Splicing point positioning device of loading machine box body

Abstract

The utility model belongs to the technical field of loader box welding, and particularly provides a loader box splicing point positioning device which comprises a tool bottom plate, a first jacking unit, a second jacking unit, a first pressing unit, a second pressing unit, a supporting unit and a positioning unit. The first jacking unit is arranged on the upper side of the tool bottom plate; the second jacking units are arranged on the two sides of the tool bottom plate. The first pressing unit is arranged on one side of the first jacking unit; the supporting unit is arranged between the second jacking units; the positioning unit is arranged on the lower side of the tool bottom plate. The second pressing unit is arranged on one side of the positioning unit. According to the utility model, through the mutual cooperation of the plurality of jacking units, the plurality of pressing units, the supporting unit and the positioning unit, the precise positioning of each part of a workpiece can be realized, the positioning precision is improved, and the subsequent working quality is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of loader box body welding, and particularly relates to a fitting point positioning device for a loader box body. Background Art

[0002] A loader is an earthwork construction machine widely used in construction projects such as highways, railways, and buildings, mainly used for shoveling bulk materials such as soil and sand and gravel. The loader box body is an important storage structure on the loader, and its rear end is connected to the trailer structure of the whole vehicle. Although the structure is simple, due to its important use site, its dimensional requirements are relatively high. Therefore, how to quickly improve the fitting point efficiency and ensure that the fitting point dimensions of the product meet the requirements has become the top priority in product development. Currently, the fitting point positioning and welding work of the loader box body is usually carried out step by step manually, with low efficiency and low precision, which has a certain impact on the use process.

[0003] To solve the problems existing in the prior art, those skilled in the art have made many efforts. For example, Chinese Patent Application CN116393902A proposes a fitting and welding positioning device for a loader hood, which respectively fixes the side plate, cross beam, and locking foot through the main body fixing device and the locking foot fixing device to complete the positioning between the side plate, cross beam, and locking foot parts for welding, ensuring the welding quality, but the positioning accuracy is somewhat lacking. Summary of the Utility Model

[0004] To solve the above problems, the utility model provides a fitting point positioning device for a loader box body, which can achieve precise positioning of each part of the workpiece through the mutual cooperation between multiple jacking units, multiple pressing units, a supporting unit, and a positioning unit, improving the positioning accuracy and ensuring the quality of subsequent work.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is a fitting point positioning device for a loader box body, including a tooling bottom plate, a first jacking unit, a second jacking unit, a first pressing unit, a second pressing unit, a supporting unit, and a positioning unit; the first jacking unit is arranged on the upper side of the tooling bottom plate; the second jacking unit is arranged on both sides of the tooling bottom plate; the first pressing unit is arranged on one side of the first jacking unit and is used to cooperate with the first jacking unit to ensure the position accuracy of the workpiece bottom plate; the supporting unit is arranged between the second jacking units and is used to cooperate with the second jacking units to ensure the position accuracy of the workpiece side plates; the positioning unit is arranged on the lower side of the tooling bottom plate; the second pressing unit is arranged on one side of the positioning unit and is used to cooperate with the positioning unit to ensure the position accuracy of the workpiece cross beam.

[0006] Further, the first pressing unit includes a column and a pressing plate; the column is fixed on the tooling base plate; the pressing plate is connected to the column through a rotating lead screw, and is used to apply a force to the pressing plate to achieve pressing and positioning.

[0007] Further, the first clamping unit is located on one side of the pressing plate and is fixed to the column through a connecting rod; the first clamping unit includes a first clamping head; the first clamping head is connected to the rotating lead screw and is used to push the first clamping head through the rotating lead screw to cooperate with the pressing plate to position the workpiece base plate.

[0008] Further, the second pressing unit includes a column and a pressing strip; the column is fixed on the tooling base plate; the pressing strip is arranged on one side of the column and is connected to the column through a rotating screw rod; the supporting unit includes a connecting column; second supporting heads are arranged at both ends of the connecting column; the supporting unit is located between the second pressing units on both sides; the pressing strip is pushed through the rotating screw rod and cooperates with the supporting unit to position the workpiece side plate.

[0009] Further, the positioning unit includes a plurality of limit columns and receiving columns; the receiving columns are fixed on the tooling base plate; the limit columns are arranged on one side of the receiving columns; the upper end of the receiving column is a receiving part for placing the workpiece cross beam.

[0010] Further, the second clamping unit is arranged on the other side of the receiving column and includes a base; the base is fixed on the tooling base plate; a rotating lead screw is arranged at the upper end of the base; one end of the rotating lead screw is connected with a second clamping head; by placing the workpiece cross beam on the receiving part and applying a lateral force through the rotating lead screw, the workpiece cross beam is positioned in cooperation with the limit columns.

[0011] Further, a flap positioning unit is arranged on the second pressing unit; the flap positioning unit includes a fixed seat, a cross arm and a curved arm; the fixed seat is fixed on two relatively arranged columns; the cross arm is fixed on the fixed seat; the curved arm is fixed on the cross arm; a pin column is arranged on one side of the end of the curved arm for positioning the flap.

[0012] Further, when the workpiece cross beam is placed vertically; the second clamping unit is arranged on one side along the length direction and one side along the width direction of the workpiece cross beam to ensure the positioning accuracy of the workpiece cross beam.

[0013] The technical solution of the present utility model has the beneficial effects that:

[0014] 1. The utility model realizes the positioning of the workpiece bottom plate through the cooperation of the first tightening unit and the first pressing unit, realizes the positioning of the workpiece side plate through the cooperation of the second tightening unit and the supporting unit, and realizes the positioning of the workpiece cross beam through the positioning unit and the second pressing unit. Precise positioning is achieved by simple limiting and sliding, and combined with the cooperation method of one tightening and one pressing, it can effectively reduce part deformation and improve the positioning accuracy of the workpiece.

[0015] 2. By increasing the number of each unit in the utility model and ensuring the parallelism, perpendicularity and spacing between the arrangements of each unit, while ensuring the positioning accuracy of each component of the workpiece, the relative positions between each component can be accurately guaranteed, so as to ensure the overall accuracy of the workpiece and facilitate subsequent assembly and welding work.

[0016] 3. In the utility model, each unit cooperates with each other by adjusting the position of the mechanism, with strong mobility, which provides convenience for the movement of the workpiece and can meet the use requirements under various working conditions and environments. Brief Description of the Drawings

[0017] In order to make the content of the utility model easier to be clearly understood, the following further detailed description of the utility model is made according to specific embodiments and in combination with the drawings.

[0018] Figure 1 It is a schematic structural diagram of the splicing point positioning device of the loader box body.

[0019] Figure 2 It is a schematic diagram of the positional relationship between the splicing point positioning device of the loader box body and the workpiece.

[0020] Figure 3 It is a schematic structural diagram of the first tightening unit.

[0021] Figure 4 It is a schematic structural diagram of the second pressing unit.

[0022] Figure 5 It is a schematic structural diagram of the supporting unit.

[0023] Wherein: 1 - the first tightening unit; 11 - the column; 12 - the tightening plate; 13 - the adjusting mechanism; 2 - the second tightening unit; 21 - the tightening bar; 3 - the first pressing unit; 31 - the connecting rod; 32 - the first pressing head; 4 - the supporting unit; 41 - the connecting column; 42 - the supporting head; 5 - the second pressing unit; 51 - the base; 52 - the second pressing head; 6 - the positioning unit; 61 - the receiving column; 611 - the receiving part; 62 - the limiting column; 7 - the flap positioning unit; 71 - the fixed seat; 72 - the cross arm; 73 - the curved arm; 731 - the pin column; 8 - the tooling bottom plate; 91 - the workpiece bottom plate; 92 - the workpiece side plate; 93 - the cross beam; 94 - the flap. Detailed Description of the Specific Embodiment

[0024] The technical solution of the present utility model will be further described below in conjunction with the accompanying drawings, but it is not limited thereto. Any modification or equivalent replacement of the technical solution of the present utility model without departing from the spirit and scope of the technical solution of the present utility model shall be covered by the protection scope of the present utility model.

[0025] As Figures 1-5 shown, the present utility model proposes a dotting and positioning device for a loader box body, which includes a tooling bottom plate 8, a first tightening unit 1, a second tightening unit 2, a first pressing unit 3, a second pressing unit 5, a supporting unit 4 and a positioning unit 6. Through the mutual cooperation between each unit, precise positioning and fixation of each component of the loader box body can be achieved, facilitating subsequent welding and assembly work.

[0026] Specifically, the number of the first tightening units 1 is two, and the two first tightening units 1 are arranged horizontally on the surface of the tooling bottom plate 8 near the upper edge; the first tightening unit 1 includes a column 11 and a tightening plate 12, and the column 11 is fixed to the tooling bottom plate 8 by bolts; the tightening plate 12 is erected on the lower side of the column 11 and is parallel to the column 11; the tightening plate 12 is in an "I" shape, and the upper and lower sides are respectively connected to the column 11 through telescopic rods, and the middle part is connected to the column 11 through a rotating lead screw. The movement of the tightening plate 12 downward or upward can be controlled through an adjusting mechanism 13, and the adjusting mechanism 13 can be a transmission structure such as a rotating lead screw and an adjusting screw rod, preferably a rotating lead screw. The number of the first pressing units 3 is also four, and two first pressing units 3 are arranged on the lower side of each tightening plate 12, and the two first pressing units 3 are respectively located on the upper and lower sides of the tightening plate 12. The first pressing unit 3 is composed of a rotating lead screw and a first pressing head 32 connected to the rotating lead screw, and is fixed to the column 11 through a connecting rod 31. One end of the connecting rod 31 is fixed to the column 11, and the other end is connected with a sleeve. A thread is provided in the sleeve and is connected to the rotating lead screw through the thread. By turning the rotating lead screw, the first pressing head 32 can be driven to move towards the first tightening unit 1, so as to cooperate with the movement of the tightening plate 12 to realize the positioning and fixing of the workpiece bottom plate 91; at the same time, through the synchronous operation of the two first tightening units 1, the positions of the workpieces on both sides can be ensured to be consistent, ensuring the assembly accuracy of the entire workpiece.

[0027] The number of the second pressing units 2 is four, which are arranged on the tooling base plate 8 in a two-row and two-column manner, and are located below the first pressing unit 1. The second pressing unit 2 includes a column 11 and a pressing strip 21. The column 11 is fixed to the tooling base plate 8 by bolts. The pressing strip 21 is strip-shaped and is arranged on the left or right side of the column 11. The upper and lower sides of the pressing strip 21 are connected to the column 11 through telescopic rods, and the middle part is connected to the column 11 through a rotating lead screw. The movement of the pressing strip 21 to the left or right can be controlled by the rotating lead screw. The number of the supporting units 4 is four, and they are all located between two columns 11 arranged in the horizontal direction. One supporting unit 4 is provided on the upper and lower sides of each pressing strip 21. The supporting unit 4 includes a connecting column 41, and supporting heads 42 are provided at both ends of the connecting column 41. The movement of the pressing strip 21 to the left or right can be controlled by the rotating lead screw, and the positioning and fixing of the workpiece side plate 92 can be realized in cooperation with the supporting unit 4, and at the same time, the distance between two workpiece side plates 92 can be controlled to ensure the overall assembly accuracy of the workpiece.

[0028] The positioning unit 6 is arranged on the tooling base plate 8 near the lower side edge, and includes a limiting column 62 and two receiving columns 61. The two receiving columns 61 are arranged horizontally on the tooling base plate 8. The limiting column 62 is fixed on the left side of the receiving column 61 and is on the same straight line as the receiving column 61. The limiting column 62 is fixed to the tooling base plate 8, and a limiting block is provided on the upper right side surface. The upper end of the receiving column 61 is provided with a receiving part 611, and the receiving part 611 is L-shaped and is used to receive the cross beam 93. A second pressing unit 5 is provided on the right side of the receiving column 61. The second pressing unit 5 includes a base, the base is fixed to the tooling base plate 8, a rotating lead screw is provided at the upper end of the base, and a second pressing head is connected to one end of the rotating lead screw. During use, the workpiece cross beam 93 is placed on the receiving column 61, and the left side of the cross beam 93 is abutted against the limiting block, and then the second pressing head is driven to move leftward by the rotating lead screw to form a pressing force on the cross beam 93, so as to realize the positioning and fixing of the cross beam 93.

[0029] Preferably, a flap positioning unit 7 is further provided on two second pressing units 2 near the lower side edge of the tooling base plate 8. The flap positioning unit 7 includes a fixed seat 71, a cross arm 72 and a curved arm 73. The fixed seat 71 is fixed on the upper surface of the column 11. The cross arm 72 is L-shaped, and its long side is connected to the fixed seat 71. The curved arm 73 is also L-shaped, and the lengths of its long side and short side are equal. The upper end of the curved arm 73 is fixed on the long side of the cross arm 72. A short plate extends leftward from the lower end of the curved arm 73, and a pin 731 is fixed on the short plate and is used to cooperate with the positioning hole on the flap 94 to realize the positioning of the flap 94.

[0030] Preferably, a positioning unit 6 for dealing with the vertical placement is further provided near the lower edge of the tooling bottom plate 8; wherein, the upper end of the receiving column 61 is changed from an L shape to a horizontal shape, and two second pressing units 5 are additionally provided on the lower side of the receiving column 61. The two second pressing units 5 are arranged in a straight line along the horizontal direction and are parallel to the straight line formed by the receiving column 61, so as to ensure the verticality of the cross beam 93 and ensure the positioning accuracy.

[0031] The above are only the embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present invention.

Claims

1. A positioning device for a loader housing, characterized in that: The tooling bottom plate (8) comprises a first clamping unit (1), a second clamping unit (2), a first pressing unit (3), a second pressing unit (5), a supporting unit (4) and a positioning unit (6); the first clamping unit (1) is arranged on the upper side of the tooling bottom plate (8); the second clamping unit (2) is arranged on both sides of the tooling bottom plate (8); the first pressing unit (3) is arranged on one side of the first clamping unit (1) and is used to cooperate with the first clamping unit (1) to ensure the position accuracy of the workpiece bottom plate (91); the supporting unit (4) is arranged between the second clamping units (2) and is used to cooperate with the second clamping unit (2) to ensure the position accuracy of the workpiece side plate (92); the positioning unit (6) is arranged on the lower side of the tooling bottom plate (8); the second clamping unit (5) is arranged on one side of the positioning unit (6) and is used to cooperate with the positioning unit (6) to ensure the position accuracy of the workpiece crossbeam (93).

2. The loader housing assembly point positioning device according to claim 1, characterized in that: The first tightening unit (1) comprises a column (11) and a tightening plate (12); the column (11) is fixed on the tooling base plate (8); the tightening plate (12) is connected to the column (11) via an adjustment mechanism (13) for applying force to the tightening plate (12) to achieve tightening positioning.

3. The assembly point positioning device for a loader housing according to claim 2, characterized in that: The first clamping unit (3) is located on one side of the clamping plate (12) and is fixed to the column (11) through a connecting rod (31); the first clamping unit (3) includes a first clamping head (32); the first clamping head (32) is connected to an adjusting mechanism (13) and is used to push the first clamping head (32) through the adjusting mechanism (13) to cooperate with the clamping plate (12) to realize the positioning of the workpiece bottom plate (91).

4. The assembly point positioning device for a loader housing according to claim 1, characterized in that: The second tightening unit (2) comprises a column (11) and a tightening strip (21); the column (11) is fixed on the tooling base plate (8); the tightening strip (21) is arranged on one side of the column (11) and is connected to the column (11) through an adjustment mechanism (13); the support unit (4) comprises a connecting column (41); support heads (42) are arranged at both ends of the connecting column (41); the support unit (4) is located between the second tightening units (2) on both sides; the tightening strip (21) is pushed by the adjustment mechanism (13) and cooperates with the support unit (4) to achieve positioning of the workpiece side plate (92).

5. The joint point positioning device of the loader box according to claim 1, characterized in that: The positioning unit (6) comprises a limiting column (62) and a plurality of receiving columns (61); the receiving column (61) is fixed on the tooling base plate (8); the limiting column (62) is arranged on one side of the receiving column (61); the upper end of the receiving column (61) is a receiving portion (611) for placing a workpiece crossbeam (93).

6. The joint point positioning device of the loader box according to claim 5, characterized in that: The second clamping unit (5) is arranged on the other side of the receiving column (61), and comprises a base; the base is fixed on the tooling base plate (8); an adjusting mechanism (13) is provided on the upper end of the base; one end of the adjusting mechanism (13) is connected to a second clamping head; by placing the workpiece beam (93) on the receiving portion (611), and applying lateral force through the adjusting mechanism (13), the workpiece beam (93) is positioned in cooperation with the limiting column (62).

7. The joint point positioning device of the loader box according to claim 4, characterized in that: The second tightening unit (2) is provided with a flap positioning unit (7); the flap positioning unit (7) comprises a fixing seat (71), a cross arm (72) and a curved arm (73); the fixing seat (71) is fixed on two oppositely arranged uprights (11); the cross arm (72) is fixed on the fixing seat (71); the curved arm (73) is fixed on the cross arm (72); a pin (731) is provided on one side of the end of the curved arm (73) for realizing the positioning of the flap (94).

8. The joint point positioning device of the loader box according to claim 6, characterized in that: When the workpiece crossbeam (93) is placed vertically, the second clamping unit (5) is provided on one side of the workpiece crossbeam (93) along the length direction and one side along the width direction, so as to ensure the positioning accuracy of the workpiece crossbeam (93).

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