Secondary framework assembling rack

Abstract

The utility model provides a secondary framework assembling rack, which is used for positioning and connecting a slide way of a secondary framework and each bracket of the secondary framework and comprises a rack body, an adjusting support rod and a plurality of positioning seats, the frame body is used for supporting the secondary framework upwards and enabling the slide way to be suspended outside the frame body; the adjusting support rod is arranged on the frame body and is supported at the upper arch position of the secondary framework; the positioning seats are slidably connected to the same side of the frame body in the axial direction of the adjusting supporting rod and are vertically aligned with the slide ways; wherein each positioning seat is used for sliding to a target position to calibrate the position of each bracket. According to the secondary framework assembling rack, manpower and time are saved, the position of the secondary framework does not need to be adjusted after integral hoisting is completed, and therefore assembling efficiency can be improved, the assembling period can be shortened, and labor cost can be reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of rail vehicle assembly, and in particular relates to a secondary skeleton assembly stand. Background Art

[0002] The secondary frame is a critical load-bearing structure on the roof of rail vehicles, such as subways and EMUs. Its structure directly impacts the installation and aesthetics of the interior roof panels. Typically, rail vehicle air ducts, interior roof panels, and roof lighting are mounted on the secondary frame.

[0003] In actual production, the secondary frame installation process involves pre-installing the roof runners on the brackets, then hoisting the secondary frame to connect it to the runners on the brackets. Once connected, the runners are used to adjust the secondary frame's positioning. Because the secondary frame needs to be lifted and connected to the brackets, this process is labor-intensive, time-consuming, and detrimental to vehicle production cycles and cost control, necessitating urgent improvements. Utility Model Content

[0004] The embodiment of the utility model provides a secondary frame assembly stand, which aims to solve the problem that the secondary frame assembly is time-consuming and labor-intensive, thereby shortening the assembly cycle and cost of the entire vehicle.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: to provide a secondary skeleton assembly stand for positioning and connecting the slide of the secondary skeleton and each bracket of the secondary skeleton, including a frame body, an adjustment support rod, and a plurality of positioning seats; the frame body is used to support the secondary skeleton upward and make the slide suspended on the outside of the frame body; the adjustment support rod is arranged on the frame body and supported on the upper arch position of the secondary skeleton; each positioning seat is respectively connected to the same side of the frame body along the axial direction of the adjustment support rod, and is aligned with the slide up and down; wherein, each positioning seat is respectively used to slide to the target position to calibrate the position of each bracket.

[0006] In one possible implementation, a first T-slot extending along the axial direction of the adjustment support rod is provided on one side of the frame, and at least one first T-bolt is passed through the positioning seat. The T-end of the first T-bolt is slidably embedded in the first T-slot, and the other end of the first T-bolt passes through the positioning seat and is screwed to the first nut.

[0007] In some embodiments, a calibration rod is provided on one side of the frame where the first T-slot is provided, and the calibration rod is provided along an extension direction of the first T-slot.

[0008] Exemplarily, the positioning seat includes a first seat plate and a second seat plate; wherein, the first seat plate is in contact with the side wall of the frame and is penetrated by a first T-bolt; the second seat plate is horizontally connected to the top end of the first seat plate and is flush with the top surface of the frame, and a U-shaped groove is provided on the second seat plate, and the U-shaped groove is suitable for the connecting part of the bracket to pass through.

[0009] For example, the positioning seat also includes a calibration plate, which is connected to the first seat plate and the second seat plate as a whole, and a sliding hole is provided on the calibration plate, and the calibration rod passes vertically through the sliding hole and slides with the sliding hole.

[0010] In a possible implementation, sliding seats are respectively connected to the top surfaces of both ends of the frame body in a radially horizontally slidable manner along the adjusting support rod, and the two ends of the adjusting support rod are respectively connected to the two sliding seats.

[0011] In some embodiments, a second T-slot is provided at both ends of the frame, and at least one second T-bolt is passed through the slide. The T-end of the second T-bolt is slidably embedded in the second T-slot, and the other end of the second T-bolt passes through the slide and is screwed onto the second nut.

[0012] Exemplarily, a top end of the slide is provided with a card slot, and both ends of the adjustment support rod are correspondingly connected to the two card slots.

[0013] For example, a plurality of support sleeves are provided on the adjustable support rod in sequence and spaced apart or adjacent to each other, the peripheral wall of the support sleeve is used to support the upper arch position of the secondary frame, and each support sleeve is suitable for sliding out and being removed from the end of the adjustable support rod.

[0014] In some embodiments, the frame includes two long frames distributed in parallel and spaced apart, two short frames distributed in parallel and spaced apart, four legs, at least two middle legs, and a plurality of diagonal braces; wherein, the two short frames are connected to the two long frames to form a rectangular frame; the four legs are respectively connected to the four corner positions of the rectangular frame, and the four legs all extend downward and support the ground; each middle leg is respectively supported between the two ends of the long frame, and each long frame is connected to at least one middle leg; one end of each diagonal brace is respectively connected to each leg and each middle leg, and the other end is connected to the rectangular frame.

[0015] The beneficial effect of the secondary skeleton assembly stand provided by the present invention is that compared with the existing technology, the secondary skeleton assembly stand of the present invention can pre-connect the slide with the secondary skeleton after stably supporting the secondary skeleton through the cooperation of the frame body and the adjustment support rod, and then slide each positioning seat to the target position in turn, so that the position of each bracket can be calibrated, and after the bracket and the slide are connected and fixed based on the calibrated position, the bracket and the secondary skeleton can be hoisted as a whole, which not only saves manpower and time, but also does not need to adjust the position of the secondary skeleton after the overall hoisting is completed, thereby improving assembly efficiency, shortening assembly cycle, and thus helping to reduce labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the three-dimensional structure of the secondary skeleton assembly stand provided in an embodiment of the present utility model;

[0017] Figure 2 This is a schematic diagram of the connection structure between the positioning seat and the frame in an embodiment of the present utility model;

[0018] Figure 3 A schematic diagram of the three-dimensional structure of the positioning seat used in the embodiment of the present utility model;

[0019] Figure 4 for Figure 1 Schematic diagram of the local enlarged structure at A in the middle;

[0020] Figure 5 This is a schematic diagram of the three-dimensional structure of the slide used in the embodiment of the present utility model.

[0021] In the figure: 10, frame; 101, first T-slot; 102, second T-slot; 11, long frame; 12, short frame; 13, support leg; 14, middle leg; 15, diagonal brace; 16, middle cross brace; 20, adjustment support rod; 21, support sleeve; 22, ring groove; 30, positioning seat; 301, first T-bolt; 302, first nut; 31, first seat plate; 32, second seat plate; 321, U-slot; 33, calibration plate; 331, sliding hole; 40, calibration rod; 50, sliding seat; 501, second T-bolt; 502, second nut; 51, slot. DETAILED DESCRIPTION

[0022] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0023] It should be noted that when an element is referred to as being "disposed on" another element, it may be directly on the other element or indirectly on the other element. It should be understood that the terms "length", "width", "upper", "lower", "front", "back", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, rather than indicating or implying 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 this application. The terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this application, "multiple" and "several" mean two or more, unless otherwise clearly and specifically defined.

[0024] Please also refer to Figure 1 and Figure 2 The secondary skeleton assembly stand provided by the present invention is now described. The secondary skeleton assembly stand is used to position and connect the slideway of the secondary skeleton and each bracket of the secondary skeleton, and includes a frame body 10, an adjustment support rod 20, and a plurality of positioning seats 30; the frame body 10 is used to support the secondary skeleton upward and allow the slideway to be suspended outside the frame body 10; the adjustment support rod 20 is provided on the frame body 10 and supported at the upper arch position of the secondary skeleton; each positioning seat 30 is respectively connected to the same side of the frame body 10 along the axial direction of the adjustment support rod 20, and is aligned with the slideway in the upper and lower directions; wherein each positioning seat 30 is respectively used to slide to the target position to calibrate the position of each bracket.

[0025] First of all, it should be explained that the connection method between the secondary frame and the bracket utilizes the slide on the secondary frame to connect with the fixed code block at the top of the bracket. The existing installation method is to first fix each bracket on the vehicle body according to the required position, and connect the slide based on each fixed code. At this time, the fixed code and the slide are in a sliding fit. Then, after lifting the secondary frame, the secondary frame is fixedly connected to the slide, and the position of the secondary frame is adjusted by using the sliding freedom between the fixed code and the slide. After adjustment, the fixed code is locked and fixed in the corresponding position of the slide.

[0026] Different from the prior art, the usage of the secondary frame assembly stand provided in this embodiment is as follows: first, the secondary frame is placed on the frame body 10 as required, so that the position of its installation slide is suspended in the air and straightened to the outside of the frame body 10, and the position of the adjustment support rod 20 is moved so that the adjustment support rod 20 stably supports the upper arch position of the secondary frame to ensure the stability of the secondary frame, and then the slide is fixedly connected to the secondary frame; then, each positioning seat 30 is adjusted in turn according to the position where the secondary frame needs to be connected to the bracket, and after adjustment, the fixed code is embedded in the slide of the secondary frame, and each fixed code is slid to a position corresponding to each positioning seat 30, and then each fixed code is locked and fixed to the corresponding position of the slide through the connecting piece to realize the calibration of the connection position of each bracket; then each bracket is connected to each fixed code in turn, so that the bracket and the secondary frame form an integral structure; finally, the connected secondary frame and each bracket are hoisted to the vehicle body together.

[0027] Compared with the prior art, the secondary skeleton assembly stand provided in this embodiment can pre-connect the slide to the secondary skeleton after stably supporting the secondary skeleton through the cooperation of the frame body 10 and the adjustment support rod 20, and then slide each positioning seat 30 to the target position in turn, so that the position of each bracket can be calibrated, and the bracket and the secondary skeleton can be hoisted as a whole after the bracket is connected and fixed to the slide based on the calibrated position. This not only saves manpower and time, but also does not require the position of the secondary skeleton to be adjusted after the overall hoisting is completed, thereby improving assembly efficiency, shortening assembly cycle, and thus helping to reduce labor costs.

[0028] In some embodiments, see Figure 2 A first T-slot 101 extending along the axial direction of the adjustment support rod 20 is provided on one side of the frame body 10, and at least one first T-bolt 301 is passed through the positioning seat 30. The T-end of the first T-bolt 301 is slidably embedded in the first T-slot 101, and the other end of the first T-bolt 301 passes through the positioning seat 30 and is screwed with a first nut 302.

[0029] By loosening the first nut 302, the first T-bolt 301 can slide in the first T-slot 101, thereby adjusting the position of the positioning seat 30. After adjusting it into place, the first nut 302 can be tightened again. The adjustment method is simple and labor-saving, and the installation position of each bracket can be quickly calibrated, thereby improving assembly efficiency.

[0030] For some examples, see Figure 1 and Figure 2A calibration rod 40 is provided on one side of the frame body 10 where the first T-slot 101 is provided. The calibration rod 40 is provided along the extension direction of the first T-slot 101. The calibration rod 40 can be a rod with a scale on its peripheral wall. By providing the calibration rod 40, the position of each positioning seat 30 can be accurately adjusted according to the required size, which not only improves operational efficiency but also improves positioning accuracy compared to the method of measuring and positioning with a tape measure, thereby ensuring the connection position accuracy of each bracket and the secondary frame.

[0031] As a specific structure of the positioning seat 30, please refer to Figure 2 and Figure 3 The positioning base 30 includes a first base plate 31 and a second base plate 32. The first base plate 31 is in contact with the side wall of the frame body 10 and is penetrated by a first T-bolt 301. The second base plate 32 is horizontally connected to the top of the first base plate 31 and is flush with the top surface of the frame body 10. The second base plate 32 is provided with a U-shaped groove 321, which is suitable for the bracket's connecting piece to pass through. The contact between the first base plate 31 and the side wall of the frame body 10 can improve the connection stability. At the same time, the U-shaped groove 321 on the second base plate 32 allows the bracket's specific connection position to be determined by inserting the bracket's connecting piece into the U-shaped groove 321, thereby improving the position calibration effect of the positioning base 30 and avoiding position deviation between the bracket and the positioning base 30, which affects the bracket's connection position accuracy.

[0032] It should be noted that if Figure 3 As shown, in some embodiments, the positioning seat 30 further includes a calibration plate 33, which is integrally connected to the first seat plate 31 and the second seat plate 32, and is provided with a sliding hole 331. The calibration rod 40 vertically passes through the sliding hole 331 and slides with the sliding hole 331. The provision of the calibration plate 33 not only improves the overall structural strength of the positioning seat 30, but also utilizes the sliding hole 331 on the calibration plate 33 to radially constrain the calibration rod 40, thereby preventing the calibration rod 40 from bending due to its long length and affecting the measurement accuracy. At the same time, the actual position of the positioning seat 30 can be obtained by observing the scale value on the calibration rod 40 corresponding to the position of the calibration plate 33 at the edge of the sliding hole 331, thereby facilitating the rapid adjustment of each positioning seat 30 to the target position.

[0033] For some possible implementations, see Figure 4Slide seats 50 are respectively connected to the top surfaces of both ends of the frame body 10 for horizontal sliding along the radial direction of the adjustment support rod 20. The two ends of the adjustment support rod 20 are respectively connected to the two slide seats 50. By providing the slide seats 50 at both ends of the adjustment support rod 20, the adjustment support rod 20 is given the freedom of movement along its radial direction. Therefore, by moving the position of the adjustment support rod 20, the peripheral wall of the adjustment support rod 20 can reliably contact the upper arch position of the secondary frame, thereby improving the placement stability of the secondary frame on the frame body 10.

[0034] Specifically, in this embodiment, a second T-slot 102 is provided at both ends of the frame 10, and at least one second T-bolt 501 is passed through the slide 50. The T-end of the second T-bolt 501 is slidably embedded in the second T-slot 102, and the other end of the second T-bolt 501 passes through the slide 50 and is screwed to the second nut 502.

[0035] By loosening the second nut 502, the second T-bolt 501 can slide in the second T-slot 102, thereby adjusting the position of the slide 50. After adjusting into place, the second nut 502 can be re-tightened. The adjustment method is simple and labor-saving, and after adjusting into place, the adjustment support rod 20 can be fixed, thereby improving the support stability of the secondary frame.

[0036] In some embodiments, combined Figure 4 and Figure 5 It is understood that the top of the slide 50 is provided with a slot 51, and the two ends of the adjustment support rod 20 are respectively connected to the two slots 51. The provision of the slots 51 can facilitate the disassembly and assembly of adjustment support rods 20 of different diameters, thereby meeting the stable support requirements of secondary frames with different degrees of arching and improving adaptability.

[0037] In order to avoid axial movement of the adjustment support rod 20, in this embodiment, annular grooves 22 are provided on the peripheral walls of the adjustment support rod 20 corresponding to the positions of each slot 51. The groove walls on both sides of the annular groove 22 are used to form an axial limit by clamping the two side walls of the slide seat 50, thereby improving the stability of the adjustment support rod 20.

[0038] It should be understood that for rail vehicles, the secondary frames of the first and last carriages and the middle carriage are different in structure and have different degrees of arching. Therefore, it is necessary to change the support height of the adjustment support rod 20 to adapt to the assembly requirements of different secondary frames. Figure 1As shown, a plurality of support sleeves 21 are sequentially spaced or adjacently mounted on the adjustable support rod 20. The peripheral walls of the support sleeves 21 are used to support the upper arch position of the secondary frame, and each support sleeve 21 is adapted to be slid out and removed from the end of the adjustable support rod 20. For different secondary frames, the support sleeves 21 can be slid out and removed, and then replaced with support sleeves 21 of an adapted diameter for support. At the same time, for secondary frames with gradually varying degrees of upper arch, such as the front and rear carriages, support sleeves 21 of different diameters can be simultaneously mounted on the adjustable support rod 20, thereby ensuring that each support sleeve 21 can provide stable support for the upper arch position of the secondary frame.

[0039] Figure 1 The figure shows the specific structure of the frame 10, which includes two long frames 11 distributed in parallel and at intervals, two short frames 12 distributed in parallel and at intervals, four legs 13, at least two middle legs 14, and a plurality of diagonal braces 15; wherein, the two short frames 12 are connected to the two long frames 11 to form a rectangular frame; the four legs 13 are respectively connected to the four corners of the rectangular frame, and the four legs 13 all extend downward and support the ground; each middle leg 14 is respectively supported between the two ends of the long frame 11, and each long frame 11 is connected to at least one middle leg 14; one end of each diagonal brace 15 is respectively connected to each leg 13 and each middle leg 14, and the other end is connected to the rectangular frame.

[0040] Each part of the frame 10 can be made of aluminum profiles with grooves on the peripheral walls. The grooves on the peripheral walls of the aluminum profiles can be directly used as the above-mentioned first T-slots 101 and second T-slots 102, thereby saving production costs. Considering that the secondary skeleton is usually longer, an intermediate leg 14 is provided in the middle of the frame 10 for support. At the same time, an intermediate cross brace 16 can also be connected in the middle of the length direction of the rectangular frame to support the adjustable support rod 20, so as to avoid the adjustable support rod 20 being bent due to the long span. At the same time, the use of the intermediate cross brace 16 can also improve the overall structural strength of the frame 10, thereby improving the support stability of the frame 10 on the secondary skeleton.

[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. Secondary skeleton assembly stand, characterized in that: Used to position and connect the slideway of the secondary frame and each bracket of the secondary frame, including: A frame body, used to support the secondary frame upward and allow the slideway to be suspended outside the frame body; An adjusting support rod is provided on the frame and supported at the upper arch position of the secondary frame; A plurality of positioning seats are respectively connected to the same side of the frame body in an axially sliding manner along the adjusting support rod, and are aligned with the slideway in an up-and-down manner; Wherein, each of the positioning seats is used to slide to a target position to calibrate the position of each of the brackets.

2. The secondary skeleton assembly stand according to claim 1, characterized in that: A first T-shaped slot extending along the axial direction of the adjustment support rod is provided on one side of the frame body, and at least one first T-shaped bolt is passed through the positioning seat, the T-shaped end of the first T-shaped bolt is slidably embedded in the first T-shaped slot, and the other end of the first T-shaped bolt passes through the positioning seat and is screwed with a first nut.

3. The secondary skeleton assembly stand according to claim 2, characterized in that: A marking rod is provided on one side of the frame body where the first T-slot is provided, and the marking rod is arranged along the extending direction of the first T-slot.

4. The secondary skeleton assembly stand according to claim 3, characterized in that: The positioning seat comprises: A first seat plate, which is attached to the side wall of the frame and is penetrated by the first T-bolt; The second seat plate is horizontally connected to the top of the first seat plate and is flush with the top surface of the frame body. The second seat plate is provided with a U-shaped groove, and the U-shaped groove is suitable for the connecting piece of the bracket to pass through.

5. The secondary skeleton assembly stand according to claim 4, characterized in that: The positioning seat also includes a calibration plate, which is connected to the first seat plate and the second seat plate as a whole, and a sliding hole is provided on the calibration plate, and the calibration rod vertically passes through the sliding hole and slidably cooperates with the sliding hole.

6. The secondary skeleton assembly stand according to claim 1, characterized in that: The top surfaces at both ends of the frame are respectively connected with sliding seats in a radially horizontal manner along the adjusting support rod, and the two ends of the adjusting support rod are respectively connected to the two sliding seats.

7. The secondary skeleton assembly stand according to claim 6, characterized in that: Both ends of the frame are provided with a second T-slot, the slide seat is provided with at least one second T-bolt, the T-end of the second T-bolt is slidably embedded in the second T-slot, and the other end of the second T-bolt passes through the slide seat and is screwed with a second nut.

8. The secondary skeleton assembly stand according to claim 6, characterized in that: A clamping slot is provided at the top of the slide seat, and two ends of the adjustment support rod are respectively correspondingly clamped in the two clamping slots.

9. The secondary skeleton assembly stand according to claim 8, characterized in that: A plurality of support sleeves are sequentially spaced or adjacently sleeved on the adjusting support rod, the peripheral wall of the support sleeve is used to support the upper arch position of the secondary frame, and each of the support sleeves is suitable for sliding out and being removed from the end of the adjusting support rod.

10. The secondary skeleton assembly stand according to any one of claims 1 to 9, characterized in that: The frame comprises: Two long borders, parallel and spaced apart; Two short frames are arranged in parallel and spaced apart and connected with the two long frames to form a rectangular frame; Four legs, respectively connected to the four corners of the rectangular frame, and the four legs extend downward and support the ground; At least two middle legs are respectively supported between the two ends of the long frame, and each of the long frames is connected to at least one of the middle legs; A plurality of diagonal bracing members have one end connected to each of the supporting legs and each of the middle legs respectively, and the other end connected to the rectangular frame.

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