Cylinder body shaft sleeve press-fitting equipment

Abstract

The utility model discloses a cylinder body shaft sleeve press fitting device which comprises a press machine, and an elastic bearing device is installed at the bottom of the press machine. A cylinder body is arranged outside the elastic bearing device, a shaft sleeve is borne on the top of the elastic bearing device, the shaft sleeve corresponds to the cylinder body, and the elastic bearing device comprises an installation mechanism and a supporting mechanism, the positioning mechanism is mounted at the top of the mounting mechanism, and the shaft sleeve is borne at the top of the positioning mechanism; the sliding mechanism is arranged on the positioning mechanism in a sliding manner; and a spring. By means of the arrangement mode that the press machine and the elastic bearing device are matched, the shaft sleeve is placed on the elastic bearing device to be positioned, the spring is pressed through the sliding mechanism, the spring is compressed, the shaft sleeve makes contact with the cylinder body, the shaft sleeve is pressed into the cylinder body to complete assembling, the press machine resets and ascends, and the spring resets. And the cylinder body, the shaft sleeve and the sliding mechanism are jacked to an upper limit, so that part taking and next press fitting are facilitated.

Description

Technical Field

[0001] The utility model relates to the field of press-fitting equipment, in particular to a cylinder shaft sleeve press-fitting equipment. Background Art

[0002] Before press-fitting, it is necessary to ensure that the size and matching size of the sleeve and cylinder body meet the requirements, and the surface finish and lubrication are in good condition to ensure smooth press-fitting. In addition, it is necessary to select appropriate press-fitting methods and tools according to the specific situation, and replace, repair and maintain the sleeve and cylinder body. There are mainly the following methods for press-fitting between the cylinder body and the sleeve: 1. Cold press-fitting: first put the sleeve into the freezer or use liquid nitrogen to cool it to shrink the sleeve, then heat the cylinder body to a certain temperature, and press-fit the cylinder body and sleeve by the principle of thermal expansion and contraction. 2. Hot press-fitting: heat the sleeve and cylinder body to a certain temperature respectively, and then quickly put the sleeve into the cylinder body for press-fitting. Use the principle of thermal expansion and contraction to ensure that the sleeve is tightly embedded in the cylinder body.

[0003] The first two press-fitting methods require temperature changes. In an environment without temperature regulation, hydraulic mechanical press-fitting is generally performed, using hydraulic or mechanical devices to apply a certain force to press the sleeve into the cylinder body. In the existing hydraulic mechanical press-fitting, it generally includes two parts: a carrier and a press. The carrier supports the press sleeve, and the press presses the cylinder body. It can only achieve press-fitting between the cylinder body and the sleeve, but it is inconvenient to eject the cylinder body after press-fitting, which is also inconvenient to eject the assembly. Utility Model Content

[0004] The utility model aims to provide a cylinder sleeve press-fitting device to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a cylinder sleeve press-fitting device, comprising:

[0006] A press, wherein an elastic bearing device is installed at the bottom of the press;

[0007] The elastic bearing device is provided with a cylinder body on the outside, and a shaft sleeve is supported on the top of the elastic bearing device, and the shaft sleeve corresponds to the cylinder body. The elastic bearing device comprises:

[0008] A mounting mechanism, wherein the mounting mechanism is mounted on a press;

[0009] A positioning mechanism, wherein the positioning mechanism is mounted on the top of the mounting mechanism, and the shaft sleeve is carried on the top of the positioning mechanism;

[0010] A sliding mechanism, wherein the sliding mechanism is slidably disposed on the positioning mechanism;

[0011] A spring is movably sleeved outside the positioning mechanism.

[0012] Preferably, the press comprises:

[0013] A mounting frame, the mounting frame is arranged in a C shape, a bearing frame is installed on both sides of the mounting frame, and the elastic bearing device is installed on the bearing frame;

[0014] A hydraulic cylinder, wherein the hydraulic cylinder is mounted on the top of the mounting frame;

[0015] A pressure head is transmission-connected to an output end of the hydraulic cylinder.

[0016] Preferably, the mounting mechanism comprises:

[0017] A bottom plate, the bottom plate is mounted on the bearing frame, and a through hole is opened in the middle of the bottom plate;

[0018] The bearing plate is installed on the bottom plate, and a groove is formed on the top of the bearing plate.

[0019] Preferably, the positioning mechanism comprises:

[0020] A guide post, the bottom of which is fitted into the interior of the groove;

[0021] A positioning convex head is installed on the top of the guide column. The positioning convex head and the guide column are integrated, and the shaft sleeve and the positioning convex head are sleeved with each other.

[0022] Preferably, the positioning mechanism further comprises:

[0023] The fastener is connected to the bearing plate by sliding and inserting, the fastener is connected to the bottom thread of the guide column by inserting, and the guide column is installed on the bearing plate by the fastener.

[0024] Preferably, the guide column is arranged in a T-shape.

[0025] Preferably, the sliding mechanism comprises:

[0026] A positioning sleeve, wherein the positioning sleeve is slidably sleeved on the outside of the guide column, and an annular groove is provided on the outside of the top of the positioning sleeve, and the annular groove cooperates with the bottom of the cylinder body;

[0027] The oil-free bushing is fixedly installed inside the positioning sleeve and is slidably sleeved with the guide column.

[0028] Technical effects and advantages of the utility model:

[0029] The utility model utilizes a setting mode that cooperates with a press machine and an elastic bearing device, places the shaft sleeve on the elastic bearing device for positioning, places the cylinder body on the sliding mechanism for positioning, and the press machine works to press the cylinder body downward, so that the sliding mechanism moves downward on the positioning mechanism, the sliding mechanism presses the spring, the spring is compressed, the shaft sleeve contacts the cylinder body, and the shaft sleeve is pressed into the cylinder body to complete the assembly, the press machine resets and rises, the spring resets, and the cylinder body, the shaft sleeve, and the sliding mechanism are lifted to the upper limit position, thereby facilitating the assembly between the cylinder body and the shaft sleeve, and also facilitating the removal of parts and the next pressing. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic diagram of the front structure of the utility model before press-fitting.

[0031] Figure 2 It is a schematic diagram of the front structure of the utility model during press-fitting.

[0032] Figure 3 For this utility model Figure 2 Schematic diagram of the cross-sectional structure at BB in the middle.

[0033] Figure 4 It is a schematic diagram of the internal structure of the cylinder body of the utility model.

[0034] Figure 5 It is a schematic diagram of the internal structure of the elastic bearing device of the utility model.

[0035] In the figure: 1. press machine; 11. mounting frame; 12. hydraulic cylinder; 13. pressing head; 2. elastic bearing device; 21. mounting mechanism; 211. bottom plate; 212. bearing plate; 22. positioning mechanism; 221. guide column; 222. positioning boss; 223. fastener; 23. sliding mechanism; 231. positioning sleeve; 232. oil-free bushing; 24. spring; 3. cylinder body; 4. bushing. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0037] The utility model provides Figure 1-5The cylinder sleeve press-fitting device shown in the figure comprises: a press machine 1, an elastic bearing device 2 is installed at the bottom of the press machine 1; a cylinder 3 is arranged outside the elastic bearing device 2, a sleeve 4 is carried on the top of the elastic bearing device 2, and the sleeve 4 corresponds to the cylinder 3. The elastic bearing device 2 comprises: a mounting mechanism 21, the mounting mechanism 21 is mounted on the press machine 1; a positioning mechanism 22, the positioning mechanism 22 is mounted on the top of the mounting mechanism 21, and the sleeve 4 is carried on the top of the positioning mechanism 22; a sliding mechanism 23, the sliding mechanism 23 is slidably arranged on the positioning mechanism 22; a spring 24, the spring 24 is movably sleeved on the positioning mechanism 22; Outside the positioning mechanism 22, the sleeve 4 is placed on the elastic bearing device 2 for positioning, and the cylinder body 3 is placed on the sliding mechanism 23 for positioning. The press 1 works and presses down the cylinder body 3, so that the sliding mechanism 23 moves downward on the positioning mechanism 22. The sliding mechanism 23 presses the spring 24, and the spring 24 is compressed, so that the sleeve 4 contacts the cylinder body 3, and the sleeve 4 is pressed into the cylinder body 3 to complete the assembly. The press 1 resets and rises, and the spring 24 resets, and the cylinder body 3, the sleeve 4, and the sliding mechanism 23 are lifted to the upper limit, so as to facilitate the assembly between the cylinder body 3 and the sleeve 4, and also facilitate the removal of parts and the next pressing.

[0038] Furthermore, the press 1 includes: a mounting frame 11, which is arranged in a C shape, and a load-bearing frame is installed on both sides of the mounting frame 11, and an elastic load-bearing device 2 is installed on the load-bearing frame; a hydraulic cylinder 12, which is installed on the top of the mounting frame 11; a pressing head 13, which is transmission-connected to the output end of the hydraulic cylinder 12, and is convenient for installing the load-bearing frame through the mounting frame 11, and is convenient for installing the mounting mechanism 21 through two L-shaped load-bearing frames, and is convenient for driving the lifting movement of the pressing head 13 through the telescopic movement of the hydraulic cylinder 12, thereby facilitating the lifting movement of the pressing head 13, so that the pressing head 13 can press the cylinder body 3, so as to realize the pressing assembly of the cylinder body 3 and the shaft sleeve 4.

[0039] Furthermore, the mounting mechanism 21 includes: a base plate 211, the base plate 211 is mounted on the supporting frame, a through hole is opened in the middle of the base plate 211, and the fastener 223 can pass through the through hole to facilitate the passage of the fastener 223, so that the fastener 223 can pass through the through hole and interspersed with the supporting plate 212 to achieve the installation of the guide column 221; a supporting plate 212, the supporting plate 212 is mounted on the base plate 211, and a groove is opened on the top of the supporting plate 212, and the groove is used to facilitate the limitation of the bottom of the guide column 221, so that the assembly between the guide column 221 and the supporting plate 212 is more stable, and the guide column 221 is conveniently installed and fixed through the supporting plate 212.

[0040] Further, the positioning mechanism 22 includes: a guide column 221, the bottom of which is matched with the inside of the groove; a positioning convex head 222, which is installed on the top of the guide column 221, the positioning convex head 222 and the guide column 221 are integrated, and the sleeve 4 and the positioning convex head 222 are mutually sleeved. The positioning mechanism 22 also includes: a fastener 223, the fastener 223 is slidably inserted and connected with the bearing plate 212, the fastener 223 is threadedly inserted and connected with the bottom of the guide column 221, and the guide column 221 is installed on the bearing plate 212 through the fastener 223. The guide column 221 is set in a T-shaped configuration, and the guide column 221 is convenient for limiting the sliding of the positioning sleeve 231, so that the vertical sliding of the positioning sleeve 231 is more stable, and the positioning convex head 222 is convenient for limiting the position of the sleeve 4, so that the position of the sleeve 4 is more stable when assembled with the cylinder body 3, and the fastener 223 is convenient for installing the guide column 221.

[0041] Furthermore, the sliding mechanism 23 includes: a positioning sleeve 231, which is slidably mounted on the outside of the guide column 221, and an annular groove is provided on the outside of the top of the positioning sleeve 231. When the cylinder body 3 is placed, the bottom of the cylinder body 3 is sleeved on the positioning sleeve 231, so that the inner wall of the cylinder body 3 and the annular groove cooperate with each other, which is convenient for the bearing positioning of the cylinder body 3, so that the assembly accuracy between the shaft sleeve 4 and the cylinder body 3 is higher, and the annular groove and the bottom of the cylinder body 3 cooperate with each other; an oil-free bushing 232, which is fixedly mounted on the inside of the positioning sleeve 231, and the oil-free bushing 232 is slidably sleeved with the guide column 221, and the oil-free bushing 232 is made of polymer material, has self-lubricating properties, can reduce friction and wear, and improve sliding performance. It can form a thin film between the sliding contact surfaces, reduce direct contact between metals, effectively reduce friction and wear, and make the sliding of the positioning sleeve 231 smoother.

[0042] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A cylinder sleeve press-fitting device, comprising: A press (1), wherein an elastic bearing device (2) is installed at the bottom of the press (1); The invention is characterized in that: a cylinder body (3) is arranged outside the elastic bearing device (2), a shaft sleeve (4) is carried on the top of the elastic bearing device (2), the shaft sleeve (4) corresponds to the cylinder body (3), and the elastic bearing device (2) comprises: A mounting mechanism (21), wherein the mounting mechanism (21) is mounted on the press (1); A positioning mechanism (22), wherein the positioning mechanism (22) is mounted on the top of the mounting mechanism (21), and the shaft sleeve (4) is supported on the top of the positioning mechanism (22); A sliding mechanism (23), wherein the sliding mechanism (23) is slidably disposed on the positioning mechanism (22); A spring (24) is movably sleeved on the outside of the positioning mechanism (22).

2. The cylinder sleeve press-fitting device according to claim 1, characterized in that: The press (1) comprises: A mounting frame (11), the mounting frame (11) being arranged in a C-shape, a bearing frame being installed on both sides of the mounting frame (11), and the elastic bearing device (2) being installed on the bearing frame; A hydraulic cylinder (12), wherein the hydraulic cylinder (12) is mounted on the top of the mounting frame (11); A pressure head (13), wherein the pressure head (13) is transmission-connected to an output end of the hydraulic cylinder (12).

3. The cylinder sleeve press-fitting equipment according to claim 1, characterized in that: The mounting mechanism (21) comprises: A bottom plate (211), the bottom plate (211) is mounted on the support frame, and a through hole is opened in the middle of the bottom plate (211); A carrying plate (212), wherein the carrying plate (212) is installed on the bottom plate (211), and a groove is formed on the top of the carrying plate (212).

4. The cylinder sleeve press-fitting device according to claim 3, characterized in that: The positioning mechanism (22) comprises: A guide column (221), the bottom of which is fitted into the interior of the groove; A positioning convex head (222) is installed on the top of the guide column (221), the positioning convex head (222) and the guide column (221) are integrated, and the shaft sleeve (4) and the positioning convex head (222) are sleeved with each other.

5. The cylinder sleeve press-fitting device according to claim 4, characterized in that: The positioning mechanism (22) further comprises: A fastener (223) is slidably connected to the carrier plate (212), the fastener (223) is connected to the bottom thread of the guide column (221) through the fastener (223), and the guide column (221) is installed on the carrier plate (212) through the fastener (223).

6. The cylinder sleeve press-fitting device according to claim 4, characterized in that: The guide column (221) is arranged in a T-shape.

7. The cylinder sleeve press-fitting device according to claim 4, characterized in that: The sliding mechanism (23) comprises: A positioning sleeve (231), the positioning sleeve (231) is slidably sleeved on the outside of the guide column (221), an annular groove is provided on the outside of the top of the positioning sleeve (231), and the annular groove cooperates with the bottom of the cylinder body (3); An oil-free bushing (232) is fixedly installed inside the positioning sleeve (231), and the oil-free bushing (232) is slidably sleeved with the guide column (221).

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