Universal welding clamp for door plate

Abstract

The utility model relates to a universal welding clamp for a door plate. The universal welding clamp comprises a rack; the fixed positioning device is detachably arranged at one end of the rack and used for positioning one end of the door bottom plate; the movable positioning device is detachably arranged at the other end of the rack, is opposite to the fixed positioning device and is used for pressing the door bottom plate on the fixed positioning device from the other end of the door bottom plate; the at least one middle rotary pressing device is detachably arranged on the rack and is used for pressing the middle reinforcing rib on the door bottom plate; the end pressing devices are arranged on the fixed positioning device and the movable positioning device and used for pressing the two ends of the middle reinforcing rib to the two ends of the door bottom plate. The side positioning blocks are detachably arranged on any one or more of the fixed positioning device, the middle rotary pressing device and the movable positioning device and used for positioning the side face position of the door bottom plate. According to the universal welding clamp for the door plate, the door plate can be conveniently installed through the middle rotating pressing device, the clamping time is shortened, the clamping efficiency is improved, the door plate can be rapidly adjusted, and the universality is good.

Description

Technical Field

[0001] The utility model relates to a welding fixture, in particular to a universal welding fixture for door panels. Background Art

[0002] like Figure 12 As shown, the door panel is welded together by a door bottom plate 91, a top inner frame 92, a bottom inner frame 93, and a middle reinforcement rib 94. Side folds are provided on both sides of the door bottom plate 91, and the side folds are bent into an L shape. The top inner frame 92 and the bottom inner frame 93 are located at the two ends of the door bottom plate 91, respectively, and are located inside the side folds. First folds 941 are symmetrically provided on both sides of the middle reinforcement rib 94. The middle reinforcement rib 94 is located in the middle of the door bottom plate 91, and its two ends respectively abut against the top inner frame 92 and the bottom inner frame 93. The first folds 941 are used for welding to the door bottom plate 91. Currently, multiple side positioning blocks 5 are mainly installed on a welding platform according to the door panel. The door bottom plate 91 is then placed into the side positioning blocks 5. The various parts are clamped with toggle clamps before welding. Due to the long length of the middle reinforcement rib 94, the middle portion needs to be pressed against the door bottom plate 91. At least one gantry is provided above the door bottom plate 91, and the gantry is fixed to the welding platform. The toggle clamp is then installed on the gantry. When the door base plate 91 is installed, it needs to pass through the gantry, which makes it inconvenient to install the door panel and takes too long to clamp the door panel, affecting the overall welding efficiency. Moreover, when the size of the door panel is changed, the various positioning blocks and gantry need to be remade, which has poor versatility. Utility Model Content

[0003] In order to solve the above problems of long clamping time and poor versatility, the utility model provides a universal door panel welding fixture, the specific technical solution is as follows:

[0004] A universal welding fixture for door panels, comprising: a frame; a fixed positioning device, detachably provided at one end of the frame, for positioning one end of a door bottom panel; a movable positioning device, detachably provided at the other end of the frame, and arranged opposite to the fixed positioning device, for pressing the door bottom panel onto the fixed positioning device from the other end of the door bottom panel; at least one intermediate rotating pressing device, detachably provided on the frame, for pressing an intermediate reinforcing rib onto the door bottom panel; an end pressing device, provided on the fixed positioning device and the movable positioning device, for pressing both ends of the intermediate reinforcing rib onto both ends of the door bottom panel; and a plurality of side positioning blocks, detachably provided on any one or more of the fixed positioning device, the intermediate rotating pressing device and the movable positioning device, for positioning the side position of the door bottom panel.

[0005] Preferably, the fixed positioning device includes: a fixed base plate, which is used to be installed on the frame, and the side positioning block is arranged at one end of the fixed base plate; a fixed clamping cylinder, which is arranged at the other end of the fixed base plate and is opposite to the side positioning block; and a fixed stop block, which is arranged on one side of the fixed base plate and is located between the side positioning block and the fixed clamping cylinder, and is used to position one end of the door bottom plate.

[0006] Preferably, the movable positioning device includes: a movable bottom plate for being installed on the frame, the side positioning block being arranged at one end of the movable bottom plate; a movable clamping cylinder being arranged at the other end of the movable bottom plate and being arranged opposite to the side positioning block; and an end clamping cylinder being arranged at one side of the movable bottom plate and being located between the side positioning block and the movable clamping cylinder, for positioning and clamping the other end of the door bottom plate.

[0007] Furthermore, it also includes: an end pressure plate, which is arranged on the end pressing cylinder; and an end strong magnet, which is arranged on the end pressure plate.

[0008] Preferably, the intermediate rotating and pressing device includes: an intermediate bottom plate, which is used to be installed on the frame, and the side positioning block is provided at one end of the intermediate bottom plate; a rotating device, which is provided at one end of the intermediate bottom plate; and a pressing device, which is provided on the rotating device and is used to press the intermediate reinforcement rib onto the door bottom plate.

[0009] Furthermore, the rotating device includes: a rotating cylinder, which is rotatably arranged on the middle base plate; a rotating joint, which is rotatably arranged on the piston rod of the rotating cylinder; a rotating seat, which is rotatably arranged on the middle base plate and connected to the rotating joint; and a rotating rod, which is arranged on the rotating seat and connected to the pressing device.

[0010] Wherein, the pressing device includes: a pressing cylinder, which is arranged on the rotating device; and a pressing block, which is arranged on the piston rod of the pressing cylinder.

[0011] Preferably, the end clamping device includes: an end base; a clamping plate, one end of which is rotatably arranged on the end base; an end pressure block, symmetrically provided on both sides of the other end of the clamping plate, for pressing the first folding edge onto the door bottom plate; and a rotary clamping cylinder, provided on one side of the clamping plate, for clamping the clamping plate.

[0012] Among them, it also includes: an end support seat, which is arranged on one side of the end base and is used to support the pressing plate.

[0013] Preferably, the rack comprises: a frame; and a mounting base plate symmetrically arranged on both sides of the top of the frame, and having a plurality of connection holes arranged in an array.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The utility model provides a universal door panel welding fixture which can be conveniently installed into the door panel through an intermediate rotating pressing device, thereby reducing the clamping time, improving the clamping efficiency, and enabling rapid adjustment of the door panel, with good versatility. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of this application;

[0017] Figure 2 It is a schematic diagram of the structure of the present application equipped with a door panel;

[0018] Figure 3 yes Figure 2 A top view of

[0019] Figure 4 It is a structural diagram of the rack;

[0020] Figure 5 It is a structural schematic diagram of a fixed positioning device;

[0021] Figure 6 is a top view of the fixed positioning device;

[0022] Figure 7 It is a structural diagram of an active positioning device;

[0023] Figure 8 is a top view of the movable positioning device;

[0024] Figure 9 It is a structural schematic diagram of the end clamping device;

[0025] Figure 10 It is a structural diagram of the intermediate rotating pressing device;

[0026] Figure 11 It is a schematic diagram of the assembly of the rotating device and the pressing device;

[0027] Figure 12 It is a structural diagram of the door panel. DETAILED DESCRIPTION

[0028] The present invention will now be further described with reference to the accompanying drawings.

[0029] like Figures 1 to 11As shown, a universal welding fixture for door panels includes a frame 1, a fixed positioning device 2, a movable positioning device 3, an intermediate rotating pressing device 4, an end pressing device 7 and a side positioning block 5; the fixed positioning device 2 is detachably mounted on one end of the frame 1 for positioning one end of the door bottom plate 91; the movable positioning device 3 is detachably mounted on the other end of the frame 1 and is arranged opposite to the fixed positioning device 2, for pressing the door bottom plate 91 onto the fixed positioning device 2 from the other end of the door bottom plate 91; two intermediate rotating pressing devices 4 are provided, which are detachably mounted on the frame 1 and are located between the fixed positioning device 2 and the movable positioning device 3, for pressing the intermediate reinforcing rib 94 onto the door bottom plate 91; the end pressing devices 7 are installed on the fixed positioning device 2 and the movable positioning device 3, for pressing the two ends of the intermediate reinforcing rib 94 onto the two ends of the door bottom plate 91; four side positioning blocks 5 are detachably mounted on the fixed positioning device 2, the intermediate rotating pressing device 4 and the movable positioning device 3, for positioning the side position of the door bottom plate 91.

[0030] like Figure 4 As shown, the rack 1 includes a frame 11 and a mounting base 12. The frame 11 is a rectangular frame. The mounting base 12 is fixed to the top of the frame 11 and is symmetrically arranged. A plurality of connecting holes 13 are arranged in an array along the length direction on the mounting base 12. The connecting holes 13 are threaded holes. The connecting holes 13 are convenient for installing the fixed positioning device 2, the movable positioning device 3 and the intermediate rotating clamping device 4, which is convenient for adjusting the welding fixture according to different door panels, thereby improving versatility.

[0031] The side positioning block 5 is provided with a side magnet 52 , which is used to attract the side surface of the door bottom plate 91 to facilitate positioning of the door bottom plate 91 .

[0032] like Figure 5 and Figure 6As shown, the fixed positioning device 2 includes a fixed base plate 21, a fixed pressing cylinder 22, and a fixed stopper 23. Two first fixing grooves 212 are provided at one end of the fixed base plate 21, and two first screw holes 215 are provided at the other end. The first fixing grooves 212 are V-shaped grooves and are positioned by connecting screws 6, which facilitates installation. The first screw holes 215 are connected to the connecting holes 13 by connecting screws 6 to achieve the fixation of the fixed base plate 21. A plurality of first positioning grooves 211 are provided in an array at one end of the fixed base plate 21, and the side positioning blocks 5 are installed in the first positioning grooves 211. The plurality of first positioning grooves 211 arranged in an array facilitate the adjustment of the position of the side positioning blocks 5 according to door panels of different sizes. The fixed clamping cylinder 22 is a dual-axis cylinder, fixed to the other end of the fixed base plate 21 and positioned opposite the side positioning block 5. Two fixed stops 23 are provided, fixed to one side of the fixed base plate 21 by screws and located between the side positioning block 5 and the fixed clamping cylinder 22. They are used to position one end of the door bottom plate 91. A first magnet 24 is also mounted on the fixed stop 23, which is used to attract the top inner frame 92, preventing it from moving freely and improving clamping efficiency.

[0033] like Figure 7 and Figure 8 As shown, the movable positioning device 3 includes a movable base plate 31, a movable pressing cylinder 33, an end pressing cylinder 32, and an end pressing plate 321. Two second fixing grooves 312 are provided at one end of the movable base plate 31, and two second screw holes 315 are provided at the other end. The second fixing grooves 312 are V-shaped grooves and are positioned by connecting screws 6, which facilitates installation. The second screw holes 315 are connected to the connecting holes 13 via connecting screws 6 to secure the movable base plate 31. A plurality of second positioning grooves 311 are provided in an array at one end of the movable base plate 31, and the side positioning blocks 5 are installed in the second positioning grooves 311. The plurality of second positioning grooves 311 arranged in an array facilitate adjustment of the position of the side positioning blocks 5 according to door panels of different sizes. The movable pressing cylinder 33 is a double-axis cylinder, which is fixed to the other end of the movable base plate 31 and is arranged opposite to the side positioning block 5; there are two end pressing cylinders 32, which are symmetrically installed on the movable base plate 31 and are located between the side positioning block 5 and the movable pressing cylinder 33. The movable pressing cylinder 33 is a double-axis cylinder, and the end of the piston rod of the movable pressing cylinder 33 is equipped with an end pressure plate 321, and the end pressure plate 321 is also equipped with a second magnet 322. The second magnet 322 is used to adsorb the bottom inner frame 93 to prevent the bottom inner frame 93 from moving freely, thereby improving the clamping efficiency.

[0034] like Figure 10 and Figure 11As shown, the intermediate rotating and pressing device 4 includes an intermediate base plate 41, a rotating device 43, and a pressing device 44. A third fixing groove 411 is provided at one end of the intermediate base plate 41, and two third screw holes 415 are provided at the other end. The third fixing groove 411 is a V-shaped groove and is positioned by connecting screws 6, facilitating installation. The third screw holes 415 are connected to the connecting holes 13 via the connecting screws 6 to secure the intermediate base plate 41. A plurality of third positioning grooves 412 are provided in an array at one end of the intermediate base plate 41. The third positioning grooves 412 are used to mount the side positioning blocks 5, facilitating adjustment of the position of the side positioning blocks 5 according to door panels of different sizes. The rotating device 43 is mounted on a section of the intermediate base plate 41 and is connected to the pressing device 44 to press the intermediate reinforcing rib 94 against the door base plate 91. The rotating device 43 includes a rotating cylinder 431, a rotating joint 433, a rotating seat 436, and a rotating rod 437. One end of the rotating cylinder 431 is rotatably mounted on the connecting base 42 via a connecting seat 432. The connecting base 42 is mounted on the intermediate base plate 41. The rotating joint 433 is mounted on the piston rod of the rotating cylinder 431. The rotating joint 433 is connected to the rotating plate 433 via a connecting shaft 434. The rotating plate 433 is connected to the rotating seat 436. The rotating seat 436 is rotatably mounted on the intermediate base plate 41 via a rotating shaft 435 and a bearing, and is connected to the rotating joint 433. One end of the rotating rod 437 is fixed to the rotating seat 436, and the other end is connected to the pressing device 44. The pressing device 44 includes a pressing cylinder 441 and a pressing block 442. The pressing block 442 is fixed to the piston rod of the pressing cylinder 441. The pressing block 442 matches the middle reinforcing rib 94 and is used to press the first folded edge 941 of the middle reinforcing rib 94 against the door bottom plate 91. When the piston rod of the rotating cylinder 431 is extended, it drives the rotating seat 436 and the rotating rod 437 to rotate 90 degrees, so that the pressing device 44 rotates above the middle reinforcing rib 94. When the piston rod of the rotating cylinder 431 is retracted, it drives the rotating seat 436 and the rotating rod 437 back, so that the pressing device 44 rotates to one side of the frame 1, leaving the upper part of the frame 1 unobstructed, thereby facilitating the installation of the door bottom plate 91 and the middle reinforcing rib 94.

[0035] like Figure 9As shown, the end clamping device 7 includes an end base 71, a clamping plate 72, an end pressure block 74, a rotary clamping cylinder 76 and an end support seat 75. The end base 71 is mounted on the fixed bottom plate 21 and the movable bottom plate 31. One end of the clamping plate 72 is rotatably mounted on the top of the end base 71. The other end of the clamping plate 72 is symmetrically mounted with end pressure blocks 74 on both sides. The end pressure blocks 74 are used to press the first folding edge 941 onto the door bottom plate 91. The rotary clamping cylinder 76 is mounted on the fixed bottom plate 21 and the movable bottom plate 31 and is located on one side of the clamping plate 72 for clamping the clamping plate 72. The end support seat 75 is mounted on the fixed bottom plate 21 and the movable bottom plate 31 and is located in the middle of the clamping plate 72 for supporting the clamping plate 72 to prevent the rotary clamping cylinder 76 from deforming the door bottom plate 91 through the clamping plate 72 and the end pressure block 74. A handle 73 is provided on the pressing plate 72 , and the handle 73 facilitates the rotation of the pressing plate 72 .

[0036] During operation, the piston rods of the rotating cylinder 431, the end pressing cylinder 32, the fixed pressing cylinder 22, the movable pressing cylinder 33 and the pressing cylinder 441 are all in a retracted state, and then the door bottom plate 91 is placed on the top of the frame 1, and the two ends of the door bottom plate 91 are respectively against the fixed bottom plate 21 and the movable bottom plate 31, the middle part of the door bottom plate 91 is against the middle bottom plate 41, and one side of the door bottom plate 91 is against the side positioning block 5, and the top of the door bottom plate 91 is against the fixed stopper 23, and then the middle reinforcement rib 94, the top inner frame 92 and the bottom inner frame 93 are installed, and then each cylinder is started, the fixed pressing cylinder 22 and the movable pressing cylinder 33 press the door bottom plate 91 against the side positioning block 5, and the end pressing cylinder 32 is pressed. The door bottom panel 91 is pressed against the fixed block 23. The bottom inner frame 93 is positioned by adsorbing the second magnet 322 onto the end pressure plate 321. The top inner frame 92 is positioned by adsorbing the first magnet 24 onto the fixed block 23. The cylinder 431 is rotated to rotate the downward pressure cylinder 441 to directly above the middle reinforcing rib 94. The downward pressure cylinder 441 then drives the downward pressure block 442 to press the middle reinforcing rib 94 against the door bottom panel 91. The pressure plate 72 is rotated to cause the end pressure block 74 to abut against the first folded edge 941. The rotation of the pressure cylinder 76 is activated and, through the pressure plate 72, presses the first folded edge 941 against the door bottom panel 91. This completes the positioning of all the door panel components, and welding can then proceed. After welding is complete, the piston rods of each cylinder are retracted, and the door panel is removed.

[0037] The technical principles of the present invention have been described above with reference to specific embodiments. These descriptions are intended solely to illustrate the principles of the present invention and should not be construed in any way as limiting the scope of protection of the present invention. Based on the explanations herein, those skilled in the art will be able to devise other specific embodiments of the present invention without inventive effort, and such embodiments will fall within the scope of protection of the claims of the present invention.

Claims

1. A universal door panel welding fixture, characterized in that: include: Rack (1); A fixed positioning device (2) is detachably arranged at one end of the frame (1) and is used to position one end of the door bottom plate (91); a movable positioning device (3), which is detachably arranged at the other end of the frame (1) and is arranged opposite to the fixed positioning device (2), and is used to press the door bottom plate (91) onto the fixed positioning device (2) from the other end of the door bottom plate (91); At least one intermediate rotating pressing device (4) is detachably arranged on the frame (1) and is used to press the intermediate reinforcing rib (94) onto the door bottom plate (91); an end clamping device (7), provided on the fixed positioning device (2) and the movable positioning device (3), and used for clamping the two ends of the middle reinforcing rib (94) against the two ends of the door bottom plate (91); and A plurality of side positioning blocks (5) are detachably arranged on any one or more of the fixed positioning device (2), the intermediate rotating pressing device (4) and the movable positioning device (3) for positioning the side position of the door bottom plate (91).

2. A universal door panel welding fixture according to claim 1, characterized in that: The fixing and positioning device (2) comprises: A fixed bottom plate (21) is used for being mounted on the frame (1), and the side positioning block (5) is arranged at one end of the fixed bottom plate (21); A fixed pressing cylinder (22) is arranged at the other end of the fixed bottom plate (21) and is arranged opposite to the side positioning block (5); and A fixed stopper (23) is provided on one side of the fixed bottom plate (21) and is located between the side positioning block (5) and the fixed pressing cylinder (22) and is used to position one end of the door bottom plate (91).

3. A universal door panel welding fixture according to claim 1, characterized in that: The movable positioning device (3) comprises: A movable bottom plate (31) is used for being mounted on the frame (1), and the side positioning block (5) is arranged at one end of the movable bottom plate (31); A movable pressing cylinder (33) is arranged at the other end of the movable bottom plate (31) and is arranged opposite to the side positioning block (5); and The end clamping cylinder (32) is arranged on one side of the movable bottom plate (31) and is located between the side positioning block (5) and the movable clamping cylinder (33), and is used to position and clamp the other end of the door bottom plate (91).

4. A universal door panel welding fixture according to claim 3, characterized in that: Also includes: An end pressure plate (321) is provided on the end pressing cylinder (32); as well as The end strong magnet (322) is arranged on the end pressure plate (321).

5. The universal door panel welding fixture according to claim 1, characterized in that: The intermediate rotating pressing device (4) comprises: An intermediate bottom plate (41) is used for being mounted on the frame (1), and the side positioning block (5) is arranged at one end of the intermediate bottom plate (41); A rotating device (43) is arranged at one end of the middle bottom plate (41); The pressing device (44) is arranged on the rotating device (43) and is used to press the middle reinforcing rib (94) against the door bottom plate (91).

6. A universal door panel welding fixture according to claim 5, characterized in that: The rotating device (43) comprises: A rotating cylinder (431) rotatably disposed on the middle bottom plate (41); A rotating joint (433) rotatably mounted on the piston rod of the rotating cylinder (431); a rotating seat (436) rotatably disposed on the middle bottom plate (41) and connected to the rotating joint (433); and The rotating rod (437) is disposed on the rotating seat (436) and is connected to the pressing device (44).

7. The universal door panel welding fixture according to claim 5, characterized in that: The pressing device (44) comprises: A downward pressure cylinder (441) is provided on the rotating device (43); and The pressing block (442) is arranged on the piston rod of the pressing cylinder (441).

8. The universal door panel welding fixture according to claim 1, characterized in that: The end clamping device (7) comprises: End base (71); A pressing plate (72), one end of which is rotatably mounted on the end base (71); An end pressing block (74) is symmetrically provided on both sides of the other end of the pressing plate (72) and is used to press the first folded edge (941) onto the door bottom plate (91); and A rotary pressing cylinder (76) is provided on one side of the pressing plate (72) and is used for pressing the pressing plate (72).

9. A universal door panel welding fixture according to claim 8, characterized in that: Also includes: An end support seat (75) is arranged on one side of the end base (71) and is used to support the pressing plate (72).

10. The universal door panel welding fixture according to claim 1, characterized in that: The frame (1) comprises: Frame (11); The mounting base plate (12) is symmetrically arranged on both sides of the top of the frame (11), and a plurality of connection holes (13) are arranged in an array.

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