the second pressure device 3, so that the device can adapt to bushings 6 and workpieces 5 of various sizes to expand the assembly range of the device.

[0043] In the description of the embodiments of the present application, it needs to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "height", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the structure or device referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present application.

[0044] It should be noted that, in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the term "comprising" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprising a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0045] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments described herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A bushing assembly device, characterized in that: include: A first pressure device, a second pressure device and a support; A mounting platform is formed on the support; the first pressure device and the second pressure device are correspondingly arranged on their respective mounting platforms, a retractable first pressure head is arranged on the first pressure device at one end facing the second pressure device, a retractable second pressure head corresponding to the first pressure head is arranged on the second pressure device at one end facing the first pressure device, a spindle through hole is opened on the second pressure head, a retractable expansion spindle is arranged coaxially with the spindle through hole on the second pressure device, and an expansion support portion is formed on the expansion spindle at one end facing the first pressure head.

2. The bushing assembly device according to claim 1, characterized in that: The second pressure device comprises a driving mechanism, and the driving mechanism is threadedly connected to the expansion spindle.

3. The bushing assembly device according to claim 2, characterized in that: The driving mechanism includes a motor and a coupling, and the motor is transmission-connected to the coupling to drive the coupling to rotate forward or reversely. A transmission part is provided at one end of the coupling facing the expanded spindle; a transmission fitting part is formed on the outer periphery of one end of the expanded spindle facing the coupling, and the transmission part is sleeved on the transmission fitting part, and the transmission part is threadedly transmission-connected to the transmission fitting part.

4. The bushing assembly device according to claim 3, characterized in that: An annular elastic member is disposed on a side of the second pressing head facing the first pressing head, and an abutting portion abutting against the annular elastic member is disposed on an outer periphery of the second pressing head.

5. The bushing assembly device according to claim 4, characterized in that: A threaded portion is formed on the outer periphery of the expanded mandrel, and a threaded fitting portion is formed on the inner wall of the mandrel through hole. The threaded portions are transmission-connected with each other.

6. The bushing assembly device according to claim 5, characterized in that: A stop platform is formed on the outer periphery of the expansion mandrel at one end of the threaded portion facing away from the expansion portion.

7. The bushing assembly apparatus according to claim 6, characterized in that: A thrust bearing is arranged on one side of the stop platform facing the second pressure head.

8. The bushing assembly apparatus according to claim 1, characterized in that: A forming groove is formed on a side of the second pressing head facing the first pressing head.

9. The bushing assembly apparatus according to claim 1, characterized in that: The expansion portion has one end facing the first pressing head and its diameter gradually increases in a direction away from the first pressing head.

10. The bushing assembly apparatus according to claim 1, characterized in that The mounting platform is provided with a clamping device, and the mounting opening is located at one side of the clamping device.

11. The bushing assembly apparatus according to claim 1, characterized in that: The first pressure device comprises a cylinder, and a telescopic end of the cylinder is connected to the first pressure head.

12. The bushing assembly apparatus according to claim 1, characterized in that: The mounting platform is provided with a mounting opening, and the orthographic projections of the first pressing head and the second pressing head on the mounting platform both fall into the mounting opening.

13. The bushing assembly device according to any one of claims 1 to 12, characterized in that: The first pressure head, the second pressure head and the expansion mandrel are coaxially arranged.

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