Polishing device for plane of oil sprayer body

Abstract

The utility model provides an oil sprayer body plane grinding device which comprises a support, a belt pulley is arranged at one end of the support, a rotating air cylinder is arranged at the end, away from the support, of the belt pulley, a main shaft is arranged on the side, away from the rotating air cylinder, of the support, and a positioning end cover is arranged on the side, away from the support, of the main shaft. Relates to the technical field of oil injector machining, and is provided with a positioning end cover, an oil injector body is attached to the positioning end cover, in order to guarantee the plane quality of the end face of the oil injector body to be machined after machining, after a clamp is installed on a machine tool, the positioning end cover is detached, the front end face of a spindle is automatically ground on the machine tool, and the front end face of the spindle is perpendicular to the rotating end face of a grinding wheel of the machine tool. The inner end face in axial positioning contact with the oil injector body is ground to be flat through the positioning end cover before installation, and the perpendicularity of the ground rear end face of the to-be-machined face of the oil injector body and the axis of the oil injector body is guaranteed when the clamp works.

Description

TECHNICAL FIELD

[0001] The utility model relates to fuel injector processing technical field, in particular to a kind of fuel injector body plane polishing device. BACKGROUND

[0002] Fuel injector is a kind of precision device with very high machining precision, requires its dynamic flow range is large, anti-clogging and anti-pollution ability is strong and atomization performance is good.Fuel injector receives the fuel injection pulse signal sent by ECU, accurately controls fuel injection amount, and fuel injector includes fuel injector body shell, when fuel injector body shell is processed, polishing mechanism is needed to polish multiple fuel injector body shells.

[0003] The existing fuel injector body polishing device cannot accurately position the perpendicularity of the plane of the fuel injector body when polishing the fuel injector body, which causes low polishing efficiency due to poor perpendicularity during polishing. UTILITY MODEL CONTENTS

[0004] In order to overcome the problem that the perpendicularity of the existing fuel injector body cannot be accurately positioned, the present application provides a fuel injector body plane polishing device, which is provided with a positioning end cover, and the fuel injector body and the positioning end cover are attached to each other. In order to ensure the quality of the end face plane of the fuel injector body to be processed after processing, the clamp is removed after installation on the machine tool, and the front end face of the self-grinding spindle is polished on the machine tool to ensure that the front end face of the spindle is perpendicular to the rotary end face of the machine tool grinding wheel. The inner end face of the positioning end cover is polished before installation to ensure that the rear end face of the fuel injector body to be processed is perpendicular to the axis of the fuel injector body during polishing.

[0005] The technical solution adopted by the present application to solve its technical problem is:

[0006] A fuel injector body plane polishing device, comprising a support, one end of the support is provided with a belt pulley, the outer wall of the belt pulley is sleeved with a belt, and the other end of the belt is sleeved on the upper surface of the output shaft of the motor. One end of the belt pulley away from the support is provided with a rotating cylinder, one side of the support away from the rotating cylinder is provided with a main shaft, one side of the main shaft away from the support is provided with a positioning end cover, an inner hole is formed in the inner shaft of the positioning end cover, and the inner side of the main shaft in the positioning end cover is provided with an inner cavity. To ensure the quality of the end face plane of the fuel injector body to be processed after processing, turn on the switch of the rotating cylinder to tightly push the fuel injector body with the ejector rod, then start the motor, the motor drives the belt pulley connected with the main shaft to rotate, and then start the machine tool. The grinding wheel is fed, so that the fuel injector end face can be processed. After processing is completed, the machine tool grinding wheel is retracted, the motor stops rotating, the clamp main shaft stops, the switch of the rotating cylinder is unscrewed, the ejector rod is retracted, and the processed fuel injector is taken out.

[0007] Preferably, the rotating air cylinder is provided with a jack rod inside the support, the other side of the jack rod is provided with a clamping assembly, the clamping assembly comprises a clamping rod, one end of the clamping rod is provided with a clamping block, the end of the clamping block away from the clamping rod is internally provided with a groove, the inside of the groove is provided with a center ball, the center ball is placed in the hole of the groove inside the clamping block, and then placed in the rear end hole of the oil injector body, the above integrated piece is placed in the inner cavity of the front end of the main shaft, and inserted into the inner hole of the positioning end cover.

[0008] Preferably, the outer surface of the intersection between the inside of the support and the jack rod is provided with a bearing spacer sleeve, the inside of the support is provided with a rear end cover on the inner side of the belt disc, through the setting of the rear end cover, when the inside of the support is maintained, the rear end cover can be disassembled, so that the support is maintained conveniently, and the bottom end of the support is provided with a base.

[0009] The embodiment of the application has the following advantages:

[0010] 1. The positioning end cover is arranged, the oil injector body and the positioning end cover are attached to each other, the end face plane quality of the oil injector body after machining is ensured, the positioning end cover is removed after the clamp is installed on the machine tool, the front end face of the main shaft is self-ground on the machine tool, the front end face of the main shaft is perpendicular to the rotary end face of the grinding wheel of the machine tool, the inner end face of the positioning end cover is ground flat before installation and is in contact with the axial positioning of the oil injector body, and the perpendicularity between the rear end face of the oil injector body ground during working of the clamp and the axial line of the oil injector body is ensured.

[0011] 2. The rotating air cylinder is arranged in the utility model, the oil injector body is inserted into the inner hole of the positioning end cover, the switch of the rotating air cylinder is turned on to clamp the oil injector body by the rotating air cylinder, and the clamping function is achieved. BRIEF DESCRIPTION OF DRAWINGS

[0012] The utility model is further described below in combination with the drawings and embodiments.

[0013] Figure 1 It is a front structure schematic view of the oil injector body plane polishing device of the utility model;

[0014] Figure 2 It is a sectional structure schematic view of the oil injector body plane polishing device of the utility model;

[0015] Figure 3 It is a front sectional structure schematic view of the clamping assembly of the utility model.

[0016] MAIN REFERENCE NUMERALS:

[0017] 1. Base; 2. Rotating cylinder; 3. Belt pulley; 4. Rear end cover; 5. Support; 6. Spindle; 7. Positioning end cover; 8. Push rod; 9. Clamping assembly; 91. Clamping rod; 92. Clamping block; 93. Groove; 10. Center steel ball; 11. Bearing spacer. DETAILED DESCRIPTION

[0018] The technical solution in the embodiments of the present application is to solve the above problems, and the overall idea is as follows:

[0019] Example 1:

[0020] This embodiment provides a specific structure of a surface polishing device for a fuel injector body, such as Figure 1-3 The cam 6 is provided with a plurality of guide wheels 1 and 2, and a plurality of guide wheels 1 are provided on the drive shaft 5 of the motor 2. The guide wheels 1 are provided with a plurality of guide wheels 1 and 2, and a plurality of guide wheels 1 are provided on the drive shaft 5 of the motor 2. The guide wheels 1 are provided with a plurality of guide wheels 1 and 2, and a plurality of guide wheels 1 are provided on the drive shaft 5 of the motor 2.

[0021] By adopting the above technical solutions:

[0022] Turn on the switch of the rotating cylinder 2 to make the push rod 8 press against the injector body, then start the motor, the motor drives the belt pulley 3 connected to the main shaft 6 to rotate, so that the main shaft 6 rotates, and then start the machine tool and feed the grinding wheel. In this way, the end face of the injector can be processed. After the processing is completed, the machine tool grinding wheel retracts, the motor stops rotating, the fixture main shaft 6 stops, turn on the switch of the rotating cylinder 2, the push rod 8 retracts, and the processed injector can be taken out.

[0023] Example 2:

[0024] This embodiment provides a specific structure of a surface polishing device for a fuel injector body, such as Figure 1-3As shown, the rotating cylinder 2 is located inside the support 5 and is provided with a push rod 8. The other side of the push rod 8 is provided with a tightening assembly 9. The tightening assembly 9 includes a tightening rod 91, and a tightening block 92 is provided at one end of the tightening rod 91. A groove 93 is opened inside the tightening block 92 at the end away from the tightening rod 91. A center steel ball 10 is provided inside the groove 93. The center steel ball 10 is placed in the hole of the groove 93 inside the tightening block 92, and then placed in the rear end hole of the injector body. The above-mentioned integrated part is placed in the inner cavity of the front end of the main shaft 6, and inserted into the inner hole of the positioning end cover 7.

[0025] By adopting the above technical solutions:

[0026] Place the center steel ball 10 into the hole of the groove 93 inside the tightening block 92, and then into the rear end hole of the injector body. Place the above-mentioned integrated part into the inner cavity of the front end of the main shaft 6 and insert it into the inner hole of the positioning end cover 7.

[0027] Example 3:

[0028] This embodiment provides a specific structure of a surface polishing device for a fuel injector body, such as Figure 1-3 As shown, a bearing spacer 11 is provided on the outer surface of the intersection of the interior of the support 5 and the push rod 8, and a rear end cover 4 is provided on the inner side of the support 5 located on the pulley 3. Through the setting of the rear end cover 4, the rear end cover 4 can be removed when the interior of the support 5 is repaired, thereby facilitating the repair of the support 5. A base 1 is provided at the bottom end of the support 5, and the base 1 is connected to the machine tool.

[0029] By adopting the above technical solutions:

[0030] By setting the rear end cover 4, when repairing the inside of the support 5, the rear end cover 4 can be disassembled, thereby facilitating the repair of the support 5, and at the same time, the base 1 is connected to the slide rail inside the grinder.

[0031] Working principle: Place the center steel ball 10 into the hole of the groove 93 inside the tightening block 92, and then into the rear end hole of the injector body, place the above-mentioned integrated part into the inner cavity at the front end of the main shaft 6, and insert it into the inner hole of the positioning end cover 7, turn on the switch of the rotating cylinder 2 to make the push rod 8 tighten the injector body, then start the motor, the motor drives the belt pulley 3 connected to the main shaft 6 to rotate, so that the main shaft 6 rotates, and then start the machine tool and feed the grinding wheel, so that the end face of the injector can be processed. After the processing is completed, the machine tool grinding wheel retracts, the motor stops rotating, the fixture spindle 6 stops, unscrew the switch of the rotating cylinder 2, the push rod 8 retracts, and the processed injector can be taken out.

[0032] Finally, it should be noted that the above embodiments are merely examples for the purpose of illustrating the present invention and are not intended to limit the embodiments. Those skilled in the art will readily appreciate that other variations or modifications based on the above description are possible. It is not necessary and impossible to provide an exhaustive list of all possible embodiments. However, any obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A surface polishing device for a fuel injector body, characterized in that: The invention comprises a support (5), one end of the support (5) is provided with a belt pulley (3), the end of the belt pulley (3) away from the support (5) is provided with a rotating cylinder (2), the side of the support (5) away from the rotating cylinder (2) is provided with a main shaft (6), and the side of the main shaft (6) away from the support (5) is provided with a positioning end cover (7) for ensuring the plane quality of the end face of the injector body to be processed after processing.

2. The injector body surface grinding device according to claim 1, characterized in that: The rotating cylinder (2) is provided with a push rod (8) located inside the support (5), and a tightening assembly (9) is provided on the other side of the push rod (8).

3. The injector body surface grinding device according to claim 2, characterized in that: The tightening assembly (9) includes a tightening rod (91), one end of the tightening rod (91) is provided with a tightening block (92), an end of the tightening block (92) away from the tightening rod (91) is provided with a groove (93) inside, and a central steel ball (10) is provided inside the groove (93).

4. The injector body surface grinding device according to claim 1, characterized in that: An inner hole is provided at the inner axis center of the positioning end cover (7).

5. The injector body surface grinding device according to claim 1, characterized in that: The main shaft (6) is provided with an inner cavity on the inner side of the positioning end cover (7).

6. The injector body surface grinding device according to claim 1, characterized in that: A bearing spacer (11) is provided on the outer surface of the intersection of the interior of the support (5) and the push rod (8).

7. The injector body surface grinding device according to claim 1, characterized in that: The outer wall of the belt pulley (3) is sleeved with a belt, and the other end of the belt is sleeved on the upper surface of the output shaft of the motor.

8. The injector body surface grinding device according to claim 1, characterized in that: The support (5) is located on the inner side of the belt pulley (3) and is provided with a rear end cover (4), and the bottom end of the support (5) is provided with a base (1).

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