Ring feeding device, conveying system and feeding method

Abstract

The present invention discloses a ring loading device, a conveying system and a loading method, including a loading pushing mechanism and a material transfer mechanism, the loading pushing mechanism is slidably connected to the material transfer mechanism, the loading pushing mechanism includes a first calibration component, a first drive component, a second drive component, a transport channel and a pushing rod, the first drive component is connected to the first calibration component, and the second drive component is connected to the pushing rod; the material transfer mechanism includes a third drive component, a material transfer base, a fourth drive component and a second calibration component, a positioning channel is provided between the second calibration component and the material transfer base, the positioning channel is movably connected to the transport channel, and the material blocking guard plate is provided at the end of the positioning channel. The present invention can perform continuous loading operations on rings, and the loading personnel only need to lift the rings into the loading pushing mechanism, without making various adjustments to the rings, thereby improving the loading efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of ring feeding, and in particular to a ring feeding device, a conveying system and a feeding method. Background Art

[0002] Ring products are widely used in slewing bearings, railway transportation, port machinery, petrochemical industry, shipbuilding industry, aerospace, national defense and military fields. Testing and packaging them before leaving the factory is of great significance to improving product quality.

[0003] Ring product inspection currently relies on manual inspection through guide trough conveying or through truss manipulators. The truss manipulator method involves manually loading the rings onto hooks below the truss manipulator, using a jib crane. Once loaded, the truss manipulator then transports the rings to a designated location for manual inspection or packaging. This loading method presents significant impact, a mismatch between loading and conveying speeds, high safety risks, high labor intensity, and low efficiency.

[0004] In view of the above-mentioned defects, the inventors of the present invention finally obtained the present invention after a long period of research and practice. Summary of the Invention

[0005] In order to solve the above technical defects, the present invention discloses a ring feeding device, a conveying system and a feeding method.

[0006] A ring loading device includes a loading pushing mechanism and a material transfer mechanism, the loading pushing mechanism includes a first calibration component, a first drive component, a second drive component, a transport channel and a pushing rod, the material transfer mechanism includes a third drive component, a material transfer base, a fourth drive component and a second calibration component; the first drive component drives the first calibration component to move along the length direction of the pushing rod, the pushing end of the pushing rod is arranged in the transport channel, the second drive component drives the pushing rod to move along the forward direction of the ring to be detected, the third drive component drives the material transfer base to move along the length direction of the material transfer base, the second calibration component and the fourth drive component are both arranged on the material transfer base, and the fourth drive component drives the second calibration component to move along the length direction of the material transfer base; a positioning channel is provided between the second calibration component and the material transfer base, and the positioning channel is movably connected to the transport channel.

[0007] Furthermore, the first calibration component includes an inner frame and an outer frame, the inner frame is arranged inside the outer frame, a plurality of first guide wheel groups are arranged in the outer frame, and the inner frame is connected to the outer frame through the plurality of first guide wheel groups; the first driving component includes a first motor, a first rack and a first connecting plate, the first connecting plate is fixedly arranged on the outer frame, the first motor is fixedly arranged on the first connecting plate, the first rack is fixedly arranged on the inner frame, a first gear is arranged on the output shaft of the first motor, and the output shaft of the first motor is meshed with the first rack through the first gear.

[0008] Furthermore, the feeding pushing mechanism also includes a base, a first slide rail is provided above the base, and the second driving assembly includes a second motor, a second connecting plate and a second rack; the second connecting plate is slidably connected to the base through the first slide rail, the second rack is fixedly provided on the base, the second motor is fixedly provided on the second connecting plate, a second gear is provided on the output shaft of the second motor, the output shaft of the second motor passes through the second connecting plate, and the output end of the second motor is meshed with the second rack through the second gear.

[0009] Furthermore, the loading pushing mechanism also includes a first fixed guardrail and a protective plate, the protective plate is arranged on the first fixed guardrail, the pushing rod is arranged below the protective plate, the inner frame is provided with a first movable guardrail along its forward direction, and first pulleys are provided on both sides of the bottom of the first movable guardrail. A transport channel that cooperates with the positioning channel is formed between the first movable guardrail and the first fixed guardrail, one end of the pushing rod is connected to the second connecting plate, and the other end is located in the transport channel, and the distance between the first movable guardrail and the first fixed guardrail is adjusted by a first motor.

[0010] Furthermore, the material transfer mechanism also includes a second slide rail and a support frame, the support frame is located between the second slide rails on both sides, the third drive assembly includes a third motor and a third rack, the material transfer base is slidingly connected to the second slide rail through a roller, the third motor is fixedly set on the material transfer base, the third rack is set on the support frame, and a third gear is set on the output shaft of the third motor. The output shaft of the third motor passes through the material transfer base, and the output shaft of the third motor is meshed with the third rack through the third gear.

[0011] Furthermore, the second calibration component includes a fixed frame and a movable frame, the fixed frame is fixedly set on the material transfer base, the movable frame is set inside the fixed frame, a plurality of second guide wheel groups are set inside the fixed frame, and the movable frame is connected to the fixed frame through the plurality of second guide wheel groups; a second movable guardrail is set on the movable frame, and second pulleys are set on both sides of the bottom of the second movable guardrail.

[0012] Furthermore, the material transfer mechanism also includes a material blocking guard plate, a second fixed guardrail is provided on the material transfer base, and a positioning groove is provided on the material transfer base. The positioning groove is "V-shaped" and is provided between the second movable guardrail and the second fixed guardrail. The positioning groove, the second movable guardrail and the second fixed guardrail constitute the positioning channel, and the material blocking guard plate is provided at the end of the positioning channel.

[0013] Furthermore, the fourth drive assembly includes a fourth motor and a fourth rack; the fourth motor is fixedly mounted on the material transfer base, the fourth rack is mounted on the movable frame, a fourth gear is mounted on the output shaft of the fourth motor, and the output shaft of the fourth motor is meshed with the fourth rack through the fourth gear.

[0014] A conveying system includes the above-mentioned ring loading device, and the conveying system also includes a dual Z-axis manipulator and a loading cantilever crane. The loading cantilever crane is used to lift the ring to be inspected into the transportation channel of the loading push mechanism, and the dual Z-axis manipulators are both provided with hooks for loading rings.

[0015] A method for loading materials using the above-mentioned conveying system comprises the following steps:

[0016] S1: The loader adjusts the distance between the first movable guardrail and the first fixed guardrail, as well as the distance between the second movable guardrail and the second fixed guardrail, according to the height of the ring to be inspected, so as to accommodate rings of different heights and sizes and prevent the rings from tipping over;

[0017] S2: The loading personnel use the loading cantilever crane to lift the ring to be tested into the transport channel of the loading pushing mechanism. The second motor inside the loading pushing mechanism is activated, driving the push rod to move. The push rod slowly pushes the ring to be tested into the positioning channel of the material transfer mechanism. The material blocking guard restricts the forward direction of the ring moving onto the material transfer mechanism.

[0018] S3: The ring blocked by the material blocking plate is finally located in the "V-shaped" positioning groove of the material transfer mechanism and is in an upright state. One of the two Z-axis manipulators moves to the material receiving position, and the material transfer mechanism transports the ring to be inspected to the inside of the hook of the Z-axis manipulator. The Z-axis manipulator that has completed the material receiving moves a certain distance along the Z axis, so that the material transfer mechanism and the ring to be inspected are separated, completing the loading task of one of the Z-axis manipulators;

[0019] S4: The material transfer mechanism that completes loading returns to its initial position and repeats the above actions to complete the loading task of another Z-axis robot.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] 1. The present invention can continuously load rings. The loading method is connected with the original cantilever crane loading method. The loading personnel only need to lift the rings into the loading and pushing mechanism. There is no need to make various adjustments to the rings, which improves the loading efficiency and reduces the labor intensity of the loading personnel.

[0022] 2. The present invention transports the rings to the inside of the Z-axis manipulator hook through the material transfer mechanism, avoiding contact between the loading personnel and the Z-axis manipulator, improving loading safety, reducing the impact of the ring hanging in the air on the Z-axis manipulator, and extending the service life of the Z-axis manipulator;

[0023] 3. The present invention adopts dual Z-axis manipulators, which greatly improves the loading efficiency. The conveying speed of the Z-axis manipulator matches the loading speed, avoiding the phenomenon that when one Z-axis manipulator has not completed loading, the other Z-axis manipulator completes material conveying and returns to the loading position. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 Schematic diagram of the overall structure of the ring feeding device of the present invention;

[0025] Figure 2 This is a schematic diagram of the structure of the feeding and pushing mechanism of the present invention;

[0026] Figure 3 This is a working diagram of the feeding and pushing mechanism of the present invention;

[0027] Figure 4 This is a structural diagram of the material transfer mechanism of the present invention;

[0028] Figure 5 This is a schematic diagram of the material retaining plate structure of the present invention;

[0029] Figure 6 Schematic diagram of the structure of the conveying system of the present invention;

[0030] Figure 7It is a working schematic diagram of the material transfer mechanism of the present invention.

[0031] The numbers in the figure represent:

[0032] 1-Feeding mechanism; 2-Material transfer mechanism; 3-Material blocking plate; 4-Ring to be tested; 5-Feeding cantilever crane; 6-First Z-axis manipulator; 7-Second Z-axis manipulator; 8-Truss; 101-First fixed guardrail; 102-Protection plate; 103-First movable guardrail; 104-First pulley; 105-Inner frame; 106-Outer frame; 107-First guide wheel group; 108-First connecting plate; 109-First motor; 110-First rack; 111-Base; 112-Second rack; 113- Second motor; 114-first slide rail; 115-second connecting plate; 116-pushing rod; 201-second slide rail; 202-support frame; 203-material transfer base; 204-third motor; 205-third connecting plate; 206-third rack; 207-movable frame; 208-second movable guardrail; 209-second pulley; 210-fixed frame; 211-second guide wheel group; 212-fourth motor; 213-fourth rack; 214-positioning slot; 215-second fixed guardrail; 31-rib plate. DETAILED DESCRIPTION

[0033] The above and other technical features and advantages of the present invention are described in more detail below with reference to the accompanying drawings.

[0034] Example 1

[0035] In this embodiment, if Figure 1 As shown, Figure 1 It is a schematic diagram of the overall structure of a ring loading device; a ring loading device, comprising a loading pushing mechanism 1 and a material transfer mechanism 2, the loading pushing mechanism 1 comprising a first calibration component, a first drive component, a second drive component, a transport channel and a pushing rod 116, the material transfer mechanism 2 comprising a third drive component, a material transfer base 203, a fourth drive component and a second calibration component; the first drive component drives the first calibration component to move along the length direction of the pushing rod 116, the pushing end of the pushing rod 116 is arranged in the transport channel, the second drive component drives the pushing rod 116 to move along the forward direction of the ring to be detected, the third drive component drives the material transfer base 203 to move along the length direction of the material transfer base 203, the second calibration component and the fourth drive component are both arranged on the material transfer base 203, and the fourth drive component drives the second calibration component to move along the length direction of the material transfer base 203; a positioning channel is provided between the second calibration component and the material transfer base 203, and the positioning channel is movably connected to the transport channel.

[0036] like Figure 2 As shown, Figure 2 It is a schematic diagram of the structure of the feeding pushing mechanism; the first calibration component includes an inner frame 105 and an outer frame 106, the outer frame 106 is fixedly set on the ground, the inner frame 105 is set inside the outer frame 106, and the first guide wheel groups 107 are respectively set on the four cross beams inside the outer frame 106. The inner frame 105 is connected to the outer frame 106 through four first guide wheel groups 107. The first guide wheel groups 107 are set along the direction of the inner frame's movement. The four pairs of first guide wheel groups 107 limit the freedom of the inner frame 105, so that the inner frame 105 can only move forward in the longitudinal direction.

[0037] The first driving assembly includes a first motor 109, a first rack 110 and a first connecting plate 108. The first connecting plate 108 is fixedly set on the crossbeam of the outer frame 106. The first motor 109 is fixedly set on the first connecting plate 108. The first rack 110 is fixedly set on the inner frame 105. A first gear is set on the output shaft of the first motor 109. The output shaft of the first motor 109 is meshed with the first rack 110 through the first gear. The first rack 110 moves relative to the first motor 109, thereby driving the inner frame 105 to move.

[0038] like Figure 3 As shown, Figure 3 114 is provided on both sides of the upper part of the base 111, and the second driving assembly includes a second motor 113, a second connecting plate 115 and a second rack 112; first rollers are provided on all sides below the second connecting plate 115, and the four first rollers roll on the first slide rails 114 on the inner and outer sides of the base 111 to ensure that the second connecting plate 115 moves in the direction of the ring member moving forward, and the second rack 112 is fixedly provided on the base 111, and the second rack 112 is located between the first slide rails 114 on the inner and outer sides, and the second motor 113 is fixedly provided on the second connecting plate 115, and a second gear is provided on the output shaft of the second motor 113, and the output shaft of the second motor 113 passes through the second connecting plate 115 and is meshed with the second rack 112 through the second gear. The second motor 113 moves relative to the second rack 112, thereby driving the second connecting plate 115 to move.

[0039] The feeding pushing mechanism 1 also includes a first fixed guardrail 101 and a protective plate 102. The first fixed guardrail 101 is fixedly set on the ground. The protective plate 102 is set on the first fixed guardrail 101 and fixedly connected to the first fixed guardrail 101. The initial position of the pushing rod 116 is located below the protective plate 102 to prevent the ring 4 to be tested from causing damage to the pushing rod 116. The inner frame 105 is provided with a first movable guardrail along its forward direction. First pulleys 203 are provided on both sides of the bottom of the first movable guardrail. A transport channel that cooperates with the positioning channel is formed between the first movable guardrail and the first fixed guardrail 101. One side of the pushing rod 116 One end is a connecting part, and the other end is a suspended part. One end of the pushing rod 116 is fixedly connected to the second connecting plate 115 by a clamp, and the other end is located in the transport channel. The second motor 113 drives the second connecting plate 115 forward, thereby driving the pushing rod 116 to move. The pushing rod 116 is used to push the ring forward. The distance between the first movable guardrail and the first fixed guardrail 101, that is, the width of the transport channel is adjusted by the first motor 109. By adjusting the forward and reverse rotation of the first motor 109, the inner frame 105 is driven forward or backward, and then the gap between the inner frame 105 and the first fixed guardrail 101 is adjusted to adapt to rings of different heights and avoid overturning of the rings.

[0040] like Figure 4 As shown, Figure 4 Schematic diagram of the material transfer mechanism structure; the material transfer mechanism 2 also includes a second slide rail 201 and a support frame 202, the second slide rail 201 and the support frame 202 are fixedly arranged in the ground foundation pit, the support frame 202 is located between the second slide rails 201 on both sides, the third drive assembly includes a third motor 204, a third connecting plate 205 and a third rack 206, four second rollers are provided below the material transfer base 203, and the material transfer base 203 realizes horizontal movement above the second slide rail 201 of the third connecting plate 205 through the second rollers, and the third motor The machine 204 seats on the third connecting plate 205, the third connecting plate 205 is fixedly set on the material transfer base 203, the third motor 204 is installed on the third connecting plate 205, the third rack 206 is set on the support frame 202, and the output shaft of the third motor 204 is provided with a third gear. The output shaft of the third motor 204 passes through the third connecting plate 205 and the material transfer base 203 third connecting plate 205 in sequence and is meshed with the third rack 206 through the third gear. The third motor 204 drives the material transfer base 203 to move on the second slide rail 201 by forward and reverse rotation.

[0041] The second calibration component includes a fixed frame 210 and a movable frame 207. The fixed frame 210 is fixedly set on the material transfer base 203, and the movable frame 207 is set inside the fixed frame 210. Second guide wheel groups 211 are set on the four beams inside the fixed frame 210. The second guide wheel groups 211 are set along the forward direction of the movable frame 207. The movable frame 207 is slidingly connected to the fixed frame 210 through multiple second guide wheel groups 211; four pairs of second guide wheel groups 211 limit the freedom of the movable frame 207, so that the movable frame 207 can only move forward in the longitudinal direction; a second movable guardrail 208 is set on the movable frame 207, and second pulleys 209 are set on both sides of the bottom of the second movable guardrail 208. The second movable guardrail 208 can be slidably connected to the material transfer base 203 through the second pulley 209.

[0042] The material transfer mechanism also includes a material blocking guard plate 3, a second fixed guardrail 215 is provided on the material transfer base 203, and a positioning groove 214 is provided on the material transfer base 203. The positioning groove 214 is "V-shaped", and the positioning groove 214 is arranged between the second movable guardrail 208 and the second fixed guardrail 215. The positioning groove 214, the second movable guardrail 208 and the second fixed guardrail 215 form a positioning channel. The positioning groove 214 can prevent the ring parts running on the material transfer mechanism 2 from moving back and forth, and the material blocking guard plate 3 is located at the end of the positioning channel.

[0043] The fourth drive assembly includes a fourth motor 212 and a fourth rack 213; the fourth motor 212 is fixedly set on the material transfer base 203, and the fourth rack 213 is set on the movable frame 207. A fourth gear is set on the output shaft of the fourth motor 212, and the output shaft of the fourth motor 212 is engaged with the fourth rack 213 through the fourth gear; by adjusting the fourth motor 212 to rotate forward and reverse, the second movable guardrail 208 is driven to move forward and backward, and then the distance between the second movable guardrail 208 and the second fixed guardrail 215 is adjusted.

[0044] like Figure 5 As shown, Figure 5 This is a schematic diagram of the material baffle plate structure. The material baffle plate 3 is fixed on the ground. A number of ribs are arranged behind the material baffle plate 3 to increase the strength and rigidity of the material baffle plate 3. The working plane of the material baffle plate 3 is parallel to the running route of the material transfer mechanism 2. The material baffle plate 3 can limit the forward direction of the ring parts that pass through the feeding and pushing mechanism 1 to the material transfer mechanism 2 to prevent the ring parts from escaping from the material transfer mechanism 2.

[0045] Example 2

[0046] like Figure 6 、 Figure 7 As shown, Figure 6 The schematic diagram of the conveying system structure is as follows: Figure 7 It is a working diagram of the material transfer mechanism; the conveying system includes a ring loading device, a loading cantilever crane 5 and a truss 8. The loading cantilever crane 5 is used to lift the ring 4 to be tested into the transportation channel of the loading pushing mechanism 1. Two Z-axis manipulators are provided on the truss 8, namely the first Z-axis manipulator 6 and the second Z-axis manipulator 7. Both of the Z-axis manipulators are provided with hooks for loading rings.

[0047] The ring part 4 to be inspected is transported to the inside of the hook of the first Z-axis manipulator 6. The first Z-axis manipulator 6 that has completed the material reception moves a certain distance along the Z-axis, so that the material transfer mechanism 2 is separated from the ring part 4 to be inspected, completing the loading task of the first Z-axis manipulator 6; the material transfer mechanism 2 that has completed the loading returns to the initial position, and the above actions are repeated to complete the loading task of the second Z-axis manipulator 7. The first Z-axis manipulator 6 and the second manipulator 7 work together to greatly improve the loading efficiency of the ring part 4 to be inspected.

[0048] It is worth noting that in the initial position, the push rod 116 is below the protective plate 102, and the ring part 4 to be inspected is hoisted into the loading pushing mechanism 1 through the loading cantilever 5. The ring part 4 to be inspected will not contact the push rod 116, thus avoiding damage to the push rod 116 caused by contact between the ring part 4 to be inspected and the push rod 116 during the loading process.

[0049] Example 3

[0050] A feeding method using the above-mentioned conveying system for feeding comprises the following steps:

[0051] S1: The loading personnel adjust the distance between the first movable guardrail and the first fixed guardrail 101 and the distance between the second movable guardrail 208 and the second fixed guardrail 215 according to the height of the ring 4 to be tested, so as to adapt to rings of different heights and prevent the rings from overturning.

[0052] S2: The loading personnel lifts the ring part 4 to be tested into the transport channel of the loading pushing mechanism 1 through the loading cantilever crane 5, and the second motor 113 inside the loading pushing mechanism 1 is activated to drive the pushing rod 116 to move. The pushing rod 116 slowly pushes the ring part 4 to be tested into the positioning channel of the material transfer mechanism 2, and the material blocking guard plate 3 limits the forward direction of the ring part moving onto the material transfer mechanism 2.

[0053] S3: The ring piece blocked by the material blocking guard plate 3 is finally located in the "V-shaped" positioning groove 214 of the material transfer mechanism 2 and is in an upright state. The first Z-axis manipulator 6 moves to the material receiving position. The material transfer mechanism 2 transports the ring piece 4 to be inspected to the inside of the hook of the first Z-axis manipulator 6. The first Z-axis manipulator 6 that has completed the material receiving moves a distance along the Z axis, so that the material transfer mechanism 2 is separated from the ring piece 4 to be inspected, and the loading task of the first Z-axis manipulator 6 is completed;

[0054] S4: After completing the loading, the material transfer mechanism 2 returns to the initial position and repeats the above actions to complete the loading task of the second Z-axis manipulator 7.

[0055] The size range of the rings to be tested is: outer diameter 700-1700mm, height 31-300mm, wall thickness (half the difference between outer diameter and inner diameter) 30-231mm; the maximum weight of a single piece is 1000Kg.

[0056] The above description is merely a preferred embodiment of the present invention and is intended to be illustrative rather than restrictive of the present invention. Those skilled in the art will appreciate that many changes, modifications, and even equivalents may be made to the present invention within the spirit and scope of the claims, all of which fall within the scope of protection of the present invention.

Claims

1. A ring feeding device, characterized in that: It includes a loading pushing mechanism and a material transfer mechanism, the loading pushing mechanism includes a first calibration component, a first drive component, a second drive component, a transport channel and a pushing rod, the material transfer mechanism includes a third drive component, a material transfer base, a fourth drive component and a second calibration component; the first drive component drives the first calibration component to move along the length direction of the pushing rod, the pushing end of the pushing rod is arranged in the transport channel, the second drive component drives the pushing rod to move along the forward direction of the ring to be detected, the third drive component drives the material transfer base to move along the length direction of the material transfer base, the second calibration component and the fourth drive component are both arranged on the material transfer base, and the fourth drive component drives the second calibration component to move along the length direction of the material transfer base; a positioning channel is provided between the second calibration component and the material transfer base, and the positioning channel is movably connected to the transport channel; The material transfer mechanism also includes a second slide rail and a support frame, the support frame is located between the second slide rails on both sides, the third drive assembly includes a third motor and a third rack, the material transfer base is slidably connected to the second slide rail through a roller, the third motor is fixedly arranged on the material transfer base, the third rack is arranged on the support frame, and a third gear is provided on the output shaft of the third motor, the output shaft of the third motor passes through the material transfer base, and the output shaft of the third motor is meshed with the third rack through the third gear; The second calibration assembly includes a fixed frame and a movable frame, the fixed frame is fixedly mounted on the material transfer base, the movable frame is disposed inside the fixed frame, a plurality of second guide wheel groups are disposed inside the fixed frame, and the movable frame is connected to the fixed frame via the plurality of second guide wheel groups; a second movable guardrail is disposed on the movable frame, and second pulleys are disposed on both sides of the bottom of the second movable guardrail; The material transfer mechanism also includes a material blocking guard plate, a second fixed guardrail is provided on the material transfer base, and a positioning groove is provided on the material transfer base. The positioning groove is "V-shaped" and is provided between the second movable guardrail and the second fixed guardrail. The positioning groove, the second movable guardrail and the second fixed guardrail constitute the positioning channel, and the material blocking guard plate is provided at the end of the positioning channel.

2. A ring feeding device according to claim 1, characterized in that: The first calibration component includes an inner frame and an outer frame, the inner frame is arranged inside the outer frame, and a plurality of first guide wheel groups are arranged in the outer frame, and the inner frame is connected to the outer frame through the plurality of first guide wheel groups; the first driving component includes a first motor, a first rack and a first connecting plate, the first connecting plate is fixedly arranged on the outer frame, the first motor is fixedly arranged on the first connecting plate, the first rack is fixedly arranged on the inner frame, and a first gear is arranged on the output shaft of the first motor, and the output shaft of the first motor is meshed with the first rack through the first gear.

3. A ring feeding device according to claim 2, characterized in that: The feeding pushing mechanism also includes a base, a first slide rail is provided above the base, and the second driving assembly includes a second motor, a second connecting plate and a second rack; the second connecting plate is slidably connected to the base through the first slide rail, the second rack is fixedly provided on the base, the second motor is fixedly provided on the second connecting plate, a second gear is provided on the output shaft of the second motor, the output shaft of the second motor passes through the second connecting plate, and the output end of the second motor is meshed with the second rack through the second gear.

4. A ring feeding device according to claim 3, characterized in that: The loading pushing mechanism also includes a first fixed guardrail and a protective plate, the protective plate is arranged on the first fixed guardrail, the pushing rod is arranged below the protective plate, the inner frame is provided with a first movable guardrail along its forward direction, and first pulleys are provided on both sides of the bottom of the first movable guardrail. A transport channel that cooperates with the positioning channel is formed between the first movable guardrail and the first fixed guardrail, one end of the pushing rod is connected to the second connecting plate, and the other end is located in the transport channel.

5. The ring feeding device according to claim 1, characterized in that: The fourth drive assembly includes a fourth motor and a fourth rack; the fourth motor is fixedly mounted on the material transfer base, the fourth rack is mounted on the movable frame, a fourth gear is mounted on the output shaft of the fourth motor, and the output shaft of the fourth motor is meshed with the fourth rack through the fourth gear.

6. A conveying system, characterized in that: It includes the ring loading device as described in any one of claims 1 to 5, and the conveying system also includes a dual Z-axis manipulator and a loading cantilever crane, the loading cantilever crane is used to lift the ring to be inspected into the transportation channel of the loading push mechanism, and the dual Z-axis manipulators are both provided with hooks for loading rings.

7. A material loading method using the conveying system according to claim 6, characterized in that: The following steps are involved: S1: The loader adjusts the distance between the first movable guardrail and the first fixed guardrail, as well as the distance between the second movable guardrail and the second fixed guardrail, according to the height of the ring to be inspected, so as to accommodate rings of different heights and sizes and prevent the rings from tipping over; S2: The loading personnel use the loading cantilever crane to lift the ring to be tested into the transport channel of the loading pushing mechanism. The second motor inside the loading pushing mechanism is activated, driving the push rod to move. The push rod slowly pushes the ring to be tested into the positioning channel of the material transfer mechanism. The material blocking guard restricts the forward direction of the ring moving onto the material transfer mechanism. S3: The ring blocked by the material blocking plate is finally located in the "V-shaped" positioning groove of the material transfer mechanism and is in an upright state. One of the two Z-axis manipulators moves to the material receiving position, and the material transfer mechanism transports the ring to be inspected to the inside of the hook of the Z-axis manipulator. The Z-axis manipulator that has completed the material receiving moves a certain distance along the Z axis, so that the material transfer mechanism and the ring to be inspected are separated, completing the loading task of one of the Z-axis manipulators; S4: The material transfer mechanism that completes loading returns to its initial position and repeats the above actions to complete the loading task of another Z-axis robot.

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