Resistor chip-mounting suction nozzle and chip-mounting head
By designing a soft-glue nozzle core with deformable properties and a buffer spring, the problem of the nozzle fitting the resistor surface is solved, flexible adaptation and reliable suction of various resistors are achieved, and the nozzle design cost is reduced.
Patent Information
- Application Number
- CN202422628826.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-29
- Publication Date
- 2025-10-17
- Estimated Expiration
- 2034-10-29
AI Technical Summary
Existing nozzles are difficult to fit tightly with the surface of the resistor, resulting in suction failure or dropout, and designing a dedicated nozzle for each resistor increases design and manufacturing costs.
A resistor chip nozzle is designed, which includes a soft rubber nozzle core. The soft rubber nozzle core has good deformation ability and can form a tight negative pressure on curved and flat components. The stability and flexibility are enhanced by a buffer spring, a limit cover and a fixing part.
The flexibility and reliability of the resistor patch nozzle are improved, which can adapt to a variety of resistor shapes, reduce the design and manufacturing costs of the nozzle, and avoid suction failure or component drop.
Smart Images
Figure CN223452319U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present disclosure relates to the technical field of chip mounter, and particularly relates to a resistance chip suction nozzle and a mounting head. BACKGROUND
[0002] The SMT chip mounter is one of important links of the SMT production line, which can quickly and accurately mount small components such as resistance, capacitance, transistor and IC to the designated position of the printed circuit board (PCB).
[0003] In the mounting process of the resistance, the mounting head takes out the resistance from the packaging ribbon through the corresponding suction nozzle, and mounts it to the designated position of the circuit board. However, in the process of mounting the resistance, the ordinary suction nozzle is difficult to closely adhere to the surface of the resistance, so that the negative pressure cannot be formed to suck the resistance, resulting in suction failure or falling. In order to solve this problem, a special suction nozzle needs to be designed for the resistance, but the shapes and sizes of the resistance chip on the circuit board are different, so that a special suction nozzle is designed for each resistance chip, which increases the design and manufacturing cost of the suction nozzle. CONTENT OF THE INVENTION
[0004] The present disclosure aims to overcome the deficiencies in the prior art, and provide a resistance chip suction nozzle and a mounting head which can flexibly adapt to various specifications of resistance.
[0005] The purpose of the present disclosure is achieved by the following technical solutions:
[0006] A resistance chip suction nozzle comprises a connecting assembly and a suction nozzle head, the suction nozzle head is connected with one end of the connecting assembly;
[0007] The connecting assembly comprises a suction nozzle seat, a mounting rod and a positioning plate, the suction nozzle seat is connected with the mounting rod, the suction nozzle seat is provided with a through hole, the mounting rod is formed with a first air duct, the through hole is in communication with the first air duct, and the positioning plate is located at one end of the mounting rod away from the suction nozzle seat;
[0008] The suction nozzle head comprises a vacuum suction tube and a soft rubber suction nozzle core, the soft rubber suction nozzle core is connected with one end of the vacuum suction tube, the other end of the vacuum suction tube is sleeved on the first air duct, the vacuum suction tube is formed with a second air duct, the soft rubber suction nozzle core is provided with a third air duct, the second air duct is in communication with the third air duct, one end of the soft rubber suction nozzle core is a circular suction disc, and a suction hole is formed in the center of the circular suction disc.
[0009] In one of the embodiments, a positioning notch is formed in the periphery of the positioning plate.
[0010] In one of the embodiments, the electric resistance patch suction nozzle further comprises a buffer spring, the buffer spring is sleeved on the vacuum suction pipe, one end of the buffer spring abuts against the suction nozzle head, and the other end of the buffer spring abuts against the positioning plate.
[0011] In one of the embodiments, the suction nozzle head comprises a limiting cover, the limiting cover is located at one end of the soft rubber suction nozzle core close to the vacuum suction pipe, a limiting groove is formed in one end of the limiting cover close to the positioning plate, and one end of the buffer spring is located in the limiting groove.
[0012] In one of the embodiments, a fixing hole is formed in one end of the mounting rod close to the positioning plate, a fixing groove is arranged on one end of the vacuum suction pipe close to the mounting rod, the electric resistance patch suction nozzle further comprises a fixing piece, the fixing piece is arranged through the fixing hole, and one end of the fixing piece abuts against the fixing groove.
[0013] In one of the embodiments, a limiting block is arranged on one end of the mounting rod close to the suction nozzle seat, and the electric resistance patch suction nozzle further comprises a fastener, the fastener is located between the positioning plate and the limiting block.
[0014] In one of the embodiments, the limiting block, the suction nozzle seat, the positioning plate and the mounting rod are in an integrated structure.
[0015] A mounting head comprises a gas pipe joint, a moving device, a suction nozzle fixing seat and a suction nozzle assembly, the suction nozzle assembly comprises the electric resistance patch suction nozzle in any one of the above embodiments.
[0016] Compared with the prior art, the present disclosure has at least the following advantages:
[0017] The circular suction disc of the soft rubber suction nozzle core has good deformation capacity, can be closely attached to the surface of the element when adsorbing the curved surface element, and ensures that the soft rubber suction nozzle core and the element form a good negative pressure. At the same time, when adsorbing the planar element, the soft rubber suction nozzle core can also be closely attached and form an effective negative pressure. In this way, the deformation capacity of the circular suction disc enables the electric resistance patch suction nozzle to flexibly adapt to electric resistances of various shapes, thereby improving the reliability and flexibility of the suction. BRIEF DESCRIPTION OF DRAWINGS
[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present disclosure, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.
[0019] Figure 1A schematic view of the structure of a suction nozzle of a resistance patch of an embodiment;
[0020] Figure 2 A schematic view of the structure of a suction nozzle of a resistance patch of an embodiment; Figure 1 A sectional view of the suction nozzle of the resistance patch shown in FIG. 1;
[0021] Figure 3 A schematic view of the structure of a suction nozzle of a resistance patch of an embodiment; Figure 1 A schematic view of the structure of a suction nozzle of a resistance patch of an embodiment;
[0022] Figure 4 A schematic view of the structure of a suction nozzle of a resistance patch of an embodiment; Figure 1 A schematic view of the structure of a suction nozzle of a resistance patch of an embodiment;
[0023] Figure 5 A schematic view of the structure of a suction nozzle of a resistance patch of an embodiment; Figure 1 A schematic view of the structure of a suction nozzle of a resistance patch of an embodiment. DETAILED DESCRIPTION
[0024] For the purpose of clarity, the present disclosure will be described with reference to the accompanying drawings in which are shown a best mode contemplated for carrying out the present disclosure. The disclosure can, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and fully convey the scope of the disclosure to those skilled in the art.
[0025] It is to be understood that the singular forms “a,” “an,” and “the” include plural referents unless the context clearly dictates otherwise. It is to be understood that the terms “including,” “comprising,” “consisting” and “involving” and variations thereof, are intended to be equivalent in meaning to the term “comprising” as described above. It is to be understood that where the terms “including,” “comprising,” “consisting” and “involving” and variations thereof are used, they are meant to be equivalent in meaning to the term “consisting of” as described above.
[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. The terminology used in the description of the disclosure herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. As used in this description, the terms “may” and “might” include any one of the possible combinations of the terms “will,” “would,” “shall,” “should,” “can,” “could,” “might,” and “must.” The term “and / or” as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
[0027] In order to make the technical scheme and beneficial effects of the present disclosure more comprehensible, the present disclosure will be further described in detail below in conjunction with specific embodiments:
[0028] Please refer to Figures 1 to 5The resistance patch suction nozzle 10 of one embodiment of the utility model comprises a connecting assembly 100 and a suction nozzle head 200, and the suction nozzle head 200 is connected with one end of the connecting assembly 100. The connecting assembly 100 comprises a suction nozzle seat 110, a mounting rod 120 and a positioning plate 130. The suction nozzle seat 110 is connected with the mounting rod 120, the suction nozzle seat 110 is provided with a through hole 1101, the mounting rod 120 is formed with a first air channel 1201, the through hole 1101 is communicated with the first air channel 1201, and the positioning plate 130 is located at one end of the mounting rod 120 away from the suction nozzle seat 110. The suction nozzle head 200 comprises a vacuum suction tube 210 and a soft rubber suction nozzle core 220, the soft rubber suction nozzle core 220 is connected with one end of the vacuum suction tube 210, the other end of the vacuum suction tube 210 is sleeved on the first air channel 1201, the vacuum suction tube 210 is formed with a second air channel 2101, the soft rubber suction nozzle core 220 is provided with a third air channel 2201, the second air channel 2101 is communicated with the third air channel 2201, one end of the soft rubber suction nozzle core 220 is a circular suction disc 221, and a suction hole 2211 is formed in the center of the circular suction disc 221.
[0029] In the embodiment, the circular suction disc 221 of the soft rubber suction nozzle core 220 has good deformation capacity, can be closely attached to the surface of the element when adsorbing the curved surface element, and ensures that the soft rubber suction nozzle core 220 and the element form good negative pressure. At the same time, when adsorbing the planar element, the soft rubber suction nozzle core 220 can also be closely attached and form effective negative pressure. In this way, the deformation capacity of the circular suction disc 221 enables the resistance patch suction nozzle 10 to flexibly adapt to resistance of various shapes, thereby improving the reliability and flexibility of suction.
[0030] As shown in the drawings, Figure 1 In one embodiment, a positioning notch 1301 is formed in the periphery of the positioning plate 130. Specifically, in the embodiment, the number of the positioning notches 1301 is two, and the two positioning notches 1301 are directed to the same side. The positioning notches 1301 provide intuitive indication for the operator, and the installation direction of the resistance patch suction nozzle 10 can be confirmed through the direction of the positioning notches 1301, thereby avoiding problems caused by incorrect installation direction of the resistance patch suction nozzle 10. At the same time, in the mounting process, the positioning notches 1301 can help to confirm the placement position and direction of the element, ensure that the element is accurately placed at the predetermined position, and improve the reliability of the overall operation.
[0031] As shown in the drawings, Figure 1 and Figure 2 In one embodiment, the resistance patch suction nozzle 10 further comprises a buffer spring 300, the buffer spring 300 is sleeved on the vacuum suction tube 210, one end of the buffer spring 300 abuts against the suction nozzle head 200, and the other end of the buffer spring 300 abuts against the positioning plate 130. It can be understood that the buffer spring 300 can absorb vibration and impact in the mounting process, and avoid damage to the resistance patch suction nozzle 10.
[0032] like Figures 1 to 3 As shown, in one embodiment, the nozzle head 200 includes a limiting cover 230, which is located at the end of the soft glue nozzle core 220 close to the vacuum pipe 210. The limiting cover 230 is provided with a limiting groove 2301 at the end close to the positioning plate 130, and one end of the buffer spring 300 is located in the limiting groove 2301. It can be understood that the limiting cover 230 is sleeved on the connection between the vacuum pipe 210 and the nozzle core, further fixing the nozzle on the vacuum pipe 210, thereby preventing the soft glue nozzle core 220 from falling off during the placement process, avoiding suction failure or component drop caused by the falling of the soft glue nozzle core 220.
[0033] Furthermore, the limiting groove 2301 opened on the top of the limiting cover 230 provides good support for the buffer spring 300, thereby ensuring the stability of the buffer spring 300.
[0034] Specifically, in this embodiment, the limiting cover 230 and the soft rubber nozzle core 220 are an integrally formed structure.
[0035] like Figures 2 to 4 As shown, in one embodiment, a fixing hole (not shown) is provided at one end of the mounting rod 120 near the positioning plate 130, and a fixing groove 2102 is provided at one end of the vacuum pipette 210 near the mounting rod 120. The resistor patch nozzle 10 also includes a fixing member 400, which is inserted into the fixing hole, and one end of the fixing member 400 abuts against the fixing groove 2102. Specifically, in this embodiment, the vacuum pipette 210 achieves relative sliding within the mounting rod 120 through the cooperation between the fixing groove 2102 and the fixing member 400, thereby driving the soft rubber nozzle core 220 to slide relative to the mounting rod 120. This can adapt to components of different heights and improve the flexibility of the resistor patch nozzle 10. At the same time, the provision of the fixing member 400 enhances the connection stability between the nozzle head 200 and the mounting rod 120, prevents the nozzle head 200 from loosening during operation, improves the reliability of the resistor patch nozzle 10, and avoids damage to components due to position deviation.
[0036] like Figures 1 to 5 As shown, in one embodiment, a limit block 140 is provided at one end of the mounting rod 120 near the nozzle holder 110. The resistor patch nozzle 10 further includes a fastener 500, which is located between the positioning plate 130 and the limit block 140. Specifically, in this embodiment, the fastener 500 is sleeved over a section of the mounting rod 120 having a fixing hole and is limited in position by the limit block 140 and the positioning plate 130, thereby limiting the movement of the fixing member 400 and improving the structural stability of the resistor patch nozzle 10.
[0037] Further, in the embodiment, the fixing member 400 is a positioning pin, and the fastener 500 is a snap spring, so that the mounting and dismounting process of the resistance patch suction nozzle 10 can be simplified.
[0038] As shown in Figure 1 and Figure 2 In one embodiment, the limiting block 140, the suction nozzle seat 110, the positioning plate 130, and the mounting rod 120 are integrally formed. It can be understood that the connecting assembly 100 of the resistance patch suction nozzle 10 is integrally formed, which improves the overall strength and fatigue resistance of the connecting assembly 100, thereby prolonging the service life of the connecting assembly 100.
[0039] The present disclosure also provides a mounting head, which comprises a gas pipe joint, a moving device, a suction nozzle fixing seat, and a suction nozzle assembly. The suction nozzle assembly comprises the resistance patch suction nozzle 10 in any of the above embodiments.
[0040] In the embodiment, the mounting head is configured with multiple resistance patch suction nozzles 10 to realize suction and mounting of multiple resistors of different specifications, which reduces the design and manufacturing cost of the suction nozzle, improves the flexibility and stability of the suction nozzle assembly, and avoids the failure of component suction or falling.
[0041] Compared with the prior art, the present disclosure has at least the following advantages:
[0042] The circular suction disc of the soft rubber suction nozzle core has good deformation ability, can closely adhere to the surface of the component when suctioning the curved surface component, and ensures that the soft rubber suction nozzle core and the component form a good negative pressure. At the same time, when suctioning the flat surface component, the soft rubber suction nozzle core can also closely adhere and form an effective negative pressure. In this way, the deformation ability of the circular suction disc enables the resistance patch suction nozzle to flexibly adapt to resistors of various shapes, thereby improving the reliability of suction.
[0043] The above-described embodiments only express several embodiments of the present disclosure, and the description is relatively specific and detailed, but it cannot be understood as a limitation on the scope of the disclosed patent. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the present disclosure, a number of modifications and improvements can be made, which are within the scope of protection of the present disclosure. Therefore, the protection scope of the present disclosure patent should be subject to the appended claims.
Claims
1. A resistor chip nozzle, comprising a connecting component and a nozzle head, wherein the nozzle head and one end of the connecting component are characterized in that: The connecting assembly includes a nozzle holder, a mounting rod, and a positioning plate, wherein the nozzle holder is connected to the mounting rod, the nozzle holder is provided with a through hole, the mounting rod is formed with a first air passage, the through hole is communicated with the first air passage, and the positioning plate is located at an end of the mounting rod away from the nozzle holder; The suction nozzle head includes a vacuum tube and a soft glue nozzle core. The soft glue nozzle core is connected to one end of the vacuum tube. The other end of the vacuum tube is sleeved on the first air channel. The vacuum tube forms a second air channel. The soft glue nozzle core is provided with a third air channel. The second air channel is connected to the third air channel. One end of the soft glue nozzle core is a circular suction cup. A suction hole is provided in the center of the circular suction cup.
2. The resistor patch nozzle according to claim 1, characterized in that: A positioning notch is provided on the periphery of the positioning plate.
3. The resistor patch nozzle according to claim 1, characterized in that: The resistor patch suction nozzle further includes a buffer spring, which is sleeved on the vacuum suction tube. One end of the buffer spring abuts against the suction nozzle head, and the other end of the buffer spring abuts against the positioning plate.
4. The resistor patch nozzle according to claim 3, characterized in that: The nozzle head includes a limiting cover, which is located at one end of the soft rubber nozzle core close to the vacuum tube. A limiting groove is formed at one end of the limiting cover close to the positioning plate, and one end of the buffer spring is located in the limiting groove.
5. The resistor patch nozzle according to claim 1, characterized in that: A fixing hole is provided at one end of the mounting rod close to the positioning plate, a fixing groove is provided at one end of the vacuum suction tube close to the mounting rod, and the resistor patch suction nozzle also includes a fixing part, which is passed through the fixing hole, and one end of the fixing part abuts against the fixing groove.
6. The resistor chip nozzle according to claim 1, characterized in that: A limiting block is provided at one end of the mounting rod close to the nozzle seat, and the resistor patch nozzle further comprises a fastener, which is located between the positioning plate and the limiting block.
7. The resistor chip nozzle according to claim 6, characterized in that: The limiting block, the nozzle seat, the positioning plate and the mounting rod are an integrally formed structure.
8. A placement head, comprising an air pipe joint, a moving device, a nozzle fixing seat and a nozzle assembly, characterized in that: The nozzle assembly comprises the resistor patch nozzle according to any one of claims 1 to 7.