Welding deformation prevention tool for multi-model excavator movable arm

Abstract

The utility model discloses a welding deformation prevention tool for multi-model excavator movable arms, which relates to the technical field of excavator movable arm production and comprises a platform base, a front fork positioning seat, a rear seat positioning seat and a hub fishtail positioning seat. In the production process of the movable arm of the excavator, each part of the movable arm of the excavator can be accurately positioned and fixed, and the assembly size accuracy of a connecting plate is improved, so that the welding quality of the connecting plate is ensured, and the purpose of rapid assembly welding is achieved; and the phenomenon that the swing arm side plate is distorted and deformed in the welding process is effectively avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of excavator boom production, in particular to an anti-welding deformation tooling for excavator booms of multiple models. Background Art

[0002] In the structure of the excavator, the boom is used to connect the body and the dipper arm, and has a large span. Therefore, during operation, the entire boom is subjected to tensile and shear forces, and is more likely to be torn. Therefore, high quality requirements are placed on the boom welding and forming, and plate and welding defects are not allowed.

[0003] In the prior art, due to the large span and various models of the boom, it is necessary to assemble and weld the boom according to different models during production. Since the assembly production of the boom requires multiple continuous welding, it is affected by the welding stress, resulting in two major deformations of the excavator boom after welding: one is a certain degree of twisting deformation of the boom plate, and the other is warping deformation and inward contraction of the two ends of the boom plate, which directly affects the subsequent processing and assembly of the boom and the use of the product; and the traditional assembly welding mode has low welding accuracy and relatively low production efficiency, and cannot ensure the quality of the formed product. Utility Model Content

[0004] The utility model aims to provide a welding deformation prevention tooling for the boom of multiple types of excavators, so as to solve the problems of low welding precision, low production efficiency and low quality of formed products in the traditional welding mode proposed in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an anti-welding deformation tooling for the boom of multiple types of excavators, comprising a horizontally arranged platform base, and a front fork locating seat near the left end, a rear seat locating seat near the right end and a wheel hub fishtail locating seat located in the middle are arranged at the transverse center line of the top surface; the front fork locating seat comprises two groups of front fork locating seats with the same structure arranged on the left and right, namely a first front fork locating seat on the left and a second front fork locating seat on the right.

[0006] Preferably, the first front fork positioning seat includes two horizontal concave-shaped front fork positioning bottom plates which are symmetrically arranged on the top surface of the platform base about its transverse center line. The top surface of the front fork positioning bottom plate is provided with a front fork positioning support plate with a concave notch at the center of the bottom surface on the side with the notch. A front fork pressure plate is hingedly arranged at the center of the top surface of the front fork positioning support plate, and a front fork rotation locking screw is hingedly arranged on both the left and right side surfaces. The other end of the front fork pressure plate is provided with a notch and can be locked and fixed with the front fork rotation locking screw. Concave front fork semicircular grooves are provided on the top surface of the front fork positioning support plate on the left and right sides of the front fork pressure plate hinge point. The two front fork semicircular grooves facing each other front and back are coaxially arranged and jointly provided with a front fork positioning pin, and are clamped and fixed by the front fork pressure plate; and a front fork positioning stop is provided below the front fork positioning pin.

[0007] Preferably, a plurality of front fork positioning ribs are arranged between the outer side surface of the front fork positioning support plate and the front fork positioning bottom plate; and two front fork tightening bolts are penetrated through one of the front fork positioning support plates close to the rear side near the left and right side edges thereof.

[0008] Preferably, the structure of the second front fork locating seat is the same as that of the first front fork locating seat, including two front fork positioning base plates, two front fork positioning support plates, two front fork pressure plates, four front fork rotation locking screws, four front fork semicircular grooves, a front fork locating pin, a front fork positioning stop, a plurality of front fork positioning ribs, and two front fork tightening bolts.

[0009] Preferably, the rear seat positioning seat includes a concave rear seat positioning bottom plate symmetrically arranged with the transverse center line of the platform base, a rear seat positioning vertical plate is arranged on the top surface of the rear seat positioning bottom plate on one side of the notch, and a rear seat rotation pressure plate is hingedly arranged at the center of the top surface of the rear seat positioning vertical plate, and a rear seat rotation locking screw is hingedly arranged on the front and rear side surfaces of the rear seat positioning vertical plate, and the other end of the rear seat rotation pressure plate is provided with a notch and can be locked and fixed with the rear seat rotation locking screw; the rear seat positioning vertical plate is provided with a concave rear seat semicircular groove on both sides of the rear seat rotation pressure plate, and the two rear seat semicircular grooves facing each other front and back are coaxially arranged and jointly provided with a rear seat positioning shaft, and the front side surface of the rear seat positioning vertical plate located on the rear side is provided with a coaxial semicircular support plate under each rear seat semicircular groove to assist in supporting and fixing the rear seat positioning shaft; the rear seat positioning vertical plate located on the front side is penetrated by a rear seat tightening bolt on both sides of each rear seat semicircular groove.

[0010] Preferably, the wheel hub fishtail positioning seat is symmetrically arranged in two groups front and back with respect to the transverse center line of the platform base, and both groups include a rectangular wheel hub fishtail positioning base plate, a wheel hub fishtail positioning vertical plate is vertically arranged near the inner side on the top surface of the wheel hub fishtail positioning base plate, a plurality of vertical reinforcing rib plates are arranged between the outer side surface of the wheel hub fishtail positioning vertical plate and the wheel hub fishtail positioning base plate, three rectangular fishtail positioning notches at different heights are arranged near the left side of the top end of the wheel hub fishtail positioning vertical plate, and inside the two fishtail positioning notches near the right side. A fishtail positioning shaft is respectively provided; three semicircular hub positioning grooves at different heights are provided near the right side of the top end of the hub fishtail positioning vertical plate, a fixing screw is provided on both sides of each hub positioning groove, and a hub positioning pressure plate is jointly provided on the two fixing screws, and hub positioning shafts are provided in the two hub positioning grooves on the right side, and a hub positioning shaft sleeve is sleeved on each hub positioning shaft; a coaxial and semicircular hub positioning support plate is provided on the front side surface of the hub fishtail positioning vertical plate located on the rear side below each hub positioning groove.

[0011] Preferably, the first front fork positioning seat, two rear seat positioning shafts, rear seat positioning base, two wheel hub positioning grooves and wheel hub positioning shafts located on the left side and two fishtail positioning notches and fishtail positioning shafts located on the left side are used to coordinately position and fix the boom of the 500 type excavator.

[0012] Preferably, the second front fork positioning seat, the rear seat positioning shaft located on the right side, the fishtail positioning notch and the fishtail positioning shaft located on the right side, the wheel hub positioning groove and the wheel hub positioning sleeve located on the right side are used to coordinately position and fix the boom of the 360-degree excavator.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model is used to accurately position and fix various components of the excavator's boom during the production process of the excavator's boom, thereby improving the assembly dimensional accuracy of the connecting plate, thereby ensuring the welding quality of the connecting plate, and further achieving the purpose of rapid assembly welding; it also effectively ensures that the boom side plate is prevented from twisting and deformation during the welding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is the axonometric drawing of the utility model;

[0016] Figure 2 for Figure 1 Structural diagram;

[0017] Figure 3 for Figure 2 A magnified view of middle;

[0018] Figure 4It is a partial axonometric view of the first front fork locating seat or the second front fork locating seat;

[0019] Figure 5 for Figure 4 Axonometric view from above;

[0020] Figure 6 for Figure 1 Top view;

[0021] In the figure: platform base-1, front fork positioning seat-2, first front fork positioning seat-21, front fork positioning bottom plate-201, front fork positioning support plate-202, front fork pressure plate-203, front fork rotation locking screw-204, front fork semicircular groove-205, front fork positioning pin-206, front fork positioning stop-207, front fork positioning rib plate-208, front fork tightening bolt-209, second front fork positioning seat-22, rear seat positioning seat-3, rear seat positioning bottom plate-31, rear seat positioning vertical plate-32, rear seat rotation pressure plate-33, Rear seat rotation locking screw -34, rear seat semicircular groove -35, rear seat positioning shaft -36, semicircular support plate -37, rear seat tightening bolt -38, rear seat positioning base -39, wheel hub fishtail positioning seat -4, wheel hub fishtail positioning bottom plate -41, wheel hub fishtail positioning vertical plate -42, fishtail positioning notch -43, fishtail positioning shaft -44, wheel hub positioning groove -45, fixing screw -46, wheel hub positioning pressure plate -47, wheel hub positioning shaft -48, wheel hub positioning sleeve -49, reinforcing rib plate -40, wheel hub positioning support plate -50. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the technical solution of the present utility model, the technical solution in the embodiments of the present utility model is clearly and completely described below in conjunction with the accompanying drawings and specific embodiments.

[0023] Please refer to Figure 1-6 , Figure 1 This is the axonometric drawing of the utility model; Figure 2 for Figure 1 Structural diagram; Figure 3 for Figure 2 A magnified view of middle; Figure 4 It is a partial axonometric view of the first front fork locating seat or the second front fork locating seat; Figure 5 for Figure 4 Axonometric view from above; Figure 6 for Figure 1 Top view.

[0024] The utility model provides an anti-welding deformation tooling for the boom of multiple models of excavators, which is used for assisting in positioning and fixing the boom during its production process and preventing deformation caused by welding; it comprises a horizontally arranged platform base 1, on the top surface of the platform base 1, a front fork positioning seat 2 near the left end, a rear seat positioning seat 3 near the right end, and a wheel hub fishtail positioning seat 4 located in the middle are arranged at its transverse center line.

[0025] The front fork positioning seat 2 includes two groups of front fork positioning seats with the same structure arranged on the left and right, namely a first front fork positioning seat 21 on the left side used for positioning the front fork of the 500-type excavator boom and a second front fork positioning seat 22 on the right side used for positioning the front fork of the 360-type excavator boom;

[0026] The first front fork positioning seat 21 includes two horizontal concave-shaped front fork positioning bottom plates 201 symmetrically arranged on the top surface of the platform base 1 along its transverse center line, and a vertical front fork positioning support plate 202 is arranged on the top surface of the notched side of the front fork positioning bottom plate 201, and an upward concave notch is arranged at the center of the bottom surface of the front fork positioning support plate 202, and a front fork pressure plate 203 is hingedly arranged at the center of the top surface of the front fork positioning support plate 202, and a front fork rotating plate 203 is hingedly arranged on both the left and right sides. The locking screw 204 is provided with a notch at the other end of the front fork pressure plate 203 and can be locked and fixed with the front fork rotation locking screw 204. The top surface of the front fork positioning support plate 202 is provided with concave front fork semicircular grooves 205 on the left and right of the hinge point of the front fork pressure plate 203. The two front fork semicircular grooves 205 facing each other front and back are coaxially arranged and jointly provided with a front fork positioning pin 206, and are clamped and fixed using the front fork pressure plate 203; and a front fork positioning stop 207 is provided below the front fork positioning pin 206.

[0027] A plurality of front fork positioning ribs 208 are provided between the outer side surface of the front fork positioning support plate 202 and the front fork positioning bottom plate 201; and two front fork tightening bolts 209 are provided through one of the front fork positioning support plates 202 near the rear side near the left and right sides thereof.

[0028] The structure of the second front fork locating seat 22 is the same as that of the first front fork locating seat 21, including two front fork positioning base plates 201, two front fork positioning support plates 202, two front fork pressure plates 203, four front fork rotation locking screws 204, four front fork semicircular grooves 205, a front fork locating pin 206, a front fork positioning block 207, a plurality of front fork positioning ribs 208, and two front fork tightening bolts 209.

[0029] The rear seat positioning seat 3 comprises a concave rear seat positioning bottom plate 31 symmetrically arranged with respect to the transverse center line of the platform base 1, a rear seat positioning vertical plate 32 is arranged on the top surface of the rear seat positioning bottom plate 31 on one side of the notch, a rear seat rotation pressure plate 33 is hingedly arranged at the center of the top surface of the rear seat positioning vertical plate 32, a rear seat rotation locking screw 34 is hingedly arranged on the front and rear side surfaces of the rear seat positioning vertical plate 32, and the other end of the rear seat rotation pressure plate 33 is provided with a notch and can be locked and fixed with the rear seat rotation locking screw 34; The rear seat positioning upright plate 32 is provided with concave rear seat semicircular grooves 35 on both sides of the rear seat rotating pressure plate 33. The two rear seat semicircular grooves 35 facing each other front and back are coaxially arranged and jointly provided with a rear seat positioning shaft 36. The front side surface of the rear seat positioning upright plate 32 located on the rear side is provided with a coaxial semicircular supporting plate 37 under each rear seat semicircular groove 35 to assist in supporting and fixing the rear seat positioning shaft 36; the rear seat positioning upright plate 32 located on the front side is provided with a rear seat tightening bolt 38 penetrating through both sides of each rear seat semicircular groove 35.

[0030] Both rear seat positioning shafts 36 can be used for the rear seat positioning and fixing of the boom of the 500 type excavator. The rear seat positioning shaft 36 on the right side can be used for the rear seat positioning and fixing of the boom of the 360 ​​type excavator. At the same time, a rear seat positioning base 39 is arranged on the platform base 1 on the left side of the rear seat positioning shaft 36, and the rear seat positioning base 39 can be used for the rear seat positioning and fixing of the boom of the 500 type excavator.

[0031] The wheel hub fishtail positioning seat 4 is symmetrically arranged in two groups with respect to the transverse center line of the platform base 1, and both groups include a rectangular wheel hub fishtail positioning base plate 41, and a wheel hub fishtail positioning upright plate 42 is vertically arranged near the inner side on the top surface of the wheel hub fishtail positioning base plate 41, and a plurality of vertical reinforcing rib plates 40 are arranged between the outer side surface of the wheel hub fishtail positioning upright plate 42 and the wheel hub fishtail positioning base plate 41, so as to ensure the verticality of the wheel hub fishtail positioning upright plate 42; three rectangular fishtail positioning notches 43 at different heights are arranged near the left side of the top end of the wheel hub fishtail positioning upright plate 42, and a fishtail positioning shaft 44 is respectively arranged in the two fishtail positioning notches 43 near the right side; the two fishtail positioning notches 43 and the fishtail positioning shaft 44 on the left side are used for the 500 type. It is used for positioning and fixing the excavator boom; three semicircular hub positioning grooves 45 at different heights are arranged near the right side of the top of the hub fishtail positioning vertical plate 42, and a fixing screw 46 is arranged on both sides of each hub positioning groove 45, and a hub positioning pressure plate 47 is arranged together with the two fixing screws 46, and a hub positioning shaft 48 is arranged in the two hub positioning grooves 45 on the right side, and a hub positioning shaft sleeve 49 is sleeved on each hub positioning shaft 48; a coaxial and semicircular hub positioning support plate 50 is arranged on the front side surface of the hub fishtail positioning vertical plate 42 located on the rear side below each hub positioning groove 45 for auxiliary support and fixing; the two hub positioning grooves 45 and the hub positioning shaft 48 located on the left side are used for positioning and fixing the boom of the 500 type excavator.

[0032] The utility model is used to accurately position and fix various components of the excavator's boom during the production process of the excavator's boom, thereby improving the assembly dimensional accuracy of the connecting plate, thereby ensuring the welding quality of the connecting plate, and further achieving the purpose of rapid assembly welding; it also effectively ensures that the boom side plate is prevented from twisting and deformation during the welding process.

[0033] Although the embodiments of the utility model have been shown and described, it is obvious that the described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, it can be understood by ordinary technicians in this field that all other embodiments obtained by making various changes, modifications, substitutions and variations to these embodiments without departing from the principle and spirit of the utility model and without making creative work, all belong to the scope of protection of the utility model.

Claims

1. A welding deformation prevention tool for the boom of multiple types of excavators, characterized by: The invention comprises a horizontally arranged platform base (1), and a front fork positioning seat (2) close to the left end, a rear seat positioning seat (3) close to the right end, and a wheel hub fishtail positioning seat (4) located in the middle are arranged at the transverse center line of the top surface; the front fork positioning seat (2) comprises two groups of front fork positioning seats with the same structure arranged on the left and right, namely a first front fork positioning seat (21) on the left and a second front fork positioning seat (22) on the right.

2. The welding deformation prevention tooling for the boom of multiple types of excavators according to claim 1 is characterized in that: The first front fork positioning seat (21) comprises two horizontal concave-shaped front fork positioning base plates (201) arranged symmetrically on the top surface of the platform base (1) along its transverse center line, the top surface of the front fork positioning base plate (201) is provided with a vertical front fork positioning support plate (202) with an upward concave notch at the center of the bottom surface, the center of the top surface of the front fork positioning support plate (202) is hingedly provided with a front fork pressure plate (203), and a front fork rotation locking screw (204) is hingedly provided on both left and right side surfaces, The other end of the front fork pressure plate (203) is provided with a notch and can be locked and fixed with the front fork rotation locking screw (204); the top surface of the front fork positioning support plate (202) is provided with concave front fork semicircular grooves (205) on the left and right of the hinge point of the front fork pressure plate (203); the two front fork semicircular grooves (205) facing each other front and back are coaxially arranged and jointly provided with a front fork positioning pin (206), and are clamped and fixed using the front fork pressure plate (203); and a front fork positioning stopper (207) is provided below the front fork positioning pin (206).

3. The welding deformation prevention tooling for the boom of multiple types of excavators according to claim 2 is characterized in that: A plurality of front fork positioning ribs (208) are arranged between the outer side surface of the front fork positioning support plate (202) and the front fork positioning bottom plate (201); and two front fork tightening bolts (209) are arranged through one of the front fork positioning support plates (202) close to the rear side and close to its left and right side edges.

4. The welding deformation prevention tooling for the boom of multiple types of excavators according to claim 3 is characterized in that: The structure of the second front fork positioning seat (22) is the same as that of the first front fork positioning seat (21), comprising two front fork positioning base plates (201), two front fork positioning support plates (202), two front fork pressure plates (203), four front fork rotation locking screws (204), four front fork semicircular grooves (205), a front fork positioning pin (206), a front fork positioning stopper (207), a plurality of front fork positioning rib plates (208), and two front fork tightening bolts (209).

5. The welding deformation prevention tooling for the boom of multiple types of excavators according to claim 4 is characterized in that: The rear seat positioning seat (3) comprises a concave rear seat positioning base plate (31) symmetrically arranged with respect to the transverse center line of the platform base (1); a rear seat positioning vertical plate (32) is arranged on the top surface of the rear seat positioning base plate (31) on one side of the notch; a rear seat rotating pressure plate (33) is hingedly arranged at the center of the top surface of the rear seat positioning vertical plate (32); a rear seat rotating locking screw (34) is hingedly arranged on the front and rear side surfaces of the rear seat positioning vertical plate (32); the other end of the rear seat rotating pressure plate (33) is provided with a notch and can be locked and fixed with the rear seat rotating locking screw (34); The seat positioning vertical plate (32) is provided with concave rear seat semicircular grooves (35) on both sides of the rear seat rotating pressure plate (33); the two rear seat semicircular grooves (35) facing each other front and back are coaxially arranged and are jointly provided with a rear seat positioning shaft (36); the front side surface of the rear seat positioning vertical plate (32) located at the rear side is provided with a coaxial semicircular support plate (37) below each rear seat semicircular groove (35) to assist in supporting and fixing the rear seat positioning shaft (36); the rear seat positioning vertical plate (32) located at the front side is provided with a rear seat tightening bolt (38) penetrating on both sides of each rear seat semicircular groove (35).

6. The welding deformation prevention tooling for the boom of multiple types of excavators according to claim 5 is characterized in that: The wheel hub fishtail positioning seat (4) is symmetrically arranged in two groups with respect to the transverse center line of the platform base (1), and each group includes a rectangular wheel hub fishtail positioning base plate (41), a wheel hub fishtail positioning vertical plate (42) is vertically arranged near the inner side on the top surface of the wheel hub fishtail positioning base plate (41), a plurality of vertical reinforcing rib plates (40) are arranged between the outer side surface of the wheel hub fishtail positioning vertical plate (42) and the wheel hub fishtail positioning base plate (41), three rectangular fishtail positioning notches (43) at different heights are arranged near the left side of the top end of the wheel hub fishtail positioning vertical plate (42), and a fishtail positioning notch (43) is arranged in each of the two fishtail positioning notches (43) near the right side. The wheel hub fishtail positioning vertical plate (42) is provided with three semicircular wheel hub positioning grooves (45) at different heights near the right side of the top end, each wheel hub positioning groove (45) is provided with a fixing screw (46) on both sides, and the two fixing screws (46) are provided with a wheel hub positioning pressure plate (47) together, and the two wheel hub positioning grooves (45) on the right side are provided with wheel hub positioning shafts (48), and each wheel hub positioning shaft (48) is sleeved with a wheel hub positioning shaft sleeve (49); on the front side of the wheel hub fishtail positioning vertical plate (42) located on the rear side, a coaxial and semicircular wheel hub positioning support plate (50) is provided below each wheel hub positioning groove (45).

7. The welding deformation prevention tooling for the boom of multiple types of excavators according to claim 6 is characterized in that: The first front fork positioning seat (21), two rear seat positioning shafts (36), a rear seat positioning base (39), two wheel hub positioning grooves (45) and wheel hub positioning shafts (48) located on the left side, and two fishtail positioning notches (43) and fishtail positioning shafts (44) located on the left side are used to coordinately position and fix the boom of a 500-type excavator.

8. The welding deformation prevention tooling for the boom of multiple types of excavators according to claim 7 is characterized in that: The second front fork positioning seat (22), the rear seat positioning shaft (36) located on the right side, the fishtail positioning notch (43) and the fishtail positioning shaft (44) located on the right side, the wheel hub positioning groove (45) and the wheel hub positioning sleeve (49) located on the right side are used in coordination to position and fix the boom of a 360-degree excavator.

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