Adjustable vehicle crankshaft finish machining cooling nozzle
By designing adjustable cooling nozzles for automotive crankshaft precision machining and using temperature and pressure sensors to monitor coolant parameters, the problem of fixed coolant position during grinding was solved, achieving adaptability to different crankshaft models and fine machining effects.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LIAONING 518 INTERNAL COMBUSTION ENGINE FITTINGS
- Filing Date
- 2025-05-19
- Publication Date
- 2026-04-17
AI Technical Summary
In the existing technology, the fixed position of coolant during the grinding process ignores the impact of part temperature changes on the grinding wheel accuracy and surface structure, resulting in damage to the surface strength and toughness of the crankshaft, and the nozzle cannot adapt to the processing requirements of different crankshaft models.
An adjustable cooling nozzle for automotive crankshaft precision machining was designed. The temperature and pressure of the coolant are monitored by temperature and pressure sensors, and the nozzle position and coolant parameters are adjusted through a control center to achieve precision machining.
It enables flexible adjustment of nozzle position to adapt to the processing requirements of different crankshaft models, and ensures the accuracy of the grinding process and the quality of the crankshaft surface by precisely controlling the temperature and pressure of the coolant.
Smart Images
Figure CN224129483U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of machinery, specifically a cooling nozzle for grinding machine processing. Background Technology
[0002] The grinding of large crankshafts requires extremely high precision; ensuring this precision depends on many factors, among which the cooling of the grinding wheel is crucial. Current cooling technology relies solely on a fixed-position nozzle to cool the part, neglecting the impact of temperature changes on the physical precision and surface microstructure of the grinding wheel. Consequently, the grinding process affects the internal microstructure of the crankshaft surface, consequently impacting its surface strength and toughness. Furthermore, due to the wide variety of crankshaft models, adjusting the nozzle holder is necessary to produce different crankshafts, a feature currently lacking in this regard. Utility Model Content
[0003] To solve the above-mentioned technical problems, the purpose of this utility model is to provide an adjustable cooling nozzle for automotive crankshaft precision machining. The nozzle base has an internal cavity one, which is connected to a water inlet. The other end of cavity one is fixed to a nozzle connecting sleeve. Multiple connecting rods are provided on the side of the nozzle base where the nozzle connecting sleeve is fixed. The nozzle base has a connecting plate, which is connected to the grinding wheel cover of a grinding machine. The nozzle body includes a through hole matching the connecting rods and a cavity two matching the nozzle connecting sleeve, with the nozzle connecting sleeve inserted into cavity two. The connecting rods pass through the through hole, and the outer end of the connecting rods is threaded, with the threaded section screwed onto a nut. An elastic sealing layer is provided on the inner end face of cavity two where it connects to the nozzle connecting sleeve. The lower part of cavity two is connected to the nozzle.
[0004] The upper end of the second cavity is provided with a screw hole, and the detector housing is screwed into the screw hole; a temperature sensor and a pressure sensor are provided inside the detector housing.
[0005] The water inlet is connected to the water inlet pipe, and a delivery pump is installed on the water inlet pipe; the delivery pump is connected to the control center through a controller.
[0006] The nozzle includes a nozzle cover, which is composed of multiple pieces. In this way, the area without the nozzle cover forms the nozzle, thus enabling adjustment of the nozzle position.
[0007] The advantages of this utility model are: 1. It can adjust the position of the nozzle body to adapt to the machining of crankshafts of different specifications; 2. Due to the use of pressure and temperature monitoring devices, the temperature and pressure of the coolant can be adjusted during the machining process, ensuring fine machining. Attached Figure Description
[0008] Figure 1 This is a schematic diagram of the structure of this utility model;
[0009] Figure 2 This is a schematic diagram of the nozzle body. Detailed Implementation
[0010] The present invention will now be described in detail with reference to the accompanying drawings. As shown in the figures, the nozzle base 1 has an internal cavity 12, which is connected to the water inlet 8. The other end of the cavity 12 is fixed to the nozzle connecting sleeve 2. The fixing method can be threaded, adhesive, welding, etc. Multiple connecting rods 3 are provided on the side of the nozzle base where the nozzle connecting sleeve 2 is fixed. The nozzle base has a connecting plate 11, which is connected to the grinding wheel cover of the grinding machine. The nozzle body 4 includes a through hole matching the connecting rod and a cavity 43 matching the nozzle connecting sleeve 2. The nozzle connecting sleeve 2 is inserted into the cavity 43. The connecting rod 3 passes through the through hole, and the outer end of the connecting rod is threaded. The threaded section is screwed to the nut 5. The inner diameter of the through hole matches the outer diameter of the connecting rod, and the inner end face of the cavity 43 connected to the nozzle connecting sleeve is provided with an elastic sealing layer 41 to prevent coolant leakage. Figure 1 For example, the left end of the connecting rod is smooth, and the right end is provided with a threaded section; the lower part of cavity 43 is connected to nozzle 45;
[0011] The upper end of the cavity 43 is provided with a screw hole 42, and the detector housing 7 is screwed into the screw hole; a temperature sensor and a pressure sensor are provided inside the detector housing; the temperature sensor and the pressure sensor are connected to the control center through a wireless module;
[0012] The water inlet 8 is connected to the water inlet pipe, and a delivery pump is installed on the water inlet pipe; the delivery pump is connected to the control center through a controller.
[0013] The nozzle 45 includes a nozzle cover 44, which is composed of multiple parts, so that the position of the nozzle 45 can be adjusted by adjusting the number of nozzle covers.
[0014] The flow direction of the coolant is shown by the arrow in the figure; the principle of this utility model is: by adjusting the length of the connecting rod at the outer end of the nozzle body, the position of the nozzle connecting sleeve in the cavity two of the nozzle body is changed, thereby adjusting the distance between the nozzle base and the nozzle body to adapt to different specifications of grinding wheels;
[0015] When the coolant in the coolant circulation tank is sent back to the cooling nozzle body by the transfer pump, the control center adjusts the speed of the transfer pump and whether the coolant temperature needs to be adjusted based on the data from the temperature and pressure sensors. The temperature adjustment methods include, but are not limited to, adding coolant at different temperatures, thereby achieving precise control of the cooling effect during the processing and realizing fine machining.
Claims
1. An adjustable crankshaft finishing cooling nozzle for an automotive vehicle characterized by: The nozzle base has an internal cavity 1, which is connected to the water inlet. The other end of cavity 1 is fixed to the nozzle connecting sleeve. Multiple connecting rods are provided on the side of the nozzle base with the nozzle connecting sleeve fixed. The nozzle base has a connecting plate, which is connected to the grinding wheel cover of the grinding machine. The nozzle body includes a through hole matching the connecting rod and a cavity 2 matching the nozzle connecting sleeve. The nozzle connecting sleeve is inserted into cavity 2. The connecting rod passes through the through hole, and the outer end of the connecting rod is threaded. The threaded section is screwed to a nut. An elastic sealing layer is provided on the inner end face of cavity 2 where it connects to the nozzle connecting sleeve. The lower part of cavity 2 is connected to the nozzle.
2. The adjustable crankshaft finishing cooling nozzle for automotive applications of claim 1, wherein: The upper end of the second cavity is provided with a screw hole, and the detector housing is screwed into the screw hole; a temperature sensor and a pressure sensor are provided inside the detector housing.
3. The adjustable crankshaft finishing cooling nozzle for automotive applications of claim 2, wherein: The water inlet is connected to the water inlet pipe, and a delivery pump is installed on the water inlet pipe; the delivery pump is connected to the control center through a controller.
4. The adjustable crankshaft finishing cooling nozzle for automotive applications of claim 2, wherein: The nozzle includes a nozzle cover, which is an assembly of multiple parts.