A quick-change fixture for pump body machining based on magnetic coupling and directional chip removal

By using a quick-change fixture for pump body machining with magnetic coupling and directional chip removal, the problems of low changeover efficiency and contamination affecting accuracy of traditional fixtures are solved, enabling rapid changeover and high-precision machining of pump bodies.

CN224274137UActive Publication Date: 2026-05-26SHUANGLONG PUMP IND (DALIAN) CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHUANGLONG PUMP IND (DALIAN) CO LTD
Filing Date
2025-06-24
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Traditional pump body machining fixtures have low changeover efficiency, and machining contamination leads to deterioration of precision, affecting clamping stability and accuracy.

Method used

The pump body is machined using a quick-change fixture with magnetic coupling and directional chip removal. The pump body is quickly clamped and positioned using a magnetic unit and neodymium iron boron permanent magnets. The waste chips are efficiently discharged through right-hand and left-hand spiral channels, and a zirconia ceramic bushing is used to prevent metal adhesion.

Benefits of technology

This achievement represents a breakthrough in both rapid pump body changeover and improved machining cleanliness, thereby enhancing clamping stability and machining accuracy.

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Abstract

This invention provides a quick-change fixture for pump body processing based on magnetic coupling and directional chip removal, belonging to the field of machining fixture technology. It includes a support mechanism comprising a base plate and two side plates fixedly mounted on the top of the base plate; an integrated mechanism including an adsorption component to prevent impurity adsorption, a chip removal component for chip removal, and an anti-fouling component sleeved on the surface of the adsorption component. The adsorption component includes several magnet units disposed on the surface of the base plate, a lower clamping plate disposed above the base plate, an upper clamping plate fixedly mounted on the top of the lower clamping plate for clamping the pump body, and a neodymium iron boron permanent magnet disposed at the bottom of the lower clamping plate. The adsorption component also includes a limiting block fixedly mounted on the surface of the upper clamping plate, and a spring fixedly mounted between the limiting block and the base plate. This invention, through the cooperation between the adsorption component and the chip removal component, can clamp and position the pump body and achieve chip removal, realizing a dual breakthrough in quick changeover and processing cleanliness.
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Description

Technical Field

[0001] This utility model belongs to the field of machining fixture technology, specifically relating to a quick-change fixture for pump body machining based on magnetic coupling and directional chip removal. Background Technology

[0002] Pump body machining refers to the process of shaping metal or non-metal blanks into pump body parts that meet design requirements through mechanical processing. It mainly includes turning, milling, drilling, boring, and tapping processes to ensure that the dimensional accuracy, form and position tolerances, and surface quality of the pump body meet the requirements of hydraulic sealing and assembly. During machining, it is crucial to control the accuracy of key components such as the flow channel profile, flange end face, and bearing holes. High-efficiency precision machining is typically performed using CNC machine tools, combined with quality control methods such as coordinate measuring machine (CMM) inspection.

[0003] When machining the pump body, a fixture is required to hold the pump body. However, traditional fixtures have low changeover efficiency and the precision deterioration caused by machining contamination affects the clamping stability of the pump body and causes a decrease in the machining accuracy of the pump body. Utility Model Content

[0004] The purpose of this invention is to provide a quick-change fixture for pump body machining based on magnetic coupling and directional chip removal, in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A quick-change fixture for pump body machining based on magnetic coupling and directional chip removal includes,

[0007] The support mechanism includes a base plate and two side plates fixedly mounted on the top of the base plate;

[0008] The integrated mechanism includes an adsorption component to prevent impurities from adsorbing, a chip removal component to remove chips, and an anti-fouling component fitted onto the surface of the adsorption component.

[0009] As a preferred embodiment of the present invention, the adsorption component includes a plurality of magnet units disposed on the surface of the substrate, a lower clamping plate disposed above the substrate, an upper clamping plate fixedly installed on the top of the lower clamping plate and used for clamping the pump body, and a neodymium iron boron permanent magnet disposed at the bottom of the lower clamping plate.

[0010] As a preferred embodiment of the present invention, the adsorption component further includes a limiting block fixedly installed on the surface of the upper clamping plate, and a spring fixedly installed between the limiting block and the base plate. The surface of the side plate is provided with a sliding groove for sliding with the limiting block.

[0011] In a preferred embodiment of this utility model, a positioning rod is fixedly installed on the top of the substrate, and a positioning hole for use with the positioning rod is opened on the surface of the limiting block.

[0012] As a preferred embodiment of this utility model, the chip removal component includes a right-hand spiral channel opened inside the lower clamping plate and a left-hand spiral channel opened inside the upper clamping plate. Both the right-hand spiral channel and the left-hand spiral channel utilize processing centrifugal force to discharge waste chips to both sides.

[0013] As a preferred embodiment of this utility model, the anti-fouling component includes a zirconia ceramic bushing sleeved on the surface of the upper clamping plate, which prevents metal materials from adhering through physical isolation.

[0014] In a preferred embodiment of this utility model, there are sixteen magnet units arranged in a grid pattern, and each magnet unit is independently controlled to turn on and off.

[0015] Compared with the prior art, the beneficial effects of this utility model are: through the cooperation between the adsorption component and the chip removal component, it can be used to clamp and position the pump body and achieve the effect of chip removal, realizing a dual breakthrough in rapid changeover and processing cleanliness. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the adsorption component structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the chip removal component of this utility model;

[0020] Figure 4 This is a schematic diagram of the anti-fouling component structure of this utility model.

[0021] In the diagram: 100, Support mechanism; 110, Base plate; 120, Side plate; 200, Integrated mechanism; 210, Adsorption component; 211, Magnet unit; 212, Lower clamping plate; 213, Upper clamping plate; 214, Neodymium iron boron permanent magnet; 215, Limiting block; 216, Spring; 217, Positioning rod; 220, Chip removal component; 221, Right-hand spiral channel; 222, Left-hand spiral channel; 230, Anti-fouling component; 231, Zirconia ceramic bushing. Detailed Implementation

[0022] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0023] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0024] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0025] Example

[0026] Reference Figure 1-4 This embodiment of the present invention provides a quick-change fixture for pump body machining based on magnetic coupling and directional chip removal, comprising:

[0027] The support mechanism 100 includes a base plate 110 and two side plates 120 fixedly mounted on the top of the base plate 110.

[0028] The integrated mechanism 200 includes an adsorption component 210 for preventing impurities from adsorbing, a chip removal component 220 for chip removal, and an anti-fouling component 230 sleeved on the surface of the adsorption component 210.

[0029] The adsorption component 210 and the chip removal component 220 work together to clamp and position the pump body and achieve chip removal, thus achieving a breakthrough in both rapid changeover and processing cleanliness.

[0030] Specifically, the adsorption component 210 includes a plurality of magnet units 211 disposed on the surface of the substrate 110, a lower clamping plate 212 disposed above the substrate 110, an upper clamping plate 213 fixedly mounted on the top of the lower clamping plate 212 and used for clamping the pump body, and a neodymium iron boron permanent magnet 214 disposed at the bottom of the lower clamping plate 212.

[0031] The neodymium iron boron permanent magnet 214 only generates adsorption force in the area overlapping with the activated magnet unit 211 to avoid the adsorption of impurities. At the same time, when the magnet unit 211 and the neodymium iron boron permanent magnet 214 are adsorbed, the lower clamping plate 212 and the upper clamping plate 213 move down to clamp the pump body placed on the top of the substrate 110, so as to improve the processing stability of the pump body.

[0032] Furthermore, the adsorption component 210 also includes a limiting block 215 fixedly installed on the surface of the upper clamping plate 213, and a spring 216 fixedly installed between the limiting block 215 and the base plate 110. The surface of the side plate 120 is provided with a sliding groove for sliding with the limiting block 215.

[0033] The cooperation between the limiting block 215 and the slide groove is used to improve the clamping stability of the upper clamping plate 213 on the pump body.

[0034] Preferably, a positioning rod 217 is fixedly mounted on the top of the substrate 110, and a positioning hole for use with the positioning rod 217 is opened on the surface of the limiting block 215.

[0035] The positioning rod 217 and the positioning hole are used to limit the upper and lower movement of the limiting block 215, thereby improving its movement stability.

[0036] Furthermore, the chip removal component 220 includes a right-hand spiral channel 221 opened inside the lower clamping plate 212 and a left-hand spiral channel 222 opened inside the upper clamping plate 213. Both the right-hand spiral channel 221 and the left-hand spiral channel 222 utilize the centrifugal force of processing to discharge waste chips to both sides.

[0037] The right-hand spiral channel 221 and the left-hand spiral channel 222 are used to discharge the debris generated during the pump body processing. The inner walls of both the right-hand spiral channel 221 and the left-hand spiral channel 222 are coated with diamond-like carbon to reduce frictional resistance and prevent debris from getting stuck.

[0038] Specifically, the anti-fouling component 230 includes a zirconia ceramic bushing 231 fitted onto the surface of the upper clamping plate 213. The zirconia ceramic bushing 231 prevents metal materials from adhering through physical isolation.

[0039] Among them, the surface of the zirconia ceramic bushing 231 is laser-engraved with interlaced microgrooves to increase friction and guide debris into the interior of the left-hand spiral channel 222.

[0040] Furthermore, there are sixteen magnet units 211 arranged in a grid pattern, and each magnet unit 211 is independently controlled to turn on and off.

[0041] Among them, the magnet units 211 are arranged in a sixteen-grid array, and each magnet unit is independently controlled to turn on and off. The lower clamping plate 212 has a neodymium iron boron permanent magnet 214 embedded at the corresponding position at the bottom, which generates an adsorption force only in the area overlapping with the activated magnet unit 211, thus avoiding the adsorption of impurities.

[0042] During use, the neodymium iron boron permanent magnet 214 only generates adsorption force in the area overlapping with the activated magnet unit 211, avoiding the adsorption of impurities. At the same time, when the magnet unit 211 and the neodymium iron boron permanent magnet 214 are adsorbed, the lower clamping plate 212 and the upper clamping plate 213 move down to clamp the pump body placed on the top of the substrate 110, thereby improving the processing stability of the pump body. The cooperation between the right-hand spiral channel 221 and the left-hand spiral channel 222 is used to discharge the debris generated during the processing of the pump body. The inner walls of the right-hand spiral channel 221 and the left-hand spiral channel 222 are coated with diamond-like carbon to reduce frictional resistance and prevent debris from getting stuck.

[0043] In summary, the combination of the adsorption component 210 and the chip removal component 220 can be used to clamp and position the pump body and achieve the effect of chip removal, thus achieving a dual breakthrough in rapid changeover and processing cleanliness.

[0044] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0045] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0046] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0047] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A quick-change fixture for pump body machining based on magnetic coupling and directional chip removal, characterized in that: include, The support mechanism (100) includes a base plate (110) and two side plates (120) fixedly mounted on the top of the base plate (110); The integrated mechanism (200) includes an adsorption component (210) for preventing impurities from adsorbing, a chip removal component (220) for removing chips, and an anti-fouling component (230) sleeved on the surface of the adsorption component (210).

2. The quick-change fixture for pump body machining based on magnetic coupling and directional chip removal according to claim 1, characterized in that: The adsorption component (210) includes a plurality of magnet units (211) disposed on the surface of the substrate (110), a lower clamping plate (212) disposed above the substrate (110), an upper clamping plate (213) fixedly installed on the top of the lower clamping plate (212) and used for clamping the pump body, and a neodymium iron boron permanent magnet (214) disposed at the bottom of the lower clamping plate (212).

3. A quick-change fixture for pump body machining based on magnetic coupling and directional chip removal according to claim 2, characterized in that: The adsorption component (210) also includes a limiting block (215) fixedly installed on the surface of the upper clamping plate (213), and a spring (216) fixedly installed between the limiting block (215) and the substrate (110). The side plate (120) has a sliding groove for sliding with the limiting block (215).

4. A quick-change fixture for pump body machining based on magnetic coupling and directional chip removal according to claim 3, characterized in that: A positioning rod (217) is fixedly installed on the top of the substrate (110), and a positioning hole for use with the positioning rod (217) is opened on the surface of the limiting block (215).

5. A quick-change fixture for pump body machining based on magnetic coupling and directional chip removal according to claim 4, characterized in that: The chip removal component (220) includes a right-hand spiral channel (221) inside the lower clamping plate (212) and a left-hand spiral channel (222) inside the upper clamping plate (213). Both the right-hand spiral channel (221) and the left-hand spiral channel (222) utilize centrifugal force to discharge waste chips to both sides.

6. A quick-change fixture for pump body machining based on magnetic coupling and directional chip removal according to claim 5, characterized in that: The anti-fouling component (230) includes a zirconia ceramic bushing (231) fitted onto the surface of the upper clamping plate (213), which prevents metal materials from adhering through physical isolation.

7. A quick-change fixture for pump body machining based on magnetic coupling and directional chip removal according to claim 6, characterized in that: The number of magnet units (211) is sixteen, and they are arranged in a grid. Each magnet unit (211) is independently controlled to turn on and off.