Automatic positioning and pressing mechanism for spot welding of copper sheet

Abstract

The utility model relates to the technical field of spot welding assistance, in particular to a positioning automatic pressing mechanism for spot welding of a copper sheet, which comprises a bottom plate, an XY fine-tuning platform and a support plate are arranged on the surface of the bottom plate, a lead screw motor is arranged on a driving part of the XY fine-tuning platform, a connecting part is arranged on a driving part of the lead screw motor, and the connecting part is connected with the support plate. A pressing head fixing rod is arranged on the connecting piece, a copper sheet pressing head is arranged at one end of the pressing head fixing rod, a placing jig is arranged on the supporting plate, and a copper sheet positioning assembly is arranged on one side of the supporting plate. According to the positioning and automatic pressing mechanism for spot welding of the copper sheet, an XY fine adjustment platform is arranged, fine adjustment of an operator is facilitated, the debugging time is saved, a lead screw motor is matched with a copper sheet pressing head, pressing is driven by the motor to control pressure, the cold solder joint condition is effectively avoided, and the working efficiency is improved. And the mechanism can also automatically perform synchronous positioning spot welding on a plurality of copper sheets, so that the utilization rate of equipment is effectively improved, and the labor cost and the equipment cost are reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to spot welding auxiliary technical field, concretely is a kind of positioning automatic pressing mechanism for copper sheet spot welding. BACKGROUND

[0002] In mobile phone manufacturing, copper sheets are welded in the mobile phone face shell, mainly to improve the heat dissipation performance and electromagnetic shielding effect of the mobile phone, and also to enhance the structural strength of the face shell to some extent, thereby providing protection for stable operation and performance of the mobile phone, and also having good electromagnetic shielding performance, welding copper sheets in the mobile phone face shell can form an electromagnetic shielding layer, effectively blocking external electromagnetic interference from entering the mobile phone interior, while also preventing electromagnetic radiation inside the mobile phone from leaking to the external environment.

[0003] At present, when spot welding copper sheets on the mobile phone face shell, due to the small size of the copper sheets, manual jig spot welding is mainly used, but this method has the disadvantages of difficult manual picking and placing, low work efficiency and high labor cost, and manual welding cannot guarantee the position accuracy of the copper sheets, resulting in defective products such as virtual welding and offset welding, so a positioning automatic pressing mechanism for copper sheet spot welding is needed for this situation. SUMMARY

[0004] In view of the deficiencies of the prior art, the utility model provides a positioning automatic pressing mechanism for copper sheet spot welding, which solves the problems raised in the background art.

[0005] To achieve the above purpose, the utility model realizes the following technical scheme: a positioning automatic pressing mechanism for copper sheet spot welding, comprising a base plate, the surface of the base plate is provided with an XY fine adjustment platform and a support plate, the drive part of the XY fine adjustment platform is provided with a lead screw motor, the drive part of the lead screw motor is provided with a connecting piece, a pressure head fixing rod is arranged on the connecting piece, one end of the pressure head fixing rod is provided with a copper sheet pressure head, a placement jig is arranged on the support plate, one side of the placement jig is provided with a copper sheet positioning assembly.

[0006] Optionally, the copper sheet positioning assembly comprises a first adjusting cylinder, a connecting plate, an XYZ fine adjustment platform, a cylinder mounting plate, a second adjusting cylinder and a buffer, the drive end of the first adjusting cylinder is provided with a connecting plate, the surface of the connecting plate is provided with an XYZ fine adjustment platform, a cylinder mounting plate is arranged on the XYZ fine adjustment platform, the surface of the cylinder mounting plate is provided with a second adjusting cylinder, and the drive end of the second adjusting cylinder is provided with a buffer.

[0007] Optionally, the first adjusting cylinder is arranged at the back of the placement jig.

[0008] Optionally, a fixing block and an adjusting plate are further arranged between the second adjusting cylinder and the buffer, and the fixing block and the adjusting plate are connected by bolts.

[0009] Optionally, a long hole is further arranged on the surface of the adjusting plate, and the bolt is screwed on the fixing block through the long hole.

[0010] Optionally, the surface of the placement jig is provided with a plurality of suction cups and positioning pins.

[0011] The utility model provides a positioning automatic press closing mechanism for copper sheet spot welding has the following beneficial effects:

[0012] 1, this positioning automatic press closing mechanism for copper sheet spot welding, through the setting of XY fine adjustment platform, to facilitate the operator to fine tune, save the debugging time, through the setting of screw rod motor cooperation copper sheet pressure head, to adopt through motor drive press closing, to control pressure, effectively avoid the situation of false welding, through the setting of first adjusting cylinder and second adjusting cylinder in copper sheet positioning assembly cooperation XYZ fine adjustment platform, ensure its precision while realizing automatic positioning, and through XYZ fine adjustment platform cooperation manual fine tuning, further reduce the precision control requirement of cylinder drive.

[0013] 2, this positioning automatic press closing mechanism for copper sheet spot welding, through the setting of buffer, when the face shell is not placed in place, promote face shell adjusting position, make it accurate to place in place, make it not because pin hole size deviation and weld error, realize self -adaptation positioning function, this mechanism can also realize automatic to a plurality of copper sheet synchronous positioning spot welding, effectively improve equipment utilization, reduce artificial and equipment cost. ACCURACY

[0014] Figure 1 It is a structural schematic view of the utility model;

[0015] Figure 2 It is a side structural schematic view of the utility model;

[0016] Figure 3 It is a top structural schematic view of the utility model;

[0017] Figure 4 It is a placement jig structural schematic view of the utility model.

[0018] In the figure: 1, the bottom plate; 2, the XY fine adjustment platform; 3, the support plate; 4, the screw rod motor; 5, the connecting piece; 6, the pressure head fixed rod; 7, the copper sheet pressure head; 8, the placement jig; 9, the copper sheet positioning assembly; 901, the first adjusting cylinder; 902, the connecting plate; 903, the XYZ fine adjustment platform; 904, the cylinder mounting plate; 905, the second adjusting cylinder; 906, the buffer; 10, the fixed block; 11, the adjusting plate; 12, the long slot; 13, the suction cup; 14, the positioning pin. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0020] Please refer to Figures 1 to 4 The utility model provides a kind of technical scheme: a kind of positioning automatic pressing mechanism for copper sheet spot welding, including bottom plate 1, the surface of bottom plate 1 is provided with XY fine adjustment platform 2 and support plate 3, by XY fine adjustment platform 2, copper sheet pressure head 7 can be made to operator to the adjustment of screw rod motor 4 in XY direction, to facilitate operator to fine tune, save debugging time, the driving element of XY fine adjustment platform 2 is provided with screw rod motor 4, the driving element of screw rod motor 4 is provided with connecting piece 5, pressure head fixed rod 6 is set on connecting piece 5, one end of pressure head fixed rod 6 is provided with copper sheet pressure head 7, by screw rod motor 4 cooperates the setting of copper sheet pressure head 7, to adopt by motor drive pressing, control pressure, effectively avoid the condition of false welding, placement jig 8 is set on support plate 3, the surface of placement jig 8 is provided with multiple suction cups 13 and positioning pins 14, to be inhaled by suction cup 13 and then be positioned and fixed by positioning pin 14;

[0021] One side of the placement jig 8 is provided with a copper sheet positioning assembly 9, the copper sheet positioning assembly 9 includes a first adjusting cylinder 901, a connecting plate 902, an XYZ fine adjustment platform 903, a cylinder mounting plate 904, a second adjusting cylinder 905 and a buffer 906, the first adjusting cylinder 901 is arranged at the back of the placement jig 8, the driving end of the first adjusting cylinder 901 is provided with the connecting plate 902, the surface of the connecting plate 902 is provided with the XYZ fine adjustment platform 903, the cylinder mounting plate 904 is arranged on the XYZ fine adjustment platform 903, the surface of the cylinder mounting plate 904 is provided with the second adjusting cylinder 905, the first adjusting cylinder 901 and the second adjusting cylinder 905 are matched to drive the buffer 906 to automatically move, automatic positioning of the face shell is realized while the accuracy is ensured, and the XYZ fine adjustment platform 903 is matched to manually fine adjust, the accuracy control requirement of the cylinder drive is further reduced, the driving end of the second adjusting cylinder 905 is provided with the buffer 906, when the face shell is not placed in place, the buffer 906 is arranged to push the face shell to adjust the position, so that the face shell can be accurately placed in place, and welding errors caused by pin hole size deviation are avoided, the self-adaptive positioning function is realized, and the fixed block 10 and the adjusting plate 11 are further arranged between the second adjusting cylinder 905 and the buffer 906, the fixed block 10 and the adjusting plate 11 are connected by bolts, the surface of the adjusting plate 11 is further provided with a long hole 12, the bolt is screwed on the fixed block 10 through the long hole 12, so that the buffer 906 can be flexibly adjusted by the operator, the mechanism can also realize automatic synchronous positioning spot welding of multiple copper sheets, effectively improves the equipment utilization rate, and reduces the labor and equipment costs.

[0022] In the utility model, the working steps of the device are as follows:

[0023] The spot welding machine is matched, when the robot hand takes the mobile phone face shell from the assembly line and places it on the placement jig 8, the mobile phone face shell is sucked by the suction cup 13 and is fixed and positioned by the positioning pin 14.

[0024] Then the first adjusting cylinder 901 and the second adjusting cylinder 905 are matched to drive the buffer 906 to automatically move, the face shell is fine adjusted and positioned, another robot takes the copper sheet, places it in the welding position, and then the lead screw motor 4 is started to drive the copper sheet pressing head 7 to move to the copper sheet, the copper sheet is pressed, and the spot welding machine is used for welding.

[0025] The above is only a preferred specific embodiment of the utility model, but the protection scope of the utility model is not limited to this, any person skilled in the art in the technical range disclosed by the utility model, according to the technical scheme and the utility model concept of the utility model, equivalent replacement or change, should be covered in the protection scope of the utility model.

Claims

1. A positioning automatic press mechanism for spot welding of copper sheets, comprising a base plate (1), characterized in that: The surface of the bottom plate (1) is provided with an XY fine adjustment platform (2) and a supporting plate (3), a driving part of the XY fine adjustment platform (2) is provided with a lead screw motor (4), a driving part of the lead screw motor (4) is provided with a connecting piece (5), a pressing head fixing rod (6) is arranged on the connecting piece (5), one end of the pressing head fixing rod (6) is provided with a copper sheet pressing head (7), and a placing jig (8) is arranged on the supporting plate (3), one side of the placing jig (8) is provided with a copper sheet positioning assembly (9).

2. A positioning and automatic pressing mechanism for spot welding of copper sheets according to claim 1, characterized in that: The copper sheet positioning assembly (9) comprises a first adjusting cylinder (901), a connecting plate (902), an XYZ fine adjustment platform (903), a cylinder mounting plate (904), a second adjusting cylinder (905) and a buffer (906), a driving end of the first adjusting cylinder (901) is provided with the connecting plate (902), the surface of the connecting plate (902) is provided with the XYZ fine adjustment platform (903), the cylinder mounting plate (904) is arranged on the XYZ fine adjustment platform (903), the surface of the cylinder mounting plate (904) is provided with the second adjusting cylinder (905), and a driving end of the second adjusting cylinder (905) is provided with the buffer (906).

3. A positioning and automatic pressing mechanism for spot welding of copper sheets according to claim 2, characterized in that: The first adjusting cylinder (901) is arranged at the back of the placing jig (8).

4. The positioning and automatic pressing mechanism for spot welding of copper sheet according to claim 2, characterized in that: A fixing block (10) and an adjusting plate (11) are further arranged between the second adjusting cylinder (905) and the buffer (906), and the fixing block (10) and the adjusting plate (11) are connected together through bolts.

5. A positioning and automatic pressing mechanism for spot welding of copper sheets according to claim 4, characterized in that: The surface of the adjusting plate (11) is further provided with a long hole (12), and the bolts are screwed on the fixing block (10) through the long hole (12).

6. A positioning and automatic pressing mechanism for spot welding of copper sheets according to claim 1, characterized in that: The surface of the placing jig (8) is provided with a plurality of suction cups (13) and positioning pins (14).

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