Positioning tool, carrying device and bogie production line

Abstract

The utility model provides a positioning tool, a carrying device and a bogie production line, and relates to the technical field of locomotive production. The positioning tool comprises a supporting frame and an auxiliary positioning structure arranged on the supporting frame. The supporting frame comprises supporting seats oppositely arranged in the left-right direction, and the supporting seats are used for supporting the swing bolster from the lower portion within the set length section of the swing bolster. An auxiliary positioning structure is arranged on at least one side, in the left-right direction, of the supporting base and used for being in positioning connection with the swing bolster in a set length section so as to limit displacement of the swing bolster in at least one direction. The set length section is a length section corresponding to the inclined belly structure of the swing bolster. The positioning tool can be used for supporting and positioning a single swing bolster, can also be used for supporting and positioning a bolster frame composed of the swing bolster and a side frame, and is simple in structure and high in applicability. And moreover, the device is connected with the swing bolster in a set length section, so that the reliability of supporting and positioning the swing bolster can be ensured, and the occupied space can be prevented from being too large.

Description

Technical Field

[0001] The utility model relates to the technical field of locomotive production, and in particular to a positioning tool, a handling device and a bogie production line. Background Art

[0002] The bogie is a crucial component connecting the wheels to the vehicle body and is a vital component of railway vehicles. Common bogies for railway freight cars include the K2, K4, K5, and K6 types. These bogies consist of a bolster and sideframes. Each end of the bolster is fitted with an end section for attaching to the sideframe. The cross-sectional profile of the end section is typically designed to be more regular, facilitating connection to the sideframe. The portion of the bolster near the end section is equipped with a diagonal belly structure to enhance the bolster's bending resistance.

[0003] During the production process of bogies, it is necessary to position and support the bolsters by tooling so that, for example, a transfer vehicle can transfer the tooling and the bolsters thereon. At present, the bolsters are generally supported and positioned at the end length sections of the bolsters. However, with the development of automated production technology, some technologies require the positioning, support, and even transportation of the bolster frame (the combination of the bolster and side frame is called a "bolster frame"). In this case, since the end length sections of the bolsters are connected to the side frames, traditional positioning tooling cannot meet the positioning and support requirements for the bolster frame. Utility Model Content

[0004] The utility model aims to solve the problem of how to improve the applicability of the positioning tool of the steering bolster to a certain extent.

[0005] In order to solve at least one aspect of the above-mentioned problems to at least a certain extent, in a first aspect, the utility model provides a positioning tool, comprising a support frame and an auxiliary positioning structure arranged on the support frame; the support frame comprises support seats relatively arranged along the left and right directions, and the support seats are used to support the bolster from below within a set length segment of the bolster; the support seat is provided with the auxiliary positioning structure on at least one side along the left and right directions, and the auxiliary positioning structure is used to be positioned and connected with the bolster within the set length segment to limit the displacement of the bolster in at least one direction; the set length segment is the length segment corresponding to the oblique belly structure of the bolster.

[0006] Optionally, a receiving portion is formed at the bottom of the bolster within the set length segment, and the auxiliary positioning structure is inserted into the receiving portion to limit the displacement of the bolster in the front-to-back direction and / or the left-to-right direction.

[0007] Optionally, the bolster includes a first type bolster, wherein the first type bolster is provided with a first through hole at the oblique belly structure, the first through hole constituting the accommodating portion, and the auxiliary positioning structure is provided on the inner side of the support base along the left-right direction, the inner auxiliary positioning structure is a first auxiliary positioning structure, and the first auxiliary positioning structure is inserted into the first through hole;

[0008] And / or, the bolster includes a second type of bolster, the second type of bolster is provided with a stop structure at the oblique belly structure, and the accommodating portion is formed on the stop structure, the support seat is provided with the auxiliary positioning structure on the outer side along the left and right directions, the auxiliary positioning structure on the outer side is a second auxiliary positioning structure, and the second auxiliary positioning structure is inserted into the accommodating portion formed by the stop structure.

[0009] Optionally, the first through hole is a lower drain hole of the first type bolster;

[0010] And / or, the stop structure includes a connecting plate and two first plates, the two first plates are arranged opposite to each other in the front-to-back direction, the connecting plate is located at the outer end of the first plate in the left-to-right direction and is connected to the two first plates, the upper ends of the first plate and the connecting plate are both connected to the oblique belly structure, and the connecting plate and the two first plates form the accommodating portion;

[0011] And / or, the second auxiliary positioning structure is connected to the outer side wall of the support base along the left-right direction;

[0012] And / or, the projections of the support seat and the stop structure in the front-to-back direction partially overlap, and the support seat is provided with a avoidance structure for avoiding the stop structure;

[0013] And / or, the support seat is a plate extending along the front-to-back direction.

[0014] Optionally, when the bolster includes the first type of bolster and the second type of bolster, at least one of the auxiliary positioning structures is movably connected to the support frame via a locking unit, and / or at least one of the auxiliary positioning structures is detachably connected to the support frame.

[0015] Optionally, the locking unit includes a first pin and a second pin, the first auxiliary positioning structure is rotatably connected to the support frame via the first pin, and is connected to the support frame via a detachable second pin;

[0016] And / or, the first auxiliary positioning structure is a rod-shaped structure, and in the left-right direction, the distance from the upper end of the rod-shaped structure to the support seat is greater than the distance from the lower end of the rod-shaped structure to the support seat.

[0017] In a second aspect, the present invention provides a transport device, which includes a walking unit and the positioning tooling as described in the first aspect above.

[0018] Optionally, the transport device further comprises a fixed frame, a lifting guide unit and a lifting drive unit, the support frame of the positioning tool is liftably connected to the fixed frame via the lifting guide unit, the lifting drive unit is drivingly connected to the support frame, and the walking unit is connected to the fixed frame;

[0019] And / or, the transport device further comprises a detection unit, wherein the detection unit comprises at least one of a proximity switch and a laser radar;

[0020] And / or, the traveling unit is used for traveling on a preset track, and the transport device further comprises a winding unit, and the winding unit is used for retracting and releasing cables during the traveling process of the traveling unit.

[0021] Optionally, the support frame includes a lifting seat located at the bottom, the lifting guide unit includes a guide shaft, and the fixed frame includes a third plate located on both sides of the lifting seat, both ends of the guide shaft are rotatably connected to the third plates on both sides of the lifting seat, and a plurality of guide shafts are respectively provided on both sides of the lifting seat in a direction perpendicular to the distribution direction of the two third plates, and the guide shafts are in rolling contact with the lifting seat, and limit plates are provided at intervals on the guide shafts, and the limit plates are used to limit the displacement of the lifting seat along the axial direction of the guide shafts;

[0022] And / or, the lifting drive unit is installed on any one of the fixed frame and the ground, wherein when the lifting drive unit is installed on the ground and the transport device moves to a preset position, the lifting drive unit drives the support frame to rise and fall.

[0023] In a third aspect, the present invention provides a bogie production line, comprising the handling device as described in the second aspect above.

[0024] Compared to the related prior art, in the positioning fixture, handling device, and bogie production line of the present invention, the support frame includes support seats arranged relative to each other in the left-right direction. The support seats support the bolster within a set length section corresponding to the oblique belly structure of the bolster. The auxiliary positioning structure connected to the support frame is also positioned and connected to the bolster within the set length section, for example, to position the bolster in the left-right direction and / or the front-back direction, limiting the displacement of the bolster in the corresponding direction. This can achieve reliable support and positioning of the bolster while avoiding the occupation of the end length section of the bolster caused by the provision of the support seat and the auxiliary positioning structure. In other words, when the positioning fixture of the present invention supports and positions the bolster, the end length section of the bolster for sleeve connection with the side frame can be exposed, so that the positioning fixture of the present invention can also be used to support and position the bolster frame (the bolster frame includes the bolster and the side frame sleeved on the end length section of the bolster). The positioning fixture of the present invention has a simple structure and strong applicability. Moreover, connecting with the bolster within the set length section can avoid the distance between the two support seats being too short, thereby ensuring the reliability of the support positioning of the bolster. It can also avoid the distance between the two support seats being too large, which would cause the positioning tooling to be too large in the left and right directions and occupy too much space. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the three-dimensional structure of the transport device in an embodiment of the present utility model;

[0026] Figure 2 for Figure 1 A partial enlarged view of point A in the middle;

[0027] Figure 3 This is another structural schematic diagram of the transport device in an embodiment of the present utility model;

[0028] Figure 4 for Figure 3 Cross-sectional view at section AA;

[0029] Figure 5 for Figure 4 A partial enlarged view of point B in the middle;

[0030] Figure 6 for Figure 5 The sectional view at the middle section BB is the view after being straightened;

[0031] Figure 7 This is a schematic structural diagram of a transport device supporting a first type of bolster in an embodiment of the present utility model;

[0032] Figure 8 for Figure 7 A partial enlarged view of point C in the middle;

[0033] Figure 9This is a schematic structural diagram of a transport device supporting a second type of bolster in an embodiment of the present utility model;

[0034] Figure 10 for Figure 9 A partial enlarged view of point D in the middle;

[0035] Figure 11 This is a structural schematic diagram of a bogie production line in another embodiment of the present utility model.

[0036] Description of reference numerals:

[0037] 1-positioning fixture; 11-support frame; 111-support seat; 112-support plate; 113-lifting seat; 114-second plate; 115-avoidance groove; 12-auxiliary positioning structure; 12A-first auxiliary positioning structure; 12B-second auxiliary positioning structure; 13-locking unit; 131-first pin; 132-second pin; 133-limiting plate; 134-latch; 135-compression spring; 136-top pressure piece; 21A -First type bolster; 21B-Second type bolster; 211-First through hole; 212-Stop structure; 2121-First plate; 2122-Connecting plate; 3-Side frame; 4-Fixed frame; 41-Third plate; 42-Fourth plate; 43-Bottom plate; 5-Lifting guide unit; 51-Guide shaft; 52-Limiting plate; 6-Detection unit; 61-Proximity switch; 62-Lidar; 7-Winding unit; 8-Travel unit; 9-Preset track. DETAILED DESCRIPTION

[0038] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0039] In the description of this utility model, it should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to direct connections or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0040] Throughout this specification, reference to terms such as "an embodiment," "one embodiment," "some embodiments," "exemplarily," and "one embodiment" means that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or embodiment are included in at least one embodiment or embodiment of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or embodiment. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or embodiments.

[0041] The terms "first," "second," etc. are used for descriptive purposes only and should not be understood to indicate or imply relative importance or to implicitly specify the quantity of the technical features indicated. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one of the features.

[0042] In the accompanying drawings, the Z-axis represents the vertical direction, that is, the up and down position, and the positive direction of the Z-axis (that is, the direction of the arrow on the Z-axis) represents the up, and the negative direction of the Z-axis represents the down; in the accompanying drawings, the X-axis represents the front and back position, and the positive direction of the X-axis (that is, the direction of the arrow on the X-axis) represents the front side, and the negative direction of the X-axis represents the back side; in the accompanying drawings, the Y-axis represents the horizontal direction and is designated as the left and right position, and the positive direction of the Y-axis (that is, the direction of the arrow on the Y-axis) represents the right side, and the negative direction of the Y-axis represents the left side; it should also be noted that the aforementioned Z-axis, Y-axis and X-axis are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0043] like Figures 1 to 10 As shown, an embodiment of the present invention provides a positioning tool 1, which includes a support frame 11 and an auxiliary positioning structure 12 arranged on the support frame 11; the support frame 11 includes support seats 111 relatively arranged along the left and right directions, and the support seats 111 are used to support the bolster from below within a set length segment of the bolster; the support seat 111 is provided with an auxiliary positioning structure 12 on at least one side along the left and right directions, and the auxiliary positioning structure 12 is used to be positioned and connected with the bolster within a set length segment to limit the displacement of the bolster in at least one direction; the set length segment is the length segment corresponding to the oblique belly structure of the bolster.

[0044] Specifically, this specification will take the positioning tool 1 set on the transport device, and the transport device is used to transport a bolster, such as a bolster frame composed of a bolster and a side frame 3 as an example to illustrate the content of the utility model.

[0045] like Figure 7 and Figure 9As shown, along the left-right direction, the set length segment is located inside the end length segment of the bolster, the end length segment is used for the sleeve installation of the side frame 3 of the bogie, and the set length segment is the length segment corresponding to the oblique belly structure of the bolster.

[0046] Here, the bolster is generally axially symmetrical in the left-right direction, and the bolster generally includes an intermediate length section, a set length section, and an end length section. The left and right ends of the intermediate length section are respectively connected to the end length through the set length section. The bottom surface of the bolster within the set length section is a diagonal belly structure. Without considering openings such as the first through hole 211 described later or other factors such as the stop structure 212, the tangent line of the lower surface of the bolster formed by the diagonal belly structure forms an acute angle with the horizontal plane, for example, the acute angle is greater than 8-50°, such as 10° or 13°. The lower surface of the bolster in the intermediate length section is generally a plane parallel to the horizontal plane, or a plane that is flatter than the diagonal belly structure. No further detailed description will be given later.

[0047] The specific way of connecting the auxiliary positioning structure 12 to the bolster is not limited. It can position the bolster in at least one direction, such as the left and right direction and / or the front and back direction, and limit the displacement of the bolster in the corresponding direction. An example will be given later.

[0048] Thus, in the positioning fixture 1 of this embodiment, the support frame 11 includes support seats 111 disposed relative to each other along the left-right direction. The support seats 111 support the bolster within a set length section corresponding to the oblique belly structure of the bolster. The auxiliary positioning structure 12 connected to the support frame 11 is also positioned and connected to the bolster within the set length section, for example, to position the bolster in the left-right direction and / or the front-back direction, limiting the displacement of the bolster in the corresponding directions. This can achieve reliable support and positioning of the bolster while avoiding the occupation of the end length section of the bolster due to the provision of the support seats 111 and the auxiliary positioning structure 12. In other words, when the positioning fixture 1 of the present invention supports and positions the bolster, the end length section of the bolster for sleeve connection with the side frame 3 can be exposed, so that the positioning fixture 1 of the present invention can also be used to support and position the bolster frame (the bolster frame includes the bolster and the side frame 3 sleeved on the end length section of the bolster). The positioning fixture 1 of the present invention has a simple structure and strong applicability. Moreover, by being connected to the bolster within a set length segment, it is possible to avoid the distance between the two support seats 111 being too short, thereby ensuring the reliability of the support positioning of the bolster. It is also possible to avoid the distance between the two support seats 111 being too large, which would cause the positioning tool 1 to be too large in the left and right directions and occupy too much space.

[0049] Optionally, a receiving portion is formed at the bottom of the bolster within a set length section, and the auxiliary positioning structure 12 is inserted into the receiving portion to limit the displacement of the bolster in the front-to-back direction and / or the left-to-right direction.

[0050] Specifically, the specific setting method of the accommodating portion is not a limitation. It can be a structure specially set for plugging with the auxiliary positioning structure 12, or it can be formed by the inherent structure of the rocker. The inherent structure can have other functions, which is not a limitation and will be explained exemplarily later.

[0051] Specifically, the auxiliary positioning structure 12 limits the left-right movement of the bolster by contacting the accommodating portion in the left-right direction, and limits the front-rear movement of the bolster by contacting the accommodating portion in the front-rear direction.

[0052] After such arrangement, when the receiving portion of the auxiliary positioning structure 12 is plugged in and connected, that is, when the positioning tool 1 supports and positions the rocker, the projection of the auxiliary positioning structure 12 on the horizontal plane falls within the projection range of the set length segment of the rocker on the horizontal plane, avoiding the auxiliary positioning structure 12 from being exposed in the front and rear directions. The structure is simple and compact.

[0053] like Figure 7 and Figure 8 As shown, in the optional scheme of the auxiliary positioning structure 12, the bolster includes a first type of bolster 21A, and the first type of bolster 21A is provided with a first through hole 211 at the oblique belly structure, and the first through hole 211 constitutes a receiving portion, and the support seat 111 is provided with an auxiliary positioning structure 12 on the inner side along the left and right directions, and the inner auxiliary positioning structure 12 is a first auxiliary positioning structure 12A, and the first auxiliary positioning structure 12A is inserted into the first through hole 211.

[0054] Furthermore, the first through hole 211 is a lower water drop hole of the first type bolster 21A.

[0055] like Figure 7 and Figure 8 As shown, for example, the first type of bolster 21A is the bolster for the K2 and K6 bogies. The K2 and K6 bogies were designed by CRRC Qiqihar Co., Ltd. and are both three-piece cast steel bogies equipped with cross-bracing devices. They share the same basic structure, with the lower portion of the bolster forming a belly-shaped structure with a circular arc transition (i.e., an oblique belly structure), with a side frame 3 inserted into the end length sections at each end of the bolster. The bolster and side frame 3 of the K6 bogie are larger in cross-section than those of the K2 bogie to meet the 25t axle load strength requirement. Both K2 and K6 bogies are equipped with lower drain holes.

[0056] In this way, the first type of rocker 21A is supported by the support seat 111 arranged relatively to each other in the left and right directions, and the position limitation of the first type of rocker 21A in the left and right directions and / or the front and back directions is achieved by plugging the first auxiliary positioning structure 12A located on the inner side of the support seat 111 into the first through hole 211. The structure is simple and practical.

[0057] like Figure 9 and Figure 10 As shown, in the optional scheme of the auxiliary positioning structure 12, the bolster includes a second type of bolster 21B, the second type of bolster 21B is provided with a stop structure 212 at the oblique belly structure, and an accommodating portion is formed in the stop structure 212, and the support seat 111 is provided with an auxiliary positioning structure 12 on the outer side along the left and right directions, and the outer auxiliary positioning structure 12 is a second auxiliary positioning structure 12B, and the second auxiliary positioning structure 12B is inserted into the accommodating portion formed by the stop structure 212.

[0058] like Figure 9 and Figure 10 As shown, for example, the second-type bolster 21B is used for the K4 and K5 bogies. These K4 and K5 bogies, designed by CRRC Changjiang Company, are three-piece cast steel bogies equipped with a swing mechanism. They share the same basic structure: the end sections at each end of the bolster are each inserted into a side frame 3. Two lower stops (i.e., stop structures 212) are located below the bolster to limit the swing of the side frame 3. The bolster and side frame 3 of the K5 bogie are larger in cross-section than those of the K4 bogie to meet the 25-ton axle load strength requirement. The stop structure 212 typically forms a bottom-opening receiving portion, into which the second auxiliary positioning structure 12B is inserted, thereby enabling the positioning of the second-type bolster 21B.

[0059] In this way, the second type of rocker 21B is supported by the support seat 111 arranged relatively to each other in the left and right directions, and the position of the second type of rocker 21B in the left and right directions and / or the front and back directions is achieved by plugging the second auxiliary positioning structure 12B located on the outside of the support seat 111 into the accommodating portion formed at the stop structure 212. The structure is simple and practical.

[0060] like Figure 9 and Figure 10 As shown, further, the stop structure 212 includes a connecting plate 2122 and two first plates 2121, the two first plates 2121 are arranged opposite to each other in the front-to-back direction, the connecting plate 2122 is located at the outer end of the first plate 2121 in the left-right direction and is connected to the two first plates 2121, the upper ends of the first plate 2121 and the connecting plate 2122 are both connected to the oblique belly structure, and a receiving portion is formed between the connecting plate 2122 and the two first plates 2121.

[0061] Specifically, if Figure 9 and Figure 10As shown, the two stop structures 212 are arranged opposite to each other in the left and right directions. When the two second auxiliary positioning structures 12B are respectively inserted into the two accommodating portions formed by the stop structures 212, the left second auxiliary positioning structure 12B abuts against the connecting plate 2122 of the left stop structure 212 to limit the leftward movement of the second type of rocker 21B. The right second auxiliary positioning structure 12B abuts against the connecting plate 2122 of the right stop structure 212 to limit the rightward movement of the second type of rocker 21B. The second auxiliary positioning structure 12B abuts against the front and rear two first plates 2121 of the stop structure 212 to limit the movement of the second type of rocker 21B in the front and rear directions.

[0062] It should be understood that the first plate 2121 and the connecting plate 2122 of the stop structure 212 can be integrally formed, such as an integral casting, or can be separately formed, which can adopt relevant technologies.

[0063] Furthermore, the second auxiliary positioning structure 12B is connected to the outer side wall of the support base 111 along the left-right direction.

[0064] In this way, the structures of the second auxiliary positioning structure 12B and the support base 111 are more compact.

[0065] like Figure 1 、 Figure 2 and Figure 10 As shown, in the above embodiment, optionally, the projections of the support seat 111 and the stop structure 212 along the front-to-back direction partially overlap, and the support seat 111 is provided with a avoiding structure for avoiding the stop structure 212 .

[0066] Specifically, the support seat 111 is configured as a plate extending in the front-to-back direction, so that it can obtain a larger coverage area in the front-to-back direction and obtain a larger contact surface with the bolster, such as the oblique belly structure, to ensure the support reliability of the bolster.

[0067] When the stop structure 212 includes a connecting plate 2122 and a first plate 2121, and the second auxiliary positioning structure 12B is connected to the outer side wall of the support base 111 in the left-right direction, the avoidance structure includes two avoidance grooves 115, and the two avoidance grooves 115 respectively avoid the two first plates 2121. When the second type bolster 21B is supported on the positioning fixture 1, the first plates 2121 of the stop structure 212 are accommodated in the corresponding avoidance grooves 115, preventing the stop structure 212 from blocking the contact between the support base 111 and the bolster.

[0068] It should be understood that the second type bolster 21B can be supported on the support base 111 by contacting the lower surface of the oblique belly structure with the top surface of the support base 111. The lower surface of the oblique belly structure can also be provided with a pad, which contacts the support base 111 through the pad, thereby strengthening its structural rigidity on the one hand and reducing the height requirement of the top of the multi-support base 111 in the vertical direction to a certain extent on the other hand. In other words, the height difference requirement between the top of the support base 111 and the top of the second auxiliary positioning structure 12B can be reduced. Specifically, the height difference between the tops of the two can be reduced. In this case, when the positioning fixture 1 is used to support the first type bolster 21A, even if the second auxiliary positioning structure 12B is not removed, it will not interfere with the first type bolster 21A (if the height difference between the tops of the two is too large, for example, exceeding the maximum height difference corresponding to the slope of the bottom surface of the oblique belly structure of the first type bolster 21A, the second auxiliary positioning structure 12B needs to be removed to avoid interference between the first type bolster 21A and the second auxiliary positioning structure 12B).

[0069] like Figures 1 to 10 As shown, in the above embodiment, optionally, when the bolster includes a first type of bolster 21A and a second type of bolster 21B, at least one auxiliary positioning structure 12 is movably connected to the support frame 11 through a locking unit 13, and / or, at least one auxiliary positioning structure 12 is detachably connected to the support frame 11.

[0070] Specifically, the positioning fixture 1 can selectively support the first type bolster 21A and the second type bolster 21B, that is, support only the first type bolster 21A, or support only the second type bolster 21B. In other words, the positioning fixture 1 can support and position the first type bolster 21A through the first auxiliary positioning structure 12A and the support base 111, and can also support and position the second type bolster 21B through the second auxiliary positioning structure 12B and the support base 111. This example will be used to illustrate the present invention.

[0071] In this embodiment, at least one auxiliary positioning structure 12 is movably connected to the support frame 11 through a locking unit 13, so that the auxiliary positioning structure 12 can achieve posture switching by movement relative to the support frame 11, for example, switching between a supporting position for supporting the corresponding bolster and a folding position, and the locking unit 13 can at least lock the bolster in the supporting position.

[0072] For example, the first auxiliary positioning structure 12A is movably disposed and correspondingly provided with a locking unit 13. When the first auxiliary positioning structure 12A is in the supporting position and locked by the locking unit 13, the first type bolster 21A can be supported and positioned by the first auxiliary positioning structure 12A and the support base 111. When the second type bolster 21B needs to be supported and positioned by the second auxiliary positioning structure 12B and the support base 111, the first auxiliary positioning structure 12A can be switched to a folded position to avoid interference with the second type bolster 21B. For example, if the tangent line of the lower surface of the oblique belly structure of the second type bolster 21B forms a relatively large acute angle with the horizontal plane, that is, the lower surface of the oblique belly structure of the second type bolster 21B is steeper, if the first auxiliary positioning structure 12A is not switched to the folded position to reduce its height, it may interfere with the second type bolster 21B.

[0073] A similar effect can be achieved by disassembling the auxiliary positioning structure 12 , which will not be described in detail here.

[0074] In this way, the space requirement in the vertical direction at the installation position can be reduced by moving or disassembling the auxiliary positioning structure 12, so that the positioning tool 1 can be used to selectively support the first type of rocker 21A and the second type of rocker 21B.

[0075] Further, if Figures 1 to 6 As shown, further, the locking unit 13 includes a first pin 131 and a second pin 132 , and the first auxiliary positioning structure 12A is rotatably connected to the support frame 11 through the first pin 131 and is connected to the support frame 11 through the detachable second pin 132 .

[0076] Specifically, the first auxiliary positioning structure 12A is a rod-shaped structure, the lower end of which is rotatably connected to the support frame 11 through a first pin shaft 131, and the rod-shaped structure is connected to the support frame 11 through a second pin shaft 132 in the middle position. When the second pin shaft 132 is disassembled, the rod-shaped structure can rotate around the first pin shaft 131.

[0077] Exemplarily, the support frame 11 includes a support plate 112, two support seats 111 arranged opposite to each other in the left-right direction and respectively connected to the support plate 112. For example, the two support seats 111 are respectively located at the two ends of the support plate 112 in the left-right direction. It should be understood that the top end of the support seat 111 is higher than the top surface of the support plate 112. Two second plates 114 are correspondingly provided on the inner side of each support seat 111. The two second plates 114 are spaced apart in the front-to-back direction, with the outer ends in the left-to-right direction connected to the support seat 111 and the lower ends connected to the support plate 112. The lower end of the rod-like structure is accommodated between the two second plates 114, and the first pin 131 and the second pin 132 are passed through the two second plates 114 and the rod-like structure. The first pin 131 and the second pin 132 extend in the front-to-back direction. Figures 1 to 8FIG. 1 shows a situation in which the first auxiliary positioning structure 12A is located at a supporting position and is fixed in position by the first pin 131 and the second pin 132 and is used to support and position the first type bolster 21A. Figure 9 and Figure 10 The diagram shows the first auxiliary positioning structure 12A in a folded position, where the positioning fixture 1 is used to support and position the second type bolster 21B.

[0078] In this way, the first auxiliary positioning structure 12A can be quickly switched between its supporting position and folding position by disassembling the second pin shaft 132, which has a simple structure and strong practicality.

[0079] Furthermore, in the above embodiment, optionally, the distance between the inner sides of the two support seats 111 is 1050 to 1160 mm, and the support seat 111 is a plate with a thickness of 20 mm. For example, the distance between the inner sides of the two support seats 111 is 1060 to 1100 mm, for example, 1060 mm, 1080 mm.

[0080] like Figure 5 、 Figure 8 and Figure 10 As shown, optionally, the first auxiliary positioning structure 12A is a rod-shaped structure, and in the left-right direction, the distance from the upper end of the rod-shaped structure to the support seat 111 is greater than the distance from the lower end of the rod-shaped structure to the support seat 111.

[0081] Specifically, the rod-like structure is arranged at an angle, with its upper end located inward of its lower end. Thus, when the first auxiliary positioning structure 12A is in its supporting position, the upper end of the rod-like structure is sufficiently distant from the support base 111 in the left-right direction, thereby preventing the support base 111 from contacting the first type bolster 21A at the first through-hole 211. This ensures the support base 111's ability to support the first type bolster 21A and also ensures the reliability of the first auxiliary positioning structure 12A in limiting the position of the first bolster in, for example, the left-right direction after it is plugged into the first through-hole 211.

[0082] like Figure 2 、 Figure 5 and Figure 6As shown, it should be understood that the locking unit 13 should be provided with an axial limiting structure corresponding to the first pin shaft 131 and the second pin shaft 132. For example, one end of the first pin shaft 131 is provided with an end plate, and the other end is provided with a slot. Its axial limiting structure includes a limiting plate 133 and a latch 134. The limiting plate 133 is located in the slot, and the latch 134 is inserted into the first pin shaft 131 and the limiting plate 133 along the radial direction of the first pin shaft 131. An elastic structure can be provided between the first pin shaft 131 and the limiting end plate. The elastic structure includes a compression spring 135 and a pressing member 136 such as a ball. The pressing member 136 abuts against the limiting plate 133 at one end along the axial direction of the first pin shaft 131, and abuts against the first pin shaft 131 through the compression spring 135, thereby preventing the limiting plate 133 from moving relative to the latch 134, thereby realizing axial limiting of the first pin shaft 131.

[0083] like Figures 1 to 10 As shown, another embodiment of the present invention provides a transport device, which includes a walking unit 8 and the positioning tool 1 of the above embodiment.

[0084] Specifically, the transport device supports and positions the bolster through the positioning tool 1 and moves through the walking unit 8, thereby meeting the transport requirements of the bolster. The structure is simple and the practicability is strong.

[0085] like Figure 3 and Figure 4 As shown, optionally, the handling device also includes a fixed frame 4, a lifting guide unit 5 and a lifting drive unit. The support frame 11 of the positioning tool 1 is liftably connected to the fixed frame 4 through the lifting guide unit 5, the lifting drive unit is drivingly connected to the support frame 11, and the walking unit 8 is connected to the fixed frame 4.

[0086] The fixing frame 4 serves as a supporting base for the entire handling device, and is used to support the supporting frame 11 . It can also be used to support other components, such as the winding unit 7 described later.

[0087] The specific structures of the lifting guide unit 5 and the lifting drive unit are not limited and will be exemplified later.

[0088] In this way, when necessary, the support frame 11 can be driven to rise and fall by the lifting drive unit as needed, and the lifting guide unit 5 can be used to guide the movement of the support frame 11 during the lifting process. The pillow frame it carries can be delivered by lifting, and it can be coordinated with the suspended production line arranged above the driving route of the transport device to realize loading and unloading.

[0089] like Figure 3 and Figure 4As shown, further, the support frame 11 includes a lifting seat 113 located at the bottom, the lifting guide unit 5 includes a guide shaft 51, and the fixed frame 4 includes a third plate 41 located on both sides of the lifting seat 113. The two ends of the guide shaft 51 are respectively rotatably connected to the third plates 41 on both sides of the lifting seat 113. Along the direction perpendicular to the distribution direction of the two third plates 41, multiple guide shafts 51 are respectively provided on both sides of the lifting seat 113. The guide shafts 51 are in rolling contact with the lifting seat 113. Limiting plates 52 are arranged at intervals on the guide shafts 51. The limiting plates 52 are used to limit the displacement of the lifting seat 113 along the axial direction of the guide shafts 51.

[0090] Specifically, the support base 111 of the support frame 11 is connected to the support plate 112 , the lifting base 113 is disposed at a middle position below the support plate 112 , and the top end of the lifting base 113 is connected to the lower surface of the support plate 112 .

[0091] The lifting seat 113 can be made of, for example, square steel extending up and down, and the two third plates 41 are arranged opposite to each other in the front-to-back direction. For example, the lower ends of the two third plates 41 are connected to the bottom plate 43 of the fixing frame 4. A plurality of guide shafts 51 are respectively provided on the left and right sides of the lifting seat 113. For example, three guide shafts 51 are respectively provided on the left and right sides. The guide shafts 51 on the same side are spaced apart in the up-down direction. Limiting plates 52 are spaced apart on one or more guide shafts 51 in the front-to-back direction. The distance between the upper limiting plates 52 in the front-to-back direction is slightly larger than the width of the lifting seat 113 in the front-to-back direction.

[0092] In this way, during the lifting process of the support frame 11, the guide shaft 51 is in rolling contact with the lifting seat 113 of the lifting frame to guide the lifting of the lifting frame, which has a simple structure and strong practicality.

[0093] Optionally, the lifting drive unit is installed on the fixing frame 4.

[0094] For example, the lifting drive unit includes a lifting cylinder, which can be arranged inside the square steel, with the upper end connected to the square steel or the support plate 112 of the support frame 11, and the lower end connected to the fixed frame 4. For example, the fixed frame 4 also includes a bottom plate 43, the third plate 41 is connected to the fixed plate, and the lower end of the lifting cylinder is connected to the bottom plate 43. In this case, when the lifting cylinder is in the retracted state, the lower end of the lifting seat 113 of the support frame 11 is spaced apart from or in contact with the upper surface of the bottom plate 43 (not shown in the figure of this solution).

[0095] It should be understood that the fixing frame 4 can also include a fourth plate 42, two fourth plates 42 are arranged opposite to each other in the left and right directions, the lower ends are connected to the bottom plate 43, and the two ends of the fourth plate 42 in the front and rear directions are respectively connected to the two third plates 41.

[0096] In this case, when the transport device moves, the lifting drive unit will move together with the fixing frame 4, which has a simple structure and strong practicality.

[0097] Different from the above-mentioned implementation in which the lifting drive unit is installed on the fixing frame 4, in another embodiment, the lifting drive unit is installed on the ground. When the lifting drive unit is installed on the ground and the transport device moves to a preset position, the lifting drive unit drives the support frame 11 to rise and fall.

[0098] In this case, when the lifting drive unit, such as the lifting cylinder, is in a retracted state, it should not hinder the movement of the transport device. When the transport device moves to the top of the lifting cylinder, the lifting cylinder performs a telescopic movement, and drives the support frame 11 to move upward by contacting the lifting seat 113, such as the sealing plate at the lower end of the rectangular steel. When the lifting height of the pillow frame reaches the hook height of the suspended production line, the upper water drop hole of the hook hanging rocking pillow and other positions can be used to realize the transfer of the pillow frame from the transport device to the suspended production line.

[0099] It should be understood that the ground here may also have other equivalent structures, such as a structure for supporting the walking unit 8, and the ground may be provided with a groove to accommodate the lifting drive unit.

[0100] In the above embodiment, optionally, the traveling unit 8 is used to travel on a preset track 9 , and the transport device further includes a winding unit 7 , which is used to retract and release the cable while the traveling unit 8 is traveling.

[0101] like Figure 11 As shown, specifically, the preset track 9 extends in the front-to-back direction, the cable can be a power supply cable, and the end of the power supply cable away from the transport device is used to connect to the power supply end. When the walking unit 8 moves forward on the preset track 9 and gradually moves away from the power supply end, the winding unit 7, such as a reel, releases the cable to prevent the cable from being too short. When the walking unit 8 moves backward on the preset track 9 and gradually approaches the power supply end, the winding unit 7, such as a reel, rolls up the cable to prevent the cable from being too long.

[0102] Optionally, the transport device further includes a detection unit 6 , and the detection unit 6 includes at least one of a proximity switch 61 and a laser radar 62 .

[0103] Exemplarily, the transport device is provided with two proximity switches 61, one at the front and one at the rear, to detect the position of the transport device through the proximity opening. For example, on the walking path of the transport device, stoppers are provided at the front and rear ends respectively, and the stoppers are used to trigger the detection signal of the proximity switch 61.

[0104] Exemplarily, the transport device is provided with two laser radars 62, one at the front and one at the back, which detect surrounding objects by emitting laser beams, thereby preventing the transport device from colliding with external people or objects.

[0105] like Figure 11As shown, another embodiment of the present invention provides a bogie production line, which includes the handling device as described in the above embodiment.

[0106] Exemplarily, it also includes a hanging production line, which will not be described in detail here.

[0107] The following is an exemplary description of the method for transporting the first type of bolster 21A or its corresponding bolster frame:

[0108] Secure the first auxiliary positioning structure 12A in its supporting position, for example, by tilting the rod-like structure. Place the bolster (i.e., first type bolster 21A) for the K2 or K6 type bolster frame along its length onto the two support bases 111 of the positioning fixture 1. Simultaneously, insert the two rod-like structures into the bolster's two lower drain holes to complete the bolster frame's receiving. The two rod-like structures assist in positioning the bolster frame and prevent it from dislodging from the handling device due to lateral (left-right) and longitudinal (forward-backward) movement, enhancing accuracy and stability during receiving.

[0109] When the traveling unit 8 reaches the set end point, the proximity switch 61 senses the end stop, and the traveling unit 8 stops traveling accordingly.

[0110] When it is necessary to hang the pillow frame on the suspended production line, start the lifting cylinder to lift the support frame 11, and the support frame 11 will rise upward, driving the pillow frame to rise. When the lifting height of the pillow frame reaches the hook height of the suspension line, the hook can be used to hang the water drop hole and other positions on the rocking pillow to realize the transfer of the pillow frame from the handling device to the suspension line.

[0111] The lifting cylinder descends and the support frame 11 returns to its original position. When the travel unit 8 moves in the reverse direction and reaches the starting position, the proximity switch 61 senses the starting stop, and the travel unit 8 stops moving accordingly.

[0112] When a person stands or passes by in the direction of the transport device, the laser radar 62 emits a laser beam to detect the person's position and stops the movement.

[0113] The transportation method of the second type bolster 21B or its corresponding bolster frame is similar to this and will not be described in detail here.

[0114] Although the present invention is disclosed as above, the protection scope of the present invention is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications will fall within the protection scope of the present invention.

Claims

1. A positioning tool, characterized in that: The invention comprises a support frame (11) and an auxiliary positioning structure (12) arranged on the support frame (11); the support frame (11) comprises support seats (111) arranged relatively to each other along the left-right direction, the support seats (111) being used to support the bolster from below within a set length section of the bolster; the support seat (111) is provided with the auxiliary positioning structure (12) on at least one side along the left-right direction, the auxiliary positioning structure (12) being used to be connected to the bolster in a positional manner within the set length section so as to limit the displacement of the bolster in at least one direction; the set length section is a length section corresponding to the oblique belly structure of the bolster.

2. The positioning tool as claimed in claim 1, characterized in that: The bolster is provided with a receiving portion at the bottom within the set length section, and the auxiliary positioning structure (12) is inserted into the receiving portion to limit the displacement of the bolster in the front-rear direction and / or the left-right direction.

3. The positioning tool as claimed in claim 2, characterized in that: The bolster comprises a first type of bolster (21A), the first type of bolster (21A) being provided with a first through hole (211) at the oblique belly structure, the first through hole (211) constituting the accommodating portion, the supporting seat (111) being provided with the auxiliary positioning structure (12) on the inner side along the left-right direction, the auxiliary positioning structure (12) on the inner side being a first auxiliary positioning structure (12A), the first auxiliary positioning structure (12A) being inserted into the first through hole (211); And / or, the bolster includes a second type of bolster (21B), the second type of bolster (21B) is provided with a stop structure (212) at the oblique belly structure, and the accommodating portion is formed on the stop structure (212), the support seat (111) is provided with the auxiliary positioning structure (12) on the outer side along the left-right direction, the auxiliary positioning structure (12) on the outer side is a second auxiliary positioning structure (12B), and the second auxiliary positioning structure (12B) is inserted into the accommodating portion formed by the stop structure (212).

4. The positioning tool as claimed in claim 3, characterized in that: The first through hole (211) is a lower water drop hole of the first type bolster (21A); And / or, the stop structure (212) comprises a connecting plate (2122) and two first plates (2121), the two first plates (2121) are arranged opposite to each other in the front-to-back direction, the connecting plate (2122) is located at the outer end of the first plate (2121) in the left-right direction and is connected to the two first plates (2121), the upper ends of the first plate (2121) and the connecting plate (2122) are both connected to the oblique belly structure, and the connecting plate (2122) and the two first plates (2121) form the accommodating portion; And / or, the second auxiliary positioning structure (12B) is connected to the outer side wall of the support seat (111) along the left-right direction; And / or, the projections of the support seat (111) and the stop structure (212) in the front-rear direction partially overlap, and the support seat (111) is provided with a avoidance structure for avoiding the stop structure (212); And / or, the support seat (111) is a plate body extending along the front-rear direction.

5. The positioning tool as claimed in claim 3 or 4, characterized in that: When the bolster includes the first type of bolster (21A) and the second type of bolster (21B), at least one of the auxiliary positioning structures (12) is movably connected to the support frame (11) via a locking unit (13), and / or at least one of the auxiliary positioning structures (12) is detachably connected to the support frame (11).

6. The positioning tool as claimed in claim 5, characterized in that: The locking unit (13) comprises a first pin shaft (131) and a second pin shaft (132); the first auxiliary positioning structure (12A) is rotatably connected to the support frame (11) via the first pin shaft (131), and is connected to the support frame (11) via the detachable second pin shaft (132); And / or, the first auxiliary positioning structure (12A) is a rod-shaped structure, and in the left-right direction, the distance from the upper end of the rod-shaped structure to the support seat (111) is greater than the distance from the lower end of the rod-shaped structure to the support seat (111).

7. A transport device, characterized in that: The handling device comprises a walking unit (8) and a positioning tool as claimed in any one of claims 1 to 6.

8. The transport device according to claim 7, characterized in that: The handling device further comprises a fixed frame (4), a lifting guide unit (5) and a lifting drive unit, the support frame (11) of the positioning tool is liftably connected to the fixed frame (4) via the lifting guide unit (5), the lifting drive unit is drivingly connected to the support frame (11), and the walking unit (8) is connected to the fixed frame (4); And / or, the transport device further comprises a detection unit (6), wherein the detection unit (6) comprises at least one of a proximity switch (61) and a laser radar (62); And / or, the walking unit (8) is used for walking on a preset track (9), and the handling device further comprises a winding unit (7), and the winding unit (7) is used for retracting and releasing cables during the walking of the walking unit (8).

9. The transport device according to claim 8, characterized in that: The support frame (11) comprises a lifting seat (113) located at the bottom, the lifting guide unit (5) comprises a guide shaft (51), and the fixed frame (4) comprises a third plate (41) located at both sides of the lifting seat (113), and the two ends of the guide shaft (51) are respectively rotatably connected to the third plates (41) at both sides of the lifting seat (113), and a plurality of guide shafts (51) are respectively arranged on both sides of the lifting seat (113) along a direction perpendicular to the distribution direction of the two third plates (41), and the guide shafts (51) are in rolling contact with the lifting seat (113), and limit plates (52) are arranged at intervals on the guide shafts (51), and the limit plates (52) are used to limit the displacement of the lifting seat (113) along the axial direction of the guide shaft (51); And / or, the lifting drive unit is installed on any one of the fixed frame (4) and the ground, wherein when the lifting drive unit is installed on the ground and the transport device moves to a preset position, the lifting drive unit drives the support frame (11) to rise and fall.

10. A bogie production line, characterized in that: Comprising the transport device according to any one of claims 7 to 9.

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