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Concentric drilling tool hole-reaming sleeve component assembling tool and method

A technology for assembling tooling and assembling method, which is applied in the field of concentric drilling tool reaming sleeve assembly assembly tooling and its assembly, can solve the problems of inconvenient operation, easy occurrence of safety accidents, low precision of clearance control of reaming sleeve assemblies, etc. Long service life, convenient for industrial-scale production and use, and the effect of reducing equipment investment costs

Active Publication Date: 2021-02-19
长沙百通新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This assembly process needs to heat the pipe shoe and the reaming sleeve together. During the operation, it is inconvenient to transfer from the heating furnace to the mold, and it is prone to safety accidents. Moreover, the assembly process has a low precision of the clearance control of the reaming sleeve assembly.

Method used

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  • Concentric drilling tool hole-reaming sleeve component assembling tool and method
  • Concentric drilling tool hole-reaming sleeve component assembling tool and method
  • Concentric drilling tool hole-reaming sleeve component assembling tool and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] refer to Figure 1~4 , a concentric drilling tool reaming sleeve 6 component assembly tooling, including a connecting plate 2, an upper pressing die 3 and a reaming sleeve positioning ring 4, the connecting plate 2 is fixedly connected with the hydraulic cylinder 11 of the press 1; the upper The pressing die 3 is connected to the lower end surface of the connecting plate 2, and the inner surface of the lower end of the upper pressing die 3 is provided with a guiding tapered surface 32; , and the central axis of the upper pressing die 3 and the positioning ring 4 of the reaming sleeve coincides with the central axis of the hydraulic cylinder 11 to ensure that when the hydraulic cylinder 11 of the press 1 is pressed down, the pipe shoe 5 is pressed straight down along the central axis and set on the On the reaming sleeve 6.

[0036] The taper of the guide tapered surface 32 matches the tapered surface of the top outer surface of the pipe shoe 5 .

[0037] The length of ...

Embodiment 2

[0043] A concentric drilling tool reaming sleeve 6 component assembly method, using the concentric drilling tool reaming sleeve 6 component assembly tooling described in the above embodiment 1, the assembling method includes the following steps:

[0044] 1) Prepare assembly tooling: Align the center of the upper pressing die 3 and the center of the reaming sleeve positioning ring 4 with the hydraulic cylinder 11, and put the reaming sleeve 6 into the reaming sleeve positioning ring 4, so that the upper pressing die 3 and the expanding sleeve The central axis of the hole sleeve positioning ring 4 and the reaming sleeve 6 coincides with the central axis of the hydraulic cylinder 11, and then spray a release agent on the inner hole wall of the upper pressing mold 3;

[0045] 2) Heat treatment of the pipe shoe 5: place the pipe shoe 5 in a heating furnace and heat at 900°C for 20 minutes, so that the inner diameter (a) of the bottom of the pipe shoe 5 is 2mm larger than the outer d...

Embodiment 3

[0050] refer to Figure 5 , a concentric drilling tool reaming sleeve 6 component assembly tooling of this embodiment, compared with Embodiment 1, there are the following differences:

[0051] The inner surface of the bottom of the reaming sleeve locating ring 4 is provided with a ramp 41 that matches the conical surface at the bottom of the reaming sleeve 6. The contact area at the bottom of 6 is larger, and the force on the bottom of the reaming sleeve 6 is more uniform.

[0052] It should be noted that, in the assembly tooling of a concentric drilling tool reaming sleeve 6 assembly of the present invention, the length of the guide tapered surface 32 can also be 12mm, 18mm or 20mm, and the straight cylindrical surface of the upper pressing die 3 The height of 31 is 8mm or 12mm greater than the height of the pipe shoe 5; the changes of the above technical features can be understood and implemented by those skilled in the art through the text description, so no additional dra...

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Abstract

The invention discloses a concentric drilling tool hole-reaming sleeve component assembling tool and method. The assembling tool comprises a connecting plate, an upper pressing die and a hole-reamingsleeve positioning ring, and the connecting plate is fixedly connected with a hydraulic cylinder of a pressing machine; the upper pressing die is connected with the lower end face of the connecting plate, and a guiding conical face is arranged on the inner side face of the lower end of the upper pressing die; and the hole-reaming sleeve positioning ring is arranged on a pressing machine base located under the upper pressing die, the central axis of the upper pressing die and the central axis of the hole-reaming sleeve positioning ring coincide with the central axis of the hydraulic cylinder, and it is guaranteed that when the hydraulic cylinder of the pressing machine presses downwards, a pipe shoe is linearly pressed downwards along the central axis and arranged on the hole-reaming sleevein a sleeved mode. The concentric drilling tool hole-reaming sleeve component assembling tool is simple in structure and convenient to use, the machining process of all parts of the assembling tool is simple, the equipment investment cost is low, industrial large-scale production and use are facilitated, and assembled hole-reaming sleeve components are good in mechanical performance.

Description

technical field [0001] The invention relates to the assembly technology of reaming sleeve components, in particular to a reaming sleeve assembly assembly tool for a concentric drilling tool and an assembly method thereof. Background technique [0002] Concentric drilling tools are usually composed of a heel tube, a central drill bit, a reaming sleeve, a pipe shoe, and alloy teeth, among which the reaming sleeve is covered with alloy teeth to ream the hole; The pipes are connected; the alloy teeth are used to impact and break the rock formation, and the reaming sleeve is embedded in the pipe shoe to form a reaming sleeve assembly. [0003] CN105921630A discloses an assembly process of a reaming sleeve assembly of a concentric drilling tool. Firstly, the pipe shoe is processed into shape, the inner hole of the reaming sleeve is reserved, and the connecting part of the pipe shoe is set outside the connecting part of the reaming sleeve. Heat the pipe shoe and reaming sleeve tog...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D39/04
CPCB21D39/046
Inventor 贾立刚周斌杨跃飞唐汇德赵吉端王乐心
Owner 长沙百通新材料科技有限公司
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