Suction nozzle rod with good concentricity

Abstract

The utility model belongs to the technical field of chip mounters, and particularly relates to a suction nozzle rod with good concentricity, which comprises a long pipe, a connecting pipe is movably mounted at one end of the long pipe, a suction nozzle head is sleeved on the long pipe and positioned in the connecting pipe, a groove is arranged on the suction nozzle head and positioned in the connecting pipe, a plurality of limit grooves are arranged on the side wall of the connecting pipe, and the limit grooves are communicated with the long pipe. An oval block is movably installed in the limiting groove, one end of the oval block extends into the groove, the connecting pipe is sleeved with a rubber ring making contact with the other end of the oval block, L-shaped grooves are symmetrically formed in the positions, located below the rubber ring, of the connecting pipe, and protruding blocks are fixedly installed on the side wall of the long pipe and located in the L-shaped grooves; according to the utility model, when the whole device is used, the concentricity of the whole device is ensured to be higher after the whole device is assembled, and the suction nozzle rod with high concentricity can ensure that each chip is accurately installed, so that the function of a circuit board is stably exerted.

Description

Technical Field

[0001] The utility model belongs to the technical field of pick-and-place machines, and particularly relates to a nozzle rod with good concentricity. Background Technique

[0002] The nozzle rod of a pick-and-place machine is an important component of the pick-and-place machine. The quality and performance of the nozzle rod will directly affect the working efficiency and mounting quality of the pick-and-place machine. Different types of pick-and-place machines may be equipped with nozzle rods of different specifications to meet the mounting requirements of components of different sizes and types.

[0003] The existing nozzle rods have poor concentricity. In the manufacturing of electronic devices, poor concentricity of the nozzle rod may cause problems such as poor signal and functional failures in electronic products such as mobile phones; in the production of precision instruments, the performance of the instruments may not meet the requirements. In view of this, we propose a nozzle rod with good concentricity. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a nozzle rod with good concentricity to solve the problems raised in the above background technique.

[0005] In view of this, the utility model provides a nozzle rod with good concentricity, including:

[0006] A long tube, one end of the long tube is movably installed with a connecting tube, a nozzle head is sleeved on the long tube and located inside the connecting tube, a groove is opened on the periphery of the nozzle head and located inside the connecting tube, a plurality of limiting grooves are opened on the side wall of the connecting tube, an elliptical block is movably installed in the limiting groove, and one end of the elliptical block extends into the groove, a rubber ring in contact with the other ends of the plurality of elliptical blocks is sleeved on the connecting tube, two L-shaped grooves are opened on the connecting tube and below the rubber ring, a convex block is fixedly installed on the side wall of the long tube and located inside the L-shaped groove, a sliding groove communicated with the L-shaped groove is opened on the inner wall of the connecting tube, a rotating ring is rotatably installed on the long tube and below the connecting tube, and a spring is sleeved on the long tube between the connecting tube and the rotating ring.

[0007] In this technical solution, during assembly, first insert one end of the nozzle head into the connecting tube. When one end of the nozzle head contacts one end of the plurality of elliptical blocks, the elliptical blocks will be displaced in a direction away from the center of the nozzle head under the extrusion of one end of the nozzle head. Subsequently, the other end of the elliptical block will push against the rubber ring, causing the rubber ring to deform. At this time, the nozzle head continues to be displaced until one end of the elliptical block is displaced into the groove on the nozzle head. Under the elastic force of the rubber ring, the rubber ring will cause one end of the elliptical block to enter the groove. At this time, one ends of the plurality of elliptical blocks will all enter the groove, so that the nozzle head is limited inside the connecting tube;

[0008] Subsequently, the connecting pipe is sleeved on one end of the long pipe. Subsequently, the two sliding grooves on the inner wall of the connecting pipe are aligned with the corresponding convex blocks. Subsequently, the connecting pipe is displaced towards the direction of the convex blocks. At this time, the convex blocks will be displaced relative to the sliding grooves. At this time, the spring will be compressed by the connecting pipe and will contract until the connecting pipe can no longer be displaced towards the direction of the convex blocks. At this time, the convex blocks will enter one end of the L-shaped groove. Subsequently, the connecting pipe is rotated positively, so that the L-shaped groove on the connecting pipe rotates positively. Subsequently, the convex blocks will slide relative to the L-shaped groove. Subsequently, after the L-shaped groove rotates positively, it will be blocked by the convex blocks and cannot continue to rotate positively. At this time, the connecting pipe is released. Under the action of the spring's rebound force, the spring will push the connecting pipe to displace away from the rotating ring until the other end of the L-shaped groove is blocked by the convex blocks and the connecting pipe can no longer be displaced. At this time, the connecting pipe will be limited. The connecting pipe is limited by the two convex blocks and cannot rotate without external force. And one end of the long pipe will enter the nozzle head. At this time, the overall device is installed.

[0009] In the above technical solution, further, the nozzle head is movably connected to one end of the long pipe, and the lower end of the nozzle head is in a frustum shape.

[0010] In this technical solution, it is ensured that the nozzle head can move on the long pipe; it is ensured that the lower end of the nozzle head can squeeze a number of elliptical blocks to displace towards a position away from the center of the nozzle head.

[0011] In the above technical solution, further, the inner wall diameter of the limiting groove on the side close to the nozzle head is smaller than the inner wall diameter of the limiting groove on the side away from the nozzle head.

[0012] In this technical solution, it is ensured that the elliptical blocks do not enter the inner cavity of the connecting pipe.

[0013] In the above technical solution, further, the convex blocks are slidably connected to the L-shaped groove and the sliding groove.

[0014] In this technical solution, it is ensured that the convex blocks can slide in the L-shaped groove and the sliding groove.

[0015] In the above technical solution, further, a number of the elliptical blocks are distributed at equal intervals in a ring shape.

[0016] In this technical solution, it is ensured that the nozzle head can be fixed stably.

[0017] In the above technical solution, further, the center of the long pipe, the center of the connecting pipe, and the center of the nozzle head are located on the same vertical horizontal line, and the diameter of the long pipe is equal to the inner diameter of the lower end of the nozzle head.

[0018] In this technical solution, the concentricity of the overall device is ensured to be high after assembly; when the lower end of the nozzle head is sleeved on the long tube, the gas in the long tube will not leak out between the inner wall of the nozzle head and the side wall of the long tube.

[0019] The beneficial effects of the present utility model are:

[0020] The nozzle rod with good concentricity, through the cooperation of the long tube, nozzle head, connecting tube, rubber ring, rotating ring, groove, elliptical block, L-shaped groove, limiting groove, spring, convex block and sliding groove, ensures that the concentricity of the overall device is relatively high after assembly. The nozzle rod with high concentricity can ensure that each chip is installed accurately, enabling the circuit board to function stably. Moreover, under the action of the spring, it can buffer the nozzle head well when using the overall device, making the nozzle head more stable during use. Description of the Drawings

[0021] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0022] Figure 2 It is a schematic diagram of the structure of the nozzle head in the present utility model;

[0023] Figure 3 It is a schematic diagram of the internal structure of the connecting tube in the present utility model;

[0024] Figure 4 It is a schematic diagram of the sectional structure of the connecting tube in the present utility model;

[0025] Figure 5 It is a schematic diagram of the structure of the connecting tube in the present utility model;

[0026] Figure 6 It is a schematic diagram of the regional structure of the spring in the present utility model;

[0027] Figure 7 For the present utility model Figure 6 The enlarged schematic diagram at position A;

[0028] Figure 8 It is a schematic diagram of the sectional structure of the connecting tube in the present utility model;

[0029] Figure 9 It is a schematic diagram of the internal structure of the connecting tube in the present utility model;

[0030] Figure 10 It is a schematic diagram of the sectional structure of the nozzle head in the present utility model.

[0031] The marks in the figure are indicated as:

[0032] 1. Long tube; 2. Nozzle head; 3. Connecting tube; 4. Rubber ring; 5. Rotating ring; 6. Groove; 7. Oval block; 8. L-shaped groove; 9. Limiting groove; 10. Spring; 11. Bump; 12. Slide groove. Detailed implementation manner

[0033] The technical solutions in the embodiments of the present application will be clearly described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the present application.

[0034] In the description of the present application, it should be noted that the terms used here are only for describing specific implementation manners, and are not intended to limit the exemplary embodiments according to the present application. For the convenience of description, the dimensions of each part shown in the drawings are not drawn in actual proportional relationship. Technologies, methods, and devices known to those of ordinary skill in the relevant field may not be discussed in detail, but where appropriate, the said technologies, methods, and devices should be regarded as part of the authorization specification. In all the examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that: similar reference numerals and letters indicate similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0035] It should be noted that the terms "first", "second", etc. in the description and claims of the present application are used to distinguish similar objects, rather than to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are usually of the same type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the description and claims means at least one of the connected objects, and the character " / " generally means an "or" relationship between the associated objects before and after.

[0036] It should be noted that in the description of the present application, the orientation or positional relationships indicated by the orientation terms such as "front, rear, upper, lower, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom", etc. are usually based on the orientation or positional relationships shown in the drawings. It is only for the convenience of describing the present application and simplifying the description. Without contrary explanations, these orientation terms do not indicate and imply that the devices or components referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the protection scope of the present application; the orientation terms "inside, outside" refer to the inside and outside relative to the contour of each component itself.

[0037] It should be noted that in the present application, the term "comprising", "including" or any other variants thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitations, the element defined by the statement "including one..." does not exclude the existence of additional identical elements in the process, method, article or device including the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in the reverse order according to the functions involved. For example, the described methods may be performed in an order different from that described, and various steps may also be added, omitted, or combined. Additionally, the features described with reference to certain examples may be combined in other examples.

[0038] Embodiment 1:

[0039] Please refer to Figure 1 - Figure 10 as shown, this embodiment provides a nozzle rod with good concentricity, including:

[0040] A long tube 1, one end of the long tube 1 is movably installed with a connecting tube 3. A nozzle head 2 is sleeved on the long tube 1 and located inside the connecting tube 3. A groove 6 is opened on the circumferential side of the nozzle head 2 and located inside the connecting tube 3. A plurality of limiting grooves 9 are opened on the side wall of the connecting tube 3. An elliptical block 7 is movably installed in the limiting groove 9, and one end of the elliptical block 7 extends into the groove 6. A rubber ring 4 in contact with the other ends of the plurality of elliptical blocks 7 is sleeved on the connecting tube 3. Two L-shaped grooves 8 are opened on the connecting tube 3 and below the rubber ring 4. A convex block 11 is fixedly installed on the side wall of the long tube 1 and located inside the L-shaped groove 8. A sliding groove 12 communicating with the L-shaped groove 8 is opened on the inner wall of the connecting tube 3. A rotating ring 5 is rotatably installed on the long tube 1 and below the connecting tube 3. A spring 10 is sleeved on the long tube 1 between the connecting tube 3 and the rotating ring 5.

[0041] Among them, during assembly, first insert one end of the nozzle head 2 into the connecting pipe 3. When one end of the nozzle head 2 contacts one end of several elliptical blocks 7, the elliptical blocks 7 will be displaced in a direction away from the center of the nozzle head 2 under the extrusion of one end of the nozzle head 2. Subsequently, the other end of the elliptical block 7 will press against the rubber ring 4, causing the rubber ring 4 to deform. At this time, the nozzle head 2 continues to displace until one end of the elliptical block 7 is displaced into the groove 6 on the nozzle head 2. Under the elastic force of the rubber ring 4, the rubber ring 4 will cause one end of the elliptical block 7 to enter the groove 6. At this time, one ends of several elliptical blocks 7 will all enter the groove 6, so that the nozzle head 2 is limited in the connecting pipe 3;

[0042] Subsequently, put the connecting pipe 3 on one end of the long pipe 1. Then, align the two sliding grooves 12 on the inner wall of the connecting pipe 3 with the corresponding convex blocks 11. Then, displace the connecting pipe 3 in the direction of the convex block 11. At this time, the convex block 11 will be displaced relative to the sliding groove 12. At this time, the spring 10 will contract under the extrusion of the connecting pipe 3 until the connecting pipe 3 can no longer be displaced in the direction of the convex block 11. At this time, the convex block 11 will enter one end of the L-shaped groove 8. Then, rotate the connecting pipe 3 forward, so that the L-shaped groove 8 on the connecting pipe 3 rotates forward. Subsequently, the convex block 11 will slide relative to the L-shaped groove 8. Then, after the L-shaped groove 8 rotates forward, it will be blocked by the convex block 11 and cannot continue to rotate forward. At this time, release the connecting pipe 3. Under the rebounding force of the spring 10, the spring 10 will push the connecting pipe 3 to displace in a direction away from the rotating ring 5 until the other end of the L-shaped groove 8 is blocked by the convex block 11 and the connecting pipe 3 can no longer be displaced. At this time, the connecting pipe 3 will be limited. The connecting pipe 3 is limited by the two convex blocks 11 and cannot rotate without external force. And one end of the long pipe 1 will enter the nozzle head 2. At this time, the overall device is installed.

[0043] Embodiment 2:

[0044] This embodiment provides a nozzle rod with good concentricity. In addition to including the technical solutions of the above embodiments, it also has the following technical features. The nozzle head 2 is movably connected to one end of the long pipe 1, and the lower end of the nozzle head 2 is in a frustum shape.

[0045] Among them, ensure that the nozzle head 2 can move on the long pipe 1; ensure that the lower end of the nozzle head 2 can squeeze several elliptical blocks 7 to displace in a position away from the center of the nozzle head 2.

[0046] Embodiment 3:

[0047] This embodiment provides a nozzle rod with good concentricity. In addition to including the technical solutions of the above embodiments, it also has the following technical features. The inner wall diameter of the limiting groove 9 on the side close to the nozzle head 2 is smaller than the inner wall diameter of the limiting groove 9 on the side away from the nozzle head 2.

[0048] Among them, it is ensured that the elliptical block 7 does not enter the inner cavity of the connecting pipe 3.

[0049] Embodiment 4:

[0050] This embodiment provides a nozzle rod with good concentricity. In addition to including the technical solutions of the above embodiments, it also has the following technical features: the convex block 11 is slidably connected to the L-shaped groove 8 and the sliding groove 12.

[0051] Among them, it is ensured that the convex block 11 can slide within the L-shaped groove 8 and the sliding groove 12.

[0052] Embodiment 5:

[0053] This embodiment provides a nozzle rod with good concentricity. In addition to including the technical solutions of the above embodiments, it also has the following technical features: several elliptical blocks 7 are distributed at equal intervals in a ring shape.

[0054] Among them, it is ensured that the nozzle head 2 can be fixed stably.

[0055] Embodiment 6:

[0056] This embodiment provides a nozzle rod with good concentricity. In addition to including the technical solutions of the above embodiments, it also has the following technical features: the center of the long tube 1, the center of the connecting pipe 3, and the center of the nozzle head 2 are located on the same vertical horizontal line, and the diameter of the long tube 1 is equal to the inner diameter of the lower end of the nozzle head 2.

[0057] Among them, it is ensured that the overall device has high concentricity after assembly; it is ensured that when the lower end of the nozzle head 2 is sleeved on the long tube 1, the gas in the long tube 1 will not leak out between the inner wall of the nozzle head 2 and the side wall of the long tube 1.

[0058] Working principle: During assembly, first insert one end of the nozzle head 2 into the connecting pipe 3. When one end of the nozzle head 2 contacts one end of several elliptical blocks 7, the elliptical blocks 7 will be displaced in a direction away from the center of the nozzle head 2 under the extrusion of one end of the nozzle head 2. Subsequently, the other end of the elliptical block 7 will press against the rubber ring 4, causing the rubber ring 4 to deform. At this time, the nozzle head 2 continues to be displaced until one end of the elliptical block 7 is displaced into the groove 6 on the nozzle head 2. Under the elastic force of the rubber ring 4, the rubber ring 4 will cause one end of the elliptical block 7 to enter the groove 6. At this time, one ends of several elliptical blocks 7 will all enter the groove 6, so that the nozzle head 2 is limited within the connecting pipe 3;

[0059] Subsequently, the connecting pipe 3 is sleeved on one end of the long pipe 1. Then, the two sliding grooves 12 on the inner wall of the connecting pipe 3 are aligned with the corresponding convex blocks 11. Then, the connecting pipe 3 is displaced towards the direction of the convex block 11. At this time, the convex block 11 will be displaced relative to the sliding groove 12. At this time, the spring 10 will be compressed by the connecting pipe 3 and contract until the connecting pipe 3 can no longer be displaced towards the direction of the convex block 11. At this time, the convex block 11 will enter one end of the L-shaped groove 8. Then, the connecting pipe 3 is rotated forward, so that the L-shaped groove 8 on the connecting pipe 3 rotates forward. Subsequently, the convex block 11 will slide relative to the L-shaped groove 8. Then, after the L-shaped groove 8 rotates forward, it will be blocked by the convex block 11 and cannot continue to rotate forward. At this time, the connecting pipe 3 is released. Under the action of the rebounding force of the spring 10, the spring 10 will push the connecting pipe 3 to displace away from the rotating ring 5 until the other end of the L-shaped groove 8 is blocked by the convex block 11 and the connecting pipe 3 can no longer be displaced. At this time, the connecting pipe 3 will be limited. The connecting pipe 3 is limited by the two convex blocks 11 and cannot rotate without external force. And, one end of the long pipe 1 will enter the suction nozzle head 2. At this time, the whole device is installed.

[0060] The embodiments of the present application have been described above in conjunction with the accompanying drawings. Without conflict, the embodiments and the features in the embodiments in the present application can be combined with each other. The present application is not limited to the above specific embodiments. The above specific embodiments are merely illustrative and not restrictive. Under the inspiration of the present application, those of ordinary skill in the art can also make many forms without departing from the purpose of the present application and the scope protected by the claims, and all belong to the protection scope of the present application.

Claims

1. A nozzle rod with good concentricity, characterized in that: include: A long tube (1), one end of the long tube (1) is movably mounted with a connecting tube (3), a nozzle head (2) is sleeved on the long tube (1) and located inside the connecting tube (3), a groove (6) is provided on the peripheral side of the nozzle head (2) and located inside the connecting tube (3), a side wall of the connecting tube (3) is provided with a plurality of limiting grooves (9), an elliptical block (7) is movably mounted in the limiting groove (9), one end of the elliptical block (7) extends into the groove (6), and a connecting tube (3) is sleeved with a plurality of elliptical blocks (7) and connected to the other ends of the plurality of elliptical blocks (7). The connecting tube (3) is provided with a rubber ring (4) that contacts the connecting tube (3), two L-shaped grooves (8) are provided on the connecting tube (3) and below the rubber ring (4), a protrusion (11) is fixedly installed on the side wall of the long tube (1) and located in the L-shaped groove (8), a sliding groove (12) connected to the L-shaped groove (8) is provided on the inner wall of the connecting tube (3), a rotating ring (5) is rotatably installed on the long tube (1) and located below the connecting tube (3), and a spring (10) is sleeved on the long tube (1) and located between the connecting tube (3) and the rotating ring (5).

2. A nozzle rod with good concentricity according to claim 1, characterized in that: The suction nozzle head (2) is movably connected to one end of the long tube (1), and the lower end of the suction nozzle head (2) is in a truncated cone-shaped structure.

3. A nozzle rod with good concentricity according to claim 1, characterized in that: The inner wall diameter of the limiting groove (9) on the side close to the suction nozzle head (2) is smaller than the inner wall diameter of the limiting groove (9) on the side away from the suction nozzle head (2).

4. A nozzle rod with good concentricity according to claim 1, characterized in that: The protrusion (11) is slidably connected to the L-shaped groove (8) and the sliding groove (12).

5. The nozzle rod with good concentricity according to claim 1, characterized in that: The plurality of elliptical blocks (7) are distributed in a ring-like shape with equal spacing.

6. A nozzle rod with good concentricity according to claim 1, characterized in that: The center of the long tube (1) is located on the same vertical horizontal line as the center of the connecting tube (3) and the center of the suction nozzle (2); the diameter of the long tube (1) is equal to the inner diameter of the lower end of the suction nozzle (2).

Images