Vacuum material taking clamp and electronic manufacturing equipment

Abstract

The utility model discloses a vacuum material taking clamp and electronic manufacturing equipment, the vacuum material taking clamp comprises a suction nozzle, a base, a piston, a clamping jaw assembly and an elastic reset piece, the suction nozzle is provided with an air suction hole, the base is fixedly connected with the suction nozzle and is provided with a piston hole communicated with the air suction hole, the piston is matched in the piston hole in a sliding mode, and the clamping jaw assembly is arranged on the base. The clamping jaw assembly comprises at least two clamping jaws hinged to the base, the top ends of the clamping jaws are movably matched with the bottom end of the piston, the bottom ends of the clamping jaws are used for clamping materials, the elastic reset piece is matched between the piston and the suction nozzle, and the piston overcomes the elasticity of the elastic reset piece to slide in the piston hole under the action of negative pressure formed by the suction hole. The clamping jaw is driven to rotate so as to grab materials; the vacuum material taking clamp is simple in structure, high in reliability and suitable for special-shaped materials.

Description

Technical Field

[0001] This utility model belongs to the field of electronic manufacturing equipment technology. Specifically, it relates to a vacuum material handling fixture and an electronic manufacturing equipment having the above-mentioned vacuum material handling fixture. Background Technology

[0002] In the fields of surface mount technology and automated assembly of electronic components, vacuum nozzles serve as core gripping tools, and their performance directly impacts production efficiency and yield. For standard packaged electronic components, vacuum nozzles, through standardized design, can achieve stable adsorption and high-precision placement.

[0003] However, as electronic products become increasingly miniaturized and irregularly shaped, many irregularly shaped electronic components (such as transformers, connectors, and customized chipsets) present technical bottlenecks for traditional vacuum nozzles due to their irregular geometry, uneven surface curvature, and complex pin distribution. Irregularly shaped electronic components often have structural grooves, protrusions, or discontinuous planes on their surfaces, making it impossible for traditional circular or rectangular vacuum nozzles to form an effective seal with the contact surface. This leads to vacuum leakage, preventing the machine mounting of irregularly shaped electronic components, or increasing the rejection rate and defect rate even when mounting is possible. This necessitates more frequent manual intervention, hindering the automated production efficiency of high-density, irregularly shaped electronic products. Utility Model Content

[0004] The purpose of this invention is to provide a vacuum material handling fixture and electronic manufacturing equipment, which solves the technical problem that vacuum nozzles in the prior art are unable to grasp irregular electronic components.

[0005] To achieve the above-mentioned technical objectives, the present invention adopts the following technical solution:

[0006] According to a first aspect of the present invention, a vacuum material handling fixture is provided, comprising:

[0007] The nozzle is equipped with an air intake hole;

[0008] A base is fixedly connected to the suction nozzle, and the base is provided with a piston hole that communicates with the suction port;

[0009] A piston that is slidably fitted in the piston bore;

[0010] A gripper assembly includes at least two grippers, each gripper being hinged to the base via a pivot shaft. The top ends of the grippers are movably engaged with the bottom ends of the pistons, and the bottom ends of the grippers are used to grip materials.

[0011] A resilient reset element, which fits between the piston and the suction nozzle;

[0012] The piston is configured to slide in the piston hole under the negative pressure formed by the air intake hole, overcoming the elastic force of the elastic reset member, and driving the gripper to rotate around the corresponding shaft.

[0013] In some embodiments of this utility model, the piston includes a sliding part and a mating part;

[0014] The sliding part fits into the piston hole, with its top end near the air intake hole and its bottom end extending out of the piston hole;

[0015] The mating part is fixedly connected to the bottom end of the sliding part and is located between the top ends of at least two of the grippers;

[0016] The tips of at least two of the grippers are respectively formed with structural grooves that mate with the mating parts, and there is a movable gap between the mating parts and the inner wall of the corresponding structural grooves.

[0017] In some embodiments of this utility model, there are two grippers, which are located on opposite sides of the mating part. The mating part is constructed as a cylinder perpendicular to the sliding part, and the inner wall of the structural groove forms an arc surface structure.

[0018] In some embodiments of this utility model, the bottom of the base forms a mounting groove, the bottom end of the piston hole communicates with the mounting groove, and the top ends of at least two of the grippers are located in the mounting groove.

[0019] In some embodiments of this utility model, a guide elongated hole is provided on the side wall of the mounting groove, the length direction of the guide elongated hole is consistent with the extension direction of the piston hole, and the end of the mating part is slidably fitted in the guide elongated hole.

[0020] In some embodiments of this utility model, a vacuum groove is formed on the top of the base, and the vacuum groove is connected to the air intake hole and the piston hole respectively;

[0021] The piston is fixedly connected to a top plate, which fits in the vacuum groove and moves in the vacuum groove under the negative pressure formed by the suction hole.

[0022] In some embodiments of this invention, the elastic reset element is a compression spring, with one end of the compression spring fitting inside the intake hole and the other end abutting against the top plate. In some embodiments of this invention, the gripper has an L-shaped structure, and the rotating shaft is connected near the top end of the gripper, with the axis of the rotating shaft perpendicular to the extending direction of the piston hole.

[0023] In some embodiments of this utility model, the nozzle is provided with a connecting plate, and the connecting plate and the base are fixedly connected by fasteners.

[0024] According to a second aspect of the present invention, an electronic manufacturing apparatus is also provided, including the above-mentioned vacuum pick-up fixture, and further including an air passage, wherein the air passage is connected to the suction port of the suction nozzle of the vacuum pick-up fixture.

[0025] Compared with the prior art, the advantages and positive effects of this utility model are:

[0026] This utility model's vacuum material handling fixture connects a base to a suction nozzle, installs a piston in a piston hole in the base, and hinges a gripping assembly that cooperates with the piston on the base. An elastic reset member is set between the piston and the suction nozzle. The negative pressure generated by the suction nozzle controls the piston's movement, thereby driving the gripper assembly to grasp the material. Under the negative pressure formed by the suction hole, the piston overcomes the elastic force of the elastic reset member and slides along the piston hole, driving the gripper to rotate, thus grasping the material. The elastic reset member can drive the piston to reset the gripping assembly. The vacuum material handling fixture has a simple structure and high reliability. It uses a gripper gripping method instead of vacuum adsorption to grasp materials, and is suitable for irregularly shaped materials with uneven surfaces that are difficult for the vacuum suction nozzle to adsorb.

[0027] Other features and advantages of this utility model will become clearer after reading the detailed embodiments of this utility model in conjunction with the accompanying drawings. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of the structure of one embodiment of the vacuum material handling fixture proposed in this utility model;

[0030] Figure 2 This is an exploded view of one embodiment of the vacuum material handling fixture proposed in this utility model;

[0031] Figure 3 This is a cross-sectional view of an embodiment of the vacuum material handling fixture proposed in this utility model in its open state;

[0032] Figure 4 This is a cross-sectional view of the object-grabbing state of an embodiment of the vacuum material-grabbing fixture proposed in this utility model;

[0033] Figure 5This is a schematic diagram of the piston and gripper assembly of one embodiment of the vacuum material handling fixture proposed in this utility model;

[0034] Figure 6 This is a schematic diagram of the gripper structure of one embodiment of the vacuum material handling fixture proposed in this utility model;

[0035] Figure 7 This is a schematic diagram of the base structure of an embodiment of the vacuum material handling fixture proposed in this utility model.

[0036] The reference numerals and their corresponding component names in the figure are as follows:

[0037] 1. Suction nozzle; 11. Suction port;

[0038] 2. Base; 21. Piston hole; 22. Vacuum groove; 23. Mounting groove; 24. Intermediate plate; 25. Side plate; 26. Guide elongated hole;

[0039] 3. Piston; 31. Sliding part; 32. Mating part; 33. Top plate;

[0040] 331. Groove;

[0041] 4. Gripper assembly; 41. Gripper; 42. Rotary shaft;

[0042] 411. Structural groove; 412. Notch; 413. Clamping claw;

[0043] 5. Elastic reset component;

[0044] 6. Connecting plate. Detailed Implementation

[0045] 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 some embodiments 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.

[0046] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "horizontal", "vertical", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0047] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0048] In the description of the implementation, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0049] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

[0050] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0051] Wherever possible, the various aspects and features described and illustrated in this specification may be applied individually, and these individual aspects may serve as the subject matter of a divisional application.

[0052] Figures 1 to 7 This illustration shows an embodiment of a vacuum material handling fixture provided by this invention. The vacuum material handling fixture is used to grip materials and can be applied to pick-and-place machines or other electronic manufacturing equipment for gripping electronic components such as transformers and connectors. The vacuum material handling fixture can also be applied in other industrial manufacturing, logistics and warehousing fields for gripping other materials.

[0053] The vacuum material handling fixture includes a suction nozzle 1, a base 2, a piston 3, a gripper assembly 4, and an elastic reset component 5.

[0054] The nozzle 1 is provided with an air intake hole 11. The nozzle 1 is used to connect to the air passage (not shown in the figure), and negative pressure can be formed in the air intake hole 11 through the air passage.

[0055] The base 2 is fixedly connected to the nozzle 1. The base 2 is provided with a piston hole 21, which is connected to the suction hole 11 of the nozzle 1.

[0056] The piston 3 fits into the piston bore 21, and the piston 3 can reciprocate along the piston bore 21. The elastic reset member 5 fits between the piston 3 and the suction nozzle 1.

[0057] The gripper assembly 4 includes at least two grippers 41, which are respectively hinged to the base 2 via a pivot 42.

[0058] To ensure clarity and conciseness in this specification, the end of the base 2, piston 3, and gripper 41 closest to the suction nozzle 1 is defined as the top end, and the end furthest from the suction nozzle 1 is defined as the bottom end. The top end of piston 3 is close to the suction port 11, and the top end of gripper 41 is configured to movably engage with the bottom end of piston 3. The bottom end of gripper 41 is used to grip material. Piston 3 is configured to slide in piston hole 21 under the negative pressure generated by suction port 11, overcoming the elastic force of elastic reset member 5, and driving gripper 41 to rotate around the corresponding pivot 42.

[0059] Specifically, the suction hole 11 is a through hole, the top of the suction hole 11 is used to connect to the air passage, and the bottom of the suction hole 11 is located at the bottom of the nozzle 1. The base 2 is fixedly connected to the bottom of the nozzle 1. The base 2 and the nozzle 1 can be fixedly connected by means of bonding, snap-fitting, fastener connection, integral molding, etc.

[0060] refer to Figure 3 From the perspective of the initial state, the elastic reset member 5 restricts the position of the piston 3, keeping the gripper assembly 4 in the open state.

[0061] refer to Figure 4 From the perspective of the air passage, after the air passage is opened, a negative pressure is generated in the air intake hole 11. Under the push of atmospheric pressure, the piston 3 slides upward from the initial position along the piston hole 21, squeezing the elastic reset member 5 and driving the top of at least two grippers 41 to move upward, so that the bottom of at least two grippers 41 retracts towards the middle, rotating from the open state to the gripping state to grip the material.

[0062] After the air passage is closed, the negative pressure in the air intake port 11 fails, and the elastic reset member 5 drives the piston 3 to slide downward under the action of elastic force, returning to the initial position, and driving the gripper assembly 4 to return from the gripping state to the open state.

[0063] The vacuum material handling fixture uses negative pressure to control the movement of piston 3, which drives the gripper assembly 4 to grasp materials. It has a simple structure and high reliability. It uses gripper gripping instead of vacuum adsorption to grasp materials, and can be used for irregularly shaped materials with uneven surfaces that are difficult for vacuum nozzles to adsorb.

[0064] In some embodiments of this utility model, such as Figure 2 , Figure 3 and Figure 4 As shown, the piston 3 includes a sliding part 31 and a mating part 32. The sliding part 31 is fitted in the piston hole 21 and slides along the piston hole 21. The top end of the sliding part 31 is close to the intake hole 11, and the bottom end extends out of the piston hole 21. The mating part 32 is fixedly connected to the bottom end of the sliding part 31 and is located between the top ends of at least two grippers 41.

[0065] The mating part 32 is used to drive at least two grippers 41 to rotate simultaneously. The top ends of the at least two grippers 41 are respectively formed with structural grooves 411 that mate with the mating part 32, and there is a movable gap between the mating part 32 and the inner wall of the corresponding structural groove 411.

[0066] When the piston 3 moves linearly upward along the piston hole 21, the surface of the mating part 32 abuts against the inner wall of the structural groove 411, applying force to the top of at least two grippers 41. Since there is a movable gap between the mating part 32 and the structural groove 411, the top of the grippers 41 can rotate around the pivot 42 and thus make arc movements.

[0067] In one specific implementation, such as Figure 5 and Figure 6 As shown, there are two grippers 41, located on opposite sides of the mating part 32. The mating part 32 is constructed as a cylinder perpendicular to the sliding part 31, with curved sides. The inner wall of the structural groove 411 forms a curved structure to adapt to the sides of the mating part 32. The structural grooves 411 of the two grippers 41 engage with the curved surfaces on opposite sides of the mating part 32, with a clearance for movement. The engagement of the mating part 32 with the curved surfaces of the structural grooves 411 makes the rotation of the grippers 41 smoother and helps reduce wear.

[0068] In detail, the top of the structural groove 411 is provided with a notch 412, which is used to make way for the sliding part 31. Claws 413 are formed on opposite sides of the notch 412, and the claws 413 abut against the mating part 32. When the mating part 32 moves upward, it applies force to the claws 413, thereby pulling the claws 41 to rotate around the pivot 42.

[0069] In some embodiments of this utility model, such as Figure 2 , Figure 3 and Figure 4 As shown, a vacuum groove 22 is formed on the top of the base 2. The vacuum groove 22 is located between the suction hole 11 and the piston hole 21, and is connected to the suction hole 11 and the piston hole 21 respectively.

[0070] A top plate 33 is fixedly connected to the top of the piston 3. The top plate 33 fits in the vacuum groove 22 and moves in the vacuum groove 22 under the negative pressure formed by the suction port 11. The opening edge of the vacuum groove 22 is tightly fitted with the bottom of the suction nozzle 1 to avoid gaps that could lead to negative pressure loss.

[0071] A stepped surface is formed between the bottom of the vacuum groove 22 and the top of the piston hole 21, such as... Figure 3 As shown, the top plate 33 can abut against the stepped surface, limiting the downward sliding position of the piston 3. Figure 4 As shown, when a negative pressure is generated in the suction port 11, the piston 3 slides upward and the top plate 33 moves upward in the vacuum groove 22 until it abuts against the bottom surface of the suction nozzle 1.

[0072] The sliding part 31, the mating part 32 and the top plate 33 of the piston 3 can be fixedly connected by means of bonding, snap-fitting, screw connection, integral molding or other methods.

[0073] The elastic reset element 5 can be selected from elastic elements such as compression springs, spring washers, and spring sheets. The bottom end of the elastic reset element 5 mates with the top plate 33, and the top end mates with the suction nozzle 1.

[0074] In one specific embodiment, the elastic reset element 5 is a compression spring, with one end fitting into the suction hole 11 and the other end abutting against the top plate 33. When the piston 3 slides upward under the negative pressure of the suction hole 11, the top plate 33 compresses the compression spring above. After the negative pressure fails, the compression spring pushes the top plate 33 downward, causing the piston 3 to reset.

[0075] Specifically, a compression spring is fitted inside the air intake hole 11, and a limiting edge is formed inside the air intake hole 11. The top end of the compression spring abuts against the limiting edge, and the bottom end extends into the vacuum groove 22 and abuts against the top plate 33.

[0076] Furthermore, a groove 331 can be provided in the middle of the top plate 33, and the bottom end of the elastic reset member 5 can be inserted into the groove 331, thereby restricting the position of the elastic reset member 5.

[0077] By utilizing the space of the suction hole 11 to install a compression spring, the structure of the vacuum material handling fixture is simplified and compact, which is conducive to miniaturization design.

[0078] In some embodiments, a mounting groove 23 is formed at the bottom of the base 2, the bottom end of the piston hole 21 communicates with the mounting groove 23, and the top ends of at least two grippers 41 are located in the mounting groove 23. The side wall of the mounting groove 23 is provided with a through hole for mounting the rotating shaft 42.

[0079] Specifically, the base 2 includes a middle plate 24 and two side plates 25, which are spaced apart and connected to the bottom of the middle plate 24. A piston hole 21 and a vacuum groove 22 are provided on the middle plate 24, and a rotating shaft 42 is connected to the side plates 25. A mounting groove 23 is formed between the middle plate 24 and the two side plates 25, and the mounting groove 23 is a through groove.

[0080] refer to Figure 1 From this perspective, the base 2 has openings for mounting grooves 23 on its left and right sides. Two grippers 41 are provided and distributed on the base 2. The two grippers 41 extend from the corresponding openings of the mounting grooves 23 on the base 2.

[0081] In one embodiment, the gripper 41 has an L-shaped structure, and the rotating shaft 42 is connected near the top of the gripper 41. The axis of the rotating shaft 42 is perpendicular to the extension direction of the piston hole 21. The gripper 41 is provided with a through hole for the rotating shaft 42 to pass through.

[0082] In one implementation, such as Figure 2 and Figure 7 As shown, a guide hole 26 is provided on the side wall of the mounting groove 23. The length direction of the guide hole 26 is consistent with the extension direction of the piston hole 21. The end of the mating part 32 is slidably fitted in the guide hole 26. The guide hole 26 is used to guide and limit the mating part 32.

[0083] Specifically, the guide elongated hole 26 is provided on the side plate 25 of the base 2. The base 2 can be provided with guide elongated holes 26 on the two side plates 25 respectively, and the two ends of the mating part 32 are respectively mated in the two guide elongated holes 26. The guide elongated hole 26 can be provided as an oblong hole.

[0084] In some embodiments, a connecting plate 6 is provided on the nozzle 1, and the connecting plate 6 and the base 2 are fixedly connected by fasteners. Specifically, the connecting plate 6 is located at the bottom of the nozzle 1, and the connecting plate 6 can be detachably fixedly connected to the top of the base 2 by at least one fastener. The fastener can be a screw, bolt and nut assembly, etc. The connecting plate 6 and the nozzle 1 can be fixedly connected by means of bonding, snap-fitting, screw connection, integral molding, etc.

[0085] The base 2, piston 3, and gripper assembly 4 can be disassembled as a whole. The elastic reset component 5 can be easily disassembled and replaced after the fasteners between the connecting plate 6 and the base 2 are removed.

[0086] The shape, size, and spacing of at least two grippers 41 can be designed according to the materials to be gripped. For irregularly shaped materials of different shapes, a suitable vacuum gripper with grippers 41 can be selected.

[0087] This utility model also provides an electronic manufacturing equipment, including the aforementioned vacuum pick-up fixture, and further including an air passage connected to the suction port 11 of the suction nozzle 1 of the vacuum pick-up fixture. For example, the electronic manufacturing equipment may be a pick-and-place machine, a component insertion machine, a soldering machine, etc.

[0088] The nozzle 1 and the air circuit interface can be detachably connected via plug-in, threaded connection, or clamp connection. Depending on the type of material to be gripped, technicians can choose to install a regular vacuum nozzle on the air circuit interface, or install the vacuum material handling fixture provided by this utility model, allowing for flexible use.

[0089] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions claimed by this utility model.

Claims

1. A vacuum material handling fixture, characterized in that, include: The nozzle is equipped with an air intake hole; A base is fixedly connected to the suction nozzle, and the base is provided with a piston hole that communicates with the suction port; A piston that is slidably fitted in the piston bore; A gripper assembly includes at least two grippers, each gripper being hinged to the base via a pivot shaft. The top ends of the grippers are movably engaged with the bottom ends of the pistons, and the bottom ends of the grippers are used to grip materials. A resilient reset element, which fits between the piston and the suction nozzle; The piston is configured to slide in the piston hole under the negative pressure formed by the air intake hole, overcoming the elastic force of the elastic reset member, and driving the gripper to rotate around the corresponding shaft.

2. The vacuum material handling fixture according to claim 1, characterized in that, The piston includes a sliding part and a mating part; The sliding part fits into the piston hole, with its top end near the air intake hole and its bottom end extending out of the piston hole; The mating part is fixedly connected to the bottom end of the sliding part and is located between the top ends of at least two of the grippers; The tips of at least two of the grippers are respectively formed with structural grooves that mate with the mating parts, and there is a movable gap between the mating parts and the inner wall of the corresponding structural grooves.

3. The vacuum material handling fixture according to claim 2, characterized in that, The number of grippers is two, and they are located on opposite sides of the mating part. The mating part is constructed as a cylinder perpendicular to the sliding part, and the inner wall of the structural groove forms an arc surface structure.

4. The vacuum material handling fixture according to claim 2, characterized in that, The base has a mounting groove at its bottom, the bottom end of the piston hole is connected to the mounting groove, and the top ends of at least two of the grippers are located in the mounting groove.

5. The vacuum material handling fixture according to claim 4, characterized in that, A guide hole is provided on the side wall of the mounting groove. The length direction of the guide hole is consistent with the extension direction of the piston hole. The end of the mating part is slidably fitted in the guide hole.

6. The vacuum material handling fixture according to claim 1, characterized in that, A vacuum groove is formed on the top of the base, and the vacuum groove is connected to the air intake hole and the piston hole respectively; The piston is fixedly connected to a top plate, which fits in the vacuum groove and moves in the vacuum groove under the negative pressure formed by the suction hole.

7. The vacuum material handling fixture according to claim 6, characterized in that, The elastic reset element is a compression spring, with one end of the compression spring fitting inside the air intake hole and the other end abutting against the top plate.

8. The vacuum material handling fixture according to claim 1, characterized in that, The gripper has an L-shaped structure, and the rotating shaft is connected near the top of the gripper. The axis of the rotating shaft is perpendicular to the extension direction of the piston hole.

9. The vacuum material handling fixture according to any one of claims 1 to 8, characterized in that, The nozzle is provided with a connecting plate, and the connecting plate and the base are fixedly connected by fasteners.

10. An electronic manufacturing equipment, characterized in that, The vacuum material handling fixture according to any one of claims 1 to 9 further includes an air passage, which is connected to the suction port of the suction nozzle of the vacuum material handling fixture.

Images