A standard section feeding clamping device

Abstract

The present invention discloses a standard section feeding clamping device, comprising a mounting frame, a first clamping mechanism, a second clamping mechanism and a trigger switch; the first clamping mechanism comprises two large clamping claws with hooks and a first driving mechanism, the two large clamping claws are respectively connected to the mounting frame for rotation, and the first driving mechanism is used to drive the two large clamping claws to rotate so that the two large clamping claws are close to or away from each other; the second clamping mechanism comprises a support seat, a second driving mechanism and a small clamping claw, a linkage member is installed on the support seat, the base end of the small clamping claw can be rotatably installed on the support seat and connected with the linkage member, and the linkage member can link the small clamping claw to move while sliding; a touch member and a third driving mechanism are installed on the support seat, the trigger switch is electrically connected to the first driving mechanism, and the first driving mechanism is used to drive the two large clamping claws to rotate after the touch member touches the trigger switch. The present invention has good compatibility and reduces manufacturing cost and later maintenance cost.

Description

Technical Field

[0001] The invention relates to the field of standard section automatic production lines, and in particular to a standard section feeding and clamping device. Background Art

[0002] Tower crane, also known as tower machine, is a tower lifting machinery widely used in the construction industry. Standard section is the basic component of tower crane. Standard section is mainly welded together by main pipe, main folding plate, auxiliary folding plate and diagonal web. At present, relatively simple fixtures are generally used to fix standard section parts, and then manual welding is performed. Manual welding is affected by human factors, and its welding efficiency is low, labor intensity is high, welding quality is unstable, it is difficult to ensure the welding quality of each weld, and the quality of standard section is difficult to be reliably guaranteed. In order to solve the above problems, a standard section automatic welding production line has been designed. In order to make the standard section automatic welding production line more convenient, it is necessary to design a workpiece grabbing fixture suitable for the feeding robot system in the standard section automatic welding production line. In the prior art, the automatic loading and unloading of each component and assembly of the standard section requires multiple grippers with different functions, which have problems such as large and multiple structures, high cost, poor compatibility and inconvenient switching. Summary of the invention

[0003] In order to overcome the deficiencies of the prior art, an object of the present invention is to provide a standard section feeding and clamping device with good compatibility, simple structure and low manufacturing cost.

[0004] The purpose of the present invention is achieved by the following technical solutions:

[0005] A standard section feeding clamping device comprises a mounting frame for fixing on the arm of a feeding robot, a first clamping mechanism arranged on the mounting frame, a second clamping mechanism and a trigger switch; the first clamping mechanism comprises two large clamping claws with hooks and a first driving mechanism, the two large clamping claws are respectively rotatably connected to the mounting frame, and the two large clamping claws are separated on both sides of the mounting frame in the form of opposing hooks, the first driving mechanism is used to drive the two large clamping claws to rotate so that the two large clamping claws are close to or away from each other, and the large clamping claws are used to grab the standard section assembly; the second clamping mechanism comprises a support seat arranged on the mounting frame, a second driving mechanism and a small clamping claw arranged on the support seat, the support The seat is provided with a clamping support surface, and a linkage part is installed on the support seat. The linkage part can slide relative to the support seat under the drive of the second driving mechanism, and the base end of the small clamping claw can be rotatably installed on the support seat and cooperated with the linkage part. The linkage part can link the small clamping claw to move toward or away from the clamping support surface while sliding, and the small clamping claw is used to grab standard section items; a touch piece and a third driving mechanism are installed on the support seat, and the touch piece can touch the trigger switch under the drive of the third driving mechanism, and the trigger switch is electrically connected to the first driving mechanism, and the first driving mechanism is used to drive the two large clamping claws to rotate after the touch piece touches the trigger switch.

[0006] Furthermore, the linkage member is provided with a rack, and the base end of the small clamping claw is provided with a gear portion, and the gear portion is meshed with the rack.

[0007] Furthermore, a clamping groove is provided at the head end of the small clamping claw, and the opening direction of the clamping groove faces the clamping support surface.

[0008] Furthermore, a first hinge hole is provided at the center position of the gear part, the gear part is hinged to the support seat through a hinge shaft, a gear is provided on the circumferential surface of the gear part, the support seat is provided with a first slide groove for slidingly cooperating with the linkage part, the first slide groove is extended along the sliding direction of the linkage part, the support seat is provided with a second hinge hole adapted to the hinge shaft and a rotating hole adapted to the gear part, and the rotating hole is communicated with the first slide groove.

[0009] Furthermore, it also includes a moving part and a fourth driving mechanism, the moving part is slidably installed on the support seat, the moving part is provided with a lifting cavity adapted to the touch member, the touch member is slidably installed in the lifting cavity, the first driving mechanism includes a first cylinder and a second cylinder, two large clamping claws include a first large clamping claw driven and connected to the first cylinder and a second large clamping claw driven and connected to the second cylinder, the trigger switch includes a first trigger switch and a second trigger switch, the third driving mechanism is used to drive the touch member to extend out of the lifting cavity so that the touch member can touch the first trigger switch, the first trigger switch is electrically connected to the first cylinder, and the fourth driving mechanism is used to drive the moving part to slide relative to the support seat so that the end of the moving part can touch the second trigger switch, and the second trigger switch is electrically connected to the second cylinder.

[0010] Further, the mounting frame includes a first mounting plate, a second mounting plate and a vertical plate assembly for connecting the first mounting plate and the second mounting plate, the first mounting plate is located above the second mounting plate, the first mounting plate is fixed to the arm of the loading robot, the vertical plate assembly includes two first vertical plates installed on the left side below the first mounting plate and two second vertical plates installed on the right side below the first mounting plate, the bottoms of the two first vertical plates are connected to the second mounting plate through a first connecting rod, and the two second vertical plates are connected to the second mounting plate through a second connecting rod; the left sides of the two first vertical plates are respectively hinged with a first large clamping claw, the two first large clamping claws are connected through a third connecting rod, the right sides of the two second vertical plates are respectively hinged with a second large clamping claw, and the two second large clamping claws are connected through a fourth connecting rod; the cylinder body of the first cylinder is fixed on the first connecting rod, the piston rod of the first cylinder is fixedly connected to the third connecting rod, the cylinder body of the second cylinder is fixed on the second connecting rod, and the piston rod of the second cylinder is fixedly connected to the fourth connecting rod.

[0011] Furthermore, the second mounting plate is provided with a first positioning plate for fixing the first trigger switch and a second positioning plate for fixing the second trigger switch.

[0012] Furthermore, a sliding bar is provided on the outer periphery of the movable member, and a second sliding groove matched with the sliding bar is provided on the inner peripheral wall of the support seat, and the second sliding groove is extended along the sliding direction of the movable member.

[0013] Furthermore, it also includes a mounting block and a lifting cylinder, wherein clamping rods are provided on both sides of the mounting block, and the mounting frame is provided with a clamping groove for matching with the clamping rods, the support seat is installed below the mounting block, the cylinder body of the lifting cylinder is fixed on the mounting frame, and the piston rod of the lifting cylinder is located below the clamping rod. The mounting block can rise to the clamping rod and clamp with the clamping groove under the drive of the lifting cylinder.

[0014] Furthermore, the trigger switch is a mechanical valve or a solenoid valve.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The present invention uses a small clamping claw to grab the standard section items and place them on the corresponding position of the tooling. When the small clamping claw finishes grabbing all the standard section items, the third drive mechanism drives the touch piece to touch the trigger switch, and the trigger switch controls the first drive mechanism to start, and the first drive mechanism drives the large clamping claw to take the standard section assembly out of the corresponding position of the tooling and place it at the designated position. The large clamping claw and the small clamping claw provided by the present invention are automatically switched through the trigger switch, and the small clamping claw cooperates with the clamping support surface, so that it can be compatible with a variety of different workpieces, reducing the manufacturing cost and the subsequent maintenance cost. In addition, the device has a simple and compact structure, which saves space costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of a standard section feeding and clamping device provided by the present invention;

[0018] Figure 2 A schematic diagram of the assembly of the first clamping mechanism and the mounting frame provided by the present invention;

[0019] Figure 3 A schematic diagram of the assembly of the second clamping mechanism and the mounting block provided by the present invention;

[0020] Figure 4 A schematic diagram of a second clamping mechanism provided by the present invention;

[0021] Figure 5 A first cross-sectional view of a second clamping mechanism provided by the present invention;

[0022] Figure 6 A second cross-sectional view of a second clamping mechanism provided by the present invention;

[0023] Figure 7 A schematic diagram of a support base provided by the present invention;

[0024] In the figure: 10, mounting frame; 101, first mounting plate; 102, second mounting plate; 103, first vertical plate; 104, second vertical plate; 105, first connecting rod; 106, second connecting rod; 107, third connecting rod; 108, fourth connecting rod; 109, slot; 20, first clamping mechanism; 201, first large clamping claw; 202, second large clamping claw; 203, first cylinder; 204, second cylinder; 30, second clamping mechanism; 300, connecting block; 301, support seat; 3011, clamping support surface; 302, second clamping claw; 303, first cylinder; 304, second cylinder; 305, second clamping mechanism; 306, connecting block; 307, support seat; 308, clamping support surface; 309, second clamping mechanism; 301, first clamping claw; 309, second clamping claw; 301, second clamping claw; 302, second clamping claw; 303, first cylinder; 304, second cylinder; 305, second clamping mechanism; 306, first clamping claw; 307, second clamping claw; 308, second clamping mechanism; 309, second clamping mechanism; 301, first clamping claw; 309, second clamping claw; 301, second clamping claw; 301, second clamping claw; 302, second clamping claw; 303, first cylinder; 304, second cylinder; 305, second clamping mechanism; 306, first clamping claw; 307, second clamping claw; 308, second clamping mechanism; 309, first clamping claw; 309, second clamping claw; 301, first clamping claw; 308, second clamping claw; 309, second clamping mechanism; 301 012, first slide groove; 3013, rotating hole; 3014, second hinge hole; 3015, second slide groove; 302, small clamping claw; 3021, gear part; 3022, clamping groove; 303, linkage part; 3031, rack; 304, second drive mechanism; 305, touch part; 306, third drive mechanism; 307, moving part; 3071, slide bar; 308, fourth drive mechanism; 40, first trigger switch; 50, second trigger switch; 60, mounting block; 601, clamping rod; 70, lifting cylinder. DETAILED DESCRIPTION

[0025] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0026] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "horizontal", "vertical", "top", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first", "second", "one", "another" and the like are used to distinguish similar elements, and these terms and other similar terms are not intended to limit the scope of the present invention.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be internally connected between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. In each of the drawings, the same or corresponding elements are marked with corresponding figure numbers (for example, the elements marked with "1XX" and "2XX" have the same structure and similar functions).

[0028] like Figure 1-7 As shown, a standard section feeding clamping device provided by the present invention includes a mounting frame 10 for fixing on the arm of a feeding robot, a first clamping mechanism 20 arranged on the mounting frame 10, a second clamping mechanism 30 and a trigger switch; the first clamping mechanism 20 includes two large clamping claws with hooks and a first driving mechanism, the two large clamping claws are respectively rotatably connected to the mounting frame 10, and the two large clamping claws are separated on both sides of the mounting frame 10 in the form of opposing hooks, the first driving mechanism is used to drive the two large clamping claws to rotate so that the two large clamping claws are close to or away from each other, and the large clamping claws are used to grab the standard section assembly; the second clamping mechanism 30 includes a support seat 301 arranged on the mounting frame 10, a second driving mechanism 304 and a small clamping claw 302 arranged on the support seat 301, and the support seat 301 is provided with a clamping support The supporting surface 3011, a linkage part 303 is installed on the supporting seat 301, and the linkage part 303 can slide relative to the supporting seat 301 when driven by the second driving mechanism 304. The base end of the small clamping claw 302 can be rotatably installed on the supporting seat 301 and cooperated with the linkage part 303. The linkage part 303 can link the small clamping claw 302 to move toward or away from the clamping supporting surface 3011 while sliding, and the small clamping claw is used to grab standard section items; a touch part 305 and a third driving mechanism 306 are installed on the supporting seat 301, and the touch part 305 can touch the trigger switch when driven by the third driving mechanism 306, and the trigger switch is electrically connected to the first driving mechanism, and the first driving mechanism is used to drive the two large clamping claws to rotate after the touch part 305 touches the trigger switch.

[0029] In this embodiment, the standard section feeding and clamping device is provided with a large clamping claw and a small clamping claw 302, that is, the device has double grippers, the small clamping claw 302 is used to grasp the standard section single product, and the large clamping claw is used to grasp the standard section assembly, that is, the device has grippers with two functions. When loading, only one device is needed to complete the loading process, saving space. The working principle is as follows: the second driving mechanism 304 drives the linkage part 303 to slide, and the linkage part 303 drives the small clamping claw 302 to move while sliding, so that the small clamping claw 302 moves in the direction close to or away from the clamping support surface 3011, and the small clamping claw 302 and the clamping support surface 3011 cooperate to clamp the standard section workpiece, and then the loading robot puts the workpiece into the corresponding position of the tooling. When the small clamping claw 302 completes grabbing all standard section items, the third driving mechanism 306 drives the touch part 305 to touch the trigger switch, and the trigger switch controls the first driving mechanism to start, and the first driving mechanism drives the large clamping claw to take the standard section assembly out of the corresponding position of the tooling and place it at the specified position, thereby completing the loading and grabbing process.

[0030] The large clamping claw and the small clamping claw 302 provided by the present invention can be automatically switched by triggering a switch, and the small clamping claw 302 cooperates with the clamping support surface 3011, so that it can be compatible with a variety of different workpieces, reducing the manufacturing cost and the subsequent maintenance cost. The device has a simple and compact structure and saves space cost.

[0031] Preferably, the linkage member 303 is provided with a rack 3031 , and the base end of the small clamping claw 302 is provided with a gear portion 3021 , and the gear portion 3021 is meshed with the rack 3031 .

[0032] Specifically, a first hinge hole is provided at the center position of the gear part 3021, and the gear part 3021 is hinged on the support seat 301 through a hinge shaft. A gear is provided on the circumferential surface of the gear part 3021, and the support seat 301 is provided with a first slide groove 3012 for slidingly cooperating with the linkage part 303. The first slide groove 3012 is extended along the sliding direction of the linkage part 303. A second hinge hole 3014 adapted to the hinge shaft and a rotating hole 3013 adapted to the gear part 3021 are provided on the support seat 301, and the rotating hole 3013 is communicated with the first slide groove 3012.

[0033] Specifically, the second driving mechanism 304 is preferably a cylinder, a cylinder body of which is fixedly connected to the support seat 301 , and a piston rod of which is fixedly connected to the linkage member 303 .

[0034] Preferably, the head end of the small clamping claw 302 is provided with a clamping groove 3022, and the opening direction of the clamping groove 3022 faces the clamping support surface 3011. Through the matching of the clamping groove 3022 and the clamping support surface 3011, the small clamping claw 302 can grasp different workpieces and improve the grasping stability.

[0035] In this embodiment, the linkage member 303 is a long rectangular block, the first slide groove 3012 on the support seat 301 is adapted to the long rectangular block, and the rack 3031 is arranged on the upper surface of the long rectangular block. The linkage process is: the cylinder drives the piston rod to move downward, and then the piston rod pushes the linkage member 303 to move downward. Since the gear part 3021 at the base end of the small clamping claw 302 is meshed with the linkage member 303, and the small clamping claw 302 is hinged on the support seat 301, the linkage member 303 moves downward and the small clamping claw 302 moves upward, that is, the small clamping claw 302 moves in a direction away from the clamping support surface 3011, thereby loosening the workpiece; when the linkage member 303 moves upward, the small clamping claw 302 moves downward, that is, the small clamping claw 302 moves in a direction close to the clamping support surface 3011, thereby clamping the workpiece.

[0036] Preferably, the clamping small holding claws are provided with two. By providing two small holding claws 302, the stability of grasping is improved, and the workpiece is prevented from falling from the small holding claws 302 during the loading process.

[0037] Preferably, this embodiment further includes a moving member 307 and a fourth driving mechanism 308, the moving member 307 is slidably mounted on the support seat 301, the moving member 307 is provided with a lifting inner cavity adapted to the touch member 305, the touch member 305 is slidably mounted in the lifting inner cavity, the first driving mechanism includes a first cylinder 203 and a second cylinder 204, two large clamping claws include a first large clamping claw 201 driven and connected to the first cylinder 203 and a second large clamping claw 202 driven and connected to the second cylinder 204, the trigger switch The switch includes a first trigger switch 40 and a second trigger switch 50. The third driving mechanism 306 is used to drive the touch member 305 to extend out of the lifting cavity so that the touch member 305 can touch the first trigger switch 40. The first trigger switch 40 is electrically connected to the first cylinder 203. The fourth driving mechanism 308 is used to drive the moving member 307 to slide relative to the support seat 301 so that the end of the moving member 307 can touch the second trigger switch 50. The second trigger switch 50 is electrically connected to the second cylinder 204.

[0038] In this embodiment, the first large clamping claw 201 is driven by the first cylinder 203, and the second large clamping claw 202 is driven by the second cylinder 204. When the small clamping claw 302 completes the grasping process, the third driving mechanism 306 drives the touch member 305 to extend out of the moving member 307, and then the end of the touch member 305 touches the first trigger switch 40. At the same time, the fourth driving mechanism 308 drives the moving member 307 to move toward the direction close to the second trigger switch 50, and then the outer wall of the moving member 307 touches the second trigger switch 50. In this way, the first cylinder 203 and the second cylinder 204 can be started at the same time, so that the first large clamping claw 201 and the second large clamping claw 202 can rotate at the same time.

[0039] Preferably, the trigger switch is a mechanical valve or a solenoid valve. In this embodiment, the first cylinder 203 and the second cylinder 204 respectively correspond to a mechanical valve, and the mechanical valve controls the air intake of the first cylinder 203 and the second cylinder 204.

[0040] Preferably, the mounting frame 10 includes a first mounting plate 101, a second mounting plate 102 and a vertical plate assembly for connecting the first mounting plate 101 and the second mounting plate 102, the first mounting plate 101 is located above the second mounting plate 102, the first mounting plate 101 is fixed to the arm of the feeding robot, the vertical plate assembly includes two first vertical plates 103 installed on the left side below the first mounting plate 101 and two second vertical plates 104 installed on the right side below the first mounting plate 101, the bottoms of the two first vertical plates 103 are connected to the second mounting plate 102 through a first connecting rod 105, and the two second vertical plates 104 are connected to the second mounting plate 102 through a second connecting rod 106. The mounting plate 102 is connected; the left sides of the two first vertical plates 103 are respectively hinged with a first large clamping claw 201, and the two first large clamping claws 201 are connected by a third connecting rod 107; the right sides of the two second vertical plates 104 are respectively hinged with a second large clamping claw 202, and the two second large clamping claws 202 are connected by a fourth connecting rod 108; the cylinder body of the first cylinder 203 is fixed on the first connecting rod 105, the piston rod of the first cylinder 203 is fixedly connected to the third connecting rod 107, the cylinder body of the second cylinder 204 is fixed on the second connecting rod 106, and the piston rod of the second cylinder 204 is fixedly connected to the fourth connecting rod 108.

[0041] Specifically, a first fixed seat is sleeved on the middle position of the first connecting rod 105, a first connecting piece is sleeved on the middle position of the third connecting rod 107, the cylinder body of the first cylinder 203 is fixed on the first fixed seat, and the piston rod of the first cylinder 203 is fixedly connected to the first connecting piece; a second fixed seat is sleeved on the middle position of the second connecting rod 106, a second connecting piece is sleeved on the middle position of the fourth connecting rod 108, the cylinder body of the second cylinder 204 is fixed on the second fixed seat, and the piston rod of the second cylinder 204 is fixedly connected to the second connecting piece.

[0042] In this embodiment, two first large clamping claws 201 are provided, and the two first large clamping claws 201 are driven to rotate by the first cylinder 203, and two second large clamping claws 202 are provided, and the two second large clamping claws 202 are driven to rotate by the second cylinder 204. The overall structure is compact and the layout is simple. By providing two first large clamping claws 201 and two second large clamping claws 202, the clamping stability is further improved.

[0043] Preferably, a first positioning plate for fixing the first trigger switch 40 and a second positioning plate for fixing the second trigger switch 50 are provided on the second mounting plate 102 .

[0044] Preferably, a slide bar 3071 is provided on the outer periphery of the moving member 307, and a second slide groove 3015 adapted to the slide bar 3071 is provided on the inner peripheral wall of the support seat 301, and the second slide groove 3015 is extended along the sliding direction of the moving member 307. The slide bar 3071 and the second slide groove 3015 are provided to improve the sliding smoothness of the moving member 307. In this embodiment, the fourth driving mechanism 308 is preferably a fourth cylinder, whose cylinder body is fixed on the support seat 301, and whose piston rod is fixedly connected to the moving member 307.

[0045] Preferably, it further comprises a mounting block 60 and a lifting cylinder 70, wherein the mounting block 60 is provided with a clamping rod 601 on both sides, the mounting frame 10 is provided with a clamping groove 109 adapted to the clamping rod 601, the support seat 301 is installed below the mounting block 60, the cylinder body of the lifting cylinder 70 is fixed on the mounting frame 10, the piston rod of the lifting cylinder 70 is located below the clamping rod 601, and the mounting block 60 can be driven by the lifting cylinder 70 to rise to the clamping rod 601 and clamp the clamping groove 109. In this embodiment, a connecting block 300 is installed below the mounting block 60, and the support seat 301 is installed on the connecting block 300. When the lifting cylinder 70 drives the piston rod to move upward, the end of the piston rod pushes the mounting block 60 to move upward, and then the clamping rod 601 of the mounting block 60 is clamped into the clamping groove 109, thereby fixing the mounting block 60 on the mounting frame 10.

[0046] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A standard section feeding and clamping device, characterized in that: It includes a mounting frame for fixing on the arm of the feeding robot, a first clamping mechanism arranged on the mounting frame, a second clamping mechanism and a trigger switch; the first clamping mechanism includes two large clamping claws with hooks and a first driving mechanism, the two large clamping claws are respectively rotatably connected to the mounting frame, and the two large clamping claws are separated on both sides of the mounting frame in the form of relative hooks, the first driving mechanism is used to drive the two large clamping claws to rotate so that the two large clamping claws are close to or away from each other, and the large clamping claws are used to grab the standard section assembly; the second clamping mechanism includes a support seat arranged on the mounting frame, a second driving mechanism and a small clamping claw arranged on the support seat, and the support seat is provided with a clamping support A supporting surface, a linkage piece is installed on the support seat, and the linkage piece can slide relative to the support seat when driven by the second driving mechanism. The base end of the small clamping claw can be rotatably installed on the support seat and cooperated with the linkage piece. The linkage piece can link the small clamping claw to move toward or away from the clamping supporting surface while sliding, and the small clamping claw is used to grab standard section items; a touch piece and a third driving mechanism are installed on the support seat, and the touch piece can touch the trigger switch when driven by the third driving mechanism, and the trigger switch is electrically connected to the first driving mechanism, and the first driving mechanism is used to drive the two large clamping claws to rotate after the touch piece touches the trigger switch.

2. A standard section feeding and clamping device as claimed in claim 1, characterized in that: The linkage member is provided with a rack, and the base end of the small clamping claw is provided with a gear portion, and the gear portion is meshed with the rack.

3. A standard section feeding and clamping device as claimed in claim 1, characterized in that: A clamping groove is provided at the head end of the small clamping claw, and the opening direction of the clamping groove faces the clamping support surface.

4. A standard section feeding and clamping device as claimed in claim 2, characterized in that: A first hinge hole is provided at the center position of the gear part, the gear part is hinged to the support seat through a hinge shaft, a gear is provided on the circumferential surface of the gear part, the support seat is provided with a first slide groove for slidingly cooperating with the linkage part, the first slide groove is extended along the sliding direction of the linkage part, the support seat is provided with a second hinge hole adapted to the hinge shaft and a rotating hole adapted to the gear part, the rotating hole is communicated with the first slide groove.

5. A standard section feeding and clamping device as claimed in claim 1, characterized in that: It also includes a moving part and a fourth driving mechanism, the moving part is slidably installed on the support seat, the moving part is provided with a lifting cavity adapted to the touch member, the touch member is slidably installed in the lifting cavity, the first driving mechanism includes a first cylinder and a second cylinder, two large clamping claws include a first large clamping claw driven and connected to the first cylinder and a second large clamping claw driven and connected to the second cylinder, the trigger switch includes a first trigger switch and a second trigger switch, the third driving mechanism is used to drive the touch member to extend out of the lifting cavity so that the touch member can touch the first trigger switch, the first trigger switch is electrically connected to the first cylinder, and the fourth driving mechanism is used to drive the moving part to slide relative to the support seat so that the end of the moving part can touch the second trigger switch, and the second trigger switch is electrically connected to the second cylinder.

6. A standard section feeding and clamping device as claimed in claim 5, characterized in that: The mounting frame includes a first mounting plate, a second mounting plate and a vertical plate assembly for connecting the first mounting plate and the second mounting plate, the first mounting plate is located above the second mounting plate, the first mounting plate is fixed to the arm of the loading robot, the vertical plate assembly includes two first vertical plates installed on the left side below the first mounting plate and two second vertical plates installed on the right side below the first mounting plate, the bottoms of the two first vertical plates are connected to the second mounting plate through a first connecting rod, and the two second vertical plates are connected to the second mounting plate through a second connecting rod; the left sides of the two first vertical plates are respectively hinged with a first large clamping claw, the two first large clamping claws are connected through a third connecting rod, the right sides of the two second vertical plates are respectively hinged with a second large clamping claw, and the two second large clamping claws are connected through a fourth connecting rod; the cylinder body of the first cylinder is fixed on the first connecting rod, the piston rod of the first cylinder is fixedly connected to the third connecting rod, the cylinder body of the second cylinder is fixed on the second connecting rod, and the piston rod of the second cylinder is fixedly connected to the fourth connecting rod.

7. A standard section feeding and clamping device as claimed in claim 6, characterized in that: The second mounting plate is provided with a first positioning plate for fixing the first trigger switch and a second positioning plate for fixing the second trigger switch.

8. A standard section feeding and clamping device as claimed in claim 5, characterized in that: A sliding bar is arranged on the outer periphery of the moving member, and a second sliding groove matched with the sliding bar is arranged on the inner peripheral wall of the supporting seat, and the second sliding groove is extended along the sliding direction of the moving member.

9. A standard section feeding and clamping device as claimed in claim 1, characterized in that: It also includes a mounting block and a lifting cylinder, wherein clamping rods are provided on both sides of the mounting block, and the mounting frame is provided with a clamping groove for matching with the clamping rods. The support seat is installed below the mounting block, and the cylinder body of the lifting cylinder is fixed on the mounting frame. The piston rod of the lifting cylinder is located below the clamping rod. The mounting block can rise to the clamping rod and clamp with the clamping groove under the drive of the lifting cylinder.

10. A standard section feeding and clamping device as claimed in claim 1, characterized in that: The trigger switch is a mechanical valve or a solenoid valve.

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