Cross transfer type production line

Abstract

The utility model relates to the technical field of intelligent welding systems, in particular to a cross transfer type production line which comprises a main track and a plurality of side tracks in cross butt joint with the main track and further comprises a traction mechanism in sliding connection with the main track, a driving mechanism fixed to the traction mechanism and a material disc in sliding connection with the driving mechanism. The induction mechanism is detachably connected to the driving mechanism; the limiting mechanism is fixedly connected with the charging tray; the limiting mechanism comprises a positioning seat connected to the bottom of the material disc through screws, four mounting blocks are fixedly connected to the lower portion of the positioning seat, the four mounting seats are symmetrically arranged in a cross shape, a square limiting hole is defined by the middles of the four mounting seats, a groove is formed in each mounting seat, and the limiting blocks are arranged in the grooves. The directions of the grooves of the oppositely-arranged mounting bases are formed in the same straight line, and rubber rolling wheels are rotationally connected into the grooves of the mounting bases. According to the production line, quick transfer of the vehicle body parts can be achieved, and the production efficiency during machining can be effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of intelligent welding systems, in particular to a cross-transfer type production line. Background Art

[0002] The body in white refers to the assembly of body structural parts, i.e., covering parts, including front fenders, roof covers, doors, engine hoods, trunk covers, etc. The body in white is usually transported by conventional automated production lines during processing and welding. Multiple side tracks are arranged on both sides of the main track. The main track is provided with processing locations, and the side tracks are provided with storage locations. Slidable material trays are arranged on the main track and the side tracks. The material trays are used to fix body parts. The parts in different storage locations can be transported to the processing locations on the main track for welding through the material trays. For example, the prior art "A fixture library structure and welding production line for fast switching of multi-scenario applications" (publication number: CN113695795A) can improve the efficiency of parts transportation by using this automated production line. However, the prior art still has the following technical problems:

[0003] When the fixture base of the prior art moves from the fixture storage position (i.e., the side track) to the longitudinal track (i.e., the main track), the limit pin on the switching trolley needs to be inserted into the limit hole of the fixture base for limiting the position before the switching trolley can drive the fixture base to move. The limit pin and the limit hole are matched with each other in a hole-axis manner. During insertion, the limit pin may not be accurately inserted into the limit hole due to precision errors. Over time, the limit hole may wear and become larger, making the fixture base easy to shake when being pulled by the switching trolley, thereby reducing the stability of the components on the fixture base and causing the components to loosen. Utility Model Content

[0004] The utility model provides a cross-transfer type production line, which can solve the problem that parts are easily loosened when the body-in-white welding production line in the prior art uses a fixture base to transport parts.

[0005] The present application provides the following technical solution: a cross-transfer production line, comprising a main track and a plurality of side tracks cross-jointed with the main track, and also comprising a traction mechanism slidably connected to the main track, a driving mechanism fixed on the traction mechanism, and a material tray slidably connected to the driving mechanism;

[0006] It also includes a sensing mechanism detachably connected to the driving mechanism and a limiting mechanism fixedly connected to the material tray;

[0007] There are two sensing mechanisms, which are respectively arranged at the two ends of the driving mechanism. The sensing mechanism includes a bracket connected to the side of the driving mechanism by screws, and a proximity switch is fixedly connected to the bracket. The driving mechanism is also screwed with a sensing plate, and the outer surface of the sensing plate is parallel to the contact surface of the proximity switch.

[0008] The limiting mechanism includes a positioning seat connected to the bottom of the material tray by screws, and four mounting blocks are fixedly connected below the positioning seat. The four mounting seats are symmetrically arranged in a cross shape, and a square limiting hole is formed in the middle of the four mounting seats. Each mounting seat is provided with a groove, and the directions of the grooves of the relatively arranged mounting seats are provided on the same straight line. A rubber roller is rotatably connected in the groove of the mounting seat.

[0009] Beneficial effect: When the driving mechanism transfers the material tray to the main track, the sensing plate of the driving mechanism will approach the proximity switch of the sensing mechanism. When the sensing plate is facing the contact surface of the proximity switch, the driving mechanism stops moving, so that the limiting holes surrounded by the four mounting blocks at the bottom of the material tray are aligned with the pins of the traction mechanism, so as to improve the accuracy of the material tray when it is moved into place. At the same time, the rubber roller on the mounting block can also guide the pin, so that the pin can be inserted into the limiting hole more smoothly. The rubber roller has good elasticity and wear resistance and is not easy to wear, thereby ensuring that the material tray will not shake violently after the pin is inserted into the limiting hole, so as to avoid loosening of parts on the material tray.

[0010] Furthermore, two guide rails are fixed on the main track, and a first rack is also fixed on the main track between the two guide rails.

[0011] Beneficial effect: The guide rail can guide the traction mechanism, making it convenient for the traction mechanism to move stably with the material tray on the main track.

[0012] Furthermore, the traction mechanism includes a base slidably connected to the guide rail, a cross beam is fixed above the base, the cross beam and the guide rail are arranged in a cross shape, a plurality of transmission wheels are rotatably connected to the cross beam, and a first reducer is also fixed on the base, and a drive gear of the first reducer is meshed with the first rack.

[0013] Beneficial effect: Driven by the first reducer, the base can be moved on the main track, and the crossbeam and the guide rail are arranged crosswise, and a transmission wheel is arranged on the crossbeam, so that the material tray can be quickly transferred from the side track to the main track.

[0014] Furthermore, a vertically arranged first cylinder is fixedly connected to the crossbeam.

[0015] Beneficial effect: The latch of the first cylinder can be inserted into the limiting hole surrounded by the mounting seat, which is convenient for positioning the material tray and prevents the material tray from deviating from the main track during movement.

[0016] Further, the driving mechanism includes a fixed seat fixedly connected to the middle part of the base and a feeding plate slidably connected to the fixed seat, the fixed seat includes a mounting plate fixed to the base, two supporting plates parallel to each other are fixed on the mounting plate, the two supporting plates are rotatably connected with first rollers, a driving shaft and a driven shaft are rotatably connected between the two supporting plates, the rods of the driving shaft and the transmission shaft are respectively key-connected with a driving gear and a driven gear, one end of the driving shaft is key-connected with a second reducer, the second reducer is fixed to the base, one end of the driving shaft away from the second reducer is key-connected with a first pulley, one end of the driven shaft is key-connected with a second pulley, and the first pulley and the second pulley are connected by a belt.

[0017] Beneficial effect: The driving force of the second reducer is transmitted to the driven shaft through the driving shaft and the belt in turn, thereby driving the driving gear and the driven gear to rotate synchronously, making it convenient to drive the feeding plate to slide on the fixed seat, thereby realizing the transfer of the material tray on the feeding plate between the main track and the side track.

[0018] Furthermore, the feeding plate includes a flat plate and two concave slide rails on both sides of the flat plate connected by screws, the concave slide rails are provided with grooves, the groove openings are arranged opposite to each other, the first roller on the support plate is located in the groove, and a second rack connected to the flat plate screws is provided between the two concave slide rails, the second rack is meshed with the driving gear and the driven gear; the middle screw of the flat plate is connected to the second cylinder.

[0019] Beneficial effect: The second reducer can drive the driving gear and the driven gear to rotate, and the driving gear and the driven gear then drive the rack to move the entire feeding plate to achieve the transfer of the material tray on the main track and the side track.

[0020] Furthermore, the side track includes a frame, a plurality of supports are screwed on the frame, a second roller is rotatably connected to the support, and the second roller is located on the same straight line as the first roller and has the same horizontal height.

[0021] Beneficial effect: Driven by the second reducer, the feeding plate can transfer the material tray from the main track to the side track, and the second roller is displaced to the same horizontal height as the first roller, so that the concave slide rail of the feeding plate can slide smoothly from the first roller to the second roller, thereby improving the stability of the material tray during transfer. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a top view of the cross-transfer production line.

[0023] Figure 2 for Figure 1 Axonometric view of the center main track.

[0024] Figure 3 for Figure 2 A magnified partial view of B.

[0025] Figure 4 for Figure 2 Directional view from direction A in .

[0026] Figure 5 for Figure 4 Front view after removing the plate and second rack.

[0027] Figure 6 for Figure 2 Front view of the bottom of the center tray.

[0028] Figure 7 for Figure 6 A partial enlarged view of C in the middle.

[0029] Figure 8 for Figure 1 Axonometric view of the center side track. DETAILED DESCRIPTION

[0030] The following is further described in detail through specific implementation methods:

[0031] The marks in the drawings of the specification include: main track 1, guide rail 101, first reducer 102, driving gear 103, first rack 104, material tray 2, proximal pin hole 201, distal pin hole 202, side track 3, frame 301, support 302, second roller 303, third cylinder 304, base 4, crossbeam 5, transmission wheel 6, first cylinder 7, second reducer 8, mounting plate 9, support plate 10, flat plate 11, second rack 12, concave slide rail 13, first pulley 14, second pulley 15, belt 16, driving shaft 17, driving gear 18, driven shaft 19, driven gear 20, first roller 21, fixing block 22, bracket 23, proximity switch 24, induction plate 25, positioning seat 26, mounting block 27, rubber roller 28, second cylinder 29.

[0032] Embodiment 1

[0033] like Figures 1 to 8 As shown, the cross-transfer production line includes a material tray 2, a main track 1, and a plurality of side tracks 3 ( Figure 1 In the figure, two side rails 3 are used as an example, and the side rails 3 are symmetrically arranged on both sides of the main rail 1. The material tray 2 can be transferred and transported on the main rail 1 and the side rails 3. Figure 2 As shown, two guide rails 101 are screwed to the main rail 1 , and a first rack 104 is screwed to the main rail 1 between the two guide rails 101 . The first rack 104 is located at one side of one of the guide rails 101 .

[0034] like Figure 2As shown, a traction mechanism is slidably connected to the main track 1, and the traction mechanism includes a base 4, and movable rollers are installed on both sides of the base 4. The movable rollers enable the base 4 to roll on the guide rail 101. The side of the base 4 is screwed with a first reducer 102, and the driving gear 103 of the first reducer 102 is meshed with the first rack 104, so that when the first reducer 102 is working, it can drive the base 4 to move along the guide rail 101. The upper part of the base 4 is screwed with a cross beam 5, and the cross beam 5 and the guide rail 101 are arranged in a cross-staggered manner. The cross beam 5 is provided with threaded holes at equal intervals, and screws are inserted into the threaded holes. The ends of the screws are connected with locking nuts, and the smooth rod of the screw is penetrated with a transmission wheel 6, and the transmission wheel 6 can rotate on the smooth rod of the screw (the side track 3 is also provided with a transmission wheel 6, and its structure is the same as that of the transmission wheel 6 on the main track 1, which will not be repeated here). One end of the two cross beams 5 is screwed with two vertically arranged first cylinders 7, and the two first cylinders 7 are arranged diagonally.

[0035] The upper screw connection of the base 4 is as follows Figure 4 and Figure 5 The driving mechanism shown in the figure comprises a fixing seat connected to the middle of the base 4 by screws and a feeding plate slidably connected to the fixing seat; the fixing seat comprises a mounting plate 9 connected to the base 4 by screws, and two supporting plates 10 parallel to each other are screwed to the mounting plate 9, and the two supporting plates 10 are arranged oppositely, and the two supporting plates 10 are evenly spaced. Figure 5 The first roller shown is connected to the support plate 10 after being penetrated by a screw, and the first roller can rotate on the screw bare rod part, and multiple first rollers are arranged on the outer sides of the two support plates 10, and a driving shaft 17 and a driven shaft 19 are penetrated between the two support plates 10, and the connecting parts of the driving shaft 17 and the driven shaft 19 and the support plate 10 are installed with bearings, so that the driving shaft 17 and the driven shaft 19 can rotate relative to the support plate 10, and the rod parts of the driving shaft 17 and the transmission shaft are respectively key-connected with a driving gear 18 and a driven gear, and the driving gear 18 and the driven gear are both located between the two support plates 10, one end of the driving shaft 17 is key-connected with the second reducer 8, and the second reducer 8 is screwed to the base 4, and the end of the driving shaft 17 away from the second reducer 8 extends out of the end of the support plate 10 and is key-connected with the first pulley 14, and the end of the driven shaft 19 away from the second reducer 8 is key-connected with the second pulley 15, and the first pulley 14 and the second pulley 15 are connected by a belt 16 transmission connection.

[0036] The structure of the feeding plate is as follows Figure 4As shown, it includes a flat plate 11 and two concave slide rails 13 connected by screws on both sides below the flat plate 11. The concave slide rails 13 are provided with grooves, and the openings of the grooves are arranged opposite to each other. The first roller on the support plate 10 is located in the groove. A second rack 12 connected by screws to the flat plate 11 is provided between the two concave slide rails 13. The teeth of the second rack 12 face downward and mesh with the driving gear 18 and the driven gear; the middle screw of the flat plate 11 is connected with a vertically arranged second cylinder 29, and the pin of the second cylinder 29 can be extended upward.

[0037] like Figure 3 As shown, the driving mechanism is screwed to a sensing mechanism, and two sensing structures are provided, which are respectively arranged at both ends of the length direction of the flat plate 11. The sensing mechanism includes a fixing block 22 screwed to the outside of the support plate 10, and a bracket 23 is screwed to the fixing block 22. A circular hole is opened on the bracket 23, and a proximity switch 24 is locked in the circular hole. An L-shaped sensing plate 25 is screwed to the flat plate 11, and the surface of the sensing plate 25 is parallel to and opposite to the contact surface of the proximity switch 24.

[0038] like Figure 6 and Figure 7 As shown, a limiting mechanism is provided at the bottom of the tray 2, and the limiting mechanism includes: Figure 7 The screw shown is connected to the positioning seat 26 at the bottom of the material tray 2. Four mounting blocks 27 are fixedly connected below the positioning seat 26. The mounting block 27 is in the shape of a cube. The four mounting seats are symmetrically arranged in a cross shape, and a square limiting hole is formed in the middle of the four mounting seats. The position of the limiting hole corresponds to the installation position of the first cylinder 7, so that when the material tray 2 moves from the side track 3 to the driving mechanism, the pin of the first cylinder 7 can be inserted into the limiting hole. A groove is provided on each mounting seat. The directions of the grooves of the relatively arranged mounting seats are provided on the same straight line. A rubber roller 28 is pivotally connected in the groove of the mounting seat. The bottom of the material tray 2 is also provided with a groove as shown in FIG. Figure 6 The proximal latch hole 201 and the distal latch hole 202 are shown.

[0039] The structure of the side track 3 is as follows Figure 8 As shown, the side rail 3 includes a frame 301, and a plurality of supports 302 are screwed to the frame 301. The supports 302 are provided with threaded holes. The screws pass through the second rollers 303 and are screwed to the supports 302. The second rollers 303 can rotate on the bare rod part of the screws. The second rollers 303 and the first rollers are located on the same straight line and have the same horizontal height. The tail end of the frame 301 is also screwed to the third cylinder 304.

[0040] The transportation methods of this production line are as follows: Figure 1In the embodiment, the end of the main track 1 is the processing storage location. When the material tray 2 needs to be transported from the side track 3 to the processing storage location, the traction mechanism first moves to the corresponding position of the side track 3 for alignment, the second reducer 8 is started, driving the driving gear 18 and the driven gear to rotate, and the second rack 12 and the plate 11 connected to the second rack 12 will be sent to the side track 3. The side track 3 is screwed with a proximity switch. When the contact of the proximity switch senses that the plate 11 has moved into place, the pin of the second cylinder 29 on the plate 11 extends upward and is inserted into the proximal pin hole 201 at the bottom of the material tray 2. At the same time, the second cylinder 29 on the side track 3 is screwed with the second cylinder 29 on the plate 11. The latch of the third cylinder 304 is separated from the distal latch hole 202. At this time, the second reducer 8 reverses and relies on the latch of the second cylinder 29 to pull the tray 2 from the side track 3 to the top of the traction mechanism on the main track 1. When the sensing plate 25 of the sensing mechanism and the contact of the proximity switch 24 are inductively sensed in place, the latch of the first cylinder 7 can extend upward and insert into the limiting hole surrounded by the mounting seat at the bottom of the tray 2 to achieve the positioning of the tray 2. Then the first reducer 102 is started to transport the tray 2 along the main track 1 to the processing warehouse for processing, thereby completing the transfer and transportation of the tray 2 from the side track 3 to the main track 1.

[0041] 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 cross-transfer production line, comprising a main track and a plurality of side tracks cross-jointed with the main track, a traction mechanism slidably connected to the main track, a driving mechanism fixed on the traction mechanism, and a material tray slidably connected to the driving mechanism, characterized in that: It also includes a sensing mechanism detachably connected to the driving mechanism and a limiting mechanism fixedly connected to the material tray; There are two sensing mechanisms, which are respectively arranged at the two ends of the driving mechanism. The sensing mechanism includes a bracket connected to the side of the driving mechanism by screws, and a proximity switch is fixedly connected to the bracket. The driving mechanism is also screwed with a sensing plate, and the outer surface of the sensing plate is parallel to the contact surface of the proximity switch. The limiting mechanism includes a positioning seat connected to the bottom of the material tray by screws, and four mounting blocks are fixedly connected below the positioning seat. The four mounting seats are symmetrically arranged in a cross shape, and a square limiting hole is formed in the middle of the four mounting seats. Each mounting seat is provided with a groove, and the directions of the grooves of the relatively arranged mounting seats are provided on the same straight line. A rubber roller is rotatably connected in the groove of the mounting seat.

2. The cross-transfer production line according to claim 1 is characterized in that: Two guide rails are fixed on the main track, and a first rack is also fixed on the main track between the two guide rails.

3. The cross-transfer production line according to claim 2 is characterized in that: The traction mechanism includes a base slidably connected to the guide rail, a cross beam is fixed above the base, the cross beam and the guide rail are arranged in a cross-staggered manner, a plurality of transmission wheels are rotatably connected to the cross beam, and a first reducer is also fixed on the base, and a driving gear of the first reducer is meshed with the first rack.

4. The cross-transfer production line according to claim 3 is characterized in that: The crossbeam is also fixedly connected to a vertically arranged first cylinder.

5. The cross-transfer production line according to claim 4 is characterized in that: The driving mechanism includes a fixed seat fixedly connected to the middle part of the base and a feeding plate slidably connected to the fixed seat, the fixed seat includes a mounting plate fixed to the base, two supporting plates parallel to each other are fixed on the mounting plate, the two supporting plates are rotatably connected with first rollers, a driving shaft and a driven shaft are rotatably connected between the two supporting plates, the rods of the driving shaft and the transmission shaft are respectively key-connected with a driving gear and a driven gear, one end of the driving shaft is key-connected with a second reducer, the second reducer is fixed to the base, one end of the driving shaft away from the second reducer is key-connected with a first pulley, one end of the driven shaft is key-connected with a second pulley, and the first pulley and the second pulley are connected by a belt.

6. The cross-transfer production line according to claim 5 is characterized in that: The feeding plate includes a flat plate and two concave slide rails on both sides of the flat plate connected by screws. The concave slide rails are provided with grooves, and the openings of the grooves are arranged opposite to each other. The first roller on the support plate is located in the groove. A second rack connected to the flat plate screws is provided between the two concave slide rails, and the second rack is meshed with the driving gear and the driven gear; the middle screw of the flat plate is connected to the second cylinder.

7. The cross-transfer production line according to claim 6 is characterized in that: The side track comprises a frame, a plurality of supports are screwed on the frame, a second roller is rotatably connected to the support, and the second roller is located on the same straight line as the first roller and has the same horizontal height.

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