Automatic feeding equipment for shaft parts and use method thereof

Abstract

The present invention relates to an automatic loading device and a use method specially used for shaft parts, the device comprises a material unloading ramp, a material box, a movable top plate and a first driving component; a first material unloading inclined surface is arranged on the upper end of the movable top plate; the automatic loading device also comprises a material receiving platform; the material receiving platform is used to receive a hardware shaft that slides out of the material unloading ramp; the automatic loading device also comprises a first limiting component, a second driving component that drives the first limiting component to move longitudinally, a separating component, and a third driving component that drives the separating component to move longitudinally; the separating component is used to separate the hardware shaft arranged at the lowest position on the material unloading ramp from the hardware shaft arranged at the second lowest position; the device realizes the unloading of the hardware shafts one by one through the alternating operation of the second driving component and the third driving component; at the same time, the hardware shafts can be cached through the material unloading ramp, the anti-stuck material effect is good, and the loading effect is more stable.

Description

Technical Field

[0001] The present invention relates to the technical field of feeding equipment, and more specifically, to an automatic feeding equipment specially used for shaft parts and a use method thereof. Background Art

[0002] In order to improve the safety of injection molding production, traditional manual loading has been replaced by robotic loading. Figure 2 The figure shows a common hardware shaft. When the hardware shaft is encapsulated with rubber, the robot grabs a hardware shaft each time and puts it into the cavity of the injection molding machine. In the past, the robot was mostly fed manually, which had a slow loading speed and high labor costs. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide an automatic feeding device specially used for shaft parts and a method for using the automatic feeding device in view of the above-mentioned defects of the prior art.

[0004] The technical solution adopted by the present invention to solve its technical problem is:

[0005] On the one hand, an automatic loading device dedicated to shaft parts is provided, which includes a material unloading ramp, a material box located at the higher end of the material unloading ramp, a movable top plate carrying a hardware shaft in the material box, and a first driving component that drives the movable top plate to approach or move away from the top of the material unloading ramp along a vertical plane; the upper end of the movable top plate is provided with a first material unloading inclined surface directly facing the material unloading ramp; the automatic loading device also includes a material receiving platform located at the lower end of the material unloading ramp; the material receiving platform is used to receive the hardware shaft that slides out of the material unloading ramp;

[0006] The automated loading equipment also includes a first limiting component for preventing the lowest hardware shaft on the unloading ramp from sliding down, a second driving component for driving the first limiting component to move longitudinally, a separating component, and a third driving component for driving the separating component to move longitudinally; the separating component is used to separate the lowest hardware shaft on the unloading ramp from the second lowest hardware shaft.

[0007] On the other hand, a method for using an automatic feeding device is provided, based on the above-mentioned automatic feeding device dedicated to shaft parts, which includes the following steps:

[0008] The first driving assembly drives the movable top plate in the material box upward, and the hardware shaft moves upward along with the movable top plate;

[0009] After reaching the top of the unloading ramp, the hardware shaft slides down along the first unloading slope and reaches the unloading ramp;

[0010] The first air pump deflates, the first rubber airbag contracts, and drives the first limit ejector pin to reset upward, and the hardware shaft at the lowest position on the unloading ramp slides down into the receiving groove of the material receiving platform;

[0011] The fourth driving assembly drives the material receiving platform to move to the upper material position;

[0012] After the material receiving platform reaches the loading position, the fifth driving assembly drives the positioning pin to move into the positioning slot, and the hardware shaft slightly moves upward under the push of the positioning pin to allow the manipulator to pick up the material;

[0013] The first air pump is inflated, the first rubber airbag expands and drives the first limit ejector downward, the second air pump is deflated, the second rubber airbag contracts and drives the second limit ejector to reset upward, and the hardware shaft on the material discharge ramp rolls downward until the first limit ejector fits with the hardware shaft at the lowest position on the material discharge ramp;

[0014] After lamination, the second air pump is inflated, and the second rubber airbag expands to drive the second limit ejector downward, separating the hardware shaft at the lowest position and the hardware shaft at the second lowest position on the unloading ramp.

[0015] The beneficial effects of the present invention are as follows: before production, the hardware shaft is first loaded into the material box; in the initial state, the movable top plate is located at the bottom of the groove of the material box, and the hardware shaft is stacked on the movable top plate; then, the first driving component drives the movable top plate upward, and the hardware shaft ascends with the movable top plate; after reaching the top of the unloading ramp, the hardware shaft slides down along the first unloading slope and reaches the unloading ramp for buffering; then, the second driving component drives the first limiting component upward, releases the hardware shaft in the lowest position on the unloading ramp, so that it can slide down to the material receiving platform for the robot to grab and move it into the injection molding machine; then, the second driving component drives the first limiting component downward and re-enters the limiting state, and the third driving component drives the partitioning component upward to release the hardware shaft, so that the hardware shaft on the unloading ramp can roll downward until the first limiting component is in contact with the hardware shaft in the lowest position on the unloading ramp. Therefore, through the alternating operation of the second drive assembly and the third drive assembly, the hardware shafts can be discharged one by one; at the same time, the hardware shafts can be cached through the unloading ramp, which has a good anti-jamming effect and a more stable loading effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the present invention will be further described below in conjunction with the accompanying drawings and embodiments. The drawings described below are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative work:

[0017] Figure 1This is a cutaway view of an automatic feeding device for shaft parts provided by the present invention (the first guide sleeve is also in a cutaway state);

[0018] Figure 2 It is a schematic diagram of the existing hardware shaft structure;

[0019] Figure 3 yes Figure 1 A1 in the middle is an enlarged view;

[0020] Figure 4 yes Figure 1 A2 in the middle is an enlarged view;

[0021] Figure 5 yes Figure 1 A3 in the middle is an enlarged view;

[0022] Figure 6 It is a structural schematic diagram of an automatic feeding device dedicated to shaft parts provided by the present invention;

[0023] Figure 7 yes Figure 6 A magnified view of B1 in the middle; and

[0024] Figure 8 The present invention provides a flowchart for implementing a method for using an automatic feeding device. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the following will be described clearly and completely in combination with the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are partial embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work belong to the protection scope of the present invention.

[0026] Embodiment 1

[0027] This embodiment provides an automatic feeding device dedicated to shaft parts, such as Figure 1 , Figure 2 as well as Figure 6 As shown, it includes a material unloading ramp 10, a material box 11 located at the higher end of the material unloading ramp 10, a movable top plate 12 carrying a hardware shaft 2 in the material box 11, and a first driving component 13 that drives the movable top plate 12 to approach or move away from the top of the material unloading ramp 10 along the vertical plane; the upper end of the movable top plate 12 is provided with a first material unloading inclined surface 180 that is directly opposite to the material unloading ramp 10; the automatic loading equipment also includes a material receiving platform 14 located at the lower end of the material unloading ramp 10; the material receiving platform 14 is used to receive the hardware shaft 2 that slides out of the material unloading ramp 10;

[0028] The automatic loading equipment also includes a first limit component for preventing the hardware shaft 2 at the lowest position on the unloading ramp 10 from sliding down, a second drive component 15 for driving the first limit component to move longitudinally, a separation component, and a third drive component 16 for driving the separation component to move longitudinally; the separation component is used to separate the hardware shaft 2 at the lowest position and the hardware shaft 2 at the second lowest position on the unloading ramp 10. The use principle of this equipment is as follows:

[0029] Before production, the metal shaft 2 is first loaded into the material box 11; in the initial state, the movable top plate 12 is located at the bottom of the groove of the material box 11, and the metal shaft 2 is stacked on the movable top plate 12; then, the first driving component 13 drives the movable top plate 12 upward, and the metal shaft 2 moves upward with the movable top plate 12; after reaching the top of the unloading ramp 10, the metal shaft 2 slides down along the first unloading slope 180 and reaches the unloading ramp 10 for caching; then, the second driving component 15 drives the first limit component upward to release the unloading ramp The hardware shaft 2 at the lowest position on the material loading platform 10 can slide down onto the material loading platform 14 so that the manipulator (not shown in the figure) can grab it and move it into the injection molding machine (not shown in the figure); then, the second driving component 15 drives the first limiting component downward and re-enters the limiting state, and the third driving component 16 drives the separation component upward to release the hardware shaft 2, so that the hardware shaft 2 on the material loading platform 10 can roll downward until the first limiting component fits with the hardware shaft 2 at the lowest position on the material loading platform 10. Therefore, the alternate operation of the second driving component 15 and the third driving component 16 realizes the discharging of the hardware shafts 2 one by one; at the same time, the hardware shafts 2 can be cached by the material loading platform 10, which has a good anti-stuck material effect and a more stable feeding effect.

[0030] Embodiment 2

[0031] This embodiment provides an automatic feeding device dedicated to shaft parts. The same points as those in the first embodiment are not repeated here. The difference is that:

[0032] like Figure 1 and Figure 6 As shown, the automatic feeding equipment further includes a frame 17; the unloading ramp 10, the material box 11, the first drive assembly 13, the second drive assembly 15 and the third drive assembly 16 are all arranged on the frame 17;

[0033] The frame 17 is also provided with a loading position 181 for indicating the material picking position of the robot, and a fourth driving component 18 for driving the material receiving platform 14 to approach or move away from the loading position 181 along the horizontal plane. A certain distance is left between the loading position 181 and the unloading ramp 10, so that the robot has a larger space for movement, reducing the difficulty of programming the robot's moving path.

[0034] like Figure 1 and Figure 6As shown, the material unloading ramp 10 includes a plurality of sub-ramp platforms 19; the arrangement direction of the plurality of sub-ramp platforms 19 is the same as the length direction of the hardware shaft 2; each sub-ramp platform 19 is fixed to the frame 17;

[0035] The automated loading equipment also includes a height limiting plate 110 parallel to the slope of the unloading ramp 10; the height limiting plate 110 is fixed to the frame 17; the distance between the height limiting plate 110 and the slope of the unloading ramp 10 is adapted to the diameter of the hardware shaft 2, so that the hardware shaft 2 will not be stacked between the height limiting plate 110 and the unloading ramp 10, ensuring the one-by-one unloading of the hardware shaft 2; a guide piece 111 obliquely upward is fixed to the higher end of the height limiting plate 110; the guide piece 111 faces the higher end of the unloading ramp 10, which makes it easier for the hardware shaft 2 to slide between the height limiting plate 110 and the unloading ramp 10.

[0036] like Figure 1 and Figure 6 As shown, the frame 17 is also fixedly provided with a first material detection component 112 for detecting whether there is a hardware shaft 2 between two adjacent groups of sub-slope platforms 19, and a second material detection component 113 for detecting whether there is a hardware shaft 2 on the material receiving platform 14. The material unloading ramp 10 is divided into several groups of small sub-slope platforms 19, which can not only reduce the overall volume of the material unloading ramp 10 for easy transportation and storage, but also utilize the space between two adjacent groups of sub-slope platforms 19 to install the first material detection component 112; adding the first material detection component 112 and the second material detection component 113 makes it easier to detect the presence of materials at each position without the need for workers to monitor for a long time, thus saving manpower.

[0037] like Figures 5 to 7 As shown, the material receiving platform 14 is provided with a receiving groove 182 for accommodating the hardware shaft 2; positioning grooves 183 are provided on both sides of the material receiving platform 14; the arrangement direction of the two groups of positioning grooves 183 is perpendicular to the movement direction of the material receiving platform 14;

[0038] The automated loading equipment also includes a second limiting component 114 for limiting the loading platform 14 on the loading position 181; the second limiting component 114 includes a positioning pin 115 adapted to the positioning groove 183, and a fifth driving component 116 for driving the positioning pin 115 to approach or move away from the positioning groove 183 along the horizontal plane; the positioning pin 115 corresponds one-to-one to the positioning groove 183; the fifth driving component 116 corresponds one-to-one to the positioning pin 115; each fifth driving component 116 is fixed to the frame 17, and after the loading platform 14 reaches the loading position 181, the fifth driving component 116 drives the positioning pin 115 to move into the positioning groove 183, thereby limiting the loading platform 14; when the robot lifts the hardware shaft 2, the hardware shaft 2 will rub against the wall of the accommodating groove 182. By adding the positioning pin 115, the positioning pin 115 replaces the fourth driving component 18 to bear the upward pulling force, so that the fourth driving component 18 has a longer service life.

[0039] like Figure 2 , Figures 5 to 7 As shown, the receiving groove 182 is V-shaped and is connected to the positioning groove 183; chamfers 184 are provided at both ends of the hardware shaft 2; one end of the positioning pin 115 extending into the positioning groove 183 is provided with an active inclined surface 185 that fits with the chamfer 184 or the outer cylindrical surface on the hardware shaft 2 during positioning. After the positioning pin 115 is inserted into the positioning groove 183, the larger end of the positioning pin 115 fits with the positioning groove 183, thereby limiting the position of the material receiving platform 14; as the positioning pin 115 continues to penetrate deeper, the active inclined surface 185 contacts the hardware shaft 2, and the hardware shaft 2 floats upward slightly under the push of the positioning pin 115, so that the hardware shaft 2 will not be in a clamped state with the receiving groove 182, making it easier for the robot to take away the hardware shaft 2.

[0040] like Figures 4 to 6 As shown, the material receiving platform 14 includes a horizontal bottom plate 117, and two sets of main platform bodies 118 respectively fixed at both ends of the bottom plate 117; the two sets of main platform bodies 118 cooperate to support the hardware shaft 2; the opposite side surfaces of the two sets of main platform bodies 118 are both provided with a receiving groove 182;

[0041] The material receiving platform 14 further includes a plurality of sets of auxiliary platforms 119 located between the two sets of main platforms 118; the arrangement direction of the plurality of sets of auxiliary platforms 119 is the same as the arrangement direction of the two sets of main platforms 118;

[0042] The auxiliary platform body 119 is U-shaped, and the bottom is fixed to the bottom plate 117; a group of end feet on the auxiliary platform body 119 that are far away from the unloading ramp 10 are provided with a buffer component 120 for buffering the hardware shaft 2; the buffer component 120 includes a buffer air bag 121 whose lower end is fixed to the end foot of the auxiliary platform body 119, and a steel wire rope 122 whose two ends are respectively fixed to the upper end of the buffer air bag 121 and the end foot of the auxiliary platform body 119. After the hardware shaft 2 slides out of the sub-slope 19, it contacts the buffer air bag 121 for buffering. Then it falls downward along the buffer air bag 121 and slides into the accommodating groove 182, so that the buffer air bag 121 not only buffers the metal shaft 2, but also guides the metal shaft 2; at the same time, the buffer air bag 121 is limited by the wire rope 122, and the upper end of the buffer air bag 121 will bend downward after being squeezed by the hardware shaft 2. However, since the buffer air bag 121 is filled with gas with a density less than that of air, the buffer air bag 121 will automatically return to its original shape for the next buffering.

[0043] like Figure 1 , Figure 4 as well as Figure 6 As shown, the first limiting assembly includes a plurality of first limiting ejector pins 123 for limiting the position of the hardware shaft 2; the arrangement direction of the plurality of first limiting ejector pins 123 is the same as the length direction of the hardware shaft 2;

[0044] The second driving assembly 15 includes a first guide sleeve 124 adapted to the first position-limiting ejector pin 123, a first rubber airbag 125 inserted in the first guide sleeve 124, and a first air pipe 126 connected to one end of the first rubber airbag 125; the first rubber airbag 125 is fixed to the first guide sleeve 124; one end of the first rubber airbag 125 away from the first air pipe 126 is fixed to the needle tail of the first position-limiting ejector pin 123; the first guide sleeve 124, the first rubber airbag 125 and the first air pipe 126 are all connected to the first position-limiting ejector pin 123. One-to-one correspondence; the second driving assembly 15 also includes a mounting frame 127 for mounting the first guide sleeve 124, and a first air pump (not shown in the figure) for synchronously pumping and deflating air from the multiple groups of first air pipes 126. When the first air pump deflates, the first rubber airbag 125 contracts to drive the first limit ejector pin 123 to reset upward, and the hardware shaft 2 at the lowest position on the unloading ramp 10 slides down and falls into the receiving groove 182 of the material receiving platform 14; on the contrary, when the first air pump is inflated, the first rubber airbag 125 expands to drive the first limit ejector pin 123 downward, thereby entering the limit state;

[0045] The partition assembly includes a plurality of groups of second limiting ejector pins 128; the arrangement direction of the plurality of groups of second limiting ejector pins 128 is the same as the length direction of the hardware shaft 2; the third driving assembly 16 includes a second guide sleeve 129 adapted to the second limiting ejector pin 128, a second rubber airbag inserted in the second guide sleeve 129, and a second air pipe 130 connected to one end of the second rubber airbag; the second rubber airbag is fixed to the second guide sleeve 129; the end of the second rubber airbag away from the second air pipe 130 is fixed to the needle tail of the second limiting ejector pin 128; the second guide sleeve 129, the second rubber airbag and the second air pipe 130 all correspond to the second limiting ejector pin 128 one by one; the mounting frame 127 is also used to mount the second limiting ejector pin 128, the second rubber airbag is fixed to the second guide sleeve 129, and the second rubber airbag is fixed to the second air pipe 130. The three-drive assembly 16 also includes a second air pump (not shown in the figure) for synchronously pumping and deflating air from multiple groups of second air pipes 130. When the second air pump deflates, the second rubber airbag contracts to drive the second limiting ejector pin 128 to reset upward, and the hardware shaft 2 on the unloading ramp 10 rolls downward until the first limiting ejector pin 123 fits with the hardware shaft 2 at the lowest position on the unloading ramp 10; after fitting, the second air pump is inflated, and the second rubber airbag expands to drive the second limiting ejector pin 128 downward, separating the hardware shaft 2 at the lowest position on the unloading ramp 10 from the hardware shaft 2 at the second lowest position; therefore, by controlling the alternating lifting and lowering of the first limiting ejector pin 123 and the second limiting ejector pin 128, the hardware shafts 2 can be discharged one by one, which is easy to control and low in cost.

[0046] It should be noted that the components and component structures of the third driving assembly 16 and the second driving assembly 15 are the same.

[0047] like Figure 1As shown, a second unloading slope 186 is provided at the bottom of the groove of the material box 11 toward the higher end of the unloading ramp 10, so as to facilitate the automatic rolling of the hardware shaft 2 to the lower movable top plate 12; an isolation plate 132 is also fixed in the material box 11, which is inclined downward; the distance between the higher end of the isolation plate 132 and the unloading ramp 10 is smaller than the distance between the lower end of the isolation plate 132 and the unloading ramp 10. When there are many hardware shafts 2, some of the hardware shafts 2 can be stacked on the side of the isolation plate 132 away from the unloading ramp 10, thereby reducing the pushing pressure of the first driving component 13; the automatic loading equipment also includes a shaking component for shaking the hardware shaft 2 in the material box 11; the shaking component is a linear vibrator 133, which speeds up the speed at which the hardware shaft rolls to the movable top plate.

[0048] Among them, the first driving component 13 includes but is not limited to a cylinder; the fourth driving component 18 includes but is not limited to a cylinder; and the fifth driving component 116 includes but is not limited to a cylinder.

[0049] The first material detection component 112 includes but is not limited to a photoelectric sensor; the second material detection component 113 includes but is not limited to a photoelectric sensor.

[0050] Embodiment 3

[0051] This embodiment provides a method for using an automated feeding device, such as Figure 8 As shown, the following steps are included:

[0052] Step S101: The first driving assembly drives the movable top plate in the material box to move upward, and the hardware shaft moves upward along with the movable top plate.

[0053] Step S102: After reaching the top of the material unloading ramp, the hardware shaft slides down along the first material unloading slope to reach the material unloading ramp.

[0054] Step S103: the first air pump is deflated, the first rubber airbag contracts and drives the first limit ejector pin to reset upward, and the lowest hardware shaft on the unloading ramp slides down into the receiving groove of the material receiving platform.

[0055] Step S104: The fourth driving assembly drives the material receiving platform to move to the upper material position.

[0056] Step S105: After the material receiving platform reaches the loading position, the fifth driving assembly drives the positioning pin to move into the positioning slot, and the hardware shaft is slightly moved upward under the push of the positioning pin to allow the robot to pick up the material.

[0057] Step S106: the first air pump is inflated, the first rubber airbag expands and drives the first limit ejector pin downward, the second air pump is deflated, the second rubber airbag contracts and drives the second limit ejector pin to reset upward, and the hardware shaft on the material discharge ramp rolls downward until the first limit ejector pin fits with the lowest hardware shaft on the material discharge ramp.

[0058] Step S107: After lamination, the second air pump is inflated, and the second rubber airbag expands to drive the second limit ejector downward, separating the hardware shaft at the lowest position and the hardware shaft at the second lowest position on the unloading ramp.

[0059] By adopting the method provided in this embodiment, the second drive assembly and the third drive assembly can be used to alternately work to realize the discharge of the hardware shafts one by one; at the same time, the hardware shafts can be cached through the unloading ramp, which has a good anti-jamming effect and a more stable loading effect.

[0060] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the appended claims of the present invention.

Claims

1. An automatic feeding device for shaft parts, characterized in that: It includes a material unloading ramp, a material box located at the higher end of the material unloading ramp, a movable top plate carrying a hardware shaft in the material box, and a first driving component that drives the movable top plate to approach or move away from the top of the material unloading ramp along the vertical plane; the upper end of the movable top plate is provided with a first material unloading inclined surface directly facing the material unloading ramp; the automatic loading equipment also includes a material receiving platform located at the lower end of the material unloading ramp; the material receiving platform is used to receive the hardware shaft that slides out of the material unloading ramp; The automatic loading equipment also includes a first limit component for preventing the hardware shaft at the lowest position on the material unloading ramp from sliding down, a second drive component for driving the first limit component to move longitudinally, a separation component, and a third drive component for driving the separation component to move longitudinally; the separation component is used to separate the hardware shaft at the lowest position on the material unloading ramp from the hardware shaft at the second lowest position; The automatic loading equipment further comprises a frame; the unloading ramp, the material box, the first drive assembly, the second drive assembly and the third drive assembly are all arranged on the frame; The frame is also provided with a loading position indicating the material picking position of the manipulator, and a fourth driving component driving the material receiving platform to approach or move away from the loading position along a horizontal plane; The material receiving platform is provided with a receiving groove for accommodating the hardware shaft; the surfaces on both sides of the material receiving platform are provided with positioning grooves; the arrangement direction of the two groups of positioning grooves is perpendicular to the movement direction of the material receiving platform; The automatic loading equipment further comprises a second limiting assembly for limiting the position of the material receiving platform on the loading position; the second limiting assembly comprises a positioning pin adapted to the positioning groove, and a fifth driving assembly for driving the positioning pin to approach or move away from the positioning groove along a horizontal plane; the positioning pin corresponds to the positioning groove one by one; the fifth driving assembly corresponds to the positioning pin one by one; each of the fifth driving assemblies is fixed to the frame; The first limiting assembly includes a plurality of groups of first limiting ejector pins for limiting the position of the hardware shaft; the arrangement direction of the plurality of groups of first limiting ejector pins is the same as the length direction of the hardware shaft; The second driving assembly includes a first guide sleeve adapted to the first position-limiting ejector pin, a first rubber airbag inserted in the first guide sleeve, and a first air pipe connected to one end of the first rubber airbag; the first rubber airbag is fixed to the first guide sleeve; one end of the first rubber airbag away from the first air pipe is fixed to the needle tail of the first position-limiting ejector pin; the first guide sleeve, the first rubber airbag and the first air pipe all correspond to the first position-limiting ejector pin one by one; the second driving assembly also includes a mounting frame for mounting the first guide sleeve, and a first air pump for synchronously pumping and degassing air from a plurality of groups of the first air pipes; The partition assembly includes a plurality of groups of second limit pins; the arrangement direction of the plurality of groups of the second limit pins is the same as the length direction of the hardware shaft; the third drive assembly includes a second guide sleeve adapted to the second limit pin, a second rubber airbag inserted in the second guide sleeve, and a second air pipe connected to one end of the second rubber airbag; the second rubber airbag is fixed to the second guide sleeve; the end of the second rubber airbag away from the second air pipe is fixed to the needle tail of the second limit pin; the second guide sleeve, the second rubber airbag and the second air pipe are all in one-to-one correspondence with the second limit pin; the mounting frame is also used to install the second limit pin; the third drive assembly also includes a second air pump for synchronously pumping and deflating air from the plurality of second air pipes; the accommodating groove is V-shaped and connected to the positioning groove; both ends of the hardware shaft are provided with chamfers; the end of the positioning pin extending into the positioning groove is provided with an active inclined surface that fits the chamfer on the hardware shaft during positioning; The material receiving platform comprises a horizontal bottom plate, and two sets of main platform bodies respectively fixed at both ends of the bottom plate; the two sets of main platform bodies cooperate to support the hardware shaft; the opposite side surfaces of the two sets of main platform bodies are both provided with the accommodating grooves; The material receiving platform further comprises a plurality of groups of auxiliary platforms located between the two groups of main platforms; the arrangement direction of the plurality of groups of auxiliary platforms is the same as the arrangement direction of the two groups of main platforms; The auxiliary platform body is U-shaped, and the bottom is fixed to the base plate; a group of end feet on the auxiliary platform body that are farther away from the unloading ramp are provided with a buffer component for buffering the hardware shaft; the buffer component includes a buffer air bag whose lower end is fixed to the end feet of the auxiliary platform body, and a steel wire rope whose two ends are respectively fixed to the upper end of the buffer air bag and the end feet of the auxiliary platform body, and the buffer air bag is filled with a gas with a density less than that of air.

2. The automatic feeding equipment according to claim 1, characterized in that: The unloading ramp includes multiple groups of sub-ramps; the arrangement direction of the multiple groups of sub-ramps is the same as the length direction of the hardware shaft; each of the sub-ramps is fixed to the frame; The automated loading equipment also includes a height limit plate parallel to the slope of the unloading ramp; the height limit plate is fixed to the frame; the distance between the height limit plate and the slope of the unloading ramp is adapted to the diameter of the hardware shaft; a guide piece inclined upward is fixed at the higher end of the height limit plate; the guide piece faces the higher end of the unloading ramp.

3. The automatic feeding equipment according to claim 2, characterized in that: The frame is also fixedly provided with a first material detection component for detecting whether there is a hardware shaft between two adjacent groups of the sub-slope platforms, and a second material detection component for detecting whether there is a hardware shaft on the material receiving platform.

4. The automatic feeding equipment according to claim 1, characterized in that: The bottom of the material box trough is provided with a second material unloading slope facing the higher end of the material unloading ramp; an isolation plate slanting downward is also fixed in the material box; the distance between the higher end of the isolation plate and the material unloading ramp is smaller than the distance between the lower end of the isolation plate and the material unloading ramp; the automatic loading equipment also includes a material shaking component for shaking the hardware shaft in the material box; the material shaking component is a linear vibrator.

5. A method for using an automatic feeding device, based on the automatic feeding device dedicated to shaft parts according to any one of claims 1 to 4, characterized in that: The steps include: The first driving assembly drives the movable top plate in the material box upward, and the hardware shaft moves upward along with the movable top plate; After reaching the top of the unloading ramp, the hardware shaft slides down along the first unloading slope and reaches the unloading ramp; The first air pump deflates, the first rubber airbag contracts, and drives the first limit ejector pin to reset upward, and the hardware shaft at the lowest position on the unloading ramp slides down into the receiving groove of the material receiving platform; The fourth driving assembly drives the material receiving platform to move to the upper material position; After the material receiving platform reaches the loading position, the fifth driving assembly drives the positioning pin to move into the positioning slot, and the hardware shaft slightly moves upward under the push of the positioning pin to allow the manipulator to pick up the material; The first air pump is inflated, the first rubber airbag expands and drives the first limit ejector downward, the second air pump is deflated, the second rubber airbag contracts and drives the second limit ejector to reset upward, and the hardware shaft on the material discharge ramp rolls downward until the first limit ejector fits with the hardware shaft at the lowest position on the material discharge ramp; After lamination, the second air pump is inflated, and the second rubber airbag expands to drive the second limit ejector downward, separating the hardware shaft at the lowest position and the hardware shaft at the second lowest position on the unloading ramp.

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