Car body welding production line

Abstract

The utility model relates to the technical field of intelligent welding systems, in particular to a car body welding production line which comprises a sliding table, a main track and a plurality of side tracks in cross butt joint with the main track, and the sliding table is in sliding connection with the main track and the side tracks. The guide rail further comprises a guide mechanism and a plurality of abutting and pushing mechanisms, the guide mechanism is connected to the crossed connecting position of the main rail and the side rail through screws, and a square is defined by the guide mechanism. The abutting and pushing mechanisms are connected to the main rail and the side rails through screws and evenly distributed in the four directions of a square defined by the guide mechanisms. A square boss is fixed to the bottom of the sliding table and can freely slide on the guide mechanism. According to the device, car body parts can be conveyed from different storage positions on a production line to a machining storage position through traction equipment to be welded and machined, the conveying efficiency is effectively improved, meanwhile, the guiding mechanism and the abutting and pushing mechanism on the rail can achieve accurate guiding, abrasion of traction parts can be relieved, and the service life of the device is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of intelligent welding system technology, in particular to a car body welding production line. Background Art

[0002] In the automobile industry, welding is a key link in the manufacturing of automobile parts and car bodies, and plays a special role in connecting the upper and lower parts. At the same time, there are many types of automobile products with complex forming structures. In order to improve processing efficiency, automated welding production lines are often used in actual production to weld the white body. The same production line can process multiple models of products with different requirements, which can ensure the efficient operation of the company's production.

[0003] The prior art "A flexible automatic switching cross slide device" (publication number: CN209969899U) discloses a car body welding device with the function of automatically switching car models and workstations; however, the prior art still has the following technical problems:

[0004] The device of the prior art needs to transfer the positioning plate for clamping the workpiece from the second guide rail device or the third guide rail device to the first guide rail device when switching vehicle models, and the second guide rail device or the third guide rail device is vertically cross-connected to the first guide rail device. When the positioning plate is transferred at the intersection of the guide rails, it is necessary to rely on the cylinder on the first guide rail device to drive the pin to be inserted into the pin hole on the positioning plate for fixation, so that the traction equipment can move with the positioning plate, and the position of the positioning plate at the intersection of the guide rails is difficult to limit, resulting in the pin being unable to accurately align with the pin hole on the positioning plate, so that the pin will rub against the pin hole when inserted into the pin hole, thereby accelerating the wear of the pin. Utility Model Content

[0005] The vehicle body welding production line of the utility model can solve the problem that the existing slide table equipment easily causes the wear of the latch pins.

[0006] The present application provides the following technical solution: a car body welding production line, comprising a slide, a main track and a plurality of side tracks cross-jointed with the main track, wherein the slide is slidably connected to the main track and the side tracks;

[0007] It also includes a guide mechanism and multiple push mechanisms. The guide mechanism is screwed to the intersection of the main track and the side track, and the guide mechanism forms a square. The push mechanisms are screwed to the main track and the side track, and the push mechanisms are evenly distributed at the four directions of the square formed by the guide mechanism.

[0008] A square boss is fixed at the bottom of the slide, and the boss can slide arbitrarily on the guide mechanism.

[0009] Beneficial effect: When the slide moves from the side track to the main track, the push mechanism can push the four side wall surfaces of the boss, and the boss can slide arbitrarily on the guide mechanism. When the push mechanism pushes the boss from four directions at the same time, the slide can be adjusted to the most correct position where the main track and the side track intersect, so that the traction device can be accurately docked with the slide, so as to reduce the wear of the connecting parts between the traction device and the slide and increase the service life of the connecting parts.

[0010] Furthermore, the guide mechanism includes a plurality of mounting plates connected to the main track by screws, the plurality of mounting plates form a square, and a plurality of universal ball bearings are screwed to the mounting plates; the universal ball bearing includes a base connected to the mounting plate by screws, the base is provided with a hemispherical groove, a plurality of small spheres are installed in the groove, a large sphere is rotatably connected to the small sphere, a locking cover is threadedly connected above the base, the large sphere extends out of the upper surface of the locking cover, and the large sphere can rotate in any direction in the hemispherical groove.

[0011] Beneficial effect: The large ball of the universal ball can rotate in any direction, so that after the slide enters the universal ball from the side track, it is convenient for the push mechanism to push the slide, so that the position of the slide is easier to adjust.

[0012] Furthermore, the push mechanism includes a support base and two vertical plates connected to the support base by screws, the two vertical plates are arranged opposite to each other, an active arm is pivoted in the middle of the two vertical plates, one end of the active arm is hinged to a driving cylinder, the end of the active arm away from the cylinder is pivoted to a driven arm, the end of the driven arm away from the active arm is pivoted to a swing rod, a strip plate is welded above the swing rod, a roller is rotatably connected to the strip plate, a fixed block is pivoted below the swing rod, and the fixed block is screwed to the support base.

[0013] Beneficial effect: The cylinder generates a driving force, which allows the swing rod and the roller to move closer to or away from the universal ball on the guide mechanism. The slide moves from the side track to the universal ball, and then relies on the swing rod and the roller to push the four sides of the boss at the bottom of the slide, making it easier to straighten the slide.

[0014] Furthermore, the main track and the side track are both provided with slide rails, the inner side of the slide rails are fixedly connected with racks, the upper side of the slide rails are slidably connected with sliders, the sliders are screwed with reducers, and the driving gear of the reducer is meshed with the racks on the inner side of the slide rails.

[0015] Beneficial effect: When the reduction motor is started, the driving gear meshes with the rack, thereby driving the reduction motor to move along the slide rail.

[0016] Furthermore, a vertical cylinder is fixedly connected to the reduction motor, and a pin is threadedly connected to the head of the piston rod of the vertical cylinder.

[0017] Beneficial effect: The vertical cylinder can control the up and down movement of the latch, thereby realizing the connection and separation of the latch and the slide.

[0018] Furthermore, the slide table is provided with a plurality of pin holes, and bushings are fixedly connected in the pin holes.

[0019] Beneficial effect: The bushing in the pin hole facilitates the insertion of the pin, reduces the wear of the pin, and prolongs the service life of the pin. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is the main view of the car body welding production line.

[0021] Figure 2 for Figure 1 Enlarged view of point A in the middle.

[0022] Figure 3 for Figure 1 Enlarged view of point B in the middle.

[0023] Figure 4 for Figure 3 Top view of the middle guide mechanism.

[0024] Figure 5 for Figure 4 Half-section view.

[0025] Figure 6 for Figure 3 Enlarged view of C in the middle.

[0026] Figure 7 for Figure 6 Half-section view. DETAILED DESCRIPTION

[0027] The following is further described in detail through specific implementation methods:

[0028] The marks in the drawings of the specification include: slide 1, main track 2, slide rail 201, positioning block 202, transmission wheel 203, rack 204, guide wheel 205, side track 3, pin hole 4, vertical cylinder 5, mounting seat 6, mounting plate 7, universal ball 8, base 9, screw hole 901, locking cover 10, large sphere 11, small sphere 12, support 13, driving cylinder 14, connecting head 15, vertical plate 16, active arm 17, driven arm 18, strip plate 19, roller 20, swing rod 21, fixed block 22, support seat 23, reduction motor 24.

[0029] Embodiment 1

[0030] like Figures 1 to 7As shown, the car body welding production line includes a slide 1, a main track 2 and side tracks 3 arranged on both sides of the main track 2. There are multiple side tracks 3, which are cross-connected with the main track 2 in a cross shape. The slide 1 can slide on the main track 2 and the side tracks 3.

[0031] The main track 2 has the same structure as the side track 3. This application takes the structure on the main track 2 as an example for explanation. Figure 2 As shown, the main track 2 is screwed with a pair of slide rails 201, the inner wall of one of the slide rails 201 is screwed with a rack 204, the teeth of the rack 204 are horizontally arranged, a slider is slidably connected above the slide rail 201, a reduction motor 24 is arranged above the slider, the slider is fixed with the reduction motor 24 with screws, the driving gear of the reduction motor 24 is vertically arranged downward, and the driving gear is meshed with the rack 204, when the reduction motor 24 rotates, the reduction motor 24 can slide along the direction of the slide rail 201; the end of the reduction motor 24 close to the slide 1 is screwed with a mounting seat 6, and one side of the mounting seat 6 is screwed with a vertical cylinder 5, A cylindrical pin is threadedly connected to the piston rod head of the cylinder 5; a plurality of strip-shaped positioning blocks 202 are screwed to the beams on both sides of the main track 2, and the positioning blocks 202 are evenly spaced along the main track 2. Grooves are provided at both ends of the positioning blocks 202, and a transmission wheel 203 is pivotally connected in the groove. A portion of the transmission wheel 203 extends out of the upper surface of the positioning block 202, and the transmission wheel 203 can rotate in the groove of the positioning block 202. A plurality of guide wheels 205 are also screwed to the outermost beam of the main track 2 of the positioning block 202, and the guide wheels 205 can be evenly spaced along the direction of the main track 2, and the guide wheels 205 can rotate around the bare rod portion of the screw.

[0032] like Figure 2 As shown, a tooling for clamping body parts is fixed with screws above the slide 1, and a plurality of pin holes 4 are provided on the surface of the slide 1 around the tooling, and a bushing is interference fit in the pin hole 4, and the pin of the piston rod head of the vertical cylinder 5 can be inserted into the bushing. A whole square boss is connected to the bottom center screw of the slide 1, and the bottom surface of the boss can be mounted on the roller 20. When the pin of the vertical cylinder 5 is inserted into the pin hole 4 in the slide 1, the reduction motor 24 can drive the slide 1 to move along the main track 2. The width of the boss is narrower than that of the slide 1, so that the boss and the slide 1 form a strip-shaped notch that can accommodate the guide wheel 205, and the guide wheel 205 can guide the side of the boss.

[0033] like Figure 3 As shown, a guide mechanism and a plurality of push mechanisms are provided at the cross-connection of the main track 2 and the side track 3. The guide mechanism includes Figure 3 The plurality of mounting plates 7 are connected to the main track 2 by screws, and the plurality of mounting plates 7 form a square, and a plurality of universal ball bearings 8 are connected to the mounting plates 7 by screws; Figure 4 and Figure 5As shown, the universal ball 8 includes a base 9, and the base 9 is evenly distributed with screw holes 901. The base 9 can be fixed on the mounting plate 7 by screws passing through the screw holes 901. A hemispherical groove is opened in the center of the base 9, and a plurality of identical small spheres 12 are installed in the groove. A large sphere 11 is arranged on the small sphere 12. A step is arranged on the base 9, and a locking cover 10 is threadedly connected on the step. The large sphere 11 extends out of the upper surface of the locking cover 10. The locking cover 10 restricts the large sphere 11 on the base 9, and the large sphere 11 can rotate in any direction in the hemispherical groove. The highest point of the large sphere 11 is flush with the highest point of the transmission wheel 203, so that the boss at the bottom of the slide 1 can be smoothly moved from the transmission wheel 203 of the main track 2 or the side track 3 to the large sphere 11.

[0034] Push mechanism such as Figure 6 and Figure 7 As shown, the uniform distribution is set at Figure 3 In the main track 2 and the side track 3 around the universal ball 8, the push mechanism includes a support seat 23 screwed to the main track 2 or the side track 3 and two vertical plates 16 screwed to the support seat 23. The two vertical plates 16 are arranged opposite to each other, and an active arm 17 is pivotally connected between the two vertical plates 16. The shape of the active arm 17 is as shown in FIG. Figure 7 As shown, one end of the active arm 17 is pivoted to the driven arm 18, and the end of the driven arm 18 away from the active arm 17 is pivoted to the swing rod 21, a strip plate 19 is welded above the swing rod 21, and a roller 20 is screwed on the strip plate 19, and the roller 20 can rotate around the bare rod part of the screw, and the lower end of the swing rod 21 is pivoted to a fixing block 22, and the fixing block 22 is screwed to a support seat 23; the lower end of the active arm 17 away from the side of the driven arm 18 is pivoted to a connecting head 15, the connecting head 15 is provided with an open groove, the lower end of the active arm 17 is pivoted to the open groove, the end of the connecting head 15 away from the open groove is provided with a driving cylinder 14, the connecting head 15 is threadedly fastened to the piston rod head of the driving cylinder 14, the end of the driving cylinder 14 away from the connecting head 15 is pivoted to a support 13, and the support 13 is screwed to the main track 2 or the side track 3.

[0035] The transportation methods of this production line are as follows:

[0036] Figure 1In the embodiment, the position of the slide 1 on the main track 2 is the processing storage position, and the position of the slide 1 on the side track 3 is the storage position. There are multiple storage positions, and different types of body parts can be stored according to different clamping tools on the slide 1. When working, the pin of the reduction motor 24 on the corresponding side track 3 is inserted into the pin hole 4 on the slide 1, and drives the slide 1 to move toward the main track 2. When the slide 1 moves to the universal ball 8, the pin of the reduction motor 24 on the side track 3 is reset and separated from the slide 1; the driving cylinder 14 then drives the swing rod 21 to make the swing rod 21 swing toward the universal ball 8, and the roller 20 on the swing rod 21 swings the bottom of the slide 1. The side of the boss is pushed against and the slide 1 is adjusted to the exact center of the intersection of the main track 2 and the side track 3, so as to guide the slide 1. At this time, the pin of the reduction motor 24 on the main track 2 can be accurately inserted into the corresponding pin hole 4 on the slide 1, and the piston rods of all driving cylinders 14 are reset. The reduction motor 24 on the main track 2 can drive the slide 1 to move to the processing position at the end of the main track 2. The processing position is also provided with a vertical cylinder 5 to facilitate the positioning of the slide 1 after it is in place. The pin of the reduction motor 24 on the main track 2 is reset and separated from the slide 1, and the welding robot located next to the processing position can perform welding processing on the body parts on the slide 1.

[0037] The above is only an embodiment of the utility model. The utility model is not limited to the field involved in this implementation case. The common knowledge such as the known specific structure and characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the structure of the utility model, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A car body welding production line, comprising a slide, a main track and a plurality of side tracks cross-jointed with the main track, wherein the slide is slidably connected to the main track and the side tracks, and characterized in that: It also includes a guide mechanism and a plurality of push mechanisms, wherein the guide mechanism is screwed to the intersection of the main track and the side track, and the guide mechanism forms a square; the push mechanisms are screwed to the main track and the side track, and the push mechanisms are evenly distributed at the four positions of the square formed by the guide mechanism; A square boss is fixed at the bottom of the slide, and the boss can slide arbitrarily on the guide mechanism.

2. The car body welding production line according to claim 1, characterized in that: The guide mechanism includes a plurality of mounting plates connected to the main track by screws, the plurality of mounting plates form a square, and a plurality of universal ball bearings are screwed to the mounting plates; the universal ball bearing includes a base connected to the mounting plate by screws, the base is provided with a hemispherical groove, a plurality of small spheres are installed in the groove, a large sphere is rotatably connected to the small sphere, a locking cover is threadedly connected above the base, the large sphere extends out of the upper surface of the locking cover, and the large sphere can rotate in any direction in the hemispherical groove.

3. The car body welding production line according to claim 2, characterized in that: The push mechanism includes a support seat and two vertical plates connected to the support seat by screws, the two vertical plates are arranged opposite to each other, an active arm is pivoted in the middle of the two vertical plates, one end of the active arm is hinged to a driving cylinder, the end of the active arm away from the cylinder is pivoted to a driven arm, the end of the driven arm away from the active arm is pivoted to a swing rod, a strip plate is welded above the swing rod, a roller is rotatably connected to the strip plate, a fixed block is pivoted below the swing rod, and the fixed block is screwed to the support seat.

4. The car body welding production line according to claim 3 is characterized in that: The main track and the side track are both provided with slide rails, the inner side of the slide rails is fixedly connected with a rack, the upper side of the slide rails is slidably connected with a slider, the slider is screwed with a reduction motor, and the driving gear of the reduction motor is meshed with the rack inside the slide rails.

5. The car body welding production line according to claim 4, characterized in that: The reduction motor is also fixedly connected with a vertical cylinder, and the head of the piston rod of the vertical cylinder is threadedly connected with a latch.

6. The car body welding production line according to claim 5, characterized in that: The slide table is provided with a plurality of pin holes, and bushings are fixedly connected in the pin holes.

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