Self-centering chip mounting head and chip mounter

Abstract

The utility model belongs to the technical field of chip mounting, and particularly relates to a self-centering chip mounting head and a chip mounter, the device comprises a support frame, a mounting shaft is inserted on the support frame, the side wall of the mounting shaft is hinged with at least one pair of clamping claws, and one end of each clamping claw is turned outwards; the driving part comprises a driving air cylinder and a driving ring, the driving air cylinder is installed on the supporting frame, the driving ring is arranged on the installation shaft in a sleeving mode, and an inner hole of the driving ring is attached to the side wall of the installation shaft; the driving ring is connected with a piston rod of the driving air cylinder through a driving piece so that the driving ring can press the outwards-turned ends of the clamping claws downwards and drive the clamping claws to rotate to clamp elements. In short, the driving air cylinder drives the driving ring to press the clamping claws downwards, so that the clamping claws clamp synchronously, centering of the element is completed, positioning is directly carried out after one-time grabbing, and the mounting efficiency is improved.

Description

Technical Field

[0001] This utility model belongs to the field of chip mounting technology, and in particular relates to a self-centering chip mounter and a chip mounter. Background Technology

[0002] Currently, with the miniaturization of electronic components, most circuit boards use surface mount components. The pick-and-place machine uses a control system to control the movement of the pick-and-place head, picks up components from the feeder through the pick-and-place head nozzle, and automatically places the components into the designated positions on the circuit board, thus completing the automatic placement of components. However, when the existing pick-and-place head picks up components, it first picks up the components from the feeder, then transfers the components to the positioning fixture, and after positioning, it picks them up again to complete the placement, which is inefficient.

[0003] Therefore, how to avoid the inefficiency caused by components needing to be gripped and positioned by a positioning fixture is a technical problem that urgently needs to be solved in this field.

[0004] It should be noted that the information disclosed in this background section is only for understanding the background technology of the present application concept, and therefore, the above description is not considered to constitute prior art information. Utility Model Content

[0005] This disclosure provides at least one self-centering placement head and a placement machine.

[0006] In a first aspect, embodiments of this disclosure provide a self-centering patch head, comprising: a support frame on which a mounting shaft is inserted, wherein at least one pair of clamping claws are hinged to the side wall of the mounting shaft, one end of each clamping claw being folded outward; a drive unit comprising a drive cylinder and a drive ring, wherein the drive cylinder is mounted on the support frame, the drive ring is sleeved on the mounting shaft, and the inner hole of the drive ring is fitted against the side wall of the mounting shaft; and the drive ring is connected to the piston rod of the drive cylinder via a drive component, such that the drive ring presses down on the folded end of the clamping claw, thereby causing the clamping claw to rotate and clamp the element.

[0007] In one optional embodiment, the driving component is a "C"-shaped bracket, the closed end of which is connected to the piston rod of the driving cylinder, the open end of the driving component is hinged to the side wall of the mounting shaft, and the open end of the driving component is provided with a driving block. When the piston rod of the driving cylinder slides, it drives the driving component to rotate, so that the driving block moves away from the hinge axis of the driving component and presses down on the driving ring.

[0008] In one alternative embodiment, the end of the drive block is provided with a transition arc.

[0009] In one alternative embodiment, the drive block is inclined toward the closed end of the drive member so that when the piston rod of the drive cylinder extends to its limit, the vertical distance between the drive block and the hinge axis of the drive member is maximized.

[0010] In one optional embodiment, the side wall of the mounting shaft is provided with a mounting groove, and the clamping claw is hinged within the mounting groove.

[0011] In one alternative embodiment, the gripping end of the gripping claw is provided with a flexible block.

[0012] In one alternative embodiment, the end of the mounting shaft is provided with a retaining surface to retain the element, and the sidewall of the flexible block is inclined outward so that the flexible block is opened up as the element contacts the retaining surface.

[0013] In one optional embodiment, a through hole is provided in the mounting shaft, one end of the through hole is connected to an air source, and the other end of the through hole passes through the abutment surface to complete the auxiliary suction / placement of the component.

[0014] In one alternative embodiment, the clamping claws are provided in two pairs and are perpendicular to each other to clamp the long and short edges of the element.

[0015] Secondly, this disclosure also provides a chip mounter, including: a lifting pair, the lifting end of which is provided with a lifting plate; the self-centering chip mounter described above, wherein the support frame is disposed on the side wall of the lifting plate.

[0016] The beneficial effects of this utility model are that the self-centering placement head and placement machine use the drive ring to press down the clamping claws, so that the clamping claws are clamped synchronously, and the components are centered. After one gripping, the positioning is performed directly, which improves the placement efficiency.

[0017] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention are realized and obtained through the structures particularly pointed out in the description, claims, and drawings.

[0018] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0019] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art 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 from these drawings without creative effort.

[0020] Figure 1 A perspective view of a chip mounter provided in an embodiment of this disclosure;

[0021] Figure 2 A perspective view of a self-centering patch head provided in an embodiment of this disclosure;

[0022] Figure 3 This is a schematic diagram of the installation of a support shaft and a drive component provided in an embodiment of this disclosure.

[0023] In the picture:

[0024] 1. Support frame; 11. Mounting shaft; 11a. Mounting groove; 11b. Bearing surface; 11c. Through hole; 12. Clamping claw; 12a. Flexible block;

[0025] 2. Drive unit; 21. Drive cylinder; 22. Drive ring; 23. Drive component; 23a. Drive block; 23b. Transition arc;

[0026] 3. Lifting pair; 31. Lifting plate. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0028] In this document, when it is mentioned that a first component is located on a second component, this can mean that the first component can be directly formed on the second component, or that a third component can be inserted between the first and second components. Furthermore, in the accompanying drawings, the thickness of the components may be exaggerated or reduced for the purpose of effectively describing the technical content.

[0029] The terminology used herein is for the purpose of describing specific exemplary configurations only and is not intended to be limiting. As used herein, the singular articles “a,” “an,” and “the” may also be intended to include plural forms unless otherwise clearly stated herein. The terms “comprising,” “including,” and “having” are inclusive and thus specify the presence of features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein should not be construed as requiring them to be performed in the specific order discussed or shown, unless specifically identified as such. Additional or alternative steps may be employed.

[0030] As used herein, the phrases “in one embodiment,” “according to one embodiment,” “in some embodiments,” etc., generally refer to the fact that a particular feature, structure, or characteristic following the phrase can be included in at least one embodiment of this disclosure. Therefore, a particular feature, structure, or characteristic can be included in more than one embodiment of this disclosure, such that these phrases do not necessarily refer to the same embodiment. As used herein, the terms “example,” “exemplary,” etc., are used to “serve as an example, instance, or illustration.” Any implementation, aspect, or design described herein as “example” or “exemplary” is not necessarily to be construed as preferred or superior to other implementations, aspects, or designs. Rather, the use of the terms “example,” “exemplary,” etc., is intended to present concepts in a specific manner.

[0031] Research has revealed that the existing technology cannot locate components after a single gripping, requiring an additional positioning process. This is the problem and objective of this invention.

[0032] Based on the above research, this disclosure provides a self-centering placement head and a placement machine, which improves the efficiency of component placement by automatically centering components through synchronously inward clamping claws.

[0033] The shortcomings of the above solutions are the result of the utility model inventor's practice and careful research. Therefore, the discovery process of the above problems and the solutions proposed in this disclosure should be considered as contributions made by the utility model inventor to this disclosure.

[0034] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0035] The following detailed description, with reference to the accompanying drawings, describes some embodiments of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0036] See Figures 1 to 3 , Figure 2 A self-centering patch head is shown, comprising: a support frame 1, on which a mounting shaft 11 is inserted, at least a pair of clamping claws 12 are hinged to the side wall of the mounting shaft 11, one end of the clamping claws 12 being folded outwards; a drive unit 2, comprising a drive cylinder 21 and a drive ring 22, the drive cylinder 21 being mounted on the support frame 1, the drive ring 22 being sleeved on the mounting shaft 11, and the inner hole of the drive ring 22 being in contact with the side wall of the mounting shaft 11; the drive ring 22 is connected to the piston rod of the drive cylinder 21 via a drive member 23, so that the drive ring 22 presses down on the folded end of the clamping claw 12, driving the clamping claw 12 to rotate and clamp the component; in short, the drive cylinder 21 drives the drive ring 22 to press down on the clamping claw 12, so that the clamping claw 12 clamps synchronously, completing the centering of the component, and directly positioning after one gripping, improving the patching efficiency.

[0037] In some embodiments, Figures 2 to 3 The driving component 23 is shown to be a C-shaped bracket, with its closed end connected to the piston rod of the driving cylinder 21. The open end of the driving component 23 is hinged to the side wall of the mounting shaft 11. A driving block 23a is provided at the open end of the driving component 23. When the piston rod of the driving cylinder 21 slides, it drives the driving component 23 to rotate, causing the driving block 23a to move away from the hinge axis of the driving component 23 and press down on the driving ring 22. In short, the open end of the driving component 23 is hinged to the side wall of the mounting shaft 11, and the piston rod of the driving cylinder 21 drives the closed end of the driving component 23 to rotate, so that the driving block 23a can press down and drive the driving ring 22 down, completing the synchronous clamping of the clamping claw 12.

[0038] In some embodiments, Figure 3 The drive block 23a has a transition arc 23b at its end. In short, the contact surface between the drive block 23a and the drive ring 22 is an arc surface to avoid the edges from contacting the drive ring 22, which would cause the clamping force of the clamping claw 12 to change too drastically, and to complete the clamping of the clamping claw 12 smoothly.

[0039] In some embodiments, Figure 3 The diagram shows that the drive block 23a is inclined toward the closed end of the drive member 23 so that when the piston rod of the drive cylinder 21 is extended to its limit, the vertical distance between the drive block 23a and the hinge axis of the drive member 23 is maximized; in short, when the piston rod of the drive cylinder 21 is extended to its limit, the clamping claw 12 is guaranteed to complete the clamping.

[0040] In some embodiments, Figure 3The mounting shaft 11 has a mounting groove 11a on its side wall, and the clamping claw 12 is hinged in the mounting groove 11a. In short, the mounting groove 11a is provided on the side wall of the mounting shaft 11 to install the clamping claw 12, so as to avoid the clamping claw 12 from being exposed to the mounting shaft 11 and effectively protect the clamping claw 12.

[0041] In some embodiments, Figure 3 The clamping end of the clamping claw 12 is shown to be provided with a flexible block 12a; in short, as a protective element, the clamping end of the clamping claw 12 is provided with a flexible block 12a.

[0042] In some embodiments, Figure 3 The mounting shaft 11 is shown to have an abutment surface 11b at its end to abut against the element, and the sidewall of the flexible block 12a is inclined outward so that the flexible block 12a is opened up when the element contacts the abutment surface 11b; in short, when gripping the element, the support frame 1 is pressed down as a whole so that the element contacts the abutment surface 11b, while the gripping claw 12 is opened up.

[0043] In some embodiments, Figure 3 The mounting shaft 11 is shown to have a through hole 11c. One end of the through hole 11c is connected to an air source, and the other end of the through hole 11c passes through the abutment surface 11b to assist in the suction / placement of components. In short, the air source connected to the through hole 11c can be an exhaust air source to assist in the disengagement of components from the clamping claw 12, or an intake air source to assist in the suction of components and ensure that components fit against the abutment surface 11b. Furthermore, it can also be a switchable intake and exhaust air source to assist in the suction of components while also assisting in the disengagement of components.

[0044] In some embodiments, Figures 2 to 3 The clamping claws 12 are shown to be provided in two pairs and are perpendicular to each other to clamp the long and short edges of the element; in short, the clamping claws 12 are responsible for clamping the long and short edges of the element respectively, ensuring that the square element can self-center.

[0045] See Figure 1 , Figure 1 A chip mounter is shown, comprising: a lifting assembly 3, the lifting end of which is provided with a lifting plate 31; the aforementioned self-centering chip mounter, wherein the support frame 1 is disposed on the side wall of the lifting plate 31.

[0046] In the description of the embodiments of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0047] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and 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, and therefore should not be construed as a limitation of this utility model. Furthermore, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence unless expressly indicated herein. Therefore, without departing from the teachings of the exemplary embodiments, the first element, component, region, layer, or segment discussed above may be referred to as the second element, component, region, layer, or segment.

[0048] Spatially relative terms, such as “inside,” “outside,” “below,” “below,” “down,” “above,” “up,” etc., may be used herein to describe the relationship between one element or feature illustrated in the figures and another element or feature. In addition to the orientations depicted in the figures, spatially relative terms may be intended to cover different orientations of the device in use or operation. For example, if the device in the figure is flipped, an element described as “below” or “below” other elements or features would be oriented as “above” other elements or features. Thus, the example term “below” can cover both above and below orientations. The device may be oriented in other ways (rotated 90 degrees or in other orientations), and the spatially relative descriptors used herein are interpreted accordingly.

[0049] In the above discussion, unless otherwise stated, when used to describe numerical values, the terms “about,” “approximately,” “basically,” etc., indicate a change of + / - 10% in that value.

[0050] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A self-centering patch header, characterized in that, include: A support frame (1) is inserted with a mounting shaft (11), and at least one pair of clamping claws (12) are hinged to the side wall of the mounting shaft (11), with one end of the clamping claws (12) folded outward. The drive unit (2) includes a drive cylinder (21) and a drive ring (22), the drive cylinder (21) being mounted on a support frame (1), the drive ring (22) being sleeved on a mounting shaft (11), and the inner hole of the drive ring (22) fitting against the side wall of the mounting shaft (11); The drive ring (22) is connected to the piston rod of the drive cylinder (21) through the drive member (23) so that the drive ring (22) presses down on the outward end of the clamping claw (12) and drives the clamping claw (12) to rotate the clamping element.

2. The self-centering patch head as described in claim 1, characterized in that, The drive component (23) is a "C"-shaped bracket, the closed end of which is connected to the piston rod of the drive cylinder (21), and the open end of the drive component (23) is hinged to the side wall of the mounting shaft (11); The open end of the drive member (23) is provided with a drive block (23a). When the piston rod of the drive cylinder (21) slides, it drives the drive member (23) to rotate, so that the drive block (23a) moves away from the hinge axis of the drive member (23) and presses down on the drive ring (22).

3. The self-centering patch head as described in claim 2, characterized in that, The end of the drive block (23a) is provided with a transition arc (23b).

4. The self-centering patch head as described in claim 3, characterized in that, The drive block (23a) is inclined toward the closed end of the drive member (23) so that when the piston rod of the drive cylinder (21) extends to its limit, the vertical distance between the drive block (23a) and the hinge axis of the drive member (23) is maximized.

5. The self-centering patch head as described in claim 1, characterized in that, The mounting shaft (11) has a mounting groove (11a) on its side wall, and the clamping claw (12) is hinged in the mounting groove (11a).

6. The self-centering patch head as described in claim 1, characterized in that, The clamping end of the clamping claw (12) is provided with a flexible block (12a).

7. The self-centering patch head as described in claim 6, characterized in that, The end of the mounting shaft (11) is provided with a support surface (11b) to support the element, and the sidewall of the flexible block (12a) is inclined outward so that the flexible block (12a) is opened up when the element contacts the support surface (11b).

8. The self-centering patch head as described in claim 7, characterized in that, The mounting shaft (11) is provided with a through hole (11c). One end of the through hole (11c) is connected to an air source, and the other end of the through hole (11c) passes through the support surface (11b) to complete the auxiliary suction / placement of the component.

9. The self-centering patch head as described in claim 1, characterized in that, The clamping claws (12) are provided in two pairs and are perpendicular to each other to clamp the long and short edges of the element.

10. A pick-and-place machine, characterized in that, include: The lifting pair (3) has a lifting plate (31) at its lifting end. The self-centering patch head as described in any one of claims 1-9, wherein the support frame (1) is disposed on the side wall of the lifting plate (31).

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