Pressing machine for pantograph bearing

Abstract

The utility model discloses a pantograph bearing press-fitting machine, which relates to the technical field of bearing press-fitting and is used for pressing a bearing into a lower arm rod of a pantograph, the lower arm rod comprises a main shaft, a long shaft and a short shaft, the long shaft and the short shaft are respectively and vertically connected to two ends of the main shaft, and the pantograph bearing press-fitting machine comprises a rack, a movable positioning mechanism and a press-fitting mechanism, a horizontal operation table is arranged at the top of the rack; the movable positioning mechanism is arranged on the horizontal operation table, is used for fixing the lower arm rod and comprises a first positioning mechanism and a second positioning mechanism which can move in the first direction and are arranged at an interval; the press-fitting mechanism is arranged on the horizontal operation table and comprises a first press-fitting module and a second press-fitting module which are located on the two sides of the first positioning mechanism in the first direction, and the first press-fitting module and the second press-fitting module can get close to each other and get away from each other in the first direction so that the bearing can be pressed into the long shaft and / or the short shaft in the first direction. And numerous unstable factors in the bearing press-fitting process are avoided in a mechanical pressing mode.

Description

Technical Field

[0001] The utility model relates to the technical field of bearing press-fitting, in particular to a pantograph bearing press-fitting machine. Background Art

[0002] During the manufacturing or maintenance of pantographs, the lower arm usually requires press-fit bearings. Currently, this is done manually by hammering with copper rods. The position accuracy, pressure requirements, bumps and scratches, and data recording involved in the assembly process cannot be effectively controlled, and the bearings and lower arm are easily damaged, making the lower arm unable to perform its due function in actual applications.

[0003] Therefore, how to press-fit the bearings using a press-fitting machine to avoid the numerous unstable factors in the process of manually pressing the bearings is a technical problem that those skilled in the art currently need to solve. Utility Model Content

[0004] The utility model aims to provide a pantograph bearing press-fitting machine, which avoids many unstable factors in the process of press-fitting bearings by means of machine pressing.

[0005] To achieve the above-mentioned purpose, the utility model provides a pantograph bearing press-fitting machine for pressing a bearing into a lower arm of a pantograph. The lower arm includes a main shaft, a long shaft, and a short shaft. The long shaft and the short shaft are respectively connected vertically to the two ends of the main shaft. The pantograph bearing press-fitting machine includes:

[0006] Frame with a horizontal operating table on top;

[0007] A movable positioning mechanism, provided on the horizontal operating platform and used to fix the lower arm, comprising a first positioning mechanism and a second positioning mechanism, both of which are movable in a first direction and spaced apart;

[0008] The press-fitting mechanism is arranged on a horizontal operating table and includes a first press-fitting module and a second press-fitting module located on both sides of the first positioning mechanism in the first direction. The first press-fitting module and the second press-fitting module can approach and move away from each other along the first direction to press the bearing into the long shaft and / or short shaft along the first direction.

[0009] Preferably, the first positioning mechanism comprises:

[0010] a first slide rail extending along a first direction;

[0011] a first sliding plate, slidably connected to the first sliding rail, and provided with a first positioning member for fixing the lower arm;

[0012] The clamping mechanism includes a vertical shaft connected to the first sliding plate and a horizontal shaft connected to one end of the vertical shaft away from the first sliding plate. The horizontal shaft can rotate around the vertical shaft axis to above the lower arm to limit the lower arm from separating from the first positioning member.

[0013] Preferably, the second positioning mechanism includes:

[0014] a second slide rail extending along the first direction;

[0015] The second sliding plate is slidably connected to the second sliding rail at the bottom. The second sliding plate is provided with a first vertical plate and two second vertical plates arranged at intervals. The first vertical plate is provided with a first groove adapted to the outer wall of the main shaft. The ends of the two second vertical plates facing away from the second sliding plate are both provided with second grooves adapted to the outer walls of the major axis and the minor axis.

[0016] Preferably, the mobile positioning mechanism further includes a third positioning mechanism, and the third positioning mechanism includes:

[0017] a third slide rail extending along a second direction, the second direction and the first direction being perpendicular to each other;

[0018] The third sliding plate is slidably connected to the third sliding rail, and the second sliding rail is arranged on the side of the third sliding plate away from the third sliding rail, so that when the third sliding plate moves along the second direction, it drives the second positioning mechanism to move along the second direction. The third sliding plate is provided with clamps at both ends in the first direction, and the clamps can abut against the third sliding rail to limit the relative movement of the third sliding plate and the third sliding rail.

[0019] Preferably, the first press-fitting module and the second press-fitting module are slidably connected to the first slide rail, the first press-fitting module is provided with a first press-fitting head, the second press-fitting module is provided with a second press-fitting head, and the first press-fitting head and the second press-fitting head are located on the side facing each other of the first press-fitting module and the second press-fitting module, the first press-fitting head is provided with a first positioning shaft for bearing positioning, the second press-fitting head is provided with a second positioning shaft for bearing positioning, and the first positioning shaft is detachable relative to the first press-fitting head.

[0020] Preferably, the first press-fitting module is connected to a power source, the first press-fitting module is connected to a position adjustment mechanism, and the power source and the position adjustment mechanism are located on the side opposite to the first press-fitting module and the second press-fitting module, the position adjustment mechanism can drive the second press-fitting head equipped with the bearing to move to a preset position, and the power source can drive the first press-fitting head equipped with the bearing to move close to the position adjustment mechanism so that the two bearings in the first direction are pressed into the long shaft or short shaft at the same time.

[0021] Preferably, the first positioning member includes:

[0022] A third vertical plate, having a third groove adapted to fit the outer wall of the main shaft at one end thereof facing away from the first sliding plate;

[0023] The two fourth vertical plates are each provided with a fourth groove adapted to the outer walls of the major axis and the minor axis at one end away from the first sliding plate. The two fourth vertical plates are spaced apart and are both perpendicular to the third vertical plate.

[0024] Preferably, both the first groove and the third groove are U-shaped structures, and both the second groove and the fourth groove are V-shaped structures.

[0025] Preferably, the horizontal operation table is further provided with a scale positioning mechanism extending in the second direction. One end of the third sliding plate in the first direction is further provided with a positioning pointer, and the positioning pointer is arranged above the scale positioning mechanism at intervals.

[0026] Compared with the above background art, the pantograph bearing press provided by the present utility model is used to press a bearing into the lower arm rod of a pantograph. The lower arm rod includes a main shaft, a long shaft and a short shaft. The long shaft and the short shaft are respectively vertically connected to both ends of the main shaft. The pantograph bearing press includes a frame, a moving positioning mechanism and a pressing mechanism. A horizontal operation table is provided at the top of the frame; the moving positioning mechanism is arranged on the horizontal operation table and is used to fix the lower arm rod, and includes a first positioning mechanism and a second positioning mechanism that can both move in the first direction and are arranged at intervals; the pressing mechanism is arranged on the horizontal operation table, and includes a first pressing module and a second pressing module located on both sides of the first positioning mechanism in the first direction. The first pressing module and the second pressing module can approach and move away from each other in the first direction to press the bearing into the long shaft and / or the short shaft in the first direction.

[0027] Specifically, a horizontal operation table is provided at the top of the frame. The lower arm rod to be pressed with a bearing is fixed by the first positioning mechanism and the second positioning mechanism arranged on the horizontal operation table at intervals. Then, the first pressing module and the second pressing module located on both sides of the first positioning mechanism in the first direction are installed with the bearings to be pressed. By the first pressing module and the second pressing module approaching each other in the first direction, the bearing is pressed into the long shaft or the short shaft located on the first positioning mechanism in the first direction. Then, the first pressing module and the second pressing module move away from each other, and the other one of the long shaft or the short shaft that has not been pressed with the bearing is placed on the first positioning mechanism for the first pressing module and the second pressing module that are again installed with bearings to approach each other and press the bearing. By means of machine pressing, many unstable factors in the process of pressing the bearing are avoided. Description of the Drawings

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained according to the provided drawings without creative efforts.

[0029] Figure 1 It is a schematic structural diagram of the pantograph bearing press provided by the embodiment of the present utility model;

[0030] Figure 2 It is Figure 1 the top view of

[0031] Figure 3 is the front view of Figure 1 ;

[0032] Figure 4 is the side view of Figure 1 ;

[0033] Figure 5 is the schematic structural view of the press-fitting mechanism provided by the embodiment of the present utility model;

[0034] Figure 6 is the schematic structural view of the press-fitting mechanism from another perspective provided by the embodiment of the present utility model;

[0035] Figure 7 is the schematic structural view of the second positioning mechanism and the third positioning mechanism provided by the embodiment of the present utility model;

[0036] Figure 8 is the schematic structural view of the second positioning mechanism and the third positioning mechanism from another perspective provided by the embodiment of the present utility model;

[0037] Figure 9 is the schematic diagram of the pressure changing with the position under the position control mode provided by the embodiment of the present utility model;

[0038] Figure 10 is the schematic diagram of the pressure changing with the position under the pressure control mode provided by the embodiment of the present utility model;

[0039] Figure 11 is the schematic diagram of the pressure changing with the position under the distance control mode provided by the embodiment of the present utility model;

[0040] Figure 12 is the schematic diagram of the pressure changing with the position under the equal-pressure distance control mode provided by the embodiment of the present utility model;

[0041] Figure 13 is the schematic diagram of the pressure changing with the position under the equal-pressure position control mode provided by the embodiment of the present utility model;

[0042] Figure 14 is the schematic diagram of the pressure changing with the position under the multiple mixed control modes provided by the embodiment of the present utility model;

[0043] Figure 15 is the schematic diagram of the press-fitting data summary provided by the embodiment of the present utility model.

[0044] Wherein:

[0045] 1 - lower arm rod, 11 - main shaft, 12 - long shaft, 13 - short shaft;

[0046] 2 - Frame, 21 - Horizontal operating table, 22 - Placing cabinet;

[0047] 31 - First slide rail, 32 - First sliding plate, 33 - First positioning member, 331 - Third vertical plate, 332 - Third groove, 34 - Pressing mechanism, 341 - Horizontal axis, 342 - Vertical axis;

[0048] 41 - Second slide rail, 42 - First vertical plate, 43 - Second vertical plate;

[0049] 511 - First pressing head, 512 - Power source, 521 - Second pressing head, 522 - Second positioning shaft, 523 - Position adjusting mechanism;

[0050] 61 - Third slide rail, 62 - Third sliding plate, 621 - Clamp, 622 - Positioning pointer;

[0051] 7 - Control system;

[0052] 8 - Touch screen. Detailed implementation manners

[0053] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0054] In order to enable those skilled in the art in the technical field to better understand the solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation manners.

[0055] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "top", "bottom", "length" and "short", etc. is the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the indicated position or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0056] The purpose of the present invention is to provide a pantograph bearing press, which avoids many unstable factors during the bearing pressing process through mechanical pressing.

[0057] It should be noted that in this embodiment, the direction of X in the accompanying drawings is defined as the first direction, and the direction of Y is defined as the second direction, and the first direction and the second direction are perpendicular to each other.

[0058] Please refer to Figures 1 to 4, To achieve the above object, the utility model provides a pantograph bearing press-fitting machine for press-fitting bearings into the lower arm rod 1 of a pantograph. The lower arm rod 1 includes a main shaft 11, a long shaft 12 and a short shaft 13. The long shaft 12 and the short shaft 13 are respectively vertically connected to both ends of the main shaft 11. The pantograph bearing press-fitting machine includes a frame 2, a moving and positioning mechanism and a press-fitting mechanism.

[0059] A horizontal operating table 21 is provided at the top of the frame 2. A storage cabinet 22 with a receiving space is also provided on the frame 2 and located at the bottom of the horizontal operating table 21. The receiving space of the storage cabinet 22 can facilitate the storage of the following moving and positioning mechanism and press-fitting mechanism when not in use, so as to reduce the space occupied by the entire pantograph bearing press-fitting machine. The storage cabinet 22 is integrally encapsulated with sealing plates and door panels around. The main body of the frame 2 is made of high-quality steel, processed after welding and integrally spray-painted, with stable and beautiful structure.

[0060] The moving and positioning mechanism is arranged on the horizontal operating table 21 and is used for fixing the lower arm rod 1, including a first positioning mechanism and a second positioning mechanism that can both move along the first direction and are arranged at intervals. Among them, when the first positioning mechanism fixes one of the long shaft 12 and the short shaft 13, the second positioning mechanism can be used for fixing the other one of the long shaft 12 and the short shaft 13, so that the first positioning mechanism and the second positioning mechanism can move synchronously along the first direction through the same lower arm rod 1.

[0061] The press-fitting mechanism is arranged on the horizontal operating table 21, including a first press-fitting module and a second press-fitting module located on both sides of the first positioning mechanism in the first direction. The first press-fitting module and the second press-fitting module can approach and move away from each other along the first direction to press the bearing placed on the first press-fitting module and the second press-fitting module into the long shaft 12 and / or the short shaft 13 along the first direction.

[0062] A horizontal operating table 21 is provided at the top of the frame 2. The lower arm rod 1 to be press-fitted with bearings is fixed by the first positioning mechanism and the second positioning mechanism arranged on the horizontal operating table 21 and at intervals. Then, the first press-fitting module and the second press-fitting module located on both sides of the first positioning mechanism in the first direction are installed with the bearings to be pressed. By the first press-fitting module and the second press-fitting module approaching each other along the first direction, the bearing is pressed into the long shaft 12 or the short shaft 13 located on the first positioning mechanism along the first direction. Then, the first press-fitting module and the second press-fitting module move away from each other, and the other one of the long shaft 12 or the short shaft 13 that has not been press-fitted with the bearing is placed on the first positioning mechanism for the first press-fitting module and the second press-fitting module with bearings installed again to approach each other and press in the bearing, avoiding many unstable factors in the process of press-fitting bearings by mechanical pressing.

[0063] Please refer to Figure 5 and Figure 6, in this embodiment, the first positioning mechanism includes a first slide rail 31, a first sliding plate 32 and a pressing mechanism 34. The first slide rail 31 extends along the first direction; the first sliding plate 32 is slidably connected to the first slide rail 31, and a first positioning member 33 for fixing the lower arm rod 1 is provided on the first sliding plate 32. Among them, the first positioning member 33 includes a third vertical plate 331 and two fourth vertical plates. A third groove 332 adapted to the outer wall of the main shaft 11 is provided at one end of the third vertical plate 331 facing away from the first sliding plate 32; fourth grooves adapted to the outer walls of the long shaft 12 and the short shaft 13 are provided at one end of the two fourth vertical plates facing away from the first sliding plate 32. The two fourth vertical plates are arranged at intervals and are both perpendicular to the third vertical plate 331. The fourth vertical plates and the third vertical plate 331 are used to adapt to the placement and limitation of the lower arm rod 1. The pressing mechanism 34 includes a vertical shaft 342 connected to the first sliding plate 32 and a horizontal shaft 341 connected to the end of the vertical shaft 342 facing away from the first sliding plate 32. The horizontal shaft 341 can rotate around the axis of the vertical shaft 342 to the upper side of the main shaft 11 of the lower arm rod 1 to limit the lower arm rod 1 from disengaging from the first positioning member 33 in the direction away from the first sliding plate 32.

[0064] Please refer to Figure 7 and Figure 8 , the second positioning mechanism includes a second slide rail 41 and a second sliding plate. The second slide rail 41 extends along the first direction; the bottom of the second sliding plate is slidably connected to the second slide rail 41. A first vertical plate 42 and two second vertical plates 43 arranged at intervals are provided on the second sliding plate. A first groove adapted to the outer wall of the main shaft 11 is provided on the first vertical plate 42. Second grooves adapted to the outer walls of the long shaft 12 and the short shaft 13 are provided at one end of the two second vertical plates 43 facing away from the second sliding plate. The first vertical plate 42 and the second vertical plates 43 are perpendicular to each other to facilitate positioning the lower arm rod 1 together with the third vertical plate 331 and the fourth vertical plates.

[0065] Among them, both the first groove and the third groove 332 are preferably of U-shaped structure, which is convenient for the main shaft 11 of the lower arm rod 1 to be placed. The second groove and the fourth groove are preferably of V-shaped structure, which is convenient for the long shaft 12 and the short shaft 13 of the lower arm rod 1 to be placed. Preferably, nylon blocks are locked on the contact surfaces of the first groove, the second groove, the third groove 332 and the fourth groove with the lower arm rod 1 to protect the paint surface of the lower arm rod 1 from being worn.

[0066] In another embodiment, considering that the lengths of the main shafts 11 in various size types of the lower arm rod 1 are different, the moving positioning mechanism further includes a third positioning mechanism. The third positioning mechanism includes a third slide rail 61 and a third slide plate 62. The third slide rail 61 extends along the second direction. The third slide plate 62 is slidably connected to the third slide rail 61. The second slide rail 41 is provided on the side of the third slide plate 62 facing away from the third slide rail 61, so that when the third slide plate 62 moves along the second direction, it drives the second positioning mechanism to move along the second direction, so as to change the distance between the first positioning mechanism and the second positioning mechanism in the second direction. Clamps 621 are provided at both ends of the third slide plate 62 in the first direction. The clamps 621 can abut against the third slide rail 61 to limit the relative movement between the third slide plate 62 and the third slide rail 61, and are used for bearing pressing of the selected specification of the lower arm rod 1. The horizontal operation table 21 is also provided with a scale positioning mechanism extending along the second direction. A positioning pointer 622 is also provided at one end of the third slide plate 62 in the first direction, and the positioning pointer 622 is spaced above the scale positioning mechanism. The scale positioning mechanism is specifically a scale steel ruler with scales. The pantograph with a known length can be quickly adjusted through identification or a manual.

[0067] In this embodiment, the first pressing module and the second pressing module are slidably connected to the first slide rail 31. The first pressing module is provided with a first pressing head 511, and the second pressing module is provided with a second pressing head 521. The first pressing head 511 and the second pressing head 521 are located on the opposite sides of the first pressing module and the second pressing module. The first pressing head 511 is provided with a first positioning shaft for bearing positioning. The second pressing head 521 is provided with a second positioning shaft 522 for bearing positioning. The first positioning shaft is detachable relative to the first pressing head 511. The first positioning shaft and the second positioning shaft 522 are integrally of an elastic structure and can be retracted into the first pressing head 511 and the second pressing head 521 during pressing, and automatically pop out after the bearing pressing is completed and reset, preparing for the next bearing pressing.

[0068] Among them, the first pressing module is connected to a power source 512, and the first pressing module is connected to a position adjusting mechanism 523. The power source 512 and the position adjusting mechanism 523 are located on the opposite sides of the first pressing module and the second pressing module. The position adjusting mechanism 523 can drive the second pressing head 521 equipped with a bearing to move to a preset position. The power source 512 can drive the first pressing head 511 equipped with a bearing to move closer to the position adjusting mechanism 523, so that two bearings in the first direction can be pressed into the long shaft 12 or the short shaft 13 at the same time.

[0069] The power source 512 adopts a servo press. Workers place the bearings on the first positioning shaft of the first pressing head 511 and the second positioning shaft 522 of the second pressing head 521 respectively. After the preparation work is completed, the pressing mechanism 34 is started to press the lower arm rod 1. The servo press drives the first pressing head 511 to perform pressing. When both the pressure and displacement reach the set parameters, the pressing is completed. After the pressing is completed, the first pressing head 511 and the second pressing head 521 move away from the lower arm rod 1. After manual inspection and confirmation, the other one of the long shaft 12 and the short shaft 13 that has not been pressed with a bearing is turned around for pressing. The function of the position adjustment mechanism 523 is to automatically move to the preset pressing position when switching the pressing of the long shaft 12 and the short shaft 13, ensuring that the second pressing head 521 serves as the fixed end during pressing. The pressing mechanism is equipped with a pressure sensor and a displacement sensor, which can detect the pressure magnitude and displacement change in real time. Usually, the pressure range is adjustable from 0 to 10000 N, the pressing stroke is adjustable from 0 to 200 mm, the resolution of the force measuring sensor is 10 N, and the measurement accuracy of pressure and displacement is ±0.5% FS.

[0070] Please refer to Figures 9 to 14 , for specific crimping positions and forces, a multi - control mode is used to control the process stroke, reducing defective crimping while improving production efficiency. Specifically, in the position control mode, the pressing head presses down to the set absolute position and detects whether the crimping force exceeds the set value; in the pressure control mode, the pressing head presses down to the set crimping force and judges whether the position exceeds the preset value; in the distance control mode, after the pressing head touches the workpiece downward, it presses down a relative distance and determines whether the crimping force and position exceed the preset values; in the equal - pressure distance control mode, it presses down a relative distance with the set crimping force and determines whether the position exceeds the set value; in the equal - pressure position control mode, it presses down to the absolute position with the set crimping force; in the multiple mixed control mode, according to the user's needs, the above controls can be mixed and used, where A represents the preset arrival distance and B represents the pressure that the equipment is expected to reach.

[0071] Please refer to Figure 15 , the pressing mechanism presses the bearings into the long shaft 12. The bearings at both ends of the long shaft 12 are pressed in simultaneously. When the bearings at both ends are pressed to the step dead - end position, the servo press will generate a displacement reference value, and at the same time, the pressure value will increase. When the set displacement and pressure values are reached, it automatically stops and retracts, and uploads the collected data for later traceability. Customize the control mode according to customer requirements, output the pressure - displacement curve, which can achieve automatic bearing pressing by inputting pressing parameters, and the pressing data automatically generates the pressing process curve, and the pressing report is automatically uploaded to the system for storage, realizing automated, standardized, and digital pressing to overcome the problems that cannot be effectively controlled in the manual assembly process, such as position accuracy, pressure requirements, knocking damage, and data recording.

[0072] In addition, the pantograph bearing press-fitting machine further includes a control system 7 having a touch screen 8. The control system 7 is electrically connected to the power source 512, the first press-fitting module, the second press-fitting module, and the position adjustment mechanism 523. The control system 7 is configured to obtain the displacement and pressure data of the first press-fitting module and the second press-fitting module. The touch screen 8 is used to receive touch signals to control the movement of the power source 512 and the position adjustment mechanism 523.

[0073] It should be noted that in this specification, relational terms such as first and second are only used to distinguish one entity from several other entities, and do not necessarily require or imply any actual relationship or order between these entities.

[0074] The various embodiments in this specification are described in a progressive manner. Each embodiment focuses on the differences from other embodiments. The same or similar parts among the various embodiments can be referred to each other.

[0075] Specific examples are used in this article to elaborate on the principles and implementation manners of the present invention. The description of the above embodiments is only used to help understand the method and its core idea of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the protection scope of the present invention.

Claims

1. A pantograph bearing press machine for pressing a bearing into a lower arm of a pantograph, wherein the lower arm comprises a main shaft, a long shaft, and a short shaft, wherein the long shaft and the short shaft are respectively connected perpendicularly to the two ends of the main shaft, characterized in that: The pantograph bearing press assembly machine comprises: Frame with a horizontal operating table on top; A movable positioning mechanism, provided on the horizontal operating platform and used to fix the lower arm, comprising a first positioning mechanism and a second positioning mechanism, both of which are movable along a first direction and are spaced apart; A press-fitting mechanism is arranged on the horizontal operating table and includes a first press-fitting module and a second press-fitting module located on both sides of the first positioning mechanism in the first direction. The first press-fitting module and the second press-fitting module can approach and move away from each other along the first direction to press the bearing into the long shaft and / or the short shaft along the first direction.

2. The pantograph bearing press machine according to claim 1, characterized in that: The first positioning mechanism includes: a first slide rail extending along the first direction; a first sliding plate, slidably connected to the first sliding rail, wherein the first sliding plate is provided with a first positioning member for fixing the lower arm; The clamping mechanism includes a vertical shaft connected to the first sliding plate and a horizontal shaft connected to the end of the vertical shaft away from the first sliding plate. The horizontal shaft can rotate around the vertical shaft axis to above the lower arm to limit the lower arm from separating from the first positioning member.

3. The pantograph bearing press machine according to claim 2, characterized in that: The second positioning mechanism includes: a second slide rail extending along the first direction; The second sliding plate is slidably connected to the second sliding rail at the bottom. The second sliding plate is provided with a first vertical plate and two second vertical plates arranged at intervals. The first vertical plate is provided with a first groove adapted to the outer wall of the main shaft. The ends of the two second vertical plates facing away from the second sliding plate are both provided with second grooves adapted to the outer walls of the major axis and the minor axis.

4. The pantograph bearing press-fitting machine according to claim 3, characterized in that: The mobile positioning mechanism further includes a third positioning mechanism, and the third positioning mechanism includes: a third slide rail extending along a second direction, wherein the second direction and the first direction are perpendicular to each other; The third sliding plate is slidably connected to the third sliding rail, and the second sliding rail is arranged on the side of the third sliding plate away from the third sliding rail, so that when the third sliding plate moves along the second direction, the second positioning mechanism is driven to move along the second direction. The third sliding plate is provided with clamps at both ends in the first direction, and the clamps can abut against the third sliding rail to limit the relative movement of the third sliding plate and the third sliding rail.

5. The pantograph bearing press-fitting machine according to claim 4, characterized in that: The first press-fitting module and the second press-fitting module are slidably connected to the first slide rail, the first press-fitting module is provided with a first press-fitting head, the second press-fitting module is provided with a second press-fitting head, and the first press-fitting head and the second press-fitting head are located on the side facing each other of the first press-fitting module and the second press-fitting module, the first press-fitting head is provided with a first positioning shaft for bearing positioning, the second press-fitting head is provided with a second positioning shaft for bearing positioning, and the first positioning shaft is detachable relative to the first press-fitting head.

6. The pantograph bearing press-fitting machine according to claim 5, characterized in that: The first press-fitting module is connected to a power source, and the first press-fitting module is connected to a position adjustment mechanism, and the power source and the position adjustment mechanism are located on the side opposite to the first press-fitting module and the second press-fitting module, and the position adjustment mechanism can drive the second press-fitting head equipped with the bearing to move to a preset position, and the power source can drive the first press-fitting head equipped with the bearing to move close to the position adjustment mechanism, so that the two bearings in the first direction are pressed into the long shaft or the short shaft at the same time.

7. The pantograph bearing press assembly machine according to claim 3, characterized in that: The first positioning member includes: A third vertical plate, having an end facing away from the first sliding plate and provided with a third groove adapted to fit the outer wall of the main shaft; Two fourth vertical plates are provided with fourth grooves adapted to the outer walls of the major axis and the minor axis at one end away from the first sliding plate. The two fourth vertical plates are spaced apart and are both perpendicular to the third vertical plate.

8. The pantograph bearing press-fitting machine according to claim 7, characterized in that: The first groove and the third groove are both U-shaped structures, and the second groove and the fourth groove are both V-shaped structures.

9. The pantograph bearing press-fitting machine according to claim 4, characterized in that: The horizontal operating table is further provided with a scale positioning mechanism extending along the second direction. One end of the third sliding plate in the first direction is further provided with a positioning pointer, and the positioning pointer is spaced apart and arranged above the scale positioning mechanism.

Images