Adjustable automatic clamp for welding front rack of agricultural machine

Abstract

The invention discloses an adjustable automatic clamp for agricultural machine front rack welding. The adjustable automatic clamp comprises a supporting frame and a locking assembly. Moving seats are arranged in the middles of the front end and the rear end of the supporting frame in a sliding mode, symmetrically-distributed clamping units are arranged at the upper ends of the two moving seats, a movable bumper fixing mechanism is arranged at the right end of the supporting frame, a connecting beam fixing mechanism is arranged at the right end of the supporting frame, and mounting seats are arranged in the middles of the two moving seats. Fourth air cylinders are arranged on the right side faces of the two mounting seats, and lower pressing arms are arranged at the telescopic ends of the two fourth air cylinders; according to the adjustable automatic clamp for agricultural machine front rack welding, the air cylinder drives the pressing block to move to achieve pressing and positioning, the structure is simple, use is convenient, the welding quality and the welding efficiency of the agricultural machine front rack are greatly improved, meanwhile, the positions of all components of the clamp can be adjusted, and the automatic clamp is convenient to use. And the application range of the automatic clamp is greatly expanded.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural machinery production, in particular to an adjustable automatic clamp for welding a front frame of an agricultural machinery. Background Art

[0002] With the continuous advancement of science and technology, modern agricultural production has gradually developed towards agricultural mechanization and intelligence. The application of agricultural machinery technology can not only improve agricultural production efficiency and reduce farmers' labor intensity, but also ensure the quality and safety of agricultural products. The front frame of agricultural machinery is generally made by welding. In order to improve the welding quality, tooling fixtures are used for welding. The existing fixtures generally use the frame to position the components, and then use the manual structure to press the components, and then weld. The manual pressing process is cumbersome, which affects the processing efficiency, and the frame is difficult to adjust. Generally, it can only meet the welding use of the front frame of agricultural machinery of a single size, and its versatility is poor. Summary of the invention

[0003] The technical problem to be solved by the present invention is to overcome the existing defects and provide an adjustable automatic clamp for welding the front frame of agricultural machinery. The clamping and positioning are achieved by driving the pressure block to move by a cylinder. The structure is simple and easy to use, which greatly improves the welding quality and efficiency of the front frame of agricultural machinery. At the same time, the positions of the various components of the clamp can be adjusted, which is convenient for the welding of front frames of agricultural machinery with similar structures but different sizes. The scope of use of the automatic clamp is greatly improved, the good versatility of use reduces the use cost of the automatic clamp, and can effectively solve the problems in the background technology.

[0004] To achieve the above-mentioned object, the present invention provides the following technical solutions: an adjustable automatic clamp for welding the front frame of an agricultural machine, comprising a support frame and a locking assembly; Support frame: There are sliding seats in the middle of both front and rear ends, and the upper ends of the two moving seats are provided with symmetrically distributed clamping units. The right end of the support frame is provided with a movable bumper fixing mechanism, and the right end of the support frame is provided with a connecting beam fixing mechanism. The middle of the two moving seats is provided with a mounting seat, and the right sides of the two mounting seats are provided with cylinders four, and the telescopic ends of the two cylinders four are provided with downward pressure arms; Locking assembly: used for locking the moving seat and the support frame, and the cylinder drives the pressure block to move to achieve clamping and positioning. It has a simple structure and is easy to use, which greatly improves the welding quality and efficiency of the front frame of the agricultural machinery. At the same time, the position of each component of the fixture can be adjusted, which is convenient for the welding of the front frames of agricultural machinery with similar structures and different sizes, greatly improving the use scope of the automatic fixture, and its good versatility reduces the use cost of the automatic fixture.

[0005] Furthermore, the clamping unit includes a support seat, a support shaft, a rotating clamp, a gear and a rack. The support seats are symmetrically arranged at the upper end of the movable seat, and the middle parts of the four support seats are rotatably connected to the support shaft. The outer arc surfaces of the four support shafts are provided with rotating clamps and gears. The gears are located inside the rotating clamp on the same support shaft. The insides of the four support seats are slidably connected with racks, and the four racks are meshed with the vertically corresponding gears to facilitate the fixation of the frame side panels.

[0006] Furthermore, the clamping unit also includes a cylinder 1, which is respectively arranged at one end of the support seat away from the movable seat, and the telescopic end of the cylinder 1 is fixedly connected to the longitudinally adjacent rack to facilitate the control of the movement of the rack.

[0007] Furthermore, the locking assembly includes a support sleeve, a pin shaft and a socket. The support sleeves are respectively arranged at the lower ends of the two movable seats. The interior of the support sleeves is slidably connected with the pin shaft. The front and rear ends of the upper surface of the support frame are provided with evenly distributed sockets. The pin shaft is movably connected to the vertically corresponding socket shaft to facilitate the positioning of the movable seat.

[0008] Furthermore, the locking assembly includes an L-shaped hole, a handle and a spring sheet. The L-shaped holes are respectively opened on the outer arc surfaces of the four support sleeves. The upper ends of the pin shafts are provided with handles. The handles pass through the L-shaped holes to extend out of the outside of the support sleeves. The upper side walls of the lower ends of the four L-shaped holes are provided with spring sheets. The spring sheets are arranged in cooperation with the vertically adjacent handles to facilitate the positioning of the pin shaft.

[0009] Furthermore, the lower end of the pin shaft and the bottom of the insertion hole are both tapered, which has a good positioning effect during insertion.

[0010] Furthermore, the bumper fixing mechanism includes a movable plate, a screw rod, a cylinder, a pressure block, a positioning column and a hand wheel. The movable plate is slidably connected to the left end of the support frame, and symmetrically distributed positioning columns are provided on the right side of the upper surface of the movable plate. The middle part of the movable plate is threadedly connected to a screw rod, and the left end of the outer arc surface of the screw rod is rotatably connected to the support frame. A hand wheel is provided at the left end of the screw rod, and symmetrically distributed cylinders are provided on the upper surface of the movable plate. Pressure blocks are provided on the telescopic ends of the cylinders to facilitate the clamping and positioning of the bumper.

[0011] Furthermore, the connecting beam fixing mechanism includes a U-shaped frame, a support plate, a second screw rod, a second hand wheel, a third cylinder and a second pressure block. The U-shaped frame is arranged on the right side of the lower surface of the support frame, the lower end of the U-shaped frame is slidably connected to the support plate, the middle part of the lower end of the U-shaped frame is threadedly connected to the second screw rod, the right end of the second screw rod is rotatably connected to the right end of the support plate, the right end of the second screw rod is provided with a second hand wheel, the upper surface of the support plate is provided with three symmetrically distributed cylinders, and the telescopic ends of the three cylinders are provided with two pressure blocks to facilitate the clamping and positioning of the connecting beam.

[0012] Furthermore, the upper ends of the mounting seats are provided with guide shafts, and the guide shafts are slidably connected with the vertically corresponding lower pressure arms, providing movement guides for the lower pressure arms.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: the adjustable automatic clamp for welding the front frame of agricultural machinery has the following advantages: 1. The components of the front frame of the agricultural machinery are positioned through the positioning seat and the positioning pin, and then the pressure block is driven by the cylinder to move and clamp, so as to facilitate the positioning and clamping of the parts of the front frame of the agricultural machinery. The structure is simple and easy to use, which greatly improves the welding quality and welding efficiency of the front frame of the agricultural machinery.

[0014] 2. The clamping unit can drive the rotating clamp block to rotate 180 degrees through the cylinder to achieve the clamping of the side plate. After the rotating clamp block is loosened, it can be moved to one side without interfering with the upward movement of the front frame of the agricultural machinery, and it is easy to use.

[0015] 3. During use, the positions of various components of the fixture can be adjusted to facilitate the welding of agricultural machinery front frames of similar structures and different sizes, greatly improving the use scope of the automatic fixture. The good versatility of use reduces the use cost of the automatic fixture for welding the front frame of agricultural machinery. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 This is an enlarged structural schematic diagram of location A of the present invention; Figure 3 It is a schematic cross-sectional structural diagram of the clamping unit of the present invention; Figure 4 This is a schematic diagram of the enlarged structure of B of the present invention; Figure 5 This is a schematic cross-sectional view of the bumper fixing mechanism at position C of the present invention; Figure 6 It is a schematic cross-sectional structure diagram of the connecting beam fixing mechanism of the present invention.

[0017] In the figure: 1 support frame, 2 moving seat, 3 clamping unit, 31 support seat, 32 support shaft, 33 rotating clamp block, 34 gear, 35 rack, 36 cylinder one, 4 locking assembly, 41 support sleeve, 42 pin shaft, 43 socket, 44 L-shaped hole, 45 handle, 46 spring sheet, 5 bumper fixing mechanism, 51 moving plate, 52 screw rod one, 53 cylinder two, 54 pressure block one, 55 positioning column, 56 hand wheel one, 6 connecting beam fixing mechanism, 61 U-shaped frame, 62 support plate, 63 screw rod two, 64 hand wheel two, 65 cylinder three, 66 pressure block two, 7 mounting seat, 8 cylinder four, 9 lower pressure arm, 10 guide shaft. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] See also Figure 1-6 ,This embodiment provides a technical solution: an adjustable automatic clamp for welding the front frame of an agricultural machine, comprising a support frame 1 and a locking assembly 4; Support frame 1: A movable seat 2 is slidably provided in the middle of both front and rear ends thereof, and other parts of the support frame 1 provide a supporting position, and the left and right side panel assemblies of the agricultural machinery frame are placed against the side walls of the movable seat 2, and the engine seat on the side panel corresponds to the U-shaped positioning seat in the middle of the movable seat 2. The upper ends of the two movable seats 2 are provided with symmetrically distributed clamping units 3, and the right end of the support frame 1 is provided with a movable bumper fixing mechanism 5, and the right end of the support frame 1 is provided with a connecting beam fixing mechanism 6. A mounting seat 7 is provided in the middle of the two movable seats 2, and cylinders four 8 are provided on the right sides of the two mounting seats 7. Down-pressing arms 9 are provided on the telescopic ends of the two cylinders four 8, and guide shafts 10 are provided on the upper ends of the mounting seats 7. The guide shafts 10 are slidably connected with the vertically corresponding down-pressing arms 9, and the cylinders four 8 drive the down-pressing arms 9 to slide downward along the guide shafts 10 to press the engine seats; Locking assembly 4: used for locking the moving seat 2 and the support frame 1, the locking assembly 4 includes a support sleeve 41, a pin 42 and a socket 43, the support sleeves 41 are respectively arranged at the lower ends of the two moving seats 2, the interior of the support sleeves 41 are slidably connected with the pin 42, the front and rear ends of the upper surface of the support frame 1 are provided with evenly distributed sockets 43, the pin 42 is movably connected with the vertically corresponding socket 43, the pin 42 moves upward and separates from the socket 43, and the position of the moving seat 2 can be adjusted after separation, the locking assembly 4 includes an L-shaped hole 44, a handle 45 and a spring sheet 46, L The four L-shaped holes 44 are respectively formed on the outer arc surface of the four support sleeves 41. The upper ends of the pin shafts 42 are provided with handles 45. The handles 45 pass through the L-shaped holes 44 and pass out of the outside of the support sleeves 41. The upper side walls of the lower ends of the four L-shaped holes 44 are provided with spring sheets 46. The spring sheets 46 are arranged in cooperation with the vertically adjacent handles 45. The handles 45 can be moved. The handles 45 squeeze the spring sheets 46 and rotate horizontally along the L-shaped holes 44. Then, the handles 45 move upward along the vertical hole body of the L-shaped holes 44. The lower end of the pin shaft 42 and the bottom of the plug hole 43 are both conical, and the insertion positioning accuracy is good. The clamping unit 3 includes a support seat 31, a support shaft 32, a rotating clamping block 33, a gear 34 and a rack 35. The support seats 31 are symmetrically arranged at the upper end of the movable seat 2. The middle parts of the four support seats 31 are rotatably connected to the support shaft 32. The outer arc surfaces of the four support shafts 32 are provided with rotating clamping blocks 33 and gears 34. The gears 34 are located inside the rotating clamping blocks 33 on the same support shaft 32. The interiors of the four support seats 31 are slidably connected to the racks 35. The four racks 35 The clamping unit 3 further comprises a cylinder 36, which is respectively arranged at one end of the support seat 31 away from the movable seat 2, and the telescopic end of the cylinder 36 is fixedly connected with the rack 35 adjacent in the longitudinal direction, and the cylinder 36 drives the rack 35 to move along the support seat 31 in the direction away from the support frame 1, and the rack 35 drives the support shaft 32 and the rotating clamp block 33 to rotate through the gear 34, and the rotating clamp block 33 rotates 180 degrees to press the side plate onto the movable seat 2; Wherein: the bumper fixing mechanism 5 includes a moving plate 51, a screw rod 52, a cylinder 53, a pressure block 54, a positioning column 55 and a hand wheel 56. The moving plate 51 is slidably connected to the left end of the support frame 1. The right side of the upper surface of the moving plate 51 is provided with symmetrically distributed positioning columns 55. The bumper assembly is placed in the middle of the upper surface of the moving plate 51 and positioned by the positioning columns 55. The middle part of the moving plate 51 is threadedly connected with a screw rod 52. The left end of the outer arc surface of the screw rod 52 is rotatably connected to the support frame 1. The left end of the screw rod 52 is provided with a hand wheel 56. The upper surface of the moving plate 51 is provided with symmetrically distributed cylinders 53. The telescopic ends of the cylinders 53 are all provided with pressure blocks 54. When the cylinders 53 work, the telescopic ends of the cylinders 53 drive the pressure blocks 54 to move rightward. The pressure blocks 54 press and position the bumper assembly, and then the front frame of the agricultural machinery can be welded. Among them: the connecting beam fixing mechanism 6 includes a U-shaped frame 61, a support plate 62, a screw rod 63, a hand wheel 64, a cylinder 65 and a pressure block 66. The U-shaped frame 61 is arranged on the right side of the lower surface of the support frame 1. The lower end of the U-shaped frame 61 is slidably connected with the support plate 62. The U-shaped frame 61 provides an installation position for other parts. The agricultural machinery connecting beam is placed on the left side of the upper surface of the support plate 62 and positioned by the positioning pins above. The middle of the lower end of the U-shaped frame 61 A screw rod 63 is threadedly connected to the right end of the screw rod 63, and the right end of the screw rod 63 is rotatably connected to the right end of the support plate 62. A hand wheel 64 is provided at the right end of the screw rod 63. Symmetrically distributed cylinders 65 are provided on the upper surface of the support plate 62. A pressure block 66 is provided on the telescopic end of the cylinder 65. When the cylinder 65 works, the telescopic end of the cylinder 65 extends out to push the pressure block 66 to move leftward. The pressure block 66 squeezes the agricultural machinery connecting beam to the left and limits the upward movement of the agricultural machinery connecting beam.

[0020] The working principle of the adjustable automatic clamp for welding the front frame of agricultural machinery provided by the present invention is as follows: when in use, the agricultural machinery connecting beam is placed on the left side of the upper surface of the support plate 62, and is positioned by the positioning pin on the upper side, and then the cylinder 3 65 works, and the telescopic end of the cylinder 3 65 extends to push the pressure block 2 66 to move to the left, and the pressure block 2 66 squeezes the agricultural machinery connecting beam to the left and limits the upward movement of the agricultural machinery connecting beam, and then the left and right side plate components of the agricultural machinery frame are placed against the side walls of the moving seat 2, and the engine seat on the side plate is aligned with the U-shaped The positioning seat corresponds, and then the cylinder four 8 and the cylinder one 36 work. The cylinder four 8 drives the lower pressure arm 9 to slide downward along the guide shaft 10 to press the engine seat. The cylinder one 36 drives the rack 35 to move along the support seat 31 in the direction away from the support frame 1. The rack 35 drives the support shaft 32 and the rotating clamp block 33 to rotate through the gear 34. The rotating clamp block 33 rotates 180 degrees to press the side plate onto the moving seat 2. Then the bumper assembly is placed in the middle of the upper surface of the moving plate 51 and positioned by the positioning column 55. Then the cylinder two 53 works. The telescopic end of the cylinder 2 53 drives the pressure block 1 54 to move rightward, and the pressure block 1 54 presses and positions the bumper assembly, and then the front frame of the agricultural machinery can be welded. When welding front frames of agricultural machinery of different specifications, the handle 45 can be moved, and the handle 45 squeezes the spring sheet 46 to rotate horizontally along the L-shaped hole 44, and then the handle 45 moves upward along the vertical hole body of the L-shaped hole 44, and the handle 45 drives the pin shaft 42 to move upward and separate from the socket 43. After separation, the position of the movable seat 2 can be adjusted, which is convenient for adjusting the distance between the two side plates. After the position adjustment is completed, the pin shaft 42 is inserted downward into the socket 43, the handle 45 is rotated to reset, the spring sheet 46 positions the handle 45, and then the hand wheel 56 is rotated, the hand wheel 56 drives the screw rod 52 to rotate, the screw rod 52 drives the movable plate 51 to move horizontally, and then the placement position of the bumper can be changed. Similarly, the hand wheel 64 is rotated, and the hand wheel 64 drives the support plate 62 to move through the screw rod 63, so as to adjust the placement position of the connecting beam, thereby facilitating the welding of front frames of agricultural machinery of different specifications.

[0021] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An adjustable automatic clamp for welding the front frame of an agricultural machinery, characterized in that: It comprises a support frame (1) and a locking assembly (4); Support frame (1): a movable seat (2) is slidably provided in the middle of both front and rear ends, the upper ends of the two movable seats (2) are provided with symmetrically distributed clamping units (3), the right end of the support frame (1) is provided with a movable bumper fixing mechanism (5), the right end of the support frame (1) is provided with a connecting beam fixing mechanism (6), the middle parts of the two movable seats (2) are provided with mounting seats (7), the right sides of the two mounting seats (7) are provided with cylinders four (8), and the telescopic ends of the two cylinders four (8) are provided with downward pressure arms (9); Locking assembly (4): used for locking the moving seat (2) and the supporting frame (1).

2. The adjustable automatic clamp for welding the front frame of agricultural machinery according to claim 1, characterized in that: The clamping unit (3) comprises a support seat (31), a support shaft (32), a rotating clamping block (33), a gear (34) and a rack (35); the support seats (31) are symmetrically arranged at the upper end of the movable seat (2); the middle parts of the four support seats (31) are rotatably connected to the support shaft (32); the outer arc surfaces of the four support shafts (32) are provided with a rotating clamping block (33) and a gear (34); the gear (34) is located inside the rotating clamping block (33) on the same support shaft (32); the insides of the four support seats (31) are slidably connected to the racks (35); the four racks (35) are meshed with the vertically corresponding gears (34).

3. The adjustable automatic clamp for welding the front frame of agricultural machinery according to claim 2, characterized in that: The clamping unit (3) further comprises a cylinder 1 (36), wherein the cylinder 1 (36) is respectively arranged at one end of the support seat (31) away from the movable seat (2), and the telescopic end of the cylinder 1 (36) is fixedly connected to the longitudinally adjacent rack (35).

4. The adjustable automatic clamp for welding the front frame of agricultural machinery according to claim 1, characterized in that: The locking assembly (4) comprises a support sleeve (41), a pin shaft (42) and a socket (43), wherein the support sleeve (41) is respectively arranged at the lower end of the two movable seats (2), the interior of the support sleeve (41) is slidably connected with the pin shaft (42), and the upper surface of the support frame (1) is provided with evenly distributed sockets (43) at both front and rear ends, and the pin shaft (42) is movably plugged into the socket (43) corresponding to the vertical direction.

5. The adjustable automatic clamp for welding the front frame of agricultural machinery according to claim 4, characterized in that: The locking assembly (4) comprises an L-shaped hole (44), a handle (45) and a spring sheet (46); the L-shaped holes (44) are respectively formed on the outer arc surfaces of the four support sleeves (41); the upper ends of the pin shafts (42) are provided with handles (45); the handles (45) pass through the L-shaped holes (44) and extend out of the support sleeves (41); the upper side walls of the lower ends of the four L-shaped holes (44) are provided with spring sheets (46); the spring sheets (46) are arranged in cooperation with the vertically adjacent handles (45).

6. The adjustable automatic clamp for welding the front frame of agricultural machinery according to claim 4, characterized in that: The lower end of the pin shaft (42) and the bottom of the insertion hole (43) are both conical.

7. The adjustable automatic clamp for welding the front frame of agricultural machinery according to claim 1, characterized in that: The bumper fixing mechanism (5) comprises a movable plate (51), a screw rod (52), a cylinder (53), a pressure block (54), a positioning column (55) and a hand wheel (56). The movable plate (51) is slidably connected to the left end of the support frame (1). The right side of the upper surface of the movable plate (51) is provided with symmetrically distributed positioning columns (55). The middle part of the movable plate (51) is threadedly connected with the screw rod (52). The left end of the outer arc surface of the screw rod (52) is rotatably connected to the support frame (1). The left end of the screw rod (52) is provided with a hand wheel (56). The upper surface of the movable plate (51) is provided with symmetrically distributed cylinders (53). The telescopic ends of the cylinders (53) are each provided with a pressure block (54).

8. The adjustable automatic clamp for welding the front frame of agricultural machinery according to claim 1, characterized in that: The connecting beam fixing mechanism (6) comprises a U-shaped frame (61), a support plate (62), a second screw rod (63), a second hand wheel (64), a third cylinder (65) and a second pressure block (66). The U-shaped frame (61) is arranged on the right side of the lower surface of the support frame (1). The lower end of the U-shaped frame (61) is slidably connected to the support plate (62). The middle part of the lower end of the U-shaped frame (61) is threadedly connected to the second screw rod (63). The right end of the second screw rod (63) is rotatably connected to the right end of the support plate (62). The right end of the second screw rod (63) is provided with a second hand wheel (64). The upper surface of the support plate (62) is provided with three symmetrically distributed cylinders (65). The telescopic end of the three cylinders (65) is provided with a second pressure block (66).

9. The adjustable automatic clamp for welding the front frame of agricultural machinery according to claim 1, characterized in that: The upper ends of the mounting seats (7) are each provided with a guide shaft (10), and the guide shaft (10) is slidably connected to a vertically corresponding lower pressure arm (9).

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