Nut welding machine for sheet metal parts

Abstract

The utility model relates to the technical field of sheet metal processing equipment, in particular to a nut welding machine for sheet metal parts, which comprises a cross-shaped sliding table, a nut pushing mechanism and a welding machine. A first positioning mechanism, a second positioning mechanism and a pressing mechanism are arranged on the cross-shaped sliding table; the nut pushing mechanism is used for pushing the nuts to the clamping station; the welding machine comprises a clamping mechanism, a third positioning mechanism and a welding mechanism. The workpiece is pressed through the pressing mechanism, and accurate positioning of the workpiece is guaranteed through the two positioning mechanisms; nuts can be automatically pushed through the nut pushing mechanism, and the nut pushing mechanism is matched with the clamping mechanism and the welding mechanism on the welding machine to achieve automatic clamping, placing and welding of the nuts; and a third positioning mechanism on the welding machine is utilized to avoid position deviation of the workpiece and ensure accurate welding. According to the nut welding machine for the sheet metal part, manual nut welding operation can be completely replaced through mechanical and automatic design, the nut welding quality and the working efficiency are improved, and the labor cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of sheet metal processing equipment technology, and in particular to a nut welding machine for sheet metal parts. Background Technology

[0002] For welding nuts on sheet metal workpieces, the commonly used types are platform-type nut projection welding machines and vertical nut projection welding machines. When operated manually, the following processing steps are required: picking up the nut, aligning the nut with the hole, welding the nut, moving the workpiece or welding gun, and then repeating the next nut welding process. The projection welding time for a single nut is relatively long, which affects processing efficiency and labor intensity.

[0003] Therefore, the above-mentioned manual nut welding method has the following problems:

[0004] 1. Manual welding of nuts can easily lead to missing nuts, resulting in poor welding quality of sheet metal nuts;

[0005] 2. When welding nuts manually, the hands need to frequently grasp the nuts, which is time-consuming and has low production efficiency;

[0006] 3. Manual welding of nuts requires repeated handling and movement of the workpiece, resulting in high labor intensity and low processing efficiency. Utility Model Content

[0007] This utility model provides a nut welding machine for sheet metal parts, which solves the defects of poor welding quality, low work efficiency and high cost of the nut welding of sheet metal parts by manual welding in the prior art.

[0008] This utility model provides a nut welding machine for sheet metal parts, comprising:

[0009] A cross slide table is provided with a first positioning mechanism, a second positioning mechanism and a clamping mechanism. The first positioning mechanism and the second positioning mechanism are used to position the workpiece in a first direction and a second direction, respectively, and the clamping mechanism is used to clamp the workpiece.

[0010] Nut pushing mechanism, used to push nuts to the clamping station;

[0011] Welding machine, including:

[0012] A clamping mechanism is used to clamp a nut located at a clamping station and place it onto a workpiece;

[0013] The third positioning mechanism is used to correct the deviation of the workpiece placed on the cross slide.

[0014] A welding mechanism for welding the nut on the clamping mechanism to the workpiece.

[0015] According to the sheet metal nut welding machine provided by this utility model, the first positioning mechanism includes:

[0016] A first-direction positioning ruler is provided on the first side of the cross slide table along the first direction of the cross slide table;

[0017] The second positioning mechanism includes:

[0018] The second-direction positioning ruler is located on the second side of the cross slide along the second direction of the cross slide.

[0019] According to the sheet metal nut welding machine provided by this utility model, the clamping mechanism includes:

[0020] A pressure block is provided on the cross slide;

[0021] The clamp is located on the cross slide and on the opposite side of the clamping block.

[0022] The nut welding machine for sheet metal parts provided by this utility model also includes:

[0023] The base is fixed below the welding machine;

[0024] The first drive unit has its fixed end fixed to the base;

[0025] A rotary table is connected to the movable end of the first drive unit via a rotating shaft, and the nut pushing mechanism is located on the rotary table.

[0026] According to the sheet metal nut welding machine provided by this utility model, the nut pushing mechanism includes:

[0027] The delivery pipe is used to deliver nuts.

[0028] The push support has a conveying slide for conveying nuts, and one end of the conveying slide is connected to the conveying pipe, while the clamping station is located at the other end of the conveying slide.

[0029] A pusher head, movably mounted on the pusher support, is used to push a nut located at one end of the conveyor slide to the clamping station.

[0030] According to the sheet metal nut welding machine provided by this utility model, the nut pushing mechanism further includes:

[0031] An elastic block is located on the outside of the clamping station to limit the nut's position.

[0032] An elastic element is provided with an installation groove at the position of the push support near the clamping station. The elastic element is located in the installation groove, with one end connected to the installation groove and the other end connected to the elastic block. The clamping mechanism can overcome the elastic force of the elastic element and press the elastic block into the installation groove.

[0033] According to the sheet metal nut welding machine provided by this utility model, the nut pushing mechanism further includes:

[0034] A proximity sensor is disposed in the receiving groove of the push support, with the sensing end of the proximity sensor close to the clamping station, for detecting whether the nut is in place at the clamping station.

[0035] According to the sheet metal nut welding machine provided by this utility model, the clamping mechanism includes:

[0036] A round tube, the round tube being made of an elastic material, and the welding mechanism extending from one end of the round tube, the other end of the round tube being slotted axially and forming multiple jaws for gripping nuts.

[0037] The nut welding machine for sheet metal parts provided by this utility model further includes:

[0038] The second drive unit is capable of moving along a surface perpendicular to the cross slide. The clamping mechanism, the third positioning mechanism, and the welding mechanism are connected to the movable end of the second drive unit via a mounting plate.

[0039] The nut welding machine for sheet metal parts provided by this utility model further includes:

[0040] The third drive unit is mounted on the mounting plate and can move along a surface perpendicular to the cross slide. The welding mechanism is connected to the movable end of the third drive unit.

[0041] This utility model provides a nut welding machine for sheet metal parts, comprising: a cross slide, a nut pushing mechanism, and a welding machine. The cross slide is equipped with a first positioning mechanism, a second positioning mechanism, and a clamping mechanism. The first and second positioning mechanisms are used to position the workpiece in a first direction and a second direction, respectively, while the clamping mechanism clamps the workpiece. The nut pushing mechanism pushes the nut to a clamping station. The welding machine includes: a clamping mechanism, a third positioning mechanism, and a welding mechanism. The clamping mechanism clamps the nut located at the clamping station and places it onto the workpiece. The third positioning mechanism corrects the workpiece placed on the cross slide. The welding mechanism welds the nut from the clamping mechanism to the workpiece. This utility model provides a nut welding machine for sheet metal parts. The clamping mechanism clamps the workpiece, and the two positioning mechanisms ensure accurate workpiece positioning. Driven by the cross slide, the workpiece can be moved to a designated welding position. The nut pushing mechanism automatically pushes the nut and, in conjunction with the clamping and welding mechanisms on the welding machine, achieves automatic nut clamping, placement, and welding. The third positioning mechanism on the welding machine prevents workpiece position deviation and ensures accurate welding. The sheet metal nut welding machine of this invention, through mechanized and automated design, can completely replace manual nut welding operations, improve nut welding quality and work efficiency, and reduce labor costs. Attached Figure Description

[0042] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0043] Figure 1 This is a schematic diagram of the overall structure of a nut welding machine for sheet metal parts provided in one embodiment of this utility model.

[0044] Figure 2 This is a schematic diagram of the cross slide provided in one embodiment of the present invention.

[0045] Figure 3 This is a schematic diagram of the welding machine provided in one embodiment of the present invention.

[0046] Figure 4 This is a schematic diagram of the structure of the base, the first drive unit, and the rotary table provided in one embodiment of the present invention.

[0047] Figure 5 This is a schematic diagram of the nut pushing mechanism provided in one embodiment of the present invention.

[0048] Figure 6This is a schematic diagram of the elastic element in a stretched state in one embodiment of the nut pushing mechanism provided by this utility model.

[0049] Figure 7 This is a schematic diagram of the elastic element in a compressed state in one embodiment of the nut pushing mechanism provided by this utility model.

[0050] Figure 8 This is a schematic diagram of the internal structure of the elastic element in the nut pushing mechanism provided in one embodiment of the present invention, where the elastic element is in a stretched state.

[0051] Figure 9 This is a schematic diagram of the internal structure of the elastic element in the nut pushing mechanism provided in one embodiment of the present invention, where the elastic element is in a compressed state.

[0052] Figure label:

[0053] 1: Base; 2: Cross slide; 201: X-axis slide; 202: Y-axis slide; 203: First positioning mechanism; 204: Second positioning mechanism; 2051: Pressure block; 2052: Pressure clamp; 3: Nut pushing mechanism; 301: Conveying pipe; 302: Pushing support; 3021: Conveying slide; 303: Pushing head; 304: Elastic block; 305: Elastic element; 306: Mounting groove; 307: Proximity sensor; 3071: Monitoring hole; 308: Inclined slide; 4: Clamping mechanism; 5: Third positioning mechanism; 6: Welding mechanism; 701: Base; 702: First drive unit; 7021: Cylinder; 7022: Connecting rod; 703: Rotary table; 8: Second drive unit; 9: Third drive unit. Detailed Implementation

[0054] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0055] In the description of this embodiment, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this embodiment and simplifying the description, and are 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, and therefore should not be construed as a limitation of this embodiment.

[0056] 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 indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this embodiment, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0057] In this embodiment, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," "link," and "fix" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this embodiment based on the specific circumstances.

[0058] In this embodiment of the utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0059] The following is combined Figures 1-9 This invention describes a nut welding machine for sheet metal parts. The nut welding machine for sheet metal parts includes: a cross slide 2, a nut pushing mechanism 3, and a welding machine.

[0060] The cross slide 2 is equipped with a first positioning mechanism 203, a second positioning mechanism 204 and a clamping mechanism. The first positioning mechanism 203 and the second positioning mechanism 204 are used to position the workpiece in the first direction and the second direction, respectively. The clamping mechanism is used to clamp the workpiece. The nut pushing mechanism 3 is used to push the nut to the clamping station. The welding machine includes a clamping mechanism 4, a third positioning mechanism 5 and a welding mechanism 6.

[0061] The clamping mechanism 4 is used to clamp the nut located at the clamping station and place it on the workpiece; the third positioning mechanism 5 is used to correct the workpiece placed on the cross slide table 2; and the welding mechanism 6 is used to weld the nut on the clamping mechanism 4 to the workpiece.

[0062] Specifically, the cross slide 2 is mounted on the base 1 and is used to place the workpiece and move it along the X-axis and Y-axis. The cross slide 2 consists of an X-axis slide 201 and a Y-axis slide 202, which are capable of X-axis and Y-axis movement, respectively.

[0063] The first positioning mechanism 203 and the second positioning mechanism 204 are used to position the workpiece in the first and second directions, respectively. When on the cross slide 2, the two positioning mechanisms position the workpiece in the X-axis and Y-axis directions to ensure accurate workpiece positioning. The clamping mechanism is used to clamp the workpiece to ensure that the workpiece moves with the cross slide 2.

[0064] The nut pushing mechanism 3 pushes the nut to the designated clamping station. The clamping mechanism 4 on the welding machine clamps the nut at the clamping station and places it onto the workpiece. Since the nut may shift position after being placed on the workpiece, the third positioning mechanism 5 aligns the workpiece hole position before the welding machine mechanism welds the nut onto the workpiece. If the nut shifts, the movement of the cross slide 2 ensures that the workpiece and nut are positioned below the welding mechanism 6, guaranteeing accurate welding.

[0065] The welding machine consists of a clamping mechanism 4, a third positioning mechanism 5, and a welding mechanism 6. The clamping mechanism 4 first clamps the nut from the clamping station and then places it onto the workpiece. The third positioning mechanism 5 corrects the workpiece's alignment, and then the welding mechanism 6 welds the nut onto the workpiece. Specifically, the function of the third positioning mechanism 5 is to photograph the hole positions on the workpiece after it is placed on the cross slide and compare them with the theoretical hole positions. By correcting the hole positions, the positioning deviation of the sheet metal can be compensated, thus ensuring the accuracy of the hole positions across the entire sheet metal. Only one photographic correction is needed per part.

[0066] The clamping mechanism 4 can be a clamping jaw capable of clamping. When the jaws clamp the nut, they are clamped tightly; when the jaws release the nut, they return to their original position. The welding mechanism 6 can be a spot welding head, which can be located inside the jaws. After the jaws release the nut, the spot welding head descends and welds the nut. The jaw design is based on the tool frame structure design, using elastic steel to precisely clamp the nut using elasticity.

[0067] This utility model provides a nut welding machine for sheet metal parts, comprising: a cross slide table 2, a nut pushing mechanism 3, and a welding machine. The cross slide table 2 is equipped with a first positioning mechanism 203, a second positioning mechanism 204, and a clamping mechanism. The first positioning mechanism 203 and the second positioning mechanism 204 are used to position the workpiece in a first direction and a second direction, respectively. The clamping mechanism is used to clamp the workpiece. The nut pushing mechanism 3 is used to push the nut to the clamping station. The welding machine includes: a clamping mechanism 4, a third positioning mechanism 5, and a welding mechanism 6. The clamping mechanism 4 is used to clamp the nut located at the clamping station and place it onto the workpiece. The third positioning mechanism 5 is used to correct the deviation of the workpiece placed on the cross slide table 2. The welding mechanism 6 is used to weld the nut on the clamping mechanism 4 to the workpiece. This utility model provides a nut welding machine for sheet metal parts. A clamping mechanism clamps the workpiece, and two positioning mechanisms ensure accurate workpiece positioning. Driven by a cross slide 2, the workpiece can be moved to a designated welding position. A nut pushing mechanism 3 automatically pushes the nut, cooperating with the clamping mechanism 4 and welding mechanism 6 on the welding machine to automatically clamp, place, and weld the nut. A third positioning mechanism 5 on the welding machine prevents workpiece and nut misalignment, ensuring accurate welding. This sheet metal nut welding machine, through mechanized and automated design, can completely replace manual nut welding, improving welding quality and work efficiency while reducing labor costs.

[0068] In one embodiment of this utility model, the first positioning mechanism 203 includes: a first-direction positioning ruler, disposed on the first side of the cross slide 2 along the first direction of the cross slide 2; the second positioning mechanism 204 includes: a second-direction positioning ruler, disposed on the second side of the cross slide 2 along the second direction of the cross slide 2. Specifically, a first-direction positioning ruler is disposed in the X-axis direction, and a second-direction positioning ruler is disposed in the Y-axis direction. The two sides of the workpiece are respectively abutted against the first-direction positioning ruler and the second-direction positioning ruler to achieve workpiece positioning.

[0069] In one embodiment of this utility model, the clamping mechanism includes a clamping block 2051 and a clamping clamp 2052. The clamping block 2051 is disposed on the cross slide 2; the clamping clamp 2052 is disposed on the cross slide 2 and is located on the opposite side of the clamping block 2051. Specifically, to ensure the clamping effect, two clamping blocks 2051 and two clamping clamps 2052 are provided, and the clamping blocks 2051 and clamping clamps 2052 are arranged opposite to each other, thereby clamping and fixing the workpiece. Furthermore, the clamping clamp 2052 can be adjusted in position according to the size of the workpiece. For example, the two clamping clamps 2052 can be detachably connected by fasteners, and the fasteners can be removed to adjust the distance between the two clamping clamps 2052.

[0070] In one embodiment of this utility model, the sheet metal nut welding machine further includes: a base 701, a first drive unit 702, and a rotary table 703. The base 701 is fixed below the welding machine; the fixed end of the first drive unit 702 is fixed on the base 701; the rotary table 703 is connected to the movable end of the first drive unit 702 via a rotating shaft, and the nut pushing mechanism 3 is disposed on the rotary table 703. Using the movement of the first drive unit 702, the rotary table 703 drives the nut pushing mechanism 3 to move to a designated position, so that the clamping mechanism 4 can clamp the nut. After the nut is clamped, the first drive unit 702 drives the rotary table 703 and the nut pushing mechanism 3 to reset, avoiding interference with nut placement and welding.

[0071] Specifically, the first drive unit 702 consists of a cylinder 7021 and a connecting rod 7022. The cylinder 7021 and one end of the connecting rod 7022 are connected by a rotating shaft, and the other end of the connecting rod 7022 is connected to the rotary table 703.

[0072] In one embodiment of this utility model, the nut pushing mechanism 3 includes: a conveying pipe 301, a pushing support 302, and a pushing head 303. The conveying pipe 301 is used to convey nuts; the pushing support 302 has a conveying slide 3021 for conveying nuts, with one end of the conveying slide 3021 connected to the conveying pipe 301 and a clamping station located at the other end of the conveying slide 3021; ​​the pushing head 303 is movably mounted on the pushing support 302 and is used to push the nut located at one end of the conveying slide 3021 to the clamping station. Specifically, one end of the conveying pipe 301 is connected to a feeding mechanism to receive nuts, and the other end is connected to the conveying slide 3021 of the pushing support 302. The movement of the pushing head 303 pushes the nut from the front end of the conveying slide 3021 to the clamping station. It should be understood that the end of the conveying slide 3021 is the location of the clamping station.

[0073] In one embodiment of this utility model, the nut pushing mechanism 3 further includes an elastic block 304 and an elastic element 305. The elastic block 304 is located on the outside of the clamping station and is used to limit the nut's position. The elastic element 305 has a mounting groove 306 near the clamping station on the pushing support 302. The elastic element 305 is located within the mounting groove 306, with one end connected to the mounting groove 306 and the other end connected to the elastic block 304. The clamping mechanism 4 can overcome the elastic force of the elastic element 305 and press the elastic block 304 into the mounting groove 306. In this embodiment, the elastic block 304 forms an arc-shaped structure, and its inner wall has a limiting effect on the nut. The mounting groove 306 is machined near the clamping station of the pushing support 302, and the elastic element 305 (preferably a spring) is placed within the mounting groove 306 to provide elastic force to the elastic block 304 in the height direction. In the initial state, the elastic element 305 is in a stretched state, and the elastic block 304 is exposed above the mounting groove 306 due to the elastic force of the elastic element 305, thus limiting the nut. When the clamping mechanism 4 descends and clamps the nut, it presses the elastic block 304, and the elastic element 305 is in a compressed state. The elastic block 304 is pressed into the mounting groove 306. At this time, the limiting function of the elastic block 304 is ineffective, and the clamping mechanism 4 clamps the nut. When the clamping mechanism 4 clamps the nut and rises, the elastic block 304 pops out of the mounting groove 306 and resets due to the elastic restoring force of the elastic element 305, thus fulfilling its limiting function for the next nut.

[0074] In one embodiment of this utility model, the nut pushing mechanism 3 further includes a proximity sensor 307, which is disposed in the receiving groove of the pushing support 302, and the sensing end of the proximity sensor 307 is close to the clamping station, for detecting whether the nut is in place at the clamping station. A monitoring hole 3071 is provided at the bottom of the clamping station, and the sensing end of the proximity sensor 307 is located in the monitoring hole 3071. When the nut is in the clamping station, the proximity sensor 307 can detect that the nut has moved into place through the monitoring hole 3071, at which time the clamping mechanism 4 can be controlled to clamp the nut; otherwise, the clamping mechanism 4 does not operate.

[0075] In one embodiment of this utility model, an inclined slide 308 is provided on the conveying slide 3021, with one end of the inclined slide 308 close to the clamping station. Specifically, the inclined slide 308 gradually slopes from low to high in the nut conveying direction. In addition, in order to cooperate with the push head 303, the inclined slide 308 is a U-shaped slide, and the bottom of the push head 303 has a push post that can extend into the center of the U-shaped slide, thereby realizing the pushing of the nut.

[0076] In one embodiment of this utility model, the clamping mechanism 4 includes a circular tube made of an elastic material (preferably spring steel), with a welding mechanism 6 extending from one end of the circular tube. The other end of the circular tube is slotted axially to form multiple jaws for clamping nuts. In this embodiment, the clamping mechanism 4 has the following advantages: Firstly, the circular tube design allows for internal electrode placement, enabling the welding mechanism 6 to be located inside the clamping mechanism 4, thus meeting the welding requirements for two nuts with very small spacing. Secondly, due to the tension of the spring steel, when the jaws descend, the slots on the circular tube allow the jaws to slightly open, using the tension of the spring steel to clamp the nut. When the welding mechanism 6 descends via the third drive unit 9, it pushes the nut out of the jaws, and the jaws reset. Therefore, the jaw structure in this embodiment, due to its material properties, does not require an additional power mechanism to drive the jaws to open or close.

[0077] In one embodiment of this utility model, the welding machine further includes: a second drive unit 8, which is capable of moving along a surface perpendicular to the cross slide 2; the clamping mechanism 4, the third positioning mechanism 5, and the welding mechanism 6 are connected to the movable end of the second drive unit 8 via a mounting plate. Specifically, the second drive unit 8 is a Z-axis moving mechanism that drives the clamping mechanism 4, the third positioning mechanism 5, and the welding mechanism 6 to move along the Z-axis as a whole.

[0078] In one embodiment of this utility model, the welding machine further includes: a third drive unit 9, which is mounted on a mounting plate and can move along a surface perpendicular to the cross slide 2; the welding mechanism 6 is connected to the movable end of the third drive unit 9. Specifically, the third drive unit 9 is another Z-axis moving mechanism that drives the welding mechanism 6 to move along the Z-axis. The specific application scenarios of the above two moving mechanisms are as follows:

[0079] The second drive unit 8 is used to drive the clamping mechanism 4, the third positioning mechanism 5 and the welding mechanism 6 to move up and down as a whole. By using the movement of the first drive unit 702 and the action of the push head 303, the nut is moved to the clamping position. The second drive unit 8 descends, so that the clamping mechanism 4 presses down on the elastic block 304 and clamps the nut (at this time, the third drive unit 9 is in the rising state). After that, the first drive unit 702 resets the nut push mechanism 3.

[0080] The second drive unit 8 descends, driving the clamping mechanism 4 to place the nut onto the workpiece. The third drive unit 9 descends, causing the welding mechanism 6 to press the nut. Then, the clamping mechanism 4 rises, its jaws reset, exposing the nut to prevent the clamping mechanism from burning out during welding. Finally, the welding mechanism 6 welds the nut onto the workpiece.

[0081] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0082] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A nut welding machine for sheet metal parts, characterized in that, include: A cross slide (2) is provided with a first positioning mechanism (203), a second positioning mechanism (204) and a clamping mechanism. The first positioning mechanism (203) and the second positioning mechanism (204) are used to position the workpiece in a first direction and a second direction, respectively, and the clamping mechanism is used to clamp the workpiece. Nut pushing mechanism (3) is used to push the nut to the clamping station; Welding machine, including: The clamping mechanism (4) is used to clamp the nut located at the clamping station and place it on the workpiece; The third positioning mechanism (5) is used to correct the deviation of the workpiece placed on the cross slide (2); Welding mechanism (6) is used to weld the nut on the clamping mechanism (4) to the workpiece.

2. The nut welding machine for sheet metal parts according to claim 1, characterized in that, The first positioning mechanism (203) includes: A first-direction positioning ruler is provided on the first side of the cross slide (2) along the first direction of the cross slide (2); The second positioning mechanism (204) includes: The second direction positioning ruler is set on the second side of the cross slide (2) along the second direction of the cross slide (2).

3. The nut welding machine for sheet metal parts according to claim 1, characterized in that, The clamping mechanism includes: A pressure block (2051) is provided on the cross slide (2); The clamp (2052) is located on the cross slide (2) and on the opposite side of the clamp (2051).

4. The nut welding machine for sheet metal parts according to claim 1, characterized in that, Also includes: The base (701) is fixed below the welding machine; The first drive unit (702) has its fixed end fixed to the base (701); The rotary table (703) is connected to the movable end of the first drive unit (702) via a rotating shaft, and the nut pushing mechanism (3) is located on the rotary table (703).

5. The nut welding machine for sheet metal parts according to claim 1, characterized in that, The nut pushing mechanism (3) includes: Delivery pipe (301), used for conveying nuts; The push support (302) has a conveying slide (3021) for conveying nuts, and one end of the conveying slide (3021) is connected to the conveying pipe (301), and the clamping station is located at the other end of the conveying slide (3021); The push head (303) is movably mounted on the push support (302) and is used to push the nut located at one end of the conveying slide (3021) to the clamping station.

6. The nut welding machine for sheet metal parts according to claim 5, characterized in that, The nut pushing mechanism (3) further includes: An elastic block (304) is provided on the outside of the clamping station to limit the nut; An elastic element (305) is provided with an installation groove (306) near the clamping station on the push support (302). The elastic element (305) is located in the installation groove (306), with one end connected to the installation groove (306) and the other end connected to the elastic block (304). The clamping mechanism (4) can overcome the elastic force of the elastic element (305) and press the elastic block (304) into the installation groove (306).

7. The nut welding machine for sheet metal parts according to claim 5, characterized in that, The nut pushing mechanism (3) further includes: A proximity sensor (307) is disposed in the receiving groove of the push support (302), and the sensing end of the proximity sensor (307) is close to the clamping station, for detecting whether the nut is in place at the clamping station.

8. The nut welding machine for sheet metal parts according to any one of claims 1 to 7, characterized in that, The clamping mechanism (4) includes: The round tube is made of an elastic material, and the welding mechanism (6) extends from one end of the round tube, and the other end of the round tube is slotted along the axial direction to form a plurality of jaws for clamping nuts.

9. The nut welding machine for sheet metal parts according to any one of claims 1 to 7, characterized in that, The welding machine also includes: The second drive unit (8) is capable of moving along a surface perpendicular to the cross slide (2). The clamping mechanism (4), the third positioning mechanism (5), and the welding mechanism (6) are connected to the movable end of the second drive unit (8) via a mounting plate.

10. The nut welding machine for sheet metal parts according to claim 9, characterized in that, The welding machine also includes: The third drive unit (9) is located on the mounting plate and can move along the surface perpendicular to the cross slide (2). The welding mechanism (6) is connected to the movable end of the third drive unit (9).

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