Excavator movable arm machining tool

Abstract

The utility model discloses an excavator movable arm machining tool, which belongs to the technical field of excavator movable arm machining and comprises a machining rack, a front end positioning device and a rear end positioning device are arranged at two ends of the machining rack, the distance between the front end positioning device and the rear end positioning device can be adjusted, and the excavator movable arm machining tool can better adapt to excavator movable arms of different sizes and specifications. The front end positioning device and the rear end positioning device each comprise an end positioning device for clamping and positioning the end of the excavator movable arm, and a bottom face positioning seat, an end positioning seat and a top face clamping seat are arranged around the end of the excavator movable arm and can support and position the end of the excavator movable arm in a multi-point mode. The clamping and positioning efficiency and accuracy of the tool are improved, and errors are reduced.

Description

Technical field:

[0001] The utility model belongs to the technical field of excavator boom processing, and more specifically relates to an excavator boom processing tool. Background technology:

[0002] The boom of a hydraulic excavator is a very important structural component. It bears large external loads and has the highest failure rate. Its quality directly determines the quality and working performance of the excavator.

[0003] The boom machining process is relatively complicated. It is the final step in the manufacture of boom structural parts. Errors caused by reasons such as welding dimensional accuracy and welding deformation are concentrated in the machining process. If there is a deviation in the machining size, at the very least, several groups of boom holes will wear out faster, shortening their service life, fatigue damage will occur, and functional problems such as abnormal noise and vibration will occur. At the worst, the whole machine cannot be assembled and will be directly scrapped. Therefore, there are high technical requirements for excavator boom processing to ensure the quality of boom structural parts.

[0004] At present, the sizes of excavator booms are increasing, and the positioning of excavator booms of different sizes is also different. The existing excavator boom processing tooling cannot be used for positioning processing of excavator booms of different sizes and specifications. Different excavator boom processing tooling needs to be used for positioning processing, which takes up more space and increases production costs. Utility model content:

[0005] In order to solve the above problems and overcome the shortcomings of the existing technology, the utility model provides an excavator boom processing tooling;

[0006] The first technical problem to be solved is that excavator booms of different sizes and specifications require different boom processing tooling for positioning and processing, which takes up more space and increases production costs.

[0007] The specific technical solution of the utility model to solve the above technical problems is as follows: the excavator boom processing tooling comprises a processing frame, and a front end head positioning device and a rear end head positioning device are respectively provided at both ends of the processing frame.

[0008] The distance between the front end head positioning device and the rear end head positioning device is adjustable. Both the front end head positioning device and the rear end head positioning device include an end head positioning device for clamping and positioning the end of the excavator boom. The front end head positioning device also includes a top surface pressing device for pressing the top surface of the excavator boom. The rear end head positioning device also includes at least one group of side clamping devices for clamping the side walls of the excavator boom.

[0009] Furthermore, a slide is symmetrically provided on the upper end surface of the mounting seat located on one side of the front end head positioning device, the front end head positioning device is fixed to the processing frame through the mounting seat, the rear end head positioning device is slidably connected to the slide through the mounting seat, and a preset number of sliders that are compatible with the slide are symmetrically provided on the lower end surface of the mounting seat of the rear end head positioning device.

[0010] Furthermore, the end positioning device includes a clamping assembly for clamping the end of the excavator boom and a pin assembly for perforating and positioning the end of the excavator boom, and the pin assembly is arranged inside the clamping assembly.

[0011] Furthermore, the clamping components are symmetrically arranged on both sides of the mounting seat;

[0012] The clamping assembly includes a bottom surface positioning seat for supporting the bottom surface of the excavator boom end, an end positioning seat for positioning the excavator boom end, and a top surface clamping seat for clamping the top surface of the excavator boom end. The bottom surface positioning seat and the end positioning seat are installed on the mounting seat, and the top surface clamping seat is arranged above the end positioning seat by adjusting the screw rod.

[0013] Furthermore, a preset number of bottom support seats for supporting the excavator boom are provided on the mounting seat. The bottom support seats are symmetrically arranged on both sides of the mounting seat and fixed to the mounting seat by bolts.

[0014] Furthermore, the bottom positioning seat and the bottom supporting seat are both configured as supporting oil cylinders, the fixed end of the supporting oil cylinder is mounted on the mounting seat, and the driving end thereof is hinged with a movable pressure head via a rotating shaft.

[0015] Furthermore, the pin assembly includes a pin seat, which is symmetrically and fixedly arranged on both sides of the mounting seat, and a pin with a matching hole is passed through the symmetrically arranged pin seats.

[0016] The beneficial effects of the utility model are:

[0017] One advantage of the present invention is that the distance between the front end head positioning device and the rear end head positioning device is adjustable, which can better adapt to excavator booms of different sizes and specifications, realize the universalization of some excavator booms, make full use of tooling resources, save process equipment investment costs, and improve production efficiency.

[0018] One advantage of the present invention is that the front end head positioning device and the rear end head positioning device at both ends of the processing frame include an end head positioning device, and the bottom surface positioning seat, the end surface positioning seat and the top surface clamping seat are arranged around the end of the excavator boom, and the end of the excavator boom is supported and positioned at multiple points, thereby improving the efficiency and accuracy of the clamping positioning of the tooling, reducing errors, improving the production quality of the boom structural parts, and increasing the practicality of the equipment.

[0019] One advantage of the present invention is that the driving end of the support cylinder is hinged with a movable pressure head through a rotating shaft. The support cylinder can adjust the height of the movable pressure head according to the size specifications of the excavator boom. The movable pressure head can adaptively adjust the support angle according to the excavator boom to better fit different excavator booms. Description of the drawings:

[0020] Attachment Figure 1 It is a schematic diagram of the structure of the utility model;

[0021] Attachment Figure 2 This is a schematic diagram of the structure of the utility model from a top view;

[0022] Attachment Figure 3 This is a schematic structural diagram of the front-end positioning device of the utility model;

[0023] Attachment Figure 4 This is a schematic structural diagram of the rear end head positioning device of the utility model;

[0024] Attachment Figure 5 This is the first assembly diagram of the utility model structure;

[0025] Attachment Figure 6 This is the second assembly diagram of the utility model structure; in the accompanying drawings:

[0026] 1. Processing frame; 11. Mounting seat; 111. Slider; 2. Front end head positioning device; 21. Top surface clamping device; 211. Clamping seat; 212. Pressure plate; 2121. U-shaped groove; 213. Clamping screw; 3. Rear end head positioning device; 31. Side clamping device; 311. Side clamping seat; 312. Clamping screw; 4. End head positioning device; 41. Clamping assembly; 411. Bottom surface positioning seat; 412. End positioning seat; 413. Top surface clamping seat; 4131. Adjusting screw; 4132. Guide column; 42. Pin assembly; 421. Pin seat; 422. Alignment pin; 5. Bottom support seat; 6. Slide; 7. Movable pressure head. Specific implementation method:

[0027] In the description of this utility model, it should be understood that the terms "center," "upper," "lower," "left," "right," "rear," "lower left," "upper right," and "outer" and the like, indicating positions or locations, are based on the positions or locations shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] Specific implementation of the utility model: the excavator boom processing tooling comprises a processing frame 1, and the two ends of the processing frame 1 are respectively provided with a front end head positioning device 2 and a rear end head positioning device 3,

[0029] As the invention point of this utility model,

[0030] The distance between the front end head positioning device 2 and the rear end head positioning device 3 is adjustable. The front end head positioning device 2 and the rear end head positioning device 3 both include an end head positioning device 4 for clamping and positioning the end of the excavator boom. The front end head positioning device 2 also includes a top surface pressing device 21 for pressing the top surface of the excavator boom. The rear end head positioning device 3 also includes at least one group of side clamping devices 31 for clamping the side walls of the excavator boom.

[0031] The cam 11 is provided with a plurality of sliding blocks 111 on the bottom surface of the cam 11 so as to prevent the cam 11 from sliding out of the cam 11 and the cam 11 is provided with a plurality of sliding blocks 111 on the bottom surface of the cam 11. The cam 11 is provided with a plurality of sliding blocks 111 on the bottom surface of the cam 11 and the cam 11 is provided with a plurality of sliding blocks 111 on the bottom surface of the cam 11. The cam 11 is provided with a plurality of sliding blocks 111 on the bottom surface of the cam 11 and the cam 11 is provided with a plurality of sliding blocks 111 on the bottom surface of the cam 11.

[0032] The specifications and shapes of the ends of excavator booms of different sizes are also different. In order to meet the positioning requirements of the ends of different excavator booms, it is preferred that

[0033] The end positioning device 4 includes a clamping assembly 41 for clamping around the end of the excavator boom and a pin assembly 42 for perforating and positioning the end of the excavator boom. The pin assembly 42 is arranged inside the clamping assembly 41.

[0034] Preferably, the clamping assembly 41 includes a bottom surface positioning seat 411 for supporting the bottom surface of the excavator boom end, an end positioning seat 412 for positioning the excavator boom end, and a top surface clamping seat 413 for clamping the top surface of the excavator boom end. The bottom surface positioning seat 411 and the end positioning seat 412 are both mounted on the mounting seat 11 by bolts.

[0035] The mounting seat 11 is provided with a preset number of bottom support seats 5 for supporting the excavator boom, and the bottom support seats 5 are symmetrically arranged on both sides of the mounting seat 11 and fixed to the mounting seat 11 by bolts; the bottom positioning seat 411 and the bottom support seat 5 are both configured as support cylinders, and the fixed end of the support cylinder is installed on the mounting seat 11, and the driving end thereof is hinged with a movable pressure head 7 through a rotating shaft.

[0036] With this structure, the supporting oil cylinder can adjust the height of the movable pressure head according to the size specifications of the excavator boom, and the movable pressure head can adaptively adjust the support angle according to the excavator boom to better fit the excavator boom and achieve the best support effect; compared with processing an excavator boom with a shorter length, when processing an excavator boom with a longer length, the bottom support seat 5 cooperates with the bottom positioning seat 411 to improve the support stability of the tooling processing.

[0037] Preferably, the end positioning seat 412 is provided with a transversely placed ball screw, and the ball screw is slidably connected to the bottom positioning seat 411 through an internal threaded sleeve, and the internal threaded sleeve passes through the end positioning seat 412 and is fixed to the end positioning seat 412;

[0038] The top surface clamping seat 413 is arranged above the end positioning seat 412 through an adjusting screw rod 4131 , and the bottom surface positioning seat 411 , the end positioning seat 412 and the top surface clamping seat 413 are respectively symmetrically arranged on the mounting seat 11 along the central axis of the processing frame 1 .

[0039] The lower end of the adjusting screw rod 4131 is fixed on the end positioning seat 412, and the upper end of the adjusting screw rod 4131 passes through the top surface clamping seat 413 and extends to the outside. An adjusting nut is sleeved on the adjusting screw rod 4131 above the top surface clamping seat 413; the end positioning seat 412 is also provided with a guide column 4132 to prevent the top surface clamping seat 413 from deviating. The guide column 4132 is fixed on the end positioning seat 412, and its upper end passes through the top surface clamping seat 413 and is set with a gap from the top surface clamping seat 413. By rotating the adjusting nut, the top surface clamping seat 413 moves under the guidance of the guide column 4132 to clamp the excavator boom.

[0040] The pin assembly 42 includes a pin seat 421 , which is symmetrically and fixedly arranged on both sides of the mounting base 11 , and a pin 422 with a matching hole is passed through between the symmetrically arranged pin seats 421 .

[0041] As a preferred embodiment, the side clamping seats 311 are symmetrically arranged on both sides of the mounting seat 11. The side clamping device 31 includes a side clamping seat 311. The side clamping seat 311 is provided with a clamping screw 312 for clamping the excavator boom.

[0042] There are two groups of side clamping devices 31, the difference is that the clamping screw 312 is located at different heights on the side clamping seat 311; two side clamping devices 31 are used to clamp the excavator boom, and by rotating the clamping screw 312, the two sides of the excavator boom are clamped at different positions, which prevents the excavator boom from vibrating left and right during processing, thereby affecting the processing quality, and can also improve the clamping effect.

[0043] As a preferred embodiment, the top surface clamping device 21 includes a clamping seat 211, which is symmetrically arranged on both sides of the mounting seat 11. The symmetrically arranged clamping seats 211 are connected by a clamping plate 212. The two ends of the clamping plate 212 are detachably connected to the clamping seat 211 by bolts. A U-shaped groove 2121 is opened at either end of the clamping plate 212. The clamping plate 212 is provided with a clamping screw 213 for clamping the excavator boom. There are two clamping screws 213, which are spaced apart at the center axis of the clamping plate 212 and can be used to clamp the excavator boom to prevent the excavator boom from jumping upward during the clamping or processing process. After the processing is completed, the bolts at both ends of the clamping plate 212 are loosened, and one end of the bolt can be rotated out of the U-shaped groove 2121, realizing rapid lifting and offline without unscrewing the nut.

[0044] It should be noted that the utility model is a tooling for processing an excavator boom.

[0045] According to the size specifications of the excavator boom, the slider 111 is driven to slide along the slideway 6 by manually using a driving tool, driving the mounting seat 11 of the rear end head positioning device 3 to slide along the slider 111, thereby adjusting the position between the front end head positioning device 2 and the rear end head positioning device 3;

[0046] The excavator boom is manually hoisted onto the tooling using a hoisting tool. At this time, the lower end surface of the excavator boom is supported by the bottom support seat 5 and the bottom positioning seat 411. The bottom support seat 5 and the bottom positioning seat 411 adjust the height of the movable pressure head according to the size specifications of the excavator boom. At this time, the movable pressure head 7 can adaptively adjust the support angle according to the excavator boom to better fit the excavator boom and achieve the best support effect; the pin assembly 42 performs perforation positioning on the processed holes at both ends of the excavator boom; the top surface clamping device 21 The end of the excavator boom is clamped and positioned, and the pressure plate 212 is rotated so that the pressure plate 212 is located above the excavator boom. At this time, the U-shaped groove 2121 at one end of the pressure plate 212 contacts the bolt. The bolt is tightened to prevent the pressure plate 212 from loosening. Then, the clamping screw 213 is tightened so that the clamping screw 213 contacts and presses the upper end surface of the excavator boom. The side clamping device 31 clamps the side wall of the excavator boom. The clamping screw 312 is rotated to clamp the two sides of the excavator boom. At this time, the preliminary clamping and positioning of the excavator boom is completed.

[0047] The end positioning devices 4 of the front end positioning device 2 and the rear end positioning device 3 respectively support and clamp the two ends of the excavator boom. The ball screw on the end positioning seat 412 is manually adjusted so that the end positioning seat 412 positions and clamps the end of the excavator boom. The adjusting nut is rotated to drive the top surface clamping seat 413 to move downward through the guide column 4132 to clamp the upper part of the excavator boom.

[0048] The bottom positioning seat 411, the end positioning seat 412 and the top clamping seat 413 are arranged around the end of the excavator boom to perform multi-point positioning and support on the end of the excavator boom, thereby improving the efficiency and accuracy of the clamping positioning of the tooling, reducing errors, improving the production quality of the boom structural parts, and increasing the practicality of the equipment.

[0049] 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 to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. An excavator boom processing tool, comprising a processing frame (1), wherein a front end head positioning device (2) and a rear end head positioning device (3) are respectively provided at both ends of the processing frame (1), characterized in that: The distance between the front end head positioning device (2) and the rear end head positioning device (3) is adjustable. The front end head positioning device (2) and the rear end head positioning device (3) both include an end head positioning device (4) for clamping and positioning the end of the excavator boom. The front end head positioning device (2) also includes a top surface pressing device (21) for pressing the top surface of the excavator boom. The rear end head positioning device (3) also includes at least one set of side clamping devices (31) for clamping the side wall of the excavator boom.

2. The excavator boom processing tool according to claim 1, characterized in that A slideway (6) is symmetrically provided on the upper end surface of the processing frame (1) located on one side of the front end head positioning device (2); the front end head positioning device (2) is fixedly provided with the processing frame (1) via a mounting seat (11); the rear end head positioning device (3) is slidably connected to the slideway (6) via the mounting seat (11); and a preset number of sliders (111) adapted to the slideway (6) are symmetrically provided on the lower end surface of the mounting seat (11) of the rear end head positioning device (3).

3. The excavator boom processing tool according to claim 1, characterized in that The end positioning device (4) comprises a clamping assembly (41) for clamping the end of the excavator boom and a pin assembly (42) for perforating and positioning the end of the excavator boom, wherein the pin assembly (42) is arranged inside the clamping assembly (41).

4. The excavator boom processing tool according to claim 3, characterized in that The clamping components (41) are symmetrically arranged on both sides of the mounting seat (11); The clamping assembly (41) comprises a bottom surface positioning seat (411) for supporting the bottom surface of the end of the excavator boom, an end surface positioning seat (412) for positioning the end of the excavator boom, and a top surface clamping seat (413) for clamping the top surface of the end of the excavator boom. The bottom surface positioning seat (411) and the end surface positioning seat (412) are mounted on the mounting seat (11), and the top surface clamping seat (413) is arranged above the end surface positioning seat (412) through an adjusting screw rod (4131).

5. The excavator boom processing tool according to claim 4, characterized in that The mounting seat (11) is provided with a preset number of bottom surface support seats (5) for supporting the excavator boom. The bottom surface support seats (5) are symmetrically arranged on both sides of the mounting seat (11) and fixed to the mounting seat (11) by bolts.

6. The excavator boom processing tool according to claim 5, characterized in that The bottom surface positioning seat (411) and the bottom surface supporting seat (5) are both configured as supporting oil cylinders. The fixed end of the supporting oil cylinder is mounted on the mounting seat (11), and the driving end thereof is hingedly connected to a movable pressure head (7) via a rotating shaft.

7. The excavator boom processing tool according to claim 3, characterized in that The pin assembly (42) includes a pin seat (421), which is symmetrically and fixedly arranged on both sides of the mounting seat (11), and a pin (422) with a matching hole is inserted between the symmetrically arranged pin seats (421).

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