Chip mounter clamping device

Abstract

The utility model belongs to the technical field of chip mounters, particularly relates to a clamping device of a chip mounter, and aims to solve the problem that a PCB (Printed Circuit Board) is damaged by extrusion in the prior art, the clamping device of the chip mounter comprises a bracket, two sliding blocks are arranged on the inner walls of the two ends of the bracket in a sliding manner, and two first fixing blocks are symmetrically and fixedly connected to the tops of the two sliding blocks; the tops of the two first fixing blocks located on the same sliding block are fixedly connected with the same top plate, the bottoms of the two sliding blocks are symmetrically and fixedly connected with two second fixing blocks, one sides of the two second fixing blocks located on the same sliding block are fixedly connected with rotating bases, and the two rotating bases are fixedly connected with air cylinders. The sliding block is driven by the air cylinder to move towards the middle, so that the PCB is extruded and fixed, the limiting block is designed to be trapezoidal, the PCBs with different thicknesses can be fixed, the spring is installed in the groove of the top plate, when the PCB is extruded, the spring is used for buffering, and damage to the PCB is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of chip mounters, in particular to a clamping device for chip mounters. Background Art

[0002] The placement machine is also called "mounting machine" or "surface mount system". In the production line, it is configured after the dispensing machine or screen printing machine. It is a device that accurately places surface mount components on the PCB pads by moving the placement head.

[0003] Existing placement machines use manual clamping and automatic clamping methods. Manual clamping requires manual clamping of PCB boards one by one, which wastes manpower. Automatic clamping generally squeezes and fixes from side to side, which can easily cause extrusion damage to the PCB board. Therefore, we propose a placement machine clamping device to solve the above problems. Utility Model Content

[0004] The utility model aims to solve the defect of the prior art that the PCB board is damaged due to extrusion, and proposes a clamping device for a chip mounter.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A clamping device for a placement machine comprises a clamping device that cooperates with the placement machine, the clamping device comprising a bracket, two sliders are slidably provided on the inner walls at both ends of the bracket, the two sliders are provided with limiting holes, the tops of the two sliders are symmetrically fixedly connected to two first fixing blocks, the tops of the two first fixing blocks located on the same slider are fixedly connected to the same top plate, one side of the top plate is provided with a first groove, the inner walls of the first groove are slidably connected to multiple limiting blocks, one side of the limiting blocks is fixedly connected to two springs, the bottoms of the two sliders are symmetrically fixedly connected to two second fixing blocks, one side of the two second fixing blocks located on the same slider is fixedly connected to a rotating seat, the two rotating seats are fixedly connected to a cylinder, the output ends of the two cylinders are fixedly connected to the second fixing blocks located on the other side, a baffle is fixedly installed in the middle position of the bracket, and a rotating shaft is rotatably connected to the center position of the baffle.

[0007] In a possible design, one end of each of the two springs is fixedly connected to the inner wall of the first groove.

[0008] In a possible design, the limit block is used to clamp PCB boards of different thicknesses.

[0009] In a possible design, a plurality of transmission rollers are rotatably connected to the inner wall of the first groove, a double-row sprocket is disposed on an outer fixed sleeve of the transmission roller, and adjacent double-row sprocket transmission sleeves are provided with the same chain.

[0010] In a possible design, a motor seat is fixedly installed at the bottom of one end of the top plate, a driving motor is fixedly installed inside the motor seat, an output end of the driving motor passes through the motor seat and is fixedly connected to a driving gear, one of the transmission rollers is fixedly connected to a driven gear, and the driving gear is meshed with the driven gear.

[0011] In a possible design, a rack is fixedly connected to one side of each of the two sliders, the rotating shaft passes through a rotationally connected limit gear, the limit gear is meshed with the two racks, and the limit gear and the two racks ensure that the position of the PCB board after clamping is always located in the center of the device.

[0012] In the present application, the PCB board is first placed between two top plates connected by two sliders, and then the motors on the two top plates are started. The motors rotate, driving the transmission roller meshing with the motors to rotate, so that the PCB board placed on the transmission rollers moves to the middle of the two top plates as the transmission rollers rotate. Then the motors are turned off, and then the cylinders are started. The cylinders drive the two sliders to move toward the middle, and the two top plates connected to the sliders move toward the middle relatively, and the PCB board is clamped. At the same time, the racks installed on the two sliders move toward the middle, and the limit gears meshing in the two racks rotate due to the movement of the racks, so that the two top plates can keep moving toward the middle synchronously, and the position of the PCB board is limited to always remain in the middle of the two top plates. Then the limit blocks in the two top plates squeeze the PCB board, so that the PCB board is clamped and fixed. At the same time, the springs installed on the limit blocks can buffer the PCB board when the limit blocks squeeze the PCB board, thereby reducing damage to the PCB board.

[0013] In the utility model, the clamping device of the chip mounter drives the slide block to move in the center through the cylinder, thereby squeezing the PCB board and fixing the PCB board;

[0014] In the utility model, the clamping device of the chip mounter has a plurality of limit blocks that can clamp PCB boards of different shapes, and the limit blocks are designed in a stepped shape, so that PCB boards of different thicknesses can be fixed;

[0015] In the utility model, a clamping device for a chip mounter is provided, wherein a spring is installed in a groove of a top plate, and the spring is located between the top plate and a limit block, so that when the PCB board is squeezed, the spring acts as a buffer, thereby reducing damage to the PCB board;

[0016] In the utility model, the slide block is driven to move toward the middle by the cylinder to complete the extrusion of the PCB board, so that the PCB board is fixed. The limit block is designed to be trapezoidal, and the position of the PCB board is limited. At the same time, PCB boards of different thicknesses can be fixed. A spring is installed in the groove of the top plate, and the spring fixes the top plate and the limit block, so that when the PCB board is extruded, the spring is used as a buffer to reduce damage to the PCB board. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a partial structural schematic diagram of a clamping device for a chip mounter proposed by the utility model in a chip mounter;

[0018] Figure 2 A three-dimensional structural schematic diagram of a clamping device for a chip mounter proposed by the utility model;

[0019] Figure 3 This is a front structural schematic diagram of a clamping device for a chip mounter proposed by the utility model;

[0020] Figure 4 It is a schematic diagram of a partial cross-sectional top view of the structure of a clamping device for a chip mounter proposed by the utility model;

[0021] Figure 5 A clamping device for a chip mounter proposed by the utility model Figure 2 Schematic diagram of the structure of A.

[0022] Figure 6 A clamping device for a chip mounter proposed by the utility model Figure 4 Schematic diagram of the structure of B.

[0023] In the figure: 1, bracket; 2, slider; 3, first fixed block; 4, second fixed block; 5, rotating seat; 6, cylinder; 7, top plate; 8, rack; 9, limit gear; 10, rotating shaft; 11, baffle; 12, spring; 13, limit block; 14, limit hole; 15, first groove; 16, motor seat; 17, driving motor; 18, driving gear; 19, transmission roller; 20, driven gear; 21, chain. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0025] Example 1

[0026] Reference Figure 1-4A clamping device comprises a bracket 1, two sliders 2 are slidably provided on the inner walls at both ends of the bracket 1, the two sliders 2 are used to slide toward the middle, the two sliders 2 are provided with limiting holes 14, the tops of the two sliders 2 are symmetrically fixedly connected with two first fixing blocks 3, the tops of the two first fixing blocks 3 located on the same slider 2 are fixedly connected with the same top plate 7, the top plate 7 is used to clamp the PCB board, a first groove 15 is provided on one side of the top plate 7, a plurality of limiting blocks 13 are slidably connected to the inner wall of the first groove 15, the limiting blocks 13 are used to clamp PCB boards of different thicknesses, the bottoms of the two sliders 2 are symmetrically fixedly connected with two second fixing blocks 4, one side of the two second fixing blocks 4 located on the same slider 2 are fixedly connected with a rotating seat 5, the two rotating seats 5 are fixedly connected with cylinders 6, the output ends of the two cylinders 6 are fixedly connected with the second fixing blocks 4 located on the other side, the two cylinders 6 are used to drive the two sliders 2 to move, a baffle 11 is fixedly installed at the middle position of the bracket 1, the baffle 11 is used to limit the moving position of the slider 2, and the center position of the baffle 11 is rotatably connected with a rotating shaft 10.

[0027] The present application can be used in the field of chip placement machine technology, and can also be used in other fields applicable to the present application.

[0028] Example 2

[0029] refer to Figure 1-5 , improved on the basis of the first embodiment: a clamping device for a chip mounter, which is applied to the field of chip mounter technology, one side of the limit block 13 is fixedly connected to two springs 12, one end of the two springs 12 is fixedly connected to the inner wall of the first groove 15, so that when the PCB board is squeezed, the spring is used as a buffer to reduce damage to the PCB board, the inner wall of the first groove 15 is rotatably connected to a plurality of transmission rollers 19, the outer fixed sleeve of the transmission roller 19 is provided with a double-row sprocket, and the adjacent double-row sprocket transmission sleeves are provided with the same chain 21, and one end of the top plate 7 is fixed to the bottom A motor base 16 is installed, and a driving motor 17 is fixedly installed inside the motor base 16. The output end of the driving motor 17 passes through the motor base 16 and is fixedly connected to a driving gear 18. One of the transmission rollers 19 is fixedly connected to a driven gear 20, and the driving gear 18 is meshed with the driven gear 20. One side of the two sliders 2 is fixedly connected to a rack 8. The rotating shaft 10 passes through and is rotatably connected to a limit gear 9. The limit gear 9 is meshed with the two racks 8. The limit gear 9 and the two racks 8 ensure that the position of the PCB board after clamping is always located in the center of the device.

[0030] However, as is well known to those skilled in the art, the working principle and wiring method of the drive motor 17 are commonplace, and are conventional means or common knowledge, and will not be elaborated here. Those skilled in the art may make any selection according to their needs or convenience.

[0031] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A clamping device for a chip mounter, comprising a clamping device matched with the chip mounter, the clamping device comprising a bracket (1), characterized in that: Two sliders (2) are slidably provided on the inner walls at both ends of the bracket (1), and the two sliders (2) are provided with limiting holes (14). The tops of the two sliders (2) are symmetrically fixedly connected with two first fixing blocks (3), and the tops of the two first fixing blocks (3) located on the same slider (2) are fixedly connected with the same top plate (7), and a first groove (15) is provided on one side of the top plate (7), and the inner wall of the first groove (15) is slidably connected with a plurality of limiting blocks (13), and one side of the limiting blocks (13) is fixedly connected There are two springs (12), two second fixed blocks (4) are symmetrically fixedly connected to the bottom of the two sliders (2), a rotating seat (5) is fixedly connected to one side of the two second fixed blocks (4) located on the same slider (2), the two rotating seats (5) are fixedly connected to a cylinder (6), the output ends of the two cylinders (6) are fixedly connected to the second fixed block (4) located on the other side, a baffle (11) is fixedly installed in the middle position of the bracket (1), and a rotating shaft (10) is rotatably connected to the center position of the baffle (11).

2. A clamping device for a chip mounter according to claim 1, characterized in that: One end of each of the two springs (12) is fixedly connected to the inner wall of the first groove (15).

3. A clamping device for a chip mounter according to claim 1, characterized in that: The limiting block (13) is used to clamp PCB boards of different thicknesses.

4. A clamping device for a chip mounter according to claim 1, characterized in that: The inner wall of the first groove (15) is rotatably connected to a plurality of transmission rollers (19), the outer fixed sleeve of the transmission roller (19) is provided with a double-row sprocket, and adjacent double-row sprocket transmission sleeves are provided with the same chain (21).

5. A clamping device for a chip mounter according to claim 4, characterized in that: A motor seat (16) is fixedly mounted at the bottom of one end of the top plate (7), a driving motor (17) is fixedly mounted inside the motor seat (16), an output end of the driving motor (17) passes through the motor seat (16) and is fixedly connected to a driving gear (18), one of the transmission rollers (19) is fixedly connected to a driven gear (20), and the driving gear (18) is meshed with the driven gear (20).

6. A clamping device for a chip mounter according to claim 1, characterized in that: One side of the two sliders (2) is fixedly connected with a rack (8), the rotating shaft (10) passes through a limit gear (9) for rotational connection, the limit gear (9) is meshedly connected with the two racks (8), and the limit gear (9) and the two racks (8) ensure that the position of the PCB board after clamping is always located at the center of the device.

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