Single crystal aluminum oxide plunger rod cold pressing assembly jig

Abstract

The utility model discloses a single crystal aluminum oxide plunger rod cold pressing assembling jig which comprises an assembling assembly, and the assembling assembly comprises an assembling table, a through groove, a base, a connecting hole, a positioning seat and an electric cylinder. According to the utility model, the positioning column on the positioning seat is matched with the positioning hole of the matching part, so that the matching part is accurately positioned on the positioning seat, and the plunger rod body is limited by the positioning cylinder, so that the deviation during assembly is avoided, the plunger rod can be accurately inserted into the assembly hole of the matching part, and the assembly precision is improved; the bottom of the plunger rod can be prevented from being damaged due to impact force in the assembling process through a protective pad at the top of the top barrel; meanwhile, the buffer spring can absorb and disperse impact force generated by driving of the electric cylinder, the plunger rod is prevented from being damaged by too large pressure, the integrity and quality of the plunger rod are ensured, and the assembly quality is guaranteed; and by replacing related parts such as the positioning seat with the positioning barrels of different sizes and the top barrel, the plunger rod bodies of different models can be adapted, and the universality of the jig is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to plunger rod assembly technical field, concretely is a single crystal di-aluminum oxide plunger rod cold pressure assembly fixture. BACKGROUND

[0002] In industrial production, single crystal di-aluminum oxide plunger rod is widely used in various high-pressure, high-precision working environments due to its excellent performance, such as high hardness, wear resistance, chemical stability, etc. However, due to the characteristics of single crystal di-aluminum oxide material itself, it is hard and brittle, and the traditional assembly method is often difficult to meet the requirements of high precision and high stability during assembly.

[0003] Cold pressure assembly is a kind of assembly mode that exerts pressure on parts at room temperature to make them cooperate with each other. Compared with hot pressure assembly and other methods, cold pressure assembly does not need to heat the parts, avoiding the change of material performance caused by high temperature, and is especially suitable for the assembly of temperature-sensitive materials such as single crystal di-aluminum oxide. In this fixture, the plunger rod body is cold pressure assembled into the matching parts by the pressure provided by the electric cylinder, realizing high-precision assembly effect.

[0004] The current common plunger rod assembly method has many problems, for example, manual assembly not only has low efficiency, but also can not guarantee the consistency and precision of assembly, which can easily cause the plunger rod to loosen, leak and other problems during use. In addition, some existing assembly fixtures cannot effectively solve the key problems of positioning and buffering of single crystal di-aluminum oxide plunger rod during cold pressure assembly, which can easily damage the plunger rod during assembly, affecting product quality and service life. Therefore, a single crystal di-aluminum oxide plunger rod cold pressure assembly fixture is proposed. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a single crystal di-aluminum oxide plunger rod cold pressure assembly fixture to solve one of the problems in the above background technology.

[0006] The utility model is implemented by the following technical solutions: a single crystal di-aluminum oxide plunger rod cold pressure assembly fixture, comprising an assembly component, the assembly component comprises an assembly table, a through slot, a base, a connecting hole, a positioning seat, a mounting hole, a positioning cylinder, a top cylinder, a top block, a buffer spring, a connecting sleeve, a top rod and an electric cylinder.

[0007] The upper surface of the assembly table is provided with a through groove in the center, the inner side wall of the through groove is fixedly connected with a base, the upper surface of the base is provided with a connecting hole in the center, the inner side wall of the connecting hole is connected with a positioning seat, the upper surface of the positioning seat is provided with a mounting hole in the center, the inner side wall of the mounting hole is fixedly connected with a positioning cylinder, the inner side wall of the positioning cylinder is slidably connected with a top cylinder, the inner side wall of the top cylinder is slidably connected with a top block, the top of the top block is fixedly connected with a buffer spring, the top of the buffer spring is fixedly connected to the inner top wall of the top cylinder, the lower surface of the top block is welded with a connecting sleeve in the center, the bottom of the connecting sleeve penetrates the inner bottom wall of the top cylinder in the center, the inner side wall of the connecting sleeve is threadedly connected with a top rod, and the bottom of the top rod is fixedly connected to the output end of the electric cylinder.

[0008] As a further preferred aspect of the technical solution: the inner side wall of the positioning cylinder is slidably connected with a plunger rod body near the upper part of the top cylinder, the top of the top cylinder is fixedly connected with a protective pad, and the top of the protective pad is connected to the bottom of the plunger rod body.

[0009] As a further preferred aspect of the technical solution: the outer side wall of the positioning seat is welded with a connecting ring at the bottom, the lower surface of the base is provided with a mounting groove near the outer side of the connecting hole, and the outer side wall of the connecting ring is fixedly connected to the inner side wall of the mounting groove through a plurality of screws.

[0010] As a further preferred aspect of the technical solution: the upper surface of the positioning seat is connected with a matching part, the lower surface of the matching part is provided with an assembly hole in the center, the upper surface of the positioning seat is fixedly connected with a plurality of positioning columns near the outer side of the mounting hole, the lower surface of the matching part is provided with a plurality of positioning holes near the outer side of the assembly hole, and the outer side wall of the positioning column is slidably connected to the inner side wall of the positioning hole.

[0011] As a further preferred aspect of the technical solution: the upper surface of the assembly table is welded with a U-shaped support in the center of both sides, the upper surface of the U-shaped support is provided with a limiting screw hole in the center, the inner side wall of the limiting screw hole is threadedly connected with a limiting screw, the outer side wall of the limiting screw is rotatably connected with a limiting disc at the bottom, the lower surface of the limiting disc is fixedly connected with an anti-skid pad, and the bottom of the anti-skid pad is connected to the upper surface of the matching part.

[0012] As a further preferred aspect of the technical solution: the bottom of the assembly table is fixedly connected with a support frame at the four corners, the inner side wall of the support frame is welded with a mounting support at the lower part, and the outer side wall of the electric cylinder is fixedly connected to the inner side wall of the mounting support.

[0013] As a further preferred aspect of the technical solution: the top of the limiting screw is welded with a rotating handle.

[0014] As a further preferred technical solution of the present application, the bottom of the support frame is fixedly connected with anti-skid foot pads.

[0015] The utility model discloses the advantages are:

[0016] 1, the utility model discloses a positioning column on the positioning seat and the positioning hole cooperation of cooperation component cooperation makes cooperation component accurate positioning on the positioning seat, and the limiting of positioning cylinder to plunger rod body, avoids the deviation when assembling, can guarantee plunger rod accurate insertion cooperation component's assembly hole, improves the assembly accuracy;

[0017] 2, the utility model discloses the protective pad of top cylinder top can prevent plunger rod bottom damage in the assembling process because of the impact force, and simultaneously, buffering spring can absorb and disperse the impact force generated by electric cylinder drive, avoids the damage of plunger rod to the excessive pressure, ensures its integrity and quality, guarantees the assembly quality;

[0018] 3, the utility model discloses through the detachable screw, can replace the positioning seat with different size positioning cylinder, and the threaded connection of connecting sleeve and jacks, convenient to detach the connecting sleeve and related components, thereby adapt to different models plunger rod body, improve the versatility of the fixture. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description, obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0020] Figure 1 It is a perspective structural diagram of the utility model;

[0021] Figure 2 It is another perspective structural diagram of the utility model;

[0022] Figure 3 It is the overall cut structure schematic diagram of the utility model;

[0023] Figure 4 It is the top cylinder and buffer spring structure schematic diagram of the utility model.

[0024] In the figure: 1, assembly component; 11, assembly table; 12, through slot; 13, base; 14, connecting hole; 15, positioning seat; 16, mounting hole; 17, positioning cylinder; 18, top cylinder; 19, top block; 20, buffer spring; 21, connecting sleeve; 22, top rod; 23, plunger rod body; 24, protective pad; 25, connecting ring; 26, mounting groove; 27, screw; 28, matching component; 29, assembly hole; 30, positioning column; 31, positioning hole; 32, U-shaped support; 33, limiting screw hole; 34, limiting screw; 35, limiting disc; 36, anti-skid pad; 37, support frame; 38, mounting support; 39, electric cylinder; 40, handlebar; 41, anti-skid foot pad. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0026] EMBODIMENT

[0027] Please refer to Figures 1-4 The utility model provides a technical scheme: a single crystal di-aluminum oxide plunger rod cold pressure assembly jig, including assembly component 1, assembly component 1 including assembly table 11, through slot 12, base 13, connecting hole 14, positioning seat 15, mounting hole 16, positioning cylinder 17, top cylinder 18, top block 19, buffer spring 20, connecting sleeve 21, top rod 22 and electric cylinder 39;

[0028] The upper surface center of assembly table 11 is provided with through slot 12, the inner side wall of through slot 12 is fixedly connected with base 13, the upper surface center of base 13 is provided with connecting hole 14, the inner side wall of connecting hole 14 is connected with positioning seat 15, the upper surface center of positioning seat 15 is provided with mounting hole 16, the inner side wall of mounting hole 16 is fixedly connected with positioning cylinder 17, the inner side wall of positioning cylinder 17 is slidably connected with top cylinder 18, the inner side wall of top cylinder 18 is slidably connected with top block 19, the top of top block 19 is fixedly connected with buffer spring 20, the top of buffer spring 20 is fixedly connected to the inner top wall of top cylinder 18, the lower surface center of top block 19 is welded with connecting sleeve 21, the bottom of connecting sleeve 21 penetrates the inner bottom wall center of top cylinder 18, the inner side wall of connecting sleeve 21 is threadedly connected with top rod 22, and the bottom of top rod 22 is fixedly connected to the output end of electric cylinder 39;Through the threaded connection of connecting sleeve 21 and top rod 22, the connecting sleeve 21 and the top cylinder 18 and other components thereon can be conveniently disassembled, and then the top cylinder 18 that is adapted according to the size of positioning cylinder (17) can be conveniently replaced.

[0029] When the top block 19 rises, the buffer spring 20 is compressed according to the pressure, absorbs and disperses part of the impact force, and gradually reaches the maximum compression amount when the pressure exceeds the elastic limit, so that the pressure transmitted to the plunger rod body 23 is kept in a relatively moderate range, avoiding damage to the plunger rod caused by excessive pressure impact, and ensuring the integrity and quality of the plunger rod. At the same time, the buffer spring 20 can adjust its deformation degree according to the actual situation during compression and rebound, so that the pressure applied by the top cylinder 18 to the plunger rod body 23 is more uniform. During assembly, the plunger rod body 23 needs to be uniformly stressed to be smoothly and accurately inserted into the assembly hole 29 of the fitting component 28. If the pressure is uneven, it may cause problems such as tilting and jamming during plunger rod insertion, affecting the precision and effect of assembly. The buffer spring 20 adjusts the pressure through its elastic deformation, ensures that the plunger rod body 23 is uniformly stressed, and helps to improve the precision and quality of assembly.

[0030] In this embodiment, specifically, the inner side wall of the positioning cylinder 17 is slidingly connected with the plunger rod body 23 near the upper part of the top cylinder 18, the top of the top cylinder 18 is fixedly connected with the protective pad 24, and the top of the protective pad 24 is connected to the bottom of the plunger rod body 23. The protective pad 24 on the top cylinder 18 protects the bottom of the plunger rod body 23, thereby preventing the bottom of the plunger rod body 23 from being damaged under the impact force of the top cylinder 18.

[0031] In this embodiment, specifically, the outer side wall of the positioning seat 15 is welded with the connecting ring 25, the lower surface of the base 13 is provided with the mounting groove 26 near the outer side of the connecting hole 14, and the outer side wall of the connecting ring 25 is fixedly connected to the inner side wall of the mounting groove 26 through the plurality of screws 27. By disassembling the screws 27, the positioning seat 15 with different sizes of positioning cylinders 17 can be replaced, thereby adapting to different models of plunger rod bodies 23. The positioning cylinder 17 of the plunger rod body 23 model that can be adapted by the jig has an inner diameter size range of 10-50mm, which can meet the assembly requirements of various different models of plunger rod bodies, and effectively improves the universality of the jig.

[0032] In this embodiment, specifically, the upper surface of the positioning seat 15 is connected with the fitting component 28, the lower surface of the fitting component 28 is provided with the assembly hole 29 at the center, the upper surface of the positioning seat 15 is fixedly connected with the plurality of positioning columns 30 near the outer side of the mounting hole 16, the lower surface of the fitting component 28 is provided with the plurality of positioning holes 31 near the outer side of the assembly hole 29, and the outer side wall of the positioning column 30 is slidingly connected to the inner side wall of the positioning hole 31. Through the cooperation of the positioning column 30 on the positioning seat 15 and the positioning hole 31 on the fitting component 28, the fitting component 28 is limited and prevented from sliding on the positioning seat 15.

[0033] In this embodiment, specifically: the upper surface of the assembly table 11 both sides of the center is welded with a U-shaped bracket 32, the upper surface of the center of the U-shaped bracket 32 is provided with a limiting screw hole 33, the inner wall of the limiting screw hole 33 is threadedly connected with a limiting screw 34, the outer wall of the limiting screw 34 is rotatably connected with a limiting disc 35 at the bottom, the lower surface of the limiting disc 35 is fixedly connected with a non-slip pad 36, the bottom of the non-slip pad 36 is attached to the upper surface of the matching component 28, and the non-slip performance of the non-slip pad 36 is used to make the matching component 28 more firm. In addition, the non-slip pad 36 also has the effect of protecting the matching component 28.

[0034] In this embodiment, specifically: the bottom of the assembly table 11 is fixedly connected with a support frame 37, the inner wall of the lower part of the support frame 37 is welded with a mounting bracket 38, and the outer wall of the middle part of the electric cylinder 39 is fixedly connected to the inner wall of the mounting bracket 38. The mounting bracket 38 is used to limit and fix the electric cylinder 39, thereby increasing the firmness of the electric cylinder 39.

[0035] In this embodiment, specifically: the top of the limiting screw 34 is welded with a handle 40, which is used to rotate the limiting screw 34.

[0036] In this embodiment, specifically: the bottom of the support frame 37 is fixedly connected with a non-slip foot pad 41, which is used to effectively prevent the support frame 37 from sliding, thereby increasing the stability of the support frame 37.

[0037] The working principle or structural principle is that when in use, the plunger rod body 23 is placed in the positioning cylinder 17, the bottom of the plunger rod body 23 is attached to the protective pad 24 at the top of the top cylinder 18, the protective pad 24 can prevent the bottom of the plunger rod body 23 from being damaged during assembly; the matching component 28 is placed on the upper surface of the positioning seat 15 through the cooperation of the positioning column 30 and the positioning hole 31, the design of the positioning column 30 and the positioning hole 31 can ensure the accurate installation of the matching component 28 and improve the assembly precision; the handle 40 is rotated to drive the limiting screw 34 to rotate in the limiting screw hole 33, so that the limiting disc 35 is lowered until the anti-slip pad 36 is tightly attached to the upper surface of the matching component 28, thereby fixing the matching component 28 and avoiding displacement of the matching component 28 during cold pressing assembly, so as to ensure the stability of assembly; the electric cylinder 39 is started, the output end of the electric cylinder 39 is elongated to drive the top rod 22 to rise, since the top rod 22 is threadedly connected with the connecting sleeve 21, the connecting sleeve 21 drives the top block 19 to rise, the top block 19 compresses the buffer spring 20 and pushes the top cylinder 18 to rise, the top cylinder 18 lifts the plunger rod body 23 upward, so that the plunger rod body 23 is gradually inserted into the assembly hole 29 of the matching component 28, and the cold pressing assembly is completed, in this process, the buffer spring 20 plays a buffering role, avoids damage to the plunger rod body 23 due to excessive pressure, and also makes the pressure transmission more uniform, thereby ensuring the assembly quality; after assembly is completed, the handle 40 is reversely rotated to make the limiting screw 34 rise, separate the limiting disc 35, the anti-slip pad 36 and the matching component 28, and take out the assembled component;

[0038] The single crystal aluminum oxide plunger rod cold pressing assembly jig is equipped with a perfect safety protection system. The electric cylinder 39 is provided with an overload protection device (not shown in the figure), when the output pressure of the electric cylinder exceeds the set safety threshold, the overload protection device will automatically cut off the power supply, avoiding damage to the plunger rod body and the matching component due to excessive pressure. Protective fences are arranged around the assembly table 11 to prevent operators from accidentally contacting dangerous areas during equipment operation. At the same time, the device is also provided with a fault alarm system, when the electric cylinder, positioning device and other key components fail, the alarm system will issue an audible and visual alarm signal, and display the fault information on the control display screen, prompting the operator to check and handle in time. In addition, the device also has data recording and storage function, which can record the parameters and process information of each assembly, facilitating quality traceability and equipment maintenance in later period;

[0039] In order to ensure the normal operation and assembly precision of the single crystal aluminum oxide plunger rod cold pressure assembly jig, the components need to be maintained and maintained regularly. The positioning cylinder 17 is cleaned once a month, the inside impurities and oil stains are removed by using special cleaning tools and cleaning agent, and the plunger rod body can be smoothly inserted. The wear of the protective pad 24 is checked every 3 months, and when the wear seriously affects the protection effect, it is replaced in time. The hydraulic oil level and quality of the electric cylinder 39 are checked every 6 months, and the hydraulic oil is added or replaced if necessary, and the sealing performance of the electric cylinder is checked to ensure that it will not leak during work. In addition, it is also regularly checked whether the connection of each part is loose, whether the screw is tightened, and if there is a problem, it is handled in time.

[0040] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application is included in the protection scope of the present application.

Claims

1. A single crystal aluminum oxide plunger rod cold press assembly jig, characterized in that, The utility model provides an assembly component (1), the assembly component (1) includes assembly platform (11), through slot (12), base (13), connecting hole (14), locating seat (15), mounting hole (16), locating cylinder (17), top cylinder (18), top block (19), buffer spring (20), connecting sleeve (21), top rod (22) and electric cylinder (39); The upper surface center of the assembly platform (11) is provided with a through slot (12), the inner side wall of the through slot (12) is fixedly connected with a base (13), the upper surface center of the base (13) is provided with a connecting hole (14), the inner side wall of the connecting hole (14) is connected with a locating seat (15), the upper surface center of the locating seat (15) is provided with a mounting hole (16), the inner side wall of the mounting hole (16) is fixedly connected with a locating cylinder (17), the inner side wall of the locating cylinder (17) is slidably connected with a top cylinder (18), the inner side wall of the top cylinder (18) is slidably connected with a top block (19), the top of the top block (19) is fixedly connected with a buffer spring (20), the top of the buffer spring (20) is fixedly connected to the inner top wall of the top cylinder (18), the lower surface center of the top block (19) is welded with a connecting sleeve (21), the bottom of the connecting sleeve (21) penetrates the inner bottom wall center of the top cylinder (18), the inner side wall of the connecting sleeve (21) is threadedly connected with a top rod (22), and the bottom of the top rod (22) is fixedly connected to the output end of an electric cylinder (39).

2. The single crystal aluminum oxide plunger rod cold press assembly jig of claim 1, wherein, The inner side wall of the locating cylinder (17) is slidably connected with a plunger rod body (23) near the upper part of the top cylinder (18), the top of the top cylinder (18) is fixedly connected with a protective pad (24), and the top of the protective pad (24) is connected to the bottom of the plunger rod body (23).

3. The single crystal aluminum oxide plunger rod cold press assembly jig of claim 1, wherein, The outer side wall bottom of the locating seat (15) is welded with a connecting ring (25), the lower surface of the base (13) is provided with a mounting groove (26) near the outer side of the connecting hole (14), and the outer side wall of the connecting ring (25) is fixedly connected to the inner side wall of the mounting groove (26) through a plurality of screws (27).

4. The single crystal aluminum oxide plunger rod cold press assembly jig of claim 1, wherein, The upper surface of the locating seat (15) is connected with a matching component (28), the lower surface center of the matching component (28) is provided with an assembly hole (29), the upper surface of the locating seat (15) is fixedly connected with a plurality of positioning columns (30) near the outer side of the mounting hole (16), the lower surface of the matching component (28) is provided with a plurality of positioning holes (31) near the outer side of the assembly hole (29), and the outer side wall of the positioning column (30) is slidably connected to the inner side wall of the positioning hole (31).

5. The single crystal aluminum oxide plunger rod cold press assembly jig of claim 4, wherein, The upper surface of the assembly table (11) is welded with a U-shaped support (32) at the center of both sides, the upper surface of the U-shaped support (32) is provided with a limiting screw hole (33) at the center, the inner side wall of the limiting screw hole (33) is threadedly connected with a limiting screw rod (34), the outer side wall of the limiting screw rod (34) is rotatably connected with a limiting disc (35) at the bottom, the lower surface of the limiting disc (35) is fixedly connected with a non-slip pad (36), and the bottom of the non-slip pad (36) is attached to the upper surface of the matching component (28).

6. The single crystal aluminum oxide plunger rod cold press assembly jig of claim 1, wherein, The bottom of the assembly table (11) is fixedly connected with a support frame (37) at the four corners, the inner side wall of the support frame (37) is welded with a mounting support (38) at the lower part, and the outer side wall of the electric cylinder (39) is fixedly connected to the inner side wall of the mounting support (38).

7. The single crystal aluminum oxide plunger rod cold press assembly jig of claim 5, wherein, The top of the limiting screw rod (34) is welded with a rotating handle (40).

8. The single crystal aluminum oxide plunger rod cold press assembly jig of claim 6, wherein, The bottom of the support frame (37) is fixedly connected with a non-slip foot pad (41).

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