Supporting device for tailor welding of swing arm and rocker arm seat beam of loading machine

Abstract

The invention discloses a supporting device for tailor welding of a rocker arm seat beam of a movable arm of a loading machine. The first positioning unit is mounted on the base assembly and is used for positioning and clamping a seat plate in the rocker arm seat beam; the cross beam sliding unit is arranged on the base assembly and is used for adjusting the relative position of a cross beam in the rocker arm seat beam and a seat plate; and the second positioning unit is mounted on the cross beam sliding unit and is used for positioning and clamping the cross beam. According to the invention, the tailor-welding positioning precision and the welding quality of the loading machine movable arm rocker arm seat beam are improved, meanwhile, the tailor-welding process of loading machine movable arm rocker arm seat beams of different models can be adapted, the production efficiency is improved, and the labor intensity of workers is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of loader welding tooling, and in particular relates to a supporting device for welding a rocker arm seat beam of a loader boom. Background Art

[0002] In the prior art, the loader boom rocker arm seat beam includes a cross beam, a seat plate, an unloading limit block base and a reinforcement plate, etc. For some models of loader boom rocker arm seat beams, the angle of the seat plate around the cross beam exceeds 180 degrees, which greatly increases the difficulty of positioning between the cross beam and the seat plate during the welding process. For this model of loader boom rocker arm seat beam, the seat plate and the cross beam cannot be directly overlapped, and the cross beam needs to be passed through the hole on the seat plate, which greatly increases the difficulty of the process. In addition, during the welding process of the rocker arm seat beam, the position accuracy of the seat plate assembly hole relative to the cross beam is required to be high. During the production process of the loader, the number of rocker arm seat beams is large, and they are batch products, requiring a set of welding tooling with a high degree of automation. Furthermore, due to the wide variety of products, there are as many as eight types of rocker arm seat beams. In summary, it is necessary to develop a welding tooling with a high degree of automation and a certain degree of versatility suitable for large-surround rocker arm seat beams, which is efficient and easy to operate. Summary of the invention

[0003] In order to solve the deficiencies in the prior art, the present invention provides a support device for the welding of the loader boom rocker arm seat beam, which improves the welding positioning accuracy and welding quality of the loader boom rocker arm seat beam. At the same time, it can adapt to the welding process of different models of loader boom rocker arm seat beams, thereby improving production efficiency and reducing the labor intensity of workers.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a support device for welding a loader boom rocker arm seat beam, comprising: a base assembly; a first positioning unit installed on the base assembly for positioning and clamping a seat plate in the rocker arm seat beam; a beam sliding unit installed on the base assembly for adjusting the relative position of the crossbeam and the seat plate in the rocker arm seat beam; and a second positioning unit installed on the beam sliding unit for positioning and clamping the crossbeam.

[0005] Furthermore, the base assembly includes: a base, a plurality of legs and a ball-head foot pad; one end of each of the legs is connected to the base, and the other end is connected to the ball-head foot pad.

[0006] Furthermore, the first positioning unit includes a seat plate assembly clamping unit and a seat plate main hole telescopic positioning unit installed on the base assembly; the seat plate assembly clamping unit includes: a cylinder bracket 2 installed on the base assembly, a tightening cylinder 2 installed on the cylinder bracket 2, and a pressure plate 2 installed on the output end of the tightening cylinder 2; the seat plate main hole telescopic positioning unit includes: a support installed on the base assembly, a cylinder installed on the support, and an automatic telescopic positioning assembly; the automatic telescopic positioning assembly includes: a guide sleeve installed on the support, a group of half-axes symmetrically arranged and slidably connected to the guide sleeve, an inclined block for driving the half-axes to move, and a positioning plate for limiting the movement distance of the half-axes, the half-axes having an inclined surface matching the inclined block; the inclined block is connected to the output end of the cylinder.

[0007] Furthermore, a support block for supporting the seat plate is also installed on the support.

[0008] Furthermore, it also includes a reinforcement plate positioning assembly, which includes: a positioning plate support installed on the second cylinder bracket; a reinforcement plate positioning plate installed on the positioning plate support and used for positioning the reinforcement plate between the crossbeam and the seat plate.

[0009] Furthermore, the beam sliding unit comprises: a panel for carrying the beam, a slider is installed on the bottom surface of the panel, and a guide rail matching the slider is installed on the base assembly.

[0010] Furthermore, the second positioning unit includes: a plurality of third positioning block assemblies installed on the panel for supporting the beam; a second positioning block installed on the panel for limiting the relative position of the beam and the panel; and a beam end clamping assembly installed on the panel for fixing the beam on the panel.

[0011] Furthermore, a plurality of first positioning holes are provided on the panel; a positioning block is provided on the base assembly, and a plurality of second positioning holes matching the first positioning holes are provided on the positioning block, and the first positioning holes are connected with the corresponding second positioning holes through positioning pins to lock the relative position of the crossbeam and the seat plate.

[0012] Furthermore, it also includes a beam clamping assembly and a first positioning block assembly arranged on the base assembly for fixing the beam, the beam clamping assembly including: a cylinder bracket installed on the base assembly, a tightening cylinder installed on the cylinder bracket, and a pressure plate installed on the output end of the tightening cylinder; the first positioning block assembly includes: a first positioning block installed on the base assembly; and an adjustment pad block slidably connected to the first positioning block for abutting against the beam.

[0013] Furthermore, it also includes a flap assembly, which includes: a flap support arranged on the base assembly; and a flap installed on the flap support and used to abut against the seat plate during welding.

[0014] Compared with the prior art, the present invention has the following beneficial effects: the present invention comprises a first positioning unit installed on the base assembly for positioning and clamping the seat plate in the rocker arm seat beam; a beam sliding unit installed on the base assembly (5) for adjusting the relative position of the crossbeam and the seat plate in the rocker arm seat beam; and a second positioning unit installed on the beam sliding unit for positioning and clamping the crossbeam; the welding positioning accuracy and welding quality of the loader boom rocker arm seat beam are improved, and at the same time, the welding process of the loader boom rocker arm seat beam of different models can be adapted, thereby improving production efficiency and reducing the labor intensity of workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of a support device for welding a rocker arm seat beam of a loading boom provided by an embodiment of the present invention; Figure 2 Schematic diagram of the structure of the rocker arm seat beam of the loader boom in an embodiment of the present invention, wherein (a) is an axonometric view and (b) is a plan view; Figure 3 yes Figure 1 , wherein (a) is the front view, and (b) is the left view of (a); Figure 4 yes Figure 1 A schematic diagram of the structure of the middle base assembly; Figure 5 yes Figure 1 Structural schematic diagram of the middle beam sliding unit; Figure 6 yes Figure 1 Structural schematic diagram of the middle crossbeam clamping assembly; Figure 7 yes Figure 1 A schematic diagram of the structure of the telescopic positioning unit of the main hole of the middle seat plate; Figure 8 yes Figure 7 A cross-sectional schematic diagram of the automatic telescopic positioning assembly, wherein (a) is a front view, and (b) is a top view of (a); Fig. 9 yes Figure 7 Schematic diagram of the structure of the middle support; Fig.10 yes Figure 1 A schematic diagram of the structure of the middle reinforcement plate positioning assembly; Fig.11 yes Figure 1 A schematic structural diagram of the first positioning block assembly; Fig.12 yes Figure 5 A schematic diagram of the structure of the third positioning block assembly; In the figure: 1, cross beam; 2, seat plate; 3, unloading limit block base; 4, reinforcement plate; 5, base assembly; 51, base; 52, support leg; 53, ball head foot pad; 6, reinforcement plate positioning assembly; 61, reinforcement plate positioning plate; 62, positioning plate support; 7, cross beam sliding unit; 71, guide rail; 72, second positioning block; 73, third positioning block assembly; 731, third positioning block; 732, adjustment pad one; 733, adjustment pad two; 734, adjusting pad three; 74, panel; 75, crossbeam end clamping assembly; 8, crossbeam clamping assembly; 81, top cylinder one; 82, cylinder bracket one; 83, pressure plate one; 9, flap assembly; 10, control assembly; 11, first positioning block assembly; 111, first positioning block; 112, adjusting pad four; 113, adjusting pad five; 114, adjusting pad six; 12, seat plate assembly clamping unit; 122, cylinder bracket two; 13. Telescopic positioning unit of the main hole of the seat plate; 131. Automatic telescopic positioning assembly; 1311. Half shaft; 1312. Oblique block; 1313. Positioning plate; 132. Support; 1321. Bottom plate; 1322. Vertical plate; 1323. Connecting plate; 1324. Reinforcement pad; 1325. Guide sleeve; 133. Cylinder; 134. Support block; 14. Positioning pin; 15. Positioning block. DETAILED DESCRIPTION

[0016] The present invention will be further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention.

[0017] like Figure 1 to Figure 12 As shown, a support device for welding a loader boom rocker arm seat beam comprises: a base assembly 5; a first positioning unit installed on the base assembly 5 for positioning and clamping a seat plate 2 in the rocker arm seat beam; a beam sliding unit 7 installed on the base assembly 5 for adjusting the relative position of a beam 1 and a seat plate 2 in the rocker arm seat beam; and a second positioning unit installed on the beam sliding unit 7 for positioning and clamping the beam 1.

[0018] like Figure 2 As shown, the rocker seat beam of the present invention comprises a cross beam (cross beam assembly) 1, a seat plate (seat plate assembly) 2, an unloading limit block base 3 arranged on the cross beam 1, and a reinforcing plate 4 arranged between the cross beam 1 and the seat plate 2. The angle of the seat plate 2 around the cross beam 1 is greater than 180°.

[0019] like Figure 4As shown, the base assembly 5 includes: a base 51, a plurality of legs 52 and a ball-head foot pad 53. One end of each leg 52 is connected to the base 51, and the other end is connected to the ball-head foot pad 53. The legs 52 are connected to the base 51 by bolts, and the ball-head foot pad 53 is connected to the legs 52 by threads.

[0020] The first positioning unit includes a seat plate assembly clamping unit 12 and a seat plate main hole telescopic positioning unit 13 installed on the base assembly 5 .

[0021] like Fig.10 As shown, the seat plate assembly clamping unit 12 includes: a cylinder bracket 122 installed on the base 51 by bolts, a tightening cylinder 12 installed on the cylinder bracket 122 by bolts, and a pressure plate 12 installed on the output end of the tightening cylinder 12 by bolts.

[0022] The seat plate assembly clamping unit 12 also includes a reinforcing plate positioning assembly 6, which includes: a positioning plate support 62 installed on the cylinder bracket 122 by bolts; and a reinforcing plate positioning plate 61 installed on the positioning plate support 62 for positioning the reinforcing plate 4 between the crossbeam 1 and the seat plate 2.

[0023] like Figure 7 , Figure 8 , Fig. 9 As shown, the seat plate main hole telescopic positioning unit 13 comprises: a support 132 mounted on the base 51, a cylinder 133 mounted on the support 132, a support block 134 and an automatic telescopic positioning assembly 131. The support block 134 is used to support the seat plate 2.

[0024] The automatic telescopic positioning assembly 131 includes: a guide sleeve 1325 installed on the support 132, a group of half shafts 1311 symmetrically arranged and slidably connected to the guide sleeve 1325, an inclined block 1312 for driving the half shaft 1311 to slide in the guide sleeve 1325, and a positioning plate 1313 for limiting the movement distance of the half shaft 1311. The half shaft 1311 has an inclined surface matching the inclined block 1312; the inclined block 1312 is connected to the output end of the cylinder 133.

[0025] The inclined block 1312 has a T-shaped structure, and the half shaft 1311 is provided with a T-shaped slot matching the T-shaped structure on the inclined block 1312. The positioning plate 1313 is installed on the guide sleeve 1325 by bolts. The cylinder 133 is connected to the inclined block 1312 by bolts.

[0026] The support 132 includes: a bottom plate 1321, two oppositely arranged vertical plates 1322 mounted on the bottom plate 1321, a reinforcing pad 1324 for mounting the support block 134 is arranged on the vertical plate 1322, and a connecting plate 1323 for mounting the cylinder 133 and a guide sleeve 1325 for mounting the half shaft 1311 are arranged between the two vertical plates 1322. The cylinder 133 is connected to the connecting plate 1323 by bolts.

[0027] like Figure 4 , Figure 5 As shown, the beam sliding unit 7 includes: a panel 74 for supporting the beam 1, a slider installed on the bottom surface of the panel 74 by bolts, and a guide rail 71 matching the slider installed on the base 51 by bolts.

[0028] like Figure 5 , Fig.12 As shown, the second positioning unit includes: a plurality of third positioning block assemblies 73 installed on the panel 74 by bolts for supporting the beam 1; a second positioning block 72 installed on the panel 74 by bolts for limiting the relative position of the beam 1 and the panel 74; and a beam end clamping assembly 75 installed on the panel 74 for fixing the beam 1 on the panel 74.

[0029] The beam end clamping assembly 75 is composed of a connecting plate, a clamping cylinder and a pressure plate. The pressure plate is mounted on the clamping cylinder. The clamping cylinder is mounted on the connecting plate by bolts. The connecting plate is mounted on the panel 74 by bolts.

[0030] The third positioning block assembly 73 is composed of a third positioning block 731 and a group of adjusting pads (including adjusting pad 1 732, adjusting pad 2 733, and adjusting pad 3 734). The third positioning block 731 is installed on the panel 74 by bolts, and the adjusting pad is connected to the third positioning block 731 by a T-slot. The adjusting pads are connected to each other by T-slots.

[0031] The panel 74 is provided with a plurality of first positioning holes ( Figure 1 A positioning hole A, a positioning hole B, and a positioning hole C are provided on the base 51; a positioning block 15 is provided on the positioning block 15 with a plurality of second positioning holes matching the first positioning holes; the first positioning holes are connected to the corresponding second positioning holes through positioning pins 14 to lock the relative positions of the cross beam 1 and the seat plate 2 ( Figure 1 The position of the positioning block 15 is only used for functional demonstration, and the actual installation position of the positioning block 15 is set according to needs).

[0032] like Figure 1 , Fig.11As shown, the first positioning block assembly 11 for fixing the beam 1 includes: a first positioning block 111 installed on the base 51 by bolts; and a group of adjustment pads (including adjustment pad four 112, adjustment pad five 113, and adjustment pad six 114) slidably connected to the first positioning block 111 and used to abut against the beam 1.

[0033] like Figure 1 , Fig.11 As shown, the beam clamping assembly 8 for fixing the beam 1 includes: a cylinder bracket 82 installed on the base 51 by bolts, a tightening cylinder 81 installed on the cylinder bracket 82, and a pressure plate 83 installed on the output end of the tightening cylinder 81.

[0034] like Figure 1 As shown, the flap assembly 9 includes: a flap support arranged on the base 51, and a flap installed on the flap support for abutting against the seat plate 2 during welding.

[0035] When in use, the control assembly 10 is operated to extend the cylinder 133 outward, driving the half shaft 1311 to extend in the left and right directions, and stop when encountering the positioning plate 1313. The seat plate 2 in the loader boom rocker seat beam to be welded is installed on the half shaft 1311, and the seat plate 2 falls into the support block 134. The control assembly 10 is operated, and the second pressing cylinder of the seat plate assembly clamping unit 12 drives the second pressing plate to extend and press the seat plate 2. The cross beam 1 in the loader boom rocker seat beam to be welded is placed on the cross beam sliding unit 7, so that the cross beam 1 falls on the third positioning block 731 (select the appropriate adjustment pad according to the specific model of the loader boom rocker seat beam to be welded), the front is close to the first positioning block 111 (select the appropriate adjustment pad according to the specific model of the loader boom rocker seat beam to be welded), and the left is close to the second positioning block 72. Push the crossbeam sliding unit 7 to move to the left along the guide rail. After reaching the corresponding position, the first positioning hole on the panel 74 coincides with the corresponding second positioning hole on the positioning block 15, and the positioning pin 14 is inserted. Turn over the flap in the flap assembly 9 so that the flap is close to the seat plate 2. Place the reinforcement plate 4 on the reinforcement plate positioning assembly 6 so that the bottom is close to the reinforcement plate positioning assembly 6, and the other two sides are close to the seat plate 2 and the crossbeam 1. Operate the control assembly 10 to drive the crossbeam clamping assembly 8 and the crossbeam end clamping assembly 75 to press the various parts of the loader boom rocker arm seat beam to be welded. Start the welding process. After the welding process is completed, operate the control assembly 10 to drive the crossbeam clamping assembly 8, the crossbeam end clamping assembly 75 and the seat plate assembly clamping unit 12 to retract the cylinders, release the clamping assemblies, and remove the welded loader boom rocker arm seat beam.

[0036] The present invention realizes the movable positioning of the main hole of the seat plate 2 by driving the half shaft 1311 to extend and retract back and forth by driving the cylinder. The cross beam 1 is inserted into the square holes of the two seat plates 2 placed side by side by the sliding assembly, and the clamping of each part is realized by driving the cylinder. The rocker arm seat beam is ensured to have accurate dimensions during the welding process, and the welding positioning accuracy and welding quality of the loader boom rocker arm seat beam are improved; the use of automated devices in the welding process improves the work efficiency.

[0037] The present invention sets the position of the positioning plate 1313 according to the specific model of the loader boom rocker arm seat beam, and can adapt to the positioning welding of a series of loader boom rocker arm seat beams of different models by loading, unloading and replacing different T-shaped adjustment pads in the first positioning block assembly 11 and the third positioning block assembly 73. The positioning of different models of rocker arm seat beams is achieved. The production efficiency is improved through automatic control technology.

[0038] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A support device for welding the rocker arm seat beam of a loading boom, characterized in that: include: Base assembly (5); A first positioning unit mounted on the base assembly (5) and used for positioning and clamping the seat plate (2) in the rocker seat beam; A crossbeam sliding unit (7) mounted on the base assembly (5) and used for adjusting the relative position of the crossbeam (1) and the seat plate (2) in the rocker seat beam; A second positioning unit installed on the crossbeam sliding unit (7) and used for positioning and clamping the crossbeam (1).

2. The supporting device for welding the rocker arm seat beam of a loader boom according to claim 1 is characterized in that: The base assembly (5) comprises: a base (51), a plurality of legs (52) and a ball-head foot pad (53); one end of each leg (52) is connected to the base (51), and the other end is connected to the ball-head foot pad (53).

3. The supporting device for welding the rocker arm seat beam of a loader boom according to claim 1, characterized in that: The first positioning unit comprises a seat plate assembly clamping unit (12) and a seat plate main hole telescopic positioning unit (13) mounted on the base assembly (5); The seat plate assembly clamping unit (12) comprises: a second cylinder bracket (122) mounted on the base assembly (5), a second tightening cylinder mounted on the second cylinder bracket (122), and a second pressing plate mounted on the output end of the second tightening cylinder; The seat plate main hole telescopic positioning unit (13) comprises: a support (132) mounted on the base assembly (5), a cylinder (133) mounted on the support (132), and an automatic telescopic positioning assembly (131); The automatic telescopic positioning assembly (131) comprises: a guide sleeve (1325) mounted on the support (132), a group of semi-axles (1311) symmetrically arranged and slidably connected to the guide sleeve (1325), an inclined block (1312) for driving the semi-axles (1311) to move, and a positioning plate (1313) for limiting the movement distance of the semi-axles (1311); the semi-axles (1311) have an inclined surface matching the inclined block (1312); and the inclined block (1312) is connected to the output end of the cylinder (133).

4. The support device for welding the rocker arm seat beam of a loader boom according to claim 3, characterized in that: A support block (134) for supporting the seat plate (2) is also mounted on the support (132).

5. The supporting device for welding the rocker arm seat beam of a loader boom according to claim 3, characterized in that: It also includes a reinforcing plate positioning assembly (6), the reinforcing plate positioning assembly (6) comprising: A positioning plate support (62) mounted on the second cylinder support (122); A reinforcing plate positioning plate (61) mounted on the positioning plate support (62) and used for positioning the reinforcing plate (4) between the crossbeam (1) and the seat plate (2).

6. The supporting device for welding the rocker arm seat beam of a loader boom according to claim 1, characterized in that: The crossbeam sliding unit (7) comprises: a panel (74) for carrying the crossbeam (1), a slider being installed on the bottom surface of the panel (74), and a guide rail (71) matching the slider being installed on the base assembly (5).

7. The supporting device for welding the rocker arm seat beam of a loader boom according to claim 6, characterized in that: The second positioning unit comprises: A plurality of third positioning block assemblies (73) mounted on the panel (74) and used to support the crossbeam (1); A second positioning block (72) mounted on the panel (74) and used to define the relative position of the crossbeam (1) and the panel (74); A crossbeam end clamping assembly (75) mounted on the panel (74) and used for fixing the crossbeam (1) on the panel (74).

8. The support device for welding the rocker arm seat beam of a loader boom according to claim 6, characterized in that: The panel (74) is provided with a plurality of first positioning holes; the base assembly (5) is provided with a positioning block (15), the positioning block (15) is provided with a plurality of second positioning holes matching the first positioning holes, the first positioning holes being connected to the corresponding second positioning holes via positioning pins (14) for locking the relative positions of the crossbeam (1) and the seat plate (2).

9. The supporting device for welding the rocker arm seat beam of a loader boom according to claim 1, characterized in that: It also includes a crossbeam clamping assembly (8) and a first positioning block assembly (11) arranged on the base assembly (5) and used to fix the crossbeam (1). The crossbeam clamping assembly (8) comprises: a cylinder bracket (82) mounted on the base assembly (5), a tightening cylinder (81) mounted on the cylinder bracket (82), and a pressure plate (83) mounted on the output end of the tightening cylinder (81); The first positioning block assembly (11) comprises: a first positioning block (111) mounted on the base assembly (5); Slidingly connected to the first positioning block (111), and used to abut against an adjustment pad on the crossbeam (1).

10. The supporting device for welding the rocker arm seat beam of a loader boom according to claim 1, characterized in that: It also includes a flap assembly (9), the flap assembly (9) comprising: A flap support provided on the base assembly (5); The flap is mounted on the flap support and is used to abut against the flap on the seat plate (2) during welding.

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