Cylinder sleeve spinning tool

Abstract

The utility model provides a cylinder sleeve spinning tool which comprises a base plate, a support is arranged on the upper portion of the base plate, a spinning lead screw is arranged on the support and connected with a lifting spinning hand wheel, the spinning lead screw rotates and moves downwards when the lifting spinning hand wheel is rotated, and a pressing head is installed at the bottom end of the spinning lead screw. The spinning tool further comprises an independent aluminum center positioning disc, a positioning boss used for being matched with the air cylinder sleeve is arranged on the lower surface of the aluminum center positioning disc, and a conical positioning groove matched with the pressing head is formed in the upper surface of the aluminum center positioning disc. The tool has the advantages of being capable of being adjusted in multiple directions, accurate in equipment positioning, even in stress and the like, the press-fitting efficiency of the cylinder sleeve can be improved, and the press-fitting quality is guaranteed.

Description

Technical Field

[0001] The utility model mainly relates to the technical field related to the installation of an engine cylinder liner, in particular to a cylinder liner spinning tool. Background Art

[0002] The cylinder liner needs to be installed on the engine block, and the cylinder liner is generally installed into the corresponding mounting hole of the engine block by pressing. In the prior art, the cost of the fully automatic press-fitting machine for cylinder liner installation is relatively high, so the market demand is limited. For some manufacturers, most of them tend to use manual tooling to assist in the press-fitting of cylinder liners.

[0003] In the prior art, the auxiliary tooling used for cylinder liner installation is generally divided into two categories. One is a press-fit structure using a lever, which drives the pressure head downward to apply force to the cylinder liner through the principle of the lever to achieve the purpose of saving effort. The other is a gantry frame press-fit structure, which drives the pressure head downward to apply force to the cylinder liner through a lead screw. The defects of the prior art are that during the press-fit process, the cylinder liner is easily deformed and damaged due to uneven force and rigid press-fitting. Before the cylinder liner is press-fitted, the equipment positioning is cumbersome, inaccurate, and inflexible, resulting in low efficiency of cylinder liner press-fitting. Utility Model Content

[0004] In order to solve the shortcomings of the current technology, the utility model combines the existing technology and, based on practical application, provides a cylinder liner spinning tool, which has the advantages of being able to be adjusted in multiple directions, accurate equipment positioning and uniform force, etc., which can improve the cylinder liner pressing efficiency and ensure the pressing quality.

[0005] To achieve the above purpose, the technical solution of the utility model is as follows:

[0006] A cylinder liner spinning tool comprises a chassis, a support is arranged on the upper part of the chassis, a spinning screw is arranged on the support, the spinning screw is connected to a lifting and spinning hand wheel, when the lifting and spinning hand wheel is turned, the spinning screw rotates and moves downward, and a pressure head is installed at the bottom end of the spinning screw; the spinning tool also comprises an independent aluminum center positioning plate, the lower surface of the aluminum center positioning plate is provided with a positioning boss for cooperating with the cylinder liner, and the upper surface of the aluminum center positioning plate is provided with a conical positioning groove cooperating with the pressure head.

[0007] Furthermore, the pressure head is a nylon pressure head.

[0008] Furthermore, the support as a whole is a gantry frame structure, a left and right translation assembly is arranged on the support, and the spin screw is installed on the left and right translation assembly.

[0009] Furthermore, the left and right translation assembly includes a translation block, a connecting plate, a translation screw, and a translation handwheel. The connecting plate is arranged on one side of the translation block, the translation screw is threadedly matched with the connecting plate, the translation handwheel is installed on one end of the translation screw, the translation block is slidably arranged in a long groove opened on the upper part of the support, and the rotary screw is threadedly matched with the translation block.

[0010] Furthermore, a running wheel assembly is provided on the support, and the running wheel assembly enables the support to move forward and backward along the chassis.

[0011] Furthermore, the running wheel assembly comprises an upper running wheel and a lower running wheel, and the upper running wheel and the lower running wheel are respectively arranged at the upper and lower ends of the chassis.

[0012] Furthermore, a rotating assembly is arranged between the pressing head and the spinning screw.

[0013] Furthermore, the rotating assembly includes a bearing seat, a plane bearing and a deep groove ball bearing, the plane bearing and the deep groove ball bearing are installed on the joint at the bottom of the spinning screw, the plane bearing and the deep groove ball bearing are arranged in the bearing seat, and the pressure head sleeve is installed on the bearing seat.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. In the structural design of the utility model, an aluminum center positioning plate is used as an auxiliary part, the lower surface of which is clamped to the upper part of the cylinder sleeve, and the upper surface is forced by the pressure head controlled by the spinning screw. The operation is simple, and the aluminum structural design avoids hard extrusion with the cylinder sleeve, avoids deformation of the cylinder sleeve, and ensures the press-fitting quality;

[0016] 2. In the structural design of the utility model, the pressure head can be adjusted left and right, front and back, and up and down. The adjustment method is simple and can complete the press-fitting operation of multiple cylinder sleeves at one time. The multi-directional adjustment structure of the pressure head cooperates with the tapered hole structure of the aluminum center positioning plate to facilitate and accurately position and ensure uniform force during the press-fitting process of the cylinder sleeve. The aluminum center positioning plate is an independent structure. When press-fitting cylinder sleeves of different sizes and specifications, the corresponding positioning plate can be directly used;

[0017] 3. In the structural design of the utility model, the support of the gantry frame structure adopts the upper and lower wheel installation method, which is flexible in movement, and the equipment is highly stable during the press-fitting process without any safety hazards;

[0018] 4. In the structural design of the utility model, the pressure head and the spinning screw are connected by a rotating assembly. The pressure head will not rotate during the pressing process, ensuring the stability during the pressing process. The pressure head adopts a nylon structure to avoid hard friction with the aluminum center positioning plate, ensuring the service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] AttachedFigure 1 It is a schematic diagram of the overall structure of the utility model.

[0020] Attached Figure 2 It is a partial structural schematic diagram of the utility model.

[0021] Attached Figure 3 This is a schematic diagram of the structure of the aluminum center positioning plate of the utility model.

[0022] Attached Figure 4 It is a schematic diagram of the relevant structure of the rotating component of the utility model.

[0023] Numbers shown in the accompanying drawings:

[0024] 1. Chassis; 2. Aluminum center positioning plate; 3. Pressure head; 4. Spinning screw; 5. Lifting and spinning handwheel; 6. Left and right translation assembly; 7. Support; 8. Upper running wheel; 9. Lower running wheel; 10. Rotating assembly; 11. Translation block; 12. Connecting plate; 13. Translation screw; 14. Translation handwheel; 15. Positioning boss; 16. Conical positioning groove; 17. Bearing seat; 18. Deep groove ball bearing; 19. Plane bearing. DETAILED DESCRIPTION

[0025] The utility model is further described in conjunction with the accompanying drawings and specific embodiments. It should be understood that these embodiments are only used to illustrate the utility model and are not used to limit the scope of the utility model. In addition, it should be understood that after reading the content taught by the utility model, those skilled in the art can make various changes or modifications to the utility model, and these equivalent forms also fall within the scope defined by this application.

[0026] This embodiment provides a cylinder liner spinning tool, which is mainly used to assist the installation of the cylinder liner on the cylinder body.

[0027] refer to Figure 1 The figure shows the overall structure of the present invention. It mainly includes: chassis 1, support 7, lifting assembly, etc. The support 7 adopts a gantry frame structure, and the bottom of its two side panels are installed on both sides of the chassis 1 through the walking wheel assembly, and the spinning screw 4 is installed on the upper middle plate. A lifting spinning hand wheel 5 is connected to the top of the spinning screw 4, and the spinning screw 4 is driven to rotate by rotating the lifting spinning hand wheel 5. During the rotation, the spinning screw 4 moves downward. A nylon pressure head 3 is installed at the bottom of the spinning screw 4, and the pressure head applies force to the workpiece below to provide pressure when the cylinder sleeve is installed.

[0028] This tooling design has an independent aluminum center positioning plate 2, which is not directly connected to other parts, but can be used for positioning during the cylinder liner press-fitting process. The aluminum center positioning plate 2 is made of aluminum and has a disc-shaped structure. Figure 3As shown, the aluminum center positioning plate 2 has a positioning boss 15 on its lower surface and a conical positioning groove 16 on its upper surface. The positioning boss 15 on the lower surface is mainly used to cooperate with the cylinder sleeve, which is a hollow cylindrical structure. The small diameter position of the positioning boss 15 can be inserted into the center hole of the cylinder sleeve. The conical positioning groove 16 on the upper surface is mainly used to cooperate with the pressure head 3, and the pressure head 3 can be inserted into the conical positioning groove 16. It is difficult to provide sufficient pressing force on the cylinder liner by simply using a nylon pressing head 3, and the pressing head 3 is easily damaged. Therefore, in the present application, the aluminum center positioning plate 2 is installed between the cylinder liner and the pressing head 3 when the cylinder liner is pressed. This can ensure the pressing force and the service life of the pressing head 3. At the same time, because the aluminum structural material is softer than the cylinder liner, the two are not in completely hard contact, so damage to the cylinder liner can be avoided. Furthermore, the aluminum center positioning plate 2 is an independent structure. When pressing cylinder liners of different sizes, an aluminum center positioning plate 2 of a corresponding size can be used without making any changes to the equipment.

[0029] In the above structure of the present embodiment, the pressing head 3 mainly realizes the feeding in the lifting direction through the spinning screw 4, which is used to provide the pressing force. Before the cylinder sleeve is pressed, the pressing head 3, the aluminum center positioning plate 2 and the cylinder sleeve need to be aligned, and the position of the pressing head 3 mainly needs to be adjusted. In order to facilitate the adjustment of the pressing head 3, a left-right moving structure and a front-back moving structure are designed in this application.

[0030] refer to Figure 2 As shown, a left-right translation assembly is arranged on the middle plate at the upper part of the support 7, and the left-right translation assembly 6 includes a translation block 11, a connecting plate 12, a translation screw 13, and a translation hand wheel 14, wherein the connecting plate 12 is fixedly arranged on one side of the translation block 11, the translation screw 13 is threadedly matched with the connecting plate 12, the translation hand wheel 14 is installed on one end of the translation screw 13, the translation block 11 is slidably arranged in the long groove opened at the upper part of the support 7, and the rotary screw 4 is threadedly matched with the translation block 11. In the above structure, the translation hand wheel 14 is rotated to drive the translation screw 13 to rotate, the translation screw 13 drives the connecting plate 12 to move left and right, and then drives the translation block 11 to move left and right, and the translation block 11 adjusts the left and right position of the pressure head 3 when it moves left and right, which has the advantages of simple and convenient operation and the ability to quickly and accurately adjust the left and right directions of the pressure head 3.

[0031] The front and rear position adjustment of the pressure head 3 is achieved through the running wheel assembly, wherein the running wheel assembly includes an upper running wheel 8 and a lower running wheel 9, which are respectively arranged at the upper and lower ends of the chassis 1, and can ensure the stability of the structure, and the support 7 can drive the pressure head 3 to adjust the front and rear position. In actual use, multiple cylinder sleeves need to be pressed on the cylinder body in sequence. Without adjusting other structures, the front and rear position adjustment can make the pressure head 3 press-fit multiple cylinder sleeves one by one. The front and rear position adjustment adopts the structure of the running wheel in combination with the conical positioning groove 16 structure of the pressure head 3 and the aluminum center positioning plate 2, and the pressure head 3 can also be adaptively adjusted in the front and rear direction to achieve the purpose of rapid centering.

[0032] In the present application, the ram 3 mainly applies downward force to the aluminum center positioning plate 2 to press the cylinder liner. However, the spinning screw 4 rotates downward, so in order to prevent the ram 3 from rotating during press-fitting, a rotating assembly 10 is provided between the ram 3 and the spinning screw 4 in the present application.

[0033] refer to Figure 4 As shown, the rotating assembly 10 includes a bearing seat 17, a plane bearing 19 and a deep groove ball bearing 18, the plane bearing 19 and the deep groove ball bearing 18 are installed on the joint at the bottom of the spinning screw 4, the plane bearing 19 and the deep groove ball bearing 18 are arranged in the bearing seat 17, and the pressure head 3 is sleeved and installed on the bearing seat 17. In the above structural design, the pressure head 3 and the spinning screw 4 can rotate relative to each other and can transmit pressure, so when the spinning screw 4 rotates downward, the pressure head 3 can not rotate but can provide a downward force.

[0034] In this application, the principles and steps of using the equipment are as follows:

[0035] Place the engine block on the chassis 1, place the cylinder liner on the cylinder block and the aluminum center positioning plate 2 on the cylinder liner, turn the spinning screw 4 to combine its nylon pressure head 3 with the aluminum center positioning plate 2 (Note: the position of the pressure head 3 can be slightly adjusted by translating the screw 13 and the running wheel, and the conical positioning groove 16 of the aluminum center positioning plate 2 can be used to achieve rapid positioning), turn the spinning screw 4 to slowly press the cylinder liner into the cylinder hole of the cylinder block, move the position of the pressure head 3 back and forth by the running wheel, and press the remaining cylinder liners into the cylinder block in turn.

[0036] Contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0037] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may 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 shall be included in the protection scope of the present invention.

Claims

1. A cylinder liner spinning tool, comprising a chassis, characterized in that: A support is arranged on the upper part of the chassis, and a spinning screw is arranged on the support. The spinning screw is connected to a lifting and lowering spinning hand wheel. When the lifting and lowering spinning hand wheel is turned, the spinning screw rotates and moves downward, and a pressure head is installed at the bottom end of the spinning screw. The spinning tooling also includes an independent aluminum center positioning plate, and a positioning boss for cooperating with the cylinder sleeve is arranged on the lower surface of the aluminum center positioning plate, and a conical positioning groove cooperating with the pressure head is arranged on the upper surface of the aluminum center positioning plate.

2. The cylinder liner spinning tool according to claim 1, characterized in that: The pressure head is a nylon pressure head.

3. The cylinder liner spinning tool according to claim 1, characterized in that: The support is in the form of a gantry frame structure as a whole, a left-right translation assembly is arranged on the support, and the spin screw is installed on the left-right translation assembly.

4. The cylinder liner spinning tool according to claim 3, characterized in that: The left and right translation assembly includes a translation block, a connecting plate, a translation screw, and a translation handwheel. The connecting plate is arranged on one side of the translation block, the translation screw is threadedly matched with the connecting plate, the translation handwheel is installed on one end of the translation screw, the translation block is slidably arranged in a long groove opened on the upper part of the support, and the spinning screw is threadedly matched with the translation block.

5. The cylinder liner spinning tool according to claim 1, characterized in that: The support is provided with a running wheel assembly, and the running wheel assembly enables the support to move forward and backward along the chassis.

6. The cylinder liner spinning tool according to claim 5, characterized in that: The running wheel assembly comprises an upper running wheel and a lower running wheel, and the upper running wheel and the lower running wheel are respectively arranged at the upper and lower ends of the chassis.

7. The cylinder liner spinning tool according to claim 1, characterized in that: A rotating assembly is arranged between the pressure head and the spinning screw.

8. The cylinder liner spinning tool according to claim 7, characterized in that: The rotating assembly includes a bearing seat, a plane bearing and a deep groove ball bearing. The plane bearing and the deep groove ball bearing are installed on the joint at the bottom of the spinning screw. The plane bearing and the deep groove ball bearing are arranged in the bearing seat, and the pressure head sleeve is installed on the bearing seat.

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