Multifunctional movable arm front fork welding positioner clamp

Abstract

A multifunctional movable arm front fork welding positioner clamp relates to the field of clamps and comprises a cross plate, a rotating component is arranged at the top of the cross plate, a movable arm front fork is sleeved on the rotating component, a symmetrical clamping mechanism is arranged in the middle of the cross plate, and a rotating clamping mechanism is arranged at the bottom of the cross plate. According to the movable arm front fork clamping device, comprehensive and stable clamping of the movable arm front fork is achieved through the combination of the cross plate, the rotating component, the symmetrical clamping mechanism and the rotating clamping mechanism. By means of the design, the machining precision and efficiency are improved, the universality and flexibility of the clamp are enhanced, and the clamp can adapt to movable arm front forks of different sizes and shapes.

Description

Technical Field

[0001] The utility model relates to the technical field of fixtures, and more specifically, to a multifunctional welding positioner fixture for the front fork of a boom. Background Art

[0002] As a heavy construction machinery, in the boom structure of an excavator, the front fork of the boom is a crucial component. It is located at the front end of the boom and mainly undertakes the functions of connection and support. It is connected to the dipper arm or other working devices, playing a role in transmitting force and stabilizing operation. To ensure the strength and durability of the front fork of the boom, high-strength steel is usually selected and manufactured through welding technology.

[0003] The structure of the front fork of the boom includes multiple components such as vertical plates and connecting plates. The precise combination of these components has an important impact on the overall performance and safety of the excavator. However, in the traditional welding process, in order to ensure welding quality and efficiency, positioners and fixtures are often required.

[0004] Although positioners and fixtures play a key role in the welding process, the existing fixture designs often have certain limitations. In particular, many fixtures are designed relatively fixed and cannot adapt to front forks of different sizes. This lack of adaptability limits the versatility of the fixtures, resulting in the need to frequently replace or adjust the fixtures during the production process, thus reducing production efficiency and increasing costs. Summary of the Utility Model

[0005] The purpose of the utility model is to solve the problems raised in the above background art, and then a multifunctional welding positioner fixture for the front fork of a boom is proposed.

[0006] The technical solution adopted by the utility model to solve its technical problems is as follows:

[0007] A multifunctional welding positioner fixture for the front fork of a boom, including a cross plate. A rotating member is provided at the top of the cross plate, and a front fork of a boom is sleeved on the rotating member. A symmetric clamping mechanism is provided in the middle of the cross plate, and a rotating clamping mechanism is provided at the bottom of the cross plate.

[0008] Further, a vertical support pipe is provided on the back of the cross plate, and a connecting disk is provided on the vertical support pipe.

[0009] Further, the cross plate includes a horizontal plate and a vertical plate. Two vertical plates are welded in the middle of the horizontal plate, and the two vertical plates are respectively located on the upper and lower sides of the horizontal plate.

[0010] Further, the rotating member includes a flange plate which is fixedly connected to the cross plate by bolts. An extension pipe is connected to the flange plate. The extension pipe is connected to a limiting plate. A fixed shaft is provided on the limiting plate. External threads are provided at the end of the fixed shaft, and a tightening plate is installed at the external threads.

[0011] Further, a threaded hole which matches with the end of the fixed shaft is formed in the middle of the tightening plate.

[0012] Further, when a boom front fork is sleeved on the fixed shaft, the tightening plate can rotate along the rotating shaft and abut against the boom front fork.

[0013] Further, the symmetric clamping mechanism includes a first rectangular steel pipe and a second rectangular steel pipe which are arranged in parallel. The first rectangular steel pipe and the second rectangular steel pipe are welded on the cross plate. A top plate is provided at the tops of the first rectangular steel pipe and the second rectangular steel pipe. A slideway is formed between the first rectangular steel pipe and the second rectangular steel pipe. A first bearing seat and a second bearing seat are provided on both sides of the slideway. A first lead screw is rotatably connected in the first bearing seat and the second bearing seat. A runner is installed at the end of the first lead screw. Two sets of sliding components are provided on the top plate. The sliding component includes a first slide rail. A first slider is slidably matched with the first slide rail. A sliding frame is installed on the first slider. A clamping plate is provided on the sliding frame. The first lead screw is matched with the first slider.

[0014] Further, the rotation of the runner can make the two clamping plates approach or separate from each other.

[0015] Further, the rotating clamping mechanism includes two second slide rails which are arranged in parallel. A second slider is slidably matched with the second slide rails. A moving frame is fixedly connected to the second slider. An adjusting bolt is provided on the moving frame. A rotating limiting plate is threadedly connected to the end of the adjusting bolt. An extension plate is provided at the upper end of the moving frame. A pin hole is provided on the extension plate. A plurality of positioning jacks which match with the pin hole are provided on the top plate. A pin shaft is installed in the pin hole. The pin shaft can pass through the pin hole and be inserted into the positioning jack.

[0016] Further, a long hole is provided on the rotating limiting plate. A fixing bolt is installed in the long hole. The fixing bolt can pass through the long hole and then be threadedly connected to the threaded hole on the top plate.

[0017] Compared with the prior art, the beneficial effects of the present utility model are as follows: The present utility model realizes the comprehensive and stable clamping of the boom front fork through the combination of the cross plate, the rotating member, the symmetric clamping mechanism and the rotating clamping mechanism. This design not only improves the machining precision and efficiency, but also enhances the versatility and flexibility of the fixture, enabling it to adapt to boom front forks of different sizes and shapes. Description of the Drawings

[0018] Figure 1 is a schematic diagram of the usage state of the present utility model;

[0019] Figure 2 is a three-dimensional structure schematic diagram of the present utility model;

[0020] Figure 3 is Figure 2 a partial enlarged view of part A in

[0021] Among them: 100 boom front fork, 1 horizontal plate, 2 vertical plate, 3 vertical support pipe, 4 connecting plate, 5 rotating member, 51 flange plate, 52 extension pipe, 53 limiting plate, 54 tightening plate, 6 symmetric clamping mechanism, 61 first rectangular steel pipe, 62 second rectangular steel pipe, 63 top plate, 64 first slide rail, 65 first slider, 66 carriage, 67 clamping plate, 68 first bearing seat, 69 first lead screw, 610 second bearing seat, 611 runner, 7 rotating clamping mechanism, 71 second slide rail, 72 second slider, 73 moving frame, 74 adjusting bolt, 75 rotating limiting plate, 76 long slot, 77 fixing bolt, 78 pin hole, 79 positioning jack. Specific embodiments

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model. The present utility model will be further described in conjunction with the accompanying drawings and embodiments:

[0023] As Figures 1 - 3 shown, a multifunctional boom front fork welding positioner fixture includes a cross plate. A rotating member 5 is provided at the top of the cross plate, and a boom front fork 100 is sleeved on the rotating member. A symmetric clamping mechanism 6 is provided in the middle of the cross plate, and a rotating clamping mechanism 7 is provided at the bottom of the cross plate. This fixture is reasonably designed and compact in structure, and can realize multi-point stable clamping of the boom front fork, improving the processing accuracy and efficiency. Through the multi-point clamping design, this fixture can ensure the stability and accuracy of the boom front fork during the processing, thereby improving the product quality and work efficiency.

[0024] In at least one embodiment, a vertical support pipe 3 is provided on the back of the cross plate, and a connecting plate 4 is provided on the vertical support pipe. The connecting plate can be connected to other components of the positioner. Through the design of the connecting plate, the fixture can be conveniently connected to other positioner components, improving the versatility and flexibility of the fixture.

[0025] Further, the cross-shaped plate includes a horizontal plate 1 and a vertical plate 2. Specifically, two vertical plates are welded to the middle of the horizontal plate, and the two vertical plates are respectively located on the upper and lower sides of the horizontal plate.

[0026] In at least one embodiment, the rotating member includes a flange 51, which is fixedly connected to the cross-shaped plate by bolts. An extension pipe 52 is connected to the flange, and a limiting plate 53 is connected to the extension pipe. A fixed shaft is provided on the limiting plate, and an external thread is provided at the end of the fixed shaft, and a tightening plate 54 is installed at the external thread. This design enables the boom front fork to be easily sleeved and fixed on the rotating member.

[0027] In a refined solution, a threaded hole matching the end of the fixed shaft is formed in the middle of the tightening plate. The design of the threaded hole enables the tightening plate to be easily adjusted to a suitable position and fasten the boom front fork, improving the clamping stability and operation convenience.

[0028] Further, when a boom front fork is sleeved on the fixed shaft, the tightening plate can rotate along the rotating shaft and abut against the boom front fork.

[0029] In at least one embodiment, the symmetric clamping mechanism includes a first rectangular steel pipe 61 and a second rectangular steel pipe 62 arranged in parallel. The first rectangular steel pipe 61 and the second rectangular steel pipe 62 are welded to the cross-shaped plate. A top plate 63 is provided at the top of the first rectangular steel pipe and the second rectangular steel pipe. A slideway is formed between the first rectangular steel pipe and the second rectangular steel pipe. A first bearing seat 68 and a second bearing seat 610 are provided on both sides of the slideway. A first lead screw 69 is rotatably connected in the first bearing seat and the second bearing seat. A runner 611 is installed at the end of the first lead screw. Two sets of sliding components are provided on the top plate. The sliding component includes a first slide rail 64, a first slider 65 is slidably fitted on the first slide rail, a carriage 66 is installed on the first slider, and a clamping plate 67 is provided on the carriage. The first lead screw is matched with the first slider. Through the design of the symmetric clamping mechanism, the fixture can adapt to boom front forks of different sizes and shapes, improving the versatility and applicability of the fixture.

[0030] Further, the rotation of the runner can make the two clamping plates approach or separate from each other. By rotating the runner, the distance between the clamping plates can be easily adjusted, so as to adapt to boom front forks of different sizes, improving the operation convenience and efficiency.

[0031] Further, the first lead screw includes a clockwise threaded rod and a counterclockwise threaded rod, which are connected together. First sliders are fitted on both the clockwise threaded rod and the counterclockwise threaded rod. When the runner rotates, the two first sliders can move closer to or away from each other. Through the design of the clockwise threaded rod and the counterclockwise threaded rod, the synchronous movement of the two clamping plates is realized, further improving the clamping stability and precision.

[0032] In at least one embodiment, the rotating clamping mechanism includes two second slide rails 71 arranged in parallel. Second sliders 72 are slidably fitted on the second slide rails. A moving frame 73 is fixedly connected to the second sliders. An adjusting bolt 74 is provided on the moving frame. A rotating limit plate 75 is threadedly connected to the end of the adjusting bolt. An extension plate is provided at the upper end of the moving frame. A pin hole 78 is provided on the extension plate. Correspondingly, a plurality of positioning jacks 79 matching the pin hole are provided on the top plate. A pin shaft is installed in the pin hole, and the pin shaft can be further inserted into the positioning jack to limit the movement of the moving frame along the second slide rail. Through the design of the rotating clamping mechanism, the fixture can adapt to different shapes and sizes of the lower part of the boom front fork, improving the clamping stability and flexibility.

[0033] Further, a long slot 76 is provided on the rotating limit plate, and a fixing bolt 77 can be installed in the long slot. The fixing bolt can pass through the long slot and be threadedly connected to the threaded hole in the top plate.

[0034] Further, when the boom front fork is rotatably connected to the cross-shaped plate, people can adjust the position of the moving frame and adjust the rotating limit plate so that the rotating limit plate is clamped outside the iron plate at the lower end of the boom front fork. At the same time, rotate the fixing bolt so that the rotating limit plate is closely attached to the surface of the iron plate, thereby realizing the clamping and fixing of the lower end of the boom front fork.

[0035] Working method: Install the fixture on other components of the positioner through the vertical support pipe and the connecting plate to ensure stability and flexible operation. Sleeve the boom front fork on the rotating component. Specifically, sleeve the boom front fork onto the fixed shaft and ensure its stability. Tighten the tightening plate so that it rotates along the fixed shaft and closely abuts against the boom front fork to realize the fixation of the upper part of the boom front fork.

[0036] By rotating the runner, drive the first lead screw to rotate, so that the two clamping plates move closer to or away from each other along the first slide rail. Adjust the position of the clamping plates until they tightly clamp the corresponding parts of the boom front fork to ensure its stability and position accuracy.

[0037] Adjust the position of the moving frame along the second slide rail according to the size and shape of the boom front fork, and use the pin shaft and positioning jack to fix the position of the moving frame. Adjust the rotation limit plate so that it is clamped outside the iron plate at the lower end of the boom front fork. Rotate the fixing bolt so that the rotation limit plate fits tightly on the surface of the iron plate of the boom front fork to realize the clamping and fixing of the lower end part.

[0038] After ensuring that the boom front fork is stably clamped, the positioner can be operated for welding or other processing work. After the work is completed, loosen each clamping mechanism and gently remove the boom front fork. Carry out necessary cleaning and maintenance on the fixture to ensure its long-term use performance and service life.

[0039] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of protection required by the present invention. The scope of protection required by the present invention is defined by the appended claims and their equivalents.

Claims

1. A multifunctional boom front fork welding positioner fixture, characterized in that: It comprises a cross plate, a rotating member is arranged on the top of the cross plate, a movable arm front fork is sleeved on the rotating member, a symmetrical clamping mechanism is arranged in the middle of the cross plate, and a rotating clamping mechanism is arranged at the bottom of the cross plate.

2. The multifunctional boom front fork welding positioner fixture according to claim 1 is characterized in that: A vertical support tube is provided on the back of the cross plate, and a connecting plate is provided on the vertical support tube.

3. The multifunctional boom front fork welding positioner fixture according to claim 1 or 2, characterized in that: The cross plate includes a horizontal plate and a vertical plate. Two vertical plates are welded in the middle of the horizontal plate. The two vertical plates are respectively located at the upper and lower sides of the horizontal plate.

4. The multifunctional boom front fork welding positioner fixture according to claim 2 is characterized in that: The rotating member includes a flange, which is fixedly connected to a cross plate by bolts, an extension tube is connected to the flange, and the extension tube is connected to a limit plate. A fixed shaft is provided on the limit plate, and an external thread is provided on the end of the fixed shaft, and a tightening plate is installed at the external thread.

5. The multifunctional boom front fork welding positioner fixture according to claim 4 is characterized in that: A threaded hole matching with the end of the fixed shaft is formed in the middle of the tightening plate.

6. The multifunctional boom front fork welding positioner fixture according to claim 4 is characterized in that: When the boom front fork is sleeved on the fixed shaft, the tightening plate can rotate along the rotating shaft and abut against the boom front fork.

7. The multifunctional boom front fork welding positioner fixture according to claim 4, characterized in that: The symmetrical clamping mechanism includes a first rectangular steel tube and a second rectangular steel tube arranged in parallel, the first rectangular steel tube and the second rectangular steel tube are welded on a cross plate, a top plate is provided on the top of the first rectangular steel tube and the second rectangular steel tube, a slideway is formed between the first rectangular steel tube and the second rectangular steel tube, a first bearing seat and a second bearing seat are provided on both sides of the slideway, a first lead screw is rotatably connected in the first bearing seat and the second bearing seat, a rotating wheel is installed on the end of the first lead screw, two sets of sliding components are provided on the top plate, and the sliding component includes a first slide rail, a first slider is slidably matched on the first slide rail, a slide is installed on the first slide, a clamping plate is provided on the slide, and the first lead screw cooperates with the first slider.

8. The multifunctional boom front fork welding positioner fixture according to claim 7, characterized in that: The rotation of the rotating wheel can make the two clamping plates approach or move away from each other.

9. The multifunctional boom front fork welding positioner fixture according to claim 7, characterized in that: The rotating clamping mechanism includes two second slide rails arranged in parallel, the second slide rails are slidably matched with a second slider, the second slider is fixedly connected to a moving frame, an adjusting bolt is provided on the moving frame, the end of the adjusting bolt is threadedly connected with a rotation limit plate, an extension plate is provided on the upper end of the moving frame, a pin hole is provided on the extension plate, a plurality of positioning sockets matching the pin holes are provided on the top plate, a pin shaft is installed in the pin hole, and the pin shaft can pass through the pin hole and be inserted into the positioning socket.

10. The multifunctional boom front fork welding positioner fixture according to claim 9, characterized in that: The rotation limiting plate is provided with an elongated hole, in which a fixing bolt is installed. The fixing bolt can pass through the elongated hole and then be threadedly connected to the threaded hole of the top plate.

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