TWM523258U - Clamping device of screen printing machine - Google Patents

Description

Screen printing machine clamping device

This creation is about the relevant mechanism of the screen printing machine, especially the clamping device of the screen printing machine.

Before the printed circuit board is known, the material is sent to the screen printing machine by the conveyor belt, and then the material is manually placed on the screen printing machine and manually positioned. The working surface of the screen printing machine has a plurality of Position the mark and manually align the material with the positioning mark before performing circuit printing.

However, in view of the current demand for circuit boards, in terms of manual retrieving and positioning, in addition to a certain limit on the yield, it is easy to cause damage and positioning error of the material, and the printing precision of the circuit board is also Restricting, combining the above shortcomings, manually positioning, the main problem is that it can not be accurately placed in a fixed position, it is easy to produce errors during printing, resulting in material loss and increase cost. Therefore, how to solve the positioning error caused by manual positioning, pending the relevant industry Solve it.

In order to solve the above problems, the present invention provides a clamping device for a screen printing machine, which uses a mechanical arm to drive the clamping device to take the action of retrieving and positioning, thereby improving the error caused by the conventional manual positioning and achieving the effect of precise positioning.

In order to achieve the above object, the present invention provides a clamping device for a screen printing machine, which is assembled in a mechanical arm, and a clamping device of the screen printing machine is used for clamping a circuit board, and transporting the circuit board from a material area to a The working table is fixedly positioned, wherein the end corner of the circuit board has a positioning hole, the working table has a plurality of positioning members, and the positioning holes of the circuit board are aligned with the positioning member, and the clamping device of the screen printing machine comprises: a base, and the machine The arm is locked; a first rail group is fixed to the base; two second rail groups are respectively disposed at two ends of the first rail group, and the two second rail groups are capable of opening and closing with respect to the base And a plurality of end angle clamping units respectively slidably disposed on each of the second sliding rail groups for clamping the circuit board.

Preferably, the end angle clamping unit has a swinging pneumatic cylinder, a clamping block and a clamping plate. The movable end of the swinging pneumatic cylinder is coupled with the clamping block, and the swinging pneumatic cylinder is used to push the clamping block to make the clamping block. The pivoting is generated and an opening and closing action is generated with respect to the clamping plate for clamping the circuit board.

Preferably, each of the end angle clamping units further has a first fixing frame, the first fixing frame is laterally slidably disposed on the second sliding rail group, and the front side of the first fixing frame is fixed by the swinging pneumatic cylinder, wherein the first fixing One end of the frame is coupled to the clamping plate, and the clamping block is pivoted on the front side of the first fixing frame.

Preferably, each end angle clamping unit has a positioning pneumatic cylinder and a positioning block, and the movable end of the positioning pneumatic cylinder is coupled with the positioning block, and the positioning pneumatic cylinder is used for driving the positioning block to reciprocate longitudinally to position the block pressing circuit. board.

By the above, the creation can achieve the effect, the mechanical arm is used to drive the plurality of end angle clamping units to the material area to clamp the circuit board, and the clamping block is pushed by the swinging pneumatic cylinder of each end angle clamping unit to make the clamping The block generates a pivoting function and generates an opening and closing action with respect to the clamping plate for clamping the circuit board, and then moving by the mechanical arm to move to the working table for positioning operation, and fixing the circuit board by the clamping block and the clamping plate, positioning the pneumatic cylinder to drive positioning The block is pressed in the direction of the circuit board, so that the positioning holes of the circuit board are aligned and fixed to the positioning member to complete the positioning action, and the retrieving and positioning actions are performed in an automated manner, thereby improving the error caused by the conventional manual positioning and achieving accurate positioning. effect.

For the convenience of the description, the central idea expressed in the column of the above novel content is expressed by a specific embodiment. The various items in the examples are drawn to scale in the description and not to the actual elements, and are described in the foregoing.

Referring to FIG. 1 to FIG. 10, the present invention provides a clamping device 100 for a screen printing machine, which is assembled on a robot arm (not shown), and the clamping device 100 of the screen printing machine is used for clamping a circuit. The board 200 transports the circuit board 200 from a material area (not shown) to a worktable 300. The four end angles of the circuit board 200 each have a positioning hole, and the worktable 300 has a plurality of positioning members 301. The locating hole of the circuit board 200 is fixedly aligned with the positioning member 301. In this embodiment, the number of the positioning members 301 is four, and the clamping device 100 of the screen printing machine comprises:

A base 10, one side of which is locked with the mechanical arm.

A first rail set 20 is secured below the base 10.

Two second sliding rail groups 30 are respectively disposed at two ends of the first sliding rail group 20, and the two second sliding rail assemblies 30 are capable of opening and closing with respect to the base 10, and each of the second sliding rail groups 30 and the first sliding rail group 30 The rail group 20 has a fixing base 80 and a connecting plate 40. The fixing base 80 and the connecting plate 40 are connected by a power source 90. Among them, the power source 90 is one of a pneumatic cylinder, a hydraulic cylinder and a motor. In the embodiment, the power source 90 is a pneumatic cylinder. Each of the second rail sets 30 is coupled to the first rail set 20 by a web 40. The web 40 is slidably disposed on the first rail set 20, and one side of the web 40 is fixed to the second rail set 30. The other side of the connecting plate 40 is fixed to the movable end of the power source 90, and is driven by the power source 90 to drive the two second rail sets 30 to open and close with respect to the base 10, as shown in FIGS. 2 and 10.

The plurality of end corner clamping units 50 are respectively slidably disposed on each of the second sliding rail groups 30. In the present embodiment, each of the second sliding rail groups 30 is slidably provided with two end corner clamping units 50, so that Each of the end angle clamping units 50 is correspondingly disposed at the four end corners of the circuit board 200, as shown in FIG.

Each of the end angle clamping units 50 has a first fixing frame 51, a swinging pneumatic cylinder 52, a clamping block 53 and a fixing shaft 54. The first fixing frame 51 has a first fixing plate 511 and a clamping plate 512. The first fixing plate 511 is perpendicular to the clamping plate 512. The front side of the first fixing plate 511 is fixed by the swinging pneumatic cylinder 52, and the rear side of the first fixing plate 511 is slidably coupled with each of the second sliding rail groups 30, and the swinging pneumatic cylinder 52 is The movable end is coupled to the clamping block 53. The fixing shaft 54 pivots the clamping block 53 to the front side of the first fixing plate 511, and the swinging pneumatic cylinder 52 is used to drive the clamping block 53 so that the clamping block 53 is fixed to the shaft 54. The swing center is swung and the opening and closing action is generated with respect to the sandwiching plate 512. The clamping block 53 has a swinging portion 531 and a clamping portion 532. The swinging portion 531 is disposed at the movable end of the swinging pneumatic cylinder 52, and the clamping portion 532 corresponds to the clamping plate 512. When the swinging pneumatic cylinder 52 pushes the swinging portion 531 The clamping block 53 swings with the fixed shaft 54 as a swing center, and the clamping portion 532 is opened and closed with respect to the clamping portion 532, and the circuit board 200 is clamped by the clamping plate 512 and the clamping portion 532, as shown in FIG. .

In addition, each of the end angle clamping units 50 further has a positioning pneumatic cylinder 55 and a positioning block 56. The positioning pneumatic cylinder 55 is erected on the clamping plate 512, and the movable end of the positioning pneumatic cylinder 55 is coupled with the positioning block 56. In this embodiment, when the circuit board 200 is clamped by the clamping plate 512 and the clamping portion 532, the positioning hole of the circuit board 200 is aligned with the positioning member 301, and the positioning pneumatic cylinder 55 drives the positioning block 56 to press the circuit board 200. The positioning hole of the circuit board 200 is inserted into the positioning member 301 by the positioning block 56, so that the circuit board 200 is fixed to the work table 300, as shown in FIG. 3 and FIG.

The plurality of adjusting members 60 are longitudinally locked between the first fixing frame 51 and the second sliding rail group 30 for adjusting the distance between each end angle clamping unit 50 and the first sliding rail group 20, and the adjusting members 60 are adjusted. The two corner clamping units 50 are spaced apart from each other on the second rail group 30, and the spacing thereof is adjusted according to the four end angles of the corresponding circuit board 200, as shown in FIGS. 3 and 4.

The plurality of fixed clamping units 70 are respectively slidably disposed on each of the second sliding rail sets 30. In this embodiment, each of the second sliding rail sets 30 is provided with two fixed clamping units 70, and each fixed clamping unit 70 is disposed between the first rail set 20 and each end angle clamping unit 50.

Each of the fixed clamping units 70 has a second fixing frame 71, a fixed pneumatic cylinder 72 and a fixing block 73. The second fixing frame 71 has a second fixing plate 711 and a clamping plate 712. The second fixing plate 711 and The clamping plate 712 is vertical, the second fixing plate 711 is slidably disposed on the second sliding rail group 30, and the front side of the second fixing plate 711 is fixed to the fixed pneumatic cylinder 72. The movable end of the fixed pneumatic cylinder 72 and the fixed block are fixed. 73, the fixed pneumatic cylinder 72 is used to drive the fixing block 73 to cause the fixing block 73 to open and close with respect to the clamping plate 712 for clamping the circuit board 200. After the end corner clamping unit 50 clamps the four end corners of the circuit board 200, in order to enable the circuit board 200 to be more stably held and transported to the table 300, the circuit board 200 is clamped by the fixed clamping unit 70. In the intermediate position, by holding the four end corners and the intermediate position of the circuit board 200, the circuit board 200 can be smoothly clamped and transported to the work table 300 for positioning and printing work.

The above is an overview of the structure and shape of the creation, and the principles and methods of use that can be achieved by this creation are as follows:

Referring to FIG. 2 and FIG. 5 to FIG. 8 , the clamping device 100 of the present invention drives the plurality of end angle clamping units 50 and the fixed clamping unit 70 to the material area clamping circuit board 200 by a mechanical arm, by each end. The swinging pneumatic cylinder 52 of the angle clamping unit 50 pushes the clamping block 53, the clamping portion 532 opens and merges the four end corners of the clamping circuit board 200, and the fixed pneumatic cylinder 72 of the fixed clamping unit 70 controls the fixing block 73. The fixing block 73 and the clamping plate 712 are fixed to the middle position of the clamping circuit board 200. After the circuit board 200 is smoothly clamped, the mechanical arm is moved to the table 300 for positioning.

During positioning, the circuit board 200 is fixed by the clamping portion 532 and the clamping plate 512. The positioning pneumatic cylinder 55 drives the positioning block 56 to press in the direction of the circuit board 200, so that the four end angles of the circuit board 200 are aligned and fixed to the worktable 300. On the positioning member 301, the positioning operation is completed, the screen printing front operation is performed, the reclaiming and positioning operations are performed in an automated manner, and the error caused by the conventional manual positioning is improved, and the precise positioning effect is achieved.

Referring to FIG. 3 and FIG. 4, when the circuit board 200 has different area requirements, the adjusting member 60 adjusts the distance between the end corner clamping units 50 on each of the second sliding rail groups 30, and the spacing thereof is as follows. The requirements are adjusted corresponding to the four end corners of the circuit board 200. As shown in FIG. 4, when the area of the circuit board 200 is small, the adjusting member 60 is loosened, and the end corner clamping units 50 are moved on the second sliding rail groups 30, so that the end corner clamping units are 50 can hold the four end angles of the circuit board 200 correspondingly for subsequent clamping and positioning work.

The above embodiments are merely illustrative of the present invention and are not intended to limit the scope of the present invention. All kinds of modifications or changes that are not in violation of the spirit of this creation are all in the scope of this creative intention.

100‧‧‧Clamping device
531‧‧‧ swinging department
200‧‧‧ boards
532‧‧‧Clamping Department
300‧‧‧Workbench
54‧‧‧Fixed shaft
301‧‧‧ positioning parts
55‧‧‧ Positioning pneumatic cylinder
10‧‧‧ Pedestal
56‧‧‧ Positioning block
20‧‧‧First slide group
60‧‧‧Adjustment
30‧‧‧Second rail group
70‧‧‧Fixed clamping unit
40‧‧‧Link board
71‧‧‧Second holder
50‧‧‧End angle clamping unit
711‧‧‧Second fixed plate
51‧‧‧First holder
712‧‧‧ holding plate
511‧‧‧First fixed plate
72‧‧‧Fixed pneumatic cylinder
512‧‧‧Plywood
73‧‧‧Fixed block
52‧‧‧Swing air cylinder
80‧‧‧ fixed seat
53‧‧‧Clamps
90‧‧‧Power source

Figure 1 is a perspective view of the creation. Figure 2 is a schematic diagram of the second slide group of the present creation. 3 is a schematic view (1) of an embodiment of the present invention, showing that the circuit board is positioned and fixed to the workbench. 4 is a schematic view (2) of an embodiment of the present invention, showing that a circuit board of another size is positioned and fixed to the workbench. Fig. 5 is a schematic view showing the swinging of the swinging pneumatic cylinder driving clamping block of the present invention. Figure 6 is a schematic view of the clamped circuit board of the present invention and the clamped circuit board. Figure 7 is a schematic view of the fixed clamping unit of the present invention. Fig. 8 is a schematic view showing the clamping circuit board of the fixed clamping unit of the present invention. Figure 9 is an enlarged schematic view of the first slide group of the present invention. Figure 10 is a schematic diagram of the action of the first slide group of the present creation.

100‧‧‧Clamping device

10‧‧‧ Pedestal

20‧‧‧First slide group

30‧‧‧Second rail group

40‧‧‧Link board

50‧‧‧End angle clamping unit

60‧‧‧Adjustment

70‧‧‧Fixed clamping unit

80‧‧‧ fixed seat

90‧‧‧Power source

Claims (10)

The clamping device of the screen printing machine is assembled on a mechanical arm, the clamping device of the screen printing machine is used for clamping a circuit board, and the circuit board is transported from a material area to a worktable for positioning and fixing. The clamping device of the screen printing machine comprises: a base fixed with the mechanical arm; a first sliding rail group fixed to the base; and two second sliding rail groups respectively disposed on the first sliding rail group The two second sliding rail groups are opened and closed with respect to the base; and the plurality of end corner clamping units are respectively slidably disposed on each of the second sliding rail groups for clamping the circuit board. The clamping device of the screen printing machine of claim 1, wherein each of the end angle clamping units has a swinging pneumatic cylinder, a clamping block and a clamping plate, and the movable end of the swinging pneumatic cylinder is coupled with the clamping end The block is connected, and the swinging pneumatic cylinder is used to push the clamping block to cause the clamping block to pivot and open and close with respect to the clamping plate for clamping the circuit board. The clamping device of the screen printing machine of claim 2, wherein each of the end angle clamping units further has a first fixing frame, and the first fixing frame is further slidably disposed on the second sliding rail group. The front side of the first fixing frame is fixed to the swinging pneumatic cylinder, wherein the clamping plate is coupled to one end of the first fixing frame, and the clamping block is pivoted on the front side of the first fixing frame. The clamping device of the screen printing machine of claim 1 or 2, wherein each of the end angle clamping units has a positioning pneumatic cylinder and a positioning block, and the movable end of the positioning pneumatic cylinder is coupled with the positioning block, The positioning pneumatic cylinder is used to drive the positioning block to reciprocate longitudinally so that the positioning block presses against the circuit board. The clamping device of the screen printing machine of claim 4, further comprising an adjusting member, the adjusting member being locked between each of the second sliding rail groups and each of the end corner clamping units for adjusting each of the The distance between the end angle clamping unit and the first rail group. The clamping device of the screen printing machine of claim 4, wherein each of the end angle clamping units is disposed at each end angle of the circuit board. The clamping device of the screen printing machine according to claim 1 further comprises a plurality of fixed clamping units, each of which is slidably disposed on each of the second sliding rail groups, each of the fixed clamping units having a fixed pneumatic cylinder and a fixed And a clamping plate, the movable end of the fixed pneumatic cylinder is coupled to the fixing block, and the fixed pneumatic cylinder is used for driving the fixing block to cause the fixing block to open and close with respect to the clamping plate for clamping the Circuit board. The clamping device of the screen printing machine of claim 7, wherein each of the fixed clamping units further has a second fixing frame, the second fixing frame is further slidably disposed on the second sliding rail group, the first The front side of the second fixing frame is fixed to the fixed pneumatic cylinder, wherein the clamping plate is coupled to one end of the second fixing frame, and the fixing block is disposed on the front side of the second fixing frame. The clamping device of the screen printing machine of claim 7, wherein each of the fixed clamping units is disposed between the first rail group and each of the corner clamping units. The clamping device of the screen printing machine of claim 1, wherein the first sliding rail group and each of the second sliding rail assemblies have a fixing seat and a connecting plate, and the fixing seat and the connecting plate are The power source is coupled to be actuated by the power source to drive the two second rail groups to open and close with respect to the base.