Workpiece discharging mechanism suitable for spot welding device

Abstract

The utility model relates to the field of automobile manufacturing, and discloses a workpiece discharging mechanism suitable for a spot welding device, which comprises a driving mechanism and two guide rails arranged on two opposite sides of the driving mechanism, and further comprises a base and a placing frame, the driving mechanism is connected to the base so as to drive the base to move along the guide rail, a plurality of air cylinders are arranged on the base so as to support the placing frame upwards, the placing frame is L-shaped, an inclined supporting rod is connected to the inner side of the included angle of the placing frame, the tail end of the supporting rod is detachably connected with a clamping piece, and the clamping piece is fixedly connected with the base. The automobile bottom plates can be obliquely placed on the placing frame, the automobile bottom plates are matched with the L-shaped placing frame to form a triangular shape, the occupied space can be reduced by obliquely placing the automobile bottom plates, and more automobile bottom plates can be conveyed on a single guide rail at the same time; spot welding operation is carried out on the obliquely-placed automobile bottom plate, and chippings generated in the spot welding process are not prone to being reserved on the automobile bottom plate.

Description

Technical Field

[0001] The utility model relates to the field of automobile manufacturing, in particular to a piece-discharging mechanism suitable for a spot welding device. Background Art

[0002] Automotive spot welding is a welding method commonly used in the automotive manufacturing process. It is mainly used to connect the car body and other parts. Spot welding applies pressure and electric current between two metal surfaces to locally melt the metal and form a weld point, thus achieving a strong connection.

[0003] Prior art authorization publication number CN109940256B discloses a process for welding a rear floor panel of an automobile. According to its specification, spot welding is required on the automobile floor panel or floor plate during the automobile manufacturing process. To ensure sufficient strength of such panels, the entire large panel is usually formed into the corresponding automobile floor panel or floor plate at one time, and then the spot welding operation is performed. However, due to the large size of the automobile floor panel or floor plate, if it is laid flat on a conveyor belt after spot welding, it will take up a large amount of space, so each conveyor belt can only transport a small number of automobile floor panels or floor plates at a time. This transportation method is inefficient, affecting production efficiency. Utility Model Content

[0004] The purpose of this utility model is to provide a discharge mechanism suitable for a spot welding device to solve the problem that the existing transportation method is to place the car bottom plate or car floor flat on the conveyor belt, resulting in a large space occupied by the conveyor belt and thus affecting the transportation efficiency. The specific technical solution is as follows:

[0005] A discharge mechanism suitable for a spot welding device includes a drive mechanism and two guide rails arranged on opposite sides of the drive mechanism, and also includes a base and a placement rack. The base is slidably connected to the guide rails, and the drive mechanism is connected to the base to drive the base to move along the guide rails. A plurality of cylinders are provided on the base to support the placement rack upward. The placement rack is L-shaped, and an inclined support rod is connected to the inner side of the angle of the placement rack, and the end of the support rod is detachably connected to a clamping member.

[0006] Preferably, the placement rack includes a first main rod arranged vertically and a second main rod arranged horizontally, the middle section of the second main rod is vertically connected to a secondary rod, the support rod is connected to the secondary rod, and the angle between the support rod and the secondary rod is an obtuse angle.

[0007] Preferably, a plurality of rotatable rollers are connected to the bottom of the second main rod.

[0008] Preferably, the cylinder is extended upward as the extended state, and is retracted downward as the retracted state. When the cylinder is transformed from the retracted state to the extended state, the roller is separated from the top surface of the base.

[0009] Preferably, it also includes an end cover and a slider, the end cover covers the guide rail, the side of the end cover is provided with an opening, the slider is slidably connected to the guide rail, the slider is connected to an L-shaped connecting rod, the connecting rod passes through the opening and is connected to the placement rack.

[0010] Preferably, a threaded hole is provided on the end surface of the support rod, and the clamping member includes a screw rod, a first fastening cover is connected to the end of the screw rod, and the screw rod is threadably matched with the threaded hole.

[0011] Preferably, an opening is provided on the end surface of the support rod, and the clamping member includes an elastic rod, the end of the elastic rod is connected to a second fastening cover, and the elastic rod is inserted into the opening and has an interference fit therewith.

[0012] Preferably, the driving mechanism includes a linear driver, and the linear driver is connected to the front end surface of the base.

[0013] Beneficial effects of the utility model:

[0014] 1. The car floor can be placed on the placement rack at an angle. The car floor and the L-shaped placement rack form a triangle shape. Placing the car floor at an angle can reduce the occupied space and enable more car floors to be transported on a single guide rail at the same time.

[0015] 2. If spot welding is performed on an inclined car floor, the debris generated during the spot welding process is not likely to remain on the car floor;

[0016] 3. By setting up the secondary rods and support rods, in addition to fixing the car floor, it can also provide support for the middle section of the car floor, further improving stability;

[0017] 4. The rollers are provided to facilitate the removal of the rack and the vehicle floor from the guide rails;

[0018] 5. The end cover can protect the guide rail to prevent it from being affected by debris or dust generated during the spot welding process, ensuring that the guide rail can operate normally.

[0019] Additional aspects and advantages of the present invention will be partially given in the description below, and partially will become apparent from the description below, or will be understood through the practice of the present invention. Of course, it is not necessary to achieve all of the advantages described above at the same time when implementing any product or method of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0021] Figure 1 It is a structural diagram of the present utility model.

[0022] Figure 2 It is a structural schematic diagram of the placement rack of the present utility model.

[0023] Figure 3 It is a structural schematic diagram of the guide rail of the present utility model.

[0024] Figure 4 It is a structural diagram of the driving mechanism of the utility model.

[0025] Figure 5 It is a structural schematic diagram of the clamping member of the present utility model.

[0026] In the figure: 1. driving mechanism; 2. guide rail; 3. base; 4. placement rack; 5. end cover; 6. slider; 7. connecting rod; 8. cylinder; 21. first main rod; 22. second main rod; 23. support rod; 24. secondary rod; 25. clamping member; 26. roller. DETAILED DESCRIPTION

[0027] The following is a clear and complete description of the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] References to "embodiments" herein mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0029] The existing transportation method is to place the car bottom plate or car floor flat on the conveyor belt, which takes up a lot of space on the conveyor belt and affects the transportation efficiency. Figure 1-5The present invention provides an embodiment to solve the above-mentioned problem, specifically comprising a driving mechanism 1 and two guide rails 2 arranged on opposite sides of the driving mechanism 1, a base 3 and a placement frame 4, the base 3 being slidably connected to the guide rails 2, the driving mechanism 1 being connected to the base 3 to drive the base 3 to move along the guide rails 2, a plurality of cylinders 8 being provided on the base 3 to prop up the placement frame 4, the placement frame 4 being L-shaped, and an inclined support rod 23 being connected to the inner side of the included angle of the placement frame 4, the end of the support rod 23 being detachably connected to a clamping member 25;

[0030] It can be understood that during the spot welding process or after the spot welding is completed, the car floor can be placed on the placement rack 4 at an angle. The car floor cooperates with the L-shaped placement rack 4 to form a triangular shape. Placing the car floor at an angle can reduce the occupied space, so that more car floors can be transported on a single guide rail 2 at the same time. Secondly, if the spot welding operation is performed on the car floor placed at an angle, the debris generated during the spot welding process is not easy to remain on the car floor.

[0031] Generally, the car floor usually has corresponding mounting holes reserved therefor, and the clamping member 25 of this embodiment can pass through the mounting holes of the car floor and then connect with the support rod 23. The clamping member 25 and the support rod 23 can further enhance the stability of the car floor on the placement rack 4, which is convenient for transportation or improves the accuracy of spot welding.

[0032] In some embodiments, the placement rack 4 includes a vertically arranged first main rod 21 and a horizontally arranged second main rod 22. The first main rod 21 is connected to the second main rod 22. The middle section of the second main rod 22 is vertically connected to the secondary rod 24, and the support rod 23 is connected to the secondary rod 24. By setting the secondary rod 24 and the support rod 23, support can also be provided to the middle section of the car floor, further improving stability.

[0033] Preferably, a protrusion is formed on the front end of the top face of the second main rod 22, and the protrusion can be used to limit the car floor so that the car floor cannot slide off the front end of the second main rod 22;

[0034] Regarding the cooperation between the support rod 23 and the clamping member 25, the present invention provides the following two different embodiments:

[0035] In some embodiments, a threaded hole is provided on the end face of the support rod 23, and the clamping member 25 includes a screw rod, and a first fastening cover is connected to the end of the screw rod. The screw rod is threadedly engaged with the threaded hole, that is, the screw rod is passed through the mounting hole of the car floor, and by tightening the screw rod, the first fastening cover cooperates with the support rod 23 to clamp the car floor, thereby fixing the car floor.

[0036] In some embodiments, an opening is provided on the end face of the support rod 23, and the clamping member 25 includes an elastic rod, the end of which is connected to a second fastening cover, and the elastic rod is inserted into the opening and interference fits with it, that is, the elastic rod is passed through the mounting hole of the car floor, and the elastic rod is squeezed into the opening of the support rod 23, so that the second fastening cover cooperates with the support rod 23 to clamp the car floor, thereby fixing the car floor. In this embodiment, the elastic rod has the ability to deform, and its material can be plastic, hard rubber or polyurethane, etc.

[0037] After the car floor is transported to the predetermined position by the guide rail 2, it is necessary to unload the car floor from the floor or the guide rail 2. Since the car floor is heavy, it is necessary to make further improvements to the placement rack 4. Specifically, a plurality of rotatable rollers 26 are connected to the bottom of the second main rod 22. The cylinder 8 is extended upward as the extended state, and the cylinder 8 is retracted downward as the retracted state. When the cylinder 8 is changed from the retracted state to the extended state, the rollers 26 are separated from the top surface of the base 3. That is, at a certain time point during the retraction process of the cylinder 8, the rollers 26 will drop to contact the top surface of the base 3, and when the cylinder 8 is extended, the rollers 26 will be lifted to separate from the base 3.

[0038] By providing the rollers 26, the rack 4 and the vehicle floor can be directly removed from the guide rails 2 by simply placing a bridging plate on the guide rails 2. However, the presence of the rollers 26 also makes it easy for the rack 4 to slide on the floor during transportation. Therefore, it is necessary to provide the cylinder 8 to lift the rack 4 so that the rollers 26 are separated from the base 3. This prevents the rack 4 from sliding on the floor, thereby ensuring transportation stability.

[0039] During the spot welding process of the car floor or after the spot welding is completed, it is placed on the placement rack 4 at an angle. The spot welding debris or dust falling from the car floor can easily fall directly onto the track below, thereby affecting the normal operation of the track. Therefore, the utility model also provides an embodiment, which also includes an end cover 5 and a slider 6. The end cover 5 covers the guide rail 2. The side of the end cover 5 is provided with an opening. The slider 6 is slidably connected to the guide rail 2. The slider 6 is connected to an L-shaped connecting rod 7. The connecting rod 7 passes through the opening and is connected to the placement rack 4. By setting the end cover 5, the guide rail 2 can be protected to avoid being affected by debris or dust generated during the spot welding process, thereby ensuring that the guide rail 2 can operate normally.

[0040] Regarding the driving mechanism 1, the driving mechanism 1 includes a linear drive, which is connected to the front end face of the base 3. In this embodiment, the linear drive can be a cylinder, a screw transmission mechanism and a motor, or other driving devices that can perform linear drive.

[0041] It should be noted that the terms "first," "second," etc., used herein are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the technical features being referred to. Therefore, a feature designated as "first" or "second" may explicitly or implicitly include one or more of the aforementioned features.

[0042] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations that come within the meaning and range of equivalents of the claims be embraced within the present invention.

Claims

1. A discharge mechanism suitable for a spot welding device, characterized in that: It includes a driving mechanism and two guide rails arranged on opposite sides of the driving mechanism, as well as a base and a placement frame. The base is slidably connected to the guide rails, and the driving mechanism is connected to the base to drive the base to move along the guide rails. A number of cylinders are provided on the base to prop up the placement frame. The placement frame is L-shaped, and an inclined support rod is connected to the inner side of the angle of the placement frame, and the end of the support rod is detachably connected to a clamping member.

2. A discharge mechanism for a spot welding device according to claim 1, characterized in that: The placement rack includes a first main rod arranged vertically and a second main rod arranged horizontally. The middle section of the second main rod is vertically connected to a secondary rod, and the support rod is connected to the secondary rod.

3. A discharge mechanism for a spot welding device according to claim 2, characterized in that: The bottom of the second main rod is connected to a plurality of rotatable rollers.

4. A discharge mechanism for a spot welding device according to claim 3, characterized in that: The cylinder is extended upward as the extended state, and is contracted downward as the contracted state. When the cylinder is transformed from the contracted state to the extended state, the roller is separated from the top surface of the base.

5. The discharge mechanism for a spot welding device according to claim 4, characterized in that: It also includes an end cover and a slider, the end cover covers the guide rail, the side of the end cover is provided with an opening, the slider is slidably connected to the guide rail, the slider is connected to an L-shaped connecting rod, the connecting rod passes through the opening and is connected to the placement rack.

6. The discharge mechanism for a spot welding device according to claim 1, characterized in that: A threaded hole is provided on the end surface of the support rod, and the clamping member includes a screw rod, the end of which is connected to a first fastening cover, and the screw rod is threadably matched with the threaded hole.

7. The discharge mechanism for a spot welding device according to claim 1, characterized in that: An opening is provided on the end surface of the support rod. The clamping member includes an elastic rod. The end of the elastic rod is connected to a second fastening cover. The elastic rod is inserted into the opening and has an interference fit therewith.

8. The discharge mechanism for a spot welding device according to claim 1, characterized in that: The driving mechanism includes a linear driver, and the linear driver is connected to the front end surface of the base.

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