Movable arm machining tool

Abstract

The utility model provides a movable arm machining tool which comprises a base and two clamping mechanisms, and the two clamping mechanisms are oppositely arranged on the two sides of the base in the length direction. The clamping mechanism comprises a first guide rail, a first telescopic piece and a clamping block; the first guide rail is installed on the base and arranged in the length direction of the movable arm, the clamping block is installed on the first guide rail in a sliding mode, and the first telescopic piece can push the clamping block to slide on the first guide rail. According to the utility model, the first telescopic piece drives the clamping blocks to slide towards the movable arm on the first guide rail, and the two clamping blocks apply opposite clamping forces to the two ends of the movable arm in the length direction, so that the movable arm can be positioned and clamped in the length direction, the shaking amplitude of the movable arm in the length direction is reduced, and the machining precision of the movable arm is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of movable arm processing, in particular to a movable arm processing tool. Background Art

[0002] The excavator boom is the key action execution component of the excavator, and is mainly composed of a boom body, a plurality of supports arranged on the boom body, and an ear plate arranged on the boom body, wherein the boom body mainly includes an upper cover plate, a lower cover plate, a front web plate, a middle web plate, and a rear web plate, and the front web plate, the middle web plate, and the rear web plate are sequentially connected between the upper cover plate and the lower cover plate along the direction from the front end to the rear end of the boom body, and the plurality of supports mainly include a front support arranged at the front end of the boom body, a middle support arranged on the middle web plate, and a rear support arranged at the rear end of the boom body.

[0003] The boom machining process is relatively complicated. It is the last 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. There is a high correlation between each group of holes. At the same time, the machined holes are also one of the weak and vulnerable areas of the boom. If the machining dimensions deviate, at the least, several groups of boom holes will wear faster, shorten their service life, and suffer fatigue damage, produce abnormal noise and vibration, and other functional problems. At worst, the whole machine cannot be assembled and is directly scrapped. Therefore, there are high technical requirements for boom hole machining to ensure the quality of boom structural parts. For this reason, the boom machining tooling is particularly important.

[0004] The processing tooling of the boom generally includes: front support tooling, middle support tooling and rear support tooling; for example, the patent with publication number CN111791077A discloses a processing tooling of the boom arm of an engineering machinery, in which a front support positioning block, an end face positioning block, a front centering positioning clamping device, a front positioning mechanism and a front clamping mechanism are arranged on the front slide seat at the front of the base; a rear support positioning block, a rear centering positioning clamping device, a rear positioning mechanism and a rear clamping mechanism are arranged on the rear slide seat at the rear of the base; an outer laser distance measuring mechanism is arranged on the positioning seat of the middle and rear positioning mechanism, and an inner laser distance measuring mechanism is arranged on the clamping seat of the middle and rear clamping mechanism. The present invention performs centering positioning through the front and rear support end faces of the boom and the boom, performs laser detection on the upper ear plate and automatically adjusts the clamping, and performs adjustable positioning at another suitable position and clamps on the opposite side.

[0005] However, in the processing tooling of the movable arm, the movable arm cannot be well positioned and clamped in the length direction, which may cause the movable arm to shake in the length direction and affect the processing accuracy. Utility Model Content

[0006] In view of the above-mentioned problems existing in the prior art, a boom processing tool is provided to solve the problem in the utility model that the existing boom processing tool cannot well position and clamp the boom in the length direction, which may cause the boom to shake in the length direction and affect the processing accuracy.

[0007] In order to solve the above technical problems, the utility model adopts the following technical solution: a movable arm processing tool, comprising:

[0008] base; and

[0009] A clamping mechanism, wherein two clamping mechanisms are arranged opposite to each other on both sides of the length direction of the base; the clamping mechanism comprises: a first guide rail, a first telescopic member and a clamping block; the first guide rail is installed on the base, and the first guide rail is arranged along the length direction of the movable arm, the clamping block is slidably installed on the first guide rail, and the first telescopic member can push the clamping block to slide on the first guide rail.

[0010] In the utility model, the first telescopic member drives the clamping block to slide on the first guide rail toward the movable arm, and the two clamping blocks apply an opposite clamping force to the two ends of the movable arm in the length direction, so that the movable arm can be positioned and clamped in the length direction, reducing the shaking amplitude of the movable arm in the length direction and improving the processing accuracy of the movable arm.

[0011] Preferably, each of the clamping mechanisms is mounted on the base through an adjustment mechanism; the adjustment mechanism includes: a slide rail and a slide seat; the slide rail is arranged along the length direction of the base and is fixedly mounted on the base; the slide seat is slidably mounted on the slide rail, and the first guide rail is fixedly mounted on the slide seat. The slide seat drives the clamping mechanism to slide on the slide rail, so that the position in the length direction of the boom can be adjusted over a wide range, so as to adapt to booms of different lengths. Specifically, after the position adjustment of the two slide seats is completed, the position of the slide seats can be fixed by plugging the pins into different slots.

[0012] Preferably, the adjustment mechanism further comprises a screw rod, which is rotatably mounted on the base, passes through the slide seat and is threadedly connected to the slide seat. The slide seat is driven to move on the slide rail by rotating the screw rod, so that the position of the slide seat can be adjusted more finely.

[0013] Preferably, it also includes an opposing clamping mechanism; the opposing clamping mechanism includes two clamping assemblies symmetrically arranged along the width direction of the boom, and the clamping assembly includes: a mounting seat, a second telescopic member and a clamping block; the second telescopic member is fixedly mounted on the base through the mounting seat, and the clamping block is detachably mounted on the second telescopic member, and the second telescopic member can drive the clamping block to move along the width direction of the boom. The second telescopic member drives the clamping block to move toward the outer side wall in the width direction of the boom, and applies a pressure to the outer side wall of the boom. Through two symmetrically arranged clamping blocks, the width direction of the boom can be clamped to improve the stability of the boom; and by disassembling and replacing clamping blocks of different models and sizes, it can adapt to different models of booms.

[0014] Preferably, it also includes a centering positioning mechanism, which includes two positioning components symmetrically arranged along the width direction of the movable arm, and the positioning component includes a second guide rail, a positioning block and a third telescopic member; the second guide rail is installed on the base, the positioning block is slidably installed on the second guide rail, and the third telescopic member can drive the positioning block to slide. The two third telescopic members are extended and retracted at the same time, driving the positioning blocks to slide the same distance on the second guide rail, thereby pushing the movable arm to move toward the center and completing the positioning of the movable arm.

[0015] Compared with the prior art, the utility model has at least the following advantages:

[0016] 1. The first telescopic member drives the clamping block to slide on the first guide rail toward the movable arm. The two clamping blocks apply an opposite clamping force to the two ends of the movable arm in the length direction, so as to position and clamp the movable arm in the length direction, reduce the swing amplitude of the movable arm in the length direction, and improve the processing accuracy of the movable arm.

[0017] 2. The second telescopic member drives the clamping block to move toward the outer side wall in the width direction of the boom, exerting a pressure on the outer side wall of the boom. Through two symmetrically arranged clamping blocks, the width direction of the boom can be clamped to improve the stability of the boom.

[0018] 3. The two third telescopic members extend and retract simultaneously, driving the positioning blocks to slide the same distance on the second guide rail, thereby pushing the movable arm to move toward the center and completing the positioning of the movable arm. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the specific implementation of the utility model, the following will briefly introduce the drawings required for use in the specific implementation. In all the drawings, each element or part is not necessarily drawn according to the actual scale.

[0020] Figure 1 A three-dimensional diagram of a movable arm processing tooling provided in an embodiment of the utility model.

[0021] Figure 2 This is a front view of a movable arm processing tooling provided in an embodiment of the utility model.

[0022] Figure 3 A top view of a movable arm processing tooling provided in an embodiment of the utility model.

[0023] Figure 4 This is a schematic diagram of the structure of the clamping mechanism provided in the embodiment of the utility model.

[0024] Figure 5 This is a schematic structural diagram of a centering and positioning mechanism provided in an embodiment of the present utility model.

[0025] Figure markings: 1-base, 2-clamping mechanism, 21-first guide rail, 22-first telescopic member, 23-clamping block, 3-adjusting mechanism, 31-slide rail, 32-slide seat, 33-screw rod, 4-opposite clamping mechanism, 41-mounting seat, 42-second telescopic member, 43-pressing block, 5-centering positioning mechanism, 51-second guide rail, 52-positioning block, 53-third telescopic member. DETAILED DESCRIPTION

[0026] The following embodiments of the technical solution of the utility model are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and are therefore only used as examples, and cannot be used to limit the protection scope of the utility model.

[0027] In the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0028] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship 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.

[0029] See also Figure 1-Figure 5 The utility model provides an embodiment of a boom processing tool, comprising: a base 2 and a clamping mechanism 2, wherein two clamping mechanisms 2 are arranged oppositely on both sides of the base 2 in the length direction; the clamping mechanism 2 comprises: a first guide rail 21, a first telescopic member 22 and a clamping block 23; the first guide rail 21 is installed on the base 2, and the first guide rail 21 is arranged along the length direction of the boom, the clamping block 23 is slidably installed on the first guide rail 21, and the first telescopic member 22 can push the clamping block 23 to slide on the first guide rail 21.

[0030] In specific implementation, the first telescopic member 22 is controlled to move, and the first telescopic member 22 drives the clamping block 23 to slide on the first guide rail 21 toward the movable arm. The two clamping blocks 23 apply a clamping force in opposite directions to the two ends of the movable arm in the length direction, so that the movable arm can be positioned and clamped in the length direction, reducing the swing amplitude of the movable arm in the length direction, and improving the processing accuracy of the movable arm. Specifically, the first telescopic member 22 can be a hydraulic cylinder, a pneumatic cylinder, an electric push rod, etc.

[0031] See also Figure 1-Figure 5 In other embodiments, each clamping mechanism 2 is mounted on the base 2 through an adjusting mechanism 3; the adjusting mechanism 3 includes: a slide rail 31 and a slide seat 32; the slide rail 31 is arranged along the length direction of the base 2 and is fixedly mounted on the base 2; the slide seat 32 is slidably mounted on the slide rail 31, and the first guide rail 21 is fixedly mounted on the slide seat 32. In specific implementation, the slide seat 32 drives the clamping mechanism 2 to slide on the slide rail 31, so that the position in the length direction of the boom can be adjusted in a wide range, so as to adapt to booms of different lengths. Specifically, after the position adjustment of the two slide seats 32 is completed, the position of the slide seat 32 can be fixed by plugging the pins into different slots. Further, the adjusting mechanism 3 also includes a screw rod 33, which is rotatably mounted on the base 2, and the screw rod 33 passes through the slide seat 32 and is threadedly connected to the slide seat 32; by rotating the screw rod 33, the slide seat 32 is driven to move on the slide rail 31, so that the position of the slide seat 32 can be more finely adjusted.

[0032] See also Figure 1-Figure 5In other embodiments, it also includes a counter clamping mechanism 4; the counter clamping mechanism 4 includes two clamping components symmetrically arranged along the width direction of the boom, and the clamping components include: a mounting seat 41, a second telescopic member 42 and a clamping block 43; the second telescopic member 42 is fixedly mounted on the base 2 through the mounting seat 41, and the clamping block 43 is detachably mounted on the second telescopic member 42, and the second telescopic member 42 can drive the clamping block 43 to move along the width direction of the boom. In specific implementation, a counter clamping mechanism 4 is respectively set at the front support, middle support and rear support of the boom; the second telescopic member 42 drives the clamping block 43 to move toward the outer side wall in the width direction of the boom, and applies a pressure to the outer side wall of the boom. Through two symmetrically arranged clamping blocks 43, the width direction of the boom can be clamped to improve the stability of the boom; and by disassembling and replacing the clamping blocks 43 of different models and sizes, it can adapt to different models of booms. Specifically, the second telescopic member 42 can be a hydraulic cylinder, a cylinder, an electric push rod and other structures.

[0033] See also Figure 1-Figure 5 In another embodiment, a centering positioning mechanism 5 is further included. The centering positioning mechanism 5 includes two positioning components symmetrically arranged along the width direction of the boom, and the positioning components include a second guide rail 51, a positioning block 52, and a third telescopic member 53; the second guide rail 51 is installed on the base 2, and the positioning block 52 is slidably installed on the second guide rail 51, and the third telescopic member 53 can drive the positioning block 52 to slide. In specific implementation, the two third telescopic members 53 are telescoped at the same time, driving the positioning block 52 to slide the same distance on the second guide rail 51, so as to push the boom to move toward the center and complete the positioning of the boom. Specifically, the third telescopic member 53 can be a hydraulic cylinder, a pneumatic cylinder, an electric push rod, and the like.

[0034] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and specification of the present invention.

Claims

1. A boom processing tool, characterized in that: include: Base; and A clamping mechanism, wherein two clamping mechanisms are arranged opposite to each other on both sides of the base in the length direction; The clamping mechanism includes: a first guide rail, a first telescopic member and a clamping block; the first guide rail is installed on the base, and the first guide rail is arranged along the length direction of the movable arm, the clamping block is slidably installed on the first guide rail, and the first telescopic member can push the clamping block to slide on the first guide rail.

2. The movable arm processing tooling according to claim 1, characterized in that: Each of the clamping mechanisms is installed on the base through an adjusting mechanism; the adjusting mechanism includes: a slide rail and a slide seat; the slide rail is arranged along the length direction of the base and is fixedly installed on the base; the slide seat is slidably installed on the slide rail, and the first guide rail is fixedly installed on the slide seat.

3. A movable arm processing tooling according to claim 2, characterized in that: The adjusting mechanism also includes a screw rod, which is rotatably mounted on the base, and the screw rod passes through the slide seat and is threadedly connected to the slide seat.

4. The movable arm processing tooling according to claim 1, characterized in that: It also includes an opposing clamping mechanism; the opposing clamping mechanism includes two clamping components symmetrically arranged along the width direction of the movable arm, and the clamping components include: a mounting seat, a second telescopic member and a clamping block; the second telescopic member is fixedly mounted on the base through the mounting seat, the clamping block is detachably mounted on the second telescopic member, and the second telescopic member can drive the clamping block to move along the width direction of the movable arm.

5. The movable arm processing tool according to claim 1, characterized in that: It also includes a centering positioning mechanism, which includes two positioning components symmetrically arranged along the width direction of the movable arm, and the positioning component includes a second guide rail, a positioning block and a third telescopic member; the second guide rail is installed on the base, the positioning block is slidably installed on the second guide rail, and the third telescopic member can drive the positioning block to slide.

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