Projection welding machine capable of automatically conveying nuts

Abstract

The invention relates to the technical field of nut projection welding, and one embodiment of the invention provides a projection welding machine capable of automatically conveying nuts, which comprises a workbench, a supporting device, a pushing device and a feeding device, a base is fixedly connected to the bottom of the workbench, an elastic plate is fixedly connected to the inner wall of the base, a collecting box is slidably connected to the inner wall of the base, a supporting plate is fixedly connected to the top of the workbench, and a longitudinal driving device is fixedly connected to the top of the supporting plate. The other embodiment of the invention provides the projection welding machine capable of automatically conveying the nuts, the supporting device comprises a fixed plate, a motor, a threaded rod, a movable plate, a guide column and a supporting block, and the fixed plate is fixedly connected to the right side of the workbench. By means of the technical scheme, the technical problem that in the prior art, a welded nut is prone to being damaged due to collision is solved.

Description

Technical Field

[0001] The embodiments of the present disclosure relate to the technical field of nut projection welding, and in particular, to a projection welding machine for automatically conveying nuts. Background Art

[0002] Nuts are parts that tightly connect mechanical equipment. Nuts and bolts of the same specifications can be connected together through the inner threads. During the nut processing, a projection welding machine is required to weld the nuts.

[0003] The patent with application number 201521044506.9 relates to an automatic nut projection welding machine, including a projection welding machine, the projection welding machine including a workbench, a support frame, a first connecting rod, a transmission device, a fixed rod and a support rod, the upper end of the workbench is equipped with a support frame and a support rod, the two ends of the support frame are respectively provided with a second connecting rod and a third connecting rod, and the third connecting rod runs through the workbench; compared with the prior art, it has the following beneficial effects: through the transmission device, nuts can be transported to the projection welding machine, avoiding the danger caused by the worker's left and right hands operating together, because the sliding baffle on one side of the first connecting rod can slide to prevent the nut from being transported to the projection welding machine, avoiding damage to the projection welding machine due to too many weldments, because the positioning seat at the upper end of the third connecting rod can accurately find the welding point of the nut and speed up the welding rate of the nut, the structure is simple, the operation is convenient, the welding accuracy is improved and the safety factor of the operation is increased, but the nuts welded by this device will be directly pushed out and fall into the collecting device, which is easy to cause the nuts after welding to be damaged due to collision, so a projection welding machine for automatically conveying nuts is proposed to solve the above-mentioned problems. Summary of the invention

[0004] In order to overcome the above-mentioned defects, the embodiments of the present disclosure provide a projection welding machine for automatically conveying nuts, which solves the technical problem in the prior art that nuts after welding are easily damaged due to collision.

[0005] According to one aspect, at least one embodiment of the present disclosure provides a projection welding machine for automatically conveying nuts, including a workbench, and also including a supporting device, a pushing device and a loading device; the bottom of the workbench is fixedly connected to a base, the inner wall of the base is fixedly connected to an elastic plate, the inner wall of the base is slidably connected to a collecting box, the top of the workbench is fixedly connected to a supporting plate, the top of the support plate is fixedly connected to a longitudinal driving device, the output end of the longitudinal driving device is fixedly connected to a welding head, the rear of the workbench is fixedly connected to a motor, the output end of the motor is fixedly connected to a transmission rod, the end of the transmission rod away from the motor is fixedly connected to a placement bin, and the bottom wall inside the placement bin is slidably connected to a discharge plate through a spring; the supporting device is arranged on the right side of the workbench, and the pushing device is The device is arranged on the inner wall of the base, and the loading device is arranged at the front part of the workbench; the surface of the transmission rod is rotatably connected with the inner wall of the workbench, and the surface of the welding head after moving is respectively in contact with the inner wall of the placing bin and the top of the unloading plate. After the longitudinal driving device drives the welding head to move down to weld the nut, the motor will start and drive the transmission rod to rotate, and the transmission rod will drive the placing bin to rotate, so that the welded nuts in the placing bin are poured out and discharged, and at the same time, the spring will drive the unloading plate to move up and push the welded nuts to detach from the placing bin to prevent the nuts from slipping from the inverted placing bin due to friction, so that the unloading and discharging collection of the nuts are carried out simultaneously, and at the same time, the nuts will fall on the elastic plate after being discharged, and the elastic plate will cushion them to prevent them from falling and being damaged, and the nuts will eventually slide into the collection box through the elastic plate.

[0006] For example, in a projection welding machine for automatically conveying nuts provided by at least one embodiment of the present disclosure, the supporting device includes a fixed plate, a motor, a threaded rod, a movable plate, a guide column and a supporting block, the fixed plate is fixedly connected to the right side of the workbench, the motor is fixedly connected to the right side of the fixed plate, the threaded rod is fixedly connected to the output end of the motor, the movable plate is threadedly connected to the surface of the threaded rod, the guide column is fixedly connected to the inner wall of the fixed plate, and the supporting block is fixedly connected to the top of the movable plate; the supporting device also includes an arc rod, a fixed block, an elastic rod and a knocking rod, the arc rod is fixedly connected to the bottom of the support block, the fixed block is fixedly connected to the surface of the arc rod, the elastic rod is fixedly connected to the top of the fixed block, and the knocking rod is fixedly connected to the end of the elastic rod away from the fixed block; the inner wall of the movable plate is slidably connected to the surface of the guide column, and the surface of the threaded rod is connected to the fixed plate The inner wall of the support block is rotatably connected, and the top of the support block contacts the bottom of the placement bin. When welding is needed again, the motor will start and drive the threaded rod to rotate, and the threaded rod will drive the movable plate that is limited by the guide column and cannot rotate to move, and the movable plate will drive the support block to move to the bottom of the placement bin and support the placement bin to prevent the welding head from moving down and welding the nut when the transmission rod is subjected to excessive force and breaks. In this process, the support block will drive the arc rod to move, and the arc rod will move to the left and contact the elastic plate, so that the elastic plate vibrates and causes the nut on the surface to slide off. After welding, the movable plate will be reset under the action of the threaded rod, and the support block will move right and drive the arc rod to move, and the arc rod will drive the fixed block to move right, and the fixed block will drive the knocking rod to move right through the elastic rod. At this time, the motor will drive the placement bin to rotate, and the placement bin will contact the knocking rod after rotation, and the knocking rod will knock it, further promoting the unloading of the welded nuts in the placement bin.

[0007] The cam is connected to the bottom end of the support frame, and the cam is connected to the bottom end of the support frame by an elastic member, and the cam is connected to the bottom end of the support frame by an elastic member. The limit rod will block the rotating plate but the baffle will continue to move up. At this time, the rotating plate will be driven by the limit rod to rotate, and the rotating plate will guide the top nut to slide toward the elastic plate to prevent the nut from accumulating on the rotating plate and the baffle.

[0008] For example, in a projection welding machine for automatically conveying nuts provided by at least one embodiment of the present disclosure, the feeding device includes an extension plate, a feeding box, an electric push rod, a connecting plate and a scraper, the extension plate is fixedly connected to the front of the workbench, the feeding box is slidably connected to the top of the extension plate, the electric push rod is fixedly connected to the front of the workbench, the connecting plate is fixedly connected to the output end of the electric push rod, and the scraper is fixedly connected to the rear of the feeding box; the bottom of the scraper is in contact with the top of the workbench, the rear of the connecting plate is fixedly connected to the front of the feeding box, and the bottom of the scraper after movement is in contact with the top of the placing bin. When the nuts in the placing bin need to be fed, the electric push rod will drive the connecting plate to move backward, and the connecting plate will drive the feeding box to move backward to above the placing bin. At this time, the feeding box will open and feed the nuts into the placing bin, and then the electric push rod will drive the feeding box to move forward and reset, and the feeding box will drive the scraper forward while moving forward, and the scraper will push the nuts to ensure that the nuts are in a horizontal state to prevent affecting the welding effect.

[0009] The beneficial effects of the embodiments of the present disclosure are: In the present invention, through the coordinated operation of the workbench, motor, transmission rod, placement bin, unloading plate, base, elastic plate, collection box, support plate, longitudinal drive device and welding head, after the longitudinal drive device drives the welding head to move down to weld the nut, the motor will start and drive the transmission rod to rotate, and the transmission rod will drive the placement bin to rotate, so that the welded nuts in the placement bin are poured out and discharged, and at the same time, the spring will drive the unloading plate to move up and push the welded nuts to detach from the placement bin, preventing the nuts from slipping from the inverted placement bin due to friction, so that the unloading and collection of the nuts are carried out simultaneously, and at the same time, the nuts will fall on the elastic plate after being discharged, and the elastic plate will cushion them to prevent them from falling and being damaged, and the nuts will eventually slide through the elastic plate into the collection box.

[0010] In the present invention, through the coordinated operation of the fixed plate, motor, threaded rod, movable plate, guide column, support block, arc rod, fixed block, elastic rod and knocking rod, when welding is needed again, the motor will start and drive the threaded rod to rotate, the threaded rod will drive the movable plate that is limited by the guide column and cannot rotate to move, the movable plate will drive the support block to move to the bottom of the placement bin and support the placement bin to prevent the transmission rod from being subjected to excessive force and breaking when the welding head moves down and welds the nut.

[0011] In the present invention, through the coordinated operation of the slide rod, the limit plate, the inclined block one, the inclined block two, the push plate, the transmission plate, the baffle, the rotating plate, and the limit rod, when the support block moves to the right and resets, the slide rod will be pushed downward through the inclined surface at the bottom, the slide rod will drive the inclined block to move down, the inclined block one will push the inclined block two to the left through the inclined surface, the inclined block two will push the push plate to the left, the push plate will push the nuts collected in the collection box to the left, to prevent the nuts from piling up under the elastic plate, thereby affecting the subsequent collection of nuts and improving space utilization.

[0012] In the present invention, through the coordinated operation of the extension plate, the loading box, the electric push rod, the connecting plate and the scraper, when the nuts in the placement bin need to be loaded, the electric push rod will drive the connecting plate to move backward, and the connecting plate will drive the loading box to move backward to above the placement bin. At this time, the loading box will open and load the nuts into the placement bin. After that, the electric push rod will drive the loading box to move forward and reset, and the loading box will move forward while driving the scraper forward. The scraper will push the nuts to ensure that the nuts are in a horizontal state to prevent affecting the welding effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following briefly introduces the drawings required for use in the description of the embodiments of the present disclosure. Obviously, the drawings described below are only some exemplary embodiments of the present disclosure. For those of ordinary skill in the art, other drawings can be obtained based on the contents of the exemplary embodiments of the present disclosure and these drawings without creative work.

[0014] Figure 1 It is a schematic diagram of the overall structure of the present disclosure; Figure 2 A half-section view of the base structure disclosed herein; Figure 3 This is a half-section diagram of the storage bin structure disclosed in the present invention; Figure 4 This is a schematic diagram of the threaded rod structure disclosed in the present invention; Figure 5 This is a schematic diagram of the fixed block structure disclosed in the present invention; Figure 6 It is a schematic diagram of the sliding rod structure disclosed in the present invention; Figure 7 This is a schematic diagram of the baffle structure disclosed in the present invention; Figure 8 It is a schematic diagram of the structure of the feeding box disclosed in the present invention.

[0015] In the figure: 1. workbench; 11. motor; 12. transmission rod; 13. placement bin; 14. unloading plate; 2. base; 21. elastic plate; 3. collection box; 4. support plate; 5. longitudinal drive device; 6. welding head; 7. support device; 71. fixed plate; 72. motor; 73. threaded rod; 74. moving plate; 75. guide column; 76. support block; 761. arc rod; 762. fixed block; 763. elastic rod; 764. knocking rod; 8. pushing device; 81. sliding rod; 82. limiting plate; 83. inclined block 1; 84. inclined block 2; 85. pushing plate; 851. transmission plate; 852. baffle; 853. rotating plate; 854. limiting rod; 9. feeding device; 91. extension plate; 92. feeding box; 93. electric push rod; 94. connecting plate; 95. scraper. DETAILED DESCRIPTION The present disclosure is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present disclosure, rather than to limit the present disclosure.

[0016] In order to simplify the drawings, only the parts related to the disclosure are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically shown, or only one of them is marked. In this article, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0017] In this document, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this disclosure can be understood according to specific circumstances.

[0018] In the present disclosure, unless otherwise expressly specified and limited, a first feature being “above” or “below” a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being “above”, “above”, and “above” a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0019] In the description of this embodiment, terms such as "up", "down", "left", and "right" and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of description and simplification of operation, rather than indicating or implying 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 disclosure.

[0020] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0021] like Figure 1 to Figure 8As shown, it shows a projection welding machine for automatically conveying nuts in one embodiment of the present disclosure, including a workbench 1, and also including a supporting device 7, a pushing device 8 and a loading device 9; the bottom of the workbench 1 is fixedly connected to a base 2, the inner wall of the base 2 is fixedly connected to an elastic plate 21, the inner wall of the base 2 is slidably connected to a collecting box 3, the top of the workbench 1 is fixedly connected to a supporting plate 4, the top of the supporting plate 4 is fixedly connected to a longitudinal driving device 5, the output end of the longitudinal driving device 5 is fixedly connected to a welding head 6, the rear part of the workbench 1 is fixedly connected to a motor 11, the output end of the motor 11 is fixedly connected to a transmission rod 12, the end of the transmission rod 12 away from the motor 11 is fixedly connected to a placement bin 13, the bottom wall inside the placement bin 13 is slidably connected to a discharge plate 14 through a spring, and after the longitudinal driving device 5 drives the welding head 6 to move down to weld the nut, the motor 11 will Start and drive the transmission rod 12 to rotate, the transmission rod 12 will drive the placement bin 13 to rotate, so that the welded nuts in the placement bin 13 are poured out and discharged, and at the same time the spring will drive the unloading plate 14 to move up and push the welded nuts out of the placement bin 13 to prevent the nuts from sliding out of the inverted placement bin 13 due to friction, so that the unloading and discharging collection of the nuts can be carried out simultaneously; the supporting device 7 is arranged on the right side of the workbench 1, the pushing device 8 is arranged on the inner wall of the base 2, and the loading device 9 is arranged on the front part of the workbench 1; the surface of the transmission rod 12 is rotatably connected to the inner wall of the workbench 1, and the surface of the welding head 6 after moving is in contact with the inner wall of the placement bin 13 and the top of the unloading plate 14 respectively. After the nut is discharged, it will fall on the elastic plate 21, and the elastic plate 21 will cushion it to prevent it from falling and being damaged, and the nut will eventually slide into the collection box 3 through the elastic plate 21.

[0022] In some examples, the support device 7 includes a fixed plate 71, a motor 72, a threaded rod 73, a movable plate 74, a guide column 75 and a support block 76. The fixed plate 71 is fixedly connected to the right side of the workbench 1, the motor 72 is fixedly connected to the right side of the fixed plate 71, the threaded rod 73 is fixedly connected to the output end of the motor 72, the movable plate 74 is threadedly connected to the surface of the threaded rod 73, the guide column 75 is fixedly connected to the inner wall of the fixed plate 71, and the support block 76 is fixedly connected to the top of the movable plate 74. When welding is required again, the motor 71 is fixedly connected to the right side of the workbench 1, the motor 72 is fixedly connected to the right side of the fixed plate 71, the threaded rod 73 is fixedly connected to the output end of the motor 72, the movable plate 74 is threadedly connected to the surface of the threaded rod 73, the guide column 75 is fixedly connected to the inner wall of the fixed plate 71, and the support block 76 is fixedly connected to the top of the movable plate 74. 72 will start and drive the threaded rod 73 to rotate, the threaded rod 73 will drive the movable plate 74 which is limited by the guide column 75 and cannot rotate to move, the movable plate 74 will drive the support block 76 to move to the bottom of the placement bin 13, and support the placement bin 13 to prevent the transmission rod 12 from being broken due to excessive force when the welding head 6 moves down and welds the nut; the support device 7 also includes an arc rod 761, a fixed block 762, an elastic rod 763 and a knocking rod 764, the arc rod 761 is fixedly connected to the bottom of the support block 76, and the fixed The block 762 is fixedly connected to the surface of the arc rod 761, the elastic rod 763 is fixedly connected to the top of the fixed block 762, and the knocking rod 764 is fixedly connected to the end of the elastic rod 763 away from the fixed block 762; the inner wall of the movable plate 74 is slidably connected to the surface of the guide column 75, the surface of the threaded rod 73 is rotatably connected to the inner wall of the fixed plate 71, the top of the support block 76 is in contact with the bottom of the placement bin 13, and when the support block 76 moves to the left, the arc rod 761 will move, and the arc rod 761 will move to the left and contact the elastic plate 21 The contact causes the elastic plate 21 to vibrate and cause the nuts on the surface to slide off. After welding, the movable plate 74 will be reset under the action of the threaded rod 73, the support block 76 will move to the right and drive the arc rod 761 to move, the arc rod 761 will drive the fixed block 762 to move to the right, and the fixed block 762 will drive the knocking rod 764 to move to the right through the elastic rod 763. At this time, the motor 11 will drive the placement bin 13 to rotate, and the placement bin 13 will contact the knocking rod 764 after rotation, and the knocking rod 764 will knock it, further promoting the unloading of the welded nuts in the placement bin 13.

[0023] For example, Figure 1 to Figure 8 As shown, after the longitudinal drive device 5 drives the welding head 6 to move downward to weld the nuts, the motor 11 will start and drive the transmission rod 12 to rotate, and the transmission rod 12 will drive the placement bin 13 to rotate, so that the welded nuts in the placement bin 13 are poured out and discharged, and at the same time, the spring will drive the unloading plate 14 to move upward and push the welded nuts to detach from the placement bin 13, preventing the nuts from slipping from the inverted placement bin 13 due to friction, so that the unloading and discharging collection of the nuts are carried out simultaneously, and at the same time, the nuts will fall on the elastic plate 21 after being discharged, and the elastic plate 21 will cushion them to prevent them from falling and being damaged, and the nuts will eventually slide through the elastic plate 21 into the collection box 3.

[0024] When welding is needed again, the motor 72 will start and drive the threaded rod 73 to rotate, and the threaded rod 73 will drive the movable plate 74 which is limited by the guide column 75 and cannot rotate to move, and the movable plate 74 will drive the support block 76 to move to the bottom of the placement bin 13 and support the placement bin 13 to prevent the transmission rod 12 from being broken due to excessive force when the welding head 6 moves down and welds the nut. In this process, the support block 76 will drive the arc rod 761 to move, and the arc rod 761 will move to the left and contact the elastic plate 21, so that the elastic plate 21 The vibration of the plate 21 causes the nuts on the surface to slide off. After welding, the movable plate 74 will be reset under the action of the threaded rod 73, the support block 76 will move to the right and drive the arc rod 761 to move, the arc rod 761 will drive the fixed block 762 to move to the right, and the fixed block 762 will drive the knocking rod 764 to move to the right through the elastic rod 763. At this time, the motor 11 will drive the placement bin 13 to rotate, and the placement bin 13 will contact the knocking rod 764 after rotation, and the knocking rod 764 will knock it, further promoting the unloading of the welded nuts in the placement bin 13.

[0025] like Figure 1 to Figure 8As shown, it shows a projection welding machine for automatically conveying nuts in another embodiment of the present disclosure, the pushing device 8 includes a slide bar 81, a limit plate 82, an inclined block 1 83, an inclined block 2 84 and a push plate 85, the slide bar 81 is slidably connected to the inner wall of the fixed plate 71, the limit plate 82 is fixedly connected to the surface of the slide bar 81, the inclined block 1 83 is fixedly connected to the bottom end of the slide bar 81, the inclined block 2 84 is slidably connected to the inner wall of the base 2 through an elastic member, and the push plate 85 is fixedly connected to the left side of the inclined block 2 84. When the support block 76 moves to the right and resets, it will push the slide bar 81 downward through the inclined surface at the bottom, and the slide bar The slanted block 81 will drive the inclined block 1 83 to move downward, the inclined block 1 83 will push the inclined block 2 84 to move leftward through the inclined surface, the inclined block 2 84 will push the push plate 85 to move leftward, and the push plate 85 will push the nuts collected in the collection box 3 to the left to prevent the nuts from piling up under the elastic plate 21, thereby affecting the subsequent collection of nuts and improving space utilization; the pushing device 8 also includes a transmission plate 851, a baffle 852, a rotating plate 853 and a limiting rod 854, the transmission plate 851 is fixedly connected to the surface of the sliding rod 81, the baffle 852 is fixedly connected to the left side of the transmission plate 851, and the rotating plate 853 is rotated by a torsion spring. The upper surface of the rotating plate 853 is in contact with the surface of the limiting rod 854, a spring is provided between the top of the limiting plate 82 and the fixed plate 71, and the spring is sleeved on the surface of the sliding rod 81, the surface of the inclined block 1 83 is in contact with the surface of the inclined block 2 84, the surface of the push plate 85 is slidably connected to the inner wall of the collection box 3, the surface of the transmission plate 851 is in contact with the inner wall of the base 2, and when the sliding rod 81 moves downward, the baffle 852 will move downward, and the baffle 852 will push the screw on the subsequent elastic plate 21 The nut is blocked to prevent the nut from falling to the right side of the push plate 85. After the support block 76 moves to the left again, the spring drives the slide bar 81 to move up and reset through the limit plate 82. The slide bar 81 will drive the baffle plate 852 to move up, and the baffle plate 852 will drive the rotating plate 853 to move up and contact the limit rod 854. The limit rod 854 will block the rotating plate 853 but the baffle plate 852 will continue to move up. At this time, the rotating plate 853 will be driven to rotate by the limit rod 854, and the rotating plate 853 will guide the top nut to slide toward the elastic plate 21 to prevent the nut from accumulating on the rotating plate 853 and the baffle plate 852. In some examples, the feeding device 9 includes an extension plate 91, a feeding box 92, an electric push rod 93, a connecting plate 94 and a scraper 95. The extension plate 91 is fixedly connected to the front of the workbench 1, the feeding box 92 is slidably connected to the top of the extension plate 91, the electric push rod 93 is fixedly connected to the front of the workbench 1, the connecting plate 94 is fixedly connected to the output end of the electric push rod 93, and the scraper 95 is fixedly connected to the rear of the feeding box 92. When the nuts in the placement bin 13 need to be fed, the electric push rod 93 will drive the connecting plate 94 to move backward, and the connecting plate 94 will drive the feeding box 9 2 moves back to the top of the placement bin 13, at which time the loading box 92 will open and load the nuts into the placement bin 13, and then the electric push rod 93 will drive the loading box 92 to move forward and reset, thereby realizing automatic loading; the bottom of the scraper 95 contacts the top of the workbench 1, and the rear part of the connecting plate 94 is fixedly connected to the front part of the loading box 92. The bottom of the scraper 95 after moving contacts the top of the placement bin 13, and the loading box 92 moves forward while driving the scraper 95 forward. The scraper 95 will push the nuts to ensure that the nuts are in a horizontal state to prevent affecting the welding effect.

[0026] For example, Figure 1 to Figure 8 As shown, when the support block 76 moves to the right and resets, it will push the slide bar 81 downward through the inclined surface at the bottom, and the slide bar 81 will drive the inclined block 1 83 to move downward, and the inclined block 1 83 will push the inclined block 2 84 to move left through the inclined surface, and the inclined block 2 84 will push the push plate 85 to move left, and the push plate 85 will push the nuts collected in the collection box 3 to the left to prevent the nuts from piling up under the elastic plate 21, thereby affecting the collection of subsequent nuts and improving space utilization. When the slide bar 81 moves downward, it will drive the baffle plate 852 to move downward, and the baffle plate 852 will block the nuts on the subsequent elastic plate 21 to prevent the nuts from being piled up. The nut falls to the right side of the push plate 85. After the subsequent support block 76 moves to the left again, the spring drives the slide bar 81 to move up and reset through the limit plate 82. The slide bar 81 will drive the baffle plate 852 to move up, and the baffle plate 852 will drive the rotating plate 853 to move up and contact with the limit rod 854. The limit rod 854 will block the rotating plate 853 but the baffle plate 852 will continue to move up. At this time, the rotating plate 853 will be driven to rotate by the limit rod 854, and the rotating plate 853 will guide the top nut to slide toward the elastic plate 21 to prevent the nut from accumulating on the rotating plate 853 and the baffle plate 852.

[0027] When the nuts in the placement bin 13 need to be loaded, the electric push rod 93 will drive the connecting plate 94 to move backward, and the connecting plate 94 will drive the loading box 92 to move backward to above the placement bin 13. At this time, the loading box 92 will open and load the nuts into the placement bin 13. Then the electric push rod 93 will drive the loading box 92 to move forward and reset. When the loading box 92 moves forward, it will also drive the scraper 95 to move forward. The scraper 95 will push the nuts to ensure that the nuts are in a horizontal state to prevent affecting the welding effect.

[0028] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present disclosure rather than to limit it. Although the present disclosure has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present disclosure may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present disclosure, which should be included in the scope of the claims of the present disclosure.

Claims

1. A projection welding machine for automatically conveying nuts, comprising a workbench (1), characterized in that: It also includes a supporting device (7), a pushing device (8) and a loading device (9); The bottom of the workbench (1) is fixedly connected to a base (2), the inner wall of the base (2) is fixedly connected to an elastic plate (21), the inner wall of the base (2) is slidably connected to a collecting box (3), the top of the workbench (1) is fixedly connected to a support plate (4), the top of the support plate (4) is fixedly connected to a longitudinal drive device (5), the output end of the longitudinal drive device (5) is fixedly connected to a welding head (6), the rear of the workbench (1) is fixedly connected to a motor (11), the output end of the motor (11) is fixedly connected to a transmission rod (12), the end of the transmission rod (12) away from the motor (11) is fixedly connected to a placement bin (13), and the bottom wall inside the placement bin (13) is slidably connected to a discharge plate (14) via a spring; The supporting device (7) is arranged on the right side of the workbench (1), the pushing device (8) is arranged on the inner wall of the base (2), and the loading device (9) is arranged at the front of the workbench (1).

2. A projection welding machine for automatically conveying nuts according to claim 1, characterized in that: The surface of the transmission rod (12) is rotatably connected to the inner wall of the workbench (1), and the surface of the welding head (6) after movement is in contact with the inner wall of the placement bin (13) and the top of the discharge plate (14) respectively.

3. A projection welding machine for automatically conveying nuts according to claim 2, characterized in that: The supporting device (7) comprises a fixed plate (71), a motor (72), a threaded rod (73), a movable plate (74), a guide column (75) and a supporting block (76); the fixed plate (71) is fixedly connected to the right side of the workbench (1); the motor (72) is fixedly connected to the right side of the fixed plate (71); the threaded rod (73) is fixedly connected to the output end of the motor (72); the movable plate (74) is threadedly connected to the surface of the threaded rod (73); the guide column (75) is fixedly connected to the inner wall of the fixed plate (71); and the supporting block (76) is fixedly connected to the top of the movable plate (74).

4. A projection welding machine for automatically conveying nuts according to claim 3, characterized in that: The support device (7) further comprises an arc-shaped rod (761), a fixed block (762), an elastic rod (763) and a knocking rod (764); the arc-shaped rod (761) is fixedly connected to the bottom of the support block (76); the fixed block (762) is fixedly connected to the surface of the arc-shaped rod (761); the elastic rod (763) is fixedly connected to the top of the fixed block (762); and the knocking rod (764) is fixedly connected to an end of the elastic rod (763) away from the fixed block (762).

5. A projection welding machine for automatically conveying nuts according to claim 4, characterized in that: The inner wall of the movable plate (74) is slidably connected to the surface of the guide column (75), the surface of the threaded rod (73) is rotatably connected to the inner wall of the fixed plate (71), and the top of the support block (76) is in contact with the bottom of the placement bin (13).

6. A projection welding machine for automatically conveying nuts according to claim 5, characterized in that: The pushing device (8) comprises a slide bar (81), a limit plate (82), an inclined block 1 (83), an inclined block 2 (84) and a push plate (85); the slide bar (81) is slidably connected to the inner wall of the fixed plate (71); the limit plate (82) is fixedly connected to the surface of the slide bar (81); the inclined block 1 (83) is fixedly connected to the bottom end of the slide bar (81); the inclined block 2 (84) is slidably connected to the inner wall of the base (2) via an elastic member; and the push plate (85) is fixedly connected to the left side of the inclined block 2 (84).

7. A projection welding machine for automatically conveying nuts according to claim 6, characterized in that: The pushing device (8) further comprises a transmission plate (851), a baffle plate (852), a rotating plate (853) and a limiting rod (854); the transmission plate (851) is fixedly connected to the surface of the sliding rod (81); the baffle plate (852) is fixedly connected to the left side of the transmission plate (851); the rotating plate (853) is rotatably connected to the inner wall of the baffle plate (852) via a torsion spring; and the limiting rod (854) is fixedly connected to the inner wall of the base (2).

8. A projection welding machine for automatically conveying nuts according to claim 7, characterized in that: The upper surface of the rotating plate (853) and the surface of the limiting rod (854) are in contact with each other, a spring is provided between the top of the limiting plate (82) and the fixed plate (71), and the spring is sleeved on the surface of the sliding rod (81), the surface of the inclined block 1 (83) and the surface of the inclined block 2 (84) are in contact with each other, the surface of the pushing plate (85) is slidably connected to the inner wall of the collecting box (3), and the surface of the transmission plate (851) is in contact with the inner wall of the base (2).

9. A projection welding machine for automatically conveying nuts according to claim 8, characterized in that: The feeding device (9) comprises an extension plate (91), a feeding box (92), an electric push rod (93), a connecting plate (94) and a scraper (95); the extension plate (91) is fixedly connected to the front of the workbench (1); the feeding box (92) is slidably connected to the top of the extension plate (91); the electric push rod (93) is fixedly connected to the front of the workbench (1); the connecting plate (94) is fixedly connected to the output end of the electric push rod (93); and the scraper (95) is fixedly connected to the rear of the feeding box (92).

10. A projection welding machine for automatically conveying nuts according to claim 9, characterized in that: The bottom of the scraper (95) contacts the top of the workbench (1), the rear of the connecting plate (94) is fixedly connected to the front of the loading box (92), and the bottom of the scraper (95) contacts the top of the placement bin (13) after movement.

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