An excavator frame assembly fixture

Abstract

This utility model discloses an excavator frame assembly fixture, including a base, a haptic positioning and guiding device, a slide rail fastening and positioning device, a frame base plate circular hole positioning device, a frame base plate support, a first side top bracket, a second side top bracket, a third side top bracket, a circular hole positioning bracket, a frame side channel steel conforming backing, and a fastening bracket. This fixture features high-precision welding positioning. The haptic positioning and guiding device ensures that the two haptic holes are on the same axis. The slide rail fastening and positioning device utilizes the sliding friction guide rail, which has low wear and high load-bearing capacity. A cylinder pushes the left and right side slide rail supports to achieve the positioning and clamping of the left and right side plates. The frame base plate circular hole positioning device achieves precise hole positioning of the excavator frame. The frame base plate support and side top brackets achieve one-click clamping and positioning, reducing adjustment time, ensuring the verticality and parallelism requirements of the excavator frame, and greatly improving welding efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical installation technology, specifically relating to an excavator frame assembly fixture. Background Technology

[0002] The current excavator frame assembly uses manual marking and positioning, which has poor accuracy. The workpiece (b) is not only heavy but also large, requiring significant handling and lifting effort, consuming substantial manpower and time. The large size of the workpiece also poses safety hazards during assembly, resulting in low safety standards and low assembly efficiency due to its reliance on single-product manufacturing. Traditional assembly processes involve borrowing numerous supports and multiple welding operations, which are prone to deformation after welding, affecting machining and failing to meet product requirements. Utility Model Content

[0003] Purpose of the utility model: In order to overcome the shortcomings of the existing technology, this utility model provides an excavator frame assembly fixture.

[0004] Technical solution: An excavator frame assembly fixture, which is used for welding, positioning and assembling the excavator frame. The excavator frame includes a frame base plate, a left connecting plate, a right connecting plate, a front connecting plate, a rear connecting plate, a first mortise hole, a second mortise hole, a first workpiece positioning hole and a second workpiece positioning hole.

[0005] The excavator frame assembly fixture includes a base, a positioning and guiding device, a slide rail fastening and positioning device, a frame bottom plate round hole positioning device, a frame bottom plate support, a first side top bracket, a second side top bracket, a third side top bracket, a round hole positioning bracket, a frame side channel steel conformal backing and a fastening bracket.

[0006] A slide rail fastening and positioning device is fixedly installed at the center of the front end of the base; the slide rail fastening and positioning device cooperates with the round hole positioning device of the chassis bottom plate to accurately position the front connecting plate.

[0007] A Huff positioning guide device is fixedly installed at the middle of the rear end of the base. The Huff positioning guide device accurately positions the first Huff hole and the second Huff hole. Slide rail fastening positioning devices are fixedly installed on the left and right sides of the Huff positioning guide device. The slide rail fastening positioning devices on both sides accurately position the first workpiece positioning hole and the second workpiece positioning hole, respectively.

[0008] The left end of the base is fixedly installed with a first side top bracket, a second side top bracket, and a frame side channel steel conforming backing. The first side top bracket, the second side top bracket, and the frame side channel steel conforming backing cooperate with each other to accurately position the left side connecting plate.

[0009] The right end of the base is fixedly installed with a round hole positioning bracket, a frame side channel steel contour backing, and a fastening bracket. The round hole positioning bracket, the frame side channel steel contour backing, and the fastening bracket work together to accurately position the right side connecting plate.

[0010] A third side top bracket is fixedly installed in the middle of the base, and the third side top bracket accurately positions the rear connecting plate.

[0011] The base has several frame base plate circular hole positioning devices, frame base plate supports and fastening brackets distributed on it. The frame base plate circular hole positioning devices, frame base plate supports and fastening brackets cooperate with each other to fix the frame base plate.

[0012] As an optimization: the base is used to support the excavator frame assembly fixtures and the excavator frame.

[0013] As an optimization: the positioning and guiding device includes a positioning guide seat, a positioning guide pin, and a handle. The positioning guide seat is fixedly installed with the positioning guide pin and the handle. The positioning guide pin passes through the first and second hafu holes by rotating the handle, thereby positioning the first and second hafu holes and ensuring that the first and second hafu holes are on the same axis.

[0014] As an optimization: the slide rail clamping and positioning device includes a slide rail cylinder, a slide rail, and a slide rail support base. The slide rail support base is installed on the slide rail, and the slide rail cylinder is connected to the slide rail support base. The slide rail cylinder causes the slide rail support base to move and adjust on the slide rail. The slide rail clamping and positioning device utilizes the characteristics of sliding friction guide rail, which has low wear and strong load-bearing capacity. The cylinder pushes the left and right slide rail support bases to achieve the purpose of positioning and clamping the left and right side plates.

[0015] As an optimization: the frame base plate circular hole positioning device includes a fixing plate, a gasket, a cylinder and a positioning pin. The fixing plate is provided with a gasket, and the cylinder is connected to the positioning pin. The positioning pin is moved up and down by the cylinder, which facilitates the installation and disassembly of the workpiece.

[0016] As an optimization: the chassis base plate support includes a base plate positioning block and a base plate support block, the base plate positioning block and the base plate support block are fixedly connected, and the base plate support block is provided with a base plate positioning hole, through which the chassis base plate is positioned.

[0017] As an optimization: the circular hole positioning bracket includes a circular hole positioning fixing block, a circular hole positioning post, and a circular hole positioning bolt. The circular hole positioning fixing block is fixedly connected to the circular hole positioning post, which has a circular hole. The circular hole positioning bolt passes through the circular hole and positions the circular hole in the excavator frame.

[0018] As an optimization: the frame side channel steel contouring backrest includes a contouring backrest base plate, a contouring backrest and a contouring backrest side plate. The contouring backrest base plate and the contouring backrest side plate are each provided with several round holes. The contouring backrest is fixed to the contouring backrest base plate and the contouring backrest side plate is fixed to the side of the contouring backrest.

[0019] As an optimization: the clamping bracket includes a clamping block, a rotatable pressure rod, and a clamping bolt. The top of the clamping block is equipped with a rotatable pressure rod, and the rotatable pressure rod is provided with a clamping bolt. The clamping bolt passes through the rotatable pressure rod and is used to clamp the excavator frame.

[0020] Beneficial effects: The excavator frame assembly fixture of this utility model has a high-precision welding positioning function. The Huff positioning guide device ensures that the two Huff holes are on the same axis. The sliding friction guide rail of the slide rail fastening positioning device has the characteristics of low wear and strong load bearing. The left and right side plate positioning clamping purpose is achieved by the cylinder pushing the left and right slide rail support seats. The hole positioning device of the frame bottom plate realizes the precise positioning of the hole position of the excavator frame. The frame bottom plate support, fastening bracket, side top bracket, round hole positioning bracket, and frame side channel steel contour backing realize the purpose of one-click clamping and positioning, reducing adjustment time, ensuring the verticality and parallelism requirements of the excavator frame, and greatly improving welding efficiency. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the excavator frame assembly fixture of this utility model. Figure 1 ;

[0022] Figure 2 This is a schematic diagram of the overall structure of the excavator frame assembly fixture of this utility model. Figure 2 ;

[0023] Figure 3 This is a schematic diagram of the overall structure of the excavator frame of this utility model;

[0024] Figure 4 This is a schematic diagram of the main structure of the excavator frame of this utility model;

[0025] Figure 5 This is a schematic diagram of the structure of the positioning and guiding device of this utility model;

[0026] Figure 6 This is a schematic diagram of the slide rail fastening and positioning device of this utility model;

[0027] Figure 7 This is a schematic diagram of the structure of the circular hole positioning device for the chassis bottom plate of this utility model;

[0028] Figure 8 This is a schematic diagram of the structure of the chassis base plate support of this utility model;

[0029] Figure 9 This is a schematic diagram of the structure of the first side top support of this utility model;

[0030] Figure 10 This is a schematic diagram of the structure of the second side top support of this utility model;

[0031] Figure 11 This is a structural schematic diagram of the third side top support of this utility model;

[0032] Figure 12 This is a schematic diagram of the circular hole positioning bracket of this utility model;

[0033] Figure 13 This is a schematic diagram of the structural design of the side channel steel of the vehicle frame of this utility model.

[0034] Figure 14 This is a structural schematic diagram of the fixing bracket of this utility model. Detailed Implementation

[0035] Example

[0036] like Figure 1-14 As shown, an excavator frame assembly fixture is used for welding, positioning, and assembling the excavator frame 1. Figure 3-4 As shown, the excavator frame 1 includes a frame base plate 11, a left connecting plate 12, a right connecting plate 13, a front connecting plate 14, a rear connecting plate 15, a first hafn hole 16, a second hafn hole 17, a first workpiece positioning hole 18, and a second workpiece positioning hole 19.

[0037] like Figure 1-2 As shown, the excavator frame assembly fixture includes a base 2, a positioning and guiding device 3, a slide rail fastening and positioning device 4, a frame bottom plate round hole positioning device 5, a frame bottom plate support 6, a first side top bracket 71, a second side top bracket 72, a third side top bracket 73, a round hole positioning bracket 8, a frame side channel steel conforming backing 9, and a fastening bracket 10.

[0038] In this embodiment, the base 2 is used to support the excavator frame assembly fixture and the excavator frame 1. A slide rail fastening positioning device 4 is fixedly installed at the center of the front end of the base 2; the slide rail fastening positioning device 4 cooperates with the frame base plate round hole positioning device 5 to accurately position the front connecting plate 14. A hafn positioning guide device 3 is fixedly installed at the center of the rear end of the base 2, which accurately positions the first hafn hole 16 and the second hafn hole 17; slide rail fastening positioning devices 4 are fixedly installed on the left and right sides of the hafn positioning guide device 3, which accurately positions the first workpiece positioning hole 18 and the second workpiece positioning hole 19, respectively. A first side top bracket 71, a second side top bracket 72, and a frame side channel steel contouring support 9 are fixedly installed at the left end of the base 2; the first side top bracket 71, the second side top bracket 72, and the frame side channel steel contouring support 9 cooperate to accurately position the left connecting plate 12. The right end of the base 2 is fixedly equipped with a round hole positioning bracket 8, a frame side channel steel conforming backing 9, and a fixing bracket 10. These components work together to precisely position the right-side connecting plate 13. A third side top bracket 73 is fixedly installed in the middle of the base 2, precisely positioning the rear connecting plate 15. The base 2 has several frame bottom plate round hole positioning devices 5, frame bottom plate supports 6, and fixing brackets 10 distributed on it. These components work together to fix the frame bottom plate 11.

[0039] like Figure 5 As shown, the positioning and guiding device 3 includes a positioning guide seat 31, a positioning guide pin 32, and a handle 33. The positioning guide seat 31 is fixedly mounted with the positioning guide pin 32 and the handle 33. The positioning guide pin 32 passes through the first Huff hole 16 and the second Huff hole 17 through the handle 33 to realize the positioning of the first Huff hole 16 and the second Huff hole 17, ensuring that the first Huff hole 16 and the second Huff hole 17 are located on the same axis.

[0040] like Figure 6 As shown, the slide rail clamping and positioning device 4 includes a slide rail cylinder 41, a slide rail 42, and a slide rail support 43. The slide rail support 43 is installed on the slide rail 42, and the slide rail cylinder 41 is connected to the slide rail support 43. The slide rail cylinder 41 moves and adjusts the slide rail support 43 on the slide rail 42. The slide rail clamping and positioning device 4 utilizes the characteristics of sliding friction guide rail, which has low wear and strong load-bearing capacity. The cylinder 41 pushes the left and right slide rail support 43 to achieve the purpose of positioning and clamping the left and right side plates.

[0041] like Figure 7As shown, the frame base plate round hole positioning device 5 includes a fixing plate 51, a gasket 52, a cylinder 53 and a positioning pin 54. The fixing plate 51 is provided with a gasket 52. The cylinder 53 is connected to the positioning pin 54. The positioning pin 54 is pushed up and down by the cylinder 53 to facilitate the installation and disassembly of the workpiece.

[0042] like Figure 8 As shown, the chassis base plate support 6 includes a base plate positioning block 61 and a base plate support block 62. The base plate positioning block 61 and the base plate support block 62 are fixedly connected. The base plate support block 62 is provided with a base plate positioning hole 63, through which the chassis base plate 11 is positioned.

[0043] like Figure 12 As shown, the circular hole positioning bracket 8 includes a circular hole positioning fixing block 81, a circular hole positioning post 82, and a circular hole positioning bolt 83. The circular hole positioning fixing block 81 is fixedly connected to the circular hole positioning post 82, which has a circular hole. The circular hole positioning bolt 83 passes through the circular hole and positions the circular hole in the excavator frame 1.

[0044] like Figure 13 As shown, the profiled support 9 of the side channel steel of the frame includes a profiled support base plate 91, a profiled support 92, and a profiled support side plate 93. The profiled support base plate 91 and the profiled support side plate 93 are each provided with several round holes. The profiled support 92 is fixed to the profiled support base plate 91, and the profiled support side plate 93 is fixed to the side of the profiled support 92.

[0045] like Figure 14 As shown, the clamping bracket 10 includes a clamping block 101, a rotatable pressure rod 102, and a clamping bolt 103. The top of the clamping block 101 is equipped with the rotatable pressure rod 102, and the rotatable pressure rod 102 is provided with the clamping bolt 103. The clamping bolt 103 passes through the rotatable pressure rod 102 and is used to clamp the excavator frame 1.

[0046] This utility model's excavator frame assembly fixture features high-precision welding positioning. A haptic positioning guide device ensures the two haptic holes are aligned on the same axis. A sliding friction guide rail with a sliding rail clamping device minimizes wear and provides high load-bearing capacity. A cylinder pushes the left and right side rail support seats to achieve positioning and clamping of the left and right side plates. A round hole positioning device on the frame base plate ensures precise hole positioning of the excavator frame. One-click clamping and positioning are achieved through frame base plate support, clamping brackets, side top brackets, round hole positioning brackets, and contoured support for the frame side channel steel. This reduces adjustment time, ensures the verticality and parallelism requirements of the excavator frame, and significantly improves welding efficiency.

[0047] The foregoing description clearly and completely illustrates the technical solutions in the embodiments of this utility model, enabling those skilled in the art to better understand the advantages and features of this utility model, thereby providing a clearer definition of the scope of protection of this utility model. The embodiments described in this utility model are merely some embodiments of this utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

Claims

1. An excavator frame assembly fixture, used for welding, positioning, and assembling an excavator frame (1), the excavator frame (1) comprising a frame base plate (11), a left side connecting plate (12), a right side connecting plate (13), a front end connecting plate (14), a rear end connecting plate (15), a first ferrule (16), a second ferrule (17), a first workpiece positioning hole (18), and a second workpiece positioning hole (19), characterized in that: The excavator frame assembly fixture includes a base (2), a positioning and guiding device (3), a slide rail fastening and positioning device (4), a frame bottom plate round hole positioning device (5), a frame bottom plate support (6), a first side top bracket (71), a second side top bracket (72), a third side top bracket (73), a round hole positioning bracket (8), a frame side channel steel conformal support (9), and a fastening bracket (10); The base (2) is fixedly installed with a slide rail fastening positioning device (4) at the front end center; the slide rail fastening positioning device (4) and the frame bottom plate round hole positioning device (5) cooperate with each other to accurately position the front connecting plate (14); A hafn positioning guide device (3) is fixedly installed at the middle of the rear end of the base (2). The hafn positioning guide device (3) accurately positions the first hafn hole (16) and the second hafn hole (17). Slide rail fastening positioning devices (4) are fixedly installed on the left and right sides of the hafn positioning guide device (3). The slide rail fastening positioning devices (4) on both sides accurately position the first workpiece positioning hole (18) and the second workpiece positioning hole (19) respectively. The base (2) is fixedly installed with a first side top bracket (71), a second side top bracket (72) and a frame side channel steel contour backing (9). The first side top bracket (71), the second side top bracket (72) and the frame side channel steel contour backing (9) cooperate with each other to accurately position the left side connecting plate (12). The right end of the base (2) is fixedly installed with a round hole positioning bracket (8), a frame side channel steel contour backing (9) and a fastening bracket (10). The round hole positioning bracket (8), the frame side channel steel contour backing (9) and the fastening bracket (10) cooperate with each other to accurately position the right side connecting plate (13). A third side top bracket (73) is fixedly installed in the middle of the base (2), and the third side top bracket (73) accurately positions the rear connecting plate (15); The base (2) is provided with a number of frame base plate round hole positioning devices (5), frame base plate supports (6) and fastening brackets (10). The frame base plate round hole positioning devices (5), frame base plate supports (6) and fastening brackets (10) cooperate with each other to fix the frame base plate (11).

2. The excavator frame assembly fixture according to claim 1, characterized in that: The base (2) is used to support the excavator frame assembly fixture and the excavator frame (1).

3. The excavator frame assembly tooling of claim 1, wherein: The positioning guide device (3) includes a positioning guide seat (31), a positioning guide pin (32), and a handle (33). The positioning guide seat (31) is fixedly installed with the positioning guide pin (32) and the handle (33). The positioning guide pin (32) passes through the first Huff hole (16) and the second Huff hole (17) through the handle (33) to realize the positioning of the first Huff hole (16) and the second Huff hole (17) and ensure that the first Huff hole (16) and the second Huff hole (17) are located on the same axis.

4. The excavator frame assembly tooling of claim 1, wherein: The slide rail fastening and positioning device (4) includes a slide rail cylinder (41), a slide rail (42) and a slide rail support (43). The slide rail support (43) is installed on the slide rail (42). The slide rail cylinder (41) is connected to the slide rail support (43). The slide rail cylinder (41) moves and adjusts the slide rail support (43) on the slide rail (42).

5. The excavator frame assembly tooling of claim 1, wherein: The frame base plate round hole positioning device (5) includes a fixing plate (51), a gasket (52), a cylinder (53) and a positioning pin (54). The fixing plate (51) is provided with a gasket (52). The cylinder (53) is connected to the positioning pin (54). The positioning pin (54) is pushed up and down by the cylinder (53).

6. The excavator frame assembly tooling of claim 1, wherein: The chassis base plate support (6) includes a base plate positioning block (61) and a base plate support block (62). The base plate positioning block (61) and the base plate support block (62) are fixedly connected. The base plate support block (62) has a base plate positioning hole (63) for positioning the chassis base plate (11) through the base plate positioning hole (63).

7. The excavator frame assembly tooling of claim 1, wherein: The circular hole positioning bracket (8) includes a circular hole positioning fixing block (81), a circular hole positioning column (82), and a circular hole positioning bolt (83). The circular hole positioning fixing block (81) is fixedly connected to the circular hole positioning column (82), which has a circular hole. The circular hole positioning bolt (83) passes through the circular hole and positions the circular hole in the excavator frame (1) through the circular hole positioning bolt (83).

8. The excavator frame assembly tooling of claim 1, wherein: The frame side channel steel contour backrest (9) includes a contour backrest base plate (91), a contour backrest (92), and a contour backrest side plate (93). The contour backrest base plate (91) and the contour backrest side plate (93) are each provided with several round holes. The contour backrest (92) is fixed on the contour backrest base plate (91), and the contour backrest side plate (93) is fixed on the side of the contour backrest (92).

9. The excavator frame assembly fixture according to claim 1, characterized in that: The clamping bracket (10) includes a clamping block (101), a rotatable pressure rod (102), and a clamping bolt (103). The top of the clamping block (101) is equipped with a rotatable pressure rod (102), and the rotatable pressure rod (102) is provided with a clamping bolt (103). The clamping bolt (103) passes through the rotatable pressure rod (102) and is used to clamp the excavator frame (1).

Images