A loading and unloading device for guide wheels of medical MRI bed

Abstract

The present invention discloses a loading and unloading device for a guide wheel of a medical nuclear magnetic resonance instrument bed plate, which includes a guide rail frame and a placing mechanism arranged in the middle of the guide rail frame, the guide rail frame is provided with a guide wheel loading and unloading mechanism that can slide along the guide rail frame, the guide wheel loading and unloading mechanism includes a machine platform, a loading and unloading cylinder arranged on the machine platform, the output end of the loading and unloading cylinder is provided with a loading and unloading head corresponding to the guide wheel installation position, the end of the loading and unloading head is provided with a loading and unloading port matched with a bolt, the output end of the loading and unloading cylinder drives the loading and unloading head to move to one side of the nuclear magnetic resonance instrument bed plate to press the guide wheel shaft into the installation hole on the nuclear magnetic resonance instrument bed plate, screw the bolt into the guide wheel shaft, and place the end of the bolt in the loading and unloading port, the loading and unloading cylinder pulls back the loading and unloading head, and the loading and unloading head pulls back the bolt to bring out the guide wheel shaft. This scheme completes pre-installation and disassembly by cooperating with the loading and unloading cylinder and the loading and unloading head. Compared with manual installation, it has the advantages of stable pressure and tension, no damage to the product, high installation accuracy and good quality.

Description

Technical Field

[0001] The present invention relates to a device for installing and disassembling a guide wheel of a medical nuclear magnetic resonance instrument bed board, and specifically to a device for installing and disassembling a guide wheel of a medical nuclear magnetic resonance instrument bed board, which is used during the pre-installation and inspection of the guide wheel during the bed board production process, or during the assembly and production process of the guide wheel of the medical nuclear magnetic resonance instrument bed board, and has the advantages of convenient installation, controllable assembly and disassembly force, and can protect the processing object. Background Art

[0002] At present, in the bed plate processing and manufacturing process of the nuclear magnetic resonance apparatus and the bed plate installation production line of the nuclear magnetic resonance apparatus, the installation and inspection of the guide wheel of the bed plate is an important work content, and it is also a work with a large workload. In order to ensure the installation process, it is necessary to give a constant and guided assembly pressure to install the guide wheel together with the guide wheel shaft in place; at the same time, during the inspection and disassembly process, a constant and guided pulling force is also required. Otherwise, the guide wheel bracket is easy to be damaged during operation. However, the current assembly and disassembly method is usually manual vertical knocking or pulling, which often damages the workpiece during operation, and the efficiency is also very low, which cannot fully meet the requirements of high-quality manufacturing.

[0003] A set of guide wheel mounting plates are provided on each side of the MRI bed plate. Each set of guide wheel mounting plates includes two plates, which are used to install the guide wheels. Mounting holes are provided on the outer guide wheel mounting plates. During the pre-installation process, the circular guide wheel shaft needs to be pressed into the mounting hole. After passing the inspection, the pressed-in guide wheel shaft can be removed by screwing in the bolts and pulling them out. Summary of the invention

[0004] 1. Technical issues to be solved

[0005] In view of the deficiencies in the prior art, the present invention provides a loading and unloading device for a guide wheel of a medical magnetic resonance imaging apparatus bed plate, which solves the problems existing in manual installation and disassembly.

[0006] (II) Technical solution

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] A loading and unloading device for a guide wheel of a medical nuclear magnetic resonance instrument bed plate, comprising a guide rail frame and a shelf mechanism arranged in the middle of the guide rail frame, the guide rail frame is provided with a guide wheel loading and unloading mechanism that can slide along the guide rail frame, the nuclear magnetic resonance instrument bed plate is placed above the shelf mechanism, the guide wheel loading and unloading mechanism moves along the guide rail frame to load and unload each guide wheel on the nuclear magnetic resonance instrument bed plate, the guide wheel loading and unloading mechanism comprises a machine platform, a loading and unloading cylinder arranged on the machine platform, the output end of the loading and unloading cylinder is provided with a loading and unloading head that is opposite to the guide wheel installation position, and the end of the loading and unloading head is provided with a The loading and unloading port is through-through and matched with bolts. The loading and unloading port includes two parts, the left side and the right side. The height of the left side part is greater than the diameter of the screw and smaller than the diameter of the guide wheel shaft. The height of the right side part is greater than the maximum diameter of the bolt. The output end of the loading and unloading cylinder drives the loading and unloading head to move to the side of the MRI bed plate to press the guide wheel shaft into the mounting hole on the MRI bed plate, screw the bolt into the guide wheel shaft, and place the end of the bolt in the loading and unloading port. The loading and unloading cylinder pulls back the loading and unloading head, and the loading and unloading head pulls back the bolt to bring out the guide wheel shaft. This solution completes the pre-installation and disassembly of the guide wheel by cooperating with the loading and unloading cylinder and the loading and unloading head at the output end. Compared with manual installation, it has the advantages of stable pressure and tension, no damage to the product during installation, high installation precision and good quality.

[0009] Preferably, the machine is also provided with a limiting mechanism for limiting the guide wheel mounting plate on the bed plate of the nuclear magnetic resonance instrument. The limiting mechanism includes a stand, a mechanical gripper hinged on the stand through a hinge shaft, and a driving cylinder for driving the mechanical gripper to rotate. The hinge shaft passes through the stand and is connected to a transmission arm. The output end of the driving cylinder is connected to the transmission arm. The output end of the driving cylinder is extended and retracted through the transmission arm to the hinge shaft and the mechanical gripper thereon, thereby driving the mechanical gripper to rotate along the hinge shaft. A limiting opening is provided on the mechanical gripper, and the limiting opening can be buckled on the guide wheel mounting plate on the bed plate of the nuclear magnetic resonance instrument to limit the guide wheel mounting plate. The limiting mechanism can further protect the guide wheel mounting plate to avoid deformation of the guide wheel mounting plate during press-fitting and removal.

[0010] Preferably, the bottom of the limit opening is in an eight-shaped shape with a width gradually decreasing from the outside to the inside, which is conducive to the guide wheel mounting plate entering the limit opening when the robot claw is buckled down.

[0011] Preferably, the shelf mechanism includes a lifting cylinder, a lifting frame mounted on the guide rail frame, a rotating seat arranged on the top of the lifting frame, and a shelf plate placed on the rotating seat. The piston rod end of the lifting cylinder is connected to the rotating seat, and the shelf plate can rotate 360° around the rotating seat. The direction can be adjusted to achieve single-sided operation, which is more flexible in actual operation.

[0012] Preferably, the lifting frame is provided with two groups, which include a first horizontal square tube fixed on the guide rail frame, a second horizontal square tube fixed on the bottom of the rotating seat and two hinged X-shaped support frames arranged between the two square tubes; the side of the first horizontal square tube is provided with an opening to form a track, three of the four ends of the two support frames are hinged to the above-mentioned two horizontal square tubes, and the remaining one end is placed in the track and is slidably connected to the first horizontal square tube.

[0013] Preferably, the output end of the loading and unloading cylinder is a piston rod, and the length of the piston rod is adjustable; the pressure and tension of the loading and unloading cylinder are adjustable.

[0014] Preferably, the guide rail frames on both sides of the shelf mechanism are symmetrical to each other, and two slide rails are provided on the top of the guide rail frame on one side of the shelf mechanism; two limit blocks with adjustable width are provided at the bottom of the machine, a connecting rod is provided between the limit blocks, a first roller is provided on the connecting rod, the two limit blocks are placed on the left and right sides of one of the slide rails, and the roller on the connecting rod is placed on the slide rail; a second roller is also provided at the bottom of the machine, and the second roller is placed on another slide rail.

[0015] The present invention has the following beneficial effects: the present invention completes the pre-installation and disassembly of the guide wheel through the cooperation of the loading and unloading cylinder and the loading and unloading head at the output end. Compared with manual installation, it has the advantages of stable pressure and tension, no damage to the product during installation, high installation accuracy and good quality.

[0016] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through study and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a side view of the present invention.

[0018] Figure 2 It is the front view of the present invention.

[0019] Figure 3 It is a top view of the present invention.

[0020] Figure 4 yes Figure 3 A partial enlarged view of the middle guide wheel loading and unloading mechanism.

[0021] In the figure: 1-guide rail frame, 11-slide rail, 2-MRI bed plate, 21-guide wheel mounting plate, 31-machine table, 32-loading and unloading cylinder, 33-loading and unloading head, 41-stand, 42-hinge shaft, 43-transmission arm, 44-driving cylinder, 45-mechanical claw, 451-limiting port, 51-lifting cylinder, 521-first horizontal square tube, 522-first horizontal square tube, 523-support frame, 53-rotating seat, 54-shelf plate, 61-limiting block, 62-first roller, 63-second roller. DETAILED DESCRIPTION

[0022] The specific contents of the present invention are described in detail below with reference to the accompanying drawings and embodiments.

[0023] like Figure 1-Figure 4 As shown, the present invention provides a technical solution: a loading and unloading device for a guide wheel of a medical nuclear magnetic resonance instrument bed plate, which includes a guide rail frame and a shelf mechanism 1 arranged in the middle of the guide rail frame, the guide rail frame 1 is provided with a guide wheel loading and unloading mechanism that can slide along the guide rail frame 1, the nuclear magnetic resonance instrument bed plate 2 is placed above the shelf mechanism, the guide wheel loading and unloading mechanism moves along the guide rail frame 1 to load and unload each guide wheel on the nuclear magnetic resonance instrument bed plate 2, the guide wheel loading and unloading mechanism includes a machine table 31, a loading and unloading cylinder 32 arranged on the machine table 31, the output end of the loading and unloading cylinder 32 is provided with a loading and unloading head 33 opposite to the guide wheel installation position, and the loading and unloading The end of the head 33 is provided with a loading and unloading port that cooperates with the bolt. The loading and unloading port is through-through from front to back and includes two parts, a left side and a right side. The height of the left side part is greater than the diameter of the screw and smaller than the diameter of the guide wheel shaft, and the height of the right side part is greater than the maximum diameter of the bolt. The output end of the loading and unloading cylinder 32 drives the loading and unloading head 33 to move to one side of the nuclear magnetic resonance instrument bed board 2 to press the guide wheel shaft into the mounting hole on the nuclear magnetic resonance instrument bed board 2, screw the bolt into the guide wheel shaft, and place the end of the bolt in the loading and unloading port. The loading and unloading cylinder 32 pulls back the loading and unloading head 33, and the loading and unloading head 33 pulls back the bolt to bring out the guide wheel shaft. This scheme completes the pre-installation and disassembly of the guide wheel by cooperating with the loading and unloading cylinder 32 and the loading and unloading head 33 at its output end. Compared with manual installation, it has the advantages of stable pressure and tension, no damage to the product during installation, high installation accuracy and good quality.

[0024] Preferably, the machine table 31 is also provided with a limiting mechanism for limiting and protecting the guide wheel mounting plate 21 on the nuclear magnetic resonance instrument bed plate 2. The limiting mechanism includes a stand 41, a mechanical gripper 45 hinged on the stand 41 through a hinge shaft 42, and a driving cylinder 44 for driving the mechanical gripper 45 to rotate. The hinge shaft 42 passes through the stand 41 and is connected to a transmission arm 43. The output end of the driving cylinder 44 is connected to the transmission arm 43. The output end of the driving cylinder 44 is extended and retracted through the transmission arm 43 to the hinge shaft 42 and the mechanical gripper 45 thereon, thereby driving the mechanical gripper 45 to rotate along the hinge shaft 42. The mechanical gripper 45 is provided with a limiting opening 451, which can be buckled on the guide wheel mounting plate 21 on the nuclear magnetic resonance instrument bed plate 2 to limit the guide wheel mounting plate 21. The limiting mechanism can further protect the guide wheel mounting plate 21 to avoid deformation of the guide wheel mounting plate 21 during press-fitting and removal.

[0025] Preferably, the bottom of the limit opening 451 is in an eight-shaped shape with a width gradually decreasing from the outside to the inside, which facilitates the guide wheel mounting plate 21 to enter the limit opening 451 when the robot claw 45 is buckled down.

[0026] Preferably, the shelf mechanism includes a lifting cylinder 51, a lifting frame installed on the guide rail frame 1, a rotating seat 53 arranged on the top of the lifting frame, and a shelf plate 54 placed on the rotating seat 53. The piston rod end of the lifting cylinder 51 is connected to the bottom of the rotating seat 53, and the shelf plate 54 can rotate 360° around the rotating seat 53. The direction can be adjusted to achieve single-sided operation, which is more flexible in actual operation.

[0027] Preferably, the lifting frame is provided with two groups, which include a first horizontal square tube 521 fixed on the guide rail frame 1, a second horizontal square tube 522 fixed on the bottom of the rotating seat 53 and two hinged X-shaped support frames 523 arranged between the two square tubes; the side of the first horizontal square tube 521 is provided with an opening to form a track, three of the four ends of the two support frames 523 are hinged to the above-mentioned two horizontal square tubes, and the remaining one end is placed in the track and slidably connected to the first horizontal square tube 521.

[0028] Preferably, the output end of the loading and unloading cylinder 32 is a piston rod thereof, and the length of the piston rod is adjustable; the pressure and tension of the loading and unloading cylinder 32 are adjustable.

[0029] Preferably, the guide rail frames 1 on both sides of the shelf mechanism are symmetrical to each other, and two slide rails 11 are provided on the top of the guide rail frame 1 on one side of the shelf mechanism; two limit blocks 61 with adjustable width are provided at the bottom of the machine table 31, and a connecting rod is provided between the limit blocks 61, and a first roller 62 is provided on the connecting rod. The two limit blocks 61 are placed on the left and right sides of one of the slide rails 11, and the roller on the connecting rod is placed on the slide rail 11; a second roller 63 is also provided at the bottom of the machine table 31, and the second roller 63 is placed on the other slide rail 11.

[0030] Preferably, the machine platform 31 is also provided with switches for controlling the driving cylinder 44 and the loading and unloading cylinder 32, and loading and unloading can be performed by manually controlling the two switches.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. A loading and unloading device for guide wheels of a medical nuclear magnetic resonance instrument bed plate, comprising a guide rail frame and a shelf mechanism arranged in the middle of the guide rail frame, the guide rail frame is provided with a guide wheel loading and unloading mechanism that can slide along the guide rail frame, the nuclear magnetic resonance instrument bed plate is placed above the shelf mechanism, and the guide wheel loading and unloading mechanism moves along the guide rail frame to load and unload each guide wheel on the nuclear magnetic resonance instrument bed plate, characterized in that: The guide wheel loading and unloading mechanism includes a machine platform and a loading and unloading cylinder arranged on the machine platform. The output end of the loading and unloading cylinder is provided with a loading and unloading head corresponding to the guide wheel installation position. The end of the loading and unloading head is provided with a front-to-back through-loading and unloading port cooperating with the bolt. The loading and unloading port includes a left side and a right side. The height of the left side part is greater than the diameter of the screw and smaller than the diameter of the guide wheel shaft, and the height of the right side part is greater than the maximum diameter of the bolt. The output end of the loading and unloading cylinder drives the loading and unloading head to move to one side of the nuclear magnetic resonance instrument bed board to press the guide wheel shaft into the installation hole on the nuclear magnetic resonance instrument bed board, screw the bolt into the guide wheel shaft, and place the end of the bolt in the loading and unloading port. The loading and unloading cylinder pulls back the loading and unloading head, and the loading and unloading head pulls back the bolt to bring out the guide wheel shaft. The machine platform is also provided with a device for limiting the guide wheel mounting plate on the nuclear magnetic resonance instrument bed board. The limiting mechanism for position protection comprises a vertical frame, a mechanical gripper hinged on the vertical frame through a hinge shaft, and a driving cylinder for driving the mechanical gripper to rotate, the hinge shaft passes through the vertical frame and is connected with a transmission arm, the output end of the driving cylinder is connected with the transmission arm, the output end of the driving cylinder is extended and retracted, and is transmitted to the hinge shaft and the mechanical gripper thereon through the transmission arm, thereby driving the mechanical gripper to rotate along the hinge shaft; a limiting opening is provided on the mechanical gripper, and the limiting opening can be buckled on the guide wheel mounting plate on the bed board of the nuclear magnetic resonance instrument to limit the guide wheel mounting plate; the shelf mechanism comprises a lifting cylinder, a lifting frame installed on the guide rail frame, a rotating seat arranged on the top of the lifting frame, and a shelf plate placed on the rotating seat, the piston rod end of the lifting cylinder is connected to the rotating seat, and the shelf plate can rotate 360° around the rotating seat.

2. The loading and unloading device for the guide wheel of the bed plate of a medical nuclear magnetic resonance apparatus according to claim 1, characterized in that: The bottom of the limit opening is in an eight-shaped shape with a width that gradually decreases from the outside to the inside, which is conducive to the guide wheel mounting plate entering the limit opening when the robot claw is buckled down.

3. The loading and unloading device for the guide wheel of the bed plate of a medical magnetic resonance imaging apparatus according to claim 1, characterized in that: The lifting frame is provided with two groups, which include a first horizontal square tube fixed on the guide rail frame, a second horizontal square tube fixed on the bottom of the rotating seat and two hinged X-shaped support frames arranged between the two square tubes; an opening is arranged on the side of the first horizontal square tube to form a track, three of the four ends of the two support frames are hinged to the above-mentioned two horizontal square tubes, and the remaining one end is placed in the track and slidably connected to the first horizontal square tube.

4. The loading and unloading device for the guide wheel of the bed plate of a medical magnetic resonance imaging apparatus according to claim 1, characterized in that: The output end of the loading and unloading cylinder is its piston rod, and the length of the piston rod is adjustable; the pressure and tension of the loading and unloading cylinder are adjustable.

5. The loading and unloading device for the guide wheel of the bed plate of a medical MRI apparatus according to claim 1, characterized in that: The guide rail frames on both sides of the shelf mechanism are symmetrical to each other, and two slide rails are arranged on the top of the guide rail frame on one side of the shelf mechanism; two limit blocks with adjustable width are arranged at the bottom of the machine, a connecting rod is arranged between the limit blocks, a first roller is arranged on the connecting rod, the two limit blocks are placed on the left and right sides of one of the slide rails, and the roller on the connecting rod is placed on the slide rail; a second roller is also arranged at the bottom of the machine, and the second roller is placed on another slide rail.

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