Chip mounter suction nozzle head

Abstract

The utility model relates to the technical field of electronic component production, in particular to a suction nozzle head of a chip mounter. Comprising a connecting part, a positioning shell sleeve and a fixing needle, one end of the positioning shell sleeve is fixedly connected with the connecting part, and the other end of the positioning shell sleeve is an open end; the fixing needle is arranged in the positioning shell sleeve, one end of the fixing needle is fixedly connected with the connecting part, and the other end of the fixing needle points to the opening end of the positioning shell sleeve; the connecting part is provided with a vacuum hole channel, the vacuum hole channel penetrates through the positioning shell sleeve, and when an object is adsorbed, the object to be grabbed enters the positioning shell sleeve and forms a sealed space with the positioning shell sleeve. The suction nozzle head of the chip mounter can quickly and stably grab an object, and has the advantage of simple structure.

Description

Technical Field

[0001] This utility model relates to the field of electronic component manufacturing technology, specifically to a pick-and-place machine nozzle used on a pick-and-place machine. Background Technology

[0002] In the packaging process of modules such as Easy 2B, surface mount technology (SMT) is the key component. As the control unit of the module, chip mounting is a crucial step in the packaging process. In SMT assembly, electronic components are fed to designated positions according to assembly requirements by a feeder, while the nozzles mounted on the mounting head pick up and place the components into the designated areas using vacuum suction, thus completing the entire assembly process.

[0003] The welding of the support base is for inserting the module's signal pins, serving as the module's external interface. Poor welding of the support base will cause the module's control signal transmission to be obstructed, leading to module failure. The support base has an overall "I" shape, with identical rings at the top and bottom, and a hollow cylindrical hole in the middle. The central hole is mainly for inserting the signal pins, allowing for better welding of the signal pins to the substrate.

[0004] In the production process, the original pick-and-place machine nozzles had low efficiency in picking up the placement blocks. Specifically, for example... Figures 1-2 As shown, the existing pick-and-place machine nozzle head first inserts into the hollow cylindrical hole through the fixing pin, and then uses the vacuum channel on the connecting part to adsorb the mount. This has a significant problem: the fixing pin of the original pick-and-place machine nozzle head is too long, which makes it easy for the fixing pin to stick to the solder paste on the substrate during the positioning of the mount and transfer and block the vacuum hole. The pick-and-place machine nozzle head can only be firmly adsorbed when it is close to the upper surface of the mount. This makes the mount fall off when the pick-and-place machine nozzle head is blocked during high-speed operation. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a pick-and-place machine nozzle head that can quickly and stably grasp objects and has the advantage of simple structure.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A pick-and-place machine nozzle head is provided, including

[0008] This embodiment discloses a pick-and-place machine nozzle, characterized by comprising: a connecting part, a positioning sleeve, and a fixing pin.

[0009] This connecting part serves as the main body of the pick-and-place machine nozzle head, and a positioning sleeve and fixing pins are provided on the connecting part.

[0010] One end of the positioning sleeve is fixedly connected to the connecting part, and the other end of the positioning sleeve is an open end;

[0011] The inner space of the positioning sleeve can be in various shapes, mainly suitable for the shape of the object to be grabbed. The other end of the positioning sleeve is an open end for the object to enter the positioning sleeve.

[0012] The fixing needle is arranged in the positioning sleeve, and the fixing needle points to the open end of the positioning sleeve.

[0013] The fixing needle is located in the positioning sleeve, which facilitates the positioning of the object into the positioning sleeve through the fixing needle, thereby guiding the object. The other end of the fixing needle points to the outside of the positioning sleeve, which facilitates the insertion of the fixing needle into the corresponding object, thereby achieving the positioning effect.

[0014] A vacuum hole is formed in the connecting portion, and the vacuum hole penetrates the positioning sleeve,

[0015] When the object is adsorbed, the object to be grabbed enters the positioning sleeve and forms a sealed space with the positioning sleeve.

[0016] Since the object is in contact with the inner wall of the positioning sleeve to form a sealed space, and the vacuum hole is connected to the positioning sleeve, when the object forms a sealed space with the positioning sleeve, the atmospheric pressure will push the object into the positioning sleeve under the vacuum condition provided by the vacuum hole. At this time, the object does not need to be in contact with the vacuum hole to successfully grab the object, so that the object can be quickly and efficiently and stably grabbed. The problem of traditional stable grabbing of the object by needing the object to be in contact with the vacuum hole is overcome, and the whole sealed space is used to grab the object, which has a larger suction surface and is more conducive to improving the grabbing efficiency.

[0017] In some embodiments, the inner wall of the positioning sleeve is arched towards the middle part of the positioning sleeve and forms a convex wall, which can be in contact with the object in the positioning sleeve.

[0018] The convex wall of the inner wall of the positioning sleeve is more convenient for the inner wall of the positioning sleeve to contact the object, so that the object is more stably positioned in the positioning sleeve, which is conducive to forming a better sealed space with negative pressure.

[0019] In some embodiments, the axis direction of the fixing needle is the same as the axis direction of the positioning sleeve.

[0020] At this time, the fixing needle points straight to the positioning sleeve, which can be more conveniently inserted into the object to be grabbed.

[0021] In some embodiments, the length of the fixing needle is less than the length of the positioning sleeve.

[0022] The length of the fixing needle is less than the length of the positioning sleeve, which can effectively avoid the problem that the tin paste is adsorbed onto the fixing needle due to the negative pressure adsorption effect when the pedestal is placed.

[0023] In some embodiments, the length of the fixing needle is 3 / 4-4 / 5 of the length of the positioning sleeve.

[0024] At this time, the fixing needle can be better placed into the positioning sleeve, and the positioning effect can also be ensured.

[0025] In some embodiments, the fixing needle is a conical fixing needle.

[0026] The conical fixing needle can be quickly inserted into the object to be positioned.

[0027] In some embodiments, the vacuum channel is composed of two arc-shaped channels, and the two arc-shaped channels are symmetrically distributed on both sides of the fixing needle.

[0028] The two symmetric arc-shaped channels can be uniformly distributed on the sealed space, ensuring that the negative pressure of the sealed space is the same.

[0029] The patch machine suction nozzle head has the following beneficial effects:

[0030] (1) The patch machine suction nozzle head sets a positioning sleeve at the connecting part. Under the positioning of the fixing needle, the abutment as the object to be grabbed enters the positioning sleeve and forms a sealed space with the positioning sleeve. Through the vacuum channel, the sealed space will form a large negative pressure. Under the action of atmospheric pressure, the abutment is quickly and stably adsorbed in the sealed space, avoiding the problem that the patch machine suction nozzle head is easily dropped during the movement of the abutment. When the patch machine suction nozzle head completes the grabbing, the vacuum channel stops the vacuum adsorption, so that the abutment can be released. In addition, since the positioning sleeve is set, the object can be better positioned without a long fixing needle, so that a short fixing needle can be set, effectively avoiding the problem that the vacuum channel is blocked by other sundries due to the too long fixing needle, and further ensuring the grabbing efficiency.

[0031] (2) The patch machine suction nozzle head sets the fixing needle in the positioning sleeve. The positioning sleeve can prevent external objects from damaging the fixing needle, effectively prolonging the service life of the patch machine suction nozzle head. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 is a structural schematic view of the prior art patch machine suction nozzle head.

[0033] Figure 2 is a working state schematic view of the prior art patch machine suction nozzle head and the abutment.

[0034] Figure 3 is a sectional view of the patch machine suction nozzle head of the embodiment.

[0035] Figure 4 is a top view of the patch machine suction nozzle head of the embodiment.

[0036] Figure 5 is the working state schematic diagram of the patch machine suction nozzle head and the pedestal of the embodiment.

[0037] Figure 6 The structural schematic diagram of the patch machine suction nozzle head of embodiment 1.

[0038] Figure 7 The structural schematic diagram of the patch machine suction nozzle head of embodiment 3.

[0039] Reference signs

[0040] 1, connecting part; 2, positioning shell; 3, fixed needle; 4, open end; 5, vacuum hole; 6, convex wall surface; 7, circular table space; 8, pedestal. DETAILED DESCRIPTION

[0041] The preferred embodiments of the present application will be described in more detail by referring to the attached drawings. Although the preferred embodiments of the present application are shown in the drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided in order to make the present application more thorough and complete, and to convey the scope of the present application to those skilled in the art.

[0042] The terms used in the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application. The singular form "a", "an", and "the" used in the present application and the appended claims are intended to include the plural form, unless the context clearly indicates otherwise. It should also be understood that the term "and / or" used herein means and includes any or all possible combinations of one or more associated listed items.

[0043] It should be understood that although the terms "first", "second", "third", etc. may be used in the present application to describe various information, these information should not be limited by these terms. These terms are only used to distinguish the same type of information from each other. For example, the first information can also be referred to as the second information, and similarly, the second information can also be referred to as the first information without departing from the scope of the present application. Therefore, the features defined as "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0044] In the Easy 2B module packaging process, the patching process is the focus of the packaging process. In the Easy 2B packaging process, the chip patching is mainly to make the control system of the module; and the welding of the pedestal is to make the signal needle of the module inserted, which is the external interface of the module. If the pedestal welding is poor, the control signal transmission of the module will be poor, and the module will be scrapped.

[0045] The structure of the pier base is as follows Figure 2 As shown, the overall shape is "I"-shaped, with identical circular rings at the top and bottom, and a hollow cylindrical hole in the center. The central hole is primarily for inserting signal pins, allowing for better soldering of the pins to the substrate. During the manufacturing process, as... Figure 1 The traditional pick-and-place machine nozzle shown has low efficiency in picking up the placeholders and often has some significant problems: the nozzle fixing pin is too long, causing the fixing pin to stick to the solder paste and block the vacuum hole; because the nozzle can only hold firmly when it is close to the upper surface of the placeholder, the placeholder may fall off during high-speed operation.

[0046] The following information is disclosed in this regard.

[0047] Example 1

[0048] This embodiment discloses a pick-and-place machine nozzle head characterized by, for example Figures 3-6 As shown, it includes: a connecting part 1, a positioning sleeve 2, and a fixing pin 3.

[0049] The connecting part 1 serves as the main body of the pick-and-place machine nozzle head, and a positioning sleeve 2 and a fixing pin 3 are provided on the connecting part 1.

[0050] Specifically, the connecting part 1 is the main structure of the pick-and-place machine nozzle head. It carries the positioning housing 2 and the fixing pin 3, and serves as the interface for connection with mechanical equipment. The positioning housing 2 is fixed to the connecting part 1, ensuring that one end is firmly connected to the connecting part 1 to form a fixed end. The other end of the positioning housing 2 is an open end 4, so that the pier for the object to be grasped can smoothly enter. The internal space of the positioning housing 2 is designed according to the shape of the object to be grasped, such as the shape and structure of the pier, to ensure that the object can be correctly placed and stably grasped. The shape of the internal space can be circular, square, or any other shape suitable for the shape of the object.

[0051] A fixing pin 3 is provided inside the positioning shell 2. One end of the fixing pin 3 is fixedly connected to the connecting part 1 to ensure its stability.

[0052] The other end of the fixing pin 3 is the open end 4 that points to the positioning shell 2, so that the object can be correctly positioned when it enters.

[0053] The shape and size of the fixing pin 3 are determined to ensure that it can fit into the internal space of the positioning shell 2 and match the shape of the object to be grasped.

[0054] The fixing pin 3 should be a slender structure to facilitate insertion into the object and provide stable positioning.

[0055] The fixed connection between one end of the fixing pin 3 and the connecting part 1 can be achieved by welding, threaded connection, snap-fit ​​or other mechanical connection methods.

[0056] Ensure the strength and durability of the connection to withstand the forces that can occur during operation.

[0057] Positioning and guiding of the fixing needle 3:

[0058] The other end of the fixing needle 3 is a sharp or flat tip to facilitate insertion into the object and provide stable positioning.

[0059] The position and angle of the fixing needle 3 need to be precisely adjusted to ensure that it can correctly guide the object into the positioning sleeve 2.

[0060] A guide slot or hole can be provided around the fixing needle 3 to help the fixing needle 3 more accurately insert into the object. The guide mechanism should take into account the size and shape of the object to ensure that the fixing needle 3 can smoothly guide the object.

[0061] The fixing needle 3 can be manufactured by machining, 3D printing or other manufacturing techniques.

[0062] The connection part 1 is provided with a vacuum channel 5 that penetrates the positioning sleeve 2,

[0063] When the object is adsorbed, the object to be grasped enters the positioning sleeve 2 and forms a sealed space with the positioning sleeve 2.

[0064] Since the object such as the abutment will fit the inner wall of the positioning sleeve 2 to form a sealed space, and the vacuum channel 5 is connected to the positioning sleeve 2, when the abutment forms a sealed space with the positioning sleeve 2, under the vacuum condition provided by the vacuum channel 5, atmospheric pressure will push the abutment into the positioning sleeve 2, at this time, the abutment does not need to be attached to the vacuum channel 5 to successfully grasp the abutment, so that the abutment can be quickly and efficiently and stably grasped. Overcomes the problem of traditional need to abutment to vacuum channel 5 to stably grasp the object, at the same time, the whole sealed space is used to grasp the abutment, which has a larger suction surface and is more conducive to improving the grasping efficiency.

[0065] In this embodiment, as shown in Figure 6 The inner wall of the positioning sleeve 2 is arched towards the middle of the positioning sleeve 2 and forms a raised wall 6, which can abut against the object in the positioning sleeve 2.

[0066] Providing the raised wall 6 on the inner wall of the positioning sleeve 2 makes it easier for the inner wall of the positioning sleeve 2 to contact the abutment, so that the abutment is more stably positioned in the positioning sleeve 2, which is conducive to forming a better sealed space with negative pressure.

[0067] Specifically,

[0068] The inner wall of the positioning sleeve 2 is arched outward to form a raised wall 6. This can increase the area of contact between the inner wall and the abutment, improving the sealing effect.

[0069] The shape of the raised wall 6 can be customized according to the shape of the object to be grabbed. Common convex shapes include hemispherical, elliptical, or specific curved shapes to ensure good contact with the object surface.

[0070] Install the positioning sleeve 2 on the connecting part 1 and make necessary adjustments to ensure that the raised wall 6 can correctly contact the object.

[0071] In practical applications, vacuum suction tests are conducted to verify whether the raised wall 6 can provide sufficient sealing effect and whether it can stably grab the object.

[0072] The raised wall 6 of the positioning sleeve 2 can more effectively contact the object, forming a better sealed space, thereby improving the suction capacity and grabbing stability of the patch machine suction nozzle.

[0073] In this embodiment, the axis direction of the fixing needle 3 is the same as the axis direction of the positioning sleeve 2.

[0074] At this time, the fixing needle 3 points directly to the positioning sleeve 2, which can be more conveniently inserted into the to-be-grabbed abutment.

[0075] Specifically, when the fixing needle 3 and the positioning sleeve 2 are fixed, their axis directions are ensured to coincide. This coaxiality can simplify the structure and improve the accuracy of positioning. One end of the fixing needle 3 is fixed to the connecting part 1, and the other end points directly to the opening end 4 of the positioning sleeve 2. This direct pointing helps the fixing needle 3 to directly align and insert into the to-be-grabbed object.

[0076] Because the fixing needle 3 is coaxial with the positioning sleeve 2, the fixing needle 3 can directly align with the center of the abutment, making the insertion process more accurate and convenient.

[0077] The coaxiality makes it easier for the fixing needle 3 to align with the insertion point of the abutment, reducing the time and operational complexity required for alignment.

[0078] Structural strength:

[0079] Ensure that the connection between the fixing needle 3 and the connecting part 1 is strong enough to withstand the force generated when inserting the object.

[0080] In this embodiment, the length of the fixing needle 3 is less than the length of the positioning sleeve 2.

[0081] The length of the fixing needle 3 being less than the length of the positioning sleeve 2 can effectively avoid the problem of the fixing needle 3 adsorbing solder paste onto the fixing needle 3 due to negative pressure adsorption when placing the abutment 8.

[0082] In particular, the length of the fixing needle 3 is ensured to be less than the length of the positioning sleeve 2. This can prevent the fixing needle 3 from extending out of the positioning sleeve 2 too much during operation, thereby reducing the direct contact area with the object to be grabbed.

[0083] During manufacturing, the length of the fixing needle 3 is precisely controlled to ensure that it is shorter than the positioning sleeve 2, but still long enough to achieve its positioning function.

[0084] The length of the fixing needle 3 being less than the length of the positioning sleeve 2 can effectively avoid the problem of the fixing needle 3 absorbing the tin paste when placing the pedestal 8, while maintaining the positioning and grabbing functions of the pick-and-place machine nozzle head. This improves the reliability and efficiency of the operation.

[0085] In this embodiment, the length of the fixing needle 3 is 3 / 4 to 4 / 5 of the length of the positioning sleeve 2.

[0086] At this time, the fixing needle 3 can be better placed into the positioning sleeve 2, and the positioning effect can also be guaranteed.

[0087] The length ratio of the fixing needle 3 to the positioning sleeve 2 is determined. The length of the fixing needle 3 is set to be between 3 / 4 and 4 / 5 of the length of the positioning sleeve 2, which can ensure that the fixing needle 3 can be effectively placed into the positioning sleeve 2, while leaving enough space to guarantee the positioning effect.

[0088] If the length of the positioning sleeve 2 is known, the length of the fixing needle 3 can be determined through simple mathematical calculation. For example, if the length of the positioning sleeve 2 is L, then the length of the fixing needle 3 L_pin should satisfy: 0.75L ≤ Lpin ≤ 0.80L0.75L ≤ Lpin ≤ 0.80L. During assembly, it is verified whether the fixing needle 3 can be smoothly placed into the positioning sleeve 2 and whether it affects the sealing and positioning functions of the positioning sleeve 2.

[0089] The length of the fixing needle 3 being 3 / 4 to 4 / 5 of the length of the positioning sleeve 2 can ensure that the fixing needle 3 can be effectively placed into the positioning sleeve 2, while guaranteeing the positioning effect, improving the operation efficiency and reliability of the pick-and-place machine nozzle head.

[0090] In this embodiment, the fixing needle 3 is a conical fixing needle 3.

[0091] The conical fixing needle 3 can be quickly inserted into the center hole of the pedestal to be positioned.

[0092] In particular, the fixing needle 3 is conical, which makes the tip portion have a small contact area, facilitating quick penetration through the center of the pedestal to be positioned.

[0093] The sharp tip of the conical fixing needle 3 can reduce the resistance during insertion and achieve quick penetration, which is particularly important for application scenarios that require rapid positioning.

[0094] The mechanical strength of the conical fixing needle 3 needs to be considered to prevent breakage or deformation during rapid insertion.

[0095] The conical fixing needle 3 is manufactured using precise machining techniques to ensure accurate dimensions and shape. The insertion performance of the conical fixing needle 3 is tested in actual operation to ensure that it can be quickly and stably inserted into the object to be grabbed. Regularly check the wear of the conical fixing needle 3 to ensure that it remains in the best working condition.

[0096] The conical fixing needle 3 can be quickly inserted into the object to be positioned, improving positioning efficiency and operational convenience. This is particularly suitable for applications that require rapid positioning and penetration.

[0097] In this embodiment, the vacuum channel 5 is composed of two arc-shaped channels, which are symmetrically distributed on both sides of the fixing needle 3.

[0098] The two symmetric arc-shaped channels can be evenly distributed on the sealed space to ensure that the negative pressure of the sealed space is the same.

[0099] Specifically, the vacuum channel 5 is composed of two arc-shaped channels, which are symmetrically distributed on both sides of the fixing needle 3. This design helps to achieve uniform distribution of negative pressure.

[0100] The symmetric distribution of the two arc-shaped channels can ensure the uniform distribution of negative pressure in the sealed space, as they provide the same airflow path and suction force around the fixing needle 3. The uniform distribution of negative pressure ensures that the arc-shaped channel design is symmetrically distributed, which is crucial for maintaining the suction performance of the patch machine suction nozzle.

[0101] The arc-shaped channels are manufactured using precise machining techniques to ensure accurate shape and size for symmetric distribution.

[0102] During assembly, the positions of the two arc-shaped channels are carefully adjusted to ensure that they are symmetrically distributed on both sides of the fixing needle 3 and aligned with the axis direction of the fixing needle 3.

[0103] The distribution of negative pressure of the two arc-shaped channels is tested in actual operation to ensure that they can be evenly distributed on the sealed space.

[0104] The design of the two arc-shaped channels symmetrically distributed on both sides of the fixing needle 3 can effectively ensure that the negative pressure of the sealed space is the same, thereby improving the suction efficiency and stability of the patch machine suction nozzle. This design helps to maintain the uniform performance of the patch machine suction nozzle when sucking objects, avoiding the problem of unstable suction or object displacement caused by uneven negative pressure.

[0105] Example 2

[0106] This embodiment discloses a pick-and-place machine nozzle for surface mount technology (SMT) applications. Specifically, the pick-and-place machine nozzle grips a mounting block 8.

[0107] like Figure 1 As shown, the fixing pin 31 of the traditional pick-and-place machine nozzle is too long, causing it to pick up solder paste from the holder 8, which can clog the vacuum hole and reduce the pick-up rate. The traditional pick-and-place machine nozzle only has the fixing pin 3 for positioning, and its pick-up performance is good only when the holder 8 is in close contact with the vacuum hole on the pick-and-place machine nozzle. For holders 8 with large errors, the pick-up rate is not high.

[0108] The novel pick-and-place machine nozzle head of this example consists of a fixing pin 3, a positioning sleeve 2, a connecting part 1, and a vacuum channel 5. The fixing pin 3 is located at the center of the pick-and-place machine nozzle head. The positioning sleeve 2 is slightly longer than the fixing pin 3, allowing it to enclose and protect the fixing pin 3. The vacuum suction port is located on the bottom surface of the pick-and-place machine nozzle head, forming two crescent shapes surrounding the fixing pin 3. When the bottom surface of the pick-and-place machine nozzle head is in contact with the upper surface of the mounting base 8, a vacuum is drawn, creating a narrow space with the positioning sleeve 2, thus enhancing its suction power.

[0109] Its main working principle is as follows: When the pick-and-place machine's nozzle picks up a workpiece, the fixing pin 3 is first inserted into the center hole of the mount 8. When the surface of the mount 8 is in close contact with the inner wall of the rubber suction head, a vacuum is drawn, and under atmospheric pressure, the connecting part 1 is forced to hold the mount 8 tightly. Due to the addition of the positioning sleeve 2, there is a narrow space between the connecting part 1, the positioning sleeve 2, and the workpiece surface. When a vacuum is drawn, the air pressure in this narrow space is low, and under atmospheric pressure, it exerts an upward force on the mount 8, allowing suction to be generated even when the mount 8 is not in close contact with the inner wall of the pick-and-place machine's nozzle, thus enhancing the suction force of the pick-and-place machine's nozzle. When the solder joint is reached, the vacuum is released (the vacuum is removed), and the workpiece automatically falls to the solder joint position.

[0110] Compared to traditional pick-and-place machine nozzles, the fixing pin 3 of the nozzle in this embodiment is smaller, about 80% of the original size. This effectively avoids the problem of solder paste clogging the vacuum suction hole and causing low nozzle pick-up rate when the fixing pin 3 contacts the solder paste during actual production. By comparing the dimensional tolerance of the solder paste on the holder 8, and ensuring that the size of the pick-and-place machine nozzle does not interfere with other chips, the inner diameter of the positioning housing 2 can be determined to be 2-5mm, preferably 2.2mm. This allows the workpiece to smoothly enter the positioning housing 2, and the positioning housing 2, the workpiece surface, and the fixing pin 3 form a narrow enclosed area, which increases the suction force of the pick-and-place head and improves the pick-and-place head gripping rate.

[0111] The fixed needle 3 is reduced in size to prevent the fixed needle 3 from being too long to cause the fixed needle 3 to adhere to the solder paste, thereby causing the solder paste to block the vacuum suction hole during the operation of the suction nozzle grabbing the abutment 8. The fixed needle 3 is conical, which can make the fixed needle 3 insert into the workpiece more quickly, thereby playing a role in quick positioning.

[0112] A positioning sleeve 2 is added outside the suction nozzle, and the length of the positioning sleeve 2 is slightly longer than that of the fixed needle 3, thereby playing a role in protecting the fixed needle 3. The inner diameter of the positioning sleeve 2 is slightly larger than that of the abutment 8, so that the abutment 8 can smoothly enter the positioning sleeve 2. During the suction process, the positioning sleeve 2, the upper surface of the workpiece, and the fixed needle 3 can form a closed space, which is more conducive to the suction nozzle sucking the abutment 8.

[0113] Embodiment 3

[0114] The difference between this embodiment and embodiment 1 is that the positioning sleeve 2 is transformed into a circular truncated cone space 18, as shown in Figure 7 which can make the misaligned workpiece slide to the correct position by relying on the outer wall.

[0115] Specifically, the positioning sleeve 2 is designed as a circular truncated cone space 18, that is, a trapezoidal structure with a top diameter larger than a bottom diameter. This design allows misaligned workpieces to slide to the correct position by relying on the outer wall of the positioning sleeve 2.

[0116] The circular truncated cone-shaped positioning sleeve 2 can serve as a guide device to help misaligned workpieces slide along the inclined surface of the circular truncated cone and be positioned in the correct position.

[0117] Through the design of the circular truncated cone-shaped positioning sleeve 2, misalignment of workpieces within a certain range can be automatically corrected, improving the accuracy and reliability of workpiece positioning.

[0118] Using the self-positioning function of the circular truncated cone-shaped positioning sleeve 2 can reduce the dependence on precise manual operation and simplify the assembly process.

[0119] Manufacturing and processing:

[0120] Precise machining techniques are used to manufacture the circular truncated cone-shaped positioning sleeve 2 to ensure its shape and size are accurate for effective workpiece guiding and positioning.

[0121] During assembly, the position and angle of the circular truncated cone-shaped positioning sleeve 2 are carefully adjusted to ensure it can effectively guide misaligned workpieces. The workpiece guiding and positioning performance of the circular truncated cone-shaped positioning sleeve 2 is tested in actual operation to ensure it can accurately guide misaligned workpieces to the correct position.

[0122] Based on the results of the operation test, the design of the circular truncated cone-shaped positioning sleeve 2 is optimized to improve its efficiency and accuracy in guiding and positioning workpieces.

[0123] The circular-truncated-cone-shaped positioning sleeve 2 can effectively improve the positioning accuracy of the workpiece, reduce the operation complexity, and improve the automation degree of the entire system. This design is particularly suitable for application scenarios that require high-precision positioning and automated operation.

[0124] The relative arrangement of parts and steps, numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the application unless otherwise specifically stated. At the same time, it should be understood that the sizes of the various parts shown in the drawings are not drawn in accordance with the actual proportional relationship for the convenience of description. The techniques, methods, and devices known to those skilled in the relevant art can not be discussed in detail, but should be considered as part of the authorized description under appropriate circumstances. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary and not as a limitation. Therefore, other examples of exemplary embodiments can have different values. It should be noted that similar reference numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0125] In addition, it should be noted that the use of the words "first", "second", and the like to qualify parts is only for the convenience of distinguishing the corresponding parts, and the above words have no special meaning unless otherwise stated, and therefore cannot be understood as limiting the scope of protection of the present application.

[0126] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A pick-and-place machine nozzle, characterized in that, include: Connecting part, positioning sleeve and fixing pin, One end of the positioning sleeve is fixedly connected to the connecting part, and the other end of the positioning sleeve is an open end; The fixing pin is located inside the positioning housing, and the fixing pin points to the opening end of the positioning housing; The connecting part has a vacuum channel that extends through the positioning shell. When an object is adsorbed, the object to be grasped enters the positioning shell and forms a sealed space with the positioning shell.

2. The pick-and-place machine nozzle head according to claim 1, characterized in that, The inner wall of the positioning shell arches towards the center of the positioning shell to form a raised wall surface, which can abut against an object inside the positioning shell.

3. The pick-and-place machine nozzle head according to claim 1, characterized in that, The internal space of the positioning shell is configured as a frustum, and the bottom area of ​​the frustum gradually increases on the side away from the connecting part.

4. The pick-and-place machine nozzle head according to claim 1, characterized in that, The object to be grabbed is a pier.

5. The pick-and-place machine nozzle head according to claim 1, characterized in that, The axis of the fixing pin is in the same direction as the axis of the positioning sleeve.

6. The pick-and-place machine nozzle head according to claim 5, characterized in that, The length of the fixing pin is less than the length of the positioning shell.

7. The pick-and-place machine nozzle head according to claim 6, characterized in that, The length of the fixing pin is 3 / 4 to 4 / 5 of the length of the positioning shell.

8. The pick-and-place machine nozzle head according to claim 7, characterized in that, The inner diameter of the positioning sleeve is 2-5 mm.

9. The pick-and-place machine nozzle head according to claim 1, characterized in that, The fixing pin is a tapered fixing pin.

10. The pick-and-place machine nozzle head according to claim 1, characterized in that, The vacuum channel is composed of two arc-shaped channels, which are symmetrically distributed on both sides of the fixing pin.

Images