End positioning and supporting tool for excavator movable arm

Abstract

The utility model discloses an end positioning and supporting tool for an excavator movable arm, and belongs to the technical field of excavator manufacturing. Comprising a bottom plate, and a plurality of equal-height seats, end positioning assemblies and lug plate positioning assemblies are arranged on the bottom plate; the lug plate positioning assembly comprises a lug plate cushion block, the lug plate cushion block is in threaded connection with a core rod, and the core rod is sleeved with a supporting cushion block; the end positioning assembly comprises an end positioning seat and a rotary supporting seat, a positioning cushion block and a positioning pressing plate are detachably connected to the end positioning seat, and a supporting arm is arranged on the rotary supporting seat; the positioning cushion block and the positioning pressing plate can be clamped on the two sides of the exterior of the excavator movable arm end, positioning columns capable of being matched with pin holes in the excavator movable arm end in an inserted mode are arranged on the opposite sides of the positioning cushion block and the positioning pressing plate, and the supporting arm can be supported in the middle of the excavator movable arm end. The end positioning and supporting tool for the excavator movable arm can solve the problems that in the prior art, operation is not easy, and the front end and the rear end of the excavator movable arm are not supported.

Description

Technical Field

[0001] The utility model belongs to the technical field of excavator manufacturing, and particularly relates to a head positioning and supporting tooling for an excavator boom. Background Technique

[0002] In the prior art (patent application number: 202321755589.7), a processing tooling for an excavator boom is disclosed, which includes a main body base and several fixing components; several fixing pins and movable pins that are respectively inserted and matched with the pin holes on the excavator boom are arranged on the main body base, two pin plates are arranged on the main body base, and several positioning holes for embedding the movable pins are respectively arranged on the two pin plates; several fixing components include fixing pieces, connecting pieces, and fixing bases, the connecting pieces are sleeved on the lead screws of the fixing pieces, and the fixing pieces include a tightening block movably sleeved on one end of the lead screw and a crank handle detachably installed on the other end of the lead screw. The pin holes on the front end head, rear end head, and ear plate can be respectively sleeved on the fixing pins or movable pins, and then by adjusting the position of the connecting piece and twisting the lead screw by rotating the crank handle, the tightening block at one end of the lead screw can firmly abut against the excavator boom to complete the precise fixing of the excavator boom.

[0003] In the prior art, although the fixing of the excavator boom can be accurately completed in this way, thereby reducing the time for dial indicator alignment, when the operator sleeves the pin holes on the front end head, rear end head, and ear plate on the fixing pins or movable pins respectively in the early stage, it is necessary to adjust the position of the excavator boom multiple times to complete, and this operation requires the operator to have a high level of proficiency. At the same time, in the prior art, there is a lack of support for the front end head and rear end head of the excavator boom, and local deformation is likely to occur during the finish machining of the front end head and rear end head of the excavator boom.

[0004] Therefore, there is an urgent need for a head positioning and supporting tooling for an excavator boom that is easy to operate and can support the front end head and rear end head of the excavator boom. Content of the Utility Model

[0005] The purpose of the utility model is to overcome the deficiencies in the prior art and provide a head positioning and supporting tooling for an excavator boom, which can solve the problems of difficult operation and lack of support for the front end head and rear end head of the excavator boom in the prior art.

[0006] To achieve the above purpose, the technical solution adopted by the utility model is: a head positioning and supporting tooling for an excavator boom, including a bottom plate, and several equal-height seats, head positioning components, and ear plate positioning components are arranged on the bottom plate;

[0007] The ear plate positioning component includes an ear plate spacer, a core rod is threadedly connected to the ear plate spacer, and a support spacer is sleeved on the core rod;

[0008] The end positioning assembly includes an end positioning seat and a rotating support seat. A positioning cushion block and a positioning pressing plate are detachably connected to the end positioning seat. A support arm is provided on the rotating support seat and can rotate between the positioning cushion block and the positioning pressing plate.

[0009] The positioning cushion block and the positioning pressing plate can be clamped on both sides of the outside of the end of the excavator boom. And on the opposite sides of the positioning cushion block and the positioning pressing plate, there are positioning columns that can be inserted and matched with the pin holes at the end of the excavator boom. The support arm can support the middle part of the end of the excavator boom.

[0010] Optionally, the height of the positioning column is less than the depth of the pin hole at the end of the excavator boom, and a chamfer is provided at the end of the positioning column.

[0011] Optionally, a number of equal-height cushion blocks are detachably connected to the equal-height seat, and each equal-height cushion block can support the bottom of the excavator boom.

[0012] Optionally, on the equal-height seat, there are a first vertical plate and a second vertical plate arranged oppositely in the vertical direction. The first vertical plate and the second vertical plate are clamped on the outside of the excavator boom. And on the first vertical plate, a first lead screw is threadedly connected in the horizontal direction. The first lead screw penetrates through the first vertical plate, and at one end of the first lead screw facing the second vertical plate, there is a clamping block that can abut against the excavator boom.

[0013] Optionally, on the side of the second vertical plate facing the excavator boom, it is in a semi-circular arc shape.

[0014] Optionally, a downward pressure base is provided on the bottom plate. On the downward pressure base, there is a downward pressure arm that can rotate above the excavator boom. A second lead screw is vertically penetrated through the downward pressure arm. The second lead screw is threadedly connected to the downward pressure arm, and at one end of the second lead screw facing the excavator boom, there is a pressing block.

[0015] Optionally, through holes are provided at one ends of the first lead screw away from the clamping block and at one ends of the second lead screw away from the pressing block.

[0016] Optionally, one end of the positioning pressing plate is vertically and movably inserted into the end positioning seat, and a number of threaded pin columns that can be threadedly connected to the end positioning seat are vertically penetrated through the positioning pressing plate.

[0017] Compared with the prior art, the beneficial effects achieved by the present utility model are as follows: Through the insertion and cooperation of the positioning posts on the positioning pads with the pin holes on the end of the excavator boom, one end of the excavator boom is initially positioned, enabling the excavator boom to rotate with this end as the rotation axis, facilitating the positioning of the other end of the excavator boom through the positioning pads and positioning posts on another set of end positioning components, and thus quickly and accurately completing the positioning work of the excavator boom. At the same time, by rotating the support arm on the rotating support base to support it at the middle position of the end of the excavator boom, and then after fastening the positioning pressure plate to the end positioning seat, the positioning posts on the positioning pressure plate can further position the position of the excavator boom. Cooperating with the support arm, it can effectively support the end of the excavator boom while ensuring the positioning accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0019] Figure 1 FIG. is a schematic structural diagram of the end positioning and supporting tooling for the excavator boom in the preferred embodiment of the present utility model;

[0020] Figure 2 FIG. is a schematic structural diagram when the excavator boom is fixed to the end positioning and supporting tooling for the excavator boom in the preferred embodiment of the present utility model;

[0021] Wherein, 1. Base plate; 2. Equal-height seat; 3. Ear plate pad; 4. Mandrel; 5. Support pad; 6. End positioning seat; 7. Rotating support base; 8. Positioning pad; 9. Positioning pressure plate; 10. Support arm; 11. Positioning post; 12. Equal-height pad; 13. First vertical plate; 14. Second vertical plate; 15. First lead screw; 16. Clamping block; 17. Lower pressing base; 18. Lower pressing arm; 19. Second lead screw; 20. Pressing block; 21. Threaded pin post. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The present utility model will now be further described in detail in conjunction with the drawings and embodiments. These drawings are all simplified schematic diagrams, only illustrating the basic structure of the present utility model in a schematic manner, so they only show the components related to the present utility model.

[0023] It should be noted that if there are directional indications (such as up, down, bottom, top, etc.) involved in this embodiment, the directional indications are only used to explain the relative positional relationship, movement conditions, etc. between components in a specific posture. If the specific posture changes, the directional indications will also change accordingly. The terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. Unless otherwise clearly specified and defined, the terms "set", "connected", and "connected to" 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0024] As Figure 1 - Figure 2 shown, a head positioning and supporting tooling for an excavator boom includes a bottom plate 1, and a plurality of equal-height seats 2, a head positioning assembly, and an ear plate positioning assembly are arranged on the bottom plate 1; the ear plate positioning assembly includes an ear plate spacer 3, a core rod 4 is threadedly connected to the ear plate spacer 3, and a support spacer 5 is sleeved on the core rod 4. Specifically, as Figure 2 shown, the ear plate part on the excavator boom can be placed on the ear plate spacer 3, the support spacer 5 can be placed between two ear plates on the excavator boom, the core rod 4 can penetrate through the upper ear plate of the excavator boom, pass through the support spacer 5, and then penetrate out from the lower ear plate of the excavator boom, and is threadedly connected to the ear plate spacer 3. After fastening, it can support and fix the ear plate on the excavator boom.

[0025] The head positioning assembly includes a head positioning seat 6 and a rotating support seat 7. A positioning spacer 8 and a positioning pressing plate 9 are detachably connected to the head positioning seat 6. A support arm 10 that can rotate between the positioning spacer 8 and the positioning pressing plate 9 is arranged on the rotating support seat 7; the positioning spacer 8 and the positioning pressing plate 9 can be clamped on both sides outside the head of the excavator boom, and a positioning post 11 that can be inserted and matched with the pin hole at the head of the excavator boom is arranged on the opposite side of the positioning spacer 8 and the positioning pressing plate 9, and the support arm 10 can support the middle part of the head of the excavator boom.

[0026] Specifically, before positioning and fixing the excavator boom, the operator can use tools such as a crane to place the excavator boom on the equal-height seat 2 on the bottom plate 1. Subsequently, by adjusting the position of one of the heads of the excavator boom, one of the pin holes on the head of the excavator boom is inserted into the positioning post 11 on the positioning spacer 8, and then the support arm 10 is rotated. Specifically, as Figure 2As shown, it is supported between two pin holes at the end of the excavator boom. Subsequently, the positioning pressure plate 9 is installed on the end positioning seat 6 (the positioning pressure plate 9 is not completely fixed to the end positioning seat 6). The positioning post 11 on the positioning pressure plate 9 is inserted into another pin hole on the same end of the excavator boom to completely position one end of the excavator boom. Then, the excavator boom is rotated around this end so that the other end of the excavator boom can be positioned through another set of end positioning components. Subsequently, the positioning of the ear plate is completed through the ear plate positioning components. Finally, the mandrel 4 is fastened to the ear plate spacer 3, and the positioning pressure plate 9 is fastened to the end positioning seat 6, thus completing the overall positioning and fixing of the excavator boom. At the same time, when fastening the positioning pressure plate 9 to the end positioning seat 6, the support arm 10 can stably support on the end of the excavator boom, effectively preventing the end from deforming. The end positioning and supporting tooling for the excavator boom in this technical solution has a low requirement for the proficiency of operators and can quickly and accurately complete the positioning operation of the excavator boom.

[0027] As described above, the components of the equal-height seat 2, the end positioning components, and the ear plate positioning components that come into contact with the excavator boom are all hardened and can be replaced according to different models of excavator booms to increase the versatility of the end positioning and supporting tooling for the excavator boom in this technical solution. At the same time, one end of the positioning pressure plate 9 is movably inserted into the end positioning seat 6 in the vertical direction, and several threaded pin columns 21 that can be threadedly connected to the end positioning seat 6 are vertically provided on the positioning pressure plate 9. The positioning pressure plate 9 can be fastened to the end positioning seat 6 through the threaded pin columns 21.

[0028] Furthermore, to facilitate the insertion of the positioning post 11 into the pin hole at the end of the excavator boom, the height of the positioning post 11 is less than the depth of the pin hole at the end of the excavator boom. That is, when adjusting the position of the excavator boom, it is not necessary to lift the entire excavator boom. And a chamfer is provided at the end of the positioning post 11 to facilitate the insertion of the positioning post 11 into the pin hole.

[0029] Furthermore, as Figure 1 shown, several equal-height spacers 12 are detachably connected to the equal-height seat 2, and each equal-height spacer 12 can support on the bottom of the excavator boom. The heights of the several equal-height spacers 12 can be replaced and adjusted according to different positions at the bottom of the excavator boom of the excavator, and can fully support on the bottom of the excavator boom to maintain stability.

[0030] Further, on the equal-height seat 2, first and second vertical plates 13 and 14 are provided opposite to each other in the vertical direction. The first and second vertical plates 13 and 14 are clamped outside the boom of the excavator. A first lead screw 15 is threadedly connected to the first vertical plate 13 in the horizontal direction. The first lead screw 15 penetrates through the first vertical plate 13. One end of the first lead screw 15 facing the second vertical plate 14 is rotatably connected to a clamping block 16 that can abut against the boom of the excavator. By turning the first lead screw 15, the clamping block 16 can cooperate with the second vertical plate 14 to clamp outside the boom of the excavator, further fixing the position of the boom.

[0031] As described above, as Figure 1 shown, the side of the second vertical plate 14 facing the boom of the excavator is semicircular. The contact surface between the second vertical plate 14 and the boom is linear, with small friction and can adapt to different positions on the boom of the excavator.

[0032] Further, a pressing base 17 is provided on the bottom plate 1. A pressing arm 18 that can rotate above the boom of the excavator is provided on the pressing base 17. A second lead screw 19 is vertically penetrated through the pressing arm 18. The second lead screw 19 is threadedly connected to the pressing arm 18. One end of the second lead screw 19 facing the boom of the excavator is rotatably connected to a pressing block 20. By turning the second lead screw 19, the pressing block 20 can press down on the boom of the excavator, further fixing the position of the boom.

[0033] As described above, for the convenience of the operator to turn the first lead screw 15 and the second lead screw 19, through holes are provided at one end of the first lead screw 15 away from the clamping block 16 and one end of the second lead screw 19 away from the pressing block 20. The operator can insert tools such as a metal bar or a crowbar into the through holes on the first lead screw 15 and the second lead screw 19 to turn the first lead screw 15 and the second lead screw 19 by leveraging.

[0034] Working principle: Through the insertion and cooperation of the positioning posts 11 on the positioning pads 8 and the pin holes at the end of the boom of the excavator, one end of the boom of the excavator is initially positioned, enabling the boom of the excavator to rotate with this end as the rotation axis, facilitating the positioning of the other end of the boom of the excavator through the positioning pads 8 and the positioning posts 11 on the other set of end positioning components, which is convenient for operation. At the same time, by rotating the support arm 10 on the rotary support seat 7 to support it at the middle position of the end of the boom of the excavator, and then after fastening the positioning pressure plate 9 and the end positioning seat 6, it can effectively support the end of the boom of the excavator while ensuring the positioning accuracy.

[0035] Based on the ideal embodiments of the present invention as the inspiration, through the above description, relevant personnel can completely make various changes and modifications within the scope not deviating from the technical idea of this invention. The technical scope of this invention is not limited to the content in the specification, and the technical scope must be determined according to the scope of the claims.

Claims

1. An excavator boom end positioning support tooling, characterized in that: It comprises a base plate (1), on which a plurality of equal-height seats (2), an end positioning component and an ear plate positioning component are arranged; The ear plate positioning assembly comprises an ear plate pad (3), a core rod (4) is threadedly connected to the ear plate pad (3), and a support pad (5) is sleeved on the core rod (4); The end head positioning assembly comprises an end head positioning seat (6) and a rotating support seat (7); the end head positioning seat (6) is detachably connected with a positioning cushion block (8) and a positioning pressure plate (9); the rotating support seat (7) is provided with a support arm (10) capable of rotating between the positioning cushion block (8) and the positioning pressure plate (9); The positioning pad (8) and the positioning pressure plate (9) can be clamped on both sides of the outside of the excavator boom end, and a positioning column (11) capable of plugging and cooperating with a pin hole of the excavator boom end is provided on the opposite side of the positioning pad (8) and the positioning pressure plate (9), and the support arm (10) can be supported in the middle of the excavator boom end.

2. The end positioning and supporting tool for the excavator boom according to claim 1, characterized in that: The height of the positioning column (11) is less than the depth of the pin hole at the end of the excavator boom, and the end of the positioning column (11) is provided with a chamfer.

3. The end positioning and supporting tool for the excavator boom according to claim 1, characterized in that: A plurality of contour pads (12) are detachably connected to the contour seat (2), and each of the contour pads (12) can be supported on the bottom of the excavator boom.

4. The end positioning and supporting tool for the excavator boom according to claim 1, characterized in that: The equal height seat (2) is provided with a first vertical plate (13) and a second vertical plate (14) arranged opposite to each other in the vertical direction; the first vertical plate (13) and the second vertical plate (14) are clamped on the outside of the excavator boom; and a first screw rod (15) is threadedly connected to the first vertical plate (13) in the horizontal direction; the first screw rod (15) passes through the first vertical plate (13); and a clamping block (16) capable of abutting against the excavator boom is rotatably connected to one end of the first screw rod (15) facing the second vertical plate (14).

5. The end positioning and supporting tool for the excavator boom according to claim 4, characterized in that: The side of the second vertical plate (14) facing the excavator boom is in a semicircular arc shape.

6. The end positioning and supporting tool for the excavator boom according to claim 4, characterized in that: A pressing base (17) is provided on the bottom plate (1), and a pressing arm (18) which can be rotated to the top of the excavator arm is provided on the pressing base (17), and a second screw rod (19) is passed through the pressing arm (18) in a vertical direction, the second screw rod (19) is threadedly connected to the pressing arm (18), and a pressing block (20) is rotatably connected to one end of the second screw rod (19) facing the excavator arm.

7. The end positioning and supporting tool for the excavator boom according to claim 6, characterized in that: One end of the first screw rod (15) away from the clamping block (16) and one end of the second screw rod (19) away from the pressing block (20) are both provided with through holes.

8. The end positioning and supporting tool for an excavator boom according to claim 1, characterized in that: One end of the positioning pressure plate (9) is movably inserted into the end head positioning seat (6) in the vertical direction, and a plurality of threaded pins (21) capable of being threadedly connected to the end head positioning seat (6) are provided on the positioning pressure plate (9) in the vertical direction.

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