Throttle ring small hole deburring device based on abrasive particle flow

Abstract

The utility model discloses a throttling ring small hole deburring device based on abrasive flow. The throttling ring small hole deburring device is mainly composed of an abrasive propeller, an inlet injection panel, an inlet end lining, an outlet end pressing plate, a throttling ring installation lining, an outlet end lining and other components. When the deburring device is used, firstly, abrasive particles are loaded into the abrasive propeller, then the abrasive particles are squeezed into the inlet end lining through the abrasive propeller and then flow into the small hole of the throttling ring, abrasive particle flow is formed through abrasive materials to grind the hole, and therefore the deburring effect is achieved. The deburring device is simple in design principle and structure and convenient to operate, solves the problem that the requirement that a hole opening keeps a sharp edge cannot be met by deburring through a scraper and the like at present, and can conveniently, simply and quickly remove burrs generated after the small hole of the throttling ring is machined, and the hole opening keeps the sharp edge.

Description

Technical Field

[0001] This utility model relates to a deburring device for small holes of throttling coils based on abrasive flow, used for deburring small holes of throttling coils and keeping the hole opening sharp. It belongs to the field of mechanical manufacturing technology and can also be used for deburring small holes of parts in other fields. Background Technology

[0002] In the field of machining and manufacturing, deburring small holes in parts is a basic processing requirement. Currently, there are various deburring processes, such as manual scraping, electrochemical deburring, and ultrasonic deburring, as well as various specialized deburring equipment. However, deburring small holes in some parts, where the openings cannot be chamfered, is a challenge, as is the case with throttling coils. Traditional deburring methods are often insufficient and can damage the openings to some extent. Existing specialized deburring equipment that meets these requirements is too expensive. For throttling coils, which are small in size and produced in low quantities, using specialized deburring equipment is neither cost-effective nor efficient. To solve these problems, reduce processing costs, and ensure deburring quality, there is an urgent need to design a simple deburring device. Summary of the Invention

[0003] This invention aims to provide a deburring device for throttling ring orifices based on abrasive flow, which can meet the requirement of maintaining a sharp edge at the orifice opening while removing burrs from the throttling ring orifice. It has a wide range of applications, simple structure, convenient operation, and low cost.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] The deburring device for throttling rings based on abrasive flow includes:

[0006] An abrasive propulsion device, the abrasive propulsion device including an injection port through which abrasive particles filled inside the abrasive propulsion device are ejected;

[0007] An inlet injection panel is mounted on one end of the abrasive thruster with an injection port. The inlet injection panel has a first through hole, and the injection port of the abrasive thruster is inserted into the first through hole.

[0008] An inlet end bushing is installed in the first through hole of the inlet injection panel and is in close contact with the end face of the injection port of the abrasive propeller.

[0009] The outlet end pressure plate is fitted and assembled with the inlet injection panel. The outlet end pressure plate and the end face corresponding to the inlet injection panel have a throttling ring mounting groove. The bottom surface of the throttling ring mounting groove has a bushing hole. The bottom surface of the bushing hole has an abrasive channel hole that penetrates the end face of the outlet end pressure plate. The throttling ring mounting groove, bushing hole, abrasive channel hole and first through hole are coaxial.

[0010] A throttle ring mounting bushing is installed in the throttle ring mounting groove of the outlet end pressure plate. The outer diameter of the throttle ring mounting bushing is equal to the inner diameter of the throttle ring mounting groove, and the inner diameter of the throttle ring mounting bushing is equal to the outer diameter of the throttle ring.

[0011] An outlet end bushing is installed in the bushing hole of the outlet end pressure plate.

[0012] A throttling ring installation space is formed between the inlet end bushing and the outlet end bushing, and within the inner diameter area of ​​the throttling ring installation bushing.

[0013] As one embodiment, the abrasive propulsion device mainly consists of a cylinder and a piston rod. One end of the cylinder has an injection port. The first axial end of the piston rod is slidably connected inside the cylinder, and the second axial end is located outside the cylinder. A sealing pair is formed between the circumferential surface of the first axial end of the piston rod and the inner wall of the cylinder. An abrasive filling space is formed between the first axial end of the piston rod and the injection port of the cylinder.

[0014] Alternatively, the abrasive propulsion device is an industrial injector.

[0015] As one embodiment, the end face of the inlet injection panel that is assembled with the abrasive propeller has an abrasive propeller positioning groove, which is connected to the first through hole, and the end of the abrasive propeller with the injection nozzle is installed in the abrasive propeller positioning groove.

[0016] As one embodiment, the end face of the inlet injection panel and the outlet end pressure plate that are fitted together has a blind hole, and the side wall of the blind hole is machined with an internal thread, and the bottom of the blind hole is connected to the first through hole.

[0017] The circumferential surface of the outlet end pressure plate is machined with an external thread that mates with the internal thread on the side wall of the blind hole. The outlet end pressure plate is installed in the blind hole of the inlet injection panel through the external thread and is fitted to the bottom of the blind hole.

[0018] Alternatively, the axial height of the throttle ring mounting bushing is less than the axial depth of the throttle ring mounting groove.

[0019] Compared with the prior art, this utility model first loads abrasive grains (as abrasives) into the abrasive pusher before use, and then the abrasive grains are squeezed into the bushing and flow into the small hole of the throttling ring through the abrasive pusher. The abrasive grains form an abrasive flow to grind the hole, thereby achieving the effect of deburring.

[0020] Compared with existing technologies, this utility model discloses a deburring device for throttling ring orifices based on abrasive flow. This device can maintain a sharp edge at the orifice opening while removing burrs from the throttling ring orifice. The device can meet the deburring requirements of throttling ring orifices of different specifications simply by replacing the bushing with one that matches the size of the throttling ring, making it highly adaptable. The device has a simple design principle, easy structure, convenient operation, and low cost. Attached Figure Description

[0021] Figure 1 This is a cross-sectional view of the deburring device for the throttling ring with small holes based on abrasive flow in this utility model;

[0022] In the figure: 1—cylinder; 2—piston push rod; 3—inlet injection panel; 4—outlet end pressure plate; 5—throttle ring mounting bushing; 6—outlet end bushing; 7—throttle ring; 8—inlet end bushing. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. However, it should not be construed that the scope of the subject matter of the present invention is limited to the following embodiments. Any modifications, substitutions and alterations made based on ordinary technical knowledge and conventional means in the art without departing from the above-described technical concept of the present invention are included within the scope of the present invention.

[0024] like Figure 1 As shown, the deburring device for the throttling ring small hole based on abrasive flow is mainly composed of coaxially assembled abrasive propeller, inlet injection panel 3, inlet end bushing 8, outlet end pressure plate 4, throttling ring mounting bushing 5, outlet end bushing 6 and other components.

[0025] Except for the abrasive propulsion unit, the other parts of the device can be manufactured using wear-resistant stainless steel through ordinary machining. The abrasive propulsion unit uses commercially available industrial syringes made of plastic or glass, or is machined from steel tubing. For example... Figure 1 As shown, the abrasive propulsion device includes a cylinder 1 and a piston rod 2. The lower end of the cylinder 1 has an injection port for abrasive grain injection. The lower end of the piston rod 2 forms a seal with the inner wall of the cylinder 1, and the space between the lower end of the piston rod 2 and the injection port of the cylinder 1 is used for loading abrasive grains. Figure 1 Multiple points are used instead of abrasive grains.

[0026] The inlet injection panel 3 is mounted on the end of the abrasive thruster with the injection nozzle. The inlet injection panel 3 has a first through hole, and the injection nozzle of the abrasive thruster is inserted into the first through hole. The end face of the inlet injection panel 3 where it is mounted with the abrasive thruster has an abrasive thruster positioning groove, which is connected to the first through hole. The end of the abrasive thruster with the injection nozzle is installed in the abrasive thruster positioning groove.

[0027] The inlet end bushing 8 is installed in the first through hole of the inlet injection panel 3 and is in close contact with the end face of the injection port of the abrasive propeller;

[0028] The outlet end pressure plate 4 is fitted and assembled with the inlet injection panel 3. A throttling ring mounting groove is opened on the end face of the outlet end pressure plate 4 corresponding to the end face of the inlet injection panel 3. A bushing hole is opened on the bottom surface of the throttling ring mounting groove. An abrasive channel hole is opened on the bottom surface of the bushing hole, penetrating the end face of the outlet end pressure plate 4. The throttling ring mounting groove, bushing hole, abrasive channel hole and the first through hole are coaxial. A blind hole is opened on the end face of the inlet injection panel 3 that is fitted and assembled with the outlet end pressure plate 4. An internal thread is machined on the side wall of the blind hole. The bottom of the blind hole is connected to the first through hole. An external thread is machined on the circumferential surface of the outlet end pressure plate 4 that mates with the internal thread on the side wall of the blind hole. The outlet end pressure plate 4 is installed in the blind hole of the inlet injection panel 3 through the external thread and is fitted and assembled with the bottom of the blind hole.

[0029] The throttle ring mounting bushing 5 is installed in the throttle ring mounting groove of the outlet end pressure plate 4. The outer diameter of the throttle ring mounting bushing 5 is equal to the inner diameter of the throttle ring mounting groove, and the inner diameter of the throttle ring mounting bushing 5 is equal to the outer diameter of the throttle ring. The axial height of the throttle ring mounting bushing 5 is less than the axial depth of the throttle ring mounting groove.

[0030] The outlet end bushing 6 is installed in the bushing hole of the outlet end pressure plate 4;

[0031] A throttling ring installation space is formed between the inlet bushing 8 and the outlet bushing 6, and within the inner diameter area of ​​the throttling ring installation bushing 5.

[0032] Before using the device, ensure that the abrasive propeller, inlet injection panel 3, inlet end bushing 8, outlet end pressure plate 4, throttling ring mounting bushing 5, and outlet end bushing 6 are coaxially assembled to ensure that the abrasive fluid ejected from the abrasive propeller nozzle is aligned with the small hole on the throttling ring 7.

[0033] When using this device, first place the outlet bushing 6 into the outlet pressure plate 4. Then, select a throttling ring mounting bushing 5 that matches the size and specifications of the throttling ring 7 (the part that needs to have its small hole burrs removed). Place the throttling ring mounting bushing 5 and the throttling ring 7 together into the throttling ring mounting groove of the outlet pressure plate 4. Place the inlet bushing 8 into the first through hole of the inlet injection panel 3. Then, align the inlet injection panel 3 with the outlet pressure plate 4 and tighten them using threaded connections. Finally, align the abrasive propeller filled with abrasive grains with the abrasive propeller positioning groove of the inlet injection panel 3, so that the injection nozzle of the abrasive propeller presses against the inlet bushing 8, and the deburring operation can then be performed.

[0034] To meet the deburring requirements of throttle rings 7 of different sizes and specifications, it is only necessary to replace the throttle ring mounting bushing 5 and install a mounting bushing that matches the size of the corresponding throttle ring 7 to achieve deburring. It has strong applicability and is relatively easy to operate.

[0035] During operation, different deburring times and pushing pressures are selected according to the size of the burrs on the throttling ring 7 until the burrs are completely removed. The operation is simple.

[0036] The above is the main concept of this utility model. Any deburring device for the throttling ring orifice designed based on the concept of this utility model falls within the protection scope of this utility model.

Claims

1. An abrasive flow based deburring device for orifice rings, characterized in that, The application relates to a grit flow based orifice deburring device. The grit flow based orifice deburring device comprises: a grit flow propeller, which comprises a jetting port through which grit filled in the grit flow propeller is jetted out; an inlet injection panel (3) assembled on one end of the grit flow propeller with the jetting port, the inlet injection panel (3) being provided with a first through hole, and the jetting port of the grit flow propeller being inserted into the first through hole; an inlet end bushing (8) installed in the first through hole of the inlet injection panel (3) and tightly fitted to the end surface of the jetting port of the grit flow propeller; and an outlet end pressing plate (4) assembled in close contact with the inlet injection panel (3), the outlet end pressing plate (4) being provided with an orifice ring mounting groove corresponding to the end surface of the inlet injection panel (3), the groove bottom surface of the orifice ring mounting groove being provided with a bushing hole, the hole bottom surface of the bushing hole being provided with a grit flow channel hole penetrating through the end surface of the outlet end pressing plate (4), and the orifice ring mounting groove, the bushing hole, the grit flow channel hole and the first through hole being coaxial; an orifice ring mounting bushing (5) installed in the orifice ring mounting groove of the outlet end pressing plate (4), the outer diameter of the orifice ring mounting bushing (5) being equal to the inner diameter of the orifice ring mounting groove, and the inner diameter of the orifice ring mounting bushing (5) being equal to the outer diameter of the orifice ring; and an outlet end bushing (6) installed in the bushing hole of the outlet end pressing plate (4). The orifice ring mounting space is formed in the inner diameter area of the orifice ring mounting bushing (5) between the inlet end bushing (8) and the outlet end bushing (6). The grit flow propeller mainly comprises a cylinder and a piston push rod, one end of the cylinder is provided with a jetting port, the axial first end of the piston push rod is slidably connected in the cylinder, the axial second end is located outside the cylinder, a sealing pair is formed between the circumferential surface of the axial first end of the piston push rod and the inner wall of the cylinder, and a grit filling space is formed between the axial first end of the piston push rod and the jetting port of the cylinder. The grit flow propeller is an industrial injector. The end surface of the inlet injection panel (3) assembled with the grit flow propeller is provided with a grit flow propeller positioning groove, the grit flow propeller positioning groove is communicated with the first through hole, and the end of the grit flow propeller with the jetting port is installed in the grit flow propeller positioning groove.

5. The grit flow based orifice deburring device according to claim 1, wherein: the end surface of the inlet injection panel (3) assembled with the outlet end pressing plate (4) is provided with a blind hole, the side wall of the blind hole is provided with an internal thread, and the hole bottom of the blind hole is communicated with the first through hole; the circumferential surface of the outlet end pressing plate (4) is provided with an external thread matched with the internal thread of the side wall of the blind hole, and the outlet end pressing plate (4) is installed in the blind hole of the inlet injection panel (3) through the external thread and is assembled in close contact with the hole bottom of the blind hole.

6. The grit flow based orifice deburring device according to claim 1, wherein: the axial height of the orifice ring mounting bushing (5) is smaller than the axial depth of the orifice ring mounting groove.

2. The abrasive particles flow-based deburring device of a restriction orifice according to claim 1, characterized in that: ​ 3. The abrasive particles flow-based deburring device of orifice restriction according to claim 1, wherein: ​ 4. The abrasive particles flow-based deburring device of orifice restriction according to claim 1, wherein: ​ ​ ​ ​ ​ ​

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