Circulating transmission equipment with rail type carrying table device

Abstract

The utility model discloses circulating transmission equipment with a rail type carrying platform device, which comprises a front end conveying group, a rear end conveying group and a middle conveying group, the middle conveying group is provided with an ascending conveying line and a descending conveying line, and the ascending conveying line and the descending conveying line are connected through a lifting type conveying mechanism of the front end conveying group. The first conveying lines at the front end and the rear end are alternately connected with the uplink conveying line and the downlink conveying line respectively. The platform deck jig is driven by friction of all the conveying lines, and the positioning device is used for accurate positioning. The system is provided with a control system for controlling the conveying lines and the positioning devices to act. The circular conveying device solves the problems that traditional conveying equipment is difficult in circular conveying and poor in stability and positioning accuracy, efficient, stable and accurate circular conveying of materials is achieved, and production efficiency is remarkably improved. According to the circulating transmission equipment, due to the design of the lifting type conveying mechanism, the first conveying line can be flexibly connected with the ascending conveying line and the descending conveying line, and smooth transition of materials among different conveying lines is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to material conveying equipment technical field, concretely relates to a kind of cyclic conveying equipment and system with track type carrier device. BACKGROUND

[0002] In modern industrial production, efficient and accurate transmission of materials is a key link to ensure smooth production process and improve production efficiency. Traditional conveying equipment often has many shortcomings when facing complex production requirements. For example, common straight-line conveyor belts cannot achieve cyclic conveying of materials and cannot meet the process requirements of some processes that require multiple processing or detection. Some simple cyclic conveying devices have poor stability and low positioning accuracy during operation, which can cause materials to deviate or fall during transmission, affecting production quality and efficiency. In addition, existing conveying equipment often has problems such as smooth connection and poor speed matching during connection between different conveying lines, further restricting the improvement of overall transmission performance.

[0003] Therefore, it is of great practical significance to develop an equipment that can overcome the above-mentioned defects and achieve efficient, stable and accurate cyclic transmission. SUMMARY

[0004] To overcome the shortcomings of the prior art, the utility model solves the technical problem by providing a cyclic conveying equipment with a track type carrier device to achieve efficient, stable and accurate cyclic transmission of materials and meet the needs of complex production processes.

[0005] To solve the above technical problems, the utility model realizes the following scheme: the utility model provides a cyclic conveying equipment with a track type carrier device, which comprises:

[0006] A front-end conveying group has a first housing, a lifting type conveying mechanism arranged in the first housing, the lifting type conveying mechanism comprising a lifting part, a first conveying line drivingly connected with the lifting part and capable of being driven by the lifting part to perform lifting action;

[0007] A rear-end conveying group has the same structure as the front-end conveying group;

[0008] At least one intermediate conveying group is arranged between the front-end conveying group and the rear-end conveying group and is sequentially spliced to form a straight-line splicing structure, the intermediate conveying group has a second housing, an upward conveying line arranged in the second housing and a downward conveying line arranged in the second housing, and the first conveying line is alternately connected with the upward conveying line and the downward conveying line through lifting;

[0009] At least one set of carrier jigs, each of which can be linearly moved by friction drive action of the first conveying line, the upward conveying line and the downward conveying line;

[0010] A plurality of sets of positioning devices, each of which has a clamping mechanism for fixing and releasing the carrier jigs, and each of which is provided with the positioning device at a node position of the first conveying line and at least one node position of the upward conveying line.

[0011] Further, the lifting part comprises:

[0012] A stand, one side of which is provided with double-row guide rails in the Z-axis direction;

[0013] A Z-axis movable part slidingly connected to the double-row guide rails, and the first conveying line is fixed to the Z-axis movable part;

[0014] A transmission mechanism driving the Z-axis movable part to perform lifting action;

[0015] A first power part drivingly connected to the transmission mechanism.

[0016] Further, the transmission mechanism is a lead screw module provided in the Z-axis direction, which has a screw rod rotatably mounted on the stand and a nut threadedly connected to the screw rod, and the nut is fixedly connected to the Z-axis movable part;

[0017] The power source of the first power part is a first servo motor, which is drivingly connected to a first driving wheel;

[0018] The driven end of the first power part is a first driven wheel, which is connected to one end of the screw rod and has a first belt sleeved therebetween and the first driving wheel.

[0019] Further, the first conveying line comprises:

[0020] A conveying frame fixedly connected to the Z-axis movable part, which has a linear guide rail frame;

[0021] A first linear guide rail mounted on the upper end surface of the linear guide rail frame;

[0022] A first conveyor belt laterally mounted on the linear guide rail frame;

[0023] A second power part drivingly connected to the first conveyor belt.

[0024] Further, the first conveyor belt comprises first pulleys rotatably mounted on the front and rear ends of the linear guide rail frame and a second belt sleeved on the two first pulleys;

[0025] The second power unit comprises a second servo motor mounted on the conveying frame, a second driving wheel arranged on a driving shaft of the second servo motor, and the second belt is sleeved on the second driving wheel through the opposite sides of the two first tensioning wheels.

[0026] Further, the uplink conveying line and the downlink conveying line have the same structure, which comprises:

[0027] An uplink rail frame;

[0028] An uplink linear guide rail fixed to the upper end surface of the uplink rail frame;

[0029] A second conveying belt laterally mounted on the uplink rail frame;

[0030] A third power unit in driving connection with the second conveying belt.

[0031] Further, the second conveying belt comprises two second belt wheels rotatably mounted on the front and rear ends of the uplink rail frame and a third belt sleeved on the two second belt wheels;

[0032] The third power unit comprises a third servo motor mounted on the uplink rail frame, a third driving wheel arranged on a driving shaft of the third servo motor, and the third belt is sleeved on the third driving wheel through the opposite sides of the two second tensioning wheels.

[0033] Further, the stage fixture comprises:

[0034] A base plate;

[0035] A plurality of sliding blocks mounted on the lower surface of the base plate, the slot lines of the plurality of sliding blocks are coaxial, and the ball bearings are arranged in the slot lines;

[0036] A positioning rod laterally mounted on the base plate;

[0037] A pressing plate assembly mounted on the lower surface of the base plate and parallel to the plurality of sliding blocks in the length direction of the pressing plate assembly.

[0038] Further, the pressing plate assembly comprises a pressing plate, a lower pressing elastic block, a plurality of guide assemblies, and a plurality of springs;

[0039] The pressing plate is provided with a plurality of through holes penetrating through both surfaces and a plurality of spring accommodating holes penetrating through both surfaces;

[0040] The lower pressing elastic block is provided with a plurality of screw holes one-to-one arranged with the through holes and a plurality of blind holes one-to-one arranged with the spring accommodating holes;

[0041] The base plate is provided with a stepped hole matched with the through hole;

[0042] One end of the spring abuts against the blind hole, and the other end of the spring enters the spring accommodating hole;

[0043] The guide assembly comprises a guide column and a linear bearing arranged in the through hole, the threaded end of the guide column is fixed with the screw hole of the lower pressing elastic block after passing through the stepped hole and the linear bearing in sequence, and the cap end of the guide column is limited by the step of the stepped hole.

[0044] The lower pressing elastic block is an elastic member, and the surface away from the pressing plate is provided with a concave-convex pattern capable of increasing friction.

[0045] Further, the positioning device comprises:

[0046] A vertical plate;

[0047] A blocking cylinder assembly is arranged on the vertical plate, and the blocking cylinder assembly comprises a vertically arranged blocking cylinder, a vertical guide rail arranged on the vertical plate and a blocking block slidingly connected to the vertical guide rail, and the driving shaft of the blocking cylinder is connected to the blocking block.

[0048] A clamping cylinder assembly is arranged on the vertical plate, and the clamping cylinder assembly comprises an obliquely arranged clamping cylinder, an obliquely arranged inclined guide rail and a clamping block slidingly connected to the inclined guide rail, and the driving shaft of the clamping cylinder is connected to the clamping block, the clamping surface of the clamping block can move to the side surface of the blocking block after the blocking block rises, and the clamping surface of the clamping block is parallel to the side surface of the blocking block.

[0049] Compared with the prior art, the utility model has the beneficial effects that:

[0050] 1. The circulating conveying equipment is provided with a splicing structure of a front end conveying group, a rear end conveying group and a middle conveying group, and through the uplink conveying line and the downlink conveying line of the middle conveying group and the liftable conveying lines at both ends, the circulating conveying of materials is realized, the demand for multiple processing or detection of materials in complex production processes is met, and the production efficiency is improved.

[0051] 2. The circulating conveying equipment is provided with a lifting type conveying mechanism, so that the first conveying line can be connected with the uplink conveying line and the downlink conveying line flexibly, and the smoothness of the transition of materials between different conveying lines is ensured.

[0052] 3. The carrier jig on the circulating conveying equipment is matched with the linear guide rail through the ball in the sliding block, can effectively adapt to different track shapes, the friction between the carrier jig and the conveying line is increased through the arrangement of the pressing plate assembly, the stability of the carrier jig in the conveying process is ensured, and the occurrence of material deviation, falling and the like is reduced.

[0053] 4. The positioning device on the circulating conveying equipment can accurately position the carrier fixture, improves the accuracy of material conveying, and meets the production process with high machining precision requirements.

[0054] 5. The circulating conveying equipment and system have reasonable structure design, stable and reliable operation, high practicability and popularization value. BRIEF DESCRIPTION OF DRAWINGS

[0055] Figure 1 It is a whole structure diagram of the circulating conveying equipment.

[0056] Figure 2 It is a structure diagram of the circulating conveying equipment after removing the shell.

[0057] Figure 3 It is an installation structure diagram of the lifting part and the first conveying line.

[0058] Figure 4 It is a structure diagram of the uplink conveying line and the downlink conveying line of the intermediate conveying group.

[0059] Figure 5 It is an assembly structure diagram of the carrier fixture.

[0060] Figure 6 It is an exploded view of the carrier fixture.

[0061] Figure 7 It is Figure 6 the enlarged view of A part.

[0062] Figure 8 It is a structure diagram of the positioning device.

[0063] In the drawings, the marks are: the front end conveying group 100, the intermediate conveying group 200, the rear end conveying group 300;

[0064] The lifting type conveying mechanism 2, the carrier fixture 3, the positioning device 5, the spring 8, the uplink conveying line 11, the downlink conveying line 12, the lifting part 21, the first conveying line 22, the base plate 31, the positioning rod 32, the downward pressing elastic block 33, the pressing plate 34, the sliding block 35, the linear bearing 36, the guide column 37, the pressing plate assembly 39, the clamping cylinder 51, the vertical plate 52, the clamping block 53, the blocking block 54, the blocking cylinder 55;

[0065] The uplink rail frame 111, the second conveying belt 112, the uplink linear guide rail 113, the second tensioning wheel 114, the third driving wheel 116, the first servo motor 211, the first driven wheel 212, the screw module 213, the double-row guide rail 214, the vertical frame 215, the first conveying belt 221, the first linear guide rail 222, the conveying frame 223, the second driving wheel 224, the first tensioning wheel 225, the concave-convex pattern 331. DETAILED DESCRIPTION

[0066] The technical solutions in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model, so that the advantages and characteristics of the utility model can be more easily understood by those skilled in the art, and the protection scope of the utility model can be more clearly and definitely defined. Obviously, the described embodiments of the utility model are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0067] In addition, the technical features involved in different embodiments of the utility model described below can be combined with each other as long as there is no conflict between them.

[0068] Embodiment 1: The specific structure of the utility model is as follows:

[0069] Please refer to the drawings Figures 1-8 The utility model discloses a circulating transmission equipment with track type loading table device, which comprises a front end conveying group 100, a rear end conveying group 300, at least one middle conveying group 200, at least one loading table jig 3 and a plurality of positioning devices 5.

[0070] The front end conveying group 100 is provided with a first machine shell and a lifting type conveying mechanism 2 arranged in the first machine shell.

[0071] The rear end conveying group 300 is the same in structure as the front end conveying group 100.

[0072] The at least one middle conveying group 200 is arranged between the front end conveying group 100 and the rear end conveying group 300 and is sequentially spliced to form a straight line type splicing structure.

[0073] The at least one loading table jig 3 can be driven by the first conveying line 22, the upward conveying line 11 and the downward conveying line 12 to move linearly through friction.

[0074] The positioning device 5 has a clamping mechanism for fixing and releasing the carrier jig 3. One node position of the first conveying line 22 and at least one node position of the upward conveying line 11 are provided with the positioning device 5.

[0075] For example, Figure 1 For example, Figure 1 The front-end conveying group 100, the middle conveying group 200 and the rear-end conveying group 300 are sequentially connected. The lifting part 21 of the front-end conveying group 100 and the lifting part 21 of the rear-end conveying group 300 drive the respective first conveying lines 22 to ascend and descend. The first conveying line 22 of the front-end conveying group 100 is connected to the beginning of the upward conveying line 11 and the end of the downward conveying line 12. The first conveying line 22 of the rear-end conveying group 300 is connected to the end of the upward conveying line 11 and the beginning of the downward conveying line 12.

[0076] When the first conveying line 22 of the front end is connected to the downward conveying line 12, the first conveying line 22 of the front end and the downward conveying line 12 convey in the same direction and to the left. The downward conveying line 12 sends the carrier jig 3 flowing back to the first conveying line 22 of the front end. After the first conveying line 22 of the front end receives the carrier jig 3, the carrier jig 3 is fixed by the positioning device 5 of the front end. At this time, the lifting part 21 of the front end drives the first conveying line 22 of the front end to ascend to be connected to the upward conveying line 11, and the carrier jig 3 is loaded by the nearby loading equipment. At this time, the first conveying line 22 of the front end reverses to convey the carrier jig 3 to the right.

[0077] The positioning device 5 of the front end releases the carrier jig 3. The carrier jig 3 is sent to the upward conveying line 11 and runs to the positioning device 5 on the middle conveying group 200. Since the number of the middle conveying group 200 is set to at least one group, the positioning device 5 is set at the corresponding processing position as needed. When the carrier jig 3 reaches each processing position, the carrier jig 3 is fixed by the positioning device 5. The processing equipment arranged on the adjacent side of the middle conveying group 200 processes the processed articles on the carrier jig 3. Finally, the processed articles are sent to the first conveying line 22 of the rear end and fixed by the positioning device 5 of the rear end. The nearby unloading equipment takes out the processed articles. The lifting part 21 of the rear end drives the first conveying line 22 of the rear end to descend to be connected to the downward conveying line 12. At the same time, the first conveying line 22 of the rear end reverses to convey to the left. The downward conveying line 12 receives the empty carrier jig 3 and flows back to the first conveying line 22 of the front end.

[0078] The above movement mode of the carrier jig 3 is that the carrier jig 3 moves along the guide rail and is driven by the contact friction force between the carrier jig 3 and each conveying line.

[0079] The above is the complete conveying process of the circulating conveying equipment.

[0080] Embodiment 2: The specific structure of each component of the utility model is as follows:

[0081] The lifting part 21 comprises:

[0082] A stand 215, one side of which is provided with a double-track guide rail 214 in the Z-axis direction;

[0083] A Z-axis movable part, which is slidably connected to the double-track guide rail 214, and the first conveying line 22 is fixed to the Z-axis movable part;

[0084] A transmission mechanism, which is drivingly connected to the Z-axis movable part to drive the Z-axis movable part to move up and down; the transmission mechanism is a lead screw module 213, which is provided in the Z-axis direction and has a screw rod rotatably mounted on the stand 215 and a nut threadedly connected to the screw rod, the nut being fixedly connected to the Z-axis movable part; the power source of the first power part is a first servo motor 211, which is drivingly connected to a first driving wheel;

[0085] The first power part is drivingly connected to the transmission mechanism, and the driven end of the first power part is a first driven wheel 212, which is connected to one end of the screw rod and has a first belt sleeved therebetween and the first driving wheel.

[0086] The first conveying line 22 comprises:

[0087] A conveying stand 223, which is fixedly connected to the Z-axis movable part and has a linear guide rail stand;

[0088] A first linear guide rail 222, which is mounted on the upper end surface of the linear guide rail stand;

[0089] A first conveying belt 221, which is laterally mounted on the linear guide rail stand; the first conveying belt 221 comprises first pulleys rotatably mounted on the front and rear ends of the linear guide rail stand and a second belt sleeved on the two first pulleys;

[0090] A second power part, which is drivingly connected to the first conveying belt 221; the second power part comprises a second servo motor mounted on the conveying stand 223, a second driving wheel 224 provided on the driving shaft of the second servo motor, and the second belt is sleeved on the second driving wheel 224 after passing through the opposite sides of two first tensioning wheels 225.

[0091] The upward conveying line 11 and the downward conveying line 12 have the same structure, which comprises:

[0092] An upward track stand 111;

[0093] An upward linear guide rail 113, which is fixed to the upper end surface of the upward track stand 111;

[0094] A second conveying belt 112 is arranged on the side of the upper track frame 111; the second conveying belt 112 comprises second pulleys rotatably arranged on the front and rear ends of the upper track frame 111, and a third belt sleeved on the two second pulleys;

[0095] A third power unit is drivingly connected with the second conveying belt 112; the third power unit comprises a third servo motor mounted on the upper track frame 111, a third driving wheel arranged on a driving shaft of the third servo motor, and the third belt is sleeved on the third driving wheel 116 through the two second tension pulleys 114.

[0096] The carrier fixture 3 comprises:

[0097] A substrate 31;

[0098] A plurality of sliding blocks 35 are arranged on the lower surface of the substrate 31; the groove lines of the plurality of sliding blocks 35 are coaxial, and the groove lines are provided with balls; the sliding blocks 35 can smoothly move along the upper straight linear guide rail 113, the lower straight linear guide rail and the first straight linear guide rail 222 through the balls;

[0099] A positioning rod 32 is arranged on the side of the substrate 31;

[0100] A pressing plate assembly 39 is mounted on the lower surface of the substrate 31, and the length direction of the pressing plate assembly 39 is parallel to the plurality of sliding blocks 35.

[0101] The pressing plate assembly comprises a pressing plate 34, a lower pressing elastic block 33, a plurality of guide assemblies and a plurality of springs 8;

[0102] The pressing plate 34 is provided with a plurality of through holes penetrating through both surfaces and a plurality of spring accommodating holes penetrating through both surfaces;

[0103] The lower pressing elastic block 33 is provided with a plurality of screw holes arranged one-to-one with the through holes, and a plurality of blind holes arranged one-to-one with the spring accommodating holes;

[0104] The substrate 31 is provided with a stepped hole arranged in pairs with the through holes;

[0105] One end of the spring 8 abuts against the blind hole, and the other end of the spring 8 enters the spring accommodating hole;

[0106] The guide assembly comprises a guide column 37 and a linear bearing 36; the linear bearing 36 is arranged in the through hole; the threaded end of the guide column 37 passes through the stepped hole and the linear bearing 36 in sequence, and is fixed with the screw hole of the lower pressing elastic block 33, and the cap end is limited by the step of the stepped hole;

[0107] The lower pressing elastic block 33 is an elastic member, and the side away from the pressing plate 34 is provided with a concave-convex pattern 331 capable of increasing friction, which is perpendicular to the transmission direction of each conveying line. The lower pressing elastic block 33 is provided as a wear-resistant rubber member, which can generate good friction with each belt. Through the fitting of the lower pressing elastic block 33 and each belt, and the pushing force of the belt to the lower pressing elastic block 33, the carrier tool 3 is driven by each belt.

[0108] Since there is a gap between adjacent conveying belts, the length of the lower pressing elastic block 33 below the carrier tool 3 exceeds the gap, so that the carrier tool 3 can be transmitted and transferred at the connection.

[0109] The positioning device 5 comprises:

[0110] The vertical plate 52;

[0111] The blocking cylinder assembly is laterally fixed to the vertical plate 52, and has a vertically arranged blocking cylinder 55, a vertical guide rail vertically arranged on the vertical plate 52, and a blocking block 54 slidingly connected to the vertical guide rail. The driving shaft of the blocking cylinder 55 is upwardly connected to the blocking block 54.

[0112] The clamping cylinder assembly is obliquely arranged on the vertical plate 52, and has an obliquely arranged clamping cylinder 51, an obliquely arranged inclined guide rail, and a clamping block 53 slidingly connected to the inclined guide rail. The driving shaft of the clamping cylinder 51 is connected to the clamping block 53, and the clamping surface of the clamping block 53 moves along a track capable of clamping the side surface of the blocking block 54 after the blocking block 54 is lifted. The clamping surface of the clamping block 53 is parallel to the side surface of the blocking block 54.

[0113] When the carrier tool 3 approaches the blocking cylinder assembly, the blocking cylinder 55 pushes the blocking block 54 upward to stop the positioning rod 32 on the carrier tool 3. At the same time, the clamping cylinder 51 of the clamping cylinder assembly drives the clamping block 53 to obliquely extend, and the clamping block 53 clamps the positioning rod 32. The positioning rod 32 is not moved, and the carrier tool 3 is not moved.

[0114] In summary, the utility model discloses circulation transmission equipment through set up the splicing structure of front end conveying group, rear end conveying group and intermediate conveying group, through the up-and-down conveying line of intermediate conveying group, the liftable conveying line of both ends, realized the circulation transmission of material, can satisfy the demand of multiple processing or detection of material in complex production technology, improved production efficiency. The utility model discloses circulation transmission equipment through the design of lifting type conveying mechanism, make first conveying line can be flexibly with the uplink and downlink line connection, guarantee the smoothness of material transition between different conveying lines. The utility model discloses circulation transmission equipment on the stage fixture through the cooperation of ball and linear guide rail in slider, can effectively adapt to different track shapes, the setting of the platen assembly increases the friction between stage fixture and conveying line, ensure the stability of stage fixture in the transmission process, reduce the material deviation, fall off and so on. The utility model discloses circulation transmission equipment on positioning device can accurately position stage fixture, improved the accuracy of material transmission, satisfy the production technology of higher processing accuracy requirement. The utility model discloses circulation transmission equipment and system structure design is reasonable, and the operation is stable and reliable, has higher practicality and popularization value.

[0115] The above is only the preferred embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structure or equivalent process transformation using the content of the utility model specification and drawings, or direct or indirect application in other related technical fields, are also included in the patent protection range of the utility model.

Claims

1. A loop transport apparatus having a rail-mounted stage device, characterized by, It includes: The front end conveying group (100) has a first shell, a lifting conveying mechanism (2) arranged in the first shell, and the lifting conveying mechanism (2) includes a lifting part (21), a first conveying line (22) drivingly connected with the lifting part (21) and capable of being driven by the lifting part (21) to make lifting action; The rear end conveying group (300) has the same structure as the front end conveying group (100); At least one set of intermediate conveying groups (200) is arranged between the front end conveying group (100) and the rear end conveying group (300) and is sequentially spliced to form a straight-line splicing structure, the intermediate conveying group (200) has a second shell, an upward conveying line (11) arranged in the second shell, and a downward conveying line (12) arranged in the second shell, and the first conveying line (22) is alternately connected with the upward conveying line (11) and the downward conveying line (12) in a lifting manner; At least one set of loading jigs (3) can be driven by the first conveying line (22), the upward conveying line (11) and the downward conveying line (12) to make straight-line movement; A plurality of positioning devices (5) have clamping mechanisms for fixing and releasing the loading jigs (3), and one node position of the first conveying line (22) and at least one node position of the upward conveying line (11) are provided with the positioning devices (5).

2. A loop conveyor apparatus having a track-mounted carriage arrangement according to claim 1, wherein, The lifting part (21) includes: A stand (215) is provided with double-row guide rails (214) on one side of the Z-axis; A Z-axis movable part is slidably connected to the double-row guide rails (214), and the first conveying line (22) is fixed to the Z-axis movable part; A transmission mechanism drivingly connects the Z-axis movable part to make lifting action; A first power part is drivingly connected with the transmission mechanism.

3. A looped conveyor apparatus having a track-mounted carriage arrangement according to claim 2, wherein, The transmission mechanism is a lead screw module (213) arranged in the Z-axis direction, which has a screw rod rotatably mounted on the stand (215) and a nut threadedly connected to the screw rod, and the nut is fixedly connected with the Z-axis movable part; The power source of the first power part is a first servo motor (211) drivingly connected with a first driving wheel; The driven end of the first power part is a first driven wheel (212) connected to one end of the screw rod and sleeved with a first belt between the first driving wheel.

4. The endless conveyor according to claim 2, wherein, The first conveying line (22) includes: A conveying stand (223) is fixedly connected with the Z-axis movable part and has a straight-line guide rail stand; A first straight-line guide rail (222) is arranged on the upper end surface of the straight-line guide rail stand; A first conveying belt (221) is laterally arranged on the straight-line guide rail stand; A second power part is drivingly connected with the first conveying belt (221).

5. A looped transport apparatus with a rail-mounted table device according to claim 4, characterized in that The first conveying belt (221) includes rotatable first pulleys laterally arranged on the front and rear ends of the straight-line guide rail stand and a second belt sleeved on the two first pulleys; The second power part comprises a second servo motor installed on the conveying frame (223), a second driving wheel (224) arranged on a driving shaft of the second servo motor, and the second belt is sleeved on the second driving wheel (224) and passes through two first tensioning wheels (225).

6. A loop transport apparatus having a rail-mounted stage device according to claim 1, wherein, The uplink conveying line (11) and the downlink conveying line (12) are the same in structure, and each comprises: an uplink rail frame (111); an uplink linear guide rail (113) fixed to an upper end surface of the uplink rail frame (111); a second conveying belt (112) laterally arranged on the uplink rail frame (111); a third power part in driving connection with the second conveying belt (112).

7. A looped conveyor apparatus having a track-mounted carriage arrangement according to claim 6, wherein, The second conveying belt (112) comprises second belt pulleys rotatably arranged on front and rear ends of the uplink rail frame (111) and a third belt sleeved on the two second belt pulleys; The third power part comprises a third servo motor installed on the uplink rail frame (111), a third driving wheel (116) arranged on a driving shaft of the third servo motor, and the third belt is sleeved on the third driving wheel (116) and passes through two second tensioning wheels (114).

8. The looped transport apparatus with a rail-mounted stage device according to claim 1, characterized in that, The stage jig (3) comprises: a base plate (31); a plurality of sliding blocks (35) arranged on a lower surface of the base plate (31), wherein groove lines of the plurality of sliding blocks (35) are coaxial, and balls are arranged in the groove lines; a positioning rod (32) laterally arranged on the base plate (31); a pressing plate assembly (39) installed on the lower surface of the base plate (31) and parallel to the plurality of sliding blocks (35) in a length direction of the pressing plate assembly (39).

9. A looped transport apparatus with a rail-mounted table device according to claim 8, characterized in that The pressing plate assembly comprises a pressing plate (34), a lower pressing elastic block (33), a plurality of guide assemblies, and a plurality of springs (8); The pressing plate (34) is provided with a plurality of through holes passing through two surfaces and a plurality of spring accommodating holes passing through two surfaces; The lower pressing elastic block (33) is provided with a plurality of screw holes arranged one-to-one with the through holes and a plurality of blind holes arranged one-to-one with the spring accommodating holes; The base plate (31) is provided with a stepped hole arranged in pairs with the through holes; One end of the spring (8) abuts against the blind hole, and the other end of the spring (8) enters the spring accommodating hole; The guide assembly comprises a guide column (37) and a linear bearing (36), the linear bearing (36) is arranged in the through hole, and the threaded end of the guide column (37) passes through the stepped hole and the linear bearing (36) in sequence and is fixed with the screw hole of the lower pressing elastic block (33), and the cap end of the guide column (37) is limited by the step of the stepped hole; The lower pressing elastic block (33) is an elastic member, one surface of the lower pressing elastic block (33) away from the pressing plate (34) is provided with a concave-convex pattern (331) capable of increasing friction, and the concave-convex pattern (331) is perpendicular to the transmission direction of each conveying line.

10. A loop transport apparatus having a rail-mounted stage device according to claim 9, wherein, The positioning device (5) comprises: an upright plate (52); a blocking cylinder assembly laterally fixed to the upright plate (52), the blocking cylinder assembly has a vertically arranged blocking cylinder (55), a vertical guide rail vertically arranged on the upright plate (52), and a blocking block (54) slidingly connected to the vertical guide rail, and a driving shaft of the blocking cylinder (55) is connected to the blocking block (54) with the driving shaft upward. The clamping cylinder assembly is obliquely installed on the vertical plate (52), and has an obliquely arranged clamping cylinder (51), an obliquely arranged inclined guide rail and a clamping block (53) slidingly connected to the inclined guide rail. The driving shaft of the clamping cylinder (51) is connected to the clamping block (53), and the clamping surface of the clamping block (53) can move along a track towards the side surface of the blocking block (54) after the blocking block (54) is lifted, and the clamping surface of the clamping block (53) is parallel to the side surface of the blocking block (54).

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