Automobile subframe assembly welding fixture

Abstract

The utility model provides a welding fixture for an automobile sub-frame assembly, which belongs to the technical field of automobiles. The fixture comprises a base, an adjustment component and a quick-change component. The adjustment component comprises a stepper motor arranged at the bottom of an inner wall of a connecting seat, the top of an output shaft of the stepper motor penetrates through the base and is provided with a turntable, two connecting plates are arranged on the top of the turntable, the inside of the connecting plate is rotatably connected with a connecting plate, a first electric cylinder is arranged on one side of the connecting plate, the output shaft of the first electric cylinder penetrates through the connecting plate and is provided with a clamping frame, a fixing frame is arranged on one side of the connecting plate, a synchronous motor is arranged on the top of the fixing frame, an output shaft end of the synchronous motor is rotatably connected with the connecting plate, a gear is arranged on the outer wall of the output shaft of the synchronous motor, a gear is meshed with a gear ring on the top of the gear, and the inside of the gear ring is fixedly connected with the connecting plate.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobiles, and in particular relates to a welding fixture for an automobile auxiliary frame assembly. Background Art

[0002] The subframe can be regarded as the skeleton of the front and rear axles, and is an integral part of the front and rear axles. The subframe is not a complete frame, but a fixed rod that supports the front and rear axles and suspension, so that the axles and suspension are connected to the "main frame" through it. It is usually called a "subframe". After searching, the application number "CN202320277482.X" discloses "a welding fixture for an automobile subframe assembly", which records that "through the setting of the moving device, the distance between the fixtures can be controlled and adjusted according to the width of the subframe, and secondly, by setting the clamping device, the clamping force of the automobile subframe is uniform and stable, which improves the efficiency and accuracy of welding." By using the setting of the moving device, the distance between the fixtures can indeed be controlled and adjusted according to the width of the subframe, and secondly, by setting the clamping device, the clamping force of the automobile subframe is uniform and stable, which improves the efficiency and accuracy of welding. However, the above comparative documents still have the following problems in actual use:

[0003] In actual use, it is inconvenient to adjust, and it needs to be turned over and rotated during welding. The inconvenient adjustment leads to poor welding efficiency. In addition, the clamping plate cannot be replaced quickly during use, resulting in a large disassembly when the clamping plate needs to be replaced to adapt to different subframes, resulting in low work efficiency.

[0004] Based on this, it is extremely practical to provide a clamp that can achieve easy adjustment and quick replacement of clamping plates. Utility Model Content

[0005] The utility model aims to provide a welding fixture for an automobile subframe assembly, aiming to solve the above technical problems.

[0006] The embodiment of the utility model provides a welding fixture for an automobile subframe assembly, comprising a base, an adjustment component and a quick-change component.

[0007] Wherein, a connecting seat is provided on the top of the base;

[0008] The adjustment component includes a stepper motor arranged at the bottom of the inner wall of the connecting seat, the top of the output shaft of the stepper motor passes through the base and is provided with a turntable, the top of the turntable is provided with two connecting plates, the inside of the connecting plate is rotatably connected with the connecting plate, a first electric cylinder is provided on one side of the connecting plate, the output shaft of the first electric cylinder passes through the connecting plate and is provided with a clamping frame, a fixing frame is provided on one side of the connecting plate, a synchronous motor is provided on the top of the fixing frame, the output shaft end of the synchronous motor is rotatably connected with the connecting plate, a gear is provided on the outer wall of the output shaft of the synchronous motor, a gear ring is meshed with the top of the gear, and the inside of the gear ring is fixedly connected with the connecting plate;

[0009] The quick-change assembly includes a second electric cylinder arranged on the top of the clamping frame, the output shaft of the second electric cylinder passes through the top of the inner wall of the clamping frame and is provided with a connector, auxiliary grooves are provided on both sides of the connector, and a plurality of first hinged seats are provided at both ends of the inner wall of the connector, and a plurality of the first hinged seats are hinged inside with a clamping frame, and a second hinged seat is provided at one end of a plurality of the clamping frames, and a plurality of the second hinged seats are hinged inside with two connecting rods, and an electric telescopic rod is provided on one side of the two connecting rods, and an isolation plate is provided at the end of the two electric telescopic rods, and the outer wall of the isolation plate is fixedly connected to the interior of the connector.

[0010] In one embodiment of the utility model, the bottom of the connector is slidably connected to a fixed frame, both sides of the fixed frame are provided with auxiliary grooves identical to the connector, and the outer walls of several connector frames are slidably connected to the auxiliary grooves.

[0011] In an implementation manner of the utility model, a clamping plate is provided at the bottom of the fixing frame, and a shaped groove is opened at the bottom of the clamping plate.

[0012] In one embodiment of the utility model, a connecting ring is provided at the bottom of the turntable, the bottom of the connecting ring is rotatably connected to an auxiliary ring, and the bottom of the auxiliary ring is fixedly connected to the connecting seat.

[0013] In an implementation manner of the utility model, two supporting legs are provided at the bottom of the base.

[0014] In one implementation of the utility model, the base is cast from metal chromium, and a PLC controller is arranged at the top corner of the base.

[0015] In one implementation of the utility model, the stepper motor, the first electric cylinder, the synchronous motor, the second electric cylinder and the electric telescopic rod are all electrically connected to a PLC controller, and the PLC controller is electrically connected to an external power supply.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1) Through the stepper motor provided, it is convenient for the user to turn on the stepper motor through the PLC controller, so that the stepper motor drives the turntable to rotate, and the turntable rotates and then drives the structure on the top of the turntable to rotate to achieve adjustment, and the synchronous motor is turned on by the PLC controller, so that the two synchronous motors rotate and then drive the gears to rotate, and the gears rotate, and then the gear ring drives the connecting disk to rotate, and the clamping frame at the end of the output shaft of the first electric cylinder and its internal parts rotate, thereby realizing rotation adjustment without dead angles, so that it is more convenient during welding;

[0018] 2) The electric telescopic rod is provided to facilitate the user to replace different clamping plates. The user opens the electric telescopic rod through the PLC controller to move the electric telescopic rod to one side, and then moves the connecting rod to one side, and then the second hinge seat cooperates with the first hinge seat to make the clamping frame shrink inward, and then withdraw it from the auxiliary groove in the clamping frame and the fixed frame, and cancel the limit. At this time, the user grabs the clamping plate, removes it together with the fixed frame, and takes out a new clamping plate and installs it, thereby achieving the purpose of quickly replacing the clamping plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0020] Figure 1 It is a schematic diagram of the structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the internal structure of the connecting seat of the utility model;

[0022] Figure 3 This is an enlarged structural diagram of the connection plate of the utility model;

[0023] Figure 4 The figure is a schematic diagram of the internal structure of the card connector of the utility model.

[0024] In the figure: 100, base; 110, connecting seat; 200, adjustment component; 210, stepping motor; 220, turntable; 230, connecting plate; 240, connecting plate; 250, first electric cylinder; 260, clamping frame; 270, fixing frame; 280, synchronous motor; 290, gear; 2910, gear ring; 300, quick change component; 310, second electric cylinder; 320, connector; 330, first articulated seat; 340, clamping frame; 350, second articulated seat; 360, connecting rod; 370, electric telescopic rod; 380, isolation plate; 400, fixing frame; 500, clamping plate; 600, connecting ring; 700, auxiliary ring; 800, supporting leg. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the implementation of the utility model clearer, the technical solution in the implementation of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation of the utility model. Obviously, the described implementation is a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] Example

[0027] See also Figure 1-4 A welding fixture for an automobile subframe assembly includes a base 100, an adjustment component 200 and a quick-change component 300.

[0028] For details, please refer to Figure 1 A connecting seat 110 is provided on the top of the base 100 .

[0029] See also Figure 1-2 The adjustment component 200 includes a stepper motor 210 arranged at the bottom of the inner wall of the connecting seat 110, the top of the output shaft of the stepper motor 210 passes through the base 100 and is provided with a turntable 220, two connecting plates 230 are arranged on the top of the turntable 220, the inner part of the connecting plate 230 is rotatably connected with a connecting plate 240, a first electric cylinder 250 is arranged on one side of the connecting plate 240, the output shaft of the first electric cylinder 250 passes through the connecting plate 240 and is provided with a clamping frame 260, a fixing frame 270 is arranged on one side of the connecting plate 230, a synchronous motor 280 is arranged on the top of the fixing frame 270, the output shaft end of the synchronous motor 280 is rotatably connected to the connecting plate 230, a gear 290 is arranged on the outer wall of the output shaft of the synchronous motor 280, a gear ring 2910 is meshed on the top of the gear 290, and the inner part of the gear ring 2910 is fixedly connected to the connecting plate 240.

[0030] In a specific embodiment, a stepper motor 210 is provided, which facilitates the user to turn on the stepper motor 210 through a PLC controller, so that the stepper motor 210 drives the turntable 220 to rotate, and the rotation of the turntable 220 drives the structure on the top of the turntable 220 to rotate, so as to achieve adjustment, and the PLC controller is used to turn on the synchronous motor 280, so that the two synchronous motors 280 rotate and then drive the gear 290 to rotate, and the gear 290 rotates, and then the gear ring 2910 drives the connecting disk 240 to rotate, so that the clamping frame 260 and its internal parts at the end of the output shaft of the first electric cylinder 250 rotate, thereby achieving rotation adjustment without dead angles, so as to be more convenient during welding.

[0031] See also Figure 3-4The quick-change assembly 300 includes a second electric cylinder 310 arranged on the top of the clamping frame 260, the output shaft of the second electric cylinder 310 passes through the inner wall top of the clamping frame 260 and is provided with a connector 320, auxiliary grooves are provided on both sides of the connector 320, and a plurality of first hinge seats 330 are provided at both ends of the inner wall of the connector 320, and a plurality of first hinge seats 330 are hinged inside with a clamping frame 340, and a second hinge seat 350 is provided at one end of a plurality of clamping frames 340, and a plurality of second hinge seats 350 are hinged inside with two connecting rods 360, and an electric telescopic rod 370 is provided on one side of the two connecting rods 360, and an isolation plate 380 is provided at the end of the two electric telescopic rods 370, and the outer wall of the isolation plate 380 is fixedly connected to the inside of the connector 320.

[0032] In a specific embodiment, an electric telescopic rod 370 is provided to facilitate the user to replace a different clamping plate 500. The user opens the electric telescopic rod 370 through the PLC controller to move the electric telescopic rod 370 to one side, and then moves the connecting rod 360 to one side, and then cooperates with the second hinge seat 350 and the first hinge seat 330 to make the clamping frame 340 shrink inward, and then retract it from the auxiliary groove in the clamping frame 340 and the fixed frame 400, and cancel the limit. At this time, the user grabs the clamping plate 500, removes it together with the fixed frame 400, and takes out a new clamping plate 500 to install it, thereby achieving the purpose of quickly replacing the clamping plate 500.

[0033] See also Figure 3 The bottom of the card connector 320 is slidably connected to the fixed frame 400, and both sides of the fixed frame 400 are provided with auxiliary grooves identical to those of the card connector 320, and the outer walls of the plurality of card connector frames 340 are slidably connected to the auxiliary grooves.

[0034] In a specific embodiment, the auxiliary groove is provided so that the auxiliary groove can be limited by the clamping frame 340 during use, so that the fixing frame 400 is connected to the clamp 320 to achieve the purpose of fixing.

[0035] See also Figure 3 A clamping plate 500 is provided at the bottom of the fixing frame 400 , and a shaped groove is opened at the bottom of the clamping plate 500 .

[0036] In a specific embodiment, the clamping plate 500 is provided to facilitate the user to open the second electric cylinder 310 through the PLC controller, so that the second electric cylinder 310 moves downward, and then drives the connector 320, the fixed frame 400 and the clamping plate 500 to move downward, and then clamp the material.

[0037] See also Figure 1A connecting ring 600 is provided at the bottom of the turntable 220 , and an auxiliary ring 700 is rotatably connected to the bottom of the connecting ring 600 , and the bottom of the auxiliary ring 700 is fixedly connected to the connecting seat 110 .

[0038] In a specific embodiment, the auxiliary ring 700 is provided so that when the turntable 220 rotates, the connecting ring 600 can be driven to rotate on the auxiliary ring 700, so that the turntable 220 can be more stable when rotating.

[0039] See also Figure 1 Two supporting legs 800 are provided at the bottom of the base 100 .

[0040] In a specific embodiment, the support legs 800 are provided to facilitate the support and fixation of the base 100, so that the base 100 can be more stable during use, avoiding shaking during use and improving stability.

[0041] See also Figure 1 The base 100 is cast from metal chromium, and a PLC controller is disposed at a top corner of the base 100 .

[0042] In a specific embodiment, by providing metal chromium, the toughness of metal chromium can be utilized during use, so that the base 100 is more solid during use, and breakage during use is avoided, thereby improving stability.

[0043] See also Figure 1-4 The stepper motor 210, the first electric cylinder 250, the synchronous motor 280, the second electric cylinder 310 and the electric telescopic rod 370 are all electrically connected to the PLC controller, and the PLC controller is electrically connected to the external power supply.

[0044] In a specific embodiment, a PLC controller is provided to facilitate power-on control of electrical equipment, so that the electrical equipment can be powered on when it needs electricity, avoiding the situation where it cannot be powered on when it needs electricity.

[0045] When in use, firstly, through the provided clamping plate 500, it is convenient for the user to open the second electric cylinder 310 through the PLC controller, so that the second electric cylinder 310 moves downward, and then drives the connector 320, the fixing frame 400 and the clamping plate 500 to move downward, and then clamps the material for welding, and then through the provided stepper motor 210, it is convenient for the user to turn on the stepper motor 210 through the PLC controller, so that the stepper motor 210 drives the turntable 220 to rotate, and the rotation of the turntable 220 drives the structure on the top of the turntable 220 to rotate, so as to achieve adjustment, and use the PLC controller to turn on the synchronous motor 280, so that the two synchronous motors 280 rotate and then drive the gear 290 to rotate, and the gear 290 rotates, and then the gear ring 2910 drives the connecting disk 240 to rotate, so that the first electric cylinder The clamping frame 260 at the end of the output shaft 250 and its internal parts rotate, thereby realizing rotation adjustment without dead angles, so as to be more convenient during welding. Then, through the provided electric telescopic rod 370, when the user needs to replace a different clamping plate 500, the user opens the electric telescopic rod 370 through the PLC controller to move the electric telescopic rod 370 to one side, and then moves the connecting rod 360 to one side, and then cooperates with the second articulated seat 350 and the first articulated seat 330 to make the clamping frame 340 shrink inwardly, and then withdraw from the auxiliary groove in the clamping frame 340 and the fixed frame 400, and finally cancel the limit. At this time, the user grabs the clamping plate 500, removes it together with the connected fixed frame 400, and takes out a new clamping plate 500 and installs it, thereby achieving the purpose of quickly replacing the clamping plate 500.

[0046] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A welding fixture for an automobile subframe assembly, characterized in that: include: A base (100), wherein a connecting seat (110) is provided on the top of the base (100); An adjustment component (200), the adjustment component (200) comprising a stepper motor (210) arranged at the bottom of the inner wall of the connection seat (110), the top of the output shaft of the stepper motor (210) passing through the base (100) is provided with a turntable (220), the top of the turntable (220) is provided with two connection plates (230), the interior of the connection plate (230) is rotatably connected to a connection plate (240), a first electric cylinder (250) is provided on one side of the connection plate (240), and the output shaft of the first electric cylinder (250) A clamping frame (260) is provided through the connecting plate (240), a fixing frame (270) is provided on one side of the connecting plate (230), a synchronous motor (280) is provided on the top of the fixing frame (270), an output shaft end of the synchronous motor (280) is rotatably connected to the connecting plate (230), a gear (290) is provided on the outer wall of the output shaft of the synchronous motor (280), a gear ring (2910) is meshed on the top of the gear (290), and the interior of the gear ring (2910) is fixedly connected to the connecting plate (240); A quick-change assembly (300), the quick-change assembly (300) comprising a second electric cylinder (310) arranged at the top of a clamping frame (260), the output shaft of the second electric cylinder (310) passing through the top of the inner wall of the clamping frame (260), a connector (320) being arranged, auxiliary grooves being arranged on both sides of the connector (320), a plurality of first articulated seats (330) being arranged at both ends of the inner wall of the plurality of first articulated seats (330), and the interior of the plurality of first articulated seats (330) Each of the plurality of clamping frames (340) is hingedly connected to a clamping frame (340), one end of each of the plurality of clamping frames (340) is provided with a second hinge seat (350), the interior of each of the plurality of second hinge seats (350) is hingedly connected to two connecting rods (360), one side of each of the two connecting rods (360) is provided with an electric telescopic rod (370), the ends of the two electric telescopic rods (370) are provided with an isolation plate (380), and the outer wall of the isolation plate (380) is fixedly connected to the interior of the clamping device (320).

2. The automobile subframe assembly welding fixture according to claim 1, characterized in that: The bottom of the connector (320) is slidably connected to a fixed frame (400), both sides of the fixed frame (400) are provided with auxiliary grooves identical to those of the connector (320), and the outer walls of a plurality of connector frames (340) are slidably connected to the auxiliary grooves.

3. The automobile subframe assembly welding fixture according to claim 2 is characterized in that: A clamping plate (500) is provided at the bottom of the fixing frame (400), and a shaped groove is provided at the bottom of the clamping plate (500).

4. The automobile subframe assembly welding fixture according to claim 1, characterized in that: A connecting ring (600) is provided at the bottom of the rotating disk (220), the bottom of the connecting ring (600) is rotatably connected to an auxiliary ring (700), and the bottom of the auxiliary ring (700) is fixedly connected to the connecting seat (110).

5. The automobile subframe assembly welding fixture according to claim 1, characterized in that: Two supporting legs (800) are provided at the bottom of the base (100).

6. The automobile subframe assembly welding fixture according to claim 5, characterized in that: The base (100) is cast from metal chromium, and a PLC controller is provided at a top corner of the base (100).

7. The automobile subframe assembly welding fixture according to claim 6 is characterized in that: The stepper motor (210), the first electric cylinder (250), the synchronous motor (280), the second electric cylinder (310) and the electric telescopic rod (370) are all electrically connected to a PLC controller, and the PLC controller is electrically connected to an external power supply.

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