An auxiliary assembly tool for correcting the verticality and deflection of the core under the main body core

Abstract

The present invention discloses an auxiliary assembly tool for correcting the verticality and deflection of the lower core of the main body core, comprising a gantry, two positioning inclined seats bent inwardly are arranged on both sides of the bottom of the gantry, the inner side of the positioning inclined seats is provided with a positioning inclined surface arranged inwardly, wear-resistant blocks are arranged at both ends of the positioning inclined surface, and a detection needle is provided on the top of the gantry, and a detection end face is provided at one end of the detection needle. The auxiliary assembly tool for correcting the verticality and deflection of the lower core of the main body core of the present invention belongs to the technical field of engine sand core assembly, can quickly detect whether the main body core is accurately installed, can better ensure the quality of the core assembly, is simple and convenient to operate, does not require high skills, and has low requirements on the ability and experience of the operator. It is convenient and fast to correct the main body core, and the efficiency of core assembly is greatly improved.

Description

Technical Field

[0001] The invention relates to an engine sand core assembly technology, and more specifically, to an auxiliary assembly tool for correcting the verticality and deflection of a core under a main body core. Background Art

[0002] In the process of core assembly of the machine body sand core, assembling the main core is a very important step. The quality of the main core assembly directly affects the appearance quality of the casting. When assembling the main core, since the main core overhangs too high, only the two cylinder holes at the bottom can be positioned, so it is not easy to assemble the main core straight during assembly. It is easy to tilt forward and backward, causing it to be non-perpendicular to the lower appearance, and it is easy to twist, causing a certain deflection from the lower appearance. Since the six main cores are strung together and tightened by the core assembly screw after assembly, the assembly error of a single main core will accumulate to the assembly of all the main cores, so it is necessary to ensure the assembly quality when assembling each main core, and ensure that each main core assembly must be perpendicular to the lower appearance.

[0003] As for how to ensure the assembly accuracy of the main core, the existing methods are visual method and plumb line alignment method. The visual method mainly relies on visual inspection from multiple directions to comprehensively judge whether the main core is installed correctly. For example, after multiple main cores are installed, check whether their edges are aligned. The plumb line alignment method requires the use of a plumb line to fit the head surface of the main core to determine whether the main core is assembled vertically.

[0004] The disadvantages of the existing technical solutions are: (1) Most of the existing practices rely on visual inspection to roughly judge whether the assembly is in place. There is no standard assembly specification and no quality assurance. The higher the overhang and the larger the size of the main core, the greater the error caused by visual inspection, and the assembler needs to have higher ability and experience requirements; (2) Some main core assemblies also use the plumb line straightening method, but the reference of the plumb line is not the reference of the lower outer shape. If the position of the lower outer shape is not flat enough, for example, the lower outer shape is placed on a slope with a slight slope, these errors will be transferred to the assembly of the main core; (3) The plumb line straightening method cannot adjust the rotation deviation of the main core, but can only correct the vertical deviation; (4) The plumb line straightening method is only applicable to the case where the core head surface of the main core is relatively long. If the core head surface is relatively short, there is no way to magnify the slight deviation, and it is more troublesome to observe; (5) Various methods have relatively high requirements for operation and skills of the operator, and they must be well trained to operate. Summary of the invention

[0005] The technical problem to be solved by the present invention is to address the above-mentioned deficiencies in the prior art. The purpose of the present invention is to provide an auxiliary assembly tool for correcting the verticality and deflection of the lower core of the main core, which can quickly detect whether the main core is installed accurately, can better ensure the quality of the core assembly, is easy and convenient to operate, does not require high skills, has low requirements on the operator's ability and experience, is convenient and quick to correct the main core, and greatly improves the efficiency of core assembly.

[0006] To achieve the above-mentioned purpose, the present invention provides an auxiliary assembly tool for correcting the verticality and deflection of the lower core of the main core, including a gantry, two inwardly bent positioning seats are provided on both sides of the bottom of the gantry, and the inner side of the positioning seat is provided with an inwardly inclined positioning inclined surface, wear-resistant blocks are provided at both ends of the positioning inclined surface, and a detection needle is provided on the top of the gantry, and a detection end face is provided at one end of the detection needle.

[0007] Furthermore, a dial indicator arranged transversely is provided on one side of the needle detector.

[0008] Furthermore, the measuring head of the dial indicator is arranged to protrude from the detection end surface of the detection needle.

[0009] Furthermore, the needle detector includes a positioning boss provided on the top of the gantry, a vertically arranged upright plate is provided on the positioning boss, and the detection end surface is provided at the end of the upright plate.

[0010] Furthermore, a pipe clamp connected to the sleeve of the dial indicator is provided on one side of the top of the vertical plate.

[0011] Furthermore, reinforcing ribs connected to the positioning bosses are provided on both sides of the bottom of the vertical plate.

[0012] Furthermore, the inclination angle of the positioning slope is 45°.

[0013] Beneficial Effects

[0014] Compared with the prior art, the beneficial effects of the auxiliary assembly tool for correcting the verticality and deflection of the lower core of the main core of the present invention are as follows: in the auxiliary assembly tool for correcting the verticality and deflection of the lower core of the main core of the present invention, it can quickly detect whether the main core is installed accurately, and can better ensure the quality of the core assembly. The operation is simple and convenient, and does not require high skills. The requirements on the operator's ability and experience are low. The correction of the main core is convenient and fast, and the efficiency of core assembly is greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural stereogram of the auxiliary assembly tool for correcting the verticality and deflection of the lower core of the main body core of the present invention;

[0016] Figure 2It is a correction schematic diagram of the auxiliary assembly tool for correcting the verticality and deflection of the lower core of the main body core of the present invention;

[0017] Figure 3 It is an enlarged schematic diagram of the structure of the combination of the needle detector and the dial indicator in the present invention.

[0018] In the figure: 1. gantry; 2. positioning inclined seat; 3. positioning inclined surface; 4. wear-resistant block; 5. detection needle; 6. detection end surface; 7. dial indicator; 8. positioning boss; 9. vertical plate; 10. pipe clamp; 11. strengthening rib plate; 12. lower outer box; 13. main body core. DETAILED DESCRIPTION

[0019] The specific implementation modes of the present invention are described in detail below in conjunction with the accompanying drawings, but it should be understood that the protection scope of the present invention is not limited by the specific implementation modes.

[0020] The specific implementation of the present invention is as follows: Figure 1-3 As shown, an auxiliary assembly tool for correcting the verticality and deflection of the lower core of the main body core comprises a gantry 1, two sides of the bottom of the gantry 1 are provided with two inwardly bent positioning seats 2, the inner side of the positioning seat 2 is provided with an inwardly inclined positioning inclined surface 3, both ends of the positioning inclined surface 3 are provided with wear-resistant blocks 4, the top of the gantry 1 is provided with a detection needle 5, and one end of the detection needle 5 is provided with a detection end surface 6; in the auxiliary assembly tool for correcting the verticality and deflection of the lower core of the main body core, the gantry 1 is placed on the lower outer box, and the gantry The positioning inclined seat 2 at the bottom of the frame 1 is positioned with the two inclined surfaces on both sides of the lower outer box 12 to keep the gantry 1 vertical, and then the gantry 1 is moved to make the detection end face 6 of the detection needle 5 close to the end face of the main body core in the lower outer box 12. By observing whether the detection end face 6 is completely flush with the end face of the main body core, it can be judged whether the main body core is assembled in place. The positioning inclined seat 2 of the auxiliary assembly tool uses the two inclined surfaces on both sides of the lower outer box 12 as a reference, and the detection needle 5 at the upper end is used to detect the assembly accuracy of the main body core 13.

[0021] By using the auxiliary assembly tool for correcting the verticality and deflection of the lower core of the main core to perform core assembly work, it is possible to quickly detect whether the main core 13 is installed accurately, which can better ensure the quality of the core assembly. The operation is simple and convenient, does not require high skills, and has low requirements on the operator's ability and experience. The correction of the main core is convenient and fast, and the efficiency of core assembly is greatly improved.

[0022] In this embodiment, a laterally arranged dial indicator 7 is provided on one side of the detection needle 5, and the measuring head of the dial indicator 7 is protruding from the detection end face 6 of the detection needle 5. When the detection needle 5 is close to the end face of the main body core 13, the measuring head of the dial indicator 7 abuts against the end face of the main body core 13. At this time, by observing whether the reading of the dial indicator 7 is zero, it can be judged whether the main body core 13 is tilted. The reading can be used to quickly judge whether the main body core 13 is installed in place, and the judgment is fast and the operation is simple.

[0023] In this embodiment, the needle detector 5 includes a positioning boss 8 provided on the top of the gantry 1 , a vertical plate 9 is provided on the positioning boss 8 , and the detection end surface 6 is provided at the end of the vertical plate 9 .

[0024] In this embodiment, a pipe clamp 10 connected to the sleeve of the dial indicator 7 is provided on one side of the top of the vertical plate 9 , and the dial indicator 7 is fixed to the vertical plate 9 through the pipe clamp 10 .

[0025] In this embodiment, reinforcing ribs 11 connected to the positioning boss 8 are provided on both sides of the bottom of the vertical plate 9, and the reinforcing ribs 11 are welded to the vertical plate 9, and then the reinforcing ribs 11 and the vertical plate 9 are fixed to the positioning boss 8 by welding.

[0026] In this embodiment, the inclination angle of the positioning slope 3 is 45°, the engine cylinder is a V-shaped cylinder, the angle between the two slopes on both sides of the lower outer box 12 is 90°, and then the angle between the two positioning slopes 3 at the bottom of the gantry 1 is 90°.

[0027] In this auxiliary assembly tool, a wear-resistant block 4 is arranged on the positioning inclined seat 2 at the bottom of the gantry 1, and positioning is performed through the wear-resistant block 4 and the two inclined surfaces on both sides of the lower outer box 12, which has good wear resistance and prevents the gantry 1 from tilting due to wear.

[0028] The above are only preferred embodiments of the present invention. It should be pointed out that for those skilled in the art, several modifications and improvements can be made without departing from the structure of the present invention, which will not affect the effect of the implementation of the present invention and the practicality of the patent.

Claims

1. An auxiliary assembly tool for correcting the verticality and deflection of the lower core of the main body core, comprising a gantry (1), characterized in that: A positioning inclined seat (2) bent inwardly is provided on each of the two sides of the bottom of the gantry (1); a positioning inclined surface (3) arranged inwardly tilted is provided on the inner side of the positioning inclined seat (2); wear-resistant blocks (4) are provided at both ends of the positioning inclined surface (3); a detection needle (5) is provided on the top of the gantry (1); a detection end surface (6) is provided at one end of the detection needle (5); a dial indicator (7) arranged transversely is provided on one side of the detection needle (5); a measuring head of the dial indicator (7) is arranged protruding from the detection end surface (6) of the detection needle (5); the detection needle (5) includes a positioning boss (8) provided on the top of the gantry (1); a vertical plate (9) is provided on the positioning boss (8); the detection end surface (6) is arranged on the vertical plate (9) The end of the vertical plate (9) is provided with reinforcing ribs (11) connected to the positioning bosses (8) on both sides of the bottom of the vertical plate (9). The gantry (1) is placed on the lower outer box. The positioning inclined seat (2) at the bottom of the gantry (1) is positioned with the two inclined surfaces on both sides of the lower outer box so that the gantry (1) remains vertical. Then the gantry (1) is moved so that the detection end face (6) of the detection needle (5) is close to the end face of the main body core (13) in the lower outer box. When the detection needle (5) is close to the end face of the main body core (13), the measuring head of the dial indicator (7) abuts against the end face of the main body core (13). At this time, the reading of the dial indicator (7) is observed to be zero to determine whether the main body core (13) is tilted, and the reading is used to determine whether the main body core (13) is installed in place.

2. An auxiliary assembly tool for correcting the verticality and deflection of the lower core of the main body core according to claim 1, characterized in that: The inclination angle of the positioning inclined surface (3) is 45°.

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