Seam welding machine head and seam welding machine

Abstract

The utility model relates to a seam welding machine head and a seam welding machine, the seam welding machine head comprises a mounting plate, a lifting driving part, an electrode wheel assembly and a pressure detection assembly, the lifting driving part comprises a lifting driving motor connected to the mounting plate and a transmission piece connected to the output end of the lifting driving motor; the electrode wheel assembly comprises a pneumatic clamping jaw and two electrode wheel bodies, and the electrode wheel bodies are connected to the output end of the pneumatic clamping jaw; the pressure detection assembly comprises a pressure sensor, an upper connecting sleeve and a lower connecting sleeve, the upper end and the lower end of the pressure sensor are sleeved with the upper connecting sleeve and the lower connecting sleeve respectively, the upper connecting sleeve is connected to the transmission piece, and the lower connecting sleeve is connected to the pneumatic clamping jaw. The seam welding machine head provided by the utility model can adapt to welding products with diversified specifications, is small in occupied space, can detect seam welding pressure through the pressure detection assembly, ensures proper pressure, and improves the welding yield of the products.

Description

Technical Field

[0001] The utility model relates to the technical field of seam welding, in particular to a seam welding head and a seam welding machine. Background Art

[0002] Seam welding machines are mainly used for packaging integrated circuit chips. After the tube shell and cover plate to be seam welded are aligned by an automatic feeding device, they are fixed to the welding fixture, and then the seam welding head equipped with an electrode wheel is pressed down to perform spot welding and seam welding operations on each tube shell and cover plate in turn. Due to the diversity of seam welding product specifications, how to make the seam welding head flexibly adapt to products of various specifications while reducing space occupancy is an issue that needs to be considered urgently; on the other hand, the packaging surface is usually set very thin. If the pressure of the electrode wheel is not properly controlled, it is easy to cause poor welding. For example, if the pressure is too high, it is easy to cause cracking or penetration of the tube shell, and if the pressure is too low, the weld quality requirements cannot be met. Therefore, how to improve the yield of seam welding products by controlling the welding pressure has become an issue that needs to be solved urgently. Utility Model Content

[0003] The purpose of the utility model is to provide a seam welding head and a seam welding machine, which can at least solve one of the technical problems mentioned in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a seam welding head, comprising a mounting plate, a lifting drive part, an electrode wheel assembly and a pressure detection assembly, the lifting drive part comprising a lifting drive motor connected to the mounting plate and a transmission member connected to the output end of the lifting drive motor; the electrode wheel assembly comprising a pneumatic clamp and two electrode wheel bodies, the electrode wheel bodies being connected to the output end of the pneumatic clamp; the pressure detection assembly comprising a pressure sensor and an upper connecting sleeve and a lower connecting sleeve respectively sleeved on the upper and lower ends of the pressure sensor, the upper connecting sleeve being connected to the transmission member, and the lower connecting sleeve being connected to the pneumatic clamp.

[0005] As a preferred solution, the transmission member includes a ball screw connected to the output end of the lifting drive motor, the nut end of the ball screw is connected to a nut connecting plate, the nut connecting plate is connected to a transmission shaft, and the transmission shaft is connected to a connecting sleeve.

[0006] As a preferred solution, the transmission member also includes a guide rail connected to the mounting plate and a sliding block slidably connected to the guide rail, the guide rail is arranged parallel to one side of the ball screw, and the sliding block is connected to the nut connecting plate.

[0007] As a preferred solution, the seam welding head also includes a rotation drive unit, which includes a rotation drive motor and a hollow rotating platform connected to its output end, the hollow rotating platform is connected to a mounting plate, the turntable of the hollow rotating platform is connected to a linear bearing that slides with the transmission shaft, and also includes a rotation mating part connected between the transmission shaft and the nut connecting plate.

[0008] As a preferred solution, the rotating fitting includes a bearing seat, a bearing and a connecting shaft connected to the inner ring of the bearing, the transmission shaft is connected to the bearing seat, and the connecting shaft is connected to the nut connecting plate.

[0009] As a preferred solution, the transmission shaft is provided with a groove along the height direction, and the inner wall of the linear bearing is provided with a protrusion matched with the groove along the height direction.

[0010] The utility model also provides a technical solution of a seam welding machine, comprising the seam welding machine head described in any of the above solutions.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1) The seam welding head provided by the utility model adds a rotation control structure on the basis of the lifting and opening and closing control of the electrode wheel, so that the movement of the electrode wheel is more flexible and more suitable for welding products with diversified specifications. At the same time, the structures of the rotation drive part and the lifting drive part are integrated with each other, which greatly reduces the space occupation;

[0013] 2) The utility model can detect the seam welding pressure by connecting a pressure detection component to the lifting drive structure to ensure that the pressure is appropriate and improve the product welding yield. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall structure of the seam welding machine head in the embodiment of the utility model;

[0015] Figure 2 A cross-sectional view of a seam welding machine head in an embodiment of the utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the electrode wheel assembly in the embodiment of the utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the transmission shaft in the embodiment of the utility model;

[0018] Figure 5 It is a schematic diagram of the structure of the linear bearing in the embodiment of the utility model.

[0019] The meaning of each number in the figure is:

[0020] 1. Mounting plate; 2. Electrode wheel assembly; 21. Pneumatic clamp; 22. Electrode wheel mounting seat; 23. Electrode wheel body; 24. Electrode insulating sleeve;

[0021] 3. Lifting drive unit; 31. Lifting drive motor; 32. Motor mounting seat; 33. Coupling; 34. Ball screw; 35. Support seat; 36. Nut connecting plate; 37. Transmission shaft; 371. Groove; 38. Guide rail; 39. Sliding block;

[0022] 4. Rotation drive unit; 41. Rotation drive motor; 42. Hollow rotating platform; 43. Turntable mounting seat; 44. Linear bearing; 441. Protrusion; 45. Bearing seat; 46. Bearing; 47. Connecting shaft;

[0023] 5. Pressure detection assembly; 51. Pressure sensor; 52. Upper connecting sleeve; 53. Lower connecting sleeve. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0026] See also Figure 1-Figure 2 The present embodiment discloses a seam welding machine head, including a mounting plate 1, which is vertically arranged, and is connected to an electrode wheel assembly 2 through the mounting plate 1, as well as a lifting drive unit 3 and a rotation drive unit 4 for driving the electrode wheel assembly 2 to lift and rotate respectively, and also includes a pressure detection assembly 5 for seam welding pressure detection, the pressure detection assembly 5 is connected to the electrode wheel assembly 2, and is lifted or rotated synchronously with the electrode wheel assembly 2.

[0027] For details, see Figure 3The electrode wheel assembly 2 includes a pneumatic clamp 21 and two electrode wheel mounting seats 22 fixedly connected to the output end of the pneumatic clamp 21, and an electrode wheel body 23 is mounted on the electrode wheel mounting seat 22 through an electrode insulating sleeve 24. The opening and closing of the two electrode wheel bodies 23 are controlled by the pneumatic clamp 21. Compared with the traditional structure of translation control by a lead screw, the present embodiment uses the pneumatic clamp 21 to control the movement of the two electrode wheel bodies 23, which saves more space and is more convenient to operate.

[0028] The lifting drive unit 3 and the rotation drive unit 4 are respectively connected to the mounting plate 1 , and the two structures cooperate with each other to realize the lifting and rotation control of the electrode wheel assembly 2 .

[0029] See again Figure 1 The lifting drive unit 3 includes a lifting drive motor 31 fixedly connected to the top of the mounting plate 1 through a motor mounting seat 32, and a transmission member connected to the output end of the lifting drive motor 31 for power transmission, wherein the transmission member is connected to the pressure detection component 5 and is used to drive the pressure detection component 5 and the pneumatic clamp 21 to lift and lower.

[0030] Specifically, the transmission component includes a ball screw 34 fixedly connected to the output end of the lifting drive motor 31 through a coupling 33. The ball screw 34 is rotatably connected to the side end of the mounting plate 1 through two support seats 35. The nut end of the ball screw 34 is fixedly connected to a nut connecting plate 36. The nut connecting plate 36 is connected to the pressure detection component 5 through a transmission shaft 37, thereby driving the pressure detection component 5 and the pneumatic clamp 21 to rise and fall.

[0031] To ensure the motion accuracy, the transmission member also includes a guide rail 38 fixedly connected to the side end of the mounting plate 1 and a sliding block 39 slidably connected thereto. The guide rail 38 is arranged on one side of the ball screw 34 and is parallel to the ball screw 34. The side end of the nut connecting plate 36 is fixedly connected to the sliding block 39. The ball screw 34 is driven to rotate by the lifting drive motor 31, thereby driving the nut connecting plate 36 to stably lift and lower with the sliding block 39 as the motion guide.

[0032] See also Figure 1 The rotation driving part 4 includes a rotation driving motor 41 and a hollow rotating platform 42 connected to the output end thereof. The hollow rotating platform 42 is fixedly connected to the mounting plate 1 through a turntable mounting seat 43. The turntable mounting seat 43 is arranged below the ball screw 34. The turntable of the hollow rotating platform 42 is fixedly connected to a linear bearing 44, and the transmission shaft 37 is slidably connected to the direct bearing. To cooperate with the rotation movement, the top end of the transmission shaft 37 is connected to the nut connecting plate 36 through a rotating matching piece. Combined Figure 2The rotating fittings include a bearing seat 45, a bearing 46 rotatably mounted in the bearing seat 45, and a connecting shaft 47 connected to the inner ring of the bearing 46. The specific structure is that the top of the transmission shaft 37 is provided with a top thread and connected to the bearing seat 45 through the top thread, the bearing seat 45 is rotatably connected to the connecting shaft 47 through the bearing 46, and the top of the connecting shaft 47 is fixedly connected to the nut connecting plate 36, so that the transmission shaft 37 and the bearing seat 45 can rotate synchronously.

[0033] See also Figure 4 and Figure 5 It should be noted that the two side ends of the transmission shaft 37 are respectively provided with grooves 371 distributed along the height direction. Correspondingly, the inner wall of the linear bearing 44 is provided with a protrusion 441 matched with the groove 371 along the height direction. The protrusion 441 and the groove 371 cooperate to transmit the rotational torque to the transmission shaft 37, and drive the linear bearing 44 and the transmission shaft 37 to rotate synchronously through the hollow rotating platform 42.

[0034] In this embodiment, the pressure detection assembly 5 is connected between the transmission shaft 37 and the pneumatic clamp 21. The pressure detection assembly 5 includes a pressure sensor 51 and an upper connecting sleeve 52 and a lower connecting sleeve 53 for fixing the pressure sensor 51. The upper connecting sleeve 52 and the lower connecting sleeve 53 are respectively sleeved at both ends of the pressure sensor 51. The specific structure is that the bottom end of the transmission shaft 37 is provided with a bottom thread, which is fixedly connected to the top end hole of the upper connecting sleeve 52 through the bottom thread, and the lower connecting sleeve 53 is fixedly connected to the top end of the pneumatic clamp 21. The pressure detection assembly 5 is synchronously lifted and rotated with the electrode wheel assembly 2, and is used for seam welding pressure detection, and cooperates with the lifting drive to ensure appropriate welding pressure.

[0035] The seam welding head provided in this embodiment adds a rotation control structure on the basis of the lifting and opening and closing control of the electrode wheel, so that the movement of the electrode wheel is more flexible and more suitable for welding products with diverse specifications. At the same time, the structures of the rotation drive part 4 and the lifting drive part 3 are coordinated and integrated with each other, which greatly reduces the space occupied. On the other hand, this embodiment can detect the seam welding pressure and improve the product welding yield by connecting the pressure detection component 5 to the lifting drive structure.

[0036] The above shows and describes the basic principle, 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 preferred examples of the utility model and are not used to limit 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 of the utility model is defined by the attached claims and their equivalents.

Claims

1. A seam welding head, characterized in that: include: Mounting plate (1); A lifting drive unit (3) comprising a lifting drive motor (31) connected to the mounting plate (1) and a transmission member connected to an output end of the lifting drive motor (31); An electrode wheel assembly (2) comprises a pneumatic clamp (21) and two electrode wheel bodies (23), wherein the electrode wheel bodies (23) are connected to the output ends of the pneumatic clamp (21); The pressure detection assembly (5) comprises a pressure sensor (51) and an upper connecting sleeve (52) and a lower connecting sleeve (53) respectively sleeved on the upper and lower ends of the pressure sensor (51); the upper connecting sleeve (52) is connected to a transmission member, and the lower connecting sleeve (53) is connected to a pneumatic clamp (21).

2. The seam welding head according to claim 1, characterized in that: The transmission member comprises a ball screw (34) connected to the output end of the lifting drive motor (31), the nut end of the ball screw (34) is connected to a nut connecting plate (36), the nut connecting plate (36) is connected to a transmission shaft (37), and the transmission shaft (37) is connected to a connecting sleeve (52).

3. The seam welding head according to claim 2, characterized in that: The transmission member also includes a guide rail (38) connected to the mounting plate (1) and a sliding block (39) slidably connected to the guide rail (38); the guide rail (38) is arranged parallel to one side of the ball screw (34); and the sliding block (39) is connected to the nut connecting plate (36).

4. The seam welding head according to claim 2, characterized in that: The seam welding machine head also includes a rotation driving unit (4), the rotation driving unit (4) includes a rotation driving motor (41) and a hollow rotating platform (42) connected to the output end thereof, the hollow rotating platform (42) is connected to the mounting plate (1), the turntable of the hollow rotating platform (42) is connected to a linear bearing (44) that is slidably matched with the transmission shaft (37), and also includes a rotation matching part connected between the transmission shaft (37) and the nut connecting plate (36).

5. The seam welding head according to claim 4, characterized in that: The rotating fitting comprises a bearing seat (45), a bearing (46) and a connecting shaft (47) connected to the inner ring of the bearing (46); the transmission shaft (37) is connected to the bearing seat (45); and the connecting shaft (47) is connected to the nut connecting plate (36).

6. The seam welding head according to claim 4, characterized in that: The transmission shaft (37) is provided with a groove (371) along the height direction, and the inner wall of the linear bearing (44) is provided with a protrusion (441) matching the groove (371) along the height direction.

7. A seam welding machine, characterized in that: The invention comprises the seam welding head as described in any one of claims 1 to 6.

Images