Oxygen pump shell abrasive flow polishing machine

Abstract

The utility model relates to the technical field of polishing, in particular to an oxygen pump shell abrasive flow polishing machine which comprises a machine frame and further comprises a polishing mechanism, and a supporting mechanism used for pushing the polishing mechanism is arranged on the rear side of the machine frame. An oxygen pump shell is fixed through an upper shell, a fixing plate and a lower shell, then the oxygen pump shell is inserted into a pipe opening of the oxygen pump shell through a flow limiting base, and then abrasive particle flow is alternately pushed through an upper polishing barrel and an upper pressing base on the upper side and the lower side of the upper shell and an upper polishing barrel and a lower polishing barrel on the lower side of the lower shell; immediately, the oxygen pump shell is ground and polished through abrasive particle flow flowing alternately, a pushing hydraulic cylinder is used for driving a pushing frame to move front and back to enable two sets of supporting rods at the front end of a pushing base to be opened or closed, and therefore the two supporting bases get close to each other and get away from each other to clamp and fix a fixing mechanism; and the fixing mechanism is prevented from translating to influence polishing treatment operation.

Description

Technical Field

[0001] The utility model relates to the technical field of polishing, in particular to an abrasive flow polishing machine for an oxygen pump housing. Background Art

[0002] Extrusion grinding and polishing (also known as abrasive flow polishing) is a process in which a viscoelastic polymer is used as a carrier and elastic hard flowing abrasive grains are used as the processing medium. The grinding material reaches the surface to be processed under pressure to achieve the purpose of polishing; abrasive processing improves the surface quality by removing micro-protrusions on the surface of the workpiece with abrasive grains, belonging to ultra-precision processing. Compared with traditional grinding processing, extrusion grinding and polishing does not have problems such as vibration of the processing platform and chatter of the tool, has no grinding waste liquid, is green and environmentally friendly, and has a wide processing range, being almost not limited by the shape of the workpiece. It can be used to remove burrs, polish the surface of the workpiece and chamfer the edges, especially suitable for processing difficult-to-reach surfaces such as those with complex inner surfaces; however, for the polishing of the oxygen pump housing, the existing abrasive flow polishing machines can only polish the outside or inside of the oxygen pump housing unidirectionally, and cannot polish both the inside and outside sides of the oxygen pump housing simultaneously. Moreover, unidirectional polishing is time-consuming and reduces the polishing speed of the oxygen pump housing. Summary of the Utility Model

[0003] The purpose of the utility model is to provide an abrasive flow polishing machine for an oxygen pump housing to solve the above problems.

[0004] The utility model realizes the above purpose through the following technical solutions:

[0005] An abrasive flow polishing machine for an oxygen pump housing includes a frame, and also includes a polishing mechanism. A support mechanism for pushing the polishing mechanism forward is provided at the rear of the frame;

[0006] The polishing mechanism includes an upper polishing cylinder. A lower polishing cylinder is provided below the upper polishing cylinder. An upper pressure seat is slidably connected inside the upper polishing cylinder. An upper hydraulic cylinder is provided on one side of the upper polishing cylinder close to the frame. A lower pressure seat is slidably connected inside the lower polishing cylinder. A lower hydraulic cylinder is provided on one side of the lower polishing cylinder close to the frame. The telescopic part of the upper hydraulic cylinder, the end of the upper pressure seat extending out of the upper polishing cylinder, and the end of the lower pressure seat far from the lower polishing cylinder and the telescopic part of the lower hydraulic cylinder are all connected through a pressure plate;

[0007] The support mechanism includes a pushing frame. The pushing frame is located on both sides of the upper end of the frame. Two pushing hydraulic cylinders for driving it to move forward and backward are provided inside the pushing frame. Pushing seats are fixedly connected to the front ends on both sides of the pushing frame. Symmetrically arranged struts are rotatably connected to the front ends of the pushing seats. The front ends of the two struts are rotatably connected to support seats. A fixing mechanism for limiting the oxygen pump housing is provided between the two support seats.

[0008] Preferably, the fixing mechanism includes a lower housing, a fixing plate is fixed on the upper side of the lower housing, an upper housing is fixed on the upper side of the fixing plate, and a current-limiting seat for inserting into the pipe orifice of the oxygen pump housing is fixed at one end of the upper housing protruding.

[0009] Preferably, abrasive flow inlet holes corresponding to each other are formed on both the upper housing and the lower housing, and an insertion hole for facilitating its insertion is formed on the upper housing at the position of the current-limiting seat.

[0010] Preferably, an annular pressing plate is fixed inside the upper housing at the position of the abrasive flow inlet hole, and an elastic ring for pressing the oxygen pump housing is provided at the bottom of the annular pressing plate.

[0011] Preferably, columns for inserting struts are fixed on both the front and rear sides of the support seat, and notches are formed at positions corresponding to the abrasive flow inlet.

[0012] Preferably, discharge ports corresponding to the abrasive flow inlet are formed on both the upper polishing cylinder and the lower polishing cylinder, and the upper polishing cylinder is fixedly connected to the upper support seat, and the lower polishing cylinder is fixedly connected to the lower support seat.

[0013] The beneficial effects compared with the prior art are as follows:

[0014] 1. The oxygen pump housing is fixed by the upper housing, the fixing plate and the lower housing, then the current-limiting seat is inserted into the pipe orifice of the oxygen pump housing, and then the abrasive flow is alternately pushed by the upper polishing cylinder, the upper pressing seat, the lower polishing cylinder and the lower polishing cylinder on the upper and lower sides of the upper housing and the lower housing, and then the oxygen pump housing is polished by the alternately flowing abrasive flow;

[0015] 2. The front and rear movement of the push frame is driven by the push hydraulic cylinder to open or combine the two struts at the front end of the push seat, so as to realize the clamping and fixing of the two support seats approaching and separating from each other for the fixing mechanism, and prevent the fixing mechanism from translating and affecting the polishing operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention, and those of ordinary skill in the art can also obtain other drawings based on these drawings without creative efforts.

[0017] Figure 1 is a schematic structural diagram of an abrasive flow polishing machine for an oxygen pump housing according to the present invention;

[0018] Figure 2 is a cross-sectional view of an abrasive flow polishing machine for an oxygen pump housing according to the present invention;

[0019] Figure 3It is a partial part drawing of the frame of a kind of abrasive flow polishing machine for the oxygen pump housing of the present utility model;

[0020] Figure 4 It is a partial part drawing of the lower shell of a kind of abrasive flow polishing machine for the oxygen pump housing of the present utility model;

[0021] Figure 5 It is a partial part drawing of the annular pressing plate and the elastic ring of a kind of abrasive flow polishing machine for the oxygen pump housing of the present utility model;

[0022] Figure 6 It is a mating drawing of the flow limiting seat and the pipe orifice of the oxygen pump housing of a kind of abrasive flow polishing machine for the oxygen pump housing of the present utility model;

[0023] Figure 7 It is a partial part drawing of the support seat of a kind of abrasive flow polishing machine for the oxygen pump housing of the present utility model;

[0024] Figure 8 It is a partial part drawing of the support mechanism of a kind of abrasive flow polishing machine for the oxygen pump housing of the present utility model.

[0025] The description of the reference numerals is as follows:

[0026] 1. Fixing mechanism; 2. Polishing mechanism; 3. Support mechanism; 4. Frame; 11. Upper shell; 12. Fixed plate; 13. Lower shell; 14. Flow limiting seat; 15. Annular pressing plate; 16. Elastic ring; 21. Upper polishing cylinder; 22. Upper pressing seat; 23. Upper hydraulic cylinder; 24. Lower polishing cylinder; 25. Lower pressing seat; 26. Lower hydraulic cylinder; 31. Thrust frame; 32. Thrust hydraulic cylinder; 33. Thrust seat; 34. Support rod; 35. Support seat. Specific embodiments

[0027] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0028] The present utility model will be further described below with reference to the accompanying drawings:

[0029] As Figures 1-8 shown, a kind of abrasive flow polishing machine for the oxygen pump housing includes a frame 4, and also includes a polishing mechanism 2. A support mechanism 3 for pushing the polishing mechanism 2 is arranged at the rear side of the frame 4;

[0030] In this embodiment: The polishing mechanism 2 includes an upper polishing cylinder 21. A lower polishing cylinder 24 is provided below the upper polishing cylinder 21. An upper pressing seat 22 is slidably connected inside the upper polishing cylinder 21. An upper hydraulic cylinder 23 is provided on one side of the upper polishing cylinder 21 close to the frame 4. A lower pressing seat 25 is slidably connected inside the lower polishing cylinder 24. A lower hydraulic cylinder 26 is provided on one side of the lower polishing cylinder 24 close to the frame 4. The telescopic part of the upper hydraulic cylinder 23, the end of the upper pressing seat 22 extending out of the upper polishing cylinder 21, and the telescopic part of the lower hydraulic cylinder 26 at the end of the lower pressing seat 25 away from the lower polishing cylinder 24 are all connected by a pressing plate. The telescopic part of the upper hydraulic cylinder 23 drives the upper pressing seat 22 to move into the upper polishing cylinder 21 through the pressing plate, and then the upper pressing seat 22 moves downward to press the abrasive grains inside the upper polishing cylinder 21 into the fixing mechanism 1. When the inside of both the fixing mechanism 1 and the oxygen pump housing is filled with the abrasive grain flow, at this time, the abrasive grain flow in the fixing mechanism 1 and the oxygen pump housing will move into the lower polishing cylinder 24. At this time, the lower pressing seat 25 inside the lower polishing cylinder 24 will move downward, and at the same time, the telescopic part of the lower hydraulic cylinder 26 extends downward.

[0031] In this embodiment: The supporting mechanism 3 includes a pushing frame 31. The pushing frame 31 is located on both sides at the upper end of the frame 4. Two pushing hydraulic cylinders 32 for driving it to move back and forth are provided inside the pushing frame 31. Pushing seats 33 are fixedly connected to the front ends on both sides of the pushing frame 31. The front ends of the pushing seats 33 are rotatably connected with supporting rods 34 that are symmetrically arranged up and down. The front ends of the two supporting rods 34 are rotatably connected with a supporting seat 35. A fixing mechanism 1 for limiting the oxygen pump housing is provided between the two supporting seats 35. When the telescopic part of the pushing hydraulic cylinder 32 drives the pushing frame 31 and the pushing seat 33 to move forward, the two supporting rods 34 at the front end of the pushing seat 33 open outwards, and then push the upper and lower supporting seats 35 away from each other, and then drive the upper polishing cylinder 21 and the lower polishing cylinder 24 to move away from each other, so as to disengage from the support and clamping of the fixing mechanism 1. On the contrary, the fixing mechanism 1 is clamped and fixed by the two supporting seats 35.

[0032] In this embodiment: The fixing mechanism 1 includes a lower shell 13. A fixing plate 12 is fixed on the upper side of the lower shell 13. An upper shell 11 is fixed on the upper side of the fixing plate 12. One end of the upper shell 11 that protrudes is fixed with a current-limiting seat 14 for inserting into the pipe orifice of the oxygen pump housing. Abrasive flow inlet holes corresponding to each other are provided on both the upper shell 11 and the lower shell 13. And the upper shell 11 is provided with an insertion hole at the position of the current-limiting seat 14 for its convenient insertion. An annular pressing plate 15 is fixed inside the upper shell 11 at the position of the abrasive flow inlet hole. An elastic ring 16 for pressing the oxygen pump housing is provided at the bottom of the annular pressing plate 15. Pillars for inserting the support rods 34 are fixed on both the front and rear sides of the support seat 35. Notch openings corresponding to the abrasive flow inlet are provided at the positions of the support seat 35 corresponding to the abrasive flow inlet. Discharge ports corresponding to the abrasive flow inlet are provided on both the upper polishing cylinder 21 and the lower polishing cylinder 24. And the upper polishing cylinder 21 is fixedly connected to the upper support seat 35, and the lower polishing cylinder 24 is fixedly connected to the lower support seat 35. The lower side of the oxygen pump housing is fixed by the fixing plate 12 and the lower shell 13. At the same time, the annular pressing plate 15 and the elastic ring 16 in the upper shell 11 are pressed against the upper side of the oxygen pump housing, and then the oxygen pump housing is fixed.

[0033] Working principle: When in use, first open the upper shell 11 and the fixing plate 12, then buckle the oxygen pump housing on the lower shell 13, and fix the oxygen pump housing buckled on the lower shell 13. Then buckle the upper shell 11 on the top of the fixing plate 12, and use the annular pressing plate 15 inside the upper shell 11 to press the elastic ring 16 against the upper side of the oxygen pump housing, and then the fixation of the oxygen pump housing is completed;

[0034] Subsequently, the telescopic parts of the two jacking hydraulic cylinders 32 drive the jacking frame 31 to move forward. By the movement of the jacking frame 31, the two support rods 34 are spread outwards. Then the two groups of spread support rods 34 move the two support seats 35 away from each other. Then the two support seats 35 push the upper polishing cylinder 21 and the lower polishing cylinder 24 away from each other. Then place the fixing mechanism 1 with the oxygen pump housing fixed on the lower support seat 35. Then the telescopic part of the jacking hydraulic cylinder 32 extends and pushes the jacking frame 31 to move backward. Then drive the two support seats 35 to approach each other through the jacking seat 33 and the support rods 34. Then clamp and fix the fixing mechanism 1 through the two support seats 35. At the same time, the discharge hole of the upper polishing cylinder 21 is also made to correspond to the inlet hole of the upper shell 11, and the inlet hole of the lower shell 13 also corresponds to the discharge hole of the lower polishing cylinder 24. Then insert the current-limiting seat 14 into the insertion hole of the upper shell 11. Then make the end of the current-limiting seat 14 extending into the upper shell 11 insert into the pipe orifice of the oxygen pump housing, so as to reduce the cross-section of the abrasive flow passing through the pipe orifice of the oxygen pump housing to increase the friction force;

[0035] At this time, the telescopic part of the upper hydraulic cylinder 23 drives the upper pressing seat 22 to move upward into the interior of the upper polishing cylinder 21 through the pressing plate, and then presses the abrasive flow in the upper polishing cylinder 21 into the interior of the upper shell 11. Then, the abrasive flow enters the interior of the oxygen pump housing and flows out of the oxygen pump housing from its nozzle position to between the oxygen pump housing and the lower shell 13. Subsequently, the abrasive flow passes through the lower shell 13 and enters the interior of the lower polishing cylinder 24. At this time, the lower pressing seat 25 moves downward to collect the abrasive flow into the lower polishing cylinder 24; after all the abrasive flow in the upper polishing cylinder 21 is completely pressed out, the telescopic part of the lower hydraulic cylinder 26 drives the lower pressing seat 25 upward through the pressing plate. Then, the upward movement of the lower pressing seat 25 pushes the abrasive flow back into the interior of the lower shell 13. Then, the abrasive flow in the lower shell 13 flows into the interior of the oxygen pump housing from the outside of the oxygen pump housing through its nozzle, and then is re-introduced into the interior of the upper polishing cylinder 21 through the upper shell 11. Subsequently, the above operations are repeated to polish the oxygen pump housing.

[0036] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed.

Claims

1. An abrasive flow polishing machine for an oxygen pump housing, comprising a frame (4), characterized in that: It further includes a polishing mechanism (2), and a support mechanism (3) for pushing the polishing mechanism (2) is provided at the rear side of the frame (4); The polishing mechanism (2) includes an upper polishing cylinder (21), a lower polishing cylinder (24) is provided below the upper polishing cylinder (21), an upper pressing seat (22) is slidably connected inside the upper polishing cylinder (21), an upper hydraulic cylinder (23) is provided on one side of the upper polishing cylinder (21) close to the frame (4), a lower pressing seat (25) is slidably connected inside the lower polishing cylinder (24), a lower hydraulic cylinder (26) is provided on one side of the lower polishing cylinder (24) close to the frame (4), and the telescopic part of the upper hydraulic cylinder (23) and the end of the upper pressing seat (22) extending out of the upper polishing cylinder (21) and the telescopic part of the lower hydraulic cylinder (26) at the end of the lower pressing seat (25) away from the lower polishing cylinder (24) are all connected by a pressing plate; The support mechanism (3) includes a pushing frame (31), the pushing frame (31) is located on both sides of the upper end of the frame (4), two pushing hydraulic cylinders (32) for driving it to move back and forth are provided inside the pushing frame (31), pushing seats (33) are fixedly connected to the front positions on both sides of the pushing frame (31), and symmetrically arranged struts (34) are rotatably connected to the front ends of the pushing seats (33) up and down. A fixing mechanism (1) for limiting the oxygen pump housing is provided between the two support seats (35).

2. The abrasive flow polishing machine for an oxygen pump housing according to claim 1, characterized in that: The fixing mechanism (1) includes a lower shell (13), a fixing plate (12) is fixed on the upper side of the lower shell (13), an upper shell (11) is fixed on the upper side of the fixing plate (12), and a flow limiting seat (14) for inserting into the pipe orifice of the oxygen pump housing is fixed at the protruding end of the upper shell (11).

3. The abrasive flow polishing machine for an oxygen pump housing according to claim 2, characterized in that: Abrasive flow inlet holes corresponding to each other are opened on both the upper shell (11) and the lower shell (13), and an insertion hole for facilitating its insertion is opened on the upper shell (11) at the position of the flow limiting seat (14).

4. An abrasive flow polishing machine for an oxygen pump housing according to claim 3, wherein: An annular pressing plate (15) is fixed inside the upper shell (11) at the abrasive flow inlet hole, and an elastic ring (16) for pressing the oxygen pump housing is provided at the bottom of the annular pressing plate (15).

5. An abrasive flow polishing machine for an oxygen pump housing according to claim 3, characterized in that: Columns for inserting the struts (34) are fixed on both the front and rear sides of the support seat (35), and notches are opened at the positions of the support seat (35) corresponding to the abrasive flow inlet.

6. The abrasive flow polishing machine for an oxygen pump housing according to claim 5, wherein: Outlet ports corresponding to the abrasive flow inlet are opened on both the upper polishing cylinder (21) and the lower polishing cylinder (24), and the upper polishing cylinder (21) is fixedly connected to the upper support seat (35), and the lower polishing cylinder (24) is fixedly connected to the lower support seat (35).

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