Cylinder spot welding equipment

Abstract

The invention belongs to the technical field of spot welding equipment, and particularly relates to cylinder spot welding equipment which comprises a conveying channel, a carrying mechanism, a positioning mechanism and a spot welding mechanism, a clamping plate is arranged in the conveying channel, bayonets are formed in the two sides of the clamping plate, one bayonet is higher than the other bayonet, the two bayonets are arranged in an up-down crossed mode, and the conveying channel is provided with a feeding port and a discharging port. A cylinder is arranged in the conveying channel from the feeding port, the two ends of the cylinder extend into the corresponding clamping ports respectively, the positioning mechanism is arranged on the outer side of the discharging port, and the carrying mechanism is configured to execute the action of pushing the cylinder to move from the feeding port to the discharging port to abut against the positioning mechanism and the action of pushing the cylinder to penetrate through the discharging port. The spot welding mechanism is arranged on the outer side of the discharging opening and used for welding the two ends of the cylinder. Through cooperation of the conveying channel, the carrying mechanism, the spot welding mechanism and the positioning mechanism, spot welding work of the two ends of the cylinder is achieved, the spot welding machine has the advantages of being high in automation degree and precision, and the production cost is greatly reduced.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of spot welding equipment, and particularly relates to a cylindrical spot welding equipment. BACKGROUND

[0002] In the manufacturing field of hardware products, household appliances and automobile parts, cylindrical metal workpieces are widely used. Such workpieces often need to be spot welded at both ends in production to connect end covers, electrodes or other components. At present, spot welding of cylindrical workpieces is mostly completed by manual operation or semi-automatic equipment. When manually operated, the worker places the workpiece in the welding station and starts the welding machine. This method not only has low production efficiency and high labor intensity, but also is difficult to ensure the consistency of the placement position each time, resulting in unstable welding quality. SUMMARY

[0003] The present application aims to provide a cylindrical spot welding equipment that can solve the above problems.

[0004] To achieve the above-mentioned purpose, the present application provides a cylindrical spot welding equipment, which comprises: A conveying channel is provided with a clamping plate arranged along the axial direction thereof, and the two sides of the clamping plate are provided with a bayonet arranged along the length direction thereof, one of the two bays is higher than the other, and the two bays are arranged in an up-down crossing manner. The conveying channel has an inlet and an outlet, and a cylindrical workpiece is placed in the conveying channel from the inlet, and the two ends of the cylindrical workpiece respectively extend into the corresponding bays. A carrying mechanism and a positioning mechanism are provided outside the outlet, the positioning mechanism has an open state and a closed state, and the carrying mechanism is configured to perform the action of pushing the cylindrical workpiece from the inlet to the position where the positioning mechanism abuts against the outlet when the positioning mechanism is in the closed state, and the action of pushing the cylindrical workpiece through the outlet when the positioning mechanism switches from the closed state to the open state. A spot welding mechanism is provided outside the outlet for welding the two ends of the cylindrical workpiece.

[0005] Optionally, a connecting rod is further provided, which is arranged along the conveying direction of the cylindrical workpiece and is spaced apart around the axial direction of the cylindrical workpiece to enclose the conveying channel.

[0006] Optionally, the positioning mechanism comprises a fixed seat, a connecting piece, a first driving device and a positioning arm, the first driving device is mounted on the fixed seat, the two ends of the connecting piece are respectively rotatably connected with the positioning arm and the fixed seat, the upper end of the positioning arm is rotatably connected with the output end of the first driving device, and the first driving device can push the positioning arm to rotate downward so that the other end of the positioning arm can abut against one end of the cylindrical workpiece extending out of the outlet.

[0007] Optionally, the first driving device is a pneumatic cylinder.

[0008] Optionally, the carrying mechanism comprises a second driving device, a mounting base and a first pushing arm, the mounting base is located above the clamping plate, the first pushing arm is vertically and rotatably arranged at one end of the mounting base close to the feeding port, the first pushing arm extends into the conveying channel, the mounting base is provided with a first limiting wall, the first limiting wall is located at one side of the first pushing arm close to the feeding port, the first limiting wall is used for limiting the swinging of the first pushing arm towards the feeding port, and the second driving device can drive the mounting base to move along the conveying direction of the cylinder.

[0009] Optionally, the carrying mechanism further comprises a second pushing arm, the second pushing arm is vertically and rotatably arranged at one end of the mounting base close to the discharging port, the second pushing arm extends into the conveying channel, the distance between the second pushing arm and the first pushing arm is greater than the length of the cylinder, the mounting base is provided with a second limiting wall, the second limiting wall is located at one side of the second pushing arm close to the feeding port, the second limiting wall is used for limiting the swinging of the second pushing arm towards the feeding port, and the second pushing arm can swing towards the discharging port.

[0010] Optionally, the second driving device comprises a motor, a screw rod and a connecting base, the screw rod is rotatably arranged above the mounting base, a nut is matched with the screw rod, the connecting base is connected with the mounting base and the nut, and the motor is in transmission connection with one end of the screw rod.

[0011] Optionally, the spot welding mechanism comprises a third driving device, and a first electrode arm and a second electrode arm which are arranged in an up-down interval, the first electrode arm is arranged at the lower end of the clamping plate, and the end away from the feeding port is exposed outside through the discharging port, the exposed end of the first electrode arm is vertically provided with a first electrode, and the upper end of the first electrode is flush with the bottom wall of the lower cartridge; a second electrode corresponding to the first electrode is arranged on the second electrode arm, and the third driving device can drive the second electrode arm to move downwards.

[0012] Optionally, the third driving device is a pneumatic cylinder.

[0013] Optionally, a plurality of positioning wheels are arranged around the axis of the cylinder in an interval to enclose a space matched with the cylinder, and the positioning wheels are in rolling connection with the cylinder.

[0014] Compared with the prior art, the beneficial effects of the present invention are: by cooperating with the conveying channel, the carrying mechanism, the spot welding mechanism and the positioning mechanism, the spot welding work at both ends of the cylinder is achieved, which has the advantages of high automation and high precision, ensuring the yield rate and greatly reducing the production cost. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a side view of the present invention.

[0017] Figure 2 This is a perspective view of the present invention.

[0018] Figure 3 For example Figure 2 A magnified view of a portion of region A shown in the diagram.

[0019] Figure 4 For example Figure 2 A magnified view of region B shown in the diagram.

[0020] Figure 5 This is a schematic diagram of the push arm and mounting base in this invention.

[0021] Figure 6 This is a schematic diagram of the positioning mechanism in this invention.

[0022] Figure 7 This is a schematic diagram of the clamping plate in this invention.

[0023] In the picture: 100. Connecting rod; 110. Conveying channel; 111. Feed inlet; 112. Discharge outlet; 120. Clamping plate; 121. Bayonet; 200. Carrying mechanism; 210. Second drive device; 211. Motor; 212. Lead screw; 213. Nut; 214. Connecting seat; 220. Mounting seat; 221. First limiting wall; 222. Second limiting wall; 230. First push arm; 240. Second push arm; 300, Spot welding mechanism; 310, Third driving device; 320, First electrode arm; 321, First electrode; 330, Second electrode arm; 331, Second electrode; 400, Positioning mechanism; 410, Fixed base; 420, Connecting piece; 430, First driving device; 440, Positioning arm; 500, positioning wheels; 600. Chassis. Detailed Implementation

[0024] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain embodiments of the present invention, and should not be construed as limiting the present invention.

[0025] In the description of the embodiments of the present invention, it should be understood that if the embodiments of the present invention involve directional indications, such as up, down, left, right, front, back, inside, outside, etc., the orientation or positional relationship of the indications is based on the orientation or positional relationship shown in the accompanying drawings. This is only for the convenience of describing the embodiments of the present invention and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of the present invention.

[0026] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of the present invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0027] In this embodiment of the invention, unless otherwise explicitly specified and limited, terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part. They can be mechanical or electrical connections. They can be direct connections or indirect connections through an intermediate medium, and can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0028] like Figures 1 to 7 As shown, this embodiment of the invention provides a cylindrical spot welding device, including a conveying channel 110, a carrying mechanism 200, a spot welding mechanism 300, a positioning mechanism 400, a connecting rod 100, and a positioning wheel 500. The conveying channel 110, the carrying mechanism 200, the spot welding mechanism 300, the positioning mechanism 400, and the positioning wheel 500 are all mounted on a housing 600.

[0029] The conveying channel 110 is provided with a clamping plate 120 arranged along its axial direction. The clamping plate 120 has a slot 121 arranged along its length direction on both sides. One slot 121 is higher than the other slot 121, and the two slots 121 are arranged vertically. The conveying channel 110 has a feed inlet 111 and a discharge outlet 112. The cylinder is placed in the conveying channel 110 from the feed inlet 111, and its two ends extend into the corresponding slots 121 respectively. It should be noted that the two ends of the cylinder are vertically crossed after being wound and formed, and form the same spacing as the two slots 121.

[0030] The positioning mechanism 400 is located outside the discharge port 112. The positioning mechanism 400 has an open state and a closed state. The conveying mechanism 200 is configured to perform the action of pushing the cylinder from the feed port 111 to the discharge port 112 to abut against the positioning mechanism 400 when the positioning mechanism 400 is in the closed state, so as to position the cylinder and ensure the accuracy of subsequent welding. When the positioning mechanism 400 switches from the closed state to the open state, it pushes the cylinder through the discharge port 112 so that the spot welding mechanism 300 can weld the two ends of the cylinder at multiple points.

[0031] The spot welding mechanism 300 is located outside the discharge port 112 and is used to weld the two ends of the cylinder. Specifically, during operation, the operator pushes the wound cylinder into the conveying channel 110 from the feed port 111, and inserts both ends of the cylinder into the corresponding slots 121. The transport mechanism 200 then pushes the cylinder to the discharge port 112, where a portion of it protrudes and abuts against the closed positioning mechanism 400 for positioning. The positioning mechanism 400 then switches to the open state, and the spot welding mechanism 300 performs the first spot welding on both ends of the cylinder. The transport mechanism 200 pushes the cylinder so that the spot welding mechanism 300 performs multi-point spot welding on both ends of the cylinder to fix them in place. This method has the advantages of high automation and high precision, ensuring a high yield rate and significantly reducing production costs.

[0032] In one embodiment, multiple connecting rods 100 extend along the conveying direction of the cylinder and are spaced apart axially around the cylinder to form a conveying channel 110. The multiple connecting rods 100 arranged axially around the cylinder form a robust "cage" guide structure. This effectively prevents the cylinder from jumping or tilting due to external forces or vibrations during conveying, ensuring a more straight and stable movement trajectory. The channel formed by the connecting rods 100 is open or semi-open, facilitating observation of the cylinder's conveying status and making it easier to handle potential jamming issues.

[0033] Optionally, the positioning mechanism 400 includes a fixed base 410, a connecting piece 420, a first driving device 430, and a positioning arm 440. The first driving device 430 is mounted on the fixed base 410. Both ends of the connecting piece 420 are rotatably connected to the positioning arm 440 and the fixed base 410, respectively. Specifically, the connecting piece 420 is rotatably connected to both ends of the positioning arm 440. The upper end of the positioning arm 440 is rotatably connected to the output end of the first driving device 430. The first driving device 430 can push the positioning arm 440 to rotate downwards. The downward rotation angle of the positioning arm 440 is preferably 90 degrees. At this time, the positioning arm 440 is in a vertical state so that the other end of the positioning arm 440 can abut against the end of the cylinder extending out of the discharge port 112 to achieve positioning. Specifically, the first driving device 430 is preferably a cylinder. The cylinder rod of the cylinder is rotatably connected to the upper end of the positioning arm 440. The cylinder pushes the positioning arm 440 to rotate upward or downward. It should be noted that when the positioning mechanism 400 is in the open state, the positioning arm 440 rotates upward to a position higher than the cylinder so that the cylinder can flow out from the discharge port 112.

[0034] In one embodiment, to enable the conveying mechanism 200 to push the cylinder toward the discharge port 112, the conveying mechanism 200 specifically includes a second driving device 210, a mounting base 220, and a first pushing arm 230. The mounting base 220 is located above the clamping plate 120. The first pushing arm 230 is vertically and rotatably mounted on the end of the mounting base 220 near the inlet 111, extending into the conveying channel 110. A first limiting wall 221 is provided on the mounting base 220, and the first limiting wall 221 is located near the first pushing arm 230. On the side near the feed inlet 111, it should be noted that a first mounting groove is provided on the side of the mounting base 220. The upper end of the first push arm 230 is rotatably connected to the first mounting groove. The first limiting wall 221 is the inner wall of the first mounting groove near the feed inlet 111. The first limiting wall 221 is used to restrict the first push arm 230 from swinging towards the feed inlet 111. The second driving device 210 can drive the mounting base 220 to move along the conveying direction of the cylinder, thereby driving the first push arm 230 to push the cylinder to the positioning mechanism 400 for positioning, ensuring the accuracy of subsequent welding.

[0035] The first push arm 230 can swing toward the discharge port 112. The purpose of this design is to ensure that the cylinder can push the first push arm 230 into the conveying channel 110 when feeding. When the cylinder is pushed into the conveying channel 110, its end near the feed port 111 abuts against the first push arm 230.

[0036] In one embodiment, the conveying mechanism 200 further includes a second push arm 240, wherein the second push arm 240 is vertically and rotatably disposed at one end of the mounting base 220 near the discharge port 112, the second push arm 240 extends into the conveying channel 110, the distance between the second push arm 240 and the first push arm 230 is greater than the length of the cylinder, and a second limiting wall 222 is provided on the mounting base 220, the second limiting wall 222 is located on the side of the second push arm 240 near the feed port 111, the second limiting wall 222 is used to restrict the second push arm 240 from swinging toward the feed port 111. After the first push arm 230 pushes the cylinder to the discharge port 112, the second drive device 210 drives the mounting base 220 to move towards the inlet 111, so that the second push arm 240 abuts against the end of the cylinder near the inlet 111. Furthermore, the second drive device 210 drives the mounting base 220 to drive the second push arm 240 to push the cylinder out of the discharge port 112, so that the spot welding mechanism 300 performs multi-point spot welding on both ends of the cylinder. The second push arm 240 can swing toward the discharge port 112. The mounting base 220 has a second mounting groove at the end away from the feed port 111. The second limiting arm is the inner wall of the second mounting groove. The upper end of the second push arm 240 is rotatably connected to the second mounting groove. When the mounting base 220 drives the second push arm 240 to move toward the feed port 111, the cylinder will push the second push arm 240 to swing toward the discharge port 112, so that the second push arm 240 can move to the end of the cylinder close to the discharge port 112.

[0037] In some specific embodiments, the second driving device 210 includes a motor 211, a lead screw 212, and a connecting seat 214. The lead screw 212 is rotatably mounted above the mounting base 220. Specifically, bearing seats are rotatably mounted at both ends of the lead screw 212, and the bearing seats are fixed to the housing 600. Furthermore, a nut 213 is fitted onto the lead screw 212. The connecting seat 214 is connected to the mounting base 220 and the nut 213. The motor 211 is drively connected to one end of the lead screw 212. That is, the motor 211 rotates the lead screw 212, driving the connecting seat 214 to move, thereby driving the mounting base 220 to move. It should be noted that a guide assembly is also installed. The guide assembly includes a guide rail and a slider. The guide rail extends along the conveying direction of the cylinder and is mounted on the housing 600. The slider slides on the guide rail and is fixedly connected to the connecting seat 214 to ensure the stability of the movement of the mounting base 220.

[0038] In one embodiment, the spot welding mechanism 300 includes a third driving device 310 and a first electrode arm 320 and a second electrode arm 330 arranged vertically at intervals. The first electrode arm 320 is located at the lower end of the clamping plate 120, with its end away from the feed inlet 111 protruding through the discharge outlet 112. A first electrode 321 is vertically mounted on the exposed end of the first electrode arm 320, with its upper end flush with the bottom wall of the lower jaw 121. A second electrode 331 corresponding to the first electrode 321 is mounted on the second electrode arm 330. The third driving device 310 drives the second electrode arm 330 downwards. Specifically, the third driving device 310 is a cylinder, and the second electrode arm 330 is fixedly connected to the cylinder rod. That is, the cylinder pushes the first electrode 321 to overlap the two ends of the cylinder onto the second electrode 331 for welding.

[0039] In one embodiment, the positioning wheels 500 are spaced axially around the cylinder to form a space that fits the cylinder, and the positioning wheels 500 are in rolling connection with the cylinder. The fitting space formed by the positioning wheels 500 provides additional radial support to the cylinder to ensure the stability of the spot welding.

[0040] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A cylindrical spot welding apparatus characterized by comprising: The device comprises: a conveying channel, in which a clamping plate is arranged along the axial direction, and two clamping slots are arranged along the length direction of the clamping plate, one of which is higher than the other, and the two clamping slots are arranged in an up-down manner, the conveying channel has an inlet and an outlet, a cylinder is arranged in the conveying channel from the inlet, and the two ends of the cylinder extend into the corresponding clamping slots; a carrying mechanism and a positioning mechanism, the positioning mechanism is arranged outside the outlet, and has an open state and a closed state, the carrying mechanism is configured to push the cylinder to move from the inlet to the position where the positioning mechanism abuts against the cylinder when the positioning mechanism is in the closed state, and to push the cylinder to pass through the outlet when the positioning mechanism switches from the closed state to the open state; a spot welding mechanism arranged outside the outlet for welding the two ends of the cylinder.

2. The cylinder spot welding apparatus according to claim 1, characterized by, Further comprising: a connecting rod, which is arranged along the conveying direction of the cylinder and is spaced apart around the axial direction of the cylinder to form the conveying channel.

3. The cylinder spot welding device according to claim 1, wherein the positioning mechanism comprises a fixed seat, a connecting piece, a first driving device and a positioning arm, the first driving device is mounted on the fixed seat, the two ends of the connecting piece are rotatably connected with the positioning arm and the fixed seat respectively, the upper end of the positioning arm is rotatably connected with the output end of the first driving device, and the first driving device can push the positioning arm to rotate downward, so that the other end of the positioning arm can abut against one end of the cylinder extending out of the outlet.

4. The cylinder spot welding device according to claim 3, wherein the first driving device is a pneumatic cylinder.

5. The cylinder spot welding device according to claim 1, wherein the carrying mechanism comprises a second driving device, a mounting seat and a first pushing arm, the mounting seat is located above the clamping plate, the first pushing arm is vertically and rotatably arranged at one end of the mounting seat close to the inlet, the first pushing arm extends into the conveying channel, a first limiting wall is arranged on the mounting seat and located at the side of the first pushing arm close to the inlet, the first limiting wall is used to limit the swinging of the first pushing arm towards the inlet, and the second driving device can drive the mounting seat to move along the conveying direction of the cylinder.

6. The cylinder spot welding device according to claim 5, wherein the carrying mechanism further comprises a second pushing arm, the second pushing arm is vertically and rotatably arranged at one end of the mounting seat close to the outlet, the second pushing arm extends into the conveying channel, the distance between the second pushing arm and the first pushing arm is greater than the length of the cylinder, a second limiting wall is arranged on the mounting seat and located at the side of the second pushing arm close to the inlet, the second limiting wall is used to limit the swinging of the second pushing arm towards the inlet, and the second pushing arm can swing towards the outlet.

7. The cylindrical spot welding device according to claim 5, characterized in that, the second driving device comprises a motor, a screw rod and a connecting seat, the screw rod is rotationally arranged above the mounting seat, a nut is matched on the screw rod, the connecting seat is connected with the mounting seat and the nut, and the motor is drivingly connected with one end of the screw rod.

8. The cylindrical spot welding device according to claim 1, characterized in that, the spot welding mechanism comprises a third driving device, and a first electrode arm and a second electrode arm which are arranged in an up-down interval, the first electrode arm is arranged at the lower end of the clamping plate and is exposed through the discharge port away from the one end of the feeding port, a first electrode is vertically arranged at the exposed end of the first electrode arm, and the upper end of the first electrode is flush with the bottom wall of the lower clamping port; a second electrode corresponding to the first electrode is arranged on the second electrode arm, and the third driving device can drive the second electrode arm to move downward.

9. The cylindrical spot welding device according to claim 8, characterized in that, the third driving device is a pneumatic cylinder.

10. The cylinder spot welding apparatus according to claim 1, characterized by, Further comprising: a plurality of positioning wheels which are arranged in an axial interval around the cylinder to enclose a space adapted to the cylinder, and the positioning wheels are in rolling connection with the cylinder.

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