Annular conveying assembly line

Abstract

The utility model discloses an annular conveying assembly line which comprises a chain driving part, a supporting track and sliding table assemblies, the supporting track and the chain driving part are arranged in parallel, the supporting track is provided with a plurality of sliding table assemblies, and the sliding table assemblies are connected with the chain driving part and driven by the chain driving part to move on the supporting track. The sliding table assembly is connected with the chain driving part through a movable connecting joint, and the movable connecting joint compensates for displacement difference caused by distance change or radian change between the sliding table assembly and the chain driving part. According to the annular conveying assembly line, the two movable joints are formed through the movable connecting joints, certain flexibility is achieved between the connecting portions of the chain and the sliding table assembly, and therefore the problems that when the chain pulls the sliding table assembly to move, due to the change of the distance, jamming or radian change is caused in the moving process are effectively solved; therefore, the power loss in the transmission process can be effectively reduced.

Description

Technical Field

[0001] This utility model relates to the field of automated production equipment technology, specifically to a circular conveyor assembly line. Background Technology

[0002] With the continuous development of industrial automation technology, most enterprises use assembly lines to transfer workpieces in order to improve production and transportation efficiency. Among them, the conveyor line, as a key piece of equipment in the assembly line, plays the role of supporting and transferring workpieces.

[0003] However, in our everyday circular conveyor lines, if the structure is driven by a chain, a slide table is usually set parallel to the chain. The slide table carries the workpiece to be processed and is connected to the chain. Driven by the chain, the slide table moves between various workstations for processing. The connection between the chain and the slide table is usually a fixed rigid connection to transmit the driving force. This structure can be applied to linear conveyor lines. However, when this rigid connection is applied to a circular conveyor line with changing direction, it will cause some problems. For example, when the slide table moves in a straight line or makes an arc-shaped movement, the distance between the slide table and the chain will have a certain lateral offset. In addition, when the slide table moves to the left and right ends, it needs to turn. During the arc-shaped movement, the rigid connection cannot adjust to the arc shape, resulting in insufficient freedom of the rigid connection. This may cause the chain to become tense and jammed, increasing the power loss of the transmission system.

[0004] In view of the above, it is necessary to propose a circular conveyor line to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to overcome the defects in the existing technology and provide a circular conveyor line.

[0006] To achieve the above objectives, the technical solution of this utility model is as follows: A circular conveyor line includes a chain drive unit, a support rail, and a slide assembly. The support rail and the chain drive unit are arranged side by side. A plurality of slide assemblies are provided on the support rail. The slide assemblies are connected to and driven by the chain drive unit to move on the support rail. The slide assemblies and the chain drive unit are connected by a movable connecting joint. The movable connecting joint compensates for the displacement difference caused by changes in the distance or curvature between the slide assemblies and the chain drive unit.

[0007] Furthermore, the chain drive unit includes a first sprocket, a second sprocket, and a transmission chain. The transmission chain is sleeved on the outside of the first sprocket and the second sprocket, so that the transmission chain forms a ring conveyor chain. A support rail is provided on the outer periphery of the transmission chain, and the support rail is equidistantly expanded on the outside of the transmission chain, and a transmission gap is formed between the two.

[0008] Furthermore, the transmission chain is a double-layer transmission chain, and the slide assembly includes an upper slide plate. Four clamping track wheels are provided on the lower side of the upper slide plate. Two clamping track wheels are provided on the inner and outer sides of the support track, and the two clamping track wheels clamp and roll on the support track.

[0009] Furthermore, the movable connecting joint includes a chain connecting seat and a slide connecting rod. One end of the slide connecting rod is a first movable joint formed by a hinged upper slide plate with a limited degree of rotational freedom. This end has a rotating column, and a rotational limiting block is provided at the lower end of the rotating column. The upper slide plate is provided with a limiting top block that cooperates with the rotational limiting block. The two limiting top blocks are disposed opposite each other on both sides of the rotational limiting block and a rotational gap is provided between them and the side of the rotational limiting block. The other end of the slide connecting rod forms a sliding connection end with the chain connecting seat. The chain connecting seat has a sliding groove for sliding connection of the sliding connection end. The sliding groove and the sliding connection end constitute a second movable joint. The setting direction of the sliding groove is perpendicular to the base of the chain connecting seat.

[0010] Furthermore, the chain connecting seat has end plates at both ends, and opposing rods are screwed onto the end plates respectively. The two opposing rods are close to each other to form a sliding groove, and the sliding connecting end is inserted between the two opposing rods; the movable connecting joint is provided in two in each slide assembly.

[0011] Furthermore, the groove portion is a waist hole formed on the chain connector, and the sliding connection end is inserted into the waist hole.

[0012] Furthermore, the bottom of the slide assembly is provided with a positioning slot, which faces outward. A plug is provided at the processing station to be inserted into the positioning slot for precise positioning. The plug is inserted into the positioning slot and locks the position of the slide assembly after the slide assembly moves into the station.

[0013] The advantages and beneficial effects of this utility model are as follows: This utility model provides a ring-shaped conveyor line that forms two movable joints through a movable connecting joint, giving the connection between the chain and the slide assembly a certain degree of flexibility. This effectively compensates for problems such as jamming or curvature changes caused by changes in spacing during the movement of the chain pulling the slide assembly, thereby effectively reducing power loss during transmission. After the slide assembly moves into the workstation, it connects with the slot... Attached Figure Description

[0014] Figure 1 This is an isometric view of a ring conveyor assembly line according to this utility model;

[0015] Figure 2 This is a schematic diagram showing the arrangement of the positioning slot and insert block in the annular conveyor line of this utility model;

[0016] Figure 3This is an exploded view of the movable connecting joint in the annular conveyor assembly line of this utility model;

[0017] Figure 4 This is a schematic diagram of the bottom structure of the slide assembly in the annular conveyor line of this utility model;

[0018] Figure 5 This is a schematic diagram of the chain connector in the circular conveyor line of this utility model;

[0019] In the diagram: 1. Chain drive unit; 2. Support rail; 3. Slide assembly; 4. Movable connecting joint; 5. First sprocket; 6. Second sprocket; 7. Transmission chain; 8. Upper slide plate; 9. Clamping track wheel; 10. Chain connecting seat; 11. Slide connecting rod; 12. Rotating column; 13. Corner limiting block; 14. Limiting top block; 15. Rotation clearance; 16. Sliding connecting end; 17. Slide groove; 18. First movable joint; 19. Second movable joint; 20. End plate; 21. Top rod; 22. Waist hole; 23. Positioning slot; 24. Insert block. Detailed Implementation

[0020] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solution of this utility model and should not be construed as limiting the scope of protection of this utility model.

[0021] A circular conveyor line, such as Figure 1-5 As shown, it includes a chain drive unit 1, a support rail 2, and a slide assembly 3, specifically, as follows: Figure 1 As shown, the chain drive unit 1 includes a first sprocket 5, a second sprocket 6, and a transmission chain 7. The transmission chain 7 is sleeved around the first sprocket 5 and the second sprocket 6. In use, one of the sprockets can be configured as the driving sprocket and the other as the driven sprocket, or both sprockets can be configured as driving sprockets. In this case, the two sprockets need to rotate synchronously. When the sprockets rotate, they drive the transmission chain 7 on the outer ring to rotate, so that the transmission chain 7 forms a ring conveyor chain. The outer periphery of the transmission chain 7 is provided with a support rail 2, which is equidistantly extended on the outside of the transmission chain 7, and a transmission gap is formed between them. Slide assembly 3 is equally spaced on the support rail 2. The slide assembly 3 is connected to the chain through a movable joint. In this way, the transmission chain 7 drives the surrounding slide assembly 3 to move circumferentially, thereby moving its position between different workstations. Furthermore, the transmission chain 7 is a double-layer transmission chain, which can increase the rigidity of the chain. Figure 2 , 3As shown, the slide assembly 3 includes an upper slide plate 8, with four clamping track wheels 9 on the lower side of the upper slide plate 8. Two clamping track wheels are located on each of the inner and outer sides of the support rail 2, and the two clamping track wheels 9 clamp and roll on the support rail 2. The outer circumference of the clamping rollers has V-shaped grooves, and the corresponding support rail 2 has outwardly protruding ridges corresponding to the V-shaped grooves. During installation, the V-shaped grooves of the clamping track wheels 9 engage with the ridges, thus allowing the slide assembly 3 to move in the direction of the support rail and maintaining the height position of the slide assembly 3. The support rail 2 and the chain drive unit 1 are arranged side-by-side, forming a configuration as shown in the diagram. Figure 1 The elliptical track shown has parallel sides on the outer sides that can be used to arrange processing stations. The support track 2 is provided with several slide table assemblies 3. The spacing of the slide table assemblies 3 is adapted to the spacing of the processing stations. The slide table assemblies 3 are connected to the chain drive unit 1 and driven by it to move on the support track 2, which can drive the workpiece fixed on the slide table assemblies 3 to move between the stations.

[0022] The slide assembly 3 and the chain drive unit 1 are connected by a movable connecting joint 4, which compensates for the displacement difference caused by the change in the distance or curvature between the slide assembly 3 and the chain drive unit 1.

[0023] Specifically, the movable connecting joint 4 includes a chain connecting seat 10 and a slide connecting rod 11, such as... Figure 3 As shown, one end of the sliding table connecting rod 11 is a first movable joint 18 formed by a limited rotational degree of freedom hinged to the upper sliding plate 8. This end has a rotating column 12, and a rotational limiting block 13 is provided at the lower end of the rotating column 12. The upper sliding plate 8 is provided with a limiting top block 14 that cooperates with the rotational limiting block 13. The two limiting top blocks 14 are positioned opposite each other on both sides of the rotational limiting block and a rotational gap 15 is provided between them and the side of the rotational limiting block 13. Figure 4As shown, when the slide link 11 is pulled by the chain, it will deflect. In order to avoid its deflection angle being too large, in this embodiment, the limiting top blocks 14 at both ends are set at a certain distance on both sides of the corner limiting block 13. This distance is the rotation gap 15. The setting of the rotation gap 15 allows the slide link 11 to deflect freely within a certain angle range, thereby compensating for the angle when the slide assembly 3 moves to the sprocket and makes arc-shaped movements, thereby improving flexibility and limiting the rotation range of the angle to improve the efficiency of power transmission. The other end of the slide connecting rod 11 forms a sliding connection end 16 with the chain connecting seat 10. The chain connecting seat 10 has a groove 17 for sliding connection of the sliding connection end 16. The groove 17 and the sliding connection end 16 form a second movable joint 19. The direction of the groove 17 is perpendicular to the base of the chain connecting seat 10. The groove 17 of the second movable joint 19 can compensate for the slight change in the distance between the slide assembly 3 and the chain, so that it can well cope with the slight change in the distance between the slide assembly 3 and the chain in both linear and arc movements; thereby avoiding the decrease in transmission efficiency caused by jamming.

[0024] As one example, such as Figure 3 As shown, the chain connecting seat 10 has end plates 20 at both ends, and opposing rods 21 are screwed onto the end plates 20 respectively. The two opposing rods 21 are close to each other to form a sliding groove 17, and the sliding connection end 16 is inserted between the two opposing rods 21. The movable connecting joint 4 is provided in two in each slide assembly 3. The two opposing rods 21 can be easily rotated to change the width of the sliding groove 17, so as to maintain a suitable clearance between the sliding groove 17 and the sliding connection end 16.

[0025] As another embodiment, such as Figure 5 As shown, the groove portion 17 is a waist hole 22 formed on the chain connecting seat 10, and the sliding connecting end 16 is inserted into the waist hole 22. In this embodiment, the groove portion 17 is set as a waist hole 22 with a fixed shape, which can achieve the same effect as the aforementioned embodiment and maintain a good sliding connection effect.

[0026] Furthermore, the bottom of the slide assembly 3 is also provided with a positioning slot 23, which faces outwards, such as... Figure 1 , 2As shown, a locking block 24 for precise positioning is provided in the machining station and inserted into the positioning slot 23. The locking block 24 is inserted into the positioning slot 23 and locks the position of the slide assembly 3 after it moves into the station. When the chain drive unit 1 runs for a long time, due to accumulated errors, the stopping position of the slide assembly 3 may deviate from the station position, thus preventing automatic machining at the station. In this embodiment, when the chain-controlled slide assembly 3 stops at a general position in the station, the locking block 24 in the fixed position within the station is pushed out and inserted into the corresponding positioning slot 23, thereby correcting the stopping position of the slide assembly 3. It can be understood that, as... Figure 2 As shown, the two ends of the insert 24 should be chamfered. When inserted, the chamfered part is inserted into the positioning slot 23 first. As the insertion goes deeper, the chamfered edge corrects the position of the slide assembly 3.

[0027] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. An endless conveyor line, characterized in that, The utility model provides chain drive part (1), support rail (2), sliding table subassembly (3), support rail (2) with chain drive part (1) parallelly arranged, be equipped with a plurality of sliding table subassembly (3) on support rail (2), sliding table subassembly (3) is connected with chain drive part (1) and is driven and removes on support rail (2) by it, sliding table subassembly (3) with chain drive part (1) between through movable connection joint (4) is connected, movable connection joint (4) compensates the displacement difference caused by the spacing change or the radian change between sliding table subassembly (3) and chain drive part (1).

2. An endless conveyor line according to claim 1, characterized in that The chain drive part (1) includes a first sprocket (5), a second sprocket (6) and a transmission chain (7). The first sprocket (5) and the second sprocket (6) are externally sleeved with the transmission chain (7) to form a ring-shaped conveying chain. The transmission chain (7) is provided with the support rail (2) on the outer periphery to expand the support rail (2) on the outside of the transmission chain (7) at equal intervals, and a transmission spacing is formed between the support rail (2) and the transmission chain (7).

3. An endless conveyor line according to claim 2, characterized in that The transmission chain (7) is a double-layer transmission chain. The sliding table subassembly (3) includes an upper sliding plate (8). Four clamping track wheels (9) are arranged on the lower side of the upper sliding plate (8). Two clamping track wheels (9) are arranged on the inner and outer sides of the support rail (2) respectively, and the two clamping track wheels (9) are clamped and rolled on the support rail (2).

4. An endless conveyor line according to claim 3, characterized in that The movable connection joint (4) includes a chain connecting seat (10) and a sliding table connecting rod (11). One end of the sliding table connecting rod (11) is a first movable joint (18) hingedly connected to the upper sliding plate (8) to limit the rotation angle. The end has a rotating column (12). A rotation angle limiting block (13) is arranged at the lower end of the rotating column (12). The upper sliding plate (8) is internally provided with limiting top blocks (14) matched with the rotation angle limiting block (13). The two limiting top blocks (14) are oppositely arranged on the two sides of the rotation angle limiting block (13) and are provided with a rotating gap (15) between the side surface of the rotation angle limiting block (13). The other end of the sliding table connecting rod (11) forms a sliding connection end (16) of the chain connecting seat (10). The chain connecting seat (10) is internally formed with a sliding groove part (17) for sliding connection of the sliding connection end (16). The sliding groove part (17) and the sliding connection end (16) form a second movable joint (19). The setting direction of the sliding groove part (17) is perpendicular to the base of the chain connecting seat (10).

5. An endless conveyor line according to claim 4, characterized in that The chain connecting seat (10) is formed with end vertical plates (20) at both ends. The end vertical plates (20) are respectively screwed with opposite jacking rod members (21). The two opposite jacking rod members (21) are formed with the sliding groove part (17) at one end close to each other. The sliding connection end (16) is arranged between the two opposite jacking rod members (21). The movable connection joint (4) is provided with two in each sliding table subassembly (3).

6. An endless conveyor line according to claim 4, characterized in that The sliding groove part (17) is a waist hole (22) formed in the chain connecting seat (10). The sliding connection end (16) is arranged in the waist hole (22).

7. An endless conveyor line according to claim 1, characterized in that The bottom of the slide table assembly (3) is also provided with a positioning slot (23) which faces the outside, and an insertion block (24) for accurate positioning is arranged in the processing station and inserted into the positioning slot (23), the insertion block (24) is inserted into the positioning slot (23) and locks the position of the slide table assembly (3) after the slide table assembly (3) moves into the station.

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