Positioning tool for chip mounter

Abstract

The utility model relates to the technical field of chip mounter design, in particular to a positioning tool for a chip mounter. Comprising a mounting box, four clamping plates and a driving assembly, wherein the four clamping plates are mounted on four side parts above the mounting box and are used for clamping a circuit board positioned in a clamping center, and the driving assembly is connected with the clamping plates and is used for driving the clamping plates to move relative to the clamping center; wherein the driving assembly comprises a transmission unit and a driving unit; according to the positioning tool for the chip mounter, through the arrangement of the fixed plate, the connecting plate, the transmission rod, the moving rod and the L-shaped connecting rod in the transmission unit, a plurality of acting points can be provided for the clamping plate when the clamping plate is used for clamping a circuit board, so that the clamping plate is uniformly stressed when clamping the circuit board, and the clamping efficiency is improved. And therefore, the clamping stability of the circuit board is improved, the circuit board is effectively prevented from deviating during clamping, and the machining stability is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the design technical field of chip mounter especially, relates to a positioning tool for chip mounter. BACKGROUND

[0002] Chip mounter is usually configured after the glue dispenser or silk screen printing machine in production, is through moving the mounting head and is accurately welded on the PCB board with various electronic components, in order to keep the stability and accuracy when welding, need positioning fixture to hold.

[0003] But the existing fixture when clamping PCB board, mainly through the clamping plate to the side of PCB board is clamped, but in the drive clamping plate moves, usually through the cylinder direct drive, and the clamping plate single force, when continuing to clamp the circuit board, the pressure that the circuit board is inbalanced to, leading to clamping instability, clamping effect is poor,

[0004] Therefore, it is necessary to propose a technical means to solve the above defects. INVENTION CONTENTS

[0005] The utility model discloses the following technical scheme:

[0006] A positioning tool for chip mounter, including installation box, install in the installation box upper four side parts, four clamping plates for clamping the circuit board in the clamping center and the drive assembly connected with the clamping plate for driving the clamping plate relative to the clamping center moves;

[0007] Among them, the drive assembly includes transmission unit and drive unit;The transmission unit includes the fixed plate installed on the side of the clamping plate away from the clamping center, the multiple connecting plates installed on the side of the fixed plate away from the clamping plate and equidistantly arranged along the length direction of the fixed plate, the transmission rod installed between adjacent two connecting plates and one end passes through the fixed plate and is connected with the clamping plate, the moving rod installed on the side of the connecting plate away from the fixed plate and parallel to the length direction of the fixed plate, the L-shaped connecting rod in the middle rotationally connected with the connecting plate, and one end rotationally connected with the transmission rod, the other end rotationally connected with the moving rod;The drive unit is installed in the installation box and is connected with the moving rod to drive the moving rod to move in the direction parallel to the fixed plate.

[0008] Preferably, the middle and both ends of the L-shaped connecting rod are provided with rotating shafts, so that the middle and both ends of the L-shaped connecting rod are respectively rotationally connected with the connecting plate, the transmission rod and the moving rod.

[0009] Preferably, the transmission unit further comprises a limiting plate installed at both ends of the fixed plate and perpendicular to the fixed plate; the limiting plate is provided with a limiting hole; the moving rod is located between the two limiting plates and the end thereof passes through the limiting hole.

[0010] Preferably, one end of the moving rod passing through the limiting hole is provided with a limiting ring.

[0011] Preferably, the driving unit comprises a transmission rack installed in the mounting box and connected with the moving rod through a transmission plate, a transmission gear engaged with the transmission rack for driving the transmission rack to move when rotating, and a first motor connected based on the transmission gear for driving the transmission gear to rotate.

[0012] Preferably, the upper portion of the mounting box is provided with an avoiding groove for the movement of the transmission rod.

[0013] Preferably, a buffer spring is arranged between the clamping plate and the transmission rod.

[0014] Preferably, the bottom of the mounting box is provided with a second motor for driving the mounting box to rotate.

[0015] The positioning tool for the chip mounter of the utility model relates to a positioning tool for the chip mounter, through the setting of the fixed plate, the connecting plate, the transmission rod, the moving rod and the L-shaped connecting rod in the transmission unit, when the circuit board is clamped by the clamping plate, multiple force points are provided for the clamping plate, so that the clamping plate is uniformly stressed when clamping the circuit board, thereby improving the stability of clamping the circuit board, effectively avoiding the deviation of the circuit board when clamping, thereby improving the stability during processing. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the overall schematic view of the positioning tool for the chip mounter of the utility model;

[0017] Figure 2 It is the overall schematic view of the positioning tool for the chip mounter of the utility model after the side portion and the upper portion of the mounting box are taken out;

[0018] Figure 3 It is Figure 1 The cross-sectional structure schematic view. DETAILED DESCRIPTION

[0019] The technical scheme of the utility model will be described clearly and completely in combination with the drawings, obviously, the described embodiments are a part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0020] In the description of the utility model, it needs to explain, the term "center", "upper", "lower", "left", "right", "vertical", "horizontal", "internal", "external" and so on indicate the orientation or position relation based on the orientation or position relation shown in the drawing, only for the convenience of describing the utility model and simplifying the description, and not indicate or imply that the indicated device or element must have a particular orientation, construct and operate in a particular orientation, therefore, it cannot be understood as the limitation of the utility model. In addition, the term "first", "second", "third" is only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0021] In the description of the utility model, it needs to explain, unless otherwise explicitly specified and limited, the term "installation", "connection", "connection" should be broad sense, for example, it can be fixed connection, can be detachable connection, or integrally connected, can be mechanical connection, can be electrical connection, can be directly connected, can be indirectly connected through intermediate medium, can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to the specific circumstances.

[0022] Please refer to Figures 1 to 3 A positioning tool for chip mounter, including installation box 10, installation in the upper four side parts of installation box 10, four clamping plates 30 for clamping the circuit board located in the clamping center, and drive assembly 40 connected with clamping plate 30, for driving clamping plate 30 to move relative to the clamping center;

[0023] Among them, drive assembly 40 includes transmission unit and drive unit;Transmission unit includes fixed plate 401 installed on the side of clamping plate 30 away from the clamping center, a plurality of connecting plates 402 installed on the side of fixed plate 401 away from clamping plate 30 and equidistantly arranged along the length direction of fixed plate 401, transmission rod 403 installed between adjacent two connecting plates 402, and one end penetrating through fixed plate 401 and connected with clamping plate 30, moving rod 404 installed on the side of connecting plate 402 away from fixed plate 401 and parallel to the length direction of fixed plate 401, L-shaped connecting rod 413, wherein the middle part is rotationally connected with connecting plate 402, and one end is rotationally connected with transmission rod 403, and the other end is rotationally connected with moving rod 404;Drive unit is installed in installation box 10 and connected with moving rod 404, for driving moving rod 404 to move in the direction parallel to fixed plate 401.

[0024] In the embodiment, during operation, the circuit board to be processed is placed in the clamping center, i.e. between the four clamping plates 30, at this time, the driving unit drives the moving rod 404 to move, and then drives the transmission rod 403 to move through the L-shaped connecting rod 413, so that the transmission rod 403 drives the clamping plate 30 to move towards the clamping center, thereby clamping the side of the circuit board.

[0025] The positioning tool for the chip mounter disclosed in the utility model relates to a positioning tool for a chip mounter, through the setting of the fixing plate 401, the connecting plate 402, the transmission rod 403, the moving rod 404 and the L-shaped connecting rod 413 in the transmission unit, multiple force points are provided for the clamping plate 30 when the clamping plate 30 clamps the circuit board, so that the clamping plate 30 is uniformly stressed when clamping the circuit board, thereby improving the stability of clamping the circuit board, effectively avoiding the deviation of the circuit board during clamping, thereby improving the stability during processing.

[0026] In a specific embodiment, the middle part and both ends of the L-shaped connecting rod 413 are provided with rotating shafts 405, so that the middle part and both ends of the L-shaped connecting rod 413 are respectively connected with the connecting plate 402, the transmission rod 403 and the moving rod 404 in rotation.

[0027] In a specific embodiment, the transmission unit further comprises limiting plates 406 installed at both ends of the fixing plate 401 and perpendicular to the fixing plate 401; the limiting plates 406 are provided with limiting holes; the moving rod 404 is located between the two limiting plates 406 and the end thereof passes through the limiting hole. In the embodiment, through the setting of the limiting plates 406 and the limiting holes, the moving rod 404 can be parallelly arranged on one side of the fixing plate 401. Further, one end of the moving rod 404 passing through the limiting hole is provided with a limiting ring 407. In the embodiment, through the setting of the limiting ring 407, the moving rod 404 can move within a preset range under the driving of the driving unit, thereby improving the rationality of the device setting.

[0028] In one specific embodiment, the driving unit comprises a transmission rack 409 mounted in the mounting box 10 and connected with the moving rod 404 through a transmission plate 408, a transmission gear 410 engaged with the transmission rack 409 and used to drive the transmission rack 409 to move when rotating, and a first motor 411 connected based on the transmission gear 410 and used to drive the transmission gear 410 to rotate. Specifically, in the embodiment, during operation, the first motor 411 drives the transmission gear 410 to rotate, which in turn drives the transmission rack 409 to move, thereby driving the moving rod 404 to move through the transmission plate 408. Further, the upper portion of the mounting box 10 is provided with a avoiding slot for the transmission rod 403 to move. In the embodiment, through the avoiding slot, on the one hand, the transmission plate 408 passes through the mounting box 10 and is connected with the moving rod 404, and at the same time, the transmission rod 403 is driven to move when the transmission rack 409 moves; on the other hand, through the avoiding slot, the stability of the directional movement of the moving rod 404 is improved.

[0029] In one specific embodiment, a buffer spring 412 is arranged between the clamping plate 30 and the transmission rod 403. In the embodiment, through the arrangement of the buffer spring 412, damage to the circuit board caused by the clamping plate 30 during clamping is avoided.

[0030] In one specific embodiment, the bottom of the mounting box 10 is provided with a second motor 20 used to drive the mounting box 10 to rotate. In the embodiment, through the arrangement of the second motor 20, the position of the circuit board is adjusted during clamping, which greatly improves the user experience.

[0031] The utility model relates to a kind of positioning tool for chip mounter, through the arrangement of fixed plate 401, connecting plate 402, transmission rod 403, moving rod 404 and L type connecting rod 413 in transmission unit, multiple force points can be provided for clamping plate 30 when clamping plate 30 is clamped to circuit board, so that clamping plate 30 is evenly stressed when clamping circuit board, to improve the stability of clamping circuit board, effectively avoid the deviation of circuit board when clamping, to improve the stability when processing.

[0032] The above embodiments only express several implementation manners of the utility model, and the description is more specific and detailed, but it cannot be understood as the limitation of the utility model patent scope. It should be pointed out that for ordinary skilled person in the art, without departing from the concept of the utility model, a plurality of variations and improvements can be made, which belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent should be subject to the appended claims.

Claims

1. A positioning tool for a chip mounter, characterized by: The mounting box, four clamping plates installed on four sides of the mounting box for clamping the circuit board in the clamping center, and a driving assembly connected with the clamping plates for driving the clamping plates to move relative to the clamping center; The driving assembly comprises a transmission unit and a driving unit; the transmission unit comprises a fixed plate installed on the side of the clamping plate away from the clamping center, a plurality of connecting plates installed on the side of the fixed plate away from the clamping plate and equidistantly arranged along the length direction of the fixed plate, a transmission rod installed between two adjacent connecting plates and having one end penetrating through the fixed plate and being connected with the clamping plate, a moving rod installed on the side of the connecting plate away from the fixed plate and being parallel to the length direction of the fixed plate, and an L-shaped connecting rod having its middle part rotatably connected with the connecting plate and having one end rotatably connected with the transmission rod and the other end rotatably connected with the moving rod; the driving unit is installed in the mounting box and connected with the moving rod to drive the moving rod to move in the direction parallel to the fixed plate.

2. The positioning tooling for a chip mounter according to claim 1, wherein: The middle part and both ends of the L-shaped connecting rod are provided with rotating shafts to rotatably connect the middle part and both ends of the L-shaped connecting rod with the connecting plate, the transmission rod and the moving rod respectively.

3. The positioning tooling for a chip mounter according to claim 1, wherein: The transmission unit further comprises limiting plates installed on both ends of the fixed plate and being perpendicular to the fixed plate; the limiting plates are provided with limiting holes; the moving rod is located between the two limiting plates and has its end penetrating through the limiting hole.

4. The positioning tooling for a chip mounter according to claim 3, wherein: The end of the moving rod penetrating through the limiting hole is provided with a limiting ring.

5. The positioning tool for a chip mounter according to claim 1, characterized by: The driving unit comprises a transmission rack installed in the mounting box and connected with the moving rod through a transmission plate, a transmission gear engaged with the transmission rack to drive the transmission rack to move when rotating, and a first motor connected with the transmission gear to drive the transmission gear to rotate.

6. The positioning tooling for a chip mounter according to claim 5, wherein: The upper part of the mounting box is provided with an avoiding groove for the movement of the transmission rod.

7. The positioning tooling for a chip mounter according to claim 1, wherein: The clamping plate and the transmission rod are provided with a buffer spring.

8. The positioning tool for a chip mounter according to claim 1, characterized by: The bottom of the mounting box is provided with a second motor for driving the mounting box to rotate.

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