Integrated machining tool for movable arm of small excavator

Abstract

The utility model discloses an integrated machining tool for a movable arm of a small excavator, which relates to the technical field of machining and production of movable arms of excavators and comprises a base, a front-end fixing seat, an adjusting mechanism, a front-end left-right adjusting seat, a middle-end left-right adjusting seat, a rear-end left-right adjusting seat, a rear-end fixing seat, an adjusting bolt, a front-end clamping part and a rear-end clamping part. Compared with a traditional small excavator movable arm machining mode, the small excavator movable arm centering and pressing device has the advantages of being convenient to use, high in stability and capable of achieving the purposes of rapidly centering and pressing a small excavator movable arm, and therefore the quality of formed products is guaranteed, machining precision is improved, and production efficiency is improved. During production, the whole movable arm of the small excavator is clamped by adopting the movable arm clamping device, so that the size position relationship among parts at all machining positions of the movable arm is effectively ensured, and the machining precision and the machining efficiency of the movable arm are improved.

Description

Technical Field

[0001] This utility model relates to the field of excavator boom processing and production technology, specifically to an integrated processing tooling for a small excavator boom. Background Technology

[0002] In the structure of mini excavators, the boom connects the body and the stick, and has a large span. Therefore, during operation, the entire boom is subjected to tensile and shear forces, making it susceptible to tearing. Consequently, high machining precision is required, and defects in sheet metal and machining dimensions are unacceptable. However, in existing technologies, due to the large product span and multiple machining holes in the boom, the coaxiality and parallelism machining precision are low, leading to overall assembly interference. This results in two main defects in excavator boom machining: poor parallelism of the machined holes and insufficient dimensional accuracy in the boom machining, directly affecting subsequent assembly and product use. Furthermore, traditional machining methods have low precision and low production efficiency, failing to ensure the quality of the finished product. Therefore, our company's technicians designed and manufactured machining fixtures for the boom. Summary of the Invention

[0003] The purpose of this utility model is to provide an integrated machining tooling for small excavator booms, in order to solve the problems mentioned in the background art, such as low precision, low production efficiency, low quality of finished products, and assembly interference in the traditional machining mode for the production and processing of small excavator booms.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an integrated machining fixture for a small excavator boom, comprising a base, the base including a base bottom plate horizontally arranged facing each other and a base top plate of the same specifications above it, and a rectangular arrangement of base support plates between the base bottom plate and the base top plate; on the top surface of the base, along its left and right center lines, from front to back, are arranged a front fixed seat, an adjustment mechanism, a front left and right adjustment seat, a middle left and right adjustment seat, a rear left and right adjustment seat, and a rear fixed seat; the front fixed seat includes two L-shaped front support seats, the two front support seats being arranged facing each other along the left and right center lines of the base, with the vertical portion located on the front side, and a front positioning post on the front side and a front threaded post on the rear side provided at their top ends, a front clamping bar being sleeved on the front threaded post and locked and fixed by a hexagonal nut; the adjustment mechanism... The system includes clamping studs and a spiral jack mounted on the front support base; the front left and right adjustment base includes two left and right adjustment plates aligned with the left and right center lines of the base and adjustment bolts mounted on them; the middle left and right adjustment base includes a middle base and two middle support plates aligned with the left and right center lines of the base on its top surface, adjustment bolts mounted on them, two set screw assemblies aligned with the left and right center lines of the base, and a middle positioning shaft; the rear left and right adjustment base includes two rear left and right adjustment plates aligned with the left and right center lines of the base and adjustment bolts mounted on them; the rear fixed base includes an L-shaped rear support base with its vertical portion located on the rear side and a rear positioning post and a front rear threaded stud mounted on the top. A rear clamping bar is fitted onto the rear threaded stud and locked in place by a hexagonal nut.

[0005] Preferably, a front positioning block is provided on the top surface of the base plate on the left side of the front support seat, a vertical front positioning shaft is provided at the center of the top surface of the front positioning block, and a front positioning plate is provided at the top of the front positioning shaft.

[0006] Preferably, the bottom surface of the front clamping bar is provided with a positioning groove that matches the front positioning post, and an arc-shaped downward bend is provided at the end away from the front positioning post, and a front clamping cylinder is provided at the end of the bend.

[0007] Preferably, the clamping studs are respectively disposed in the vertical portions of the front end support and the rear end support; the spiral jacks are respectively disposed on the top surfaces of the horizontal portions of the front end support and the rear end support.

[0008] Preferably, a rectangular groove is provided at the center of the top surface of the two front left and right adjustment uprights, and an adjustment bolt is provided through the bottom of the rectangular groove; a reinforcing inclined plate is provided between the outer side of the front left and right adjustment uprights and the top plate of the base.

[0009] Preferably, two intermediate support plates are provided with coaxial adjusting bolts near the top, and two reinforcing inclined plates are provided between the outer sides of the two intermediate support plates and the top surface of the intermediate base; two set screw assemblies are longitudinally arranged on the same straight line as the two intermediate support plates; the intermediate positioning shaft is located on the top surface of the intermediate base on the rear side of the left intermediate support plate.

[0010] Preferably, an adjusting bolt is provided through the center of the top surface of the two rear left and right adjusting uprights; a reinforcing inclined plate is provided between the outer side of the rear left and right adjusting uprights and the top plate of the base.

[0011] Preferably, a rear seat positioning block is provided on the top surface of the base top plate on the left side of the rear support seat, and a vertical rear seat positioning shaft is provided at the center of the top surface of the rear seat positioning block.

[0012] Preferably, the structure of the rear clamping bar is the same as that of the front clamping bar. The bottom surface of the rear clamping bar is provided with a positioning groove that matches the rear positioning post, and an arc-shaped downward bend is provided at the end away from the rear positioning post, and a rear clamping cylinder is provided at the end of the bend.

[0013] Furthermore, on the top surface of the base top plate, the rear side of the front left and right adjustment seat and the front side of the rear left and right adjustment seat are respectively provided with a front clamping part and a rear clamping part with the same structure; the front clamping part and the rear clamping part each include two vertical support screws symmetrically arranged with the left and right center lines of the base, and a clamping tube is provided on the upper part of the two support screws.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] Compared to the traditional processing mode of small excavator booms, the use of this utility model is convenient, highly stable, and can quickly align and clamp the small excavator boom, thereby ensuring the quality of the finished product while improving processing accuracy and increasing production efficiency. When using this utility model to clamp the entire boom of the small excavator boom during production, the dimensional positional relationship between the parts at each processing position of the boom is effectively guaranteed, thereby improving the processing accuracy and efficiency of the boom. Attached Figure Description

[0016] Figure 1 This is an isometric drawing of the present invention;

[0017] Figure 2 for Figure 1 Structural diagram;

[0018] Figure 3 for Figure 2 Main view;

[0019] Figure 4 for Figure 2 Top view;

[0020] In the diagram: Base-1, Base plate-11, Base top plate-12, Base support plate-13, Front fixed seat-2, Front support seat-21, Front positioning post-22, Front threaded post-23, Front clamping bar-24, Front positioning block-25, Front positioning shaft-26, Front positioning plate-27, Adjustment mechanism-3, Clamping stud-31, Spiral jack-32, Front left and right adjustment seat-4, Left and right adjustment plate-41, Rectangular groove-42, Reinforcing inclined plate-43, Middle left and right adjustment seat-5, Middle base-51, Middle support plate-52, Top screw assembly-53, Middle positioning shaft-54, Rear left and right adjustment seat-6, Rear left and right adjustment plate-61, Rear fixed seat-7, Rear support seat-71, Rear positioning post-72, Rear threaded post-73, Rear clamping bar-74, Rear seat positioning block-75, Rear seat positioning shaft-76. Adjusting bolt-8, front clamping part-9, support screw-91, clamping tube-92, rear clamping part-10. Detailed Implementation

[0021] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings and specific embodiments.

[0022] Please refer to Figure 1-4 , Figure 1 This is an isometric drawing of the present invention; Figure 2 for Figure 1 Structural diagram; Figure 3 for Figure 2 Main view; Figure 4 for Figure 2 Top view.

[0023] This utility model provides an integrated machining fixture for a small excavator boom, used for precise positioning machining during the assembly and production of a small excavator boom. It includes a base 1 for horizontal mounting reference of the entire fixture. On the top surface of the base 1, along its left and right center lines, from front to back, are sequentially arranged a front-end fixing seat 2 for positioning and fixing the front end of the small excavator boom, an adjusting mechanism 3 for adjusting the position of the front end of the small excavator boom, a front left-right adjusting seat 4 for left-right adjustment of the front end of the small excavator boom, a middle left-right adjusting seat 5 for left-right adjustment of the middle position of the small excavator boom, a rear left-right adjusting seat 6 for left-right adjustment of the rear end of the small excavator boom, and a rear-end fixing seat 7 for fixing the rear end of the small excavator boom. The front-end fixing seat 2, the front left-right adjusting seat 4, the middle left-right adjusting seat 5, and the rear left-right adjusting seat 6 are symmetrically arranged with respect to the left and right center lines of the base 1. The upper ends of the front left-right adjusting seat 4, the middle left-right adjusting seat 5, and the rear left-right adjusting seat 6 are all provided with threaded through holes and fitted with adjusting bolts 8.

[0024] The base 1 includes a base bottom plate 11 that is horizontally arranged with its upper and lower sides facing each other, and a base top plate 12 of the same specifications above it. A rectangular arrangement of base support plates 13 is provided between the base bottom plate 11 and the base top plate 12.

[0025] The front-end fixing seat 2 includes two L-shaped front-end support seats 21 arranged facing each other. The vertical part of the front-end support seat 21 is located on the front side, and a front-end positioning post 22 and a rear-end front-end threaded post 23 are provided at the top of the front-end support seat 21. A front-end clamping bar 24 is sleeved on the front-end threaded post 23 and locked and fixed by a hexagonal nut. A front-end positioning block 25 is provided on the top surface of the base top plate 12 on the left side of the left front-end support seat 21. A vertical front-end positioning shaft 26 is provided at the center of the top surface of the front-end positioning block 25. A front-end positioning plate 27 is provided at the top of the front-end positioning shaft 26.

[0026] The bottom surface of the front clamping bar 24 is provided with a positioning groove that matches the front positioning post 22, and an arc-shaped downward bend is provided at the end away from the front positioning post 22, and a front clamping cylinder is provided at the end of the bend.

[0027] The adjustment mechanism 3 includes a clamping stud 31 that runs through the front and rear of the vertical portion of the front support 21, and a spiral jack 32 that is provided on the top surface of the horizontal portion of the front support 21.

[0028] The front left and right adjustment seat 4 includes two front left and right adjustment uprights 41 arranged opposite each other. A rectangular groove 42 is provided at the center of the top surface of the front left and right adjustment uprights 41. An adjustment bolt 8 is provided through the bottom of the rectangular groove 42. A reinforcing inclined plate 43 is provided between the outer side of the front left and right adjustment uprights 41 and the top plate 12 of the base to ensure the structural strength of the front left and right adjustment seat 4.

[0029] The middle-end left and right adjustment seat 5 includes a middle-end base 51. Two middle-end support plates 52 facing each other are provided on the top surface of the middle-end base 51. Coaxial adjustment bolts 8 are provided through the two middle-end support plates 52 near the top. Two reinforcing inclined plates 43 are provided between the outer sides of the two middle-end support plates 52 and the top surface of the middle-end base 51. Two set screw assemblies 53 are evenly provided between the two middle-end support plates 52. A middle positioning shaft 54 ​​is provided on the top surface of the middle-end base 51 behind the middle-end support plate 52 on the left side.

[0030] The structure of the rear left and right adjustment seat 6 is the same as that of the front left and right adjustment seat 4, including two rear left and right adjustment uprights 61 arranged opposite each other, and an adjustment bolt 8 is provided through the center of the top surface of the rear left and right adjustment uprights 61; a reinforcing inclined plate 43 is provided between the outer side of the rear left and right adjustment uprights 61 and the top plate 12 of the base to ensure the structural strength of the rear left and right adjustment seat 6.

[0031] The rear end fixing seat 7 includes an L-shaped rear end support seat 71. The vertical part of the rear end support seat 71 is located on the rear side and has a rear end positioning post 72 and a front end threaded post 73 at its top. A rear end clamping bar 74 is sleeved on the rear end threaded post 73 and locked and fixed by a hexagonal nut. A rear seat positioning block 75 is provided on the top surface of the base top plate 12 on the left side of the rear end support seat 71. A vertical rear seat positioning shaft 76 is provided at the center of the top surface of the rear seat positioning block 75.

[0032] The structure of the rear clamping bar 74 is the same as that of the front clamping bar 24. The bottom surface of the rear clamping bar 74 is provided with a positioning groove that matches the rear positioning post 72, and an arc-shaped downward bend is provided at the end away from the rear positioning post 72, and a rear clamping cylinder is provided at the end of the bend.

[0033] The rear support base 71 is also provided with an adjustment mechanism 3, including a clamping stud 31 that runs through the front and rear of the vertical part of the rear support base 71, and a spiral jack 32 that is provided on the top surface of the horizontal part of the rear support base 71.

[0034] In addition, a front clamping part 9 and a rear clamping part 10 with the same structure are respectively provided on the rear side of the front left and right adjustment seat 4 and the front side of the rear left and right adjustment seat 6; the front clamping part 9 and the rear clamping part 10 each include two vertical support screws 91 symmetrically arranged with the left and right center lines of the base 1, and a clamping tube 92 is provided on the upper part of the two support screws 91.

[0035] Compared to the traditional processing mode of small excavator booms, the use of this utility model is convenient, highly stable, and can quickly align and clamp the small excavator boom, thereby ensuring the quality of the finished product while improving processing accuracy and increasing production efficiency. When using this utility model to clamp the entire boom of the small excavator boom during production, the dimensional positional relationship between the parts at each processing position of the boom is effectively guaranteed, thereby improving the processing accuracy and efficiency of the boom.

[0036] Although embodiments of the present invention have been shown and described, it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, it will be understood by those skilled in the art that all other embodiments obtained by making various changes, modifications, substitutions and alterations to these embodiments without departing from the principles and spirit of the present invention and without creative effort are within the scope of protection of the present invention.

Claims

1. A small excavator boom integrated machining fixture, comprising a base (1), wherein the base (1) comprises a base bottom plate (11) horizontally arranged facing each other and a base top plate (12) of the same specifications above it, and a rectangularly arranged base support upright plate (13) is provided between the base bottom plate (11) and the base top plate (12); characterized in that: On the top surface of the base (1), along its left and right center lines, from front to back, are arranged a front fixed seat (2), an adjustment mechanism (3), a front left and right adjustment seat (4), a middle left and right adjustment seat (5), a rear left and right adjustment seat (6), and a rear fixed seat (7); the front fixed seat (2) includes two L-shaped front support seats (21), which are arranged facing each other with the left and right center lines of the base (1) and the vertical part is arranged on the front side, with a front positioning post (22) on the front side and a front threaded post (23) on the rear side at the top. A front clamping bar (24) is sleeved on the front threaded post (23) and locked and fixed by a hexagonal nut; the adjustment mechanism (3) includes a clamping stud (31) and a spiral jack (32) arranged on the front support seat (21); the front left and right adjustment seat (4) includes two L-shaped front support seats (21) arranged facing each other with the left and right center lines of the base (1) The left and right adjustment plates (41) and the adjustment bolts (8) set on them are arranged; the middle left and right adjustment seat (5) includes a middle base (51) and two middle support plates (52) arranged on the top surface with the left and right center lines of the base (1) facing each other, and the adjustment bolts (8) set on them, two set screw assemblies (53) arranged with the left and right center lines of the base (1) facing each other, and a middle positioning shaft (54); the rear left and right adjustment seat (6) includes two rear left and right adjustment plates (61) arranged with the left and right center lines of the base (1) facing each other, and the adjustment bolts (8) set on them; the rear fixed seat (7) includes an L-shaped rear support seat (71) with its vertical part arranged on the rear side and a rear positioning post (72) and a front rear threaded post (73) set on the top. A rear clamping bar (74) is sleeved on the rear threaded post (73) and locked and fixed by a hexagonal nut.

2. The integrated machining tooling for a small excavator boom according to claim 1, characterized in that: A front positioning block (25) is provided on the top surface of the base plate (12) on the left side of the front support (21) on the left side. A vertical front positioning shaft (26) is provided at the center of the top surface of the front positioning block (25). A front positioning plate (27) is provided at the top of the front positioning shaft (26).

3. The integrated machining tooling for a small excavator boom according to claim 1, characterized in that: The bottom surface of the front clamping bar (24) is provided with a positioning groove that matches the front positioning post (22), and an arc-shaped downward bend is provided at the end away from the front positioning post (22), and a front clamping cylinder is provided at the end of the bend.

4. The integrated machining tooling for a small excavator boom according to claim 1, characterized in that: The clamping stud (31) is disposed in the vertical parts of the front support (21) and the rear support (71) respectively, and the spiral jack (32) is disposed on the top surface of the horizontal part of the front support (21) and the rear support (71) respectively.

5. The integrated machining tooling for a small excavator boom according to claim 1, characterized in that: A rectangular groove (42) is provided at the center of the top surface of the two front left and right adjustment plates (41), and an adjustment bolt (8) is provided through the bottom of the rectangular groove (42); a reinforcing inclined plate (43) is provided between the outer side of the front left and right adjustment plates (41) and the base top plate (12).

6. The integrated machining tooling for a small excavator boom according to claim 1, characterized in that: Two intermediate support plates (52) are provided with coaxial adjusting bolts (8) near the top. Two reinforcing inclined plates (43) are provided between the outer side of the two intermediate support plates (52) and the top surface of the intermediate base (51). Two set screw assemblies (53) and two intermediate support plates (52) are longitudinally arranged on the same straight line. The intermediate positioning shaft (54) is located on the top surface of the intermediate base (51) on the rear side of the intermediate support plate (52) on the left.

7. The integrated machining tooling for a small excavator boom according to claim 1, characterized in that: An adjusting bolt (8) is provided through the center of the top surface of the two rear left and right adjusting uprights (61); a reinforcing inclined plate (43) is provided between the outer side of the rear left and right adjusting uprights (61) and the top plate of the base (12).

8. The integrated machining tooling for a small excavator boom according to claim 1, characterized in that: The left side of the rear support base (71) is provided with a rear seat positioning block (75) on the top surface of the base top plate (12), and a vertical rear seat positioning shaft (76) is provided at the center of the top surface of the rear seat positioning block (75).

9. The integrated machining tooling for a small excavator boom according to claim 1, characterized in that: The structure of the rear clamping bar (74) is the same as that of the front clamping bar (24). The bottom surface of the rear clamping bar (74) is provided with a positioning groove that matches the rear positioning post (72), and an arc-shaped downward bend is provided at the end away from the rear positioning post (72), and a rear clamping cylinder is provided at the end of the bend.

10. The integrated machining tooling for a small excavator boom according to any one of claims 1-9, characterized in that: On the top surface of the base plate (12), the rear side of the front left and right adjustment seat (4) and the front side of the rear left and right adjustment seat (6) are respectively provided with a front clamping part (9) and a rear clamping part (10) with the same structure; the front clamping part (9) and the rear clamping part (10) each include two vertical support screws (91) symmetrically arranged with the left and right center lines of the base (1), and a clamping tube (92) is provided on the upper part of the two support screws (91).

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