Processing device for high-pressure common rail fuel injection nozzle orifice

Abstract

The utility model relates to fuel nozzle nozzle hole processing technical field especially relates to a kind of processing device for high-pressure common rail fuel nozzle nozzle hole, it include: pedestal, fixed mechanism and burr removal mechanism, fixed mechanism includes: first driving part, first slider, first fixed part and two second fixed parts, first driving part is connected with pedestal, first slider is slidably connected with pedestal, the telescopic end of first driving part is connected with first slider, first fixed part, second fixed part are all installed in the side of first slider away from first driving part, burr removal mechanism is connected with pedestal, and burr removal mechanism is located in the side of first fixed part, second fixed part away from first slider. The utility model is inserted with the way of double fixed mode of clamping type fixation, can ensure that fuel nozzle keeps stable, cannot occur wobble, can ensure that the contact of burr removal mechanism and the outside of fuel nozzle cannot be too light or too heavy, to improve the removal effect of the burr of the outside of fuel nozzle.

Description

Technical Field

[0001] This utility model relates to the field of fuel injector nozzle machining technology, and in particular to a machining device for high-pressure common rail fuel injector nozzle nozzles. Background Technology

[0002] High-pressure common rail fuel injectors are core components of modern diesel engine fuel injection systems. They achieve precise fuel injection through high-pressure common rail technology (a closed-loop system consisting of a high-pressure fuel pump, pressure sensor, and electronic control unit (ECU), significantly improving engine performance, fuel economy, and environmental friendliness. However, burrs easily form on the outer side of the injector during the machining process. Therefore, a machining device for high-pressure common rail injector nozzles is urgently needed to remove these burrs.

[0003] Currently, the method for removing burrs on the outside of fuel injectors is manual, which involves manually holding the fuel injector to remove the burrs. However, when manually holding the fuel injector, it is very easy for the fuel injector to shake during the burr removal process, which will affect the removal effect of the burrs on the outside of the fuel injector. Utility Model Content

[0004] In response to the shortcomings of the existing production technology, the applicant provides a processing device for the nozzle orifice of a high-pressure common rail fuel injector. By improving the structure of the processing device, the fuel injector can be prevented from shaking during the deburring process, thereby improving the removal effect of burrs on the outer side of the fuel injector.

[0005] The technical solution adopted in this utility model is as follows:

[0006] A processing device for the nozzle nozzle of a high-pressure common rail fuel injector includes: a base, a fixing mechanism, and a deburring mechanism. The fixing mechanism includes: a first driving member, a first slider, a first fixing part, and two second fixing parts. The first driving member is connected to the base, and the first slider is slidably connected to the base. The telescopic end of the first driving member is connected to the first slider. The first fixing part and the second fixing parts are both installed on the side of the first slider away from the first driving member. The first driving member is used to drive the first slider to move towards or away from the first fixing part and the second fixing part. The first fixing part is used to insert and fix the fuel injector to be deburred. The two second fixing parts clamp and fix the fuel injector at both ends of the outer side of the fuel injector. The deburring mechanism is connected to the base and is located on the side of the first fixing part and the second fixing part away from the first slider. The deburring mechanism is used to deburr the outer side of the fuel injector to remove burrs from the outer side of the fuel injector.

[0007] Therefore, by combining the insertion-type fixing of the first fixing part and the clamping-type fixing of the second fixing part to fix the high-pressure common rail injector, compared with the existing handheld method, this method has a simpler structure and is easier to operate. The dual fixing method of insertion-type fixing and clamping-type fixing can ensure that the injector remains stable and does not shake. This operation can ensure that the contact between the burr removal mechanism and the outside of the injector is neither too light nor too heavy, thereby improving the burr removal effect on the outside of the injector. In addition, the two second fixing parts can clamp and fix the injector from both ends, ensuring that the end of the injector that needs to be deburred (i.e., the end of the injector away from the first slider) always remains stable and does not shift, thereby better fixing the injector and further improving the burr removal effect on the outside of the injector. The first driving member drives the first slider to move closer to or away from the first fixing part and the second fixing part (i.e., the burr removal mechanism), so that there is sufficient space between the fixing mechanism and the burr removal mechanism for the installation and removal of the high-pressure common rail injector to be deburred.

[0008] As a further improvement to the above technical solution: the first fixing part is a cylindrical fixing rod. Therefore, the cylindrical fixing rod can be easily inserted into the high-pressure common rail injector.

[0009] As a further improvement to the above technical solution: the second fixing part includes: a second driving member, a bidirectional threaded rod, two second sliders, and two clamping blocks. The second driving member is connected to the first slider. One end of the bidirectional threaded rod is rotatably connected to the first slider, and the other end of the bidirectional threaded rod is connected to the driving end of the second driving member. The second slider passes through the bidirectional threaded rod and is threadedly connected to it. The clamping blocks are connected to the second sliders. The second driving member is used to drive the two clamping blocks to move relative to each other or towards each other. The longitudinal cross-sectional shape of the clamping block is arc-shaped, and a rubber pad is provided on the side of the clamping block away from the second slider. The clamping blocks correspond one-to-one with the second sliders. Therefore, by moving the two clamping blocks relative to each other or towards each other, it can be ensured that the center point of the two clamping blocks always coincides with the axis of the first fixing part. In this way, no matter how the two clamping blocks move, the two clamping blocks can always clamp the fuel injector at the same time, and there will be no situation where one clamping block is in contact with the fuel injector while the other clamping block is not in contact with the fuel injector. The rubber pad can ensure that the clamping blocks are in direct contact with the fuel injector, thereby avoiding damage to the outside of the fuel injector caused by the clamping blocks.

[0010] As a further improvement to the above technical solution: two burr removal mechanisms are provided, arranged opposite to each other, and located in the area below the fuel injector. Thus, the two burr removal mechanisms work together to remove burrs from the fuel injector, improving the burr removal efficiency. The location of the burr removal mechanisms in the area below the fuel injector ensures that the burr removal action is performed below the fuel injector, allowing the removed burrs to fall off under gravity instead of remaining on the surface of the fuel injector, further enhancing the burr removal effect.

[0011] As a further improvement to the above technical solution: the burr removal mechanism includes a drive assembly, a grinding section, and a blowing section. The grinding section and the blowing section are both connected to the drive end of the drive assembly, and the blowing section is located on the side of the grinding section away from the base. The drive assembly is used to drive the grinding section to move towards or away from the fuel injector, and to drive the grinding section to rotate around its own axial direction. The grinding section is used to remove burrs on the outside of the fuel injector. The drive assembly is used to drive the blowing section to move towards or away from the fuel injector. The blowing section is used to blow out cold air, which acts on the grinding section and the fuel injector to cool the contact area between the grinding section and the fuel injector, and to clean the removed burrs. Therefore, the cold air blown out by the blower can, on the one hand, cool down the contact area between the grinding part and the fuel injector to prevent overheating caused by the interaction between the grinding part and the fuel injector, which would affect the removal effect of the fuel injector burrs, thus further improving the removal effect of the fuel injector burrs. On the other hand, the blown cold air can add an extra force to the removed burrs. Under the combined action of the blowing force and gravity, the removal efficiency and effect of the removed burrs can be accelerated, thus further improving the removal efficiency and effect of the fuel injector burrs.

[0012] As a further improvement to the above technical solution: the driving assembly includes: a first driving part and a second driving part, the first driving part being connected to the base, the blowing part and the second driving part being mounted on the telescopic end of the first driving part, the grinding part being mounted on the driving end of the second driving part, the first driving part being used to drive the grinding part and the blowing part to move towards or away from the fuel injector, and the second driving part being used to drive the grinding part to rotate around its own axial direction.

[0013] As a further improvement to the above technical solution: the first driving part includes: a third driving member and a fixing block, the third driving member is connected to the base, the fixing block is connected to the telescopic end of the third driving member, the blowing part and the second driving part are both connected to the fixing block; one end of the grinding part is rotatably connected to the fixing block, the second driving part is connected to the fixing block, and the driving end of the fixing block is connected to the grinding part.

[0014] As a further improvement to the above technical solution, it also includes a slag collection plate, which is embedded in the base and is used to absorb burrs. Thus, the slag collection plate can absorb and collect fallen burrs, preventing them from splashing indiscriminately and facilitating subsequent burr cleaning.

[0015] As a further improvement to the above technical solution, it also includes a support plate that penetrates the base and is slidably connected to the base. The support plate is located on the side of the slag collection plate away from the burr removal mechanism. The support plate is used to drive the slag collection plate to move towards or away from the burr removal mechanism. Thus, the support plate embedded in the base can be removed to facilitate subsequent burr removal.

[0016] As a further improvement to the above technical solution, the fixing mechanism further includes a fourth driving member and a rotating block. The fourth driving member is located on the side of the rotating block closer to the first slider, and the driving end of the fourth driving member is connected to the rotating block. The rotating block is rotatably connected to the first slider, and the first fixing part and the second fixing part are both installed on the side of the rotating block away from the first slider. Thus, the fourth driving member drives the rotating block to rotate, causing the first fixing part and the second fixing part to rotate, thereby driving the fuel injector to rotate, achieving the removal of burrs at various positions on the outer side of the fuel injector.

[0017] The beneficial effects of this utility model are as follows:

[0018] This invention uses a combination of insertion-type fixing of the first fixing part and clamping-type fixing of the second fixing part to fix the high-pressure common rail injector. Compared with the existing handheld method, this method has a simpler structure and is easier to operate. The dual fixing method of insertion-type fixing and clamping-type fixing ensures that the injector remains stable and does not shake. This operation ensures that the contact between the burr removal mechanism and the outside of the injector is neither too light nor too heavy, thereby improving the burr removal effect on the outside of the injector. In addition, the two second fixing parts can clamp and fix the injector from both ends, ensuring that the end of the injector that needs burr removal (i.e., the end of the injector away from the first slider) remains stable and does not shift, thus better fixing the injector and further improving the burr removal effect on the outside of the injector. The first driving member drives the first slider to move closer to or further away from the first fixing part and the second fixing part (i.e., the burr removal mechanism), so that there is sufficient space between the fixing mechanism and the burr removal mechanism for the installation and removal of the high-pressure common rail injector to be deburred.

[0019] This utility model also has the following advantages:

[0020] 1. This utility model ensures that the center point of the two clamping blocks always coincides with the axis of the first fixing part by moving relative to or towards each other. Thus, no matter how the two clamping blocks move, they can always clamp the fuel injector simultaneously, and there will be no situation where one clamping block contacts the fuel injector while the other does not. The rubber pad ensures that the clamping blocks are in direct contact with the fuel injector, thereby preventing the clamping blocks from damaging the outside of the fuel injector.

[0021] 2. This utility model uses two burr removal mechanisms to remove burrs from the fuel injector, thereby improving the burr removal efficiency. The burr removal mechanism is located in the lower area of ​​the fuel injector, so that the burr removal action is located below the fuel injector. The removed burrs can fall off under the action of gravity and will not still adhere to the surface of the fuel injector, thereby further improving the burr removal effect.

[0022] 3. The cold air blown out by the blower in this utility model can, on the one hand, cool down the contact area between the grinding part and the fuel injector to avoid overheating due to the interaction between the grinding part and the fuel injector, which would affect the removal effect of the fuel injector burrs, thus further improving the removal effect of the fuel injector burrs. On the other hand, the blown cold air can add an extra force to the removed burrs. Under the combined action of the blowing force and gravity, the removal efficiency and effect of the removed burrs can be accelerated, thus further improving the removal efficiency and effect of the fuel injector burrs. Attached Figure Description

[0023] Figure 1This is a first-view structural schematic diagram of the processing device for the nozzle orifice of a high-pressure common rail fuel injector according to the present invention.

[0024] Figure 2 This is a second-view structural schematic diagram of the processing device for the nozzle orifice of a high-pressure common rail fuel injector according to the present invention.

[0025] Figure 3 This is a first-view structural schematic diagram of the fixing mechanism of this utility model;

[0026] Figure 4 This is a second-view structural schematic diagram of the fixing mechanism of this utility model;

[0027] Figure 5 This is a schematic diagram of the structure of the second fixing part of this utility model;

[0028] Figure 6 This is a first-view structural schematic diagram of the deburring mechanism of this utility model.

[0029] Figure 7 This is a structural schematic diagram of the deburring mechanism of this utility model from a second perspective.

[0030] Figure 8 This is a first-person perspective view of the deburring process of the high-pressure common rail fuel injector of this utility model.

[0031] Figure 9 This is a second-view rendering of the deburring process of the high-pressure common rail injector of this utility model.

[0032] Figure 10 This is a schematic diagram of the high-pressure common rail fuel injector of this utility model.

[0033] Among them: 1. Base;

[0034] 2. Fixed mechanism;

[0035] 201. First driving component; 202. First slider; 203. First fixing part; 204. Second fixing part; 205. Second driving component; 206. Bidirectional threaded rod; 207. Second slider; 208. Clamping block; 209. Rubber pad; 210. Fourth driving component; 211. Rotating block;

[0036] 3. Burr removal mechanism;

[0037] 301. Drive assembly; 302. Grinding section; 303. Blowing section; 304. First drive section; 305. Second drive section; 306. Third drive component; 307. Fixing block;

[0038] 4. Slag collection plate;

[0039] 5. Support plate. Detailed Implementation

[0040] The specific embodiments of this utility model are described below with reference to the accompanying drawings.

[0041] like Figures 1 to 10 The diagram shows the preferred embodiment of this utility model. This embodiment of the processing device for the nozzle orifice of a high-pressure common rail fuel injector includes: a base 1, a fixing mechanism 2, and a burr removal mechanism 3. The fixing mechanism 2 includes: a first driving member 201, a first slider 202, a first fixing part 203, and two second fixing parts 204. The first driving member 201 is connected to the base 1, and the first slider 202 is slidably connected to the base 1. The telescopic end of the first driving member 201 is connected to the first slider 202. The first fixing part 203 and the second fixing part 204 are both installed on the first slider 202 away from the first driving member 201. On one side, the first driving member 201 is used to drive the first slider 202 to move closer to or further away from the first fixing part 203 and the second fixing part 204. The first fixing part 203 is used to insert and fix the fuel injector to be deburred. The two second fixing parts 204 respectively clamp and fix the fuel injector at both ends of the outer side of the fuel injector. The burr removal mechanism 3 is connected to the base 1 and is located on the side of the first fixing part 203 and the second fixing part 204 away from the first slider 202. The burr removal mechanism 3 is used to remove burrs from the outer side of the fuel injector. Therefore, the high-pressure common rail injector is fixed by the insertion-type fixing of the first fixing part 203 and the clamping-type fixing of the second fixing part 204. Compared with the existing handheld method, this method has a simple structure and is easy to operate. The dual fixing method of insertion-type fixing and clamping-type fixing can ensure that the injector remains stable and does not shake. This operation can ensure that the contact between the burr removal mechanism 3 and the outside of the injector is neither too light nor too heavy, thereby improving the burr removal effect on the outside of the injector. In addition, the two second fixing parts 204 can clamp and fix the injector from both ends, ensuring that the end of the injector that needs to have burrs removed (i.e., the end of the injector away from the first slider 202) always remains stable and does not shift, thereby better fixing the injector and further improving the burr removal effect on the outside of the injector. The fourth driving member 210 drives the rotating block 211 to rotate, so that the first fixing part 203 and the second fixing part 204 rotate, thereby driving the injector to rotate, so as to achieve the removal of burrs at various positions on the outside of the injector.

[0042] In other words, when deburring existing handheld high-pressure common rail injectors, the handheld method causes the injector to shake due to hand fatigue and contact between the injector and the deburring mechanism, thus affecting the deburring effect. However, this application uses the combined action of the first fixing part 203 and the two second fixing parts 204 to keep the injector stable and prevent shaking. This operation ensures that the contact between the deburring mechanism 3 and the outside of the injector is neither too light nor too heavy, thereby improving the deburring effect on the outside of the injector.

[0043] It should be noted that: "Too light contact between the burr removal mechanism 3 and the outer side of the fuel injector" means that the burr removal mechanism 3 does not make direct or slight contact. In this case, the burrs on the outer side of the fuel injector cannot be thoroughly cleaned, resulting in poor burr removal. "Too heavy contact between the burr removal mechanism 3 and the outer side of the fuel injector" means that there is excessive contact between the burr removal mechanism 3 and the outer side of the fuel injector. The burr removal mechanism 3 will exert pressure on the outer side of the fuel injector. In this case, the outer side of the fuel injector will be damaged during the burr removal process (i.e., friction damage during mutual movement).

[0044] It should be noted that the direction in which the first driving component 201 drives the first slider 202 to move closer to or further away from the first fixed part 203 and the second fixed part 204 is along the Y-axis.

[0045] For example, the first driving component 201 is a cylinder.

[0046] In this embodiment, the first fixing part 203 is a cylindrical fixing rod; the second fixing part 204 includes: a second driving member 205, a bidirectional threaded rod 206, two second sliders 207, and two clamping blocks 208. The second driving member 205 is connected to the first slider 202. One end of the bidirectional threaded rod 206 is rotatably connected to the first slider 202, and the other end of the bidirectional threaded rod 206 is connected to the driving end of the second driving member 205. The second sliders 207 pass through the bidirectional threaded rod 206 and are threadedly connected to it. The clamping blocks 208 are connected to the second sliders 207. The second driving member 205 is used to drive the two clamping blocks 208. The relative motion or the opposite motion; the longitudinal cross-sectional shape of the clamping block 208 is arc-shaped, and a rubber pad 209 is provided on the side of the clamping block 208 away from the second slider 207; wherein: the clamping block 208 and the second slider 207 correspond one-to-one; the fixing mechanism 2 also includes: a fourth driving member 210 and a rotating block 211, the fourth driving member 210 is located on the side of the rotating block 211 close to the first slider 202, and the driving end of the fourth driving member 210 is connected to the rotating block 211, the rotating block 211 is rotatably connected to the first slider 202, and the first fixing part 203 and the second fixing part 204 are both installed on the side of the rotating block 211 away from the first slider 202. Therefore, the cylindrical fixing rod can be easily inserted into the high-pressure common rail injector; through the relative or opposite movement of the two clamping blocks 208, it can be ensured that the center point of the two clamping blocks 208 always coincides with the axis of the first fixing part 203. Thus, no matter how the two clamping blocks 208 move, the two clamping blocks 208 can always clamp the injector simultaneously, and there will be no situation where one clamping block 208 is in contact with the injector while the other clamping block 208 is not in contact with the injector; the rubber pad 209 can ensure that the clamping blocks 208 are in direct contact with the injector, thereby avoiding damage to the outside of the injector caused by the clamping blocks 208; during the deburring process of the high-pressure common rail injector, when the injector is inserted into the fixing groove, the double limiting effect of the first slider 202 and the first fixing part 203 further improves the fixing effect of the injector.

[0047] Specifically, if the two clamping blocks 208 cannot clamp the fuel injector at the same time, the fuel injector will move relative to the first fixing part 203, which will affect the removal of burrs on the outside of the fuel injector.

[0048] It should be noted that the direction of relative or opposite movement of the two clamping blocks 208 is along the X-axis.

[0049] For example, the second drive component 205 uses a motor, and the fourth drive component 210 uses a motor.

[0050] In this embodiment, two burr removal mechanisms 3 are provided, which are arranged opposite to each other and located in the area below the fuel injector. Each burr removal mechanism 3 includes a drive assembly 301, a grinding section 302, and a blowing section 303. Both the grinding section 302 and the blowing section 303 are connected to the drive end of the drive assembly 301, and the blowing section 303 is located on the side of the grinding section 302 away from the base 1. The drive assembly 301 is used to drive the grinding section 302 towards or away from the base 1. The drive assembly 301 moves the blower 303 to one side away from the fuel injector and drives the grinding part 302 to rotate around its own axial direction. The grinding part 302 is used to remove burrs from the outside of the fuel injector. The drive assembly 301 drives the blower 303 to move towards or away from the fuel injector. The blower 303 blows out cold air, which acts on the grinding part 302 and the fuel injector to cool the contact area between them and clean the removed burrs. The drive assembly 301 includes a first drive unit 304 and a second drive unit 305. The first drive unit 304 is connected to the base 1. The air blowing unit 303 and the second drive unit 305 are both mounted on the telescopic ends of the first drive unit 304. The grinding unit 302 is mounted on the drive end of the second drive unit 305. The first drive unit 304 is used to drive the grinding unit 302 and the air blowing unit 303 to move towards or away from the fuel injector. The second drive unit 305 is used to drive the grinding unit 302 to rotate around itself. The first drive unit 304 includes a third drive member 306 and a fixed block 307. The third drive member 306 is connected to the base 1, and the fixed block 307 is connected to the telescopic end of the third drive member 306. The blowing unit 303 and the second drive unit 305 are both connected to the fixed block 307. One end of the grinding unit 302 is rotatably connected to the fixed block 307, the second drive unit 305 is connected to the fixed block 307, and the driving end of the fixed block 307 is connected to the grinding unit 302. Therefore, the two burr removal mechanisms 3 work together to remove burrs from the fuel injector, thereby improving the burr removal efficiency. The burr removal mechanism 3 is located in the lower area of ​​the fuel injector, so that the burr removal action is located below the fuel injector. The removed burrs can fall off under the action of gravity and will not remain attached to the surface of the fuel injector, thereby further improving the burr removal effect. The cold air blown out by the blowing unit 303 can, on the one hand, cool down the contact area between the grinding unit 302 and the fuel injector to avoid overheating due to the interaction between the grinding unit 302 and the fuel injector, which would affect the burr removal effect, thereby further improving the burr removal effect. On the other hand, the blown cold air can add an extra force to the removed burrs. Under the combined action of the blowing force and gravity, the efficiency and effect of the removed burrs falling off can be accelerated, thereby further improving the burr removal efficiency and effect.

[0051] Specifically, the grinding section 302 is a grinding roller; the blowing section 303 is connected to a fan (not shown in the figure) through a ventilation pipe (not shown in the figure), the fan is started, and with the cooperation of the ventilation pipe, the blowing section 303 blows air.

[0052] It should be noted that:

[0053] 1. The first drive unit 304 drives the grinding unit 302 and the blowing unit 303 to move towards or away from the fuel injector in the direction of moving along the X-axis.

[0054] Second, the second drive unit 305 drives the grinding unit 302 to move in the direction of its own axial direction: rotating along the Y-axis.

[0055] For example, the second drive unit 305 uses an electric motor, and the third drive unit 306 uses a cylinder.

[0056] In this embodiment, the system further includes a slag-collecting plate 4 and a support plate 5. The slag-collecting plate 4 is embedded in the base 1 and is used to absorb burrs. The support plate 5 penetrates the base 1 and is slidably connected to the base 1. The support plate 5 is located on the side of the slag-collecting plate 4 away from the burr removal mechanism 3, and is used to drive the slag-collecting plate 4 to move towards or away from the burr removal mechanism 3. Thus, the slag-collecting plate 4 can absorb and collect fallen burrs to prevent them from splashing around and facilitate subsequent burr cleaning; the support plate 5 can be removed from the base 1 to facilitate subsequent burr cleaning.

[0057] Specifically, the slag collection plate 4 uses magnets, which can adsorb the removed burrs so that they do not fly around.

[0058] The processing procedure of the high-pressure common rail fuel injector nozzle (i.e., the removal of burrs on the outer side of the fuel injector) of this utility model is as follows: First, the first slider 202 is located on the side away from the burr removal mechanism 3, and the high-pressure common rail fuel injector to be deburred is fixed by the first fixing part 203 and the second fixing part 204; then, the first slider 202 is driven to move closer to the burr removal mechanism 3 by the first driving member 201, and then the grinding part 302 and the blowing part 303 are driven to move closer to the fuel injector by the third driving member 306, so that the grinding part 302 contacts the outer side of the fuel injector; then, the second driving part 305, the fourth driving member 210 and the blowing part 303 are activated, the second driving part 305 drives the grinding part 302 to rotate around its own axial direction, and the fourth driving member 210 drives the fuel injector to rotate around its own axial direction. The direction is rotated so that the grinding part 302 can remove burrs from various positions on the outside of the fuel injector during the rotation process. The blowing part 303 blows air to cool the contact position between the grinding part 302 and the fuel injector. With the help of the burrs' own gravity, the removed burrs are blown off onto the slag collection plate 4. Finally, the blowing part is closed, and the grinding part 302 and the blowing part 303 are returned to their initial positions by the third driving member 306 (i.e., the grinding part 302 is no longer in contact with the fuel injector). The first slider 202 is returned to its initial position by the first driving member 201 (i.e., located on the side away from the burr removal mechanism 3) so that the fuel injector after the burrs have been removed can be removed. The slag collection plate 4 is removed from the base 1 by the support plate 5 to clean the burrs adsorbed on the slag collection plate 4. The removal of burrs on the outside of the high-pressure common rail fuel injector is thus completed.

[0059] In summary, this utility model uses the insertion-type fixing of the first fixing part 203 and the clamping-type fixing of the second fixing part 204 to jointly fix the high-pressure common rail injector. Compared with the existing handheld method, this method has a simple structure and is easy to operate. The dual fixing method of insertion-type fixing and clamping-type fixing can ensure that the injector remains stable and does not shake. This operation can ensure that the contact between the burr removal mechanism 3 and the outside of the injector is neither too light nor too heavy, thereby improving the burr removal effect on the outside of the injector. In addition, the two second fixing parts 204 can spray from both ends of the injector. The nozzle is clamped and fixed to ensure that the end of the nozzle that needs to be deburred (i.e. the end of the nozzle away from the first slider 202) remains stable and does not shift, so as to better fix the nozzle and further improve the removal effect of burrs on the outside of the nozzle; the first driving member 201 drives the first slider 202 to move closer to or away from the first fixing part 203 and the second fixing part 204 (i.e. the burr removal mechanism 3) so that there is enough space between the fixing mechanism 2 and the burr removal mechanism 3 for the installation and removal of the high-pressure common rail nozzle to be deburred.

[0060] The above description is an explanation of the present utility model and not a limitation thereof. The scope of the present utility model is defined by the claims. Within the protection scope of the present utility model, any form of modification may be made.

Claims

1. A processing apparatus for the nozzle orifice of a high-pressure common rail fuel injector, characterized in that, include: Base (1), and Fixing mechanism (2), said fixing mechanism (2) includes: The system comprises a first driving member (201), a first slider (202), a first fixing part (203), and two second fixing parts (204). The first driving member (201) is connected to the base (1), and the first slider (202) is slidably connected to the base (1). The telescopic end of the first driving member (201) is connected to the first slider (202). The first fixing part (203) and the second fixing parts (204) are both installed on the side of the first slider (202) away from the first driving member (201). The first driving member (201) is used to drive the first slider (202) to move towards or away from the first fixing part (203) and the second fixing parts (204). The first fixing part (203) is used to insert and fix the nozzle to be deburred. The two second fixing parts (204) clamp and fix the nozzle at both ends of the outer side of the nozzle. The burr removal mechanism (3) is connected to the base (1) and is located on the side away from the first slider (202) of the first fixing part (203) and the second fixing part (204). The burr removal mechanism (3) is used to remove burrs from the outside of the fuel injector.

2. The processing apparatus for the nozzle orifice of a high-pressure common rail fuel injector as described in claim 1, characterized in that: The first fixing part (203) is a cylindrical fixing rod.

3. The processing apparatus for the nozzle orifice of a high-pressure common rail injector as described in claim 1, characterized in that: The second fixing part (204) includes: The device comprises a second driving member (205), a bidirectional threaded rod (206), two second sliders (207), and two clamping blocks (208). The second driving member (205) is connected to the first slider (202). One end of the bidirectional threaded rod (206) is rotatably connected to the first slider (202), and the other end of the bidirectional threaded rod (206) is connected to the driving end of the second driving member (205). The second slider (207) passes through the bidirectional threaded rod (206) and is threadedly connected to the bidirectional threaded rod (206). The clamping blocks (208) are connected to the second sliders (207). The second driving member (205) is used to drive the two clamping blocks (208) to move relative to each other or towards each other. The longitudinal cross-sectional shape of the clamping block (208) is arc-shaped, and a rubber pad (209) is provided on the side of the clamping block (208) away from the second slider (207); Wherein: the clamping block (208) corresponds one-to-one with the second slider (207).

4. The processing apparatus for the nozzle orifice of a high-pressure common rail fuel injector as described in claim 1, characterized in that: There are two burr removal mechanisms (3), which are arranged opposite to each other and located in the area below the fuel injector.

5. The processing apparatus for the nozzle orifice of a high-pressure common rail fuel injector as described in claim 1, characterized in that: The burr removal mechanism (3) includes: The system comprises a drive assembly (301), a polishing section (302), and a blowing section (303). The polishing section (302) and the blowing section (303) are both connected to the drive end of the drive assembly (301), and the blowing section (303) is located on the side of the polishing section (302) away from the base (1). The drive assembly (301) is used to drive the polishing section (302) to move towards or away from the fuel injector, and to drive the polishing section (302). Rotating around its own axial direction, the grinding part (302) is used to remove burrs on the outside of the fuel injector. The drive assembly (301) is used to drive the blowing part (303) to move closer to or further away from the fuel injector. The blowing part (303) is used to blow out cold air, which acts on the grinding part (302) and the fuel injector to cool down the contact area between the grinding part (302) and the fuel injector and clean the removed burrs.

6. The processing apparatus for the nozzle orifice of a high-pressure common rail injector as described in claim 5, characterized in that: The driving component (301) includes: The first drive unit (304) and the second drive unit (305) are connected to the base (1). The air blowing unit (303) and the second drive unit (305) are both mounted on the telescopic end of the first drive unit (304). The grinding unit (302) is mounted on the drive end of the second drive unit (305). The first drive unit (304) is used to drive the grinding unit (302) and the air blowing unit (303) to move closer to or further away from the fuel injector. The second drive unit (305) is used to drive the grinding unit (302) to rotate around its own axial direction.

7. The processing apparatus for the nozzle orifice of a high-pressure common rail fuel injector as described in claim 6, characterized in that: The first drive unit (304) includes: The third driving member (306) and the fixing block (307) are connected to the base (1), and the fixing block (307) is connected to the telescopic end of the third driving member (306). The blowing part (303) and the second driving part (305) are both connected to the fixing block (307). One end of the polishing part (302) is rotatably connected to the fixing block (307), the second driving part (305) is connected to the fixing block (307), and the driving end of the fixing block (307) is connected to the polishing part (302).

8. The processing apparatus for the nozzle orifice of a high-pressure common rail fuel injector as described in claim 1, characterized in that: Also includes: Slag collection plate (4), which is embedded in the base (1), is used to adsorb burrs.

9. The processing apparatus for the nozzle orifice of a high-pressure common rail injector as described in claim 8, characterized in that: Also includes: A support plate (5) passes through the base (1) and is slidably connected to the base (1). The support plate (5) is located on the side of the slag collection plate (4) away from the burr removal mechanism (3). The support plate (5) is used to drive the slag collection plate (4) to move towards or away from the burr removal mechanism (3).

10. The processing apparatus for the nozzle orifice of a high-pressure common rail injector as described in claim 1, characterized in that: The fixing mechanism (2) also includes: A fourth driving member (210) and a rotating block (211) are provided. The fourth driving member (210) is located on the side of the rotating block (211) close to the first slider (202), and the driving end of the fourth driving member (210) is connected to the rotating block (211). The rotating block (211) is rotatably connected to the first slider (202). The first fixing part (203) and the second fixing part (204) are both installed on the side of the rotating block (211) away from the first slider (202).

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