CN115156764A - Be used for truck crossbeam weld forming fixed equipment - Google Patents

Abstract

The invention discloses a welding and forming fixing device for a truck beam, which comprises a welding workpiece and two adjusting frames. The top surfaces of the two adjusting frames are provided with clamping mechanisms, and the clamping mechanisms comprise clamping plates. A connecting arm is fixedly connected between the two sides of the middle part of the upper end of the adjusting frame and the lower part of the middle part of one side of the clamping plate, and a telescopic mechanism is fixedly connected between the two adjusting frames, and the telescopic mechanism includes a plurality of telescopic mechanisms. assembly and a plurality of second rotating shafts, the telescopic assembly includes a first rotating shaft and two rotating arms. The pull rod of the invention controls the length of the telescopic mechanism to the distance between the two adjustment frames, fixes the two longitudinal beams on the two clamping plates, and then places the cross beam between the two longitudinal beams, and then adjusts the position of the pull rod to fix the cross beam, Adjusting the different lengths of the telescopic machine realizes the processing of beams of different specifications, and reduces the cost of using tools to weld the beams.

Description

A welding and forming fixing device for truck beams

technical field

The invention relates to the technical field of truck manufacturing, in particular to a welding, forming and fixing device for truck beams.

Background technique

The frame is generally composed of longitudinal beams and cross beams. There are two main forms: side beam type and middle beam type. The beam is used to ensure the torsional rigidity of the frame and bear the longitudinal load, and can also support the main components on the truck. The structural feature of the side beam frame is that it is convenient to install the cab, carriage and some special equipment and arrange other assemblies, which is conducive to the modification of modified vehicles and the development of multi-variety vehicles. The cross member is not only used to ensure the torsional stiffness of the frame and bear the longitudinal load, but also can support the main components on the car. Usually a truck has five to six beams, sometimes more. The structural feature of the side beam frame is that it is easy to install the cab, carriage and some special equipment and arrange other assemblies, which is conducive to the modification of modified vehicles and the development of various types of vehicles, so it is widely used in trucks and most special vehicles. .

In the prior art, such as the Chinese Patent No.: CN112404766A "An Automatic Welding Device for Vehicle Thermoforming Floor Cross Beams", it includes a support base plate and a support plate arranged on the support base plate and distributed symmetrically, above the support plate There is an auxiliary moving mechanism for assisting the movement of the floor. A welding torch head is arranged above the auxiliary moving mechanism. The welding torch head is connected to the welding body that controls it to perform welding. The welding body is connected to drive it to move in three directions perpendicular to each other. mechanism. The invention can quickly and accurately locate the floor by setting the space moving mechanism and auxiliary moving, and then accurately weld each point of the floor through the space moving mechanism, which is fast and convenient, and has a high degree of automation; The lifting support plate can be reset, and there is no need to manually control the movement of the first drive motor, which is convenient and has a high degree of automation.

However, in the prior art, trucks of different sizes have different beam specifications. When producing truck beams, multiple sets of fixtures corresponding to the beam specifications must be produced for installation and welding. Multiple sets of fixtures not only increase production costs, but also occupy There is a lot of space, and at the same time, when the welding process is performed outdoors, due to the large size and complex structure of the fixture, it is difficult to move it outdoors, which greatly limits the use scene of the fixture.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a welding and forming fixing device for truck beams, in order to solve the above-mentioned background technology, it is proposed that the specifications of the beams corresponding to trucks of different sizes are also different, and multiple sets of fixing devices corresponding to the beam specifications should be produced when producing the beams of the trucks. For installation and welding, multiple sets of fixing devices not only increase the production cost, but also take up a lot of space. At the same time, when the welding process is carried out outdoors, due to the large size and complex structure of the fixing device, it is difficult to move it outdoors, which greatly restricts The problem of the usage scenario of the fixture is solved.

In order to achieve the above purpose, the present invention provides the following technical solutions: a welding and forming fixing device for a truck beam, comprising a welding workpiece and two adjusting frames, the top surfaces of the two adjusting frames are provided with clamping mechanisms, the The clamping mechanism includes a clamping plate, connecting arms are fixedly connected between two sides of the middle part of the upper end of the adjusting frame and the lower part of the middle part of one side of the clamping plate, and a telescopic mechanism is fixedly connected between the two adjusting frames;

The telescopic mechanism includes a plurality of telescopic assemblies and a plurality of second rotating shafts, the telescopic assembly includes a first rotating shaft and two rotating arms, and two ends of the first rotating shaft are respectively connected with the center positions of the two rotating arms. Rotational connection, both ends of the rotating arm are provided with rotating holes, the rotating arms of the two telescopic mechanisms are rotatably connected through the second rotating shaft at the corresponding position, and the sides of the two adjustment frames are provided with A rectangular chute, the inner side walls of the two adjustment frames are fixedly connected with positioning blocks, the interior of the rectangular chute is slidably clamped with a pull rod, and a sliding rod is fixedly connected between the pull rod and the adjacent rotating arm The positioning block is fixedly connected with the adjacent rotating arm.

Preferably, two traction mechanisms are arranged between the two clamping plates, the traction mechanisms include two lifting rods, and a shrinking outer tube is fixedly connected to the adjacent sides of the lifting rods, and the inner part of the shrinking outer tube is A retractable inner rod is slidably connected, and a fixed rod is fixedly connected between the two retractable inner rods.

Preferably, an L-shaped sliding groove is opened above the middle part of one side of the clamping plate, and an L-shaped sliding block is fixedly connected to the upper part of the middle part of one side of the lifting rod, and the L-shaped sliding block and the L-shaped sliding groove are slidingly engaged. The outer side of the lift rod is fixedly connected with a handle.

Preferably, a fixing mechanism is provided between the two telescopic fixing rods, and the fixing mechanism includes a first fixing component and a second fixing component.

Preferably, the first fixing component includes a first fixing plate, the second fixing component includes a second fixing plate, and both the first fixing plate and the second fixing plate are fixedly connected with the fixing rod.

Preferably, an L-shaped rod is fixedly connected above the middle part of one side of the first fixing plate, and an opening is opened above the middle part of one side of the second fixing plate.

Preferably, a baffle is fixedly connected above the middle part of one side of the second fixing plate, an arc-shaped sliding block is slidably connected inside the baffle, and the arc-shaped sliding block is fixedly connected with the inner wall of the opening of the second fixing plate There are springs.

Preferably, the length of the shrinking outer tube is equal to the length of the shrinking inner rod, the inner diameter of the shrinking outer tube is 1.2 times the outer diameter of the shrinking inner rod, and the adjacent ends of the shrinking outer tube and the shrinking inner rod are fixedly connected A limiting piece, the inner diameter of the shrinking outer tube is equal to the outer diameter of the limiting piece.

Preferably, the surface of the spring is coated with a rust inhibitor, and the L-shaped chute and the interior of the rectangular chute are coated with lubricant.

Compared with the prior art, the beneficial effects of the present invention are:

1. In the present invention, the length of the telescopic mechanism is controlled by the pull rod to adjust the distance between the two adjustment frames, the two longitudinal beams are fixed on the two clamping plates, and then the beam is placed between the two longitudinal beams, and then the length of the pull rod is adjusted. The position of the beam is fixed, and the different lengths of the telescopic machine are adjusted to realize the processing of beams of different specifications, and the welding work of the beam can be carried out by reducing the use cost of tools.

2. In the present invention, when the equipment needs to be moved, the adjustment frames on both sides are merged with each other by pulling the pull rod, and the shrinking inner rod slides toward the inside of the shrinking outer tube, which reduces the length of the traction mechanism and reduces the volume of the entire equipment. Easy to move.

3. In the present invention, the traction mechanism is slid to both sides of the beam by pulling the handle, the L-shaped rod is squeezed to the arc-shaped slider and the spring is compressed, and the arc-shaped slider and the L-shaped rod are clamped to each other, which will lift the slider upward. The handle, the arc-shaped slider slides to the upper side of the L-shaped rod, the arc-shaped slider and the L-shaped rod are no longer clamped, and the L-shaped rod is disengaged from the opening at this time, realizing the fixation of the beam.

Description of drawings

1 is a schematic diagram of the overall structure of a welding and forming fixing device for a truck beam according to the present invention;

FIG. 2 is a schematic structural diagram of a telescopic mechanism for welding and forming a fixing device for a truck beam according to the present invention;

3 is a schematic structural diagram of a telescopic assembly used for a truck beam welding and forming fixing device according to the present invention;

Fig. 4 is a kind of traction mechanism of the present invention which is used for the welding and forming fixing equipment of the truck beam;

5 is an exploded effect diagram of a clamping mechanism and a traction mechanism for a welding and forming fixing device for a truck beam according to the present invention;

6 is a cross-sectional view of the connection relationship between the shrinking outer tube and the shrinking inner rod used for the welding and forming fixing equipment of the truck beam according to the present invention;

7 is a schematic cross-sectional view of a fixing mechanism for a welding and forming fixing device for a truck beam according to the present invention;

FIG. 8 is a schematic diagram of the internal structure of a fixing mechanism for a welding and forming fixing device for a truck beam according to the present invention.

In the picture:

1. Adjusting frame; 2. Clamping mechanism; 21. Clamping plate; 22. Connecting arm; 23. L-shaped chute; 3. Telescopic mechanism; 31. Telescopic assembly; ; 32, the second rotating shaft; 33, the positioning block; 34, the sliding block; 35, the rectangular chute; 36, the pull rod; 4, the traction mechanism; 41, the lifting rod; 42, the L-shaped slider; , shrinking outer tube; 45, shrinking inner rod; 46, fixing rod; 5, welding workpiece; 6, fixing mechanism; 61, first fixing component; 611, first fixing plate; 612, L-shaped rod; 62, second Fixing assembly; 621, second fixing plate; 622, arc slider; 623, spring; 624, baffle.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described implementation regulations are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

Referring to Figures 1-8: a welding and forming fixing device for truck beams, including a welding workpiece 5 and two adjusting frames 1, the top surfaces of the two adjusting frames 1 are provided with a clamping mechanism 2, and the clamping mechanism 2 Including a clamping plate 21, connecting arms 22 are fixedly connected between the two sides of the middle part of the upper end of the adjusting frame 1 and the lower part of the middle part of one side of the clamping plate 21, and a telescopic mechanism 3 is fixedly connected between the two adjusting frames 1. The mechanism 3 includes a plurality of telescopic assemblies 31 and a plurality of second rotating shafts 32. The telescopic assembly 31 includes a first rotating shaft 312 and two rotating arms 311. The two ends of the first rotating shaft 312 are respectively connected with the center of the two rotating arms 311. Position rotation connection, both ends of the rotation arm 311 are provided with rotation holes, the rotation arms 311 of the two telescopic mechanisms 3 are connected by rotation through the second rotation shaft 32 at the corresponding position, and the sides of the two adjustment frames 1 are provided with The rectangular chute 35, the inner side walls of the two adjustment frames 1 are fixedly connected with the positioning block 33, the interior of the rectangular chute 35 is slidably clamped with a pull rod 36, and the pull rod 36 and the adjacent rotating arm 311 are fixedly connected with a The sliding block 34, the positioning block 33 and the adjacent rotating arm 311 are all fixedly connected; when the welding workpiece 5 needs to be fixed, first slide the pull rod 36 from the other end of the rectangular chute 35 to the positioning block 33, and the pull rod 36 The sliding block 34 is driven to move, and the rotating arm 311 connected with the sliding block 34 moves accordingly. Since the two staggered rotating arms 311 are rotatably connected by the first rotating shaft 312, the outer ends of the two rotating arms 311 are close to each other, and the entire The length of the telescopic assembly 31 becomes longer, and the two telescopic assemblies 31 are also rotatably connected through the second rotating shaft 32, so the movements of the telescopic assemblies 31 of the entire telescopic mechanism 3 are interrelated, so that the length of the entire telescopic mechanism 3 is also long, the distance between the two adjustment frames 1 also increases accordingly, and the two longitudinal beams are fixed on the clamping plates 21 of the adjustment frames 1 on both sides. Fastening screws are installed at the welding port of the beam, that is, the clamping plate 21 can be fixed to the corresponding longitudinal beam, and then the beam is placed between the two longitudinal beams, and then the position of the pull rod 36 is adjusted to make the length of the entire telescopic mechanism 3 Consistent with the length of the beam, the beam is fixed on the longitudinal beam, and the two clamping plates 21 exert a pressing force on the entire welding workpiece 5, so that the welding of the beam can be performed. When welding workpieces 5 of different specifications, only The pull rod 36 needs to be pulled apart again, and another welding workpiece 5 is placed between the two clamping plates 21, and the pull rod 36 is adjusted again to make the clamping plate 21 clamp the welding workpiece 5. When the equipment needs to be moved, pull the pull rod 36, The adjustment frames 1 on both sides are combined with each other, so that the volume of the whole device is reduced and it is convenient to move.

As shown in FIGS. 4 and 6 , two traction mechanisms 4 are arranged between the two clamping plates 21 , and the traction mechanism 4 includes two lifting rods 41 . A retractable inner rod 45 is slidably connected inside the outer tube 44, and a fixed rod 46 is fixedly connected between the two retractable inner rods 45. When the length of the telescopic mechanism 3 is adjusted, the traction mechanism 4 at the top of the entire device also moves accordingly. When the retractable mechanism 3 becomes longer, the retractable inner rod 45 inside the retractable outer tube 44 slides outward, and when the retractable mechanism 3 becomes shorter, the retractable inner rod 45 outside the retractable outer tube 44 slides toward the inside of the retractable outer tube 44, so that the entire The total length of the traction mechanism 4 is always synchronized with the length of the telescopic mechanism 3 .

As shown in FIG. 5 , an L-shaped sliding groove 23 is opened above the middle part of one side of the clamping plate 21 , and an L-shaped sliding block 42 is fixedly connected to the upper part of the middle part of the lifting rod 41 . The L-shaped sliding block 42 is connected to the L-shaped sliding groove. 23 slide and snap, the handle 43 is fixedly connected to the outer side of the lifting rod 41, pull the handle 43 on the outer side of the lifting rod 41, so that the L-shaped slider 42 slides horizontally along the L-shaped chute 23, so that the entire traction mechanism 4 can be clamped The plate 21 can be positioned at any position, and the handle 43 can be pulled upward to move the lift rod 41 upward, thereby increasing the height of the entire traction mechanism 4 .

As shown in FIG. 7 , a fixing mechanism 6 is provided between the two telescopic fixing rods 46 , and the fixing mechanism 6 includes a first fixing component 61 and a second fixing component 62 . When in use, the two traction mechanisms 4 need to be aligned and welded The beam is positioned and fixed, and the first fixing component 61 and the second fixing component 62 are respectively clamped on both sides of the beam to keep the beam in a vertical state and prevent the beam from falling sideways and affecting the welding effect.

As shown in FIGS. 7 and 8 , the first fixing assembly 61 includes a first fixing plate 611 , the second fixing assembly 62 includes a second fixing plate 621 , and both the first fixing plate 611 and the second fixing plate 621 are fixed to the fixing rod 46 Connection, the fixing rods 46 on the two traction mechanisms 4 are respectively connected with the first fixing plate 611 and the second fixing plate 621 , and the entire first fixing plate 611 and the second fixing plate 621 together produce the function of the fixing mechanism 6 .

As shown in FIGS. 7 and 8 , an L-shaped rod 612 is fixedly connected to the upper part of the middle part of the first fixing plate 611 , an opening is opened above the middle part of the second fixing plate 621 , and the first fixing plate 611 is fixed to the second fixing plate 611 . When the plate 621 approaches, the L-shaped rod 612 on the first fixing plate 611 enters the opening of the second fixing plate 621 .

As shown in FIG. 7 , a baffle 624 is fixedly connected above the middle of one side of the second fixing plate 621 , and an arc-shaped slider 622 is slidably connected inside the baffle 624 . A spring 623 is fixedly connected between them. When sliding the first fixing plate 611 to the second fixing plate 621, the L-shaped rod 612 moves towards the arc-shaped slider 622 and squeezes close to it. At the same time, the L-shaped rod 612 moves deeper into the opening, the corner position of the L-shaped rod 612 moves to the arc-shaped slider 622, the arc-shaped slider 622 is no longer compressed, and the spring 623 and the arc-shaped slider 622 return to the initial state, so that the The arc-shaped sliding block 622 and the L-shaped rod 612 are clamped to each other, thereby realizing the fixing of the beam by the first fixing plate 611 and the second fixing plate 621. When the fixing needs to be canceled, the handle for connecting the second fixing plate 621 43 is lifted up, so that the lifting rod 41 drives the second fixing plate 621 to move upward, the arc-shaped slider 622 of the second fixing plate 621 slides to the upper side of the L-shaped rod 612, and the arc-shaped slider 622 and the L-shaped rod 612 are no longer After snapping, the L-shaped rod 612 is disengaged from the opening, and the first fixing component 61 and the second fixing component 62 no longer have a clamping effect on the beam.

As shown in FIG. 6 , the length of the shrinking outer tube 44 is equal to the length of the shrinking inner rod 45 , the inner diameter of the shrinking outer tube 44 is 1.2 times the outer diameter of the shrinking inner rod 45 , and the adjacent end of the shrinking outer tube 44 and the shrinking inner rod 45 is Both are fixedly connected to the limiting piece, and the inner diameter of the shrinking outer tube 44 is equal to the outer diameter of the limiting piece, so that the shrinking inner rod 45 can slide inside the shrinking outer tube 44 without detachment.

As shown in FIGS. 5 and 7 , the surface of the spring 623 is coated with anti-rust agent, and the L-shaped chute 23 and the rectangular chute 35 are coated with lubricant, which increases the service life of the spring 623 and makes it easier to pull the rod 36 and move It is more labor-saving when the handle is 43.

The use method and working principle of the device: slide the pull rod 36 from the other end of the rectangular chute 35 to the positioning block 33, the pull rod 36 drives the sliding block 34 to move, and the rotating arm 311 connected with the sliding block 34 moves accordingly. The staggered rotating arms 311 are rotatably connected by the first rotating shaft 312 , the outer ends of the two rotating arms 311 are close to each other, the length of the entire telescopic assembly 31 becomes longer, and the second rotating shaft 32 also passes between the two telescopic assemblies 31 Rotationally connected, so the movement of each telescopic component 31 of the entire telescopic mechanism 3 is interrelated, so that the length of the entire telescopic mechanism 3 is also longer, the distance between the two adjustment frames 1 is also increased, and the traction mechanism 4 is also increased accordingly. Move, fix the two longitudinal beams on the clamping plates 21 of the adjustment frame 1 on both sides, then place the beam between the two longitudinal beams, and then adjust the position of the pull rod 36 so that the length of the entire telescopic mechanism 3 is the same as that of the beam. Consistently, pull the handle 43 to make the L-shaped slider 42 slide horizontally along the L-shaped chute 23, control the first fixing assembly 61 and the second fixing assembly 62 to be clamped on both sides of the beam respectively, and make the first fixing plate 611 move toward the The second fixing plate 621 approaches, the L-shaped rod 612 moves toward the arc-shaped slider 622 and squeezes close, the arc-shaped slider 622 is compressed to compress the spring 623, and at the same time the L-shaped rod 612 moves deeper into the opening, the L-shaped rod The corner position of 612 moves to the arc-shaped slider 622, the arc-shaped slider 622 is no longer pressed, and the spring 623 and the arc-shaped slider 622 return to the initial state, so that the arc-shaped slider 622 and the L-shaped rod 612 are engaged with each other Therefore, the first fixing plate 611 and the second fixing plate 621 are fixed to the beam. When it is necessary to cancel the fixing, the handle 43 connected to the second fixing plate 621 is lifted up, so that the lifting rod 41 drives the second fixing plate 621 upward. The arc-shaped slider 622 of the second fixing plate 621 slides to the upper side of the L-shaped rod 612, the arc-shaped slider 622 and the L-shaped rod 612 are no longer engaged, and the L-shaped rod 612 is disengaged from the opening at this time. The first fixing component 61 and the second fixing component 62 no longer have a clamping effect on the beam, and the welding of the beam can be carried out at this time. A welding workpiece 5 is placed between the two clamping plates 21, and the pull rod 36 is adjusted again to make the clamping plate 21 clamp the welding workpiece 5. When the equipment needs to be moved, pull the pull rod 36 to make the adjustment frames 1 on both sides merge with each other. , making the whole device smaller and easier to move.

Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it is still possible to modify the technical solutions described in the foregoing embodiments, or to perform equivalent replacements for some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims (9)

1. The utility model provides a be used for truck crossbeam weld forming fixed equipment, includes welding workpiece (5) and two alignment jig (1), its characterized in that: clamping mechanisms (2) are arranged on the top surfaces of the two adjusting frames (1), each clamping mechanism (2) comprises a clamping plate (21), connecting arms (22) are fixedly connected between two sides of the middle of the upper end of each adjusting frame (1) and the lower part of the middle of one side of each clamping plate (21), two connecting arms (22) are fixedly connected between each clamping plate (21) and the corresponding adjusting frame (1), and a telescopic mechanism (3) is fixedly connected between the two adjusting frames (1);

telescopic machanism (3) are including a plurality of telescopic component (31) and a plurality of second rotation axis (32), telescopic component (31) are including first rotation axis (312) and two swinging boom (311), the both ends of first rotation axis (312) are put with the central point of two swinging boom (311) respectively and are rotated and be connected, rotatory hole has all been seted up, two at the both ends of swinging boom (311) all rotate through second rotation axis (32) that correspond the position between swinging boom (311) of telescopic machanism (3) and connect, two rectangle spout (35), two have all been seted up to the side of alignment jig (1) the equal fixedly connected with locating piece (33) of inside wall of alignment jig (1), the equal sliding block joint in inside of rectangle spout (35) has pull rod (36), equal fixedly connected with sliding block (34) between pull rod (36) and adjacent swinging boom (311), equal fixed connection between locating piece (33) and adjacent swinging boom (311).

2. The weld forming fixture for truck beams according to claim 1, wherein: two be provided with two drive mechanism (4) between grip block (21), drive mechanism (4) include two lifter (41), adjacent side fixedly connected with shrink outer tube (44) of lifter (41), the inside equal sliding connection of shrink outer tube (44) has pole (45) in the shrink, two fixedly connected with dead lever (46) between pole (45) in the shrink.

3. The weld forming fixture for truck beams according to claim 2, wherein: l shape spout (23) have been seted up to the middle part top of grip block (21) one side, the middle part top fixedly connected with L shape slider (42) of lifter (41) one side, L shape slider (42) and L shape spout (23) slip joint, the outside fixedly connected with handle (43) of lifter (41).

4. The weld forming fixture for truck beams according to claim 2, wherein: a fixing mechanism (6) is arranged between the two telescopic fixing rods (46), and the fixing mechanism (6) comprises a first fixing component (61) and a second fixing component (62).

5. The weld forming fixture for truck beams according to claim 4, wherein: the first fixing assembly (61) comprises a first fixing plate (611), the second fixing assembly (62) comprises a second fixing plate (621), and the first fixing plate (611) and the second fixing plate (621) are fixedly connected with the fixing rod (46).

6. The weld forming fixture for truck beams according to claim 5, wherein: an L-shaped rod (612) is fixedly connected to the upper portion of the middle of one side of the first fixing plate (611), and an opening is formed in the upper portion of the middle of one side of the second fixing plate (621).

7. The weld forming fixture for truck rails according to claim 6, wherein: middle part top fixedly connected with baffle (624) of second fixed plate (621) one side, inside sliding connection has arc slider (622) baffle (624), fixedly connected with spring (623) between arc slider (622) and second fixed plate (621) opening inner wall.

8. The weld forming fixture for truck beams according to claim 2, wherein: the length of shrink outer tube (44) equals with the length of shrink interior pole (45), the internal diameter of shrink outer tube (44) is 1.2 times for the external diameter of shrink interior pole (45), shrink outer tube (44) and the equal fixedly connected with spacing piece of the adjacent one end of shrink interior pole (45), the internal diameter of shrink outer tube (44) equals with the external diameter of spacing piece.

9. The weld forming fixture for truck beams according to claim 7, wherein: the surface of the spring (623) is coated with an antirust agent, and the interiors of the L-shaped sliding groove (23) and the rectangular sliding groove (35) are coated with a lubricant.

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