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Tool for inlaying hemispherical head workpiece

A hemispherical head and workpiece technology, applied in the field of assembly fixtures, can solve problems such as inability to ensure installation accuracy, affect blood pump performance, and hidden dangers to patient safety, and achieve the effects of simple structure, impeller quality assurance, and product quality

Pending Publication Date: 2022-08-05
SHANGHAI DONGXIN BIOMEDICAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing technology cannot guarantee the installation accuracy when assembling the workpiece on the impeller, resulting in unqualified impeller, affecting the performance of the blood pump, and bringing safety hazards to patients

Method used

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  • Tool for inlaying hemispherical head workpiece
  • Tool for inlaying hemispherical head workpiece
  • Tool for inlaying hemispherical head workpiece

Examples

Experimental program
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Effect test

Embodiment Construction

[0030] A preferred embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

[0031] see figure 1 and figure 2 , The present invention provides a hemispherical head workpiece inlay tooling, which is used to inlay a workpiece 1 with a hemispherical head at one end and a cylinder at the other end into the installation groove 201 on one side of the impeller 2 .

[0032] see figure 1 In this embodiment, the impeller 2 includes a connecting seat and five blades 202 evenly distributed around the connecting seat, and the installation groove 201 is arranged on one side of the top of the connecting seat. The five blades 202 have the same structure, one end of each of them is connected to the connection seat, the other end of each of them is vertically upwardly extended, and an accommodation space is formed between the five blades 202 .

[0033] see Figure 3 to Figure 9 , the hemispherical head workpiece inlaying tooling in...

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Abstract

The invention discloses a hemispherical head workpiece inlaying tool which comprises a positioning base, a first embedding piece and a second embedding piece, the first embedding piece is vertically arranged above the positioning base, a positioning groove is formed in the end, facing the positioning base, of the first embedding piece in an inward concave mode, and the positioning groove is used for containing a workpiece; at least part of the cylinder of the workpiece is exposed out of the outer side, and the first embedded part is driven by an external pressure device to press the part, exposed out of the outer side, of the cylinder into the mounting groove; the second embedded part is arranged above the positioning base in the vertical direction, a spherical arc-shaped groove is formed in the end, facing the positioning base, of the second embedded part in an inwards-concave mode, the second embedded part is driven by an external pressure device to be used in cooperation with a hemispherical head of the workpiece through the spherical arc-shaped groove, and a cylinder of the workpiece is completely pressed into a mounting groove. And the hemispherical head of the workpiece is completely exposed outside. According to the tool for inlaying the hemispherical head workpiece, the installation of the hemispherical head workpiece is greatly facilitated, and the assembly precision can be ensured.

Description

technical field [0001] The invention relates to the technical field of assembling tooling fixtures, in particular to a tooling for inlaying a hemispherical head workpiece. Background technique [0002] Heart failure is the terminal stage of the development of various heart diseases, and surgery and drug treatment are difficult to achieve. In recent years, long-term implantation of a magnetic levitation centrifugal blood pump in vivo has become an effective means of treating heart failure. Magnetic levitation centrifugal blood pump is to fix the impeller on the rotor of the blood pump and magnetically levitate in the inner cavity of the blood pump. When the rotor rotates at a high speed, the blood flow is driven by the impeller to form arterial pressure, and the pressure depends on the speed of the impeller. . The magnetic levitation centrifugal blood pump adopts the magnetic levitation structure, which can solve the problems of wear, vibration, heat generation and hemolysi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B25B11/02
CPCB25B11/02
Inventor 张鹏彭远仪
Owner SHANGHAI DONGXIN BIOMEDICAL TECH CO LTD
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