Wheelchair hand push ring roundness correcting and shaping device

Abstract

The utility model discloses a wheel chair hand push ring roundness correcting and shaping device, which belongs to the technical field of roundness correcting machines and comprises a base and a rotating table rotatably arranged on the base. An avoiding type inner support limiting mechanism is arranged on the rotating table, the avoiding type inner support limiting mechanism comprises a centering inner support limiting assembly and a synchronous driving assembly, and a limiting roundness correction mechanism is arranged on the outer side of the rotating table; by means of the mode, when feeding and discharging operation is conducted on the hand-push ring, the highest position of the centering inner supporting limiting assembly is lower than the upper surface of the rotating table, so that the hand-push ring can be horizontally pushed on the conveying belt or the supporting platform with the same height as the upper surface of the rotating table and on the rotating table; the centering inner supporting limiting assembly is opened to support the hand pushing ring from the inner side of the hand pushing ring, the centering inner supporting limiting effect of the hand pushing ring is achieved, the hand pushing ring is located at the same position all the time before roundness correction work, and batch and continuous roundness correction work of the hand pushing ring is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to a roundness correcting machine technical field, concretely relates to a wheelchair hand push ring roundness correcting and shaping device. BACKGROUND

[0002] The hand push ring of the wheelchair is an important component of the manual wheelchair, and the user drives the wheelchair to move by pushing it.

[0003] In order to ensure the driving effect of the hand push ring, the hand push ring needs to go through the roundness correcting and shaping operation before leaving the factory, and the conventional roundness correcting machine realizes the fixation of the hand push ring through the inner support structure or the profiling jig, and the way will block the translation of the hand push ring from the inner side of the hand push ring, so the mechanical arm or manual work is needed to lift the hand push ring to realize the material moving operation of the hand push ring, thereby reducing the roundness correcting efficiency of the hand push ring, and being not conducive to the batch and continuous roundness correcting work of the hand push ring.

[0004] Based on this, the utility model designs a wheelchair hand push ring roundness correcting and shaping device to solve the above problems. UTILITY MODEL CONTENTS

[0005] In view of the above shortcomings existing in the prior art, the utility model provides a wheelchair hand push ring roundness correcting and shaping device.

[0006] To achieve the above purpose, the utility model realizes through the following technical schemes:

[0007] A wheelchair hand push ring roundness correcting and shaping device, which comprises a base and a rotating table rotatably arranged on the base;

[0008] The rotating table is provided with an avoiding type inner support limiting mechanism, the avoiding type inner support limiting mechanism comprises a centering inner support limiting assembly that can be completely lower than the upper surface of the rotating table when being retracted and a synchronous driving assembly, the centering inner support limiting assembly is arranged in multiple groups and is uniformly distributed at equal intervals in a circumferential array on the rotating table, and the synchronous driving assembly is arranged at the lower end of the rotating table and is used for driving all the centering inner support limiting assemblies to move synchronously; a limiting roundness correcting mechanism is arranged on the outer side of the rotating table, and the centering inner support limiting assembly and the limiting roundness correcting mechanism cooperate to perform the roundness correcting operation on the hand push ring.

[0009] Further, the centering inner support limiting assembly comprises an inner roundness correcting wheel, a vertical moving block, a horizontal moving block, a fixed side plate and a linkage vertical moving assembly, the rotating table is provided with a containing groove for the movement of the inner roundness correcting wheel, the fixed side plates are fixedly installed on the two sides of the containing groove at the lower end of the rotating table in a symmetrical manner, the horizontal moving block is horizontally movably installed in the inner side of the fixed side plate through a limiting structure, the vertical moving block is vertically slidably installed on the inner side of the horizontal moving block, and the inner roundness correcting wheel is rotatably installed on the top of the vertical moving block through a bearing.

[0010] Further, the linkage vertical moving assembly comprises a sliding rod and a sliding groove, the sliding groove is arranged on the fixed side plate, and the side wall of the vertical moving block is fixedly provided with the sliding rod which is in limited sliding connection with the sliding groove.

[0011] Further, the sliding groove is composed of a horizontal groove and an inclined groove, the inclined groove is arranged at one end of the fixed side plate close to the rotation center of the rotary table, and one end of the inclined groove close to the rotation center of the rotary table is inclined downward.

[0012] Further, the synchronous driving assembly comprises a connecting rod, a gear ring, a gear and a motor, the gear ring is fixedly arranged at the lower end of the rotary table, the connecting rod is arranged between the horizontal moving block of each centering inner support limiting assembly and the gear ring, and the two ends of the connecting rod are hingedly connected with the horizontal moving block and the gear ring respectively; the motor is fixedly arranged at the lower end of the rotary table, and the output end of the motor is fixedly provided with the gear which is in meshing connection with the gear ring.

[0013] Further, the limiting and correcting mechanism comprises a horizontal moving sliding table, an outer correcting wheel, a second stand, a vertical limiting assembly and an outer correcting assembly, the horizontal moving sliding table is arranged on one side of the rotary table, the moving end of the horizontal moving sliding table is fixedly provided with a first stand, and the second stand is arranged on the side surface of the rotary table and located at the opposite side of the first stand; the outer correcting assembly for cooperating with the inner correcting wheel is arranged on the first stand, and the top of the first stand and the second stand is provided with the vertical limiting assembly.

[0014] Further, the outer correcting assembly comprises the outer correcting wheel, and the two outer correcting wheels are rotationally connected with the first stand through bearings and symmetrically arranged on the two sides of the first stand, so as to cooperate with the inner correcting wheel to realize the correcting operation on the hand pushing ring.

[0015] Further, the outer correcting assembly further comprises a micrometer arranged on the first stand and used for monitoring whether the hand pushing ring is qualified during the correcting operation on the hand pushing ring.

[0016] Compared with the prior art, the hand pushing ring can be horizontally pushed on the conveying belt or the supporting platform with the same height as the upper surface of the rotary table and on the rotary table to realize the rapid material moving operation on the hand pushing ring, and when the hand pushing ring is in place on the rotary table, the synchronous driving assembly drives the centering inner support limiting assembly to be opened to support the hand pushing ring from the inner side of the hand pushing ring, so that the centering type inner support limiting effect on the hand pushing ring is realized, the hand pushing ring is always in the same position before the correcting operation, the centering inner support limiting assembly and the limiting and correcting mechanism are matched to effectively increase the correcting efficiency on the hand pushing ring, and the batch and continuous correcting work on the hand pushing ring is facilitated. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description. Obviously, the drawings described below are only some of the embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0018] Figure 1 A perspective view of a wheelchair hand pushing ring roundness correcting and shaping device of the present application Figure 1 ;

[0019] Figure 2 A front view of a wheelchair hand pushing ring roundness correcting and shaping device of the present application

[0020] Figure 3 A perspective view of a wheelchair hand pushing ring roundness correcting and shaping device of the present application Figure 2 ;

[0021] Figure 4 A perspective view of a wheelchair hand pushing ring roundness correcting and shaping device of the present application Figure 3 ;

[0022] Figure 5 A perspective view of a wheelchair hand pushing ring roundness correcting and shaping device of the present application Figure 4 A perspective view of a wheelchair hand pushing ring roundness correcting and shaping device of the present application

[0023] The numbers in the figures respectively represent:

[0024] 1, base; 2, rotating table; 3, avoiding type inner supporting limiting mechanism; 31, centering inner supporting limiting assembly; 311, inner roundness correcting wheel; 312, vertical moving block; 313, horizontal moving block; 314, fixed side plate; 315, sliding rod; 316, sliding groove; 32, synchronous driving assembly; 321, connecting rod; 322, gear ring; 323, gear; 324, motor; 4, limiting roundness correcting mechanism; 41, horizontal moving sliding table; 42, outer roundness correcting wheel; 43, micrometer; 44, first stand; 45, second stand; 46, upper limiting assembly; 461, push cylinder; 462, vertical moving plate; 463, pressing wheel; 5, hand pushing ring. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the embodiments of the present application more clear, the following will combine the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0026] In the following description, the terms "left", "right", "front", "back", "top", "bottom" are oriented in the perspective of the front view.

[0027] Embodiment one: in some embodiments, referring to the description of the drawings Figures 1-5 A wheelchair hand push ring rounding shaping device comprises a base 1 and a rotating table 2 rotatably arranged on the base 1.

[0028] The rotating table 2 is provided with an avoiding type inner support limiting mechanism 3, which comprises a centering inner support limiting assembly 31 that can be completely below the upper surface of the rotating table 2 when retracted and a synchronous driving assembly 32. The centering inner support limiting assembly 31 is arranged in multiple groups and evenly distributed in a circumferential array on the rotating table 2. The synchronous driving assembly 32 is arranged at the lower end of the rotating table 2 and is used to drive all the centering inner support limiting assemblies 31 to move synchronously. The outer side of the rotating table 2 is provided with a limiting rounding mechanism 4. The centering inner support limiting assembly 31 and the limiting rounding mechanism 4 cooperate to perform the rounding operation on the hand push ring 5.

[0029] In the present utility model, when the hand push ring 5 is subjected to the feeding and discharging operation, the highest part of the centering inner support limiting assembly 31 is lower than the upper surface of the rotating table 2, so that the hand push ring 5 can be horizontally pushed on the conveying belt or the supporting platform with the same height as the upper surface of the rotating table 2 and on the rotating table 2, to realize the rapid material moving operation on the hand push ring 5. When the hand push ring 5 is in place on the rotating table 2, the synchronous driving assembly 32 drives the centering inner support limiting assembly 31 to open and support the hand push ring 5 from the inside of the hand push ring 5, to realize the centering type inner support limiting effect on the hand push ring 5, so that the hand push ring 5 is always in the same position before the rounding operation. Then, the limiting rounding mechanism 4 cooperates with the centering inner support limiting assembly 31 to limit the hand push ring 5 horizontally and vertically. The rotating table 2 drives the hand push ring 5 to rotate, to perform the rounding operation on the hand push ring 5. The cooperation of the centering inner support limiting assembly 31 and the limiting rounding mechanism 4 can effectively increase the rounding efficiency on the hand push ring 5, which is beneficial to the batch and continuous rounding work on the hand push ring 5.

[0030] The centering inner support limiting assembly 31 comprises an inner rounding wheel 311, a vertical moving block 312, a horizontal moving block 313, a fixed side plate 314 and a sliding rod 315. The rotating table 2 is provided with a containing groove for the movement of the inner rounding wheel 311. The lower end of the rotating table 2 is fixedly installed with the fixed side plate 314 on both sides of the containing groove in a symmetrical manner. The horizontal moving block 313 is horizontally movably installed in the inner side of the fixed side plate 314 through a limiting structure, which can adopt a dovetail groove and dovetail block limiting structure. The inner side of the horizontal moving block 313 is vertically slidably installed with the vertical moving block 312. The top of the vertical moving block 312 is rotatably installed with the inner rounding wheel 311 through a bearing. The fixed side plate 314 is provided with a sliding groove 316. The side wall of the vertical moving block 312 is fixedly installed with the sliding rod 315 that is limitingly and slidably connected with the sliding groove 316.

[0031] The sliding groove 316 is composed of a horizontal groove and an inclined groove, the inclined groove is located at one end of the fixed side plate 314 close to the rotation center of the rotating table 2, and the end of the inclined groove close to the rotation center of the rotating table 2 is inclined downward, when the sliding rod 315 moves in the inclined groove, the vertical moving block 312 is driven to vertically move upward in the horizontal moving block 313.

[0032] The synchronous driving assembly 32 comprises a connecting rod 321, a gear ring 322, a gear 323 and a motor 324, the gear ring 322 is fixedly installed at the lower end of the rotating table 2, the connecting rod 321 is arranged between each horizontal moving block 313 of the centering inner supporting and limiting assembly 31 and the gear ring 322, and the two ends of the connecting rod 321 are hingedly connected with the horizontal moving block 313 and the gear ring 322 respectively; the motor 324 is fixedly installed at the lower end of the rotating table 2, and the output end of the motor 324 is fixedly installed with the gear 323 which is in meshing connection with the gear ring 322.

[0033] A conductive sliding ring is arranged between the base 1 and the rotating table 2, so that the lines of the motor 324 are prevented from being wound.

[0034] In the utility model, the motor 324 drives the gear ring 322 to rotate through the gear 323, the connecting rod 321 drives the horizontal moving block 313 to move horizontally in the fixed side plate 314 away from the rotation center of the rotating table 2, and then drives the vertical moving block 312 to move horizontally, and the sliding rod 315 and the sliding groove 316 cooperate, so that the vertical moving block 312 moves vertically upward while moving horizontally, the inner calibrating wheel 311 gradually extends from the accommodating groove, and finally the inner calibrating wheel 311 supports the hand pushing ring 5 from the inside of the hand pushing ring 5, so that the centering inner supporting and limiting effect of the hand pushing ring 5 is realized.

[0035] The limiting and calibrating mechanism 4 comprises a horizontal moving sliding table 41, an outer calibrating wheel 42, a second stand 45, a vertical limiting assembly and an outer calibrating assembly, the horizontal moving sliding table 41 is arranged on one side of the rotating table 2, and the horizontal moving sliding table 41 can adopt a pneumatic linear sliding table; the moving end of the horizontal moving sliding table 41 is fixedly installed with a first stand 44, and the second stand 45 is arranged on the side surface of the rotating table 2 and located on the opposite side of the first stand 44; the first stand 44 is provided with the outer calibrating assembly used in cooperation with the inner calibrating wheel 311, and the top of the first stand 44 and the second stand 45 is provided with the vertical limiting assembly.

[0036] The outer calibrating assembly comprises the outer calibrating wheel 42, the two outer calibrating wheels 42 are rotationally connected with the first stand 44 through bearings and symmetrically arranged on the two sides of the first stand 44, and are used for cooperating with the inner calibrating wheel 311 to realize the calibrating operation of the hand pushing ring 5.

[0037] The outer calibrating assembly further comprises a micrometer 43 arranged on the first stand 44, and the micrometer 43 is used for monitoring whether the hand pushing ring 5 is qualified while the calibrating operation of the hand pushing ring 5 is performed.

[0038] The upper limit assembly 46 comprises a push cylinder 461, a vertical moving plate 462 and a pressing wheel 463, the push cylinder 461 is fixedly installed at the top of the first stand 44 or the second stand 45, the vertical moving plate 462 is vertically slidably installed at the side of the first stand 44 or the second stand 45 through a limiting structure, and the output end of the push cylinder 461 is fixedly connected with the vertical moving plate 462; the pressing wheel 463 is rotatably connected with the vertical moving plate 462 through a bearing, is used for pressing the hand pushing ring 5 to the rotating table 2 to realize vertical limiting of the hand pushing ring 5, and the two vertical moving plates 462 are located at the opposite sides of the rotating table 2, so that the vertical moving plates 462 uniformly apply force to the hand pushing ring 5.

[0039] In the utility model, when the hand pushing ring 5 is limited by the inner centering wheel 311, the first stand 44 is driven by the horizontal moving slide 41 to move to the direction of the rotating table 2, until the outer centering wheel 42 and the micrometer 43 abut against the outer edge of the hand pushing ring 5, then the pressing wheels 463 of the upper limit assemblies 46 on the first stand 44 and the second stand 45 vertically move downwards at the same time, the hand pushing ring 5 is limited on the rotating table 2, then the rotating table 2 drives the hand pushing ring 5 to rotate, so that the hand pushing ring 5 is subjected to the cooperation of the inner centering wheel 311 and the outer centering wheel 42 to carry out centering operation, and whether the hand pushing ring 5 is qualified is monitored in real time through the micrometer 43.

[0040] The above embodiment is only used to illustrate the technical scheme of the utility model, rather than limit it; although the utility model is described in detail with reference to the foregoing embodiment, those skilled in the art should understand that: it still can modify the technical scheme recorded in the foregoing embodiment, or make equivalent replacement to part of the technical features; and these modifications or replacements will not make the essence of the corresponding technical scheme deviate from the spirit and scope of the technical scheme of the utility model.

Claims

1. A wheelchair push ring rounding and shaping device, comprising a base (1) and a rotatable rotating platform (2) mounted on the base (1), characterized in that: The rotary table (2) is provided with an avoidance type inner support limiting mechanism (3). The avoidance type inner support limiting mechanism (3) includes a centering inner support limiting component (31) that can be completely lower than the upper surface of the rotary table (2) when it is retracted, and a synchronous drive component (32). There are multiple sets of centering inner support limiting components (31) and they are evenly distributed in a circular array on the rotary table (2). The synchronous drive component (32) is located at the lower end of the rotary table (2) and is used to drive all centering inner support limiting components (31) to move synchronously. A limiting and rounding mechanism (4) is provided on the outer side of the rotary table (2). The centering inner support limiting component (31) and the limiting and rounding mechanism (4) work together to perform rounding operation on the hand push ring (5).

2. The wheelchair push ring rounding and shaping device according to claim 1, characterized in that, The centering inner support limiting assembly (31) includes an inner calibration wheel (311), a vertical moving block (312), a horizontal moving block (313), a fixed side plate (314), and a linkage vertical moving assembly. The rotary table (2) has a receiving groove for the movement of the inner calibration wheel (311). The lower end of the rotary table (2) is symmetrically fixedly installed on both sides of the receiving groove. The horizontal moving block (313) is horizontally movable and installed inside the fixed side plate (314) through a limiting structure. The vertical moving block (312) is vertically slidable and installed inside the horizontal moving block (313). The inner calibration wheel (311) is rotatably installed on the top of the vertical moving block (312) through a bearing. A linkage vertical moving assembly is provided between the fixed side plate (314) and the vertical moving block (312) to enable the vertical moving block (312) to move vertically while moving horizontally.

3. The wheelchair push ring rounding and shaping device according to claim 2, characterized in that, The linkage vertical movement assembly includes a slide rod (315) and a slide groove (316). The slide groove (316) is provided on the fixed side plate (314), and the slide rod (315) is fixedly installed on the side wall of the vertical movement block (312) and is slidably connected to the slide groove (316).

4. The wheelchair push ring rounding and shaping device according to claim 3, characterized in that, The slide (316) is composed of a horizontal groove and an inclined groove. The inclined groove is located at one end of the fixed side plate (314) near the rotation center of the rotary table (2), and the end of the inclined groove near the rotation center of the rotary table (2) slopes downward.

5. The wheelchair push ring rounding and shaping device according to claim 2, characterized in that, The synchronous drive assembly (32) includes a connecting rod (321), a gear ring (322), a gear (323), and a motor (324). The gear ring (322) is fixedly installed at the lower end of the rotary table (2). Each centering inner support limiting assembly (31) has a connecting rod (321) between its transverse block (313) and the gear ring (322), and the two ends of the connecting rod (321) are respectively hinged to the transverse block (313) and the gear ring (322). The motor (324) is fixedly installed at the lower end of the rotary table (2), and the output end of the motor (324) is fixedly installed with a gear (323) that meshes with the gear ring (322).

6. The wheelchair push ring rounding and shaping device according to claim 1, characterized in that, The limiting and calibrating mechanism (4) includes a transverse slide (41), an outer calibrating wheel (42), a second stand (45), a vertical limiting component, and an outer calibrating component. The transverse slide (41) is located on one side of the rotary table (2). The moving end of the transverse slide (41) is fixedly installed with a first stand (44). The second stand (45) is located on the side of the rotary table (2) and on the opposite side of the first stand (44). The first stand (44) is provided with an outer calibrating component for use with the inner calibrating wheel (311). The tops of the first stand (44) and the second stand (45) are both provided with vertical limiting components.

7. The wheelchair push ring rounding and shaping device according to claim 6, characterized in that, The outer calibration assembly includes an outer calibration wheel (42). The two outer calibration wheels (42) are rotatably connected to the first upright (44) through bearings and are symmetrically arranged on both sides of the first upright (44) to cooperate with the inner calibration wheel (311) to realize the calibration operation of the hand push ring (5).

8. The wheelchair push ring rounding and shaping device according to claim 7, characterized in that, The external calibration assembly also includes a micrometer (43) mounted on the first stand (44) for monitoring whether the hand-operated ring (5) is qualified while performing calibration work on the hand-operated ring (5).

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