Piece supply device

Abstract

The invention provides a part supply device which is used for supplying parts to a desired position. The workpiece supply device comprises a base frame, a first shaft, a second shaft, two conveying belts, a bearing piece, a guide piece and a reset piece. The first shaft is arranged on the base frame, and two rotatable first wheels are arranged on the first shaft at intervals; the second shaft is arranged on the base frame, two rotatable second wheels are arranged on the second shaft at intervals, and the second shaft is closer to the expected position relative to the first shaft; each conveying belt is arranged on the first wheel and the second wheel on the same side in a sleeving manner and can be driven by the first wheel and / or the second wheel; the bearing piece is connected with the base frame, and the bearing piece is arranged to bear the part located at the expected position; the guiding piece is rotatably arranged on the second shaft relative to the second shaft and located between the two second wheels, and the guiding piece can rotate between a triggering position and a guiding position. According to the part supply device provided by the invention, the part supply process is simplified, the working hours are saved, and the quality defects caused to parts are reduced.

Description

Technical Field

[0001] The present application relates to the technical field of parts assembly, and in particular to a parts supply device. Background Art

[0002] In the field of parts assembly technology, it is sometimes necessary to sort and feed parts according to a preset configuration. Take the air conditioner high and low pressure pipe assembly as an example. After the high pressure pipe and low pressure pipe of the air conditioner are assembled into the air conditioner high and low pressure pipe assembly, the air conditioner high and low pressure pipe assembly needs to be sorted and fed to the next assembly step in sequence. Previously, the subassembly line usually used two cantilever hanging rods placed roughly horizontally to arrange the air conditioner high and low pressure pipe assemblies on the cantilever hanging rods in sequence. After the air conditioner high and low pressure pipe assembly at the feeding end is taken away, the air conditioner high and low pressure pipe assembly that has been placed on the cantilever hanging rod needs to be moved forward a distance (about 110mm) as a whole to make room for the subsequent air conditioner high and low pressure pipe assembly.

[0003] However, the above structure cannot meet the needs of long-distance sorting and supply, and the process of moving the high and low-pressure pipe assemblies of the air conditioner is likely to cause deformation of the high and low-pressure pipe assemblies of the air conditioner (deformation rate 5%), and the dust caps of the high and low-pressure pipe assemblies of the air conditioner fall off (the falling rate is as high as 7%, and after falling off, dust will enter the inside of the air conditioner pressure pipe, thereby affecting the operation quality of the air conditioner), and it will also cause waste of working hours (about 15s in one beat). Summary of the invention

[0004] To at least partially solve the above-mentioned problems, an embodiment of the present application provides a feeding device for supplying parts to a desired position. The feeding device includes: a base frame, a first axis, a second axis, two conveyor belts, a supporting member, a guide member, and a reset member; the first axis is arranged on the base frame, and two rotatable first wheels are arranged on the first axis at intervals; the second axis is arranged on the base frame, and two rotatable second wheels are arranged on the second axis at intervals, and the second axis is closer to the desired position relative to the first axis; each conveyor belt is sleeved on the first wheel and the second wheel on the same side, and can be driven by the first wheel and / or the second wheel, and when the feeding device supplies parts to the desired position, the parts are supported by the two conveyor belts at the same time; the supporting member is connected to the base frame, and the supporting member is arranged to be opposite to the desired position. The guide member is rotatably arranged on the second axis relative to the second axis and is located between the two second wheels, and the guide member can rotate between the trigger position and the guiding position; wherein, when the guide member is in the trigger position, the guide member is at least partially on the movement trajectory of the part, so that the guide member can contact the part and move to the guiding position under the drive of the part; when the guide member is in the guiding position, the guide member can guide the part from the conveyor belt to the supporting member; the reset member is connected to the guide member, and when the guide member deviates from the trigger position, the reset member can provide the guide member with a force to move toward the trigger position.

[0005] In some embodiments, the guide member includes a guide portion and a limit portion, which are respectively located on opposite sides of the axis of the second shaft, and the dimension of the guide portion in a direction perpendicular to the axis of the second shaft is greater than or equal to the distance from the second shaft to the desired position; wherein, when the guide member is in the trigger position, the guide portion is on the movement trajectory of the part, and at this time, the surface of the guide portion facing the part forms an acute angle with the movement direction of the part on the conveyor belt; when the guide member is in the guiding position, the limit portion is on the movement trajectory of the part, and at this time, the surface of the limit portion facing the part forms a right angle with the movement direction of the part on the conveyor belt.

[0006] In some embodiments, the reset member is a counterweight block, which is disposed at the bottom of the guide member, and the number of the counterweight blocks is one or more.

[0007] In some embodiments, the feeding device also includes a tensioning spring, an installation slider, a first tensioning shaft and two guide blocks, one end of the tensioning spring is connected to the base frame; the installation slider is slidably arranged on the base frame, and the installation slider is connected to the other end of the tensioning spring, and the tensioning spring provides tension for the installation slider; the middle part of the first tensioning shaft is connected to the installation slider through a bearing seat, and two first tensioning wheels are respectively arranged at both ends of the first tensioning shaft, and the two first tensioning wheels are respectively located inside the space surrounded by each conveyor belt, and abut against the conveyor belt to provide tensioning force to the conveyor belt; the guide block is arranged on the base frame, and the guide block is provided with a waist-shaped hole, and the two ends of the first tensioning shaft are respectively passed through the waist-shaped holes of the two guide blocks, and the first tensioning shaft can move in the waist-shaped hole along the extension direction of the waist-shaped hole driven by the installation slider.

[0008] In some embodiments, the feeding device further comprises a third shaft, which is arranged on the base frame and located on one side of the base frame where the second shaft is arranged, and the third shaft is transmission-connected to the second shaft; a hand-cranked wheel is arranged on the first shaft and / or the third shaft.

[0009] In some embodiments, the first shaft, the second shaft and the third shaft are disposed on the base frame through bearing seats, and among the bearing seats of the first shaft, the second shaft and the third shaft, at least one group of bearing seats is adjustably disposed on the base frame.

[0010] In some embodiments, the third shaft is connected to the second shaft via a chain structure; the feeding device also includes a second tensioning shaft, which is adjustably arranged on the base frame, and a second tensioning wheel is arranged on the second tensioning shaft, which is meshed with the chain structure between the third shaft and the second shaft.

[0011] In some embodiments, the conveyor belt is configured as a chain structure, and the first wheel and the second wheel are configured as gears meshing with the chain structure of the conveyor belt; the feeding device also includes two chain support plates, which are arranged on the base frame and are respectively located inside the space enclosed by the two conveyor belts, and the chain support plates are used to lift the load-bearing part of the conveyor belt.

[0012] In some embodiments, the chain support plate is connected to the base frame via an L-shaped bracket, a waist-shaped hole is provided on the L-shaped bracket, the chain support plate is installed on the L-shaped bracket via bolts passing through the waist-shaped hole, and the L-shaped bracket is connected to the base frame in an adjustable position.

[0013] In some embodiments, a plurality of U-shaped pads are arranged at intervals on the conveyor belt, and the U-shaped pads on the two conveyor belts are arranged correspondingly, and the corresponding two U-shaped pads jointly fix the same part; the U-shaped pads and / or the supporting members are made of flexible material.

[0014] The feeding device provided in the embodiment of the present application drives the movement of parts through a conveyor belt, and by reasonably setting the length of the conveyor belt, it can meet the needs of long-distance sorting and feeding. At the same time, by setting guide members and reset members, when the parts pass through the guide members, the parts can be automatically guided from the conveyor belt to the supporting members through the interaction between the parts and the guide members, and the reset member can automatically reset the guide members, thereby simplifying the feeding process, saving working hours, and reducing the quality defects of the parts caused when sorting and feeding. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0016] Figure 1 is a schematic structural diagram of a feeding device provided in an embodiment of the present application;

[0017] Figure 2 It is a partial structural schematic diagram of a feeding device provided in an embodiment of the present application;

[0018] Figure 3 is another partial structural schematic diagram of a feeding device provided in an embodiment of the present application;

[0019] Figure 4 This is another partial structural schematic diagram of the feeding device provided in the embodiment of the present application.

[0020] : Reference numerals: 10, base frame; 20, first axis; 21, first wheel; 22, first hand-cranked wheel; 30, second axis; 31, second wheel; 40, conveyor belt; 41, U-shaped pad; 42, chain support plate; 43, L-shaped bracket; 50, supporting member; 60, guide member; 61, guide part; 62, limiting part; 70, reset member; 81, tensioning spring; 82, mounting slider; 83, first tensioning axis; 84, guide block; 90, third axis; 91, second hand-cranked wheel; 92, second tensioning wheel; 93, second tensioning axis; 100, parts.

[0021] It should be understood that the size of each part shown in the accompanying drawings is not drawn according to the actual proportional relationship. In addition, the same or similar reference numerals represent the same or similar components. DETAILED DESCRIPTION

[0022] The technical scheme of the preferred embodiment of the present application will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection claimed in the present application.

[0023] The embodiment of the present application provides a feeding device for supplying parts to a desired position. Exemplarily, the feeding device can be applied to an assembly production line, such as an automobile air-conditioning assembly line, in which case the parts can be an air-conditioning high- and low-pressure pipe assembly formed by assembling an air-conditioning high-pressure pipe and an air-conditioning low-pressure pipe. It can be understood that the feeding device provided in the embodiment of the present application can also be used for the supply of other similar parts, such as strip-shaped, tubular, stick-shaped or other regular or irregular shaped parts, and the parts to be supplied can be placed on two conveyor belts and conveyed by the conveyor belts and can trigger the guide and be supported by a supporting member of a suitable shape. The desired position in the present application can be the position where the parts are expected to be delivered by the feeding device, and this position can facilitate the operator or other equipment in the next assembly step to obtain the supplied parts.

[0024] Figure 1 is a schematic diagram of the structure of a feeding device provided in an embodiment of the present application, in which the feeding device is provided with parts to be supplied. Figure 1 As shown, the feeding device includes: a base frame 10 , a first shaft 20 , a second shaft 30 , two conveyor belts 40 , a supporting member 50 , a guiding member 60 and a resetting member 70 .

[0025] The base frame 10 can be used as a base for installing other structures on the feeding device. The present application does not limit the specific structure of the base frame 10, which is only used as an example. Figure 1As shown, the base frame 10 may include four supporting legs and two beams, the two beams are arranged in parallel, the four supporting legs are respectively arranged at both ends of the two beams and are vertically connected to the beams, the two beams and / or the supporting legs connected to different beams can be kept relatively fixed by connecting beams, and an oblique reinforcing beam can also be arranged between the beams and the supporting legs connected thereto. The material of the base frame 10 can be aluminum alloy. For example, the base frame 10 can be built of lean pipes.

[0026] The first shaft 20 is arranged on the base frame 10, and two rotatable first wheels 21 are arranged on the first shaft 20 at intervals. The rotation of the first wheel 21 can be realized by the rotation of the first shaft 20, and the first wheel 21 can be fixedly connected to the first shaft 20; the first wheel 21 can also be rotatably connected to the first shaft 20 to realize the rotation, which is not limited in the present application, but it is more preferred to realize the rotation of the first wheel 21 by the rotation of the first shaft 20, and the two first wheels 21 are more likely to keep synchronous rotation. In some embodiments, the first shaft 20 is rotatable relative to the base frame 10, for example, it can be fixed on the base frame 10 through a bearing seat, and the bearing in the bearing seat can be a sliding bearing or a rolling bearing. When the bearing is a rolling bearing, the first shaft 20 can be fastened to the inner ring of the bearing through an inner thread (set screw). The material of the first shaft 20 is 45# steel, and the outer diameter of the first shaft 20 can be determined according to the mounting hole diameter of the first wheel 21 and the inner diameter of the bearing, and the length of the first shaft 20 can be determined according to the size of the part 100. The first shaft 20 can be driven by manpower or by a driving device such as a motor. The first wheel 21 can be fixedly connected to the first shaft 20, for example, by a key pin connection, and the first wheel 21 can rotate together with the first shaft 20. The structure of the first wheel 21 can be determined based on the type of the conveyor belt 40, and it can drive the conveyor belt 40 or be driven by the conveyor belt 40. For example, the first wheel 21 can be a gear or a friction wheel. When the first wheel 21 is a gear, the conveyor belt 40 can be a chain structure. The module and number of teeth of the first wheel 21 can be determined by the safe distance between the parts 100 when supplying parts. By setting a reasonable module and number of teeth, the first wheel 21 can rotate one circle, and the conveyor belt 40 can move the distance between two adjacent parts 100.

[0027] The second shaft 30 is arranged on the base frame 10, and two rotatable second wheels 31 are arranged on the second shaft 30 at intervals, and the second shaft 30 is closer to the desired position relative to the first shaft 20. The rotation of the second wheel 31 can be achieved by the rotation of the second shaft 30, and the second wheel 31 can be fixedly connected to the second shaft 30; the second wheel 31 can also be rotatably connected to the second shaft 30 to achieve rotation, which is not limited in the present application, but it is more preferred to achieve the rotation of the second wheel 31 by the rotation of the second shaft 30, and the two second wheels 31 are more likely to keep synchronous rotation. In some embodiments, the second shaft 30 is rotatable relative to the base frame 10, for example, it can be fixed on the base frame 10 through a bearing seat, and the bearing in the bearing seat can be a sliding bearing or a rolling bearing. When the bearing is a rolling bearing, the second shaft 30 can be fastened to the inner ring of the bearing through an inner thread. The material of the second shaft 30 is 45# steel, and the outer diameter of the second shaft 30 can be determined according to the mounting hole diameter of the second wheel 31 and the inner diameter of the bearing, and the outer diameter of the second shaft 30 can be determined according to the size of the part 100. The second shaft 30 can be driven by manpower, or by a driving device such as a motor, or can be driven by other shafts through a conveyor belt or other transmission structure. The second wheel 31 can be fixedly connected to the second shaft 30, for example, by a key pin connection, and the second wheel 31 can rotate together with the second shaft 30. The structure of the second wheel 31 can be determined based on the type of the conveyor belt 40, and it can drive the conveyor belt 40 or be driven by the conveyor belt 40. For example, the second wheel 31 can be a gear or a friction wheel. When the second wheel 31 is a gear, the conveyor belt 40 can be a chain structure, and the modulus of the second wheel 31 can be the same as the modulus of the chain structure of the conveyor belt 40. In some embodiments, the second wheel 31 can have the same modulus as the first wheel 21, and the number of teeth of the second wheel 31 is less than the number of teeth of the first wheel 21. At this time, when the first shaft 20 and the second shaft 30 are installed at the same height, the conveyor belt 40 can form a downhill trend, making the driving of the conveyor belt 40 more labor-saving.

[0028] The first wheel 21 on the first axis 20 and the second wheel 31 on the second axis 30 are respectively used to support the two ends of the conveyor belt 40. In the present application, the end of the conveyor belt 40 supported by the second wheel 31 is defined as the end close to the desired position. The conveyor belt 40 transports the part 100 in the direction from the first axis 20 to the second axis 30.

[0029] Each conveyor belt 40 is sleeved on the first wheel 21 and the second wheel 31 on the same side. For example, one conveyor belt 40 can be sleeved on the first wheel 21 on the left side of the first shaft 20 and the second wheel 31 on the left side of the second shaft 30, and another conveyor belt 40 can be sleeved on the first wheel 21 on the right side of the first shaft 20 and the second wheel 31 on the right side of the second shaft 30. The two conveyor belts 40 can be arranged roughly in parallel. The conveyor belt 40 can be driven by the first wheel 21 and / or the second wheel 31, that is, the conveyor belt 40 can be driven only by the first wheel 21, in which case the first wheel 21 is the driving wheel; the conveyor belt 40 can also be driven only by the second wheel 31, in which case the second wheel 31 is the driving wheel; the conveyor belt 40 can also be driven by the first wheel 21 and the second wheel 31 at the same time, in which case the first wheel 21 and the second wheel 31 are both driving wheels. When the feeding device supplies the parts 100 to the desired position, the parts 100 are supported by the two conveyor belts 40 at the same time. In this embodiment, the conveyor belt 40 can be a chain structure, the modulus of the chain structure can be determined according to the modulus of the first wheel 21, and the conveyor belt 40 can also be a flexible belt structure, such as a belt, etc., which is not limited in this application. The length of the conveyor belt 40 can be determined according to the size of the queue of parts 100 to be supplied.

[0030] In some embodiments, a plurality of U-shaped pads 41 are arranged at intervals on the conveyor belt 40, and the U-shaped pads 41 on the two conveyor belts 40 are arranged correspondingly, and the two corresponding U-shaped pads 41 jointly fix the same part 100. Specifically, the part 100 can be fixed in the concave space of the U-shaped pad 41, and the positions of the two corresponding U-shaped pads 41 can be set according to the position of the supporting point of the same part 100 on each conveyor belt 40 when the same part 100 is supported by two conveyor belts 40 at the same time; the U-shaped pad 41 can be made of flexible material to prevent the part 100 from being damaged by the U-shaped pad 41. In some embodiments, according to the structure of the part 100, the U-shaped pads 41 on different conveyor belts 40 can be set to different structures to better support the part 100. Taking the high and low pressure pipe assembly of an air conditioner as an example, a limiting protrusion can be provided on the concave surface of the U-shaped pad 41 on a conveyor belt 40, and the limiting protrusion can enter the gap between the high pressure pipe and the low pressure pipe to limit the high and low pressure pipe assembly of the air conditioner more accurately. At the same time, the U-shaped pad on the other conveyor belt 40 may not be provided with a limiting protrusion to prevent excessive limiting and affect the placement efficiency of the high and low pressure pipe assembly of the air conditioner on the conveyor belt 40. The U-shaped pad 41 can be connected to the conveyor belt 40 by sinking bolts. In the embodiment where the part 100 is the high and low pressure pipe assembly of the air conditioner, the opening size of the U-shaped pad 41 can be determined according to the pipe diameters on both sides of the high and low pressure pipe assembly of the air conditioner to ensure that the high and low pressure pipe assembly of the air conditioner does not move unexpectedly on the U-shaped pad 41 with the movement of the conveyor belt 40.

[0031] The support member 50 is connected to the base frame 10, and the support member 50 is configured to support the part 100 in the desired position. The structure and the position of the support member 50 can be determined based on the shape and the desired position of the part 100. Exemplarily, the support member 50 can be configured to be L-shaped, the horizontal part of the L-shaped support member 50 is used to support the part 100 and to be connected to the base frame 10, and the vertical part of the L-shaped support member 50 can be used to stop the part 100 to prevent the part 100 from moving out of the desired position. In some embodiments, the support member 50 can be made of a flexible material to reduce the damage caused when the part 100 falls on the support member 50, and the support member 50 can also be made of a wear-resistant material to reduce the wear of the part 100 on the support member 50 and increase the service life of the support member 50. In some embodiments, two support members 50 are arranged at intervals on the base frame 10, and the interval reserved between the two support members 50 can facilitate the removal of the part 100 located on the support member 50.

[0032] The guide member 60 is rotatably disposed on the second shaft 30 relative to the second shaft 30 and is located between the two second wheels 31. The guide member 60 can rotate between the trigger position and the guiding position. The guide member 60 located between the two second wheels 31 can contact the middle position of the part 100 supported by the two conveyor belts 40 at the same time, so as to be driven and rotated by the part 100. At least part of the surface of the guide member 60 used to contact the part 100 can form a plane, and the width of the plane can be determined according to the part 100, which can achieve stable sliding of the part 100 on the guide member 60, so as to guide the part 100. Of course, when the shape of the part 100 is irregular, the guide member 60 can also be other shapes that are adapted to the part 100. The material of the guide member 60 can be a flexible material with suitable hardness, such as nylon, etc., to reduce the possibility of damage to the part 100 when it contacts the guide member 60. In some embodiments, the guide member 60 can be set on the second shaft 30 through a sleeve, the outer ring of the sleeve can be interference fit with the guide member 60, the inner ring of the sleeve can be fastened to the second shaft 30 through an internal thread, and balls can be arranged between the inner ring and outer ring of the sleeve to achieve rolling friction between the inner ring and outer ring of the sleeve.

[0033] Among them, when the guide member 60 is in the trigger position, the guide member 60 is at least partially on the movement trajectory of the part 100, so that the guide member 60 can contact the part 100 and move to the guiding position under the drive of the part 100; when the guide member 60 is in the guiding position, the guide member 60 can guide the part 100 from the conveyor belt 40 to the supporting member 50.

[0034] The reset member 70 is connected to the guide member 60. When the guide member 60 deviates from the trigger position, the reset member 70 can provide the guide member 60 with a force to move to the trigger position. It can be understood that in order to continuously guide the parts 100 in the supply sequence, it is necessary to enable the guide member 60 to be reset in time after guiding one part 100 so as to guide the next part 100. At this time, the reset member 70 can provide a restoring force to reset the guide member 60. In addition, in the embodiment where the second wheel 31 is fixedly connected to the second shaft 30, the second shaft 30 and the second wheel 31 will rotate at the same time, and the second shaft 30 will provide a certain torque to the guide member 60, so that the guide member 60 has a certain slight deflection. At this time, the reset member 70 can prevent the guide member 60 from excessively deflecting, resulting in the part 100 not being able to contact the guide member 60 in time. Exemplarily, the reset member 70 can be an elastic member, such as a spring, a spring sheet, etc., which can compress or stretch the elastic member when the guide member 60 deviates from the guide position, so that the elastic member generates a restoring force. In some embodiments, the reset member 70 is a counterweight, such as a metal block, etc. The counterweight is disposed at the bottom of the guide member 60, so that the center of gravity of the overall structure formed by the counterweight and the guide member 60 is lowered, and the guide member 60 can be kept in the trigger position. The bottom of the guide member 60 may be provided with two screw holes, and the counterweight is mounted on the guide member 60 by bolts. The number of the counterweight is one or more, so as to facilitate the adjustment of the restoring force.

[0035] The feeding device provided in the embodiment of the present application drives the parts 100 to move through the conveyor belt 40, and by reasonably setting the length of the conveyor belt 40, it can meet the needs of long-distance sorting and feeding. At the same time, by setting the guide member 60 and the reset member 70, when the part 100 passes through the guide member 60, the part 100 can be automatically guided from the conveyor belt 40 to the supporting member 50 through the interaction between the part 100 and the guide member 60, and the reset member 70 can automatically reset the guide member 60, thereby simplifying the feeding process, saving working hours, and reducing the quality defects of the parts 100 caused when sorting the feeding.

[0036] In an embodiment in which the conveyor belt 40 is driven by a driving device, a proximity switch may be provided at the supporting member 50. When the operator takes away the part 100 at the supporting member 50, the proximity switch is closed, and the motor drives the conveyor belt 40 to move; after the next part 100 is transferred to the supporting member 50, the proximity switch is disconnected, and the motor stops outputting torque.

[0037] like Figure 2As shown, in some embodiments, the guide member 60 includes a guide portion 61 and a limit portion 62, and the guide portion 61 and the limit portion 62 are respectively located on opposite sides of the axis of the second shaft 30, so that the guide member 60 can maintain balance on the second shaft 30 as much as possible. The dimension of the guide portion 61 in the direction perpendicular to the axis of the second shaft 30 is greater than or equal to the distance from the second shaft 30 to the desired position, so that when the guide member 60 guides the part 100 to the desired position and the part 100 is not removed, the part 100 can press the guide portion 61, so that the limit portion 62 arranged on the opposite side of the axis of the second shaft 30 can be tilted, so as to be on the movement trajectory of the part 100; wherein, when the guide member 60 is in the trigger position, the guide portion 61 is on the movement trajectory of the part 100, and at this time the guide portion 61 is facing the surface of the part 100 The surface forms an acute angle with the movement direction of the part 100 on the conveyor belt 40, so that the guide portion 61 can be driven by the part 100 and pressed down by the part 100 leaving the conveyor belt 40, and the part 100 is guided to the desired position by the guide portion 61; when the guide member 60 is in the guiding position, the limiting portion 62 is on the movement trajectory of the part 100. At this time, the surface of the limiting portion 62 facing the part 100 is at a right angle to the movement direction of the part 100 on the conveyor belt 40, so as to prevent the limiting portion 62 from being driven by the part 100, thereby achieving the limitation of the part 100. In some embodiments, when the guide member 60 is in the trigger position, the limit portion 62 can be lower than the plane used for conveying by the conveyor belt 40, so that the part 100 can pass through the limit portion 62 smoothly. After the part 100 passes through the limit portion 62, it continues to move and contacts the limit portion 62. At this time, the force of the part 100 is applied to the guide portion 61, breaking the balance of the guide member 60. The part 100 moves downward together with the guide portion 61, and the limit portion 62 is tilted at the same time to limit the next part 100 to prevent the operator from operating incorrectly. After the part 100 reaches the desired position, the operator can take the part 100 away. Under the action of the reset member 70, the guide member 60 returns to the trigger position, and the next part 100 can continue to pass. Such reciprocating limiting and guiding can buffer the fall of the part 100 and avoid quality problems of the part 100.

[0038] like Figure 3 As shown, in some embodiments, the feeding device further includes a tensioning spring 81, a mounting slide 82, a first tensioning shaft 83 and two guide blocks 84, one end of the tensioning spring 81 is connected to the base frame 10; the mounting slide 82 is slidably disposed on the base frame 10, the mounting slide 82 is connected to the other end of the tensioning spring 81, and the tensioning spring 81 provides tension for the mounting slide 82. Figure 3In the illustrated embodiment, the mounting slider 82 can be slidably connected to the oblique reinforcing beam, and a groove can be provided on the oblique reinforcing beam. The two ends of the mounting slider 82 are respectively installed in the groove to achieve sliding along the oblique reinforcing beam; the tension spring 81 can be connected to the transverse connecting beam of the base frame 10 through a hook. The middle part of the first tensioning shaft 83 is connected to the mounting slider 82 through a bearing seat. Specifically, the bearing seat can be connected to the mounting slider 82 through a bolt, and the first tensioning shaft 83 is installed on the bearing seat. The bearing seat can be connected to the first tensioning shaft 83 through an inner thread. Two first tensioning wheels are respectively arranged at both ends of the first tensioning shaft 83. The two first tensioning wheels are respectively located in the space surrounded by each conveyor belt 40, and abut against the conveyor belt 40 to provide tension to the conveyor belt 40. The first tensioning wheel and the first tensioning shaft 83 can be connected by a key pin. In the embodiment in which the conveyor belt 40 is a chain structure, the first tensioning wheel can be a gear meshing with the chain structure. The guide block 84 is arranged on the base frame 10. The guide block 84 is provided with a waist-shaped hole. The two ends of the first tensioning shaft 83 are respectively inserted into the waist-shaped holes of the two guide blocks 84. The guide block 84 can limit the freedom of the two ends of the first tensioning shaft 83, so that the first tensioning shaft 83 can only move along the waist-shaped hole of the guide block 84. The first tensioning shaft 83 can move in the waist-shaped hole along the extension direction of the waist-shaped hole driven by the installation slider 82. When the installation slider 82 is connected to the oblique reinforcing beam, the opening direction of the waist-shaped hole can also be obliquely consistent with the reinforcing beam, so that the first tensioning shaft 83 can slide smoothly. In this embodiment, the tensioning spring 81 allows the first tensioning wheel to have a floating position, so that the conveyor belt 40 can achieve tension balance, adapt to the change of the total weight of the parts 100 on the conveyor belt 40, and maintain tension.

[0039] In some embodiments, the feeding device further includes a third shaft 90, which is disposed on the base frame 10 and is located on a side of the base frame 10 where the second shaft 30 is disposed, and the third shaft 90 is in transmission connection with the second shaft 30; a hand-cranked wheel is disposed on the first shaft 20 and / or the third shaft 90, and the hand-cranked wheel can be connected to the first shaft 20 and / or the third shaft 90 by a key pin. In this embodiment, by providing the third shaft 90, the operation of the feeding device is made more flexible, for example, the first shaft 20 can drive the second shaft 30 to rotate; the third shaft 90 can also drive the second shaft 30 to rotate, thereby realizing the movement of the conveyor belt 40. The first shaft 20 may be provided with a first hand-cranked wheel 22, through which the feeding device can be manually controlled, so that the operation of the feeding device is more reliable; the third shaft 90 may be provided with a second hand-cranked wheel 91, so that when the operator of the first hand-cranked wheel 22 is unable to operate the first hand-cranked wheel 22, the operator who takes the part 100 at the desired position can operate the second hand-cranked wheel 91, so that the feeding device can continue to feed. The diameter of the hand-cranked wheel can be less than 2 times the distance of the U-shaped pad 41 to prevent the hand-cranked wheel from interfering with the part 100 placed on the U-shaped pad 41. According to the formula M=FL, when the torsional force M is constant, the greater the force L, the smaller the force F will be. Therefore, the diameter of the hand-cranked wheel can be close to 2 times the distance of the U-shaped pad 41 to reduce the force used to operate the hand-cranked wheel. In some embodiments, the inner diameter of the hand-cranked wheel and the keyway width and depth can be calculated and designed according to the GB / T13800-1992 standard.

[0040] In some embodiments, the first shaft 20, the second shaft 30 and the third shaft 90 are arranged on the base frame 10 through bearing seats, and at least one set of bearing seats of the first shaft 20, the second shaft 30 and the third shaft 90 is adjustably arranged on the base frame 10. In this embodiment, this arrangement can adjust the spacing between the first shaft 20 and the second shaft 30 and the third shaft 90 and the second shaft 30 to further adjust the tension of the chain structure. A slide groove can be opened on the base frame 10, and the bearing seat is slidably connected in the slide groove.

[0041] In some embodiments, the third shaft 90 is connected to the second shaft 30 through a chain structure transmission, and gears that are connected through a chain transmission can be fixedly arranged on the third shaft 90 and the second shaft 30, respectively, and the gears are connected to the second shaft 30 and the third shaft 90 through keys. The feeding device also includes a second tensioning shaft 93, which is adjustably arranged on the base frame 10. For example, the second tensioning shaft 93 can be arranged in a slide groove of the base frame 10 and fastened by bolts. When the bolts are loosened, the position of the second tensioning shaft 93 can be adjusted. A second tensioning wheel 92 is arranged on the second tensioning shaft 93, and the second tensioning wheel 92 is meshed with the chain structure between the third shaft 90 and the second shaft 30. In this embodiment, by adjusting the position of the second tensioning shaft 93, the position of the second tensioning wheel 92 is changed, so that the second tensioning wheel 92 can tension the chain structure for transmission between the second shaft 30 and the third shaft 90.

[0042] In some embodiments, the conveyor belt 40 is configured as a chain structure, and the first wheel 21 and the second wheel 31 are configured as gears meshing with the chain structure of the conveyor belt 40. The chain structure has stable transmission and can prevent the U-shaped pad 41 from deforming at the turning point of the conveyor belt 40 relative to the belt. The feeding device also includes two chain support plates 42, which are arranged on the base frame 10 and are respectively located inside the space surrounded by the two conveyor belts 40. The chain support plates 42 are used to lift the load-bearing part of the conveyor belt 40. It can be understood that when a large number of parts 100 are placed on the conveyor belt 40, the weight of the parts 100 may cause the conveyor belt 40 to deform, affecting the normal transportation of the parts 100. Therefore, in this embodiment, the conveyor belt 40 is lifted by arranging the chain support plates 42 so that the parts 100 can be transported on the conveyor belt 40 more smoothly.

[0043] In some embodiments, the chain support plate 42 is connected to the base frame 10 through an L-shaped bracket 43, and a waist-shaped hole is provided on the L-shaped bracket 43. The chain support plate 42 is installed on the L-shaped bracket 43 by bolts passing through the waist-shaped hole, and the L-shaped bracket 43 is connected to the base frame 10 in an adjustable position. The L-shaped bracket 43 can be set in the slide groove of the base frame 10 and fastened by bolts. When the position of the L-shaped bracket 43 needs to be adjusted, the bolts can be loosened and the fixed position in the slide groove can be changed, so as to adjust the horizontal position of the chain support plate 42; by adjusting the position of the bolts of the waist-shaped hole of the L-shaped bracket 43 in the waist-shaped hole, the height of the chain support plate 42 can be adjusted. In this embodiment, the tightness of the conveyor belt 40 and the lifting position of the chain support plate 42 can be adjusted by the above structure. For example, after the chain support plate 42 is worn, the chain support plate 42 is raised so that the chain support plate 42 can continue to lift the chain structure, thereby achieving the function of supporting and tensioning the chain.

[0044] The working principle of the parts supply device is described below by taking the part 100 as an example of the high and low pressure pipe assembly of the air conditioner. After placing the air-conditioning high and low-pressure pipe assemblies assembled by the sub-packaging table into a corresponding pair of U-shaped pads 41, the first hand-cranked wheel 22 is rotated clockwise to the right for one circle. By designing the pitch and number of teeth of the first wheel 21, the air-conditioning high and low-pressure pipe assemblies can be moved to the desired position by the distance of a standard workpiece. After the U-shaped pad 41 is full of air-conditioning pressure pipes, the air-conditioning high and low-pressure pipe assemblies are driven by the conveyor belt 40, which can trigger the guide member 60 to form a limit protection. At the same time, the air-conditioning high and low-pressure pipe assemblies are buffered to the supporting member 50. After the large-line operator takes away the air-conditioning high and low-pressure pipe assemblies, the guide member 60 is acted upon by the bottom reset member 70 to restore the guide member 60 to the trigger position, waiting for the next buffering and limit function. If the sub-packaging operator cannot rotate the first hand-cranked wheel 22 to supply parts, the large-line operator can also rotate the second hand-cranked wheel 91 to move the air-conditioning high and low-pressure pipe assemblies on the U-shaped pad 41 to the right by the distance of a standard workpiece, thereby ensuring the continuous operation of the device.

[0045] Based on the above-mentioned embodiments of the present application, in the absence of explicit negation or conflict, the technical features of one embodiment may be beneficially combined with one or more other embodiments.

[0046] Although some specific embodiments of the present application have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are only for illustration and not for limiting the scope of the present application. It should be understood by those skilled in the art that the above embodiments may be modified or some technical features may be replaced by equivalents without departing from the scope and spirit of the present application. The scope of the present application is defined by the appended claims.

Claims

1. A feeding device for supplying parts to a desired position, characterized in that: include: Scaffolding; A first shaft, the first shaft is arranged on the base frame, and two rotatable first wheels are arranged on the first shaft at intervals; a second shaft, the second shaft being arranged on the base frame, two rotatable second wheels being arranged on the second shaft at intervals, and the second shaft being closer to the desired position than the first shaft; Two conveyor belts, each of which is sleeved on a first wheel and a second wheel located on the same side and can be driven by the first wheel and / or the second wheel, and when the feeding device supplies the parts to the desired position, the parts are supported by the two conveyor belts at the same time; A supporting member connected to the base frame, the supporting member being configured to support the part at the desired position; A guide member, the guide member is rotatably disposed on the second shaft relative to the second shaft and is located between the two second wheels, and the guide member can rotate between a trigger position and a guiding position; wherein, when the guide member is at the trigger position, the guide member is at least partially located on the movement trajectory of the part, so that the guide member can contact the part and move toward the guiding position under the drive of the part; when the guide member is at the guiding position, the guide member can guide the part from the conveyor belt to the supporting member; A reset member is connected to the guide member, and when the guide member deviates from the trigger position, the reset member can provide a force for the guide member to move toward the trigger position.

2. The feeding device according to claim 1, characterized in that: The guide member comprises a guide portion and a limit portion, wherein the guide portion and the limit portion are respectively located on opposite sides of the axis of the second shaft, and a dimension of the guide portion in a direction perpendicular to the axis of the second shaft is greater than or equal to a distance from the second shaft to the desired position; Wherein, when the guide member is in the trigger position, the guide portion is on the movement trajectory of the part, and at this time, the surface of the guide portion facing the part forms an acute angle with the movement direction of the part on the conveyor belt; when the guide member is in the guiding position, the limiting portion is on the movement trajectory of the part, and at this time, the surface of the limiting portion facing the part forms a right angle with the movement direction of the part on the conveyor belt.

3. The feeding device according to claim 1, characterized in that: The reset member is a counterweight block, and the counterweight block is arranged at the bottom of the guide member. The number of the counterweight blocks is one or more.

4. The feeding device according to claim 1, characterized in that: Also includes: A tension spring, one end of which is connected to the base frame; A mounting slider, wherein the mounting slider is slidably disposed on the base frame, the mounting slider is connected to the other end of the tension spring, and the tension spring provides a pulling force for the mounting slider; A first tensioning shaft, wherein the middle portion of the first tensioning shaft is connected to the mounting slide block via a bearing seat, and two first tensioning wheels are respectively disposed at both ends of the first tensioning shaft, and the two first tensioning wheels are respectively located inside the space enclosed by each of the conveyor belts and abut against the conveyor belts to provide tensioning force to the conveyor belts; Two guide blocks are arranged on the base frame, and the guide blocks are provided with waist-shaped holes. The two ends of the first tensioning shaft are respectively passed through the waist-shaped holes of the two guide blocks. The first tensioning shaft can move in the waist-shaped holes along the extension direction of the waist-shaped holes under the drive of the mounting slider.

5. The feeding device according to claim 1, characterized in that: Also includes: A third shaft, the third shaft is arranged on the base frame, and the third shaft is located at a side of the base frame where the second shaft is arranged, and the third shaft is drivingly connected with the second shaft; The first shaft and / or the third shaft are provided with a hand-cranked wheel.

6. The feeding device according to claim 5, characterized in that: The first shaft, the second shaft and the third shaft are arranged on the base frame through bearing seats, and among the bearing seats of the first shaft, the second shaft and the third shaft, at least one group of bearing seats is adjustably arranged on the base frame.

7. The feeding device according to claim 5, characterized in that: The third shaft is connected to the second shaft via a chain structure transmission; The feeding device further comprises a second tensioning shaft, which is adjustably arranged on the base frame, and a second tensioning wheel is arranged on the second tensioning shaft, which is meshed with a chain structure between the third shaft and the second shaft.

8. The feeding device according to any one of claims 1 to 7, characterized in that: The conveyor belt is configured as a chain structure, and the first wheel and the second wheel are configured as gears meshing with the chain structure of the conveyor belt; The feeding device also includes two chain support plates, which are arranged on the base frame and are respectively located inside the space surrounded by the two conveyor belts. The chain support plates are used to lift the load-bearing part of the conveyor belt.

9. The feeding device according to claim 8, characterized in that: The chain support plate is connected to the base frame via an L-shaped bracket, a waist-shaped hole is provided on the L-shaped bracket, the chain support plate is installed on the L-shaped bracket via bolts passing through the waist-shaped hole, and the L-shaped bracket is connected to the base frame in an adjustably positionable manner.

10. The feeding device according to claim 8, characterized in that: A plurality of U-shaped pads are arranged at intervals on the conveyor belt, and the U-shaped pads on the two conveyor belts are arranged correspondingly, and the corresponding two U-shaped pads jointly fix the same part; The U-shaped pad and / or the supporting member are made of flexible material.

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