A guide rail end expansion device

Abstract

The present invention relates to the field of processing equipment, and specifically to a guide rail end expanding device, comprising a feeding device and a clamping device, the clamping device comprising a turntable and a fixing component arranged on the turntable for fixing the guide rail; the fixing component comprises a base, a clamping plate and a guide column; the base is distributed on the turntable along the axis of the turntable, and the base and the turntable are slidably connected, and the sliding direction is parallel to the radial direction of the turntable; the clamping plate is relatively arranged inside the base; one end of the guide column is fixedly connected to the clamping plate, and the other end of the guide column is in clearance fit with the base; the clamping device also comprises a control component for driving a pair of objects to move closer to or away from each other. The present invention arranges three circumferentially distributed fixing components on the turntable, and the three fixing components correspond to the feeding device, the expanding device and the conveyor belt respectively, so as to automate the processes of clamping, processing and outputting the guide rail, thereby reducing the workload of the staff and improving work efficiency.

Description

Technical Field

[0001] The present invention relates to the field of processing equipment, in particular to a guide rail end expanding device. Background Art

[0002] During the production process, the guide rail ends need to be expanded. During the expansion process, the guide rails need to be positioned and fixed. The existing positioning device has a simple structure and cannot ensure the expansion effect of the guide rails. Therefore, a expansion tooling for the guide rail ends is needed to solve the above problem.

[0003] Chinese patent CN216324652U discloses a flaring tool for the end of a guide rail, including a limit base, a mortgage adjustment device, a downward pressure fixing device and a flaring limiter; the limit base is arranged horizontally; the mortgage adjustment device is fixedly installed on the limit base, and the working end of the mortgage adjustment device extends horizontally; the downward pressure fixing device is arranged on the side of the limit base, and the working end of the downward pressure fixing device extends vertically downward; the flaring limiter is formed by splicing a first limiter and a second limiter, the first limiter is fixedly installed on the limit base, and the second limiter is fixedly installed on the working end of the downward pressure fixing device, thereby effectively fixing the guide rail.

[0004] However, during use of the above structure, the operator is required to manually place the guide rail into the workpiece or remove the processed guide rail from the tooling, which increases the operator's workload and reduces work efficiency. Therefore, a guide rail end expansion device is needed to solve the above problem. Summary of the Invention

[0005] In response to the above problems, a guide rail end expansion device is provided. By setting three circumferentially distributed fixed components on the turntable, and the three fixed components correspond to the feeding device, expansion equipment and conveyor belt respectively, the clamping, processing and output processes of the guide rail are automated, thereby reducing the workload of the staff and improving work efficiency.

[0006] In order to solve the problems of the prior art, the technical solution adopted by the present invention is:

[0007] A guide rail end flaring device includes a feeding device and a clamping device, the clamping device includes a turntable and a fixing component arranged on the turntable for fixing the guide rail; the fixing component includes a base, a clamping plate and a guide column; the base is provided with at least three and is distributed on the turntable along the axis of the turntable, the base and the turntable are slidably connected, and the sliding direction is parallel to the radial direction of the turntable; the clamping plates are relatively arranged inside the base; one end of the guide column is fixedly connected to the clamping plate, and the other end of the guide column is gap-fitted with the base; the clamping device also includes a control component for driving a pair of closer or farther away from each other.

[0008] Preferably, the fixing assembly also includes a first cylinder and a contact plate; the first cylinder is fixed to the top of the base, and the output end of the first gas rod is fixedly connected to the contact plate; in the working state, one side of the contact plate abuts against one end of the guide rail.

[0009] Preferably, the control component includes a second cylinder, a connecting slide rod, a scissors-fork telescopic frame and a first connecting rod; the second cylinder is fixed to the bottom end of the base; the connecting slide rod is arranged at the bottom of the base and is slidably connected to the base, and the connecting slide rod is fixedly connected to the output end of the second cylinder; the head and tail ends of the scissors-fork telescopic frame are respectively slidably connected to the bottom of a pair of clamping plates; a pair of first connecting rods are provided, one end of a pair of first connecting rods is respectively rotatably connected to the connecting slide rod, and the other end of a pair of first connecting rods is respectively rotatably connected to the tail end of the scissors-fork telescopic frame.

[0010] Preferably, the feeding device includes a support frame, a displacement track, a mounting plate, a material transport assembly and a drive assembly; the material transport assembly includes a mounting seat, a connecting frame, a rotating shaft and a roller; the support frame is arranged on one side of the turntable and opposite to a fixed assembly; the displacement track is arranged on the support frame; at least two mounting plates are provided and are arranged opposite to each other on both sides of the support frame; at least four mounting seats are provided and are arranged opposite to each other on the inner side of the mounting plate, and the mounting seats are fixedly connected to the mounting plate through a first connecting assembly; one end of the connecting frame is provided on the mounting seat and is rotatably connected to the mounting seat, and the other end of the connecting frame is rotatably connected to the rotating shaft; the roller is provided on the rotating shaft and fixedly connected to the rotating shaft. In the working state, the roller and the side surface of the guide rail abut against each other, and the roller drives the guide rail to move through the drive assembly.

[0011] Preferably, the material transport assembly also includes a gas spring and a second connecting rod; a convex shaft is provided at the bottom of the connecting frame; the gas spring is arranged at the bottom end of the mounting seat; the second connecting rod is arranged at the bottom of the mounting seat, one end of the second connecting rod is rotatably connected to the convex shaft of the connecting frame, and the other end of the second connecting rod is rotatably connected to the output end of the gas spring.

[0012] Preferably, the drive assembly includes a servo motor, a first pulley and a second pulley; the servo motor is fixed on one side of the connecting frame, the output end of the servo motor is located at the bottom of the connecting frame and is fixedly connected to the first pulley; the second pulley is arranged at the bottom of the connecting frame and is fixedly connected to the rotating shaft; a first synchronous belt is rotatably installed between the first pulley and the second pulley.

[0013] Preferably, slide rails are provided on both sides of the base, and a slide groove cooperating with the slide rails is provided on the turntable; a telescopic component for driving the base to move along the slide groove is also provided at the bottom of the turntable.

[0014] Preferably, the telescopic assembly includes a fixed truss, a third cylinder and a cylinder mounting seat; the fixed truss is arranged at the bottom of the base and is fixedly connected to the base through a second connecting assembly; the tail of the third cylinder is rotatably connected to the cylinder mounting seat, and the output end of the third cylinder is rotatably connected to the fixed truss; the cylinder mounting seat is fixedly connected to the bottom of the turntable.

[0015] Preferably, the first connecting component includes a first screw hole, a second screw hole and a first bolt; the first screw hole is arranged on the mounting plate; the second screw hole is arranged on the mounting seat, and the second screw hole corresponds one-to-one to the first screw hole; the first screw hole and the second screw hole are detachably fixedly connected by the first bolt.

[0016] Preferably, the second connecting assembly includes a third screw hole, a fourth screw hole and a second bolt; the third screw hole is arranged at the top of the base and passes through the bottom of the base; the fourth screw hole is arranged on the fixed truss, and the fourth screw hole corresponds to the third screw hole one by one; the third screw hole and the fourth screw hole are detachably fixedly connected by the second bolt.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The present invention arranges three circumferentially distributed fixed components on the turntable, and the three fixed components correspond to the feeding device, the flaring equipment and the conveyor belt respectively, so as to automate the processes of clamping, processing and outputting the guide rail, thereby reducing the workload of the staff and improving work efficiency.

[0019] 2. The present invention drives the scissor-fork type telescopic frame to extend and retract accordingly by using a cylinder, thereby controlling a pair of clamping plates to move closer to or farther away from each other, thereby clamping and fixing or releasing the guide rail.

[0020] 3. The present invention simultaneously provides two pairs of material transport components to control the movement of the guide rails, and through the precise control of the servo motor, it can ensure that the movement speed of the guide rails will not be too fast or too slow. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A three-dimensional diagram of a guide rail end expansion device Figure 1 ;

[0022] Figure 2 A three-dimensional diagram of a guide rail end expansion device Figure 2 ;

[0023] Figure 3 It is a top view of a guide rail end flaring device;

[0024] Figure 4 It is a three-dimensional schematic diagram of the clamping device;

[0025] Figure 5 It is a three-dimensional decomposition of the clamping device Figure 1 ;

[0026] Figure 6 yes Figure 5 A partial enlarged view of point A in the middle;

[0027] Figure 7 It is a three-dimensional decomposition of the clamping device Figure 2 ;

[0028] Figure 8 It is a three-dimensional schematic diagram of the feeding device;

[0029] Figure 9 It is a three-dimensional exploded view of the feeding device;

[0030] Figure 10 It is a three-dimensional exploded view of the material transport component.

[0031] The numbers in the figure are:

[0032] 1-feeding device; 11-support frame; 12-displacement track; 13-mounting plate; 14-material transport assembly; 141-mounting seat; 142-connecting frame; 143-rotating shaft; 144-roller; 145-gas spring; 146-second connecting rod; 15-drive assembly; 151-servo motor; 152-first pulley; 153-second pulley; 154-first synchronous belt;

[0033] 2-clamping device; 21-turntable; 211-slide; 22-fixing assembly; 221-base; 2211-slide rail; 222-clamping plate; 223-guide column; 224-first cylinder; 225-contact plate; 23-control assembly; 231-second cylinder; 232-connecting slide rod; 233-scissor fork telescopic frame; 234-first connecting rod;

[0034] 3- telescopic assembly; 31- fixed truss; 32- third cylinder; 33- cylinder mounting base;

[0035] 4-first connecting component; 41-first screw hole; 42-second screw hole; 43-first bolt;

[0036] 5-second connecting assembly; 51-third screw hole; 52-fourth screw hole; 53-second bolt;

[0037] 61-Expanding equipment; 62-Conveyor belt. DETAILED DESCRIPTION

[0038] In order to further understand the features, technical means, specific objectives and functions achieved by the present invention, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0039] Reference Figure 1 — Figure 4 As shown, the present invention provides: a guide rail end flaring device, including a feeding device 1 and a clamping device 2, the clamping device 2 includes a turntable 21 and a fixing component 22 arranged on the turntable 21 for fixing the guide rail; the fixing component 22 includes a base 221, a clamping plate 222 and a guide column 223; the base 221 is provided with at least three and is distributed on the turntable 21 along the axis of the turntable 21, the base 221 is slidably connected to the turntable 21, and the sliding direction is parallel to the radial direction of the turntable 21; the clamping plate 222 is relatively arranged inside the base 221; one end of the guide column 223 is fixedly connected to the clamping plate 222, and the other end of the guide column 223 is gap-fitted with the base 221; the clamping device 2 also includes a control component 23 for driving a pair of closer or farther away from each other.

[0040] The expanding device is also provided with a device for expanding the guide rail and a conveyor belt 62 for transferring the expanded guide rail. Because the existing technology is used, it is not described in detail here. By arranging three fixing components 22 on the turntable 21, which correspond to the feeding device 1, the expanding device 61 and the conveyor belt 62 respectively, the expanding process of the guide rail is automated, thereby reducing the workload of the staff and improving work efficiency. When the guide rail that has not been expanded approaches the fixing component 22 from the feeding device 1, the pair of clamping plates 222 provided on the base 221 are driven by the control component 23 to move closer to each other, and one end of the guide rail contacts the clamping plate 222, and continues to move along the length direction of the clamping plate 222 under the drive of the feeding device 1 until one end of the guide rail abuts against the base 221. And a pair of clamping plates 222, driven by the control component 23, are completely fitted on both sides of the guide rail, thereby fixing the guide rail to the base 221, and then the turntable 21 rotates, so that the fixed component 22 of the inherent guide rail moves circumferentially with the turntable 21, thereby moving the end of the guide rail to a position directly opposite the flaring device 61, so as to flare the guide rail. When the end of the guide rail is flared, the turntable 21 continues to rotate, thereby moving the flared guide rail to the conveyor belt 62, thereby transferring the flared guide rail from the conveyor belt 62 out of the equipment. When the turntable 21 moves the fixed component 22 with the guide rail to the flaring device 61 for processing, the feeding device 1 moves the next guide rail to the fixed component 22 transferred here for fixing, thereby ensuring that the overall processing flow is uninterrupted, thereby improving processing efficiency.

[0041] Reference Figure 4 and Figure 5 As shown: the fixing assembly 22 also includes a first cylinder 224 and a contact plate 225; the first cylinder 224 is fixed to the top of the base 221, and the output end of the first gas rod is fixedly connected to the contact plate 225; in the working state, one side of the contact plate 225 abuts against one end of the guide rail.

[0042] A first gas rod is provided on the base 221 and the output end of the first cylinder 224 is fixedly connected to the contact plate 225, so that after the guide rail is introduced into the middle of the clamping plate 222 through the feeding device 1, the first cylinder 224 drives the contact plate 225 to abut against the guide rail, so that the thrust applied by the guide rail when the flaring operation is performed by the flaring equipment 61 can be offset by the first cylinder 224, thereby ensuring that the flaring equipment 61 can smoothly flare the guide rail. At the same time, after the guide rail is processed and moved to above the conveyor belt 62, the guide rail can be pushed to move by the first cylinder 224, so that the processed guide rail can be moved onto the conveyor belt 62, thereby avoiding the processed guide rail not being transported out by the conveyor belt 62.

[0043] Reference Figure 5 — Figure 7 As shown: the control component 23 includes a second cylinder 231, a connecting slide 232, a scissors-fork telescopic frame 233 and a first connecting rod 234; the second cylinder 231 is fixed to the bottom end of the base 221; the connecting slide 232 is arranged at the bottom of the base 221 and is slidably connected to the base 221, and the connecting slide 232 is fixedly connected to the output end of the second cylinder 231; the head and tail ends of the scissors-fork telescopic frame 233 are respectively slidably connected to the bottom of a pair of clamping plates 222; a pair of first connecting rods 234 are provided, one end of the pair of first connecting rods 234 is respectively rotatably connected to the connecting slide 232, and the other end of the pair of first connecting rods 234 is respectively rotatably connected to the tail end of the scissors-fork telescopic frame 233.

[0044] When the unprocessed guide rail is transported to the top of the base 221 through the feeding device 1, the second cylinder 231 set at the bottom of the base 221 starts to work and drives the connecting slide 232 to move, so that a pair of first connecting rods 234 drive the head end of the scissors-fork telescopic frame 233 to gradually move away from the first connecting rod 234, so that the pair of clamping plates 222 approach each other and clamp the guide rail. When the guide rail is processed by the expanding equipment 61 and moved to the top of the conveyor belt 62, the second cylinder 231 drives the connecting slide 232 to move in the opposite direction, so that the pair of clamping plates 222 move away from each other, so that the guide rail can be transported out by the conveyor belt 62.

[0045] Reference Figure 8 — Figure 10As shown: the feeding device 1 includes a support frame 11, a displacement track 12, a mounting plate 13, a material transport component 14 and a driving component 15; the material transport component 14 includes a mounting seat 141, a connecting frame 142, a rotating shaft 143 and a roller 144; the support frame 11 is arranged on one side of the turntable 21 and is opposite to a fixed component 22; the displacement track 12 is arranged on the support frame 11; at least two mounting plates 13 are provided and are arranged on both sides of the support frame 11 opposite to each other; at least four mounting seats 141 are provided and are respectively arranged in pairs. Relatively, the mounting seat 141 is arranged on the inner side of the mounting plate 13, and is fixedly connected to the mounting plate 13 through the first connecting component 4; one end of the connecting frame 142 is arranged on the mounting seat 141 and is rotatably connected to the mounting seat 141, and the other end of the connecting frame 142 is rotatably connected to the rotating shaft 143; the roller 144 is arranged on the rotating shaft 143 and is fixedly connected to the rotating shaft 143. In the working state, the roller 144 abuts against the side surface of the guide rail, and the roller 144 drives the guide rail to move through the driving component 15.

[0046] When the guide rail needs to be expanded, the guide rail is first placed on the displacement track 12 and the surface of the guide rail is abutted against the roller 144. Then, the driving component 15 drives the roller 144 to rotate, so that the guide roller moves on the displacement track 12. At the same time, the material transport components 14 are arranged on the inner side of the mounting plate 13 opposite to each other, so that there are two pairs of material transport components 14 on both sides of the guide rail to drive the guide rail to move, and the two pairs of material transport components 14 are respectively arranged at both ends of the length direction of the mounting plate 13, so that the material transport component 14 can smoothly transport the guide rail to the inside of the base 221 and abut one end of the guide rail against the base 221.

[0047] Reference Figure 10 As shown: the material transport assembly 14 also includes a gas spring 145 and a second connecting rod 146; a convex shaft is provided at the bottom of the connecting frame 142; the gas spring 145 is arranged at the bottom end of the mounting seat 141; the second connecting rod 146 is arranged at the bottom of the mounting seat 141, one end of the second connecting rod 146 is rotatably connected to the convex shaft of the connecting frame 142, and the other end of the second connecting rod 146 is rotatably connected to the output end of the gas spring 145.

[0048] When the unprocessed guide rail is placed on the displacement track 12 and the two sides of the guide rail abut against the roller 144, the connecting frame 142 follows the roller 144 to undergo angular deflection, and the second connecting rod 146 rotatably connected to the bottom of the connecting frame 142 moves synchronously, thereby driving the output end of the gas spring 145 to retract inward. When the angular deflection of the connecting frame 142 is completed, the gas spring 145 applies a force to the second connecting rod 146, thereby making the roller 144 completely fit on both sides of the guide rail, thereby ensuring that the roller 144 can move the guide rail smoothly under the drive of the drive assembly 15.

[0049] Reference Figure 10 As shown: the drive assembly 15 includes a servo motor 151, a first pulley 152 and a second pulley 153; the servo motor 151 is fixed to one side of the connecting frame 142, and the output end of the servo motor 151 is located at the bottom of the connecting frame 142 and is fixedly connected to the first pulley 152; the second pulley 153 is arranged at the bottom of the connecting frame 142 and is fixedly connected to the rotating shaft 143; a first synchronous belt 154 is rotatably installed between the first pulley 152 and the second pulley 153.

[0050] When the two sides of the guide rail abut against the roller 144, the servo motor 151 starts to work, thereby driving the roller 144 to rotate synchronously through the first synchronous belt 154, so that the roller 144 drives the guide rail to move. At the same time, by controlling the servo motor 151, the moving speed of the guide rail can be precisely controlled, thereby avoiding the guide rail from moving too fast and causing one end of the guide rail to hit the base 221, thereby preventing the guide rail from being damaged.

[0051] Reference Figure 5 As shown, slide rails 2211 are provided on both sides of the base 221, and a slide groove 211 that cooperates with the slide rails 2211 is provided on the turntable 21; a telescopic component 3 for driving the base 221 to move along the slide groove 211 is also provided at the bottom of the turntable 21.

[0052] The base 221 can move on the turntable 21 through the cooperation of the slide rail 2211 and the slide groove 211, so that when the guide rail is fed from the feeding device 1, the base 221 can be driven by the telescopic component 3 to approach the feeding device 1, so that the guide rail can be smoothly fed into the fixed component 22. When the guide rail is clamped and fixed, the telescopic component 3 drives the base 221 to return to the initial position, so that the guide rail can perform subsequent corresponding processing operations. At the same time, the base 221 slides in the slide groove 211 of the turntable 21 through the slide rails 2211 on both sides, so that the base 221 can ensure that it will not move smoothly.

[0053] Reference Figure 7 As shown: the telescopic assembly 3 includes a fixed truss 31, a third cylinder 32 and a cylinder mounting seat 33141; the fixed truss 31 is arranged at the bottom of the base 221 and is fixedly connected to the base 221 through the second connecting assembly 5; the tail of the third cylinder 32 is rotatably connected to the cylinder mounting seat 33141, and the output end of the third cylinder 32 is rotatably connected to the fixed truss 31; the cylinder mounting seat 33141 is fixedly connected to the bottom of the turntable 21.

[0054] The fixed truss 31 is provided with a column, so that there is a space between the fixed truss 31 and the base 221, thereby avoiding the control component 23 set at the bottom of the base 221. When the base 221 needs to move, the third cylinder 32 applies a thrust to the fixed truss 31, thereby driving the base 221 to move along the slide groove 211 of the turntable 21, so that the base 221 gradually approaches the feeding device 1, thereby ensuring that the guide rail can smoothly enter the interior of the base 221 and be clamped and fixed by the clamping plate 222. After that, the third cylinder 32 begins to retract, thereby driving the base 221 to move in the opposite direction along the slide groove 211.

[0055] Reference Figure 9 As shown: the first connecting component 4 includes a first screw hole 41, a second screw hole 42 and a first bolt 43; the first screw hole 41 is set on the mounting plate 13; the second screw hole 42 is set on the mounting seat 141, and the second screw hole 42 corresponds to the first screw hole 41 one by one; the first screw hole 41 and the second screw hole 42 are detachably fixedly connected by the first bolt 43.

[0056] The material transport component 14 is fixed to the inner side of the mounting plate 13 through the threaded connection of the first connecting component 4, thereby ensuring that the material transport component 14 can be quickly installed on the mounting plate 13 and ensuring the stable installation of the material transport component 14. At the same time, when the material transport component 14 needs maintenance and repair after long-term use, it can be quickly disassembled for replacement and repair, thereby improving the working efficiency of the equipment.

[0057] Reference Figure 5 As shown: the second connecting component 5 includes a third screw hole 51, a fourth screw hole 52 and a second bolt 53; the third screw hole 51 is set at the top of the base 221 and passes through the bottom of the base 221; the fourth screw hole 52 is set on the fixed truss 31, and the fourth screw hole 52 corresponds to the third screw hole 51 one by one; the third screw hole 51 and the fourth screw hole 52 are detachably fixedly connected by the second bolt 53.

[0058] The third screw hole 51 is a countersunk hole, so that when the second screw hole 42 is installed and fixed, the bolt head of the second bolt 53 can sink into the third screw hole 51, thereby ensuring that the surface of the top of the base 221 is flat and beautiful. The fixed truss 31 is fixedly connected to the base 221 through the second connecting component 5, so that when the control component 23 needs to be inspected, the fixed truss 31 can be quickly disassembled, so that the control component 23 can be maintained and inspected.

[0059] The above embodiments merely represent one or several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the spirit of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A guide rail end flaring device, comprising a feeding device (1) and a clamping device (2), wherein the clamping device (2) comprises a turntable (21) and a fixing assembly (22) disposed on the turntable (21) for fixing the guide rail; It is characterized by: The fixing assembly (22) includes a base (221), a clamping plate (222) and a guide column (223); At least three bases (221) are provided and are distributed on the turntable (21) along the axis of the turntable (21). The bases (221) are slidably connected to the turntable (21), and the sliding direction is parallel to the radial direction of the turntable (21). The clamping plate (222) is relatively arranged inside the base (221); One end of the guide column (223) is fixedly connected to the clamping plate (222), and the other end of the guide column (223) is clearance-matched with the base (221); The clamping device (2) further includes a control component (23) for driving a pair of clamps to move closer to or farther from each other; The control assembly (23) includes a second cylinder (231), a connecting slide rod (232), a scissor-fork type telescopic frame (233) and a first connecting rod (234); The second cylinder (231) is fixed to the bottom end of the base (221); The connecting slide bar (232) is arranged at the bottom of the base (221) and is slidably connected to the base (221), and the connecting slide bar (232) is fixedly connected to the output end of the second cylinder (231); The head and tail ends of the scissor-fork type telescopic frame (233) are respectively slidably connected to the bottom of a pair of clamping plates (222); A pair of first connecting rods (234) are provided, one end of the pair of first connecting rods (234) is respectively rotatably connected to the connecting slide rod (232), and the other end of the pair of first connecting rods (234) is respectively rotatably connected to the tail end of the scissor fork type telescopic frame (233).

2. A guide rail end expansion device according to claim 1, characterized in that: The fixing assembly (22) further includes a first cylinder (224) and a contact plate (225); The first air cylinder (224) is fixed to the top of the base (221), and the output end of the first air rod is fixedly connected to the contact plate (225); In the working state, one side of the contact plate (225) contacts one end of the guide rail.

3. The guide rail end expansion device according to claim 1, characterized in that: The feeding device (1) comprises a support frame (11), a displacement track (12), a mounting plate (13), a material transport component (14) and a driving component (15); The material transport assembly (14) includes a mounting seat (141), a connecting frame (142), a rotating shaft (143) and a roller (144); The support frame (11) is arranged on one side of the turntable (21) and is opposite to a fixed component (22); The displacement track (12) is arranged on the support frame (11); At least two mounting plates (13) are provided and are arranged oppositely on both sides of the support frame (11); At least four mounting seats (141) are provided and are arranged on the inner side of the mounting plate (13) in pairs and opposite to each other. The mounting seats (141) are fixedly connected to the mounting plate (13) via a first connecting assembly (4). One end of the connecting frame (142) is arranged on the mounting seat (141) and is rotatably connected to the mounting seat (141), and the other end of the connecting frame (142) is rotatably connected to the rotating shaft (143); The roller (144) is arranged on the rotating shaft (143) and is fixedly connected to the rotating shaft (143). In the working state, the roller (144) and the side surface of the guide rail abut against each other, and the roller (144) drives the guide rail to move through the driving assembly (15).

4. A guide rail end expansion device according to claim 3, characterized in that: The material transport assembly (14) further includes a gas spring (145) and a second connecting rod (146); The bottom of the connecting frame (142) is provided with a protruding shaft; The gas spring (145) is arranged at the bottom end of the mounting seat (141); The second connecting rod (146) is arranged at the bottom of the mounting seat (141), one end of the second connecting rod (146) is rotatably connected to the convex shaft of the connecting frame (142), and the other end of the second connecting rod (146) is rotatably connected to the output end of the gas spring (145).

5. The guide rail end expansion device according to claim 3, characterized in that: The driving assembly (15) includes a servo motor (151), a first pulley (152) and a second pulley (153); The servo motor (151) is fixed on one side of the connecting frame (142), and the output end of the servo motor (151) is located at the bottom of the connecting frame (142) and is fixedly connected to the first pulley (152); The second pulley (153) is arranged at the bottom of the connecting frame (142) and is fixedly connected to the rotating shaft (143); A first synchronous belt (154) is rotatably installed between the first pulley (152) and the second pulley (153).

6. The guide rail end expansion device according to claim 1, characterized in that: Slide rails (2211) are respectively provided on both sides of the base (221), and a slide groove (211) that cooperates with the slide rails (2211) is provided on the turntable (21); The bottom of the turntable (21) is also provided with a telescopic assembly (3) for driving the base (221) to move along the slide groove (211).

7. The guide rail end expansion device according to claim 6, characterized in that: The telescopic assembly (3) includes a fixed truss (31), a third cylinder (32) and a cylinder mounting seat (33) (141); The fixed truss (31) is arranged at the bottom of the base (221) and is fixedly connected to the base (221) via a second connecting assembly (5); The tail of the third cylinder (32) is rotatably connected to the cylinder mounting seat (33) (141), and the output end of the third cylinder (32) is rotatably connected to the fixed truss (31); The cylinder mounting base (33) (141) is fixedly connected to the bottom of the turntable (21).

8. The guide rail end expansion device according to claim 3, characterized in that: The first connecting assembly (4) includes a first screw hole (41), a second screw hole (42) and a first bolt (43); The first screw hole (41) is provided on the mounting plate (13); The second screw hole (42) is provided on the mounting seat (141), and the second screw hole (42) corresponds to the first screw hole (41) one by one; The first screw hole (41) and the second screw hole (42) are detachably fixedly connected via a first bolt (43).

9. The guide rail end expansion device according to claim 7, characterized in that: The second connecting assembly (5) includes a third screw hole (51), a fourth screw hole (52) and a second bolt (53); The third screw hole (51) is provided at the top of the base (221) and extends through the bottom of the base (221); The fourth screw hole (52) is provided on the fixed truss (31), and the fourth screw hole (52) corresponds to the third screw hole (51) one by one; The third screw hole (51) and the fourth screw hole (52) are detachably fixedly connected via a second bolt (53).

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