Bushing orientation and attitude feeding device
Patent Information
- Application Number
- CN202611033426.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2026-07-13
- Publication Date
- 2026-10-23
- Estimated Expiration
- 2046-07-13
AI Technical Summary
[0004]为解决反向轴套进入加工工位，造成加工报废和原料浪费的问题，本发明提供了一种轴套定向姿态送料装置，包括：
[0024]通过挡料组件的转动轮带动多个均匀间隔连接的挡料齿运动，使多个挡料齿依次穿过限位侧板上的避让口延伸至输送通道内，挡料齿在输送通道内的区域形成挡料区域。当轴套的敞口端朝向挡料组件时，挡料齿伸入敞口内随转动轮旋转带动轴套通过挡料区域，实现正向工件的正常通行；当轴套的封闭端朝向挡料组件时，两个挡料齿分别抵接轴套的外周壁和外底壁将其限位在挡料区域，实现反向工件的自动拦截。从而依靠机械结构自动判别轴套朝向，实时对来料姿态做二次筛查，弥补前端理料机构理料不彻底的问题，最终降低反向轴套进入加工工位的几率，减少工件加工报废和原料浪费，减少无效工件占用机床加工时长，提高整条产线的生产效率与运转节奏。
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Figure CN122519745B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of cross shaft bushing technology, and more specifically, to a bushing orientation feeding device. Background Technology
[0002] Bushings are cylindrical components that accompany bearing assemblies. For bearings mounted on cross-shaped shaft journals, one end of the bushing has a pre-drilled assembly opening, while the other end is a solid, fully closed end face. Mass production requires multiple automated processing steps, including end face turning, positioning drilling, sealing groove precision machining, and final press-fitting. Currently, the industry commonly uses continuous batch production lines. Bushing production batches are large, and the production line operates 24 / 7. The quality control of the workpiece's incoming orientation directly impacts product yield and the normal production rhythm of the assembly line.
[0003] In existing production processes, a material sorting and orientation mechanism is installed before the bushings are fed into the main conveyor line. This mechanism typically uses the difference in gravity at both ends of the bushing to pre-correct the workpiece orientation, facilitating subsequent tooling. However, in actual production, issues such as workpiece dimensional tolerances, feeding vibrations, and minor workpiece collisions and deformations prevent the existing orientation equipment from achieving 100% accurate sorting. Occasionally, a few reversed bushings pass through and are transported to the processing station. These reversed workpieces cannot be matched to the tooling for positioning and become scrap after machining, resulting in wasted raw materials, increased machine time, and reduced overall production line efficiency. Summary of the Invention
[0004] To address the problem of reverse-entry bushings causing machining scrap and material waste, this invention provides a bushing orientation feeding device, comprising:
[0005] frame;
[0006] A conveying assembly is connected to the frame. The conveying assembly includes two limiting side plates and a bottom plate. The two limiting side plates are respectively connected to opposite sides of the bottom plate. The two limiting side plates and the bottom plate together form a conveying channel. The inlet to outlet of the conveying channel slopes downward.
[0007] The material blocking assembly includes a rotating wheel and material blocking teeth; the rotating wheel is rotatably mounted on the frame; the rotating wheel is located on the side of one of the limiting side plates away from the other limiting side plate; a plurality of material blocking teeth are evenly spaced and connected to the periphery of the rotating wheel; an clearance opening is provided on the limiting side plate near the material blocking assembly; during the rotation of the rotating wheel, the plurality of material blocking teeth sequentially pass through the clearance opening and extend into the conveying channel; the area covered by the rotating material blocking teeth in the conveying channel forms a material blocking area;
[0008] Wherein, the sum of the axial length of the bushing and the longest dimension of the stop tooth extending into the conveying channel is greater than the width of the conveying channel;
[0009] The longest dimension of the stop tooth extending into the conveying channel is less than the difference between the width of the conveying channel and the thickness of the bottom wall of the bushing;
[0010] When the open end of the bushing in the conveying channel faces the baffle assembly, the baffle teeth extend into the open, and the baffle assembly rotates to allow the bushing to pass through the baffle area;
[0011] When the closed end of the bushing in the conveying channel faces the material blocking assembly, the two material blocking teeth abut against the outer peripheral wall and the outer bottom wall of the bushing respectively, limiting the bushing to the material blocking area.
[0012] Optionally, the rotation axis of the rotating wheel is perpendicular to the feeding direction of the conveying channel; the projection of the baffle assembly along the width direction of the conveying channel coincides with the movement trajectory of the central axis of the bushing within the conveying channel.
[0013] Optionally, when the end face of the closed end of the bushing rolls in contact with the limiting side plate away from the rotating wheel, the movement trajectory of the end face of the open end of the bushing forms a reference edge surface;
[0014] When both of the stop teeth intersect the reference edge surface at the same time, the distance between the two intersection points is X, the inner diameter of the bushing is A, and the circumferential wall thickness of the bushing is B.
[0015] X min <A+2B;X min >B;X max <A+B; where X min Let X be the minimum value of X; max Let X be the maximum value.
[0016] Optionally, X max >B+A / 2.
[0017] Optionally, a flexible part is provided on the limiting side plate near the rotating wheel; the flexible part is located in the conveying channel and on the feeding side of the blocking area, and is used to decelerate and correct the posture of the bushing before it enters the blocking area, so that the angle between the open end of the bushing and the feeding direction is obtuse.
[0018] Optionally, the flexible part includes a plurality of spaced elastic sheets; the plurality of elastic sheets are respectively connected to the limiting side plate near the rotating wheel.
[0019] Optionally, the size of the plurality of elastic sheets increases sequentially along the feeding direction of the conveying assembly.
[0020] Optionally, the base plate has a material discharge hole located in the material blocking area; a movable baffle is provided at the material discharge hole to block the material discharge hole; and a receiving frame is provided below the material discharge hole.
[0021] Optionally, a driving unit is provided between the baffle and the base plate, and the driving unit is driven to drive the baffle to perform linear reciprocating motion along the surface of the base plate to realize the switching between blocking and opening of the material discharge hole.
[0022] Optionally, a position detection sensor is also provided in the material blocking area, and the position detection sensor is electrically connected to the drive unit; when the position detection sensor detects that the reverse bushing is limited in the material blocking area by the material blocking teeth, the drive unit is triggered to automatically open the discharge hole to complete the workpiece return.
[0023] To address the problem of reverse-entry bushings causing machining scrap and material waste, this invention offers the following advantages:
[0024] The rotating wheel of the baffle assembly drives multiple evenly spaced baffle teeth to move, causing them to sequentially pass through the clearance openings on the limiting side plate and extend into the conveying channel. The baffle teeth form a baffle zone within the conveying channel. When the open end of the bushing faces the baffle assembly, the baffle teeth extend into the opening and rotate with the rotating wheel, driving the bushing through the baffle zone, allowing normal passage of forward-facing workpieces. When the closed end of the bushing faces the baffle assembly, two baffle teeth abut against the outer peripheral wall and outer bottom wall of the bushing, respectively, limiting it within the baffle zone and automatically intercepting reverse-facing workpieces. This automatic determination of bushing orientation via mechanical structure allows for real-time secondary screening of incoming material posture, compensating for incomplete material handling by the front-end material handling mechanism. Ultimately, this reduces the probability of reverse-facing bushings entering the processing station, minimizing workpiece scrap and material waste, reducing machine tool processing time occupied by invalid workpieces, and improving the overall production line's efficiency and operational rhythm. Attached Figure Description
[0025] Figure 1 This is a schematic diagram of a bushing orientation feeding device according to one embodiment;
[0026] Figure 2 for Figure 1 A schematic diagram of the tilting structure of the central bushing;
[0027] Figure 3 for Figure 2 A schematic diagram of the central bushing after it has been corrected by the flexible part;
[0028] Figure 4 for Figure 3 A schematic diagram of the structure in which the intermediate guide tooth extends into the bushing;
[0029] Figure 5 for Figure 1 A schematic diagram of the structure after the central bushing reverses and is blocked by the stop teeth;
[0030] Figure 6 for Figure 5 A schematic diagram of the central shaft sleeve orientation feeding device from another perspective.
[0031] Reference numerals: 10, conveying assembly; 11, limiting side plate; 12, base plate; 20, material blocking assembly; 21, rotating wheel; 22, material blocking tooth; 30, flexible part; 31, elastic sheet; 40, bushing; 50, feeding direction. Detailed Implementation
[0032] The present disclosure will now be discussed with reference to several exemplary embodiments. It should be understood that these embodiments are discussed only to enable those skilled in the art to better understand and thus implement the present disclosure, and are not intended to imply any limitation on the scope of the disclosure.
[0033] As used herein, the term "comprising" and its variants are to be construed as open-ended terms meaning "including but not limited to". The term "based on" is to be construed as "based at least in part on". The terms "one embodiment" and "an embodiment" are to be construed as "at least one embodiment". The term "another embodiment" is to be construed as "at least one other embodiment". The orientation or positional relations indicated by the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "vertical", "horizontal", "transverse", "longitudinal" and the like are based on the orientation or positional relations shown in the accompanying drawings. These terms are mainly used to better describe the present application and its embodiments, and are not intended to limit that the indicated device, element or component must have a specific orientation, or be constructed and operated in a specific orientation. Moreover, some of the above terms may indicate other meanings besides indicating orientation or positional relations, for example, the term "upper" may also be used to indicate a certain attachment or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in the present application can be understood according to specific situations. In addition, the terms "mounted", "arranged", "provided with", "connected", "coupled" are to be construed broadly. For example, they may be fixed connection, detachable connection, or integral structure; may be mechanical connection, or electrical connection; may be direct connection, or indirect connection via an intermediate medium, or internal communication between two devices, elements or components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations. In addition, the terms "first", "second" and the like are mainly used to distinguish different devices, elements or components (the specific types and structures may be the same or different), and are not intended to indicate or imply the relative importance and quantity of the indicated devices, elements or components. Unless otherwise specified, the meaning of "a plurality of" is two or more.
[0034] The shaft sleeve of the present application is a matching cylindrical component of a cross shaft bearing assembly, which is open at one end and closed at the other end. In the mass production stage of the product, multiple automated processing procedures are required in sequence, and the tooling fixtures at each subsequent processing station are designed according to the forward state of the shaft sleeve. The production volume of shaft sleeves in a single batch is large, and the production line operates non-stop around the clock. The control quality of the incoming orientation of workpieces directly affects the product yield and the normal production rhythm of the assembly line. In the existing production scheme, a material sorting and orientation mechanism is installed before the shaft sleeve is fed into the main conveyor line to correct the placement direction of the workpieces in advance. However, in the actual production process, due to the interference of problems such as workpiece dimensional tolerance, feeding vibration, and collision deformation of a small number of workpieces, the existing orientation equipment cannot achieve 100% complete sorting. Occasionally, a small number of shaft sleeves with the closed end facing the processing station will pass through and be conveyed to the processing station, resulting in the reverse workpieces failing to match the tooling positioning, directly becoming waste products after being processed on the machine, causing waste of raw materials, occupying the machining time of the machine tool at the same time, and reducing the production efficiency of the entire production line.
[0035] Example 1:
[0036] This embodiment proposes a directional feeding device for bushing 40, such as... Figure 1 As shown, one end of the bushing 40 is open, and the other end is closed. Figure 1 As shown, the bushing 40 directional feeding device includes a frame, a conveying assembly 10, and a stop assembly 20.
[0037] The conveying assembly 10 is connected to the frame and includes two limiting side plates 11 and a base plate 12. The two limiting side plates 11 are respectively connected to opposite sides of the base plate 12. The two limiting side plates 11 and the base plate 12 together form a conveying channel. The inlet to outlet of the conveying channel slopes downward. The two limiting side plates 11, together with the base plate 12, form a regular channel, which can constrain the travel trajectory of the bushing 40 and prevent the bushing 40 from tipping over or deviating during the conveying process as much as possible, ensuring that the bushing 40 always moves forward in a stable posture, laying the foundation for subsequent posture recognition. The conveying channel slopes downward from the inlet to the outlet, and can automatically feed the material by relying on the gravity of the bushing 40 itself. The material flow is smooth and no additional pushing power is required.
[0038] like Figure 1 As shown, the material blocking assembly 20 includes a rotating wheel 21 and material blocking teeth 22. The rotating wheel 21 is rotatably mounted on the frame. The rotating wheel 21 is located on the side of one limiting side plate 11 away from the other limiting side plate 11. Multiple material blocking teeth 22 are evenly spaced and connected to the periphery of the rotating wheel 21. A clearance opening is provided on the limiting side plate 11 near the material blocking assembly 20. During the rotation of the rotating wheel 21, multiple material blocking teeth 22 sequentially pass through the clearance opening and extend into the conveying channel. The area covered by the rotating material blocking teeth 22 in the conveying channel forms a material blocking area. The rotating wheel 21 drives the material blocking teeth 22 to sequentially pass through the clearance opening and extend into the channel, forming a dynamic material blocking detection area. Relying on the mechanical structure to automatically determine the orientation of the bushing 40, no manual intervention is required throughout the process. It can perform secondary screening of the incoming material posture in real time, making up for the problem of incomplete material handling by the front-end material handling mechanism.
[0039] Specifically, the sum of the axial length of the bushing 40 and the longest dimension of the stop tooth 22 extending into the conveying channel is greater than the width of the conveying channel. In this way, the stop tooth 22 can firmly restrict the lateral movement of the bushing 40. When the stop tooth 22 acts on the bushing 40, the bushing 40 will not slip out from the sides of the channel, ensuring that the stop tooth 22 can stably contact the bushing 40, allowing the attitude recognition and interception actions to be effectively executed.
[0040] The longest dimension of the baffle tooth 22 extending into the conveying channel is less than the difference between the width of the conveying channel and the thickness of the bottom wall of the bushing 40; this ensures that the baffle tooth 22 can smoothly extend into the open end of the bushing 40, allowing the forward bushing 40 to pass normally; moreover, the baffle tooth 22 cannot penetrate the solid closed end, but can only fit against the outer wall of the closed end, creating structural conditions for intercepting the reverse bushing 40.
[0041] like Figure 3 and Figure 4 As shown, when the open end of the bushing 40 in the conveying channel faces the baffle assembly 20, the baffle teeth 22 extend into the open, and the baffle assembly 20 rotates to make the bushing 40 pass through the baffle area; the baffle teeth 22 extend into the open, and with the rotation of the rotating wheel 21, they drive the bushing 40 to pass smoothly through the inspection area. The qualified bushing 40 flows normally to the subsequent processing station without delaying the normal production process.
[0042] like Figure 5 and Figure 6 As shown, when the closed end of the bushing 40 in the conveying channel faces the stop assembly 20, the two stop teeth 22 abut against the outer peripheral wall and the outer bottom wall of the bushing 40 respectively, limiting the bushing 40 in the stop area. The stop teeth 22 abut against the outer wall and the closed bottom wall of the bushing 40, locking the reverse bushing 40 in the stop area, preventing the reverse bushing 40 from entering the processing station. This avoids scrapping the bushing 40 during processing, reduces material waste, and prevents the reverse bushing 40 from occupying the machine tool processing time, ensuring the production efficiency and operating rhythm of the entire production line.
[0043] Furthermore, the rotation axis of the rotating wheel 21 is perpendicular to the feeding direction 50 of the conveying channel; the projection of the baffle assembly 20 along the width direction of the conveying channel coincides with the movement trajectory of the central axis of the bushing 40 within the conveying channel. This results in the rotating wheel 21 occupying a smaller proportion of the end face of the bushing 40 and a larger proportion of the opening in the projection area of the open end of the bushing 40, thereby reducing the risk of the baffle teeth 22 scraping the end face of the bushing 40 and reducing the structural design difficulty of the baffle assembly 20. This ensures that the forward bushing 40 passes smoothly through the baffle area without disrupting the normal feeding rhythm.
[0044] Furthermore, if the position of the stop tooth 22 in contact with the outer peripheral wall of the bushing 40 is close to the lower part of the axis of the bushing 40, the abutting force of the stop tooth 22 on the bushing 40 is inclined upward, which may cause the bushing 40 to bounce. In contrast, in this embodiment, the contact position between the stop tooth 22 and the outer peripheral wall of the bushing 40 is centered, which can reduce the risk of the bushing 40 bouncing when passing through the stop area and reduce the appearance damage to the bushing 40.
[0045] Furthermore, when the end face of the closed end of the bushing 40 rolls against the limiting side plate 11 away from the rotating wheel 21, the movement trajectory of the end face of the open end of the bushing 40 forms a reference edge surface.
[0046] When both stop teeth 22 intersect the reference edge surface simultaneously, the distance between the two intersection points is X, the inner diameter of the bushing 40 is A, and the circumferential wall thickness of the bushing 40 is B; when the projection area of the stop assembly 20 on the end face of the bushing 40 coincides with the axis of the bushing 40, the size design of the stop assembly 20 can satisfy the following formula:
[0047] X min <A+2B;X min >B;X max <A+B; where X min X is the minimum value of X; max X is the maximum value. Under such dimensional constraints, when the two stop teeth 22 operate to the position where X is the minimum, the two stop teeth 22 in the stop area are less likely to clamp and jam the cylinder wall of the bushing 40. Furthermore, the size design of the stop assembly 20 has a wide range of dimensions, reducing the risk of jamming caused by design errors. This prevents the stop teeth 22 from jamming at the cylinder wall of the forward bushing 40, avoiding the forward bushing 40 from being stuck in the conveying channel. The forward bushing 40 can pass smoothly through the stop area without delaying the normal production cycle. Moreover, when the bushing 40 reverses direction, this dimensional rule allows the stop teeth 22 to complete the interception action, preventing the reverse bushing 40 from passing through the stop area.
[0048] Furthermore, X max >B+A / 2. If both stop teeth 22 extend into the bushing 40 simultaneously, the narrow inner space of the bushing 40, coupled with workpiece dimensional tolerances, feeding vibrations, and minor impact deformation, can easily cause the stop teeth 22 to jam against the inner wall of the bushing 40, resulting in workpiece stagnation, blockage of the conveying channel, and forced production line shutdown. Under such dimensional constraints, only one stop tooth 22 can extend into the bushing 40, leaving sufficient clearance between the stop tooth 22 and the hole wall, allowing the bushing 40 to be smoothly conveyed forward with the rotating wheel 21. Moreover, compared to the requirement of two or more stop teeth 22 extending into the inner cavity to complete release, which necessitates additional supporting structures to ensure synchronous alignment and extension of the two stop teeth 22, resulting in a large amount of redundant design, the dimensional constraints of this embodiment simplify the structure of the stop assembly 20, reducing design redundancy.
[0049] Furthermore, such as Figure 2 As shown, a flexible part 30 is provided on the limiting side plate 11 near the rotating wheel 21; the flexible part 30 is located in the conveying channel and on the feeding side of the material blocking area, used to decelerate and correct the attitude of the bushing 40 before it enters the material blocking area, so that the open end of the bushing 40 faces an angle α with the feeding direction 50 that is obtuse (e.g., Figure 3(As shown). The conveying channel itself slopes downwards, and the bushing 40 slides down by its own weight, exhibiting a certain inertia during operation. The flexible part 30 is located on the feeding side of the material-stopping area, which can weaken the sliding inertia of the bushing 40 and prevent the bushing 40 from shifting or displacing when it contacts the material-stopping teeth 22 due to excessive speed or impact. This ensures that the material-stopping teeth 22 can accurately align with the end face of the bushing 40 to complete attitude judgment and action coordination. The angle α between the open end of the bushing 40 and the feeding direction 50 is an obtuse angle, allowing the bushing 40 to contact the material-stopping teeth 22 through its outer peripheral wall as much as possible during conveying. This minimizes the collision between the end face of the bushing 40 and the material-stopping teeth 22, allowing the material-stopping teeth 22 to extend more smoothly into the open area and reducing the possibility of the end face scraping against the material-stopping teeth 22 and causing jamming. This ensures that qualified bushings 40 pass smoothly through the material-stopping area without affecting normal production.
[0050] Furthermore, the flexible part 30 includes multiple spaced elastic plates 31; the multiple elastic plates 31 are respectively connected to the limiting side plate 11 near the rotating wheel 21. There are gaps between the split elastic plates 31, and each plate can independently avoid collisions. When the bushing 40 contacts the flexible part 30, only the contacted elastic plate 31 undergoes independent avoidance deformation, and the buffering force is gradually loaded with the number of contacting elastic plates 31, so there will be no sudden overall recoil force of the integral structure; moreover, the deceleration process is smooth, which can reduce the probability of the bushing 40 radially bouncing, axially shifting or even overturning due to impact rebound, and ensure that the bushing 40 has a more stable posture when entering the material detection area.
[0051] Furthermore, the dimensions of the multiple elastic plates 31 increase sequentially along the feeding direction 50 of the conveying assembly 10. The bushing 40 slides down using its own weight along the inclined channel, resulting in a high initial speed and large inertia. The smaller front end of the elastic plate 31 has a small contact area and applies weak resistance, preventing sudden obstruction of the bushing 40. As the bushing 40 moves forward, the size of the elastic plates 31 gradually increases, and the contact area and buffer resistance increase smoothly, gradually offsetting the sliding inertia. This avoids problems such as bouncing, misalignment, and slippage of the bushing 40 due to sudden stops.
[0052] Furthermore, the base plate 12 has a material discharge hole located in the material blocking area; a movable baffle is provided at the material discharge hole to block it; and a receiving frame is provided below the material discharge hole.
[0053] When the two retaining teeth 22 abut against the outer peripheral wall and the end face of the closed end of the bushing 40 respectively, the baffle moves to a position separated from the discharge hole, and the bushing 40 in the retaining area falls into the receiving frame through the discharge hole. Furthermore, the rejected reverse bushings 40 are uniformly collected in the receiving frame below, preventing them from scattering around the equipment. Workers can periodically re-inspect, rework, reuse, or scrap the bushings 40 in the receiving frame, simplifying the material management process and preventing the bushings 40 from scattering or being lost.
[0054] Furthermore, a drive unit is provided between the baffle and the base plate 12. The drive unit is connected to the baffle to drive the baffle to perform linear reciprocating motion along the surface of the base plate 12, realizing the switching between blocking and opening the material discharge hole. The baffle adopts a linear translational opening and closing method, with a fixed movement trajectory, no flipping, and no swaying. When the material discharge hole is normally blocked, the baffle and the base plate 12 are tightly fitted, and the plate surface remains intact and flat. The bushing 40 will not sink, bump, hook, or deviate when passing over it, ensuring the stability of the forward conveying trajectory of the bushing 40. When switching to the opening state, the linear motion is crisp, and the reverse bushing 40 can smoothly pass through the material discharge hole into the receiving frame, structurally preventing the bushing 40 from getting stuck at the material discharge hole opening.
[0055] Furthermore, a position detection sensor is installed within the material blocking area, electrically connected to the drive unit. When the position detection sensor detects that the reverse bushing 40 is limited within the material blocking area by the stop tooth 22, it triggers the drive unit to automatically open the discharge hole to complete the workpiece return. Relying on the sensor to monitor the working condition of the material blocking area in real time, no manual operation or baffle is required. When the reverse bushing 40 is limited by the stop tooth 22, the sensor automatically sends a signal to drive the mechanism to complete the material rejection; when qualified products pass normally, the mechanism maintains its original state. The entire process is fully automated, adapting to the unmanned operation requirements of the production line and reducing on-site manpower. Moreover, the sensor signal transmission response speed is fast, and it can be synchronized in real time with the rotation of the stop tooth 22 and the stationary state of the bushing 40. As soon as the reverse bushing 40 is limited, the baffle opens synchronously, and the reverse bushing 40 is quickly discharged from the discharge hole, preventing accumulation or blockage at critical workstations. It also maintains a stable production rhythm and reduces abnormal production line downtime.
[0056] Those skilled in the art will understand that the above embodiments are specific examples of implementing this disclosure, and in practical applications, various changes can be made in form and detail without departing from the scope of this disclosure.
Claims
1. A bushing orientation feeding device, wherein one end of the bushing is open and the other end is closed; characterized in that, The bushing orientation feeding device includes: frame; A conveying assembly is connected to the frame. The conveying assembly includes two limiting side plates and a bottom plate. The two limiting side plates are respectively connected to opposite sides of the bottom plate. The two limiting side plates and the bottom plate together form a conveying channel. The inlet to outlet of the conveying channel slopes downward. The material blocking assembly includes a rotating wheel and material blocking teeth; the rotating wheel is rotatably mounted on the frame; the rotating wheel is located on the side of one of the limiting side plates away from the other limiting side plate; a plurality of material blocking teeth are evenly spaced and connected to the periphery of the rotating wheel; an clearance opening is provided on the limiting side plate near the material blocking assembly; during the rotation of the rotating wheel, the plurality of material blocking teeth sequentially pass through the clearance opening and extend into the conveying channel; the area covered by the rotating material blocking teeth in the conveying channel forms a material blocking area; Wherein, the sum of the axial length of the bushing and the longest dimension of the stop tooth extending into the conveying channel is greater than the width of the conveying channel; The longest dimension of the stop tooth extending into the conveying channel is less than the difference between the width of the conveying channel and the thickness of the bottom wall of the bushing; When the open end of the bushing in the conveying channel faces the baffle assembly, the baffle teeth extend into the open, and the baffle assembly rotates to allow the bushing to pass through the baffle area; When the closed end of the bushing in the conveying channel faces the material blocking assembly, the two material blocking teeth abut against the outer peripheral wall and the outer bottom wall of the bushing respectively, limiting the bushing to the material blocking area; A flexible part is provided on the limiting side plate near the rotating wheel; the flexible part is located in the conveying channel and on the feeding side of the blocking area, and is used to decelerate and correct the posture of the bushing before it enters the blocking area, so that the open end of the bushing faces an obtuse angle with the feeding direction.
2. The bushing orientation feeding device according to claim 1, characterized in that, The rotation axis of the rotating wheel is perpendicular to the feeding direction of the conveying channel; the projection of the baffle assembly along the width direction of the conveying channel coincides with the movement trajectory of the central axis of the bushing within the conveying channel.
3. The bushing orientation feeding device according to claim 2, characterized in that, When the closed end face of the bushing rolls in contact with the limiting side plate away from the rotating wheel, the movement trajectory of the open end face of the bushing forms a reference edge surface. When both of the stop teeth intersect the reference edge surface at the same time, the distance between the two intersection points is X, the inner diameter of the bushing is A, and the circumferential wall thickness of the bushing is B. X min <A+2B;X min >B;X max <A+B; Among them, X min X is the minimum value of X; max Let X be the maximum value.
4. The bushing orientation feeding device according to claim 3, characterized in that, X max >B+A / 2。 5. The bushing orientation feeding device according to claim 3, characterized in that, The flexible part includes a plurality of spaced elastic sheets; the plurality of elastic sheets are respectively connected to the limiting side plate near the rotating wheel.
6. The bushing orientation feeding device according to claim 5, characterized in that, The dimensions of the plurality of elastic sheets increase sequentially along the feeding direction of the conveying assembly.
7. The bushing orientation feeding device according to claim 1, characterized in that, The base plate has a material discharge hole located in the material blocking area; a movable baffle is provided at the material discharge hole to block it; a material receiving frame is provided below the material discharge hole.
8. The bushing orientation feeding device according to claim 7, characterized in that, A driving unit is provided between the baffle and the base plate. The driving unit is driven to the baffle to drive the baffle to make linear reciprocating motion along the surface of the base plate, thereby realizing the switching between blocking and opening of the material discharge hole.
9. A bushing orientation feeding device according to claim 8, characterized in that, A position detection sensor is also provided in the material blocking area, and the position detection sensor is electrically connected to the drive unit; when the position detection sensor detects that the reverse bushing is limited in the material blocking area by the material blocking teeth, it triggers the drive unit to operate and automatically opens the discharge hole to complete the workpiece return.
Citation Information
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