Solder strip hammering and flattening mechanism

Abstract

The utility model belongs to the technical field of photovoltaic assembly manufacturing, and particularly relates to a welding strip hammering mechanism which comprises a bearing bottom plate fixedly connected to a supporting seat. The side beams are fixedly connected to the bearing bottom plate; the top fixing plate is fixedly connected to the measuring top; the pressure head is connected to the side beam in a sliding manner; the driving unit is installed on the top fixing plate and used for driving the pressing head to move towards the bearing bottom plate; the connecting rod mechanism is driven to move through output of the air cylinder, the pressing head can move towards the bearing bottom plate by a fixed stroke through transmission of force of the connecting rod mechanism, pressure is applied to the welding strip after the pressing head makes contact with the welding strip, the flattening effect on the welding strip is achieved, and due to the limiting groove between the bearing bottom plate and the pressing head, it can be guaranteed that the thickness of the welding strip is consistent when the welding strip is flattened; and the problem of inconsistent thickness is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of photovoltaic component manufacturing, in particular to a welding strip hammer flattening mechanism. Background Art

[0002] In the field of photovoltaic production, in order to improve the photoelectric conversion rate per unit area of ​​photovoltaic modules, when the solder ribbon is welded to the battery cell, the solder ribbon section at the flattened area of ​​the solder ribbon will usually produce tinning due to the heat during welding, causing the overlapping area to become thicker, thereby increasing the cracking rate of the subsequent process.

[0003] In order to effectively prevent the cracks at the connection between two adjacent battery cells in a battery string, it is necessary to flatten the middle section of the welding strip, and use the welding strip to connect the two battery cells with overlapping edges, and the flattened middle section of the welding strip is located in the overlapping area of ​​the two battery cells; the existing technology mainly uses a motor to drive the crank connecting rod to make an up and down reciprocating motion to achieve the flattening of the overlapping area of ​​the welding strip;

[0004] However, the equipment used to flatten the welding strip in the prior art requires a large space and is high in cost. It can only perform up and down reciprocating motion within a certain stroke and cannot guarantee the thickness of the welding strip after being flattened. As a result, the thickness of the overlapping areas of welding strips of different thicknesses are inconsistent after being flattened, and the problem of cracking still exists.

[0005] To this end, the utility model provides a welding strip hammer flattening mechanism. Utility Model Content

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the utility model to solve the technical problem is: a welding strip hammer flattening mechanism described in the utility model comprises:

[0008] A receiving base plate fixedly connected to the supporting seat;

[0009] A side beam fixedly connected to the receiving bottom plate;

[0010] A top fixing plate fixed to the top of the side beam;

[0011] A pressure head slidably connected to the side beam;

[0012] A driving unit installed on the top fixing plate is used to drive the pressure head to move toward the receiving bottom plate;

[0013] The driving unit comprises a plurality of cylinders and a connecting rod mechanism; the plurality of cylinders are fixedly connected to the top fixing plate; the output end of the cylinder is hinged to one end of the connecting rod mechanism, and the other end of the connecting rod mechanism squeezes the pressure head to move toward the receiving bottom plate.

[0014] Preferably, the connecting rod mechanism includes an output arm, a swing arm, a connecting rod, a bent rod and a pressure rod; the output arm is hinged to the output end of the cylinder; one end of the swing arm is hinged to the bottom of the output arm, and the other end of the swing arm is hinged to one side of the top fixing plate; one end of the connecting rod is hinged to the swing arm and faces away from the output arm; the other end of the connecting rod is hinged to one end of the bent rod; the middle part of the bent rod is hinged to the top of the pressure head, and the other end of the bent rod is hinged with a pressure rod; the pressure rod is fixed to the side of the pressure head.

[0015] Preferably, a plurality of spring sleeves are fixedly connected to the top of the pressure head, and the middle portion of the bent rod is hinged to the top of the spring sleeve.

[0016] Preferably, the driving unit further comprises a fixing plate; the fixing plate is fixedly connected to the side of the top fixing plate; the other end of the swing arm is hingedly connected to the bottom of the fixing plate; two fixing plates are arranged and are symmetrically fixedly connected to the sides on both sides of the top fixing plate.

[0017] Preferably, a support plate is also fixedly connected to the top of the top fixing plate; a branch block and a pressure regulating valve are fixedly connected to the top of the support plate, the pressure regulating valve is connected to the branch block, and the branch block is used to evenly distribute the main gas path to multiple cylinders.

[0018] Preferably, connecting arms are slidably connected to both sides of the pressure head, and the connecting arms are fixedly connected to the side beams.

[0019] The beneficial effects of the utility model are as follows:

[0020] 1. The welding strip hammering and flattening mechanism described in the utility model drives the connecting rod mechanism to move through the cylinder output, and through the transmission of the connecting rod mechanism force, the pressure head can move a fixed stroke toward the receiving bottom plate, and after contacting the welding strip, the pressure is applied to the welding strip to achieve the effect of hammering and flattening the welding strip. Due to the limit groove between the receiving bottom plate and the pressure head, the thickness of the welding strip can be ensured to be consistent when hammering and flattening, and the problem of inconsistent thickness will not occur;

[0021] 2. The welding strip hammering flattening mechanism described in the utility model is equipped with a connecting rod mechanism and a spring sleeve. When a welding strip is hammered flat, the output end of the cylinder lifts the output arm, and the bent rod is used to drive the pressure rod to squeeze the pressure head and move it toward the receiving bottom plate. At this time, the spring sleeve is stretched to generate elastic potential energy. After the welding strip is hammered flat, the pressure rod no longer applies pressure to the pressure head. At this time, under the action of the elastic potential energy of the spring sleeve, the pressure head rebounds to a high position, which is beneficial to the continuous processing of the welding strip. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The utility model will be further described below in conjunction with the accompanying drawings.

[0023] Figure 1 It is a three-dimensional diagram of the utility model;

[0024] Figure 2It is a partial stereogram of the utility model;

[0025] Figure 3 It is the front view in the utility model;

[0026] Figure 4 yes Figure 3 Sectional view at AA in the middle;

[0027] In the figure: 1. pressure regulating valve; 2. branch block; 21. support plate; 3. cylinder; 4. connecting rod mechanism; 41. fixed plate; 42. swing arm; 43. connecting rod; 44. bent rod; 45. pressure plate; 46. output arm; 5. spring sleeve; 6. pressure head; 7. receiving bottom plate; 71. support seat; 8. side beam; 81. connecting arm; 9. top fixing plate. DETAILED DESCRIPTION

[0028] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0029] like Figure 1 to Figure 2 As shown, a welding strip hammer flattening mechanism described in an embodiment of the utility model includes:

[0030] A receiving base plate 7 fixedly connected to the support seat 71;

[0031] A side beam 8 fixedly connected to the receiving bottom plate 7;

[0032] A top fixing plate 9 fixedly connected to the top of the side beam 8;

[0033] A pressure head 6 slidably connected to the side beam 8;

[0034] A driving unit installed on the top fixing plate 9 is used to drive the pressure head 6 to move toward the receiving bottom plate 7;

[0035] The driving unit includes multiple cylinders 3 and a connecting rod mechanism 4; the multiple cylinders 3 are fixed on the top fixing plate 9; the output end of the cylinder 3 is hinged to one end of the connecting rod mechanism 4, and the other end of the connecting rod mechanism 4 squeezes the pressure head 6 to move toward the receiving bottom plate 7.

[0036] When the welding strip hammering and flattening mechanism provided by the utility model is used, the welding strip is placed between the pressure head 6 and the receiving bottom plate 7, and the connecting rod mechanism 4 is driven to move by the output of the cylinder 3, and the force of the connecting rod mechanism 4 is transmitted, so that the pressure head 6 can move a fixed stroke toward the receiving bottom plate 7, and after contacting the welding strip, pressure is applied to the welding strip to achieve the effect of hammering and flattening the welding strip. Due to the limit groove between the receiving bottom plate 7 and the pressure head 6, the thickness of the welding strip can be ensured to be consistent when hammering and flattening, and the problem of inconsistent thickness will not occur;

[0037] The limiting groove is arranged on the receiving bottom plate 7, and the final thickness of the welding strip is consistent with the depth of the limiting groove.

[0038] like Figures 2 to 4 As shown, the connecting rod mechanism 4 includes an output arm 46, a swing arm 42, a connecting rod 43, a bent rod 44 and a pressure rod; the output arm 46 is hinged to the output end of the cylinder 3; one end of the swing arm 42 is hinged to the bottom of the output arm 46, and the other end of the swing arm 42 is hinged to one side of the top fixing plate 9; one end of the connecting rod 43 is hinged to the swing arm 42 and away from the output arm 46; the other end of the connecting rod 43 is hinged to one end of the bent rod 44; the middle part of the bent rod 44 is hinged to the top of the pressure head 6, and the other end of the bent rod 44 is hinged with a pressure rod; the pressure rod is fixed to the side of the pressure head 6.

[0039] The utility model provides a welding strip hammering mechanism in which a plurality of connecting rod mechanisms 4 are arranged at the bottom of the top fixing plate 9, and correspond one to one with a plurality of cylinders 3, and a plurality of connecting rod mechanisms 4 are staggeredly arranged at both sides of the bottom of the top fixing plate 9; in actual use, the output end of the cylinder 3 is used to lift the output arm 46, and then the deflection of the swing arm 42 drives the connecting rod 43 to lift, and by utilizing the lever principle, after the connecting rod 43 is lifted, one end of the bent rod 44 can be pulled, so that the pressure rod at the other end of the bent rod 44 can squeeze the pressure head 6 downward and move toward the receiving bottom plate 7, thereby achieving the effect of hammering the welding strip, and conversely, when the output end of the cylinder 3 is displaced downward, the pressure rod at the other end of the bent rod 44 does not apply pressure to the pressure head 6.

[0040] like Figures 1 to 4 As shown, a plurality of spring sleeves are fixedly connected to the top of the pressure head 6, and the middle portion of the bent rod 44 is hinged to the top of the spring sleeve.

[0041] When the connecting rod mechanism 4 in the welding strip flattening mechanism provided by the utility model is in use, when a welding strip is flattened, the output end of the cylinder 3 lifts the output arm 46, and the bent rod 44 is used to drive the pressure rod to squeeze the pressure head 6 and move it toward the receiving bottom plate 7. At this time, the spring sleeve is stretched to generate elastic potential energy. After the welding strip is flattened, the pressure rod no longer applies pressure to the pressure head 6. At this time, under the action of the elastic potential energy of the spring sleeve, the pressure head 6 rebounds to a high position, which is beneficial to the continuous processing of the welding strip.

[0042] like Figure 1 to Figure 2 As shown, the driving unit also includes a fixing plate 41; the fixing plate 41 is fixedly connected to the side of the top fixing plate 9; the other end of the swing arm 42 is hinged to the bottom of the fixing plate 41; two fixing plates 41 are provided, and are symmetrically fixed to the sides of both sides of the top fixing plate 9.

[0043] The fixed plate 41 in the welding strip hammer flattening mechanism provided by the utility model is used to connect the swing arm 42, and the swing arm 42 and the fixed plate 41 are hinged by a pin shaft. Since a plurality of connecting rod mechanisms 4 are staggeredly arranged on both sides of the top fixing plate 9, two fixed plates 41 are provided, which are symmetrically fixed on both sides of the top fixing plate 9. When the output arm 46 moves, the swing arm 42 can be driven to rotate around the pin shaft. Since the connecting rod 43 is hinged at one end of the swing arm 42 close to the pin shaft and its position is fixed, when the swing arm 42 rotates, the height of the hinge position of the connecting rod 43 and the swing arm 42 changes, and then the displacement of the connecting rod 43 can be used to continue to drive the movement of the curved rod 44, thereby realizing the displacement of the pressure head 6.

[0044] like Figure 1 to Figure 2 As shown, the top of the top fixing plate 9 is also fixedly connected to a support plate 21; the top of the support plate 21 is fixedly connected to a branch block 2 and a pressure regulating valve 1, the pressure regulating valve 1 is connected to the branch block 2, and the branch block 2 is used to evenly distribute the main gas path to multiple cylinders 3.

[0045] The pressure regulating valve 1 in the welding strip flattening mechanism provided by the utility model can evenly divide the main air circuit connected to the outside into multiple branch air circuits, each branch air circuit corresponds to a cylinder 3, and multiple cylinders 3 achieve equal output strokes through the pressure regulating valve 1 and the branch block 2, which is conducive to driving the pressure head 6 to move in parallel and keep the thickness of each point of the welding strip consistent after being hammered flat.

[0046] like Figure 1 to Figure 2 As shown, connecting arms 81 are slidably connected to both sides of the pressure head 6 , and the connecting arms 81 are fixedly connected to the side beam 8 .

[0047] The connecting arm 81 in the welding strip flattening mechanism provided by the utility model is used to connect the pressing head 6 and plays a role of limiting and guiding the displacement of the pressing head 6.

[0048] Working principle: The equipment used to flatten the welding strip in the prior art requires a large space and is high in cost. It can only perform up and down reciprocating motion within a certain stroke and cannot guarantee the thickness of the welding strip after being flattened. As a result, the thickness of the overlapping areas of welding strips of different thicknesses are inconsistent after being flattened, and the problem of cracks still exists.

[0049] When the welding strip hammering and flattening mechanism provided by the utility model is used, the welding strip is placed between the pressure head 6 and the receiving bottom plate 7, and the output of the cylinder 3 is used to drive the connecting rod mechanism 4 to move, and through the transmission of the force of the connecting rod mechanism 4, the pressure head 6 can move a fixed stroke toward the receiving bottom plate 7, and after contacting the welding strip, pressure is applied to the welding strip to achieve the hammering and flattening effect of the welding strip. Due to the limiting groove between the receiving bottom plate 7 and the pressure head 6, the thickness of the welding strip can be guaranteed to be consistent when the welding strip is hammered and flattened, and the problem of inconsistent thickness will not occur; wherein the limiting groove is set on the receiving bottom plate 7, and the final thickness of the welding strip is consistent with the depth of the limiting groove;

[0050] A plurality of connecting rod mechanisms 4 are provided at the bottom of the top fixing plate 9, and correspond to the plurality of cylinders 3 one by one, and the plurality of connecting rod mechanisms 4 are staggeredly arranged on both sides of the bottom of the top fixing plate 9; in actual use, the output end of the cylinder 3 is used to lift the output arm 46, and then the deflection of the swing arm 42 drives the connecting rod 43 to lift up, and by using the lever principle, after the connecting rod 43 is lifted up, one end of the bent rod 44 can be pulled, so that the pressure rod at the other end of the bent rod 44 can press the pressure head 6 downward to move toward the receiving bottom plate 7, thereby realizing the hammering flattening of the welding strip. Effect, on the contrary, when the output end of the cylinder 3 moves downward, the pressure rod at the other end of the bent rod 44 does not apply pressure to the pressure head 6. When a welding strip is hammered flat, the output end of the cylinder 3 lifts the output arm 46, and uses the bent rod 44 to drive the pressure rod to squeeze the pressure head 6 and move it toward the receiving bottom plate 7. At this time, the spring sleeve is stretched to generate elastic potential energy. After the welding strip is hammered flat, the pressure rod no longer applies pressure to the pressure head 6. At this time, under the action of the elastic potential energy of the spring sleeve, the pressure head 6 rebounds to a high position, which is conducive to the continuous processing of the welding strip.

[0051] In addition, the fixed plate 41 is used to connect the swing arm 42, and the swing arm 42 and the fixed plate 41 are hinged by a pin shaft. Since multiple connecting rod mechanisms 4 are staggered on both sides of the top fixing plate 9, two fixed plates 41 are provided, which are symmetrically fixed on both sides of the top fixing plate 9. When the output arm 46 moves, it can drive the swing arm 42 to rotate around the pin shaft. Since the connecting rod 43 is hinged at one end of the swing arm 42 close to the pin shaft and its position is fixed, when the swing arm 42 rotates, the height of the hinge position of the connecting rod 43 and the swing arm 42 changes, and then the displacement of the connecting rod 43 can be used to continue to drive the movement of the curved rod 44, thereby realizing the displacement of the pressure head 6.

[0052] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A welding strip hammer flattening mechanism, comprising: A receiving bottom plate (7) fixedly connected to the supporting seat (71); A side beam (8) fixedly connected to the receiving bottom plate (7); A top fixing plate (9) fixedly connected to the top of the side beam (8); A pressure head (6) slidably connected to the side beam (8); A driving unit mounted on the top fixing plate (9) and used for driving the pressure head (6) to move toward the receiving bottom plate (7); Features: The drive unit comprises a plurality of cylinders (3) and a connecting rod mechanism (4); the plurality of cylinders (3) are fixedly connected to a top fixing plate (9); the output end of the cylinder (3) is hingedly connected to one end of the connecting rod mechanism (4), and the other end of the connecting rod mechanism (4) squeezes the pressure head (6) to move toward the receiving bottom plate (7).

2. A welding strip flattening mechanism according to claim 1, characterized in that: The connecting rod mechanism (4) comprises an output arm (46), a swing arm (42), a connecting rod (43), a bent rod (44) and a pressure rod; the output arm (46) is hinged to the output end of the cylinder (3); one end of the swing arm (42) is hinged to the bottom of the output arm (46), and the other end of the swing arm (42) is hinged to one side of the top fixing plate (9); one end of the connecting rod (43) is hinged to the swing arm (42) and faces away from the output arm (46); the other end of the connecting rod (43) is hinged to one end of the bent rod (44); the middle part of the bent rod (44) is hinged to the top of the pressure head (6), and the other end of the bent rod (44) is hinged to the pressure rod; the pressure rod is fixed to the side of the pressure head (6).

3. A welding strip flattening mechanism according to claim 2, characterized in that: A plurality of spring sleeves are fixedly connected to the top of the pressure head (6), and the middle portion of the bent rod (44) is hinged to the top of the spring sleeve.

4. A welding strip hammer flattening mechanism according to claim 3, characterized in that: The drive unit further comprises a fixing plate (41); the fixing plate (41) is fixedly connected to the side of the top fixing plate (9); the other end of the swing arm (42) is hinged to the bottom of the fixing plate (41); two fixing plates (41) are provided and are symmetrically fixedly connected to the side edges of both sides of the top fixing plate (9).

5. A welding strip flattening mechanism according to claim 4, characterized in that: The top of the top fixing plate (9) is also fixedly connected to a support plate (21); the top of the support plate (21) is fixedly connected to a branch block (2) and a pressure regulating valve (1); the pressure regulating valve (1) is connected to the branch block (2), and the branch block (2) is used to evenly distribute the main gas path to a plurality of cylinders (3).

6. A welding strip flattening mechanism according to claim 5, characterized in that: Connecting arms (81) are slidably connected to both sides of the pressure head (6), and the connecting arms (81) are fixedly connected to the side beams (8).

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