Welding fixture

Abstract

The utility model relates to the technical field of clamps, in particular to a welding clamp. Comprising a workbench, a lifting mechanism and an objective table. A positioning pin and a positioning column are arranged on the objective table, and the positioning pin and the positioning column are used for inserting and positioning the automobile part plate; the induction mechanism is provided with a welding ring and a fastening column, the welding ring is provided with a positioning welding hole, the fastening ring is arranged on one side of the welding ring, and the fastening ring is provided with a positioning hole in which a positioning pin is inserted; compared with the prior art, the automobile part plate can be quickly fixed and can be quickly loosened, so that the automobile part plate can be quickly mounted and dismounted, the mounting and dismounting time of the automobile part plate is greatly shortened, the welding efficiency of the automobile part plate is improved, the objective table is further provided with a positioning pin and a positioning column, and the welding efficiency is improved. And the automobile part plate can be effectively positioned and mounted, and the situation that the follow-up welding quality is affected due to the fact that the automobile part plate slightly moves is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of clamps, in particular to a welding clamp. Background Art

[0002] At present, in the production process of auto parts, the welding process between two parts often requires the assistance of a clamp. The clamp can tighten the parts, and then the two auto parts can be effectively welded by a welding machine. However, the existing welding clamps generally require bolts to fix the clamps, and then the auto parts are fixed by the clamps. Under this structure, the installation and disassembly of the auto parts will be extremely inconvenient, and the installation and disassembly time will be long, thereby reducing the welding production efficiency. In addition, when fixing the auto parts, micro-shifting is prone to occur, which will affect the subsequent welding quality of the auto parts. Based on this, we propose a new type of welding clamp. Utility Model Content

[0003] In view of the deficiencies of the prior art, the utility model provides a welding fixture, which can effectively solve the problems raised in the above-mentioned background technology after being improved.

[0004] The technical solution of the utility model is:

[0005] A welding fixture comprises a workbench, a lifting mechanism, a loading platform and an induction mechanism;

[0006] The lifting mechanism and the loading platform are respectively mounted on the workbench, and the moving end of the lifting mechanism is connected to a sensing mechanism;

[0007] The loading platform is provided with positioning pins and positioning columns, and the positioning pins and positioning columns are used to insert and position the automobile accessory plate;

[0008] The induction mechanism is provided with a welding ring and a fastening column, the welding ring is provided with a positioning welding hole, the fastening ring is arranged on one side of the welding ring, and the fastening ring is provided with a positioning hole for inserting a positioning pin;

[0009] The lifting mechanism drives the sensing mechanism to move toward the loading platform to fix the automobile accessory plate or to reset the sensing mechanism through the fastening column.

[0010] Furthermore, the sensing mechanism also includes a driving device, a first sensing device and a second sensing device. The driving device is fixedly connected to the welding ring through a connecting block. The first sensing device and the second sensing device are respectively installed on the outer side of the driving device. The first sensing device and the second sensing device are arranged at front and rear positions on the driving device. An insertion hole is provided on the welding ring. The insertion hole and the positioning welding hole are connected. The moving end of the driving device is connected to an insertion rod. The driving device drives the insertion rod to insert into the insertion hole and enter into the positioning welding hole.

[0011] Furthermore, the driving device adopts a driving cylinder, the push rod end of the driving device is fixedly connected to the extension rod, and the first sensing device and the second sensing device both adopt proximity switches; the first sensing device is used to sense the reset state of the push rod on the driving cylinder, and the second sensing device is used to sense the push rod push state on the driving cylinder.

[0012] Furthermore, the first sensing device is located at the left end of the second sensing device, and the first sensing device and the second sensing device are both fixed to the outside of the driving device through a fastening ring.

[0013] Furthermore, the insertion rod is a cylindrical structure, the insertion hole is a circular structure, and the outer diameter of the insertion rod is adapted to the inner diameter of the insertion hole, so that the insertion rod can slide in the insertion hole.

[0014] Furthermore, the insertion hole is arranged on the side of the welding ring, and the positioning welding hole is arranged in the inner middle part of the welding ring and is hollow up and down.

[0015] Furthermore, a fixing plate is fixedly connected to one side of the welding ring, a connecting plate is fixedly connected to one side of the fixing plate, and a fastening column is fixedly installed on the bottom surface of the connecting plate.

[0016] Furthermore, a positioning connection hole is also provided on the connection plate, and the positioning hole is arranged inside the fastening column.

[0017] Furthermore, the lifting mechanism includes a lifting cylinder, a slide rail and a mounting plate. The lifting cylinder and the slide rail are fixed to the workbench, the push rod end of the lifting cylinder is fixed to the mounting plate, the sliding end of the slide rail is slidably connected to the mounting plate, and the other end of the mounting plate is fixed to the fixed plate.

[0018] Furthermore, the loading platform also includes a mounting seat, which is fixedly connected to the workbench, and the mounting seat is respectively connected to a first mounting block and a second mounting block, the first mounting block is provided with a connecting column, the positioning pin is fixedly connected to the connecting column, and the positioning column is fixedly connected to the second mounting block.

[0019] The beneficial effects of the utility model are:

[0020] Compared with the prior art, the utility model is provided with a lifting mechanism, a loading platform and a sensing mechanism. After the automobile accessory plate is installed on the loading platform, the lifting mechanism can be used to drive the sensing mechanism to descend, and the automobile accessory plate can be fixed by the fastening column. At this time, the screws can be welded on the automobile accessory plate in the welding ring. After the welding is completed, it is convenient to drive the sensing mechanism to reset through the lifting mechanism, and the automobile accessory plate can be taken out. The utility model can quickly fix the automobile accessory plate, and can quickly loosen the automobile accessory plate, so that the automobile accessory plate can be quickly installed and disassembled, thereby greatly shortening the installation and disassembly time of the automobile accessory plate and improving the welding efficiency of the automobile accessory plate. Moreover, positioning pins and positioning columns are also provided on the loading platform, which can effectively position and install the automobile accessory plate, avoiding the situation that the automobile accessory plate is slightly moved and affects the subsequent welding quality; in addition, a sensing mechanism is also provided, and the sensing mechanism can perform sensing detection on the welded automobile accessories to avoid the situation of leaking welding and affecting the production efficiency, and change the shortcomings of manual naked eye observation, thereby greatly improving the production quality and reducing labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of the utility model before working;

[0022] Figure 2 It is a schematic diagram of the structure of the utility model when it is working;

[0023] Figure 3 It is a schematic diagram of the structure of the rear side when the utility model is working;

[0024] Figure 4 It is a structural schematic diagram of the loading platform of the utility model;

[0025] Figure 5 It is a structural schematic diagram of the sensing mechanism of the utility model;

[0026] Figure 6 It is a structural schematic diagram of another side of the sensing mechanism of the utility model;

[0027] Figure 7 It is a structural schematic diagram of the welding ring of the utility model.

[0028] In the figure, 1, driving device; 2, first sensing device; 3, second sensing device; 4, welding ring; 5, insertion hole; 6, positioning welding hole; 7, insertion rod; 8, fastening ring; 9, fixing plate; 10, connecting plate; 11, fastening column; 12, positioning connecting hole; 13, connecting block; 14, workbench; 15, lifting mechanism; 16, loading platform; 17, sensing mechanism; 18, positioning pin; 19, positioning column; 20, lifting cylinder; 21, slide rail; 22, mounting plate; 23, mounting seat; 24, first mounting block; 25, second mounting block; 26, connecting column; 27, automobile parts plate. DETAILED DESCRIPTION

[0029] The specific implementation of the utility model is further described below in conjunction with the accompanying drawings:

[0030] like Figure 1-7 As shown,

[0031] A welding fixture, comprising a workbench 14, a lifting mechanism 15, a loading platform 16 and a sensing mechanism 17; the lifting mechanism 15 and the loading platform 16 are respectively installed on the workbench 14, and the moving end of the lifting mechanism 15 is connected to the sensing mechanism 17; the loading platform 16 is provided with a positioning pin 18 and a positioning column 19, and the positioning pin 18 and the positioning column 19 are used to insert and position the automobile accessory plate 27; the sensing mechanism 17 is provided with a welding ring 4 and a fastening column 11, the welding ring 4 is provided with a positioning welding hole 6, the fastening ring 8 is arranged on one side of the welding ring 4, and the welding ring 4 is provided with a positioning hole for inserting the positioning pin 18 ; The lifting mechanism 15 drives the sensing mechanism 17 to move toward the loading platform 16, and fixes the automobile accessory plate 27 or drives the sensing mechanism 17 to reset through the fastening column 11; In this embodiment, by providing the lifting mechanism 15, the loading platform 16 and the sensing mechanism 17, after the automobile accessory plate 27 is installed on the loading platform 16, the lifting mechanism 15 can be used to drive the sensing mechanism 17 to descend, and the automobile accessory plate 27 can be fixed through the fastening column 11. At this time, the screws can be welded to the automobile accessory plate 27 in the welding ring 4. After the welding is completed, it is convenient to drive the sensing mechanism 17 to reset through the lifting mechanism 15, and the automobile accessory plate 27 can be taken out;

[0032] As a preferred embodiment; the induction mechanism 17 also includes a driving device 1, a first induction device 2 and a second induction device 3, the driving device 1 is fixedly connected to the welding ring 4 through a connecting block 13, the first induction device 2 and the second induction device 3 are respectively installed on the outside of the driving device 1, the first induction device 2 and the second induction device 3 are arranged at the front and rear positions on the driving device 1, the welding ring 4 is provided with an insertion hole 5, the insertion hole 5 and the positioning welding hole 6 are connected, the moving end of the driving device 1 is connected with an insertion rod 7, the driving device 1 drives the insertion rod 7 to insert into the insertion hole 5 into the positioning welding hole 6; in this embodiment, mainly through the first The second sensing device 3 senses the stroke of the push rod at the driving end of the driving device 1. When there is a screw inside the welding ring 4, the insertion rod 7 can touch the screw, indicating that there is no welding leak. If a welding leak occurs, the insertion rod 7 will continue to advance a certain distance. At this time, the second sensing device 3 will not light up and will also transmit a signal to the controller to start the beeper to tell the staff that a welding leak has occurred. Through the setting of the sensing mechanism 17, the sensing mechanism 17 can perform sensing detection on the welded automotive parts to avoid welding leaks that affect production efficiency, and change the shortcomings of manual naked eye observation, thereby greatly improving production quality and reducing labor costs.

[0033] As a preferred embodiment; the driving device 1 adopts a driving cylinder, the push rod end of the driving device 1 is fixedly connected to the extension rod 7, and the first sensing device 2 and the second sensing device 3 both adopt proximity switches; the first sensing device 2 is used to sense the reset state of the push rod on the driving cylinder, and the second sensing device 3 is used to sense the push rod push-out state of the driving cylinder; it can be understood that when the push rod is reset, the first sensing device 2 will light up, and when the push rod is pushed out and the extension rod 7 touches the screw, the second sensing device 3 will light up, so that the sensing effect of the sensing mechanism 17 is better and the probability of false sensing is lower.

[0034] As a preferred embodiment; the first sensing device 2 is located at the left end of the second sensing device 3, and the first sensing device 2 and the second sensing device 3 are both fixedly connected to the outside of the driving device 1 through a fastening ring 8; it can be understood that the first sensing device 2 and the second sensing device 3 mainly sense the stroke position of the push rod, and when the push rod is located at different positions, its working state is different, therefore, it is necessary to set the first sensing device 2 and the second sensing device 3 at different positions to ensure the sensing effect and accuracy.

[0035] As a preferred embodiment; the insertion rod 7 is a cylindrical structure, the insertion hole 5 is a circular structure, the outer diameter of the insertion rod 7 is adapted to the inner diameter of the insertion hole 5, so that the insertion rod 7 can slide in the insertion hole 5; the insertion rod 7 and the insertion hole 5 are adapted to each other, which has a positioning effect, ensuring the forward position of the insertion rod 7, and avoiding the situation where the insertion rod 7 is offset and does not touch the screw and causes misunderstanding; in addition, the adaptation setting means that the insertion rod 7 can just move inside the insertion hole 5.

[0036] As a preferred embodiment; the insertion hole 5 is arranged on the side of the welding ring 4, and the positioning welding hole 6 is arranged in the inner middle part of the welding ring 4, and is hollow in the upper and lower parts; the purpose of this structural design is: not only to make the structure more compact and save the space occupied by the sensing mechanism 17, but also to quickly detect the automobile welding workpiece (the insertion rod 7 is arranged close to the insertion hole 5, the insertion hole 5 is connected with the positioning welding hole 6, and the insertion rod 7 can quickly enter the interior of the positioning welding hole 6 without changing the working state of other components), which is conducive to improving production efficiency.

[0037] As a preferred embodiment; the welding ring 4 is an open ring structure and is fixed by bolts; it can be understood that the welding ring 4 with an open ring structure can fine-tune the inner diameter of the positioning welding hole 6 to make it better fit the welding head, and it is also convenient to connect the connecting block 13.

[0038] As a preferred embodiment; a fixing plate 9 is fixedly connected to one side of the welding ring 4, a connecting plate 10 is fixedly connected to one side of the fixing plate 9, and a fastening column 11 is fixedly installed on the bottom surface of the connecting plate 10; by providing the fastening column 11, the fastening column 11 mainly fixes the automobile accessory plate 27, which is convenient for welding screws inside the positioning welding hole 6.

[0039] As a preferred embodiment, the connecting plate 10 is also provided with a positioning connection hole 12, and the positioning hole is arranged inside the fastening column 11; by providing the positioning hole and the positioning connection hole 12, the positioning pin 18 can be inserted, which has the effect of positioning and fixing.

[0040] As a preferred embodiment; the lifting mechanism 15 includes a lifting cylinder 20, a slide rail 21 and a mounting plate 22, the lifting cylinder 20 and the slide rail 21 are fixedly connected to the workbench 14, the push rod end of the lifting cylinder 20 is fixedly connected to the mounting plate 22, the sliding end of the slide rail 21 is slidably connected to the mounting plate 22, and the other end of the mounting plate 22 is fixedly connected to the fixed plate 9; by adopting the lifting cylinder 20 and the slide rail 21 to drive the lifting, the shaking of the mounting plate 22 can be avoided (due to the need to connect several groups of sensing mechanisms 17), so that the lifting position of the sensing mechanism 17 is more precise; the slide rail 21 assists in sliding (bearing the supporting force), which can reduce the output of the lifting cylinder 20 force, and can be adapted to lifting cylinders 20 of different powers.

[0041] As a preferred embodiment; the loading platform 16 also includes a mounting seat 23, the mounting seat 23 is fixedly connected to the workbench 14, and the mounting seat 23 is respectively connected to a first mounting block 24 and a second mounting block 25, the first mounting block 24 is provided with a connecting column 26, the positioning pin 18 is fixedly connected to the connecting column 26, and the positioning column 19 is fixedly connected to the second mounting block 25; it can be understood that when the automobile accessory plate 27 is inserted into the positioning pin 18 and the positioning column 19, the connecting column 26 and the second mounting block 25 can abut the automobile accessory plate 27, so that when the fastening column 11 presses the automobile accessory plate 27, the fastening effect of the automobile accessory plate 27 is better.

[0042] In addition, the fixture itself is provided with four workstations, which can further improve the welding efficiency of the automobile accessory plate 27; four sets of induction mechanisms 17 and four loading platforms 16 are provided therein.

[0043] The working principle of the utility model is as follows: when working, first install the automobile accessory plate 27 on the stage 16 (wherein the positioning pin 18 and the positioning column 19 on the stage 16 will be plugged into the automobile accessory plate 27), then lower the sensing mechanism 17 through the lifting mechanism 15, and after it is in place, the fastening column 11 will also be plugged into the positioning pin 18, which has a positioning effect and can also effectively press the automobile accessory plate 27. Since the welding ring 4 is located on one side of the fastening column 11, and the bottom of the welding ring 4 is also the automobile accessory plate 27, at this time, the worker holds the welding head (the welding head is already equipped with screws) and inserts it into the positioning welding hole 6 to weld the screws on the automobile accessory plate 27; after the welding process is completed, the driving device 1 will work to push the insertion rod 7 along the insertion hole 5 and enter the positioning welding hole 6, If the screw is touched, the second sensing device 3 will light up and transmit the information to the controller. At this time, the controller will control the driving device 1 and the lifting mechanism 15 to move. The driving device 1 controls the insertion rod 7 to reset and the lifting mechanism 15 drives the sensing mechanism 17 to reset, and finally the welded automobile accessory plate 27 is taken out; on the contrary, when a welding leak occurs, the insertion rod 7 will continue to advance for a distance. Since the second sensing device 3 mainly senses the stroke position of the push rod, when the distance the push rod is pushed out is not the sensing distance, the second sensing device 3 will not light up and will also transmit the information to the control. The controller will control the buzzer to start and inform the staff of the welding leak. At the same time, the controller will not control the lifting mechanism 15 and the reset action of the driving device 1, and wait for the staff to handle it first;

[0044] It is worth mentioning that the stroke of the push rod set on the driving device 1 is the stroke when it does not touch the screw, while the stroke of the push rod sensed by the second sensing device 3 is the stroke when it touches the screw (the stroke refers to sensing the welding screw). When the screw is welded, the extension rod 7 will be blocked by the screw when it touches the screw, so that the stroke of the push rod will become the stroke of the push rod sensed by the second sensing device 3.

[0045] It should be pointed out that the main problems in the prior art are: the existing welding fixture generally requires bolts to fix the clamping plate, and then fix the auto parts through the clamping plate. Under this structure, the installation and removal of the auto parts will be extremely inconvenient, and the installation and removal time will be long, thereby reducing the welding production efficiency. In addition, when fixing the auto parts, micro-movement is prone to occur, which will affect the subsequent welding quality of the auto parts;

[0046] Therefore, through the improvements of the present application, the utility model can quickly fix the automobile accessory plate 27, and can quickly release the automobile accessory plate 27, so that the automobile accessory plate 27 can be quickly installed and disassembled, thereby greatly shortening the installation and disassembly time of the automobile accessory plate 27, and improving the welding efficiency of the automobile accessory plate 27. Moreover, positioning pins 18 and positioning columns 19 are also provided on the stage 16, which can effectively position and install the automobile accessory plate 27, and avoid the automobile accessory plate 27 from slightly moving and affecting the subsequent welding quality.

[0047] The above implementation modes are merely descriptions of the preferred implementation modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary engineering and technical personnel in the field shall fall within the protection scope determined by the claims of the present invention.

Claims

1. A welding fixture, characterized in that: It includes a workbench, a lifting mechanism, a loading platform and a sensing mechanism; The lifting mechanism and the loading platform are respectively mounted on the workbench, and the moving end of the lifting mechanism is connected to a sensing mechanism; The loading platform is provided with positioning pins and positioning columns, and the positioning pins and positioning columns are used to insert and position the automobile accessory plate; The induction mechanism is provided with a welding ring and a fastening column, the welding ring is provided with a positioning welding hole, the fastening column is arranged on one side of the welding ring, and the fastening column is provided with a positioning hole for inserting a positioning pin; The lifting mechanism drives the sensing mechanism to move toward the loading platform to fix the automobile accessory plate or to reset the sensing mechanism through the fastening column.

2. A welding fixture according to claim 1, characterized in that: The induction mechanism also includes a driving device, a first induction device and a second induction device. The driving device is fixedly connected to the welding ring through a connecting block. The first induction device and the second induction device are respectively installed on the outer side of the driving device. The first induction device and the second induction device are arranged at the front and rear positions on the driving device. An insertion hole is provided on the welding ring. The insertion hole and the positioning welding hole are connected. The moving end of the driving device is connected to an insertion rod. The driving device drives the insertion rod to insert into the insertion hole and enter into the positioning welding hole.

3. A welding fixture according to claim 2, characterized in that: The driving device adopts a driving cylinder, and the push rod end of the driving device is fixedly connected to the extension rod. The first sensing device and the second sensing device both adopt proximity switches; the first sensing device is used to sense the reset state of the push rod on the driving cylinder, and the second sensing device is used to sense the push rod push state on the driving cylinder.

4. A welding fixture according to claim 3, characterized in that: The first sensing device is located at the left end of the second sensing device, and both the first sensing device and the second sensing device are fixed to the outside of the driving device through a fastening ring.

5. A welding fixture according to claim 4, characterized in that: The insertion rod is a cylindrical structure, the insertion hole is a circular structure, and the outer diameter of the insertion rod is adapted to the inner diameter of the insertion hole so that the insertion rod can slide in the insertion hole.

6. A welding fixture according to claim 5, characterized in that: The insertion hole is arranged on the side of the welding ring, and the positioning welding hole is arranged in the inner middle part of the welding ring and is hollow up and down.

7. A welding fixture according to claim 6, characterized in that: A fixing plate is fixedly connected to one side of the welding ring, a connecting plate is fixedly connected to one side of the fixing plate, and a fastening column is fixedly installed on the bottom surface of the connecting plate.

8. A welding fixture according to claim 7, characterized in that: The connection plate is also provided with a positioning connection hole, and the positioning hole is arranged inside the fastening column.

9. A welding fixture according to claim 8, characterized in that: The lifting mechanism includes a lifting cylinder, a slide rail and a mounting plate. The lifting cylinder and the slide rail are fixed to the workbench, the push rod end of the lifting cylinder is fixed to the mounting plate, the sliding end of the slide rail is slidably connected to the mounting plate, and the other end of the mounting plate is fixed to the fixed plate.

10. A welding fixture according to claim 9, characterized in that: The stage also includes a mounting seat, which is fixedly connected to the workbench, and the mounting seat is respectively connected to a first mounting block and a second mounting block, the first mounting block is provided with a connecting column, the positioning pin is fixedly connected to the connecting column, and the positioning column is fixedly connected to the second mounting block.

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