Axle box pull rod pressing machine

Abstract

The invention provides an axle box pull rod pressing machine. The axle box pull rod pressing machine comprises a pressing machine body, an operation table, a pressing head, a guide rail and two moving platforms, the operation table and the pressing head are oppositely arranged on the pressing machine body in the vertical direction, the pressing machine body is configured to drive the pressing head to move relative to the operation table, and the guide rail is arranged on the operation table; the two moving platforms are movably arranged on the guide rail in the extending direction of the guide rail, each moving platform comprises a moving seat and a press-fitting table, the moving seats are movably connected with the guide rail, the press-fitting tables are arranged on the moving seats, the press-fitting tables of the two moving platforms are configured to be two mandrel mounting ends for containing axle box pull rods respectively, and each press-fitting table is provided with a first containing cavity; the first accommodating cavity is used for accommodating the first end of the mandrel; and the pressing head is used for pressing the core shaft into the mounting hole in the core shaft mounting end under the driving of the pressing machine main body. The axle box pull rod press-fitting machine is high in press-fitting efficiency, and the mandrels are not prone to inclination.

Description

Technical Field

[0001] The invention relates to the field of press-fitting machines, in particular to an axle box tie rod press-fitting machine. Background Art

[0002] The axle box tie rod is one of the important components connecting the wheel axle and the frame. Its main function is to support the wheel axle, stabilize driving, and ensure the safety and stability of the train operation. The axle box tie rod needs to be assembled before use, that is, the mandrel needs to be installed into the mandrel mounting hole on the axle box tie rod body. The assembly process generally requires the use of an axle box tie rod press to press the mandrel into the mandrel mounting hole on the axle box tie rod body through the axle box tie rod press.

[0003] When pressing, the existing axle box tie rod press machine generally needs to first adjust one end of the axle box tie rod body where the core shaft mounting hole is located to a horizontal level, and then use the pressure head of the press machine to apply pressure to the upper end of the core shaft, thereby pressing the core shaft into the core shaft mounting hole of the axle box tie rod body, and repeat the above process to press another core shaft into another core shaft mounting hole on the axle box tie rod body, thereby completing the assembly of the axle box tie rod.

[0004] However, the use of the above-mentioned press to assemble the axle box tie rod is not only inefficient because it requires moving the axial tie rod and leveling the two ends of the axle box tie rod twice, but the two leveling processes are prone to deviations, which may cause the two core shafts at the two ends of the axial tie rod to tilt relative to each other. Summary of the invention

[0005] In order to solve at least one of the problems mentioned in the background technology, the present invention provides an axle box tie rod press assembly machine, which has high press assembly efficiency and is not prone to tilting between core shafts.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] The present invention provides an axle box tie rod press machine, which is used for press-fitting axle box tie rods. The axle box tie rod press machine comprises a press machine body, an operating table, a pressing head, a guide rail and two movable platforms. The operating table and the pressing head are relatively arranged on the press machine body in a vertical direction, and the press machine body is configured to drive the pressing head to move relative to the operating table. The guide rail is arranged on the operating table, and the guide rail extends along a first horizontal direction.

[0008] Two mobile platforms are movably arranged on the guide rails along the extension direction of the guide rails, the mobile platforms include a mobile seat and a press-fitting platform, the mobile seat is movably connected to the guide rails, the press-fitting platform is arranged on the mobile seat, the press-fitting platforms of the two mobile platforms are configured to respectively place two mandrel mounting ends of the axle box tie rod, and the press-fitting platform has a first accommodating cavity, and the first accommodating cavity is used to accommodate the first end of the mandrel;

[0009] The pressing head is used to press the mandrel into the mounting hole on the mandrel mounting end under the drive of the press machine body to form the axle box tie rod.

[0010] As an optional implementation, a locking bolt is provided on the moving seat to lock the moving platform at a target position on the guide rail.

[0011] As an optional implementation, the first accommodating cavity passes through the press-fitting platform in a vertical direction.

[0012] As an optional embodiment, the guide rail includes two slide rails spaced apart along the second horizontal direction, and the bottom sides of the movable seat include two slide grooves spaced apart along the second horizontal direction, the two slide grooves are respectively slidably connected to the two slide rails, and the second horizontal direction is perpendicular to the first horizontal direction.

[0013] As an optional implementation, the operating table includes a second accommodating cavity, the second accommodating cavity extends along the first horizontal direction, the second accommodating cavity is located between the two slide rails, and the first accommodating cavity is located above the second accommodating cavity.

[0014] As an optional implementation, the guide rail includes stoppers, which are arranged at both ends of the guide rail along the first horizontal direction to prevent the moving platform from detaching from the guide rail.

[0015] As an optional implementation, an elastic support member is provided between the press-fitting platform and the movable seat.

[0016] As an optional embodiment, the press-fitting table includes a body and a base, the base is arranged on the movable seat, the body is detachably arranged on the base, the body is used to accommodate the core shaft mounting end, and the first accommodating cavity passes through the base and the body in the vertical direction.

[0017] As an optional embodiment, it also includes a press-fitting tool, the bottom of the press-fitting tool has a third accommodating cavity, the press-fitting tool is configured to be sleeved on the second end of the axle box pull rod through the third accommodating cavity, and the pressure head is configured to apply pressure to the top of the press-fitting tool.

[0018] As an optional embodiment, a replaceable adjusting washer is further included. The adjusting washer is arranged on the main body, and the thickness of the adjusting washer matches the height difference between the two core shaft mounting ends of the axle box pull rod.

[0019] The axle box tie rod press provided by the present invention is used for press-fitting axle box tie rods. The axle box tie rod press comprises a press machine body, an operating table, a pressing head, a guide rail and two movable platforms. The operating table and the pressing head are relatively arranged on the press machine body in a vertical direction, and the press machine body is configured to drive the pressing head to move relative to the operating table. The guide rail is arranged on the operating table, and the guide rail extends along a first horizontal direction; the two movable platforms are movably arranged on the guide rail along the extension direction of the guide rail, the movable platform comprises a movable seat and a pressing table, the movable seat is movably connected to the guide rail, the pressing table is arranged on the movable seat, the pressing tables of the two movable platforms are configured to respectively accommodate the two core shaft mounting ends of the axle box tie rod, the pressing table has a first accommodating cavity, and the first accommodating cavity is used to accommodate the first end of the core shaft; the pressing head is used to press the core shaft into the mounting hole on the core shaft mounting end under the drive of the press machine body to form the axle box tie rod. When the axle box tie rod press provided by the present invention is in use, the two core shaft mounting ends of the axle box tie rod can be respectively placed on the pressing tables of the two movable platforms, so that the core shaft mounting holes at the two core shaft mounting ends are aligned with the first accommodating cavity on the lower pressing table, and the end faces of the core shaft mounting ends are adjusted to be horizontal, and then one of the movable platforms is pushed along the guide rail to just below the pressing head of the press, and the core shaft is pressed into one of the core shaft mounting holes by the pressing head, and then the other movable platform is sent to just below the pressing head by pushing the movable platform, and then the other core shaft is pressed into the other core shaft mounting hole by the pressing head, thereby completing the assembly process of the axle box tie rod. It can be seen that the use of the axle box tie rod press provided by the present invention for assembling the axle box tie rod does not require direct movement of the axial tie rod, nor does it require horizontal leveling of the two ends of the axle box tie rod in two times, thereby improving the pressing efficiency, and the core shafts at both ends of the axial tie rod after pressing are not prone to tilting. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention 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, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0021] Figure 1 A first structural schematic diagram of an axle box tie rod press assembly machine provided by an embodiment of the present invention;

[0022] Figure 2 A second structural schematic diagram of an axle box tie rod press assembly machine provided by an embodiment of the present invention;

[0023] Figure 3 A third structural schematic diagram of an axle box tie rod press assembly machine provided by an embodiment of the present invention;

[0024] Figure 4A fourth structural schematic diagram of an axle box tie rod press assembly machine provided by an embodiment of the present invention;

[0025] Figure 5 for Figure 1 The enlarged view of point A in the middle;

[0026] Figure 6 A schematic diagram of an axle box tie rod in an embodiment of the present invention;

[0027] Figure 7 Another schematic diagram of the axle box tie rod in the embodiment of the present invention;

[0028] Figure 8 A schematic structural diagram of a press-fitting tool in an axle box tie rod press-fitting machine provided in an embodiment of the present invention.

[0029] Description of reference numerals:

[0030] 100-Pressing machine;

[0031] 110-pressing machine body;

[0032] 120-operating table;

[0033] 121 - second accommodating chamber;

[0034] 130-pressure head;

[0035] 140-Guide rail;

[0036] 141- stopper;

[0037] 150-mobile platform;

[0038] 151-mobile seat;

[0039] 1511-locking bolt;

[0040] 152-pressing table;

[0041] 1521-first accommodating chamber;

[0042] 1522-Ontology;

[0043] 1523-base;

[0044] 160- elastic support member;

[0045] 170-pressing tooling;

[0046] 171 - third accommodating chamber;

[0047] 180-adjusting washer;

[0048] 200-axle box tie rod;

[0049] 210- mandrel mounting end;

[0050] 220- Mandrel. DETAILED DESCRIPTION

[0051] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0052] In the application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings. These terms are mainly used to better describe the present invention and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0053] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those skilled in the art, the specific meanings of these terms in the present invention can be understood according to specific circumstances.

[0054] In addition, the terms "installed", "set", "provided with", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0055] In addition, the terms "first", "second", etc. are mainly used to distinguish different devices, elements or components (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance and quantity of the indicated devices, elements or components. Unless otherwise specified, "plurality" means two or more.

[0056] The axle box tie rod press is a device used to press the mandrel into the mandrel mounting hole on the axle box tie rod body. When the axle box tie rod press is used, it is generally necessary to first adjust the end of the axle box tie rod body where the mandrel mounting hole is located to a horizontal level, and then apply pressure to the upper end of the mandrel through the pressure head of the press, so as to press the mandrel into the mandrel mounting hole of the axle box tie rod body, and repeat the above process to press another mandrel into another mandrel mounting hole on the axle box tie rod body, thereby completing the assembly of the axle box tie rod. This method of assembling the axle box tie rod is not only inefficient because it requires moving the axial tie rod and performing horizontal leveling on both ends of the axle box tie rod twice, but also the two leveling processes are prone to deviations, which may cause the two mandrels at both ends of the axial tie rod to tilt relative to each other.

[0057] In view of this, the present invention provides an axle box tie rod press, comprising a press main body, an operating table, a pressing head, a guide rail and two movable platforms, the operating table and the pressing head are relatively arranged on the press main body in a vertical direction, and the press main body is configured to drive the pressing head to move relative to the operating table, the guide rail is arranged on the operating table, and the guide rail extends along a first horizontal direction; the two movable platforms are movably arranged on the guide rail along the extension direction of the guide rail, the movable platform comprises a movable seat and a pressing table, the movable seat is movably connected to the guide rail, the pressing table is arranged on the movable seat, the pressing tables of the two movable platforms are configured to respectively accommodate two core shaft mounting ends of the axle box tie rod, the pressing table has a first accommodating cavity, and the first accommodating cavity is used to accommodate the first end of the core shaft; the pressing head is used to press the core shaft into the mounting hole on the core shaft mounting end under the drive of the press main body to form the axle box tie rod. When the axle box tie rod press provided by the present invention is in use, the two core shaft mounting ends of the axle box tie rod can be respectively placed on the pressing tables of the two movable platforms, so that the core shaft mounting holes at the two core shaft mounting ends are aligned with the first accommodating cavity on the lower pressing table, and the end faces of the core shaft mounting ends are adjusted to be horizontal, and then one of the movable platforms is pushed along the guide rail to just below the pressing head of the press, and the core shaft is pressed into one of the core shaft mounting holes by the pressing head, and then the other movable platform is sent to just below the pressing head by pushing the movable platform, and then the other core shaft is pressed into the other core shaft mounting hole by the pressing head, thereby completing the assembly process of the axle box tie rod. It can be seen that the use of the axle box tie rod press provided by the present invention for assembling the axle box tie rod does not require direct movement of the axial tie rod, nor does it require horizontal leveling of the two ends of the axle box tie rod in two times, thereby improving the pressing efficiency, and the core shafts at both ends of the axial tie rod after pressing are not prone to tilting.

[0058] Figure 1 A first structural schematic diagram of an axle box tie rod press assembly machine provided by an embodiment of the present invention; Figure 2 A second structural schematic diagram of an axle box tie rod press assembly machine provided by an embodiment of the present invention;

[0059] Figure 3 A third structural schematic diagram of an axle box tie rod press assembly machine provided by an embodiment of the present invention; Figure 4 A fourth structural schematic diagram of an axle box tie rod press assembly machine provided by an embodiment of the present invention; Figure 5 for Figure 1 The enlarged view of point A in the middle; Figure 6 A schematic diagram of an axle box tie rod in an embodiment of the present invention; Figure 7 Another schematic diagram of the axle box tie rod in the embodiment of the present invention; Figure 8 This is a schematic diagram of the structure of a press-fitting tool in an axle box tie rod press-fitting machine provided by an embodiment of the present invention. Figures 1 to 8 The embodiment of the present invention provides an axle box tie rod press 100 for press-fitting an axle box tie rod 200. The axle box tie rod press 100 includes a press body 110, an operating table 120, a pressing head 130, a guide rail 140, and two moving platforms 150. The operating table 120 and the pressing head 130 are relatively arranged on the press body 110 in a vertical direction, and the press body 110 is configured to drive the pressing head 130 to move relative to the operating table 120. The guide rail 140 is arranged on the operating table 120, and the guide rail 140 extends along a first horizontal direction. The two movable platforms 150 are movably arranged on the guide rail 140 along the extension direction of the guide rail 140, and the movable platform 150 includes a movable seat 151 and a press-fitting platform 152. The movable seat 151 is movably connected to the guide rail 140, and the press-fitting platform 152 is arranged on the movable seat 151. The press-fitting platforms 152 of the two movable platforms 150 are configured to respectively place the two spindle mounting ends 210 of the axle box tie rod 200, and the press-fitting platform 152 has a first accommodating cavity 1521, and the first accommodating cavity 1521 is used to accommodate the first end ( Figure 6 and Figure 7 The pressing head 130 is used to press the mandrel 220 into the mounting hole on the mandrel mounting end 210 under the drive of the press-fitting machine body 110 to form the axle box pull rod 200.

[0060] It should be noted that the structure of the core shaft 220 generally includes the core shaft 220 body 1522 and a rubber sleeve mounted on the middle part of the core shaft 220. The axial length of the rubber sleeve along the core shaft 220 is consistent with the height of the core shaft mounting hole on the axle box tie rod 200. Assembling the axle box tie rod 200 is to install the rubber sleeve part on the core shaft 220 in the core shaft mounting hole.

[0061] The shape of the first accommodating cavity 1521 can be designed to be a circular hole type. After the core shaft 220 is pressed into the core shaft mounting hole on the axial pull rod, one end of the core shaft 220 passing through the core shaft mounting hole can be accommodated in the first accommodating cavity 1521.

[0062] When the axle box tie rod press machine 100 provided by the embodiment of the present invention is in use, the two mandrel mounting ends 210 of the axle box tie rod 200 can be respectively placed on the press-fitting tables 152 of the two mobile platforms 150, so that the mandrel mounting holes at the two mandrel mounting ends 210 are aligned with the first accommodating cavity 1521 on the lower press-fitting table 152, and the end surface of the mandrel mounting end 210 is adjusted to be horizontal, and then one of the mobile platforms 150 is pushed along the guide rail 140 to the bottom of the pressing head 130 of the press-fitting machine 100, and the mandrel 220 is pressed into one of the mandrel mounting holes through the pressing head 130. Thereafter, the other mobile platform 150 is sent to the bottom of the pressing head 130 by pushing the mobile platform 150, and then the other core shaft 220 is pressed into the other core shaft mounting hole by the pressing head 130, thereby completing the assembly process of the axle box tie rod 200. It can be seen that the assembly of the axle box tie rod 200 using the axle box tie rod press 100 provided in the embodiment of the present invention does not require direct movement of the axial tie rod, nor does it require horizontal leveling of the two ends of the axle box tie rod 200 in two times, thereby improving the pressing efficiency, and the core shafts 220 at both ends of the axial tie rod after pressing are not prone to tilt.

[0063] like Figure 5 As shown, in the above embodiment, a locking bolt 1511 may be provided on the moving seat 151 to lock the moving platform 150 at the target position on the guide rail 140. Specifically, the locking bolt 1511 may be located on the outside of the guide rail 140. When the moving platform 150 is moved to the position directly below the pressure head 130, the locking bolt 1511 may be screwed to make the lower end of the locking bolt 1511 abut against the table surface of the operating table 120, thereby locking the moving platform 150 at the current position. A threaded hole matching the locking bolt 1511 may also be provided at an appropriate position on the table surface of the operating table 120 below the pressure head 130. When the moving platform 150 is moved to the position directly below the pressure head 130, the locking bolt 1511 may be screwed to make the lower end of the locking bolt 1511 screwed into the threaded hole, thereby more firmly locking the moving platform 150 at the current position.

[0064] In the above embodiment, the first accommodating cavity 1521 may penetrate the press-fitting platform 152 in the vertical direction to increase the size of the first accommodating cavity 1521 in the vertical direction, so that a longer core shaft 220 may be accommodated by the first accommodating cavity 1521 .

[0065] In the above embodiment, the guide rail 140 may include two slide rails spaced apart along the second horizontal direction, and the bottom sides of the moving seat 151 include two slide grooves spaced apart along the second horizontal direction, the two slide grooves are respectively slidably connected to the two slide rails, and the second horizontal direction is perpendicular to the first horizontal direction. When the moving platform 150 is moved, the two slide grooves on both sides of the bottom of the moving seat 151 can slide along the two parallel slide rails at the same time, thereby ensuring the stability of the moving platform 150 when moving.

[0066] The cross section of the slide rail can be as follows: Figure 5 As shown in the shape with a small middle and large ends, the shape of the slide groove can match the shape of the slide rail, so that the movable seat 151 can be prevented from moving in the vertical direction relative to the slide rail.

[0067] In the above embodiment, the operating table 120 may include a second accommodating cavity 121, the second accommodating cavity 121 extends along the first horizontal direction, the second accommodating cavity 121 is located between the two slide rails, and the first accommodating cavity 1521 is located above the second accommodating cavity 121. In this way, if the length of the mandrel 220 is long, the lower end of the mandrel 220 can pass through the first accommodating cavity 1521 and then enter the second accommodating cavity 121 below, which can adapt to mandrel 220 structures of more sizes, wherein the second accommodating cavity 121 can extend along the first direction to the two end edges of the operating table 120.

[0068] In the above embodiment, the guide rail 140 may include a stopper 141, which is arranged at both ends of the guide rail 140 along the first horizontal direction. When the mobile platform 150 moves along the guide rail 140 to the edge of the guide rail 140, the mobile platform 150 is stopped by the stopper 141 to prevent the mobile platform 150 from detaching from the guide rail 140. Specifically, the stopper 141 can be connected to the guide rail 140 in a detachable manner, for example, by bolts. In this way, when the mobile platform 150 needs to be removed from the guide rail 140, the stopper 141 can be removed from the guide rail 140 first, and then the mobile platform 150 can be moved out from both ends of the guide rail 140.

[0069] In the above embodiment, an elastic support member 160 may be provided between the press-fitting platform 152 and the movable seat 151. On the one hand, the elastic member may prevent direct rigid extrusion between the bottom of the press-fitting platform 152 and the movable seat 151, thereby causing certain damage to each other. On the other hand, the elastic member may slightly prop up the press-fitting platform 152 when the pressing head 130 of the press-fitting machine 100 is not press-fitted, so that the bottom of the press-fitting platform 152 is separated from the surface of the operating table 120, thereby facilitating the movement of the movable platform 150. When the pressing head 130 is press-fitted, the elastic support member 160 is compressed, and the bottom of the press-fitting platform 152 may abut against the operating table 120 to bear the pressure transmitted from the pressing head 130. Specifically, the elastic support member 160 may be a spring.

[0070] In the above embodiment, the press-fitting platform 152 may include a body 1522 and a base 1523, the base 1523 is disposed on the movable seat 151, the body 1522 is detachably disposed on the base 1523, the body 1522 is used to accommodate the spindle mounting end 210, and the first accommodating cavity 1521 vertically penetrates the base 1523 and the body 1522. By detachably arranging the body 1522 on the base 1523, different types of bodies 1522 can be replaced as needed to adapt to different axle box tie rods 200 disposed on the body 1522.

[0071] In the above embodiment, a press-fitting tool 170 may be further included. The bottom of the press-fitting tool 170 has a third accommodating cavity 171. The press-fitting tool 170 is configured to be sleeved on the second end ( Figure 6 and Figure 7 The press head 130 is configured to apply pressure to the top of the press fitting 170 . The pressing tool 170 is in an inverted cylindrical shape as a whole, and the third accommodating chamber 171 formed inside it is sleeved on the upper end of the core shaft 220. The diameter of the third accommodating chamber 171 is smaller than the diameter of the rubber sleeve in the middle part of the core shaft 220. In this way, the lower end face of the pressing tool 170 can abut against the upper end edge of the rubber sleeve. In addition, the diameter of the pressing tool 170 can be made larger than the diameter of the core shaft mounting hole on the axle box pull rod 200. In this way, when the rubber sleeve is completely pressed into the core shaft mounting hole, the lower end face of the pressing tool 170 can abut against the upper edge of the core shaft mounting hole to prevent the core shaft 220 from being pressed too much. It can be understood that the upper surface of the pressing tool 170 is generally a plane, and the area of ​​the plane is larger than the area of ​​the upper end face of the core shaft 220. By pressing the plane with the pressing head 130, the core shaft 220 can be prevented from being distorted due to the small area of ​​the upper end face of the core shaft 220.

[0072] The above embodiment may also include a replaceable adjusting washer 180, which may be disposed on the main body 1522, and the thickness of the adjusting washer 180 matches the height difference between the two core shaft mounting ends 210 of the axle box tie rod 200. By adjusting the washer 180, the rod body of the axle box tie rod 200 may be kept in a horizontal position to prevent the pressed core shaft 220 from tilting.

[0073] The axle box tie rod press 100 provided in the embodiment of the present invention is used for press-fitting the axle box tie rod 200. The axle box tie rod press 100 includes a press body 110, an operating table 120, a pressing head 130, a guide rail 140 and two movable platforms 150. The operating table 120 and the pressing head 130 are relatively arranged on the press body 110 in a vertical direction, and the press body 110 is configured to drive the pressing head 130 to move relative to the operating table 120. The guide rail 140 is arranged on the operating table 120, and the guide rail 140 extends along a first horizontal direction; the two movable platforms 150 are movably arranged along the extension direction of the guide rail 140. On the guide rail 140, the movable platform 150 includes a movable seat 151 and a press-fitting table 152. The movable seat 151 is movably connected to the guide rail 140. The press-fitting table 152 is arranged on the movable seat 151. The press-fitting tables 152 of the two movable platforms 150 are configured to respectively accommodate two core shaft mounting ends 210 of the axle box tie rod 200. The press-fitting table 152 has a first accommodating cavity 1521, and the first accommodating cavity 1521 is used to accommodate the first end of the core shaft 220; the pressing head 130 is used to press the core shaft 220 into the mounting hole on the core shaft mounting end 210 under the drive of the press-fitting machine body 110 to form the axle box tie rod 200. When the axle box tie rod press machine 100 provided by the embodiment of the present invention is in use, the two mandrel mounting ends 210 of the axle box tie rod 200 can be respectively placed on the press-fitting tables 152 of the two mobile platforms 150, so that the mandrel mounting holes at the two mandrel mounting ends 210 are aligned with the first accommodating cavity 1521 on the lower press-fitting table 152, and the end surface of the mandrel mounting end 210 is adjusted to be horizontal, and then one of the mobile platforms 150 is pushed along the guide rail 140 to the bottom of the pressing head 130 of the press-fitting machine 100, and the mandrel 220 is pressed into one of the mandrel mounting holes through the pressing head 130. Thereafter, the other mobile platform 150 is sent to the bottom of the pressing head 130 by pushing the mobile platform 150, and then the other core shaft 220 is pressed into the other core shaft mounting hole by the pressing head 130, thereby completing the assembly process of the axle box tie rod 200. It can be seen that the assembly of the axle box tie rod 200 using the axle box tie rod press 100 provided in the embodiment of the present invention does not require direct movement of the axial tie rod, nor does it require horizontal leveling of the two ends of the axle box tie rod 200 in two times, thereby improving the pressing efficiency, and the core shafts 220 at both ends of the axial tie rod after pressing are not prone to tilt.

[0074] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An axle box tie rod press machine, characterized in that: Used for press-fitting axle box tie rods, the axle box tie rod press-fitting machine comprises a press-fitting machine body, an operating table, a press head, a guide rail and two movable platforms, the operating table and the press head are arranged on the press-fitting machine body in a vertical direction relative to each other, and the press-fitting machine body is configured to drive the press head to move relative to the operating table, the guide rail is arranged on the operating table, and the guide rail extends along a first horizontal direction; The two movable platforms are movably arranged on the guide rail along the extension direction of the guide rail, the movable platform comprises a movable seat and a press-fitting platform, the movable seat is movably connected to the guide rail, the press-fitting platform is arranged on the movable seat, the press-fitting platforms of the two movable platforms are configured to respectively place the two spindle mounting ends of the axle box tie rod, the press-fitting platform has a first accommodating cavity, and the first accommodating cavity is used to accommodate the first end of the spindle; The pressing head is used to press the core shaft into the mounting hole on the core shaft mounting end under the drive of the pressing machine body to form the axle box pull rod.

2. The axle box tie rod press assembly machine according to claim 1, characterized in that: The moving seat is provided with a locking bolt to lock the moving platform at a target position on the guide rail.

3. The axle box tie rod press assembly machine according to claim 2, characterized in that: The first accommodating cavity penetrates the press-fitting platform along the vertical direction.

4. The axle box tie rod press assembly machine according to claim 3, characterized in that: The guide rail includes two slide rails spaced apart along a second horizontal direction, and the bottom sides of the movable seat include two slide grooves spaced apart along the second horizontal direction, the two slide grooves are respectively slidably connected to the two slide rails, and the second horizontal direction is perpendicular to the first horizontal direction.

5. The axle box tie rod press assembly machine according to claim 4, characterized in that: The operating table includes a second accommodating cavity, the second accommodating cavity extends along the first horizontal direction, the second accommodating cavity is located between the two slide rails, and the first accommodating cavity is located above the second accommodating cavity.

6. The axle box tie rod press assembly machine according to any one of claims 1 to 5, characterized in that: The guide rail includes stoppers, which are arranged at two ends of the guide rail along the first horizontal direction to prevent the moving platform from detaching from the guide rail.

7. The axle box tie rod press assembly machine according to any one of claims 1 to 5, characterized in that: An elastic supporting member is arranged between the press-fitting platform and the movable seat.

8. The axle box tie rod press assembly machine according to claim 7, characterized in that: The press-fitting table includes a body and a base, wherein the base is arranged on the movable seat, and the body is detachably arranged on the base. The body is used to place the core shaft mounting end, and the first accommodating cavity penetrates the base and the body along the vertical direction.

9. The axle box tie rod press assembly machine according to claim 8, characterized in that: It also includes a press-fitting tool, the bottom of which has a third accommodating cavity, the press-fitting tool is configured to be sleeved on the second end of the axle box pull rod through the third accommodating cavity, and the pressure head is configured to apply pressure to the top of the press-fitting tool.

10. The axle box tie rod press assembly machine according to claim 9, characterized in that: It also includes a replaceable adjusting washer, which is arranged on the body, and the thickness of the adjusting washer matches the height difference between the two core shaft mounting ends of the axle box tie rod.

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