Intelligent conveying device for automobile assembly line

Abstract

The invention relates to the technical field of automobile assembly, in particular to an automobile assembly line intelligent conveying device which comprises a conveying mechanism, the conveying mechanism comprises a conveying rack, a driving motor is fixedly installed on one side of one end of the conveying rack, a transmission rod is rotatably installed on the conveying rack, and a conveying roller and a chain wheel are welded to the transmission rod; limiting rings are arranged on the two sides of each conveying roller, chains are arranged on the chain wheels, the transmission rods are distributed in a linear array mode in the conveying direction of the conveying rack, and one ends of the transmission rods in the linear array penetrate through the side, away from the driving motor, of the conveying rack. And chain wheels are fixedly installed at the ends, penetrating through the sides away from the driving motor, of the transmission rods in a linear array mode, and the chain wheels are matched with the chains in an engaged mode. And the problem of derailing of the skid is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile assembly, and more particularly to an intelligent conveying device for an automobile assembly line. Background Art

[0002] In automobile assembly, the skid conveyor is an indispensable part of the automobile assembly line. Its performance and stability directly affect the efficiency and cost of the entire production process. Traditional conveying methods are often unable to cope with the complex and changeable materials on the automobile assembly line. The skid conveyor, with its unique structural design and flexible adaptability, can achieve seamless docking with other automated equipment to realize automatic loading and unloading, positioning and assembly of materials, and has gradually become the mainstream conveying equipment on the automobile assembly line.

[0003] The skid conveyor achieves smooth and efficient transportation of automotive parts through rolling contact between the skid and the conveying track. The forward power of the skid is the friction between the skid and the conveying track, which pushes the skid forward. When the friction is less than the downward positive pressure of the automotive parts on the skid, slippage will occur. At the same time, the gap between the skid and the conveying track of the skid conveyor will increase due to long-term wear and tear, causing the skid conveyor to derail during operation.

[0004] In order to solve the above problems, we proposed an intelligent conveying device for automobile assembly line. Summary of the invention

[0005] In view of the problems existing in the prior art, the present invention provides an intelligent conveying device for an automobile assembly line to solve the technical problem mentioned in the background technology that when the skid conveyor transports heavy automobile parts, the skid may slip between the skid and the conveying track, and that the skid may derail after being used for a long time.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an intelligent conveying device for an automobile assembly line, comprising a conveying mechanism, which comprises a conveying frame, and a driving motor is fixedly installed on one side of one end of the conveying frame, a transmission rod is rotatably installed on the conveying frame, and a conveying roller and a sprocket are welded on the transmission rod, limit rings are arranged on both sides of the conveying roller, and a chain is arranged on the sprocket, and the transmission rods are distributed in a linear array along the conveying direction of the conveying frame, one end of the transmission rods in the linear array passes through the side of the conveying frame away from the driving motor, and a sprocket is fixedly installed on one end of the transmission rods in the linear array that passes through the side of the conveying frame away from the driving motor, and the sprocket and the chain are meshed and matched, and a sled mechanism comprises a sled assembly slidably installed on the conveying roller, a reset spring arranged on the sled assembly, and a support plate arranged on the reset spring, an adaptive friction force adjustment assembly is arranged in the sled assembly, and the adaptive friction force adjustment assembly corresponds to the limit rings on the surface and both sides of the conveying roller.

[0007] As a preferred solution of the intelligent conveying device of the automobile assembly line of the present invention, the sled assembly includes a slide bar slidably mounted on the top end of the conveying roller, and also includes a connecting plate arranged on one side of the slide bar.

[0008] As a preferred solution of the intelligent conveying device for automobile assembly line of the present invention, wherein: both sides of the top of the connecting plate are provided with return springs, and the other end of the return spring is fixedly connected to the bottom end of the supporting plate.

[0009] As a preferred solution of the intelligent conveying device for automobile assembly line of the present invention, the slide bar is provided with a receiving cavity which is through-opened, the top of the slide bar is provided with a movable groove which is connected with the receiving cavity.

[0010] As a preferred solution of the intelligent conveying device of the automobile assembly line of the present invention, the adaptive friction force adjustment component includes a tightening member arranged in the accommodating cavity, and a separating member arranged at the bottom end of the supporting plate and used for driving the tightening member to open.

[0011] As a preferred solution of the intelligent conveying device of the automobile assembly line of the present invention, the tightening member includes a first tightening block and a second tightening block arranged in the accommodating cavity, and the first tightening block and the second tightening block are movably matched with the interior of the accommodating cavity.

[0012] As a preferred solution of the intelligent conveying device of the automobile assembly line of the present invention, the separation piece includes a lower pressure block movably installed in the movable groove, and a separation block arranged at the bottom end of the lower pressure block, and the upper ends of the sides where the first tightening block and the second tightening block are close to each other are both chamfered.

[0013] As a preferred solution of the intelligent conveying device of the automobile assembly line of the present invention, friction blocks are arranged on both sides of the bottom end of the lower pressure block, a first active cavity is opened on the first tightening block, and a second active cavity is arranged on the second tightening block, and the two friction blocks are respectively inserted into the first active cavity and the second active cavity.

[0014] As a preferred solution of the intelligent conveying device of the automobile assembly line of the present invention, wherein: the first tightening block is provided with first spring grooves at both ends of a side close to the second tightening block, the second tightening block is provided with second spring grooves at both ends of a side close to the first tightening block, the first spring groove and the second spring groove are coaxial, and tension springs are arranged inside the first spring groove and the second spring groove.

[0015] As a preferred solution of the intelligent conveying device for automobile assembly line of the present invention, wherein: a groove is provided at the bottom end of the slide bar, and the groove is movably connected with the friction block.

[0016] Compared with the prior art, the present invention provides an intelligent conveying device for an automobile assembly line, which has the following beneficial effects: The present invention provides a separating piece and a tightening piece. When the automobile parts to be transported are placed on the top of the support plate, the pressure of the automobile parts acts on the support plate, thereby compressing the return spring and pushing the separating piece to push the first tightening block and the second tightening block in the tightening piece to both sides, thereby increasing the friction force, making it easier for the conveying roller and the limit ring to rotate and push the sled mechanism to move. This avoids the situation where the friction force is less than the driving force of the sled mechanism due to the excessive weight of the automobile parts, causing the conveying roller to slip when rotating, thereby affecting the normal conveying of the sled mechanism.

[0017] In the present invention, the resistance and tightening force of the first tightening block and the second tightening block on the limit ring is adaptively changed with the weight of the automobile parts to be transported. When the automobile parts are heavy, the tightening force is large, that is, the friction force is large. When the automobile parts are light, the tightening force is small, that is, the friction force is small. Therefore, during transportation, excessive wear between the first tightening block and the second tightening block and the side wall of the limit ring can be avoided.

[0018] In the present invention, the limiting ring is tightened by the first tightening block and the second tightening block, thereby preventing the slide mechanism from warping over the track. At the same time, when the limiting ring rotates, its driving force is decomposed into a horizontal forward conveying force and a downward pulling force, thereby improving the anti-derailing effect of the slide mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of the intelligent conveying device for the automobile assembly line.

[0020] Figure 2This is a schematic diagram of the slide mechanism structure of the intelligent conveying device of the automobile assembly line.

[0021] Figure 3 This is a schematic diagram of the structure of the skid assembly of the intelligent conveying device of the automobile assembly line.

[0022] Figure 4 This is a schematic diagram of the structure in which the tensioning parts and the separating parts of the intelligent conveying device of the automobile assembly line are located in the sliding rod.

[0023] Figure 5 This is a schematic diagram of the exploded structure of the support and separation parts of the intelligent conveying device of the automobile assembly line.

[0024] Figure 6 It is a schematic cross-sectional structure diagram of the positions of tension springs on the first tightening block and the second tightening block of the intelligent conveying device of the automobile assembly line.

[0025] Figure 7 This is a schematic diagram of the force structure of the slide mechanism when the conveying roller and the limit ring rotate in the intelligent conveying device of the automobile assembly line.

[0026] In the figure: 1. conveying mechanism; 101. conveying frame; 102. driving motor; 103. transmission rod; 104. conveying roller; 105. sprocket; 106. limiting ring; 107. chain; 2. sled mechanism; 3. sled assembly; 301. slide rod; 302. connecting plate; 303. accommodating cavity; 304. movable groove; 305. over groove; 4. reset spring; 5. support plate; 6. adaptive friction force adjustment assembly; 7. tightening member; 701. first tightening block; 702. second tightening block; 703. chamfer; 704. first movable cavity; 705. second movable cavity; 706. first spring groove; 707. second spring groove; 8. separating member; 801. pressing block; 802. separating block; 803. friction block; 9. tension spring. DETAILED DESCRIPTION

[0027] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application may be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0028] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0029] In the present invention, unless otherwise specified, the directions used, such as "up" and "down", usually refer to the directions shown in the drawings, or to the vertical, perpendicular or gravity directions; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.

[0030] See also Figures 1 to 7 An intelligent conveying device for an automobile assembly line includes a conveying mechanism 1, which includes a conveying frame 101, and a driving motor 102 is fixedly installed on one end of the conveying frame 101, a transmission rod 103 is rotatably installed on the conveying frame 101, and a conveying roller 104 and a sprocket 105 are welded on the transmission rod 103, both sides of the conveying roller 104 are provided with a limit ring 106, and the sprocket 105 is provided with a chain 107, such as Figure 1 As shown, the conveying rollers 104 are symmetrically arranged at the two ends of the transmission rod 103 inside the conveying frame 101, and the transmission rods 103 are distributed in a linear array along the conveying direction of the conveying frame 101. One end of the linear array transmission rod 103 passes through the side of the conveying frame 101 away from the driving motor 102, and one end of the linear array transmission rod 103 passing through the side of the conveying frame 101 away from the driving motor 102 is fixedly installed with a sprocket 105, the sprocket 105 and the chain 107 are meshed and matched, and one end of the transmission rod 103 on the conveying frame 101 close to the driving motor 102 is fixedly connected to the output shaft of the driving motor 102. The driving motor 102 rotates, driving the transmission rod 103 to rotate, thereby causing the conveying rollers 104 and the sprocket 105 on the transmission rod 103 to rotate, and the sprocket 105 rotates and meshes with the chain 107, thereby driving the other transmission rods 103 on the conveying frame 101 to rotate, thereby forming a progressive conveying drive on the conveying frame 101.

[0031] The sled mechanism 2 includes a sled assembly 3 slidably mounted on a conveying roller 104, a return spring 4 arranged on the sled assembly 3, and a support plate 5 arranged on the return spring 4. An adaptive friction force adjustment assembly 6 is arranged in the sled assembly 3, and the adaptive friction force adjustment assembly 6 corresponds to the surface of the conveying roller 104 and the limiting rings 106 on both sides. The sled assembly 3 is slidably mounted on the conveying roller 104, and the limiting rings 106 on both sides of the conveying roller 104 guide and limit the sled assembly 3 to prevent the sled assembly 3 from running off during transportation. The sled assembly 3 and the conveying roller 104 are detachably connected, and the sled assembly 3 can be removed from the conveying mechanism 1 by lifting and other actions. In the initial state, when nothing is placed on the support plate 5, the elastic force of the return spring 4 lifts the support plate 5, and the sled assembly 3 is placed on the conveying roller 10 4, the conveying force of the conveying mechanism 1 on the sled assembly 3 is the friction force generated by the self-weight of the sled assembly 3, and the adaptive friction force adjustment component 6 does not contact the side wall of the limit ring 106. When the automobile assembly line needs to convey automobile parts, the automobile parts are placed on the support plate 5, and the weight of the automobile parts will act on the reset spring 4, causing the reset spring 4 to be compressed, and the pressure of the automobile parts acts on the adaptive friction force adjustment component 6, so that the adaptive friction force adjustment component 6 and the limit ring 106 are tightly fitted. Therefore, the friction force at this time is based on the friction force generated by the self-weight of the sled assembly 3 and the automobile parts, and the friction between the adaptive friction force adjustment component 6 and the limit ring 106 is increased, thereby avoiding the situation where the friction force is less than the driving force required by the sled mechanism 2 for placing the automobile parts, causing the conveying roller 104 to slip.

[0032] The sled assembly 3 includes a slide bar 301 slidably mounted on the top of the conveying roller 104, and also includes a connecting plate 302 arranged on one side of the slide bar 301. The slide bar 301 is symmetrically provided with two connecting plates, such as Figure 2 and Figure 3 As shown, the two slide bars 301 correspond to the conveying rollers 104 on the transmission rod 103 respectively, are located between the limiting rings 106 on both sides of the conveying roller 104, and are adapted to slide. A plurality of connecting plates 302 are provided for connecting the two slide bars 301 to form a frame of the sled. Return springs 4 are provided on both sides of the top of the connecting plate 302, and the other end of the return spring 4 is fixedly connected to the bottom end of the support plate 5. By providing a plurality of return springs 4, the supporting force of the support plate 5 is improved, and it is avoided that the support plate 5 is over-pressed due to the random placement of an automobile accessory, causing the adaptive friction force adjustment component 6 to cling to the side wall of the limiting ring 106 and cause unnecessary wear. In addition, the support of the support plate 5 by the plurality of return springs 4 can also play a buffering role for the automobile accessories on the support plate 5, and it is avoided that the vibration of the equipment during transportation causes the vibration of the automobile accessories at the corners to collide with the support plate 5 and cause deformation.

[0033] A receiving cavity 303 is provided on the slide bar 301 , and the receiving cavity 303 is provided in a through-type manner, and its through-direction is horizontal (i.e., the length direction of the connecting plate 302 ). A movable groove 304 is provided on the top of the slide bar 301 , and the movable groove 304 is connected to the receiving cavity 303 .

[0034] The adaptive friction force adjustment assembly 6 includes a tightening member 7 disposed in the accommodating cavity 303 , and a separating member 8 disposed at the bottom end of the supporting plate 5 and used for driving the tightening member 7 to open.

[0035] The tightening member 7 includes a first tightening block 701 and a second tightening block 702 which are disposed in the accommodating cavity 303 , and the first tightening block 701 and the second tightening block 702 are movably matched with the interior of the accommodating cavity 303 .

[0036] The tightening member 7 is movably installed inside the accommodating cavity 303. When the automobile accessories are placed on the support plate 5, the weight of the automobile accessories acts on the reset spring 4, compressing the reset spring 4 and pushing the separation member 8 downward, thereby pushing the first tightening block 701 and the second tightening block 702 to both sides of the accommodating cavity 303, and then abutting against the limiting rings 106 on both sides of the conveying roller 104, thereby increasing the friction, improving the conveying efficiency, and avoiding slipping.

[0037] The length of the tightening member 7 is greater than the spacing between two adjacent conveying rollers 104, and transition slopes are provided at the corners at both ends of the first tightening block 701 and the second tightening block 702. The transition slope is used for when the tightening member 7 is transferred from one conveying roller 104 to another conveying roller 104. The stretched first tightening block 701 and the second tightening block 702 can enter the two limiting rings 106 on the conveying roller 104 through the transition slope, thereby avoiding the first tightening block 701 and the second tightening block 702 from protruding, resulting in jamming and failure to convey.

[0038] It should be noted that since the slide bar 301 is placed on the top of the conveying roller 104 and is matched with the two limit rings 106, under the push of the gravity of the automotive accessories, the first tightening block 701 and the second tightening block 702 are pushed out to the two sides of the accommodating cavity 303. It is not a pushing distance, but a thrust that makes the first tightening block 701 and the second tightening block 702 resist the limit ring 106 with different forces, thereby different friction forces with the limit ring 106, thereby realizing adaptive friction force adjustment.

[0039] The separator 8 includes a pressing block 801 movably installed in the movable groove 304 and a separating block 802 arranged at the bottom of the pressing block 801 . The upper ends of the first tightening block 701 and the second tightening block 702 , which are close to each other, are both provided with chamfers 703 .

[0040] Further, the separation block 802 is as follows Figure 5As shown, it is a triangle, and a chamfer 703 is set at the upper end of the side where the first tightening block 701 and the second tightening block 702 are close to each other. When the first tightening block 701 and the second tightening block 702 are fitted together, a triangular gap is formed, thereby cooperating with the triangular separation block 802. Therefore, when the support plate 5 is subjected to the pressure of the automobile accessories, it moves downward to push the pressing block 801, thereby driving the separation block 802 to insert into the triangular gap, pushing the first tightening block 701 and the second tightening block 702 to move to both sides to squeeze the limit ring 106.

[0041] Friction blocks 803 are provided on both sides of the bottom end of the lower pressure block 801, a first movable cavity 704 is opened on the first tightening block 701, and a second movable cavity 705 is provided on the second tightening block 702, and the two friction blocks 803 are respectively inserted into the first movable cavity 704 and the second movable cavity 705.

[0042] A slot 305 is formed at the bottom end of the slide bar 301 , and the slot 305 and the friction block 803 are movably connected.

[0043] The friction block 803 and the pressing block 801 are arranged in a U shape, and a rubber pad is arranged at the bottom of the friction block 803. When no automobile parts are placed on the support plate 5, the rubber pad at the bottom of the friction block 803 is flush with the bottom end of the slide bar 301. At this time, the transportation will not cause wear to the rubber pad. When automobile parts are placed on the support plate 5, the pressing block 801 pushes the friction block 803 to be squeezed on the conveying roller 104, thereby increasing the friction force.

[0044] The first tightening block 701 is provided with a first spring groove 706 at both ends of a side close to the second tightening block 702, and the second tightening block 702 is provided with a second spring groove 707 at both ends of a side close to the first tightening block 701. The first spring groove 706 and the second spring groove 707 are coaxial, and tension springs 9 are arranged inside the first spring groove 706 and the second spring groove 707.

[0045] Although in theory no displacement will occur when the first tightening block 701 and the second tightening block 702 contact the limit ring 106 to both sides, only the automobile parts are pressed down, generating thrust, thereby increasing the friction. However, after long-term transportation and use, the friction between the two sides of the slide bar 301 and the side walls of the limit ring 106 causes wear, thereby increasing the previous adaptation gap. Therefore, in the subsequent use process, the first tightening block 701 and the second tightening block 702 are pushed to both sides, which will cause a short-distance displacement, thereby contacting the limit ring 106. Then, when the automobile parts are unloaded later, the first tightening block 701 and the second tightening block 702 will return to the accommodating cavity 303 under the action of the tension spring 9.

[0046] Preferably, if Figure 7As shown, after the automobile accessories are placed, the sled mechanism 2 is pushed and tightened to both sides by the first tightening block 701 and the second tightening block 702, which not only increases the friction force and reduces the occurrence of slipping. When the conveying roller 104 rotates, the tightening force can not only provide a forward conveying force to the sled mechanism 2, but also a downward pulling force, thereby avoiding the derailment of the sled mechanism 2 during the conveying process.

[0047] It should be explained why a tooth groove is not provided at the bottom end of the slide bar 301, and then the conveying roller 104 is set as a gear, and the gear tooth groove is meshed to avoid slipping. Because the slide conveyor is a progressive conveying method through the rotation of multiple conveying rollers 104, if the gear tooth groove is meshed, it will cause the slide mechanism 2 to be placed on the conveying mechanism 1. It is difficult for each gear to exactly mesh with the tooth groove on the slide bar 301, so it needs to be adjusted, which will affect the work efficiency.

[0048] In all the schemes mentioned above, the connection between two parts can be selected according to actual conditions by welding, bolt and nut matching connection, bolt or screw connection or other well-known connection methods, which will not be described one by one here. In the above, all fixed connections are preferably welded. Although the embodiments of the present invention have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. An intelligent conveying device for an automobile assembly line, characterized by: include, A conveying mechanism (1), comprising a conveying frame (101), wherein a driving motor (102) is fixedly mounted on one end of the conveying frame (101), a transmission rod (103) is rotatably mounted on the conveying frame (101), and a conveying roller (104) and a sprocket (105) are welded to the transmission rod (103), both sides of the conveying roller (104) are provided with a limit ring (106), and a chain (107) is provided on the sprocket (105); The transmission rods (103) are distributed in a linear array along the conveying direction of the conveying frame (101), one end of the transmission rods (103) in the linear array penetrates a side of the conveying frame (101) away from the driving motor (102), and one end of the transmission rods (103) in the linear array that penetrates a side of the conveying frame (101) away from the driving motor (102) is fixedly mounted with a sprocket (105), and the sprocket (105) and the chain (107) are meshed and matched; A sled mechanism (2), comprising a sled assembly (3) slidably mounted on the conveying roller (104), a return spring (4) arranged on the sled assembly (3), and a support plate (5) arranged on the return spring (4); An adaptive friction force adjustment component (6) is provided in the sled component (3), and the adaptive friction force adjustment component (6) corresponds to the surface of the conveying roller (104) and the limiting rings (106) on both sides.

2. According to claim 1, the intelligent conveying device for automobile assembly line is characterized in that: The slide assembly (3) comprises a slide bar (301) slidably mounted on the top end of the conveying roller (104), and also comprises a connecting plate (302) arranged on one side of the slide bar (301).

3. According to claim 2, the intelligent conveying device for automobile assembly line is characterized in that: Return springs (4) are provided on both sides of the top end of the connection plate (302), and the other end of the return spring (4) is fixedly connected to the bottom end of the support plate (5).

4. The intelligent conveying device for automobile assembly line according to claim 3 is characterized in that: The sliding rod (301) is provided with a receiving cavity (303), and the receiving cavity (303) is opened in a through-type manner; A movable groove (304) is provided at the top end of the sliding rod (301), and the movable groove (304) is communicated with the accommodating cavity (303).

5. The intelligent conveying device for automobile assembly line according to claim 4 is characterized in that: The adaptive friction force adjustment component (6) comprises a tightening member (7) arranged in the accommodating cavity (303), and a separating member (8) arranged at the bottom end of the supporting plate (5) and used for driving the tightening member (7) to open.

6. The intelligent conveying device for automobile assembly line according to claim 5 is characterized in that: The tightening member (7) comprises a first tightening block (701) and a second tightening block (702) which are arranged in the accommodating cavity (303), and the first tightening block (701) and the second tightening block (702) are movably matched with the interior of the accommodating cavity (303).

7. The intelligent conveying device for automobile assembly line according to claim 6 is characterized in that: The separation member (8) comprises a lower pressing block (801) movably mounted in the movable groove (304), and a separation block (802) arranged at the bottom end of the lower pressing block (801); The upper ends of the first tightening block (701) and the second tightening block (702) on a side close to each other are both provided with a chamfer (703).

8. The intelligent conveying device for automobile assembly line according to claim 7 is characterized in that: Friction blocks (803) are provided on both sides of the bottom end of the lower pressing block (801); The first tightening block (701) is provided with a first movable cavity (704), the second tightening block (702) is provided with a second movable cavity (705), and the two friction blocks (803) are respectively inserted into the first movable cavity (704) and the second movable cavity (705).

9. The intelligent conveying device for automobile assembly line according to claim 8 is characterized in that: Both ends of the first tightening block (701) on a side close to the second tightening block (702) are provided with first spring grooves (706), and both ends of the second tightening block (702) on a side close to the first tightening block (701) are provided with second spring grooves (707); The first spring slot (706) and the second spring slot (707) are coaxial, and tension springs (9) are arranged inside the first spring slot (706) and the second spring slot (707).

10. An intelligent conveying device for automobile assembly line according to claim 8 or 9, characterized in that: A groove (305) is provided at the bottom end of the slide bar (301), and the groove (305) and the friction block (803) are movably plugged into each other.

Images