Special fixture for upper center plate of railway train

Abstract

The utility model relates to the technical field of clamps, in particular to a special clamp for a center plate on a railway train, which comprises a mounting table arranged on a machining table, a connecting seat is fixedly arranged on the mounting table, a bearing table for placing the center plate is fixedly arranged at the top of the connecting seat, and a fixing mechanism for centering, positioning and locking the center plate is arranged at the bottom of the bearing table. The fixing mechanism comprises a driving assembly located at the bottom of the bearing table, the driving assembly is hinged to the bottoms of four sliding blocks, and the four sliding blocks are slidably arranged in sliding grooves formed in the four corners of the bearing table correspondingly. According to the special clamp for the center plate on the railway train, the center plate can be automatically positioned to the middle position after the four positioning assemblies move towards the middle and make contact with the four corners of the center plate, rapid center positioning of the center plate is achieved, the machining efficiency of the center plate is improved, the four corners of the center plate can be fixed, and the firmness of the center plate in the machining process is ensured; and the machining precision can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of clamps, in particular to a special clamp for a central plate on a railway train. Background Art

[0002] At present, when processing the core disk, it is necessary to use a clamp to fix it. After the core disk is fixed, the processing drill bit needs to be aligned with the center position of the core disk, and then the processing operation is performed. This step can ensure the processing accuracy of the processing drill bit. In order to omit this step, the core disk needs to be accurately placed in the center position of the processing. When the core disk is installed on the clamp, it is difficult to align the center position of the core disk with the processing drill bit at one time. In this way, the position of the core disk needs to be adjusted multiple times, and the adjustment takes a certain amount of time, thereby reducing the processing efficiency of the core disk. Utility Model Content

[0003] In view of the deficiencies of the prior art, the utility model provides a special clamp for a center plate on a railway train, which solves the technical problem that the position needs to be adjusted multiple times when fixing the center plate, thus affecting the processing efficiency.

[0004] In order to solve the above technical problems, the utility model provides the following technical solutions: a special clamp for a center plate on a railway train, comprising a mounting table arranged on a processing table, a connecting seat fixedly arranged on the mounting table, a bearing table for placing the center plate fixedly arranged on the top of the connecting seat, and a fixing mechanism for centering and locking the center plate arranged at the bottom of the bearing table;

[0005] The fixing mechanism includes a driving assembly at the bottom of the supporting platform, the driving assembly is hinged to the bottom of four sliders, the four sliders are respectively slidably arranged in slide grooves opened at the four corners of the supporting platform, and the sliders are fixed with a positioning assembly that interferes with the corners of the core disk and a locking assembly that is crimped on the surface of the core disk, and the positioning assembly is located on the inner side of the locking assembly.

[0006] Preferably, two symmetrically arranged insertion rails are fixedly provided at the bottom of the mounting table, and the insertion rails are inserted into the fixing grooves on the processing table.

[0007] Preferably, both ends of the mounting platform are respectively threadedly connected with hexagon socket bolts.

[0008] Preferably, the driving assembly includes a motor mounted on a mounting platform, a gear being fixedly provided on the output shaft of the motor, the gear being meshed with a rack, the rack being fixedly connected to the bottom of a rotating ring, the rotating ring being rotatably connected to the bottom of the supporting platform, and the rotating ring being hinged to the bottom surfaces of four sliders respectively through four connecting rods.

[0009] Preferably, the positioning assembly includes a centering block rotatably connected to the sliding block via a rotating shaft, the centering block is "L"-shaped, and both ends of the centering block are rotatably connected to pressure wheels.

[0010] Preferably, the locking assembly includes a cylinder fixedly connected to the bottom of the slider, the telescopic shaft of the cylinder is fixedly connected to the bottom of the movable frame, the movable frame is movably arranged on the slider, a movable groove is opened on the top of the movable frame, a pin is movably arranged in the movable groove, the pin is fixedly connected to one end of the pressure claw, the other end of the pressure claw is crimped to the surface of the core plate, the pressure claw is rotatably connected to the fixed frame, and the fixed frame is fixed to the slider.

[0011] By means of the above technical solution, the utility model provides a special clamp for the center plate of a railway train, which has at least the following beneficial effects:

[0012] 1. The special fixture for the center plate on the railway train is equipped with a fixing mechanism and uses four sets of positioning components to move toward the middle. After contacting the four corners of the center plate, the center plate can be automatically positioned to the middle position, thereby realizing rapid centering of the center plate, improving the processing efficiency of the center plate, and being able to fix the four corners of the center plate to ensure the firmness of the center plate during processing, thereby improving the processing accuracy.

[0013] 2. The special fixture for the center plate of the railway train is equipped with a plug-in rail and a hexagon socket bolt. The horizontal position of the mounting table can be adjusted by the hexagon socket bolt, which is convenient for adjustment according to actual processing needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application:

[0015] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the installation platform of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the bottom driving assembly of the load-bearing platform of the utility model;

[0018] Figure 4 It is a structural schematic diagram of the positioning component and the locking component on the slider of the utility model;

[0019] Figure 5 It is a structural schematic diagram of the pressure claw of the utility model.

[0020] Reference numerals:

[0021] 1. Mounting table; 11. Plug-in rail; 12. Hexagon socket bolt; 2. Connecting seat; 3. Load-bearing table; 4. Fixing mechanism; 41. Motor; 42. Gear; 43. Rack; 44. Rotating ring; 45. Connecting rod; 46. Slider; 47. Centering block; 48. Pressure wheel; 49. Cylinder; 410. Movable frame; 411. Pin shaft; 412. Pressure claw; 413. Fixed frame. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] On a train, the center plate is a component installed between the car body and the bogie. It consists of an upper center plate and a lower center plate. The upper center plate is connected to the car body, and the lower center plate is connected to the bogie. In addition to supporting and transmitting the vertical load of the car body, when the vehicle is traveling on a curve, the upper and lower center plates can rotate relative to each other to ensure the safe operation of the vehicle.

[0024] Embodiment 1:

[0025] Based on the technical defects of the existing technology that affect the processing efficiency due to multiple adjustments to the center plate position, please refer to Figure 1-Figure 5 The utility model provides a special clamp for the center plate of a railway train. Four groups of positioning components are moved toward the middle. After contacting the four corners of the center plate, the center plate can be automatically positioned in the middle position, thereby realizing the rapid centering of the center plate. A connecting seat 2 is fixedly provided on the mounting table 1, and a bearing platform 3 for placing the center plate is fixedly provided on the top of the connecting seat 2. A fixing mechanism 4 for centering and locking the center plate is provided at the bottom of the bearing platform 3. First, the mounting table 1 is fixed on the processing table, and then the center plate is placed on the bearing platform 3, and finally the center plate is fixed by the fixing mechanism 4.

[0026] In order to avoid repeated adjustment of the position of the core disk when installing the core disk, a fixing mechanism 4 is set to realize automatic centering and fixing of the core disk. The fixing mechanism 4 includes a driving component at the bottom of the supporting platform 3, and the driving component is hinged to the bottom of four sliders 46. The four sliders 46 are respectively slidably set in the slide grooves opened at the four corners of the supporting platform 3. The sliders 46 are fixed with a positioning component that interferes with the corner of the core disk and a locking component crimped on the surface of the core disk. The positioning component is on the inner side of the locking component. The driving component is used to drive the four groups of sliders 46 to move, and the positioning component and locking component on the sliders 46 are used to achieve the purpose of centering and locking the core disk.

[0027] In order to facilitate the automatic centering of the center plate, a driving assembly is provided to provide power for the movement of the slider 46, and the four groups of sliders 46 can be moved synchronously. The driving assembly includes a motor 41 installed on the mounting platform 1. A gear 42 is fixedly provided on the output shaft of the motor 41. The gear 42 is meshed with a rack 43. The rack 43 is fixedly connected to the bottom of a rotating ring 44. The rotating ring 44 is rotatably connected to the bottom of the supporting platform 3. The rotating ring 44 is hinged to the bottom surfaces of the four sliders 46 through four connecting rods 45. The motor 41 drives the gear 42 to rotate. The gear 42 drives the rotating ring 44 to rotate by meshing with the rack 43. The rotating ring 44 drives the four sliders 46 to move through the connecting rod 45.

[0028] In order to ensure that the center disk is in the center position of the processing, a positioning assembly is set to automatically adjust the position of the center disk, and the positioning assembly includes a centering block 47 connected to the slider 46 through a rotating shaft. The centering block 47 is "L"-shaped, and both ends of the centering block 47 are rotatably connected to pressure wheels 48; when the slider 46 moves, it drives the positioning block to move, and the positioning block drives the pressure wheel 48 to contact the corner of the center disk, so that the four centering blocks 47 can synchronously adjust the position of the center disk toward the middle to achieve the center positioning of the center disk.

[0029] In order to prevent the core disk from moving during the processing, a locking assembly is provided to fix the core disk, and the locking assembly includes a cylinder 49 fixedly connected to the bottom of the slider 46, the telescopic shaft of the cylinder 49 is fixedly connected to the bottom of the movable frame 410, the movable frame 410 is movably arranged on the slider 46, the top of the movable frame 410 is provided with a movable groove, and a pin 411 is movably arranged in the movable groove, the pin 411 is fixedly connected to one end of a pressure claw 412, and the other end of the pressure claw 412 is crimped on the surface of the core disk, the pressure claw 412 is rotatably connected to the fixed frame 413, and the fixed frame 413 is fixed to the slider 46, the cylinder 49 is used to drive the movable frame 410 to move up, and the movable frame 410 drives the pressure claw 412 to rotate through the pin 411, and one end of the pressure claw 412 is just crimped on the surface of the core disk, thereby fixing the core disk.

[0030] Embodiment 2:

[0031] To facilitate the installation of the fixture on the processing table for subsequent processing of the center plate, please refer to Figure 1 and Figure 2 On the basis of the first embodiment, two symmetrically arranged insertion rails 11 are fixedly provided at the bottom of the mounting table 1. The insertion rails 11 are inserted into the fixing grooves on the processing table. The fixture can be fixed on the processing table by the insertion rails 11 for easy disassembly.

[0032] In order to facilitate the adjustment of the position of the fixture on the processing table, hexagon socket bolts 12 are respectively threadedly connected to both ends of the mounting table 1. The hexagon socket bolts 12 can be used to fix the mounting table 1 to prevent the mounting table 1 from moving during use.

[0033] Through the above embodiments, it can be known that the use process of the present device is to first insert the clamp into the fixing groove on the processing table through the insertion rail 11, then fix the mounting table 1 with the hexagon socket bolt 12, and then place the core disk on the supporting table 3, and then use the motor 41 to drive the gear 42 to rotate, and the gear 42 drives the rotating ring 44 to rotate through the meshing action with the rack 43, and the rotating ring 44 drives the four sliders 46 to move through the connecting rod 45, and the slider 46 drives the positioning block to move when it moves, and the positioning block drives the pressure wheel 48 to contact the corner of the core disk, so that the four centering blocks 47 can synchronously adjust the position of the core disk to the middle to realize the center positioning of the core disk, and finally use the cylinder 49 to drive the movable frame 410 to move upward, and the movable frame 410 drives the pressure claw 412 to rotate through the pin shaft 411, and one end of the pressure claw 412 is just pressed on the surface of the core disk to realize the fixation of the core disk.

[0034] It should be noted that the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A special clamp for a center plate of a railway train, comprising a mounting table (1) arranged on a processing table, characterized in that: The mounting platform (1) is fixedly provided with a connecting seat (2), the top of the connecting seat (2) is fixedly provided with a bearing platform (3) for placing the core plate, and the bottom of the bearing platform (3) is provided with a fixing mechanism (4) for centering and locking the core plate; The fixing mechanism (4) includes a driving component located at the bottom of the supporting platform (3), the driving component is hinged to the bottom of four sliders (46), the four sliders (46) are respectively slidably arranged in slide grooves opened at the four corners of the supporting platform (3), and the sliders (46) are fixed with a positioning component that contacts the corner of the core disk and a locking component that is pressed against the surface of the core disk, and the positioning component is located on the inner side of the locking component.

2. The special clamp for the center plate of a railway train according to claim 1, characterized in that: Two symmetrically arranged insertion rails (11) are fixedly arranged at the bottom of the mounting platform (1), and the insertion rails (11) are inserted into fixed grooves on the processing platform.

3. The special clamp for the center plate of a railway train according to claim 1, characterized in that: Both ends of the mounting platform (1) are respectively threadedly connected with hexagon socket bolts (12).

4. The special clamp for the center plate of a railway train according to claim 1, characterized in that: The driving assembly comprises a motor (41) mounted on a mounting platform (1), a gear (42) being fixedly arranged on an output shaft of the motor (41), the gear (42) being meshed with a rack (43), the rack (43) being fixedly connected to the bottom of a rotating ring (44), the rotating ring (44) being rotatably connected to the bottom of a bearing platform (3), and the rotating ring (44) being hingedly connected to the bottom surfaces of four sliding blocks (46) respectively through four connecting rods (45).

5. The special clamp for the center plate of a railway train according to claim 1, characterized in that: The positioning assembly comprises a centering block (47) rotatably connected to a slider (46) via a rotating shaft. The centering block (47) is L-shaped, and both ends of the centering block (47) are rotatably connected to pressure wheels (48).

6. The special clamp for the center plate of a railway train according to claim 1, characterized in that: The locking assembly comprises a cylinder (49) fixedly connected to the bottom of the slider (46); the telescopic shaft of the cylinder (49) is fixedly connected to the bottom of the movable frame (410); the movable frame (410) is movably arranged on the slider (46); a movable groove is provided on the top of the movable frame (410); a pin shaft (411) is movably arranged in the movable groove; the pin shaft (411) is fixedly connected to one end of a pressure claw (412); the other end of the pressure claw (412) is pressed against the surface of the core plate; the pressure claw (412) is rotatably connected to a fixed frame (413); and the fixed frame (413) is fixedly connected to the slider (46).

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