Laser welding of the clamp seat feeding tooling

Abstract

The utility model relates to hoop seat machining equipment technical field discloses hoop seat laser welding feeding frock, including vibrating disk and feeding groove, the vibrating disk includes disc body and vibrator, is provided with the advanced way in disc body inner wall spiral upwards, the advanced way is sequentially provided with flat advanced way section, baffle screening section and narrow way screening section along the transmission direction, and the place where the advanced way end and feeding groove are connected is equipped with the graded screening section. The scheme is through the combination setting baffle screening section, narrow way screening section and graded screening section, is convenient for unified feeding transmission in the body position of hoop seat, rejects the non - standard hoop seat transmission body position, only leaves the hoop seat with'the first end is in front, and the welding seam is upward' body position and is smoothly conveyed to the welding station, promotes the feeding accuracy, and further promotes the continuity of laser welding production.

Description

Technical Field

[0001] This utility model relates to the technical field of hoop processing equipment, specifically to a hoop laser welding feeding fixture. Background Technology

[0002] In the field of mechanical connections, clamps are widely used in the assembly of round or cylindrical objects such as pipes, hoses, and cables due to their convenient connection, fixing, and sealing performance. As the core component of the clamp, the welding quality of the clamp seat directly affects the overall performance of the clamp. Taking the welded clamp seat developed by the applicant as an example (the clamp seat structure is as follows...) Figure 1 As shown, the hoop includes a front end and a rear end, with the front end being wider than the rear end. The side where the weld seam is located is the welding surface, and the opposite side is the back side, which is narrower than the welding surface. To ensure the accuracy, stability, and production continuity of laser welding, the conveying direction of all hoops must be strictly standardized, such as feeding them into the welding station with the welding end (also known as the front end) in front and the weld seam facing upwards. Therefore, a technology based on vibratory feeder for material screening has emerged, aiming to achieve orderly feeding of hoops in a fixed direction, laying the foundation for subsequent welding processes.

[0003] Currently, the applicant mainly uses a two-stage air-blowing screening device added to the vibratory feeder to screen hoops that do not conform to the conveying direction, utilizing the difference in width and size at both ends of the hoop. Based on pneumatic principles, this device uses two airflow impacts to remove hoops that are reversed or incorrectly oriented, improving the accuracy of the feeding direction to some extent. However, this screening method still has technical bottlenecks and cannot completely avoid missed screening. In actual production, due to factors such as the shape and material characteristics of the hoop, as well as airflow interference, missed screening often occurs, making it impossible to effectively identify and remove all hoops with incorrect feeding directions. This results in some hoops with incorrect feeding directions entering the welding station. Equipment downtime or malfunctions require secondary adjustments to the hoops with incorrect directions, increasing the complexity of the production process, significantly reducing overall production efficiency, and increasing production costs, failing to meet the demands of modern industrial production for high efficiency and precision.

[0004] Therefore, developing a high-accuracy laser welding feeding fixture for hoop seats not only effectively compensates for the shortcomings of existing technologies, but also improves the feeding accuracy, which is of great significance for realizing automatic feeding of laser welding of hoop seats and improving the continuity of laser welding. Utility Model Content

[0005] This utility model aims to provide a tooling for feeding materials for laser welding of hoop seats, in order to solve the technical problem of missed screening during the feeding of hoop seats in the applicant's self-developed laser welding process, which reduces the continuity of laser welding.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a laser welding feeding fixture for a hoop, comprising a vibratory plate and a feeding trough; the vibratory plate comprises a plate body and a vibrator, and a forward path is spirally arranged on the inner wall of the plate body. The forward path is provided with a flat forward path section, a baffle screening section and a narrow path screening section in sequence along the conveying direction, and a stepped screening section is provided at the end of the forward path where it connects with the feeding trough.

[0007] The principles and advantages of this solution:

[0008] 1. Compared to the applicant's previous use of a "two-stage air-blowing screening device" which resulted in missed screenings of the hoop seats, this solution combines a baffle screening section, a narrow-channel screening section, and a stepped screening section. This facilitates standardized hoop seat positioning during material feeding and conveying, eliminating non-standard hoop seat positions and ensuring that only hoop seats with the "head end in front, weld seam facing upwards" position are successfully conveyed to the welding station. This improves feeding accuracy and, consequently, enhances the continuity of laser welding production. Specifically, the hoop seats screened using this solution through the combination of three methods meet 100% of the hoop seat positioning requirements for laser welding.

[0009] 2. Compared to the applicant's previous use of a "two-stage air-blowing screening device" which required the additional installation of an "air-blowing device", this solution relies entirely on mechanical structures to screen the position of the hoop, except for the vibrator, resulting in lower energy consumption and cost.

[0010] Preferably, as an improvement, the inner wall of the disc of the baffle screening section is fixed with baffles, and the gap between the baffles and the inner wall of the disc gradually increases along the conveying direction of the hoop, and the forward path of the baffle screening section gradually narrows along the transmission direction of the hoop.

[0011] Beneficial effects: This scheme, employing the above-mentioned configuration, ensures that the forward path of the baffle screening section gradually narrows along the transmission direction of the hoop, facilitating the return of the hoop with the weld seam facing downwards to the vibratory feeder during the conveying process. Specifically, as shown... Figure 1 As shown, the side where the hoop weld is located is the welding surface, and the opposite side is the back side. The back side of the hoop is narrower than the welding surface. Therefore, when the back side of the hoop is conveyed along the forward path (i.e., the welding surface is facing up), it meets the feeding requirements. However, when the welding surface of the hoop is conveyed along the forward path (i.e., the welding surface is facing down), it will be blocked when it reaches the end of the baffle due to the narrowing of the forward path, causing instability in the center of gravity. This results in the first screening of the hoop conveying position.

[0012] Preferably, as an improvement, the angle between the forward path of the baffle screening section and the inner wall of the disc is less than 90°.

[0013] Beneficial effects: The above-mentioned setup effectively improves the first round of screening of the hoop during the conveying process on the relatively narrower baffle screening section, and prevents the hoops that meet the requirements with their backs facing down from falling off during the upward vibration conveying.

[0014] Preferably, as an improvement, the advancing path of the narrow channel screening section is narrower than other advancing paths, and the angle between the advancing path of the narrow channel screening section and the inner wall of the disc is less than 90°.

[0015] Beneficial effect: The above-mentioned setup in this solution facilitates the further blocking of hoop seats that are misaligned (including tilted, flipped, or with the welded surface facing down).

[0016] Preferably, as an improvement, the angle between the advancing track and the inner wall of the disc gradually decreases in the flat advancing track section, the baffle screening section, and the narrow track screening section.

[0017] Beneficial effects: The above-mentioned setup facilitates the smooth upward conveying of the hoop seats into the forward path under the action of the vibrator. The sequentially arranged screening structures (including the baffle screening section and the narrow channel screening section) facilitate the rejection of hoop seats with the welded surface facing down, standing on their sides, or upside down. While ensuring the standardized hoop seat loading position and improving the loading accuracy, this also enhances the hoop seat conveying stability and ensures the loading volume.

[0018] Preferably, as an improvement, the feeding trough includes an inclined trough and a flat trough, with a vibrator provided below the flat trough.

[0019] Technical effect: The above-mentioned configuration in this solution facilitates the continued forward conveying of the hoop in the feeding trough with the welded surface facing upward and the front end in front.

[0020] Preferably, as an improvement, the stepped screening section includes a first-stage feeding channel and a second-stage screening channel arranged in a stepped manner from high to low in space. The end of the first-stage feeding channel is unobstructed. The second-stage screening channel is provided with a first screening channel and a second feeding channel along the conveying direction of the hoop seat. The first screening channel is located below the first-stage feeding channel.

[0021] Preferably, as an improvement, the width w of the first feeding trough and the second feeding trough is smaller than the width D of the first end of the hoop, but larger than the width d of the last end of the hoop; the width W of the first screening trough is larger than the width D of the first end of the hoop; and the length s of the first screening trough is smaller than the length L of the hoop.

[0022] Beneficial Effects: This solution, with the aforementioned setup, facilitates the removal of hoop seats with the tail end facing forward. Specifically, during the operation of the feeding fixture in this solution, if the hoop seat conveyed by the vibratory feeder has its tail end facing forward, it will fall into the second-stage screening trough under gravity when it reaches the end of the first-stage feeding trough. At this point, because the length s of the first screening trough in the second-stage screening trough is less than the length L of the hoop seat, the tail end of the hoop seat will fall into the second feeding trough area. However, because the width w of the second feeding trough is greater than the width d of the tail end, and the width W of the first screening trough is greater than the width D of the head end of the hoop seat, the hoop seat will fall back to the vibratory feeder. Conversely, if the head end of the hoop seat is facing forward, when it falls into the second-stage screening trough under gravity, because the width w of the second feeding trough is less than the width D of the head end of the hoop seat, the head end of the hoop seat will be caught firmly upon contact with the second feeding trough and continue to be conveyed forward.

[0023] In other words, the "tail-to-front" rejection structure obtained by combining the "first-stage feeding trough, first screening trough, and second feeding trough" in this scheme provides a larger drop space for the tail-to-front hoop. Specifically, the first screening trough and part of the second feeding trough are drop spaces for the tail-to-front hoop. For the head-to-front hoop, its drop space is only the first screening trough. However, the length s of the first screening trough is less than the length L of the hoop, so that after falling from the first-stage feeding trough and contacting the second feeding trough, it will continue to be conveyed forward, thereby achieving screening of the hoop's front and rear positions during material conveying.

[0024] Preferably, as an improvement, the second-stage screening channel is further provided with a third discharge channel, and a third-stage screening channel is provided below the third discharge channel. The third-stage screening channel is provided with a fourth screening channel and a fifth feeding channel along the conveying direction of the hoop seat. The fourth screening channel is located below the third discharge channel, and the fifth feeding channel extends to connect to the loading channel. The width W of the third discharge channel and the fourth screening channel is greater than the width D of the first end of the hoop seat. The length S of the third discharge channel is greater than the length L of the hoop seat, and the length s of the fourth screening channel is less than the length L of the hoop seat. The width w of the fifth feeding channel is less than the width D of the first end of the hoop seat, but greater than the width d of the last end of the hoop seat.

[0025] Beneficial effects: The above settings in this solution facilitate further screening of hoop seats with the tail end at the front or those that are misaligned in the conveyor position, thereby further improving the accuracy of material feeding.

[0026] Preferably, as an improvement, the first screening tank and the second feeding tank have a chamfered transition, and the fourth screening tank and the fifth feeding tank have a chamfered transition.

[0027] Beneficial effects: The above-mentioned setup in this solution facilitates further improvement in the drop rate of the hoop seat with the tail end at the front, ensuring 100% rejection of hoop seats with incorrect positioning, thereby ensuring the accuracy of the hoop seat loading position. Attached Figure Description

[0028] Figure 1 The figures above show a perspective view of the hoop structure in an embodiment of this utility model (top) and a schematic diagram of the hoop dimensions (bottom).

[0029] Figure 2 This is a top view of the laser welding feeding fixture for the hoop in this embodiment of the present invention.

[0030] Figure 3 This is a perspective view of the vibratory plate in an embodiment of this utility model.

[0031] Figure 4 This is a schematic diagram of the structure of the stepped screening section in this embodiment of the present invention, which only includes the first-stage feeding channel and the second-stage screening channel.

[0032] Figure 5 This is a schematic diagram of the structure when the tiered screening section in this embodiment of the present invention also includes a third-level screening channel.

[0033] Figure 6 This is a top view of the ladder screening section in this embodiment of the present invention after all the structures are placed at the same level.

[0034] Figure 7 This is a schematic diagram of the baffle screening section in an embodiment of the present invention.

[0035] Figure 8 The diagram shows the conveying state of the hoop in different positions in the baffle screening section of this utility model embodiment (the left diagram shows the welding surface facing down, and the arrow indicates that it will fall; the right diagram shows the welding surface facing up).

[0036] Figure 9 This is a schematic diagram of the narrow channel screening section in an embodiment of the present invention.

[0037] Figure 10 The diagram shows the angle between the forward path of the vibratory disc along the narrow screening section and the inner wall of the disc (left image) and the conveying state diagram of the hoop in different positions (middle image shows the welding surface facing up; right image shows the welding surface facing down, and the arrow indicates that it will fall off).

[0038] Figure 11 This is a cross-sectional view of the feeding trough in an embodiment of the present invention.

[0039] The reference numerals in the accompanying drawings include: hoop 1, head end 11, tail end 12, weld 13, inclined groove 21, flat groove 22, vibrating plate 3, forward path 31, inner wall of the plate 32, baffle plate 4, narrow channel screening section 5, stepped screening section 6, first feeding channel 61, first screening channel 71, second feeding channel 72, third unloading channel 73, fourth screening channel 74, and fifth feeding channel 75. Detailed Implementation

[0040] The hoop structure for material loading in this scheme is as follows: Figure 1 As shown, it includes a head end and a tail end, with the head end being wider than the tail end; the side where the hoop weld is located is the welding surface, and the opposite side is the back surface, which is narrower than the welding surface. The following detailed description of specific embodiments further illustrates this:

[0041] In this scheme, the hoop is as follows: Figure 1 As shown, the side where the weld 13 of the hoop is located is the welding surface, and the opposite side is the back side. The back side of the hoop 1 is narrower than the welding surface. The width D of the hoop's head end is greater than the width d of the hoop's tail end.

[0042] Example

[0043] This solution provides a laser welding fixture for clamps, as shown in the attached figure. Figures 2-11 As shown: It includes a vibratory feeder 3 and a feeding trough. The feeding trough includes an inclined trough 21 and a flat trough 22. A vibrator is provided below the flat trough 22 to facilitate the continued forward conveying of the hoop 1 in the feeding trough.

[0044] The vibratory plate 3 includes a plate body and a vibrator. A forward channel 31 is spirally arranged on the inner wall 32 of the plate body. The forward channel 31 is provided with a flat forward channel section, a baffle screening section and a narrow channel screening section 5 in sequence along the conveying direction. A stepped screening section 6 is provided at the end of the forward channel 31 where it connects with the feeding trough.

[0045] In one embodiment, such as Figure 4 As shown, the stepped screening section 6 includes a first-level feeding channel 61 and a second-level screening channel arranged in a stepped manner from high to low in space. The end of the first-level feeding channel 61 is unobstructed. The second-level screening channel is provided with a first screening groove 71 and a second feeding groove 72 along the conveying direction of the hoop 1. The first screening groove 71 is located below the first-level feeding channel 61.

[0046] Among them, the width w of the first feeding channel 61 and the second feeding channel 72 is smaller than the width D of the first end 11 of the hoop, but larger than the width d of the tail end 12 of the hoop; the width W of the first screening channel 71 is larger than the width D of the first end 11 of the hoop; the length s of the first screening channel 71 is smaller than the length L of the hoop 1.

[0047] In other embodiments, such as Figure 5As shown, the second-stage screening channel is also provided with a third discharge channel 73, and a third-stage screening channel is provided below the third discharge channel 73. The third-stage screening channel is provided with a fourth screening channel 74 and a fifth feeding channel 75 along the conveying direction of the hoop 1. The fourth screening channel 74 is located below the third discharge channel 73, and the fifth feeding channel 75 extends to connect to the feeding channel. The width W of the third discharge channel 73 and the fourth screening channel 74 is greater than the width D of the hoop 1 head end 11. The length S of the third discharge channel 73 is greater than the length L of the hoop 1. The length s of the fourth screening channel 74 is less than the length L of the hoop 1. The width w of the fifth feeding channel 75 is less than the width D of the hoop 1 head end 11, but greater than the width d of the hoop tail end 12.

[0048] like Figure 6 As shown, each groove in the tiered screening section 6 is a strip groove, and the relationship between its dimensions and the dimensions of the hoop is as follows:

[0049] Regarding width:

[0050] The width W of the first screening trough 71, the third unloading trough 73 and the fourth screening trough 74 is greater than the width D of the head end of the hoop seat. The width w of the first feeding trough 61, the second feeding trough 72 and the fifth feeding trough 75 is greater than the width d of the tail end of the hoop seat.

[0051] In terms of length:

[0052] The length S of the third unloading trough 73 is greater than the length L of the hoop seat, which is greater than the lengths s of the first screening trough 71 and the fourth screening trough 74.

[0053] This solution does not impose any requirements on the width of the first-stage feeding trough 61, the second feeding trough 72, and the fifth feeding trough 75. They can be greater than or less than the length L of the hoop seat, and both can ensure smooth feeding of the tiered screening section 6 to the hoop seat.

[0054] Furthermore, those skilled in the art should understand that although this solution uses the same dimension mark to define the dimensions of multiple structures (e.g., using "W" to refer to the width of the first screening tank 71, the third unloading tank 73, and the fourth screening tank 74), it is intended to illustrate that the dimensions of these structures are all limited to a certain range (e.g., the width W of the first screening tank 71, the third unloading tank 73, and the fourth screening tank 74 is greater than the width D of the hoop head), not that their dimensions must be equal in length (e.g., the widths of the first screening tank 71, the third unloading tank 73, and the fourth screening tank 74 may not be equal in actual production, but they are all limited to being greater than the width D of the hoop head). The same applies to the limitation of the dimensions of other structures sharing the same dimension mark in this document; it does not indicate equal length, but rather that the dimensions of structures using the same dimension mark are limited to the same range for easier understanding, and they may also be of unequal length in design and production.

[0055] like Figure 6As shown, there is a chamfered transition between the first screening tank 71 and the second feeding tank 72, and a chamfered transition between the fourth screening tank 74 and the fifth feeding tank 75.

[0056] like Figure 7 As shown, a baffle 4 is fixed to the inner wall 32 of the disc in the baffle screening section. Along the conveying direction of the clamp 1, the gap between the baffle 4 and the inner wall 32 of the disc gradually increases, causing the forward path 31 of the baffle screening section to gradually narrow along the transmission direction of the clamp 1. The angle between the forward path 31 of the baffle screening section and the inner wall 32 of the disc is less than 90°. Figure 8 As shown, when hoop 1 is conveyed to the baffle screening section, the baffle 4 stops the hoop 1 with the welded surface facing down (see details). Figure 8 In the left-middle diagram, the downward arrow indicates that hoop 1 will fall off at this point. Hoop 1, with its welded surface facing upwards, can be tilted and conveyed through the baffle screening section in the inclined forward path 31 under the action of the vibrator (see details). Figure 8 (Right image in the middle)

[0057] like Figure 9 As shown, the forward passage 31 of the narrow passage screening section 5 is narrower than the other forward passages 31, and the angle between the forward passage 31 of the narrow passage screening section 5 and the inner wall 32 of the disc is less than 90°.

[0058] like Figure 10 As shown, the angle between the advancing track 31 and the inner wall 32 of the disc gradually decreases in the flat advancing track section, the baffle screening section, and the narrow track screening section 5, i.e., angle α > angle β > angle γ in the figure. This facilitates the improvement of the conveying stability of the hoop 1 and ensures the feeding volume. Specifically, the number of hoop 1s conveyed in the flat advancing track section is relatively large, but the number of hoop 1s in the conveying gradually decreases with each screening stage. In order to ensure that the feeding volume meets the hoop 1 requirements of the laser welding station, the conveying stability of the hoop 1 during and after screening is particularly important. Therefore, this solution limits the gradually decreasing angle, and the hoop 1 is conveyed with its back side against the angle under the action of the vibrator. In particular, the angle and curvature of the advancing track 31 and the inner wall 32 of the disc in the narrow track screening section 5 are designed to match the curvature of the back side of the hoop, which helps to improve the conveying stability of the hoop 1 with the correct position while screening, and ensures the feeding volume.

[0059] The specific implementation process is as follows:

[0060] Place the hoop 1 to be laser welded into the vibratory plate 3, turn on the vibrator, and the hoop 1 enters the horizontal advance section in a random position under the action of the vibrator.

[0061] First, the hoop 1 enters the forward path 31 under the action of the vibrator and is conveyed upward along the forward path 31. When the hoop 1 is conveyed to the baffle screening section, the baffle 4 stops the hoop 1 with the welded surface facing down, specifically as follows: Figure 8As shown, the conveying of clamp 1 is more stable when the back of clamp 1 is against the forward path 31 (i.e., the welded surface is facing upwards); however, when clamp 1 is conveyed with the welded surface against the forward path 31 (i.e., the welded surface is facing downwards), it will be blocked from moving when it reaches the end of the baffle 4 due to the narrowing of the forward path 31, causing the clamp 1 to become unstable. This process filters the conveying position of clamp 1. Furthermore, those skilled in the art should know that the conveying positions of clamps in the forward path 31 are varied. Figure 8 This is just an example to illustrate the situation and principle of the baffle 4 blocking the downward-facing hoop 1. Other hoop 1s with incorrect positions will also be affected by the baffle 4 and the vibrator during the transmission process, blocking the unstable hoop 1.

[0062] Then, when hoop 1 is driven to the narrow screening section 5, hoop 1 with incorrect positioning (including tilting, flipping, and a small number of hoop 1 with the welded surface facing down) is further removed, and hoop 1 with the welded surface facing up is retained (see reference). Figure 10 (Middle and right images).

[0063] Finally, when hoop 1 is driven to the stepped screening section 6, the hoop 1 with the tail end 12 at the front will be removed. Specifically, when the hoop 1 with the tail end 12 at the front is conveyed to the end of the first feeding trough 61, it will fall into the second screening trough under the action of gravity. At this time, because the length s of the first screening trough 71 in the second screening trough is less than the length L of the hoop 1, the tail end 12 of the hoop will fall into the area of ​​the second feeding trough 72. However, because the width w of the second feeding trough 72 is greater than the width d of the tail end 12 of the hoop, and the width W of the first screening trough 71 is greater than the width D of the head end 11 of the hoop, the hoop 1 will fall back to the vibrating plate 3. When the hoop 1 with the head end 11 at the front falls into the second screening trough under the action of gravity, because the width w of the second feeding trough 72 is less than the width D of the head end 11 of the hoop, the head end 11 of the hoop will be steadily caught after falling into contact with the second feeding trough 72 and will continue to be conveyed forward. In other words, the "tail end of the hoop facing forward" rejection structure obtained by combining the "first-stage feeding trough 61, first screening trough 71, and second feeding trough 72" in this scheme provides a larger drop space for the hoop 1 with the tail end 12 facing forward. Specifically, the first screening trough 71 and part of the second feeding trough 72 are drop spaces for the hoop 1 with the tail end 12 facing forward. However, for the hoop 1 with the head end 11 facing forward, the drop space is only the first screening trough 71. However, the length s of the first screening trough 71 is less than the length L of the hoop 1, so that after falling from the first-stage feeding trough 61 and contacting the second feeding trough 72, it is continued to be conveyed forward, thereby achieving the screening of the hoop 1's conveying position.

[0064] The further designed third-level screening channel can form a second "hoop tail end in front" rejection structure with the third unloading channel 73, which can further reject hoop 1 with incorrect position, and ensure that the hoop 1 entering the laser welding station is in a uniform position.

[0065] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A laser welding fixture for clamps, characterized in that: It includes a vibratory feeder and a feeding trough; the vibratory feeder includes a disc body and a vibrator, and a forward channel is spirally arranged on the inner wall of the disc body. The forward channel is provided with a flat forward channel section, a baffle screening section and a narrow channel screening section in sequence along the conveying direction. A stepped screening section is provided at the end of the forward channel where it connects with the feeding trough.

2. The laser welding feeding fixture for the hoop seat according to claim 1, characterized in that: The inner wall of the disc in the baffle screening section is fixed with baffles. Along the conveying direction of the hoop, the gap between the baffles and the inner wall of the disc gradually increases, and the forward path of the baffle screening section gradually narrows along the transmission direction of the hoop.

3. The laser welding feeding fixture for the hoop seat according to claim 2, characterized in that: The angle between the forward path of the baffle screening section and the inner wall of the disc is less than 90°.

4. The laser welding feeding fixture for the hoop seat according to claim 3, characterized in that: The narrow channel screening section has a narrower forward channel than other forward channels, and the angle between the forward channel of the narrow channel screening section and the inner wall of the disc is less than 90°.

5. The laser welding feeding fixture for the hoop seat according to claim 4, characterized in that: In the flat forward passage section, the baffle screening section, and the narrow passage screening section, the angle between the forward passage and the inner wall of the disc gradually decreases.

6. The laser welding feeding fixture for the hoop seat according to claim 5, characterized in that: The feeding trough includes an inclined trough and a flat trough, and a vibrator is provided below the flat trough.

7. The laser welding feeding fixture for the hoop seat according to claim 6, characterized in that: The stepped screening section includes a first-level feeding channel and a second-level screening channel arranged in a stepped manner from high to low in space. The end of the first-level feeding channel is unobstructed. The second-level screening channel is provided with a first screening channel and a second feeding channel along the conveying direction of the hoop seat. The first screening channel is located below the first-level feeding channel.

8. The laser welding feeding fixture for the hoop seat according to claim 7, characterized in that: The width w of the first feeding trough and the second feeding trough is smaller than the width D of the first end of the hoop, but larger than the width d of the last end of the hoop; the width W of the first screening trough is larger than the width D of the first end of the hoop; the length s of the first screening trough is smaller than the length L of the hoop.

9. The laser welding feeding fixture for the hoop seat according to claim 8, characterized in that: The second-stage screening channel is also provided with a third discharge channel. Below the third discharge channel, there is also a third-stage screening channel. The third-stage screening channel is provided with a fourth screening channel and a fifth feeding channel along the conveying direction of the hoop. The fourth screening channel is located below the third discharge channel, and the fifth feeding channel extends to connect to the loading channel. The width W of the third discharge channel and the fourth screening channel is greater than the width D of the first end of the hoop. The length S of the third discharge channel is greater than the length L of the hoop. The length s of the fourth screening channel is less than the length L of the hoop. The width w of the fifth feeding channel is less than the width D of the first end of the hoop, but greater than the width d of the last end of the hoop.

10. The laser welding feeding fixture for the hoop seat according to claim 9, characterized in that: The first screening tank and the second feeding tank have a chamfered transition, and the fourth screening tank and the fifth feeding tank have a chamfered transition.

Images