Charging basket convenient to absorb

Abstract

The utility model discloses a material basket convenient for adsorption, which comprises a material frame, a positioning plate is arranged on one side of the material frame, a mounting groove is arranged on the positioning plate, a rubber gasket is mounted in the mounting groove, a cover plate is fixedly connected with the positioning plate, and a positioning groove is arranged on the positioning plate. The material basket has the beneficial effects that the adaptability and the operation stability between the material basket and the adsorption device are remarkably improved through the elastic rubber gasket embedded in the positioning plate. The rubber gasket adopts the combined design of the bottom block and the annular convex block, and utilizes the matching relation between the inner diameter and the outer diameter of the convex block and the adsorption disc to adaptively wrap the edge of the adsorption disc through elastic deformation when the adsorption disc is in contact, so that hard collision caused by traditional rigid contact is avoided, and a uniform sealing interface is formed through the annular convex surface; and the air leakage risk caused by vibration or alignment deviation is effectively reduced. Due to the clearance fit design of the rubber gaskets and the mounting grooves, the rubber gaskets are allowed to generate proper displacement when being pressed, and the stress concentration problem between the adsorption disc and the charging basket is further relieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of adsorbing material frame, specifically relates to a material basket convenient to adsorb. BACKGROUND

[0002] In the automatic production and material transfer process, the material basket is a key device for bearing and positioning workpieces, and often needs to cooperate with a mechanical arm adsorption device to realize efficient handling. In the prior art, the material basket often adopts a rigid positioning structure to realize butt joint with the adsorption disc, for example, a metal positioning plate or a clamping groove is arranged on the side wall of the material basket, and the position of the adsorption disc is constrained by physical limiting. However, such rigid contact mode is prone to hard collision between the positioning plate and the adsorption disc due to mechanical vibration or alignment deviation in frequent adsorption operation, and is prone to wear and deformation of the positioning structure after long-term use, thereby affecting the positioning accuracy, and even causing adsorption failure or workpiece falling off.

[0003] Therefore, the existing material basket faces technical bottlenecks such as insufficient adsorption stability, short maintenance period and limited compatibility in high-speed automation scenarios. SUMMARY

[0004] The utility model aims at providing a material basket convenient to adsorb to solve the technical problems of wear and deformation caused by mechanical collision and lack of buffer mentioned above.

[0005] To solve the above technical problems, the utility model provides a material basket convenient to adsorb, which comprises a material frame, a positioning plate is arranged on one side of the material frame, an installation groove is arranged on the positioning plate, a rubber gasket is installed in the installation groove, a cover plate is fixedly connected with the positioning plate, and a positioning groove is arranged on the positioning plate.

[0006] Further, a limiting hole is arranged at the upper end in the positioning groove, and a buffer pad is arranged on the top wall in the limiting hole.

[0007] Further, the thickness of the buffer pad is 2mm.

[0008] Further, the rubber gasket comprises a bottom block and a convex block, the convex block is annular, the inner diameter of the convex block is smaller than the inner diameter of the adsorption disc, and the outer diameter of the convex block is larger than the outer diameter of the adsorption disc.

[0009] Further, the outer diameter of the bottom block is larger than the outer diameter of the convex block, and the bottom block and the installation groove are gap-fitted.

[0010] Further, the positioning groove and the convex block are coaxially arranged.

[0011] The utility model discloses a beneficial effect is: a material basket convenient to adsorb compared with prior art, the material basket convenient to adsorb provided in the application, through the elastic rubber gasket of embedding in the positioning plate, the adaptability and operation stability between material basket and adsorption device are improved significantly. The combination design of bottom block and annular boss is adopted to rubber gasket, and the matching relationship of the inner diameter and outer diameter of boss and adsorption disc is utilized, and when the adsorption disc is contacted, the edge of adsorption disc is adaptively wrapped through elastic deformation, which not only avoids the hard collision of traditional rigid contact, but also forms a uniform sealing interface through the annular convex surface, effectively reduces the air leakage risk caused by vibration or alignment deviation. In addition, the clearance fit design of rubber gasket and mounting groove allows it to produce moderate displacement when being pressed, further relieving the stress concentration problem between adsorption disc and material basket, and the overall scheme solves the problems of wear and deformation, insufficient sealing and the like of traditional material basket caused by rigid structure through elastic contact effect, improves the automatic handling efficiency, reduces the equipment maintenance frequency and failure rate, and is suitable for stable operation scene of multi-specification adsorption disc. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a three-dimensional structure schematic view of adsorption disc and material frame cooperation.

[0013] Figure 2 It is a vertical section structure schematic view of adsorption disc.

[0014] Figure 3 It is a three-dimensional structure schematic view of positioning pin.

[0015] Figure 4 It is a three-dimensional structure schematic view of cover plate.

[0016] Figure 5 It is a three-dimensional structure schematic view of rubber gasket.

[0017] Figure 6 It is a three-dimensional structure schematic view of material frame.

[0018] Figure 7 It is a vertical section structure schematic view of material frame.

[0019] Wherein: 1, adsorption disc, 2, positioning pin, 21, air hole, 22, pressure sensor, 231, limit rod, 3, material frame, 4, positioning plate, 41, rubber gasket, 42, mounting groove, 43, cover plate, 5, positioning groove, 51, limit hole, 52, buffer pad, 6, bottom block, 7, boss, 8, limit block. DETAILED DESCRIPTION

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only one embodiment of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] To make the objectives, technical solutions and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and specific embodiments.

[0022] In the following description, references to "an embodiment," "an embodiment," "an example," "example," etc., indicate that the described embodiment or example may include a particular feature, structure, characteristic, property, element, or limitation, but not every embodiment or example necessarily includes that particular feature, structure, characteristic, property, element, or limitation. Furthermore, the repeated use of the phrase "an embodiment according to this application," while possibly referring to the same embodiment, does not necessarily refer to the same embodiment.

[0023] In this embodiment: as Figure 1 As shown, the vacuum hole in the middle of the adsorption plate 1 forms a stable negative pressure through the vent hole 21. A positioning pin 2 is coaxially arranged on the adsorption plate 1 with the vacuum hole, and the positioning pin 2 is fixedly connected to the adsorption plate 1. The end of the positioning pin 2 near the vacuum hole is hollow, and the hollow part of the positioning pin 2 has a vent hole 21 that communicates with the outside. Electromagnetic devices are arranged on the upper and lower sides of the other end of the positioning pin 2. A pressure sensor 22 is arranged in the middle of the positioning pin 2. The pressure sensor 22 adopts the Sensirion SDP800 series, which is existing technology and will not be described in detail. It is used to monitor the adsorption force in real time to ensure adsorption stability. One side of the material frame 3 is a positioning plate 4, which is connected to the adsorption plate 1 through a rubber gasket 41. The mounting groove 42 on the positioning plate 4 cooperates with the rubber gasket 41. The design of the rubber gasket 41 not only provides good sealing performance, but also plays a role in shock absorption, which helps to extend the service life of the adsorption plate 1 and related components.

[0024] A cover plate 43 is provided on the positioning plate 4. The cover plate 43 is fixed to the positioning plate 4 by screws. A positioning groove 5 is provided on the positioning plate 4 corresponding to the positioning pin 2. A limit hole 51 is provided in the positioning groove 5 corresponding to the electromagnet device. A buffer pad 52 is provided on the top wall of the limit hole 51. The thickness of the buffer pad 52 is 2mm±0.1mm. The stable negative pressure formed by the vacuum hole and the vent hole 21, together with the precise cooperation between the positioning pin 2 and the positioning groove 5, ensures the stability and accuracy of the material frame 3 in the adsorption process and effectively prevents slippage and displacement.

[0025] The electromagnet device includes a limiting rod 231, the electromagnet device controls the pop-up and retraction of the limiting rod 231, the electromagnet device is of SMC VQZ series, which is prior art and will not be described in detail, the limiting rod 231 keeps retracted under the action of magnetic force to avoid interfering with the normal adsorption positioning of the material frame 3, the electromagnet device can automatically control the pop-up and retraction of the limiting rod 231 without manual intervention, thereby improving the automation level of the system and reducing the operation complexity.

[0026] When the material frame 3 slips, lateral extrusion force is generated between the positioning pin 2 and the positioning groove 5, the detection value of the pressure sensor 22 suddenly rises, the electromagnet device is closed, the limiting rod 231 is inserted into the limiting hole 51 of the material frame 3, finally contacts the buffer pad 52 to form mechanical hard limiting to prevent the material frame 3 from further displacement; the pressure sensor 22 in the middle of the positioning pin 2 can monitor in real time, once the abnormality (such as the increase of lateral extrusion force caused by the slip of the material frame 3) is found, the electromagnet device is triggered to act immediately, thereby realizing fast response and mechanical hard limiting and improving the safety and reliability of the system.

[0027] After the adsorption is restored and stabilized, the electromagnet device is opened to pull back the limiting rod 231 to the retracted position;

[0028] The buffer pad 52 provides buffering to reduce the vibration of the material frame 3 during the limiting process, thereby avoiding the influence on the wafer material in the material frame 3.

[0029] The rubber gasket 41 includes a bottom block 6 and a convex block 7, the convex block 7 is in the form of a circular ring, the inner diameter of the convex block 7 is smaller than the inner diameter of the adsorption disc 1, the outer diameter of the convex block 7 is greater than the outer diameter of the adsorption disc 1, the bottom block 6 is in clearance fit with the mounting groove 42, the design of the bottom block 6 and the convex block 7 of the rubber gasket 41 and the coaxial arrangement of the positioning groove 5 and the convex block 7 make the connection between the positioning plate 4 and the adsorption disc 1 not only tight but also flexible, which is easy to install and adjust and is suitable for material frames 3 of different sizes and shapes.

[0030] The adsorption disc 1 is provided with a vacuum hole in the middle, the adsorption disc 1 is coaxially fixed with the positioning pin 2, the end of the positioning pin 2 close to the vacuum hole is in hollow structure, and a plurality of air permeable holes 21 are arranged in the side wall of the end of the positioning pin 2 close to the vacuum hole.

[0031] The middle upper end of the positioning pin 2 is provided with a pressure sensor 22, and the end of the positioning pin 2 away from the vacuum hole is vertically provided with an electromagnet device.

[0032] The plurality of air permeable holes 21 are arranged at intervals; the longitudinal section of the end of the positioning pin 2 away from the vacuum hole is in the form of a capsule, and the plurality of air permeable holes 21 are arranged at intervals, which not only improves the air permeation efficiency but also enhances the stability and durability of the structure.

[0033] A limiting block 8 is arranged around the vacuum hole on the adsorption disc 1, the limiting block 8 is arranged in a circumferential array, the limiting block 8 is arranged in intervals, the limiting block 8 forms a mechanical stop, limits the radial displacement of the material frame 3, and further enhances the stability and carrying capacity of the adsorption disc 1.

[0034] Workflow:

[0035] When the material frame 3 is placed on the adsorption disc 1, the negative pressure formed by the vacuum hole and the air hole 21 tightly adsorbs the material frame 3 on the adsorption disc 1. The cooperation of the positioning pin 2 and the positioning groove 5 further ensures the position accuracy of the material frame 3.

[0036] The pressure sensor 22 is located in the middle of the positioning pin 2, which is used to monitor the adsorption force in real time. Once the adsorption force is detected to decrease or the material frame 3 slips, the value of the pressure sensor 22 will quickly rise.

[0037] When the pressure sensor 22 detects an abnormality, the electromagnet device is closed, the limiting rod 231 is ejected after losing the magnetic force, and is inserted into the limiting hole 51 of the material frame 3, and contacts the buffer pad 52 to form a mechanical hard limit, preventing the material frame 3 from further displacement.

[0038] When the adsorption is restored to stability, the electromagnet device is restarted, the limiting rod 231 is pulled back to the retracted position, and the material frame 3 is again in a normal adsorption state.

[0039] The buffer pad 52 provides buffering during the limiting process, reduces the impact on the material frame 3, and protects the wafer material in the material frame 3 from being damaged.

[0040] The above description of the disclosed embodiments is that the skilled in the art can implement or use the utility model. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the utility model. Therefore, the utility model will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A material basket that facilitates adsorption, characterized in that: The device includes a material frame, a positioning plate on one side of the material frame, an installation groove on the positioning plate, a rubber gasket installed in the installation groove, a cover plate fixedly connected to the positioning plate, and a positioning groove on the positioning plate.

2. The material basket for easy adsorption according to claim 1, characterized in that: The upper end of the positioning groove is provided with a limiting hole, and the top wall of the limiting hole is provided with a buffer pad.

3. The material basket for easy adsorption according to claim 1, characterized in that: The thickness of the cushioning pad is 2mm.

4. The material basket for easy adsorption according to claim 1, characterized in that: The rubber pad includes a base and a protrusion. The protrusion is annular, with its inner diameter smaller than the inner diameter of the adsorption disk and its outer diameter larger than the outer diameter of the adsorption disk.

5. The material basket for easy adsorption according to claim 4, characterized in that: The outer diameter of the base block is larger than the outer diameter of the protrusion, and the base block and the mounting groove are fitted with a clearance.

6. The material basket for easy adsorption according to claim 4, characterized in that: The positioning groove and the protrusion are coaxially arranged.

Images