Line type clamp circulation shifting fork structure and circulation method

Abstract

The invention relates to the field of automatic assembly, in particular to a line type clamp circulation shifting fork structure and a circulation method. The line type clamp circulation shifting fork structure comprises an upper-layer circulation table and a lower-layer circulation table which are arranged up and down; the circulation lifting tables are arranged on the two sides of the upper-layer circulation table and the lower-layer circulation table and used for enabling the positioning circulation clamp to circulate between the upper-layer circulation table and the lower-layer circulation table, and shifting fork pins are arranged on the peripheral side of the bottom of the positioning circulation clamp; a plurality of shifting fork structures are arranged on the upper-layer circulation table and the lower-layer circulation table, each shifting fork structure comprises a shifting fork base, a shifting fork air cylinder and a shifting fork block, the shifting fork air cylinders and the shifting fork blocks are arranged on the shifting fork bases, and the shifting fork air cylinders drive the shifting fork blocks to horizontally move in the direction of the positioning circulation clamp and are movably matched with the shifting fork pins; every two adjacent shifting fork structures are connected through a link block and move synchronously. Compared with the prior art, the fixture tool transfer device has the advantages that the fixture tool can be transferred more stably in the transfer process, and the transfer position of the fixture tool is more accurate.

Description

Technical Field

[0001] The invention relates to the field of automated assembly, and in particular to a linear clamp transfer fork structure and a transfer method. Background Art

[0002] In automated process operations, due to the high-precision production requirements of products, the production process must be very stable and the positioning must be extremely precise. However, many existing assembly line operation methods cannot meet these requirements, resulting in poor machine stability, which in turn affects the machine's operating efficiency.

[0003] At present, factories generally rely on manual handling of products, and then place them in automated equipment for subsequent production. This method not only consumes a lot of manpower, but also prolongs the production cycle of products, increases costs, and cannot meet the requirements of lean production.

[0004] Therefore, in order to improve production efficiency and reduce manpower requirements, it is now urgent to design a linear clamp transfer fork structure and transfer method. Summary of the invention

[0005] The purpose of the present invention is to overcome the deficiencies of the prior art and to provide a linear clamp transfer fork structure and a transfer method to improve the transfer stability, transfer accuracy and automation level in the automated process and reduce the demand for manpower.

[0006] In order to achieve the above-mentioned purpose, a linear fixture flow fork structure is designed, comprising: an upper flow turntable and a lower flow turntable arranged up and down; a flow turntable lifting platform arranged on both sides of the upper flow turntable and the lower flow turntable, the flow turntable lifting platform is used to turn the positioning flow fixture between the upper flow turntable and the lower flow turntable, and a fork pin is arranged on the circumferential side of the bottom of the positioning flow fixture; the upper flow turntable and the lower flow turntable are both provided with a plurality of fork structures, and the fork structure comprises: a fork base, a fork cylinder and a fork block arranged on the fork base, the fork cylinder drives the fork block to move horizontally toward the direction of the positioning flow fixture and to realize active cooperation with the fork pin; two adjacent fork structures are connected by a link block and move synchronously.

[0007] Preferably, the fork structure provided by the present invention also includes other technical features, wherein a limit platform is provided on the rotary lifting platform for clamping and positioning the rotary fixture, one side of the rotary lifting platform is connected to a lifting motor, and the lifting motor drives the rotary lifting platform to move in a vertical direction.

[0008] Preferably, the shift fork structure provided by the present invention also includes other technical features, wherein a sliding block is provided at the bottom of the positioning flow turntable to movably cooperate with the guide rails on the upper flow turntable and the lower flow turntable.

[0009] Preferably, the fork structure provided by the present invention also includes other technical features, wherein a driving motor is provided under the upper turntable, a driving block is provided at the telescopic end of the driving motor, and the other end of the driving block is connected to the link block, and the driving motor drives the positioning flow fixture coordinated with the fork structure to perform reciprocating motion on the upper turntable through the link block.

[0010] Preferably, the fork structure provided by the present invention also includes other technical features, wherein a belt motor is axially provided on the upper side of the lower flow turntable, a fixing plate is provided on the belt of the belt motor, the fixing plate is fixedly connected to the link block of the fork structure on the lower flow turntable, and the belt motor drives the positioning flow fixture matched with the fork structure to perform reciprocating motion on the lower flow turntable through the link block.

[0011] Preferably, the shift fork structure provided by the present invention also includes other technical features, wherein a plurality of positioning cylinders are provided at the bottom of the upper flow turntable and the lower flow turntable, and the positioning cylinders drive the positioning pins to move in the positioning bushings at the bottom of the positioning flow turntable (1) to achieve positioning and limiting of the positioning flow turntable.

[0012] The present invention also provides a flow method using the above-mentioned linear clamp flow fork structure, and the specific steps are as follows: Step S1. Start the device, and the fork structure on the upper flow turntable and the lower flow turntable and the flow lift platform begin to make synchronous intermittent motion; Step S2. The right flow lift platform lifts the positioning flow fixture; Step S3. The upper flow turntable transfers the positioning flow fixture from the right flow lift platform to the left flow lift platform; Step S4. The left flow lift platform lowers the positioning flow fixture; Step S5. The lower flow turntable transfers the positioning flow fixture from the left flow lift platform to the left and right flow lift platforms; Step S6. Repeat Steps S2 to S5 until the processing is completed and the machine is shut down.

[0013] Preferably, the circulation method described in the present invention also includes other technical features, in which the step S3 is specifically as follows: Step S3.1. The right side flow transfer lifting platform of the upper flow transfer platform lifts the positioning flow transfer fixture upward to a height that matches the upper flow transfer platform; Step S3.2. The fork structure of the upper flow transfer platform moves toward the right side flow transfer lifting platform driven by the link block, and the fork structure moves to one side of the positioning flow transfer fixture. At this time, the fork block of the fork structure is pulled back by the fork cylinder and forms a avoidance with the positioning flow transfer fixture; Step S3.3. The fork cylinder pushes the fork block to extend and form a match with the fork pin of the positioning flow transfer fixture; Step S3.4. The link block drives the fork structure to move away from the right side flow transfer lifting platform, and the fork block matched with the fork pin drives the positioning flow transfer fixture on the upper flow transfer platform to move away from the right side flow transfer lifting platform; Step S3.5. Loop steps S3.2 to S3.4 until the positioning flow transfer fixture is transferred to the left side flow transfer lifting platform.

[0014] Preferably, the circulation method described in the present invention also includes other technical features, wherein the step S5 is specifically as follows: step S5.1. The left side circulation lifting platform of the lower flow turntable lowers the positioning circulation fixture to a height that matches the lower flow turntable; step S5.2. The fork structure of the lower flow turntable moves toward the left side circulation lifting platform driven by the link block, and the fork structure moves to one side of the positioning circulation fixture, at which time the fork block of the fork structure is pulled back by the fork cylinder and forms a avoidance with the positioning circulation fixture; step S5.3. The fork cylinder pushes the fork block to extend and form a match with the fork pin of the positioning circulation fixture; step S5.4. The link block drives the fork structure to move away from the left side circulation lifting platform, and the fork block matched with the fork pin drives the positioning circulation fixture (1) on the lower flow turntable to move away from the left side circulation lifting platform; step S5.5. Loop steps S5.2 to S5.4 until the positioning circulation fixture is transferred to the right side circulation lifting platform.

[0015] Compared with the prior art, the present invention has the following advantages: A structure and method are provided to enable a positioning fixture to circulate on a multi-layer assembly line. By cooperating with a shift fork structure and a fixture tooling, the fixture tooling can be circulated more smoothly during its circulation process, and the circulation position of the fixture tooling is more precise, thereby reducing the need for manual correction, and improving the safety, accuracy, and efficiency of automated production. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 , is a stereogram of the device of the present invention; Figure 2 , is a front view of the device of the present invention; Figure 3 , is a top view of the device of the present invention; Figure 4 , is a left side view of the device of the present invention; Figure 5 ,yes Figure 4 AA plane section view; Figure 6 ,yes Figure 4 BB surface section view; Figure 7 , is a three-dimensional diagram of the positioning flow fixture; Figure 8 , is a bottom-up stereogram of the positioning flow fixture; Fig. 9 , is a perspective upward stereogram of the positioning flow fixture; Fig.10 , is a stereoscopic diagram of the shift fork structure without the auxiliary link block; Fig.11 , is a three-dimensional diagram of the fork structure; Fig.12 , is a bottom view of the fork structure without the guide rail slider; Fig.13 , is a perspective bottom view with the lower flow turntable hidden; Fig.14 , is a perspective bottom view with the lower flow turntable hidden; Fig.15 , is a perspective view of the upper flow turntable driving device; Fig.16 , is a perspective view of the lower flow turntable driving device; In the figure: 1 positioning flow fixture, 2 limit table, 3 flow lifting table, 4 lifting motor, 5 fork base, 6 fork cylinder, 7 fork block, 8 fork pin, 9 positioning cylinder, 10 positioning pin, 11 positioning bushing, 12 link block, 12-1 auxiliary link block, 13 drive block, 13-1 drive motor, 14 fixed plate, 14-1 belt motor, 14-2 belt, 15 upper flow turntable, 16 lower flow turntable, 17 slider, 18 guide rail. DETAILED DESCRIPTION

[0017] In order to make the purpose, principle and structure of the present invention more clear, it is further described below in conjunction with the drawings and specific embodiments. Example

[0018] See also Figures 1 to 16 This embodiment provides a linear clamp flow fork structure, including: An upper flow turntable 15 and a lower flow turntable 16 are arranged up and down, and a plurality of guide rails 18 are arranged on the upper flow turntable 15 and the lower flow turntable 16 in the axial direction.

[0019] A plurality of positioning and circulation fixtures 1 are provided, and the positioning and circulation fixtures 1 are used to carry products. A plurality of shift fork pins 8 are provided on the bottom of the positioning and circulation fixtures 1. A plurality of sliders 17 are also provided at the bottom of the positioning and circulation fixtures 1 to cooperate with the guide rails 18 on the upper and lower flow turntables 15 and 16 to realize movement.

[0020] A plurality of flow-transfer lifting platforms 3 are provided with a limit platform 2 on the flow-transfer lifting platform 3, and the limit platform 2 is used to clamp and release the positioning flow-transfer fixture 1. A lifting motor 4 is connected to one side of the flow-transfer lifting platform 3, and the lifting motor 4 drives the flow-transfer lifting platform 3, the limit platform 2 on the flow-transfer lifting platform 3, and the positioning flow-transfer fixture 1 on the limit platform to move up and down in the vertical direction. The plurality of flow-transfer lifting platforms 3 are arranged on both sides of the upper flow-transfer platform 15 and the lower flow-transfer platform 16, and their lifting heights can be matched with the upper flow-transfer platform 15 and the lower flow-transfer platform 16 respectively.

[0021] A plurality of shift fork structures, wherein the shift fork structures are arranged on the guide rails 18 of the upper flow turntable 15 and the lower flow turntable 16. The shift fork structure comprises: a shift fork base 5, a shift fork cylinder 6 and a shift fork block 7 arranged on the shift fork base 5, and a slider 17 arranged on one side of the shift fork base 5. The shift fork block 7 is provided with a notch that matches the shape of the shift fork pin 8, and the shift fork block 7 sets the notch toward the direction of the positioning flow fixture 1. The telescopic portion of the shift fork cylinder 6 is connected to the shift fork block 7 to drive the shift fork block 7 to perform telescopic movement toward the positioning flow fixture 1. The notch on the shift fork block 7 can form and release the match with the shift fork pin 8 of the positioning flow fixture 1 under the action of the telescopic movement. The slider 17 arranged on one side of the shift fork base 5 is used to move the shift fork structure on the guide rail 18. An auxiliary link block 12 - 1 fixedly connected by bolts is arranged at the upper end of the fork structure, and a link block 12 is connected between the auxiliary link blocks 12 - 1 . The link block 12 is used to connect several fork structures and realize synchronous movement.

[0022] A driving motor 13-1 is axially arranged at the bottom of the upper flow turntable 15, and a driving block 13 is arranged on the telescopic part of the driving motor 13-1, and the other end of the driving block 13 is connected to the link block 12. The driving motor 13-1 drives the telescopic part to perform reciprocating telescopic motion along the axial direction, driving the driving block 13, the link block 12 connected to the driving block 13, the auxiliary link block 12-1 connected to the link block 12, and the fork structure connected to the auxiliary link block 12-1 to perform axial reciprocating motion. The fork structure can perform axial reciprocating motion under the action of the driving motor 13-1 through the cooperation of the slider 17 and the slide rail 18.

[0023] A belt 14-2 is axially arranged on the lower flow turntable 16, one end of the belt 14-2 is provided with a belt motor 14-1, and the other end is provided with a follower tension wheel. A fixing plate 14 is also arranged on the belt 14-2, and the fixing plate 14 is connected to the link block 12 on the lower flow turntable 16. By driving the output end of the belt motor 14-1 to repeatedly rotate left and right at equal angles, the belt 14-2 is driven to reciprocate along the axial direction, thereby driving the fixing plate 14, the link block 12, and the fork structure connected to the link block 12 to reciprocate along the axial direction.

[0024] A plurality of positioning cylinders 9 with telescopic parts arranged upward are further provided below the upper flow turntable 15 and the lower flow turntable 16. The telescopic parts at the upper ends of the positioning cylinders 9 are provided with positioning pins 10. An opening is provided at the bottom of the positioning flow fixture 1. A positioning bushing 11 is provided in the opening. The positioning pin 10 can be extended into the positioning bushing 11 and cooperated with it under the drive of the positioning cylinder 9, so that the positioning cylinder 9 can limit and fix the positioning flow fixture 1. Example

[0025] On the basis of the first embodiment, more parallel turntables can be arranged on the upper turntable 15 and the lower turntable 16; and more turntable lifting platforms 3 and related lifting structures can be arranged on both sides of the turntable to form a complete turntable structure, which are improvements that can be made by technicians in this field on the basis of the first embodiment. Example

[0026] This embodiment provides a method for rotating a linear clamp fork structure.

[0027] The specific steps are as follows: Step S1. Start the device, and the fork structure on the upper flow turntable 15 and the lower flow turntable 16 and the flow lift 3 begin to make synchronous intermittent motion; Step S2. The right side circulation lifting platform 3 lifts the positioning circulation fixture 1; Step S3. On the upper transfer platform 15, the positioning transfer fixture 1 is transferred from the right transfer lifting platform 3 to the left transfer lifting platform 3; Step S4. The left side circulation lifting platform 3 lowers the positioning circulation fixture 1; Step S5. On the lower flow transfer platform 16, the positioning flow transfer fixture 1 is transferred from the left flow transfer lifting platform 3 to the left and right flow transfer lifting platforms 3; Step S6. Loop steps S2 to S5 until the processing is completed and the machine is shut down.

[0028] The step S3 is specifically as follows: Step S3.1. The upper flow turntable 15 right side flow lift platform 3 lifts the positioning flow fixture 1 upward to a height that matches the upper flow turntable 15; Step S3.2. The fork structure of the upper flow transfer platform 15 moves toward the right flow transfer lifting platform 3 driven by the link block 12, and the fork structure moves to one side of the positioning flow transfer fixture 1. At this time, the fork block 7 of the fork structure is pulled back by the fork cylinder 6 and forms an avoidance with the positioning flow transfer fixture 1; Step S3.3. The shift fork cylinder 6 pushes the shift fork block 7 to extend and cooperate with the shift fork pin 8 of the positioning flow fixture 1; Step S3.4. The link block 12 drives the fork structure to move away from the right side flow lift platform 3, and the fork block 7 cooperating with the fork pin 8 drives the positioning flow fixture 1 on the upper flow lift platform 15 to move away from the right side flow lift platform 3; Step S3.5. Loop steps S3.2 to S3.4 until the positioning transfer fixture 1 is transferred to the left transfer lifting platform 3.

[0029] The step S5 is specifically as follows: Step S5.1. The left side flow lift platform 3 of the lower flow turntable 16 lowers the positioning flow fixture 1 to a height that matches the lower flow turntable 16; Step S5.2. The fork structure of the lower flow turntable 16 moves to the left direction of the flow turntable 3 under the drive of the link block 12, and the fork structure moves to one side of the positioning flow fixture 1. At this time, the fork block 7 of the fork structure is pulled back by the fork cylinder 6 and forms an avoidance with the positioning flow fixture 1; Step S5.3. The fork cylinder 6 pushes the fork block 7 to extend and cooperate with the fork pin 8 of the positioning flow fixture 1; Step S5.4. The link block 12 drives the fork structure to move away from the left flow lift platform 3, and the fork block 7 cooperating with the fork pin 8 drives the positioning flow fixture 1 on the lower flow lift platform 16 to move away from the left flow lift platform 3; Step S5.5. Loop steps S5.2 to S5.4 until the positioning transfer fixture 1 is transferred to the right transfer lifting platform 3.

[0030] The above description is only a specific implementation mode of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or changes according to the technical solutions and novel concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A linear clamp flow fork structure, characterized in that: include: An upper flow turntable (15) and a lower flow turntable (16) arranged up and down; A flow-transfer lifting platform (3) is arranged on both sides of the upper flow-transfer platform (15) and the lower flow-transfer platform (16), the flow-transfer lifting platform (3) is used to transfer the positioning flow-transfer fixture (1) between the upper flow-transfer platform (15) and the lower flow-transfer platform (16), and a shift fork pin (8) is arranged on the circumference of the bottom of the positioning flow-transfer fixture (1); The upper flow turntable (15) and the lower flow turntable (16) are both provided with a plurality of shift fork structures, wherein the shift fork structures include: A shift fork base (5), a shift fork cylinder (6) and a shift fork block (7) arranged on the shift fork base (5), wherein the shift fork cylinder (6) drives the shift fork block (7) to move horizontally in the direction of the positioning and circulation fixture (1) and to flexibly cooperate with the shift fork pin (8); two adjacent shift fork structures are connected via a link block (12) and move synchronously.

2. A linear clamp flow fork structure as claimed in claim 1, characterized in that: The circulation lifting platform (3) is provided with a limit platform (2) for clamping and positioning the circulation fixture (1); one side of the circulation lifting platform (3) is connected to a lifting motor (4); and the lifting motor (4) drives the circulation lifting platform (3) to move in a vertical direction.

3. A linear clamp flow fork structure as claimed in claim 1, characterized in that: A slider (17) is provided at the bottom of the positioning flow-transfer fixture (1) and is movably matched with guide rails (18) on the upper flow-transfer table (15) and the lower flow-transfer table (16).

4. A linear clamp flow fork structure as claimed in claim 1, characterized in that: A driving motor (13-1) is provided below the upper flow turntable (15); a driving block (13) is provided at the telescopic end of the driving motor (13-1); the other end of the driving block (13) is connected to a link block (12); the driving motor (13-1) drives a positioning flow turntable (1) matched with a shift fork structure to perform reciprocating motion on the upper flow turntable (15) via the link block (12).

5. A linear clamp flow fork structure as claimed in claim 1, characterized in that: A belt motor (14-1) is axially arranged on the lower flow turntable (16); a fixed plate (14) is arranged on the belt (14-2) of the belt motor (14-1); the fixed plate (14) is fixedly connected to a link block (12) of a fork structure on the lower flow turntable (16); the belt motor (14-1) drives a positioning flow fixture (1) matched with the fork structure to perform reciprocating motion on the lower flow turntable (16) via the link block (12).

6. A linear clamp flow fork structure as claimed in claim 1, characterized in that: A plurality of positioning cylinders (9) are provided at the bottom of the upper flow turntable (15) and the lower flow turntable (16), and the positioning cylinders (9) drive the positioning pins (10) to move in the positioning bushings (11) at the bottom of the positioning flow turntable (1) to achieve positioning and limiting of the positioning flow turntable (1).

7. A method for transferring a linear clamp transfer fork structure according to any one of claims 1 to 6, characterized in that: The specific steps are as follows: Step S1. The device is started, and the fork structures on the upper flow turntable (15) and the lower flow turntable (16) and the flow lift (3) begin to perform synchronous intermittent motion; Step S2. The right side circulation lifting platform (3) lifts the positioning circulation fixture (1); Step S3. On the upper transfer platform (15), the positioning transfer fixture (1) is transferred from the right transfer lifting platform (3) to the left transfer lifting platform (3); Step S4. The left side circulation lifting platform (3) lowers the positioning circulation fixture (1); Step S5. On the lower flow transfer platform (16), the positioning flow transfer fixture (1) is transferred from the left flow transfer lifting platform (3) to the left and right flow transfer lifting platforms (3); Step S6. Loop steps S2 to S5 until the processing is completed and the machine is shut down.

8. A method for transferring a linear clamp transfer fork structure as claimed in claim 7, characterized in that: The step S3 is specifically as follows: Step S3.

1. The right side flow lift platform (3) of the upper flow turntable (15) lifts the positioning flow fixture (1) upward to a height that matches the upper flow turntable (15); Step S3.

2. The shift fork structure of the upper flow transfer platform (15) moves toward the right flow transfer lifting platform (3) driven by the link block (12), and the shift fork structure moves to one side of the positioning flow transfer fixture (1). At this time, the shift fork block (7) of the shift fork structure is pulled back by the shift fork cylinder (6) and forms an avoidance with the positioning flow transfer fixture (1); Step S3.

3. The shift fork cylinder (6) pushes the shift fork block (7) to extend and form a match with the shift fork pin (8) of the positioning flow fixture (1); Step S3.

4. The link block (12) drives the shift fork structure to move away from the right side flow lift platform (3), and the shift fork block (7) matched with the shift fork pin (8) drives the positioning flow fixture (1) to move on the upper flow lift platform (15) away from the right side flow lift platform (3); Step S3.

5. Loop steps S3.2 to S3.4 until the positioning transfer fixture (1) is transferred to the left transfer lifting platform (3).

9. A method for transferring a linear clamp transfer fork structure as claimed in claim 7, characterized in that: The step S5 is specifically as follows: Step S5.

1. The left side flow lift (3) of the lower flow turntable (16) lowers the positioning flow fixture (1) to a height that matches the lower flow turntable (16); Step S5.

2. The fork structure of the lower flow turntable (16) moves toward the left flow turntable (3) driven by the link block (12), and the fork structure moves to one side of the positioning flow turntable (1). At this time, the fork block (7) of the fork structure is pulled back by the fork cylinder (6) and avoids the positioning flow turntable (1); Step S5.

3. The shift fork cylinder (6) pushes the shift fork block (7) to extend and form a match with the shift fork pin (8) of the positioning flow fixture (1); Step S5.

4. The link block (12) drives the fork structure to move away from the left flow lift (3), and the fork block (7) matched with the fork pin (8) drives the positioning flow fixture (1) to move on the lower flow lift (16) away from the left flow lift (3); Step S5.

5. Loop steps S5.2 to S5.4 until the positioning transfer fixture (1) is transferred to the right transfer lifting platform (3).

Images