Mounting fixture for piston of automobile engine

Abstract

The utility model discloses an automobile engine piston mounting fixture, which belongs to the field of tools for vehicle engineering, and is characterized by comprising a chuck, positioning columns are arranged on a plurality of clamping jaws of the chuck, all the positioning columns are annularly distributed, and a passive pushing block is arranged at one end, close to the positioning columns, of the chuck. The end, away from the positioning column, of the chuck is provided with an active pushing block, and a connecting rod penetrating through the chuck is connected between the active pushing block and the passive pushing block.

Description

Technical Field

[0001] The utility model belongs to the field of vehicle engineering tools, and more specifically relates to an automobile engine piston mounting fixture. Background Art

[0002] The engine piston is precisely installed in the engine cylinder and forms a seal with the cylinder wall through the piston ring. During installation, it is necessary to ensure that the piston is correctly connected to the connecting rod and pushed smoothly along the axis of the cylinder until a closed space is formed with the cylinder head.

[0003] Currently, if Figure 1 and Figure 2 As shown, the operation of inserting the piston 7 into the cylinder body 8 is still done by manual positioning. When inserting, one hand needs to hold the side wall of the piston 7, and the other hand needs to push the piston 7 into the cylinder body 8. During the pushing process, the fingers of the latter hand need to gradually move from the side wall of the piston 7 (such as Figure 1 As shown) moves to the end wall of the piston 7 (as shown Figure 2 As shown), it is inconvenient to apply force. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of the utility model is to provide an automobile engine piston mounting fixture, which has the advantages of being ergonomic and easy for the hand to apply force.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A car engine piston mounting fixture comprises a chuck, a plurality of jaws of the chuck are provided with positioning columns, all of the positioning columns are distributed in a ring shape, a passive pushing block is provided at one end of the chuck close to the positioning columns, an active pushing block is provided at one end of the chuck away from the positioning columns, and a connecting rod penetrating the chuck is connected between the active pushing block and the passive pushing block.

[0007] The advantages of this solution are at least that the piston is placed in the annular structure formed by the positioning column, and then one hand holds the positioning column to align the piston with the engine cylinder body, and then the other hand can grasp the active pushing block to push forward. The grasping operation is more ergonomic than with a flat palm, and it is easier for the hand to apply force.

[0008] The utility model is further configured as follows: a chamfer is provided on an edge of one end of the passive pushing block away from the active pushing block.

[0009] The utility model is further configured as follows: the active pushing block is threadedly connected with the connecting rod.

[0010] The utility model is further configured as follows: a thread groove is provided at one end of the active pushing block close to the connecting rod, and the connecting rod penetrates into the thread groove and is threadedly connected thereto.

[0011] The advantages of this solution are at least that the threaded connection makes it easy to disassemble and assemble the clamp, and the threaded groove prevents the connecting rod from passing through the active push block, thus avoiding the problem of the end of the connecting rod protruding from the active push block and causing injuries to the hand.

[0012] In summary, the utility model has at least the following advantages:

[0013] 1. By setting up this tool, you only need to place the piston in the annular structure formed by the positioning column, then hold the positioning column with one hand to align the piston with the engine cylinder, and use the other hand to grasp the push block and push it forward. The grasping operation is more ergonomic than flat palm, and it is easy for the hand to apply force;

[0014] 2. The active push block is threadedly connected to the connecting rod, which makes the fixture easy to disassemble and assemble, and the thread groove prevents the connecting rod from passing through the active push block, thus avoiding the problem of the end of the connecting rod protruding from the active push block and causing injuries to the hand. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the first state of the process of pushing the piston into the cylinder in the prior art;

[0016] Figure 2 It is a schematic diagram of the second state of the process of pushing the piston into the cylinder in the prior art;

[0017] Figure 3 It is an overall schematic diagram of a preferred embodiment of the utility model;

[0018] Figure 4 This is a schematic explosion diagram of a preferred embodiment of the utility model.

[0019] Figure numerals: 1. chuck; 11. clamping jaw; 12. mating component; 2. positioning column; 3. passive push block; 4. active push block; 5. connecting rod; 6. threaded groove; 7. piston; 8. cylinder body; 9. palm. DETAILED DESCRIPTION

[0020] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0021] A piston mounting fixture for an automobile engine, such as Figure 3 and Figure 4 As shown, it includes a chuck 1, and one side of the chuck 1 has a plurality of jaws 11. The chuck 1 in this solution is a manual chuck 1. During operation, the mating component 12 on the chuck 1 is rotated by a wrench to adjust the distance between the jaws and the axis. It is worth mentioning that the manual chuck 1 belongs to the prior art, and its principle is not repeated. In some embodiments, positioning columns 2 are provided on the plurality of jaws 11 of the chuck 1, and all the positioning columns 2 are distributed in a ring shape, thereby forming a ring structure.

[0022] A passive push block 3 is provided at one end of the chuck 1 close to the positioning column 2, and the edge of one end of the passive push block 3 away from the active push block 4 is preferably chamfered, and an active push block 4 is provided at one end of the chuck 1 away from the positioning column 2, and a connecting rod 5 that penetrates the chuck 1 is connected between the active push block 4 and the passive push block 3. The piston 7 is placed in the annular structure formed by the positioning column 2, and then one hand holds the positioning column 2 so that the piston 7 is aligned with the engine cylinder 8, and then the other hand can grasp the active push block 4 and push it forward. The grasping operation is more ergonomic than the flat palm 9, and it is easy for the hand to apply force.

[0023] In order to facilitate the installation of the active push block 4, in some embodiments, the active push block 4 is threadedly connected to the connecting rod 5. Specifically, a thread groove 6 is provided at one end of the active push block 4 close to the connecting rod 5, and the connecting rod 5 penetrates into the thread groove 6 and is threadedly connected thereto. The provision of the thread groove 6 also avoids the problem of the end of the connecting rod 5 protruding from the active push block 4 and causing a hand injury.

[0024] The working process and beneficial effects of the utility model are as follows: the piston 7 is placed in the annular structure formed by the positioning column 2, and then one hand holds the positioning column 2 to align the piston 7 with the engine cylinder 8, and then the other hand can grasp the active pushing block 4 and push it forward. The grasping operation is more ergonomic than the flat palm 9, and it is easy for the hand to apply force.

[0025] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the design concept of the present invention should be included in the protection scope of the present invention.

Claims

1. A piston mounting fixture for an automobile engine, characterized in that: The invention comprises a chuck (1), wherein a plurality of clamping jaws (11) of the chuck (1) are provided with positioning posts (2), wherein all the positioning posts (2) are distributed in a ring shape, wherein a passive push block (3) is provided at one end of the chuck (1) close to the positioning posts (2), and an active push block (4) is provided at one end of the chuck (1) away from the positioning posts (2), and a connecting rod (5) penetrating the chuck (1) is connected between the active push block (4) and the passive push block (3).

2. The automobile engine piston mounting fixture according to claim 1, characterized in that: The passive pushing block (3) has a chamfered edge at one end away from the active pushing block (4).

3. The automobile engine piston mounting fixture according to claim 1, characterized in that: The active pushing block (4) is threadedly connected to the connecting rod (5).

4. The automobile engine piston mounting fixture according to claim 3, characterized in that: A thread groove (6) is provided at one end of the active pushing block (4) close to the connecting rod (5), and the connecting rod (5) penetrates into the thread groove (6) and is threadably connected thereto.

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